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Sample records for dem institut fuer

  1. GSF-Forschungszentrum fuer Umwelt und Gesundheit, Institut fuer Hydrologie. Annual report 1995; GSF-Forschungszentrum fuer Umwelt und Gesundheit, Institut fuer Hydrologie. Jahresbericht 1995

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-09-01

    The 1995 annual report of the Institute of Hydrology presents the findings of 19 current research projects on different subjects in hydrology. It is supplemented by information on cooperation with other scientific institutions in the form of lists of publications and reports, lectures and posters, university teaching projects, and finished and current dissertations. (VHE) [Deutsch] Der Jahresbericht 1995 des Institutes fuer Hydrologie im GSF-Forschungszentrum fuer Umwelt und Gesundheit stellt die Ergebnisse von derzeit 19 laufenden Untersuchungen zu unterschiedlichen hydrologischen Themen vor. Ergaenzt werden die Ausfuehrungen durch einen Ueberblick ueber die Zusammenarbeit mit anderen wissenschaftlichen Institutionen in Form von Verzeichnissen der Veroeffentlichungen und Berichte, der Vortraege und Poster, der Beitraege zur Lehre an Hochschulen sowie der abgeschlossenen und laufenden Dissertationen. (VHE)

  2. The Institut for Mining - Chair in the Theory of Mining Methods and Operations at Clausthal Technological University; Das Institut fuer Bergbau - Professur fuer Bergbauliche Verfahrens- und Betriebslehre der TU Clausthal

    Energy Technology Data Exchange (ETDEWEB)

    Knissel, W.; Mischo, H. [Technische Univ. Clausthal, Clausthal-Zellerfeld (Germany). Inst. fuer Bergbau

    2002-09-05

    The Chair in the Theory of Mining Methods and Operations (Deep Mines) at the Institute for Mining at Clausthal Technological University deals with the theory of and research into underground extraction of solid mineral raw materials. With the concentration and concentration of the German mining industry the department has focussed more attention on foreign mining industries and utilisation of the earth's crust in general. The extractive mining industry is augmented by the underground utilisation of cavities for disposal purposes and for infrastructural tasks. Accordingly the courses offered have been extended towards environmental protection and geotechnics. In particular basic research in the field of disposal in mines has become one of the main areas of research in the department not least of all because of the financing from public funds. Theory, research and further training now cover underground extraction in mines, disposal in mines and rehabilitation of contaminated industrial sites. (orig.) [German] Die Proffesur fuer Bergbauliche Verfahrens- und Betriebslehre (Tiefbau) am Institut fuer Bergbau der TU Clausthal befasst sich in Lehre und Forschung mit der untertaegigen Gewinnung von festen mineralischen Rohstoffen. Mit dem Rueckgang und der Konzentration des deutschen Bergbaus hat sich der Lehrstuhl staerker dem Auslandsbergbau und allgemein der Erdkrustennutzung zugewandt. Der Gewinnungsbergbau findet seine Ergaenzung in der untertaegigen Nutzung von Hohlraeumen fuer Entsorgungszwecke und fuer Infrastrukturaufgaben. Dementsprechend ist das Studienangebot in Richtung Umweltschutz und Geotechnik erweitert worden. Insbesondere die Grundlagenforschung auf dem Gebiet des Entsorgungsbergbaus ist zu einem Forschungsschwerpunkt des Lehrstuhls geworden, nicht zuletzt aufgrund der Finanzierung aus oeffentlichen Mitteln. Lehre, Forschung und Weiterbildung decken heute den untertaegigen Gewinnungsbergbau, den Entsorgungsbergbau sowie die Sanierung von

  3. Chair of geotechnical processes at the Institute for geotechnics and mine surveying at Clausthal Technological University; Professur fuer Geotechnische Verfahren am Institut fuer Geotechnik und Marktscheidewesen der TU Clausthal

    Energy Technology Data Exchange (ETDEWEB)

    Meyer, N. [Technische Univ. Clausthal, Institut fuer Geotechnik und Marktscheidewesen (Germany)

    2003-08-14

    The Chair of Geotechnical Processes at the Institute for Geotechnics and Mine Surveying at Clausthal Technological University is concerned primarily with practical fundamental research in addition to teaching, in which comprehensive theoretical and practical experience from all areas of geotechnics is imparted. (orig.) [German] Der Lehrstuhl Geotechnische Verfahren am Institut fuer Geotechnik und Markscheidewesen der TU Clausthal befasst sich neben der Lehre, in der umfangreiche theoretische und praktische Erfahrungen aus allen Bereichen der Geotechnik vermittelt werden, in erster Linie mit der praxisnahen Grundlagenforschung. Die bearbeiteten Problemstellungen liegen bei der Bauwerk-Baugrund-Interaktion, Stabilitaetsproblemen bei Unterwasserboeschungen, der Umweltgeotechnik, der Geomesstechnik und dem Einsatz von Geokunststoffen in der Geotechnik und dem Bergbau. Die Forschungsvorhaben werden in enger Kooperation mit der Industrie durchgefuehrt. (orig.)

  4. Lectures held at the congress on ``Gas hydrates: problem substance / resource``, organised by the GDMK Division for ``Exploration and Extraction`` and the Institute for Mineral Oil and Natural Gas Research, in Clausthal-Zellerfeld (Harz) on 6/7 November 1997. Author`s manuscripts; Vortraege der Veranstaltung ``Gashydrate: Problemstoff/Resource`` des GDMK-Fachbereichs `Aufsuchung und Gewinnung` und dem Institut fuer Erdoel- und Erdgasforschung am 06. und 07. November 1997 in Clausthal-Zellerfeld (Harz). Autorenmanuskripte

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-12-31

    The following topics are dealt with in detail: the chemical and physical properties of gas hydrates as derivable from their phase behaviour; the significance and occurrence of gas hydrates in offshore areas; gas hydrates and permafrost in continental northern West Siberia; information on HYACE, a research project of the European Union on test drilling for gas hydrates in offshore areas; sediment-mechanical criteria of gas hydrate formation in deep-sea sediments; gas hydrate formation in gas cavern storages; the use of hydrate inhibitors in operating natural gas storages; and the inhibition of gas hydrates with kinetic inhibitors. Eight abstracts were abstracted individually for the Energy Database. (MSK) [Deutsch] Folgende Themen werden detailliert behandelt: die chemischen und physikalischen Eigenschaften von Gashydraten,welche aus dem Phasenverhalten der Gashydrate herzuleiten sind; zur Bedeutung und Vorkommen von Gashydraten im Offshore-Bereich; Gashydrate und Permafrost im kontinentalen noerdlichen Westsibirien; Informationen zu HYACE, einem Forschungsprojekt der Europaeischen Union zu Probebohrungen nach Gashydraten im Offshore-Bereich; sedimentmechanische Kriterien bei der Gashydratbildung in Tiefseesedimenten; die Gashydratbildung in Gaskavernenspeichern; der Einsatz von Hydratinhibitoren beim Betrieb von Erdgasspeichern sowie die Inhibierung von Gashydraten mit kinetischen Inhibitoren. Fuer die Datenbank Energy wurden acht Beitraege einzeln aufgenommen.

  5. Skywards - climate design for the Moscow Federation Tower; Dem Himmel entgegen - Klimadesign fuer den Federation Tower Moskau

    Energy Technology Data Exchange (ETDEWEB)

    Reiser, Claudius [Ebert-Ingenieure GmbH and Co. KG, Competence Center Nachhaltiges Bauen, Nuernberg (Germany)

    2008-06-15

    Advanced simulation tools were used in developing the climate design for the roof covering the taller of the two blocks at Moscow's Federation Tower. The all-glass roof space at a height of 365 m is designed to accommodate the finest and most exclusive hotel areas. Several restaurants, bars and lounges and a Sky Dance Club will offer entertainment and fabulous views across the whole city. Simulations were used to develop and verify a design that ensures thermal comfort taking into account architectural, climate and utilisation requirements. The structure and the building services were simulated based on a 3D model, and simulations were carried out for summer and winter scenarios. This paper describes the design process including load calculations and the development and assessment of the climate design by means of simulation. (Abstract Copyright [2008], Wiley Periodicals, Inc.) [German] In der Entwicklung des Klimakonzeptes der Turmkappe Ost des Federation Towers in Moskau wurden modernste Simulationswerkzeuge eingesetzt. Die vollstaendig glaeserne Turmkappe in 365 m Hoehe soll Raum fuer einen der schoensten und exklusivsten Bereiche des Hotels geben. Diverse Restaurants, Bars und Lounges sowie ein Sky Dance Club sollen einmal zum Verweilen und zur naechtlichen Vergnuegung einladen und dabei stets einen traumhaften Blick ueber die gesamte Stadt ermoeglichen. Mit Hilfe der Simulation wurde fuer die Turmkappe ein Klimakonzept entwickelt und ueberprueft, das die thermische Behaglichkeit unter Beruecksichtigung von Architektur, Klima und Nutzung gewaehrleistet. Dazu wurde die Architektur inklusive der Klimatechnik in einem 3D-Modell abgebildet und fuer den Sommer- und Winterfall berechnet. Der vorliegende Beitrag vollzieht den Planungsablauf von der Lastberechnung bis hin zur Erstellung und Bewertung des Klimakonzeptes in der Simulation. (Abstract Copyright [2008], Wiley Periodicals, Inc.)

  6. Fraunhofer-Institut fuer Umweltchemie und Oekotoxikologie. Annual report 1992

    International Nuclear Information System (INIS)

    1993-01-01

    The activity report 1992 of the Fraunhofer Institute for Environmental Chemistry and Ecotoxicology covers the research concept and the structure of the institute, the fields of activity and their focusses, a summary of research results, a general view at the projects and activities in cooperation with other institutes. The last part contains a detailed summary of the total report in English. (BBR) [de

  7. MPI fuer Physik und Astrophysik. Werner-Heisenberg-Institut fuer Physik - annual report 1983

    International Nuclear Information System (INIS)

    1983-12-01

    This annual report contains short description of the work performed at the named institute together with a list of publications and speeches. The work concerns experiments at CERN and at the storage rings PETRA and CESR, theoretical work on unified field theories and supersymmetry, as well as developments of the ALEPH detector for the LEP storage ring. (HSI) [de

  8. Kernforschungszentrum Karlsruhe. Institut fuer Datenverarbeitung in der Technik: Progress report on research and development works in 1984

    International Nuclear Information System (INIS)

    1985-02-01

    The Institut fuer Datenverarbeitung in der Technik (Institute for Data Processing in Engineering) works in the field of applied computer and systems analysis. The present report describes the activities of this Institute within the following KfK-projects: Reprocessing, Fusion Technology, Nuclear Material Safeguards, Nuclear Safety, and the Fast Breeder Project. (WB) [de

  9. Universitaet Mainz, Institut fuer Kernchemie. Annual report 2005

    International Nuclear Information System (INIS)

    Kratz, J.V.

    2006-11-01

    Compiled by the employees of the institute, the present 2005 annual report gives an overview of the scientific activities of the working groups of the Institute for Nuclear Chemistry. It is also intended as a account to all those who have promoted us financially and idealistically on the use of what has been not an insubstantial amount of public funds. The report again covers three main fields of research: nuclear chemistry in terms of fundamental problems; radiopharmaceutical chemistry and the use radiochemical methods for medical purposes; and highly sensitive and selective analyses for environmental, technical and biological problems. The report also describes the status of the institute's technical facilities and new technical developments. Finally it gives an account of the institute's output in terms of publications, conference contributions, dissertations, diploma theses, state examination theses and on the contributions of its teaching staff to study and advanced training programs

  10. Natural and anthropogenic environmental hazards. Research results of the Department of Applied Geology; Natuerliche und anthropogene Umweltgefaehrdungen. Forschungsergebnisse aus dem Lehrstuhl fuer Angewandte Geologie

    Energy Technology Data Exchange (ETDEWEB)

    Czurda, K.; Eiswirth, M.; Hoetzl, H. [comps.

    1998-12-31

    Applied geology is employed in mining geology, raw materials geology, engineering geology, and hydrogeology, of which the two last-mentioned are the most important for the Department of Applied Geology. This series of publications arose from the need of making research findings, dissertations, theses and conference papers accessible to the public faster and more comprehensively than in national and international journals. [Deutsch] Die Aufgaben der angewandten Geologie sind im weitesten Sinne in der Montangeologie, in der Rohstoffgeologie, in der Ingenieurgeologie und in der Hydrogeologie zu sehen. Der engere Aufgabenbereich der Institute fuer Angewandte Geologie konzentriert sich der heutigen Fragestellung entsprechend meist auf die Ingenieurgeologie und Hydrogeologie. Wenn wir daraus noch die Umweltgeologie ableiten, so ist der Lehr- und Forschungsschwerpunkt auch des Karlsruher Lehrstuhles fuer Angewandte Geologie (AGK=Angewandte Geologie Karlsruhe) umrissen. Die vorliegende Schriftenreihe ist aus der Notwendigkeit entstanden, Forschungsergebnisse, Dissertationen und ausgewaehlte Diplomarbeiten sowie Beitraege einschlaegiger Tagungen in Karlsruhe rascher und u.U. umfangreicher als in internationalen oder nationalen Journalen moeglich zu publizieren. (orig.)

  11. Institut fuer Kernchemie, Univ. Mainz. Annual report 1983

    International Nuclear Information System (INIS)

    Weber, M.

    1984-01-01

    This annual report contains extended abstracts about the work performed at the named institute together with a list of publications and speeches. The work concern fast chemical separations, the detection of short-lived nuclides, mass separations, nuclear spectroscopy, nuclear fission, heavy ion research, superheavy elements, radionuclide ecology, and the operation of the TRIGA Mainz reactor. (HSI) [de

  12. Kernforschungsanlage Juelich, Institut fuer Kernphysik: Annual report 1983

    International Nuclear Information System (INIS)

    Baur, G.; Mayer-Boericke, C.; Schult, O.; Seyfarth, H.; Speth, J.; Turek, P.

    1984-04-01

    This annual report contains extended abstracts of the work performed at the named institute together with a list of publications. The abstracts deal with nuclear reactions, nuclear spectroscopy, atomic collisions, solar energy, and technical developments. See hints under the relevant topics. (HSI) [de

  13. Max-Planck-Institut fuer Plasmaphysik. Annual report 1993

    International Nuclear Information System (INIS)

    1993-01-01

    In 1993 the first particle injector of the ASDEX Upgrade divertor tokamak was put into operation up to 6 MW of heating power. The main diagnostics were put into operation as also was a newly developed pellet centrifuge. At the Wendelstein 7-AS stellarator experiment the cooperation with Russian and German research institutes an electron cyclotron resonance heating was successful. The works of the Berlin Division of IPP and the coordination of research efforts with Kernforschungszentrum Karlsruhe are reported. (DG)

  14. KFK. Institut fuer Radiochemie research and development activities in 1982

    International Nuclear Information System (INIS)

    1983-02-01

    The Institute for Radiochemistry (IRCH, Director: Proj. D. Ache) is concerned with research and development programmes within two framework of the following projects: Reprocessing and Waste Processing; Fast Breeder; Nuclear Safeguards; and Nuclear Material Surveillance. Fundamental problems in the field of instrumental analysis (in particular surface chemistry, surface structure analysis and radiochemistry) are studied within the priority work programme 'Solids and Materials Research'. Water technology studies at the IRCH are included in the joint priority programmes 'Technology - Man - Environment'. (orig./RB) [de

  15. Institut fuer Festkoerper- und Werkstofforschung Dresden (IFW). Annual report 1999

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-07-01

    This annual report of the IFW (Institute of Solid State Physics and Materials Research), Dresden, presents the research fields and subjects investigated in 1999. It is structured as follows: Highlights, Techonology transfer, Reports from Research areas, Publications, Patents, PhD Theses, Awards, Conferences and Colloquia, Organisation of the IFW Dresden, and the new structure of the IFW's Research Programme from 2000 on. Two of the nine highlight topics are separately analysed for this database.

  16. Fraunhofer-Institut fuer Umweltchemie und Oekotoxikologie. Annual report 1993

    International Nuclear Information System (INIS)

    1994-01-01

    The institute's research objectives focus on applied problems related to the exposure of the environment and humans by chemical substances and their ecotoxicological effects, as well as the minimization of contaminations and the sanitation of occurred damage. The development, improvement and establishment of a broad spectrum of theoretical models and experimental methods are the basis of the instiute's work providing for governmental agencies, for trade and industry facilities to solve specific problems in environmental chemistry and ecotoxicology as well as comprehensive, pragmatic approaches to achieve protection at the ecosystem level. (orig.) [de

  17. Werner-Heisenberg-Institut fuer Physik. Annual report 1982

    International Nuclear Information System (INIS)

    1982-12-01

    This annual report contains extended abstracts about the work done at the named institute together with a list of publications, speeches, seminars, and lectures. The work concerns experimental studies on high energy physics at CERN and at the PETRA storagering with the CELLO detector together with some planned experiments on the Tevatron accelerator, developments for future LEP experiments, theoretical studies on grand unification, QCD phenomenology, lattice gauge theories, supergravity, quantum mechanics, and non-relativistic many-body theory, as well as developments of radiation detectors. (HSI) [de

  18. Annual report 1980 of the Institut fuer Physik of the Max-Planck-Institut fuer Physik und Astrophysik, Muenchen

    International Nuclear Information System (INIS)

    1980-12-01

    In this annual report the fields of research done at the MPI for Physics and Astrophysics are summarized. These concern mainly high energy physics. The theoretical work deals with field theory with special regards to unified gauge theories while the Institute contributes to some experiments at DESY and CERN. Furthermore, a list of publications and theses is given. (HSI)

  19. Institut fuer Materialforschung. Research and development activities in 1994

    International Nuclear Information System (INIS)

    1995-01-01

    The IMF consists of three institutes with different tasks: IMF I works mainly on the development of metals, nonmetals and composite materials and on problems concerning the structure and properties of interfaces and protective layers. IMF II works on component reliablility, failure mechanisms and damage analysis. IMF III works on problems of process engineering in the production of ceramic powders and ceramic, metallic and polymeric microstructures, as well as on the design of nuclear components and the optimisation of corrosive materials. The IMF supports the research activities of Karlsruhe Research Center, especially in nuclear fusion research, microsystems engineering, nuclear safety, superconductivity, and low-pollution and low-waste processes. Materials and strength problems are investigated for future fusion reactors, high-performance microsystems, and safety problems in nuclear engineering. (orig./MM) [de

  20. Results report on research and development work 1980 of the Institut fuer Nukleare Entsorgungstechnik

    International Nuclear Information System (INIS)

    1981-02-01

    The Institut fuer Nukleare Entsorgungstechnik performs research and development work on the treatment, solidification and final storage of radioactive wastes. The main target of the work is to develop processes and concepts for a safe disposal of radioactive wastes from nuclear plants. The work on waste treatment is carried out within the framework of the reprocessing and waste treatment project. It comprises of the development and characterization of ultimate storable waste products as well as the development of processes for the treatment and solidification of radioactive wastes mainly from reprocessing irradiated nuclear fuels. The studies on the ultimate storage are carried out together with the 'Gesellschaft fuer Strahlen- und Umweltforschung'. Their main concern is the analysis of processes in the neighbourhood of ultimate storage (waste product, packing, filling and immediate surrounding storage medium) for normal and accident conditions and their safety technical optimization. The report is supplemented by a list of publications and lectures of the institute coworkers in 1980. (orig./RB) [de

  1. Bayreuther Institut fuer Terrestrische Oekosystemforschung (BITOEK). Intermediate report 1990. Bayreuther Institut fuer Terrestrische Oekosystemforschung (BITOEK). Jahreszwischenbericht 1990

    Energy Technology Data Exchange (ETDEWEB)

    1992-01-01

    The institute introduces its 13 research projects and shows first results of five of these projects. The projects are: (1) nitrogen cycle and spring water chemism of forest ecosystems; (2) waters and ion balance in forest inventories damaged differently and water chemism of the regional effluents; (3) spacetime registration of the water cycle in spruce ecosystems; (4) metabolism of pesticide degradation products in butterfly caterpillars and balancing in the food network; (6) dependence of denitrification on soil pH in coniferous forests; (7) changes of microbial activity in pine forest soils through atmospheric pollution; (8) N transformation in a spruce inventory; (9) N uptake through roots and their importance for Mg cycle and growth; (10) transpiration of spruces; (11) host-fungus relationships in the case of spruce ectomycorrhiza; (12) Collemboles fauna in spruce forest soils; (13) Gamasides fauna in spruce forest soils depending on load and/or fertilizing. (UWA).

  2. Progress report on research and development activities of the Institut fuer Neutronenphysik und Reaktortechnik in 1980

    International Nuclear Information System (INIS)

    1981-02-01

    The Institut fuer Neutronenphysik und Reaktortechnik carries out research in nuclear enginering especially in the context of the development of sodium-cooled fast breeder reactors. The institute does theoretical and experimental work in equal shares. Most of the work is done in cooperation with other institutes and industrial groups. In the framework of the Projekt Schneller Brueter , the institute investigates the layout and safety problems, from a reactor physics point of view of large fast breeder cores. Problems concerning the effects of LWR accidents on population and environment are investigated in the Projekt Nukleare Sicherheit . To the Projekt Wiederaufarbeitung , the institute is contributing work on fuel cycle physics and the development of a suitable instrumentation. In the field of nuclear safeguards, the implementation of monitoring systems is being investigated. Research outside projects is being done on technical and physical problems of fusion by inertial confinement and application of nuclear power on the transportation sector with hydrogen as an energy source. The main results obtained in 1980 in the various projects are presented. (orig./RW) [de

  3. Electric heat pump for motor vehicles with R744 (CO{sub 2}) as refrigerant; Elektrisch betriebene Waermepumpe fuer Fahrzeuge mit dem Kaeltemittel R744 (CO{sub 2})

    Energy Technology Data Exchange (ETDEWEB)

    Huenemoerder, W.; Kakehashi, N. [DENSO Automotive Deutschland GmbH, Eching (Germany)

    2003-07-01

    R744 (carbon dioxide) is suited for low ambient temperatures. A motor car air conditioner on this basis was developed for engines with low heat emissions. The passenger compartment is heated and cooled by a single system comprising a semihermetic electric compressor and three air-filled heat transfer units, i.e. an evaporator and a gas cooler for heating inside the car and a heat exchanger on the outside which can serve as evaporator or gas cooler as desired. The system can be operated in four modes: Heating without dehumidification, heating and dehumidification, cooling, thawing of the external heat exchanger. In contrast to conventional systems, the heating and cooling mode are not independent of each other, so a special control concept was developed which enables automatic operation of the four above modes of operation. The system is used in the Toyota FCHV fuel cell car. (orig.) [German] Das Kaeltemittel CO{sub 2} (R744) kann auch bei niederen Umgebungstemperaturen fuer Waermepumpenanwendungen eingesetzt werden. Eine CO{sub 2}-Klimaanlage mit Waermepumpe wurde fuer die Klimatisierung (Heizen, Kuehlen und Entfeuchten) des Fahrzeuginnenraumes entwickelt. Diese Anlage ist fuer Elektro- und Breenstoffzellenfahrzeuge geeignet, bei denen keine Motorabwaerme zu Heizzwecken zur Verfuegung steht. Heizen und Kuehlen des Innenraumes erfolgt durch ein einziges System unter Verwendung derselben Komponenten. Die Anlage besteht aus einem halbhermetischen elektrischen Verdichter und drei luftbeaufschlagten Waermeuebertragern - ein Verdampfer und ein Gaskuehler (zum Heizen) im Innenraum und ein Waermeuebertrager aussen, der - je nach Betriebsart - als Verdampfer oder Gaskuehler betrieben wird. Die Anlage kann in vier Betriebsarten betrieben werden: Heizen ohne Entfeuchtung, Heizen mit Entfeuchtung, Kuehlen, Abtauen des aeusseren Waermeuebertragers. In konventionellen Systemen koennen Heiz- und Kuehlsystem unabhaengig voneinander geregelt werden. Bei dem hier vorgestellten

  4. Progress report on R + D activities of the Institute fuer Reaktorenentwicklung in 1980

    International Nuclear Information System (INIS)

    1981-02-01

    The Institute fuer Reaktorentwicklung is mostly concerned with technical problems in the development and safety assurance of nuclear facilities. The tasks, some of which are carried out in cooperation with other internal and external institutions, are of a theoretical and experimental nature, most of them in the field of reactor safety. The two main fields are the Projekt Schneller Brueter (PSB) and Projekt Nukleare Sicherheit (PNS). The contributions for PSB, i.e. layout and safety of sodium-cooled fast breeder reactors, refer to investigations of the thermohydraulic and neutron-kinetical response of the core to accidents of very low probability as well as investigations of the effects of local core coling disturbances, with special consideration to possible damage propagation mechanisms and the possibility of detecting these processes. In the field of LWR safety, dynamic loads on core internals have been investigated during the HDR blowdown experiments as well as dynamic loads on containment structures and fuel rod behaviour during LOCA. (orig.) [de

  5. A new subsidy regulation for coal after 2002 on the basis of the EC treaty; Eine neue Beihilferegelung fuer die Steinkohle nach dem Jahr 2002 auf der Basis des EG-Vertrags

    Energy Technology Data Exchange (ETDEWEB)

    Reichel, W. [Gesamtverband des Deutschen Steinkohlenbergbaus, Essen (Germany)

    2000-08-10

    Coal is and will remain the most important indigenous energy resource in Europe. Hence, an appropriate ECSC regulation must be drawn up for coal subsidies in the EC Treaty after 2002 to enable a core mining industry based on the long-term safeguarding of supply. This is primarily not a legal, but a political question. Neither Kyoto nor the expansion of natural gas or image problems militate against coal. Its future contribution to the energy mix requires above all advances in technology. (orig.) [German] Die Kohle ist und bleibt die wichtigste heimische Energieressource Europas. Fuer die Kohlenbeihilfen muss daher ab dem Jahr 2002 eine adaequate EGKS-Nachfolgeregelung im Rahmen des EG-Vertrags getroffen werden, um einen mit der langfristigen Versorgungssicherung begruendeten Kernbergbau zu ermoeglichen. Dies ist primaer keine rechtliche, sondern eine politische Frage. Weder Kyoto noch die Erdgasexpansion oder Imageprobleme sprechen grundsaetzlich gegen die Kohle. Ihr zukuenftiger Beitrag zum Energiemix erfordert vor allem eine Technikoffensive. (orig.)

  6. 1981 research programme and budget of Hahn-Meitner-Institut fuer Kernforschung Berlin

    International Nuclear Information System (INIS)

    Anon.

    1981-01-01

    Hahn-Meitner-Institut fuer Kernforschung Berlin (HMI) is one of the twelve large research centers of the Federal Republic of Germany; like the other centers, it has to present a combined research programme and budget (programme budget) every year. In these programme budgets, as in the medium-term financial planning in the federal budget, planning for the current year is combined with a medium-term plan for the three next years. For the year 1981, the budget of HMI includes a total expenditure of about DM 85 million, DM 71.2 million of which are direct R + D expenditures. This R + D programme is carried by 396 of the total staff of 705. Research is done in the following fields (approximate figures): Heavy ion physics DM 23.0 million. Radiation- and photochemistry DM 11.4 million. Solid state research DM 20.9 million. Nuclear chemistry DM 8.9 million. Data processing/electronics DM 7.0 million. (orig./UA) [de

  7. The Institute for Mining Science I at the Rhineland-Westphalia Technological University in Aachen; Das Institut fuer Bergbaukunde I der RWTH Aachen

    Energy Technology Data Exchange (ETDEWEB)

    Martens, P.N.; Moellerherm, S.; Rattmann, L. [Technische Hochschule Aachen (Germany). Lehrstuhl und Inst. fuer Bergbaukunde 1

    2001-02-08

    The Institute for Mining Science I has been associated with the extraction of raw materials for over one hundred years. The main areas of work of the Institute have always been adapted to current requirements according to general developments in the raw materials sector and in this environment. The work in research and teaching has recently been extended by new fields. Today mining and sustained handling of resources, geotechnics, raw material management and underground disposal of waste are examples of parts of a comprehensive range of competences. The close interlinking of theory and practice allows students to broaden their knowledge in interdisciplinary and international projects. The graduates are thus prepared in an excellent manner for their future tasks. (orig.) [German] Seit ueber hundert Jahren steht das Institut fuer Bergbaukunde I fuer Gewinnung von Rohstoffen. Schwerpunkte der Arbeiten des Instituts wurden, allgemeinen Entwicklungen in der Rohstoffbranche und in deren Umfeld entsprechend, stets den aktuellen Erfordernissen angepasst. Die Arbeit in Forschung und Lehre ist in den letzten Jahren um neue Bereiche erweitert worden. Heute sind Bergbau und nachhaltiger Umfang mit Ressourcen, Geotechnik, Rohstoffwirtschaft sowie untertaegige Abfallentsorgung als Beispiele fuer Teile eines umfassenden Kompetenzspektrums zu nennen. Die enge Verzahnung von Theorie und Praxis ermoeglicht Studierenden, ihre Kenntnisse fruehzeitig in interdisziplinaeren und internationalen Projekten zu vertiefen. Damit werden die Absolventen auf ihre zukuenftigen Aufgaben in hervorragender Weise vorbereitet. (orig.)

  8. Max-Planck-Institut fuer Physik. Werner-Heisenberg-Institut. Annual report 1993

    International Nuclear Information System (INIS)

    1994-03-01

    The Institute's main field of activity is research into elementary particles and their interactions. The verification of the standard model of elementary particle physics was at the center of interest in the phenomenological investigations. The spectrum of experimental activities on particle accelerators is supplemented by experiments on astro-particle physics and cosmic sources. Segmented semiconductor detectors were developed for investigations in high-energy physics. The 1993 annual report also contains organisational and staff data and a survey of activities. (DG) [de

  9. The Institute of Automotive Engineering at the Technical University of Dresden; Das Institut fuer Verbrennungsmotoren und Kraftfahrzeuge (IVK) an der TU Dresden

    Energy Technology Data Exchange (ETDEWEB)

    Bergmann, M.

    1995-05-01

    The Institute of Automotive Engineering belongs to the oldest German Institutes of this kind at all. Founded in 1918, the Institute reviews a history of over 75 years. Students training at the Institute takes aim at a future emloyment in fields of research and development and design and computing. Both car manufactures and suppliers appreciate the practice-oriented education given at the Institute. Corresponding to the internal structure the Institute provides a training at following teaching and research fields: Internal Combustion Engines, Automotive Drive Engineering and Automotive Electrics/Electronics. For that the Institute is equipped with modern test bench facilities and CAD/CAE workstations. (orig.) [Deutsch] Das IVK blickt auf eine lange Tradition zurueck und zaehlt noch heute zu den fuehrenden Ausbildungs- und Forschungsstaetten fuer Kraftfahrzeug- und Motoreningenieure. Derzeit bestehen drei Professuren: Verbrennungsmotoren, Kraftfahrzeug- und Antriebstechnik sowie Kraftfahrzeug-Elektronik/-Elektrik. (orig.)

  10. 25 Jahre - Institut fuer Geodaesie, Teil 3: Aus dem Leben des Instituts (25 Years - Institute of Geodesy, Part 3: The Life of the Institute)

    Science.gov (United States)

    2000-01-01

    Welsch SCHRIFTENREIHE UNIVERSITAT DER BUNDESWEHR MONCHEN 20080707 028 A %°(w Der Druck dieses Heftes wurde aus Haushaltsmitteln der Universitdt der...Verwendung hi prliziser Ephemeriden. Espe Das Ergebnis der Be- Sali ferr ktal echnungen waren 3d - @ Koordinaten sowie geo- s1fr graphische Koordinaten...1982, Aalborg Un- B. Eissfeller, G. W. Hein: A Contribution to 3d - versity Centre, Denmark. 431 S. Operational Geodesy. Part 4: The Observation Heft 8

  11. Insitut fuer Stroemungsmechanik und Hydraulische Stroemungsmaschinen, University of Stuttgart - topical research; Aktuelle Forschungsarbeiten des Instituts fuer Stroemungsmechanik und Hydraulische Stroemungsmaschinen

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-12-31

    Number 9 of the communications of the institute offers an overview of its fields of research. Described are both projects lately finalized but which are still topical, and investigations currently under way which have already provided useful results. Part of the contributions will be submitted in their full versions as theses, others are condensations of reports commissioned by industry. (orig./GL) [Deutsch] Das vorliegende Heft Nr. 9 der Institutsmitteilungen bietet einen Ueberblick ueber die Arbeitsgebiete des Institutes. Es wurden sowohl Arbeiten aufgenommen, die in letzter Zeit abgeschlossen wurden, aber noch nicht an Aktualitaet verloren haben, als auch solche Untersuchungen, die noch im Gange sind, aber bereits zu brauchbaren Ergebnissen gefuehrt haben. Ein Teil der Beitraege wird ausfuehrlich in Form von Dissertationen vorgelegt werden, bei anderen handelt es sich um Kurzfassungen von Berichten, die im Rahmen von Industrieauftraegen erstellt wurden. (orig./GL)

  12. On the way to business intelligence - Modern IT solutions for the liberalized energy market; Auf dem Weg zur Business Intelligence - moderne IT-Loesungen fuer den liberalisierten Energiemarkt

    Energy Technology Data Exchange (ETDEWEB)

    Hecker, W.; Kraus, M. [Gedos mbH, Wuerzburg (Germany). Div. Plan/Build

    2000-04-17

    The rapid change in the energy sector from a seller's market to a buyer's market shifted the focus to customer relationship management as a priority task of management. Any professional CRM system requires as a basic step a new corporate approach, abandoning departmental thinking for a holistic, process-oriented corporate management concept, which in turn has to rely on efficient marketing and sales information systems offering to staff members online access to the relevant information about customers and their needs. As for industrial or commercial buyers for example, such a database has to show the companies' demand profiles, information on plant and equipment as well as the processes, contracts, and orders. (orig./CB) [German] Der schnelle Wandel der Energieversorgung vom Angebots- zum Kaeufermarkt stellt den Kunden in den Mittelpunkt aller Bemuehungen. Hier setzt Customer Relationship Management (CRM) ein. Die Basis fuer ein professionelles CRM schaffen neben einer grundlegenden Abkehr vom Abteilungsdenken zur Prozessorientierung leistungsstarke Vertriebsinformationssysteme, die aufgabenorientiert jedem Mitarbeiter den Zugriff auf alle relevanten Informationen ueber den Kunden ermoeglichen. Im Industrie- und Gewerbekundenbereich sollten z.B. Unternehmens- und Lastprofil, Angaben zur Betriebsausstattung und -prozessen, Vertraege und Auftraege verfuegbar sein. (orig.)

  13. Fraunhofer Institut fuer Molekularbiologie und Angewandte Oekologie (IME). Annual report 2011/2012; Fraunhofer Institut fuer Molekularbiologie und Angewandte Oekologie (IME). Jahresbericht 2011/2012

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2012-03-15

    The Annual report 2011/2012 of the Fraunhofer Institute for molecular biology and applied ecology includes the following contributions: (A) Molecular Biology: Predictive markers for chronic inflammation. Artificial forisomes: a new generation of contractile biomaterials. A screening assay for the analysis of gene expression in tobacco. Plant-based production of human antibodies in 200-L-single-use bioreactors. Extending a core competence: antibody production in plants. Optimizing plant extract filtration in biopharmaceutical production processes. Malaria transmission-blocking vaccines. Anti-infective agents from the Asian lady beetle. Exploring the biotechnological potential of insect symbionts. Syngas - a platform fermentation substrate. (B) Ecology: Determination of microbial activity in liquid manure - a novel approach. Suitability of extraction methods to assess the bioavailability of mineral oil. Homogeneity of sampling areas. Extraction of higher-tier data from lysimeter studies using inversePELMO. PFC transfer into plants - contribution to EU-PERFOOD. Preparation of fortified experimental diets for fish metabolism studies. Prioritization of biocidal substances for an environmental monitoring. Transformation/dissolution testing - test system and speciation analysis. Fish early life stage toxicity of nanosilver. Biomagnification studies according to OECD test guideline 305. Aquatic macrophyte tests under the new plant protection regulations.

  14. Fraunhofer Institut fuer Molekularbiologie und Angewandte Oekologie (IME). Annual report 2012/2013; Fraunhofer Institut fuer Molekularbiologie und Angewandte Oekologie (IME). Jahresbericht 2012/2013

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2013-03-15

    The Annual report 2012/2013 of the Fraunhofer Institute for molecular biology and applied ecology includes the following contributions: (A) Molecular Biology: A technology platform for human monoclonal antibodies against malaria antigens. Reducing the cold sweetening of potatoes during cold storage. BY2 cell - free lysate: an alternative eucaryotic in vitro translation system. Automated animal cell culture. Improvement of resource-use efficiency and productivity in crop plants. Optimizing transient protein expression in tobacco using predictive models. Microbial master-cell banks for biopharmaceutical production. Development and implementation of a plant-produced vaccine against yellow fever. Insect antennae as in situ biosensors. Communal and individual immunity - their relationship in Tribolium castaneum. A Drosophila model for aging. Analysis of insect transcriptomes, Biofuels: Hexanol production with Clostridia. Application of Targeted Proteomics for Metabolic Engineering of Clostridia. The Fraunhofer Future Foundation Malaria Project. Characterization and validation of predictive human experimental pain models. FCR Center for Systems Biotechnology business areas progress report. (B) Applied Ecology: Transformation/dissolution testing of silver nanoparticles. Effect of silver nanoparticles in the context of sewage sludge used in agriculture. Feasibility of biotic ligand models for routine monitoring. Estimating reasonable application dates related to BBCH crop development stages. Bioconcentration studies with the freshwater amphipod Hyalella azteca. Fish life cycle tests: Static vs. flow-through exposure. Vulnerable fish species for risk assessment of pesticides in Europe. Ecotoxicological testing of armor stones in mesocosms. The effect of wild yeast in traditional wines. Lifestock metabolism studies at Fraunhofer IME. Column generated concentrations of highly-lipophilic test substances.

  15. Fraunhofer Institut fuer Molekularbiologie und Angewandte Oekologie (IME). Annual report 2014/2015; Fraunhofer Institut fuer Molekularbiologie und Angewandte Oekologie (IME). Jahresbericht 2014/2015

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2015-07-01

    The Annual report 2014/2015 of the Fraunhofer Institute for molecular biology and applied ecology includes the following contributions: (A) Molecular Biology: TheraSECOURE - Novel immunotherapeutics for targeted cancer therapy; ''MultiNaBel ''- Automated diagnosis of leukemia; Breeding potato for optimized specialty starches; NGS-based zygosity detection in transgenic maize; High-throughput screen ing system for cellulases based on microfluidic devices; Filter aids reduce production costs for plant-derived biopharmaceuticals; Transient expression of recombinant proteins in packed plant cells; ERA-NET Biodiversa EXOTIC project on the invasive harlequin ladybird; AIM-Biotech supported by the Fraunhofer-Max Planck Cooperation program; Metabolic control analysis of the MEP pathway; Metabolic engineering of Clostridium spp. by genomic integration; The Fraunhofer Future Foundation malaria project; Autoantibodies to type 11 collagen as biomarkers of rheumatoid arthritis; Development of a new drug for the treatment of sepsis; Databionic drug research; Structure-based drug design; Neu{sup 2}: competence consortium for multiple sclerosis drug development; Natural compounds from marine fungi for the treatment of cancer; FCR Center for Systems Biotechnology (CSB): Two selected projects; Development and implementation of a plant-derived vaccine against yellow fever. (B) Applied Ecology: Comparison and improvement of laboratory water/sediment test systems; Inter-laboratory comparison of Hyalella Azteca exposure tests lasting 10-42 days; Substance- and matrix-related environmental monitoring of biocides; GERDA-geobased runoff, erosion and drainage risk assessment; The minimum detectable difference and reliability of mesocosm studies; Mechanistic effect models for the ecological risk assessment of pesticides; Molecular biology test for the online analysis of spontaneously-fermented wines; Coupling two test systems to determine the effect of wastewater

  16. Structure, design and statistical programme library of the meteorological database of Potsdam-Institut fuer Klimaforschung; Struktur, Aufbau und statistische Programmbibliothek der meteorologischen Datenbank am Potsdam-Institut fuer Klimaforschung

    Energy Technology Data Exchange (ETDEWEB)

    Oesterle, H.; Glauer, J. [Potsdam-Institut fuer Klimafolgenforschung (PIK), Potsdam (Germany); Denhard, M. [Frankfurt Univ. (Germany). Inst. fuer Meteorologie und Geophysik

    1999-01-01

    The relational database management system (ORACLE) using different client interfaces (browser, SQL, precompiler) is the most important basis for data organization and storage. The creation of a data bank system at PIK includes: Acquisition of meteorological data series for the projects executed at PIK; development of a database structure on the basis of daily values; control, analysis and classification of data into given storage formats; development and application of statistical software. There are currently 20 different types of data sets with daily, monthly and annual data which are functionally interconnected and updated. All data sets are continuously updated. (orig.) [Deutsch] Wesentliche Grundlage der Datenorganisation und -speicherung bildet das relationale Datenbanksystem ORACLE mit den dazugehoerigen Werkzeugen (Browser, SQL- und Precompiler). Die Entwicklung des Datenbanksystems am PIK umfasst folgende Etappen: - Erwerb von meteorologischen Datensaetzen fuer die am Institut laufenden Forschungsvorhaben; - Entwicklung einer Speicherstruktur auf der Basis von Tageswerten; - Kontrolle, Analyse und Einordnung der Daten in die vorgegebenen Speicherformate; - Entwicklung der zur Datennutzung notwendigen statistischen Programmbibliothek. Zur Zeit gibt es 20 verschiedene Typen von Datensaetzen. Sie enthalten taegliche, monatliche und jaehrliche Daten und sind funktional miteinander verbunden. Alle Datensaetze werden kontinuierlich erweitert. (orig.)

  17. Plea for the peaceful use of nuclear power. From the plenary lecture of the Federal Minister for the Environment, Nature Protection and Reactor Safety, Dr. Angela Merkel, May 21, 1996, Mannheim; Plaedoyer fuer die friedliche Nutzung der Kernenergie. Aus dem Plenarvortrag der Bundesministerin fuer Umwelt, Naturschutz und Reaktorsicherheit, Dr. Angela Merkel, am 21.5.96 in Mannheim

    Energy Technology Data Exchange (ETDEWEB)

    Merkel, A. [Bundesministerium fuer Umwelt, Naturschutz und Reaktorsicherheit, Bonn (Germany)

    1996-06-01

    The German Federal Ministry for the Environment, founded after the 1986 Chernobyl accident, has channeled the debate about the causes and the impact of that event. German power utilities, associations, and industries have tried to mitigate the consequences to the persons affected by organizing relief campaigns. Support granted by individual states and by the EU, but also private assistance schemes, are helping the operators of nuclear power plants in the young democracies to develop ways and means of helping themselves. Western know-how is adapted to the conditions prevailing in those countries. Eastern expertise should increasingly be used in the development of new reactor lines in the West. Technology can be transferred abroad only if it finds support and acceptance in its countries of origin. The terrorist actions accompanying the shipment of radioactive waste from La Hague to Gorleben in April 1996 have shown the decisive dependence on the preservation of public law and order of the peaceful uses of nuclear power. A s a consequence, the problems of spent fuel and waste management must be separated from further acceptance issues and solved as a matter of priority. Also with respect to the back end of the fuel cycle the polluter pays principle must be applied, according to which radioactive waste arising in German nuclear power plants must be stored in interim stores and repositories in the country, irrespective of any future internationalization of the back end of the nuclear fuel cycle. (orig.) [Deutsch] Das BMU, das nach dem Unfall in Tschernobyl 1986 eingerichtet wurde, hat die Diskussion um Ursachen und Folgen eines Ereignisses gepraegt. Deutsche EVU, Verbaende und Industrieunternehmen haben versucht, die Folgen fuer die Betroffenen durch Hilfsaktionen zu mildern; Unterstuetzungen durch Einzelstaaten und EU, aber auch private Patenschaften, begleiten die Kernkraftwerksbetreiber in den jungen Demokratien mit Hilfe zur Selbsthilfe. Westliches Know-how wird in

  18. Annual report 1984 of the 2. Institut fuer Experimentalphysik Universitaet Hamburg

    International Nuclear Information System (INIS)

    1984-12-01

    This annual report contains short descriptions of the work performed at the named institute together with a list of publications and theses. The work concern hyperfine structure and Moessbauer studies, synchrotron radiation experiments, contributions of this institute to the CHARM collaboration at CERN, e + e - interaction studies at PETRA, and detector developments. (HSI) [de

  19. Annual report on research and development 1980 of the Institut fuer Technische Physik

    International Nuclear Information System (INIS)

    1981-06-01

    Progress of the following working areas of the institute is reported: magnets for fusion technology (TESPE experiment, the Large Coil Task (LCT)); components and technology (development of high field superconductors (Nb 3 Sn, Nb 3 Al)), cooling techniques (HELITEX experiment); system studies on fusion reactor components; magnets for research and technology; basic research related to superconductivity; cryo-energy technology; the cryogenic engineering infrastructure of the institute. (GSCH)

  20. Results of research and development activities in 1983 of the Institut fuer Neutronenphysik und Reaktortechnik

    International Nuclear Information System (INIS)

    1984-02-01

    The Institute for Neutron Physics and Reactor Technology treats research problems of nuclear engineering mainly those that are related to the development of sodium-cooled fast breeder reactors and fusion reactor technology. The activities are in approximately equal parts of an experimental and theoretical nature. A great part of the research activities is performed in co-operation with other institutes and industrial groups in the framework of projects. For the Fast Breeder Reactor Project the Institute works on reactor physical design and safety problems by the core of large-scale fast breeder reactors. Questions concerning the consequences of accidents in lightwater reactors upon the environment and the population are treated as part of the Nuclear Safety project. The Institute contributes to the Reprocessing Project with theoretical investigations on the physics of the fuel cycle and by developing control devices for a reprocessing plant. In the framework of the Fusion Projekt the Institute is concerned with neutron physical and technological questions of the the breeder blanket. Independent institutional work concerns technical and physical questions on the interaction between light ion beams of a high energy density and substances. Apart from this, investigations are carried out on the application of nuclear energy in the field of traffic with hydrogen as energy carrier. (RW) [de

  1. Assessment of the potential of the Mainfranken region, northern Bavaria, for underground storage of geothermal energy; Erkundung des regionalen Potentials fuer die Untergrundspeicherung thermischer Energie in Mainfranken (UTEM)

    Energy Technology Data Exchange (ETDEWEB)

    Barthel, R; Heinrichs, G; Udluft, P [Lehr- und Forschungsbereich Hydrogeologie und Umwelt, Inst. fuer Geologie, Univ. Wuerzburg (Germany); Ebert, H P; Fricke, J [Abt. Waermedaemmung/Waermetransport, Bayerisches Zentrum fuer Angewandte Energieforschung e.V., Wuerzburg (Germany)

    1997-12-01

    The following paper presents a research project that is planned as a cooperation of the Geological Institute, University of Wuerzburg and the Bavarian Center of Applied Energy Research. In this project the potentials for underground thermal energy storage will be investigated in the region of Mainfranken, Northern Bavaria (Main = the river `Main`, Franken = Franconia). All aspects of underground storage will be studied with respect to the specific geographical and geological situation of the area. The study will provide a detailed map of possible storage sites, from which several case studies and at least one demonstration projects will result. (orig.) [Deutsch] Im vorliegenden Beitrag wird ein Forschungsprojekt vorgestellt, das gemeinsam vom Institut fuer Geologie der Universitaet Wuerzburg und dem Zentrum fuer Angewandte Energieforschung in Bayern geplant wird. Ziel des Projekts ist die Erkundung des Potentials fuer die Untergrundspeicherung thermischer Energie in Mainfranken (Nordbayern). Alle Aspekte der Untergrundspeicherung werden regionalspezifisch betrachtet. Neben der Erstellung differenzierter Karten geeigneter Standorte sind Fallstudien und Demonstrationsprojekte in Planung. (orig.)

  2. Potsdam Institute for Climate Impact Research. Biennial report 1996 and 1997; Potsdam-Institut fuer Klimafolgenforschung. Zweijahresbericht 1996 und 1997

    Energy Technology Data Exchange (ETDEWEB)

    Andre, G; Bruch, S vom [comps.

    1999-12-31

    The Potsdam Institute for Climate Impact Research was founded in 1992, the year that the Rio Conference was expected to grind out the blue-print for global sustainable development. The Institute`s general philosophy and methodology have been described before (e.g., in the introduction to the first biennal report 1994/95). Here, it is emphasized that the heterogeneity of the scientific tasks to be solved by PIK (ranging from empirical time series analysis to paradigms for ecosphere management) and the complexity of the environmental systems to be investigated call for a specific research strategy, which generally compromises between high-precision analysis and educated guesswork. (orig./KWE)

  3. Potsdam Institute for Climate Impact Research. Biennial report 1996 and 1997; Potsdam-Institut fuer Klimafolgenforschung. Zweijahresbericht 1996 und 1997

    Energy Technology Data Exchange (ETDEWEB)

    Andre, G.; Bruch, S. vom [comps.

    1998-12-31

    The Potsdam Institute for Climate Impact Research was founded in 1992, the year that the Rio Conference was expected to grind out the blue-print for global sustainable development. The Institute`s general philosophy and methodology have been described before (e.g., in the introduction to the first biennal report 1994/95). Here, it is emphasized that the heterogeneity of the scientific tasks to be solved by PIK (ranging from empirical time series analysis to paradigms for ecosphere management) and the complexity of the environmental systems to be investigated call for a specific research strategy, which generally compromises between high-precision analysis and educated guesswork. (orig./KWE)

  4. Institut fuer Heisse Chemie: Results of research and development work in 1984

    International Nuclear Information System (INIS)

    1985-02-01

    The planned facilities for radioactive waste management in the Federal Republic of Germany are the line of orientation along which R and D work proceeds in the Hot Chemistry Institute (IHCh) of KfK, and the Institute thus participates in two major projects, Treatment and Reprocessing of Radioactive Waste, and the Fast Breeder Reactor. The report gives an account of the work accomplished for testing and improving laboratory and technical-scale facilities for use in the PUREX process and for dissolver gas treatment and briefly explains basic chemical and analytical studies. (RB) [de

  5. Report on the results of research and development work in 1983 of the Institut fuer Kernverfahrenstechnik

    International Nuclear Information System (INIS)

    1984-02-01

    In this report a survey is presented of the continuing work of the Institute for Nuclear Processing Technology. The research relates primarily to the development and testing of the separation nozzle process for uranium isotope separation. Further subjects are the production and acceleration of negative H-ions (for fusion experiments) and investigations to elucidate the properties of helium clusters. (RB) [de

  6. Institut fuer Strahlen- und Kernphysik der Universitaet Bonn: Annual Report 1981-1982

    International Nuclear Information System (INIS)

    Jahn, R.; Guenther, C.

    1982-01-01

    This annual report contains extended abstracts about the work done at the named institute together with a list of publications. The work concerns nuclear reactions, fission, nuclear moments, electron and gamma spectroscopy, ion-solid interactions, archeometry, electric and magnetic hyperine fields, as well as experimental techniques. (MSI) [de

  7. Annual report 1982 of the 2. Institut fuer Experimentalphysik of Hamburg Univ

    International Nuclear Information System (INIS)

    1982-12-01

    This annual report contains short descriptions of the work done at the named Institute together with a list of publications and theses. The works concern studies on hyperfine structure by Moessbauer spectroscopy an νν angular correlation measurements, experiments with synchrotron radiation, experiments at the storage rings DORIS and PETRA, and neutrino experiments at CERN. (HSI) [de

  8. Progress report on research and development activities in 1982 of the Institut fuer Kernphysik

    International Nuclear Information System (INIS)

    1983-02-01

    In this report the research done in the named institute during 1982 is described. The research concern nuclear and particle physics together with intermediate energy physics and developments in accelerator technology with special regards to superconducting RF systems. In addition a list of publications is given. (HSI) [de

  9. Final report on research and development work in 1981 of the Institut fuer Kernphysik

    International Nuclear Information System (INIS)

    1982-02-01

    A review is given about the work done at the named Institute. It concerns measurements with the CELLO detector at the e + e - storage ring PETRA, nuclear physics with fast neutrons, experiments with stopped antiprotons, muonic atoms, intermediate energy proton and pion reactions, the development of radiation detectors, HF-superconductivity, the spallation neutron source, and inertial confinement. A list of publications is added. (HSI) [de

  10. Institut fuer Kernenergetik und Energiesysteme. Report of the years 1990 to 1993

    International Nuclear Information System (INIS)

    1994-04-01

    Over the years, the research activities of the IKE have developed beyond the specifically nuclear framework and cover today the fields of system and plant engineering as well as thermofluid dynamics. Reactor physics and applied radiation physics, nuclear installations and nuclear power plants, reactor safety and environment technology, plant safety, heating and room air technology, solar thermal installations as well as hydrogen technology are priority topics. The Institute is concerned with basic research and problems of applied research. (orig./HP) [de

  11. Institut fuer Nukleare Entsorgungstechnik: Status report on research and development 1984

    International Nuclear Information System (INIS)

    1985-02-01

    Some of the main points tackled by the Institute during 1984 included: Testing the glassification technique for radioactive waste and design and construction of a glassification plant; examination of the properties of glass products, testing of incineration of waste containing plutonium; solidification of concentrate containing alpha particles; separation of actinides and fission products from MAW; examination of the release procedures of radio-nuclides from waste solidified with cement; development of long-term containers for the final storage of HAW glass products in salt; model calculations for thermo-mechanical processes and for release mechanisms in final storage. (RB) [de

  12. Report on research and development activities 1980 of the Institut fuer Heisse Chemie

    International Nuclear Information System (INIS)

    1981-02-01

    The work done at the Institute for Hot Atom Chemistry is concerned with research and development in the field of nuclear fuel reprocessing. The activities are guided by the aims of the planned back end fuel cycle facility. They are performed in contact with the companies DWK, KEWA and GWK within the scope of the projects reprocessing and waste management and fast breeder development. The Institue consists of the following divisions: extraction chemistry and plant operation; process analyzing; chemical process and apparatus development; dissolver and waste gas treatment; process control and automation; organic analysis; basic research. (orig./RB) [de

  13. Report on research and development activities in 1983 of the Institut fuer Reaktorentwicklung

    International Nuclear Information System (INIS)

    1984-02-01

    The main points of investigations are the Fast Breeder Project (PSB), the Nuclear Fusion Project (PKF) and the Nuclear Safety Project (PNS). The contributions to the Fast Breeder Reactor Project comprise theoretical and experimental work on the dynamic behaviour of fast breeder reactors during operational and hypothetical incidents, investigations on consequences of local cooling incidents in the reactor core in consideration of possible damage propagation mechanisms, the detection of such events as well as the performance of risk-oriented analyses. As part of the Nuclear Fusion Project the Institute contributes to the evaluation of plant concepts, to the design and improvement of highly loaded components, to the development of handling techniques as well as to safety investigations. The work for the Project Nuclear Safety of lightwater reactors concern in particular analyses of containment structures under incident conditions, investigations on the fuel rod behaviour during incidents, as well as investigations on two-phase flows. The independent institutional research projects have a fundamental character and are oriented towards application, too. They concentrate on the special fields of applied computer science and continuum mechanics. (orig./GL) [de

  14. Report on research and development work 1981 of the Institut fuer Reaktorentwicklung

    International Nuclear Information System (INIS)

    1982-02-01

    The Institute for Reactor Development works chiefly on technical problems as a function of the development and safety evidence of nuclear installations. The tasks that are for a greater part performed together with other internal and external institutions, are both theoretical- and experimental-natured and concentrate mainly on problems out of the reactor safety. The works are in the main concentrated in the 'Fast Breeder Project' (PSB) and in the 'Nuclear Safety Project' (PNS). The PSB-contributions to design and safety of sodium-cooled breeding reactors comprise above all investigations on the thermohydraulic and neutronkinetic behaviour of the core as a result of incidents with very low probability to occur, as well as on the effects of local cooling failures in the reactor core in particular consideration of possible failure propagation mechanisms and of the detectability of such processes. The works in the field of safety of lightwater reactors concern in particular investigations on the dynamic load of component parts of reactor pressure vessels related with the HDR-blowdown-tests and containment structures, as well as investigations on the fuel rod behaviour in the loss of coolant incident. (orig./RW) [de

  15. Institut fuer Radiochemie: Results of R and D work in 1984

    International Nuclear Information System (INIS)

    1985-02-01

    The Radiochemistry Institute of KfK participates in the following projects: Reprocessing and waste treatment, fast breeder reactor, nuclear safety, safeguards, nuclear fusion. Other activities include research work on solids and materials, and in the field of water technology. The work accomplished in 1984 is explained in several contributions, the main topics being: Release and behaviour of fission products in sodium-cooled systems, analytic methods and in-line instrumentation within the framework of waste reprocessing techniques, Kr-85 separation from radioactive waste, fission product separation and tritium enrichment for waste disposal, fission product release during core meltdown, lithium silicates as fertile material for fusion reactors, water desolination with the CARIX process and other water purification methods. (RB) [de

  16. Results of research and development work in 1982 of the Institut fuer Technische Physik

    International Nuclear Information System (INIS)

    1983-02-01

    The works in the Institute for Technical Physics (ITP) concentrated in 1982 upon the application of high current superconductivity in the fields of energy engineering and fusion. Moreover, the magnet technology for use in other fields of research and technology is advanced. Fundamental investigations on cryogenics and superconductors as well as studies go along with the technical research program. The magnetic fields of stationary and quasi-stationary fusion reactors with magnetic confinement have to be produced by superconductivity. The aim of the magnet developments in the KfK is therefore to make available the technology of superconductivity for large-scale experiments in plasma physics and the later fusion reactors, which is performed in co-operation with industry as part of the European fusion program. (orig./GG) [de

  17. Report on research and development work 1982 of the Institut fuer Nukleare Entsorgungstechnik

    International Nuclear Information System (INIS)

    1983-02-01

    The R and D work carried out at the Institute of Nuclear Waste Processing during 1982 under the four sections Chemistry, Processing Technology, Final Storage, and Infrastructure and Analysis is reported here. Areas of emphasis were: 1) Development and demonstration of a technical process for embedding highly radioactive solutions of fission products in borosilicate glass blocks, 2) Study of the properties of original glass moulds produced in this process, 3) Solidification of low and medium-active waste concentrates in cement, 4) Separation of actinides and fission products from medium-active waste solutions, 5) Solidification of alpha-containing concentrates in a ceramic matrix and characterization of the products, 6) Demonstration of wet chemical oxidation of combustible wastes containing higher levels of Pu together with the recovery of Pu, 7) Investigation of the release of radionuclides from medium-active waste products by leaching, corrosion, and mechanical or thermal stress, 8) Studies on the development of long-term stable containers suitable for final storage of highly radioactive glass products in salt, 9) Studies on the storage of heat-generating waste in salt, 10) Studies on analytical safety assurance for final storage in geological formations. (orig./RB) [de

  18. Results of research and development work in 1982 of the Institut fuer Angewandte Kernphysik

    International Nuclear Information System (INIS)

    1983-02-01

    The Institute for Applied Nuclear Physics is presently pursuing basic research-and application-oriented work in the two fields of nuclear solid-state physics and nuclear physics. In the field of solid-state physics the experimental and theoretical work has the purpose of better understanding the microscopic and macroscopic properties of certain solids. At present superconductors with high transition points, amorphous substances and alloys of transition metals and rare earths are investigated with special intensity. The work in nuclear physics concerns on the one hand, the investigation of the local and impulse distribution of nucleous or nucleon groups in nuclei. For this purpose nuclear reactions are investigated at the cyclotron in Karlsruhe and laser-spectroscopic methods are applied to small amounts of radioactive isotope substances. On the other hand, neutron capture cross-sections are measured which are important to understand the element assembly in stars. For the Core Material Control Project one group is developing measuring instruments by means of which the isotope composition and the concentration of fission products can be determined very precisely. (orig./RW) [de

  19. Fraunhofer Institut fuer Molekularbiologie und Angewandte Oekologie (IME). Annual report 2014/2015

    International Nuclear Information System (INIS)

    2015-01-01

    The Annual report 2014/2015 of the Fraunhofer Institute for molecular biology and applied ecology includes the following contributions: (A) Molecular Biology: TheraSECOURE - Novel immunotherapeutics for targeted cancer therapy; ''MultiNaBel ''- Automated diagnosis of leukemia; Breeding potato for optimized specialty starches; NGS-based zygosity detection in transgenic maize; High-throughput screen ing system for cellulases based on microfluidic devices; Filter aids reduce production costs for plant-derived biopharmaceuticals; Transient expression of recombinant proteins in packed plant cells; ERA-NET Biodiversa EXOTIC project on the invasive harlequin ladybird; AIM-Biotech supported by the Fraunhofer-Max Planck Cooperation program; Metabolic control analysis of the MEP pathway; Metabolic engineering of Clostridium spp. by genomic integration; The Fraunhofer Future Foundation malaria project; Autoantibodies to type 11 collagen as biomarkers of rheumatoid arthritis; Development of a new drug for the treatment of sepsis; Databionic drug research; Structure-based drug design; Neu 2 : competence consortium for multiple sclerosis drug development; Natural compounds from marine fungi for the treatment of cancer; FCR Center for Systems Biotechnology (CSB): Two selected projects; Development and implementation of a plant-derived vaccine against yellow fever. (B) Applied Ecology: Comparison and improvement of laboratory water/sediment test systems; Inter-laboratory comparison of Hyalella Azteca exposure tests lasting 10-42 days; Substance- and matrix-related environmental monitoring of biocides; GERDA-geobased runoff, erosion and drainage risk assessment; The minimum detectable difference and reliability of mesocosm studies; Mechanistic effect models for the ecological risk assessment of pesticides; Molecular biology test for the online analysis of spontaneously-fermented wines; Coupling two test systems to determine the effect of wastewater

  20. Bundesforschungsanstalt fuer Ernaehrung. Annual report

    International Nuclear Information System (INIS)

    1996-01-01

    The 1994 annual report of the Bundesforschungsanstalt fuer Ernaehrung describes the tasks, structure and staff and fields of research of this institution and its scientific cooperation with other institutions. The report is supplemented by an alphabetic list off all publications. The BFE specializes in research on nutritional, food and ecotrophological sciences. (vhe) [de

  1. Annual report of the working group 'fuel pin and fuel element mechanics' of the Institut fuer Reaktortechnik (IRT) of the Technische Hochschule Darmstadt for the Fast Breeder Project

    International Nuclear Information System (INIS)

    Fabian, H.; Humbach, W.; Lassmann, K.; Mueller, J.J.; Preusser, T.; Schmelz, K.

    1978-09-01

    This report comprises six single lectures given at an information meeting organized by the Institut fuer Reaktortechnik der Technischen Hochschule Darmstadt (IRT) in Darmstadt on April 24, 1978. The lectures are an account of work performed at IRT on the mechanics of fuel pins and fuel elements and supported by the Fast Breeder Project (PSB) of KfK. These activities can be broken down into studies of the integral fuel pin (URANUS computer code) and into multidimensional studies of the fuel pin using the finite-element method (FINEL and ZIDRIG computer codes). Moreover, a report is presented of the status of the test facility for simulation of out-of-pile cladding tube loads and of the IRT project on the simulation and analysis of radiation damage. (orig./GL) [de

  2. Progress report within the series of GRS-F progress reports on reactor safety, sponsored by the Federal Ministry of Economics and Labour. Period: 1 July - 31 December 2003; Berichte ueber vom Bundesministerium fuer Wirtschaft und Arbeit gefoerderte Forschungsvorhaben auf dem Gebiet der Reaktorsicherheit. Berichtszeitraum: 01. Juli - 31. Dezember 2003

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2004-07-01

    The Gesellschaft fuer Anlagen- und Reaktorsicherheit (GRS) mbH, by order of the BMWi, continuously issues information on the status of the investigations into the safety of nuclear power plants by publishing semi-annual and annual progress reports within the series of GRS-F-Fortschrittsberichte (GRS-F-Progress Reports). Each progress report represents a compilation of individual reports about the objectives, work performed, results achieved, next steps of the work etc. The individual reports are prepared in a standard form by the research organisations themselves as documentation of their progress in work and are published by the Research Management Division of GRS within the framework of general information on the progress in reactor safety research. The compilation of the reports is classified according to general topics related to reactor safety research. Further, use is made of the classification system ''Joint Safety Research Index'' of the CEC (commission of the european communities). The reports are arranged in sequence of their project numbers. (orig.) [German] Die Gesellschaft fuer Anlagen- und Reaktorsicherheit (GRS) mbH informiert im Auftrag des BMWi halbjaehrlich und jaehrlich ueber den Stand der Untersuchungen zur Sicherheit von Kernreaktoren in den Fortschrittsberichten der GRS-F-Berichtsreihe. Jeder Fortschrittsbericht stellt eine Sammlung von Einzelberichten ueber Zielsetzung, durchgefuehrte Arbeiten, erzielte Ergebnisse, geplante Weiterarbeit etc. dar, die von den Forschungsstellen selbst als Dokumentation ihres Arbeitsfortschritts in einheitlicher Form erstellt und von der Forschungsbetreuung (FB) in der GRS im Rahmen der allgemeinen Information ueber die Fortschritte von Untersuchungen zur Reaktorsicherheit herausgegeben werden. Die inhaltliche Gliederung der Berichtssammlung erfolgt durch sachliche Zuordnung der Vorhaben zu uebergeordneten Themenbereichen der Reaktorsicherheitsforschung, ferner nach dem Klassifikationsschema

  3. Adaptive real-time models of vehicle dynamics; Adaptive Echtzeitmodelle fuer die Kraftfahrzeugdynamik

    Energy Technology Data Exchange (ETDEWEB)

    Halfmann, C.; Holzmann, H.; Isermann, R. [Technische Univ. Darmstadt (Germany). Inst. fuer Automatisierungstechnik; Hamann, C.D.; Simm, N. [Opel (A.) AG, Ruesselsheim (Germany). Gruppe Chassis und Fahrerassistenzsysteme

    1999-12-01

    The application of modern simulation tools offering additional support during the vehicle development process is accepted to a large extent by most car manufacturers. Just like new model-based control strategies, these simulation investigations require very accurate - and thus very complex - models of vehicle dynamics, which can be processed in real time. As an example of such a vehicle model, this article describes a real-time vehicle simulation model which was developed at the Institute of Automatic Control at Darmstadt University of Technology, in co-operation with the ITDC of the Adam OPEL AG. By applying modern adaptation techniques, this vehicle model is able to calculate onboard the important variables describing the actual driving state even if the environmental conditions change. (orig.) [German] Der Einsatz von Simulationswerkzeugen zur Unterstuetzung der Fahrzeugentwicklung hat sich bei den meisten Automobilherstellern weitgehend durchgesetzt. Ebenso wie neuartige modellbasierte Regelstrategien verlangen diese Simulationsuntersuchungen nach immer exakteren - und damit komplexeren - fahrdynamischen Modellen, die in Echtzeit ausgewertet werden. Als Beispiel fuer ein solches Gesamtfahrzeugmodell beschreibt dieser Beitrag ein echtzeitfaehiges Modell fuer die Bewegung des Fahrzeugs um alle drei Hauptachsen, das am Institut fuer Automatisierungstechnik der TU Darmstadt in Kooperation mit dem Internationalen Technischen Entwicklungszentrum (ITEZ) der Adam Opel AG entwickelt wurde. Es ist durch den Einsatz von Adaptionsmethoden in der Lage, wichtige fahrdynamische Zustandsgroessen im Fahrzeug auch unter veraenderlichen Umgebungsbedingungen zu ermitteln. (orig.)

  4. Pleading for a rational energy policy; Fuer eine aufgeklaerte Energiepolitik

    Energy Technology Data Exchange (ETDEWEB)

    Tillessen, U. [Colenco Power Consulting AG, Baden (Switzerland)

    1999-09-01

    To the argument that the long half-life values of the most important products of fission represent an unacceptable burden for coming generations, the author retorts that this is an emotion-directed pseudo-argument. Anyone who ventures into deep geological strata, such as the final storage area Konrad, should also count in terms of geological periods. From this point of view, a million years - however difficult to imagine for the average human being - is not a very long time. Toxic chemical waste is accepted by society, even if the toxicity should remain for all time. The article is an extract from a lecture given by the author to the Franco-German Society for Science and Technology. (orig.) [German] Dem Argument, die langen Halbwertszeiten der wichtigsten Spaltprodukte beinhalte eine nicht zu verantwortende Belastung fuer die nachfolgenden Generationen, haelt Autor Tillessen entgegen, dass dies ein auf Emotionen abzielendes Scheinargument sei. Wer sich, wie zum Beispiel beim Endlager Konrad, in tiefe geologische Schichten begebe, duerfe auch in geologischen Zeitraeumen rechnen. Und da sei eine Million Jahre, so wenig vorstellbar das auch fuer den Durchschnitts-Menschen sei, eben keine allzulange Zeit. Chemische Giftabfaelle wuerden von der Gesellschaft akzeptiert, obwohl ihre Toxitaet ewig waehre. Der Beitrag des Autors ist ein Auszug aus einer Rede, die er vor der Deutsch-Franzoesischen Gesellschaft fuer Wissenschaft und Technik gehalten hat. Aus diesem Anlass hatte Tillessen vorgeschlagen, ein von einer Stiftung getragenes deutsch-franzoesisches Institut zu gruenden, dessen Aufgabe es sein soll, mit mehr Rationalitaet die von teutonischer Romantik dominierte Technikdiskussion zu versachlichen. (orig.)

  5. Germany must become a model for other countries. ``Sustainable consumption`` and its importance against the background of the Agenda 21; Deutschland muss fuer die anderen Laender Vorbild werden. `Nachhaltiger Konsum` und dessen Stellenwert vor dem Hintergrund der Agenda 21

    Energy Technology Data Exchange (ETDEWEB)

    Schafhausen, F. [Bundesministerium fuer Umwelt, Naturschutz und Reaktorsicherheit, Bonn (Germany)

    1998-04-01

    The ``Agenda 21`` was decided at Rio de Janeiro in June 1992. It is to provide a guideline for political action of all parties concerned in the 21st century. Its key concept, ``sustainable develoment``, is a multi-faceted concept which attempts to coordinate ecological, economic and social needs on a medium to long-term basis. Changes in consumption patterns are of central importance. The article goes into detail about these and also about the problems caused by energy and power supply as it is today. (orig.) [Deutsch] Im Juni 1992 wurde in Rio de Janeiro die sogenannten `Agenda 21` als Leitfaden fuer das im 21. Jahrhundert erforderliche Handeln aller Akteure verabschiedet. Im Zentrum dieses Aktionsprogramms steht der schillernde Begriff `sustainable development`. In vierzig Kapiteln, die sich mit allen gesellschaftlichen Gruppen und allen Problemfeldern moderner Gesellschaften auseinandersetzen, wird versucht, `nachhaltige Entwicklung` zu definieren und Wege aufzuzeigen, wie oekologische, oekonomische und gesellschaftliche Anliegen mittel- bis langfristig auf einen Nenner gebracht werden koennen. Von zentraler Bedeutung ist dabei die Frage der Veraenderung der Konsumgewohnheiten. Mit diesem Thema wird ein grosser Teil der in Rio alle Verhandlungen bestimmenden Anliegen angesprochen. Es verwundert nicht, dass auch in diesem Zusammenhang die von der heutigen Energieversorgung verursachten Probleme im Vordergrund stehen. (orig.)

  6. Announcement of the agreement between the Federal Ministry of Education, Science, Research and Technology of the Federal Republic of Germany and the Department of Energy of the United States about the exchange of information in the area of energy. As of November 30, 1994; Bekanntmachung der Vereinbarung zwischen dem Bundesministerium fuer Bildung, Wissenschaft, Forschung und Technologie der Bundesrepublik Deutschland und dem Department of Energy der Vereinigten Staaten ueber den Austausch von Informationen auf dem Energiegebiet. Vom 30. November 1994

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-01-11

    The contracting parties establish under this agreement for the benefit of both sides and as support for their research and development work in the field of energy and exchange of information in the area of energy. This exchange includes publicly available scientific-technical information, concluded energy research and development projects, current energy research and development projects, relevant facts and figures as well as research in the area of information technology. (orig./HP) [Deutsch] Die Vertragsparteien richten im Rahmen dieser Vereinbarung zum beiderseitigen Nutzen und zur Ergaenzung ihrer Forschungs- und Entwicklungsarbeiten auf dem Energiesektor einen Austausch von Informationen auf dem Energiegebiet ein. Dieser Austausch umfasst oeffentlich zugaengliche wissenschaftlich-technische Informationen ueber abgeschlossene Energieforschungs- und -entwicklungsvorhaben, laufende Energieforschungs- und -entwicklungsvorhaben, einschlaegige Fakten und Zahlen sowie informationstechnische Forschung. (orig./HP)

  7. Passive houses: houses without heatings. Experience with the first demonstration building at Darmstadt, and prospects for low-cost passive houses; Passivhaeuser: Gebaeude ohne Heizung. Erfahrungen mit dem ersten Demonstrationsgebaeude in Darmstadt und Perspektiven fuer kostenguenstige Passivhaeuser

    Energy Technology Data Exchange (ETDEWEB)

    Feist, W. [Inst. Wohnen und Umwelt, Darmstadt (Germany)

    1998-12-31

    `Passive` houses, i.e. houses without active heating, are extremely energy-optimized houses: thanks to their efficient thermal protection, their heat demand falls below the threshold requiring a separate space heat distribution system (15 kWh/(m{sup 2}a)). Passive houses will account for an increasing proportion of new buildings already during the next years. Houses with zero thermal energy demand involve notably higher construction effort but do not contribute essentially more to the mitigation of environmental pollution. (orig.) [Deutsch] Das Passivhaus ist ein extremes Niedrigenergiehaus, bei welchem durch guten Waermeschutz gerade die Schwelle unterschritten wird, bei der kein separates Heizwaermeverteilsystem mehr benoetigt wird (15 kWh/(m{sup 2}a)). Passivhaeuser werden schon in den naechsten Jahren einen zunehmenden Anteil an den Neubauten haben. Nullheizenergiehaeuser fuehren gegenueber dem Passivhaus zu spuerbar hoeherem baulichen Aufwand, ohne die Umwelt bedeutend mehr zu entlasten. (orig.)

  8. Report on results of research and development work carried out in 1979 by the Institut fuer Neutronenphysik und Reaktortechnik

    International Nuclear Information System (INIS)

    1980-02-01

    The activities of the INR concentrate on problems in nuclear technology, especially on problems encountered in the development of sodium-cooled fast reactors. Most of the work is carried out under the roof of projects in cooperation with other institutes or industrial research groups. The studies performed within the fast-breeder project (PSB) relate to reactor physics, design data and safety problems of fast reactors. The environmental impacts of nuclear reactors in case of accidents are investigated by the Institute within the framework of the nuclear safety project (PNS), whereas the problems to be studied for the reprocessing project (PWA) relate to the activity inventary and to instrument development. Another main field of interest is nuclear safeguards, the Institute being concerned with the isotope correlation technique and its application. For the fusion reactor technology project, the research work carried out by the Institute deals with fusion techniques using inertial confinement. (orig./HP) [de

  9. Detailed data set of a large administration building as a validation model for DIN V18599-software; Umfangreicher Validierungsdatensatz eines grossen Verwaltungsgebaeudes fuer Software zur DIN V 18599

    Energy Technology Data Exchange (ETDEWEB)

    Hoettges, Kirsten; Woessner, Simon; de Boer, Jan; Erhorn, Hans [Fraunhofer-Institut fuer Bauphysik (IBP), Abt. Energiesysteme, Kassel (Germany); Fraunhofer-Institut fuer Bauphysik (IBP), Stuttgart (Germany)

    2009-04-15

    The calculation method of DIN V 18599 represents a very complex model for the estimation of the energy efficiency of buildings. The method is used for certificates too, thus, the number of users is quite high. This fact and the complexity of the method causes high demands on the related software products. Most of the end user software tools work with the calculation engine ibp18599kernel developed by Fraunhofer-Institut for Building Physics. There is a continuous quality control for both, the kernel and the user interfaces, i.e. the end user software. This paper gives an overview of the process of quality control as well as a documentation of a validation model used within this process, i.e. a complex administration building as a sample. (Abstract Copyright [2009], Wiley Periodicals, Inc.) [German] Mit dem Berechnungsverfahren der DIN V 18599 liegt ein umfassendes Berechnungsmodell fuer die energetische Bewertung von Gebaeuden vor. Der grosse Umfang der Verfahren stellt auch an die softwaretechnischen Umsetzungen fuer die Planungspraxis hohe Anforderungen. Das Fraunhofer-Institut fuer Bauphysik hat hierzu den Rechenkern ibp18599kernel entwickelt, der zwischenzeit-lich von zahlreichen Softwarehaeusern fuer Endanwendungsprogramme zur energetischen Bewertung und Erstellung von Energieausweisen eingesetzt wird. Dieser ''Rechenmotor'' unterliegt einer steten Qualitaetskontrolle zur Sicherstellung der Berechnungsgenauigkeit. Der vorliegende Aufsatz stellt den Prozess der Qualitaetssicherung anhand eines neuen Validierungsbeispiels in Form eines komplexen Verwaltungsgebaeudes vor. Die Fallstudie kann auch zur Validierung anderer Berechnungssysteme, die nicht auf dem Rechenkern basieren, genutzt werden. (Abstract Copyright [2009], Wiley Periodicals, Inc.)

  10. Review of results of research and development work carried out by the Institut fuer Technische Physik in 1983

    International Nuclear Information System (INIS)

    1984-02-01

    At the Institute for Technical Physics (ITP), the emphasis of the studies lies with the application of full-load superconductivity, the main tasks being part of the nuclear fusion project. Additionally, magnet technology for applications in other fields of research and development is advanced. The technical research programme goes together with fundamental research in the fields of cryogenics and superconductors as well as with related studies. (orig./RW) [de

  11. 25 Jahre - Institut fuer Geodaesie, Teil 2: Forschungsarbeiten und Veroeffentlichungen (25 Years - Institute of Geodesy, Part 2: Research Areas and Publications)

    Science.gov (United States)

    2000-01-01

    Messungen mit Nivellements, Zenitdistanzmessungen oder astrono - mischen Azimut, Ulngen- und Breitenbestimmiungen liefert Informationen Ober die geometri...Using Geometric Hilfe des GPS in Ruanda. In: Institut ffir Geod1.sie Levelling, Trigonometric Heighting and Astrono - (Hrsg.): Das Global Positioning

  12. Armouring facility? Nuclear-weapon and reactor reseach at the Kaiser-Wilhelm Institute for Physics; Eine Waffenschmiede? Kernwaffen- und Reaktorforschung am Kaiser-Wilhelm-Institut fuer Physik

    Energy Technology Data Exchange (ETDEWEB)

    Hachtmann, R. (ed.); Walker, M.

    2005-07-01

    The Kaiser Wilhelm Institute for Physics is best known as the place where Werner Heisenberg worked on nuclear weapons for Hitler. Although this is essentially true, there is more to the story. At the start of World War II this institute was taken over by the German Army Ordnance to be the central, but not exclusive site for a research project into the economic and military applications of nuclear fission. The Army physicist Kurt Diebner was installed in the institute as its commissarial director. Heisenberg was affiliated with the institute as an advisor at first, and became the director in 1942. Heisenberg and his colleagues, including in particular Karl-Heinz Hoecker, Carl Friedrich von Weizsaecker, and Karl Wirtz, worked on nuclear reactors and isotope separation with the clear knowledge that these were two different paths to atomic bombs [Atombomben]. However, they were clearly ambivalent about what they were doing. New documents recently returned from Russian archives shed new light on this work and the scientists' motivations. (orig.)

  13. kawaihae_dem.grd

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NGDC builds and distributes high-resolution, coastal digital elevation models (DEMs) that integrate ocean bathymetry and land topography to support NOAA's mission to...

  14. Brake force estimation for electromechanical vehicle brakes; Bremskraft-Rekonstruktion fuer elektromechanische Fahrzeugbremsen

    Energy Technology Data Exchange (ETDEWEB)

    Schwarz, R. [Continental Teves (Germany)

    1999-06-01

    Due to the increasing safety and comfort demands of the customer, the functionality of modern brake systems has grown continuously in the last years. However, implementation of the extended functionality in conventional brake hydraulics makes active electronic intervention necessary and therefore requires a lot of technical effort. In recent years the automotive supplier industry has started to develop brake systems which have electromechanical brake actuators generating the brake forces at the individual wheels. Electromechanically actuated wheel brakes need to be operated in a closed control loop. This paper introduces a new method to reconstruct the needed feedback value brake force from easy to measure signals. (orig.) [Deutsch] Aufgrund des gestiegenen Sicherheits- und Komfortbewusstseins der Fahrzeugkaeufer ist die Funktionsvielfalt moderner Bremssysteme in den letzten Jahren staendig gewachsen. Die Umsetzung der erweiterten Funktionalitaet mittels konventioneller Bremsenhydraulik ist jedoch durch den elektronischen, aktiven Eingriff sehr aufwendig. In den letzten Jahren hat daher die Automobilzulieferindustrie begonnen, Bremssysteme zu entwickeln, bei denen die Bremskraft an den einzelnen Raedern von elektromechanischen Bremsaktuatoren aufgebracht wird. Elektromechanisch betaetigte Radbremsen muessen im geschlossenen Regelkreis betrieben werden. Der vorliegende Beitrag, der im Rahmen einer Forschungskooperation zwischen Continental Teves und dem Institut fuer Automatisierungstechnik der TU Darmstadt entstand stellt ein Verfahren vor, mit dem die dafuer benoetigte Rueckfuehrungsgroesse `Bremskraft` aus einfach messbaren Signalen rekonstruiert werden kann. (orig.)

  15. Coastal Digital Elevation Models (DEMs)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Digital elevation models (DEMs) of U.S. and other coasts that typically integrate ocean bathymetry and land topography. The DEMs support NOAA's mission to understand...

