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Sample records for elbe teilbericht zum

  1. Biogeochemical investigations on processes affecting the transport behaviour of trace elements in the tidal Elbe River; Biogeochemische Prozessuntersuchungen zum Transportverhalten von Spurenelementen in der Tide-Elbe

    Energy Technology Data Exchange (ETDEWEB)

    Hennies, K. [GKSS-Forschungszentrum Geesthacht GmbH (Germany). Inst. fuer Gewaesserphysik

    1997-12-31

    This work concentrates on distribution and transport of micropollutants in anthropogenically affected estuary systems. Choosing the tidal Elbe River as an example, the influence of microlagae on two important partial processes of the transport regime, the remobilization (a) from undisturbed sediments and (b) from suspended particulate matter, was simulated and quantified in the laboratory. Benthic and planktonic release of Cd, Cu, Pb and Zn into the dissolved phase of the river pelagial were estimated and comparatively evaluated for summer/late summer situation. During that season natural decomposition of suspended particulate matter in the water column thus represents the quantitatively most significant mobilization pathway for particle bound heavy metals in the river section between Hamburg and Glueckstadt. Knowing the composition and heavy metal load of suspended particulate matter, rich in algae, mobilization rates can consequently be calculated for the water column with regard to conditions typical for estuaries. The prognosis of the differing transport behaviour of single heavy metals for greater sections of estuaries is also possible if these rates are implemented into transport-reaction models. (orig.) [Deutsch] Die vorliegende Arbeit befasst sich mit Verteilung und Transport von Spurenschadstoffen in anthropogen belasteten Aestuarsystemen. Am Beispiel der Tide-Elbe wurde der Einfluss von Mikroalgen auf zwei wichtige Teilprozesse des Transportregimes, die Remobilisierung (a) aus ungestoerten Sedimenten und (b) aus suspendierten Schwebstoffen, im Labor simuliert und quantifiziert. Benthische und planktische Freisetzung von Cd, Cu, Pb und Zn in die Loesungsphase des Flusspelagials der Tide-Elbe wurden fuer die Sommer-/Spaetsommer-Situation abgeschaetzt und vergleichend bewertet. Der natuerliche Schwebstoff-Abbau in der Wassersaeule stellt demnach in dieser Jahreszeit im Stromabschnitt zwischen Hamburg und Glueckstadt den quantitativ bedeutsamsten

  2. Biogeochemical investigations on processes affecting the transport behaviour of trace elements in the tidal Elbe River; Biogeochemische Prozessuntersuchungen zum Transportverhalten von Spurenelementen in der Tide-Elbe

    Energy Technology Data Exchange (ETDEWEB)

    Hennies, K [GKSS-Forschungszentrum Geesthacht GmbH (Germany). Inst. fuer Gewaesserphysik

    1998-12-31

    This work concentrates on distribution and transport of micropollutants in anthropogenically affected estuary systems. Choosing the tidal Elbe River as an example, the influence of microlagae on two important partial processes of the transport regime, the remobilization (a) from undisturbed sediments and (b) from suspended particulate matter, was simulated and quantified in the laboratory. Benthic and planktonic release of Cd, Cu, Pb and Zn into the dissolved phase of the river pelagial were estimated and comparatively evaluated for summer/late summer situation. During that season natural decomposition of suspended particulate matter in the water column thus represents the quantitatively most significant mobilization pathway for particle bound heavy metals in the river section between Hamburg and Glueckstadt. Knowing the composition and heavy metal load of suspended particulate matter, rich in algae, mobilization rates can consequently be calculated for the water column with regard to conditions typical for estuaries. The prognosis of the differing transport behaviour of single heavy metals for greater sections of estuaries is also possible if these rates are implemented into transport-reaction models. (orig.) [Deutsch] Die vorliegende Arbeit befasst sich mit Verteilung und Transport von Spurenschadstoffen in anthropogen belasteten Aestuarsystemen. Am Beispiel der Tide-Elbe wurde der Einfluss von Mikroalgen auf zwei wichtige Teilprozesse des Transportregimes, die Remobilisierung (a) aus ungestoerten Sedimenten und (b) aus suspendierten Schwebstoffen, im Labor simuliert und quantifiziert. Benthische und planktische Freisetzung von Cd, Cu, Pb und Zn in die Loesungsphase des Flusspelagials der Tide-Elbe wurden fuer die Sommer-/Spaetsommer-Situation abgeschaetzt und vergleichend bewertet. Der natuerliche Schwebstoff-Abbau in der Wassersaeule stellt demnach in dieser Jahreszeit im Stromabschnitt zwischen Hamburg und Glueckstadt den quantitativ bedeutsamsten