  16. Shaft barriers for underground waste repositories in abandoned salt mines. Preparatory project. Vol. 2. Annex; Schachtverschluesse fuer untertaegige Deponien in Salzbergwerken. Vorprojekt. Bd. 2. Anhang

    Energy Technology Data Exchange (ETDEWEB)

    Schmidt, M W [GSF - Forschungszentrum fuer Umwelt und Gesundheit, Remlingen (Germany). Forschungsbergwerk Asse; Fruth, R [GSF - Forschungszentrum fuer Umwelt und Gesundheit, Remlingen (Germany). Forschungsbergwerk Asse; Stockmann, N [GSF - Forschungszentrum fuer Umwelt und Gesundheit, Remlingen (Germany). Forschungsbergwerk Asse; Birthler, H [Gesellschaft fuer Anlagen- und Reaktorsicherheit mbH Greece, Braunschweig (Germany). Fachbereich Endlagersicherheitsforschung; Boese, B [Gesellschaft fuer Anlagen- und Reaktorsicherheit mbH Greece, Braunschweig (Germany). Fachbereich Endlagersicherheitsforschung; Storck, R [Gesellschaft fuer Anlagen- und Reaktorsicherheit mbH Greece, Braunschweig (Germany). Fachbereich Endlagersicherheitsforschung; Sitz, P [Technische Univ. Bergakademie Freiberg (Germany). Inst. fuer Bergbau; Krausse, A [Technische Univ. Bergakademie Freiberg (Germany). Inst. fuer Bergbau; Eulenberger, K H [Technische Univ. Bergakademie Freiberg (Germany). Inst. fuer Bergbau; Schleinig, J P [Technische Univ. Bergakademie Freiberg (Germany). Inst. fuer Bergbau; Duddeck, H [Technische Univ. Braunschweig (Germany). Inst. fuer Statik; Ahrens, H [Technische Univ. Braunschweig (Germany). Inst. fuer Statik; Menzel, W [IfG Inst. fuer Gebirgsmechanik GmbH, Leipzig (Germany); Salzer, K [IfG Inst. fuer Gebirgsmechanik GmbH, Leipzig (Germany); Minkley, W [IfG Inst. fuer Gebirgsmechanik GmbH, Leipzig (Germany); Busche, H [Kali und Salz AG, Kassel (Germany); Lindloff, U [Kali und Salz AG, Kassel (Germany); Gierenz, S [Kali und Salz AG, Kassel (Germany)

    1996-12-31

    Analyse der bisher realisierten bzw. konzipierten Verschlussmassnahmen von Schaechten des Kali- und Steinsalzbergbaues der gegenwaertige Stand von Wissenschaft und Technik abgeleitet. Auf der Grundlage der vorhandenen gesetzlichen Regelwerke und des mit zu beruecksichtigenden Kenntnisstandes zu Verschlusssystemen fuer UTD in bisher durchgefuehrten Planfeststellungs- und Genehmigungsverfahren sowie des Standes von Wissenschaft und Technik wurden Konzepte fuer die technischen Loesungen von Verschlusssystemen fuer Schaechte entwickelt. Der sich daraus ableitende Forschungsbedarf zu den einzelnen Elementen eines Schachtverschlusses, insbesondere unter dem Aspekt der Materialauswahl und der technischen Realisierbarkeit, wird ausgewiesen. Im Hinblick auf den Nachweis der langzeitlichen Funktionsfaehigkeit von Schachtverschluessen werden die vorhandenen Moeglichkeiten mathematisch-numerischer geotechnischer und hydrogeologischer Berechnungsmodelle dargestellt. Dabei besteht ein unmittelbarer Forschungsbedarf. Die Verfasser sind der Auffassung, dass zur Abarbeitung des ermittelten Forschungsbedarfes 1. Labor - und Technikumsversuche zur Wirksamkeit verschiedener Dichtmaterialien und Widerlagerbaustoffe sowie 2. ein In-situ-Grossversuch zur Klaerung der Einsatzmoeglichkeiten setzungsarmer Schottersaeulen und Einbautechnologien der Verschlussbauwerke erforderlich sind. Fuer die Laboruntersuchungen stehen die labortechnischen Einrichtungen des GSF-Forschungsbergwerkes Asse, der Bergakademie Freiberg und des Institutes fuer Gebirgsmechanik, Leipzig, sowie fuer die Technikumsversuche das Forschungsbergwerk Asse zur Verfuegung. Als Versuchsort fuer den In-situ-Grossversuch bietet die Kali und Salz Beteiligungs AG den Schacht Salzdetfurth II an. (orig.)

  17. Shaft barriers for underground waste repositories in abandoned salt mines. Preparatory project. Vol. 2. Annex; Schachtverschluesse fuer untertaegige Deponien in Salzbergwerken. Vorprojekt. Bd. 2. Anhang

    Energy Technology Data Exchange (ETDEWEB)

    Schmidt, M.W. [GSF - Forschungszentrum fuer Umwelt und Gesundheit, Remlingen (Germany). Forschungsbergwerk Asse; Fruth, R. [GSF - Forschungszentrum fuer Umwelt und Gesundheit, Remlingen (Germany). Forschungsbergwerk Asse; Stockmann, N. [GSF - Forschungszentrum fuer Umwelt und Gesundheit, Remlingen (Germany). Forschungsbergwerk Asse; Birthler, H. [Gesellschaft fuer Anlagen- und Reaktorsicherheit mbH Greece, Braunschweig (Germany). Fachbereich Endlagersicherheitsforschung; Boese, B. [Gesellschaft fuer Anlagen- und Reaktorsicherheit mbH Greece, Braunschweig (Germany). Fachbereich Endlagersicherheitsforschung; Storck, R. [Gesellschaft fuer Anlagen- und Reaktorsicherheit mbH Greece, Braunschweig (Germany). Fachbereich Endlagersicherheitsforschung; Sitz, P. [Technische Univ. Bergakademie Freiberg (Germany). Inst. fuer Bergbau; Krausse, A. [Technische Univ. Bergakademie Freiberg (Germany). Inst. fuer Bergbau; Eulenberger, K.H. [Technische Univ. Bergakademie Freiberg (Germany). Inst. fuer Bergbau; Schleinig, J.P. [Technische Univ. Bergakademie Freiberg (Germany). Inst. fuer Bergbau; Duddeck, H. [Technische Univ. Braunschweig (Germany). Inst. fuer Statik; Ahrens, H. [Technische Univ. Braunschweig (Germany). Inst. fuer Statik; Menzel, W. [IfG Inst. fuer Gebirgsmechanik GmbH, Leipzig (Germany); Salzer, K. [IfG Inst. fuer Gebirgsmechanik GmbH, Leipzig (Germany); Minkley, W. [IfG Inst. fuer Gebirgsmechanik GmbH, Leipzig (Germany); Busche, H. [Kali und Salz AG, Kassel (Germany); Lindloff, U. [Kali und Salz AG, Kassel (Germany); Gierenz, S. [Kali und Salz AG, Kassel (Germany)

    1995-12-31

    Analyse der bisher realisierten bzw. konzipierten Verschlussmassnahmen von Schaechten des Kali- und Steinsalzbergbaues der gegenwaertige Stand von Wissenschaft und Technik abgeleitet. Auf der Grundlage der vorhandenen gesetzlichen Regelwerke und des mit zu beruecksichtigenden Kenntnisstandes zu Verschlusssystemen fuer UTD in bisher durchgefuehrten Planfeststellungs- und Genehmigungsverfahren sowie des Standes von Wissenschaft und Technik wurden Konzepte fuer die technischen Loesungen von Verschlusssystemen fuer Schaechte entwickelt. Der sich daraus ableitende Forschungsbedarf zu den einzelnen Elementen eines Schachtverschlusses, insbesondere unter dem Aspekt der Materialauswahl und der technischen Realisierbarkeit, wird ausgewiesen. Im Hinblick auf den Nachweis der langzeitlichen Funktionsfaehigkeit von Schachtverschluessen werden die vorhandenen Moeglichkeiten mathematisch-numerischer geotechnischer und hydrogeologischer Berechnungsmodelle dargestellt. Dabei besteht ein unmittelbarer Forschungsbedarf. Die Verfasser sind der Auffassung, dass zur Abarbeitung des ermittelten Forschungsbedarfes 1. Labor - und Technikumsversuche zur Wirksamkeit verschiedener Dichtmaterialien und Widerlagerbaustoffe sowie 2. ein In-situ-Grossversuch zur Klaerung der Einsatzmoeglichkeiten setzungsarmer Schottersaeulen und Einbautechnologien der Verschlussbauwerke erforderlich sind. Fuer die Laboruntersuchungen stehen die labortechnischen Einrichtungen des GSF-Forschungsbergwerkes Asse, der Bergakademie Freiberg und des Institutes fuer Gebirgsmechanik, Leipzig, sowie fuer die Technikumsversuche das Forschungsbergwerk Asse zur Verfuegung. Als Versuchsort fuer den In-situ-Grossversuch bietet die Kali und Salz Beteiligungs AG den Schacht Salzdetfurth II an. (orig.)

  18. Research for the thermal change. Contributions; Forschung fuer die Waermewende. Beitraege

    Energy Technology Data Exchange (ETDEWEB)

    Szczepanski, Petra; Wunschick, Franziska; Martin, Niklas (comps.)

    2016-05-15

    The energy transition in the heating sector is not a sure-fire success and it is too slow. This is alarming since the heating / cooling sector is responsible for more than half of the final energy demand. That the ''thermal change'' has accelerated hardly despite many efforts by politics, industry and research in recent years, is the reason for the scientists the FVEE institutes to examine the perspectives of renewable energy and the need to increase efficiency in the heating sector systematically. therefore FVEE-2015 Annual Meeting, is entitled ''Research for the thermal change''. The contributions of this conference proceedings present the latest research results and show ways to implement the heat change technically, economically and politically. They are dedicated to the drivers, but also the barriers of heat change. The authors report on innovative projects to provide buildings with heat from geothermal energy, biomass and solar thermal energy. Several contributions are dedicated to the application of efficient components, such as thermal insulation, thermal storage and heat pumps. [German] Die Energiewende im Waermesektor ist kein Selbstlaeufer und kommt zu langsam voran. Das ist alarmierend, da der Waerme-/Kaeltesektor fuer ueber die Haelfte des Endenergiebedarfs verantwortlich ist. Dass die ''Waermewende'' trotz vielerlei Bemuehungen von Politik, Industrie und Forschung in den letzten Jahren kaum Fahrt aufgenommen hat, ist Anlass fuer die Wissenschaftlerinnen und Wissenschaftler der FVEE-Institute, die Perspektiven der erneuerbaren Energien und der notwendigen Effizienzsteigerung im Waermesektor systematisch zu untersuchen. Die FVEE-Jahrestagung 2015 steht deshalb unter dem Leitthema ''Forschung fuer die Waermewende''. Die Beitraege dieses Tagungsbandes praesentieren aktuelle Forschungsergebnisse und zeigen Wege auf, um die Waermewende technisch, wirtschaftlich und politisch

  19. Threshold limit values, test values and sanitation values for soil sanitation; Richt-, Pruef- und Sanierungswerte fuer den Bodenschutz

    Energy Technology Data Exchange (ETDEWEB)

    Karlaganis, G.; Dettwiler, J. [Bundesamt fuer Umwelt, Wald und Landschaft (BUWAL), Bern (Switzerland). Abt. Stoffe, Boden, Biotechnologie

    1998-09-01

    Soils, the basis for human, plant and animal life, are exposed to quantitative and qualitative deterioration. Quantitative deterioration refers to paving of ground but also to erosion and soil destruction. There are new regulations for physical protection of soil which refer to soil erosion, compacting and handling of soil during building construction. (orig.) [Deutsch] Boden als natuerliche Lebensgrundlage fuer Mensch, Tiere und Pflanzen ist quantitativen und qualitativen Beeintraechtigungen ausgesetzt. Als quantitative Beeintraechtigung gilt jede Art von Verminderungen der Boeden durch Bauten und Anlagen, aber auch durch Erosion oder Bodenschwund. Erlassen worden sind nun neue Bestimmungen fuer drei Bereiche des physikalischen Bodenschutzes, naemlich fuer die Bodenerosion, die Bodenverdichtung und fuer den Umgang mit dem Boden vor allem beim Bauen. Die Verordnung vom 1. Juli 1998 ueber Belastungen des Bodens (VBBo`98) erhaelt neu drei Arten von Beurteilungs- bzw. Massnahmewerten, naemlich Richtwerte, Sanierungswerte und Pruefwerte. (orig./ABI)

  20. Chair in mechanical equipment in the mining industry and geotechnics at Clausthal Technological University; Professur fuer maschinelle Betriebsmittel in Bergbau und Geotechnik an der TU Clausthal

    Energy Technology Data Exchange (ETDEWEB)

    Langefeld, O.; Bergmann, O. [Technische Univ. Clausthal, Clausthal-Zellerfeld (Germany). Inst. fuer Bergbau

    2002-10-10

    The aim of this chair at the Institute for Mining at Clausthal Technological University is to familiarise the future engineer with the state of the art in the field of mechanical equipment. The main emphasis of the teaching is in particular the description of coal-mining and roadheading machines as well as conveying and storage technology. In the field of research basic investigations are currently being conducted on flexible bulk material containers, on determination of heat characteristics of insulating and construction materials as well as development of direct methanol fuel cells. (orig.) [German] Den zukuenftigen Ingenieur mit dem Stand der Technik im Bereich der maschinellen Betriebsmittel vertraut zu machen, ist das Ziel dieser Professur des Instituts fuer Bergbau an der TU Clausthal. Schwerpunkte der Lehre sind insbesondere die Darstellung von Gewinnungs- und Vortriebsmaschinen sowie die Foerder- und Lagertechnik. Auf dem Gebiet der Forschung werden zur Zeit Grundlagenuntersuchungen an flexiblem Schuettgutbehaeltern, an der Ermittlung waermetechnischer Kennwerte von Isolier- und Baustoffen sowie die Entwicklung von Direkten Methanolbrennstoffzellen betrieben. (orig.)

  1. Coastal DEMs with Cross-Track Interferometry

    NARCIS (Netherlands)

    Greidanus, H.S.F.; Huising, E.J.; Platschorre, Y.; Bree, R.J.P. van; Halsema, D. van; Vaessen, E.M.J.

    1999-01-01

    Digital elevation models (DEMs) are produced from airborne radar cross-track interferometric measurements. Radar DEMs recorded from perpendicular orientations are intercompared, and compared to DEMs derived from airborne laser altimetry

  2. Qualification of the nuclear reactor core model DYN3D coupled to the thermohydraulic system code ATHLET, applied as an advanced tool for accident analysis of VVER-type reactors. Final report; Qualifizierung des Kernmodells DYN3D im Komplex mit dem Stoerfallcode ATHLET als fortgeschrittenes Werkzeug fuer die Stoerfallanalyse von WWER-Reaktoren. T. 1. Abschlussbericht

    Energy Technology Data Exchange (ETDEWEB)

    Grundmann, U.; Kliem, S.; Krepper, E.; Mittag, S; Rohde, U.; Schaefer, F.; Seidel, A.

    1998-03-01

    The nuclear reactor core model DYN3D with 3D neutron kinetics has been coupled to the thermohydraulic system code ATHLET. In the report, activities on qualification of the coupled code complex ATHLET-DYN3D as a validated tool for the accident analysis of russian VVER type reactors are described. That includes: - Contributions to the validation of the single codes ATHLET and DYN3D by the analysis of experiments on natural circulation behaviour in thermohydraulic test facilities and solution of benchmark tasks on reactivity initiated transients, - the acquisition and evaluation of measurement data on transients in nuclear power plants, the validation of ATHLET-DYN3D by calculating an accident with delayed scram and a pump trip in VVER plants, - the complementary improvement of the code DYN3D by extension of the neutron physical data base, implementation of an improved coolant mixing model, consideration of decay heat release and xenon transients, - the analysis of steam leak scenarios for VVER-440 type reactors with failure of different safety systems, investigation of different model options. The analyses showed, that with realistic coolant mixing modelling in the downcomer and the lower plenum, recriticality of the scramed reactor due to overcooling can be reached. The application of the code complex ATHLET-DYN3D in Czech Republic, Bulgaria and the Ukraine has been started. Future work comprises the verification of ATHLET-DYN3D with a DYN3D version for the square fuel element geometry of western PWR. (orig.) [Deutsch] Das Reaktorkernmodell DYN3D mit 3D Neutronenkinetik wurde an den Thermohydraulik-Systemcode ATHLET angekoppelt. Im vorliegenden Bericht werden Arbeiten zur Qualifizierung des gekoppelten Codekomplexes zu einem validierten Hilfsmittel fuer Stoerfallablaufanalysen zu Reaktoren des russischen Typs WWER dargestellt. Diese umfassten im einzelnen: - Beitraege zur Validierung der Einzelcodes ATHLET und DYN3D anhand der Nachrechnung von Experimenten zum

  3. ISH. HVAC engineering yearbook 1999; ISH. Jahrbuch fuer Gebaeudetechnik 1999

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-11-01

    The 1999 HVAC engineering yearbook contains contributions on energy conservation and optimization in the fields of ventilation and air conditioning: inter alia, solar cooling and air conditioning, optimum rating of ventilator units, and cooling ceilings with ventilation function. In the field of heating, the following topics are addressed, equally under the aspect of energy conservation: condensing boiler technology, hydraulic balancing of heating pipe systems and sequential boiler switching using fuzzy control. Further works deal with rational use of electricity in buildings, and building automation. 17 papers are individually listed in the Energy database. [Deutsch] Das Jahrbuch fuer Gebaeudetechnik 1999 enthaelt Beitraege zur Energieeinsparung und Optimierung auf den Gebieten Lueftung und Klimatisierung, u. a. solare Kuehlung und Klimatisierung, optimale Auslegung von Ventilator-Aggregaten und Kuehldecken mit Lueftungsfunktion. Auf dem Gebiet der Heizung werden ebenfalls unter dem Gesichtspunkt Energieeinsparung die Brennwerttechnologie, der hydraulische Abgleich von Heizungsrohrnetzen sowie Kesselfolgeschaltungen mit Fuzzy Control angesprochen. Weitere Arbeiten befassen sich mit der rationellen Elektrizitaetsverwendung in Geb auden sowie der Gebaeudeautomation. Fuer die Datenbank Energy wurden 17 Arbeiten separat aufgenommen.

  4. Photovoltaics for appliances and small systems. Enhancement of the PVS for Windows simulation program for development and simulation of PV appliances and small systems. Final report; Photovoltaik fuer Geraete und Kleinsysteme. Erweiterung des Simulationsprogramms PVS fuer Windows zur Entwicklung und Simulation von PV-versorgten Geraeten und Kleinsystemen. Schlussbericht

    Energy Technology Data Exchange (ETDEWEB)

    Vogt, R.; Imann, C.; Jung, V.

    2002-06-28

    The PVS simulation program for Windows was to be extended to the development and simulation of PV-supported equipment and small systems. The following new functions were to be integrated: a) Simulation and dimensioning of indoor power supply of systems with different light sources and independent outdoor systems. b)Integration of small wind generators in the simulation and dimensioning of isolated autonomous systems, including wind data and a component database for small wind turbines; c) Differentiation of the PVS battery model for different battery types (lead, Ni/Cd, Li etc.), optimized operating strategies and flexible dimensioning including an additional component database for battery types; d) Extensive cost analysis for PV-supported appliances and small systems, from investments to consumption, operation and maintenance. This will facilitate investment decisions and help systems of this type along in the market. All program components were designed for high flexibility. Users should be able to vary as many parameters as possible, and to generate and modify their own records. The current project focused on the user interface, i.e. input, data processing, and output. Parallel to this, the Fraunhofer ISE Institute worked on modifications of the computer hardware. [German] Das Projekt zielte auf eine Erweiterung des Simulationsprogramms PVS fuer Windows zur Entwicklung und Simulation von PV-versorgten Geraeten und Kleinsystemen hin. Das Entwicklungsprodukt sollte zusaetzlich zu den bisherigen Funktionen insbesondere Folgendes leisten: (a) Simulation und Dimensionierung der Energieversorgung von Geraeten im Indoor-Bereich, wobei unterschiedliche Lichtquellen verarbeitet werden muessen, sowie von sonstigen netzfreien (Outdoor-) Kleinsystemen. (b) Einbindung kleiner Windgeneratoren in die Simulation und Dimensionierung von netzfernen Systemen (Insel-Anlagen), einschliesslich Bereitstellung der Wind-Daten und einer zusaetzlichen Komponenten-Datenbank fuer kleine

  5. Energy management systems in the practice. ISO 50001. A guideline for companies and institutions; Energiemanagementsysteme in der Praxis. ISO 50001. Leitfaden fuer Unternehmen und Organisationen

    Energy Technology Data Exchange (ETDEWEB)

    Kohlenborn, Walter; Kabisch, Sibylle; Klein, Johanna; Richter, Ina; Schuermann, Silas

    2012-06-15

    The guideline under consideration is an updated version of the guideline to the regulation EN 16001 and amended to ISO 50001. This contribution supports institutes in the implementation of an energy management system according to ISO 50001. The differences and commonalities to the European environment management system EMAS as well as to the regulation ISO 14001 are described. EMAS certified companies fulfil regularly all conditions of an energy management system. A practised energy management system is an excellent platform for the implementation of EMAS.

  6. Materials colloquium `96: Thermal insulation coatings. Thermally insulating coating systems for heavy-duty structural components in aerospace engineering and energy engineering; Werkstoff-Kolloquium `96: Waermedaemmschichten. Waermeisolierende Schichtsysteme fuer hoechstbelastete Strukturbauteile in der Luft- und Raumfahrt sowie der Energietechnik

    Energy Technology Data Exchange (ETDEWEB)

    Peters, M.; Schulz, U.; Leushake, U.; Kaysser, W.A. [eds.

    1996-12-31

    The 15 contributions in this colloquium report document the current state of research and development in Germany in the field of thermally insulating layer structures for heavy-duty components like gas turbines. Five papers have been recorded separately in the ENERGY database. [Deutsch] Die 15 Beitraege in diesem Kolloquiumband dokumentieren den aktuellen Stand der Forschungs- und Entwicklungsarbeiten in Deutschland auf dem Gebiet der waermeisolierenden Schichtsysteme fuer hoechstbelastete Bauteile wie z.B. Gasturbinen. Fuer die Datenbank ENERGY wurden fuenf Artikel separat aufgenommen.

  7. Measurements of transuranium nuclides in the environment at the Institute for Radiation Protection of the Gessellschaft fuer Strehlen-und Umweltforschung mbH, Munich

    International Nuclear Information System (INIS)

    Rosner, G.; Hoetzl, H.; Winkler, R.

    1978-01-01

    Work on environmental transuranium nuclides at the Institute for Radiation Protection of the Gesellschaft fur Strahlen-und Umweltforschung mbH, Munich, is briefly described and standard needs are discussed. Fallout plutonium measurements in air dust and precipitation samples started in 1970/1971. The procedure is outlined and results are presented as annual mean and sum values, respectively. Since 1973, transuranium nuclides in primary coolant, stack effluent air and waste-water samples from nuclear power stations are measured. Nuclides detected are 239 240 Pu, 238 Pu and/or 241 Am, 242 Cm and 244 Cm. Examples of alpha particle spectra are given. Needs for standards in environmental transuranium analysis are discussed. (author)

  8. Groundwater monitoring programme. A guide for groundwater sampling and analysis. 2. ed.; Grundwasserueberwachungsprogramm. Leitfaden fuer Probenahme und Analytik von Grundwasser

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-07-01

    Quality assurance guidelines have been developed and introduced in Baden-Wuerttemberg for groundwater monitoring. The contribution contains the fundamentals and technical guides for sampling and measurement of the Baden-Wuerttemberg groundwater monitoring programme, as well as parameter groups and a preliminary assessment of the methods. [German] Bei der Gewinnung von Umweltdaten sind hohe Anforderungen an die Qualitaet der erhobenen Daten zu stellen. Dies trifft in besonderem Masse gerade auch fuer Grundwasseruntersuchungen zu, da hier haeufig Konzentrationen im Bereich der Nachweisgrenze auftreten. Fuer das Grundwassermessnetz Baden-Wuerttemberg sind qualitaetssichernde Regelungen entwickelt und eingefuehrt worden. In der vorliegenden Zusammenstellung sind die Grundsatzpapiere, bzw. Technischen Anleitungen aus dem Grundwasserueberwachungsprogramm Baden-Wuerttemberg fuer die Grundwasserprobennahme sowie zu Messverfahren, Parametergruppen und zur ersten Beurteilung der Messergebnisse enthalten. (orig.)

  9. How to promote solar power. Strategic application of consumer and environmental psychology; Fuer Solarenergie. Konsumenten- und Umweltpsychologie strategisch anwenden

    Energy Technology Data Exchange (ETDEWEB)

    Huebner, G. [Halle Univ. (Germany). Lehrstuhl fuer Sozial- und Organisationspsychologie; Felser, G. [Halle Univ. (Germany). Lehrstuhl fuer Differentielle Psychologie und Psychologische Diagnostik

    2001-07-01

    Why are solar systems still so few and far between? The book presents answers based on a systematic analysis of the psychological aspects of the decision, e.g. consumer needs and motives. 'Social Marketing' is presented as a differentiated outline concept for developing strategies for selling solar power. The book addresses solar and agenda initiatives, environmental organisations, communities and energy-minded citizens as well as students of environmental science and psychology. [German] Warum sind Solaranlagen noch immer so selten? Antworten auf diese Frage finden sich im Buch, in dem aus Sicht der Konsumenten- und Umweltpsychologie die psychologischen Facetten der Entscheidung fuer Solarenergie, z.B. - die Beduerfnisse und Motive der Konsumenten von Solaranlagen - die Wirkungen von Informationsmaterial auf die Kaufentscheidung, erstmals systematisch analysiert werden. Mit dem 'Sozialen Marketing' wird ein differenziertes Rahmenkonzept fuer die Gestaltung von Strategien fuer Solarenergie vorgestellt. Dieses Buch ist vor allem hilfreich fuer Solar- und Agendainitiativen, Umweltverbaende, Kommunen und energiebewusste Buerger, da es praxisnahe Informationen und Handlungsempfehlungen vermittelt. Es wendet sich aber auch an Studierende der Umweltwissenschaften und der Psychologie. Es bereichert die Diskussion ueber Solarenergie mit Argumenten, die der Komplexitaet des Themas Rechnung tragen. (orig.)

  10. Institut fuer Festkoerperforschung. Scientific report 2006

    International Nuclear Information System (INIS)

    2006-01-01

    The following topics are dealt with: Quantum theory of materials, theoretical soft matter and biophysics, theory of structure formation, scattering methods, neutron scattering, electronic materials, soft condensed matter, microstructure, electronic properties, condensed matter physics, information technology with nanoelectronic systems, large-scale facilities for research with photons, neutrons, and ions. (HSI)

  11. Niedersaechsisches Institut fuer Radiooekologie. Annual report 1989

    International Nuclear Information System (INIS)

    1990-01-01

    Four contributions are concerned with sorption of I-129 at different soil biomass content and carrier iodine concentrations, and in organo-minerals and -soils, deposition of I-129 in regions with high Chernobyl fallout, and with accumulation of I-129 in human and bovine thyroids in Chile. Another four reports deal with aerosol measurements in the atmosphere of Ireland and in a city area of Luzern as well as particle measurements in the stratosphere. The influence of relative humidity on continuous dust measurements with the FH62 I-N is investigated. The behaviour of tritium transfer is studied with wind-tunnel experiments, and there is a report on a worst-case study on dose consequences after accidentally released HT. One more chapter is concerned with fertilizing damaged spruce trees in the Harz region with nutrient aerosols, and another with the set-up of a radioecological working group in Guatemala. (DG) [de

  12. Institut fuer Festkoerperforschung. Scientific report 2006

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2006-07-01

    The following topics are dealt with: Quantum theory of materials, theoretical soft matter and biophysics, theory of structure formation, scattering methods, neutron scattering, electronic materials, soft condensed matter, microstructure, electronic properties, condensed matter physics, information technology with nanoelectronic systems, large-scale facilities for research with photons, neutrons, and ions. (HSI)

  13. Radar and Lidar Radar DEM

    Science.gov (United States)

    Liskovich, Diana; Simard, Marc

    2011-01-01

    Using radar and lidar data, the aim is to improve 3D rendering of terrain, including digital elevation models (DEM) and estimates of vegetation height and biomass in a variety of forest types and terrains. The 3D mapping of vegetation structure and the analysis are useful to determine the role of forest in climate change (carbon cycle), in providing habitat and as a provider of socio-economic services. This in turn will lead to potential for development of more effective land-use management. The first part of the project was to characterize the Shuttle Radar Topography Mission DEM error with respect to ICESat/GLAS point estimates of elevation. We investigated potential trends with latitude, canopy height, signal to noise ratio (SNR), number of LiDAR waveform peaks, and maximum peak width. Scatter plots were produced for each variable and were fitted with 1st and 2nd degree polynomials. Higher order trends were visually inspected through filtering with a mean and median filter. We also assessed trends in the DEM error variance. Finally, a map showing how DEM error was geographically distributed globally was created.

  14. Digitial Elevation Model (DEM) 100K

    Data.gov (United States)

    Kansas Data Access and Support Center — Digital Elevation Model (DEM) is the terminology adopted by the USG to describe terrain elevation data sets in a digital raster form. The standard DEM consists of a...

  15. Digtial Elevation Model (DEM) 250K

    Data.gov (United States)

    Kansas Data Access and Support Center — Digital Elevation Model (DEM) is the terminology adopted by the USGS to describe terrain elevation data sets in a digital raster form. The standard DEM consists of a...

  16. Digital Elevation Model (DEM) 24K

    Data.gov (United States)

    Kansas Data Access and Support Center — Digital Elevation Model (DEM) is the terminology adopted by the USGS to describe terrain elevation data sets in a digital raster form. The standard DEM consists of a...

  17. Ageing management of mechanical components; Alterungsmanagement fuer mechanische Komponenten

    Energy Technology Data Exchange (ETDEWEB)

    Hienstorfer, W. [TUeV Energie- und Systemtechnik GmbH, Filderstadt (Germany); Herter, K.H.; Schuler, X. [Materialpruefungsanstalt, Univ. Stuttgart, Stuttgart (Germany)

    2004-07-01

    Lifetime management, ageing management and integrity testing are part of technical rules and specifications. The contribution focuses on ageing management, for which different technical measures are required depending on the safety relevance of the components and systems involved. The procedure for ensuring adherence to the specified quality is outlined, and the required technical and organisational measures are explained. (orig.) [German] In Leitlinien und Regelwerken sind fuer mechanische Komponenten Anforderungen zur Absicherung des Betriebs waehrend der gesamten Lebensdauer (Lebensdauermanagement), zur Absicherung von Alterungsphaenomenen (Alterungsmanagement) als auch zum Nachweis der Integritaet (Integritaetsnachweis, z.B. mit dem Ziel des Bruchausschlusses) enthalten. Ein wesentliches Element stellt dabei das Alterungsmanagement dar. Je nach sicherheitstechnischer Bedeutung der zu betrachtenden Komponenten und Systeme oder auch aus Gruenden der vorbeugenden Instandhaltung sind unterschiedliche technische Massnahmen erforderlich. Die Vorgehensweise zur Absicherung der im Betrieb geforderten Qualitaet wird aufgezeigt und die dabei erforderlichen technischen und organisatorischen Massnahmen werden erlaeutert. (orig.)

  18. Development of a concept for sustainable agriculture in the Elbe wetlands of Niedersachsen; Konzeptentwicklung fuer eine nachhaltige Landbewirtschaftung in den niedersaechsischen Elbtalauen

    Energy Technology Data Exchange (ETDEWEB)

    Prueter, J. [Alfred Toepfer Akademie fuer Naturschutz (NNA), Schneverdingen (Germany); Horlitz, T.; Sander, A. [Arbeitsgemeinschaft Umweltplanung (ARUM), Hannover (Germany)

    2000-07-01

    Since late 1997, a cooperative project headed by Alfred Toepfer Akademie fuer Naturschutz has been investigating ''Models of conservation and its application in agriculture - goals, instruments and cost of sustainable, environment-friendly agriculture in the Elbe river valley in Niedersachsen''. The project receives funds in the context of the BMBF project ''Elbe river ecology''. Using the specific methods and tools of ecology, landscaping, agriculture and economics, the fundamentals for future interdisciplinary landscape development concepts will be established. The contribution presents the methodology of concept development and some exemplary goals for sustainable agricultural development in the context of the project. [German] Seit Ende 1997 widmet sich im Rahmen der BMBF-Forschungsfoerderung ''Elbe-Oekologie'' ein Verbundforschungsvorhaben unter Federfuehrung der Alfred Toepfer Akademie fuer Naturschutz dem Thema ''Leitbilder des Naturschutzes und deren Umsetzung mit der Landwirtschaft - Ziele, Instrumente und Kosten einer umweltschonenden und nachhaltigen Landwirtschaft im niedersaechsischen Elbetal''. Mit den spezifischen Methoden und fachlichen Instrumenten der Oekologie, der Landschaftsplanung sowie der Agrarwissenschaften einschliesslich Oekonomie sollen Grundlagen fuer moegliche ressortuebergreifend getragene Konzepte fuer die zukuenftige Landschaftsentwicklung erarbeitet werden. Im folgenden werden methodische Grundlagen der Konzeptentwicklung und beispielhafte Zielaussagen fuer eine nachhaltige Landbewirtschaftung aus dem laufenden Projekt vorgestellt. (orig.)

  19. The stuff of enlightening diagnoses; Stoff fuer erhellende Diagnosen

    Energy Technology Data Exchange (ETDEWEB)

    Huebner, Karl

    2017-07-01

    Doctors today already frequently rely on positron emission tomography - PET for short - in cancer diagnostics. However, in order to use this method for other diseases, too, they need suitable tracer substances containing radioactive fluorine-18 - a challenge for Tobias Ritter and his team at the Max Planck Institut fuer Kohlenforschung in Muelheim an der Ruhr. The chemists are searching for ways to label diverse molecules with fluorine-18 and thus expand the range of possibilities for medical specialists.

  20. DEM - distribution energy management

    Energy Technology Data Exchange (ETDEWEB)

    Seppaelae, A; Kekkonen, V; Koreneff, G [VTT Energy, Espoo (Finland); and others

    1998-08-01

    The electricity market was de-regulated in Finland at the end of 1995 and the customers can now freely choose their power suppliers. The national grid and local distribution network operators are now separated from the energy business. The network operators transmit the electric power to the customers on equal terms regardless from whom the power is purchased. The Finnish national grid is owned by one company Finnish Power Grid PLC (Fingrid). The major shareholders of Fingrid are the state of Finland, two major power companies and institutional investors. In addition there are about 100 local distribution utilities operating the local 110 kV, 20 kV and 0.4 kV networks. The distribution utilities are mostly owned by the municipalities and towns. In each network one energy supplier is always responsible for the hourly energy balance in the network (a `host`) and it also has the obligation to provide public energy prices accessible to any customer in the network`s area. The Finnish regulating authorities nominate such a supplier who has a dominant market share in the network`s area as the supplier responsible for the network`s energy balance. A regulating authority, called the Electricity Market Centre, ensures that the market is operating properly. The transmission prices and public energy prices are under the Electricity Market Centre`s control. For domestic and other small customers the cost of hourly metering (ca. 1000 US$) would be prohibitive and therefore the use of conventional energy metering and load models is under consideration by the authorities. Small customer trade with the load models (instead of the hourly energy recording) is scheduled to start in the first half of 1998. In this presentation, the problems of energy management from the standpoint of the energy trading and distributing companies in the new situation are first discussed. The topics covered are: the hourly load data management, the forecasting and estimation of hourly energy demands

  1. Oil-free piston compressors for compressed air and gas; Oellose Kolbenkompressoren fuer Druckluft und Gase

    Energy Technology Data Exchange (ETDEWEB)

    Frefel, B. [Fritz Haug AG, St. Gallen (Switzerland)

    2002-11-01

    Oil-free compressors are lubricated with special materials in dry operation. The technology was developed 35 years ago by the Swiss company, Fritz Haug AG. Originally developed for 10 - 40 bar, oil-free compressors are now available for both the low-pressure and high-pressure range. [German] Unter dem Begriff ''oellose Kompressoren'' versteht man Verdichter, die in der ganzen Anlage keinen Tropfen Oel verwenden, weder im Fuehrungs- und Verdichtungstell noch im Triebwerk. Die Schmierung erfolgt mit speziellen Materiallen im Trockenlauf. Die Technik der oellosen und trockenlaufenden Kolbenkompressoren wurde bereits vor rund 35 Jahren von der schweizer Firma Fritz Haug AG entwickelt. Anfaenglich war die Anwendung der Verdichtung von Luft auf 10 bis 40 bar vorbehalten. Durch Weiterentwicklungen in neue Materiallen und in der Konstruktion besteht heute auch ein umfangreiches Sortiment an Kompressoren fuer die oellose und trockene Verdichtung von Gasen fuer den Nieder- und Hochdruckbereich. (orig.)

  2. Neuropathological research at the "Deutsche Forschungsanstalt fuer Psychiatrie" (German Institute for Psychiatric Research) in Munich (Kaiser-Wilhelm-Institute). Scientific utilization of children's organs from the "Kinderfachabteilungen" (Children's Special Departments) at Bavarian State Hospitals.

    Science.gov (United States)

    Steger, Florian

    2006-09-01

    During National Socialism, the politically motivated interest in psychiatric genetic research lead to the founding of research departments specialized in pathological-anatomical brain research, the two Kaiser Wilhelm-Institutes (KWI) in Berlin and Munich. The latter was indirectly provided with brain material by Bavarian State Hospitals, to three of which "Kinderfachabteilungen" (Special Pediatric Units) were affiliated. As children became victims of the systematically conducted child "euthanasia" in these Special Pediatric Units, this paper will address the question whether and to which extent the organs from victims of child "euthanasia" were used for (neuro-) pathological research at the KWI in Munich. By means of case studies and medical histories (with focus on the situation in Kaufbeuren-Irsee), I will argue that pediatric departments on a regular base delivered slide preparations, that the child "euthanasia" conduced in these departments systematically contributed to neuropathological research and that slide preparations from victims of child "euthanasia" were used in scientific publications after 1945.

  3. Single room control for user-optimised room air conditions; Einzelraumregelung fuer nutzungsoptimiertes Raumklima

    Energy Technology Data Exchange (ETDEWEB)

    Lezius, A. [Staefa Control System GmbH, Leinfelden-Echterdingen (Germany)

    1995-12-31

    In chapter 14 of the anthology about building control the single room control for achieving user-optimised room air conditions is described. The following aspects are discussed: What is comfort? What is economic efficiency? Systems for secondary air treatment, adapted functions of the measurement and control technique, management functions, orientation of the demand at the use, investment and amortisation. (BWI) [Deutsch] Kapitel 14 des Sammelbandes ueber Building control ist dem Thema der Einzelraumregelung zur Erzielung eines nutzungsoptimierten Raumklimas gewidmet. In diesem Zusammenhang werden folgende Themenbereiche angesprochen: Was ist Komfort? Was ist Wirtschaftlichkeit? Systeme fuer sekundaere Luftbehandlung; Angepasste Funktionen der MSR-Technik; Managementfunktionen; Bedarfsorientierung an der Nutzung; Investition und Amortisation. (BWI)

  4. The energy-optimized house at Zittau - a new teaching and research buliding for gas and HVAC engineering; Das Niedrigenergiehaus Zittau - ein neues Lehr- und Foschungsgebaeude fuer die Gas- und die Versorgungstechnik

    Energy Technology Data Exchange (ETDEWEB)

    Wilsdorf, J. [Hochschule fuer Technik, Wirtschaft und Sozialwesen, Zittau/Goerlitz, Zittau (Germany). Fachbereich Bauwesen, Lehrgebiet Gastechnik

    1996-06-01

    By means of the new energy-optimized building at Zittau, an education and research object, the Hochschule fuer Technik, Wirtschaft und Sozialwesen of Zittau is enhancing the practice-oriented education of students especially in the curricula hvac engineering and structural engineering. As an experimental building it is, at the same time, a complex system demonstrating energy-saving construction and heating and permitting to carry out research and development work. The article describes the concepts and execution of the building. (orig.) [Deutsch] Mit dem neuen Lehr- und Forschungsgebaeude `Niedrigenergiehaus Zittau` verbessert die Hochschule fuer Technik, Wirtschaft und Sozialwesen Zittau die praxisbezogene Ausbildung der Studenten vor allem in den Studiengaengen der Ver- und Entsorgungstechnik und des Bauingenieurwesens. Zugleich ist es als Experimentalbau ein komplexes System fuer energiesparendes Bauen und Heizen und bietet hervorragende Voraussetzungen fuer die Durchfuehrung von Forschungs- und Entwicklungsarbeiten. Im Artikel werden Konzepte und Einrichtungen des Gebaeudes beschrieben. (orig.)

  5. Surface phenomena in thermionic research. Oberflaechenphysikalische Probleme der Thermionik. Vortrage aus der Round-table- Konferenz im Institut fuer Energiewandlung und Elektrische Antriebe der DFVLR in Stuttgart 1972 [Nine papers, 4 summaries

    Energy Technology Data Exchange (ETDEWEB)

    Henne, R. (ed.)

    1973-07-15

    This report compiles papers concerning especially recent developments in work function theory and work function measurements, which were given at a round table conference about surface phenomena in thermionic research, arranged by the 'Deutsche Forschungs- und Versuchsanstalt fuer Luft- und Raumfahrt' in Stuttgart on Nov. 20 and Dec. 1, 1972. 9 papers are printed completely, 4 others in form of a summary. Two of them concern the work function of uncovered surfaces, 2 others show the influence of adsorbed electropositive elements (Cs, Sr) on work function. In 4 papers the coadsorption of electropositive (Cs, Sr, resp. Ba) and electronegative (O {sub 2}) elements and their influence on work function of different surfaces are discussed. Finally a paper is added, describing the development of Sr-Cs-alloys, which are of interest for the generation of the atmosphere of a Sr-Cs-converter by means of one single reservoir. (auth)

  6. Surface phenomena in thermionic research. Oberflaechenphysikalische Probleme der Thermionik. Vortrage aus der Round-table- Konferenz im Institut fuer Energiewandlung und Elektrische Antriebe der DFVLR in Stuttgart 1972 [Nine papers, 4 summaries

    Energy Technology Data Exchange (ETDEWEB)

    Henne, R [ed.

    1973-07-15

    This report compiles papers concerning especially recent developments in work function theory and work function measurements, which were given at a round table conference about surface phenomena in thermionic research, arranged by the 'Deutsche Forschungs- und Versuchsanstalt fuer Luft- und Raumfahrt' in Stuttgart on Nov. 20 and Dec. 1, 1972. 9 papers are printed completely, 4 others in form of a summary. Two of them concern the work function of uncovered surfaces, 2 others show the influence of adsorbed electropositive elements (Cs, Sr) on work function. In 4 papers the coadsorption of electropositive (Cs, Sr, resp. Ba) and electronegative (O {sub 2}) elements and their influence on work function of different surfaces are discussed. Finally a paper is added, describing the development of Sr-Cs-alloys, which are of interest for the generation of the atmosphere of a Sr-Cs-converter by means of one single reservoir. (auth)

  7. Determination of the Dalitz-plot parameter {alpha} for the decay {eta}{yields}3{pi}{sup 0} with the Crystal Ball at MAMI; Bestimmung des Dalitz-Plot-Parameters {alpha} fuer den Zerfall {eta} {yields} 3{pi}{sup 0} mit dem Crystal Ball am MAMI

    Energy Technology Data Exchange (ETDEWEB)

    Unverzagt, Marc

    2008-05-26

    In order to determine the Dalitz-plot parameter {alpha} experiments were evaluated, Which were performed with the Crystal Ball/TAPS facility at the accelerator MAMI of the Institute for Nuclear Physics at the Johannes Gutenberg University in Mainz in the years 2004 and 2005. {eta} mesons wer produced via the reaction {gamma}p{yields}{eta}p. From four different analyses the following four in this thesis determined Dalitz-plot parameters with the given statistics resulted: {eta} without proton: {alpha}=-0.0314{+-}0.0013{sub -0.0014}{sup +0.0017} (1.1.10{sup 6} events), {eta} with proton: {alpha}=-0.0338{+-}0.0020{sub -0.0022}{sup +0.0019} (4.2.10{sup 5} events), {delta}{sup +} magnetic dipole moment without proton: {alpha}=-0.0277{+-}0.0013{sub -0.0019}{sup +0.0014} (7.1.10{sup 5} events), {delta}{sup +} magnetic dipole moment with proton: {alpha}=-0.0272{+-}0.0019{sub -0.0043}{sup +0.0022} (3.1.10{sup 5} events).

  8. TALGO BT - a variable gauge diesel driving unit for TALGO trains; TALGO BT - ein Diesel-Triebkopf mit variabler Spurweite fuer TALGO-Zuege

    Energy Technology Data Exchange (ETDEWEB)

    Zander, C.P. [Siemens Krauss-Maffei Lokomotiven GmbH, Muenchen (Germany)

    2000-03-01

    An adjustable driving unit was developed for the variable gauge TALGO trains which have been in use for decades. The unit also has a novel type of carriage and a novel braking system. [German] Fuer die seit Jahrzehnten im Einsatz befindlichen, spurwechselfaehigen TALGO-Zuege wurde ein umspurbarer Triebkopf entwickelt. Dieses Fahrzeug ist in mehrfacher Hinsicht ohne Vorbild. Neu sind neben dem spurveraenderlichen Drehgestell die Fahrwerksanordnung und das Bremssystem. (orig.)

  9. Dewatering of sludge using the hydrosoft high-pressure process; Entwaessern von Schlaemmen mit dem Hydrosoft-Hochdruckverfahren

    Energy Technology Data Exchange (ETDEWEB)

    Eder, C.; Eder, G. [Christian Eder Technology GbR, Neunkirchen (Germany)

    1999-07-01

    The hydrosoft process permits to dewater sludge, especially also sludge from municipal sewage treatment plant, until it contains a high proportion of dry substance. For existing dewatering systems equipped with the long-lived chamber filter presses, too, the dry matter content of the filter cake can be substantially increased using the hydrosoft process; only the pump system must be retrofitted. As a preliminary measure, tests with mobile pilot plants should be carried out. (orig.) [German] Mit dem Hydrosoft-Verfahren besteht die Moeglichkeit Schlaemme, insbesondere auch Schlaemme aus kommunalen Klaeranlagen, auf hohe Trockensubstanz-Gehalte zu entwaessern. Auch bei bestehenden Entwaesserungsanlagen, die mit den langlebigen Kammerfilterpressen ausgeruestet sind, koennen die Trockensubstanzgehalte der Filterkuchen mit dem Hydrosoft-Verfahren, fuer das dann nur noch das Pumpsystem nachgeruestet werden muss, wesentlich angehoben werden. Vorausgehen sollten jeweils Vorversuche mit mobilen Versuchsanlagen. (orig.)

  10. Automated Quality Control for Ortholmages and DEMs

    DEFF Research Database (Denmark)

    Höhle, Joachim; Potucková, Marketa

    2005-01-01

    The checking of geometric accurancy of orthoimages and digital elevation models (DEMs) is discussed. As a reference, an existing orthoimage and a second orthoimage derived from an overlapping aerial image, are used. The proposed automated procedures for checking the orthoimages and DEMs are based...

  11. Forest report 2012 for Baden-Wuerttemberg; Waldzustandsbericht 2012 fuer Baden-Wuerttemberg

    Energy Technology Data Exchange (ETDEWEB)

    Meining, Stefan [Buero fuer Umweltueberwachung, Freiburg (Germany); Wilpert, Klaus v.; Schaeffer, Juergen; Hartmann, Peter; Schumacher, Joerg; Delb, Horst [Forstliche Versuchs- und Forschungsanstalt Baden-Wuerttemberg, Freiburg im Breisgau (Germany); Augustin, Nicole [Bath Univ. (United Kingdom)

    2012-07-01

    The Forest State Report 2012 systematically records the health status of the forest resources in the country on a scientific basis. Environmental information is measured, recorded and evaluated in the context of forest environmental monitoring using a measuring network. More than a third of the forest area has suffered significant damage. The share of undamaged forest areas has declined by almost one third to 26 percent since last year. Compared to the previous year, the crown damage increased by an average of 2.5 percentage points. More important, however, is the fact that for the two main tree species spruce and beech since the turn of the millennium, there has been a marked increase in the damage intensity for all age groups. [German] Der Waldzustandsbericht 2012 erfasst auf wissenschaftlicher Basis systematisch den Gesundheitszustand der Waldbestaende im Land. Im Rahmen des Forstlichen Umweltmonitorings werden mit Hilfe eines Messnetzes Umweltinformationen gemessen, erfasst und ausgewertet. Ueber ein Drittel der Waldflaeche weist deutliche Schaeden auf. Der Anteil der ungeschaedigten Waldflaechen ist seit dem letzten Jahr um fast ein Drittel auf 26 Prozent zurueckgegangen. Die Kronenschaeden haben gegenueber dem Vorjahr um durchschnittlich 2,5 Prozentpunkte zugenommen. Wichtiger ist jedoch der Befund, dass fuer die beiden Hauptbaumarten Fichte und Buche seit der Jahrtausendwende ein deutlicher Anstieg der Schadensintensitaet fuer alle Altersklassen zu beobachten ist.

  12. Gesellschaft fuer Anlagen- und Reaktorsicherheit (GRS). Annual report 2010/2011; Gesellschaft fuer Anlagen- und Reaktorsicherheit (GRS). Jahresbericht 2010/2011

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2011-07-01

    The annual report 2010/11 of the Gesellschaft fuer Anlagen- und Reaktorsicherheit (GRS) covers the following topics: organization, corporate development and public relations; reactor accident in Fukushima; Projects and work priorities (reactor safety; waste management; radiation and environmental protection; international projects); project management and project support; equity participations and subsidiaries (RISKAUDIT IRSN/GRS International; institute for safety technologies (ISTec), European Nuclear Safety Training and Tutoring Institute (ENSTTI)).

  13. A comparison of three different types of collectors for process heat uses; Vergleich von drei verschiedenen Kollektortypen fuer Prozesswaermeanwendungen

    Energy Technology Data Exchange (ETDEWEB)

    Brunold, S. [Solarenergie Pruef- und Forschungsstelle SPF-ITR, Rapperswil (Switzerland); Frey, R. [Solarenergie Pruef- und Forschungsstelle SPF-ITR, Rapperswil (Switzerland); Frei, U. [Solarenergie Pruef- und Forschungsstelle SPF-ITR, Rapperswil (Switzerland)

    1995-12-31

    A comparison of the measured and simulated values of three collector types shows that evacuated tube collectors are superior to transparent-insulation flat collectors in the case of high-temperature uses. At temperatures of 150 C and above good results were obtained using evacuated tube collectors with compound parabolic concentrators manufactured by Microtherm. CORTEC collectors are suited for temperatures in the range of 100 C to 150 C provided that the surface ratio is irrelevant. Costs play a decisive role when selecting systems. The results obtained show that improved transparent-insulation flat collectors can compete with evacuated tube collectors in the 100 C to 150 C temperature range. (orig.) [Deutsch] Ein Vergleich der gemessenen und simulierten Werte der drei Kollektoren zeigt, dass die Vakuumroehrenkollektoren fuer den Einsatz in Hochtemperaturanwendungen dem mit transparenter Waermedaemmung isolierten Flachkollektor ueberlegen sind. Der Vakuumroehrenkollektor mit CPC von Microtherm erzielt gute Resultate ab 150 C und mehr. Wogegen der CORTEC-Kollektor fuer den Einsatz im Temperaturbereich zwischen 100 C und 150 C geeignet ist, solange das Flaechenverhaeltnis keine Rolle spielt. Wie fuer die meisten Anwendungen spielen die Kosten eine entscheidende Rolle fuer die Wahl des eingesetzten Systems. Die Resultate zeigen, dass ein verbesserter mit TWD ausgeruesteter Flachkollektor im Temperaturbereich von 100 C bis 150 C konkurrenzfaehig zu Vakuumroehrenkollektoren sein kann. (orig.)

  14. Preventive strategy for nanomaterials. Special report; Vorsorgestrategien fuer Nanomaterialien. Sondergutachten

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2012-07-01

    knowledge of which nanomaterials are used in which products. The SRU sees a need for greater transparency here to enable public authorities to react swiftly whenever evidence of health or environmental risks arises. Consumers should in principle enjoy freedom of choice. For this reason the SRU recommends creating a registry of nanoproducts and supplementation of existing labelling requirements. [German] In diesem Sondergutachten gibt der Sachverstaendigenrat fuer Umweltfragen (SRU) Empfehlungen fuer einen verantwortungsvollen, vorsorgeorientierten Umgang mit dieser Technologie. Ziel ist es, Innovationen zu ermoeglichen, aber auch Risiken fruehzeitig zu erkennen und zu mindern. Der SRU sieht dringenden Handlungsbedarf bei der Regulierung von Nanomaterialien und fordert mehr Transparenz bei Verbraucherprodukten ein. Sobald ein begruendeter Anlass zur Besorgnis besteht, muss nach dem Vorsorgeprinzip gehandelt und zwischen Risiken und Chancen abgewogen werden. Um dies zu ermoeglichen, sind zahlreiche rechtliche Aenderungen erforderlich. Nanomaterialien und Nano-Produkte unterliegen grundsaetzlich dem Stoff-, Produkt- und Umweltrecht. In der Praxis fuehren aber die Besonderheiten von Nanomaterialien dazu, dass nicht alle rechtlichen Instrumente greifen. So werden Nanomaterialien bei der Registrierung von Chemikalien und bei der Zulassung von Produkten nicht immer separat erfasst und damit bewertet. Der SRU empfiehlt, solche nanospezifischen Regelungsluecken schnell zu schliessen. Dazu ist es notwendig, Nanomaterialien verbindlich zu definieren, sie grundsaetzlich bei der Risikobewertung von Chemikalien wie eigenstaendige Stoffe zu behandeln und mit einem eigens auf sie zugeschnittenen Datensatz zu registrieren. Dabei duerfen die Risiken von Nanomaterialien nicht pauschal bewertet werden, weil manche Materialien nach heutigem Kenntnisstand unbedenklich sind, waehrend bei anderen ein Risikopotenzial besteht. Einen Anlass zur Besorgnis sieht der SRU vor allem bei der Verwendung von

  15. ArcticDEM Validation and Accuracy Assessment

    Science.gov (United States)

    Candela, S. G.; Howat, I.; Noh, M. J.; Porter, C. C.; Morin, P. J.

    2017-12-01

    ArcticDEM comprises a growing inventory Digital Elevation Models (DEMs) covering all land above 60°N. As of August, 2017, ArcticDEM had openly released 2-m resolution, individual DEM covering over 51 million km2, which includes areas of repeat coverage for change detection, as well as over 15 million km2 of 5-m resolution seamless mosaics. By the end of the project, over 80 million km2 of 2-m DEMs will be produced, averaging four repeats of the 20 million km2 Arctic landmass. ArcticDEM is produced from sub-meter resolution, stereoscopic imagery using open source software (SETSM) on the NCSA Blue Waters supercomputer. These DEMs have known biases of several meters due to errors in the sensor models generated from satellite positioning. These systematic errors are removed through three-dimensional registration to high-precision Lidar or other control datasets. ArcticDEM is registered to seasonally-subsetted ICESat elevations due its global coverage and high report accuracy ( 10 cm). The vertical accuracy of ArcticDEM is then obtained from the statistics of the fit to the ICESat point cloud, which averages -0.01 m ± 0.07 m. ICESat, however, has a relatively coarse measurement footprint ( 70 m) which may impact the precision of the registration. Further, the ICESat data predates the ArcticDEM imagery by a decade, so that temporal changes in the surface may also impact the registration. Finally, biases may exist between different the different sensors in the ArcticDEM constellation. Here we assess the accuracy of ArcticDEM and the ICESat registration through comparison to multiple high-resolution airborne lidar datasets that were acquired within one year of the imagery used in ArcticDEM. We find the ICESat dataset is performing as anticipated, introducing no systematic bias during the coregistration process, and reducing vertical errors to within the uncertainty of the airborne Lidars. Preliminary sensor comparisons show no significant difference post coregistration

  16. Statistical-dynamic climate forecast for Europe and Germany. Final report; Statistisch-dynamische Klimavorhersage fuer Europa und Deutschland. Abschlussbericht

    Energy Technology Data Exchange (ETDEWEB)

    Denhard, M.; Schoenwiese, C.D.

    2001-07-01

    Principal Correlation Pattern Analysis (PCPA) maps the local circulation, temperature and precipitation anomalies in the northern hemisphere in monthly resolution and permits an interpretation of their causes. Calculations are made for the El Nino phenomenon, NAO, and the quasi-11-year cycle of solar radiation variation. Especially the El Nino calculations show the efficiency of PCPA. [German] Mit Hilfe der Principal Correlation Pattern Analysis (PCPA) koennen die von verschiedenen Klimaantrieben erzeugten lokalen Zirkulations-, Temperatur- und Niederschlagsanomalien auf der Nordhemisphaere in monatlicher Aufloesung dargestellt und ursaechlich interpretiert werden. Diese Rechnungen wurden fuer das El Nino Phaenomen, die NAO und den quasi 11-jaehrigen Zyklus der solaren Strahlungsschwankungen durchgefuehrt. Insbesondere die Untersuchungen zu Wirkungen von El Nino auf Europa zeigen, dass die PCPA die Kopplungen eines Prozesses mit dem Klimasystem sehr genau beschreibt und somit die Voraussetzungen schafft, die Wirkungen dieses Klimaantriebs zu modellieren und ihn zur Vorhersage zu nutzen. Erste einfache Vorhersageexperimente fuer das europaeische Klima bestaetigen diese Aussage. (orig.)

  17. Estimating Coastal Digital Elevation Model (DEM) Uncertainty

    Science.gov (United States)

    Amante, C.; Mesick, S.

    2017-12-01

    Integrated bathymetric-topographic digital elevation models (DEMs) are representations of the Earth's solid surface and are fundamental to the modeling of coastal processes, including tsunami, storm surge, and sea-level rise inundation. Deviations in elevation values from the actual seabed or land surface constitute errors in DEMs, which originate from numerous sources, including: (i) the source elevation measurements (e.g., multibeam sonar, lidar), (ii) the interpolative gridding technique (e.g., spline, kriging) used to estimate elevations in areas unconstrained by source measurements, and (iii) the datum transformation used to convert bathymetric and topographic data to common vertical reference systems. The magnitude and spatial distribution of the errors from these sources are typically unknown, and the lack of knowledge regarding these errors represents the vertical uncertainty in the DEM. The National Oceanic and Atmospheric Administration (NOAA) National Centers for Environmental Information (NCEI) has developed DEMs for more than 200 coastal communities. This study presents a methodology developed at NOAA NCEI to derive accompanying uncertainty surfaces that estimate DEM errors at the individual cell-level. The development of high-resolution (1/9th arc-second), integrated bathymetric-topographic DEMs along the southwest coast of Florida serves as the case study for deriving uncertainty surfaces. The estimated uncertainty can then be propagated into the modeling of coastal processes that utilize DEMs. Incorporating the uncertainty produces more reliable modeling results, and in turn, better-informed coastal management decisions.

  18. Urban DEM generation, analysis and enhancements using TanDEM-X

    Science.gov (United States)

    Rossi, Cristian; Gernhardt, Stefan

    2013-11-01

    This paper analyzes the potential of the TanDEM-X mission for the generation of urban Digital Elevation Models (DEMs). The high resolution of the sensors and the absence of temporal decorrelation are exploited. The interferometric chain and the problems encountered for correct mapping of urban areas are analyzed first. The operational Integrated TanDEM-X Processor (ITP) algorithms are taken as reference. The ITP main product is called the raw DEM. Whereas the ITP coregistration stage is demonstrated to be robust enough, large improvements in the raw DEM such as fewer percentages of phase unwrapping errors, can be obtained by using adaptive fringe filters instead of the conventional ones in the interferogram generation stage. The shape of the raw DEM in the layover area is also shown and determined to be regular for buildings with vertical walls. Generally, in the presence of layover, the raw DEM exhibits a height ramp, resulting in a height underestimation for the affected structure. Examples provided confirm the theoretical background. The focus is centered on high resolution DEMs produced using spotlight acquisitions. In particular, a raw DEM over Berlin (Germany) with a 2.5 m raster is generated and validated. For this purpose, ITP is modified in its interferogram generation stage by adopting the Intensity Driven Adaptive Neighbourhood (IDAN) algorithm. The height Root Mean Square Error (RMSE) between the raw DEM and a reference is about 8 m for the two classes defining the urban DEM: structures and non-structures. The result can be further improved for the structure class using a DEM generated with Persistent Scatterer Interferometry. A DEM fusion is thus proposed and a drop of about 20% in the RMSE is reported.

  19. Infrared camera - specially developed for professional building inspection - with dew point detection tracing out fungi formation; Infrarotkamera - speziell entwickelt fuer die professionelle Gebaeudeinspektion - mit Taupunktermittlungsfunktion zum schnellen Auffinden von Gefahrbereichen fuer Schimmelbildung

    Energy Technology Data Exchange (ETDEWEB)

    Anon.

    2004-07-01

    Besides the positive effect of energy saving the aspect of fungi formation has also to be respected. Fungi is not only responseable for health diseases but can also damage building materials. Examples are shown and how they can be detect by an infrared monitoring camera. (GL) [German] Die Waermeschutzverordnung und das daraus hervorgegangene Energieeinspargesetz haben weitreichende Folgen fuer Architekten, Bauingenieure, Instandhalter und Sanierer: Zeitgemaesse Gebaeude werden immer dichter, Luftzirkulation und damit der Feuchtigkeitsaustausch werden weitgehend unterbunden. Neben dem positiven Effekt der Energieersparnis ergibt sich dadurch leider oft auch ein Problem durch Schimmelbildung. Dabei ist zu bedenken, dass Schimmelpilz nicht nur gesundheitsgefaehrend ist, sondern oft auch die Bausubstanz signifikant schaedigen kann. (orig.)

  20. Five years of proton therapy of tumours of the eye at Hahn-Meitner Institute, Berlin; Fuenf Jahre Protonentherapie von Augentumoren am Hahn-Meitner-Institut Berlin

    Energy Technology Data Exchange (ETDEWEB)

    Heufelder, J.; Cordini, D.; Heese, J.; Homeyer, H.; Kluge, H.; Morgenstern, H. [Hahn-Meitner-Inst. Berlin, Augentumortherapie (Germany); Fuchs, H. [Hahn-Meitner-Inst. Berlin, Augentumortherapie (Germany); Augenklinik, Charite - Universitaetsmedizin Berlin, Campus Benjamin Franklin (Germany); Hoecht, S.; Nausner, M.; Hinkelbein, W. [Klinik fuer Radioonkologie und Strahlentherapie, Charite - Universitaetsmedizin Berlin, Campus Benjamin Franklin (Germany); Bechrakis, N.E.; Foerster, M.H. [Augenklinik, Charite - Universitaetsmedizin Berlin, Campus Benjamin Franklin (Germany)

    2004-07-01

    Eye tumors (choroidal melanomas, iris melanomas, and choroidal hemangiomas) are being treated with 68 MeV protons since 1998 at the Ion Beam Laboratory of the Hahn-Meitner Institute of Berlin (Germany's first proton therapy center), in cooperation with the Charite University Hospital in Berlin, Campus Benjamin Franklin. The proton beam, generated via a combination of Van de Graaff accelerator and cyclotron, is prepared by passive shaping for conformal tumor irradiation. A digital X-ray verification of the tumor location with the patient in sitting position limits the position uncertainties to a maximum of 0,3 mm. The treatment planning is performed using the program EYEPLAN. OCTOPUS, a CT-based planning program developed in cooperation with the German Cancer Research Center of Heidelberg, is under pre-clinical testing. Thus far, more than 400 patients have been irradiated. The first results are comparable to those obtained in other proton therapy centers. At the end of 2002, the University Hospital of Essen has also become a cooperation partner of the Hahn-Meitner Institute. (orig.) [German] Seit 1998 werden am Ionenstrahllabor des Hahn-Meitner-Instituts Berlin (Deutschlands erster Einrichtung zur Protonentherapie) im Rahmen eines Kooperationsvertrages mit der Charite - Universitaetsmedizin Berlin, Campus Benjamin Franklin, Augentumoren (Aderhautmelanome, Irismelanome und Aderhauthaemangiome) mit 68-MeV-Protonen bestrahlt. Der mittels einer Kombination aus Van de Graaff-Beschleuniger und Zyklotron erzeugte Protonenstrahl wird passiv fuer eine konformale Bestrahlung des Tumors aufbereitet. Eine digitale Roentgenkontrolle der Lagerung des sitzenden Patienten beschraenkt die Lagerungsunsicherheit auf maximal 0,3 mm. Fuer die Bestrahlungsplanung wird das modellbasierte Planungsprogramm EYEPLAN verwendet. In vorklinischer Erprobung befindet sich das mit dem Deutschen Krebsforschungszentrum Heidelberg entwickelte CT-basierte Planungsprogramm OCTOPUS. Bisher wurden

  1. 2014 USACE NCMP Topobathy Lidar DEM: Oregon

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — These Digital Elevation Model (DEM) files contain rasterized topobathy lidar elevations at a 1 m grid size, generated from data collected by the Coastal Zone Mapping...

  2. 2016 USGS Lidar DEM: Maine QL2

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Product: These are Digital Elevation Model (DEM) data for Franklin, Oxford, Piscataquis, and Somerset Counties, Maine as part of the required deliverables for the...

  3. Eine Analyse des Zusammenhangs zwischen dem Konsum von Alkopops und dem Problemverhalten von Jugendlichen

    OpenAIRE

    Metzner, Cornelia Beate Isabel

    2007-01-01

    Zielsetzung: In dieser Arbeit wird untersucht, ob bei Jugendlichen ein Zusammenhang zwischen dem Konsum von Alkopops einerseits und dem sonstigen Alkoholtrinkverhalten, dem Konsum von Zigaretten und illegalen Drogen sowie weiteren Risikoverhaltensweisen andererseits besteht, ferner ob sich Unterschiede im Verhalten von Jungen und Mädchen ergeben. Theoretischer und empirischer Hintergrund: �Alkopops�, d. h. Mischgetränke diverser Hersteller aus Likör bzw. Schnaps und Limonade sowie wein- ...

  4. Recent developments in the electricity generation market in 2014; Aktuelle Entwicklungen auf dem Stromerzeugungsmarkt im Jahr 2014

    Energy Technology Data Exchange (ETDEWEB)

    Hofmann, Holger [Oppenhoff und Partner Rechtsanwaelte Steuerberater mbB, Koeln (Germany)

    2015-02-16

    Following up the report on the developments in the Electricity market from last year to this case this article shall give an overview of the current developments in 2014. The year 2014 was marked by the energy sector Program of the coalition agreement, which, under the three objectives of security of supply Affordability and environmental impact which has made clear Specifications for the production side in particular with regard to the final Nuclear Phase-out phase, the announced amendment of the EEG, system stability and also Fracking. The predominant theme in 2014 this was certainly the reform of the EEG and around it rambling topics on European level. Too much uncertainty with plant operators, investors and companies in German power generation market, has led in addition to the mentioned legislative package the revision of the EU environmental and energy aid guidelines, State aid procedure of the European Commission regarding the German promotion of electricity from renewable Energy and the process in the case of Aaland Vindkraft before the ECJ. The dynamics on the generation side, inter alia through the increased connection of decentralized generation plants, result in an increasing regulation in power generation. Finally a first bill for Fracking is published at the end of 2014. [German] Anknuepfend an den Bericht ueber die Entwicklungen auf dem Stromerzeugungsmarkt aus dem letzten Jahr soll dieser Beitrag einen Ueberblick ueber die aktuellen Entwicklungen in 2014 geben. Das Jahr 2014 war gepraegt von dem energiewirtschaftlichen Programm des Koalitionsvertrags, das unter dem Zieldreieck aus Versorgungssicherheit, Preisguenstigkeit und Umweltvertraeglichkeit klare Vorgaben fuer die Erzeugerseite vor allem mit Blick auf den endgueltigen Atomausstieg, die angekuendigte Novellierung des EEG, Systemstabilitaet und auch Fracking gemacht hat. Das vorherrschende Thema im Jahr 2014 war hierbei sicherlich die Reform des EEG sowie die sich darum rankenden Themen auf

  5. CERN: 500 Millionen fuer neuen Teilchenbeschleuniger

    CERN Multimedia

    2002-01-01

    "Die 20 Mitgliederlaender des Europaeischen Labors fuer Teilchenphysik in Genf CERN haben einen Sparplan zur Finanzierung eines neuen Teilchenbeschleunigers gut geheissen. Rund 500Millionen Franken sollen zu diesem Zweck uminvestiert werden" (1/2 page).

  6. Landbrugets trædemølle

    DEFF Research Database (Denmark)

    Hansen, Henning Otte

    2016-01-01

    Teorien om landbrugets trædemølle siger, at teknologi medfører stigende produktivitet, stigende udbud og dermed faldende priser. Dermed øges behovet for ny teknologi. Det vedvarende teknologipres gavner de innovative landmænd, mens de mere afventende landmænd kun oplever de negative virkninger i...... form af prisfald. I denne artikel beskrives nærmere de enkelte elementer i trædemøllen. Samtidig vurderes trædemøllens betydning og mulige påvirkning. Det konkluderes, at trædemøllen, dens forudsætninger og afledte virkninger stadig er fuldt gældende. Det er ikke muligt for et enkelt land eller region...... af bremse trædemøllen på lang sigt. På lokalt plan kan man løse nogle sociale og økonomiske problemer skabt af trædemøllen gennem nemmere afvandring....

  7. Gesellschaft fuer Anlagen- und Reaktorsicherheit (GRS). Annual report 2010/2011

    International Nuclear Information System (INIS)

    2011-01-01

    The annual report 2010/11 of the Gesellschaft fuer Anlagen- und Reaktorsicherheit (GRS) covers the following topics: organization, corporate development and public relations; reactor accident in Fukushima; Projects and work priorities (reactor safety; waste management; radiation and environmental protection; international projects); project management and project support; equity participations and subsidiaries (RISKAUDIT IRSN/GRS International; institute for safety technologies (ISTec), European Nuclear Safety Training and Tutoring Institute (ENSTTI)).

  8. A photogrammetric DEM of Greenland based on 1978-1987 aerial photos: validation and integration with laser altimetry and satellite-derived DEMs

    DEFF Research Database (Denmark)

    Korsgaard, Niels Jákup; Kjær, Kurt H.; Nuth, Christopher

    Here we present a DEM of Greenland covering all ice-free terrain and the margins of the GrIS and local glaciers and ice caps. The DEM is based on the 3534 photos used in the aero-triangulation which were recorded by the Danish Geodata Agency (then the Geodetic Institute) in survey campaigns...... spanning the period 1978-1987. The GrIS is covered tens of kilometers into the interior due to the large footprints of the photos (30 x 30 km) and control provided by the aero-triangulation. Thus, the data are ideal for providing information for analysis of ice marginal elevation change and also control...

  9. Multi utility - a successful conception for energy supply companies?; Multi-Utility - Erfolgskonzept fuer Energieversorger? Zusammenwachsen der Maerkte

    Energy Technology Data Exchange (ETDEWEB)

    Schmidt, C. [LBD-Beratungsgesellschaft mbH, Berlin (Germany)

    2003-06-02

    Multi-utility is seen as the most promising marketing strategy for energy companies. In the future, experts say, only the combined supply of electricity, natural gas, water, waste management and services will allow companies to grow. But are today's multi-utility-products answering the needs of the customers? The author goes further into this question and finds the answer: Multi-utility needs to be further developed. Only products from growth and competition markets can generate additional margins. (orig.) [German] Multi-Utility gilt als die Marketingstrategie fuer Energieversorger. Nur wer zukuenftig Strom, Gas, Wasser, Entsorgung und Service aus einer Hand anbietet, heisst es in der Branche, kann im Markt wachsen. Doch inwieweit entspricht das heutige Multi-Utility-Angebot wirklich dem Kundenbeduerfnis? Die Verfasserin geht dieser Frage nach und kommt zu dem Schluss: Die Multi-Utility-Palette muss weiterentwickelt werden. Nur mit Produkten aus Wachstums- und Wettbewerbsmaerkten kann zusaetzliche Marge generiert werden. (orig.)

  10. Technology for the future; Technik fuer die Zukunft

    Energy Technology Data Exchange (ETDEWEB)

    Dennenmoser, Martin; Steininger, Sebastian [Fraunhofer Institut fuer Solare Energiesysteme ISE, Freiburg im Breisgau (Germany). Electrical Energy Systems (EES)

    2013-10-15

    The presented case study by the Fraunhofer Institute ISE shows that the market for stationary electrochemical storage prices are currently too high for economical operation. In winter, a battery in Germany is not always fully loaded because of low sunlight. Therefore, the combination of a battery with a PV system at this time of year does not have enough full cycles to be economical. For more complete cycles of the year and consequently lower specific storage cost wind turbines or other power generators can be connected. Since - in contrast to lead acid batteries - there is no experience with long-term storage in lithium and redox flow batteries, this study is based on current forecasts. Compared to lithium-ion batteries, lead-acid and redox flow batteries have a lower efficiency, so that the investment costs of the battery must be lower because fewer savings can be achieved. Especially for short-term storage, the production costs must be reduced. The cost reduction potential of redox flow and lithium-ion batteries is due to the current technical state of development compared to lead acid batteries very high. This means that an economic operation in the future is possible with constant development of electricity and battery prices. [German] Die vorgestellte Fallstudie des Fraunhofer Instituts ISE zeigt, dass die Marktpreise fuer stationaere elektrochemische Speicher aktuell fuer einen wirtschaftlichen Betrieb zu hoch sind. Im Winter wird eine Batterie in Deutschland aufgrund der niedrigen Sonneneinstrahlung nicht immer komplett geladen. Daher hat die Kombination eines Speichers mit einer PV-Anlage zu dieser Jahreszeit nicht genug Vollzyklen, um wirtschaftlich zu sein. Fuer mehr Vollzyklen im Jahr und demzufolge geringere spezifische Speicherkosten koennen Windkraftanlagen oder andere Stromerzeuger angeschlossen werden. Da es- im Gegensatz zu Bleisaeure- Batterien - noch keine Erfahrung mit Langzeitspeichern im Bereich Lithium und Redox-Flow gibt, beruht diese

  11. Applied chemistry and environmental engineering for engineers. Manual for students and practicians. 2. ed.; Angewandte Chemie und Umwelttechnik fuer Ingenieure. Handbuch fuer Studium und betriebliche Praxis

    Energy Technology Data Exchange (ETDEWEB)

    Fessmann, J.; Orth, H.

    2002-07-01

    This is a practically oriented textbook for chemistry and environmental protection training of students of mechanical engineering, vehicle engineering, electrical engineering, space HVAc engineering etc. Students are also given useful information on the practical applications of chemistry and on environmental protection in industrial practice. The book also contains problem solutions for managing engineers in organizations of the metal and electrical branch who are confronted with chemical problems in chemical engineering, quality assurance, industrial safety and environmental protection. [German] Das Handbuch vermittelt in konzentrierter Form die Grundlagen der Chemie und Umwelttechnik und schlaegt rasch die Bruecke zur industriellen Anwendung bevorzugt in der Metall- und Elektroindustrie. Das Handbuch ist ein praxisorientiertes Lehrbuch fuer die Chemie- und Umweltschutzausbildung von Ingenieurstudenten der Fachrichtungen Maschinenbau, Fahrzeugtechnik, Elektrotechnik, Versorgungstechnik u.a. Darueberhinaus finden Schueler von Chemieleistungskursen an Gymnasien oder Chemiestudenten an Fachhochschulen oder Universitaeten viele nuetzliche Informationen ueber die Anwendungen von Chemie und Umweltschutz in der industriellen Praxis. Nicht zuletzt enthaelt das Buch Problemloesungen fuer Betriebsingenieure, insbesondere aus dem Bereich der Metall- und Elektrobranche, die mit chemischen Fragestellungen in der Verfahrenstechnik, Qualitaetssicherung oder Arbeits-/Umweltschutzueberwachung konfrontiert sind. (orig.)

  12. Reirradiation of recurrent node-positive non-small cell lung cancer after previous stereotactic radiotherapy for stage I disease. A multi-institutional treatment recommendation

    Energy Technology Data Exchange (ETDEWEB)

    Nieder, Carsten [Nordland Hospital, Department of Oncology and Palliative Medicine, Bodoe (Norway); University of Tromsoe, Institute of Clinical Medicine, Faculty of Health Sciences, Tromsoe (Norway); Ruysscher, Dirk de [MAASTRO Clinic, Department of Radiation Oncology, Maastricht (Netherlands); Gaspar, Laurie E. [University of Colorado School of Medicine, Department of Radiation Oncology, Aurora, CO (United States); Guckenberger, Matthias [University Hospital Zurich, Department of Radiation Oncology, Zurich (Switzerland); Mehta, Minesh P. [Miami Cancer Institute, Department of Radiation Oncology, Miami, FL (United States); Cheung, Patrick; Sahgal, Arjun [Sunnybrook Health Sciences Centre and University of Toronto, Department of Radiation Oncology, Toronto (Canada)

    2017-07-15

    . Dennoch erfordern einige klinische Situationen individuelle Entscheidungen. Dazu gehoert ein lokoregionales Rezidiv nach stereotaktischer Strahlentherapie (SABR), einer Modalitaet, die immer oefter im Stadium I angewandt wird. Eine Expertengruppe wurde etabliert, um Empfehlungen zur Rezidivbehandlung zu erarbeiten. Insgesamt 6 Radioonkologen brachten die Behandlungsempfehlungen ihrer Institution ein. In dem Fall entwickelte ein Patient ein Lokal- und Mediastinalrezidiv nach SABR (45 Gy, 3 Fraktionen), vergleichbar mit der Ausbreitung beim De-novo-NSCLC im Stadium IIIA. Empfehlungen wurden in Tabellen verglichen und ein Konsensus wurde ausgearbeitet. Drei Institutionen empfahlen eine chirurgische Konsultation. Kam eine Operation nicht infrage oder wurde vom Patienten abgelehnt, empfahlen sie eine definitive Radiochemotherapie, einschliesslich einer erneuten Behandlung des Primaertumors mit der vollen Dosis. Europaeische Teilnehmer bevorzugten eine konservative Therapie. Keiner der Teilnehmer war zurueckhaltend, eine Rebestrahlung zu verschreiben, aber zwei Institutionen waehlten Gesamtdosen <60 Gy. Platinbasierte Kombinationen mit intensitaetsmodulierter Strahlentherapie wurden bevorzugt. Die Empfehlungen der beteiligten Zentren reflektieren die Kontroversen und Unsicherheiten der aktuellen Leitlinien fuer das Stadium III. Alle Institutionen waren einig, dass eine initiale SABR keine Kontraindikation fuer eine Salvage-Radiochemotherapie darstellt. Solange keine prospektiven Daten fuer rezidivierte NSCLC vorliegen, koennen in klinischen Szenarien, wie dem hier geschilderten, alle Behandlungsoptionen der Leitlinien fuer das Stadium III erwogen werden. (orig.)

  13. Driver assistance - Firstly a contribution to primary safety or rather to comfort?; Fahrerassistenz primaer zum Komfort oder fuer die Sicherheit?

    Energy Technology Data Exchange (ETDEWEB)

    Bubb, H. [TU Muenchen, Garching (Germany). Lehrstuhl fuer Ergonomie

    2003-07-01

    Vertrauen in neue Assistenzsysteme ist deshalb das subjektive Erleben von Assistenzsystemen. Werden sie eher als ein Komfortgewinn, wie es der Hersteller primaer aus produkthaftungstechnischen Gruenden gerne moechte, oder als eine Entlastung im Hinblick auf das eigene notwendige sichernde Verhalten erlebt? Besteht dann gerade in der zuletzt genannten Tendenz eine neue Gefahr? Nicht unerwaehnt darf in diesem Zusammenhang die juristische Problematik bleiben. Fuer Vorgaenge, auf die der Fahrer tatsaechlich oder vermeintlich keinen Einfluss hat, die also fuer ihn quasi selbsttaetig ablaufen, kann er nicht oder nur eingeschraenkt zur Verantwortung gezogen werden. Die Haftung fuer den nicht kompensierten Schaden wird dann dem Hersteller des betreffenden Systems zugeschrieben. Durch an den Eigenschaften und Faehigkeiten des Menschen orientierte Bedienung von neuartigen Assistenzsystemen kann somit unerwuenschten juristischen Folgen weitgehend vorgebeugt werden. (orig.)

  14. Feasibility study for new ecolabels for the product group: Wood pellet firings. Final report; Machbarkeitsstudie fuer neue Umweltzeichen fuer die Produktgruppe: Holzpelletfeuerungen. Endbericht

    Energy Technology Data Exchange (ETDEWEB)

    Hoffmann, E.; Weiss, J.; Hirschl, B.

    2002-07-01

    gerechtfertigt ist, und welche Anforderungen diese im Vergabefall erfuellen sollten. Im Rahmen der Untersuchung wurde zunaechst eine umfassende Marktanalyse durchgefuehrt, um daraus die Anlagen zu identifizieren, die fuer ein Umweltzeichen in Frage kommen. Im Hauptteil der Studie erfolgte eine vertiefende Analyse der Umweltrelevanz der ausgewaehlten Anlagen. Hierzu wurde eine Herstellerbefragung durchgefuehrt und ein Systemvergleich mit Gas- und Oelheizkesseln sowie mit herkoemmlichen Holzfeuerungen auf Holzhackschnitzel- und Scheitholzbasis vorgenommen. Auf der Basis dieser Analyse wurden Vorschlaege fuer Vergabegrundlagen fuer Holzpelletheizkessel und Holzpelletraumheizer abgeleitet, die in einem Fachgespraech in einer breiten Runde von Experten und Herstellern vorgestellt und diskutiert wurden. Aus der Studie und dem Fachgespraech konnte ein deutliches Votum fuer die Umweltzeichen fuer die untersuchten Holzpelletfeuerungen abgeleitet werden. Holzpelletfeuerungen zeichnen sich durch ihren hohen Automatisierungsgrad und den Einsatz eines genormten Brennstoffes mit gleichbleibender hoher Qualitaet aus. Dadurch erreichen sie zum einen eine hohe Verbrennungsguete mit sehr geringen Emissionen, zum anderen werden Fehler durch unsachgemaesse Bedienung minimiert. Sie koennen zudem einen wichtigen Beitrag zur verstaerkten Nutzung erneuerbarer Energien leisten und so zur Erreichung der Klimaschutzziele beitragen. Die vorgeschlagenen Vergabegrundlagen umfassen Anforderungen an rationelle Energienutzung (Wirkungsgrad bei Nennlast und Teillast, Hilfsstrombedarf), Emissionswerte von CO, NO{sub x}, Staub und organischen Stoffen, Angebot von Dienstleistungen sowie Anforderungen an die Bedienungsanleitung. Als moegliche Umschrift eines Zeichens fuer Holzpelletfeuerungen wird empfohlen: 'Umweltzeichen... weil emissionsarm und energieeffizient'. (orig.)