  3. Water winning in aquifers in the catchment area of the Elbe river. Task report no. 5: Radon applied for characterisation of geohydraulic processes; Wassergewinnung in Talgrundwasserleitern im Einzugsgebiet der Elbe. Teilbericht zum Thema Nr. 5: Radon zur Charakterisierung geohydraulischer Prozesse

    Energy Technology Data Exchange (ETDEWEB)

    Dehnert, J.; Nestler, W. [Hochschule fuer Technik und Wirtschaft, Dresden (Germany). Lab. fuer Geotechnik und Wasserwesen; Freyer, K.; Treutler, H.C. [UFZ - Umweltforschungszentrum Leipzig-Halle GmbH, Leipzig (Germany). Sektion Analytik

    1998-06-09

    The work performed has two objectives. The first is to test a new method for determination of optimal volumes of pumped groundwater samples at official sampling and measuring sites, in order to significantly enhance the level of representativity of groundwater samples. The second is to establish information about the required framework conditions which enable natural radon activity concentrations in river bank filtrates to be used for determination of residence times or infiltration velocities, respectively, of infiltration from surface waters to aquifers. Aspects of required equipment and instrumentation for both objectives are explained in the report. (orig./CB) [Deutsch] Mit dieser Arbeit werden zwei Ziele verfolgt. Mit dem neuen Verfahren zur Bestimmung optimaler Abpumpvolumen von Grundwassermessstellen soll die Repraesentativitaet von Grundwasserproben bei der Probennahme deutlich verbessert werden. Das zweite Ziel besteht in der Untersuchung der Voraussetzungen, unter denen die natuerliche Radonaktivitaetskonzentration des Uferfiltrats zur Bestimmung von Aufenthaltszeiten bzw. Infiltrationsgeschwindigkeiten von infiltriertem Oberflaechenwasser in Talgrundwasserleitern genutzt werden kann. Fuer beide Zielstellungen werden Moeglichkeiten fuer eine geraetetechnische Umsetzung aufgezeigt. (orig.)

  4. Particle Reduction Strategies - PAREST. A meteorology comparision for better understanding of different pollutant concentration simulations with different chemistry transport models. Sub-report; Strategien zur Verminderung der Feinstaubbelastung - PAREST. Ein Meteorologievergleich zum besseren Verstaendnis der unterschiedlichen Schadstoffkonzentrationssimulationen mit verschiedenen Chemie-Transport-Modellen. Teilbericht

    Energy Technology Data Exchange (ETDEWEB)

    Kerschbaumer, Andreas [Freie Univ. Berlin (Germany). Inst. fuer Meteorologie, Troposphaerische Umweltforschung

    2013-06-15

    In this study, input variables for chemical transport models were compared from different meteorological drivers each with other and with the measured friction velocities in one place. Friction velocities are used as a measure of the mechanical turbulence, but are made available neither by numerical weather models nor routinely available observations: so they must either recalculate or estimated. In this study, friction velocities (u{sup *}), which is measured for years by the DWD in Lindenberg near Berlin, averaged over 30 minutes and have been made available to FU Berlin, compared with modeled values. The considered models are firstly the diagnostic interpolation model TRAMPER, on the other the prognostic models of the DWD COSMO-EU and the EZMWF. The boundary layer relevant parameters from the NWM were recalculated from the involved groups, which has been made for the COSMO-EU the one from the FU Berlin, the other from IfT in Leipzig. The boundary layer variables in the EZMWF model, however, were determined by TNO Netherlands. The measurements have shown that u{sup *} in the forest twice as high as above the meadow. [German] In dieser Studie wurden Eingangsvariablen fuer Chemie-Transport-Modelle aus verschiedenen meteorologischen Treibern miteinander und mit an einem Ort gemessenen Schubspannungsgeschwindigkeiten verglichen. Schubspannungsgeschwindigkeiten werden als Mass fuer die mechanische Turbulenz benutzt, werden aber weder von numerischen Wettermodellen noch routinemaessig von Beobachtungen zur Verfuegung gestellt: sie muessen also entweder nachgerechnet oder abgeschaetzt werden. In dieser Arbeit wurden Schubspannungsgeschwindigkeiten (u{sup *}), die vom DWD in Lindenberg bei Berlin ueber Jahre gemessen, gemittelt ueber 30 Minuten, und der FUBerlin zur Verfuegung gestellt worden sind, mit modellierten Werten verglichen. Die beruecksichtigten Modelle sind zum einen das diagnostische Interpolationsmodell TRAMPER, zum anderen die prognostischen Modelle des DWD

  5. Radioecological studies on the Elbe

    International Nuclear Information System (INIS)

    Feldt, W.; Kanisch, G.; Kellermann, H.J.; Nagel, G.; Vobach, M.

    1990-01-01

    The effluents from nuclear power plants situated on the banks of the Elbe (Stade, Brokdorf, Kruemmel) has not contributed to any measurable degree to an increase in the environmental radioactivity. In the upper Elbe regions, such incrases have chiefly been attributable to fallout from nuclear weapons and, in recent years, radioactive fallout of the Chernobyl power plant. In the lower Elbe, brackish waters and estuary, however, the effect of added radioactivity from the nuclear reprocessing plants of Sellafield and La Hague is making itself evident. This was confirmed by large-scale studies using water, fish, sestone and sediment samples that were examined for their individual contents of radioactivity. If one considers the degree of exposure to naturally occurring radioactivity, radioactive exposure of the population on account of nuclear power stations must be judged as being within the negligible range. (DG) [de

  6. 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

  7. Cellular Electronic Logbook cELB Database

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The ELB program provides data on Gulf shrimp fishing effort that is critical to the Gulf of Mexico Fishery Management Council (Council) and NOAA Fisheries in...

  8. Development and adaptation of the ELBIS Elbe river information system into a water quality information system of the ARGE-ELBE working group. Final report; Entwicklung und Anpassung des Elbeinformationssystems ELBIS fuer ein Gewaessergueteinformationssystem der ARGE-ELBE. Abschlussbericht

    Energy Technology Data Exchange (ETDEWEB)

    Frank, B.; Prange, A.

    2001-07-01

    The geo-information system ELBIS was installed in mid-November 2000 to provide information on the web on Elbe water quality and other information. It presents the current results of the national Elbe monitoring programme of the ARGE Elbe working group, as well as the results of the 'Elbe 2000' programme of the nineties. [German] Das Geo-Informationssystem ELBIS informiert seit November 2000 im Internet ueber die Wasserqualitaet und verwandte Elbe-Themen. Mittels einer geografischen Oberflaeche stellt es die fortlaufenden, aktuellen Ergebnisse der nationalen Elbe-Messprogramme der ARGE Elbe (Arbeitsgemeinschaft fuer die Reinhaltung der Elbe) dar sowie Forschungsdaten aus der 'Elbe 2000'-Schadstoffforschung der neunziger Jahre. Auf einfache und zeitgemaesse Weise macht ELBIS diese Ergebnisse der interessierten Oeffentlichkeit zugaenglich und bietet Fachleuten einen umfassenden Ueberblick ueber die Datenlage. (orig.)

  9. Beam Loss Detection at Radiation Source ELBE

    CERN Document Server

    Michel, P; Schurig, R; Langenhagen, H

    2003-01-01

    The Rossendorf superconducting Electron Linac of high Brilliance and low Emittance (ELBE) delivers an 40 MeV, 1 mA cw-beam for different applications such as bremsstrahlung production, electron channelling, free-electron lasers or secondary particle beam generation. In this energy region in case of collisions of the electron beam with the pipe nearly all beam power will be deposited into the pipe material. Therefore a reliable beam loss monitoring is essential for machine protection at ELBE. Different systems basing on photo multipliers, compton diodes and long ionization chambers were studied. The pros and cons of the different systems will be discussed. Ionization chambers based on air-isolated RF cables installed some cm away parallel to the beam line turned out to be the optimal solution. The beam shut-off threshold was adjusted to 1 μC integral charge loss during a 100 ms time interval. Due to the favourable geometry the monitor sensitivity varies less than ±50% along the beam line (di...

  10. ELBE Center for High-Power Radiation Sources

    Directory of Open Access Journals (Sweden)

    Peter Dr. Michel

    2016-01-01

    Full Text Available In the ELBE Center for High-Power Radiation Sources, the superconducting linear electron accelerator ELBE, serving  two free electron lasers, sources for intense coherent THz radiation, mono-energetic positrons, electrons, γ-rays, a neutron time-of-flight system as well as two synchronized ultra-short pulsed Petawatt laser systems are collocated. The characteristics of these beams make the ELBE center a unique research instrument for a variety of external users in fields ranging from material science over nuclear physics to cancer research, as well as scientists of the Helmholtz-Zentrum Dresden-Rossendorf (HZDR.