  15. Feasibility study for new ecolabels according to ISO 14024 (type 1) within the product group: wood pellet heating systems; Machbarkeitsstudie fuer neue Umweltzeichen fuer die Produktgruppe: Holzpelletfeuerungen

    Energy Technology Data Exchange (ETDEWEB)

    Hoffmann, E.; Weiss, J.; Hirschl, B. [Institut fuer Oekologische Wirtschaftsforschung (IOEW) gGmbH, Berlin (Germany)

    2003-01-01

    gerechtfertigt ist, und welche Anforderungen diese im Vergabefall erfuellen sollten. Im Rahmen der Untersuchung wurde zunaechst eine umfassende Marktanalyse durchgefuehrt, um daraus die Anlagen zu identifizieren, die fuer ein Umweltzeichen in Frage kommen. Im Hauptteil der Studie erfolgte eine vertiefende Analyse der Umweltrelevanz der ausgewaehlten Anlagen. Hierzu wurde eine Herstellerbefragung durchgefuehrt und ein Systemvergleich mit Gas- und Oelheizkesseln sowie mit herkoemmlichen Holzfeuerungen auf Holzhackschnitzel- und Scheitholzbasis vorgenommen. Auf der Basis dieser Analyse wurden Vorschlaege fuer Vergabegrundlagen fuer Holzpelletheizkessel und Holzpelletraumheizer abgeleitet, die in einem Fachgespraech in einer breiten Runde von Experten und Herstellern vorgestellt und diskutiert wurden. Aus der Studie und dem Fachgespraech konnte ein deutliches Votum fuer ein Umweltzeichen fuer die untersuchten Holzpelletfeuerungen abgeleitet werden. Holzpelletfeuerungen zeichnen sich durch ihren hohen Automatisierungsgrad und den Einsatz eines genormten Brennstoffes mit gleichbleibender hoher Qualitaet aus. Dadurch erreichen sie zum einen eine hohe Verbrennungsguete mit sehr geringen Emissionen, zum anderen werden Fehler durch unsachgemaesse Bedienung minimiert. Sie koennen zudem einen wichtigen Beitrag zur verstaerkten Nutzung erneuerbarer Energien leisten und so zur Erreichung der Klimaschutzziele beitragen. Die vorgeschlagenen Vergabegrundlagen umfassen Anforderungen an rationelle Energienutzung (Wirkungsgrad bei Nennlast und Teillast, Hilfsstrombedarf), Emissionswerte von CO, NO{sub x}, Staub und organischen Stoffen, Angebot von Dienstleistungen sowie Anforderungen an die Bedienungsanleitung. Als moegliche Umschrift eines Zeichens fuer Holzpelletfeuerungen wird empfohlen: 'Umweltzeichen... weil emissionsarm und energieeffizient'. (orig.)

  16. Sustainable development - theory and practice of environmental consulting. Proceedings of a seminar of Zentrale Informationsstelle Umweltberatung Bayern. Vol. 11; Nachhaltige Entwicklung - Theorie und Praxis fuer die Umweltberatung. Seminarband der Zentralen Informationsstelle Umweltberatung Bayern. Bd. 11

    Energy Technology Data Exchange (ETDEWEB)

    Koller, U.; Behling, G.; Klemmer, A.; Haury, H.J. [comps.

    1998-12-31

    On 25/26 November, 1997, Zentrale Informationsstelle, Umweltberatung Bayern held its 11th seminar under the title ``Sustainable development - theory and practice of environmental consulting. Subjects related to the Agenda 21 were discussed in lectures and workshops. [Deutsch] Am 25. und 26. November 1997 veranstaltete die Zentrale Informationsstelle, Umweltberatung Bayern ihr elftes Seminar mit dem Thema ``Nachhaltige Entwicklung- Theorie und Praxis fuer die Umweltberatung``. In Fachvortraegen und Workshops wurden Themen zur Agenda 21 behandelt. (ABI)

  17. Radiation protection and communication of information. 21. Annual meeting of the French association ATSR; Strahlenschutz und Kommunikation. 21. Jahrestagung der franzoesischen Vereinigung fuer Technik und Wissenschaft im Strahlenschutz (ATSR)

    Energy Technology Data Exchange (ETDEWEB)

    Hoefert, M. [CERN, Geneva (Switzerland)

    2001-07-01

    The conference report presents a brief summary of papers and discussion topics. (orig./CB) [German] Die 21. Jahrestagung der ATSR fand dieses Jahr unter dem Motto 'Strahlenschutz und Kommunikation' im herbstlich sonnigen Aix en Provence statt. Die ATSR ist neben der Franzoesischen Gesellschaft fuer Strahlenschutz (SFR) eine zweite Standesorganisation, in der sich praktisch arbeitende Strahlenschutzverantwortliche in Frankreich organisiert haben. (orig.)

  18. Large Scale Landform Mapping Using Lidar DEM

    Directory of Open Access Journals (Sweden)

    Türkay Gökgöz

    2015-08-01

    Full Text Available In this study, LIDAR DEM data was used to obtain a primary landform map in accordance with a well-known methodology. This primary landform map was generalized using the Focal Statistics tool (Majority, considering the minimum area condition in cartographic generalization in order to obtain landform maps at 1:1000 and 1:5000 scales. Both the primary and the generalized landform maps were verified visually with hillshaded DEM and an orthophoto. As a result, these maps provide satisfactory visuals of the landforms. In order to show the effect of generalization, the area of each landform in both the primary and the generalized maps was computed. Consequently, landform maps at large scales could be obtained with the proposed methodology, including generalization using LIDAR DEM.

  19. A teststand for photo detectors and beamtests for ILC polarimetry; Aufbau eines Teststandes fuer Photodetektoren und Teststrahlmessungen fuer die Strahlpolarisationsmessung am ILC

    Energy Technology Data Exchange (ETDEWEB)

    Velte, Ulrich

    2009-02-15

    -Lichts charakterisiert und auf ihre Eignung fuer die spezielle Anwendung im ILC-Polarimeter ueberprueft werden koennen. Die bislang beste Polarisationsmessung wurde im Rahmen des SLD-Experimentes am SLAC in Kalifornien erreicht ({delta}P/P{approx}0.5%). Zur Zeit befindet sich der Cerenkov-Detektor des SLD-Polarimeters am DESY und wird dort benutzt, um verschiedene fuer die ILC-Polarimetrie in Frage kommende Photodetektoren im Teststrahl zu vermessen. Um an die Erfahrungen aus dem SLD-Experiment anknuepfen zu koennen, werden im Rahmen dieser Arbeit Teststrahlmessungen am Cerenkov-Detektor, ausgewertet und die ersten Entwicklungen hin zu einem Polarimeter fuer den ILC beschrieben. (orig.)

  20. Kinematic behaviour of a large earthflow defined by surface displacement monitoring, DEM differencing, and ERT imaging

    Czech Academy of Sciences Publication Activity Database

    Prokešová, R.; Kardoš, M.; Tábořík, Petr; Medveďová, A.; Stacke, V.; Chudý, F.

    2014-01-01

    Roč. 224, NOV 1 (2014), s. 86-101 ISSN 0169-555X R&D Projects: GA MŠk LM2010008 Institutional support: RVO:67985891 Keywords : earthflow * surface displacement * strain modelling * DEM differencing * kinematic behaviour Subject RIV: DE - Earth Magnetism, Geodesy, Geography Impact factor: 2.577, year: 2013

  1. Power plants at the bottom of the sea; Kraftwerke auf dem Meeresgrund

    Energy Technology Data Exchange (ETDEWEB)

    Wilhelm, Klaus

    2011-07-01

    The depths of the ocean are a hostile environment. In a bid to defy these adverse conditions, many organisms have teamed up to form close relationships called symbioses. Nicole Dubilier and her colleagues at the Max Planck Institute for Marine Microbiology in Bremen keep discovering new symbioses that provide these deep-sea inhabitants with a guaranteed energy supply. (orig.) [German] Die Tiefen der Ozeane sind ein lebensfeindlicher Ort. Um den widrigen Bedingungen zu trotzen, haben sich viele Organismen zu Lebensgemeinschaften zusammengeschlossen. Nicole Dubilier und ihre Mitarbeiter am Max-Planck-Institut fuer marine Mikrobiologie in Bremen entdecken immer wieder neue Symbiosen, mit denen die Tiefseebewohner ihre Energieversorgung sicherstellen.

  2. Lead-free sliding overplate for highly loaded big end bearings; Bleifreie Laufschicht fuer hochbelastete Haupt- und Pleuellager

    Energy Technology Data Exchange (ETDEWEB)

    Graham, N.; Schnell, L.; Arnold, G. [Federal-Mogul Wiesbaden GmbH and Co. KG (Germany)

    2003-10-01

    Lead has always been an important metal in plain bearing technology. Completely lead-free solutions for high-end engine applications are still not considered to be technically achievable. Therefore, the European End of Life Directive (2000/53/EC), which took effect on 1 July 2003, lists copper-based lead/bronze bearings as an exception. The bearing group of Federal-Mogul has now announced its exit from the lead industry and addresses the issue layer by layer. A recently introduced adaptive bearing offers a lead-free overplate for high-performance internal combustion engine applications. This new bearing changes its technical characteristics during the running-in phase. (orig.) [German] Blei war schon immer eine wichtige Komponente in der Gleitlagertechnik. Bis heute gelten vollstaendig bleifreie Loesungen fuer hochbelastete Gleitlager als technisch nicht machbar. Deshalb nennt die europaeische Altautoverordnung (2000/53/EG), die seit dem 1. Juli 2003 in Kraft ist, als Ausnahme die kupferbasierten Bleibronzelager. Die Gleitlagergruppe von Federal-Mogul hat jetzt ihren Rueckzug aus der Verarbeitung von Blei angekuendigt und geht das Thema Schicht fuer Schicht an. Ein kuerzlich eingefuehrtes, anpassungsfaehiges Lager fuer High-End-Verbrennungsmotoren verfuegt ueber eine bleifreie Laufschicht. Bei diesem neuen Lager veraendern sich die technischen Eigenschaften waehrend der Einlaufphase. (orig.)

  3. Combined expander-compressor for carbon dioxide in free piston design; Kombinierte Expansions-Kompressions-Maschine fuer Kohlendioxid in Freikolbenbauweise

    Energy Technology Data Exchange (ETDEWEB)

    Heyl, P.; Quack, H. [TU, Dresden (Germany). Lehrstuhl fuer Kaelte- und Kryotechnik; Kuehne, M. [TU, Dresden (Germany). Lehrstuhl fuer Pumpen, Verdichter und Apparate

    2000-03-01

    The renaissance of carbon dioxide in refrigeration engineering is impressive. The contribution shows that the disadvantages of this refrigerating fluid can be compensated by modifying the refrigeration circuit. A combined expander-compressor working by the free piston principle and developed at Dresden Technical University is described. [German] Kohlendioxid erlebt im Bereich der Kaeltetechnik infolge der schwierigen Suche nach umweltvertraeglichen Ersatzkaeltemitteln fuer die Fluorchlorkohlenwasserstoffe eine beeindruckende Renaissance. Es soll anhand thermodynamischer Prozessberechnungen gezeigt werden, dass durch die Modifikation des Kreisprozesses unter Beachtung der besonderen thermodynamischen Eigenschaften des Kohlendioxids diese Nachteile bereits bei der theoretischen Leistungszahl ausgeglichen werden koennen. Dafuer wird das Kohlendioxid in einem Prozess mit zweistufiger Verdichtung arbeitsleistend entspannt. Die Besonderheit dieses Prozesses ist die Verwendung einer speziell fuer diesen Anwendungsfall entwickelten Maschine, die die gewonnene Expansionsarbeit direkt fuer die Verdichtung des Kohlendioxids in der zweiten Verdichtungsstufe nutzt. Es handelt sich dabei um eine nach dem Freikolbenprinzip arbeitende Expansions-Kompressions-Maschine, die an der TU Dresden entwickelt und gegenwaertig getestet wird. (orig.)

  4. Artificial intelligence for automotive applications - noise modelling; Kuenstliche Intelligenz fuer Fahrzeuganwendungen - Modellierung des Motorgeraeusches

    Energy Technology Data Exchange (ETDEWEB)

    Suchar, R. [nodes GmbH, Muenchen (Germany)

    2000-12-01

    Reducing the noise level in the interior of vehicles is both a comfort necessity and a challenging technical task. Reliable identification of the accessories responsible for high or low engine-noise levels in the interior of cars classically requires costly, time-consuming, extensive measurement sessions. Artificial intelligence tools efficiently solve the mentioned system-identification problem, and provide a principled way of extracting the information of interest from reduced size databases. (orig.) [German] Kuenstliche neuronale Netze, Fuzzy-Systeme, genetische Algorithmen - vor einem Jahrzehnt haette man gesagt, diese Begriffe stammen aus einem Science-Fiction-Roman. Heute verwenden sie Forscher an Hochschulen und in der Industrie mit dem gemeinsamen Ziel, kuenstliche Intelligenz (KI) in Real-Life-Projekte zu integrieren. Waehrend das Spektrum technischer Applikationen und kommerzieller Produkte sehr weit ist, konzentriert sich der vorliegende Beitrag auf eine spezielle Fahrzeuganwendung, die auf kuenstlichen neuronalen Netzen (KNN) basiert: die Ermittlung der Ausstattungsmerkmale, die fuer hohen Motorgeraeuschpegel im Fahrzeuginneren verantwortlich sind. (orig.)

  5. S1-Leitlinie Lipödem.

    Science.gov (United States)

    Reich-Schupke, Stefanie; Schmeller, Wilfried; Brauer, Wolfgang Justus; Cornely, Manuel E; Faerber, Gabriele; Ludwig, Malte; Lulay, Gerd; Miller, Anya; Rapprich, Stefan; Richter, Dirk Frank; Schacht, Vivien; Schrader, Klaus; Stücker, Markus; Ure, Christian

    2017-07-01

    Die vorliegende überarbeitete Leitlinie zum Lipödem wurde unter der Federführung der Deutschen Gesellschaft für Phlebologie (DGP) erstellt und finanziert. Die Inhalte beruhen auf einer systematischen Literaturrecherche und dem Konsens von acht medizinischen Fachgesellschaften und Berufsverbänden. Die Leitlinie beinhaltet Empfehlungen zu Diagnostik und Therapie des Lipödems. Die Diagnose ist dabei auf der Basis von Anamnese und klinischem Befund zu stellen. Charakteristisch ist eine umschriebene, symmetrisch lokalisierte Vermehrung des Unterhautfettgewebes an den Extremitäten mit deutlicher Disproportion zum Stamm. Zusätzlich finden sich Ödeme, Hämatomneigung und eine gesteigerte Schmerzhaftigkeit der betroffenen Körperabschnitte. Weitere apparative Untersuchungen sind bisher besonderen Fragestellungen vorbehalten. Die Erkrankung ist chronisch progredient mit individuell unterschiedlichem und nicht vorhersehbarem Verlauf. Die Therapie besteht aus vier Säulen, die individuell kombiniert und an das aktuelle Beschwerdebild angepasst werden sollten: komplexe physikalische Entstauungstherapie (manuelle Lymphdrainage, Kompressionstherapie, Bewegungstherapie, Hautpflege), Liposuktion und plastisch-chirurgische Interventionen, Ernährung und körperliche Aktivität sowie ggf. additive Psychotherapie. Operative Maßnahmen sind insbesondere dann angezeigt, wenn trotz konsequent durchgeführter konservativer Therapie noch Beschwerden bestehen bzw. eine Progredienz des Befundes und/oder der Beschwerden auftritt. Eine begleitend zum Lipödem bestehende morbide Adipositas sollte vor einer Liposuktion therapeutisch angegangen werden. © 2017 The Authors | Journal compilation © Blackwell Verlag GmbH, Berlin.

  6. Selection of procedures for inservice inspections; Auswahl der Verfahren fuer wiederkehrende Pruefungen

    Energy Technology Data Exchange (ETDEWEB)

    Brast, G [Preussische Elektrizitaets-AG (Preussenelektra), Hannover (Germany); Britz, A [Bayernwerk AG, Muenchen (Germany); Maier, H J [Stuttgart Univ. (Germany). Staatliche Materialpruefungsanstalt; Seidenkranz, T [TUEV Energie- und Systemtechnik GmbH, Mannheim (Germany)

    1998-11-01

    At present, selection of procedures for inservice inspection has to take into account the legal basis, i.e. the existing regulatory codes, and the practical aspects, i.e. experience and information obtained by the general, initial inservice inspection or performance data obtained by the latest, recurrent inspection. However, regulatory codes are being reviewed to a certain extent in order to permit integration of technological progress. Depending on the degree of availability in future, of inspection task-specific, sensitive and qualified NDE techniques for inservice inspections (`risk based ISI`), the framework of defined inspection intervals, sites, and detection limits will be broken up and altered in response to progress made. This opens up new opportunities for an optimization of inservice inspections for proof of component integrity. (orig./CB) [Deutsch] Zur Zeit muss sich die Auswahl der Pruefverfahren an den gueltigen Regelwerken und, da es sich um wiederkehrende Pruefungen handelt, an der Basispruefung bzw. der letzten wiederkehrenden Pruefung orientieren. Jedoch vollzieht sich zur Zeit eine Oeffnung der Regelwerke, mit der man auch der Weiterentwicklung der Prueftechniken Rechnung traegt. In dem Masse, wie zukuenftig auf die Pruefaufgabe/Pruefaussage optimal abgestimmte und qualifizierte Prueftechniken mit einer hohen Nachweisempfindlichkeit am Bauteil fuer zielgerichtete wiederkehrende Pruefungen (als `risk based ISI`) zur Verfuegung stehen, wird der Rahmen mit festgelegten Pruefintervallen, Prueforten und festen Registriergrenzen gesprengt und variabel gestaltet werden koennen. Damit ergeben sich neue Moeglichkeiten fuer eine Optimierung der WKP zum Nachweis der Integritaet des Bauteils. (orig./MM)

  7. Research for energy efficiency; Forschung fuer Energieeffizienz

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2010-09-15

    The Federal Ministry of Economy enhanced its funding for research in the field of non-nuclear energy in the programme ''Forschung fuer Energieeffizienz'' (Research for Energy Efficiency). The programme focuses on established areas like modern power plant technologies (''Moderne Kraftwerkstechnologien''), fuel cells and hydrogen (''Brennstoffzelle, Wasserstoff''), and energy-optimized building construction (''Energieoptimiertes Bauen''). New subjects are energy-efficient towns and cities (''Energieeffiziente Stadt''), power grids for future power supply (''Netze fuer die Stromversorgung der Zukunft''), power storage (''Stromspeicher''), and electromobility (''Elektromobilitaet''). The brochure presents research and demonstration projects that illustrate the situation in 2010 when the programme was initiated. (orig.)

  8. Basic methodology of tomographic imaging by filtered inverse projection at a turbo-pump. Project report; Methodische Grundlagen fuer die Tomographie durch gefilterte Rueckprojektion an einer Axialpumpe. Projektbericht

    Energy Technology Data Exchange (ETDEWEB)

    Hoppe, D.

    2000-11-01

    A two-phase medium consisting of a fluid containing gas is transported in a turbo-pump via an impeller. The interaction between the gaseous phase and the impeller is to be examined by tomography with gamma rays. Reconstruction of the image of the object is to be made by way of filtered inverse projection. The methodology of using this principle in the given system (geometry and measuring conditions) is explained. (orig./CB) [German] Ein zweiphasiges, aus einer gashaltigen Fluessigkeit bestehendes Medium wird in einer Axialpumpe von einem propellerartigen Laufrad senkrecht zur Drehachse dieses Laufrades transportiert. Die Wechselwirkung zwischen der Gasphase und dem Laufrad soll unter Verwendung von Gamma-Strahlung mittels Tomographie untersucht werden. Dabei ist fuer die Rekonstruktion des Objektbildes das Prinzip der sogenannten gefilterten Rueckprojektion vorgesehen. Die methodischen Grundlagen fuer die Nutzung dieses Prinzips unter von vorgesehenen geometrischen und messtechnischen Bedingungen sind Gegenstand dieser Arbeit. (orig.)

  9. ASTER Orthorectified Digital Elevation Model (DEM) V003

    Data.gov (United States)

    National Aeronautics and Space Administration — The ASTER L3 DEM and Orthorectified Images form a multi-file product that contains both the Digital Elevation Model (DEM), and the Orthorectified Image products....

  10. Macromolecular contrast media. A new approach for characterising breast tumors with MR-mammography; Makromolekulare Kontrastmittel fuer die MR-Mammographie. Ein neuer Ansatz fuer die Charakterisierung von Mammatumoren

    Energy Technology Data Exchange (ETDEWEB)

    Daldrup, H.E. [Contrast Media Lab., Dept. of Radiology, California Univ., San Francisco, CA (United States)]|[Muenster Univ. (Germany). Inst. fuer Klinische Radiologie; Roberts, T.P.L.; Roberts, H.C. [Contrast Media Lab., Dept. of Radiology, California Univ., San Francisco, CA (United States)]|[Mainz Univ. (Germany). Klinik und Poliklinik fuer Radiologie; Muehler, A. [Contrast Media Lab., Dept. of Radiology, California Univ., San Francisco, CA (United States)]|[Berlex Laboratories, Wayne, NJ (United States); Gossmann, A. [Contrast Media Lab., Dept. of Radiology, California Univ., San Francisco, CA (United States)]|[Koeln Univ. (Germany). Inst. und Poliklinik fuer Radiologische Diagnostik; Wendland, M.; Brasch, R.C. [Muenster Univ. (Germany). Inst. fuer Klinische Radiologie; Rosenau, W. [California Univ., San Francisco, CA (United States). Dept. of Pathology

    1997-09-01

    The value of macromolecular contrast agents (MMCM) for the characterization of benign and malignant breast tumors will be demonstrated in this review. Animal studies suggest a high potential of MMCM to increase the specificity of MR-mammography. The concept of tumor differentiation is based on the pathological hyperpermeability of microvessels in malignant tumors. MMCM show a leak into the interstitium of carcinomas, whereas they are confined to the intravascular space in benign tumors. Capabilities and limitations of the MMCM-prototype. Albumin-Gd-DTPA, for breast tumor characterization will be summarized and compared to the standard low molecular weight contrast agent Gd-DTPA. Initial experience with new MMCM, such as Dendrimers, Gd-DTPA-Polylysine and MS-325 will be outlined. The potential of `blood-pool`-iron oxides, such as AMI-227 for the evaluation of tumor microvascular permeabilities will be discussed. (orig.) [Deutsch] Diese Uebersicht stellt den Stellenwert makromolekularer Kontrastmittel (MMKM) fuer die MR-tomographische Charakterisierung von benignen und malignen Mammatumoren dar. Aufgrund experimenteller Studien lassen MMKM eine signifikante Verbesserung der Spezifitaet der dynamischen kontrastmittelunterstuetzten MR-Mammographie erwarten. Das differentialdiagnostische Konzept beruht auf der pathologischen Hyperpermeabilitaet von Kapillaren in Karzinomen, die einen MMKM-Austritt in das Tumorinterstitium bedingt, waehrend die intakten Kapillaren benigner Tumoren nicht permeabel fuer MMKM sind. Diagnostische Moeglichkeiten und Grenzen des MMKM-Prototyps, Albumin-Gd-DTPA (92 kD), werden dargestellt und mit dem niedermolekularen Standard-Kontrastmittel Gd-DTPA (500 D) verglichen. Erste Erfahrungen mit neuen, fuer die klinische Anwendung optimierten MMKM-Praeparaten, wie das Kaskadenpolymer, Gd-DTPA-Polylysine und das MS-325 werden vorgestellt. Das Potential von Blood-pool-Eisenoxidpraeparaten, z.B. AMI-227, fuer die Bestimmung von

  11. Energy revolution for Africa; Energierevolution fuer Afrika

    Energy Technology Data Exchange (ETDEWEB)

    Gies, Erica

    2017-07-01

    Decreasing energy costs from renewable sources could enable many African countries to make the leap into a clean future. This would save the continent the detour via the classic dirty sources. [German] Sinkende Kosten fuer Energie aus erneuerbaren Quellen koennten vielen afrikanischen Laendern den Sprung in eine saubere Zukunft ermoeglichen. Damit wuerde sich der Kontinent den Umweg ueber die klassischen schmutzigen Quellen sparen.

  12. Bundesamt fuer Strahlenschutz 1989-2014

    International Nuclear Information System (INIS)

    Ebermann, Lutz

    2015-01-01

    The information on the Bundesamt fuer Strahlenschutz 1989-2014 includes the following contributions: Bfs concentrates the radiation protection expertise; knowledge generation, knowledge testing knowledge application: the BfS as scientific organization; radiation protection and health; radiation protection and environment, safety of nuclear waste management; safety in nuclear technology; specific challenges for BfS.

  13. Bundesanstalt fuer Strahlenschutz. Annual report 2013

    International Nuclear Information System (INIS)

    Ebermann, Lutz

    2014-01-01

    The annual report 2013 of the Bundesamt fuer Strahlenschutz covers the following issues: from scientific research to preventive consumer protection, actual questions of radiation protection actual challenges in the frame of environmental radiation monitoring; radioactive waste disposal; actual questions on the safety of nuclear technology. The report includes a list of publications.

  14. The role of DEM at CERN

    CERN Document Server

    Van der Bij, E

    2005-01-01

    The DEM group in the Technical Support department provides services for the fabrication of special printed circuits that are invaluable for the whole particle physics community. The capability is based around a core technology that is developed by using skills to etch and process materials that are not commonly used in industry, combined with production methods used in PCB manufacturing. The role of the prototyping facilities is to assist engineers and physicists and to offer them easy access to competencies often not available from industry. At the same time, with the expertise and production capacity available, it makes that CERN is always geared up to handle emergency situations. The design office and the assembly workshop that are also part of DEM have similar roles that lower the cost and improve the quality and maintainability of electronics developed at CERN.

  15. 3D-Druck von Metallen als Substitution und Wettbewerb von Gussteilen?: Vortrag gehalten auf dem 26. Ledebur-Kolloquium, 27. und 28. Oktober 2016, Freiberg

    OpenAIRE

    Müller, Bernhard

    2016-01-01

    Das Fraunhofer-Institut für Werkzeugmaschinen und Umformtechnik IWU ist kompetenter Partner für anwendungsorientierte Forschung im Automobil- und Maschinenbau an den Standorten Chemnitz, Dresden, Zittau unter dem Leitthema „Ressourceneffiziente Produktion“. Die Kernkompetenzen des Instituts in der Werkzeugmaschinenentwicklung, der Umform- und Zerspanungstechnik, der Mechatronik, dem Funktionsleichtbau sowie der Systemtechnologie werden durch den Einsatz generativer Fertigungs-verfahren ergänz...

  16. Combined heat and power generation. A guide for towns and communities, trade and industry; Kraft-Waerme-Kopplung. Ein Leitfaden fuer Staedte und Gemeinden, Gewerbe und Industrie

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-07-01

    The brochure describes the cogeneration technology and explains its advantages. Fields of application and potential users are characterized. The technical and economic prospects are outlined, as well as the cost-profit ratios and the chances and problems of this technology. [German] Die vorliegende Broschuere will dem Leser einen Ueberblick ueber die Thematik der KWK geben und einen Beitrag zu ihrer Foerderung leisten. Die Broschuere will: - Ueber KWK informieren, - die Vorteile der KWK erlaeutern, - die Anwendungsfelder und die moeglichen Anwender charakterisieren, - die technisch-wirtschaftlichen Moeglichkeiten fuer die Nutzung der kW aufzeigen, - die Kosten-Nutzen-Relationen und die wirtschaftlichen Chancen und Probleme der KWK verdeutlichen. (orig.)

  17. Feasibility study for new ecolabels according to ISO 14024 (type I) within the product group: small cogeneration plants; Machbarkeitsstudie fuer neue Umweltzeichen in Anlehnung an ISO 14024 (Type I) fuer die Produktgruppe: Kleine Blockheizkraftwerk-Module

    Energy Technology Data Exchange (ETDEWEB)

    Hoffmann, E.; Hirschl, B.; Kaliske, J. [Institut fuer Oekologische Wirtschaftsforschung (IOEW) gGmbH, Berlin (Germany); Reese, I.; Grimpe, T. [Hamburg Gas Consult (HGC) GmbH (Germany)

    2000-11-02

    available data, it is not possible at the moment to derive concrete criteria for an ecolabel in this field. After the introduction of initial products onto the market, corresponding requirements for plants based on this new technology should be specified. (orig.) [German] Beim vorliegenden Gutachten handelt es sich um eine Machbarkeitsstudie nach ISO 14024. Es behandelt die Frage, ob ein Umweltzeichen fuer kleine BHKW-Module gerechtfertigt ist, und welche Anforderungen diese im Vergabefall erfuellen sollten. Im Rahmen der Untersuchung wurde zunaechst eine umfassende Marktanalyse durchgefuehrt, um daraus die Anlagen zu identifizieren, die fuer ein Umweltzeichen in Frage kommen. Im Hauptteil der Studie ging es um die vertiefende Analyse der Umweltrelevanz der ausgewaehlten Anlagen. Hierzu wurde eine Herstellerbefragung durchgefuehrt und ausgeaehlte BHKW anhand eines Systemvergleiches mit Gas- und Oelheizkesseln verglichen. Auf der Basis dieser Analyse wurden Anforderungskataloge fuer Gas- und Diesel-BHKW-Module abgeleitet, die in einem Fachgespraech in einer breiten Runde von Experten und Herstellern vorgestellt und diskutiert wurden. Aus der Studie und dem Fachgespraech konnte ein deutliches Votum fuer ein Umweltzeichen fuer die untersuchten BHWK-Module abgeleitet werden. Die vorgeschlagenen Vergabegrundlagen umfassen Anforderungen an Richtlinienkonformitaet, rationelle Energienutzung (Elektrischer und Gesamtwirkungsgrad bei Nennlast und Teillast, Angabe des Hilfsstrombedarfes), Emissionswerte von CO, NO{sub x}, Staub und organischen Stoffen, Schallemissionen, Angebot von Wartungsvertraegen, Ruecknahmeverpflichtung sowie Anforderungen an die Bedienungsanleitung. Als moegliche Umschrift eines Zeichens fuer kleine BHKW-Module wird empfohlen: 'Umweltzeichen... weil energieefizient'. Neben motorischen BHKW wurden auch kleine Brennstoffzellen-BHKW untersucht. Diese befinden sich zur Zeit noch in einer Feldtest- und Erprobungsphase. Sie weisen deutliche oekologische

  18. Volcanic geomorphology using TanDEM-X

    Science.gov (United States)

    Poland, Michael; Kubanek, Julia

    2016-04-01

    Topography is perhaps the most fundamental dataset for any volcano, yet is surprisingly difficult to collect, especially during the course of an eruption. For example, photogrammetry and lidar are time-intensive and often expensive, and they cannot be employed when the surface is obscured by clouds. Ground-based surveys can operate in poor weather but have poor spatial resolution and may expose personnel to hazardous conditions. Repeat passes of synthetic aperture radar (SAR) data provide excellent spatial resolution, but topography in areas of surface change (from vegetation swaying in the wind to physical changes in the landscape) between radar passes cannot be imaged. The German Space Agency's TanDEM-X satellite system, however, solves this issue by simultaneously acquiring SAR data of the surface using a pair of orbiting satellites, thereby removing temporal change as a complicating factor in SAR-based topographic mapping. TanDEM-X measurements have demonstrated exceptional value in mapping the topography of volcanic environments in as-yet limited applications. The data provide excellent resolution (down to ~3-m pixel size) and are useful for updating topographic data at volcanoes where surface change has occurred since the most recent topographic dataset was collected. Such data can be used for applications ranging from correcting radar interferograms for topography, to modeling flow pathways in support of hazards mitigation. The most valuable contributions, however, relate to calculating volume changes related to eruptive activity. For example, limited datasets have provided critical measurements of lava dome growth and collapse at volcanoes including Merapi (Indonesia), Colima (Mexico), and Soufriere Hills (Montserrat), and of basaltic lava flow emplacement at Tolbachik (Kamchatka), Etna (Italy), and Kīlauea (Hawai`i). With topographic data spanning an eruption, it is possible to calculate eruption rates - information that might not otherwise be available

  19. Investigations on pretreatment of waste prior to fermentation by percolation using the ISKA {sup registered} process; Untersuchungen zur Vorbehandlung von Abfaellen vor der Vergaerung mittels Perkolation nach dem ISKA {sup registered} -Verfahren

    Energy Technology Data Exchange (ETDEWEB)

    Santen, H. [Technische Univ. Braunschweig (Germany). FG Abfallwirtschaft; Fricke, K. [Technische Univ. Braunschweig (Germany). Lehrstuhl Abfallwirtschaft; Engelhard, T.; Widmer, C. [ISKA GmbH, Ettlingen (Germany)

    2004-07-01

    Waste treatment prior to fermentation is a key aspect in achieving economic efficiency. One process is presented here in particular: percolation, in which waste is hydrolyzed aerobically, treated mechanically, and washed out with the aid of process water. The process involves a percolation stage followed by a fermentation stage. The process water burdened with organic matter is passed into a fermentation reactor in which the organic components are reacted anaerobically into biogas and bacterial mass, and the process water is recirculated into the percolation reactor. (orig.) [German] Vergaerungstechnologien zaehlen zu den etablierten Verfahren zur Gewinnung regenerativer Energien aus Biomasse. Fuer die Energieeffizienz dieser Verfahren sind die Leistung der Vergaerungsstufe, die Hoehe der Verfuegbarkeit der anaerob abzubauenden organischen Substanzen und der spezifische Energiebedarf des Behandlungsverfahrens massgeblich. Eine Schluesselstellung fuer die Optimierung beider Faktoren nimmt die Abfallaufbereitung vor der Vergaerung ein. Eine Technoloie zur Aufbereitung vor der Vergaerung basiert auf dem Verfahren der Perkolation, in der der Abfall aerob hydrolysiert,mechanisch aufgeschlossen und durch Zugabe von Prozesswasser ausgewaschen wird. Das Verfahren besteht aus einer Aufbereitung - der Perkolation - sowie einer nachgeschalteten Vergaerung. Das mit vergaerbarer Organik beladene Prozesswasser wird einem Vergaerungsreaktor zugefuehrt, in dem die organischen Komponenten anaerob zu Biogas und Bakterienmasse umgesetzt werden. Das aufbereitete Prozesswasser wird anschliessend wieder dem Perkolationsreaktor zugefuehrt. (orig.)

  20. Institute for Nuclear Waste Disposal. Annual Report 2011

    International Nuclear Information System (INIS)

    Geckeis, H.; Stumpf, T.

    2012-01-01

    The R and D at the Institute for Nuclear Waste Disposal, INE, (Institut fuer Nukleare Entsorgung) of the Karlsruhe Institute of Technology (KIT) focuses on (i) long term safety research for nuclear waste disposal, (ii) immobilization of high level radioactive waste (HLW), (iii) separation of minor actinides from HLW and (iv) radiation protection.

  1. DEM Calibration Approach: design of experiment

    Science.gov (United States)

    Boikov, A. V.; Savelev, R. V.; Payor, V. A.

    2018-05-01

    The problem of DEM models calibration is considered in the article. It is proposed to divide models input parameters into those that require iterative calibration and those that are recommended to measure directly. A new method for model calibration based on the design of the experiment for iteratively calibrated parameters is proposed. The experiment is conducted using a specially designed stand. The results are processed with technical vision algorithms. Approximating functions are obtained and the error of the implemented software and hardware complex is estimated. The prospects of the obtained results are discussed.

  2. Small catchments DEM creation using Unmanned Aerial Vehicles

    Science.gov (United States)

    Gafurov, A. M.

    2018-01-01

    Digital elevation models (DEM) are an important source of information on the terrain, allowing researchers to evaluate various exogenous processes. The higher the accuracy of DEM the better the level of the work possible. An important source of data for the construction of DEMs are point clouds obtained with terrestrial laser scanning (TLS) and unmanned aerial vehicles (UAV). In this paper, we present the results of constructing a DEM on small catchments using UAVs. Estimation of the UAV DEM showed comparable accuracy with the TLS if real time kinematic Global Positioning System (RTK-GPS) ground control points (GCPs) and check points (CPs) were used. In this case, the main source of errors in the construction of DEMs are the errors in the referencing of survey results.

  3. Forschungszentrum Juelich, Institut fuer Kernphysik/COSY. Annual report 2009

    Energy Technology Data Exchange (ETDEWEB)

    Buescher, Markus; Hanhart, Christoph; Krewald, Siegfried; Machner, Hartmut; Maier, Rudolf; Meissner, Ulf G.; Ritman, James; Stockhorst, Hans; Stroeher, Hans (eds.)

    2010-05-15

    The following topics were dealt with: Physics at COSY, COSY operation and developments, further experimental activities, theoretical investigations, preparation of the HESR, the PANDA experiment. (HSI)

  4. Universitaet Muenster, Institut fuer Kernphysik. Annual report 1992/93

    International Nuclear Information System (INIS)

    Kampert, K.H.; Frekers, D.; Latt, M.

    1994-01-01

    The annual report contains extended abstracts about the work performed in the owned research center together with a list of talks and publications. The work concerns experimental studies on nuclear reactions at high energies, few body reactions at intermediate energies, and particle physics, atomic physics, atomic collisions with surfaces, material science, experimental techniques and technical developments, and technical support. (orig.)

  5. Universitaet Mainz, Institut fuer Kernchemie. Annual report 1998

    International Nuclear Information System (INIS)

    Denschlag, H.O.

    1999-03-01

    The annual report concentrates on three research activities of major interest: (1) Nuclear chemistry in the sense of approaches to fundamental problems which also relate to nuclear physics (nuclear fission, chemistry of the heaviest elements, excitation of giant dipole resonance, Halo nuclei, radiochemical astrophysics (structure of neutron-rich nuclei, prediction of half-lives and P n -values, elemental abundances), metal clusters in vacuum). (2) Radiopharmaceutical chemistry and applications in nuclear medicine (synthesis of radiopharmaceuticals using 3 H and 18 F, in vitro and in vivo evaluation of radiopharmaceuticals, diagnostics using PET, solid-state target systems, development and test of radiopharmaceuticals using isotopes of As, Y, Nb, Nd, and Re). (3) Environmental analysis (humic acid complexes of actinides and lanthanides, disintegration products of cellulose, ultratrace analysis using RIMS, determination of Th and U in the environment and in urine, AOX determination in waste waters, anthropogenic γ emitters in ground level air). (orig./CB) [de

  6. Forschungszentrum Juelich, Institut fuer Kernphysik. Annual report 1993

    International Nuclear Information System (INIS)

    Baur, G.; Filges, D.; Kilian, K.; Maier, R.; Rossen, P. v.; Schult, O.; Seyfarth, H.; Speth, J.; Turek, P.

    1994-02-01

    The annual report contains extended abstracts about the work performed in the named research center in 1993 together with a list of talks and publications. The work concerns experimental and theoretical studies on medium and high energy physics, nuclear spectroscopy, nuclear structure and reaction mechanisms, developments of the cooler synchrotron COSY, isochronous cyclotron and ion sources, the magnetic spectrometer BIG KARL, as well as technical developments on data acquisition and processing, electronics, detector and targets, and ESS. (DG)

  7. Forschungszentrum Juelich, Institut fuer Kernphysik/COSY. Annual report 2010

    Energy Technology Data Exchange (ETDEWEB)

    Buescher, Markus; Grzonka, Dieter; Hanhart, Christoph; Krewald, Siegfried; Maier, Rudolf; Meissner, Ulf G.; Ritman, James; Stockhorst, Hans; Stroeher, Hans (eds.)

    2011-04-15

    The following topics are dealt with: Physics at COSY, COSY operation and developments, further experimental activities, theoretical investigations, preparation of the HESR, the PANDA experiments. (HSI)

  8. Forschungszentrum Juelich, Institut fuer Kernphysik/COSY. Annual report 2009

    International Nuclear Information System (INIS)

    Buescher, Markus; Hanhart, Christoph; Krewald, Siegfried; Machner, Hartmut; Maier, Rudolf; Meissner, Ulf G.; Ritman, James; Stockhorst, Hans; Stroeher, Hans

    2010-05-01

    The following topics were dealt with: Physics at COSY, COSY operation and developments, further experimental activities, theoretical investigations, preparation of the HESR, the PANDA experiment. (HSI)

  9. Forschungszentrum Juelich, Institut fuer Kernphysik/COSY. Annual report 2010

    International Nuclear Information System (INIS)

    Buescher, Markus; Grzonka, Dieter; Hanhart, Christoph; Krewald, Siegfried; Maier, Rudolf; Meissner, Ulf G.; Ritman, James; Stockhorst, Hans; Stroeher, Hans

    2011-04-01

    The following topics are dealt with: Physics at COSY, COSY operation and developments, further experimental activities, theoretical investigations, preparation of the HESR, the PANDA experiments. (HSI)

  10. Forschungszentrum Juelich, Institut fuer Kernphysik/COSY. Annual report 2007

    Energy Technology Data Exchange (ETDEWEB)

    Buescher, M.; Hanhart, C.; Krewald, S.; Machner, H.; Maier, R.; Meissner, U.G.; Ritman, J.; Stockhorst, H.; Stroeher, H. (eds.)

    2008-03-15

    The following topics are dealt with, Physics at COSY, external experiments, theoretical investigations. COSY operation and developments, preparation for FAIR. See hints under the relevant topics. (HSI)

  11. Forschungszentrum Juelich, Institut fuer Kernphysik/COSY. Annual report 2007

    International Nuclear Information System (INIS)

    Buescher, M.; Hanhart, C.; Krewald, S.; Machner, H.; Maier, R.; Meissner, U.G.; Ritman, J.; Stockhorst, H.; Stroeher, H.

    2008-03-01

    The following topics are dealt with, Physics at COSY, external experiments, theoretical investigations. COSY operation and developments, preparation for FAIR. See hints under the relevant topics. (HSI)

  12. Forschungszentrum Rossendorf, Institut fuer Ionenstrahlphysik und Materialforschung. Annual report 1993

    International Nuclear Information System (INIS)

    Moeller, W.; Wieser, E.; Kirch, S.

    1994-04-01

    Highlights were: Ion beam induced epitaxial crystallization of 6H-SiC -Band gap engineering in Co alloyed β-FeSi 2 formed by ion beam synthesis -Formation of CoSi 2 wires by maskless implantation with the focused ion beam -Phosphorus implanted n + -layers for HPGe - Development of a fluidic ISFET microsystem for chemical analysis - Depth selective Moessbauer spectroscopy of Al-implanted iron - Plasma source ion implantation - Simultaneous light element analysis by HIERD for plasma-wall interaction studies in fusion research -Paint layer studies using PIXE on air - Texture investigation on geological three phase samples - status of the Rossendorf 7.25 GHz ECR ion source -Formation of double-height Si(001) steps by sputtering with Xe ions - a computer simulation - Self-organisation during Ostwald ripening in ion beam synthesis of buried compound layers - Modification of metals and other materials - Modification of semiconductors and patterning by focused ion beam -Application of ion beams to sensors - Ion beam analysis, fundamentals of ion-solid-interaction and accelerator technique - Structural research. (orig./HP)

  13. Evaluation and development of soil values for the pathway 'soil to plant'. Transfer factors soil to plant; Ueberpruefung und Fortentwicklung der Bodenwerte fuer den Boden-Pflanze-Pfad. Teilbericht 1: Transferfaktoren Boden-Pflanze

    Energy Technology Data Exchange (ETDEWEB)

    Trapp, S.; Matthies, M.; Reiter, B.; Gaeth, S.

    2001-10-01

    Within the research project 'Ueberpruefung und Fortentwicklung der Bodenwerte fuer den Boden-Pflanzen-Pfad', transfer factors soil to plant were calculated for compounds of the substance classes PCB and PAH. Literature studies, experiments undertaken by the LUA/Essen at the lysimeter research station Waldfeucht, and model simulations were used. The transfer differs for the plant species. For kale and wheat straw, the dominant uptake is from air. For lettuce and spinach, a significant uptake from soil was found. The main transport seems to occur via soil resuspension and volatilization, followed by sorption to leaf surfaces. These processes act mainly on low growing harvest products. Uptake from the soil solution and translocation within the plant do not seem to play a role except for phenanthren. The carrots and potatoes investigated showed only a contamination of the peel. The transfer factors of the PCB were throughout higher than that of the PAH. We assume that photolytic processes of PAH on plant surfaces are responsible. Furthermore, there are hints in literature that the metabolism of PAH in plants is faster than that of the PCB. (orig.) [German] Im Rahmen des Forschungsvorhabens 'Ueberpruefung und Fortentwicklung der Bodenwerte fuer den Boden-Pflanze-Pfad' wurden fuer organische Schadstoffe aus den Stoffklassen PCB und PAK Transferfaktoren Boden-Pflanze errechnet. Hierzu wurden Literaturstudien, Experimente der LUA von der Lysimeteranlage Waldfeucht sowie Modellsimulationen eingesetzt. Der Transfer ist fuer die untersuchten Pflanzen nicht einheitlich. Fuer Gruenkohl und Weizenstroh wurde eine Dominanz des Eintrags aus der Luft festgestellt. Demgegenueber zeigte sich fuer Salatpflanzen und Spinat deutliche Aufnahme aus dem Boden. Als Haupttransportweg werden Resuspension von Bodenpartikeln und Ausgasung aus dem Boden mit nachfolgender Sorption an Blattflaechen vermutet. Diese Prozesse wirken vorwiegend auf niedrig wirkende Ernteprodukte

  14. Amended EC Directive on the limitation of emissions of certain pollutants into the air from large combustion plants. Implications for German power plants; Neue EG-Richtlinie fuer Grossfeuerungsanlagen. Folgerungen fuer deutsche Kraftwerke

    Energy Technology Data Exchange (ETDEWEB)

    Hildebrand, M. [Verband der Elektrizitaetswirtschaft - VDEW - e.V., Frankfurt (Germany). Bereich Recht und Umwelt

    2002-03-11

    The article highlights the major improvements in terms of reducing emissions from large combustion plants, comparing the new limiting values and specifications with those of the former Directive. As Germany is obliged to transform the new EC Directive into national law within twelve months from its entry into force, an amendment of the respective German regulation can be expected soon. (orig./CB) [German] Mit der im Herbst 2001 durch das Europaeische Parlament und den Umweltministerrat verabschiedeten Novelle der Grossfeuerungsanlagen-Richtlinie hat die Europaeische Union einen markanten, laengst ueberfaelligen Schritt zur EU-weiten Angleichung der emissionsseitigen Anforderungen an grosse Feuerungsanlagen unternommen. Mit dem Inkrafttreten der novellierten Grossfeuerungsanlagen-Richtlinie wurde aber auch der formale Anstoss fuer eine Aktualisierung der deutschen Grossfeuerungsanlagen-Verordnung (13.BImSchV) gegeben. (orig./CB)

  15. Simple Stirling engine as cogeneration unit in residential areas; Einfacher Stirling-Motor fuer die Waerme-Kraft-Kopplung (WKK) in kleinen Wohngebaeuden

    Energy Technology Data Exchange (ETDEWEB)

    Budliger, J.P.

    2000-07-01

    Free-piston Stirling engines have been recognized for long as an ideally suited unit for combined heat and power (CHP) production in homes. The considerably improved use of fossil fuel as compared to their separate production, the clean, external combustion process and low noise are major assets, favouring the use of this technology in residential areas. However, up to present, the complexity and correspondingly high cost of these units hampered their practical application. A new, simple concept has recently been devised, which can easily be controlled and operated according to demand. Cost may be reduced substantially as compared to presently known concepts, giving promise for their widespread use in residential homes, as well as in a variety of other applications. (orig.) [German] Freikolben-Stirling-Motoren sind ideale Aggregate fuer die Waerme-Kraft-Kopplung (WKK oder KWK) in kleineren Wohnhaeusern. Der Brennstoff kann wesentlich besser genutzt werden als bei getrennter Bereitung der benoetigten Heizwaerme und der elektrischen Energie. Die saubere, kontinuierliche aeussere Verbrennung und der geringe abgegebene Laerm stellen wichtige Bedingungen fuer einen erfolgreichen Einsatz solcher Systeme im Wohnbereich dar. Bisher verhinderten aber die Komplexitaet der verfuegbaren Systeme den praktischen Einsatz dieser Einheiten. Im Folgenden wird ein neues, einfaches Konzept vorgestellt, welches zuverlaessig funktioniert und auch unter Teillast, dem benoetigten Waermebedarf genau angepasst, betrieben werden kann. Die Herstellungskosten sind wesentlich geringer als bei den bisher bekannten Systemen, was ideale Voraussetzungen fuer deren verbreitete Anwendung im Haushalt, wie in vielfaeltigen anderen Einsatzgebieten darstellt. (orig.)

  16. Customer care policy for utilities - demonstrated with the example of a call center; Customer Care fuer EVU - Wirkungszusammenhaenge am Beispiel des Telefon-Service

    Energy Technology Data Exchange (ETDEWEB)

    Weisse, D. [Consulting und Services, pdv Unternehmensberatung GmbH, Roesrath (Germany)

    2000-01-10

    Customer care policy, for preventing change to another provider and consolidating customer loyalty, is becoming a strategic (powerful) instrument for a utility in the competitive market. But what does this really imply for the day-to-day process of dealing with client-specific operations and workflows? The article describes the interactions between strategic marketing for ensuring client satisfaction and the resulting requirements to be met by a utility's call center, and also describes the key 'parameters' and requirements for successful day-to-day management of call centers. (orig./CB) [German] Customer Care zur Reduzierung der Wechselbereitschaft bzw. zur Erhoehung der Kundenbindung wird fuer EVU zu einem strategischen Instrument im Kampf um die Kunden. Aber was bedeutet dies fuer die operative Abwicklung der kundenbezogenen Geschaeftsprozesse? Der Verfasser erlaeutert die Zusammenhaenge zwischen dem strategischen Ziel der Kundenzufriedenheit und der operativen Umsetzung des Telefon-Service und beschreibt die 'Stellschrauben', die fuer diesen Zweck bei der Planung aber auch im taeglichen Management eines Call Centers zur Verfuegung stehen. (orig.)

  17. Water quality objectives for priority substances aiming at the protection of the aquatic community. Final report; Ableitung von Zielvorgaben fuer prioritaere Stoffe zum Schutz von Oberflaechengewaessern. Endbericht

    Energy Technology Data Exchange (ETDEWEB)

    Herrchen, M.; Mueller, M.; Storm, A.

    2000-03-15

    Zielvorgaben fuer das Schutzgut aquatische Lebensgemeinschaft, welches Zielsetzung des vorliegenden Berichtes ist, wird in der Regel der niedrigste NOEC-Wert fuer die empfindlichste Art aus vier verschiedenen trophischen Ebenen der Biozoenose herangezogen. Liegen die Daten nicht im erforderlichen Umfang vor, so werden Ausgleichsfaktoren eingesetzt, deren Hoehe ihrerseits von der Testdauer, dem betrachteten biologischen Endpunkt und dem Datenumfang abhaengig ist. Im vorliegenden Bericht wurden schwerpunktmaessig Zielvorgaben fuer eine Reihe von Pflanzenschutzmitteln abgeleitet; jedoch wurden auch halogenierte Verbindungen sowie die aktuell diskutierten Nonylphenole und Tributylzinn-Verbindungen betrachtet. Die Datenlage erlaubte fuer insgesamt 11 der 27 behandelten Verbindungen/Stoffgruppen die Ableitung von Zielvorgaben. Datenrecherche- und Bewertungsergebnisse wurden sowohl in Form einer Datenbank (MS-ACCESS), ausgestattet mit einer Schnittstelle zur oekotoxikologischen Schnellauskunft, als auch in Form von Stoffdatenblaettern dokumentiert. (orig.)

  18. Characterization of surface defects in high strength galvannealed steels; Charakterisierung der Oberflaechendefekte in hochfesten, nach dem Verzinken waermebehandelten Staehlen

    Energy Technology Data Exchange (ETDEWEB)

    Hong, M.H. [Automotive Steels Research Center, Technical Research Labs., POSCO, Gwangyang (Korea)

    2004-03-01

    Hot-dip galvannealed steel sheets, in which Fe of the substrate steel diffused into upper coating layer so as to be alloyed with Zn through a galvannealing above 450 C followed by hot-dip galvanizing process, generally show superior corrosion resistance, weldability and paintability. They have been widely used in automobile, construction, appliance industries and others. In particular, many researches have been carrying out to produce defect-free coating for an exposed automotive body panel. In the present study, high strength interstitial-free steel sheets containing Mn and P were galvannealed in an industrial continuous galvanizing line and defects on the coating surface were investigated by optical microscopy, scanning electron microscopy and transmission electron microscopy. It is clear that the quality of the substrate strongly affects galvannealed coating and it is essential to keep clean surface just before immediately dipping into molten Zn pot. (orig.) [German] Feuerverzinkte und danach waermebehandelte Stahlbleche, wo Fe aus dem Substratstahl in die obere Beschichtungsschicht diffundiert wie bei Legieren mit Zn und einer Waermebehandlung von ueber 450 C, gefolgt von einem Feuerverzinkverfahren, zeigen im Allgemeinen hervorragende Korrosionsbestaendigkeit, Schweissbarkeit und Anstreichbarkeit. Sie finden ein breites Einsatzgebiet bei Automobilen, im Bauwesen, in Werkzeugindustrien und anderen. Insbesondere wurde von vielen Forschern versucht, eine fehlerfreie Beschichtung fuer ein ungeschuetztes Karosserieteil herzustellen. In der vorliegenden Arbeit wurden hochfeste porenfreie Stahlbleche mit Mn- und P-Gehalt nach dem Verzinken in einer industriellen Endlos-Verzinkungslinie (CGL) waermebehandelt, wobei die Defekte auf der Schichtoberflaeche lichtmikroskopisch, rasterund transmissionselektronenmikroskopisch untersucht wurden. Klar ist, dass die Qualitaet des Substrats die nach dem Verzinken waermebehandelten Schichten beeinflusst und es ist von grosser

  19. Mega hub for intermodal transport - the planning of the most advanced container terminal in the world; Mega-Drehscheibe fuer den Kombinierten Verkehr - Planung des modernsten Containerbahnhofes der Welt

    Energy Technology Data Exchange (ETDEWEB)

    Franke, K.P. [Noell Stahl- und Maschinenbau GmbH, Wuerzburg (Germany). Abt. Hafentechnik

    1998-12-31

    The introduction of innovative mega hub systems for the operation of cargo trains is a promising starting point for increasing the efficiency of intermodal transport. A first mega hub as it is known has been planned for Northern Germany with its centre in Lehrte near Hannover. Instead of shunting the waggons, containers will be transferred from train to train at the mega hub. This is not only faster, but also more economical and thus more attractive to rail transport clients. No other known system can achieve such high transhipment/shunting capacities per surface unit. The design of the system guarantees the maximum degree of flexibility in transhipment operations. A high degree of automation will ensure the quality and speed of transhipment. The technical development of the fast transhipment system (FTS) by Noell has been completed. (orig.) [Deutsch] Ein vielversprechender Ansatz fuer die Steigerung der Leistungsfaehigkeit des Kombinierten Verkehrs (KV) ist die Einfuehrung von innovativen Drehscheibensystemen fuer den Betrieb der Cargo-Zuege. Eine erste sogenannte Mega-Drehscheibe wurde fuer den Norden Deutschlands mit Zentrum Lehrte bei Hannover geplant. Statt zu rangieren sollen in der Mega-Drehscheibe die Behaelter zwischen den Zuegen umsteigen. Das ist schneller, kostenguenstiger und damit attraktiver fuer den Bahnkunden. Darueber hinaus ist kein System bekannt, bei dem eine so hohe Umschlag-/Umstelleistung je Flaecheneinheit realisiert werden kann. Die Gestaltung der Anlage gewaehrt eine maximale Flexibilitaet im Umschlagbetrieb. Ein hoher Automatisierungsgrad wird Qualitaet und Schnelligkeit des Umschlages sichern. Die technische Entwicklung der Schnellumschlagtechnik seitens Noell ist abgeschlossen. (orig.)

  20. Marginal flow in compressor cascades. Influence of gap, cascade geometry, loads and inflow boundary layer. Final report; Randstroemung in Verdichtergittern. Untersuchung der Randstroemung in Verdichtergittern unter dem Einfluss von Spalt, Gittergeometrie, Gitterbelastung und Zustroemgrenzschicht. Abschlussbericht

    Energy Technology Data Exchange (ETDEWEB)

    Huebner, J

    1996-07-01

    Experimental and theoretical investigations were made in order to define the main influencing parameters of gap flow and secondary flow in compressor cascades. The investigations and results are presented in detail. [German] Im Rahmen des FVV-Forschungsvorhabens 'Randstroemung in Verdichtergittern' wurden am Institut fuer Strahlantriebe der Universitaet der Bundeswehr Muenchen umfangreiche experimentelle und theoretische Untersuchungen zur Bestimmung der wesentlichen Einflussgroessen auf die Spalt- und Sekundaerstroemung in Verdichtergittern durchgefuehrt. Als Parameter wurden die Spaltweite, das Schaufelseitenverhaeltnis mit Schaufelhoehe und Sehnenlaenge, die aerodynamische Belastung und die Zustroemgrenzschichtdicke variiert. Zur Analyse der Stroemungsvorgaenge wurden Fuenflochsonden-Stroemungsfeldtraversierungen, Profil- und Seitenwanddruckverteilungsmessungen und Laser-Zwei-Fokus-Messungen im Spalt herangezogen. Die experimentellen Untersuchungen zeigen eine komplexe Wechselwirkung zwischen Spalt- und Kanalwirbel. Die Spalt- und Sekundaerverluste steigen mit der Spaltweite und der aerodynamischen Belastung, wobei der Anstieg eine welchselseitige Abhaengigkeit der Parameter aufweist. Gegenueber dem Schaufelseitenverhaeltnis verhalten sich die Spalt- und Sekundaerverluste umgekehrt proportional. Die Zustroemgrenzschicht beeinflusst zwar den Verlust- und Abstroemwinkelverlauf ueber der Schaufelhoehe, jedoch nicht die sich abzueglich des Profil- und Zustroemverlustes ergebenden Spalt- und Sekundaerverluste. Die verwendeten 3D Stroemungsberechnungsverfahren erfassen die Stroemungsphaenomene qualitativ gut, wobei der Spaltmodellierung eine besondere Rolle zukommt. Die realistische Spaltmodellierung erlaubt einen sehr detaillierten Einblick in das Stroemungsgeschehen im Spalt. Die Verlustberechnung erweist sich jedoch als sehr unsicher. Auf der Grundlage einer umfangreichen Literaturanalyse wurden die verfuegbaren Korrelationen zur Berechnung des Spaltverlustes und

  1. Bundesanstalt fuer Strahlenschutz. Annual report 2013; Bundesanstalt fuer Strahlenschutz. Jahresbericht 2013

    Energy Technology Data Exchange (ETDEWEB)

    Ebermann, Lutz (comp.)

    2014-10-01

    The annual report 2013 of the Bundesamt fuer Strahlenschutz covers the following issues: from scientific research to preventive consumer protection, actual questions of radiation protection actual challenges in the frame of environmental radiation monitoring; radioactive waste disposal; actual questions on the safety of nuclear technology. The report includes a list of publications.

  2. Ultrasound motion tracking for radiation therapy; Ultraschallbewegungstracking fuer die Strahlentherapie

    Energy Technology Data Exchange (ETDEWEB)

    Jenne, J. [Fraunhofer-Institut fuer Bildgestuetzte Medizin MEVIS, Bremen (Germany); Mediri GmbH, Heidelberg (Germany); Schwaab, J. [Mediri GmbH, Heidelberg (Germany)

    2015-11-15

    bzw. -kompensation werden zurzeit untersucht oder schon in der Klinik angewendet. Die Sonographie ist eine vielversprechende Option, die nun kurz vor der klinischen Implementierung steht. Hoher Weichteilkontrast, Echtzeitfaehigkeit, Verzicht auf ionisierende Strahlung sowie relativ geringe Anschaffungskosten zeichnen den Ultraschall besonders fuer diesen Zweck aus. Ultraschallbewegungstracking ist ein bildbasierter Ansatz, d. h. das Zielvolumen oder eine damit verbundene Struktur werden direkt beobachtet und deren Bewegung automatisch auf dem Ultraschallbild nachverfolgt. Diverse Algorithmen stehen derzeit zur Verfuegung, die sowohl aus 2-D- als auch 3-D-Bildern die aktuellen Koordinaten einer Zielstruktur liefern. Die Auswahl eines passenden Schallfensters ist jedoch nicht trivial, und ein Goldstandard fuer die Positionierung und Halterung des Schallkopfs wurde noch nicht erarbeitet. Ausserdem sind die Verarbeitung der Koordinateninformation an der Therapieeinheit sowie die dynamische Anpassung des Strahlfeldes grosse Herausforderungen. Es ist offen, ob sich Ultraschallbewegungstracking in der klinischen Routine etabliert, obwohl alle technischen Voraussetzungen als erfuellt angesehen werden koennen, sodass weiterhin spannende Entwicklungen in diesem Forschungsfeld zu erwarten sind. (orig.)

  3. Solarsupport for schools. Utilization of sleeping photovoltaic plants for environmental communication; Solarsupport fuer Schulen. Schlafende Fotovoltaikanlagen fuer die Umweltkommunikation nutzen

    Energy Technology Data Exchange (ETDEWEB)

    Scharp, Michael; Dinziol, Martin; Kliche, Florian

    2009-07-15

    A central question of today's political debates is: Which means are there for ensuring a long-term and sustainable energy supply? Here, strategies for covering tomorrow's energy supply assign renewable energies a decisive role. In face of constantly rising prices for fossil fuels like carbon, oil and gas or the still open question concerning the removal of atomic waste, these discussions are eminently urgent. In order to confront climatic change, renewable energies are needed, so that also in the future a longterm and sustainable energy supply is secured. Sustainable energy supply is the context for the project Solarsupport, which has been supported by the Federal Ministry for the Environment, Nature Conservation and Nuclear Safety (FKZ 0327613). The project has been coordinated by the Institute for Environmental Questions (''Unabhaengige Institut fuer Umweltfragen e.V.'' - UFU) and conducted in cooperation with the Institute for Future Studies and Technology Assessment (''Institut fuer Zukunfststudien und Technologiebewertung gGmbH'' - IZT) and the German Society for Solar Energy, Regional Association Berlin-Brandenburg (Deutsche Gesellschaft fuer Sonnenenergie Regionalverband Berlin-Brandenburg e.V. - DGS). Particularly, the project is concerned with the pedagogical use of solar energy at school. Despite the relatively high number of solar plants at schools, only a few use their plants for pedagogical means. The project Solarsupport surveyed schools with solar plants. As the main reason for the insufficient pedagogical use of solar plants the interviewed teachers named the la ck of a pedagogical concept and their colleagues' disinterest, two factors which are able to reinforce one another. Moreover, it became clear that because of their insufficient technical equipment (no displays, no means for evaluating the plants' output, no connection with the school computers and internet) a high number of the

  4. Telematics for hazardous goods transportation; Anwendungen fuer den Transport von kritischen Guetern

    Energy Technology Data Exchange (ETDEWEB)

    Stingl, D [Danzas Logistics GmbH, Hamburg (Germany)

    1999-07-01

    In the course of the integration of the customer Langnese Iglo in autumn 1997 and in view of the already existing general conditions for the implementation of the equlations of the directive on food hygiene (HACCP-concept) as well as the permanently in reasing demand for quality of logistics DANZAS Logistics GmbH, cooperating closely with in deep-frozen goods customer Langnese-Iglo decided to develop a new system of quality assurance for the transportation of deep-frozen goods and apply this system to all its activities. First ideas about standard demands, technical solutions and multi-functional design showed that the project had to be handled in such a flexible way that temperature controlling (for the transportation of deep-frozen goods, temperature-controlled DANZAS-warehouses and all future temperature-controlled transportation) and the monitoring of security-relevant transportation can be integrated in one and the same project. (orig.) [German] Im Zuge der Integration des Kunden Langnese Iglo im Herbst 1997 und unter Beruecksichtigung der bereits vorliegenden Rahmenbedingungen zur Umsetzung der Bestimmungen der Lebensmittelhygieneverordnung (HACCP-Konzept) sowie des staendig wachsenden Qualitaetsanspruches an logistische Dienstleistungen, hat sich die DANZAS Logistics GmbH in enger Zusammenarbeit mit dem TK-Kunden Langnese Iglo entschlossen, ein innovatives System zur Qualitaetssicherung im Tiefkuehltransport zu erarbeiten und flaechendeckend einzusetzen. Die ersten Gedanken bezueglich Standardanforderungen, technischer Loesungsansaetze und multifunktionaler Ausrichtung zeigten, dass dieses Projekt so variabel zu gestalten ist, dass sowohl Temperaturcontrolling (fuer TK-Transporte, fuer die temperaturgefuehrten DANZAS-Laeger und zukuenftig alle temperaturgefuehrten Transporte) als auch die Ueberwachung sicherheitsrelevanter Transporte zu integrieren sind. (orig.)

  5. 3. Workshop on measuring instruments for steady and transient multiphase flow; 3. Workshop: Messtechnik fuer stationaere und transiente Mehrphasenstroemungen

    Energy Technology Data Exchange (ETDEWEB)

    Prasser, H.M. [ed.

    1999-12-01

    The emphasis of the conference was on methods of measurement that show spatial distributions of phase fractions and velocity, particle sizes and bubbles of the disperse phase. Among the methods described were 3D X-ray tomography, grid sensor measurement of velocity profiles, and simultaneous measurement of bubble sizes and gas and liquid flow rates using an optical particle tracking method. Also presented were interesting developments in the field of local probes, e.g. an electrodiffusion probe. Another new development was the attempt to use optical tomography for investigations of two-phase flows. [German] Am 14. Oktober 1999 wurde in Rossendorf die dritte Veranstaltung in einer Serie von Workshops ueber Messtechnik fuer stationaere und transiente Mehrphasenstroemungen durchgefuehrt. Dieses Jahr koennen wir auf 11 interessante Vortraege zurueckblicken. Besonders hervorzuheben sind die beiden Hauptvortraege, die von Herrn Professor Hetsroni aus Haifa und Herrn Dr. Sengpiel aus Karlsruhe gehalten wurden. Ihnen und allen anderen Vortragenden moechten wir herzlich fuer ihren Beitrag zum Gelingen des Workshops danken. Erneut lag ein wichtiger Schwerpunkt auf Messverfahren, die raeumliche Verteilungen von Phasenanteilen und Geschwindigkeiten sowie die Groesse von Partikeln bzw. Blasen der dispersen Phase zugaenglich machen. So wurde ueber einen dreidimensional arbeitenden Roentgentomographen, ein Verfahren zur Messung von Geschwindigkeitsprofilen mit Gittersensoren und eine Methode zur simultanen Messung von Blasengroessen sowie Feldern von Gas- und Fluessigkeitsgeschwindigkeit mit einer optischen Partikelverfolgungstechnik vorgetragen. Daneben wurden interessante Entwicklungen auf dem Gebiet der lokalen Sonden vorgestellt, wie z.B. eine Elektrodiffusionssonde. Neue messtechnische Ansaetze waren ebenfalls vertreten; hervorzuheben ist der Versuch, die Methode der optischen Tomographie fuer die Untersuchung von Zweiphasenstroemungen nutzbar zu machen. (orig.)

  6. Pumps for cryogenic liquids with superconducting magnetic bearings. Final report; Pumpen fuer kryogene Fluessigkeiten mit supraleitenden Magnetlagern. Abschlussbericht

    Energy Technology Data Exchange (ETDEWEB)

    Gerlach, G.; Fuchs, G.; Sorber, J.; Brosche, H.; Richter, M.; Frenzel, C.

    2000-07-01

    A liquid nitrogen pump with contactless superconducting magnetic bearings was to be developed on the basis of an available motor with superconducting bearings. Contactless superconducting magnetic bearings require practically no servicing. A high demand for pumps for cryogenic liquids is expected with the impending use of hydrogen as an energy source. The pumping of liquid nitrogen was demonstrated successfully with the new test aggregate. The maximum pumped volume was 17 l/min at a lift of 0.5 m and 6 l/min at a lift of 1 m. In all, 15 hours of operation were registered in the superconducting state of the bearing, which included 2 hours of uninterrupted pump operation. The higher speed range for which magnetic bearings are optimally suited was not reached. Operation at higher frequencies was impossible either because of stronger resonance amplituees or because the power system was too weak. [German] Ziel des Vorhabens war die Entwicklung einer Pumpe fuer fluessigen Stickstoff mit beruehrungslosen supraleitenden Magnetlagern auf der Basis eines vorhandenen supraleitend gelagerten Motors. Die beruehrungslose supraleitende Magnetlager sind praktisch wartungsfrei. Ein Bedarf an Pumpen fuer kryogene Fluessigkeiten entsteht insbesondere durch den in naher Zukunft zu erwartenden Einsatz von Wasserstoff als Energietraeger. Mit dem entworfenen Aggregat wurde das Pumpen von Fluessigstickstoff erfolgreich demonstriert. Der Foerderstrom betrug bei 0,5m Foerderhoehe maximal 17 l/min; beim 1m Foerderhoehe wurden maximal 6 l/min gemessen. Es wurden insgesamt ca. 15 Betriebsstunden in supraleitenden Zustand des Lagers, darunter 2 Stunden ununterbrochener Pumpbetrieb registriert. Der hoehere Drehzahlbereich, fuer den das Magnetlager eigentlich paedestiniert ist, konnte nicht erreicht werden. Ein Betrieb bei hoeheren (Ist-)Frequenzen war nicht moeglich, entweder durch staerkere Resonanzausschlaege oder durch einen zu schwachen Antrieb. (orig.)

  7. Impacts of DEM resolution and area threshold value uncertainty on ...

    African Journals Online (AJOL)

    ... that DEM resolution influences the selected flow accumulation threshold value; the suitable flow accumulation threshold value increases as the DEM resolution increases, and shows greater variability for basins with lower drainage densities. The link between drainage area threshold value and stream network extraction ...

  8. For any purpose; Fuer jeden Zweck

    Energy Technology Data Exchange (ETDEWEB)

    Vorsatz, William

    2013-11-01

    In this article, the offers by almost all car manufacturers are presented in the field of battery-powered models or plug-in hybrids in short form. [German] In diesem Artikel werden in kurzer Form die Angebote von fast allen Autobauern auf dem Gebiet der batteriebetriebene Modelle oder Plug-in-Hybride vorgestellt.

  9. Energy-dispersive study of the interaction of fast neutrons with matter. Common final report of the DFG projects GR 1674/2 and FR 575/5 together with the institute for nuclear and particle physics, technical university Dresden; Energiedispersive Untersuchung der Wechselwirkung schneller Neutronen mit Materie. Gemeinsamer Abschlussbericht der DFG Projekte GR 1674/2 und FR 575/5, zusammen mit dem Institut fuer Kern- und Teilchenphysik, Technische Universitaet Dresden

    Energy Technology Data Exchange (ETDEWEB)

    Altstadt, E.; Beckert, C. [Forschungszentrum Rossendorf e.V. (FZR) (Germany). Inst. fuer Sicherheitsforschung; Beyer, R. [Forschungszentrum Rossendorf e.V. (FZR), Dresden (DE). Inst. fuer Kern- und Hadronenphysik] [and others

    2005-04-01

    In this final report on the research project ''Energy-dispersive study of the interaction of fast neutrons with matter, especially materials for fusion and materials from fission reactors the status reached after three years promotion is described. The aim of this project is the construction and first usage of a very complex time-of-flight system for the study of the interaction of fast neutrons with construction materials for fusion and fission reactors as well as with long-lived radioisotopes. Furthermore astrophysically relevant experiments on problems of the element synthesis shall be performed. The whole project is devided into two sections: 1. Development, construction and test of a pulsed photoneutron source at the ELBE accelerator of the FZ Rossendorf, 2. Application of the photoneutron sources for measurements of cross sections induced by fast, energy-selected neutrons.

  10. Processes and materials for photovoltaic applications. Workshop; Verfahren und Materialien fuer die Photovoltaik. Workshop

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-07-01

    Solar energy will surely continue to be the most important renewable energy source. Since 1985, solar cell production has doubled every five years while the per unit price decreased continuously. This trend is expected to continue. Germany made important contributions both in the construction of new solar cell production plants and in the development of new PV materials and material combinations, as well as in technology and PV plant construction. The states of Thuringia and Saxony were significant contributors. In Thuringia, two solar cell production plants were constructed, while Saxon vacuum coating technology was used in nearly all new German production plants. This workshop presented the activities in Thuringia in Saxony. Contacts were to be established between partners from industry and research, joint projects were to be initiated, and society and politicians were to be informed on the success and new chances achieved. The workshop was held on the occasion of the termination of construction and the starting of experimental production of the ANTEC Solar GmbH factory at Rudisleben. [German] Im Mix der erneuerbaren Energien spielt die Solarenergie kuenftig wohl die wichtigste Rolle. Seit 1985 verdoppelt sich die Solarzellenproduktion in jeweils fuenf Jahren, gleichzeitig sank der Preis pro Leistungseinheit kontinuierlich. Dieser Trend wird weiter anhalten. Deutschland leistete in den letzten Jahren wichtige Beitraege zu dieser Entwicklung, sowohl beim Aufbau neuer Fertigungskapazitaeten fuer Solarzellen, als auch bei der Entwicklung neuer Photovoltaik-Materialien bzw. -Materialkombinationen und auf den Gebieten der Technologie und des Anlagenbaus. Der Anteil Thueringens und Sachsens an dieser positiven Entwicklung ist groesser als generell vermutet. In Thueringen entstanden zwei Unternehmen fuer die Solarzellenproduktion, der saechsische Vakuumbeschichtungs-Anlagenbau war am Aufbau fast aller neuen deutschen Fertigungsstaetten beteiligt. Auf dem Workshop werden

  11. Bundesamt fuer Strahlenschutz. Annual report 1992

    International Nuclear Information System (INIS)

    1993-08-01

    The progress report submitted by Bundesamt fuer Strahlenschutz reveals that this federal radiation protection agency is not only entrusted with the fulfillment of the federal administrative tasks imposed by law but engages in applications-oriented research regarding the operational, metrological and health-related aspects of radiation protection, regarding nuclear safety and radioactive waste management. In addition, BfS takes care of public-relations tasks. The reports submitted by the BfS departments are completed by summaries of the main research results. (orig.) [de

  12. Energy Plus town on the air field; Energie-Plus-Stadt auf dem Flugfeld. TXL+ Visionen fuer die Nachnutzung

    Energy Technology Data Exchange (ETDEWEB)

    Schuetz, Stephan [Gerkan, Marg und Partner, Berlin (Germany); Gerkan, Marg und Partner, Peking (China); Gerkan, Marg und Partner, Shenzhen (China)

    2011-07-01

    With the opening of the Airport Berlin-Brandenburg International in 2012, the subsequent utilization of the terminal as well as the total area of the discontinued Airport Berlin-Tegel moved forward. As the architects of the Airport Tegel, gmp Architekten von Gerkan, Marg und Partner (Hamburg, Federal Republic of Germany) faces the challenge to develop a vision for the subsequent utilization at which any nostalgic musealization such as commercial trivialization should be excluded. Instead of this, with regard to societal and economic challenges a scenario should be created which transforms the potential load into an opportunity for Berlin as well as for Germany.

  13. ASPECTS OF DEM GENERATION FROM UAS IMAGERY

    Directory of Open Access Journals (Sweden)

    A. Greiwe

    2013-08-01

    Full Text Available Since a few years, micro UAS (unmanned aerial systems with vertical take off and landing capabilities like quadro- or octocopter are used as sensor platform for Aerophotogrammetry. Since the restricted payload of micro UAS with a total weight up of 5 kg (payload only up to 1.5 kg, these systems are often equipped with small format cameras. These cameras can be classified as amateur cameras and it is often the case, that these systems do not meet the requirements of a geometric stable camera for photogrammetric measurement purposes. However, once equipped with a suitable camera system, an UAS is an interesting alternative to expensive manned flights for small areas. The operating flight height of the above described UAS is about 50 up to 150 meters above ground level. This low flight height lead on the one hand to a very high spatial resolution of the aerial imagery. Depending on the cameras focal length and the sensor's pixel size, the ground sampling distance (GSD is usually about 1 up to 5 cm. This high resolution is useful especially for the automatic generation of homologous tie-points, which are a precondition for the image alignment (bundle block adjustment. On the other hand, the image scale depends on the object's height and the UAV operating height. Objects like mine heaps or construction sites show high variations of the object's height. As a result, operating the UAS with a constant flying height will lead to high variations in the image scale. For some processing approaches this will lead to problems e.g. the automatic tie-point generation in stereo image pairs. As precondition to all DEM generating approaches, first of all a geometric stable camera, sharp images are essentially. Well known calibration parameters are necessary for the bundle adjustment, to control the exterior orientations. It can be shown, that a simultaneous on site camera calibration may lead to misaligned aerial images. Also, the success rate of an automatic tie

  14. Biodegradable plastics in composting. Results of a practical experiment in the Bad Duerkheim district; Einsatz von biologisch abbaubaren Kunststoffen in der Kompostwirtschaft. Erkenntnisse und Erfahrungen aus dem Praxisversuch im Landkreis Bad Duerkheim

    Energy Technology Data Exchange (ETDEWEB)

    Pabst, Klaus [Abfallwirtschaftsbetrieb Landkreis Bad Duerkheim, Bad Duerkheim (Germany)

    2012-11-01

    For collecting biomass waste, about 65,000 households in the Bad Duerkheim district were given ten bags each of the compostable BASF plastic material Ecovio {sup registered} FS. The biomass waste collected in the Ecovio {sup registered} bags were composted in a composting plant. After the compost process, no residues of the Ecovio {sup registered} bags were found in the rotting, i.e. they are completely degradable. Neither the compost quality nor the working processes in the composting plant were affected, and there was no bigger volume of sorting residues. 90% of the users stated that they were satisfied with the new biomass waste bags. (orig.) [German] Fuer die Entsorgung des Bioabfalls erhielten rund 65.000 Haushalte aus dem Landkreis Bad Duerkheim je zehn Biomuelltuten aus dem kompostierbaren BASF-Kunststoff Ecovio {sup registered} FS. Die in diesen Ecovio {sup registered} -Tueten gesammelten Bioabfaelle wurden im Biokompostwerk zu Kompost verarbeitet. Nach dem Kompostierungsprozess konnten keine Reste der Ecovio {sup registered} -Folien mehr in der Rotte gefunden werden, und sie wurden vollstaendig biologisch abgebaut. Durch den Einsatz dieser Tueten wurden weder die Kompostqualitaet noch die Arbeitsablaeufe im Biokompostwerk beeintraechtigt. Eine Erhoehung der Sortierreste war nicht festzustellen. Im Rahmen einer Kundenbefragung aeusserten sich rund 90% zufrieden mit dem Einsatz dieser Biomuelltueten. (orig.)

  15. Forest report 2013 for Baden-Wuerttemberg; Waldzustandsbericht 2013 fuer Baden-Wuerttemberg

    Energy Technology Data Exchange (ETDEWEB)

    Meining, Stefan [Buero fuer Umweltueberwachung, Freiburg (Germany); Wilpert, Klaus v.; Schaeffer, Juergen; Hartmann, Peter; Schumacher, Joerg; Delb, Horst; John, Reinhold [Forstliche Versuchs- und Forschungsanstalt Baden-Wuerttemberg, Freiburg im Breisgau (Germany); Hoelscher, Andrea [Agentur fuer Nachhaltige Nutzung von Agrarlandschaften, Freiburg (Germany); Augustin, Nicole [Bath Univ. (United Kingdom); Hug, Ralph

    2013-07-01

    As an essential part of forest environmental monitoring, the Forest State Report 2013 shows how environmental factors influence the development of our forests. In addition to the annual survey of the crown state, intensive land surveys were established by the country, which provide extensive results over a long period. Data on the status and growth of the tree, the nutrient cycle, the material intake, soil status, soil vegetation and meteorology, ie the dynamics of environmental changes, are collected. Fortunately, the Forest State Report in 2013 shows that the state of the forests in Baden-Wuerttemberg has slightly improved compared to the previous year. This means that the trend towards the improvement of forest conditions continues after the extreme drought year 2003. This improvement is attributable to the spring weather which is favorable to the forest as well as to a generally low occurrence of harmful insects. [German] Als wesentlicher Teil des forstlichen Umweltmonitorings zeigt der Waldzustandsbericht 2013, wie Umweltfaktoren die Entwicklung unserer Waelder beeinflussen. Ergaenzend zur jaehrlichen Erhebung des Kronenzustandes wurden durch das Land Intensivmessflaechen eingerichtet, die umfangreiche Ergebnisse ueber einen langen Zeitraum liefern. Dort werden Daten zu Baumzustand und -wachstum, Naehrstoffkreislauf, Stoffeintrag, Bodenzustand, Bodenvegetation sowie Meteorologie, also die Dynamik der Umweltveraenderungen, erhoben. Erfreulicherweise zeigt der Waldzustandsbericht 2013, dass sich der Zustand der Waelder in Baden-Wuerttemberg gegenueber dem Vorjahr leicht verbessert hat. Damit setzt sich der Trend zur Verbesserung des Waldzustandes nach dem extremen Trockenjahr 2003 weiter fort. Diese Verbesserungstendenz laesst sich auf die fuer den Wald guenstige Fruehjahrswitterung sowie auf ein allgemein geringes Vorkommen an Schadinsekten zurueckfuehren.