  11. Water quality data of the Elbe from Schnackenburg to the Sea

    International Nuclear Information System (INIS)

    1992-08-01

    The working pool for pollution control of the Elbe of the states Hamburg, Lower Saxony and Schleswig-Holstein (ARGE ELBE) published in its annual reports 'water quality data of the Elbe' results of water quality analyses carried out within the scope of the joint ARGE ELBE measuring program in the section of the Elbe from Schnackenburg to the North Sea including the lower reaches of tributaries of the Elbe. The documentation of measuring data in numerical tables is aligned with the needs of specialized offices of the states and the government as well as of research and university institutes. (orig.) [de

  12. Handbuch der Forschung zum Lehrerberuf

    CERN Document Server

    Bennewitz, Hedda; Rothland, Martin

    2014-01-01

    Die große Bedeutung, die dem Lehrerberuf in der Öffentlichkeit, aber auch in den Bildungswissenschaften für die Qualität von Schule und Unterricht zugemessen wird, stand bislang in deutlichem Kontrast zu Umfang und Intensität der Forschung, die auf den Lehrerberuf gerichtet war. Diese immer wieder beklagte Situation hat sich jedoch gewandelt. Seit etwa einem Jahrzehnt ist eine deutliche Intensivierung und allmähliche Verstetigung der Forschung zum Lehrerberuf zu beobachten. Mit dem vorliegenden Handbuch wird erstmalig eine repräsentative Übersicht über den aktuellen Stand der Forschung zum Lehrerberuf vermittelt. Unter intensiver Berücksichtigung der internationalen Fachdiskussion informieren die 45 Beiträge des Handbuchs über Forschung zu folgenden Themenfeldern: Geschichte des Lehrerberufs, Charakteristika und Rahmenbedingungen des Lehrerberufs, Konzepte der Forschung zum Lehrerberuf, Berufsbiographien von Lehrerinnen und Lehrern, Lehrerbildung, Kognitionen, Emotionen und Kompetenzen von Lehrern...

  13. Non biodegradable and weakly adsorbing substances in the river Elbe

    International Nuclear Information System (INIS)

    Mueller, U.; Wricke, B.; Sontheimer, H.

    1993-01-01

    The quality of the river Elbe in East Germany has been investigated in a research project subsidized by the German minstry of research and technology, iwth respect to drinking water quality and treatment using laboratory methods similar to the treatment processes in waterworks. The experiments included analysis of sum- and group-parameters before and after biological degradation and a study of adsorption on activated carbon. Comparing these results with data already published from the river Rhine in West Germany, the water of the river Elbe showed approximately double the concentration of dissolved organic carbon (DOC), absorbable organic halogen (AOX) and ion-pair-extractable organic sulphur (IOS). Mathematical models have been used to obtain further information from these measurements about the origin of the organic substances in the river Elbe. As a consequence, an important part of the relatively high DOC-concentration in the Elbe-river is due to natural humic substances. Therefore the operation of better waste water treatment plants along the elbe-river might reduce the concentration of organic halogen and sulphur substances in particular, whereas the concentration of DOC will decrease only slightly in the future. (orig.) [de

  14. Performance of the ELBE BPM Electronics

    CERN Document Server

    Evtushenko, P

    2003-01-01

    The ELBE radiation source is based on a superconducting linac. Initially it was designed to be used in CW mode with repetition rates either 13 MHz either 260 MHz. Later it was decided to operate the accelerator with reduced repetition rates for diagnostic reasons and for certain users. Now it is possible to operate at repetition rate 13/n MHz, where n can be 2, 4, 8, 16, 32, 64, and 128. It is required that the BPM system supports any of these operation modes. A core element of the BPM electronics is a logarithmic amplifier AD8313 made by Analog Devices Inc. The logarithmic amplifier is a direct RF to DC converter rated up to 2.5 GHz. Initial design of the BPM electronic was sophisticated only for CW operation with repetition rate more than 10 MHz, since bandwidth of the AD8313 is about of 10 MHz. Additionally a sample and hold amplifier is built in to provide enough time for an ADC to make measurements. The sample and hold amplifier is synchronized with a micropulse frequency. In the paper we present results...