  16. 50. Annual meeting of the Deutsche Gesellschaft fuer Neuroradiologie. Abstracts

    International Nuclear Information System (INIS)

    2015-01-01

    The volume on the 50th annual meeting of the Deutsche Gesellschaft fuer Neuroradiologie includes the abstracts concerning the following issues: infectious central nervous system diseases, neurodegenerations, infarction, petrosal bone pathology, neurointerventions.

  17. 49. Annual meeting of the Deutsche Gesellschaft fuer Neuroradiologie. Abstracts

    International Nuclear Information System (INIS)

    2014-01-01

    The conference proceedings of the 48. Annual meeting of the Deutsche Gesellschaft fuer Neuroradiologie contain abstracts on the following issues: neuro-oncological imaging, multimodal imaging concepts, subcranial imaging, spinal codes, interventional neuroradiology.

  18. Annual report 1999 of the air pollution monitoring network of the German Federal Environmental Agency; Jahresbericht 1999 aus dem Messnetz des Umweltbundesamtes

    Energy Technology Data Exchange (ETDEWEB)

    Beilke, S.; Uhse, K. [comps.

    2000-12-01

    In this annual report the results of the air pollution monitoring network of the German Federal Environmental Agency (FEA) are presented for the year 1999. The network consists of 23 stations (9 stations with personnel and 14 automatically working container stations) which are situated in rural areas. As the data set was thoroughly quality controlled reliable statements on trends can be made. (orig.) [German] Im vorliegenden Jahresbericht werden die Ergebnisse aus dem Messnetz des Umweltbundesamtes fuer das Jahr 1999 vorgestellt, interpretiert und mit den Messungen aus frueheren Jahren verglichen. Das UBA-Messnetz besteht heute aus insgesamt 23 in laendlichen Regionen gelegenen Stationen, wovon 9 Messstellen personell besetzt und 14 automatisch arbeitende Containerstationen sind. Die Datensaetze sind in sich homogen, d.h. es wurden im Verlauf der Jahre keine gravierenden Veraenderungen an den Messbedingungen vorgenommen, weder bei der Probenahme noch bei der Analytik. Die Daten wurden einer eingehenden Qualitaetspruefung unterzogen, sowohl intern als auch bei internationalen Ringvergleichen der Analysenverfahren. (orig.)

  19. Hydraulic fracturing - an attempt of DEM simulation

    Science.gov (United States)

    Kosmala, Alicja; Foltyn, Natalia; Klejment, Piotr; Dębski, Wojciech

    2017-04-01

    Hydraulic fracturing is a technique widely used in oil, gas and unconventional reservoirs exploitation in order to enable the oil/gas to flow more easily and enhance the production. It relays on pumping into a rock a special fluid under a high pressure which creates a set of microcracks which enhance porosity of the reservoir rock. In this research, attempt of simulation of such hydrofracturing process using the Discrete Element Method approach is presented. The basic assumption of this approach is that the rock can be represented as an assembly of discrete particles cemented into a rigid sample (Potyondy 2004). An existence of voids among particles simulates then a pore system which can be filled out by fracturing fluid, numerically represented by much smaller particles. Following this microscopic point of view and its numerical representation by DEM method we present primary results of numerical analysis of hydrofracturing phenomena, using the ESyS-Particle Software. In particular, we consider what is happening in distinct vicinity of the border between rock sample and fracking particles, how cracks are creating and evolving by breaking bonds between particles, how acoustic/seismic energy is releasing and so on. D.O. Potyondy, P.A. Cundall. A bonded-particle model for rock. International Journal of Rock Mechanics and Mining Sciences, 41 (2004), pp. 1329-1364.

  20. Bayerisches Landesamt fuer Umweltschutz. Annual report 1999; Bayerisches Landesamt fuer Umweltschutz. Taetigkeitsbericht 1999

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-07-01

    The annual report informs about the activities of the Bavarian Land Office for Environmental Protection in the following fields: clean air policy, waste management, management of soil pollution and remedial action, nuclear energy and radiation protection, nature conservation and landscape conservation, LfU laboratory, environmental hygiene, and data processing (SR) [German] Der vorliegende Bericht beschreibt die Taetigkeiten des Bayerischen Landesamtes fuer Umweltschutz auf folgenden Gebieten: Immissionsschutz, Abfallwirtschaft, Altlasten und Bodenschutz, Kernenergie und Strahlenschutz, Naturschutz und Landschaftspflege, Zentrallabors und Umwelthygiene, sowie Datenverarbeitung. (SR)

  1. Integration by stages - is this concept an alternative to the established. Results of a research project of the Institute of Integration Research, founded by Europa-Kolleg, Hamburg. Abgestufte Integration - eine Alternative zum herkoemmlichen Integrationskonzept. Ergebnisse eines Forschungsprojektes des Instituts fuer Integrationsforschung der Stiftung Europa-Kolleg Hamburg

    Energy Technology Data Exchange (ETDEWEB)

    Grabitz, E. (ed.)

    1984-01-01

    In various sectors of integration policy, we have now adopted the pragmatic application of the process of ''intergration by stages'' - not without some success, as the contributions to this publication will show. The experience gained in the process and the practical and theoretical problems that occur as a result for European unity are systematically studied for the first time here on a sound scientific basis. The authors study general problems of a typological, legal and institutional nature and selected areas of politics. The articles on European energy policy and environmental policy are of particular interest and have been analysed separately. (orig./HSCH).

  2. Digital Elevation Models (DEMs) for the main 8 Hawaiian Islands

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Digital elevation model (DEM) data are arrays of regularly spaced elevation values referenced horizontally either to a Universal Transverse Mercator (UTM) projection...

  3. VT USGS NED Hydro-flattened DEM (30 meter) - statewide

    Data.gov (United States)

    Vermont Center for Geographic Information — (Link to Metadata) VTHYDRODEM was created to produce a "hydrologically correct" DEM, compliant with the Vermont Hydrography Dataset (VHD) in support of the "flow...

  4. An Overview of the CapDEM Integrated Engineering Environment

    National Research Council Canada - National Science Library

    Lam, Sylvia; Poursina, Shiva; Spafford, Tim

    2005-01-01

    In order to gain a better understanding of the approach and the technology requirements to support collaborative engineering activities, the Collaborative Capability Definition, Engineering and Management (CapDEM...

  5. 2015 USACE NCMP Topobathy Lidar DEM: Avalon (NJ)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — These Digital Elevation Model (DEM) files contain rasterized topobathy lidar elevations at a 1 m grid size, generated from data collected by the Coastal Zone Mapping...

  6. IceBridge DMS L3 Photogrammetric DEM

    Data.gov (United States)

    National Aeronautics and Space Administration — The IceBridge DMS L3 Photogrammetric DEM (IODMS3) data set contains gridded digital elevation models and orthorectified images of Greenland derived from the Digital...

  7. 2013 USACE NCMP Topobathy Lidar DEM: Niihau (HI)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — These Digital Elevation Model (DEM) files contain rasterized topobathy lidar elevations at a 1 m grid size, generated from data collected by the Coastal Zone Mapping...

  8. 2015 USACE NCMP Topobathy Lidar DEM: Sand Island (WA)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — These Digital Elevation Model (DEM) files contain rasterized topobathy lidar elevations at a 1 m grid size, generated from data collected by the Coastal Zone Mapping...

  9. 2016 USACE NCMP Topobathy Lidar DEM: Gulf Coast (TX)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — These bare earth Digital Elevation Model (DEM) files contain rasterized topobathy lidar elevations at a 1 meter grid size, generated from data collected by the...

  10. 2016 NOAA Topobathy Lidar DEM: Upper Lake Michigan Islands

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This digital elevation model (DEM) was created from data collected by Leading Edge Geomatics using a Leica Chiroptera II Bathymetric & Topographic Sensor. The...

  11. 2015 USACE NCMP Topobathy Lidar DEM: Egmont Key (FL)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — These 1 m gridded bare earth Digital Elevation Model (DEM) files contain rasterized topobathy lidar elevations generated from data collected by the Coastal Zone...

  12. Greenland 5 km DEM, Ice Thickness, and Bedrock Elevation Grids

    Data.gov (United States)

    National Aeronautics and Space Administration — A Digital Elevation Model (DEM), ice thickness grid, and bedrock elevation grid of Greenland acquired as part of the PARCA program are available in ASCII text format...

  13. Modern magnetic resonance imaging of the liver; Modernes MR-Protokoll fuer die Leberbildgebung

    Energy Technology Data Exchange (ETDEWEB)

    Hedderich, D.M.; Maintz, D.; Persigehl, T. [Universitaetsklinikum Koeln, Institut fuer Diagnostische und Interventionelle Radiologie, Koeln (Germany); Weiss, K. [Universitaetsklinikum Koeln, Institut fuer Diagnostische und Interventionelle Radiologie, Koeln (Germany); Philips Healthcare Deutschland, Hamburg (Germany)

    2015-12-15

    Magnetic resonance imaging (MRI) of the liver has become an essential tool in the radiological diagnostics of both focal and diffuse diseases of the liver and is subject to constant change due to technological progress. Recently, important improvements could be achieved by innovations regarding MR hardware, sequences and postprocessing methods. The diagnostic spectrum of MRI could be broadened particularly due to new examination sequences, while at the same time scanning time could be shortened and image quality has been improved. The aim of this article is to explain both the technological background and the clinical application of recent MR sequence developments and to present the scope of a modern MRI protocol for the liver. (orig.) [German] Die Magnetresonanztomographie (MRT) der Leber ist in der radiologischen Diagnostik fokaler und diffuser Lebererkrankungen fest etabliert und untersteht einem steten Wandel durch den fortwaehrenden technischen Fortschritt. Durch Neuerungen bei der Hardware, den Sequenzen und der Bildnachverarbeitung konnten in den letzten Jahren deutliche Fortschritte erzielt werden. Insbesondere auf dem Gebiet der Untersuchungssequenzen kam es zu Entwicklungen, die das diagnostische Spektrum der MRT erweiterten, zu einer Verkuerzung der Scanzeit fuehrten und zu einer Verbesserung der Bildqualitaet beitrugen. Gegenstand dieses Artikels ist es, den technischen Hintergrund und die klinische Anwendung neuerer Sequenztechniken zu erklaeren und so die Moeglichkeiten und den Umfang eines modernen MRT-Untersuchungsprotokolls fuer die Leber darzustellen. (orig.)

  14. Boreal forest biomass classification with TanDEM-X

    OpenAIRE

    Torano Caicoya, Astor; Kugler, Florian; Papathanassiou, Kostas; Hajnsek, Irena

    2013-01-01

    High spatial resolution X-band interferometric SAR data from the TanDEM-X, in the operational DEM generation mode, are sensitive to forest structure and can therefore be used for thematic boreal forest classification of forest environments. The interferometric coherence in absence of temporal decorrelation depends strongly on forest height and structure. Due to the rather homogenous structure of boreal forest, forest biomass can be derived from forest height, on the basis of allometric equati...

  15. Neues aus dem Forschungsfeld Deutsch als Zweitsprache. Sammelrezension

    Directory of Open Access Journals (Sweden)

    Claus Altmayer

    2015-03-01

    Full Text Available Neues aus dem Forschungsfeld Deutsch als Zweitsprache. Sammelrezension (Teil 2 von Bernt Ahrenholz (Hrsg. (2009, Empirische Befunde zu DaZ-Erwerb und Sprachförderung. Beiträge aus dem 3. ‚Workshop Kinder mit Migrationshintergrund‘; Karen Schramm & Christoph Schröder (Hrsg. (2009, Empirische Zugänge zu Spracherwerb und Sprachförderung in Deutsch als Zweitsprache; Stefan Jeuk (2010, Deutsch als Zweitsprache in der Schule. Grundlagen - Diagnose – Förderung

  16. Enhanced ASTER DEMs for Decadal Measurements of Glacier Elevation Changes

    Science.gov (United States)

    Girod, L.; Nuth, C.; Kääb, A.

    2016-12-01

    Elevation change data is critical to the understanding of a number of geophysical processes, including glaciers through the measurement their volume change. The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) system on-board the Terra (EOS AM-1) satellite has been a unique source of systematic stereoscopic images covering the whole globe at 15m resolution and at a consistent quality for over 15 years. While satellite stereo sensors with significantly improved radiometric and spatial resolution are available today, the potential of ASTER data lies in its long consistent time series that is unrivaled, though not fully exploited for change analysis due to lack of data accuracy and precision. ASTER data are strongly affected by attitude jitter, mainly of approximately 4 and 30 km wavelength, and improving the generation of ASTER DEMs requires removal of this effect. We developed MMASTER, an improved method for ASTER DEM generation and implemented it in the open source photogrammetric library and software suite MicMac. The method relies on the computation of a rational polynomial coefficients (RPC) model and the detection and correction of cross-track sensor jitter in order to compute DEMs. Our sensor modeling does not require ground control points and thus potentially allows for automatic processing of large data volumes. When compared to ground truth data, we have assessed a ±5m accuracy in DEM differencing when using our processing method, improved from the ±30m when using the AST14DMO DEM product. We demonstrate and discuss this improved ASTER DEM quality for a number of glaciers in Greenland (See figure attached), Alaska, and Svalbard. The quality of our measurements promises to further unlock the underused potential of ASTER DEMs for glacier volume change time series on a global scale. The data produced by our method will thus help to better understand the response of glaciers to climate change and their influence on runoff and sea level.

  17. Dose management for X-ray and CT. Systematic comparison of exposition values from two institutes to diagnostic reference levels and use of results for optimisation of exposition; Dosismanagement fuer konventionelles Roentgen und CT. Systematischer Vergleich der Expositionswerte zweier radiologischer Institute mit den diagnostischen Referenzwerten und Verwendung der Ergebnisse zur Optimierung der Strahlenexposition bei diagnostischen Untersuchungen

    Energy Technology Data Exchange (ETDEWEB)

    Schaefer, S.; Alejandre-Lafont, E.; Krombach, G.A. [University Hospital Giessen (Germany). Dept. of Radiology; Schmidt, T. [University Hospital Giessen (Germany). Dept. of Neuroradiology; Gizewski, E.R. [University Hospital Innsbruck (Austria). Dept. of Neuroradiology; Fiebich, M. [University of Applied Sciences, Giessen (Germany). Inst. of Medical Physics and Radiation Protection

    2014-08-15

    Purpose: In 2 institutions exposure values were evaluated and compared with the 2010 updated diagnostic reference levels (DRL) and possibilities for decreasing the dose assessed. Materials and Methods: Mean exposure values obtained during a 3-month period were calculated for all modalities (X-ray: imaging plate system and digital detector; dual-source 64- and 16- slice spiral CT) as well as examination types were compared to old diagnostic reference levels in addition to DRLs introduced in 2010. Then 10 examinations of all modalities and types were accompanied by a medical physicist and optimized stepwise if necessary. Results: The mean values of X-ray examinations were above DRL. All accompanied examinations were beyond DRL except lateral lumbar spine (LSP) and lateral thoracic X-ray, which were elevated due to statistical outliers from morbidly obese patients or patients with metallic implants. For a-p LSP tube voltage was increased. While image quality was maintained, dose area product (DAP) was reduced by 50% to 123 ±61 cGy.cm{sup 2} for LSP a-p and 30% for lateral LSP to 229 ± 116 cGy.cm{sup 2}. For CT examinations, dose was below DRL. Accompanied examinations of the lumbar spine performed on a 16-slice spiral CT demonstrated a result 68% above DRL with dose length product (DLP) of 840 ± 252 cGy . cm. For optimization, pitch and tube voltage were stepwise increased and DLP reduced below DRL. Conclusion: Systematic analysis of our internal exposure values on the occasion of adaptation of DRL is crucial for prompt detection of exceeded values independently from assessment by the responsible authority and initiation of proper measures for decreasing exposure dose. Hereby active dose management is attained. (orig.)

  18. Short and long term supply curves for crude oil and the consequences for the market; Kurz- und langfristige Angebotskurven fuer Rohoel und die Konsequenzen fuer den Markt

    Energy Technology Data Exchange (ETDEWEB)

    Schlothmann, Daniel

    2016-03-08

    In this work, supply curves for 22 major oil producing countries were identified and then aggregated into global supply curves. According to the identified supply curves, almost all oil-producing oil projects currently under development in the study countries are also profitable at the current oil price of $ 35 to $ 40 per barrel, taking short-term marginal costs into account. However, if the price of oil remains at this level in the coming years, a supply bottleneck on the global oil market will occur until 2024, as the development of cost-intensive, unconventional deposits and of deposits in deep and very deep waters is necessary to meet future demand. In order to avoid such a supply bottleneck by 2024, an oil price of at least US $ 80 per barrel is required, according to the long-term market equilibrium determined. [German] In dieser Arbeit wurden Angebotskurven fuer 22 bedeutende Oelfoerderlaender ermittelt und anschliessend zu globalen Angebotskurven aggregiert. Gemaess den ermittelten Angebotskurven sind nahezu alle gegenwaertig in der Foerderphase befindlichen Oelprojekte in den Untersuchungslaendern auch beim aktuellen Oelpreis von 35 bis 40 US-$ je Barrel unter Beruecksichtigung der kurzfristigen Grenzkosten rentabel. Sollte der Oelpreis jedoch in den kommenden Jahren auf diesem Niveau verharren, wird es bis zum Jahr 2024 zu einem Angebotsengpass auf dem globalen Oelmarkt kommen, da zur Deckung der zukuenftigen Nachfrage die Erschliessung kostenintensiver, unkonventioneller Lagerstaetten und von Lagerstaetten in tiefen und sehr tiefen Gewaessern notwendig ist. Damit es bis zum Jahr 2024 nicht zu einem solchen Angebotsengpass kommt, ist gemaess des ermittelten langfristigen Marktgleichgewichts ein Oelpreis von mindestens 80 (2014er) US-$ je Barrel notwendig.

  19. Bayerisches Landesamt fuer Umweltschutz. Annual report 2004; Bayerisches Landesamt fuer Umweltschutz. Jahresbericht 2004

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2005-07-01

    Subjects: Central services; Air pollution abatement; Noise and vibration protection; Protection against non-ionising radiation; Waste management, land pollution and soil protection; Nuclear power and radiation protection; Conservation and landscaping; Central technical issues. The tasks of the Landesamt are illustrated by practical examples. [German] Das bayerische Landesamt fuer Umweltschutz stellt in seinem Jahresbericht die Aufgabenschwerpunkte und Taetigkeitwsfelder dar. Der Bericht gliedert sich in die Bereiche: Zentrale Dienste; Luftreinhaltung; Laerm- und Erschuetterungsschutz, Schutz vor nichtionisierender Strahlung; Abfallwirtschaft, Altlasten und Bodenschutz; Kernenergie und Strahlenschutz; Naturschutz und Landschaftspflege; Zentrale Fachaufgaben. Dabei werden anhand von konkreten Beispielen die Aufgaben des Landesamtes erlaeutert. (uke)

  20. Algumas anedotas sobre Demóstenes: uma releitura

    Directory of Open Access Journals (Sweden)

    Maddalena Vallozza

    2013-06-01

    Full Text Available Muitas das anedotas sobre Demóstenes estão relacionados a seus problemas de voz e a suas dificuldades no momento da hypokrisis. Eu proponho uma reinterpretação das páginas em que eles nos são transmitidos: de Quintiliano (11, 3, a principal testemunha, a Cícero (Orator 26 e 56-58, Brutus 142, De Oratore I 261 e III 213, do autor da seção sobre Demóstenes nas Vidas dos Dez Oradores (844 d-845 b à Vida de Demóstene, de Plutarco. Com base nisso, particularmente graças a Plutarco, que cita Hermipo e Demétrio de Fáleros, é possível formular a hipótese de que a tradição nasceu no Perípato, na área de interesses pela hypokrisis que demonstram o perdido Perì hypokríseos de Teofrasto e os fragmentos da Retórica de Demétrio de Fáleros.

  1. Controlling applied to information processing: quality management applied to IP projects and IP services; Informationsverarbeitungs-Controlling: Qualitaetsmanagement fuer IV-Projekte und fuer IV-Service

    Energy Technology Data Exchange (ETDEWEB)

    Becker, B. [Vereinigung Deutscher Elektrizitaetswerke e.V. (VDEW), Frankfurt am Main (Germany); Beckers, F. [Isar-Amperwerke AG, Muenchen (Germany); Dewald, N. [Bayernwerk AG, Muenchen (Germany); Hauffe, P. [Pfalzwerke AG, Ludwigshafen am Rhein (Germany); Hein, F. [EVS AG Stuttgart (Germany); Hoederath, M. [Vereinigte Elektrizitaetswerke Westfalen AG (VEW), Dortmund (Germany); Seyen, R. [Staedtische Werke Nuernberg GmbH (Germany)

    1998-01-12

    The working group on information processing (IP) basics (in German: `IV-Grundlagen`) has prepared this contribution dealing with controlling applied to information processing. This new report, on the one hand, takes into consideration the role of the organizational IP unit as one offering its services to all sections of a company. On the other hand, information processing as an operational infrastructure influencing all business processes becomes increasingly important with respect to the competitiveness of the EVU. Therefore, quality management applied to IP projects and IP services must support this development. (orig./RHM) [Deutsch] Der VDEW Arbeitskreis `IV-Grundlagen` hat einen Beitrag zum Controlling fuer die Informationsverarbeitung erstellt. Hier geht zum einen die Rolle der Organisationseinheit IV als Dienstleister fuer alle Unternehmensbereiche ein. Zum anderen gewinnt die Informationsverarbeitung als betriebliche Infrastruktur fuer alle Geschaeftsprozesse zunehmende Bedeutung fuer die Wettbewerbsfaehigkeit der EVU. Das Qualitaetsmanagement fuer IV-Projekte und fuer IV-Service muss dies unterstuetzen. (orig./RHM)

  2. Condition monitoring for offshore wind parks. A module for ensuring plant availability and risk minimization; Condition Monitoring fuer Offshore-Windparks. Ein Baustein zur Sicherstellung der Anlagenverfuegbarkeit und zur Risikominimierung

    Energy Technology Data Exchange (ETDEWEB)

    Hoering, B. [Deutsche Montan Technologie GmbH, Essen (Germany). Engine Logic Division

    2003-07-01

    The economic success of offshore wind energy and hence its competitiveness alongside conventional energy generation depends to a major extent on the reliability and availability of the installations. The profitability is determined, as is efficiency, by the costs for operation and maintenance over the whole plant life. Only plants with low operational management costs are therefore attractive in the long-term for the market and will help create customer satisfaction and loyalty. Because the costs for servicing and maintenance of offshore installations will be several times higher than for onshore facilities, the manufacturers and operators are called upon to think about new approaches to monitoring and maintaining offshore wind turbines. (orig.) [German] Der wirtschaftliche Erfolg der Offshore-Windenergie und somit die Konkurrenzfaehigkeit gegenueber konventioneller Energiegewinnung haengt massgeblich von der Zuverlaessigkeit und der Verfuegbarkeit der Anlagen ab. Die Wirtschaftlichkeit wird neben dem Wirkungsgrad durch die Kosten fuer Betrieb und Wartung waehrend der gesamten Anlagenlebensdauer bestimmt. Nur Anlagen mit geringen Betriebsfuehrungskosten sind daher fuer den Markt langfristig attraktiv und tragen zur Kundenzufriedenheit und -bindung bei. Weil die Kosten fuer Wartung und Instandhaltung von Offshore-Anlagen um ein vielfaches hoeher sein werden als bei Onshore-Anlagen, sind die Hersteller und Betreiber aufgefordert, ueber neue Konzepte der Windenergieanlagen-(WEA-)Ueberwachung und -instandhaltung nachzudenken. (orig.)

  3. Research parallel to 'Solarthermie 2000'. Development of a standardized acceptance test for industrial-scale solar thermal systems. Final report; Begleitforschung Solarthermie 2000. Entwicklung eines standardisierten Abnahmeverfahrens fuer solarthermische Grossanlagen. Abschlussbericht

    Energy Technology Data Exchange (ETDEWEB)

    Beikircher, T.; Benz, N.; Gut, M.; Schwenk, C.; Schoelkopf, W.

    2000-02-01

    First, a simple and efficient tool for projecting solar thermal power systems was to be developed by ITW Stuttgart (see separate ITW Stuttgart report). Parallel to this, a fast and simple method was to be developed for in-situ assessment or the annual yield of such systems, with a maximum error of 5 percent. The following steps were taken: 1. Development of a measuring system for the task; 2. Selection of methods of evaluation for the dynamic in situ short-term test; 3. Development and testing of the method in several industrial-scale systems and validation by comparison with the results of conventional measurements. The dynamic in situ short-term test method developed on this basis consists of six steps which are described in the report. The measuring accuracy depends on the correct function of the plant. [German] Zunaechst sollte fuer solarthermische Grossanlagen ein Katalog standardisierter Anlagenkonfigurationen erstellt und anschliessend in die gaengigen Planungswerkzeuge TRNSYS und TSOL uebertragen werden, um Planern ein einfaches und leistungsfaehiges Werkzeug zur Auslegung und zur Berechnung des GSR zur Verfuegung zu stellen. Damit sollen Planungsfehler aufgrund fehlender Erfahrung mit Solaranlagen vermieden und ein Standard fuer innovative Anlagenkonzepte verbreitet werden. Dieser Arbeitspunkt wurde ausschliesslich durch das ITW Stuttgart bearbeitet, siehe separater Berichtsteil des ITW Stuttgart. Parallel dazu war ein Testverfahren zu entwickeln, mit dem der Jahresertrag grosser thermischer Solaranlagen in situ, d.h. an der installierten Anlage vor Ort, ohne Eingriff in die Anlage, um die Gewaehrleistungspflicht des Anlagenbauers zu erhalten, auf 5% genau, um ein klares juristisches Kriterium fuer die Feststellung einer etwaigen Nachbesserungspflicht des Erbauers zu haben, kostenguenstig und in kurzer Zeit (maximal 6 Wochen) bestimmt werden kann. Hierzu waren folgende Arbeiten notwendig: 1. Entwicklung einer an die Aufgabenstellung angepassten Messtechnik

  4. Concept for inland wind power plants and wind parks - an example from North-Rhine Westphalia; Rahmenkonzept fuer Windkraftanlagen und -parks im Binnenland - ein Beipiel aus Nordrhein-Westfalen

    Energy Technology Data Exchange (ETDEWEB)

    Kleinschmidt, V. [UVP-Forschungsstelle, Fachgebiet Landschaftsoekologie und Landschaftsplanung, Fachbereich Raumplanung, Dortmund Univ. (Germany); Schauerte-Lueke, N. [UVP-Forschungsstelle, Fachgebiet Landschaftsoekologie und Landschaftsplanung, Fachbereich Raumplanung, Dortmund Univ. (Germany); Bergmann, R. [PRO TERRA TEAM Dienstleistungs- und Forschungsgesellschaft fuer Umwelttechnologien GmbH und Co. KG, Dortmund (Germany)

    1994-12-31

    Because of the increasing number of wind energy plants, environmental protection gets into a conflict of aims. On the one hand the change of the `Stromeinspeisungsgesetz` (law arranging the insertion of privately produced electricity into the public system) and the improved support for wind energy plants is to appreciate for the reasons of a reduction of CO{sub 2} and other harmful substances. But on the other hand wind energy plants have negative environmental effects onto the sites they are built on, as for example disturbances of the birds their breeding nest and feeding habitat, injury or death following collision with a blade or tower or simply disturbances of the landscape view. To avoid possible conflicts and increase the acceptance of wind energy plants, for the district of Soest a concept on a strategic level was developed, in which sites were determined as optimal, restrictional or excluding the construction of wind energy plants. This concept may not only help to avoid conflicts but may also play an active part in the promotion of wind energy plants by defining the sites suitable for wind energy plants and making them public. All in all the procedure of approval was simplified and therefore accelerated with the invention of this concept. (orig.) [Deutsch] Durch die zunehmende Anzahl von Windkraftanlagen geraet der Umweltschutz in einen Zielkonflikt. Einerseits ist die Aenderung des Stromeinspeisungsgesetzes und die verbesserte Foerderung fuer Windkraftanlagen aus Gruenden der CO{sub 2} und Schadstoffemissionseinsparungen sehr zu begruessen. Andererseits haben die Windkraftanlagen direkt an den Aufstellungsorten negative Auswirkungen auf die Umwelt, wie zum Beispiel Stoerung der Voegel in Nahrungs- und Bruthabitaten, Vogelschlag oder Beeintraechtigung des Landschaftsbildes. Um moegliche Konflikte weitgehend zu vermeiden und die Akzeptanz fuer Windkraftanlagen zu erhoehen, wurde fuer den Kreis Soest ein Rahmenkonzept erarbeitet, in dem Gunst-, Restriktions

  5. Evaluation of geological and economic conditions for the exploitation of hydrogeothermal resources; Evaluierung geowissenschaftlicher und wirtschaftlicher Bedingungen fuer die Nutzung hydrogeothermaler Ressourcen

    Energy Technology Data Exchange (ETDEWEB)

    Erbas, K; Hoth, P; Huenges, E; Schallenberg, K; Seibt, A [GeoForschungsZentrum Potsdam (Germany)

    1997-12-01

    The main aspects of the project: `Evaluation of geologic and economic conditions for utilizing low-enthalpy hydrogeothermal resources` are outlined. In this interdisciplinary project the social, economic, technological and geoscientific aspects are analyzed in terms of their complexity and their interrelations. The project will provide a basis for political decision making in the process of promoting and installing of geothermal heating plants. (orig.) [Deutsch] In dem auf drei Jahre angelegten und vom BMBF mit rund 3,6 Mio. DM gefoerderten Projekt werden die Moeglichkeiten der Nutzung niedrigthermaler Tiefenwaesser untersucht. Dadurch sollen die Voraussetzungen fuer eine breitere Umsetzung des vorhandenen Potentials an geothermischer Energie geschaffen werden. Es werden die Projektziele, die Projektstruktur, uebergeordnete Arbeitsschwerpunkte und erste Schlussfolgerungen nach einem Jahr Projektlaufzeit dargestellt. (orig.)

  6. Harmonisation of fire testing of conveyor belts for underground applications within the EC; Harmonisierung der brandtechnischen Pruefverfahren von Foerdergurten fuer den Einsatz unter Tage innerhalb der EG

    Energy Technology Data Exchange (ETDEWEB)

    Foit, W. [DMT-Gesellschaft fuer Forschung und Pruefung mbH, Dortmund (Germany). Fachstelle fuer Brand- und Explosionsschutz unter Tage - Versuchsgrube Tremonia

    1998-12-01

    The mining countries of the EC still have different regulations for fire testing of conveyor belts. The test methods will be harmonized for the Common Market, and requirements on conveyor belts will be standardized within the EC. A new EC standard will be drawn up. [Deutsch] Zur Zeit sind in den bergbaubetreibenden Laendern der EG noch unterschiedliche Verfahren zur brandtechnischen Pruefung von Foerdergurten vorgeschrieben. Mit dem Inkrafttreten des Gemeinsamen Marktes und der damit zusammenhaengenden Forderung nach Abbau von Handelshemmnissen sollen diese Pruefverfahren harmonisiert werden. Ziel ist es, die an die Foerdergurte zu stellenden brandtechnischen Anforderungen innerhalb der EG zu vereinheitlichen. Es soll deshalb eine europaeische Norm zur Beurteilung des Brandverhaltens und der Brandausbreitung an Foerdergurten fuer den Kohlenbergbau unter Tage erstellt werden. (orig./MSK)

  7. Novel application of DEM to modelling comminution processes

    International Nuclear Information System (INIS)

    Delaney, Gary W; Cleary, Paul W; Sinnott, Matt D; Morrison, Rob D

    2010-01-01

    Comminution processes in which grains are broken down into smaller and smaller sizes represent a critical component in many industries including mineral processing, cement production, food processing and pharmaceuticals. We present a novel DEM implementation capable of realistically modelling such comminution processes. This extends on a previous implementation of DEM particle breakage that utilized spherical particles. Our new extension uses super-quadric particles, where daughter fragments with realistic size and shape distributions are packed inside a bounding parent super-quadric. We demonstrate the flexibility of our approach in different particle breakage scenarios and examine the effect of the chosen minimum resolved particle size. This incorporation of the effect of particle shape in the breakage process allows for more realistic DEM simulations to be performed, that can provide additional fundamental insights into comminution processes and into the behaviour of individual pieces of industrial machinery.

  8. EVALUATING THE ACCURACY OF DEM GENERATION ALGORITHMS FROM UAV IMAGERY

    Directory of Open Access Journals (Sweden)

    J. J. Ruiz

    2013-08-01

    Full Text Available In this work we evaluated how the use of different positioning systems affects the accuracy of Digital Elevation Models (DEMs generated from aerial imagery obtained with Unmanned Aerial Vehicles (UAVs. In this domain, state-of-the-art DEM generation algorithms suffer from typical errors obtained by GPS/INS devices in the position measurements associated with each picture obtained. The deviations from these measurements to real world positions are about meters. The experiments have been carried out using a small quadrotor in the indoor testbed at the Center for Advanced Aerospace Technologies (CATEC. This testbed houses a system that is able to track small markers mounted on the UAV and along the scenario with millimeter precision. This provides very precise position measurements, to which we can add random noise to simulate errors in different GPS receivers. The results showed that final DEM accuracy clearly depends on the positioning information.

  9. Influence of Terraced area DEM Resolution on RUSLE LS Factor

    Science.gov (United States)

    Zhang, Hongming; Baartman, Jantiene E. M.; Yang, Xiaomei; Gai, Lingtong; Geissen, Viollette

    2017-04-01

    Topography has a large impact on the erosion of soil by water. Slope steepness and slope length are combined (the LS factor) in the universal soil-loss equation (USLE) and its revised version (RUSLE) for predicting soil erosion. The LS factor is usually extracted from a digital elevation model (DEM). The grid size of the DEM will thus influence the LS factor and the subsequent calculation of soil loss. Terracing is considered as a support practice factor (P) in the USLE/RUSLE equations, which is multiplied with the other USLE/RUSLE factors. However, as terraces change the slope length and steepness, they also affect the LS factor. The effect of DEM grid size on the LS factor has not been investigated for a terraced area. We obtained a high-resolution DEM by unmanned aerial vehicles (UAVs) photogrammetry, from which the slope steepness, slope length, and LS factor were extracted. The changes in these parameters at various DEM resolutions were then analysed. The DEM produced detailed LS-factor maps, particularly for low LS factors. High (small valleys, gullies, and terrace ridges) and low (flats and terrace fields) spatial frequencies were both sensitive to changes in resolution, so the areas of higher and lower slope steepness both decreased with increasing grid size. Average slope steepness decreased and average slope length increased with grid size. Slope length, however, had a larger effect than slope steepness on the LS factor as the grid size varied. The LS factor increased when the grid size increased from 0.5 to 30-m and increased significantly at grid sizes >5-m. The LS factor was increasingly overestimated as grid size decreased. The LS factor decreased from grid sizes of 30 to 100-m, because the details of the terraced terrain were gradually lost, but the factor was still overestimated.

  10. Fuel cells for the electricity supply of plants remote from the grid; Brennstoffzellen fuer die Elektrizitaetsversorgung von netzfernen Anlagen

    Energy Technology Data Exchange (ETDEWEB)

    Ledjeff, K

    1996-12-31

    The solar house at Freiburg, which is independent for energy, obtains all its energy only from the radiation impinging on the outside of the building. The space heating, provision of hot water, energy for cooking and electricity are provided by conversion of solar energy. A photo-electric generator supplies electricity which, apart from direct consumption, can be stored in a lead battery and the hydrogen system. The hydrogen system is the last link in the chain of the energy converter and represents the only energy supply if the thermal and electrical systems cannot any longer be supplied by the sun. The hydrogen system must therefore cover the energy demand in winter, consisting of a small heater for space heating and of course the fuel cell for providing electricity. The ideal fuel cell system for the solar house, which is independent for energy, is the PEMFC with an output of 500 W-1 kW. (orig./MM) [Deutsch] Das Energieautarke Solarhaus in Freiburg bezieht die gesamte Energie nur aus der auf die Gebaeudehuelle auftreffende Strahlung. Die Raumheizung, die Warmwasserbereitung, die Energie zum Kochen und der elektrische Strom werden durch die Umwandlung von Sonnenenergie bereitgestellt. Ein Photovoltaik-Generator liefert elektrische Energie, die neben dem direkten Verbrauch in eine Bleibatterie und das Wasserstoffsystem zur Speicherung eingespeist werden kann. Die Wasserstoffspeicherung erfolgt als Gas bei einem Druck von 30 bar. Das Wasserstoffsystem ist das letzte Glied in der Kette der Energiewandler und stellt den einzigen Energievorrat dar, wenn die thermischen und elektrischen Systeme nicht mehr solar versorgt werden koennen. Das Wasserstoffsystem muss daher den Energiebedarf im Winter decken, das sich ein kleiner Nachheizer fuer die Raumheizung und natuerlich die Brennstoffzelle zur Bereitstellung elektrischer Energie. Das ideale Brennstoffzellensystem fuer das Energieautarke Solarhaus ist die PEMFC mit einer Leistung von 500 W-1 kW. (orig./MM)

  11. Marketing strategies and consumer preferences for fertilizers and soils from organic residues of biogas production; Vermarktungsstrategien und Konsumentenpraeferenzen fuer Duenger und Erden aus organischen Reststoffen der Biogasproduktion

    Energy Technology Data Exchange (ETDEWEB)

    Dahlin, Johannes

    2017-07-13

    The aim of this thesis is to show marketing possibilities for fermentation products and to generate sepcific recommendations for potential producers and marketers of fermentation products. Since the marketing of fermenting products is largely unexplored and a research gap, this project was launched with an exploratory phase. After the exploratory phase, private gardeners were identified as a promising customer group. Knowledge about the preferences of private gardeners when purchasing soil and fertilizer are crucial for the market success of processed fermentation products. In order to fathom the decision-making behavior of this potential customer group, personal interviews were conducted with private gardeners. These results enable potential producers and marketers of fermentation products to create a product that is in demand on the market because it meets the needs of potential consumers. The personal preferences, however, can be very different, for which reason a segmentation into different groups with similar preferences is made. [German] Ziel dieser Arbeit ist es, Vermarktungsmoeglichkeiten fuer Gaerprodukte aufzuzeigen und konkrete Empfehlungen fuer potenzielle Hersteller und Vermarkter von Gaerprodukten zu generieren. Da die Vermarktung von Gaerprodukten weitestgehend unerforscht ist und eine Forschungsluecke darstellt, wurde dieses Vorhaben mit einer explorativen Phase gestartet. Nach der explorativen Phase wurden Privatgaertner als vielversprechende Kundengruppe identifiziert. Kenntnisse ueber die Praeferenzen von Privatgaertnern beim Kauf von Erden und Duengern sind entscheidend fuer den Markterfolg von aufbereiteten Gaerprodukten. Um das Entscheidungsverhalten dieser potenziellen Kundengruppe naeher zu ergruenden, wurden persoenliche Interviews mit Privatgaertnern durchgefuehrt. Diese Ergebnisse ermoeglichen es potenziellen Herstellern und Vermarktern von Gaerprodukten ein Produkt zu kreieren, das auf dem Markt nachgefragt wird, da es den Wuenschen der

  12. Discrete Element Modeling (DEM) of Triboelectrically Charged Particles: Revised Experiments

    Science.gov (United States)

    Hogue, Michael D.; Calle, Carlos I.; Curry, D. R.; Weitzman, P. S.

    2008-01-01

    In a previous work, the addition of basic screened Coulombic electrostatic forces to an existing commercial discrete element modeling (DEM) software was reported. Triboelectric experiments were performed to charge glass spheres rolling on inclined planes of various materials. Charge generation constants and the Q/m ratios for the test materials were calculated from the experimental data and compared to the simulation output of the DEM software. In this paper, we will discuss new values of the charge generation constants calculated from improved experimental procedures and data. Also, planned work to include dielectrophoretic, Van der Waals forces, and advanced mechanical forces into the software will be discussed.

  13. Characterization of a composite membrane for the conditioning of refined and natural gas; Charakterisierung einer Kompositmembran fuer die Konditionierung von Raffinerie- und Erdgas

    Energy Technology Data Exchange (ETDEWEB)

    Schonert, M. [GKSS-Forschungszentrum Geesthacht GmbH (Germany). Inst. fuer Chemie

    1999-07-01

    The present diploma investigates the permeation behaviour of gas through a composite membrane. The selective layer of polyoctylmethylsiloxan is coated on porous support polyacrylnitrile layer. As this membrane should be used for the conditioning of refined and natural gas, (hydrocarbon-dew-pointing), the interest is focussed upon the permeation behaviour of methane and higher hydrocarbon. The permeability of single gas will be determined using the pressure increase method. The description of the permeability will be done through the free volume model. This model is a medium to describe the permeation behaviour of gas mixtures mathematically taking into account the real gas behaviour. The maximum feed pressure is 60 bar. It will be shown that the permeability of a multi component mixtures can be calculated satisfactorily with reduced mutual influence of the gas molecules. (orig.) [German] In der vorliegenden Arbeit wird das Permeationsverhalten von Gasen durch eine Kompositmembran untersucht. Die selektive Schicht aus Polyoctylmethylsiloxan ist auf einer poroesen Polyacrylnitril-Traegerschicht aufgebracht. Da die Membran fuer die Konditionierung von Raffinerie- und Erdgas (KW-Taupunkteinstellung) eingesetzt werden soll, liegt das Interesse in dem Permeationsverhalten von Methan und den hoeheren Kohlenwasserstoffen. Es wird die Permeabilitaet von Reingas mit Hilfe der Druckanstiegsmethode bestimmt. Die Beschreibung der Permeabilitaet geschieht durch das Modell des Freien Volumens. Hiermit wird versucht, das Permeationsverhalten von Gasgemischen unter Beruecksichtigung des Realgasverhaltens rechnerisch zu beschreiben. Der maximale Feeddruck betraegt 60 bar. Es wird gezeigt, dass sich die Permeabilitaet fuer ein Mehrkomponentengemisch mit reduzierter gegenseitiger Beeinflussung der Gasmolekuele zufriedenstellend berechnen laesst. (orig.)

  14. A dynamic model for the nitrification of higher concentrated wastewaters and control by experiments; Ein dynamisches Prozessmodell fuer die Nitrifikation hoeher belasteter Abwaesser und praktische Anwendungen

    Energy Technology Data Exchange (ETDEWEB)

    Pirsing, A. [Siemens AG, Anlagentechnik ANL A73, Karlsruhe (Germany); Wiesmann, U. [Inst. fuer Verfahrenstechnik, Technische Univ. Berlin (Germany)

    1995-07-01

    Wastewater with high ammonia concentration is produced by many industries. However, the removal of higher loaded industrial effluents still poses many questions. Dynamic modelling is helpful to understand the process of nitrification and to investigate algorithms of process control. Therefore, a dynamic model of nitrification in completely mixed reactors is proposed based on mass balances for the components ammonia, nitrite, nitrate, dissolved oxygen, carbon dioxide, pH, nitrosomonas and nitrobacter. The biological reaction rates consider oxygen limitation and substrate inhibition. The process model presented it tested by lab scale experiments using an aerated stirred tank reactor. (orig.) [Deutsch] Es wird ein mathematisches Prozessmodell fuer die Nitrifikation von Industrieabwaessern mit hoher Ammoniumkonzentration vorgestellt, das bislang vernachlaessigte Phaenomene wie z.B. Substratueberschusshemmung und Sauerstofflimitierung beruecksichtigt. Als theoretische Grundlage dienen Bilanzgleichungen fuer insgesamt acht Komponenten. Das Simulationsmodell wird durch den Vergleich mit experimentellen Ergebnissen aus einer Laborversuchsanlage auf seine Richtigkeit ueberprueft. In dem Beitrag werden auf diesem Modell basierende Anwendungsbeispiele behandelt. So werden die Moeglichkeiten der dynamischen Prozesssimulation zur Steigerung der Betriebsstabilitaet bei schwankenden Zulaufkonzentrationen und -volumenstroemen gezeigt. Darueber hinaus gelingt die Rekonstruktion der Umsatzraten r(O{sub 2}) und r(NH{sub 3}) aus der Sauerstoff- und Kohlendioxidkonzentration in der Abluft. (orig.)

  15. Operating experience for a closed-circuit interconnected system for flue gas desulphurization at Klingenberg heating power station; Betriebserfahrungen zu einem Kreislaufverbundsystem fuer die Rauchgasentschwefelung im Heizkraftwerk Klingenberg

    Energy Technology Data Exchange (ETDEWEB)

    Hultsch, T [Berliner Kraft- und Licht (BEWAG)-AG, Heizkraftwerk Klingenberg, Berlin (Germany); Mueller, U [BDAG Balcke-Duerr AG, Ratingen (Germany)

    1995-05-01

    The cleaning of flue gases imposes extreme demands on the material concerned. By keeping below the acid dewpoint, this leads to condensation of acid products on the heating surfaces. The correct selection of the appropriate material is decisive for the availability of the overall plant. In the case of the application described in this paper, it has been possible to show that nickel-based alloys are outstandingly suitable for withstanding those kinds of stresses over many years. However, independently of this, it is valid to test material selection for each individual case of application. (orig.) [Deutsch] Die Reinigung von Rauchgasen stellt extreme Anforderungen an den jeweiligen Werkstoff. Durch die Unterschreitung des Saeuretaupunktes kommt es dabei zu einer Kondensation der Saeureprodukte auf den Heizflaechen. Die Auswahl des geeigneten Materials ist entscheidend fuer die Verfuegbarkeit der Gesamtanlage. In dem hier dargestellten Anwendungsfall konnte gezeigt werden, dass Nickelbasis-Legierungen hervorragend geeignet sind, einer derartigen Beanspruchung ueber Jahre hinaus standzuhalten. Unabhaengig hiervon gilt es jedoch, fuer die Materialauswahl jeden Anwendungsfall einzeln zu pruefen. (orig.)

  16. Further development and optimisation of the free piston concept for Vuilleumier heat pumps. Final report; Weiterentwicklung und Optimierung des Freikolben-Konzeptes fuer Vuilleumier-Waermepumpen. Abschlussbericht

    Energy Technology Data Exchange (ETDEWEB)

    Kuehl, H.D.; Ruether, J.

    2003-09-01

    The project was aimed at the development of know-how for commercial application of Vuilleumier heat pumps in heating systems for domestic buildings. The investigations were successful. The only aspect that requires further investigation are the static gas stores. (orig.) [German] Das Ziel dieses Projektes, die Erarbeitung des fuer eine zukuenftige kommerzielle Umsetzung der Vuilleumier-Freikolbentechnik in Waermepumpen zur Gebaeudeheizung erforderlichen Know-how, kann auf Grund der vorliegenden Ergebnisse in grossen Teilen als erreicht bezeichnet werden. Lediglich im Bereich der statischen Gaslager besteht noch Bedarf an weiterfuehrenden, quantitativen Untersuchungen ihres Tragverhaltens, waehrend insbesondere die Fragestellungen im Bereich der thermodynamischen sowie der waerme-, stroemungs- und regelungstechnischen Auslegung und Gestaltung zufriedenstellend geklaert werden konnten. Abgesehen von einigen weiteren Detailoptimierungen und der noch ausstehenden, umfassenden experimentellen Dokumentation der neuen Versuchsmaschine ist eine Weiterfuehrung der Arbeiten nicht mehr als reines Hochschulprojekt, sondern nur mit Industriebeteiligung und unter besonderer Beruecksichtigung fertigungs- und produktionstechnischer Aspekte sinnvoll. Der erreichte Entwicklungsstand mit zwei funktionsfaehigen Versuchsanlagen und dem im Verlaufe dieses Projektes erworbenen, fuer eine kommerzielle Produktentwicklung verfuegbaren Know-how bietet hierfuer eine gute Grundlage. (orig.)

  17. Coastal Digital Elevation Models (DEMs) for tsunami hazard assessment on the French coasts

    Science.gov (United States)

    Maspataud, Aurélie; Biscara, Laurie; Hébert, Hélène; Schmitt, Thierry; Créach, Ronan

    2015-04-01

    Building precise and up-to-date coastal DEMs is a prerequisite for accurate modeling and forecasting of hydrodynamic processes at local scale. Marine flooding, originating from tsunamis, storm surges or waves, is one of them. Some high resolution DEMs are being generated for multiple coast configurations (gulf, embayment, strait, estuary, harbor approaches, low-lying areas…) along French Atlantic and Channel coasts. This work is undertaken within the framework of the TANDEM project (Tsunamis in the Atlantic and the English ChaNnel: Definition of the Effects through numerical Modeling) (2014-2017). DEMs boundaries were defined considering the vicinity of French civil nuclear facilities, site effects considerations and potential tsunamigenic sources. Those were identified from available historical observations. Seamless integrated topographic and bathymetric coastal DEMs will be used by institutions taking part in the study to simulate expected wave height at regional and local scale on the French coasts, for a set of defined scenarii. The main tasks were (1) the development of a new capacity of production of DEM, (2) aiming at the release of high resolution and precision digital field models referred to vertical reference frameworks, that require (3) horizontal and vertical datum conversions (all source elevation data need to be transformed to a common datum), on the basis of (4) the building of (national and/or local) conversion grids of datum relationships based on known measurements. Challenges in coastal DEMs development deal with good practices throughout model development that can help minimizing uncertainties. This is particularly true as scattered elevation data with variable density, from multiple sources (national hydrographic services, state and local government agencies, research organizations and private engineering companies) and from many different types (paper fieldsheets to be digitized, single beam echo sounder, multibeam sonar, airborne laser

  18. A regional climate model for the Arctic and the North Atlantic; Ein regionales Klimamodell fuer die Arktis und den Nordatlantik

    Energy Technology Data Exchange (ETDEWEB)

    Berndt, H

    2001-07-01

    corresponding a low influence of the lateral boundary conditions. Overall, REMO has proved to be a useful tool for a better understanding of the processes in the Arctic and the North Atlantic. Further adjustment of the parameterizations seems to be necessary. Other components of the climate system have to be considered to successfully describe the complex feedbacks and processes of the climate subsystems. (orig.) [German] Die Arktis und der subpolare Nordatlantik bilden mit ihren komplexen Mechanismen und Rueckkopplungen eine wichtige Komponente unseres Klimasystems. Aufgrund der geringen Beobachtungsdichte und der niedrigen Aufloesung globaler Klimamodelle, bietet sich der Einsatz hoeher aufloesender regionaler Klimamodelle an. Das hier verwendete regionale Klimamodell (REMO) basiert auf dem frueheren Wettervorhersagemodell EM des Deutschen Wetterdienstes (DWD) und wurde am Max-Planck-Institut fuer Meteorologie (MPIfM) in Hamburg weiterentwickelt. Fuer die Simulation subskaliger Prozesse stehen zwei Saetze physikalischer Parametrisierungen zur Verfuegung - die urspruenglich verwendete DWD-Physik und die ECHAM4-Physik des MPIfM. Der dynamische Teil ist in beiden Faellen identisch. REMO wird zunaechst an das neue Untersuchungsgebiet angepasst. Die neue Konfiguration beruecksichtigt bei einer horizontalen Aufloesung von 0.5 x 0.5 und 145 x 121 Glitterpunkten die gesamte Arktis und den Nordatlantik bis etwa 40 N. Mit DWD- und ECHAM4-Physik im Vorhersage- und Klima-Mode werden unterschiedliche Zeitraeume simuliert. Als Antriebsdaten werden die NCEP/NCAR-Reanalysen mit einer zeitlichen Aufloesung von 6 Stunden verwendet. Da REMO bisher nur in gemaessigtem Klima eingesetzt wurde, steht der Test des Modells unter den extremen Bedingungen der hohen Breiten im Vordergrund. Beim Vergleich mit Schiffsbeobachtungen aus der Labrador-See liegt REMO deutlich dichter an den Messungen als die Antriebsdaten. Unrealistisch hohe Feuchten in den Reanalysen sind vermutlich die Ursache erhoehter

  19. Precise baseline determination for the TanDEM-X mission

    Science.gov (United States)

    Koenig, Rolf; Moon, Yongjin; Neumayer, Hans; Wermuth, Martin; Montenbruck, Oliver; Jäggi, Adrian

    The TanDEM-X mission will strive for generating a global precise Digital Elevation Model (DEM) by way of bi-static SAR in a close formation of the TerraSAR-X satellite, already launched on June 15, 2007, and the TanDEM-X satellite to be launched in May 2010. Both satellites carry the Tracking, Occultation and Ranging (TOR) payload supplied by the GFZ German Research Centre for Geosciences. The TOR consists of a high-precision dual-frequency GPS receiver, called Integrated GPS Occultation Receiver (IGOR), and a Laser retro-reflector (LRR) for precise orbit determination (POD) and atmospheric sounding. The IGOR is of vital importance for the TanDEM-X mission objectives as the millimeter level determination of the baseline or distance between the two spacecrafts is needed to derive meter level accurate DEMs. Within the TanDEM-X ground segment GFZ is responsible for the operational provision of precise baselines. For this GFZ uses two software chains, first its Earth Parameter and Orbit System (EPOS) software and second the BERNESE software, for backup purposes and quality control. In a concerted effort also the German Aerospace Center (DLR) generates precise baselines independently with a dedicated Kalman filter approach realized in its FRNS software. By the example of GRACE the generation of baselines with millimeter accuracy from on-board GPS data can be validated directly by way of comparing them to the intersatellite K-band range measurements. The K-band ranges are accurate down to the micrometer-level and therefore may be considered as truth. Both TanDEM-X baseline providers are able to generate GRACE baselines with sub-millimeter accuracy. By merging the independent baselines by GFZ and DLR, the accuracy can even be increased. The K-band validation however covers solely the along-track component as the K-band data measure just the distance between the two GRACE satellites. In addition they inhibit an un-known bias which must be modelled in the comparison, so the

  20. Dem der kan,- men ikke vil

    DEFF Research Database (Denmark)

    Crone, Sara Tine

    2007-01-01

    in focusing on Children at risk and a concept of a so called Social inheritance disconnects the understanding of the origin of problem from society and connects it to the reaction and behaviour of the parents/family. These tendencies in the Danish research can also be seen as promoting social interventions...... National Institute of Social research. In analyzing three dominating research programmes a change in the basis of understanding the developments of social problems is discovered. From understanding social problems connected to more structural condition in society a shift is traced as the research...

  1. Identification of areas and time intervals for inservice inspections; Auswahl der Pruefbereiche und -intervalle fuer wiederkehrende Pruefungen

    Energy Technology Data Exchange (ETDEWEB)

    Metzner, K J [Preussische Elektrizitaets-AG (Preussenelektra), Hannover (Germany); Herter, K H [Stuttgart Univ. (Germany). Staatliche Materialpruefungsanstalt; Schoeckle, F [Amtec Messtechnischer Service, Lauffen (Germany)

    1998-11-01

    von Schadensmechanismen), koennen die wiederkehrenden Pruefungen vorwiegend zielgerichtet hinsichtlich der Folgen dieser moeglichen Schadensmechanismen eingesetzt werden. Ist keine oder nur eine eingeschraenkte Ueberwachung vorhanden, sind die moeglichen Folgen eventuell bisher unbekannter Schadensmechanismen durch erweiterte und ggf. vagabundierende WKP-Massnahmen zu ueberpruefen. Fuer die Auswahl von Pruefbereichen und die Festlegung von Pruefintervallen ist die Verwendung der Auslegungsanalysen, in denen konservativ spezifizierte Belastungen und Lastfallhaeufigkeiten (fuer Betriebs- und Stoerfaelle) beruecksichtigt wurden, nicht geeignet. Es ist vielmehr von den `Ist-Beanspruchungen` aus dem bisherigen Betrieb in Verbindung mit der Kenntnis ueber die vorhandene `Istqualitaet` aus der Herstellung und der bisherigen Betriebszeit auszugehen. Die vorhandenen Unterlagen sind entsprechend aufzubereiten, so dass eine Grundlage fuer die Neubewertung der bisherigen ZfP-Massnahmen gegeben ist. (orig./MM)

  2. Max-Planck-Institut fuer Physik. Werner-Heisenberg-Institut. Annual report 1994

    International Nuclear Information System (INIS)

    1995-05-01

    After a short introduction, the projects and activitites of the scientific and technical departments are presented. The spectrum of theoretical studies ranges from problems of particle physics and field theory to astrophysical problems. The experimental activities focus mainly on accelerated particles and detectors for high-energy physics. The 1994 annual report also contains staff reports and reports on general activities in the year under report. (DG) [de

  3. Resource Management in Diffserv On DemAnd (RODA) PHR

    NARCIS (Netherlands)

    Westberg, L.; Jacobsson, M.; de Kogel, M.; Oosthoek, S.; Partain, D.; Rexhepi, V.; Wallentin, P.; Karagiannis, Georgios

    The purpose of this draft is to present the Resource Management in Diffserv (RMD) On DemAnd (RODA) Per Hop Reservation (PHR) protocol. The RODA PHR protocol is used on a per-hop basis in a Differentiated Services (Diffserv) domain and extends the Diffserv Per Hop Behavior (PHB) with resource

  4. Spatial Characterization of Landscapes through Multifractal Analysis of DEM

    Directory of Open Access Journals (Sweden)

    P. L. Aguado

    2014-01-01

    Full Text Available Landscape evolution is driven by abiotic, biotic, and anthropic factors. The interactions among these factors and their influence at different scales create a complex dynamic. Landscapes have been shown to exhibit numerous scaling laws, from Horton’s laws to more sophisticated scaling of heights in topography and river network topology. This scaling and multiscaling analysis has the potential to characterise the landscape in terms of the statistical signature of the measure selected. The study zone is a matrix obtained from a digital elevation model (DEM (map 10 × 10 m, and height 1 m that corresponds to homogeneous region with respect to soil characteristics and climatology known as “Monte El Pardo” although the water level of a reservoir and the topography play a main role on its organization and evolution. We have investigated whether the multifractal analysis of a DEM shows common features that can be used to reveal the underlying patterns and information associated with the landscape of the DEM mapping and studied the influence of the water level of the reservoir on the applied analysis. The results show that the use of the multifractal approach with mean absolute gradient data is a useful tool for analysing the topography represented by the DEM.

  5. Eine neue Tornaria aus dem Ostindischen Archipel (Tornaria Sunieri)

    NARCIS (Netherlands)

    Stiasny, G.

    1921-01-01

    Da aus dem malayischen Archipel durch die Siboga-Monographie Spengels (2) zwar eine Anzahl Enteropneusten, jedoch nur eine einzige Tornaria bekannt worden ist, war anzunehmen, dass noch andere Tornarien in diesem Gebiete nachzuweisen sein würden. Von dieser Erwartung ausgehend wandte ich mich an

  6. Artificial terraced field extraction based on high resolution DEMs

    Science.gov (United States)

    Na, Jiaming; Yang, Xin; Xiong, Liyang; Tang, Guoan

    2017-04-01

    With the increase of human activities, artificial landforms become one of the main terrain features with special geographical and hydrological value. Terraced field, as the most important artificial landscapes of the loess plateau, plays an important role in conserving soil and water. With the development of digital terrain analysis (DTA), there is a current and future need in developing a robust, repeatable and cost-effective research methodology for terraced fields. In this paper, a novel method using bidirectional DEM shaded relief is proposed for terraced field identification based on high resolution DEM, taking Zhifanggou watershed, Shannxi province as the study area. Firstly, 1m DEM is obtained by low altitude aerial photogrammetry using Unmanned Aerial Vehicle (UAV), and 0.1m DOM is also obtained as the test data. Then, the positive and negative terrain segmentation is done to acquire the area of terraced field. Finally, a bidirectional DEM shaded relief is simulated to extract the ridges of each terraced field stages. The method in this paper can get not only polygon feature of the terraced field areas but also line feature of terraced field ridges. The accuracy is 89.7% compared with the artificial interpretation result from DOM. And additional experiment shows that this method has a strong robustness as well as high accuracy.

  7. Evaluating DEM results with FEM perspectives of load : soil interaction

    NARCIS (Netherlands)

    Tadesse, D.

    2004-01-01

    Keywords: Load - soil interaction, soil structure, soil mechanical properties, FEM (Finite Element Method), Plaxis (Finite Element Code), granular particles, shear stress, DEM (Distinct Element Method),

  8. Estimating River Surface Elevation From ArcticDEM

    Science.gov (United States)

    Dai, Chunli; Durand, Michael; Howat, Ian M.; Altenau, Elizabeth H.; Pavelsky, Tamlin M.

    2018-04-01

    ArcticDEM is a collection of 2-m resolution, repeat digital surface models created from stereoscopic satellite imagery. To demonstrate the potential of ArcticDEM for measuring river stages and discharges, we estimate river surface heights along a reach of Tanana River near Fairbanks, Alaska, by the precise detection of river shorelines and mapping of shorelines to land surface elevation. The river height profiles over a 15-km reach agree with in situ measurements to a standard deviation less than 30 cm. The time series of ArcticDEM-derived river heights agree with the U.S. Geological Survey gage measurements with a standard deviation of 32 cm. Using the rating curve for that gage, we obtain discharges with a validation accuracy (root-mean-square error) of 234 m3/s (23% of the mean discharge). Our results demonstrate that ArcticDEM can accurately measure spatial and temporal variations of river surfaces, providing a new and powerful data set for hydrologic analysis.

  9. DEM-based research on the landform features of China

    Science.gov (United States)

    Tang, Guoan; Liu, Aili; Li, Fayuan; Zhou, Jieyu

    2006-10-01

    Landforms can be described and identified by parameterization of digital elevation model (DEM). This paper discusses the large-scale geomorphological characteristics of China based on numerical analysis of terrain parameters and develop a methodology for characterizing landforms from DEMs. The methodology is implemented as a two-step process. First, terrain variables are derived from a 1-km DEM in a given statistical unit including local relief, the earth's surface incision, elevation variance coefficient, roughness, mean slope and mean elevation. Second, every parameter regarded as a single-band image is combined into a multi-band image. Then ISODATA unsupervised classification and the Bayesian technique of Maximum Likelihood supervised classification are applied for landform classification. The resulting landforms are evaluated by the means of Stratified Sampling with respect to an existing map and the overall classification accuracy reaches to rather high value. It's shown that the derived parameters carry sufficient physiographic information and can be used for landform classification. Since the classification method integrates manifold terrain indexes, conquers the limitation of the subjective cognition, as well as a low cost, apparently it could represent an applied foreground in the classification of macroscopic relief forms. Furthermore, it exhibits significance in consummating the theory and the methodology of DEMs on digital terrain analysis.

  10. Grain sedimentation with SPH-DEM and its validation

    NARCIS (Netherlands)

    Robinson, M.J.; Luding, Stefan; Ramaioli, Marco; Yu, A; Dong, K; Yang, R; Luding, S

    2013-01-01

    Our mesoscale simulation method [M. Robinson, S. Luding, and M. Ramaioli, submitted (2013)] for multiphase fluid-particle flows couples Smoothed Particle Hydrodynamics (SPH) and the Discrete Element Method (DEM) and enjoys the flexibility of meshless methods, such as being capable to handling free

  11. Visions for the car of the future; Visionen fuer das Automobil der Zukunft

    Energy Technology Data Exchange (ETDEWEB)

    Leschke, H. [DaimlerChrysler AG, Sindelfingen (Germany)

    2000-07-01

    The car is 115 years old. Where is it heading on its journey through time which has - up until now - been more evolutionary than revolutionary? The criterion will be to achieve advantages for our customers, and we must channel all our efforts into doing so. 'Emotional' - and therefore 'irrational' feelings - stand in opposition to this rational criterion. A car must please, otherwise it simply will not sell. And let us not forget the 'brand-specific' aspect of car design, which is perceived in a very emotional way. Our profession - and therefore our professionalism too - must see to it that the laws of aesthetics remain on a comprehensible scale, but must develop further from the point of view of different cultures, their development thus far and a general global rapprochement. Design is allowed to provoke, to intrigue our customers; it must arouse emotions. Both emotion and provocation lead to polarity. On balance: there will be something for everyone, a variety of different concepts and designs as a way of portraying one's own individuality in a motoring medley. The basic prerequisite: we should still find driving a car fun - even in the year 2000. (orig.) [German] Das Automobil ist 115 Jahre alt. Wohin geht seine bisherige, eher evolutionaere als revolutionaere Reise? Kundennutzen wird das Kriterium sein, dem sich all unser Tun stellen muss. Diesem rationalen Kriterium steht das 'Emotionale' und damit eher 'Irrationale' gegenueber. Ein Automobil muss gefallen, sonst wird es nicht gekauft. Vergessen wir nicht das sehr emotional wahrgenommene 'Markenspezifische' Automobil-Design. Unsere Profession, und damit auch unsere Professionalitaet, muessen Sorge tragen, dass die Gesetze der Aesthetik in einem nachvollziehbaren Rahmen bleiben, sich aber unter dem Aspekt der unterschiedlichen Kulturen, deren bisheriger Entwicklung und weltweiten Annaeherung weiterentwickeln muessen. Design darf provozieren

  12. Investigation of a matrix converter for contactless power transmission systems; Untersuchung eines Matrixumrichters fuer kontaktlose Energieuebertragungssysteme

    Energy Technology Data Exchange (ETDEWEB)

    Ecklebe, Andreas

    2009-05-22

    Arbeit beschaeftigt sich mit einem drei- zu zweiphasigen Matrixumrichter zur Speisung von kontaktlosen Energieuebertragungssystemen. Aufbauend auf einer Darlegung relevanter Untersuchungen zur Thematik werden zunaechst moegliche Resonanzanordnungen fuer kontaktlose Energieuebertragungssysteme untersucht. Die Betrachtung wichtiger elektrischer Parameter zeigt neben den Unterschieden der einzelnen Anordnungen auch, dass fuer eine auf den speisenden Umrichter fokussierte Untersuchung eine einfache Modellierung der drei untersuchten Resonanzanordnungen mit Hilfe eines Reihenschwingkreises moeglich ist. Als Konsequenz ergibt sich die Schlussfolgerung, dass sich die erzielten Ergebnisse auch fuer den Matrixumrichter mit anderen serienresonanten Lasten anwenden lassen. Der zweite Teil der Arbeit ist der Untersuchung des Matrixumrichters gewidmet. Basierend auf einer theoretischen Beschreibung wird die Kombination von hochfrequenten Steuerverfahren - wie z.B. der Blocktaktung - und niederfrequenten Pulsmustern zur Stellung des Oberschwingungsgehalts der Netzstroeme vorgestellt. Die Aehnlichkeit des Umrichters zu einem konventionellen Wechselrichter in H-Brueckenschaltung ermoeglicht anschliessend eine Betrachtung der Kommutierung und die Ableitung notwendiger Schaltzustaende. Diese sind dadurch gekennzeichnet, dass zu jedem Zeitpunkt genau eine bidirektionale Verbindung vom Eingangssystem zu jeder Ausgangsphase besteht. Die Funktionsweise der Kommutierung wie auch des gesamten Umrichters wird in einem ersten Schritt simulativ belegt. Dabei wird auch das dynamische Schaltverhalten der Leistungshalbleiter beruecksichtigt. Anschliessend werden an einem Laboraufbau aufgenommene Messergebnisse vorgestellt und mit den theoretischen Ergebnissen verglichen. Der Laboraufbau besteht aus dem Leistungsteil des Matrixumrichters mit Eingangsfiltern und modularen Gate-Treibern, einem DSP/FPGA-Steuerungssystem und einem kontaktlosen Energieuebertragungssystem mit sekundaerseitigem Gleichrichter

  13. Multiple myoma: current recommendations for imaging; Multiples Myelom: Aktuelle Empfehlungen fuer die Bildgebung

    Energy Technology Data Exchange (ETDEWEB)

    Hillengass, J. [Medizinische Universitaetsklinik, Abteilung fuer Haematologie, Onkologie und Rheumatologie, Heidelberg (Germany); Deutsches Krebsforschungszentrum, Abteilung Radiologie E010, Heidelberg (Germany); Delorme, S. [Deutsches Krebsforschungszentrum, Abteilung Radiologie E010, Heidelberg (Germany)

    2012-04-15

    zur Erfassung umschriebener Knochendestruktionen, von Osteoporose oder Frakturen. Die Ganzkoerper-low-dose-CT und Ganzkoerper-MRT ermoeglichen eine Darstellung sowohl des mineralisierten Knochens als auch des Knochenmarks mit einer hoeheren Sensitivitaet, hoeherem Patientenkomfort und im Falle der MRT ohne Strahlenbelastung. Nach den Ergebnissen der Literatur sind Schnittbildverfahren dem Roentgenskelettstatus signifikant ueberlegen, wobei die Ganzkoerper-MRT fuer den Nachweis insbesondere eines diffusen Knochenmarkbefalls signifikant besser ist als die Ganzkoerper-CT. Praktisch jeder osteodestruktive Herd ist in der MRT sichtbar. Allerdings ist fuer die Beurteilung der Osteodestruktion selbst wiederum eine CT erforderlich. Die Sensitivitaeten von PET/CT und MRT sind vergleichbar. Wie bereits in einigen Zentren insbesondere in Deutschland umgesetzt, sollten bei Verfuegbarkeit das Ganzkoerper-MRT und das Ganzkoerper-CT den konventionellen Roentgenskelettstatus ersetzen. Bei Erstdiagnose bzw. Verdacht auf eine monoklonale Gammopathie unklarer Signifikanz (MGUS), ''smoldering multiple myeloma'' und symptomatisches multiples Myelom sollten sowohl eine Ganzkoerper-MRT als auch eine Ganzkoerper-CT durchgefuehrt werden. Bei asymptomatischem Myelom oder MGUS waere die Ganzkoerper-MRT bis zur Detektion des ersten umschriebenen Myelomherdes ausreichend. Beim symptomatischen Myelom mit Knochenlaesionen sollten in der Regel die Ganzkoerper-CT und fuer spezielle Fragestellungen die MRT eingesetzt werden. (orig.)

  14. a High Precision dem Extraction Method Based on Insar Data

    Science.gov (United States)

    Wang, Xinshuang; Liu, Lingling; Shi, Xiaoliang; Huang, Xitao; Geng, Wei

    2018-04-01

    In the 13th Five-Year Plan for Geoinformatics Business, it is proposed that the new InSAR technology should be applied to surveying and mapping production, which will become the innovation driving force of geoinformatics industry. This paper will study closely around the new outline of surveying and mapping and then achieve the TerraSAR/TanDEM data of Bin County in Shaanxi Province in X band. The studying steps are as follows; Firstly, the baseline is estimated from the orbital data; Secondly, the interferometric pairs of SAR image are accurately registered; Thirdly, the interferogram is generated; Fourth, the interferometric correlation information is estimated and the flat-earth phase is removed. In order to solve the phase noise and the discontinuity phase existing in the interferometric image of phase, a GAMMA adaptive filtering method is adopted. Aiming at the "hole" problem of missing data in low coherent area, the interpolation method of low coherent area mask is used to assist the phase unwrapping. Then, the accuracy of the interferometric baseline is estimated from the ground control points. Finally, 1 : 50000 DEM is generated, and the existing DEM data is used to verify the accuracy through statistical analysis. The research results show that the improved InSAR data processing method in this paper can obtain the high-precision DEM of the study area, exactly the same with the topography of reference DEM. The R2 can reach to 0.9648, showing a strong positive correlation.

  15. ArcticDEM Year 3; Improving Coverage, Repetition and Resolution

    Science.gov (United States)

    Morin, P. J.; Porter, C. C.; Cloutier, M.; Howat, I.; Noh, M. J.; Willis, M. J.; Candela, S. G.; Bauer, G.; Kramer, W.; Bates, B.; Williamson, C.

    2017-12-01

    Surface topography is among the most fundamental data sets for geosciences, essential for disciplines ranging from glaciology to geodynamics. The ArcticDEM project is using sub-meter, commercial imagery licensed by the National Geospatial-Intelligence Agency, petascale computing, and open source photogrammetry software to produce a time-tagged 2m posting elevation model and a 5m posting mosaic of the entire Arctic region. As ArcticDEM enters its third year, the region has gone from having some of the sparsest and poorest elevation data to some of the most precise and complete data of any region on the globe. To date, we have produced and released over 80,000,000 km2 as 57,000 - 2m posting, time-stamped DEMs. The Arctic, on average, is covered four times though there are hotspots with more than 100 DEMs. In addition, the version 1 release includes a 5m posting mosaic covering the entire 20,000,000 km2 region. All products are publically available through arctidem.org, ESRI web services, and a web viewer. The final year of the project will consist of a complete refiltering of clouds/water and re-mosaicing of all elevation data. Since inception of the project, post-processing techniques have improved significantly, resulting in fewer voids, better registration, sharper coastlines, and fewer inaccuracies due to clouds. All ArcticDEM data will be released in 2018. Data, documentation, web services and web viewer are available at arcticdem.org

  16. Clean air litigation; Klagen fuer Saubere Luft

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2016-11-11

    The pollution of air by nitrogen dioxide (NO{sub 2}) in cities is one of the central challenges of air pollution in Germany, in addition to the pollution of particulate matter (PM10). In cooperation with the British non-governmental organization ClientEarth, the German Environmental Aid (DUH) filed a lawsuit in November 2015 for exceeding air quality limits for NO{sub 2}. The cities of Stuttgart, Frankfurt, Duesseldorf, Essen, Gelsenkirchen, Aachen, Cologne and Bonn are affected. Here, citizens are constantly exposed to high air pollution. Because of the excess of the NO{sub 2} limits at all traffic-related measuring stations in Berlin, the DUH initiated legal steps and filed a lawsuit too in June 2016. With the lawsuits, DUH wants to promote the implementation of measures to reduce NO{sub 2} in Germany. [German] Die Belastung der Luft durch Stickstoffdioxid (NO{sub 2}) in Staedten ist neben der Belastung durch Feinstaub (PM10) eine der zentralen Herausforderungen der Luftreinhaltung in Deutschland. In Zusammenarbeit mit der britischen Nichtregierungsorganisation ClientEarth legte die Deutsche Umwelthilfe (DUH) im November 2015 Klage wegen Ueberschreitung der Luftqualitaetsgrenzwerte fuer NO{sub 2}ein. Betroffen sind die Staedte Stuttgart, Frankfurt, Duesseldorf, Essen, Gelsenkirchen, Aachen, Koeln und Bonn. Hier sind Buergerinnen und Buerger anhaltend zu hoher Luftverschmutzung ausgesetzt. Wegen Ueberschreitung der NO{sub 2}-Grenzwerte an allen verkehrsnahen Messstationen in Berlin hat die DUH im Juni 2016 auch hier rechtliche Schritte eingeleitet und Klage eingereicht. Mit den Klagen will die DUH die Umsetzung von Massnahmen zur NO{sub 2}-Reduktion in Deutschland voranbringen.

  17. Stable amorphous semiconductors for solar cells. Final report; Stabile amorphe Halbleiterfilme fuer Solarzellen. Schlussbericht

    Energy Technology Data Exchange (ETDEWEB)

    Fuhs, W.; Lips, K.; Mell, H.; Stachowitz, R.; Will, S.; Ulber, I.

    1997-12-31

    This study was founded on the preceding projects. The main objective was the preparation and characterization of stable amorphous silicon films (a-Si:H) by plasma enhanced chemical vapor deposition (PECVD). For this purpose the deposition conditions were varied in a wide range. The main effort was on the change of the reactor geometry and the increase of the substrate temperature to values beyond 250 C. Comparative studies of the film stability were carried out using different degradation techniques. The electronic and structural properties of the films were investigated with the aim to find correlations between the stability and other film properties. Information on the defect density was obtained from electron spin resonance (ESR), photothermal deflection spectroscopy (PDS) and photocurrent spectroscopy (CPM). The influence of native and light-induced defects on the recombination kinetics was studied using both films and solar cells. The techniques mainly used for that were steady-state and frequency-resolved photoluminescence spectroscopy (FRS) and electrically detected magnetic resonance (EDMR). The results of these studies were published in international journals and presented at international conferences. (orig.) [Deutsch] Das Vorhaben baute auf den vorangegangenen Projekten auf. Wichtigstes Ziel war die Herstellung und Charakterisierung stabiler amorpher Siliziumfilme (a-Si:H) durch Plasmadeposition. Dazu wurden die Depositionsbedingungen in einem weiten Bereich variiert. Im Vordergrund standen dabei die Aenderung der Reaktorgeometrie und die Erhoehung der Substrattemperatur auf Werte oberhalb von 250 C. Die Stabilitaet der Filme wurde mit verschiedenen Degradationsverfahren vergleichend geprueft. Die Filme wurden hinsichtlich ihrer elektronischen und strukturellen Eigenschaften mit dem Ziel untersucht, einen Zusammenhang zwischen der Stabilitaet und anderen Probeneigenschaften aufzufinden. Als Messverfahren fuer die Defektdichte standen

  18. Multiparametric MRI of the prostate. Important radiological findings for urologists; Multiparametrische MRT der Prostata. Wichtige radiologische Befunde fuer den Urologen

    Energy Technology Data Exchange (ETDEWEB)

    Schlemmer, Heinz-Peter [Deutsches Krebsforschungszentrum (DKFZ), Heidelberg (Germany)

    2017-08-15

    High prevalence of prostate cancer with multifocality and biological heterogeneity. Insufficient conventional urological diagnostics. Discrimination between significant and insignificant cancer needed. Digital rectal examination, prostate-specific antigen (PSA) serum level, systematic transrectal ultrasound (TRUS)-guided prostate biopsy. Multiparametric magnetic resonance imaging (mpMRI) including T2-weighted (T2w), diffusion-weighted and dynamic contrast-enhanced MRI according to the prostate imaging reporting and data system (PIRADS), MR-targeted biopsy, most frequently MR/TRUS image fusion biopsy. Prostate cancer is characterized by low signal intensity on T2w MRI, restricted water diffusion and pronounced and early uptake of contrast enhancement. Sensitivity and specificity according to the current literature are ca. 80% and 90%, respectively. In cases of suspected prostate cancer, most accurate are mpMRI according to PIRADS and in cases of positive findings, MRI-targeted biopsy, most frequently as MRI/TRUS image fusion biopsy. (orig.) [German] Hohe Praevalenz des Prostatakarzinoms mit Multifokalitaet und biologischer Heterogenitaet. Unzureichende konventionelle urologische Diagnostik. Unterscheidung klinisch signifikanter von klinisch nicht signifikanten Karzinomen erforderlich. Digitale rektale Untersuchung, Serum-PSA (prostataspezifisches Antigen), transrektale Sonographie (TRUS), systematische transrektale TRUS-Biopsie. Multiparametrische Magnetresonanztomographie (mpMRT) mit T2w- und diffusionsgewichteten sowie dynamischen kontrastmittelverstaerkten T1w-Sequenzen, dem Standard nach dem Prostate Imaging Reporting and Data System (PIRADS) entsprechend. MR-unterstuetzte Biopsie, meist MR-/TRUS-Fusionsbiopsie. Prostatakarzinome sind typischerweise T2-hypointens mit eingeschraenkter Diffusion und zeigen eine rasche Kontrastmittelanflutung. Nach der Literatur betragen Sensitivitaet und Spezifitaet der mpMRT ca. 80 bzw. 90 %. Fuer die Abklaerung bei Verdacht auf

  19. Hydraulic correction method (HCM) to enhance the efficiency of SRTM DEM in flood modeling

    Science.gov (United States)

    Chen, Huili; Liang, Qiuhua; Liu, Yong; Xie, Shuguang

    2018-04-01

    Digital Elevation Model (DEM) is one of the most important controlling factors determining the simulation accuracy of hydraulic models. However, the currently available global topographic data is confronted with limitations for application in 2-D hydraulic modeling, mainly due to the existence of vegetation bias, random errors and insufficient spatial resolution. A hydraulic correction method (HCM) for the SRTM DEM is proposed in this study to improve modeling accuracy. Firstly, we employ the global vegetation corrected DEM (i.e. Bare-Earth DEM), developed from the SRTM DEM to include both vegetation height and SRTM vegetation signal. Then, a newly released DEM, removing both vegetation bias and random errors (i.e. Multi-Error Removed DEM), is employed to overcome the limitation of height errors. Last, an approach to correct the Multi-Error Removed DEM is presented to account for the insufficiency of spatial resolution, ensuring flow connectivity of the river networks. The approach involves: (a) extracting river networks from the Multi-Error Removed DEM using an automated algorithm in ArcGIS; (b) correcting the location and layout of extracted streams with the aid of Google Earth platform and Remote Sensing imagery; and (c) removing the positive biases of the raised segment in the river networks based on bed slope to generate the hydraulically corrected DEM. The proposed HCM utilizes easily available data and tools to improve the flow connectivity of river networks without manual adjustment. To demonstrate the advantages of HCM, an extreme flood event in Huifa River Basin (China) is simulated on the original DEM, Bare-Earth DEM, Multi-Error removed DEM, and hydraulically corrected DEM using an integrated hydrologic-hydraulic model. A comparative analysis is subsequently performed to assess the simulation accuracy and performance of four different DEMs and favorable results have been obtained on the corrected DEM.

  20. Der Ritter mit dem Hemd : drei Fassungen einer mittelalterlichen Erzählung

    OpenAIRE

    Dunphy, Graeme

    2011-01-01

    Unter den zahlreichen Motiven, die in der mittelalterlichen Literatur mit Frauendienst verbunden sind, gehört das vom Ritter mit dem Hemd zu den besonders interessanten. Es erscheint zunächst in dem ersten von fünf Fabliaux aus einer verlorenen Turiner Handschrift, die dem sonst unbekannten altfranzösischen Dichter Jacques de Baisieux zugeschrieben werden, einer heiteren Kurzgeschichte mit dem Titel "Des trois chevaliers et del chainse". In der vorliegenden Untersuchung gilt es, der Frage der...

  1. Digital Elevation Model (DEM), The county-wide DEM is published with a 20-foot grid size, though we have a more detailed DEM/DTM for some parts of the county, particularly the Green Bay Metro area, Published in 2000, 1:4800 (1in=400ft) scale, Brown County Government.

    Data.gov (United States)

    NSGIC Local Govt | GIS Inventory — Digital Elevation Model (DEM) dataset current as of 2000. The county-wide DEM is published with a 20-foot grid size, though we have a more detailed DEM/DTM for some...

  2. Accuracy of Cartosat-1 DEM and its derived attribute at multiple ...

    Indian Academy of Sciences (India)

    and information content was compared using mean elevation, variance and entropy statistics. Various ... required, but for local studies large scale represen- tation is ... been made to examine the effect of DEM accuracy ... accuracy of DEM is evaluated with respect to grid .... that loss of entropy is a measure of DEM quality or.

  3. ARTS - adaptive runtime system for massively parallel systems. Final report; ARTS - optimale Ausfuehrungsunterstuetzung fuer komplexe Anwendungen auf massiv parallelen Systemen. Teilprojekt: Parallele Stroemungsmechanik. Abschlussbericht

    Energy Technology Data Exchange (ETDEWEB)

    Gentzsch, W.; Ferstl, F.; Paap, H.G.; Riedel, E.

    1998-03-20

    In the ARTS project, system software has been developed to support smog and fluid dynamic applications on massively parallel systems. The aim is to implement and test specific software structures within an adaptive run-time system to separate the parallel core algorithms of the applications from the platform independent runtime aspects. Only slight modifications is existing Fortran and C code are necessary to integrate the application code into the new object oriented parallel integrated ARTS framework. The OO-design offers easy control, re-use and adaptation of the system services, resulting in a dramatic decrease in development time of the application and in ease of maintainability of the application software in the future. (orig.) [Deutsch] Im Projekt ARTS wird Basissoftware zur Unterstuetzung von Anwendungen aus den Bereichen Smoganalyse und Stroemungsmechanik auf massiv parallelen Systemen entwickelt und optimiert. Im Vordergrund steht die Erprobung geeigneter Strukturen, um systemnahe Funktionalitaeten in einer Laufzeitumgebung anzusiedeln und dadurch die parallelen Kernalgorithmen der Anwendungsprogramme von den plattformunabhaengigen Laufzeitaspekten zu trennen. Es handelt sich dabei um herkoemmlich strukturierten Fortran-Code, der unter minimalen Aenderungen auch weiterhin nutzbar sein muss, sowie um objektbasiert entworfenen C-Code, der die volle Funktionalitaet der ARTS-Plattform ausnutzen kann. Ein objektorientiertes Design erlaubt eine einfache Kontrolle, Wiederverwendung und Adaption der vom System vorgegebenen Basisdienste. Daraus resultiert ein deutlich reduzierter Entwicklungs- und Laufzeitaufwand fuer die Anwendung. ARTS schafft eine integrierende Plattform, die moderne Technologien aus dem Bereich objektorientierter Laufzeitsysteme mit praxisrelevanten Anforderungen aus dem Bereich des wissenschaftlichen Hoechstleistungsrechnens kombiniert. (orig.)

  4. Melatonin - a key to the evaluation of the effects of electric; Melatonin - Schluessel fuer die Bewertung der Wirkung elektrischer und magnetischer Felder?

    Energy Technology Data Exchange (ETDEWEB)

    Wunstorf, B.; Lichtenberg, W. [Fachhochschule Hamburg (Germany). Fachbereich Oekotrophologie; Boikat, U. [BAGS, Amt fuer Gesundheit, Hamburg (Germany)

    2000-09-01

    The human pineal gland produces melatonin in a circadian rhythm. The substance has different functions - as a hormone, as an antioxidant and as a neurotransmitter. The secretion of melatonin and its tumor inhibition function can be influenced by electric and magnetic fields. Investigations have been carried out with rodents which have a melatonin rhythm similar to humans; nevertheless, they show a high variability between the species. The present state of knowledge only allows limited use of melatonin as an indicator for the impact of electric and magnetic fields. (orig.) [German] In der Epiphyse des Menschen wird in circadianem Rhythmus Melatonin produziert und ausgeschuettet. Die Substanz hat unterschiedliche Funktionen - als Hormon, Antioxidans und Neurotransmitter. Seine Ausschuettung und seine tumorhemmende Funktion koennen durch elektrische und magnetische Felder beeinflusst werden. Anhand von Nagern, die einen dem Menschen aehnlichen Melatoninrhythmus haben, allerdings eine hohe Speziesvarianz aufweisen, wurden diese Funktionen untersucht. Nach dem jetzigen Kenntnisstand eignet sich Melatonin nur bedingt als Indikator fuer die Wirkungen elektrischer und magnetischer Felder. (orig.)

  5. The core of the energy issue. The responsibility of human beings for the creation; Vom Kern der Energiefrage. Die Verantwortung des Menschen fuer die Schoepfung

    Energy Technology Data Exchange (ETDEWEB)

    Knizia, K.

    2001-07-01

    The responsibility of human beings for the creation in its ethical dimension can only be made clear against a scientific-technical and economic background since human beings have to act in their natural surroundings in view of the world that is becoming more and more complex and at the same time closer through technology, and in view of the fast growing world population and the possible hazards of the viability of the biotope Earth. After World War I, Max Weber differentiated in his famous essay 'Politics as a Vocation' between the ethics of believe and the ethics of responsibility. It can be discussed whether both streams are according to the opinion of Max Weber 'in abysmal contrast'. (orig.) [German] In dem Wort 'Verantwortung' steckt der Wortstamm 'antworten' -, und zwar zunaechst dem eigenen Gewissen zu antworten. Das aber basiert auf sittlichem Bewusstsein, aber auch auf Wissen und Urteilsfaehigkeit und damit auf der Moeglichkeit, zu werten. Werten zu koennen, das erfordert aber, den Wirkungszusammenhang des Geschehens und die Rolle des Menschen in ihm zu verstehen. Die Verantwortung des Menschen fuer die Schoepfung ist nur vor einem naturwissenschaftlich-technischen und einem volkswirtschaftlichen Hintergrund in ihrem ethischen Bezug zu verdeutlichen. (orig.)

  6. 2. Workshop 'Measuring Systems for Steady-State and Transient Multiphase Flows'; 2. Workshop 'Messtechnik fuer stationaere und transiente Mehrphasenstroemungen'

    Energy Technology Data Exchange (ETDEWEB)

    Prasser, H.M. [ed.

    1998-11-01

    The 2nd Workshop on measuring systems for steady-state and transient multiphase flows was held at Rossendorf on September 24/25, 1988. 14 Papers were presented, whose subjects ranged from optical and radiometric methods to impedance sensors, hot film probes and model-assisted methods of measurement. In the field of computer simulation of multiphase flow, a trend towards 3D models was identified which makes higher demands on the spatial and time resolution and on the information volume to be acquired and processed. [German] Vom 24.-25. September 1998 fand in Rossendorf der 2. Workshop ueber Messtechnik fuer stationaere und transiente Mehrphasenstroemungen statt. Es standen 14 Vortraege auf dem Programm, das Spektrum reichte von optischen ueber radiometrische Methoden bis hin zu verschiedenen Impedanzsensoren, Heissfilmsonden und modellgestuetzten Messverfahren. Auf dem Gebiet der Computersimulation von Mehrphasenstroemungen zeichnet sich zunehmend der Uebergang zu dreidimensionalen Modellen ab. Hieraus ergeben sich neue Anforderungen an die Messtechnik, sowohl hinsichtlich der raeumlich-zeitlichen Aufloesung als auch was den Umfang der zu erfassenden Informationen betrifft. (orig./AKF)

  7. Specification of a technically justified limiting value for sulphur concentrations in heating oil in order to enhance the use of high-efficiency boiler technology in oil heating systems; Ermittlung eines technisch begruendeten Grenzwertes fuer Schwefelgehalte im Heizoel zur Foerderung des Einsatzes von Brennwerttechnologie in Oelheizungsanlagen

    Energy Technology Data Exchange (ETDEWEB)

    Bellingen, E.-M.; Kuechen, C. [Institut fuer Wirtschaftliche Oelheizung e.V., Hamburg (Germany); Haase, F.; Wilckens, H. [Deutsche Shell AG, Hamburg (Germany); Sinnen, H.D. [VEBA AG, Duesseldorf (Germany)

    2002-04-01

    Different oil condensing boilers, which were available on the German market, have been investigated in order to determine the relevant limit for sulphur content in domestic heating oil. Up to now, the condensate from oil condensing boilers has to be neutralized in many cases due to local legislation. The composition of the condensates from oil boilers came out to be similar to the condensate from gas condensing boilers, as long as the sulphur content of heating oil is below 100 mg/kg. As the neutralization of condensate from gas condensing boilers is usually not required up to 200 kW-boilers, there should be no technical reason for neutralization, as long as the sulphur content is below 100 mg/kg. However, boiler manufactures are convinced, that only if the sulphur content is as low as 50 mg/kg, it will be possible to develop reliable oil condensing boilers for a reasonable price. Calculations of the total energy consumption came to the result, that primary energy can be saved. The increase of efficiency on the boiler side has more influence than the energy needed for desulphurization. (orig.) [German] Zur Bestimmung eines technisch begruendeten Schwefelgrenzwertes fuer ein neues 'schwefelarmes' Heizoel EL wurden Untersuchungen mit Heizoelen unterschiedlichen Schwefelgehaltes an verschiedenen auf dem Markt verfuegbaren Oelbrennwertgeraeten durchgefuehrt. Zur Zeit wird durch das ATV Arbeitsblatt A-251 eine Neutralisation von Kondensaten aus Oelbrennwertanlagen gefordert. Die Untersuchungen zeigen, dass bei Schwefelgehalten unter 100 mg/kg die Kondensate aehnliche Zusammensetzungen aufweisen wie Kondensate aus Gasbrennwertgeraeten. Die Voraussetzung fuer eine Befreiung von der Neutralisationsverpflichtung bei der Verwendung dieser Brennstoffe ist damit aus technischer Sicht gegeben. Fuer die Entwicklung von neuen, kompakten und preiswerten Oelbrennwertgeraeten wird von der Heizgeraeteindustrie ein Schwefelgehalt von max. 50 mg/kg fuer notwendig gehalten

  8. Arbeitsgemeinschaft fuer die Reinhaltung der Elbe - endocrineously active substances in the Elbe, its tributaries and the North Sea; Arbeitsgemeinschaft fuer die Reinhaltung der Elbe - Endokrin wirksame Stoffe in der Elbe, in Nebenfluessen und in der Nordsee

    Energy Technology Data Exchange (ETDEWEB)

    Heemken, O.P. [GALAB, Geesthacht (Germany); Theobald, N. [Bundesamt fuer Seeschiffahrt und Hydrographie, Hamburg (Germany); Hebbel, H. [Universitaet der Bundeswehr Hamburg (Germany); Stachel, B. [Wasserguetestelle Elbe, Hamburg (Germany)

    2000-07-01

    Endocrineously active substances are discharged into surface bodies of water with communal and industrial effluents. Especially estrogenic substances like Bisphenol A, alkyl phenols and alkyl phenol ethoxylates in the Elbe and its tributaries have been neglected so far. In the context of an interdisciplinary project, chemists, biologists and mathematicians investigated the concentrations and fate of these xenoestrogens, relative potential effects of unknown water constituents and quantitative statistical mechanisms based on the available analytical findings. The contribution intends to contribute information on the pollutant situation of selected endocrineously active substances in the Elbe and its tributaries. [German] Ein relevanter Eintragspfad fuer endokrin wirksame Stoffe in die Oberflaechengewaesser sind die Abwaesser kommunaler und industrieller Klaeranlagen. Insbesondere das Vorkommen und der Verbleib von oestrogen wirkenden Stoffen wie Bisphenol A, den Alkylphenolen und Alkylphenolethoxylaten in der Elbe und in Elbenebenfluessen wurde bisher zu wenig Aufmerksamkeit geschenkt. In einem interdisziplinaeren Projekt, an dem sich Chemiker, Biologen und Mathematiker beteiligten, wird versucht, eine erste Antwort zu geben ueber das Vorkommen und den Verbleib dieser Xenooestrogene, ueber relative Wirkpotenzen von unbekannten Wasserinhaltsstoffen durch die Anwendung von In-vitro-Tests und ueber quantitative statistische Zusammenhaenge, die auf vorhandenen Analysenergebnissen basieren. Dieser Bericht soll einen Beitrag leisten zur Immissionssituation von ausgewaehlten endokrin wirksamen Stoffen in der Elbe und in Elbenebenfluessen. (orig.)

  9. The industrial application of fracture mechanics concepts discussed at the background of international standards and guidelines; Die industrielle Anwendung bruchmechanischer Konzepte vor dem Hintergrund internationaler Bewertungsvorschriften und Regelwerke

    Energy Technology Data Exchange (ETDEWEB)

    Zerbst, U. [GKSS-Forschungszentrum Geesthacht GmbH (Germany). Inst. fuer Werkstofforschung; Langenberg, P. [Ingenieurbuero fuer Werkstofftechnik, Aachen (Germany)

    2000-07-01

    Many features from the background for an intensified application of fracture mechanics concepts in many industries world-wide. These include requirements for a permanent increase of the level of performance of technical components and structures by the introduction of new materials, joining technologies and design principles, the problem of ageing components and life extension, an increased emphasis on non-destructive in-service inspection combined with improved NDT techniques, and also a number of failure events caused by fatigue and fracture The aim of the present paper is to give a brief state-of-the-art review on how fracture mechanics is applied in different industrial branches today. This is based on standards and guidelines in the aerospace industry, in the nuclear and fossil power generation, in the chemical and petrochemical and the pipeline industry, in civil engineering, offshore technique and other fields. Based on the review an outlook is given on a future development that would be reasonable and desirable from the point of view of a basically unified philosophy of fracture mechanics application. (orig.) [German] Die Erhoehung der Leistungsparameter vieler Maschinen und Anlagen verbunden mit dem Einsatz neuer Werkstoffe, Fuegeverfahren und Konstruktionsprinzipien, der Betrieb vieler Strukturen ueber ihre projektierte Lebensdauer hinaus, technische Verbesserungen und ein durchgaengigerer Einsatz zerstoerungsfreier Defektpruefverfahren, aber auch immer wieder einmal auftretende Schadensfaelle bilden den Hintergrund fuer die zunehmende Nutzung bruchmechanischer Bewertungsvorschriften in der industriellen Praxis. Die vorliegende Studie zieht eine momentane Bilanz dieser Entwicklung am Beispiel von Fachbereichsstandards der Luft- und Raumfahrtindustrie, der konventionellen und Kernkrafttechnik, der Chemie und Petrochemie, der Pipelineindustrie, des Stahlbaus, der Offshore-Technik und anderer Bereiche. Ausgehend von dieser Bestandsaufnahme wird ein Ausblick

  10. A comparative appraisal of hydrological behavior of SRTM DEM at catchment level

    Science.gov (United States)

    Sharma, Arabinda; Tiwari, K. N.

    2014-11-01

    The Shuttle Radar Topography Mission (SRTM) data has emerged as a global elevation data in the past one decade because of its free availability, homogeneity and consistent accuracy compared to other global elevation dataset. The present study explores the consistency in hydrological behavior of the SRTM digital elevation model (DEM) with reference to easily available regional 20 m contour interpolated DEM (TOPO DEM). Analysis ranging from simple vertical accuracy assessment to hydrological simulation of the studied Maithon catchment, using empirical USLE model and semidistributed, physical SWAT model, were carried out. Moreover, terrain analysis involving hydrological indices was performed for comparative assessment of the SRTM DEM with respect to TOPO DEM. Results reveal that the vertical accuracy of SRTM DEM (±27.58 m) in the region is less than the specified standard (±16 m). Statistical analysis of hydrological indices such as topographic wetness index (TWI), stream power index (SPI), slope length factor (SLF) and geometry number (GN) shows a significant differences in hydrological properties of the two studied DEMs. Estimation of soil erosion potentials of the catchment and conservation priorities of microwatersheds of the catchment using SRTM DEM and TOPO DEM produce considerably different results. Prediction of soil erosion potential using SRTM DEM is far higher than that obtained using TOPO DEM. Similarly, conservation priorities determined using the two DEMs are found to be agreed for only 34% of microwatersheds of the catchment. ArcSWAT simulation reveals that runoff predictions are less sensitive to selection of the two DEMs as compared to sediment yield prediction. The results obtained in the present study are vital to hydrological analysis as it helps understanding the hydrological behavior of the DEM without being influenced by the model structural as well as parameter uncertainty. It also reemphasized that SRTM DEM can be a valuable dataset for

  11. Arbeitsgemeinschaft fuer die Reinhaltung der Elbe - selected organic trace pollutants in the Elbe and its tributaries 1994-1999; Arbeitsgemeinschaft fuer die Reinhaltung der Elbe - Ausgewaehlte organische Spurenverunreinigungen in der Elbe und Elbenebenfluessen im Zeitraum 1994 - 1999

    Energy Technology Data Exchange (ETDEWEB)

    Fooken, C.; Stachel, B.; Reincke, H. [Wasserguetestelle Elbe, Hamburg (Germany)

    2000-10-01

    The present report contains results on the occurrence of polar and nonpolar substances in the Elbe and selected tributaries which were analysed in the period from 1994 to 1999. It shows that industrial and municipal purification plants still have an insufficient cleaning capacity for certain substances. The process by which ubiquitous pollutants can enter the Elbe via a small, widely ramified fluvial system is exemplified for the family of chloroalkyl phosphates. These mainly occur in flame retardants and plasticisers in polyurethanes. The paper also presents results from a selection of 28 substances listed in Directive 76/464/ECC. They provide a decision aid for the planning of future measuring concepts based on the EU Water Framework Directive. In the ARGE ELBE programme organic pollutants are recorded and published on a routine basis. These are mostly nonpolar substances such as the well-known polychlorinated biphenyls or slow-evaporating insecticidal chlorinated hydrocarbons such as DTT. Recent analysis results show that this group of substances is relevant now as before and that it will remain so for the years to come. Special studies involving aqueous phase measurements were performed on a different group of substances, namely polar substances, which are generally readily soluble. The substances on which this report is chiefly focused originate from different sources: industrial and municipal effluents, diffuse inputs from agriculture and atmospheric depositions. In many cases they are difficultly degradable and could attain significance where river water in the form of river bank filtrate is used for drinking water production. However, due to complex and effective purification technologies they rarely enter drinking water. [German] Der vorliegende Bericht enthaelt Ergebnisse zum Vorkommen polarer und unpolarer Stoffe in der Elbe und in ausgewaehlten Nebenfluessen, die in dem Zeitraum von 1994 bis 1999 analysiert worden sind. Er zeigt, dass fuer einzelne

  12. Photovoltaic systems. A guide for electricians, roofers, projecting engineers and architects; Photovoltaische Anlagen. Leitfaden fuer Elektriker, Dachdecker, Fachplaner, Architekten und Bauherren

    Energy Technology Data Exchange (ETDEWEB)

    Haselhuhn, R.; Berger, F.; Hasenoehrl, G.; Morsch, R.; Quaschning, V.; Rauscher, S.; Seltmann, T.; Hartmann, U.

    2001-07-01

    can-polluting and sustainable power supply will rely heavily on photovoltaic systems. Experience has shown that the development of PV systems cannot be assured without careful, high-quality planning dimensioning, installation, commissioning and maintenance. This guide contains comprehensive information on all aspects of PV systems. It addresses architects, projecting engineers, builder-owners, electricians and roofers, as well as decision-makers on state and community level with the intention of informing them on the latest state of the art. Contents: 1. Functional principles, design, characteristics and properties of components, modules and current inverters; 2. in situ analysis and site analysis; 3. shading analysis; 4. Optimal planning, dimensioning and design; 5. simulation programmes; 6. installation, commissioning, failure detection and maintenance; 7. assembly systems and integration options; 8. funding programmes. To facilitate updating, the book is in the form of a loose-leaf collection. [German] Fuer eine klimavertraegliche und nachhaltige zukuenftige Energieversorgung Deutschlands ist der massive Ausbau der Photovoltaik unabdingbar. Die Rahmenbedingungen fuer einen solchen Ausbau sind geschaffen, der Markt befindet sich zur Zeit im Umbruch. In Deutschland werden von einem solchen Ausbau in erster Linie netzgekoppelte PV-Anlagen betroffen sein. Die Erfahrungen mit der Performance solcher Anlagen (1.000-Daecher-Programm, Programm Sonne in der Schule, Schweizer Foerderprogramm etc.) haben allerdings gezeigt, dass ohne eine sorgfaeltige und auf hohem Niveau stehende Planung, Dimensionierung, Installation, Inbetriebnahme und Wartung der optimale Ertrag und damit der Beitrag zum Klimaschutz nicht gewaehrleistet werden kann. Aus diesen Gruenden ist es notwendig und sinnvill, Architekten, Planern, Bauherren, Installationsbetrieben (sowohl Elektrikern als auch Dachdeckern) und last but not least den Entscheidungstraegern in Laendern und Kommunen ein

  13. The WTO ministerial conference in Seattle - results and future prospects for environmental protection; Die WTO-Ministerkonferenz in Seattle - Ergebnisse und Perspektiven fuer den Umweltschutz

    Energy Technology Data Exchange (ETDEWEB)

    Fuchs, P; Pfahl, S; Reichert, T [AG Handel des Forums und Entwicklung im Deutschen Naturschutzring (DNR), Bonn (Germany)

    2000-10-01

    The third Ministerial Conference of the World Trade Organisation (WTO) took place in Seattle (USA) from November 30{sup th} to December 3{sup rd} 1999. WTO members failed to agree on an agenda for a new round of trade-negotiation that should also include environmental and sustainability aspects. The Seattle Ministerial Conference provoked massive protests from non-governmental organisations (NGO) dealing with environment and development issues. They see the GATT/WTO regime - and globalisation in general - as a threat to their concerns. Against this background, the study analyses possibilities for the integration of environmental and sustainability aspects into upcoming WTO-negotiations. The focus is on views and proposals from international NGOs and critical scientists. First, the study deals with current and potential future areas of conflicts between environmental and trade policies. Furthermore, the environmental aspects of trade liberalisation in specific sectors and regulatory fields are discussed, which are currently negotiated in the WTO (agriculture, services) or which should be included in further negotiations (forest products, investment, etc.). The study moves on to an account of the WTO-Conference in Seattle from an environmental perspective and demonstrate a multitude of factors contributed to the failure of the conference. (orig.) [German] Vom 30.11. bis 03.12.1999 tagte in Seattle (USA) die 3. Ministerkonferenz der Welthandelsorganisation (WTO). Sie scheiterte bei dem Versuch, eine Einigung ueber die Agenda fuer eine neue WTO-Verhandlungsrunde herbeizufuehren, die auch Umwelt- und Nachhaltigkeitsaspekte einschliessen sollte. Die Konferenz stand unter dem starken Eindruck massiver Proteste von zahlreichen Umwelt- und Entwicklungsorganisationen, die im GATT/WTO-Regime - sowie grundsaetzlich in der Globalisierung - eine Bedrohung fuer Umwelt- und Nachhaltigkeitsanliegen sehen. Vor diesem Hintergrund untersucht die Studie die Moeglichkeiten einer

  14. Cubic boron nitride coatings for innovative applications; Schichten aus kubischem Bornitrid (cBN) fuer innovative Anwendungen

    Energy Technology Data Exchange (ETDEWEB)

    Keunecke, M.; Bewilogua, K. [Fraunhofer Inst. fuer Schicht- und Oberflaechentechnik (Germany)

    2001-08-01

    Coatings of cubic boron nitride (cBN), the second hardest of all known materials, were prepared using a sputter process. A new coating design, based on a special B-C-N layer system, allows to deposit thick (> 2 {mu}m) cBN films, however so far only on silicon substrates. The properties of the coatings are quite similar to those of bulk cBN. Promising experiments were performed with respect to a transfer of this application relevant layer system to cemented carbide and steel substrates. First measurements of the mechanical and tribological properties confirmed the outstanding properties and the high potential of such cBN based coating systems. (orig.) [German] Schichten aus kubischem Bornitrid (cBN), dem nach Diamant zweithaertesten aller bekannten Materialien, wurden mit einem Sputter-Prozess hergestellt. Ein neuartiger Schichtaufbau, der auf einem speziellen B-C-N-Schichtsystem basiert, ermoeglicht die Abscheidung von cBN-Schichten mit ueber 2 {mu}m Dicke, allerdings bisher nur auf Siliciumsubstraten. Die Eigenschaften der Schichten sind denen von massivem cBN sehr aehnlich. Es wurden vielversprechende Experimente zur Uebertragung dieses fuer Werkzeugbeschichtungen und vielfaeltige andere Anwendungen interessanten Schichtsystems auf Werkzeugsubstrate durchgefuehrt. Erste Untersuchungen der mechanisch-tribologischen Eigenschaften der auf Hartmetall- und Stahlsubstraten abgeschiedenen Schichten belegen das aussergewoehnlich hohe Potential der cBN-basierten Schichtsysteme. (orig.)

  15. DEM analysis of FOXSI-2 microflare using AIA observations

    Science.gov (United States)

    Athiray Panchapakesan, Subramania; Glesener, Lindsay; Vievering, Juliana; Camilo Buitrago-Casas, Juan; Christe, Steven; Inglis, Andrew; Krucker, Sam; Musset, Sophie

    2017-08-01

    The second flight of Focusing Optics X-ray Solar Imager (FOXSI) sounding rocket experiment was successfully completed on 11 December 2014. FOXSI makes direct imaging and spectral observation of the Sun in hard X-rays using grazing incidence optics modules which focus X-rays onto seven focal plane detectors kept at a 2m distance, in the energy range 4 to 20 keV, to study particle acceleration and coronal heating. Significant HXR emissions were observed by FOXSI during microflare events with A0.5 and A2.5 class, as classified by GOES, that occurred during FOXSI-2 flight.Spectral analysis of FOXSI data for these events indicate presence of plasma at higher temperatures (>10MK). We attempt to study the plasma content in the corona at different temperatures, characterized by the differential emission measure (DEM), over the FOXSI-2 observed flare regions using the Atmospheric Imaging Assembly (SDO/AIA) data. We utilize AIA observations in different EUV filters that are sensitive to ionized iron lines, to determine the DEM by using a regularized inversion method. This poster will show the properties of hot plasma as derived from FOXSI-2 HXR spectra with supporting DEM analysis using AIA observations.

  16. THE GLOBAL TANDEM-X DEM: PRODUCTION STATUS AND FIRST VALIDATION RESULTS

    Directory of Open Access Journals (Sweden)

    M. Huber

    2012-07-01

    Full Text Available The TanDEM-X mission will derive a global digital elevation model (DEM with satellite SAR interferometry. Two radar satellites (TerraSAR-X and TanDEM-X will map the Earth in a resolution and accuracy with an absolute height error of 10m and a relative height error of 2m for 90% of the data. In order to fulfill the height requirements in general two global coverages are acquired and processed. Besides the final TanDEM-X DEM, an intermediate DEM with reduced accuracy is produced after the first coverage is completed. The last step in the whole workflow for generating the TanDEM-X DEM is the calibration of remaining systematic height errors and the merge of single acquisitions to 1°x1° DEM tiles. In this paper the current status of generating the intermediate DEM and first validation results based on GPS tracks, laser scanning DEMs, SRTM data and ICESat points are shown for different test sites.

  17. La revista Demófilo y la antropología cultural en Andalucía

    Directory of Open Access Journals (Sweden)

    Rodríguez Becerra, Salvador

    2002-06-01

    Full Text Available Published since 1987 by the Machado Foundation, of Seville, Demófilo represents the resumption of scientific folklore studies in the late 19th century championed by Antonio Machado y Álvarez and published in the journal El Folk-lore Andaluz. The basic objectives of Demófilo are «to rescue, analyze and divulge Andalousia's traditional culture.» The journal is oriented toward high schools, colleges and universities in Andalousia as well as any institution interested in the traditional culture of the area, such as museums and organizations supporting Andalousia's cultural heritage. The authors also include in this article a summary of the journal's monographic issues published to date.

    Publicación de la Fundación Machado, de Sevilla, y nacida en 1987, Demófilo enlaza con su predecesora en el siglo XIX, El Folk-lore Andaluz, del movimiento sevillano de estudio científico del folklore que animara sobre todo Antonio Machado y Álvarez. Demófilo tiene como objetivos básicos «rescatar, analizar y difundir la cultura tradicional andaluza» y va dirigida especialmente a centros de enseñanza media y universidades de Andalucía, así como a instituciones interesadas en la cultura tradicional de la región, como museos y asociaciones de defensa del patrimonio cultural. Los autores incluyen también en este artículo un resumen de los números monográficos de la revista publicados hasta la fecha.

  18. Modelling above Ground Biomass in Tanzanian Miombo Woodlands Using TanDEM-X WorldDEM and Field Data

    Directory of Open Access Journals (Sweden)

    Stefano Puliti

    2017-09-01

    Full Text Available The use of Interferometric Synthetic Aperture Radar (InSAR data has great potential for monitoring large scale forest above ground biomass (AGB in the tropics due to the increased ability to retrieve 3D information even under cloud cover. To date; results in tropical forests have been inconsistent and further knowledge on the accuracy of models linking AGB and InSAR height data is crucial for the development of large scale forest monitoring programs. This study provides an example of the use of TanDEM-X WorldDEM data to model AGB in Tanzanian woodlands. The primary objective was to assess the accuracy of a model linking AGB with InSAR height from WorldDEM after the subtraction of ground heights. The secondary objective was to assess the possibility of obtaining InSAR height for field plots when the terrain heights were derived from global navigation satellite systems (GNSS; i.e., as an alternative to using airborne laser scanning (ALS. The results revealed that the AGB model using InSAR height had a predictive accuracy of R M S E = 24.1 t·ha−1; or 38.8% of the mean AGB when terrain heights were derived from ALS. The results were similar when using terrain heights from GNSS. The accuracy of the predicted AGB was improved when compared to a previous study using TanDEM-X for a sub-area of the area of interest and was of similar magnitude to what was achieved in the same sub-area using ALS data. Overall; this study sheds new light on the opportunities that arise from the use of InSAR data for large scale AGB modelling in tropical woodlands.

  19. Educational and Nonprofit Institutions Receiving Prime Contract Awards for RDT&E (Research, Development, Test and Evaluation), Fiscal Year 1981.

    Science.gov (United States)

    1981-01-01

    SCIENCE & TECH 162 - UNITED KINGDOM MINISTRY OF DEFENCE 2,670 - UN KINGDOM 162 UN KINGDOM 2,670 INSTITUT FUER ATMOSPHAERISCHE 25 - UNIVERSITE RENE ... DESCARTES 10 - GERMANY 25 FRANCE 10 INVERESK RESEARCH INTERNATIONAL 106 - 8,602 UN KINGDOM 106 ISRAEL INSTITUTE OF TECHNOLOGY 55 - ISRAEL 55 KEELE UNIVERSITY

  20. Der Meteorologe : (aus dem Band "V". Tallinn 1998) / Elo Viiding ; aus dem Estnischen von Gisbert Jänicke

    Index Scriptorium Estoniae

    Viiding, Elo, 1974-

    2002-01-01

    Sisu : Die Möglichkeit des Meteorologen = Meteoroloogi võimalikkusest ; "Der Meteorologe kam 1990 in die Stadt..." = "Meteoroloog saabus linna aastal 1990..." ; "Was wäre dir "Arbeit" des Meteorologen..." = "Mis oleks meteoroloogi töö..." ; "Und ein Unglück für den Meteorologen ist es auch..." = "Ja Meteoroloogi õnnetus on veel see..." ; Angst vor dem Altwerden des Meteorologen = Hirm Meteoroloogi vanakssaamise ees ; Fest. Geschenk = Pidu. Kink ; "Wenn der Meteorologe eine Grösse sieht, ist er darüber..." = "Kui meteoroloog näeb suurust, on ta selle kohal..." ; Der Meteorologe wird im Saal erwartet = Meteoroloogi oodatakse saali ; "Das Abkommen mit der Meteorologenerwartung kündigen..." = "Katkestada leping meteoroloogiootusega..." ; "Die "Wege des Herrn" sind der Meteorologe..." = "Looja tee" on Meteoroloog..." ; Von dem Fremden, der im Saal den Meteorologen traf = Võõra lugu, kes Meteoroloogi saalis kohtas ; "Den Fremden hervorzuhusten, der von dem..." = "Köhida enesest välja võõras, kes tahtis teha..." ; Der Fremde beruhigt sich nicht = Võõras ei jää rahule

  1. EMUs for the Oeresund link; Elektrische Triebzuege fuer die Oeresundverbindung

    Energy Technology Data Exchange (ETDEWEB)

    Bengtsson, J.E. [Bombardier Transportation GmbH, Vaesteraas (Sweden)

    2001-07-01

    Danish and Swedish Railways jointly purchased new EMUs type Contessa for the Oresund Link, starting operation in summer 2000. By high acceleration the three car electric multiple units reach a top speed of 180 km/h. Several EMUs can be coupled quickly to the Flexfrontsystem technology. Further special features are equipments for two different line voltages as well as for two signalling and automatic train control systems and a low floor part. (orig.) [German] Die daenische und die schwedische Eisenbahn haben gemeinsam fuer die Oresund-Verbindung neue dreiteilige Triebzuege Contessa beschafft und im Sommer 2000 in Betrieb genommen. Die elektrischen Triebzuege erreichen mit hoher Beschleunigung 180 km/h Hoechstgeschwindigkeit und koennen dank des Flexfrontsystems schnell zu mehreren gekuppelt werden. Weitere Merkmale sind die Ausruestungen fuer zwei Fahrleitungsspannungen, zwei Signal- und Zugbeeinflussungssysteme sowie ein Niederflurbereich. (orig.)

  2. [Julia Rosche. Zwischen den Fronten. Die Rolle Estlands zwischen dem Hitler-Stalin-Pakt und dem Ende des Zweiten Weltkriegs im internationalen Kontext] / Olaf Mertelsmann

    Index Scriptorium Estoniae

    Mertelsmann, Olaf, 1969-

    2014-01-01

    Arvustus: Rosche, Julia. Zwischen den Fronten. Die Rolle Estlands zwischen dem Hitler-Stalin-Pakt und dem Ende des Zweiten Weltkriegs im internationalen Kontext. Diplomica Verlag. Hamburg 2012. Unter demselben Titel mit identischem Text auch: Grin Verlag. München 2013

  3. Research on a dem Coregistration Method Based on the SAR Imaging Geometry

    Science.gov (United States)

    Niu, Y.; Zhao, C.; Zhang, J.; Wang, L.; Li, B.; Fan, L.

    2018-04-01

    Due to the systematic error, especially the horizontal deviation that exists in the multi-source, multi-temporal DEMs (Digital Elevation Models), a method for high precision coregistration is needed. This paper presents a new fast DEM coregistration method based on a given SAR (Synthetic Aperture Radar) imaging geometry to overcome the divergence and time-consuming problem of the conventional DEM coregistration method. First, intensity images are simulated for two DEMs under the given SAR imaging geometry. 2D (Two-dimensional) offsets are estimated in the frequency domain using the intensity cross-correlation operation in the FFT (Fast Fourier Transform) tool, which can greatly accelerate the calculation process. Next, the transformation function between two DEMs is achieved via the robust least-square fitting of 2D polynomial operation. Accordingly, two DEMs can be precisely coregistered. Last, two DEMs, i.e., one high-resolution LiDAR (Light Detection and Ranging) DEM and one low-resolution SRTM (Shutter Radar Topography Mission) DEM, covering the Yangjiao landslide region of Chongqing are taken as an example to test the new method. The results indicate that, in most cases, this new method can achieve not only a result as much as 80 times faster than the minimum elevation difference (Least Z-difference, LZD) DEM registration method, but also more accurate and more reliable results.

  4. Research on the method of extracting DEM based on GBInSAR

    Science.gov (United States)

    Yue, Jianping; Yue, Shun; Qiu, Zhiwei; Wang, Xueqin; Guo, Leping

    2016-05-01

    Precise topographical information has a very important role in geology, hydrology, natural resources survey and deformation monitoring. The extracting DEM technology based on synthetic aperture radar interferometry (InSAR) obtains the three-dimensional elevation of the target area through the phase information of the radar image data. The technology has large-scale, high-precision, all-weather features. By changing track in the location of the ground radar system up and down, it can form spatial baseline. Then we can achieve the DEM of the target area by acquiring image data from different angles. Three-dimensional laser scanning technology can quickly, efficiently and accurately obtain DEM of target area, which can verify the accuracy of DEM extracted by GBInSAR. But research on GBInSAR in extracting DEM of the target area is a little. For lack of theory and lower accuracy problems in extracting DEM based on GBInSAR now, this article conducted research and analysis on its principle deeply. The article extracted the DEM of the target area, combined with GBInSAR data. Then it compared the DEM obtained by GBInSAR with the DEM obtained by three-dimensional laser scan data and made statistical analysis and normal distribution test. The results showed the DEM obtained by GBInSAR was broadly consistent with the DEM obtained by three-dimensional laser scanning. And its accuracy is high. The difference of both DEM approximately obeys normal distribution. It indicated that extracting the DEM of target area based on GBInSAR is feasible and provided the foundation for the promotion and application of GBInSAR.

  5. Bayerisches Landesamt fuer Umweltschutz. 1997 annual report and abstracts of publications; Bayerisches Landesamt fuer Umweltschutz. Taetigkeitsbericht 1997 und Kurzbeitraege

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-08-01

    The annual report informs about the activities of the Bavarian Land Office for Environmental Protection in the following fields: clean air policy, waste management, management of soil pollution and remedial action, nuclear energy and radiation protection, nature conservation and landscape conservation, LfU laboratory, environmental hygiene, and data processing (SR) [Deutsch] Der vorliegende Bericht beschreibt die Taetigkeiten des Bayerischen Landesamtes fuer Umweltschutz auf folgenden Gebieten: Immissionsschutz, Abfallwirtschaft, Altlasten und Bodenschutz, Kernenergie und Strahlenschutz, Naturschutz und Landschaftspflege, Zentrallabors und Umwelthygiene, sowie Datenverarbeitung. (SR)

  6. A coupled DEM-CFD method for impulse wave modelling

    Science.gov (United States)

    Zhao, Tao; Utili, Stefano; Crosta, GiovanBattista

    2015-04-01

    Rockslides can be characterized by a rapid evolution, up to a possible transition into a rock avalanche, which can be associated with an almost instantaneous collapse and spreading. Different examples are available in the literature, but the Vajont rockslide is quite unique for its morphological and geological characteristics, as well as for the type of evolution and the availability of long term monitoring data. This study advocates the use of a DEM-CFD framework for the modelling of the generation of hydrodynamic waves due to the impact of a rapid moving rockslide or rock-debris avalanche. 3D DEM analyses in plane strain by a coupled DEM-CFD code were performed to simulate the rockslide from its onset to the impact with still water and the subsequent wave generation (Zhao et al., 2014). The physical response predicted is in broad agreement with the available observations. The numerical results are compared to those published in the literature and especially to Crosta et al. (2014). According to our results, the maximum computed run up amounts to ca. 120 m and 170 m for the eastern and western lobe cross sections, respectively. These values are reasonably similar to those recorded during the event (i.e. ca. 130 m and 190 m respectively). In these simulations, the slope mass is considered permeable, such that the toe region of the slope can move submerged in the reservoir and the impulse water wave can also flow back into the slope mass. However, the upscaling of the grains size in the DEM model leads to an unrealistically high hydraulic conductivity of the model, such that only a small amount of water is splashed onto the northern bank of the Vajont valley. The use of high fluid viscosity and coarse grain model has shown the possibility to model more realistically both the slope and wave motions. However, more detailed slope and fluid properties, and the need for computational efficiency should be considered in future research work. This aspect has also been

  7. 3D DEM analyses of the 1963 Vajont rock slide

    Science.gov (United States)

    Boon, Chia Weng; Houlsby, Guy; Utili, Stefano

    2013-04-01

    The 1963 Vajont rock slide has been modelled using the distinct element method (DEM). The open-source DEM code, YADE (Kozicki & Donzé, 2008), was used together with the contact detection algorithm proposed by Boon et al. (2012). The critical sliding friction angle at the slide surface was sought using a strength reduction approach. A shear-softening contact model was used to model the shear resistance of the clayey layer at the slide surface. The results suggest that the critical sliding friction angle can be conservative if stability analyses are calculated based on the peak friction angles. The water table was assumed to be horizontal and the pore pressure at the clay layer was assumed to be hydrostatic. The influence of reservoir filling was marginal, increasing the sliding friction angle by only 1.6˚. The results of the DEM calculations were found to be sensitive to the orientations of the bedding planes and cross-joints. Finally, the failure mechanism was investigated and arching was found to be present at the bend of the chair-shaped slope. References Boon C.W., Houlsby G.T., Utili S. (2012). A new algorithm for contact detection between convex polygonal and polyhedral particles in the discrete element method. Computers and Geotechnics, vol 44, 73-82, doi.org/10.1016/j.compgeo.2012.03.012. Kozicki, J., & Donzé, F. V. (2008). A new open-source software developed for numerical simulations using discrete modeling methods. Computer Methods in Applied Mechanics and Engineering, 197(49-50), 4429-4443.

  8. Optimization of Particle Search Algorithm for CFD-DEM Simulations

    Directory of Open Access Journals (Sweden)

    G. Baryshev

    2013-09-01

    Full Text Available Discrete element method has numerous applications in particle physics. However, simulating particles as discrete entities can become costly for large systems. In time-driven DEM simulation most computation time is taken by contact search stage. We propose an efficient collision detection method which is based on sorting particles by their coordinates. Using multiple sorting criteria allows minimizing number of potential neighbours and defines fitness of this approach for simulation of massive systems in 3D. This method is compared to a common approach that consists of placing particles onto a grid of cells. Advantage of the new approach is independence of simulation parameters upon particle radius and domain size.

  9. Der antiskeptische Boden unter dem Gehirn im Tank

    OpenAIRE

    Müller, Olaf L.

    2001-01-01

    Crispin Wright hat die bislang beste Rekonstruktion von Putnams Beweis gegen die skeptische Hypothese vom Gehirn im Tank vorgelegt. Aber selbst in Wrights Fassung hat der Beweis einen Mangel: Er wird mithilfe eines Prädikates wie z.B. "Tiger" geführt und funktioniert nur, wenn man sich darauf verlassen kann, dass es Tiger wirklich gibt. Aber die Skeptikerin bestreitet, über die Existenz von Tigern bescheid zu wissen. Das Problem lässt sich dadurch beheben, dass man den Beweis – statt mit dem ...

  10. Development of a photovoltaic-experimental system for the instruction at schools as a portable complete system. Final report; Entwicklung eines Photovoltaik-Experimentiersystems fuer den Unterricht in Schulen als portables Komplettsystem. Abschlussbericht

    Energy Technology Data Exchange (ETDEWEB)

    Kunsch, H.

    1999-07-14

    The available products on the German market were found out and given an opinion on. The offered systems do not meet all requirements on a competent and adequate education in the field of photovoltaic. Within the scope of the intention a photovoltaic-experimental system for the instruction at schools will be developed. As a complete system with the components fit into a special bag it should master all tass. After providing the first draft, an examination for using components being already on the market followed, as well as the experimental building up and testing of new developments. Selecting the most qualified components, several models were manufactured and later on a complete system was built up with having regard to the still necessary modifications. Ensuing the didactic material was achieved and the complete system was tested in practical operation. The result is a photovoltaic-experimental system capable of being produced in series production according to the target. With the developed product it is possible to show and to impart quick and easy the fundamentals in the field of photovoltaic. (orig.) [German] Die auf dem deutschen Markt erhaeltlichen Produkte wurden ermittelt und bewertet. Die angebotenen Systeme entsprechen nicht oder nur eingeschraenkt den Anforderungen an eine kompetente, umfassende und dem Thema Photovoltaik angemessene Ausbildung. Im Rahmen des Vorhabens wird ein Photovoltaik-Experimentiersystem fuer den Unterricht an allgemeinbildenden Schulen entwickelt. Als Komplettsystem mit der Unterbringung des Experimentiermaterials in einem speziellen Koffer soll es schueler-, themen-, und praxigerecht sein. Nach der Konzepterstellung erfolgte die Untersuchung zur Nutzung bereits auf dem Markt befindlicher Komponenten sowie die labormaessige Erstellung von Neuentwicklungen und deren Erprobung. Nach Vorauswahl der Komponenten wurden mehrere Muster hergestellt und spaeter mit noch notwendigen Aenderungen ein Gesamtsystem erstellt. Anschliessend

  11. The Importance of Precise Digital Elevation Models (DEM) in Modelling Floods

    Science.gov (United States)

    Demir, Gokben; Akyurek, Zuhal

    2016-04-01

    Digital elevation Models (DEM) are important inputs for topography for the accurate modelling of floodplain hydrodynamics. Floodplains have a key role as natural retarding pools which attenuate flood waves and suppress flood peaks. GPS, LIDAR and bathymetric surveys are well known surveying methods to acquire topographic data. It is not only time consuming and expensive to obtain topographic data through surveying but also sometimes impossible for remote areas. In this study it is aimed to present the importance of accurate modelling of topography for flood modelling. The flood modelling for Samsun-Terme in Blacksea region of Turkey is done. One of the DEM is obtained from the point observations retrieved from 1/5000 scaled orthophotos and 1/1000 scaled point elevation data from field surveys at x-sections. The river banks are corrected by using the orthophotos and elevation values. This DEM is named as scaled DEM. The other DEM is obtained from bathymetric surveys. 296 538 number of points and the left/right bank slopes were used to construct the DEM having 1 m spatial resolution and this DEM is named as base DEM. Two DEMs were compared by using 27 x-sections. The maximum difference at thalweg of the river bed is 2m and the minimum difference is 20 cm between two DEMs. The channel conveyance capacity in base DEM is larger than the one in scaled DEM and floodplain is modelled in detail in base DEM. MIKE21 with flexible grid is used in 2- dimensional shallow water flow modelling. The model by using two DEMs were calibrated for a flood event (July 9, 2012). The roughness is considered as the calibration parameter. From comparison of input hydrograph at the upstream of the river and output hydrograph at the downstream of the river, the attenuation is obtained as 91% and 84% for the base DEM and scaled DEM, respectively. The time lag in hydrographs does not show any difference for two DEMs and it is obtained as 3 hours. Maximum flood extents differ for the two DEMs

  12. Off-air treatment in waste treatment systems and landfills - consequences for practical operation. 62. information meeting of ANS e.V.; Abluftbehandlung bei MBA und Deponiebetrieb - Konsequenzen fuer die Praxis. 62. Informationsgespraech des ANS e.V.

    Energy Technology Data Exchange (ETDEWEB)

    Fricke, K.; Burth, M.; Dichtl, N.; Wallmann, R. (eds.)

    2001-07-01

    The new German Landfill Ordinance of 1 March 2001 specifies the requirements on construction and operation of mechanical-biological waste treatment plants and landfills as well as the continued operation of existing landfills. The conference provided current information of R + D projects as well as practical experience in Austria and Germany, with particular regard to the issues of off-air emissions and landfilling. [German] Seit dem 1. Maerz 2001 ist die Artikelverordnung rechtswirksam. Sie enthaelt Anforderungen an den Bau und Betrieb von mechanisch-biologischen Restabfallbehandlungsanlagen und Deponien. Die Abfallablagerungsverordnung hat darueber hinaus weitreichende Konsequenzen fuer die Betriebsdauer bestehender Deponien. Ziel der Tagung ist es, aktuelle Informationen aus laufenden Forschungs- und Entwicklungsvorhaben sowie Erfahrungen bei der praktischen Umsetzung zu praesentieren, die insbesondere zu den Themenkomplexen Abluftemissionen und Deponierung zur Zeit in Oesterreich und Deutschland vorliegen. (orig.)

  13. Stabilisation goals for concentrations of climate-relevant gaseous emissions: Effects and emission pathways. Final report; Stabilisierungsziele fuer Treibhausgaskonzentrationen: Eine Abschaetzung der Auswirkungen und der Emissionspfade. Abschlussbericht

    Energy Technology Data Exchange (ETDEWEB)

    Onigkeit, J.; Alcamo, J.; Kaspar, F.; Roesch, T.

    2000-04-01

    Two different stabilisation goals were assumed, i.e. 550 ppm and 450 ppm of carbon dioxide. First, the global anthropogenic carbon dioxide emissions were calculated that are permissible to reach these goals. Secondly, the global and regional environmental effects of these concentration goals were assessed. In this, carbon dioxide, nitric oxides and methane emissions from power generation, industry and agriculture were considered. Apart from an investigation of the global reduction strategies required, a key was developed for sharing the global reduction loads between Annex B countries and non-Annex B countries. To reach a stable concentration of 550 ppm carbon dioxide in the atmosphere, the global anthropogenic carbon dioxide emissions per annum may increase slightly until 2030 but must be lowered to the 1990 level by 2100. In the case of 450 ppm, the 1990 level must even be halved by 2100. The consequences of climate change for agriculture, natural vegetation, availability of water, and sea levels were investigated in consideration of regional variations in carbon dioxide emissions and emission reduction measures. In spite of extensive emission control, the area of reduced agricultural productivity will grow rapidly in both cases, and natural vegetation will be endangered, although with strong regional variations. [German] Ausgehend von zwei langfristigen Klimaschutzzielen (Stabilisierung der atmosphaerischen CO{sub 2}-Konzentration bei 550 ppm und bei 450 ppm) wurde mit Hilfe des IMAGE 2.1 Modells: (1) Eine Berechnung der globalen anthropogenen Treibhausgasemissionen durchgefuehrt, die zwischen 1990 und 2100 erlaubt sind, um diese Konzentrationsziele zu erreichen. (2) Wurde eine Abschaetzung der globalen und regionalen Umweltauswirkungen durch den Klimawandel durchgefuehrt, der mit diesen Konzentrationszielen einhergeht. Bei der Analyse wurden CO{sub 2}-, N{sub 2}O- und CH{sub 4} Emissionen aus dem Energie/Industrie- und dem landwirtschaftlichen Sektor

  14. Establishing design criteria for crankshaft thrust bearings in gasoline and diesel engines by computer simulations and experiments. Crankshaft thrust bearing design - final report; Auslegungskriterien fuer Kurbelwellenaxiallager in Otto- und Dieselmotoren durch rechnergestuetzte Simulation und experimentelle Untersuchungen. Axialgleitlagerauslegung - Abschlussbericht

    Energy Technology Data Exchange (ETDEWEB)

    Hunsicker, W. [Fachhochschule Mannheim (Germany). Inst. fuer Tribologie; Backhaus, K. [Univ. GH Kassel (Germany). Inst. fuer Maschinenelemente und Konstruktionstechnik; Schubert, W. [KS Gleitlager GmbH, Papenburg (Germany)

    2004-07-01

    Aim of the research-project was it to increase the calculation safety of crank shaft thrust bearings in combustion engines. The project was divided in two parts: (1) A simulation program to analyze the load bearing capacity of axial bearings under mixed lubrication has been developed at the Institut fuer Maschinenelemente und Konstruktionstechnik, University of Kassel. This part of the research-project has been presented at the FVV Herbsttagung in 2003. (2) The test runs with original parts were carried out on a newly designed thrust bearing test rig at the Institut fuer Tribologie, University of Applied Sciences in Mannheim. The following presentation shows the results of part 2. The experimental results show the influence of rotational frequency, load, bearing material, lateral run-out of the tread of the crankshaft and groove pattern. These test runs will help to dimension thrust bearings more efficiently. (orig.)

  15. Emission concepts for future passenger car diesel engines; Emissionskonzepte fuer zukuenftige Pkw-Dieselmotoren

    Energy Technology Data Exchange (ETDEWEB)

    Krueger, M.; Wiartalla, A.; Lichtenberg, T.; Koerfer, T. [FEV Motorentechnik, Aachen (Germany)

    2003-07-01

    guenstigen Kraftstoffverbrauch eines Dieselfahrzeugs beizubehalten. Vor diesem Hintergrund werden im Rahmen dieses Beitrages brennverfahrensseitige Massnahmen sowie Abgasnachbehandlungskonzepte hinsichtlich Wirkungsgrad undd Einfluss auf den Kraftstoffverbrauch analysiert. Es kann festgehalten werden, dass fuer den Pkw-Dieselmotor noch ein beachtliches Emissionsreduktionspotenzial erschlossen werden kann. Eine Erfuellung der nach 2005 diskutierten bzw. schon beschlossenen Emissionsgrenzwerte allein durch Weiterentwicklung des Brennverfahrens erscheint allerdings aus heutiger Sicht als schwierig. Insbesondere vor dem Hintergrund des Kraftstoffverbrauchs stellt sich eine geeignete Kombination von innermotorischen Massnahmen und Abgasnachbehandlung als der sinnvollere Weg dar. Entscheidend fuer den Erfolg eines solchen Konzeptes wird die Leistungsaufnahme der Abgasnachbehandlungsmassnahme im weitesten Sinne sein. Dazu zaehlt sicherlich das Thermomanagement von Motor und Abgassystem. Darueber hinaus muessen aber auch die Faktoren beruecksichtigt werden, die das Regenerationsverhalten der diskontinuierlich betriebenen Nachbehandlungssysteme Partikelfilter und NO{sub x}-Speicherkatalysator bestimmen. Hier sind in erster Linie das Kraftstoffadditiv und der Kraftstoffschwefel bzw. die Schwefelproblematik des NO{sub x}-Speicherkatalysators zu nennen. (orig.)

  16. Guide to the construction of small-scale hydropower plants; 2. ed.; Leitfaden fuer den Bau von Kleinwasserkraftanlagen

    Energy Technology Data Exchange (ETDEWEB)

    Berg, W.; Giesecke, J.; Grabitz, R.; Haakh, F.; Haury, H.G.; Horlacher, H.B.; Hutarew, A.; Latrille, W.; Mackert, W.; Mueller, P.; Sauer, K.; Schmid, H.; Schweickert, H.; Waller, H.

    1994-12-31

    Hydropower plays a prominent role in Baden-Wuerttemberg`s policy of promoting the use of renewable energy resources. This is due, firstly, to the fact that hydropower is a reliable, proven technology, and secondly to the favourable topographic and hydrological conditions Baden-Wuerttemberg offers for the development of hydropower. The Baden-Wuerttembergian Water Management Association hopes that this guide will provide the interested reader with sufficient information for assessing or initiating concrete projects. The individual chapters have been adapted from papers of the team of authors referred to in the foreword. They are largely representative of the Federal German Republic (Baden-Wuerttemberg). The guide thus provides a complement to the Manual of the International Electrotechnical Commission, the first German translation of which is contained in chapter 3. As this manual is required to be valid worldwide, it must necessarily be confined to technical and process organisational matters. The editors have been at pains t provide a concrete, practice-oriented rather than a textbook-like presentation of the subject. The Water Management Association and the authors hope that this guide will stimulate public interest in the continued development of small-scale hydropower plants in compliance with energy-political, private-economical, and ecological requirements. (orig.) [Deutsch] Die Wasserkraft nimmt im Hinblick auf eine staerkere Hinwendung zu regenerativen Energiequellen eine Vorreiterstellung in Baden-Wuerttemberg ein. Dies liegt in der zuverlaessigen und erprobten Technologie begruendet und in den guenstigen topographischen und hydrologischen Voraussetzungen fuer die Wasserkraftnutzung in Baden-Wuerttemberg. Der Wasserwirtschaftsverband Baden-Wuerttemberg hofft, mit dem `Leitfaden` den Interessenten genuegend Informationen an die Hand gegeben zu haben, die zur Beurteilung und gegebenenfalls zur Inangriffnahme eines konkreten Projektes erforderlich sind. Die

  17. GPU based contouring method on grid DEM data

    Science.gov (United States)

    Tan, Liheng; Wan, Gang; Li, Feng; Chen, Xiaohui; Du, Wenlong

    2017-08-01

    This paper presents a novel method to generate contour lines from grid DEM data based on the programmable GPU pipeline. The previous contouring approaches often use CPU to construct a finite element mesh from the raw DEM data, and then extract contour segments from the elements. They also need a tracing or sorting strategy to generate the final continuous contours. These approaches can be heavily CPU-costing and time-consuming. Meanwhile the generated contours would be unsmooth if the raw data is sparsely distributed. Unlike the CPU approaches, we employ the GPU's vertex shader to generate a triangular mesh with arbitrary user-defined density, in which the height of each vertex is calculated through a third-order Cardinal spline function. Then in the same frame, segments are extracted from the triangles by the geometry shader, and translated to the CPU-side with an internal order in the GPU's transform feedback stage. Finally we propose a "Grid Sorting" algorithm to achieve the continuous contour lines by travelling the segments only once. Our method makes use of multiple stages of GPU pipeline for computation, which can generate smooth contour lines, and is significantly faster than the previous CPU approaches. The algorithm can be easily implemented with OpenGL 3.3 API or higher on consumer-level PCs.

  18. Effect of aging in HDPE blended with DEM in decalin

    International Nuclear Information System (INIS)

    Silva, P.; Albano, C.; Karam, A.; Vargas, M.G.; Perera, R.

    2006-01-01

    Electron paramagnetic resonance (EPR) was used to study the effect of aging on irradiated samples of high-density polyethylene (HDPE) blended with diethyl maleate (DEM) in different proportions. Initially, we synthesize the HDPE using bis-(cyclopentadienyl) zirconium dichloride and P-MAO. The functionalization of the synthesized HDPE was carried out in a 10% weight/vol of polyethylene in decalin solution using different percentages of diethyl maleate (5, 10, 15 and 30% in weight). The samples were irradiated at 5, 15 and 30 kGy. An exponential decay in the total free radicals concentration was observed in the pure HDPE sample at the 15 and 30 kGy irradiation doses, as it was expected. For the 15 and 30 kGy irradiation doses the HDPE blended with 15 and 30% of DEM in decalin shows an increase in the total free radical concentrations as the storage time is increased. This behavior has been interpreted in terms of trapped free radicals. (Author)

  19. Multi-scale sensitivity analysis of pile installation using DEM

    Science.gov (United States)

    Esposito, Ricardo Gurevitz; Velloso, Raquel Quadros; , Eurípedes do Amaral Vargas, Jr.; Danziger, Bernadete Ragoni

    2017-12-01

    The disturbances experienced by the soil due to the pile installation and dynamic soil-structure interaction still present major challenges to foundation engineers. These phenomena exhibit complex behaviors, difficult to measure in physical tests and to reproduce in numerical models. Due to the simplified approach used by the discrete element method (DEM) to simulate large deformations and nonlinear stress-dilatancy behavior of granular soils, the DEM consists of an excellent tool to investigate these processes. This study presents a sensitivity analysis of the effects of introducing a single pile using the PFC2D software developed by Itasca Co. The different scales investigated in these simulations include point and shaft resistance, alterations in porosity and stress fields and particles displacement. Several simulations were conducted in order to investigate the effects of different numerical approaches showing indications that the method of installation and particle rotation could influence greatly in the conditions around the numerical pile. Minor effects were also noted due to change in penetration velocity and pile-soil friction. The difference in behavior of a moving and a stationary pile shows good qualitative agreement with previous experimental results indicating the necessity of realizing a force equilibrium process prior to any load-test to be simulated.

  20. Optimizing digital elevation models (DEMs) accuracy for planning and design of mobile communication networks

    Science.gov (United States)

    Hassan, Mahmoud A.

    2004-02-01

    Digital elevation models (DEMs) are important tools in the planning, design and maintenance of mobile communication networks. This research paper proposes a method for generating high accuracy DEMs based on SPOT satellite 1A stereo pair images, ground control points (GCP) and Erdas OrthoBASE Pro image processing software. DEMs with 0.2911 m mean error were achieved for the hilly and heavily populated city of Amman. The generated DEM was used to design a mobile communication network resulted in a minimum number of radio base transceiver stations, maximum number of covered regions and less than 2% of dead zones.

  1. DEM Resolution Impact on the Estimation of the Physical Characteristics of Watersheds by Using SWAT

    Directory of Open Access Journals (Sweden)

    Waranyu Buakhao

    2016-01-01

    Full Text Available A digital elevation model (DEM is an important spatial input for automatic extraction of topographic parameters for the soil and water assessment tool (SWAT. The objective of this study was to investigate the impact of DEM resolution (from 5 to 90 m on the delineation process of a SWAT model with two types of watershed characteristics (flat area and mountain area and three sizes of watershed area (about 20,000, 200,000, and 1,500,000 hectares. The results showed that the total lengths of the streamline, main channel slope, watershed area, and area slope were significantly different when using the DEM datasets to delineate. Delineation using the SRTM DEM (90 m, ASTER DEM (30 m, and LDD DEM (5 m for all watershed characteristics showed that the watershed sizes and shapes obtained were only slightly different, whereas the area slopes obtained were significantly different. The total lengths of the generated streams increased when the resolution of the DEM used was higher. The stream slopes obtained using the small area sizes were insignificant, whereas the slopes obtained using the large area sizes were significantly different. This suggests that water resource model users should use the ASTER DEM as opposed to a finer resolution DEM for model input to save time for the model calibration and validation.

  2. Monitoring with satellite data in opencast workings in the Lower Lusatian brown coal mining area; Monitoring mit Satellitendaten fuer Tagebaugebiete im Niederlausitzer Braunkohlenrevier

    Energy Technology Data Exchange (ETDEWEB)

    Pilarski, M. [uve Fernerkundungszentrum GmbH, Potsdam (Germany); Tischer, U. [Garten- und Landschaftsbau BUL-B-AUMANN GmbH, Senftenberg (Germany)

    2000-02-01

    The paper presents investigations carried out to develop a suitable tool for the determination, analysis and assessment of long-term changes in natural conditions in the region of opencast workings in the Lower Lusation brown coal mining area (Saxony, Germany). It is established that changes in nature can be defined with the aid of multitemporal data sets and remote sensing methods, using GIS (Geographical Information System) techniques. Seven Landsat-TM data sets for the period from 1985 to 1996, which were radiometrically calibrated and georeferenced, were selected to study the relationship between remotely sensed data and biotic and abiotic factors, such as habitat classification as well as soil types or ground-water levels. For this purpose the vegetation index NDVI (Normalized Differential Vegetation Index) was derived from the satellite data. Different trends estimate for the local and regional extent of changes, which are indicated by the NDVI variations, are discussed with regard to their cause and effect relations. (orig.) [German] Mit dem aus Satellitendaten abgeleiteten Vegetationsmerkmal NDVI koennen flaechendeckend Biotope charakterisiert werden. Diese als spektraler Vegetationszustand ermittelten Werte gestatten es, die interne Vegetationsstruktur einer raeumlichen Einheit und deren zeitliche Veraenderung festzustellen. Es konnte gezeigt werden, dass die Hoehe der Vitalitaetswerte in direktem Zusammenhang zu Typen von Biotopen und deren unterschiedlichen wesentlichen Standortbedingungen Boden und oberflaechennahe bindige Bildungen steht. Weiterhin wurde gezeigt, dass dieses Vegetationsmerkmal auch die langfristige generelle Wasserversorgung, repraesentiert durch monatliche Mittelwerte der Niederschlaege, widerspiegelt. Dieser Vegetationszustand ist deshalb in mehrfacher Hinsicht als ein Parameter fuer ein auf Biotope gerichtetes Monitoring geeignet. Er gestattet interne Veraenderungen von Biotopen festzustellen und er dient der Ermittlung eines

  3. The procedure of statutory approval including EIA for the Warndt/Luisenthal colliery; Das bergrechtliche Zulassungsverfahren mit UVP fuer das Bergwerk Warndt/Luisenthal

    Energy Technology Data Exchange (ETDEWEB)

    Matthes, U.; Wenk, N. [Prognos AG, Basel (Switzerland)

    2002-07-01

    The amendment of the Federal Mining Act (BBergG 1990) provides, concerning special mining projects, a procedure of the official approval of a plan including public participation and Environmental Impact Assessment (EIA). To fit the claim of checking all possible environmental impacts of the projects, the BBergG demands on level of the framework operating plan, that the EIA has to be more extensive and detailed, compared to former (framework operating) plans of mining projects. This commentary sets out these new professional requirements by example of a mining project with high impact on housing estate (in that on humans, cultural goods and real assets). The way, how the planning procedure was handled and the EIA, focussed on social indicators, has been carried out, contributed to a de-emotionalized dialog with the affected people. By this means solutions were found to reduce negative mining impacts. (orig.) [German] Seit der Novelle des Bundesberggesetzes (BBergG) im Jahre 1990 ist fuer bestimmte bergbauliche Vorhaben ein Planfeststellungsverfahren mit Oeffentlichkeitsbeteiligung und Umweltvetraeglichkeitspruefung (UVP) vorgeschrieben. Die Regelungen des BBergG verlangen bei der UVP wegen des Anspruchs, alle moeglichen Umwelteinwirkungen des Vorhabens bereits auf der Ebene des Rahmenbetriebsplanes einer umfassenden und abschliessenden Betrachtung zu unterziehen, eine gegenueber Rahmenbetriebsplaenen herkoemmlicher Art betraechtliche Untersuchungs- und Prueftiefe. Am Beispiel eines beantragten Abbauvorhabens, das grossflaechig besiedeltes Gebiet beruehrt, wird die Vorgehensweise dargestellt. Besonderes Schwergewicht lag, dem Vorhaben entsprechend, auf den bergbaulichen Auswirkungen auf die UVP-Schutzgueter 'Mensch' sowie 'Kultur- und sonstige Sachgueter'. Die Verfahrensberatung sowie die strukturierte und sachgerechte Analyse und Aufbereitung der Umweltwirkungen haben dazu beigetragen, den Dialog mit den Betroffenen zu versachlichen und gemeinsam

  4. Legal consequences emanating from EC directives and agreements of the WTO with respect to irradiation of food with ionizing radiation; Rechtliche Konsequenzen fuer die ionisierende Bestrahlung von Lebensmitteln aus EG-Richtlinien und WTO-Abkommen

    Energy Technology Data Exchange (ETDEWEB)

    Dederer, H.G. [Bonn Univ. (Germany). Inst. fuer Oeffentliches Recht

    1999-07-01

    The author discusses aspects of international harmonization of laws and regulations in this field and describes such activities at the European level and within the EU, and under WTO agreements. (orig./CB) [German] Zur Verwirklichung des Binnenmarktes fuer Lebensmittel kommen nach dem EG-Vertrag Massnahmen der Rechtsangleichung in Betracht (Art. 100a Abs. 1 EGV). Insoweit beruht die Freiheit des Lebensmittelverkehrs im Binnenmarkt auf der gemeinschaftsweiten Harmonisierung der nationalen lebensmittelrechtlichen Regelungen. Ausserhalb dieses harmonisierten Bereichs gewaehrleistet die unmittelbar im EG-Vertrag in Art. 30 verankerte Warenverkehrsfreiheit den freien Verkehr mit Lebensmitteln im gesamten Gebiet der Gemeinschaft. Insoweit folgt aus der Cassis de Dijon-Rechtsprechung des Gerichtshofes der Europaeischen Gemeinschaften (EuGH) das Prinzip der gegenseitigen Anerkennung: Lebensmittel, die in einem anderen Mitgliedstaat rechtmaessig hergestellt oder dort rechtmaessig in Verkehr gebracht worden sind, duerfen grundsaetzlich in jedem anderen Mitgliedsstaat vermarktet werden. Dabei stellt der Schutz der Verbraucher eine vom EuGH bereits in die Gewaehrleistung des freien Warenverkehrs in Art. 30 EGV hineingelesene ('immanente') Schranke dar. Daneben darf der freie Warenverkehr gemaess Art. 36 EGV ausdruecklich auch zum Schutz der menschlichen Gesundheit eingeschraenkt werden. In dem auf der Grundlage des Art. 100a Abs. 1 EGV harmonisierten Bereich des Warenverkehrs soll ein hohes Niveau des Gesundheits- und Verbraucherschutzes verwirklicht werden (vgl. Art. 100a Abs. 3 EGV). Art. 100a EGV wird auch die Kompetenzgrundlage fuer zwei sich ergaenzende EG-Richtlinien ueber die ionisierende Bestrahlung von Lebensmitteln sein, deren Entwuerfe gegenwaertig auf der Ebene der Europaeischen Gemeinschaft beraten werden. (orig.)

  5. Envolving the Operations of the TerraSAR-X/TanDEM-X Mission Planning System during the TanDEM-X Science Phase

    OpenAIRE

    Stathopoulos, Fotios; Guillermin, Guillaume; Garcia Acero, Carlos; Reich, Karin; Mrowka, Falk

    2016-01-01

    After the successful Global Coverage of the Digital Elevation Model, the TanDEM-X Science phase was initiated in September of 2014, dedicated to the demonstration of innovative techniques and experiments. The TanDEM-X Science phase had a large impact on the TerraSAR-X/TanDEM-X Mission Planning System. The two main challenges were the formation flying changes and the activation of a new acquisition mode, the so called Dual Receive Antenna (DRA) acquisition mode. This paper describes all action...

  6. Silage seepage and water protection. Production and recovery of silage seepage from animal feed and biomass for biogas plants. 7. ed.; Silagesickersaft und Gewaesserschutz. Anfall und Verwertung von Silagesickersaft aus Futtermitteln und Biomasse fuer Biogasanlagen

    Energy Technology Data Exchange (ETDEWEB)

    Spiekers, Hubert [Bayerische Landesanstalt fuer Landwirtschaft (LfL), Freising-Weihenstephan (Germany); Attenberger, Erwin [Bayerisches Landesamt fuer Umwelt, Augsburg (Germany)

    2012-11-15

    The production of silage is now standard and an important basis for a successful milk and beef production. Silage is also needed in agricultural biogas plants as a substrate for energy production. This publication is intended to serve agriculture as a source of information and guidance document for the construction and operation of silos and the administration as an orientating work aid. The factors influencing the accumulation of silage seepage and the possibilities of prevention in silage and silage management are presented and evaluated from environmental and legal perspective. [German] Die Produktion von Silage ist heute Standard und eine wichtige Grundlage fuer eine erfolgreiche Milch- und Rindfleischerzeugung. Silage wird auch in landwirtschaftlichen Biogasanlagen als Substrat zur Energieerzeugung benoetigt. Die vorliegende Publikation soll der Landwirtschaft als Informationsquelle und Handlungsanleitung fuer den Bau und Betrieb von Siloanlagen und der Verwaltung als orientierende Arbeitshilfe dienen. Die Einflussgroessen auf den Anfall an Sickersaeften und die Moeglichkeiten der Vermeidung bei der Silierung und dem Silagemanagement werden dargestellt und aus umwelt- und rechtlicher Sicht bewertet.

  7. Fraunhofer Institut fuer Molekularbiologie und Angewandte Oekologie (IME). Annual report 2015; Fraunhofer Institut fuer Molekularbiologie und Angewandte Oekologie (IME). Jahresbericht 2015

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2016-03-15

    For the Fraunhofer IME, 2015 was an outstanding year, including a record-breaking operating budget of around 33.9 million euro, of which an astounding 97.1% was from third party revenues. Business contracts accounted for around 47% of our turnover, which is also an extraordinary achievement. Our research scientists won awards for excellent results in 2015. For example, one Joseph von Fraunhofer Prize 2015 went to a team of researchers from Continental Tires Germany GmbH, Fraunhofer IME and the University of Muenster, developing natural rubber from dandelions as a sustainable raw material for the rubber processing industry. This project is an excellent embodiment of the ideals of the Fraunhofer-Gesellschaft and our working approach, our aim being to perform top-level scientific research, to think in terms of ecological and economic sustainability, and to develop original solutions to key challenges. In collaboration with industrial partners, these solutions bring specific products onto the market that strengthen Welcome Germany's standing as a research and business location as well as benefiting society. By developing research activities combining different core competencies, and by integrating perspectives from diverse fields of operation, we can enhance the value of our scientific and regulatory services. The contribution of our research scientists to the drawing up of guidelines and guidance documents is valued on a national and international level. In setting up the new business field 'Sustainable Agricultural Production of Substances', we have linked our competencies in analytics, soil science, active substance research and testing, as well as secondary raw materials and feedstuffs, with the know-how of external partners in plant cultivation and geographical information systems.

  8. Bundesanstalt fuer Fleischforschung: Annual report 1980

    Energy Technology Data Exchange (ETDEWEB)

    1983-02-01

    The objective of the Federal Institute for Meat Research is to contribute, through research and development, to the adequate provision of the Federal German population with high quality, where some meat and meat products including slaughter fat, eggs and poultry products, which are free of toxic residues. This includes the development of analytical procedures for the determination of toxic heavy metals in foods, and is the subject of four contributions to this Annual Report.

  9. Theoretical and experimental studies on the improvement of the time structure of the extracted electron beam from the stretcher ring ELSA; Theoretische und experimentelle Untersuchungen zur Verbesserung der Zeitstruktur des extrahierten Elektronenstrahls aus dem Stretcherring ELSA

    Energy Technology Data Exchange (ETDEWEB)

    Neckenig, M.

    1993-03-01

    Phaenomene erklaert, die im praktischen Betrieb einen Einfluss auf das Tastverhaeltnis haben. Aus dem Modell wurde ein Algorithmus abgeleitet, der die automatische Erzeugung einer Steuerkurve fuer die Veraenderung des Maschinenarbeitspunktes waehrend der Extraktion erlaubt. Es konnte gezeigt werden, dass der Mechanismus der Resonanzextraktion aus ELSA verstanden ist, was dadurch untermauert wird, dass sich das erreichte Tastverhaeltnis sehr gut mit dem Wert deckt, der theoretisch bei Beruecksichtigung der erkannten Effekte berechnet werden kann.

  10. Prevention, screening and therapy of thyroid diseases and their cost-effectiveness; Praevention, Screening und Therapie gutartiger Schilddruesenerkrankungen unter dem Aspekt von Kosten und Nutzen

    Energy Technology Data Exchange (ETDEWEB)

    Dietlein, M.; Moka, D.; Schmidt, M.; Theissen, P.; Schicha, H. [Koeln Univ. (Germany). Klinik und Poliklinik fuer Nuklearmedizin

    2003-10-01

    60%. (orig.) [German] Kosten/Nutzenanalysen in Bezug auf gutartige Schilddruesenerkrankungen sind in der Literatur unterrepraesentiert. Insbesondere die Erhebung eines Geldwertes pro gewonnenem Lebensjahr gestaltet sich methodisch schwierig: Der Nutzen praeventiver Massnahmen ist weit in die Zukunft verlagert. Der Einfluss einer unbehandelten Schilddruesenerkrankung auf die Lebenszeit wird ebenfalls erst durch einen langfristigen Horizont und dann eher epidemiologisch als individuell zu erfassen sein. Als Prophylaxe (primaere Praevention) sind Programme zum Ausgleich des Iodmangels sowie die Aufklaerung ueber den negativen Einfluss des Rauchens auf die Entwicklung einer Struma oder eines M. Basedows aus entscheidungstheoretischer Sicht sehr kosteneffektiv. Screening-Programme (sekundaere Praevention) werden fuer die Parameter TSH, Calcium und Calcitonin diskutiert. Eine besonders guenstige Kosten-Effektivitaet des TSH-Screenings ist in besonderen Lebensphasen (Neugeborene, Schwangerschaft, postpartal, hoeheres Alter, stationaerer Patient mit akuter Erkrankung) und bei definierten Vorbefunden (TSH>2mU/l, TPO-Antikoerper) aus klinisch-epidemiologischer Sicht zu erwarten, ohne dass hierzu gesonderte gesundheitsoekonomische Berechnungen vorgelegt wurden. Andererseits konnte die Kosten-Effektivitaet eines generellen TSH-Screening ab dem 35. Lebensjahr in einer qualitativ hochwertigen gesundheitsoekonomischen Studie bereits belegt werden. Die Therapiestrategien bei gutartigen Schilddruesenerkrankungen (tertiaere Praevention) zielen auf eine Minimierung sekundaerer Krankheitsfolgen (Vorhofflimmern, Myokardinfarkt, Herztod) und iatrogener Nebenwirkungen. Beispiele fuer eine solche tertiaere Praevention sind die definitive Therapie (Radioiodtherapie) der Immunhyperthyreose M. Basedow bei unguenstigen initialen Praedikatoren fuer eine Rezidivhyperthyreose, die Radioiodtherapie der latenten Hyperthyreose sowie die Radioiodtherapie der grossvolumigen Struma bei aelteren oder

  11. Consulting: a new area of business for energy supply utilities; Consulting - ein neues Geschaeftsfeld fuer Energieversorgungsunternehmen

    Energy Technology Data Exchange (ETDEWEB)

    Busse, H.; Oswald, H. [MVV-Energie AG im Internationalen Gasconsulting, Duggendorf (Germany)

    2000-03-01

    The radical changes in national and international markets in recent years will have a long-term effect on the future development of industry and of energy supply utilities. The dynamics and complexity of these processes are producing new challenges. These are leading to a departure from rigid structures in the supply enterprises, towards functional, process-oriented organizational structures. In addition, a whole series of new business activities is arising. One of these new strategic areas of business is consulting. In Germany, a range of regional and municipal supply utilities now offer consulting services for third parties on an intensified basis around the world. Since about 1990, larger municipal technical service organizations and regional energy supply utilities have been working on numerous projects both within Germany and abroad. It has become apparent that it is necessary to take a long breath (one to four years) from the time of obtaining the sale until the award of contract, particularly in the case of foreign projects. In addition to the demand for technical know-how, BOT (Build, Operate, Transfer) projects and assistance with financing and matters regarding structure, setting-up and organization of possible new projects are of particular interest. (orig.) [German] Die umfassenden Veraenderungen der nationalen und internationalen Maerkte in den letzten Jahren wirken nachhaltig auf die zukuenftige Entwicklung der Industrie und der Energieversorgungsunternehmen. Aus der Dynamik und Komplexitaet der Prozesse resultieren neue Herausforderungen. Diese fuehren zur Abkehr von starren Strukturen in den Versorgungsunternehmen hin zu funktionalen am Prozess orientierten Organisationsstrukturen. Zusaetzlich leiten sich daraus eine Reihe neuer Geschaeftsfelder ab. Eines dieser neuen strategischen Geschaeftsfelder ist Consulting. In Deutschland bieten verschiedene regional und kommunal taetige Versorgungsunternehmen verstaerkt Beratungsleistung fuer Dritte weltweit

  12. Forest report 2014 for Baden-Wuerttemberg; Waldzustandsbericht 2014 fuer Baden-Wuerttemberg

    Energy Technology Data Exchange (ETDEWEB)

    Meining, Stefan [Buero fuer Umweltueberwachung, Freiburg (Germany); Wilpert, Klaus v.; Schumacher, Joerg; Delb, Horst; Hartmann, Peter; Rubin, Lisa; John, Reinhold; Metzler, Berthold; Bublitz, Thomas [Forstliche Versuchs- und Forschungsanstalt Baden-Wuerttemberg, Freiburg im Breisgau (Germany); Augustin, Nicole [Bath Univ. (United Kingdom)

    2014-07-01

    The annual forest status report 2014 shows that the persistently high burdens have not fundamentally improved the health of the forests. In addition to significant improvements in soil conditions, which can be traced back to successful forest calcifications, climate change with its various impacts is a lasting burden on the forests. Unfortunately, the forest situation has deteriorated considerably compared to the previous year. With 42 per cent damaged trees, the third highest value has been reached since the start of the recordings about 3 years ago. This means that the medium-term trend towards the improvement of the forest state unfortunately does not continue. This is clearly evident in the crown condition as an important indicator of the health of the trees. The average needle / leaf loss of the trees has increased by 3.7 percentage points to 25.8 percent. The share of undamaged forest areas has fallen by nine percentage points to just 24 percent. These changes can be attributed to the very dry spring weather, the presence of harmful insects and a strong fruit formation. [German] Der jaehrliche Waldzustandsbericht 2014 zeigt, dass durch die unveraendert hohen Belastungen der Gesundheitszustand der Waelder sich nicht grundsaetzlich gebessert hat. Neben deutlichen Verbesserungen im Bodenzustand, die auf erfolgreiche Waldkalkungen zurueck zu fuehren sind, stellt insbesondere der Klimawandel mit seinen verschiedenen Auswirkungen eine dauerhafte Belastung der Waelder dar. Leider hat sich der Waldzustand gegenueber dem Vorjahr deutlich verschlechtert. Mit 42 Prozent geschaedigter Baeume wird der dritthoechste Wert seit Beginn der Aufnahmen vor rund 3 Jahren erreicht. Damit setzt sich der mittelfristige Trend zur Verbesserung des Waldzustandes leider nicht weiter fort. Beim Kronenzustand als wichtigem Indikator fuer den Gesundheitszustand der Baeume zeigt sich dies deutlich. Der mittlere Nadel-/Blattverlust der Baeume hat sich um 3,7 Prozentpunkte auf 25,8 Prozent

  13. Uncertainty of soil erosion modelling using open source high resolution and aggregated DEMs

    Directory of Open Access Journals (Sweden)

    Arun Mondal

    2017-05-01

    Full Text Available Digital Elevation Model (DEM is one of the important parameters for soil erosion assessment. Notable uncertainties are observed in this study while using three high resolution open source DEMs. The Revised Universal Soil Loss Equation (RUSLE model has been applied to analysis the assessment of soil erosion uncertainty using open source DEMs (SRTM, ASTER and CARTOSAT and their increasing grid space (pixel size from the actual. The study area is a part of the Narmada river basin in Madhya Pradesh state, which is located in the central part of India and the area covered 20,558 km2. The actual resolution of DEMs is 30 m and their increasing grid spaces are taken as 90, 150, 210, 270 and 330 m for this study. Vertical accuracy of DEMs has been assessed using actual heights of the sample points that have been taken considering planimetric survey based map (toposheet. Elevations of DEMs are converted to the same vertical datum from WGS 84 to MSL (Mean Sea Level, before the accuracy assessment and modelling. Results indicate that the accuracy of the SRTM DEM with the RMSE of 13.31, 14.51, and 18.19 m in 30, 150 and 330 m resolution respectively, is better than the ASTER and the CARTOSAT DEMs. When the grid space of the DEMs increases, the accuracy of the elevation and calculated soil erosion decreases. This study presents a potential uncertainty introduced by open source high resolution DEMs in the accuracy of the soil erosion assessment models. The research provides an analysis of errors in selecting DEMs using the original and increased grid space for soil erosion modelling.