  15. Geochemical characterisation of Elbe river high flood sediments

    Energy Technology Data Exchange (ETDEWEB)

    Krueger, F. [UFZ - Umweltforschungszentrum Leipzig-Halle GmbH, Falkenberg (Germany). Sektion Boden-/Gewaesserforschung]|[UFZ - Umweltforschungszentrum Leipzig-Halle GmbH, Magdeburg (Germany). Sektion Gewaesserforschung; Rupp, H.; Meissner, R. [UFZ - Umweltforschungszentrum Leipzig-Halle GmbH, Falkenberg (Germany). Sektion Boden-/Gewaesserforschung; Lohse, M.; Buettner, O.; Friese, K. [UFZ - Umweltforschungszentrum Leipzig-Halle GmbH, Magdeburg (Germany). Sektion Gewaesserforschung; Miehlich, G. [Hamburg Univ. (Germany). Inst. fuer Bodenkunde

    2001-07-01

    Quality aims for land usage in flood plains have to be worked out in the Russian-German research project 'Effects of floods on the pollution of agricultural used flood plain soils of the Oka River and the Elbe River'. It is financed by the Germany Ministry of Education and Research (FKZ 02 WT 9617/0). Beside the characterisation of the present pollution of soils for the middle Elbe, it is necessary to prognosticate the current pollutant input. At the examination site nearby Wittenberge, Elbe River kilometers 435 and 440, natural deposited flood sediments were sampled by artificial lawn mats. By the geochemical characterisation it is possible to record the metal input into the flood plain and to win knowledge about the sedimentation process. The results of sediment investigation of the high flood in spring 1997 are presented. (orig.)

  16. Ecological interdependences between fish fauna and habitat structures of the Elbe river; Oekologische Zusammenhaenge zwischen Fischgemeinschafts- und Lebensraumstrukturen der Elbe

    Energy Technology Data Exchange (ETDEWEB)

    Thiel, R. [Institut fuer Hydrobiologie und Fischereiwissenschaft - Elbelabor, Universitaet Hamburg, Hamburg (Germany); Buslovich, R.; Gerkens, M. [and others

    2000-07-01

    Fluvial fishes are good indicators of the habitat quality in river systems. However, no quantitative data about the relationships between the ecomorphology of the Elbe River and its fish community were available. Therefore, fish ecological assessments or predictions of the development of the fish populations were not possible. Since March 1997, a project financed by the Federal Ministry of Education, Science, Research and Technology focuses on mathematical modelling of the habitat used of all life history stages of the fish fauna. The results of the project shall support decisions in the framework of changing ecomorphology in the Elbe River. (orig.)

  17. 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.)

  18. Xenoestrogens in the River Elbe and its tributaries

    International Nuclear Information System (INIS)

    Stachel, Burkhard; Ehrhorn, Ute; Heemken, Olaf-Peter; Lepom, Peter; Reincke, Heinrich; Sawal, Georg; Theobald, Norbert

    2003-01-01

    High concentrations of organic chemicals in the River Elbe may be detrimental to aquatic organisms. - 4-Alkylphenols, 4-alkylphenol ethoxylates, 4-alkylphenoxy carboxylates, bisphenol A, bisphenol F, 4-hydroxyacetophenon, 4-hydroxybenzoic acid and steroid hormones were analyzed in water samples of the River Elbe and its tributaries Schwarze Elster, Mulde, Saale, Havel and Schwinge. Additionally, freshly deposited sediments (FDS, composite samples) of the River Elbe and its tributaries were analyzed. The concentrations in water samples ranged from (in ng/l): bisphenol A 4 to 92, branched nonylphenol 13 to 87, branched nonylphenol ethoxylates <0.5 to 120, 4-tert. nonylphenoxy carboxylates <10 to 940 and 4-hydroxybenzoic acid 4 to 12. Steroid hormones were only detected in the Czech tributaries Jizera and Vltava in concentrations near the limit of quantification. In FDS samples the concentrations amounted to (in μg/kg d.w.): bisphenol A 10-380, branched nonylphenol 27-430, branched nonylphenol ethoxylates 24-3700, nonylphenoxy carboxylates <50 and 4-hydroxybenzoic acid 23-4400. Increased bisphenol A concentrations were found in water and FDS samples taken from the Czech-German border at Schmilka and the mouth of the Schwinge (only water sample). According to studies conducted in the Elbe Estuary and the German Bight, the River Elbe must be considered as a major source of pollution for the North Sea in respect of the compounds analyzed. A comparison of bisphenol A concentrations, 4-alkylphenols and the corresponding ethoxylates analyzed in the River Elbe and its tributaries with those found in other German surface waters indicated a low level of contamination. The evaluation of the data based on LOEC-values indicated that the concentrations were well below the effectivity threshold for some 4-alkylphenols. According to recent ecotoxicological investigations, for example, with prosobranch snails, bisphenol A concentrations found in water samples of the River Elbe and