  14. Meteorological systems for hydrological applications; Meteorologische Systeme fuer hydrologische Anwendungen

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1993-12-31

    The development of hydrology with its many practical applications in water management has led to a great demand for hydrometeorological data, variables derived from meteorological measurements, and models. The report shows the many fields in which meteorological data are required in hydrology and water management. Measuring networks and methods are described and critically assessed, including remote measurement by radar and satellite. For the hydrologist, the most important variables to be derived are the regional precipitation and evaporation, each with the error source and size. Other factors of interest are the snowbreak, the expected maximum precipitation (rain), the statistical derivation of strong rain, and regionalisation methods for all variables derived. These methods are presented. The possibilities of meteorology, especially (WMO) in the field of data transmission systems are assessed. (orig./KW) [Deutsch] Die Entwicklung der Hydrologie mit ihren zahlreichen wasserwirtschaftlichen Anwendungen hat zu einem grossen Bedarf an hydrometeorologischen Daten, aus meteorologischen Messungen abgeleiteten Groessen und auch an Modellen gefuehrt. Wo ueberall sich ein Bedarf an meteorologischen Daten in Hydrologie und Wasserwirtschaft eingestellt hat, ist in diesem Bericht zusammengefasst. Es werden die verschiedenen Messnetze und Messverfahren beschrieben und kritisch beurteilt, auch die Radar- und Satellitenfernerkundung gehoeren dazu. Fuer den Hydrologen zaehlt zu den wichtigsten abgeleiteten Groessen der Gebietsniederschlag und die Gebietsverdunstung, jeweils mit Angabe von Fehlerquelle und Fehlerschwankung. Von Interesse sind auch die Schneeschmelze, der vermutlich maximale Niederschlag (Regen), die statistische Ableitung von Starkregen und Regionalisierungsmethoden aller abgeleiteten Groessen. Diese Verfahren werden vorgestellt. Die quantitative Niederschlagsvorhersage wird wegen ihrer Bedeutung fuer die operationellen hydrologischen Vorhersagen eingehend

  15. Bundesamt fuer Strahlenschutz (BfS). Annual report 1991

    International Nuclear Information System (INIS)

    1992-08-01

    The progress report submitted by Bundesamt fuer Strahlenschutz reveals that this federal radiation protection agency is not only entrusted with the fulfillment of the federal administrative tasks imposed by law but engages in applications-oriented research regarding the operational, metrological and health-related aspects of radiation protection, regarding nuclear safety and radioactive waste management. In addition, BfS takes care of public-relations tasks. The reports submitted by the BfS departments are completed by summaries of the main research results. (DG) [de

  16. Environmental protection by cost minimization: Least Cost Planning for traffic. Includes a guide for the application in local communities; Umweltentlastung durch Kostenminimierung: Least Cost Planning im Verkehr. Mit Leitfaden fuer die Anwendung in Kommunen

    Energy Technology Data Exchange (ETDEWEB)

    Bracher, T.; Diegmann, V.; Eckart, C.F.; Liwicki, M.; Lobenberg, G.; Wetzel, C. [Gesellschaft fuer Informatik, Verkehrs- und Umweltplanung mbH (IVU), Berlin (Germany); Bergmann, M.; Uricher, A.; Lueers, A. [Oeko-Institut, Inst. fuer Angewandte Oekologie e.V., Freiburg im Breisgau (Germany); Becker, U.; Karl, G.; Karl, B.; Voellings, A. [Technische Univ. Dresden (Germany). Lehrstuhl fuer Verkehrsoekologie

    1999-08-01

    den Energiesektor entwickelte Least Cost Planning zu uebertragen. Auf der Basis einer Analyse der in der Literatur dokumentierten Ansaetze und der vorhandenen Bewertungsverfahren fuer oeffentliche Massnahmen wurden Anforderungen an Methodik und Entwicklung eines verbesserten Bewertungsverfahrens formuliert. Dieses muss verkehrsmitteluebergreifend (intermodal) und verkehrsuebergreifend (integriert) sein. Das entwickelte Verfahren ermoeglicht erstens die Darstellung der Verkehrsausgaben und Einnahmen einer Stadt im Jahresueberblick, und zweitens die vergleichende Bewertung von Planungsvarianten. Dies wurde anhand verschiedener Varianten fuer die Erschliessung eines Gewerbegebiets im Norden Freiburgs illustriert. Dabei wurden drei Varianten untersucht: die Verlaengerung einer Stadtbahnstrecke, die Verdichtung des Busverkehrsnetzes und die Einrichtung von Service-Stationen und weitere Foerdermassnahmen fuer den Fahrradverkehr. Neben den Berechnungen von Einnahmen und Ausgaben fuer jede Variante wurde eine uebersichtliche Darstellung von Auswirkungen auf die Verkehrsnachfrage, die Belastung mit Luftschadstoffen und Laerm sowie den Flaechenverbrauch entwickelt. Im Ergebnis schneidet die Erschliessung mit dem Fahrrad tendenziell guenstig ab. Der Abschlussbericht umfasst drei Baende sowie einen Leitfaden zur Anwendung des Verfahrens in Kommunen. Dazu gehoert ein Satz Tabellen im Excel Format, der die leichte Anwendung ermoeglicht. (orig.)

  17. Comparative DEMS study on the electrochemical oxidation of carbon blacks

    DEFF Research Database (Denmark)

    Ashton, Sean James; Arenz, Matthias

    2012-01-01

    Publication year: 2012 Source:Journal of Power Sources, Volume 217 Sean J. Ashton, Matthias Arenz The intention of the study presented here is to compare the electrochemical oxidation tendencies of a pristine Ketjen Black EC300 high surface area (HSA) carbon black, and four graphitised counterparts...... heat-treated between 2100 and 3200 °C, such as those typically used as corrosion resistant carbon (CRC) supports for polymer electrolyte membrane fuel cell (PEMFC) catalysts. A methodology combining cyclic voltammetry (CV) and differential electrochemical mass spectrometry (DEMS) is used, which allows......; however, CRC samples graphitised =2800 °C did not exhibit this same behaviour. Highlights ¿ We quantitatively determine electrooxidation of carbon support materials. ¿ We can distinguish between the total and partial electrooxidation. ¿ Non or mildly heat treated carbon forms passivating layer. ¿ Heat...

  18. Pharmakobotanische Untersuchungen von Lavendelsorten auf dem Plattensee- Plateau

    Directory of Open Access Journals (Sweden)

    Tóth, Frida

    2014-09-01

    Full Text Available Auf dem Hof Dörgicsei Levendula Major GmbH wurden 9 Lavendelsorten (6 Sorten von Lavandula angustifolia und 3 Sorten von Lavandula x intermedia untersucht. Neben den morphologischen und Wachstumseigenschaften wurden auch Frisch- und Trockengewichte bewertet. Quantitative und qualitative Untersuchungen von den Blüten- und Ätherischöldrogen wurden auch durchgeführt. Die statistische Analyse zeigte signifikant höhere Erträge bei den Sorten L. angustifolia ’Essence Purple’ und L. x intermedia ’Edelweiss’. Gehalt und Zusammensetzung von ätherischem Öl war eindeutig bei der Sorte L. angustifolia ’Ellagance Purple’ am günstigsten.

  19. Inferring sediment connectivity from high-resolution DEMs of Difference

    Science.gov (United States)

    Heckmann, Tobias; Vericat, Damià

    2017-04-01

    Topographic changes due to the erosion and deposition of bedrock, sediments and soil can be measured by differencing Digital Elevation Models (DEM) acquired at different points in time. So-called morphological sediment budgets can be computed from such DEMs of Difference (DoD) on an areal rather than a point basis. The advent of high-resolution and highly accurate surveying techniques (e.g. LiDAR, SfM), together with recent advances of survey platforms (e.g. UaVs) provides opportunities to improve the spatial and temporal scale (in terms of extent and resolution), the availability and quality of such measurements. Many studies have used DoD to investigate and interpret the spatial pattern of positive and negative vertical differences in terms of erosion and deposition, or of horizontal movement. Vertical differences can be converted to volumes, and negative (erosion) and positive (deposition) volumetric changes aggregated for spatial units (e.g., landforms, hillslopes, river channels) have been used to compute net balances. We argue that flow routing algorithms common in digital terrain analysis provide a means to enrich DoD-based investigations with some information about (potential) sediment pathways - something that has been widely neglected in previous studies. Where the DoD indicates a positive surface change, flow routing delineates the upslope area where the deposited sediment has potentially been derived from. In the downslope direction, flow routing indicates probable downslope pathways of material eroded/detached/entrained where the DoD shows negative surface change. This material has either been deposited along these pathways or been flushed out of the area of investigation. This is a question of sediment connectivity, a property of a system (i.e. a hillslope, a sub-/catchment) that describes its potential to move sediment through itself. The sediment pathways derived from the DEM are related to structural connectivity, while the spatial pattern of (net

  20. Cross Validation on the Equality of Uav-Based and Contour-Based Dems

    Science.gov (United States)

    Ma, R.; Xu, Z.; Wu, L.; Liu, S.

    2018-04-01

    Unmanned Aerial Vehicles (UAV) have been widely used for Digital Elevation Model (DEM) generation in geographic applications. This paper proposes a novel framework of generating DEM from UAV images. It starts with the generation of the point clouds by image matching, where the flight control data are used as reference for searching for the corresponding images, leading to a significant time saving. Besides, a set of ground control points (GCP) obtained from field surveying are used to transform the point clouds to the user's coordinate system. Following that, we use a multi-feature based supervised classification method for discriminating non-ground points from ground ones. In the end, we generate DEM by constructing triangular irregular networks and rasterization. The experiments are conducted in the east of Jilin province in China, which has been suffered from soil erosion for several years. The quality of UAV based DEM (UAV-DEM) is compared with that generated from contour interpolation (Contour-DEM). The comparison shows a higher resolution, as well as higher accuracy of UAV-DEMs, which contains more geographic information. In addition, the RMSE errors of the UAV-DEMs generated from point clouds with and without GCPs are ±0.5 m and ±20 m, respectively.

  1. Dementia-free life expectancy (demFLE) in the Netherlands

    NARCIS (Netherlands)

    Perenboom, R.J.M.; Boshuizen, H.C.; Breteler, M.M.B.; Alewijn, O.; Water, H.P.A. van de

    1996-01-01

    To gain an insight into the burden of dementia in an aging society, life expectancy with dementia and its counterpart dementia-free life expectancy (DemFLE) in The Netherlands are presented. Sullivan's method was used to calculate DemFLE. For elderly living either independently or in homes for the

  2. INFLUENCE OF DEM IN WATERSHED MANAGEMENT AS FLOOD ZONATION MAPPING

    Directory of Open Access Journals (Sweden)

    M. Alrajhi

    2016-06-01

    Full Text Available Despite of valuable efforts from working groups and research organizations towards flood hazard reduction through its program, still minimal diminution from these hazards has been realized. This is mainly due to the fact that with rapid increase in population and urbanization coupled with climate change, flood hazards are becoming increasingly catastrophic. Therefore there is a need to understand and access flood hazards and develop means to deal with it through proper preparations, and preventive measures. To achieve this aim, Geographical Information System (GIS, geospatial and hydrological models were used as tools to tackle with influence of flash floods in the Kingdom of Saudi Arabia due to existence of large valleys (Wadis which is a matter of great concern. In this research paper, Digital Elevation Models (DEMs of different resolution (30m, 20m,10m and 5m have been used, which have proven to be valuable tool for the topographic parameterization of hydrological models which are the basis for any flood modelling process. The DEM was used as input for performing spatial analysis and obtaining derivative products and delineate watershed characteristics of the study area using ArcGIS desktop and its Arc Hydro extension tools to check comparability of different elevation models for flood Zonation mapping. The derived drainage patterns have been overlaid over aerial imagery of study area, to check influence of greater amount of precipitation which can turn into massive destructions. The flow accumulation maps derived provide zones of highest accumulation and possible flow directions. This approach provide simplified means of predicting extent of inundation during flood events for emergency action especially for large areas because of large coverage area of the remotely sensed data.

  3. Development of ecological and economical super-insulations for various applications. Subproject 1: scientific development of ecological super-insulations for industrial application. Subproject 2: experimental synthesis and development of a pilot plant for continuously production and realisation of multilayer-insulation materials. Final report; Entwicklung oekologischer und wirtschaftlicher Super-Isolationen fuer vielfaeltige Anwendungen. Teilvorhaben 1: Wissenschaftliche Entwicklung oekologischer Super-Isolationen fuer industrielle Anwendungen. Teilvorhaben 2: Experimentelle Struktursynthese und Entwicklung einer Technikumsanlage zur kontinuierlichen Herstellung von Mehrschicht-Daemmstoffen. Schlussbericht

    Energy Technology Data Exchange (ETDEWEB)

    Offermann, P.; Freudenberg, C.; Schenk, A.; Doerfel, A.; Hoffmann, G.; Roedel, H.; Schierz, C.; Hopf, W.

    2002-07-01

    deliverables. A precondition for this is the continued work and the successful combination of the present solutions with new innovative materials. (orig.) [German] Waermedaemmstoffe finden in unterschiedlichen Bereichen, aus denen ihre speziellen Aufgaben resultieren, Anwendung. Materialien wie Daemmstoffe aus Mineralfasern und Schaumkunststoffe werden im Bauwesen und fuer die Industriedaemmung eingesetzt. Waermedaemmstoffe aus natuerlichen Rohstoffen finden, wenn auch nur begrenzt, im Bauwesen Anwendung. Im Bekleidungsbereich werden neben Vliesstoffen aus synthetischen Polymeren oder Schafwolle besonders im out-door-Bereich gestrickte Fleece verwendet. Die Zielstellung des Projektes besteht in der Entwicklung eines Daemmmaterials mit sehr geringer Waermeleitfaehigkeit bei sehr geringer Dichte sowie hohen Freiheitsgraden hinsichtlich der Struktur- und Stoffparameter. Die Umsetzung erfolgt mit dem Verfahren der elektrostatischen Beflockung. Es wird ein Rechenmodell zur Ermittlung optimaler Strukturen hinsichtlich Waermeleitfaehigkeit und Dichte erstellt. Im Anschluss an eine anforderungsgerechte Materialauswahl werden praktische Untersuchungen zur Wirkungsweise des Materials durchgefuehrt. Es wird eine Technikumsanlage zur kontinuierlichen Herstellung des Materials installiert und erprobt. Das Ergebnis des Projektes besteht in einer sehr variablen gestaltbaren Daemmstoffstruktur mit hervorragenden Eigenschaften. Das entwickelte Material wird als Super-Isolations-Flock-Daemmstoff bezeichnet. Bei definierten Strukturbedingungen und entsprechender Materialauswahl koennen Werte fuer die Waermleitfaehigkeit im Bereich von 0,027 W/mK und 0,030 W/mK erreicht werden. Die Dichte fuer derartige Strukturen liegt im Bereich zwischen 10 kg/m{sup 3} und 20 kg/m{sup 3}. Fuer Anwendungsbeispiele ohne hohen mechanische Anforderunge koennen Strukturen mit einer Dichte von ca. 7 kg/m{sup 3} erzielt werden. Der Super-Isolations-Flock-Daemmstoff findet im Bekleidungsbereich sowie im technischen

  4. Bundesanstalt fuer Martialforschung und -pruefung (BAM). Annual report 2001; Bundesanstalt fuer Materialforschung und -pruefung (BAM). Jahresbericht 2001

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-07-01

    The volume reports the activities of the BAM, (Federal Office for Materials Research and Testing), and its departments for Analytical Chemistry/Reference Materials, Chemical Safety Engineering, Hazardous Materials Containment, Environmental Compatibility of Materials, Technology of Structural Materials, Polymers, Structural Stability and Safety, Materials Protection/Nondestructive Testing, and for Scientific-Technical Interdisciplinary Activities. (MM) [German] Der vorliegende Band berichtet ueber die Aktivitaeten der Bundesanstalt fuer Materialforschung und -pruefung und ihrer Abteilungen Analytische Chemie/Referenzmaterialien, Chemische Sicherheitstechnik, Gefahrgutumschliessungen, Umweltvertraeglichkeit von Materialien, Werkstofftechnik der Konstruktionswerkstoffe, Funktion von Polymeren, Bauwerkssicherheit, Materialschutz/Zerstoerungsfreie Pruefung und Technisch-wissenschaftliche Querschnittsfunktionen. (MM)

  5. Achievement in research on ion beam application under the scientific cooperation program with the Gesellschaft fuer schwerionenforschung mbH

    Energy Technology Data Exchange (ETDEWEB)

    Yoshida, Masaru; Maekawa, Yasunari (eds.) [Japan Atomic Energy Research Inst., Takasaki, Gunma (Japan). Takasaki Radiation Chemistry Research Establishment

    2003-03-01

    The Japan Atomic Energy Research Institute (JAERI) and the Gasellshaft fuer Schwerionenforshung mbH (GSI) signed a memorandum of 'Research and Development in the Field of Ion Beam Application' in January, 1991 and started the cooperative research program. The cooperation has been implemented by means of joint research between JAERI and GSI, exchange of scientific and technical experts, and providing mutual exchange of research materials as well as technical information. This report summarizes the cooperative research activities under the cooperative research program in the last 12 years. The list of publications and several articles relating to this cooperative research program are attached as an appendix. All the attached articles are reprinted with permission from the publishers. (author)

  6. Measurement of the charmonium production and energy calibration for electrons with the ATLAS experiment; Messung der Charmonium-Produktion und Energiekalibration fuer Elektronen mit dem Atlas-Experiment

    Energy Technology Data Exchange (ETDEWEB)

    Handel, Carsten

    2011-11-29

    The cross section of Charmonium production was measured using data from pp collisions at {radical}(s)=7 TeV taken by the Atlas experiment at the LHC in 2010. To improve the necessary knowledge of the detector performance, a calibration of the energy was performed. Using electrons from decays of the Charmonium, the energy scale of the electromagnetic calorimeters was studied at low energies. After applying the calibration, deviations in the energy measurement were found to be lower than 0.5% by comparing with energies determined in Monte Carlo simulations.rnrnrnWith an integrated luminosity of 2.2 pb{sup -1}, a first measurement of the inclusive cross section of the process pp{yields}J/{psi}(e{sup +}e{sup -})+X at {radical}(s)=7 TeV was done. For this, the accessible region of transverse momenta p{sub T,ee}>7 GeV and of rapidities vertical stroke y{sub ee} vertical stroke <2.4 was used. Differential cross sections for the transverse momentum p{sub T,ee}, and for the rapidity vertical stroke y{sub ee} vertical stroke were determined. Integration of the differential cross sections yields the values (85.1{+-}1.9{sub stat}{+-}11.2{sub syst}{+-} 2.9{sub Lum}) nb, and (75.4 {+-} 1.6{sub stat} {+-} 11.9{sub syst} {+-} 2.6{sub Lum}) nb for {sigma} (pp{yields}J/{psi}X)BR(J/{psi}{yields}e{sup +}e{sup -}), being compatible within systematics. Comparisons with measurements of the process pp{yields} J/{psi}({mu}{sup +}{mu}{sup -})+X done by Atlas and CMS have shown good agreement. To compare with theory, predictions from different models in next-to-leading order, and partially considering contributions in next-to-next-to-leading order were combined. Comparisons show a good agreement when taking into account contributions in next-to-next-to-leading order.

  7. Drainage at the Auguste Victoria mine. Motor management system for safe operation; Wasserhaltung auf dem Bergwerk Auguste Victoria. Motormanagementsystem fuer den sicheren Betrieb

    Energy Technology Data Exchange (ETDEWEB)

    Zimmermann, E. [Siemens AG, Nuernberg (Germany). Bereich Automation and Drives

    2008-05-13

    Application of the new motor management system 'Simocode pro' of Siemens, which is used for control, monitoring and protection of the water valves, in order to pump the mine water to the surface from a depth of 1,000 m. The equipment is connected underground via the bus system 'Profibus DP' in order to permit communication from the mine control room. (orig.)

  8. Heat grids today and after the German Renewable Energies Act (EEG). A business segment for the agriculture?; Waermenetze heute und nach dem EEG. Ein Betriebszweig fuer die Landwirtschaft?

    Energy Technology Data Exchange (ETDEWEB)

    Clemens, Dietrich; Billerbeck, Hagen [Treurat und Partner Unternehmensberatungsgesellschaft mbH, Lueneburg (Germany). Abt. ' ' Climate and Energy' '

    2016-08-01

    The development of a centralised and sustainable heat supply through the construction of heat grids offers consumers numerous advantages compared to a decentralised energy supply of residential and commercial properties. Where the migration to centralised heat supply relegates fossil fuels through the long-term incorporation of sustainable renewable energy sources, the projects make an important contribution towards meeting the government's climate protection goals. Heat generation and heat sales from renewable energy sources should be ensured in the long term. In the countryside, biogas plant operators are frequently the initiators of heat grid investments, or they take on the role of supplier for the provision of low-cost CHP heat from cogeneration units. In view of the limited remuneration period under the terms of the German Renewable Energy Act, the clock is ticking for the establishment of a centralised heat supply. This paper presents the advantages and disadvantages of a centralised, sustainable heat supply and additionally considers the flexibi/isation of biogas plants in view of the construction of the heat grid and the associated infrastructure. A focus is placed on the security of supply for customers after the discontinuation of remuneration under the German Renewable Energy Act and on how a competitive heat price from alternative energy sources can continue to be ensured.

  9. Cost benefit analysis of energy conservation measures on the motor car traffic sector. Nutzen-Kosten-Analyse fuer Energiesparmassnahmen auf dem Sektor Kraftwagenverkehr

    Energy Technology Data Exchange (ETDEWEB)

    Bruner-Newton, I.; Lenz, H.P.; Vecernik, P.; Biberschick, D.; Wailzer, F.

    1981-01-01

    The book consists of 6 chapters and an introduction. The following subjects are discussed: Chapter 2: Search for relevant publications. Chapter 3: Austria's energy situation and its influence on individual motor car traffic. Chapter 4: Ways to reduce fuel consumption. Chapter 5: Cost benefit analyses. Chapter 6: Evaluation of the possible energy conservation measures.

  10. Structural elements of mechanical engineering 2. Power train elements. 6. ed.; Konstruktionselemente des Maschinenbaus 2. Grundlagen von Maschinenelementen fuer Antriebsaufgaben

    Energy Technology Data Exchange (ETDEWEB)

    Steinhilper, W. [Kaiserslautern Univ. (Germany). Lehrstuhl fuer Maschinenelemente und Getriebetechnik; Sauer, B. (eds.) [Technische Univ. Kaiserslautern (Germany). Lehrstuhl fuer Maschinenelemente und Getriebetechnik

    2008-07-01

    The Steinhilper/Roeper textbooks have become standard textbooks of German technical universities. This is the 6th edition, published under the new name 'Structural elements of mechanical engineering' by Steinhilper/Sauer, a renowned team of expert authors, has been completely revised and re-edited. In Vol. 2, the standard chapters on friction, wear, lubrication, bearings, sliding bearings, rolling bearings, and seals, have been completely updated. There are new chapters on: Power train systems, transmission systems and brakes, toothed gears and toothed gear drives, traction drives, friction transmission, sensors and actuators. The two-volume textbook covers the whole spectrum of typical elements of mechanical engineering. The information, much of which goes deeper than just basic knowledge, addresses students of universities and technical universities. This makes the book also a useful reference manual for the daily work of practical engineers. (orig.) [German] Die Baende der Maschinen- und Konstruktionselemente von Steinhilper/Roeper haben sich als Standard-Lehrbuecher an Technischen Hochschulen durchgesetzt. Unter dem Titel Steinhilper/Sauer: Konstruktionselemente des Maschinenbaus wurde das Werk von einem ausgewiesenen Autorenteam aktualisiert und grundlegend ueberarbeitet. Im vorliegenden Band 2 sind die bisherigen Kapitel Reibung, Verschleiss und Schmierung, Lagerungen, Gleitlager und Waelzlager sowie Dichtungen komplett ueberarbeitet. Neu hinzu gekommen sind: Einfuehrung in Antriebssysteme, Kupplungen und Bremsen, Zahnraeder und Zahnradgetriebe, Zugmittelgetriebe, Reibradgetriebe sowie Sensoren und Aktoren. Die 6. Auflage stellt eine aktualisierte und berichtigte Fassung dar. Die beiden Baende des Lehrwerks umfassen das gesamte Spektrum der typischen Konstruktions- und Maschinenelemente. Die Inhalte sind auf die Ausbildung an Universitaeten und Technischen Hochschulen abgestimmt und gehen teilweise ueber das Grundlagenwissen hinaus. So stellen die

  11. Using multiple resources for the driver-vehicle-interaction; Moeglichkeiten der Nutzung unterschiedlicher Ressourcen fuer die Fahrer-Fahrzeug-Interaktion

    Energy Technology Data Exchange (ETDEWEB)

    Vollrath, M. [DLR, Braunschweig (Germany). Inst. fuer Verkehrsfuehrung und Fahrzeugsteuerung; Totzke, I. [Wuerzburg Univ. (Germany). Interdisziplinaeres Zentrum fuer Verkehrswissenschaften

    2003-07-01

    New information systems and additional vehicle functions require the driver to engage in an interaction with the car which may distract him from driving. Following the model of multiple resources (e.g., [9]) this distraction will be strong if the visual channel is used for the information input and if a motor reaction is necessary. To avoid this interference, a driver-vehicle-interaction could use the acoustic channel and verbal reactions. As speech recognition and speech output is still problematic in the car, driver assistance systems can be introduced to assist the driver and free resources which can be used for the interaction. The paper presented here tests these two approaches in a driving simulation. Although both approaches show avoid interference to some extent, negative effects can also be demonstrated. Thus, these strategies should be well designed and tested. (orig.) [German] Informationssysteme im Fahrzeug und zusaetzliche Fahrzeugfunktionen fuehren dazu, dass der Fahrer vermehrt in eine Interaktion mit dem Fahrzeug eingebunden wird, die vom Fahren ablenken kann. Entsprechend einem Ressourcenmodell der menschlichen Aufmerksamkeit (z. B. [9]) ist diese Ablenkung dann besonders stark, wenn bei der Informationsaufnahme der visuelle Kanal genutzt wird und die Handlungsausfuehrung motorisch geschieht. Deshalb wird gefordert, die Fahrer-Fahrzeug-Interaktion ueber Sprachausgabe und Sprachkennung zu gestalten. Da dies nach wie vor technisch im Fahrzeug (Umgebungsbedingungen, Wortschatz) schwierig ist, sollen alternativ Fahrerassistenzsysteme die negativen Effekte kompensieren. Im vorliegenden Beitrag werden diese beiden Ansaetze geprueft. Zwar zeigen sich fuer beide Ansaetze Teilerfolge, aber eine unkritische Anwendung kann auch negative Effekte nach sich ziehen. (orig.)

  12. Technology for profounds; Technik fuers Tiefgruendige

    Energy Technology Data Exchange (ETDEWEB)

    Daehn, Astrid

    2013-05-15

    The entire planning of offshore wind farms is based on a reliable preliminary exploration of the sea bed. Thus, researchers have developed a new method with which the sea bed can be inspected much more accurate than before. For this, the Fraunhofer Institute for Wind Energy and Energy System Technology (Bremerhaven, Federal Republic of Germany) has developed a preliminary exploration procedure that examines the sedimentary structure by means of sound waves. Compared to conventional methods, this preliminary exploration procedure has two advantages: (1) A special air pressure pulser (airgun) is used as a special air pressure pulse. The airgun produces air bubbles that are pumped into the water exercising pressure and thus producing an acoustic signal; (2) The reflected acoustic signals are recorded not only by a single detector, but also by 60 hydrophones that are pulled at a tube behind the boat.

  13. Power engineering. Systems for energy conversion. Compact knowledge for study and profession. 4. upd. and enl. ed.; Energietechnik. Systeme zur Energieumwandlung. Kompaktwissen fuer Studium und Beruf

    Energy Technology Data Exchange (ETDEWEB)

    Zahoransky, Richard A.

    2009-07-01

    This textbook imparts to the reader a fundamental understanding for relations of energy conversion processes. It comprises the total spectra of energy engineering, starting with fundamentals of energy process engineering via description of operating power plants (all types) to energy distribution and - storage. Main topics are sustainable energy systems from renewable energy sources. combined systems (e.g. Gas/steam turbine power plants) and plants with cogeneration (e.g. modular cogeneration plants). A new chapter Kyoto-Protocol was created as a concept of emissions-free coal-fired power plants. A new wording for deregulation of energy markets was received. Numerous texts and graphs were been revised. Chapter 18 ''Deregulation of Energy Markets'' is newly revised. Due to its didactic concepts the book directs not only to students but also everybody, who is inerested into actual questions of energy engineering. (org./GL) [German] Dieses Lehrbuch vermittelt dem Leser ein grundlegendes Verstaendnis fuer die Zusammenhaenge der Energieumwandlungsprozesse. Es umfasst die gesamte Bandbreite der Energietechnik. Die Schwerpunkte reichen von nachhaltigen, erneuerbaren Energietechniken, Kombianlagen (z.B. Gas- und Dampfturbinen-Kraftwerke) ueber Anlagen mit Kraft-Waerme-Kaelte-Kopplung bis hin zum Kyoto-Protokoll. Die 4. Auflage beinhaltet erstmals Uebungsaufgaben mit ausfuehrlichen Loesungen zu den einzelnen Kapiteln. Mehrere Kapitel sind aktualisiert. Das Kapitel 18 ''Liberalisierung der Energiemaerkte'' ist neu gefasst. Aus dem Inhalt Energietechnische Grundlagen - Dampfkraftwerke - Kernkraftwerke - Gasturbinen - Kombinationskraftwerke - Stationaere Kolbenmotoren - Brennstoffzellen - Kraft-Waerme-Kaelte-Kopplung - Wasserkraft - Solartechnik - Windenergie - Biomasse - Geothermie - Energetische Muellverwertung - Energieverteilung und -speicherung - Liberalisierung der Energiemaerkte - Kyoto-Protokoll. (orig.)

  14. Integral energy concepts for housing estates; Integrale Energiekonzepte fuer Wohnsiedlungen

    Energy Technology Data Exchange (ETDEWEB)

    Fisch, M.N.; Kuehl, L. [Technische Univ. Braunschweig (Germany)

    1998-06-01

    Integral energy concepts for housing estates require an early cooperation between architects, planners, and specialist engineers on the basis of a holistic planning approach. This is how future-oriented, sustainable concepts evolve which do justice to the multifarious requirements on the integral energy system of a housing estate. The present paper elucidates different approaches to optimising the energy efficiency of buildings such as the implementation of low-energy house concepts, building site and architectural planning, and detailed planning of heat insulation concepts, ventilation and air tightness concepts, and adapted heating systems. The solarisation of development plans has an influence on the arrangement of buildings, which are now planned to give the greatest possible passive and active solar energy gains. The authors also describe solar-assisted district heating systems for housing estates. [Deutsch] Integrale Energiekonzepte fuer Wohnsiedlungen erfordern die fruehe Zusammenarbeit von Architekten, Planern und Fachingenieuren im Rahmen einer ganzheitlichen Planung. So entstehen zukunftsweisende und tragfaehige Konzepte, die den vielschichtigen Anforderungen des Gesamtenergiesystems ``Wohnsiedlung`` gerecht werden. Im Folgenden wird die energetische Optimierung von Gebaeuden wie die Umsetzung von Niedrigenergiehaus-Konzepten, Standort und Gebaeudeplanung sowie Detailplanung in Bezug auf das Waermedaemmkonzept, Lueftungs-/Dichtheitskonzept und auf angepasste Waermeversorgungssysteme erl autert. Die Solarisierung von Bebauungsplaenen beeinflusste Anordnung der Gebaeude hinsichtlich der Nutzung passivsolarer Gewinne sowie des Einsatzes von Systemen der aktiven Solarenergienutzung. Solarunterstuetzte Nahwaermenetze fuer Wohnsiedlungen werden ebenfalls beschrieben.

  15. Accuracy assessment of the global TanDEM-X Digital Elevation Model with GPS data

    Science.gov (United States)

    Wessel, Birgit; Huber, Martin; Wohlfart, Christian; Marschalk, Ursula; Kosmann, Detlev; Roth, Achim

    2018-05-01

    The primary goal of the German TanDEM-X mission is the generation of a highly accurate and global Digital Elevation Model (DEM) with global accuracies of at least 10 m absolute height error (linear 90% error). The global TanDEM-X DEM acquired with single-pass SAR interferometry was finished in September 2016. This paper provides a unique accuracy assessment of the final TanDEM-X global DEM using two different GPS point reference data sets, which are distributed across all continents, to fully characterize the absolute height error. Firstly, the absolute vertical accuracy is examined by about three million globally distributed kinematic GPS (KGPS) points derived from 19 KGPS tracks covering a total length of about 66,000 km. Secondly, a comparison is performed with more than 23,000 "GPS on Bench Marks" (GPS-on-BM) points provided by the US National Geodetic Survey (NGS) scattered across 14 different land cover types of the US National Land Cover Data base (NLCD). Both GPS comparisons prove an absolute vertical mean error of TanDEM-X DEM smaller than ±0.20 m, a Root Means Square Error (RMSE) smaller than 1.4 m and an excellent absolute 90% linear height error below 2 m. The RMSE values are sensitive to land cover types. For low vegetation the RMSE is ±1.1 m, whereas it is slightly higher for developed areas (±1.4 m) and for forests (±1.8 m). This validation confirms an outstanding absolute height error at 90% confidence level of the global TanDEM-X DEM outperforming the requirement by a factor of five. Due to its extensive and globally distributed reference data sets, this study is of considerable interests for scientific and commercial applications.

  16. OPEN-SOURCE DIGITAL ELEVATION MODEL (DEMs EVALUATION WITH GPS AND LiDAR DATA

    Directory of Open Access Journals (Sweden)

    N. F. Khalid

    2016-09-01

    Full Text Available Advanced Spaceborne Thermal Emission and Reflection Radiometer-Global Digital Elevation Model (ASTER GDEM, Shuttle Radar Topography Mission (SRTM, and Global Multi-resolution Terrain Elevation Data 2010 (GMTED2010 are freely available Digital Elevation Model (DEM datasets for environmental modeling and studies. The quality of spatial resolution and vertical accuracy of the DEM data source has a great influence particularly on the accuracy specifically for inundation mapping. Most of the coastal inundation risk studies used the publicly available DEM to estimated the coastal inundation and associated damaged especially to human population based on the increment of sea level. In this study, the comparison between ground truth data from Global Positioning System (GPS observation and DEM is done to evaluate the accuracy of each DEM. The vertical accuracy of SRTM shows better result against ASTER and GMTED10 with an RMSE of 6.054 m. On top of the accuracy, the correlation of DEM is identified with the high determination of coefficient of 0.912 for SRTM. For coastal zone area, DEMs based on airborne light detection and ranging (LiDAR dataset was used as ground truth data relating to terrain height. In this case, the LiDAR DEM is compared against the new SRTM DEM after applying the scale factor. From the findings, the accuracy of the new DEM model from SRTM can be improved by applying scale factor. The result clearly shows that the value of RMSE exhibit slightly different when it reached 0.503 m. Hence, this new model is the most suitable and meets the accuracy requirement for coastal inundation risk assessment using open source data. The suitability of these datasets for further analysis on coastal management studies is vital to assess the potentially vulnerable areas caused by coastal inundation.

  17. Von der Vielfalt einer Institution

    OpenAIRE

    Kabaum, Marcel; Buck, Marc Fabian

    2013-01-01

    Von der Vielfalt von Universitäten bzw. higher education institutions (HEIs) zu sprechen heißt, sich dem Dickicht an Komplexität zu stellen, das sich zwischen ihren Ideen und Realitäten ausbreitet. Der Text führt in den Sammelband "Ideen und Realitäten von Universitäten" ein und hebt die verschiedenen disziplinären Sichtweisen sowie die internationale Breite - Deutschland, Südamerika, USA, Afghanistan und China - der Beiträge hervor. (DIPF/Orig.)

  18. Hormonally active substances in the environment: Xeno-estrogens. Opinion of an expert commission of the Toxicology Section of Deutsche Gesellschaft fuer experimentelle und klinische Pharmakologie und Toxikologie (DGPT); Hormonell aktive Substanzen in der Umwelt: Xenooestrogene. Stellungnahme der Beratungskommission der Sektion Toxikologie der Deutschen Gesellschaft fuer Experimentelle und Klinische Pharmakologie und Toxikologie (DGPT)

    Energy Technology Data Exchange (ETDEWEB)

    Degen, G.H.; Foth, H.; Kahl, R.; Kappus, H.; Neumann, H.G.; Oesch, F.; Schulte-Hermann, R. [Dortmund Univ. (Germany). Inst. fuer Arbeitsphysiologie

    1999-12-01

    Observations of disturbances in the hormonal regulation mechanisms of humans and animals raised an interest in the potential hazards of environmental pollutants with hormonal, in particular estrogenic activity. The available information on the mode of action, dose dependence and exposure pathways (exposure scenarios) suggests that the hazard to humans may be low. On the other hand, the exotoxicological effects are less easily assessible, and further investigations will be required for a well-founded risk characterisation and assessment. There are now many research programmes in this field in various countries including Germany. For example, there are projects concerning 'Environmental chemicals affecting the endocrineous system (environmental hormones)' which are funded by the German state (German Bundestag 1998) and several projects funded by the Association of the Chemical Industry and various German states. Further information on terminated and current projects is available from the Federal Environmental Office where the national activities are coordinated. [German] Beobachtungen ueber die Beeinflussung hormoneller Regulationsmechanismen bei Mensch und Tier haben die Aufmerksamkeit auf eine moegliche Gefaehrdung durch Umweltstoffe mit hormoneller, insbesondere solche mit oestrogener Aktivitaet gelenkt. Die verfuegbaren Informationen ueber Wirkungsweise, Dosisabhaengigkeit und Art der Exposition (Expositionsszenarien) lassen das Ausmass der Gefaehrdung fuer den Menschen gering erscheinen. Die oekotoxikologischen Auswirkungen sind demgegenueber weniger klar. Fuer eine fundierte Risikocharakterisierung und Risikoabschaetzung sind weitgehende Untersuchungen erforderlich. Dem tragen zahlreiche Forschungsprogramme in verschiedenen Laendern Rechnung. Auch in Deutschland wird Forschung auf diesem Gebiet unterstuetzt. Zum Beispiel: etliche Vorhaben zum Thema ''Chemikalien in der Umwelt mitWirkung auf das endokrine System (Umwelthormone

  19. Antarctic 1 km Digital Elevation Model (DEM) from Combined ERS-1 Radar and ICESat Laser Satellite Altimetry

    Data.gov (United States)

    National Aeronautics and Space Administration — This data set provides a 1 km resolution Digital Elevation Model (DEM) of Antarctica. The DEM combines measurements from the European Remote Sensing Satellite-1...

  20. Original Product Resolution (OPR) Source Digital Elevation Models (DEMs) - USGS National Map 3DEP Downloadable Data Collection

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This data collection is the Original Product Resolution (OPR) Digital Elevation Model (DEM) as provided to the USGS. This DEM is delivered in the original...

  1. Sensitivity of Particle Size in Discrete Element Method to Particle Gas Method (DEM_PGM) Coupling in Underbody Blast Simulations

    Science.gov (United States)

    2016-06-12

    Particle Size in Discrete Element Method to Particle Gas Method (DEM_PGM) Coupling in Underbody Blast Simulations Venkatesh Babu, Kumar Kulkarni, Sanjay...buried in soil viz., (1) coupled discrete element & particle gas methods (DEM-PGM) and (2) Arbitrary Lagrangian-Eulerian (ALE), are investigated. The...DEM_PGM and identify the limitations/strengths compared to the ALE method. Discrete Element Method (DEM) can model individual particle directly, and

  2. German S3 guideline for renal cell carcinoma. Presentation and discussion of essential aspects for the radiation oncologist; Die deutsche S3-Leitlinie zum Nierenzellkarzinom. Darstellung und Diskussion wesentlicher Aspekte fuer den Radioonkologen

    Energy Technology Data Exchange (ETDEWEB)

    Mueller, Arndt-Christian [Eberhard Karls University, Department of Radiation Oncology, Tuebingen (Germany); Oorschot, Birgitt van [Julius Maximilians University, Department of Radiation Oncology, Wuerzburg (Germany); Micke, Oliver [Franziskus Hospital Bielefeld, Department of Radiotherapy and Radiation Oncology, Bielefeld (Germany); Guckenberger, Matthias [University of Zurich, Department of Radiation Oncology, Zuerich (Switzerland)

    2018-01-15

    We aim to introduce and discuss the statements and recommendations of the German S3 guideline on renal cell cancer for daily practice of radiation oncologists. This report comprises indication, treatment decision, dose prescription and current literature including treatment of oligometastatic disease. According to different stages of the disease and the structure of the guideline we focus on five treatment situations and recommendations for decision making: (1) Neo-/adjuvant treatment before or after nephrectomy: No indication for radiotherapy. (2) Small renal mass: Stereotactic ablative radiotherapy is currently seen as experimental option due to small patient numbers reported in the literature. However, local tumor control achieved by SBRT appears favourable with >90% at 2 years. (3) Oligometastasis: Radiation treatment with higher local doses or stereotactic treatment is possible after interdisciplinary discussion. Indications for palliative (4) and symptomatic treatment (5) are not different compared to other tumor entities. Currently, there is no evidence-based indication for radiation treatment in the primary setting (adjuvant/neoadjuvant or definitive) of renal cell cancer. In the future stereotactic radiotherapy should have a stronger role in the treatment of medically inoperable patients with primary renal cell cancer and especially in the setting of oligometastasis. (orig.) [German] Ziel dieser Arbeit ist es, dem Radioonkologen die Empfehlungen und Diskussionswege der neuen S3-Leitlinie zum Nierenzellkarzinom fuer die taegliche Praxis pointiert darzustellen. Es werden Indikationsstellung, Dosisverschreibung, technische Durchfuehrung sowie aktuelle Literatur fuer den Strahlentherapeuten, vor allem mit Fokus auf die Behandlung der Oligometastasierung, zusammengefasst. Entsprechend der unterschiedlichen Erkrankungsstadien und der Gliederung der Leitlinie werden fuenf radiotherapeutische Therapiesituationen und die Empfehlungen dazu vorgestellt: (1

  3. Which DEM is best for analyzing fluvial landscape development in mountainous terrains?

    Science.gov (United States)

    Boulton, Sarah J.; Stokes, Martin

    2018-06-01

    Regional studies of fluvial landforms and long-term (Quaternary) landscape development in remote mountain landscapes routinely use satellite-derived DEM data sets. The SRTM and ASTER DEMs are the most commonly utilised because of their longer availability, free cost, and ease of access. However, rapid technological developments mean that newer and higher resolution DEM data sets such as ALOS World 3D (AW3D) and TanDEM-X are being released to the scientific community. Geomorphologists are thus faced with an increasingly problematic challenge of selecting an appropriate DEM for their landscape analyses. Here, we test the application of four medium resolution DEM products (30 m = SRTM, ASTER, AW3D; 12 m = TanDEM-X) for qualitative and quantitative analysis of a fluvial mountain landscape using the Dades River catchment (High Atlas Mountains, Morocco). This landscape comprises significant DEM remote sensing challenges, notably a high mountain relief, steep slopes, and a deeply incised high sinuosity drainage network with narrow canyon/gorge reaches. Our goal was to see which DEM produced the most representative best fit drainage network and meaningful quantification. To achieve this, we used ArcGIS and Stream Profiler platforms to generate catchment hillshade and slope rasters and to extract drainage network, channel long profile and channel slope, and area data. TanDEM-X produces the clearest landscape representation but with channel routing errors in localised high relief areas. Thirty-metre DEMs are smoother and less detailed, but the AW3D shows the closest fit to the real drainage network configuration. The TanDEM-X elevation values are the closest to field-derived GPS measurements. Long profiles exhibit similar shapes but with minor differences in length, elevation, and the degree of noise/smoothing, with AW3D producing the best representation. Slope-area plots display similarly positioned slope-break knickpoints with modest differences in steepness and concavity

  4. Laser mit instabilem Resonator fuer ringfoermige aktive Medien

    OpenAIRE

    Jarosch, U.K.; Habich, U.; Plum, H.D.

    1996-01-01

    Beschrieben werden Laser mit instabilen Resonatoren, die ringfoermige Medien effektiv ausnutzen, unabhaengig davon, ob es sich um feste, fluessige oder gasfoermige Medien handelt. Die Erfindung zeichnet sich dadurch aus, dass die Auskopplung des Strahles (5.1) eines Ringresonators entlang eines Spaltes oder eines Kreisringes ueber dem gesamten Umfang vorgesehen ist, wobei der Laserresonator durch Ringspiegel (1,2) mit torusfoermiger Spiegelflaeche gebildet und von den Waenden des Ringspaltes ...

  5. Agora Energiewende (2016). What do Germany's climate protection goals mean for the brown coal regions? An analysis based on the eleven key points for a coal consensus; Agora Energiewende (2016). Was bedeuten Deutschlands Klimaschutzziele fuer die Braunkohleregionen? Eine Analyse auf Basis der elf Eckpunkte fuer einen Kohlekonsens

    Energy Technology Data Exchange (ETDEWEB)

    Graichen, Patrick; Praetorius, Barbara; Rosenkranz, Gerd; Litz, Philipp

    2016-04-15

    Since Paris's historical climate agreement, it has become clear that from now on energy supply will be discussed worldwide on the premise of decarbonisation. Germany as a traditional coal country and as a land of energy transition can no longer avoid this debate. After all, the climate targets that have been adopted several times for 2030, 2040 and 2050 will ultimately mean the end of coal-fired power generation. In January 2016, Agora Energiewende presented a proposal with the eleven cornerstones for a coal consensus on how such an exit from coal-fired power generation could look like. We are concerned with a cross-party consensus that is broadly anchored in society, which gives all parties involved planning security and reliability and at the same time paves the way for a socially balanced and fairly structured transition to the new energy system. The impacts are particularly relevant for the brown coal regions concerned. In order to make the gradual phasing out of coal-fired power generation socially and economically compatible, special attention must be paid to open-cast brown coal mines and power plants as well as to regional structural change. This publication therefore takes a closer look at precisely these aspects. [German] Seit dem historischen Klimaabkommen von Paris ist klar: Die Energieversorgung wird von nun an weltweit unter der Praemisse der Dekarbonisierung diskutiert. Deutschland als traditionelles Kohleland und als Land der Energiewende kann dieser Debatte nicht laenger ausweichen. Denn die fuer 2030, 2040 und 2050 mehrfach beschlossenen Klimaziele bedeuten letztlich den Ausstieg aus der Kohleverstromung. Agora Energiewende hat im Januar 2016 mit den Elf Eckpunkten fuer einen Kohlekonsens einen Vorschlag vorgelegt, wie ein solcher Ausstieg aus der Kohleverstromung aussehen koennte. Uns geht es um einen parteiuebergreifenden, gesellschaftlich breit verankerten Konsens, der allen Beteiligten Planungssicherheit und Verlaesslichkeit gibt und

  6. Analysis the Accuracy of Digital Elevation Model (DEM) for Flood Modelling on Lowland Area

    Science.gov (United States)

    Zainol Abidin, Ku Hasna Zainurin Ku; Razi, Mohd Adib Mohammad; Bukari, Saifullizan Mohd

    2018-04-01

    Flood is one type of natural disaster that occurs almost every year in Malaysia. Commonly the lowland areas are the worst affected areas. This kind of disaster is controllable by using an accurate data for proposing any kinds of solutions. Elevation data is one of the data used to produce solutions for flooding. Currently, the research about the application of Digital Elevation Model (DEM) in hydrology was increased where this kind of model will identify the elevation for required areas. University of Tun Hussein Onn Malaysia is one of the lowland areas which facing flood problems on 2006. Therefore, this area was chosen in order to produce DEM which focussed on University Health Centre (PKU) and drainage area around Civil and Environment Faculty (FKAAS). Unmanned Aerial Vehicle used to collect aerial photos data then undergoes a process of generating DEM according to three types of accuracy and quality from Agisoft PhotoScan software. The higher the level of accuracy and quality of DEM produced, the longer time taken to generate a DEM. The reading of the errors created while producing the DEM shows almost 0.01 different. Therefore, it has been identified there are some important parameters which influenced the accuracy of DEM.

  7. Generation and performance assessment of the global TanDEM-X digital elevation model

    Science.gov (United States)

    Rizzoli, Paola; Martone, Michele; Gonzalez, Carolina; Wecklich, Christopher; Borla Tridon, Daniela; Bräutigam, Benjamin; Bachmann, Markus; Schulze, Daniel; Fritz, Thomas; Huber, Martin; Wessel, Birgit; Krieger, Gerhard; Zink, Manfred; Moreira, Alberto

    2017-10-01

    The primary objective of the TanDEM-X mission is the generation of a global, consistent, and high-resolution digital elevation model (DEM) with unprecedented global accuracy. The goal is achieved by exploiting the interferometric capabilities of the two twin SAR satellites TerraSAR-X and TanDEM-X, which fly in a close orbit formation, acting as an X-band single-pass interferometer. Between December 2010 and early 2015 all land surfaces have been acquired at least twice, difficult terrain up to seven or eight times. The acquisition strategy, data processing, and DEM calibration and mosaicking have been systematically monitored and optimized throughout the entire mission duration, in order to fulfill the specification. The processing of all data has finally been completed in September 2016 and this paper reports on the final performance of the TanDEM-X global DEM and presents the acquisition and processing strategy which allowed to obtain the final DEM quality. The results confirm the outstanding global accuracy of the delivered product, which can be now utilized for both scientific and commercial applications.

  8. Discrete element method (DEM) simulations of stratified sampling during solid dosage form manufacturing.

    Science.gov (United States)

    Hancock, Bruno C; Ketterhagen, William R

    2011-10-14

    Discrete element model (DEM) simulations of the discharge of powders from hoppers under gravity were analyzed to provide estimates of dosage form content uniformity during the manufacture of solid dosage forms (tablets and capsules). For a system that exhibits moderate segregation the effects of sample size, number, and location within the batch were determined. The various sampling approaches were compared to current best-practices for sampling described in the Product Quality Research Institute (PQRI) Blend Uniformity Working Group (BUWG) guidelines. Sampling uniformly across the discharge process gave the most accurate results with respect to identifying segregation trends. Sigmoidal sampling (as recommended in the PQRI BUWG guidelines) tended to overestimate potential segregation issues, whereas truncated sampling (common in industrial practice) tended to underestimate them. The size of the sample had a major effect on the absolute potency RSD. The number of sampling locations (10 vs. 20) had very little effect on the trends in the data, and the number of samples analyzed at each location (1 vs. 3 vs. 7) had only a small effect for the sampling conditions examined. The results of this work provide greater understanding of the effect of different sampling approaches on the measured content uniformity of real dosage forms, and can help to guide the choice of appropriate sampling protocols. Copyright © 2011 Elsevier B.V. All rights reserved.

  9. CoBra - a global tool for braking system development; CoBra - ein Tool fuer den globalen Einsatz in der Bremssystementwicklung

    Energy Technology Data Exchange (ETDEWEB)

    Sailer, U. [Robert Bosch GmbH, Stuttgart (Germany)

    1999-07-01

    When Robert Bosch GmbH took over the braking system activities of Allied Signal in 1996, they became able to develop complete braking systems for passenger cars. Braking systes for the different markets are now produced in three sites in Germany, France and the USA. Braking system development with its interfaces to component development and to car producers is a new development challenge, and the department K1 (ABS and braking systems) is cooperating with internal and external partners in developing a globally standardized program for design, simulation and analysis of passenger car braking systems. This contribution presents parts of the development project CoBra (Computation of Braking Systems). [German] Mit dem Kauf der Bremsenaktivitaeten der Firma Allied Signal im Jahre 1996 ist die Robert Bosch GmbH in der Lage, komplette Pkw-Bremssysteme zu entwickeln. Nunmehr werden an drei Entwicklungsstandorten in Deutschland, Frankreich und den USA Bremssysteme fuer die verschiedenen Maerkte entwickelt. Die Bremssystementwicklung, insbesondere die damit verbundenen Schnittstellen zu der Komponentenentwicklung und zum Automobilhersteller, stellt technisch und vom Entwicklungsprozess aus gesehen eine neue Herausforderung dar. Um ihr zu begegnen, wird im Geschaeftsbereich K1 (ABS and Braking Systems) derzeit in Zusammenarbeit mit internen und externen Partnern ein global einheitliches Programm zur Auslegung, Simulation und Analyse von Pkw-Bremssystemen entwickelt. Dieser Beitrag stellt Teile des Entwicklungsprojekts CoBra (Computation of Braking Systems) vor. (orig.)

  10. Customer relationship management and Churn Management - control elements of importance to sustainable development of business; Wechselmanagement - Stellhebel fuer die nachhaltige Geschaeftsentwicklung

    Energy Technology Data Exchange (ETDEWEB)

    Bracklow, C.; Ewerdwalbesloh, F. [TransConnect Consulting Group, Muenchen (Germany)

    2001-08-01

    Before the deregulation of the electricity market, customer support services of electricity supply companies were restricted to answering questions of consumers in connection with their electricity bills. Today, the electric utilities and electricity traders cannot do without efficient call centers and specialized back-office structures and personnel trained to manage a large scope of activities in the area of customer relationship management. CRM and Churn Management have become key functions in the electricity trading business. The article focuses on the aspects of customer data analysis and data base management, in particular transparent in-house management of information about changes in customers' conditions, requirements and supply contracts, so as to build an essential strategic source of information required for customer loyalty planning and reliable long-term development of sales volumes. (orig./CB) [German] Beschraenkte sich frueher Kundenbetreuung auf das Beantworten vereinzelter Fragen zur Verbrauchsabrechnung, so sind heute leistungsstarke Call-Center- und Back-Office-Strukturen einzurichten, die viele Themenbereiche beherrschen muessen. Dabei kommt dem Kundenwechselmanagement besondere Bedeutung zu, da sich dahinter auch strategische Stellhebel fuer die langfristige Umsatzentwicklung verbergen. (orig./CB)

  11. Numerical simulations for the area of the German Bight in spring 1995; Numerische Simulationsrechnungen fuer das Gebiet der Deutschen Bucht am Beispiel des Fruehjahrs 1995

    Energy Technology Data Exchange (ETDEWEB)

    Lenz, C.J. [Hamburg Univ. (Germany). Meteorologisches Inst.

    1998-01-01

    The paper reports results of the mesoscale transport, chemism and flow model METRAS for the period from 22 April to 11 May 1995. During this period, a measurement campaign was carried out in the area of the German Bight under the ``KUSTOS`` springtime scheme (``Coastal mass and energy transport processes - The transition from land to sea in the south-eastern North Sea``). In order to take instationary and inhomogeneous weather situations into account, the modellings used data provided by the German weather service, which form part of its Germany model (DM), both to initialize and drive the METRAS data. The modelling results of METRAS are compared with routine readings taken by the German weather service in some selected measuring sites. (orig./KW) [Deutsch] In diesem Beitrag werden Ergebnisse des mesoskaligen Transport-, Chemie- und Stroemungsmodells METRAS fuer den Zeitraum vom 22. April bis zum 11. Mai 1995 vorgestellt, in dem die Messkampagne des KUSTOS-Fruehjahrsexperimentes (Kuestennahe Stoff- und Energietransporte - der Uebergang Land - Meer in der suedoestlichen Nordsee) im Bereich der Deutschen Bucht stattfand. Zur Beruecksichtigung instationaerer und inhomogener Wetterlagen bei den Modellrechnungen wurden sowohl zur Initialisierung als auch zum Antrieb von METRAS Daten des Deutschland-Modells (DM) des Deutschen Wetterdienstes verwendet. Die Modellergebnisse von METRAS werden mit Routinemessungen des Deutschen Wetterdienstes an einigen ausgewaehlten Messstationen verglichen. (orig./KW)

  12. Declining price difference from gas to coal provides for a new situation in the electricity market; Sinkende Preisdifferenz von Gas zu Kohle sorgt fuer neue Lage am Strommarkt

    Energy Technology Data Exchange (ETDEWEB)

    Anon.

    2017-01-15

    The price difference (spread) between power coal and natural gas has increased sharply since 1999. This gap reached its peak in 2013 with 171 Euro/t SKE. In many cases, higher CO{sub 2} prices were required to promote gas use in the electricity sector. However, it has now become clear that falling gas prices lead to a growing competitiveness of natural gas. Interventions in the EU-ETS or at the national level with the aim to promote gas use in the electricity sector do not make sense and would merely reduce the competitive pressure on the gas producers and lead them to become a monopoly rents. [German] Der Preisabstand (Spread) zwischen Kraftwerkskohle und Erdgas stieg seit 1999 stark an. Dieser Gap erreichte in 2013 mit 171 Euro/t SKE seinen Hoechststand. Vielfach wurden hoehere CO{sub 2}-Preise gefordert, um den Gaseinsatz im Stromsektor zu foerdern. Doch inzwischen zeigt sich, dass fallende Gaspreise zu einer wachsenden Wettbewerbsfaehigkeit von Erdgas fuehren. Interventionen in das EU-ETS oder auf nationaler Ebene mit dem Ziel, den Gaseinsatz im Stromsektor zu foerdern, machen daher keinen Sinn und wuerden lediglich den Wettbewerbsdruck auf die Gasproduzenten mindern sowie fuer diese zu einer Monopolrente fuehren.

  13. Campaigns for renewable energy - the evaluation of 'Solar-na klar.' and a framework concept for new campaigns; Kampagnen fuer erneuerbare Energien - Die Evaluation von 'Solar-na klar.' und Empfehlungen fuer neue Kampagnen

    Energy Technology Data Exchange (ETDEWEB)

    Duscha, M.; Schuele, R.; Gross, D.; Lambrecht, K.; Lucius, W.; Johansson, J.; Rieder, S.

    2002-04-01

    , localized relevant target groups and condensed recent image studies about renewable energies in Germany. As a result, the report details the main elements and conditions that are necessary for campaigns that cover all types of renewable energies, such campaigns are supported in principal by all stakeholder groups. (orig.) [German] (a) Die Kampagne 'Solar - na klar.' unterstuetzt seit 1999 eine verstaerkte Verbreitung von solarthermischen Anlagen durch vielfaeltige Oeffentlichkeitsarbeit und Dienstleistungen. Die Evaluation der Kampagne kam bezueglich der externen Wirkungen zu ueberwiegend positiven Ergebnissen: Die zentralen Zielgruppen, Handwerker und der Ein-/Zweifamilienhausbesitzer, wurden durch die Kampagne gut erreicht und mit gutem Informationsmaterial angesprochen. Darueber hinaus schaetzte ca. ein Viertel der Haushalte, die eine solarthermische Anlage installierten, den Einfluss der Kampagne eher hoch ein. Allerdings vermissten die Haushalte zum Teil weiterfuehrende Informationen. Auch die befragten Handwerker aeusserten eine relativ grosse Zufriedenheit mit der Kampagne. Sie nutzten die bereitgestellten Informationsmaterialien der Kampagne jedoch nur sehr selten. Die Evaluation der internen Grundlagen und Prozesse fuehrt zu ambivalenten Ergebnissen: Beispielsweise ist es der Kampagne auf der einen Seite gelungen, eine breite und heterogene Traegerschaft zu gewinnen und flexibel auf aeussere Anforderungen zu reagieren. Auf der anderen Seite stellten sich Probleme in der Steuerung und im Konfliktmanagement ein. Hierzu trugen u.a. eine nicht ausreichend integrierte Projektplanung sowie strukturelle Unterschiede zwischen den Partnern bei. Die Evaluation muendet in der zentralen Empfehlung, die Kampagne in modififizierter Form fortzusetzen. Verbesserungsmoeglichkeiten sehen die Evaluatoren u.a. in der verstaerkten Einbindung regionaler Aktvitaeten. (b) Als Grundlage fuer die Empfehlungen fuer weitere Kampagnen fuer erneuerbare Energien analysierte das ifeu-Institut

  14. Eröffnung des „Hauses der Astronomie“ auf dem Königsstuhl

    OpenAIRE

    Pössel, Markus; Tschira, Klaus

    2012-01-01

    Mit dem „Haus der Astronomie“ (HdA) auf dem Königsstuhl ist ein neues Zentrum für astronomische Bildungs- und Öffentlichkeitsarbeit in Heidelberg eröffnet. Das Haus der Astronomie ist eine gemeinsame Einrichtung der Max-Planck-Gesellschaft (MPG) und der Klaus Tschira Stiftung unter Beteiligung der Stadt Heidelberg und der Ruperto Carola, deren Zentrum für Astronomie eng mit dem HdA zusammenarbeitet. Ziel des HdA ist es, astronomische Forschung einer breiten Öffentlichkeit in verständlicher Fo...

  15. Pollutant condensation as integrated environmental central technology for the air pollution control with the emphasis of recycling of raw materials into production circuit. Final report; Schadstoffkondensation als integrierte Umweltschutzmassnahme zur Luftreinhaltung mit dem Schwerpunkt der Rueckfuehrung von Rohstoffen in Produktionsablaeufe. Schlussbericht

    Energy Technology Data Exchange (ETDEWEB)

    Anlauft, H.; Krusche, J.; Ruoss, H.; Schenk, J.; Schmidt, W.; Riedel, R.; Schmalfuss, S.

    1997-01-01

    zur Zeit mit kommerzieller Kaeltetechnik bis -45 C fuer Abluftkonzentrationen groesser 10 g/m{sup 3} angeboten und eingesetzt. Um den Einsatzbereich des wirtschaftlichen Kondensationsverfahrens zu erweitern, sollten mit den Erfahrungen auf dem Gebiet der Tieftemperaturtechnik bis -80 C und mit der Konzeption der Modulbauweise flexible einsetzbare Kondensationsanlagen entwickelt werden. Die Entwicklung des Prototypen wurde begleitet von systematischen Laboruntersuchungen zu Kondensations- und Vereisungsproblemen in einem Modell-Waermetauscher. Als Grundlage fuer die Auslegung der einzelnen Module der Anlage wurde eine Loesungsmittel-Datenbank erstellt, die auch eine schnelle Beurteilung von Einsatzfaellen gestattet. Im Rahmen des Themas wurde ein Prototyp einer Schadstoffkondensationsanlage entwickelt, mit dem ein Teilluftstrom der 6-Farben-Tiefdruckmaschine in der Elbtal-Folie GmbH gereinigt werden kann. Da das Trockenrad zur Entfeuchtung des Abluftstromes entgegen den Angaben des Herstellers nicht funktionsfaehig war, wurde ein eigenes Trockenrad entwickelt. Die Loesungsmittel werden bei -80 C auskondensiert und koennen dem Produktionsprozess wieder zugefuehrt werden. Dabei kann die Moeglichkeit der fraktionierten Kondensation genutzt werden, um Loesungsmittelgemische in variabler Zusammensetzung zu entnehmen. Durch das nachgeschaltete Feinreinigungsmodul werden auch bei Loesungsmitteln mit hohem Dampfdruck die Forderungen der TA-Luft erfuellt. Mit dem Einsatz von Waermerueckgewinnungsmodulen konnte der Energieaufwand minimiert werden. Die Kosten fuer die eingesparten Loesungsmittel sind beachtlich. Mit den gesammelten Erfahrungen wurden die immateriellen Voraussetzungen fuer die Weiterentwicklung der Kondensationsanlagen zur Loesungsmittel- und Wertstoffgewinnung in flexibler Modulbauweise bis zur Serienreife bei der Nema Industrietechnik GmbH geschaffen. (orig.)

  16. DEM Simulation of Particle Stratification and Segregation in Stockpile Formation

    Directory of Open Access Journals (Sweden)

    Zhang Dizhe

    2017-01-01

    Full Text Available Granular stockpiles are commonly observed in nature and industry, and their formation has been extensively investigated experimentally and mathematically in the literature. One of the striking features affecting properties of stockpiles are the internal patterns formed by the stratification and segregation processes. In this work, we conduct a numerical study based on DEM (discrete element method model to study the influencing factors and triggering mechanisms of these two phenomena. With the use of a previously developed mixing index, the effects of parameters including size ratio, injection height and mass ratio are investigated. We found that it is a void-filling mechanism that differentiates the motions of particles with different sizes. This mechanism drives the large particles to flow over the pile surface and segregate at the pile bottom, while it also pushes small particles to fill the voids between large particles, giving rise to separate layers. Consequently, this difference in motion will result in the observed stratification and segregation phenomena.

  17. Assessment of the permeation characteristics of fibre-reinforced materials and elastomers for applications in cryotechnics and refrigeration engineering; Bestimmung der Permeationseigenschaften von Faserverbundwerkstoffen und Elastomeren fuer den Einsatz in der Kryo- und Kaeltetechnik

    Energy Technology Data Exchange (ETDEWEB)

    Waschull, Joerg; Knabe, Monika; Grimm, Ulrich; Roemer, Siegfried [Institut fuer Luft- und Kaeltetechnik GmbH, Dresden (Germany)

    2009-07-01

    For safe and environmentally acceptable operation of cryotechnical and refrigerating sytems, the permeation characteristics of the elastomers and fibre-reinforced materials must be known. While elastomers are used primarily as sealing materials of refrigeration systems, fibre-reinforced materials are used increasingly in containers for supercooled liquids like LN2, LH2, and LH3. Measuring systems and methods were developed at the Institut of Ventilation and Refrigeration Engineering at Dresden (Institut fuer Luft- und Kaeltetechnik, Dresden) that enable quantitative statements on the permeation characteristics as a function of temperature. (orig.)

  18. Parameters for viable process combinations; Randbedingungen fuer sinnvolle Verfahrenskombinationen

    Energy Technology Data Exchange (ETDEWEB)

    Lahl, U.; Zeschmar-Lahl, B. [BZL Kommunikation und Projektsteuerung GmbH, Oyten (Germany)

    1998-09-01

    The following parameters merit examination in determining the viability of process combinations: conceptual and technical soundness, environmental acceptability, energy balance, flexibility, costs, economic risk potential. The present contribution on this subject is not intended to take the place of or cover the scope of single-case studies. In practice, viability studies on process combinations have to deal with concrete plans involving precisely defined material flow balances, emissions, costs etc. The present paper therefore only presents the basic principles of this type of study. [Deutsch] Folgende Randbedingungen fuer sinnvolle Verfahrenskombinationen sind zu untersuchen: - konzeptionelle und technische Stimmigkeit, - Umweltvertraeglichkeit, - energetische Bilanz, - Flexibilitaet, - Kosten, - oekonomisches Risikopotential. Nun kann dieser Beitrag zum Thema keine Einzelfallbetrachtung ersetzen bzw. abdecken. Im Rahmen einer echten Pruefung auf `Sinnhaftigkeit` einer Kombinationsloesung stehen sich ganz konkrete Planungen gegenueber, die wiederum mit definierten Stoffflussbilanzen, Emissionen, Kosten usw. verbunden sind. Im Rahmen dieser Betrachtung koennen nur die Grundzuege einer derartigen Pruefung dargestellt werden. (orig.)

  19. Intelligent robot / manipulator systems for NDT of primary components in nuclear power plants; Intelligente Roboter / Handhabungssysteme fuer die Pruefung von Primaerkreiskomponenten in Kernkraftwerken

    Energy Technology Data Exchange (ETDEWEB)

    Dirauf, F.; Gottfried, R.; Bauer, R. [Siemens AG, KWU, Erlangen (Germany)

    1999-08-01

    The inspection robot developed by Siemens KWU for BWR reactor pressure vessel inspection has a mounting plate with exchangeable parts so as to fit into the various profiles of the vertical guiding tracks at the different pressure vessels. The robot is a versatile device also due to its variable cinematic equipment and thus can be used for any task hitherto performed by the available manipulators. For BWR pressure vessel testing, a novel, compact probe system equipped with five radiation assemblies has been combined with the ultrasonic SAPHIR probe. Until now, NDE of the RPV nozzles in BWRs has been carried out from the outside of the component. The newly developed manipulator of Siemens for inspection of the RPV nozzles can be moved to the nozzles either by manipulating arms or by a floating device, and is fixed to the nozzles by means of pneumatic suckers. Due to the modular design, probe arrays can be exchanged according to nozzle size or structural profiles to be tested. The mobile testing robot SISTAR for PWR pressure vessels consists of a floating cylinder platform that is moved under water to the target position by popellers or by ropes. It is self-adjusting for taking horizontal position and is held in position in the center of the RPV by means of a radial arrangement of legs automatically and synchronously extending from the robot. The platform can be equipped with one or two manipulator arms, depending on the testing task. (orig./CB) [Deutsch] Der von Siemens KWU neuentwickelte Pruefroboter fuer SWR-Reaktordruckbehaelter besitzt einen auswechselbaren Grundwagen, so dass er an die unterschiedlichen Profile der vertikalen Fuehrungsschienen in den einzelnen Kraftwerken angepasst werden kann. Er ist damit auch aufgrund seiner variablen Kinematik universell einsetzbar und kann saemtliche herkoemmliche Manipulatoren ersetzen. In Verbindung mit dem US-Pruefgeraet SAPHIR wurde fuer die SWR-Reaktordruckbehaelter ein neuartiges kompaktes Pruefkopfsystem mit fuenf

  20. Raw materials for the energy supply of the future. Geology, markets, environmental influences; Rohstoffe fuer die Energieversorgung der Zukunft. Geologie, Maerkte, Umwelteinfluesse

    Energy Technology Data Exchange (ETDEWEB)

    Hagelueken, Christian [Umicore, Hanau-Wolfgang (Germany); Thauer, Rudolf K. [Max-Planck-Institut fuer Terrestrische Mikrobiologie, Marburg (Germany); Buchholz, Peter [Bundesanstalt fuer Geowissenschaften und Rohstoffe, Hannover (Germany). Deutsche Rohstoffagentur; Herzig, Peter [GEOMAR Helmholtz-Zentrum fuer Ozeanforschung Kiel (Germany); Gutzmer, Jens [Technische Univ. Bergakademie Freiberg (Germany); Helmholtz-Institut Freiberg fuer Ressourcentechnologie (Germany); Littke, Ralf [Rheinisch-Westfaelische Technische Hochschule (RWTH), Aachen (Germany); Angerer, Gerhard; Wellmer, Friedrich-Wilhelm

    2015-11-15

    ;'Energiesysteme der Zukunft'' (ESYS) kommt zu dem Ergebnis, dass geologisch gesehen genuegend Rohstoffe zur Verfuegung stehen. Die Herausforderung besteht jedoch darin, die Versorgung sicher, bezahlbar sowie umwelt- und sozialvertraeglich zu gestalten. Die Analyse erlaeutert die Wirkmechanismen auf den globalen Rohstoffmaerkten und identifiziert Versorgungsrisiken. Dazu zaehlen zum Beispiel ploetzliche Nachfrageschuebe auf den internationalen Maerkten sowie die ungleiche Verteilung der Rohstoffvorkommen auf der Welt. Daran anschliessend liefert die Analyse Ansaetze, um Warnsignale fuer potenzielle Rohstoffengpaesse rechtzeitig zu erkennen, Ausweichstrategien zu entwickeln und die Rohstoffversorgung fuer die Energiewende zu sichern. So kann zum Beispiel der Ausbau des Recyclings dazu beitragen, die Abhaengigkeit von Metallimporten zu reduzieren. Im Bergbau wiederum gilt es, innovative Technologien zu entwickeln, um die Erkundung und Nutzung der Lagerstaetten zu verbessern. Durch die Festlegung verbindlicher Umwelt- und Sozialstandards koennte die Rohstoffgewinnung darueber hinaus nachhaltiger erfolgen. Die Analyse beleuchtet ausserdem die Bedeutung der Bioenergie und fossiler Rohstoffe wie Erdoel und Erdgas fuer die Energiewende. Die Autoren beschreiben, welche Vor- und Nachteile diese Energietraeger mit sich bringen und durch welche Massnahmen Umweltbelastungen wie Treibhausgasemissionen reduziert werden koennen.

  1. Gear's method with a BICG variant - solutions, algorithms, applications in temperature calculation in fire protection and thermal insulation; Das Verfahren von Gear mit BICG-Loeser - Grundlagen, Algorithmen und Anwendungen auf Temperaturberechnungen aus dem Brand- und Waermeschutz

    Energy Technology Data Exchange (ETDEWEB)

    Liebau, F. [Technische Univ. Berlin (Germany). Fachbereich 3 - Mathematik; Rudolphi, R. [Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin (Germany)

    2001-07-01

    eine iterative Methode, ersetzt die LU-Zerlegung bzw. das Loesen des aus dem Korrektor-Schritt stammenden (evtl. nichtsymmetrischen) linearen Gleichungssystems. Sind {tau} die Zeit- und h die Ortsschrittweite, so besitzt diese BICG-Variante fuer moderate Verhaeltnisse von {tau}/h{sup 2} guenstige Konvergenzeigenschaften. Weiterhin ist auch eine kurze Beschreibung des in Borland Delphi 4/Object Pascal entwickelten Programms INSTATCP enthalten. Anhand von zwei Anwendungsbeispielen aus dem Waerme- und Brandschutz (Hochlochziegel und brandbeanspruchte bekleidete Stahlstuetze) wird gezeigt, dass die Modifizierungen des Gear-Verfahrens effektiv arbeiten. (orig.)

  2. The photon tagging facility for the Crystal-Barrel/TAPS experiment at ELSA; Die Photonenmarkierungsanlage fuer das Crystal-Barrel/TAPS-Experiment an ELSA

    Energy Technology Data Exchange (ETDEWEB)

    Fornet-Ponse, Kathrin

    2009-11-15

    eines so genannten Tagging-Systems. Als wesentlicher Bestandteil dieser Arbeit wurde ein neues Tagging-System aufgebaut und in Betrieb genommen, in das Instrumente zur Praeparation und zum Nachweis von linear und zirkular polarisierten Photonen integriert sind. Das Tagging-System besteht aus einem Hodoskop mit 96 Szintillatorstreifen sowie einem Detektor mit 480 szintillierenden Fasern. Mit dieser Detektorkombination wird der Nachweis der Sekundaerelektronen aus dem Bremsstrahlungsprozess in einem Energiebereich von 0,021 . E{sub 0} bis 0,871 . E{sub 0} mit einer Zeitaufloesung von {sigma} = 0,240 ns (Szintillatorhodoskop) bzw. {sigma} = 0,560 ns (Faserdetektor) und einer Energieaufloesung von 0,1 % . E{sub 0} bis 0,4 % . E{sub 0} ermoeglicht. Die erreichte Zeitaufloesung erlaubt es, das Tagging-System als Zeitreferenz fuer die uebrigen Experimentkomponenten zu verwenden. Die Energiekalibration der Photonenmarkierungsanlage erforderte umfangreiche, dedizierte Messungen, die Teil dieser Arbeit waren und durch ausfuehrliche Simulationsrechnungen ergaenzt wurden. Die Ergebnisse der Simulationsrechnungen wurden zur Extrapolation der gemessenen Daten in den Energiebereichen verwendet, die direkten Kalibrationsmessungen nicht zugaenglich waren. Darueber hinaus konnten die Simulationsergebnisse Aufschluss ueber den Einfluss der verschiedenen Strahllageparameter des primaeren Elektronenstrahls auf die zu erreichende Energieaufloesung geben. Zur Berechnung von Wirkungsquerschnitten mit dem CBELSA/TAPS-Experiment ist die Kenntnis des Photonenflusses am Experimenttarget noetig. Bei der Bestimmung des Photonenflusses spielt die Photondefinitionswahrscheinlichkeit P{sub {gamma}} eine zentrale Rolle, die angibt, mit welcher Wahrscheinlichkeit zu einem Signal aus dem Tagging-System das zugehoerige Photon im {gamma}-Strahl am Produktionstarget vorhanden ist. Hierzu wurden mittels Monte-Carlo-Simulationen detaillierte Untersuchungen angestellt, die Aufschluss ueber die zu beachtenden

  3. 2012 Oregon Department of Geology and Mineral Industries (DOGAMI) Lidar DEM: Rogue River Oregon

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The dataset encompasses portions of Coos, Curry, Douglas, Jackson, and Josephine Counties.The bare earth digital elevation model (DEM) represents the earth's surface...

  4. Relative Error Evaluation to Typical Open Global dem Datasets in Shanxi Plateau of China

    Science.gov (United States)

    Zhao, S.; Zhang, S.; Cheng, W.

    2018-04-01

    Produced by radar data or stereo remote sensing image pairs, global DEM datasets are one of the most important types for DEM data. Relative error relates to surface quality created by DEM data, so it relates to geomorphology and hydrologic applications using DEM data. Taking Shanxi Plateau of China as the study area, this research evaluated the relative error to typical open global DEM datasets including Shuttle Radar Terrain Mission (SRTM) data with 1 arc second resolution (SRTM1), SRTM data with 3 arc second resolution (SRTM3), ASTER global DEM data in the second version (GDEM-v2) and ALOS world 3D-30m (AW3D) data. Through process and selection, more than 300,000 ICESat/GLA14 points were used as the GCP data, and the vertical error was computed and compared among four typical global DEM datasets. Then, more than 2,600,000 ICESat/GLA14 point pairs were acquired using the distance threshold between 100 m and 500 m. Meanwhile, the horizontal distance between every point pair was computed, so the relative error was achieved using slope values based on vertical error difference and the horizontal distance of the point pairs. Finally, false slope ratio (FSR) index was computed through analyzing the difference between DEM and ICESat/GLA14 values for every point pair. Both relative error and FSR index were categorically compared for the four DEM datasets under different slope classes. Research results show: Overall, AW3D has the lowest relative error values in mean error, mean absolute error, root mean square error and standard deviation error; then the SRTM1 data, its values are a little higher than AW3D data; the SRTM3 and GDEM-v2 data have the highest relative error values, and the values for the two datasets are similar. Considering different slope conditions, all the four DEM data have better performance in flat areas but worse performance in sloping regions; AW3D has the best performance in all the slope classes, a litter better than SRTM1; with slope increasing

  5. VT Lidar Hydro-flattened DEM (0.7 meter) - 2014 - Chittenden, Lamoille, Orleans, & Washington Counties

    Data.gov (United States)

    Vermont Center for Geographic Information — (Link to Metadata) This metadata applies to the following collection area(s): Eastern VT 2014 0.7m and Digital Elevation Model (DEM) dataset of the following...

  6. Evaluation of TanDEMx and SRTM DEM on watershed simulated ...

    Indian Academy of Sciences (India)

    57

    **Department of Environmental and Water Resource Engineering. School of Civil .... Few studies have investigated the impact of DEM on watershed delineation like ..... on Integrating GIS and Environmental Modelling, Santa Fe, New. Mexico.

  7. VT Lidar Hydro-flattened DEM (0.7 meter) - 2015 - Windham County

    Data.gov (United States)

    Vermont Center for Geographic Information — (Link to Metadata) This metadata applies to the following collection area(s): Windham County 2015 0.7m and Digital Elevation Model (DEM) dataset of the following...

  8. 5 Meter Alaska Digital Elevation Models (DEMs) - USGS National Map 3DEP Downloadable Data Collection

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This dataset is comprised of 5-meter ifsar-derived Digital Elevation Models (DEMs) over Alaska only. It is distributed as one-degree blocks with overedge. Horizontal...

  9. MR imaging of gastric wall layers in vitro: correlation to the histologic wall structure; Experimentelle Darstellung der Schichten der Magenwand mittels MRT: Korrelation mit dem histologischen Wandaufbau

    Energy Technology Data Exchange (ETDEWEB)

    Lubienski, A.; Grenacher, L.; Schipp, A.; Duex, M. [Radiologische Klinik, Abt. Radiodiagnostik, Ruprecht-Karls-Univ. Heidelberg (Germany); Reith, W. [Abt. fuer Neuroradiologie der Radiologischen Universitaetsklinik, Univ. Saarland (Germany); Mechtersheimer, G. [Inst. fuer Allgemeine Pathologie, Ruprecht-Karls-Univ. Heidelberg (Germany)

    2002-04-01

    vier Magenwandschichten auf den MR-Bildern voneinander differenziert werden. Der direkte Vergleich dieser Magenwandschichten mit den korrespondierenden histologischen Schnitten ergab von lumenseitig betrachtet folgende Korrelation: 1. Schicht: intermediaeres Signal - Mukosa, 2. Schicht: hypointenses Signal - Lamina muscularis mucosae, 3. Schicht: hyperintenses Signal - Submukosa, 4. Schicht: intermediaeres Signal - Muscularis propria. Schlussfolgerungen: Magnetresonanztomographisch sichtbare Magenwandschichten wurden dem anatomischen Wandaufbau des Magens mit Erfolg zugeordnet. Damit besteht erstmals die Moeglichkeit, die Tiefeninfiltration eines Magenkarzinoms mit Hilfe hochaufgeloester MR-Aufnahmen zu beurteilen. Diese Einschaetzung gilt ausdruecklich nicht fuer die Subserosa und Serosa, da ueber die Darstellbarkeit dieser sehr variablen Wandschichten durch die MRT noch keine Aussage zu treffen ist. (orig.)

  10. Glacier Volume Change Estimation Using Time Series of Improved Aster Dems

    Science.gov (United States)

    Girod, Luc; Nuth, Christopher; Kääb, Andreas

    2016-06-01

    Volume change data is critical to the understanding of glacier response to climate change. The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) system embarked on the Terra (EOS AM-1) satellite has been a unique source of systematic stereoscopic images covering the whole globe at 15m resolution and at a consistent quality for over 15 years. While satellite stereo sensors with significantly improved radiometric and spatial resolution are available to date, the potential of ASTER data lies in its long consistent time series that is unrivaled, though not fully exploited for change analysis due to lack of data accuracy and precision. Here, we developed an improved method for ASTER DEM generation and implemented it in the open source photogrammetric library and software suite MicMac. The method relies on the computation of a rational polynomial coefficients (RPC) model and the detection and correction of cross-track sensor jitter in order to compute DEMs. ASTER data are strongly affected by attitude jitter, mainly of approximately 4 km and 30 km wavelength, and improving the generation of ASTER DEMs requires removal of this effect. Our sensor modeling does not require ground control points and allows thus potentially for the automatic processing of large data volumes. As a proof of concept, we chose a set of glaciers with reference DEMs available to assess the quality of our measurements. We use time series of ASTER scenes from which we extracted DEMs with a ground sampling distance of 15m. Our method directly measures and accounts for the cross-track component of jitter so that the resulting DEMs are not contaminated by this process. Since the along-track component of jitter has the same direction as the stereo parallaxes, the two cannot be separated and the elevations extracted are thus contaminated by along-track jitter. Initial tests reveal no clear relation between the cross-track and along-track components so that the latter seems not to be

  11. GLACIER VOLUME CHANGE ESTIMATION USING TIME SERIES OF IMPROVED ASTER DEMS

    Directory of Open Access Journals (Sweden)

    L. Girod

    2016-06-01

    Full Text Available Volume change data is critical to the understanding of glacier response to climate change. The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER system embarked on the Terra (EOS AM-1 satellite has been a unique source of systematic stereoscopic images covering the whole globe at 15m resolution and at a consistent quality for over 15 years. While satellite stereo sensors with significantly improved radiometric and spatial resolution are available to date, the potential of ASTER data lies in its long consistent time series that is unrivaled, though not fully exploited for change analysis due to lack of data accuracy and precision. Here, we developed an improved method for ASTER DEM generation and implemented it in the open source photogrammetric library and software suite MicMac. The method relies on the computation of a rational polynomial coefficients (RPC model and the detection and correction of cross-track sensor jitter in order to compute DEMs. ASTER data are strongly affected by attitude jitter, mainly of approximately 4 km and 30 km wavelength, and improving the generation of ASTER DEMs requires removal of this effect. Our sensor modeling does not require ground control points and allows thus potentially for the automatic processing of large data volumes. As a proof of concept, we chose a set of glaciers with reference DEMs available to assess the quality of our measurements. We use time series of ASTER scenes from which we extracted DEMs with a ground sampling distance of 15m. Our method directly measures and accounts for the cross-track component of jitter so that the resulting DEMs are not contaminated by this process. Since the along-track component of jitter has the same direction as the stereo parallaxes, the two cannot be separated and the elevations extracted are thus contaminated by along-track jitter. Initial tests reveal no clear relation between the cross-track and along-track components so that the latter

  12. German model. Challenge on the way to the 21st century. Das Deutschland-Modell. Herausforderungen auf dem Weg ins 21. Jahrhundert

    Energy Technology Data Exchange (ETDEWEB)

    Pestel, E.; Bauerschmidt, R.; Gottwaldt, M.; Huebl, L.; Moeller, K.P.; Oest, W.; Stroebele, W.

    1980-06-01

    The German model is a consequent continuation of the work which has already lead to the Mesarovic-Pestel world-model and the 2nd report to the Club of Rome: The authors, members of the Institut fuer angewandte Systemforschung und Prognose (ISP) at Hanover, founded in 1975 by Professor Pestel, show the problems and challenges on the way to the 21st century on the basis of numerous model calculations. The German model consists of a number of coupled sub-models investigating the developments in the fields of population, education, economics, energy and labour market. Germany's role in the international network and its contribution to the North-South dialogue is taken into consideration. In the much-discussed energy sector, the calculations show that future requirements will probably be much lower than expected. Until the turn of the century, there will be no serious problems in energy and raw materials supply and consequently no structural changes.

  13. Sterblichkeit: der paradoxe Kunstgriff des Lebens - Eine Betrachtung vor dem Hintergrund der modernen Biologie

    Science.gov (United States)

    Verbeek, Bernhard

    Leben gibt es auf der Erde seit fast 4 Mio. Jahren, trotz allen Katastrophen. Die Idee des Lebens scheint unsterblich. Der Tod aber offenbar auch. Jedes Lebewesen ist davon bedroht, ja für Menschen und andere "höhere“ Lebewesen ist er im Lebensprogramm eingebaut - todsicher. Diese Tatsache ist alles andere als selbstverständlich. Ist sie überhaupt kompatibel mit dem Prinzip der Evolution, nach dem der am besten Angepasste überlebt?

  14. Uncertainty of SWAT model at different DEM resolutions in a large mountainous watershed.

    Science.gov (United States)

    Zhang, Peipei; Liu, Ruimin; Bao, Yimeng; Wang, Jiawei; Yu, Wenwen; Shen, Zhenyao

    2014-04-15

    The objective of this study was to enhance understanding of the sensitivity of the SWAT model to the resolutions of Digital Elevation Models (DEMs) based on the analysis of multiple evaluation indicators. The Xiangxi River, a large tributary of Three Gorges Reservoir in China, was selected as the study area. A range of 17 DEM spatial resolutions, from 30 to 1000 m, was examined, and the annual and monthly model outputs based on each resolution were compared. The following results were obtained: (i) sediment yield was greatly affected by DEM resolution; (ii) the prediction of dissolved oxygen load was significantly affected by DEM resolutions coarser than 500 m; (iii) Total Nitrogen (TN) load was not greatly affected by the DEM resolution; (iv) Nitrate Nitrogen (NO₃-N) and Total Phosphorus (TP) loads were slightly affected by the DEM resolution; and (v) flow and Ammonia Nitrogen (NH₄-N) load were essentially unaffected by the DEM resolution. The flow and dissolved oxygen load decreased more significantly in the dry season than in the wet and normal seasons. Excluding flow and dissolved oxygen, the uncertainties of the other Hydrology/Non-point Source (H/NPS) pollution indicators were greater in the wet season than in the dry and normal seasons. Considering the temporal distribution uncertainties, the optimal DEM resolutions for flow was 30-200 m, for sediment and TP was 30-100 m, for dissolved oxygen and NO₃-N was 30-300 m, for NH₄-N was 30 to 70 m and for TN was 30-150 m. Copyright © 2014 Elsevier Ltd. All rights reserved.

  15. An experimentally validated DEM study of powder mixing in a paddle blade mixer

    OpenAIRE

    Pantaleev, Stefan; Yordanova, Slavina; Janda, Alvaro; Marigo, Michele; Ooi, Jin

    2017-01-01

    An investigation on the predictive capabilities of Discrete Element Method simulations of a powder mixing process in a laboratory scale paddle blade mixer is presented. The visco-elasto-plastic frictional adhesive DEM contactmodel of Thakur et al. (2014) was used to represent the cohesive behaviour of an aluminosilicate powder in which the model parameters were determined using experimental flow energy measurements from the FT4powder rheometer. DEM simulations of the mixing process using the ...

  16. An Investigation into Solution Verification for CFD-DEM

    Energy Technology Data Exchange (ETDEWEB)

    Fullmer, William D. [National Energy Technology Lab. (NETL), AECOM, Morgantown, WV (United States); Musser, Jordan [National Energy Technology Lab. (NETL), Morgantown, WV (United States)

    2017-10-01

    This report presents the study of the convergence behavior of the computational fluid dynamicsdiscrete element method (CFD-DEM) method, specifically National Energy Technology Laboratory’s (NETL) open source MFiX code (MFiX-DEM) with a diffusion based particle-tocontinuum filtering scheme. In particular, this study focused on determining if the numerical method had a solution in the high-resolution limit where the grid size is smaller than the particle size. To address this uncertainty, fixed particle beds of two primary configurations were studied: i) fictitious beds where the particles are seeded with a random particle generator, and ii) instantaneous snapshots from a transient simulation of an experimentally relevant problem. Both problems considered a uniform inlet boundary and a pressure outflow. The CFD grid was refined from a few particle diameters down to 1/6th of a particle diameter. The pressure drop between two vertical elevations, averaged across the bed cross-section was considered as the system response quantity of interest. A least-squares regression method was used to extrapolate the grid-dependent results to an approximate “grid-free” solution in the limit of infinite resolution. The results show that the diffusion based scheme does yield a converging solution. However, the convergence is more complicated than encountered in simpler, single-phase flow problems showing strong oscillations and, at times, oscillations superimposed on top of globally non-monotonic behavior. The challenging convergence behavior highlights the importance of using at least four grid resolutions in solution verification problems so that (over-determined) regression-based extrapolation methods may be applied to approximate the grid-free solution. The grid-free solution is very important in solution verification and VVUQ exercise in general as the difference between it and the reference solution largely determines the numerical uncertainty. By testing

  17. ASTER Global DEM contribution to GEOSS demonstrates open data sharing

    Science.gov (United States)

    Sohre, T.; Duda, K. A.; Meyer, D. J.; Behnke, J.; Nasa Esdis Lp Daac

    2010-12-01

    across all the GEOSS Societal Benefit areas was shown. The release of the global tiled research-grade DEM resulted in a significant increase in demand for ASTER elevation models, and increased awareness of related products. No cost access to these data has also promoted new applications of remotely sensed data, increasing their use across the full range of the GEOSS societal benefit areas. In addition, the simplified data access and greatly expanded pool of users resulted in a number of suggestions from researchers in many disciplines for possible enhancements to future versions of the ASTER GDEM. The broad distribution of the product can be directly attributed to the adoption of fundamental GEOSS data sharing principles, which are directed toward expanded access by minimizing time delay and cost, thus facilitating data use for education, research, and a range of other applications. The ASTER GDEM demonstrated the need and user demand for an improved global DEM product as well as the added benefit of not only “full and open” distribution, but “free and open” distribution.

  18. DEM simulation of granular flows in a centrifugal acceleration field

    Science.gov (United States)

    Cabrera, Miguel Angel; Peng, Chong; Wu, Wei

    2017-04-01

    The main purpose of mass-flow experimental models is abstracting distinctive features of natural granular flows, and allow its systematic study in the laboratory. In this process, particle size, space, time, and stress scales must be considered for the proper representation of specific phenomena [5]. One of the most challenging tasks in small scale models, is matching the range of stresses and strains among the particle and fluid media observed in a field event. Centrifuge modelling offers an alternative to upscale all gravity-driven processes, and it has been recently employed in the simulation of granular flows [1, 2, 3, 6, 7]. Centrifuge scaling principles are presented in Ref. [4], collecting a wide spectrum of static and dynamic models. However, for the case of kinematic processes, the non-uniformity of the centrifugal acceleration field plays a major role (i.e., Coriolis and inertial effects). In this work, we discuss a general formulation for the centrifugal acceleration field, implemented in a discrete element model framework (DEM), and validated with centrifuge experimental results. Conventional DEM simulations relate the volumetric forces as a function of the gravitational force Gp = mpg. However, in the local coordinate system of a rotating centrifuge model, the cylindrical centrifugal acceleration field needs to be included. In this rotating system, the centrifugal acceleration of a particle depends on the rotating speed of the centrifuge, as well as the position and speed of the particle in the rotating model. Therefore, we obtain the formulation of centrifugal acceleration field by coordinate transformation. The numerical model is validated with a series of centrifuge experiments of monodispersed glass beads, flowing down an inclined plane at different acceleration levels and slope angles. Further discussion leads to the numerical parameterization necessary for simulating equivalent granular flows under an augmented acceleration field. The premise of

  19. Modelling of Singapore's topographic transformation based on DEMs

    Science.gov (United States)

    Wang, Tao; Belle, Iris; Hassler, Uta

    2015-02-01

    Singapore's topography has been heavily transformed by industrialization and urbanization processes. To investigate topographic changes and evaluate soil mass flows, historical topographic maps of 1924 and 2012 were employed, and basic topographic features were vectorized. Digital elevation models (DEMs) for the two years were reconstructed based on vector features. Corresponding slope maps, a surface difference map and a scatter plot of elevation changes were generated and used to quantify and categorize the nature of the topographic transformation. The surface difference map is aggregated into five main categories of changes: (1) areas without significant height changes, (2) lowered-down areas where hill ranges were cut down, (3) raised-up areas where valleys and swamps were filled in, (4) reclaimed areas from the sea, and (5) new water-covered areas. Considering spatial proximity and configurations of different types of changes, topographic transformation can be differentiated as either creating inland flat areas or reclaiming new land from the sea. Typical topographic changes are discussed in the context of Singapore's urbanization processes. The two slope maps and elevation histograms show that generally, the topographic surface of Singapore has become flatter and lower since 1924. More than 89% of height changes have happened within a range of 20 m and 95% have been below 40 m. Because of differences in land surveying and map drawing methods, uncertainties and inaccuracies inherent in the 1924 topographic maps are discussed in detail. In this work, a modified version of a traditional scatter plot is used to present height transformation patterns intuitively. This method of deriving categorical maps of topographical changes from a surface difference map can be used in similar studies to qualitatively interpret transformation. Slope maps and histograms were also used jointly to reveal additional patterns of topographic change.

  20. COMPARISON AND CO-REGISTRATION OF DEMS GENERATED FROM HiRISE AND CTX IMAGES

    Directory of Open Access Journals (Sweden)

    Y. Wang

    2016-06-01

    Full Text Available Images from two sensors, the High-Resolution Imaging Science Experiment (HiRISE and the Context Camera (CTX, both on-board the Mars Reconnaissance Orbiter (MRO, were used to generate high-quality DEMs (Digital Elevation Models of the Martian surface. However, there were discrepancies between the DEMs generated from the images acquired by these two sensors due to various reasons, such as variations in boresight alignment between the two sensors during the flight in the complex environment. This paper presents a systematic investigation of the discrepancies between the DEMs generated from the HiRISE and CTX images. A combined adjustment algorithm is presented for the co-registration of HiRISE and CTX DEMs. Experimental analysis was carried out using the HiRISE and CTX images collected at the Mars Rover landing site and several other typical regions. The results indicated that there were systematic offsets between the HiRISE and CTX DEMs in the longitude and latitude directions. However, the offset in the altitude was less obvious. After combined adjustment, the offsets were eliminated and the HiRISE and CTX DEMs were co-registered to each other. The presented research is of significance for the synergistic use of HiRISE and CTX images for precision Mars topographic mapping.

  1. TanDEM-X the Earth surface observation project from space level - basis and mission status

    Directory of Open Access Journals (Sweden)

    Jerzy Wiśniowski

    2015-03-01

    Full Text Available TanDEM-X is DLR (Deutsches Zentrum für Luft- und Raumfahrt the Earth surface observation project using high-resolution SAR interferometry. It opens a new era in space borne radar remote sensing. The system is based on two satellites: TerraSAR-X (TSX and TanDEM-X (TDX flying on the very close, strictly controlled orbits. This paper gives an overview of the radar technology and overview of the TanDEM-X mission concept which is based on several innovative technologies. The primary objective of the mission is to deliver a global digital elevation model (DEM with an unprecedented accuracy, which is equal to or surpass the HRTI-3 specifications (12 m posting, relative height accuracy ±2 m for slope < 20% and ±4 m for slope > 20% [8]. Beyond that, TanDEM-X provides a highly reconfigurable platform for the demonstration of new radar imaging techniques and applications.[b]Keywords[/b]: remote sensing, Bistatic SAR, digital elevation model (DEM, Helix formation, SAR interferomery, HRTI-3, synchronization

  2. Non-destructive testing of concrete structures with the impact-echo method; Zerstoerungsfreie Pruefung von Betonbauteilen mit dem Impact-Echo-Verfahren

    Energy Technology Data Exchange (ETDEWEB)

    Algernon, Daniel; Feistkorn, Sascha; Scherrer, Michael [SVTI Schweizerischer Verein fuer technische Inspektionen, Wallisellen (Switzerland). Nuklearinspektorat

    2016-05-01

    The impact-echo method is based on the use of elastic waves. It was developed in the 1980 for the testing of concrete structures and is currently widespread. Main application areas are the component and coating thickness measurement and detection of delaminations, voids and other defects. Specifically, the method is also used to check the injection faults of clamping channels. Another application is the determination of mechanical material parameters such as the modulus of elasticity. Since the original development of the method has undergone several enhancements. The conversion of a single-point measurement method towards a area component testing, the use by the optimized measurement data acquisition and evaluation enlarged and delivered an important prerequisite for increasing the efficiency. The use of air-coupled sensors not only increases the measurement speed but also provides advantages in rough component surfaces. The imaging analysis in conjunction with signal processing algorithms simplifies the interpretation and allows statistical evaluation. [German] Das Impact-Echo-Verfahren beruht auf der Nutzung elastischer Wellen. Es wurde in den 1980er Jahren fuer die Pruefung von Stahlbetonbauteilen entwickelt und ist derzeit weit verbreitet. Haupteinsatzgebiete sind die Bauteil- und Schichtdickenmessung sowie die Detektion von Delaminationen, Hohl- und anderen Fehlstellen. Insbesondere wird das Verfahren auch zur Pruefung des Verpresszustandes von Spannkanaelen herangezogen. Eine weitere Anwendung ist die Bestimmung mechanischer Materialparameter wie dem Elastizitaetsmodul. Seit der urspruenglichen Entwicklung hat das Verfahren verschiedene Weiterentwicklungen erfahren. Die Ueberfuehrung von einem Einzelpunktmessverfahren hin zu einer flaechigen Bauteilpruefung hat die Einsatzmoeglichkeiten durch die optimierte Messdatenaufnahme und -auswertung vergroessert und eine wichtige Voraussetzung zur Erhoehung der Leistungsfaehigkeit geliefert. Der Einsatz

  3. 80 K - Helium circuit with innovative, gas-bearing, oil-free turbo compressor. Conception, realization, commissioning and test of the 80 K refrigeration supply for the superconducting electron source at HZB; 80 K - Helium-Kreis mit innovativem, gasgelagertem, oelfreiem Turbokompressor. Konzeption, Realisierung, Inbetriebnahme und Test der 80 K-Kaelteversorgung fuer die supraleitenden Elektronenquelle am HZB

    Energy Technology Data Exchange (ETDEWEB)

    Gloeckner, Felix [Helmholtz-Zentrum Berlin fuer Materialien und Energie GmbH, Berlin (Germany)

    2017-07-01

    Turbokompressor von der Fischer Engineering AG fuer die Anwendung mit Helium angepasst. Das Paper schliesst mit dem Test der Anlage und einem Einblick auf die aktuellen Betriebserfahrungen, sowie einem Ausblick auf das naechste, groessere Version fuer bERLinPro.

  4. The Rossendorf research site. The Rossendorf Research Center (FZR). The Rossendorf Verein fuer Kernverfahrenstechnik und Analytik (VKTA). The Rossendorf Foerderverein fuer Wissenschaft, Forschung und Technologie (ROTECH)

    International Nuclear Information System (INIS)

    1995-01-01

    The illustrated brochure presents the Rossendorf research site at a glance. There are two major new establishments, the Rossendorf Research Center and the Verein fuer Kernverfahrenstechnik und Analytik Rossendorf (VKTA), whose main activities cover basic research and tasks in the field of nuclear facilities decommissioning and radwaste management on site. (DG) [de

  5. Steam supply for the Principality of Liechtenstein. Process heat for industrial applications; Dampflieferung fuer das Fuerstentum Liechtenstein. Prozesswaerme fuer die Industrie

    Energy Technology Data Exchange (ETDEWEB)

    Dokter, Ernst [VfA Buchs fuer Kraft-Waerme-Kopplung und das Ferndampfsystem, Buchs (Switzerland)

    2009-07-15

    Switzerland is leading the world in thermal waste management. There are 29 incinerators (KVA - Kehrichtverbrennungsanlagen) with a capacity of 3.7 million t.p.a. They are operated by industrial or municipal owners and by the Verein fuer Abfallentsorgung Buchs SG. (orig.)

  6. Gesellschaft fuer Anlagen- und Reaktorsicherheit (GRS). Annual report 2013/14; Gesellschaft fuer Anlagen- und Reaktorsicherheit (GRS). Jahresbericht 2013/14

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2016-02-15

    The annual report 2013/14 of the Gesellschaft fuer Anlagen- und Reaktorsicherheit (GRS) includes projects and key activities on the following issues: reactor safety, waste disposal, radiation protection, environmental protection and the support of foreign authorities and TSO. The project executing organizations, the governmental funding, share holding and subsidiaries are summarized.

  7. Driver assistant system for industrial vehicles; Fahrerassistenzsysteme fuer Nutzfahrzeuge

    Energy Technology Data Exchange (ETDEWEB)

    Winterhagen, J.

    1999-10-01

    It is the intention of DaimlerChrysler AG to automatize future industrial vehicles by means of driver assistant systems. The components - from automatic distance control to fully electric steering - are in different stages of maturity. Some prototypes were presented recently at the Papenburg test site. [German] Fahrerassistenzsysteme werden das Nutzfahrzeug der Zukunft nach Vorstellungen der DaimlerChrysler AG weitestgehend automatisieren. Die dazu notwendigen Techniken - vom automatischen Abstandsregler bis zur vollelektrischen Lenkung - haben unterschiedliche Reifegrade. Einige Prototypen stellte das Unternehmen kuerzlich auf dem Pruefgelaende Papenburg vor. (orig.)

  8. Research and development activities of the Institut fuer Nukleare Entsorgungstechnik on the decontamination of surfaces

    International Nuclear Information System (INIS)

    Dippel, T.; Hentschel, D.; Kunze, S.

    1983-06-01

    After developing a procedure for the ''Testing of Surface Coating Materials for the Decontamination'' about 900 different surface coating materials had been tested and evaluated for the domestic and foreign industry. The results prove the following basic facts: Surface coatings, low in porosity, forming a smooth surface and containing limited amounts of filler are in the majority very effectively decontaminated if they are prepared of chemically stable, water repellent materials; Decontamination results are drastically poorer if the degree of filling of the materials is high especially if hygroscopic fillers and/or hygroscopic colouring matters are used. Currently available cleansers and washing powders used for decontamination did not fulfill the three basic demands for a decontamination agent: high efficiency, small foam generation and sufficient thermal stability. Therefore for the decontamination of walls, floors, etc. a water delutable, liquid cleanser was developed. In the same context a washing powder was optimized for the decontamination of contaminated clothing. The experiments on the decontamination of stainless steels ended up with the formulation of a pickling paste. Furthermore all investigations were aimed at a minimization of the waste generation by the decontamination process. This resulted in decontamination techniques, in which the decontaminating agents were applied in thin layers. A comparison of the currently practiced dipping technique with the coating technique showed that the latter one gave the better decontamination results and that the amount of decontamination waste was reduced. (orig./HP) [de

  9. Brief description of the programmes of the Institut fuer Reaktordynamik und Anlagensicherheit (IRA)

    International Nuclear Information System (INIS)

    1977-01-01

    All programmes used by the IRA are presented, giving name and abbreviation, field of application, purpose and solution method, requirements made on the computer, necessary auxiliary programmes, and machine time for typical examples. (RW) [de

  10. Forschungszentrum Juelich GmbH, Institut fuer Kernphysik. Annual report 1991

    International Nuclear Information System (INIS)

    1992-03-01

    During the year 1991 the work concentrated on building the Cooler Synchrotron COSY-Juelich. The experimental activity was accompanied by theoretical studies in the field of medium energy nuclear physics. The preparation of COSY experiments concerned the realization of multipurpose facilities and other experiments. Work going on in the field of theoretical nuclear physics was strongly connected with research projects at COSY and processes induced in the proton-antiproton interaction. Through nuclear spectroscopy two-phonon octupole excitation had been identified in Gd-148. The ISIS ECR source has been used for the production of ion beams for atomic physics research. (DG)

  11. Energy conservation from a consumer perspective. Institut fuer marketing der Universitaet Muenster, Arbeitspapiere

    Energy Technology Data Exchange (ETDEWEB)

    Katz, R

    1980-01-01

    A survey of the standard of energy research in the American Literature on consumer behaviour is given. After the discussion of the importance of consumer research for energy conservation the difficulties on determining ''energy conservation behaviour'' are described. Moreover, the study compiles past American Literature that has tried to explain energy conservation behaviour. A further chapter analyzes measures of influencing the consumer energy conservation behaviour carried out so far in the United States and Canada. Finally, still open problems in future American energy conservation research in the field of consumer behaviour are demonstrated.

  12. Progress report on research and development activities in 1982 of the Institut fuer Reaktorbauelemente

    International Nuclear Information System (INIS)

    1983-02-01

    In 1982 problems of the following subjects have been dealt with: - Thermohydraulic behaviour of core melts and pebble beds. - Fuel rod behaviour and effects of cooling channel blocking during loss-of-coolant incidents. - Hydraulics of pulsed screen bottom columns. - Evidence of incidents on the sodium-cooled fast breeder reactor. - Leakage-before-rupture behaviour of pipe lines. - Two-phase mass flow measuring methods. - Investigations on heat removal and stability of steel structures in the reactor vessel. - Thermo- and fluid dynamics of core elements with regular and irregular geometry. - Core emergency cooling for advanced pressurized water reactors. - Reliability of component parts in machine construction. - Investigations on fusion reactor components. - Fundamental investigations on natural convection. (orig./GL) [de

  13. Report on research and development activities 1980 of the Institut fuer Reaktorbauelemente

    International Nuclear Information System (INIS)

    1981-02-01

    In 1980 the IRB-staff has worked on the following problems: fuel rod behaviour loss of coolant incidents, heat transfer processes and mechanisms of flow in one-channel- and multi-channel-geometries under regular and disturbed geometrical conditions, measuring systems of two-phase mass flow, hydraulic pulsated perforated bottom columns, thermal hydraulic behaviour of core melt down and particle charges, evidence of incidents at sodium cooled fast breeders, behaviour as to friction, abrasion and welding of reactor specific material influenced by coolant media, fuel element design, emergency cooling of core at advanced pressurized reactors, liquid metal target for the spallation neutron source, behaviour in failure of pressure vessels and pressure tubes, basic examinations on natural convection. (orig./GL) [de

  14. The Fringe Reading Facility at the Max-Planck-Institut fuer Stroemungsforschung

    Science.gov (United States)

    Becker, F.; Meier, G. E. A.; Wegner, H.; Timm, R.; Wenskus, R.

    1987-01-01

    A Mach-Zehnder interferometer is used for optical flow measurements in a transonic wind tunnel. Holographic interferograms are reconstructed by illumination with a He-Ne-laser and viewed by a video camera through wide angle optics. This setup was used for investigating industrial double exposure holograms of truck tires in order to develop methods of automatic recognition of certain manufacturing faults. Automatic input is achieved by a transient recorder digitizing the output of a TV camera and transferring the digitized data to a PDP11-34. Interest centered around sequences of interferograms showing the interaction of vortices with a profile and subsequent emission of sound generated by this process. The objective is the extraction of quantitative data which relates to the emission of noise.

  15. Annual report for 1980 of the Max-Planck-Institut fuer Plasmaphysik

    International Nuclear Information System (INIS)

    1980-01-01

    The scientific departments of IPP Garching give a review of their R + D activities in 1980. Other subjects discussed are the work of the central technical services, the organisational structure, the managing directors, administration, general services, and public relations. Publications and conference reports are listed, and projects carried out by the Universities of Stuttgart, Munich, and Frankfurt/Main on behalf of IPP are described. (GG)

  16. The Fringe Reading Facility at the Max-Planck-Institut fuer Stroemungsforschung

    Science.gov (United States)

    Becker, F.; Meier, G. E. A.; Wegner, H.; Timm, R.; Wenskus, R.

    1987-05-01

    A Mach-Zehnder interferometer is used for optical flow measurements in a transonic wind tunnel. Holographic interferograms are reconstructed by illumination with a He-Ne-laser and viewed by a video camera through wide angle optics. This setup was used for investigating industrial double exposure holograms of truck tires in order to develop methods of automatic recognition of certain manufacturing faults. Automatic input is achieved by a transient recorder digitizing the output of a TV camera and transferring the digitized data to a PDP11-34. Interest centered around sequences of interferograms showing the interaction of vortices with a profile and subsequent emission of sound generated by this process. The objective is the extraction of quantitative data which relates to the emission of noise.

  17. Research and development activities 1984 of KFK Institut fuer Genetik und Toxikologie von Spaltstoffen

    International Nuclear Information System (INIS)

    1985-02-01

    The annual report describes the R+D activities in 1984. Most of the projects were long-term research projects in the fields of gene repair and regulation, biological carcinogenesis, radiation toxicology of actinides, biochemistry of actinides and other heavy metals, biophysic aspects of organometallic compounds, and biochemical fundamentals of gene repair. A new research project is entitled 'Molecular genetics of eukaryontic genes'. (MG) [de

  18. Fraunhofer Institut fuer Molekularbiologie und Angewandte Oekologie (IME). Annual report 2015

    International Nuclear Information System (INIS)

    2016-03-01

    For the Fraunhofer IME, 2015 was an outstanding year, including a record-breaking operating budget of around 33.9 million euro, of which an astounding 97.1% was from third party revenues. Business contracts accounted for around 47% of our turnover, which is also an extraordinary achievement. Our research scientists won awards for excellent results in 2015. For example, one Joseph von Fraunhofer Prize 2015 went to a team of researchers from Continental Tires Germany GmbH, Fraunhofer IME and the University of Muenster, developing natural rubber from dandelions as a sustainable raw material for the rubber processing industry. This project is an excellent embodiment of the ideals of the Fraunhofer-Gesellschaft and our working approach, our aim being to perform top-level scientific research, to think in terms of ecological and economic sustainability, and to develop original solutions to key challenges. In collaboration with industrial partners, these solutions bring specific products onto the market that strengthen Welcome Germany's standing as a research and business location as well as benefiting society. By developing research activities combining different core competencies, and by integrating perspectives from diverse fields of operation, we can enhance the value of our scientific and regulatory services. The contribution of our research scientists to the drawing up of guidelines and guidance documents is valued on a national and international level. In setting up the new business field 'Sustainable Agricultural Production of Substances', we have linked our competencies in analytics, soil science, active substance research and testing, as well as secondary raw materials and feedstuffs, with the know-how of external partners in plant cultivation and geographical information systems.

  19. Fibre-reinforced ceramics for vehicle brakes; Faserverstaerkte Keramiken fuer Bremsenanwendungen

    Energy Technology Data Exchange (ETDEWEB)

    Krenkel, W. [DLR Deutsches Zentrum fuer Luft- und Raumfahrt e.V., Stuttgart (Germany). Inst. fuer Bauweisen- und Konstruktionsforschung

    2000-08-01

    Fibre-reinforced ceramics are extremely light, with a high fracture toughness, and have a high potential for applications in motor brakes. It is envisaged that they will last through the whole vehicle life. They can be used in passenger cars, industrial vehicles, high-speed trains, aircraft and in safety brakes in machines, plants and haulage systems. [German] Im Rahmen der Raumfahrt-Forschung wurde vom Deutschen Zentrum fuer Luft- und Raumfahrt (DLR) das Fluessigsilicier-Verfahren zur Herstellung von keramischen Verbundwerkstoffen entwickelt. Diese extrem leichten und bruchzaehen Faserkeramiken haben sich unter den besonderen Bedingungen des Weltraums beispielsweise fuer Hitzeschutzstrukturen von Raumfahrzeugen hervorragend bewaehrt. Darueber hinaus zeigten Untersuchungen ein hohes Anwendungspotenzial fuer neue Bremsen mit deutlich verbesserten Reibungs- und Verschleisseigenschaften. Weiterentwicklungen des keramischen Gefueges fuehrten zu innovativen Leichtbau- bzw. Hochleistungs-Bremsen auf der Basis dieser harten und hitzebestaendigen Verbundwerkstoffe. Bereits mit serienmaessigen Bremsbelaegen wurden die heute geltenden Verschleiss- und Reibwertanforderungen teilweise weit uebertroffen. Die Leistungsfaehigkeit heutiger Bremssysteme kann damit deutlich gesteigert und die ungefederte Masse des Fahrwerks drastisch reduziert werden. Mit der zielgerichteten Anpassung geeigneter Belaege auf die neuen Keramik-Bremsscheiben scheint erstmals ein Einsatz von Lebensdauerbremsen moeglich zu sein, deren geringe Verschleissraten einen Austausch der Bremsscheiben waehrend der Betriebszeit eines Fahrzeugs ueberfluessig machen. Neben der Verwendung dieser innovativen Leichtbaubremsen im PKW-Bereich wird zukuenftig deren Einsatz auch fuer Gefahrguttransporter, Hochgeschwindigkeitszuege, Flugzeuge und fuer Sicherheitsbremsen im Maschinen- und Anlagenbau sowie in der Foerdertechnik erwartet. (orig.)

  20. Market monitoring. Globalization of professional education for engineers. Chances and market potentials of German sellers; Marktsondierung. Internationalisierung beruflicher Weiterbildung fuer Ingenieure. Chancen und Marktpotenziale deutscher Anbieter

    Energy Technology Data Exchange (ETDEWEB)

    Luther, W.; Baron, W.; Zweck, A.

    2002-09-01

    A market monitoring study was carried to determine which countries and which business fields offer opportunities for developing promising activities. The results of the market monitoring study, which was carried out by the VDI Technology Centre, will also be made available to other interested training institutions with a view to promoting the globalisation of professional education for engineers. The following countries were included in the study: USA, Belgium, France, Great Britain, Ireland, the Netherlands, Sweden, and Spain. The study focused chiefly on technically specialised staff and executives. As regards products and services the main focus is on training events with a short runtime and areas where there is a strong interest in the globalisation of training providers. [German] Mittels einer Marktsondierung wurde untersucht, in welchen Laendern und in welchen Geschaeftsfeldern aussichtsreiche Aktivitaeten entfaltet werden koennen. Die Ergebnisse dieser Marktuntersuchung des VDI-Technologiezentrums werden auch weiteren interessierten Weiterbildungseinrichtungen zur Verfuegung gestellt, um auf diese Weise einen Beitrag zur staerkeren Internationalisierung beruflicher Weiterbildung fuer Ingenieure zu leisten. Die Studie analysiert folgende Ziellaender: USA, Belgien, Frankreich, Grossbritannien, Irland, Niederlande, Schweden und Spanien. Als Zielgruppe werden technische Fach- und Fuehrungskraefte fokussiert. Als moegliche Produkte und Dienstleistungen stehen Veranstaltungen mit relativ kurzer Laufzeit und Handlungsfelder im Vordergrund, die fuer eine Internationalisierung der Weiterbildungsanbieter von besonderem Interesse sind. (orig.)

  1. Engineering Institute

    Science.gov (United States)

    Projects Past Projects Publications NSEC » Engineering Institute Engineering Institute Multidisciplinary engineering research that integrates advanced modeling and simulations, novel sensing systems and new home of Engineering Institute Contact Institute Director Charles Farrar (505) 665-0860 Email UCSD EI

  2. Fibre-reinforced ceramics for vehicle brakes; Faserverstaerkte Keramiken fuer Bremsenanwendungen

    Energy Technology Data Exchange (ETDEWEB)

    Krenkel, W. [DLR Deutsches Zentrum fuer Luft- und Raumfahrt e.V., Stuttgart (Germany). Inst. fuer Bauweisen- und Konstruktionsforschung

    2000-07-01

    In the context of their aerospace research activities, DLR (Deutsches Zentrum fuer Luft- und Raumfahrt) developed a new process for producing ceramic fibre composite materials that are extremely light and tough. Apart from their applications in aerospace engineering, they have great potential for motor brakes with improved friction and wear characteristics. Excellent results were achieved with the new materials even with conventional brake liners. With customised liners, brake life may be prolonged to match the car life. Further applications are expected in trucks for transport in hazardous materials, high-speed trains, aircraft, industrial machinery and plants, and conveyor systems. [German] Im Rahmen der Raumfahrt-Forschung wurde vom Deutschen Zentrum fuer Luft- und Raumfahrt (DLR) das Fluessigsilicier-Verfahren zur Herstellung von keramischen Verbundwerkstoffen entwickelt. Diese extrem leichten und bruchzaehen Faserkeramiken haben sich unter den besonderen Bedingungen des Weltraums beispielsweise fuer Hitzeschutzstrukturen von Raumfahrzeugen hervorragend bewaehrt. Darueber hinaus zeigten Untersuchungen ein hohes Anwendungspotenzial fuer neue Bremsen mit deutlich verbesserten Reibungs- und Verschleisseigenschaften. Weiterentwicklungen des keramischen Gefueges fuehrten zu innovativen Leichtbau- bzw. Hochleistungs-Bremsen auf der Basis dieser harten und hitzebestaendigen Verbundwerkstoffe. Bereits mit serienmaessigen Bremsbelaegen wurden die heute geltenden Verschleiss- und Reibwertanforderungen teilweise weit uebertroffen. Die Leistungsfaehigkeit heutiger Bremssysteme kann damit deutlich gesteigert und die ungefederte Masse des Fahrwerks drastisch reduziert werden. Mit der zielgerichteten Anpassung geeigneter Belaege auf die neuen Keramik-Bremsscheiben scheint erstmals ein Einsatz von Lebensdauerbremsen moeglich zu sein, deren geringe Verschleissraten einen Austausch der Bremsscheiben waehrend der Betriebszeit eines Fahrzeugs ueberfluessig machen. Neben der

  3. Arbeitsgemeinschaft fuer die Reinhaltung der Elbe - multi-element analysis of water samples from the Elbe and selected tributaries; Arbeitsgemeinschaft fuer die Reinhaltung der Elbe - Multielementanalysen von Wasserproben der Elbe und ausgewaehlter Nebenfluesse. Laengsprofilbeprobung vom September 1997

    Energy Technology Data Exchange (ETDEWEB)

    Krueger, F.; Berger, H. [Umweltbehoerde Hamburg (Germany). Amt fuer Umweltschutz, Umweltuntersuchungen; Aulinger, A.; Stachel, B.; Reincke, H. [Wasserguetestelle Elbe, Hamburg (Germany)

    2000-10-01

    die Daten erhoben, schliesst sich die Frage nach ihrer Bewertung an. Welche Schemata sind tauglich, um eine Vielzahl von Elementen, die in den unterschiedlichen Kompartimenten Schwebstoff und Wasser bestimmt werden, einstufen zu koennen? Welche Elemente sind als anthropogen beeinflusst zu bezeichnen, welche Konzentrationen stellen den background in dem betrachteten Flusssystem vor? Zur Beantwortung dieser Fragen wird sich der Statistik bedient, denn mit ihrer Hilfe koennen Elementmuster identifiziert, Belastungsquellen aufgezeigt und darueber hinaus die Auswahl von Messstellen fuer kuenftige Untersuchungen optimiert werden. (orig.)

  4. Acute environmental toxicity and persistence of DEM, a chemical agent simulant: Diethyl malonate. [Diethyl malonate

    Energy Technology Data Exchange (ETDEWEB)

    Cataldo, D.A.; Ligotke, M.W.; Harvey, S.D.; Fellows, R.J.; Li, Shu-mei W.; Van Voris, P.; Wentsel, R.S.

    1990-05-01

    The purpose of the following chemical simulant studies is to assess the potential acute environmental effects and persistence of diethyl malonate (DEM). Deposition velocities for DEM to soil surfaces ranged from 0.04 to 0.2 cm/sec. For foliar surfaces, deposition velocities ranged from 0.0002 cm/sec at low air concentrations to 0.05 cm/sec for high dose levels. The residence times or half-lives of DEM deposited to soils was 2 h for the fast component and 5 to 16 h for the residual material. DEM deposited to foliar surfaces also exhibited biphasic depuration. The half-life of the short residence time component ranged from 1 to 3 h, while the longer time component had half-times of 16 to 242 h. Volatilization and other depuration mechanisms reduce surface contaminant levels in both soils and foliage to less than 1% of initial dose within 96 h. DEM is not phytotoxic at foliar mass loading levels of less than 10 {mu}m/cm{sup 2}. However, severe damage is evident at mass loading levels in excess of 17 {mu}g/cm{sup 2}. Tall fescue and sagebrush were more affected than was short-needle pine, however, mass loading levels were markedly different. Regrowth of tall fescue indicated that the effects of DEM are residual, and growth rates are affected only at higher mass loadings through the second harvest. Results from in vitro testing of DEM indicated concentrations below 500 {mu}g/g dry soil generally did not negatively impact soil microbial activity. Short-term effects of DEM were more profound on soil dehydrogenase activity than on soil phosphatase activity. No enzyme inhibition or enhancement was observed after 28 days in incubation. Results of the earthworm bioassay indicate survival to be 86 and 66% at soil doses of 107 and 204 {mu}g DEM/cm{sup 2}, respectively. At higher dose level, activity or mobility was judged to be affected in over 50% of the individuals. 21 refs., 10 figs., 15 tabs.

  5. Advertising campaign for natural gas vehicles is getting along; Werbung fuer Erdgasfahrzeuge kommt ins Rollen

    Energy Technology Data Exchange (ETDEWEB)

    Koerner, I. [me-gas, Projektgruppe Erdgasfahrzeuge, Berlin (Germany)

    2002-10-01

    Six students of the Berlin University of Arts developed a nationwide communication campaign for natural gas vehicles. The campaign is the first of its kind which is not restricted to industrial and commercial users. Apart from the innovative and unusual creations, it was the results of market research that created a sensation. [German] Sechs Studenten der Berliner Universitaet der Kuenste haben eine bundesweite Kommunikationskampagne fuer Erdgasfahrzeuge erarbeitet, die zum ersten Mal nicht nur die gewerblichen Vielfahrer ansprechen soll. Neben den ungewoehnlichen und zum Teil gewagten Kreationen waren es die Ergebnisse aus der Marktforschung, die fuer Ueberraschungen sorgten. (orig.)

  6. Part-turn gearboxes for electric actuators; Schwenkgetriebe fuer elektrische Stellantriebe

    Energy Technology Data Exchange (ETDEWEB)

    Herbstritt, M. [Riester (W.) GmbH und Co. KG, Muellheim (Germany)

    2002-09-01

    Different types of gearboxes provide a useful complement to the electric actuator type ranges. The gearboxes can be combined with the actuators in many ways. Multi-turn actuators, for example, can be turned into part-turn actuators. When using a modular system, a suitable solution for almost any automation task in the field of industrial valves can be found. (orig.) [German] Sinnvoll ergaenzt werden elektrische Stellantriebe fuer Armaturen durch verschiedene Arten von Getrieben. Die Getriebe sind in vielfaeltiger Weise mit den Stellantrieben kombinierbar. So werden beispielsweise aus Drehantrieben Schwenkantriebe. Mit einem Baukasten-System laesst sich so fuer nahezu jede Automatisierungsaufgabe im Bereich der Industriearmaturen eine passende Loesung finden. (orig.)

  7. Dem Generation from Close-Range Photogrammetry Using Extended Python Photogrammetry Toolbox

    Science.gov (United States)

    Belmonte, A. A.; Biong, M. M. P.; Macatulad, E. G.

    2017-10-01

    Digital elevation models (DEMs) are widely used raster data for different applications concerning terrain, such as for flood modelling, viewshed analysis, mining, land development, engineering design projects, to name a few. DEMs can be obtained through various methods, including topographic survey, LiDAR or photogrammetry, and internet sources. Terrestrial close-range photogrammetry is one of the alternative methods to produce DEMs through the processing of images using photogrammetry software. There are already powerful photogrammetry software that are commercially-available and can produce high-accuracy DEMs. However, this entails corresponding cost. Although, some of these software have free or demo trials, these trials have limits in their usable features and usage time. One alternative is the use of free and open-source software (FOSS), such as the Python Photogrammetry Toolbox (PPT), which provides an interface for performing photogrammetric processes implemented through python script. For relatively small areas such as in mining or construction excavation, a relatively inexpensive, fast and accurate method would be advantageous. In this study, PPT was used to generate 3D point cloud data from images of an open pit excavation. The PPT was extended to add an algorithm converting the generated point cloud data into a usable DEM.

  8. Uncertainty modelling and analysis of volume calculations based on a regular grid digital elevation model (DEM)

    Science.gov (United States)

    Li, Chang; Wang, Qing; Shi, Wenzhong; Zhao, Sisi

    2018-05-01

    The accuracy of earthwork calculations that compute terrain volume is critical to digital terrain analysis (DTA). The uncertainties in volume calculations (VCs) based on a DEM are primarily related to three factors: 1) model error (ME), which is caused by an adopted algorithm for a VC model, 2) discrete error (DE), which is usually caused by DEM resolution and terrain complexity, and 3) propagation error (PE), which is caused by the variables' error. Based on these factors, the uncertainty modelling and analysis of VCs based on a regular grid DEM are investigated in this paper. Especially, how to quantify the uncertainty of VCs is proposed by a confidence interval based on truncation error (TE). In the experiments, the trapezoidal double rule (TDR) and Simpson's double rule (SDR) were used to calculate volume, where the TE is the major ME, and six simulated regular grid DEMs with different terrain complexity and resolution (i.e. DE) were generated by a Gauss synthetic surface to easily obtain the theoretical true value and eliminate the interference of data errors. For PE, Monte-Carlo simulation techniques and spatial autocorrelation were used to represent DEM uncertainty. This study can enrich uncertainty modelling and analysis-related theories of geographic information science.

  9. Identification and delineation of areas flood hazard using high accuracy of DEM data

    Science.gov (United States)

    Riadi, B.; Barus, B.; Widiatmaka; Yanuar, M. J. P.; Pramudya, B.

    2018-05-01

    Flood incidents that often occur in Karawang regency need to be mitigated. These expectations exist on technologies that can predict, anticipate and reduce disaster risks. Flood modeling techniques using Digital Elevation Model (DEM) data can be applied in mitigation activities. High accuracy DEM data used in modeling, will result in better flooding flood models. The result of high accuracy DEM data processing will yield information about surface morphology which can be used to identify indication of flood hazard area. The purpose of this study was to identify and describe flood hazard areas by identifying wetland areas using DEM data and Landsat-8 images. TerraSAR-X high-resolution data is used to detect wetlands from landscapes, while land cover is identified by Landsat image data. The Topography Wetness Index (TWI) method is used to detect and identify wetland areas with basic DEM data, while for land cover analysis using Tasseled Cap Transformation (TCT) method. The result of TWI modeling yields information about potential land of flood. Overlay TWI map with land cover map that produces information that in Karawang regency the most vulnerable areas occur flooding in rice fields. The spatial accuracy of the flood hazard area in this study was 87%.

  10. Automatic relative RPC image model bias compensation through hierarchical image matching for improving DEM quality

    Science.gov (United States)

    Noh, Myoung-Jong; Howat, Ian M.

    2018-02-01

    The quality and efficiency of automated Digital Elevation Model (DEM) extraction from stereoscopic satellite imagery is critically dependent on the accuracy of the sensor model used for co-locating pixels between stereo-pair images. In the absence of ground control or manual tie point selection, errors in the sensor models must be compensated with increased matching search-spaces, increasing both the computation time and the likelihood of spurious matches. Here we present an algorithm for automatically determining and compensating the relative bias in Rational Polynomial Coefficients (RPCs) between stereo-pairs utilizing hierarchical, sub-pixel image matching in object space. We demonstrate the algorithm using a suite of image stereo-pairs from multiple satellites over a range stereo-photogrammetrically challenging polar terrains. Besides providing a validation of the effectiveness of the algorithm for improving DEM quality, experiments with prescribed sensor model errors yield insight into the dependence of DEM characteristics and quality on relative sensor model bias. This algorithm is included in the Surface Extraction through TIN-based Search-space Minimization (SETSM) DEM extraction software package, which is the primary software used for the U.S. National Science Foundation ArcticDEM and Reference Elevation Model of Antarctica (REMA) products.

  11. TecDEM: A MATLAB Based Toolbox for understanding Tectonics from Digital Elevation Models

    Science.gov (United States)

    Shahzad, F.; Mahmood, S. A.; Gloaguen, R.

    2009-04-01

    TecDEM is a MATLAB based tool box for understanding the tectonics from digital elevation models (DEMs) of any area. These DEMs can be derived from data of any spatial resolution (Low, medium and High). In the first step we extract drainage network from the DEMs using flow grid approach. Drainage network is a group of streams having elevation and catchment area information as a function of spatial locations. We implement an array of stream structure to study this drainage network. Knickpoints can be identified on each stream of the drainage network by a graphical user interface and are helpful for understanding stream morphology. Stream profile analysis in steady state condition is applied on all streams to calculate geomorphic parameters and regional uplift rates. Hack index is calculated for all the profiles at a certain interval and over the change of knickpoints. Reports menu of this tool box generates detailed statistics report, complete tabulated report, graphical output of each analyzed stream profile and Hack index profile. All the calculated values are part of stream structure and is saved as .mat file for later use with this tool box. The spatial distribution of geomorphic parameters, uplift rates and knickpoints are exported as a shape files for visualization in professional GIS software. We test this tool box on DEMs from different tectonic settings worldwide and received verifiable results with other studies.

  12. Influence of combustion air guidance on solid matter burnout and on pollutant emissions in grid incinerators; Einfluss der Verbrennungsluftfuehrung auf den Feststoffabbrand und auf das Schadstoffverhalten bei der Hausmuellverbrennung auf dem Rost

    Energy Technology Data Exchange (ETDEWEB)

    Hunsinger, H.; Seifert, H. [Forschungszentrum Karlsruhe GmbH Technik und Umwelt (Germany). Inst. fuer Technische Chemie

    2003-07-01

    The contribution investigates the influence of combustion air guidance strategies on process optimisation. In particular, it is investigated if efficient burnout correlates with low pollutant emissions and if the effects are similar or contrary for the different process goals. (orig.) [German] Der Einfluss von Brennstoffqualitaeten, der Ofengeometrie sowie von Feuerungsbetriebsparametern auf die Bildungsraten von Schadstoffen wie PCDD/F und NO{sub x} und auf die Transferraten von Schwermetallen, Chlor- und Schwefelverbindungen aus dem Brennstoffbett ins Rauchgas ist zur Zeit nur ungenuegend bekannt. Besonders die Frage, wie die primaere Forderung nach moeglichst vollstaendigem Ausbrand von Rauchgas und Rostasche mit weiteren Zielen wie niedrige Bildungsraten von Schadstoffen und Inertisierung der Rostasche korreliert, zeigt den Bedarf umfassender systematischer Untersuchungen auf. Im Rahmen dieses Beitrags soll als Beispiel fuer Modifikationen des Verbrennungsprozesses der Einfluss unterschiedlicher Verbrennungsluftfuehrungen auf die aufgefuehrten Optimierungsziele vorgestellt werden. Insbesondere soll der Frage nachgegangen werden, ob ein effizienter Ausbrand mit niedrigen Schadstoffbildungsraten korreliert und ob zwischen den Zielgroessen gleiche oder kontraere Wirkungen auftreten. (orig.)

  13. Electric power in the competitive market - Investing capital for cleaner energy generation still a rewarding business? New perspectives for electrical energy efficiency improvement, the cogeneration technology, and renewable energy generation; Strom im Wettbewerb - Lohnen sich Investitionen in saubere Energien noch? Neue Perspektiven fuer effiziente Stromnutzung, Kraft-Waerme-Kopplung und Erneuerbare Energien. Tagungsband

    Energy Technology Data Exchange (ETDEWEB)

    Schwanhold, E. [comp.

    2000-07-01

    The meeting gathered policymakers, members of the energy industry, the business consulting professions, and scientific institutes and relevant technology companies. New perspectives have been discussed in the context of required framework conditions and processes that have to/can be put in place, or further developed, in order to create a concrete basis or stronger incentives for realisation of climate protection and environmental policy goals in the energy sector. There have been two panel discussions on the issue of whether investing in clean generation technologies will be rewarding. Five papers each presented to these panels have been analysed and prepared for separate retrieval from the database, as well as five papers each of the discussion forum A, ''New perspectives for energy efficiency measures and contracting partnerships'', and the discussion forum B, ''New perspectives for distributed power generation with CHP systems''. From the discussion forum C, ''New perspectives for renewable energy sources'', one paper has been prepared for separate retrieval. (CB) [German] Die Tagung war eine Diskussionsplattform fuer Teilnehmer aus den Bereichen Politik, Energiewirtschaft und wirtschaftsberatende Berufe, Forschungsinstitute und Technologieunternehmen. Neue Perspektiven wurden diskutiert im Zusammenhang mit den Rahmenbedingungen und Moeglichkeiten, die entwickelt oder verstaerkt werden koennen/muessen, um eine konkrete Basis oder staerkere Anreize zur Verwirklichung der Ziele der Klima- und Umweltschutzpolitik in der Energiewirtschaft zu schaffen. Es gab ein Diskussionsforum zur Frage der Wirtschaftlichkeit von Investitionen in saubere Energieerzeugungstechnologien und Energieeffizienz, hiervon wurden 5 Beitraege als Einzelaufnahmen in die Datenbank aufgenommen. Ebenfalls vom Forum A, ''Neue Perspektiven fuer Stromeinsparung und Contracting'', und Forum B, &apos

  14. Product marketing for eco-power; Produktemarketing fuer Oekostrom

    Energy Technology Data Exchange (ETDEWEB)

    Huber, D. [Verband Schweizerischer Elektrizitaetswerke, Zuerich (Switzerland)

    1998-10-30

    The company NaturEnergie (natural energy), a subsidiary of the Energieversorger Kraftwerk Laufenburg AG (KWL) is located in Grenzach-Whylen (Germany) near Basel (Switzerland) has been selling power generated from sun and water since the 1st of October 1998. The company employes a cleverly designed, emotional marketing strategy in order to position the brand ``NaturEnergie`` as a label for ``green power`` on the market. Bulletin VSE talked to Dr. Kai-Hendrik Schlusche (40), co-founder and member of the board of NaturEnergie AG about marketing and pricing of ``green`` power and about relations with Switzerland.(orig.) [Deutsch] Im grenznahen Grenzach-Whylen bei Basel verkauft die Firma NaturEnergie, eine Tochtergesellschaft der Energieversorger Kraftwerk Laufenburg AG (KWL) und Kraftuebertragungswerke Rheinfelden AG (KWR), seit 1. Oktober 1998 Oekostrom aus Sonne und Wasser. Mit Hilfe einer ausgekluegelten emotionellen Marketingstrategie will das junge Unternehmen die Marke `NaturEnergie` als Label fuer `gruenen Strom` im Markt positionieren. Bulletin VSE sprach mit Dr. Kai-Hendrik Schlusche (40), seit Mai 1998 Gruendungsvorstand der NaturEnergie AG, ueber Marketing, Preisgestaltung von `gruenem Strom` und die Beziehungen zur Schweiz. (orig.)

  15. FUSION OF MULTI-SCALE DEMS FROM DESCENT AND NAVCM IMAGES OF CHANG’E-3 USING COMPRESSED SENSING METHOD

    Directory of Open Access Journals (Sweden)

    M. Peng

    2017-07-01

    Full Text Available The multi-source DEMs generated using the images acquired in the descent and landing phase and after landing contain supplementary information, and this makes it possible and beneficial to produce a higher-quality DEM through fusing the multi-scale DEMs. The proposed fusion method consists of three steps. First, source DEMs are split into small DEM patches, then the DEM patches are classified into a few groups by local density peaks clustering. Next, the grouped DEM patches are used for sub-dictionary learning by stochastic coordinate coding. The trained sub-dictionaries are combined into a dictionary for sparse representation. Finally, the simultaneous orthogonal matching pursuit (SOMP algorithm is used to achieve sparse representation. We use the real DEMs generated from Chang’e-3 descent images and navigation camera (Navcam stereo images to validate the proposed method. Through the experiments, we have reconstructed a seamless DEM with the highest resolution and the largest spatial coverage among the input data. The experimental results demonstrated the feasibility of the proposed method.

  16. Dewatering and drying - prerequisites for a safe sewage sludge disposal; Entwaesserung und Trocknung - Voraussetzung fuer eine sichere Klaerschlammentsorgung

    Energy Technology Data Exchange (ETDEWEB)

    Wiesmann, J. [Stadtentwaesserung Zuerich (Switzerland)

    1997-12-31

    Today, besides the agricultural utilization of liquid and drained sludge and the composting, there are the following different disposal ways which come into consideration: - sludge combustion in an independent plant or with garbage together; - utilization as a combustible both in cement and asphalt industry as well as in thermal power stations; - additives in commercial fertilizer or direct utilization as a dry fertilizer in agriculture (phosphorus fertilizer). All these ways demand a sludge product, with a dry content of 55 up to approximately 90 percent. During specification of an as flexible as possible plant in the waste water treatment plant Zurich-Werdhoelzli therefore, was demanded a double stage drying, for the production of both products, one with about 55 percent of dry matter (for combustion without supplementary combustibles) and one of these with 85-95 percent of dry matter. An indirect thin film contact extrusion gear was chosen in order to hold the odour and dust problems as small as possible, a high drying degree, in order to allow the desired corrected piling up and a better handling. This in turn should bring a further flexibility for trading of the sewage sludge product what has again favorable influence on the costs. (orig./SR) [Deutsch] Zur Zeit kommen neben der landwirtschaftlichen Verwertung von fluessigem und entwaessertem Schlamm sowie dem Kompostieren folgende Entsorgungswege in Frage: - Schlammverbrennung in einer eigenstaendigen Anlage oder zusammen mit Muell; - Einsatz als Brennstoff sowohl in der Zement- und Asphaltindustrie wie auch in thermischen Kraftwerken; - Zuschlagstoff in Handelsduenger oder direkter Einsatz als Trockenduenger (Phosphorduenger) in der Landwirtschaft. Alle diese Wege verlangen ein Schlammprodukt, das einen Trockengehalt von 55 resp. rund 90 Prozent aufweisen muss. Bei der Spezifikation einer moeglichst flexiblen Anlage in der Klaeranlage Zuerich-Werdhoelzli wurde deshalb eine zweistufige Trocknung verlangt, die

  17. Assessment of the development of a battery charging infrastructure for a redox flow battery based electromobility concept; Bewertung des Aufbaus einer Ladeinfrastruktur fuer eine Redox-Flow-Batteriebasierte Elektromobilitaet

    Energy Technology Data Exchange (ETDEWEB)

    Arpad Funke, Simon; Wietschel, Martin [Fraunhofer-Institut fuer System- und Innovationsforschung (ISI), Karlsruhe (Germany). Competence Center Energietechnologien und Energiesysteme

    2012-07-01

    Apart from the high acquisition cost, the major obstacles to widespread use of electric-powered vehicles today are long battery charging times and limited mileage. Rechargeable batteries might be a solution. The publication investigates a potential infrastructure for electric-powered vehicles based on so-called redox flow batteries. Redox flow batteries are characterized in that active materials are dissolved in liquid electrolyte and are stored outside the cell. Batteries are recharged by exchanging charged electrolyte for discharged electrolyte, which can be done in fuel stations. Redox flow batteries have the drawback of low energy and power density and were hardly ever considered for mobile applications so far. A technical analysis of RFB technology identified the vanadium oxygen redox flow fuel cell (VOFC) as a promising version. It provides higher energy density than conventional redox flow batteries, but development is still in an early stage. Assuming a 'best case' scenario, a refuelling infrastructure for VOFC vehicles was developed and compared with battery-powered vehicles (BEV) and fuel cell vehicles (FVEV). It was found that electromobility based on VOFC may be a promising alternative to current electromobility concepts. (orig./AKB) [German] Neben den Anschaffungsausgaben stehen lange Ladezeiten und eine beschraenkte Reichweite dem heutigen Einsatz von Elektrofahrzeugen oft entgegen. Eine moegliche Abhilfe koennten betankbare Batterien leisten. In der vorliegenden Arbeit soll ein moeglicher Infrastrukturaufbau fuer Elektrofahrzeuge mit sogenannten Redox-Flow-Batterien untersucht werden. Redox-Flow-Batterien besitzen die Eigenschaft, dass aktive Materialien geloest in Fluessigelektrolyten ausserhalb der Zelle gespeichert werden. Dieser Aufbau ermoeglicht das Aufladen der Batterie, indem der entladene Elektrolyt durch geladenen ausgetauscht wird. Dieser Tausch kann an einer Tankstelle durchgefuehrt werden. Ein wesentlicher Nachteil von Redox

  18. A stage victory for Germany; Etappensieg fuer Deutschland

    Energy Technology Data Exchange (ETDEWEB)

    Schmela, M.

    2000-12-01

    The attorney general of the European Court of Justice considers the German minimum pricing regulation for electricity from renewable energy sources, as contained in the StrEG (act on enhanced use and minimum pricing of electricity from RES), to be in compliance with the EC prohibition on aid. This statement however does not terminate all debates, as he considers the act to be a 'barrier to trade' in the internal market in electricity. (orig./CB) [German] Der Generalanwalt des Europaeischen Gerichtshofes sieht die Mindestpreisregelungen nach dem Stromeinspeisungsgesetz (StrEG) nicht als staatliche Beihilfen. Allerdings gibt es einen neuen Knackpunkt: Der Generalanwalt sieht das Einspeisungsgesetz als 'Handelshindernis'. (orig./CB)

  19. Blaze-DEMGPU: Modular high performance DEM framework for the GPU architecture

    Directory of Open Access Journals (Sweden)

    Nicolin Govender

    2016-01-01

    Full Text Available Blaze-DEMGPU is a modular GPU based discrete element method (DEM framework that supports polyhedral shaped particles. The high level performance is attributed to the light weight and Single Instruction Multiple Data (SIMD that the GPU architecture offers. Blaze-DEMGPU offers suitable algorithms to conduct DEM simulations on the GPU and these algorithms can be extended and modified. Since a large number of scientific simulations are particle based, many of the algorithms and strategies for GPU implementation present in Blaze-DEMGPU can be applied to other fields. Blaze-DEMGPU will make it easier for new researchers to use high performance GPU computing as well as stimulate wider GPU research efforts by the DEM community.

  20. Granular dynamics, contact mechanics and particle system simulations a DEM study

    CERN Document Server

    Thornton, Colin

    2015-01-01

    This book is devoted to the Discrete Element Method (DEM) technique, a discontinuum modelling approach that takes into account the fact that granular materials are composed of discrete particles which interact with each other at the microscale level. This numerical simulation technique can be used both for dispersed systems in which the particle-particle interactions are collisional and compact systems of particles with multiple enduring contacts. The book provides an extensive and detailed explanation of the theoretical background of DEM. Contact mechanics theories for elastic, elastic-plastic, adhesive elastic and adhesive elastic-plastic particle-particle interactions are presented. Other contact force models are also discussed, including corrections to some of these models as described in the literature, and important areas of further research are identified. A key issue in DEM simulations is whether or not a code can reliably simulate the simplest of systems, namely the single particle oblique impact wit...

  1. Diagnostic of the temperature and differential emission measure (DEM based on Hinode/XRT data

    Directory of Open Access Journals (Sweden)

    P. Rudawy

    2008-10-01

    Full Text Available We discuss here various methodologies and an optimal strategy of the temperature and emission measure diagnostics based on Hinode X-Ray Telescope data. As an example of our results we present the determination of the temperature distribution of the X-rays emitting plasma using a filters ratio method and three various methods of the calculation of the differential emission measure (DEM. We have found that all these methods give results similar to the two filters ratio method. Additionally, all methods of the DEM calculation gave similar solutions. We can state that the majority of the pairs of the Hinode filters allows one to derive the temperature and emission measure in the isothermal plasma approximation using standard diagnostics based on the two filters ratio method. In cases of strong flares one can also expect good conformity of the results obtained using a Withbroe – Sylwester, genetic algorithm and least-squares methods of the DEM evaluation.

  2. FEM × DEM: a new efficient multi-scale approach for geotechnical problems with strain localization

    Directory of Open Access Journals (Sweden)

    Nguyen Trung Kien

    2017-01-01

    Full Text Available The paper presents a multi-scale modeling of Boundary Value Problem (BVP approach involving cohesive-frictional granular materials in the FEM × DEM multi-scale framework. On the DEM side, a 3D model is defined based on the interactions of spherical particles. This DEM model is built through a numerical homogenization process applied to a Volume Element (VE. It is then paired with a Finite Element code. Using this numerical tool that combines two scales within the same framework, we conducted simulations of biaxial and pressuremeter tests on a cohesive-frictional granular medium. In these cases, it is known that strain localization does occur at the macroscopic level, but since FEMs suffer from severe mesh dependency as soon as shear band starts to develop, the second gradient regularization technique has been used. As a consequence, the objectivity of the computation with respect to mesh dependency is restored.

  3. Ein Integraler Gestalt-Ansatz fuer Therapie und Beratung

    Directory of Open Access Journals (Sweden)

    Martina Gremmler-Fuhr

    2005-06-01

    Full Text Available Zusammenfassung: In diesem Text stellen wir unseren Ansatz für Psychotherapie und Beratung auf dem Hintergrund des integralen Paradigmas dar. Wir erläutern zunächst kurz vier Anforderungen an ein integrales Konzept in diesem professionellen Bereich: Umgang mit Komplexität und Vielperspektivität, Berücksichtigung gerichteter, vieldimensionaler Entwicklung, Orientierungs- und Sinngebungsfunktion, Realisierung relationaler Qualitäten in der Arbeit. Nach einer Begriffsbestimmung von „Therapie“, „Beratung“ und „Bildung“ charakterisieren wir das seit vielen Jahren von uns entwickelte Konzept für den Integralen Gestalt-Ansatz unter den Fragen nach (1 den Intentionen und Aufgaben von Therapie und Beratung, (2 der Gestaltung der Kommunikation und Beziehung, (3 der Art der Problemdefinition und dem Umgang mit Diagnostik sowie (4 den Strategien und Methoden – alle unter Rückkopplung an die zuvor erläuterten Anforderungen an ein integrales Konzept. Abstract: In this text we present our approach to psychotherapy and counseling on the background of the integral paradigm. We shortly explain four major requirements for such an integral concept: handling complexity and multi-perspectivity, considering directed and multi-dimensional development, offering orientation and meaning, relational qualities. After defining the terms „psychotherapy“, „counselling“, and „education“ we present our concept for the Integral Gestalt Approach which we have developed and evaluated for many years by dealing with four questions: (1 the intentions and tasks of therapy and counselling, (2 the formation of communication and relationship, (3 the specific way of defining problems and using diagnostics, and (4 the strategies and methods – all related back to the major requirements of an integral concept.

  4. Bundesamt fuer Strahlenschutz (BfS). Annual report 2011; Bundesamt fuer Strahlenschutz (BfS). Jahresbericht 2011

    Energy Technology Data Exchange (ETDEWEB)

    Ebermann, Lutz (comp.)

    2012-07-01

    The annual report 2011 of the Bundesamt fuer Strahlenschutz (BfS) includes the following main articles: Fukushima and the consequences, new power lines across Germany and the management of radioactive wastes in Germany. Further topics of the BfS were reasonable exposure to sun and skin cancer prevention, individual health assessment of lung cancer with low-dose CT, occupational radiation exposure in medicine, radiation protection at setting up digital radio of security authorities and organizations, importance of laboratory ring experiments for incorporation monitoring, defence against nuclear hazards: cooperation and exercises in 2011, new developments with regard to radioactivity in drinking water, reportable events in nuclear facilities in 2011, decommissioning of a permanently shut down NPP. The environmental research program of the Federal Environmental ministry - research for strengthening nuclear safety and radiation protection: German uranium miners biobank: consequences of uranium mining and radiological impacts, German miners cohort study, health effects of strong magnetic fields of NMR imaging, radiation exposure due to nuclear medical examinations, national survey on the radio-cesium contamination of wild boars.

  5. Consumer exposure. Basic considerations for regulatory exposure estimations; Exposition des Verbrauchers. Grundlegende Ueberlegungen fuer die Expositionsabschaetzung im regulatorischen Bereich

    Energy Technology Data Exchange (ETDEWEB)

    Heinemeyer, G. [Bundesinstitut fuer Risikobewertung, Berlin (Germany)

    2003-05-01

    ) or LOAEL (low observed adverse effect level). A small hazard/exposure ratio can be attributed to a probability of high risk, whereas a large ratio indicates a small risk of health hazards. The following article discusses the main principles of exposure estimation. (orig.) [German] Die Bewertung von Verbraucherexpositionen umschliesst alle Quellen und Pfade, ueber die Personen im privaten und haeuslichen Umfeld mit Chemikalien in Kontakt kommen. Dabei sind Verbraucher nicht nur diejenigen, die selbst Verbraucherprodukte anwenden, sondern auch alle weiteren Personen, die sekundaer (indirekt) mit dem Produkt Kontakt haben, z.B. Familienangehoerige. Eine Verbraucherexposition kann gemessen oder geschaetzt werden. Beide Verfahren haben Vor- und Nachteile. Waehrend sich Messungen meistens auf individuelle Expositionssituationen beziehen, beschreiben Modelle eher eine verallgemeinerte Expositionssituation (Szenario). Messungen haben daher ihren Platz, wo Quellen von Schadstoffen aufgespuert werden muessen, Modelle eher dort, wo systematisierte Betrachtungen von Risiken durchgefuehrt werden. Zur Expositionsschaetzung gehoeren 3 Abschnitte, erstens die Charakterisierung der Expositionsquelle (z.B. eine Haushaltschemikalie) mit Beschreibung der Anwendungsmodalitaeten (Haeufigkeit, Dauer); zweitens die Beschreibung des zeitlichen Verlaufes der Konzentration des Stoffes im Kontaktmedium, vor allem in der Luft und auf der Haut. Die Exposition wird darueber hinaus durch das Verhalten der exponierten Person selbst bestimmt. Hier ist die Kontaktdauer, auch Zeitbudget genannt, von grosser Bedeutung. Besondere Verhaltensmuster koennen auch fuer bestimmte Populationen von Bedeutung sein. Man nimmt an, dass z.B. im Kindesalter die orale Aufnahme durch das sog. Mouthing (Hand-in-den-Mund-Stecken) eine besondere Rolle spielt. Die Risikocharakterisierung erfolgt durch einen Vergleich der Exposition, ausgedrueckt als Konzentration oder Dosis, mit dem NOAEL (No Observed Adverse Effect Level

  6. Requirements towards an ecologically based heavy vehicle charge for road haulage; Anforderungen an eine umweltorientierte Schwerverkehrsabgabe fuer den Strassengueterverkehr

    Energy Technology Data Exchange (ETDEWEB)

    Rothengatter, W.; Doll, K.

    2001-10-01

    emission classes. The results indicate, that the introduction of an emission based toll regime is able to initiate a sustainable development in freight transport. (orig.) [German] Der Bericht untersucht die Konsequenzen der geplanten Einfuehrung einer Kilometerbasierten Strassenbenutzungsgebuehr auf dem ausseroertlichen Strassennetz 2003. Ausgehend von den mittleren Wegekosten, welche im September 2000 von der Regierungskommission Infrastrukturfinanzierung (Paellmann-Kommission) veroeffentlicht wurden, werden durchschnittliche Gebuehrensaetze von 25 Pf./km ausschliesslich auf Bundesautobahnen bzw. 40 Pf./km auf dem gesamten Fernstrassennetz zur Szenarienbildung herangezogen. Im letzteren Fall wird zusaetzlich ein verbessertes Bahnangebotes betrachtet. In allen Preisszenarien werden die Gebuehrensaetze nach Fahrzeuggewicht (12 t-18 t, >18 t) und nach Emissionsklassen (Pre-Euro bis Euro-5) gestaffelt. Die fuer die drei Preisszenarien untersuchten Auswirkungen umfassen die Verkehrsverlagerung auf das nachgeordnete Strassennetz, Produktivitaetssteigerungen im Fuhrgewerbe, den Umbau der Fahrzeugflotte, sowie die Reaktionen von Versendern bezueglich Modalwahl, Verkehrsvermeidung und Standortwahl. Zu deren Quantifizierung wurden verschiedene Modelle, Datenquellen und aktuelle Erfahrungen (vornehmlich aus der Schweiz) herangezogen. Die Ergebnisse werden in Veraenderungen der Fahrleistungen und der Entwicklung externer Kosten nach Verkehrstraeger, Strassentyp, Fahrzeuggewicht, Emissionsklasse ausgedrueckt. Die Studie ergibt, dass aufgrund von Produktivitaetssteigerungen im Transportgewerbe die durch die SVA hervorgerufenen Kostensteigerungen teilweise aufgefangen werden koennen. Entsprechend ergibt sich nur eine relativ moderate Verlagerung der Verkehrsnachfrage auf die Schiene. Im Falle einer Gebuehrenhoehe von 40 Pf./km und einer deutlichen Verbesserung des Bahnangebots ergibt sich eine Steigerung der Transportmenge Bahn um 14%, waehrend die Fahrleistung auf der Strasse lediglich

  7. Good organization is essential for success. Pt. 1. Energy management for commercial buildings.; Eine gute Organisation ist Voraussetzung fuer den Erfolg. T. 1. Energiemanagement fuer die Gebaeudetechnik.

    Energy Technology Data Exchange (ETDEWEB)

    Rader, Michael [CentraLine c/o Honeywell, Schoenaich (Germany)

    2013-07-15

    Energy costs caused by heating, ventilation, air-conditioning and lighting systems, represent a significant portion of the total operating costs of a building. continuously rising prices of gas, oil and electricity increase the cost pressure on the building operators and users: energy efficiency is becoming a major factor for the competitiveness of a company. In the manufacturing sector, trade and hotel the energy costs have a direct impact on the company's margins. Thus, the willingness to invest in energy saving measures increased. [German] Energiekosten, verursacht durch Heizungs-, Lueftungs-, Klima- und Beleuchtungsanlagen, stellen einen signifikanten Anteil der Gesamtbetriebskosten eines Gebaeudes dar. Kontinuierlich steigende Preise fuer Gas, Oel und Elektrizitaet erhoehen den Kostendruck auf die Gebaeudebetreiber und -nutzer: Energieeffizienz wird zu einem bestimmenden Faktor fuer die Wettbewerbsfaehigkeit eines Unternehmens. Im produzierenden Gewerbe, im Handel und im Hotelgewerbe haben Energiekosten einen direkten Einfluss auf die Margen des Unternehmens. Dadurch erhoeht sich die Bereitschaft, in Energiesparmassnahmen zu investieren.

  8. Developmental Eye Movement (DEM Test Norms for Mandarin Chinese-Speaking Chinese Children.

    Directory of Open Access Journals (Sweden)

    Yachun Xie

    Full Text Available The Developmental Eye Movement (DEM test is commonly used as a clinical visual-verbal ocular motor assessment tool to screen and diagnose reading problems at the onset. No established norm exists for using the DEM test with Mandarin Chinese-speaking Chinese children. This study aims to establish the normative values of the DEM test for the Mandarin Chinese-speaking population in China; it also aims to compare the values with three other published norms for English-, Spanish-, and Cantonese-speaking Chinese children. A random stratified sampling method was used to recruit children from eight kindergartens and eight primary schools in the main urban and suburban areas of Nanjing. A total of 1,425 Mandarin Chinese-speaking children aged 5 to 12 years took the DEM test in Mandarin Chinese. A digital recorder was used to record the process. All of the subjects completed a symptomatology survey, and their DEM scores were determined by a trained tester. The scores were computed using the formula in the DEM manual, except that the "vertical scores" were adjusted by taking the vertical errors into consideration. The results were compared with the three other published norms. In our subjects, a general decrease with age was observed for the four eye movement indexes: vertical score, adjusted horizontal score, ratio, and total error. For both the vertical and adjusted horizontal scores, the Mandarin Chinese-speaking children completed the tests much more quickly than the norms for English- and Spanish-speaking children. However, the same group completed the test slightly more slowly than the norms for Cantonese-speaking children. The differences in the means were significant (P0.05; compared with Spanish-speaking children, the scores were statistically significant (P0.05. DEM norms may be affected by differences in language, cultural, and educational systems among various ethnicities. The norms of the DEM test are proposed for use with Mandarin Chinese

  9. How large is the Upper Indus Basin? The pitfalls of auto-delineation using DEMs

    Science.gov (United States)

    Khan, Asif; Richards, Keith S.; Parker, Geoffrey T.; McRobie, Allan; Mukhopadhyay, Biswajit

    2014-02-01

    Extraction of watershed areas from Digital Elevation Models (DEMs) is increasingly required in a variety of environmental analyses. It is facilitated by the availability of DEMs based on remotely sensed data, and by Geographical Information System (GIS) software. However, accurate delineation depends on the quality of the DEM and the methodology adopted. This paper considers automated and supervised delineation in a case study of the Upper Indus Basin (UIB), Pakistan, for which published estimates of the basin area show significant disagreement, ranging from 166,000 to 266,000 km2. Automated delineation used ArcGIS Archydro and hydrology tools applied to three good quality DEMs (two from SRTM data with 90m resolution, and one from 30m resolution ASTER data). Automatic delineation defined a basin area of c.440,000 km2 for the UIB, but included a large area of internal drainage in the western Tibetan Plateau. It is shown that discrepancies between different estimates reflect differences in the initial extent of the DEM used for watershed delineation, and the unchecked effect of iterative pit-filling of the DEM (going beyond the filling of erroneous pixels to filling entire closed basins). For the UIB we have identified critical points where spurious addition of catchment area has arisen, and use Google Earth to examine the geomorphology adjacent to these points, and also examine the basin boundary data provided by the HydroSHEDS database. We show that the Pangong Tso watershed and some other areas in the western Tibetan plateau are not part of the UIB, but are areas of internal drainage. Our best estimate of the area of the Upper Indus Basin (at Besham Qila) is 164,867 km2 based on the SRTM DEM, and 164,853 km2 using the ASTER DEM). This matches the catchment area measured by WAPDA SWHP. An important lesson from this investigation is that one should not rely on automated delineation, as iterative pit-filling can produce spurious drainage networks and basins, when

  10. Evaluation of fracturing process of soft rocks at great depth by AE measurement and DEM simulation

    International Nuclear Information System (INIS)

    Aoki, Kenji; Mito, Yoshitada; Kurokawa, Susumu; Matsui, Hiroya; Niunoya, Sumio; Minami, Masayuki

    2007-01-01

    The authors developed the stress-based evaluation system of EDZ by AE monitoring and Distinct Element Method (DEM) simulation. In order to apply this system to the soft rock site, the authors try to grasp the relationship between AE parameters, stress change and rock fracturing process by performing the high stiffness tri-axial compression tests including AE measurements on the soft rock samples, and its simulations by DEM using bonded particle model. As the result, it is found that change in predominant AE frequency is effective to evaluate fracturing process in sedimentary soft rocks, and the relationship between stress change and fracturing process is also clarified. (author)

  11. Rehkitzrettung mit dem Fliegenden Wildretter: Erfahrungen der ersten Feldeinsätze

    OpenAIRE

    Wimmer, Tilman; Israel, Martin; Haschberger, Peter; Weimann, Anita

    2013-01-01

    Der Fliegende Wildretter des Deutschen Zentrums für Luft- und Raumfahrt ist als prototypische Kleinserie seit dem Jahr 2010 erfolgreich in Deutsch-land und Österreich im Einsatz, um aus der Luft Wildtiere während der Wiesenmahd aufzuspüren, und diese so vor dem Tod durch das Mähwerk zu retten. Der Prototyp basiert auf einem ferngesteuerten Multikopter, der mit mehreren Kameras ausgestattet ist und damit im Flug zuverlässiger und wesentlich schneller Wildtiere er-kennen kann, als dies mit b...

  12. Institutional advantage

    NARCIS (Netherlands)

    Martin, Xavier

    Is there such a thing as institutional advantage—and what does it mean for the study of corporate competitive advantage? In this article, I develop the concept of institutional competitive advantage, as distinct from plain competitive advantage and from comparative institutional advantage. I first

  13. Evolutionary institutionalism.

    Science.gov (United States)

    Fürstenberg, Dr Kai

    Institutions are hard to define and hard to study. Long prominent in political science have been two theories: Rational Choice Institutionalism (RCI) and Historical Institutionalism (HI). Arising from the life sciences is now a third: Evolutionary Institutionalism (EI). Comparative strengths and weaknesses of these three theories warrant review, and the value-to-be-added by expanding the third beyond Darwinian evolutionary theory deserves consideration. Should evolutionary institutionalism expand to accommodate new understanding in ecology, such as might apply to the emergence of stability, and in genetics, such as might apply to political behavior? Core arguments are reviewed for each theory with more detailed exposition of the third, EI. Particular attention is paid to EI's gene-institution analogy; to variation, selection, and retention of institutional traits; to endogeneity and exogeneity; to agency and structure; and to ecosystem effects, institutional stability, and empirical limitations in behavioral genetics. RCI, HI, and EI are distinct but complementary. Institutional change, while amenable to rational-choice analysis and, retrospectively, to criticaljuncture and path-dependency analysis, is also, and importantly, ecological. Stability, like change, is an emergent property of institutions, which tend to stabilize after change in a manner analogous to allopatric speciation. EI is more than metaphorically biological in that institutional behaviors are driven by human behaviors whose evolution long preceded the appearance of institutions themselves.

  14. The new radiation protection law 2018 and its significance for radiography; Das neue Strahlenschutzrecht 2018 und seine Bedeutung fuer die Radiographie

    Energy Technology Data Exchange (ETDEWEB)

    Kaps, Charlotte; Soelter, Barbara; Steege, Andreas [Deutsche Gesellschaft fuer Zerstoerungsfreie Pruefung e.V., Berlin (Germany)

    2017-08-01

    The European Directive 2013/59 / Euratom (Euratom Directive) requires the Federal Government, pursuant to Article 106 of this Directive, to transpose the content of the directive into national law by 6 February 2018. The aim of the Federal Ministry for the Environment, Nature Conservation, Construction and Reactor Safety (BMUB) is, in addition to the implementation of the directive, to simultaneously make use of the possibility to modernize, improve and make more effective the radiation protection law. Directive 2013/59 / EURATOM will be incorporated into German law by the new Radiological Protection Act (StrlSchG) and other regulations on the level of an ordinance. The Radiological Protection Act, the Radiation Protection Ordinance and the X-ray Ordinance will be replaced by the StrlSchG. It is interesting to see the year 2017 under the point of view that the regulations at the level of regulation need to be elaborated. In particular, since the separation in radiation protection and X-ray regulation is not continued. Users could also experience this time pressure in 2018 when, in addition to the Radiation Protection Act, a large number of ordinances become legally binding. [German] Durch die europaeische Richtlinie 2013/59/EURATOM (Euratom-Richtlinie) ist die Bundesregierung gemaess Artikel 106 dieser Richtlinie verpflichtet, die inhaltlichen Vorgaben bis 6. Februar 2018 in nationales Recht umzusetzen. Das Ziel des Bundesministeriums fuer Umwelt, Naturschutz, Bau und Reaktorsicherheit (BMUB) ist es, neben der Umsetzung der Richtlinie, gleichzeitig die Moeglichkeit zu nutzen, das Strahlenschutzrecht zu modernisieren, praxistauglich zu verbessern und vollzugsfreundlicher zu gestalten. Die Richtlinie 2013/59/EURATOM wird durch das neue Strahlenschutzgesetz (StrlSchG) und weiteren Regelungen auf Verordnungsebene in das deutsche Recht eingehen. Das Strahlenschutzvorsorgegesetz, die Strahlenschutzverordnung und die Roentgenverordnung werden vom StrlSchG abgeloest werden

  15. Assessment of technical risks and energy consumption of processes for regeneration of polluted land; Abschaetzung von technischem Risiko und Energiebedarf bei Sanierungsmassnahmen fuer Altlasten

    Energy Technology Data Exchange (ETDEWEB)

    Trappmann, F.

    1997-04-01

    In case of sensitive use of a site or its surroundings further consideration on pre-elevated remedial action designs should be undertaken. The generated method for the assessment of technical risks and energy consumption intends to enable different users with smaller or broader specialist knowledge to handle the problem. Basic instrument for the variation of intensity of handling is to divide the technical process in a special way into small elements, called module. With regard to the processing line and to the complexity of the process the modules are connected on different levels according to their common function. The levels handled by experts are called detailed risks assessment, the abridged kind of handling is especially for authorities. For some types of contaminations and some technologies are tools and lists available to enable an easier treatment. Generally the method and the tools are employable for other sites too. For the comparative assimilating assessment itself verbal argumentation is used to describe the causes, that modules are identified as weak (in comparison). The result of the consideration is a ranking of the prefered applied technologies rated by energy consumption and technical risks or a demand for special improvements in the case of commissioning. (orig.) [Deutsch] Die vorliegende Dissertation konzentriert sich auf die weitergehende Risiko- und Energiebetrachtung weniger, zuvor mittels strukturierter Auswahlverfahren favorisierter Sanierungsszenarien. Zwecks effizienter Ausnutzung verfuegbarer Finanzmittel erscheint es angemessen, die bislang in ihrer Gesamtheit betrachteten Verfahrensschritte intern eingehender zu untersuchen und potentielle Risiken bewertbar zu machen. Die geschilderte Vorgehensweise basiert auf der Untergliederung komplexer Sanierungsszenarien in einzelne Elemente (Moduln etc.) gemaess dem funktionalen Zusammenwirken und dem Verfahrensablauf. Fuer einzelne Moduln koennen im Rahmen detaillierterer Betrachtungen

  16. Sensorless control of electromagnetic actuators for gas valves in spark ignition engines; Sensorlose Regelung elektromagnetischer Aktuatoren fuer die Betaetigung von Gaswechselventilen im Otto-Motor

    Energy Technology Data Exchange (ETDEWEB)

    Butzmann, S.

    2000-07-01

    Rechenleistung minimiert und die Robustheit des Verfahrens gegenueber Stoerungen wie z.B. Schwankungen der Versorgungsspannung und des Zylindergegendrucks deutlich erhoeht werden. Der Regelalgorithmus wurde in einer kompakten elektronischen Steuereinheit fuer einen 4-Zylinder/16-Ventil-Motor implementiert und sowohl am Laborteststand als auch am befeuerten Motor getestet. Das Verfahren wurde im September 1999 auf der Internationalen Automobilausstellung in Frankfurt dem Fachpublikum vorgefuehrt und stiess auf grosse Resonanz. (orig./AKF)

  17. Combined functional and morphological imaging of sarcomas. Significance for diagnostics and therapy monitoring; Kombinierte funktionelle und morphologische Bildgebung bei Sarkomen. Stellenwert fuer Diagnostik und Therapiemonitoring

    Energy Technology Data Exchange (ETDEWEB)

    Schramm, N.; Rist, C.; Reiser, M.F.; Berger, F. [Klinikum der Ludwig-Maximilians-Universitaet Muenchen, Campus Grosshadern, Institut fuer Klinische Radiologie, Muenchen (Germany); Schlemmer, M.; Issels, R. [Klinikum der Ludwig-Maximilians-Universitaet Muenchen, Campus Grosshadern, Medizinische Klinik und Poliklinik III, Muenchen (Germany)

    2010-04-15

    . Ein Staging von Sarkompatienten einschliesslich der Erfassung von Lungenmetastasen ist damit in einem Untersuchungsgang moeglich. Die PET/CT wird bei Patienten mit primaer ossaeren und Weichteilsarkomen zur Diagnosestellung, zum Staging und Restaging, zum ''metabolischen Tumorgrading'', zur Biopsieplanung, zum Rezidivnachweis sowie zum Therapiemonitoring eingesetzt. Es konnte gezeigt werden, dass der FDG-Uptake des Tumors vor Therapie sowie die Aenderungen im FDG-Uptake nach Therapie signifikant mit der histopathologischen Response und dem Ueberleben der Patienten korrelieren. Damit ermoeglichen PET und PET/CT auch prognostische Aussagen. Neue Perspektiven der Hybridbildgebung mit der PET/CT ergeben sich durch die Etablierung neuer Radiotracer sowie durch die kombinierte Untersuchung von Tumormetabolismus und -perfusion. Die hochaufloesende MRT bleibt fuer die lokale Primaerdiagnostik sowie zur praeoperativen Planung mit Klaerung der exakten anatomischen Situation und moeglicher Infiltration vaskulaerer oder nervaler Strukturen weiter unverzichtbar. Die kontrastverstaerkte MRT ist ein wichtiges und gut verfuegbares Alternativverfahren zur Rezidivdiagnostik, ganz besonders fuer nichthypermetabole Tumoren. Dynamische, kontrastverstaerkte MRT-Sequenzen gewinnen fuer das Therapiemonitoring zunehmend an Bedeutung und sollten in prospektiven Studien mit der FDG-PET/CT korreliert werden. (orig.)

  18. CuRa: Cooperation on non-polluting resource exchange for cost reduction. Final report; CuRa: Cooperation fuer umweltschonenden Ressourcenaustausch zur Nutzung von Kostenreduktionspotenzialen. Abschlussbericht

    Energy Technology Data Exchange (ETDEWEB)

    Schoen, M.; Delahaye, F.; Hiessl, H.; Kotz, C.; Kuntze, U.; Matuschweski, A.; Schuenke, P.; Zoche, P.; Hafkesbrink, J.; Rebhan, A.; Schroll, M.

    2003-02-01

    The project CuRa: (German acronym for Cooperation for Environmentally Friendly Exchange of Resources) aimed to design elements to put into practice the model of sustainable development. The focus was on the participation of industry and business on a regional level and two model regions were chosen for the analysis of case studies. It was intended to give impulses for regional material flow networks between companies, for example by bundling similar material flows to achieve a better profitability and by one-to-one cooperation between companies, one of them using the waste of the partner as raw material. In addition, the potential for reducing material throughput using modern information technology was investigated in a case study. A set of theses derived from institutional theory was verified on the basis of the empirical results. Useful for the development and the stabilization of networks are, among others, expected economic benefits for the partners, common socio-cultural values and traditions, and using existing institutional arrangements as a basis. Different forms of market and policy failures were identified as obstacles, e.g. the established system of waste disposal services, the focus among the responsible actors on compliance with existing rules, and different regulatory obstacles. Nevertheless, in spite of the insufficient number of successful examples and demonstration projects, a shift in orientation from focusing on mere waste disposal towards a closed loop recycling economy and even towards sustainable development was identified within the commercial sector. (orig.) [German] Im Projekt CuRa: (Cooperation fuer umweltschonenden Ressourcenaustausch) sollten in zwei Modellregionen Bausteine fuer die operative Umsetzung des Leitbildes nachhaltiger Entwicklung durch regionale Akteure aus Industrie und Gewerbe entwickelt werden. Es sollte ein Anstoss zu zwischen- und ueberbetrieblicher Vernetzung von Materialfluessen sowie zu einer Umgestaltung der

  19. Quality assurance for the incorporation surveillance in Germany; Qualitaetssicherung fuer die Inkorporationsueberwachung in Deutschland

    Energy Technology Data Exchange (ETDEWEB)

    Buchholz, Werner; Gerstmann, Udo; Hartmann, Martina; Loescher, Simone; Meisenberg, Oliver; Woidy, Patrick [Bundesamt fuer Strahlenschutz, Oberschleissheim (Germany). FB Strahlenschutz und Gesundheit

    2017-08-01

    The coordination center of the Bundesamt fuer Strahlenschutz is performing annual ring experiments for in-vivo and in-vitro measuring points. This procedure allows checking the measuring data and the competence of the personnel. In the last years these tests included also radionuclides that are important in radiation emergency protection. Case studies for dose determination based on incorporation scenarios are included.

  20. Integral energy concepts for office and residential buildings; Integrale Energiekonzepte fuer Buero- und Wohngebaeude

    Energy Technology Data Exchange (ETDEWEB)

    Velten, W.

    1998-06-01

    It has been confirmed by practical project experience that integral energy concepts are an excellent basis for the construction of energy-efficient buildings. In the extreme case buildings can even be self-sufficient in their energy supply. Uniting the responsibility for the overall energy and technology concept in the hands of a single contractor can help reduce frictional losses between those involved in the planning as well costs. A good example of this is the use of a simulation calculation for the prescribed demonstration of proper heat insulation. The presented projects show that it is possible to construct ecologically answerable buildings at attractively low costs. The presented concepts appear particularly convincing from the viewpoint of long-term maintenance of value and user-specific advantages such as agreeable working conditions. [Deutsch] Die konkreten Projekterfahrungen bestaetigen, dass durch integrale Energiekonzepte sowohl im Verwaltungs- als auch im Wohnungsbau hervorragende Voraussetzungen fuer energiesparende Gebaeude geschaffen werden koennen. Im Extremfall kann sogar eine autarke Energieversorgung erreicht werden. Durch Zusammenfassung der Gesamtverantwortung fuer das Energie- und Technikkonzept in einer Hand koennen Reibungsverluste zwischen den Planungsbeteiligten reduziert und Kosten gesenkt werden. Ein Beispiel hierfuer ist die Verbindung des vorgeschriebenen Waermeschutznachweises mit einer fuer alle Beteiligten wesentlich aussagekraeftigeren Simulationsrechnung. Die vorgestellten Projekte zeigen, dass oekologisch sinnvolle Gebaeude auch zu oekonomisch attraktiven Kosten erstellt werden koennen, wobei insbesondere der Aspekt des langfristigen Werterhalts und die nutzerspezifischen Vorteile, z.B. durch angenehmere Arbeitsbedingungen, fuer die vorgestellten Konzepte spricht. (orig.)

  1. Environmental criteria for building site selection; Umweltkriterien bei der Standortsuche fuer Bauvorhaben

    Energy Technology Data Exchange (ETDEWEB)

    Locher, B [Umweltbundesamt, Berlin (Germany)

    1995-09-01

    The author of the present paper provides information on the application of ecological standards as part of the regulation of development planning. (HW) [Deutsch] Die Autorin gibt in ihrem Vortrag Hinweise auf die Anwendung von oekologischen Standards als Regelungsbestandteile fuer die Bauleitplanung. (HW)

  2. Utilizing offshore potentials for wind power generation; Nutzung der Offshore-Potentiale fuer die Windenergie

    Energy Technology Data Exchange (ETDEWEB)

    Hannemann, H. [Neptun Industrie GmbH, Rostock (Germany)

    2000-07-01

    The contribution discusses the importance of the offshore market and recommends measures to develop it. A turnkey offer is required for exports, which means that all organisations cooperating in the pilot project must prove their competence. The status of a pilot project in the Baltic Sea and the further plans for the park (20 systems, 40 MW, more than 10 km off the coast, water depth about 20 m) are reviewed. [German] Zur Erschliessung des Offshore - Marktes fuer Windenergieanlagen ist es erforderlich, die Technologie ''vor der eigenen Haustuer'' demonstrieren zu koennen. Nach einer Betrachtung der europaeischen Offshore - Windenergie - Potentiale und der davon moeglicherweise nutzbaren Anteile wird die Bedeutung des Offshore - Marktes deutlich. Besonders fuer die Hersteller ist der Offshore - Markt fuer den langfristigen Export von besonderer Bedeutung. Um den Export zu realisieren, ist ein Turnkey - Angebot erforderlich, so dass im Pilotprojekt alle an der gesamten Realisation beteiligten Organisationen ihre Kompetenz beweisen muessen und koennen. Der Stand eines Pilotprojektes in der Ostsee und die weitere Planung fuer den Park (20 Anlagen, 40 MW, >10 km Kuestenentfernung, ca. 20 m Wassertiefe) wird dargestellt. (orig.)

  3. Gesellschaft fuer Anlagen- und Reaktorsicherheit (GRS). Annual report 2013/14

    International Nuclear Information System (INIS)

    2016-02-01

    The annual report 2013/14 of the Gesellschaft fuer Anlagen- und Reaktorsicherheit (GRS) includes projects and key activities on the following issues: reactor safety, waste disposal, radiation protection, environmental protection and the support of foreign authorities and TSO. The project executing organizations, the governmental funding, share holding and subsidiaries are summarized.

  4. Institutional entrepreneurship:

    DEFF Research Database (Denmark)

    Gretzinger, Susanne

    2018-01-01

    Institutional entrepreneurship pays specific attention to the process and outcomes of agents who are willing and capable of changing institutions. It has some common ground with the political entrepreneur, a concept that proposes change in norms and institutions because of commitment and activities...... of agents or organisations in the policy arena. The present chapter understands institutional entrepreneurship as the process of changing institutionalised practices. Based on a literature review, it describes the triggers, activities and potential effects of institutional entrepreneurs. The chapter...... concludes by tentatively arguing that political entrepreneurs can be institutional entrepreneurs, but institutional entrepreneurship can be considered as the broader concept that incorporates strategies and visions as well as interpretative-discursive power into the conceptual framework....

  5. Tropical-forest biomass estimation at X-Band from the spaceborne TanDEM-X interferometer

    Science.gov (United States)

    R. Treuhaft; F. Goncalves; J.R. dos Santos; M. Keller; M. Palace; S.N. Madsen; F. Sullivan; P.M.L.A. Graca

    2014-01-01

    This letter reports the sensitivity of X-band interferometric synthetic aperture radar (InSAR) data from the first dual-spacecraft radar interferometer, TanDEM-X, to variations in tropical-forest aboveground biomass (AGB). It also reports the first tropical-forest AGB estimates fromTanDEM-X data. Tropical forests account for...

  6. High-Accuracy Tidal Flat Digital Elevation Model Construction Using TanDEM-X Science Phase Data

    Science.gov (United States)

    Lee, Seung-Kuk; Ryu, Joo-Hyung

    2017-01-01

    This study explored the feasibility of using TanDEM-X (TDX) interferometric observations of tidal flats for digital elevation model (DEM) construction. Our goal was to generate high-precision DEMs in tidal flat areas, because accurate intertidal zone data are essential for monitoring coastal environment sand erosion processes. To monitor dynamic coastal changes caused by waves, currents, and tides, very accurate DEMs with high spatial resolution are required. The bi- and monostatic modes of the TDX interferometer employed during the TDX science phase provided a great opportunity for highly accurate intertidal DEM construction using radar interferometry with no time lag (bistatic mode) or an approximately 10-s temporal baseline (monostatic mode) between the master and slave synthetic aperture radar image acquisitions. In this study, DEM construction in tidal flat areas was first optimized based on the TDX system parameters used in various TDX modes. We successfully generated intertidal zone DEMs with 57-m spatial resolutions and interferometric height accuracies better than 0.15 m for three representative tidal flats on the west coast of the Korean Peninsula. Finally, we validated these TDX DEMs against real-time kinematic-GPS measurements acquired in two tidal flat areas; the correlation coefficient was 0.97 with a root mean square error of 0.20 m.

  7. Development of a LiDAR derived digital elevation model (DEM) as Input to a METRANS geographic information system (GIS).

    Science.gov (United States)

    2011-05-01

    This report describes an assessment of digital elevation models (DEMs) derived from : LiDAR data for a subset of the Ports of Los Angeles and Long Beach. A methodology : based on Monte Carlo simulation was applied to investigate the accuracy of DEMs ...

  8. Illustrations to “Gespräche in dem Reiche derer Todten zwischen dem vortreflichen Moscowitischen Czaar Petro Magno und dem grossen Tyrannen Ivan Basilowiz II” (Peter the Great and Ivan the Terrible) by David Fassmann (1725)

    OpenAIRE

    Ekaterina A. Skvortcova

    2017-01-01

    The journal created by David Fassmann (1683–1744), Gespräche in dem Reiche derer Todten, edited in Leipzig, was a huge success. Each of the 240 issues presents a dialogue between two historical figures from the afterworld. In the 83rd–86th Entrevuë, the interlocutors are Peter the Great and Ivan the Terrible. The texts of the four conversations were thoroughly examined by Eckhard Matthes (1987). The present paper explores how the illustrations to the 83rd–86th Entrevuë visualize the texts, w...

  9. GSF- Research Centre for Environment and Health. Institute for Hydrology. Annual report 2000; GSF - Forschungszentrum fuer Umwelt und Gesundheit. Inst. fuer Hydrologie. Jahresbericht 2000

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-11-01

    The main areas of activities in the period under review are the migration of microorganisms in aquifers, ground water and sediments, transport mechanisms, influence of biofilms on hydraulic properties of sediments, analytical and numerical modelling of nitrate reduction in a bioreactor, migration of copper and antimony in aquifers, isotope identification and quantification in ground water and in neve of an antarctic region. (UKE)

  10. Aluminum or steel? Mounting systems for solar generators - a practice report; Aluminium oder Stahl? Montagesysteme fuer Solargeneratoren - ein Praxisreport

    Energy Technology Data Exchange (ETDEWEB)

    Schnitzer, Sandy [Mounting Systems GmbH, Rangsdorf (Germany); Hannemann, Lydia

    2013-10-01

    Mounting systems for solar generators must be solid and reliable as long as possible so that they carry the modules. Which material is best? [German] Montagesysteme fuer Solargeneratoren muessen solide sein, damit sie moeglichst lange und zuverlaessig die Module tragen.

  11. Sensitivity of MRI in detecting alveolar infiltrates. Experimental studies; Sensitivitaet der MRT fuer alveolaere Infiltrate. Experimentelle Untersuchungen

    Energy Technology Data Exchange (ETDEWEB)

    Biederer, J.; Busse, I.; Grimm, J.; Reuter, M.; Heller, M. [Kiel Univ. (Germany). Klinikum fuer Diagnostische Radiologie; Muhle, C. [Kiel Univ. (Germany). Klinik fuer Nuklearmedizin; Freitag, S. [Kiel Univ. (Germany). Inst. fuer Medizinische Informatik und Statistik

    2002-08-01

    detect pneumonia in patients. (orig.) [German] Zielsetzung: Eine experimentelle Studie zur Untersuchung des Signalverhaltens artifizieller alveolaerer Infiltrate mit T{sub 1}- und T{sub 2}-gewichteten MR-Sequenzen. Material und Methoden: 10 Lungen-Explantate von Schweinen wurden tracheal intubiert, in der kuenstlichen Thoraxhoehle eines Phantoms durch Unterdruck entfaltet und an einem klinischen Magnetresonanztomographen bei 1,5 T untersucht. Mit gezielter Instillation von 100-200 ml Gelatineloesung wurden alveolaere Infiltrate erzeugt und mit Gradientenecho- (2D-, 3D-GRE) und schnellen Spinechosequenzen (T{sub 2}-TSE, T{sub 2}-HASTE) dargestellt. Die Signalintensitaet des Lungenparenchyms nativ und mit Infiltrat wurde an repraesentativen Querschnitten erfasst. Zum Vergleich erfolgten Kontrollen mit Spiral-CT. Ergebnisse: Die instillierte Fluessigkeit simulierte alveolaere Infiltrate mit typischem Milchglasmuster im CT, wie es an Patienten mit Pneumonie oder ARDS beobachtet wird. Vor dem Versuch zeigten nur T{sub 2}-HASTE und T{sub 2}-TSE ein Lungenparenchymsignal (Signal/Rausch-Verhaeltnis von 3,62 bzw. 1,39). Nach Instillation von Fluessigkeit fand sich in diesen Sequenzen ein Signalanstieg von ca. 30% bei 100 ml (p<0,01) bzw. 60% bei 200 ml (p<0,01). Bei 2D-GRE betrug die Signalintensitaetszunahme 0,74% (p=0,32) nach 100 ml und 5,6% (p<0,01) nach 200 ml (fuer 3D-GRE 2,2% [p=0,02] bzw. 4,4% [p<0,01]). Die CT-Kontrollen zeigten fuer 100 ml eine Dichtezunahme um durchschnittlich 17 H.E. (p=0,02) und fuer 200 ml um 75 H.E. (p<0,01). Schlussfolgerungen: Mit T{sub 2}-gewichteten Sequenzen ist die MRT zur Darstellung artifizieller alveolaerer Infiltrate geeignet. (orig.)

  12. DEM GPU studies of industrial scale particle simulations for granular flow civil engineering applications

    Science.gov (United States)

    Pizette, Patrick; Govender, Nicolin; Wilke, Daniel N.; Abriak, Nor-Edine

    2017-06-01

    The use of the Discrete Element Method (DEM) for industrial civil engineering industrial applications is currently limited due to the computational demands when large numbers of particles are considered. The graphics processing unit (GPU) with its highly parallelized hardware architecture shows potential to enable solution of civil engineering problems using discrete granular approaches. We demonstrate in this study the pratical utility of a validated GPU-enabled DEM modeling environment to simulate industrial scale granular problems. As illustration, the flow discharge of storage silos using 8 and 17 million particles is considered. DEM simulations have been performed to investigate the influence of particle size (equivalent size for the 20/40-mesh gravel) and induced shear stress for two hopper shapes. The preliminary results indicate that the shape of the hopper significantly influences the discharge rates for the same material. Specifically, this work shows that GPU-enabled DEM modeling environments can model industrial scale problems on a single portable computer within a day for 30 seconds of process time.

  13. DEM Simulation of Biaxial Compression Experiments of Inherently Anisotropic Granular Materials and the Boundary Effects

    Directory of Open Access Journals (Sweden)

    Zhao-Xia Tong

    2013-01-01

    Full Text Available The reliability of discrete element method (DEM numerical simulations is significantly dependent on the particle-scale parameters and boundary conditions. To verify the DEM models, two series of biaxial compression tests on ellipse-shaped steel rods are used. The comparisons on the stress-strain relationship, strength, and deformation pattern of experiments and simulations indicate that the DEM models are able to capture the key macro- and micromechanical behavior of inherently anisotropic granular materials with high fidelity. By using the validated DEM models, the boundary effects on the macrodeformation, strain localization, and nonuniformity of stress distribution inside the specimens are investigated using two rigid boundaries and one flexible boundary. The results demonstrate that the boundary condition plays a significant role on the stress-strain relationship and strength of granular materials with inherent fabric anisotropy if the stresses are calculated by the force applied on the wall. However, the responses of the particle assembly measured inside the specimens are almost the same with little influence from the boundary conditions. The peak friction angle obtained from the compression tests with flexible boundary represents the real friction angle of particle assembly. Due to the weak lateral constraints, the degree of stress nonuniformity under flexible boundary is higher than that under rigid boundary.

  14. An Optimal DEM Reconstruction Method for Linear Array Synthetic Aperture Radar Based on Variational Model

    Directory of Open Access Journals (Sweden)

    Shi Jun

    2015-02-01

    Full Text Available Downward-looking Linear Array Synthetic Aperture Radar (LASAR has many potential applications in the topographic mapping, disaster monitoring and reconnaissance applications, especially in the mountainous area. However, limited by the sizes of platforms, its resolution in the linear array direction is always far lower than those in the range and azimuth directions. This disadvantage leads to the blurring of Three-Dimensional (3D images in the linear array direction, and restricts the application of LASAR. To date, the research on 3D SAR image enhancement has focused on the sparse recovery technique. In this case, the one-to-one mapping of Digital Elevation Model (DEM brakes down. To overcome this, an optimal DEM reconstruction method for LASAR based on the variational model is discussed in an effort to optimize the DEM and the associated scattering coefficient map, and to minimize the Mean Square Error (MSE. Using simulation experiments, it is found that the variational model is more suitable for DEM enhancement applications to all kinds of terrains compared with the Orthogonal Matching Pursuit (OMPand Least Absolute Shrinkage and Selection Operator (LASSO methods.

  15. Modeling bubble heat transfer in gas-solid fluidized beds using DEM

    NARCIS (Netherlands)

    Patil, A.V.; Peters, E.A.J.F.; Kolkman, T.; Kuipers, J.A.M.

    2014-01-01

    Discrete element method (DEM) simulations of a pseudo 2-D fluidized bed at non-isothermal conditions are presented. First implementation details are discussed. This is followed by a validation study where heating of a packed column by a flow of heated fluid is considered. Next hot gas injected into

  16. Rockslide and Impulse Wave Modelling in the Vajont Reservoir by DEM-CFD Analyses

    Science.gov (United States)

    Zhao, T.; Utili, S.; Crosta, G. B.

    2016-06-01

    This paper investigates the generation of hydrodynamic water waves due to rockslides plunging into a water reservoir. Quasi-3D DEM analyses in plane strain by a coupled DEM-CFD code are adopted to simulate the rockslide from its onset to the impact with the still water and the subsequent generation of the wave. The employed numerical tools and upscaling of hydraulic properties allow predicting a physical response in broad agreement with the observations notwithstanding the assumptions and characteristics of the adopted methods. The results obtained by the DEM-CFD coupled approach are compared to those published in the literature and those presented by Crosta et al. (Landslide spreading, impulse waves and modelling of the Vajont rockslide. Rock mechanics, 2014) in a companion paper obtained through an ALE-FEM method. Analyses performed along two cross sections are representative of the limit conditions of the eastern and western slope sectors. The max rockslide average velocity and the water wave velocity reach ca. 22 and 20 m/s, respectively. The maximum computed run up amounts to ca. 120 and 170 m for the eastern and western lobe cross sections, respectively. These values are reasonably similar to those recorded during the event (i.e. ca. 130 and 190 m, respectively). Therefore, the overall study lays out a possible DEM-CFD framework for the modelling of the generation of the hydrodynamic wave due to the impact of a rapid moving rockslide or rock-debris avalanche.

  17. Landsat 5 TM images and DEM in lithologic mapping of Payen Volcanic Field (Mendoza Province, Argentina)

    International Nuclear Information System (INIS)

    Fornaciai, A.; Bisson, M.; Mazzarini, F.; Del Carlo, P.; Pasquare, G.

    2009-01-01

    Satellite image such as Landsat 5 TM scene provides excellent representation of Earth and synoptic view of large geographic areas in different band combination. Landsat TM images allow automatic and semi-automatic classification of land cover, nevertheless the software frequently may some difficulties in distinguishing between similar radiometric surfaces. In this case, the use of Digital Elevation Model (DEM) can be an important tool to identify different surface covers. In this study, several False Color Composite (FCC) of Landsat 5 TM Image, DEM and the respective draped image of them, were used to delineate lithological boundaries and tectonic features of regional significance of the Paven Volcanic Field (PVF). PFV is a Quaternary fissural structure belonging to the black-arc extensional areas of the Andes in the Mendoza Province (Argentina) characterized by many composite basaltic lava flow fields. The necessity to identify different lava flows with the same composition, and then with same spectral features, allows to highlight the improvement of synergic use of TM images and shaded DEM in the visual interpretation. Information obtained from Satellite data and DEM have been compared with previous geological maps and transferred into a topographical base map. Based on these data a new lithological map at 1:100.000 scale has been presented [it

  18. Discrete element simulation of mill charge in 3D using the BLAZE-DEM GPU framework

    CSIR Research Space (South Africa)

    Govender, Nicolin

    2015-08-01

    Full Text Available The Discrete Element Method (DEM) simulation of charge motion in ball, semi autogenous (SAG) and autogenous mills has advanced to a stage where the effects of lifter design, power draft and product size can be evaluated with sufficient accuracy...

  19. Die Geburt des Kosmos aus dem Nichts die Theorie des inflationären Universums

    CERN Document Server

    Guth, Alan

    2002-01-01

    Selten wird die Wissenschaft über Nacht so stark revolutioniert wie die Kosmologie durch Alan Guths Entdeckung der inflationären Theorie des Universums. Noch seltener gelingt es dem Urheber einer solchen Revolution, eine derart verständliche und einprägsame Darstellung von einer der aufregendsten Epochen in der modernen Kosmologie zu geben. Sogar Kenner werden Neues lernen.

  20. Impact of mesh and DEM resolutions in SEM simulation of 3D seismic response

    NARCIS (Netherlands)

    Khan, Saad; van der Meijde, M.; van der Werff, H.M.A.; Shafique, Muhammad

    2017-01-01

    This study shows that the resolution of a digital elevation model (DEM) and model mesh strongly influences 3D simulations of seismic response. Topographic heterogeneity scatters seismic waves and causes variation in seismic response (am-plification and deamplification of seismic amplitudes) at the

  1. Estimating Horizontal Displacement between DEMs by Means of Particle Image Velocimetry Techniques

    Directory of Open Access Journals (Sweden)

    Juan F. Reinoso

    2015-12-01

    Full Text Available To date, digital terrain model (DTM accuracy has been studied almost exclusively by computing its height variable. However, the largely ignored horizontal component bears a great influence on the positional accuracy of certain linear features, e.g., in hydrological features. In an effort to fill this gap, we propose a means of measurement different from the geomatic approach, involving fluid mechanics (water and air flows or aerodynamics. The particle image velocimetry (PIV algorithm is proposed as an estimator of horizontal differences between digital elevation models (DEM in grid format. After applying a scale factor to the displacement estimated by the PIV algorithm, the mean error predicted is around one-seventh of the cell size of the DEM with the greatest spatial resolution, and around one-nineteenth of the cell size of the DEM with the least spatial resolution. Our methodology allows all kinds of DTMs to be compared once they are transformed into DEM format, while also allowing comparison of data from diverse capture methods, i.e., LiDAR versus photogrammetric data sources.

  2. Use of DEMs Derived from TLS and HRSI Data for Landslide Feature Recognition

    Directory of Open Access Journals (Sweden)

    Maurizio Barbarella

    2018-04-01

    Full Text Available This paper addresses the problems arising from the use of data acquired with two different remote sensing techniques—high-resolution satellite imagery (HRSI and terrestrial laser scanning (TLS—for the extraction of digital elevation models (DEMs used in the geomorphological analysis and recognition of landslides, taking into account the uncertainties associated with DEM production. In order to obtain a georeferenced and edited point cloud, the two data sets require quite different processes, which are more complex for satellite images than for TLS data. The differences between the two processes are highlighted. The point clouds are interpolated on a DEM with a 1 m grid size using kriging. Starting from these DEMs, a number of contour, slope, and aspect maps are extracted, together with their associated uncertainty maps. Comparative analysis of selected landslide features drawn from the two data sources allows recognition and classification of hierarchical and multiscale landslide components. Taking into account the uncertainty related to the map enables areas to be located for which one data source was able to give more reliable results than another. Our case study is located in Southern Italy, in an area known for active landslides.

  3. Demência na doença de Parkinson Dementia in Parkinsn's disease

    Directory of Open Access Journals (Sweden)

    Leonardo Caixeta

    2008-12-01

    Full Text Available OBJETIVO: A presença de síndromes psiquiátricas, incluindo demência, associada a distúrbios motores tem sido cada vez mais reconhecida durante a última década, com destaque para o prejuízo cognitivo na doença de Parkinson idiopática. Esta revisão enfocará a epidemiologia, os aspectos clínicos, diagnósticos diferenciais, mecanismos subjacentes e o tratamento da demência na doença de Parkinson idiopática. MÉTODO: Uma revisão da literatura dos estudos que investigaram a demência da doença de Parkinson idiopática foi realizada. RESULTADOS: A demência é altamente prevalente na doença de Parkinson idiopática. O protótipo da demência na doença de Parkinson idiopática consiste numa síndrome disexecutiva com comprometimento da atenção, funções executivas e, secundariamente, a memória. Neuroquimicamente, o déficit mais significativo parece ser colinérgico; a demência se correlaciona com a presença de corpos de Lewy corticais e límbicos. Evidências preliminares sugerem que os anticolinesterásicos podem ser efetivos na demência da doença de Parkinson idiopática. CONCLUSÕES: O prejuízo cognitivo na doença de Parkinson idiopática é associado a características próprias e é responsável por importante incapacidade nestes pacientes.OBJECTIVE: The concomitant presence of psychiatric syndromes, including dementia, with motor disturbance has been increasingly recognized during the last decade, with emphasis on cognitive impairment in idiopatic Parkinson's disease. This review will focus on the epidemiology, clinical aspects, differential diagnosis, underlying mechanisms and treatment of dementia in Parkinson's disease. METHOD: A literature review of the studies that investigated the dementia in Parkinson's disease was performed. RESULTS: Dementia is highly prevalent in Parkinson's disease. The prototype of dementia in Parkinson's disease is a dysexecutive syndrome with impaired attention, executive functions and

  4. Effect of DEM resolution and comparison between different weighting factors for hydrologic connectivity index

    Science.gov (United States)

    Cantreul, Vincent; Cavalli, Marco; Degré, Aurore

    2016-04-01

    The emerging concept of hydrological connectivity is difficult to quantify. Some indices have been proposed. The most cited is Borselli's one. It mainly uses the DEM as input. The pixel size may strongly impacts the result of the calculation. It has not been studied yet in silty areas. Another important aspect is the choice of the weighting factor which strongly influences the index value. The objective of this poster is so to compare 8 different DEM's resolutions (12, 24, 48, 72, 96, 204, 504 and 996cm) and 3 different weighting factors (factor C of Wischmeier, Manning's factor and rugosity index) in the Borselli's index calculation. The IC was calculated in a 124ha catchment (Hevillers), in the loess belt, in Belgium. The DEM used is coming from a UAV with a maximum resolution of 12 cm. Permanent covered surfaces are not considered in order to avoid artefact due to the vegetation (2% of the surface). Regarding the DEM pixel size, the IC increases for a given pixel when the pixel size decreases. That confirms some results observed in the Alpine region by Cavalli (2014). The mean difference between 12 cm and 10 m resolution is 35% with higher values up to 100% for higher connectivity zones (flow paths). Another result is the lower impact of connections in the watershed (grass strips…) at lower pixel sizes. This is linked to the small width of some connections which are sometimes comparing to cell size. Furthermore, a great loss of precision is observed from the 500 cm pixel size and upper. That remark is quite intuitive. Finally, some very well disconnected zones appear for the highest resolutions. Regarding the weighting factor, IC values calculated using C factor are lower than with the rugosity index which is only a topographic factor. With very high resolution DEM, it permits to represent the fine topography. For the C factor, the zones up to very well disconnected areas (grass strips, wood…) are well represented with lower index values than downstream

  5. DemQSAR: predicting human volume of distribution and clearance of drugs.

    Science.gov (United States)

    Demir-Kavuk, Ozgur; Bentzien, Jörg; Muegge, Ingo; Knapp, Ernst-Walter

    2011-12-01

    In silico methods characterizing molecular compounds with respect to pharmacologically relevant properties can accelerate the identification of new drugs and reduce their development costs. Quantitative structure-activity/-property relationship (QSAR/QSPR) correlate structure and physico-chemical properties of molecular compounds with a specific functional activity/property under study. Typically a large number of molecular features are generated for the compounds. In many cases the number of generated features exceeds the number of molecular compounds with known property values that are available for learning. Machine learning methods tend to overfit the training data in such situations, i.e. the method adjusts to very specific features of the training data, which are not characteristic for the considered property. This problem can be alleviated by diminishing the influence of unimportant, redundant or even misleading features. A better strategy is to eliminate such features completely. Ideally, a molecular property can be described by a small number of features that are chemically interpretable. The purpose of the present contribution is to provide a predictive modeling approach, which combines feature generation, feature selection, model building and control of overtraining into a single application called DemQSAR. DemQSAR is used to predict human volume of distribution (VD(ss)) and human clearance (CL). To control overtraining, quadratic and linear regularization terms were employed. A recursive feature selection approach is used to reduce the number of descriptors. The prediction performance is as good as the best predictions reported in the recent literature. The example presented here demonstrates that DemQSAR can generate a model that uses very few features while maintaining high predictive power. A standalone DemQSAR Java application for model building of any user defined property as well as a web interface for the prediction of human VD(ss) and CL is

  6. DEM GENERATION FROM HIGH RESOLUTION SATELLITE IMAGES THROUGH A NEW 3D LEAST SQUARES MATCHING ALGORITHM

    Directory of Open Access Journals (Sweden)

    T. Kim

    2012-09-01

    Full Text Available Automated generation of digital elevation models (DEMs from high resolution satellite images (HRSIs has been an active research topic for many years. However, stereo matching of HRSIs, in particular based on image-space search, is still difficult due to occlusions and building facades within them. Object-space matching schemes, proposed to overcome these problem, often are very time consuming and critical to the dimensions of voxels. In this paper, we tried a new least square matching (LSM algorithm that works in a 3D object space. The algorithm starts with an initial height value on one location of the object space. From this 3D point, the left and right image points are projected. The true height is calculated by iterative least squares estimation based on the grey level differences between the left and right patches centred on the projected left and right points. We tested the 3D LSM to the Worldview images over 'Terrassa Sud' provided by the ISPRS WG I/4. We also compared the performance of the 3D LSM with the correlation matching based on 2D image space and the correlation matching based on 3D object space. The accuracy of the DEM from each method was analysed against the ground truth. Test results showed that 3D LSM offers more accurate DEMs over the conventional matching algorithms. Results also showed that 3D LSM is sensitive to the accuracy of initial height value to start the estimation. We combined the 3D COM and 3D LSM for accurate and robust DEM generation from HRSIs. The major contribution of this paper is that we proposed and validated that LSM can be applied to object space and that the combination of 3D correlation and 3D LSM can be a good solution for automated DEM generation from HRSIs.

  7. The use potential of aquifer thermal energy storage systems in Canada; Das Anwendungspotential fuer Aquiferwaermespeichersysteme in Kanada

    Energy Technology Data Exchange (ETDEWEB)

    Cruickshanks, F. [Environment Canada, Dartmouth, ON (Canada); Morofski, E. [Government Services Canada, Ottawa, ON (Canada). Technology RD and D

    1994-12-31

    This paper offers a brief overview of the historical and technical aspects of aquifer thermal energy storage and its use potential in commercial buildings in Canada. Aquifer thermal energy storage systems are now attractive both for new commercial buildings in Canada and for some already existing ones. This holds true especially of the Atlantic region, where fuel costs are rising and electric power rates vary according to the time of day. The simple pay-back period for ATES systems is between zero and five years. The economic aspects of the use of ATES systems in buildings are pointed out. (orig./BWI) [Deutsch] Dieser Beitrag gibt eine kurze Uebersicht der historischen und technischen Aspekte der Waermespeicherung in Aquiferen und deren Verwendungspotential in kommerziellen Gebaeuden in Kanada. Aquiferwaermespeicherungssysteme sind nunmehr attraktiv sowohl fuer neue als auch fuer manche bereits bestehenden kommerziellen Gebaeude in Kanada. Dies gilt insbesondere fuer die atlantische Region wegen der dort steigenden Kosten fuer Brennstoffe und tageszeitabhaengigen fuer elektrischen Strom. Die einfache Amortisationszeit fuer ATES-Systeme liegt zwischen null und fuenf Jahren. Die wirtschaftlichen Gesichtspunkte des Einsatzes von ATES-Systemen in kommerziellen Gebaeuden werden angefuehrt. (orig./BWI)

  8. In-vitro investigations of the speed of pyrrole formation of 2,5-hexanedione and 2,5-heptanedione with N{alpha}-acetyl-L-lysine as a precondition for a comparative assessment of the neurotoxic potentials of the two {gamma}-diketones; In-vitro-Untersuchungen zur Pyrrolbildungsgeschwindigkeit von 2,5-Hexandion und 2,5-Heptandion mit N{alpha}-Acetyl-L-lysin als Voraussetzung fuer eine vergleichende Abschaetzung der neurotoxischen Potentiale beider {gamma}-Diketone

    Energy Technology Data Exchange (ETDEWEB)

    Richter, M.F.

    1997-09-01

    N-hexane and n-heptane are important solvents. Chronic exposure to n-hexane causes polyneuropathies, which are attributed to the metabolite 2,5-hexanedione, a {gamma} diketone. As a basis for a comparative assessment of the neurotoxic potentials of 2,5-hexanedione and 2,5-heptanedione, an in-vitro test was developed and used to investigate the speed of pyrrole formation of the two {gamma} diketones in reacting with the {epsilon} amino group of N{alpha}-acetyl L-lysine. The speed of the formation of pyrrole was always directly proportional to the respective reactant concentration. It consequently is subject to a second-order kinetics. As a further result, the pyrrole formation speed of 2,5-heptanedione was found to be only half that of 2,5-hexanedione. The results lead to the conclusion that 2,5-heptanedione poses a smaller risk of developing peripheral neuropathy than 2,5-hexanedione. (orig./MG) [Deutsch] n-Hexan und n-Heptan sind wichtige Loesungsmittel. Chronische Exposition gegenueber n-Hexan ruft Polyneuropathien hervor, die auf den Metaboliten 2,5-Hexandion, ein {gamma}-Diketon, zurueckgefuehrt werden. Als Grundlage fuer eine vergleichende Abschaetzung der neurotoxischen Potentiale von 2,5-Hexandion und 2,5-Heptandion wurde in der vorliegenden Arbeit ein In-vitro-Test entwickelt, mit dem die Pyrrolbildungsgeschwindigkeiten der beiden {gamma}-Diketone mit der {epsilon}-Aminogruppe von N{alpha}-Acetyl-L-Iysin untersucht wurden. Die Pyrrolbildungsgeschwindigkeit war stets direkt proportional zur jeweiligen Reaktantenkonzentration. Somit unterliegt sie einer Kinetik 2. Ordnung. Weiterhin wurde gezeigt, dass die Pyrrolbildungsgeschwindigkeit fuer 2,5-Heptandion nur etwa halb so gross ist wie fuer 2,5-Hexandion. Aus den Ergebnissen wird gefolgert, dass das von 2,5-Heptandion ausgehende Risiko an peripheren Neuropathien zu erkranken geringer ist, als das von 2,5-Hexandion ausgehende. (orig./MG)

  9. Interdisciplinary analysis of the chances of implementation of an energy conservation and air pollution abatement policy. Adverse and favourable conditions for rational energy use in private households and their responsible decision-makers from an economic and social psychological perspective; Interdisziplinaere Analyse der Umsetzungschancen einer Energiespar- und Klimaschutzpolitik. Hemmende und foerdernde Bedingungen der rationellen Energienutzung fuer private Haushalte und ihr Akteursumfeld aus oekonomischer und sozialpsychologischer Perspektive

    Energy Technology Data Exchange (ETDEWEB)

    Hennicke, P.; Jochem, E.; Prose, F.

    1997-08-01

    The investigation attempted an analysis of the causes and remedies of the gap between ecological and climate-relevant requirements on the one hand and public and political action on the other hand. It presents a theoretical concept for an ecologically oriented social restructuring process which will support rational energy use and the appropriate research and development measures more strongly than it does now. While the Federal government intends a 25 % reduction of carbon dioxide emissions by 2005, an 80 % reduction is required on a long-term basis (e.g. by 2050). In view of this, the contribution of the German government is interpreted as a necessary but still insufficient contribution to sustainability. [German] Diese Studie erarbeitet einen Beitrag zur Analyse der Ursachen und Loesungsmoeglichkeiten fuer den Widerspruch zwischen umwelt- und klimarelevanten Handlungsnotwendigkeiten einerseits und den gesellschaftlichen Handlungsdefiziten andererseits. Weitergehend erbringt sie einen theoretisch-konzeptionellen Ansatz zum oekologischen Umbau der Industriegesellschaft. Dadurch wird konkret dazu beigetragen, die Politik zur rationellen Energieanwendung einschliesslich der Forschungs- und Entwicklungspolitik besser als bisher zu unterstuetzen. Ausgegangen wird von dem energie- und klimapolitischen Ziel der Bundesregierung, bis zum Jahr 2005 die CO{sub 2}-Emissionen gegenueber dem Referenzjahr 1990 um 25% zu reduzieren. Langfristig, bis etwa zum Jahr 2050, ist nach der Empfehlung der Klima-Enquete-Kommission eine CO{sub 2}-Reduktion um 80% erforderlich. Dieser Beitrag der Bundesrepublik zum internationalen Klimaschutz kann als notwendige, wenn auch noch nicht hinreichende Voraussetzung fuer eine 'zukunftsfaehige Entwicklung' (sustainability) in der Bundesrepublik interpretiert werden. (orig.)

  10. Imaging techniques for ultrasonic testing; Bildgebende Verfahren fuer die Ultraschallpruefung

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2013-07-01

    - Klassische Anwendungen und neuere Entwicklungen der Ultraschall-Bildgebung; 3. Innovative abbildende Ultraschallverfahren in der Forschung und Applikation; 4. Industrielle Ultraschallpruefung geometrisch komplexer Faserverbundstrukturen; 5. Visualisierung von Rissspitzen bei der Pruefung von Radsatzwellen mit Laengsbohrung zur Vermeidung unnoetiger Radsatzwechsel; 6. Flaechige Analyse der Ausbreitung von Lamb-Wellen an gekruemmten, anisotropen Strukturen; 7. Hochaufloesende Darstellung bei der Pruefung in Tauchtechnik; 8. Varianten zur Bilderzeugung aus Phased Array Messdaten - Praktische Beispiele an Kupfer, CFK und anderen Materialien; 9. GIUM - ein unkonventionelles Verfahren der Mikrostrukturabbildung mit Ultraschallanregung und laservibrometrischer Abtastung; 10. Innovative Pruefkonzepte im Luftultraschall zur verbesserten Bildgebung; 11. Nutzung von bildgebenden Verfahren zur Verbesserung der zfP-Pruefaussage; 12.Modellierung und Visualisierung der EMUS-Anregung als Hilfsmittel zur Wandleroptimierung; 13. Anwendung von SAFT im Energiemaschinenbau; 14. Bildgebende Ultraschallpruefung zur verbesserten Fehlercharakterisierung bei der Schweissnahtpruefung von laengsnahtgeschweissten Grossrohren; 15. SAFT-Rekonstruktion fuer die Querfehlerpruefung in austenitischen Schweissnaehten und Mischnaehten; 16. Bildgebendes Optimierungsverfahren zur quantitativen US-Pruefung an anisotropen und inhomogenen austenitischen Schweissverbindungen mit Bestimmung und Nutzung der elastischen Eigenschaften. Ein Beitrag wurde separat aufgenommen.

  11. Colonial Institutions

    DEFF Research Database (Denmark)

    McAtackney, Laura; Palmer, Russell

    2016-01-01

    and the USA which reveal that the study of colonial institutions should not be limited to the functional life of these institutions—or solely those that take the form of monumental architecture—but should include the long shadow of “imperial debris” (Stoler 2008) and immaterial institutions....

  12. Innovation for improvement of pedestrian protection as the challenge for the development of front-end structures of passenger cars; Innovationen zur Verbesserung des Fussgaengerschutzes als Herausforderung fuer die Entwicklung von PKW-Vorbaustrukturen

    Energy Technology Data Exchange (ETDEWEB)

    Kramer, F.; Weidemann, W.; Jansohn, W.; Schneider, M. [EDAG Engineering and Design AG, Fulda (Germany)

    2001-07-01

    Requirements for improvement of pedestrian protection are the result of real-world accidents and test conditions, which take an important role in development of front-end structures of passenger cars at present, based on legal regulations (EU directives expected in 2005) and on car assessment programmes (application as per EuroNCAP since 1997). Styling and packaging are major considerations in conceptual realisation on a large scale. Furthermore, demands for minimisation of weight and cost have to be considered as marginal conditions. Solutions for this conflict of aims, which results from the new safety requirements and performance criteria for front-end structures, are to be represented and discussed based on concrete examples. (orig.) [German] Anforderungen zur Verbesserung des Fussgaengerschutzes resultieren einerseits aus dem Unfallgeschehen und andererseits aus Versuchsbedingungen, die derzeit auf der Basis von gesetzlichen Regelungen (erwartete EU-Richtlinie etwa im Jahr 2005) und von Sicherheitsbewertungen (Anwendung im Rahmen von EuroNCAP seit 1997) in der Vorbau-Entwicklung von Personenkraftwagen eine bedeutende Rolle einnehmen. Die konzeptionelle Umsetzung tangiert sowohl Styling als auch Packaging in erheblichem Umfang, darueber hinaus sind als Randbedingungen die Forderungen nach der Minimierung von Gewicht und Kosten zu beruecksichtigen. Die Loesungen dieses Zielkonfliktes, deren Wirkungsfeld durch die neuen Sicherheitsanforderungen und die Auslegungskriterien fuer Vorbaustrukturen aufgespannt wird, sollen anhand von konkreten Beispielen dargestellt und diskutiert werden. (orig.)

  13. Method for assessing modular concepts for reformate gas processing for PEM fuel cell systems for decentral power supply; Methodik zur Bewertung modularer Konzepte zur Reformatgasaufbereitung fuer PEM-Brennstoffzellenanlagen zur dezentralen Energieversorgung

    Energy Technology Data Exchange (ETDEWEB)

    Gerber, J.

    2007-02-08

    The dissertation presents the fundamentals of hydrogen gas processing and CO gas purification methods and, on this basis, develops a method for energetic modularisation of the gas treatment process. All process stages are modelled and analyzed on the basis of mass and energy balances. The theoretical discussion of solution methods for the balance equations of the various process stages is limited to the steam reforming and CO gas purification system. Parameters are defined for energetic assessment of the process variants. The method leads to the identification of energetically optimized process variants. Its main goal is the optimum utilisation of process-internal energy and mass flows. The graphic pinch method is a key component of the method presented; it is adapted to the exemplary process. [German] In der Dissertation wird, ausgehend von der Darstellung der Grundlagen der Wasserstoffgasaufbereitungs- und CO-Gasreinigungsverfahren, eine Methodik zur energetischen Modularisierung des Gasaufbereitungsprozesses entwickelt. Die Modellierung und Analyse der einzelnen Prozessstufen erfolgt auf der Basis von Masse- und Energiebilanzen. Die theoretische Darstellung der Loesungsmethoden fuer die Bilanzgleichungen der einzelnen Prozessstufen ist dabei auf das System Dampfreformierung und CO-Gasreinigung eingegrenzt. Parameter zur energetischen Bewertung der Prozessvarianten werden definiert. Die Methodik fuehrt zur Eingrenzung energetisch optimierter Prozessvarianten. Ihr Hauptziel liegt in der optimalen Nutzung prozessinterner Energie- und Stoffstroeme. Ein zentraler Bestandteil der Methodik ist die graphische Pinch-Methode. Sie wird dem vorliegenden Prozess angepasst.

  14. Institutional upbringing

    DEFF Research Database (Denmark)

    Gulløv, Eva

    2008-01-01

    In the chapter, I discuss the role day care institutions play in the construction of the idea of proper childhood in Denmark. Drawing on findings from research on ethnic minority children in two Danish day care institutions, I begin with a discussion of how childcare institutions act as civilising...... agents, empowered with the legitimate right to define and control normality and proper ways of behaving oneself. I aim to show how institutions come to define the normal child and proper childhood in accordance with current efforts toward reinventing national culture, exemplified by legislation requiring...... current testing of Danish language fluency levels among pre-school minority children. Testing language skills marks and defines distinctions that reinforce images of deviance that, in turn, legitimize initiatives to enrol children, specifically minority children, in child care institutions....

  15. Process development for utilizing asbestos cement waste in rotary kilns for the cement industry. Final report; Erarbeitung eines Verfahrens zur stofflichen Verwertung von zementgebundenen Asbestprodukten in Drehrohroefen fuer die Zementindustrie. Abschlussbericht

    Energy Technology Data Exchange (ETDEWEB)

    Schlegel, R.; Kieser, J.; Kraehner, A.

    1999-11-01

    The law for recycling and waste demands the utilization also for waste of asbestos cement (ac). The procedure of thermal utilization of ac in the flame of a rotary cement kiln was developed and patented by the research institute IBU-tec Weimar, Germany. The ac-material has to be pre-pulverized and grinded to a degree of fineness of R{sub 90}<15%. Considerations of safety engineering lead to the idea of common fine grinding of old oil (oo) and ac. This new procedure was searched in FuE-project in 1998/99 (financial support by BMBF). A mash of ac and oo was generated as a utilization product ready for firing which was injected into the flame of the rotary cement kiln. This particles of ac smelt to spherical shaped particles at a temperature above 1500 C. They were utilized by clinker formation. The material and gas stream leaving the kiln does not contain fibres of asbestos. This was demonstrated in a small equipment burning test. The industrial realization concerning cement plant Ruedersdorf, near Berlin, was searched, technologically described and safety engineeringly and financially assessed by a project study. Process-technical and financial advantages were seen for the dry fine grinding. The wet fine grinding with old oil could be used in cement plants using old oil as fuel. (orig.) [German] Das Kreislaufwirtschafts- und Abfallgesetz (1994) fordert u.a. die stoffliche Verwertung auch fuer Asbestzementabfaelle (AZ). Das vom Institut fuer Baustoff- und Umweltschutz-Technologie Weimar 1995 entwickelte und patentierte Verfahren zur thermischen Verwertung von AZ in der Flamme eines Zementdrehrohrofens erfuellt diese Forderung. Das AZ-Material muss vorzerkleinert und bis zur Rohmehlfeinheit (R{sub 90}<15%) feingemahlen werden. Sicherheitstechnische Ueberlegungen fuehrten zu der Idee, die Feinmahlung zusammen mit Altoel (AOe) zu erproben. Diese Verfahrensvariante wurde im Rahmen eines FuE-Projektes 1998/99 untersucht (finanzielle Foerderung durch das BMBF). Als

  16. A DICOM based PACS for nuclear medicine; Ein DICOM-basiertes PACS fuer die Nuklearmedizin

    Energy Technology Data Exchange (ETDEWEB)

    Lassmann, M.; Reiners, C. [Wuerzburg Univ. (Germany). Klinik und Poliklinik fuer Nuklearmedizin

    2002-02-01

    The installation of a radiology information system (RIS) connected to a hospital information system (HIS) and a picture archiving and communications system (PACS) seems mandatory for a nuclear medicine department in order to guarantee a high patient throughput. With these systems a fast transmission of reports, images to the in- and out-patients' wards and private practitioners is realized. Therefore, since April 2000, at the department of nuclear medicine of the university of Wuerzburg a completely DICOM based PACS has been implemented in addition to the RIS. With this system a DICOM based workflow is realized throughout the department of nuclear medicine for reporting and archiving. The PACS is connected to six gamma-cameras, a PET scanner, a bone densitometry system and an ultrasound device. The volume of image data archived per month is 4 GByte. Patient demographics are provided to the modalities via DICOM-Worklist. With these PACS components a department specific archive purely based on DICOM can be realized. During the installation process problems occurred mainly because of the complex DICOM standard for nuclear medicine. Related to that is the problem that most of the software implementations still contain bugs or are not adapted to the needs of a nuclear medicine department (particularly for PET). A communication software for the distribution of nuclear medicine reports and images based on techniques used for the worldwide web is currently tested. (orig.) [German] Fuer eine nuklearmedizinische Klinik ist ein Klinikinformationssystem (KIS) gekoppelt mit einem Radiologieinformationssystem (RIS) sowie einem Bildarchivierungs- und Verteilungssystem (PACS) unabdingbar, um einen schnellen Patientendurchsatz sowie die zeitnahe Uebermittlung von Befunden inklusive nuklearmedizinischen Bildern an zuweisende Stationen, Ambulanzen und externe Zuweiser zu gewaehrleisten. Daher wurde im April 2000 an der Klinik und Poliklinik fuer Nuklearmedizin der Universitaet

  17. A new DEM of the Austfonna ice cap by combining differential SAR interferometry with ICESat laser altimetry

    Directory of Open Access Journals (Sweden)

    Geir Moholdt

    2012-05-01

    Full Text Available We present a new digital elevation model (DEM of the Austfonna ice cap in the Svalbard Archipelago, Norwegian Arctic. Previous DEMs derived from synthetic aperture radar (SAR and optical shape-from-shading have been tied to airborne radio echo-sounding surface profiles from 1983 which contain an elevation-dependent bias of up to several tens of metres compared with recent elevation data. The new and freely available DEM is constructed purely from spaceborne remote sensing data using differential SAR interferometry (DInSAR in combination with ICESat laser altimetry. Interferograms were generated from pairs of SAR scenes from the one-day repeat tandem phase of the European Remote Sensing Satellites 1/2 (ERS-1/2 in 1996. ICESat elevations from winter 2006–08 were used as ground control points to refine the interferometric baseline. The resulting DEM is validated against the same ground control points and independent surface elevation profiles from Global Navigation Satellite Systems (GNSS and airborne laser altimetry, yielding root mean square (RMS errors of about 10 m in all cases. This quality is sufficient for most glaciological applications, and the new DEM will be a baseline data set for ongoing and future research at Austfonna. The technique of combining satellite DInSAR with high-resolution satellite altimetry for DEM generation might also be a good solution in other glacier regions with similar characteristics, especially when data from TanDEM-X and CryoSat-2 become available.

  18. Assessment of neuro-optometric rehabilitation using the Developmental Eye Movement (DEM) test in adults with acquired brain injury.

    Science.gov (United States)

    Kapoor, Neera; Ciuffreda, Kenneth Joseph

    This pilot study sought to determine the efficacy of using the Developmental Eye Movement (DEM) test in the adult, acquired brain injury (ABI) population to quantify clinically the effects of controlled, laboratory-performed, oculomotor-based vision therapy/vision rehabilitation. Nine adult subjects with mild traumatic brain injury (mTBI) and five with stroke were assessed before and after an eight-week, computer-based, versional oculomotor (fixation, saccades, pursuit, and simulated reading) training program (9.6h total). The protocol incorporated a cross-over, interventional design with and without the addition of auditory feedback regarding two-dimensional eye position. The clinical outcome measure was the Developmental Eye Movement (DEM) test score (ratio, errors) taken before, midway, and immediately following training. For the DEM ratio parameter, improvements were found in 80-89% of the subjects. For the DEM error parameter, improvements were found in 100% of the subjects. Incorporation of the auditory feedback component revealed a trend toward enhanced performance. The findings were similar for both DEM parameters, as well as for incorporation of the auditory feedback, in both diagnostic groups. The results of the present study demonstrated considerable improvements in the DEM test scores following the oculomotor-based training, thus reflecting more time-optimal and accurate saccadic tracking after the training. The DEM test should be considered as another clinical test of global saccadic tracking performance in the ABI population. Copyright © 2017 Spanish General Council of Optometry. All rights reserved.

  19. The new German Recycling and Waste management Act (KrWG). Chances and perspectives for the secondary raw materials industry; Das neue Kreislaufwirtschaftsgesetz. Chancen und Perspektiven fuer die Sekundaerrohrstoffwirtschaft

    Energy Technology Data Exchange (ETDEWEB)

    Landers, Burkhard [Bundesverband Sekundaerrohstoffe und Entsorgung e.V. (BVSE), Bonn (Germany)

    2012-11-01

    After long discussions concerning wordings, the new German Act on Recycling and Waste Management (KrWG) came into force with the decision of the arbitration panel of 8 February 2012 and the agreement of the German Bundestag and Bundesrat. It took more than two years from the first draft to the new act, and discussions and lawsuits can be expected to continue. The new act still follows the structure of its predecessor, but private industries, especially medium-sized ones, have not been given sufficient scope for action. Politicians were unable to find a fair balance between private and communal interests. Now, with the introduction of a new standard recycling bin, the legislator is held to take account of the interests of the private waste management industry, whose labour and innovative power made a decisive contribution to the success of waste management and recycling in Germany. (orig.) [German] Der letzte Schlusspunkt ist nach zaehem Ringen um einzelne Formulierungen des Kreislaufwirtschaftsgesetzes (KrWG) mit dem Beschluss des Vermittlungsausschusses am 8. Februar 2012 und mit der anschliessenden Zustimmung des Deutschen Bundestages sowie des Bundesrates gesetzt worden. Damit sind seit dem ersten Arbeitsentwurf des Bundesministeriums fuer die Novellierung des Kreislaufwirtschafts- und Abfallrechts mehr als zwei Jahre vergangen, und es bedarf keiner hellseherischen Faehigkeiten um vorherzusagen, dass die Auseinandersetzung ueber einzelne Bestimmungen und nachrangige Verordnungen des Gesetzes vor Gericht und in der Politik noch lange nicht ihren Abschluss gefunden hat. Trotz aller Diskussionen waehrend des Gesetzgebungsverfahrens sind die wesentlichen Grundstrukturen des alten Kreislaufwirtschafts- und Abfallgesetzes auch im neuen KrWG erhalten geblieben. Der Privatwirtschaft, vor allem in der Breite aus vielen mittelstaendischen Unternehmen bestehend, ist jedoch nicht genuegend Handlungsspielraum gewaehrt worden. Der Politik ist es nicht gelungen, einen fairen

  20. Knowledge from the web. Putting Wikipedia to the test; Wissen aus dem Netz. Wikipedia auf dem Pruefstand

    Energy Technology Data Exchange (ETDEWEB)

    Thieme, Christian [atw Redaktion, Hattingen (Germany)

    2011-02-15

    On January 15, 2011 Wikipedia, the star project of the Web 2.0 Community, celebrated its 10th birthday. Wikipedia has made not only friends over this decade. As a source of knowledge Wikipedia soon became popular among users of the Internet. Educational institutions, however, take a more sceptical view of developments, as they have made students unwilling to conduct literature searches and carefully investigate in all directions available. Students rely 100% on knowledge stored in the Internet without critically observing or examining the information found. To the normal Internet user, however, the encyclopedia reflects the Web 2.0 model. A huge community is engaged in updating and extending knowledge in the database. Moreover, there are no restrictions on taking part in the project. Literally anybody may participate. The subject portals in the ''Technology'' section in Wikipedia contain a ''Nuclear Power'' column. This subject portal is outstanding because of its large number of entries. Information can be found about all areas of nuclear technology, although a real absence of bias is difficult to detect. According to reports, this category of information is characterized by regular skirmishes about the correctness and absence of bias in contents. (orig.)

  1. Energy study 2007 for the German state of Sachsen-Anhalt. Published on behalf of the Minister of Economy and Labour of Sachsen-Anhalt; Energiestudie 2007 fuer das Land Sachsen-Anhalt. Untersuchung im Auftrag des Ministeriums fuer Wirtschaft und Arbeit des Landes Sachsen-Anhalt

    Energy Technology Data Exchange (ETDEWEB)

    Weber, A.

    2007-06-15

    The current energy concept of Sachsen-Anhalt dates back to 2004. Since then, boundary conditions have changed. International energy markets are characterized by growing demand and rising energy prices. This has influenced Germany as well. Further, sustainable power supply and global climate change have become relevant issues during the past few years. Against this background, Sachsen-Anhalt intends to modify its energy concept. The first step will be the provision of a current information and data base on all aspects of world, national and state energy supply and all relevant boundary conditions. The 'Energiestudie 2007' was prepared by Institut fuer Energetik und Umwelt gGmbH. The contents are based on current studies and investigations. The 'Energiestudie' will provide an information base which may be maintained and updated by actors of Sachsen-Anhalt. (orig.)

  2. Institutional actorhood

    DEFF Research Database (Denmark)

    Madsen, Christian Uhrenholdt

    In this paper I describe the changing role of intra-organizational experts in the face of institutional complexity of their field. I do this through a qualitative investigation of the institutional and organizational roles of actors in Danish organizations who are responsible for the efforts...... to comply with the Danish work environment regulation. And by doing so I also describe how institutional complexity and organizational responses to this complexity are particular important for the changing modes of governance that characterizes contemporary welfare states....

  3. Mobilization of PAH by synthetic gastrointestinal juice from contaminated soil of a former landfill area; Mobilisierung von PAK durch synthetische Verdauungssaefte aus dem kontaminierten Bodenmaterial einer Altlastenflaeche

    Energy Technology Data Exchange (ETDEWEB)

    Hack, A.; Selenka, F.; Wilhelm, M. [Bochum Univ. (Germany). Abt. fuer Hygiene, Sozial- und Umweltmedizin

    1998-10-01

    In the present study, the amount of polycyclic aromatic hydrocarbons (PAH) in contaminated soil material, which may be available for absorption in the gastrointestinal tract, is estimated by means of evaluating the PAH mobilization by synthetic gastric and intestinal juice in an in vitro test system. Five contaminated soil materials from a former landfill site are analysed in this gastrointestinal model for the PAH of the U.S.EPA-standard. For quantification, an HPLC method with reversed-phase chromatography and on line fluorescence detection is used. The PAH concentration of the contaminated soil materials ranged from 37 {mu}g/g up to 196 {mu}g/g in total. The mobilization of the PAH in the gastrointestinal model ranged from 0.3% up to 1.3% when gastrointestinal juice was used alone. In the presence of whole milk powder, however, the mobilization was enhanced to values from 10.8% up to 14.5%. Since the soil material was taken from different parts of the contaminated area, and since the mobilization of the PAH from the different materials shows only minor differences, the mobilization data evaluated may be considered as representative for the whole contaminated area. Compared to other contaminated soil materials, especially those from gas work areas or coke plants, the mobilization rate of PAH by the gastrointestinal model from the soil materials used in this study is low. The health risk caused, by ingestion of this soil material, as far as PAH are concerned, is actually smaller than the risk calculated from the total content of PAH of the contaminated soil. (orig.) [Deutsch] Im allgemeinen wird nur ein Teil der Schadstoffe aus oral aufgenommenem kontaminiertem Bodenmaterial im Gastrointestinaltrakt resorbiert. In der vorliegenden Studie wird der resorptionsverfuegbare Anteil der PAK aus dem real kontaminierten Bodenmaterial einer ehemaligen Deponie aus dem sueddeutschen Raum anhand der Mobilisierbarkeit der PAK durch die Verdauungssaefte des oberen

  4. Institutional Investors

    DEFF Research Database (Denmark)

    Birkmose, Hanne Søndergaard; Strand, Therese

    Research Question/Issue: Institutional investors are facing increased pressure and threats of legislation from the European Union to abandon passive ownership strategies. This study investigates the prerequisites for – and potential dissimilarities in the practice of, active ownership among...... institutional investors in two Scandinavian countries with diminutive legal and cultural distance in general. Research Findings/Insights: Using data on shareholder proposals from Danish and Swedish annual general meetings from 2006 throughout 2010, we find that institutional investors are approximately....../Policy Implications: Regulators should be aware of the impact by local governance mechanisms, and how shareholders react under different legal and practical prerequisites. The paper also highlights legal elements that differ between Denmark and Sweden, and which might affect institutional activism....

  5. Institutional Controls

    Data.gov (United States)

    U.S. Environmental Protection Agency — This dataset consists of institutional control data from multiple Superfund sites in U.S. EPA Region 8. These data were acquired from multiple sources at different...

  6. Institutional Assessment

    International Development Research Centre (IDRC) Digital Library (Canada)

    Many approaches can and have helped research institutions in the developing .... There are many good texts on project and program evaluation, not to ...... has challenged managers and students of organizational development for decades.

  7. Solar building construction - new technologies; Solares Bauen - Neue Technologien fuer Gebaeude

    Energy Technology Data Exchange (ETDEWEB)

    Luther, J.; Voss, K.; Wittwer, V. [Fraunhofer-Inst. fuer Solare Energiesysteme, Freiburg (Germany). Abt. ``Thermische und Optische Systeme``

    1998-02-01

    There is an increasing demand for integrated building concepts in order to reduce energy consumption. Building design, construction and heating, ventilation and air-conditioning (HVAC) technology are decisive in this respect. Thus, an essentially higher energy efficiency is achieved and solar energy becomes the main energy source. An `active building envelope` assumes the task of controlling the energy flows between inside and outside. This paper reports on new components, system concepts and planning tools for solar building. (orig.) [Deutsch] Fuer zukuenftige Bauten werden in hohem Masse Forderungen nach integrierten Konzepten zur Begrenzung des Energieverbrauchs gestellt. Gestalt, Konstruktion und Klimatechnik sind dabei massgebliche Einflussfaktoren. Hierdurch wird eine wesentlich hoehere Energieeffizienz erzielt und Solarenergie kann die uebrigen Energiequellen zurueckdraengen. Eine `aktive Gebaeudehuelle` uebernimmt die Aufgabe, den Energiefluss zwischen Innen und Aussen zu steuern. Der Beitrag berichtet ueber neue Komponenten, Systemkonzepte und Planungswerkzeuge fuer das Solare Bauen. (orig.)

  8. Dimensioning and design rules for sliding bearings; optimisation problems; Bemessungs- und Gestaltungsregeln fuer Gleitlager: Optimierungsfragen

    Energy Technology Data Exchange (ETDEWEB)

    Spiegel, K. [Fachhochschule Duesseldorf (Germany); Fricke, J.

    2000-07-01

    Already in the design stage of sliding bearings, optimal conditions for operation at a later stage should be envisaged. The contribution presents hints for optimal design and calculation of radial and axial bearings, e.g. gap design, optimised supporting strength, friction loss and lubricant throughput, lubricant exchange and lubricant heat exchange, and improved control of internal lubricant flow. [German] Bei der Auslegung von Gleitlagern ist es von Interesse, moeglichst optimale Bedingungen fuer den spaeteren Betrieb zu schaffen. Im vorliegenden Beitrag werden einige bereits bekannte und auch neue Hinweise zur optimalen Gestaltung und Berechnung, sowohl fuer Radial- als auch Axiallager gegeben. Dies betreffen im wesentlichen: die Gestaltung des Spaltverlaufs, Empfehlungen zur Optimierung der Tragfaehigkeit, der Reibungsverluste und des Schmierstoffdurchsatzes, Hinweise zum Schmierstoff- bzw. Schmierstoff-Waermeaustausch und die Verbesserung der inneren Schmierstofffuehrung. (orig.)

  9. The Environmental Impact Assessment (EIA) for high-voltage overhead lines; Umweltvertraeglichkeitspruefung (UVP) fuer Hochspannungsfreileitungen

    Energy Technology Data Exchange (ETDEWEB)

    Klockow, S. [Landesentwicklungsgesellschaft Baden-Wuerttemberg, Stuttgart (Germany). Abt. Umwelt

    1996-11-04

    In some of the federal states of Germany the licensing of new or the laying or existing high-voltage overhead lines requires an environmental impact assessment. For many utility companies, however, environmental impact assessments for high-voltage lines are virgin territory. Experience shows that preparing the documentation is not a major problem. Questions usually arise over details such as the calculation of possible incidents or the comparison of different layouts. The authors describes general approaches and strategies and looks at specific problems. (orig.) [Deutsch] Bei der Genehmigung neuer oder der Verlegung vorhandener Hochspannungsfreileitungen ist in einigen Bundeslaendern eine Umweltvertraeglichkeitspruefung durchzufuehren. Fuer viele Energieversorgungsunternehmen ist die Erarbeitung von Umweltvertraeglichkeitsstudien fuer Hochspannungsleitungen aber noch Neuland. Praxiserfahrungen zeigen, dass die Erarbeitung der erforderlichen Unterlagen ohne groessere Schwierigkeiten moeglich ist. Fragen ergeben sich dabei aber bei speziellen Details, z.B. bei der Betrachtung von moeglichen Stoerfaellen oder beim Vergleich von Trassenvarianten. Der Verfasser skizziert das allgemeine Vorgehen und erlaeutert ausfuehrlich die Detailprobleme. (orig.)

  10. Micromechanics of non-active clays in saturated state and DEM modelling

    Directory of Open Access Journals (Sweden)

    Pagano Arianna Gea

    2017-01-01

    Full Text Available The paper presents a conceptual micromechanical model for 1-D compression behaviour of non-active clays in saturated state. An experimental investigation was carried out on kaolin clay samples saturated with fluids of different pH and dielectric permittivity. The effect of pore fluid characteristics on one-dimensional compressibility behaviour of kaolin was investigated. A three dimensional Discrete Element Method (DEM was implemented in order to simulate the response of saturated kaolin observed during the experiments. A complex contact model was introduced, considering both the mechanical and physico-chemical microscopic interactions between clay particles. A simple analysis with spherical particles only was performed as a preliminary step in the DEM study in the elastic regime.

  11. Study of the electrooxidation of ethanol on hydrophobic electrodes by DEMS and HPLC

    International Nuclear Information System (INIS)

    Gonzalez Pereira, M.; Davila Jimenez, M.; Elizalde, M.P.; Manzo-Robledo, A.; Alonso-Vante, N.

    2004-01-01

    The electrochemical oxidation of ethanol in alkaline solution has been studied on Cu-PVC electrode and Ni/Cu-PVC composite electrodes modified by ruthenium nanoparticles. The techniques used were cyclic voltammetry (CV), steady-state potentiostatic method, on line differential electrochemical mass spectrometry (DEMS), and high-performance liquid chromatography (HPLC). The chemical products: acetaldehyde and acetic acid were detected measuring the proper mass charge (m/z) ratios. These products were also confirmed by HPLC. The surface modification of composite electrodes by ruthenium nanoparticles promotes the formation of acetaldehyde. As shown by DEMS, the surface modification shifts the onset potential for oxygen evolution reaction on the Cu-PVC composite electrode towards more anodic values

  12. Radiosurgery with the gamma knife; Radiochirurgie mit dem Gamma-Knife

    Energy Technology Data Exchange (ETDEWEB)

    Wowra, B.; Reulen, H.J.

    1996-05-10

    Radiosurgery is a novel modality introduced by the neurosurgeon Lars Leksell. For the most important lesions, (arteriovenous angiomas, benign tumors in the base of the skull, formation of metastases in the brain), radiosurgery is a valuable additional tool in the range of therapies available to the benefit of patients. The gamma knife has been gaining a leading rank in the range of therapies applied in Germany. (orig.) [Deutsch] Radiochirurgie ist ein neues, von dem Neurochirurgen Lars Leksell konzipiertes Prinzip. Bei den wichtigsten Indikationen (arteriovenoese Angiome, gutartige Tumoren der Schaedelbasis, Hirnmetastasen etc.) bereichert und ergaenzt die Radiochirurgie das therapeutische Arsenal der Neurochirurgie zum Vorteil der Patienten betraechtlich. Dem Gamma-Knife kommt jetzt auch in Deutschland ein prominenter Platz unter den verschiedenen radiochirurgischen Verfahren zu. (orig.)

  13. Doppler Centroid Estimation for Airborne SAR Supported by POS and DEM

    Directory of Open Access Journals (Sweden)

    CHENG Chunquan

    2015-05-01

    Full Text Available It is difficult to estimate the Doppler frequency and modulating rate for airborne SAR by using traditional vector method due to instable flight and complex terrain. In this paper, it is qualitatively analyzed that the impacts of POS, DEM and their errors on airborne SAR Doppler parameters. Then an innovative vector method is presented based on the range-coplanarity equation to estimate the Doppler centroid taking the POS and DEM as auxiliary data. The effectiveness of the proposed method is validated and analyzed via the simulation experiments. The theoretical analysis and experimental results show that the method can be used to estimate the Doppler centroid with high accuracy even in the cases of high relief, instable flight, and large squint SAR.

  14. Effect of particle breakage on cyclic densification of ballast: A DEM approach

    International Nuclear Information System (INIS)

    Thakur, P K; Vinod, J S; Indraratna, B

    2010-01-01

    In this paper, an attempt has been made to investigate the effect of particle breakage on densification behaviour of ballast under cyclic loading using Discrete Element Method (DEM). Numerical simulations using PFC 2D have been carried out on an assembly of angular particles with and without incorporation of particle breakage. Two-dimensional projection of angular ballast particles were simulated using clusters of bonded circular particles. Degradation of the bonds within a cluster was considered to represent particle breakage. Clump logic was used to make the cluster of particles unbreakable. DEM simulation results highlight that the particle breakage has a profound influence on the cyclic densification behaviour of ballast. The deformation behaviour exhibited by the assembly with breakage is in good agreement with the laboratory experiments. In addition, the evolution of particle displacement vectors clearly explains the breakage mechanism and associated deformations during cyclic loading.

  15. Numerical modelling of powder caking at REV scale by using DEM

    Science.gov (United States)

    Guessasma, Mohamed; Silva Tavares, Homayra; Afrassiabian, Zahra; Saleh, Khashayar

    2017-06-01

    This work deals with numerical simulation of powder caking process caused by capillary condensation phenomenon. Caking consists in unwanted agglomeration of powder particles. This process is often irreversible and not easy to predict. To reproduce mechanism involved by caking phenomenon we have used the Discrete Elements Method (DEM). In the present work, we mainly focus on the role of capillary condensation and subsequent liquid bridge formation within a granular medium exposed to fluctuations of ambient relative humidity. Such bridges cause an attractive force between particles, leading to the formation of a cake with intrinsic physicochemical and mechanical properties. By considering a Representative Elementary Volume (REV), the DEM is then performed by means of a MULTICOR-3D software tacking into account the properties of the cake (degree of saturation) in order to establish relationships between the microscopic parameters and the macroscopic behaviour (tensile strength).

  16. Numerical modelling of powder caking at REV scale by using DEM

    Directory of Open Access Journals (Sweden)

    Guessasma Mohamed

    2017-01-01

    Full Text Available This work deals with numerical simulation of powder caking process caused by capillary condensation phenomenon. Caking consists in unwanted agglomeration of powder particles. This process is often irreversible and not easy to predict. To reproduce mechanism involved by caking phenomenon we have used the Discrete Elements Method (DEM. In the present work, we mainly focus on the role of capillary condensation and subsequent liquid bridge formation within a granular medium exposed to fluctuations of ambient relative humidity. Such bridges cause an attractive force between particles, leading to the formation of a cake with intrinsic physicochemical and mechanical properties. By considering a Representative Elementary Volume (REV, the DEM is then performed by means of a MULTICOR-3D software tacking into account the properties of the cake (degree of saturation in order to establish relationships between the microscopic parameters and the macroscopic behaviour (tensile strength.

  17. Study of the electrooxidation of ethanol on hydrophobic electrodes by DEMS and HPLC

    Energy Technology Data Exchange (ETDEWEB)

    Gonzalez Pereira, M.; Davila Jimenez, M.; Elizalde, M.P.; Manzo-Robledo, A.; Alonso-Vante, N

    2004-09-15

    The electrochemical oxidation of ethanol in alkaline solution has been studied on Cu-PVC electrode and Ni/Cu-PVC composite electrodes modified by ruthenium nanoparticles. The techniques used were cyclic voltammetry (CV), steady-state potentiostatic method, on line differential electrochemical mass spectrometry (DEMS), and high-performance liquid chromatography (HPLC). The chemical products: acetaldehyde and acetic acid were detected measuring the proper mass charge (m/z) ratios. These products were also confirmed by HPLC. The surface modification of composite electrodes by ruthenium nanoparticles promotes the formation of acetaldehyde. As shown by DEMS, the surface modification shifts the onset potential for oxygen evolution reaction on the Cu-PVC composite electrode towards more anodic values.

  18. Production of 17-O-demethyl-geldanamycin, a cytotoxic ansamycin polyketide, by Streptomyces hygroscopicus DEM20745.

    Science.gov (United States)

    Baksh, Aron; Kepplinger, Bernhard; Isah, Hadiza A; Probert, Michael R; Clegg, William; Wills, Corinne; Goodfellow, Michael; Errington, Jeff; Allenby, Nick; Hall, Michael J

    2017-08-01

    The actinomycete DEM20745, collected from non-rhizosphere soil adjacent to Paraserianthes falactaria trees (Cangkringan, Indonesia), is an efficient producer of the anticancer ansamycin polyketide 17-O-demethyl-geldanamycin (17-O-DMG), a biosynthetic precursor of the Hsp90 inhibitor geldanamycin (GDM). In DEM20745, 17-O-DMG is the major ansamycin product observed reaching a maximum titre of 17 mg/L in the fermentation broth. 17-O-DMG has the potential to be a key starting material for the semi-synthesis of GDM analogues for use in anticancer therapy. Thus, this preferential biosynthesis of 17-O-DMG facilitates easy access to this important molecule and provides further insight in the biosynthesis of the geldanamycins.

  19. Innovative inspection system for reactor pressure vessels; Innovative Pruefsysteme fuer Reaktordruckbehaelter

    Energy Technology Data Exchange (ETDEWEB)

    Mertens, K.; Trautmann, H.

    1999-08-01

    The versatile, compact and modern underwater systems described, the DELPHIN manipulators and MIDAS submarines, are innovative systems enabling RPV inspections at considerably reduced efforts and time, thus reducing the total time required for ISI of reactors. (orig./CB) [Deutsch] Die vorgestellten kleinen, flexiblen und modernen Schwimmsysteme (DELPHIN-Manipulatoren und MIDAS-U-Boote) sind innovative Systeme fuer die Reduzierung der Aufwaende und Zeit zur Pruefung des Reaktordruckbehaelters und damit zur Reduktion der Revisionszeiten der Reaktoranlagen. (orig.)

  20. Use of process observers at sewage treatment plants; Einsatz von Prozessbeobachtern fuer Klaeranlagen

    Energy Technology Data Exchange (ETDEWEB)

    Jumar, U.; Alex, J. [Institut fuer Kommunikation und Automation e.V. Magdeburg (IFAK), Barleben (Germany); Rosenwinkel, K.H.; Obenaus, F. [Hannover Univ. (Germany). Inst. fuer Siedlungswasserwirtschaft und Abfalltechnik

    1999-07-01

    The paper describes the use of online simulation for prognosticating plant behaviour, training plant operators, and for obtaining state data not to be obtained otherwise. Whereas, for the mathematical modelling of the process, the established approaches Activated Sludge Model (ASM) 1 and 2 could be reverted to, new methodics needed to be developed for continuous model tracking in order to solve the conflict between a large number of parameters in the model and scarce online measuring data on the spot. The result is a practicable solution which harnesses available knowledge concerning the significance of suitable parameters for model adaptation. First of all, essential demands on and objectives of a process observer for sewage treatment plants are elaborated. Then a software system is described with reference to successful pilot installations which permits model-based process control and remote monitoring of sewage treatment plant. (orig.) [German] Der Beitrag beschreibt die Nutzung der Online-Simulation fuer die Prognose des Anlagenverhaltens, das Training der Anlagenfahrer und die Gewinnung ansonsten nicht messbarer Zustandsinformationen. Waehrend fuer die mathematische Modellierung des Prozesses auf die etablierten Ansaetze ASM 1 und 2 (Activated Sludge Model) zurueckgegriffen werden konnte, musste fuer die laufende Modellnachfuehrung eine neue Methodik entwickelt werden, um den Konflikt zwischen grosser Parameteranzahl im Modell und geringer Online-Messinformation vor Ort zu loesen. Das Ergebnis ist eine praktikable Loesung, die das vorhandene Wissen um die Signifikanz zur Modellanpassung geeigneter Parameter ausnutzt. In den folgenden Ausfuehrungen werden zunaechst wesentliche Anforderungen und Zielstellungen eines Prozessbeobachters fuer Klaeranlagen herausgearbeitet. Unter Bezugnahme auf erfolgreiche Pilotinstallationen wird anschliessend ein Software-System vorgestellt, das eine modellgestuetzte Betriebsfuehrung und Fernueberwachung von Klaeranlagen