  19. Sediment pollution of the Elbe River side structures - current research

    Science.gov (United States)

    Chalupova, Dagmar; Janský, Bohumír

    2016-04-01

    The contribution brings the summarized results of a long-term research on sediment pollution of side structures of the Elbe River over the last 14 years. The investigation has been focused on old anthropogenic pollution of sediment cores taken from fluvial lakes and floodplain, as the sampling of deeper sediments outside the riverbed is not a part of systematic monitoring of sediment pollution of the Elbe. The Elbe River floodplain has been influenced by human activities since the Middle Ages, but the main anthropogenic pollution have been produced in the 20th century. The studied localities were chosen with the respect to the distance from the source of industrial pollution, the intensity of hydrological communication with the river and the surrounding landuse to determine the extend and the level of anthropogenic contamination in the Elbe River floodplain ecosystem. Apart from bathymetric measurements, observation of the hydrological regime in several fluvial lakes or water quality sampling at some localities, the research was focused above all on determination of metal concentrations (Ag, Cd, Cr, Cu, Fe, Hg, Mn, Pb, Zn) in all taken sediment cores, specific organic compounds (PCBs, DDT, HCH, HCB, PAHs etc.), total organic carbon at some localities and grain structure analyses. The data were also compared with the results of systematic sediment monitoring from the nearest riverbed sampling stations on the Elbe River. The highest concentrations of metals and specific organic compounds were determined in the sediments taken from fluvial lakes and floodplain (Zimní přístav PARAMO, Rosice fuvial Lake, Libiš pool etc.) situated in the vicinity of the main Elbe River polluters - Synthesia chemical plant and PARAMO refinery in Pardubice or Spolana chemical plant near Neratovice. However, there was also determined a significant role of the hydrological communication with the river proved with lower sediment pollution in separated localities. The realization of the

  20. Quarternary tectonics in the Lower Elbe region. Pt. 2

    International Nuclear Information System (INIS)

    Meyer, K.D.

    1980-01-01

    In the Lower Elbe region, quarternary tectonic movements cannot be excluded, neither on the basis of ground survey findings and exploratory drills nor by evaluation of topographic and geological maps and geoscientific literature. It can be stated that: 1) The deep quarternary channels are neither tectonic structures nor fossil river beds cut into a foreland assumed to have been raised by 300-400 m but, rather, subglacially deepened erosion valleys; this hypothesis is proved not only by their shape and course but also by their being filled with purely nordic material. 2) Fracture-tectonic terrace movements cannot be proved; disturbances in geest regions are due to unit shortening of ice, dead ice subsidences, etc. 3) The river beds in the Lower Elbe region do not follow tectonic lines, and hydrographic 'anomalies' in the Gorleben region are randomly constructed. 4) The so-called 'crust movements' in the north-west GDR are, among others, relative movements against sea level and have many components whose order of magnitude is difficult to estimate. In particular, the apparently undisturbed location of the lower Elbe terrace makes tectonic mobility and earthquake hazards appear highly improbable. 5) Subrosion sinks and collapse sinks have so far not been detected over the Gorleben salt dome, and their existence is highly improbable. (orig.) [de

  1. Radioecological studies in the Elbe river. Pt. 2

    International Nuclear Information System (INIS)

    Feldt, W.; Kanisch, G.; Kanisch, M.; Lauer, R.

    1983-01-01

    The plutonium contents in water samples taken from the upper Elbe was 5.3 E-05 Bq/l on average from 1979 to 1982 (excluding values below NWC). From 1978 to 1982, in the lawer Elbe 3.3 E-05 Bq/l were measured on average. Most of this activity originates with nuclear weapon test fallout. The activity of the isotope Pu-238 in the fallout is 1/10 to 1/25 of the cumulative activity of Pu 239 and 240. This result is satisfactorily reflected in the measured values shown herein. Specific activity in fish is about 10 times higher (concentration factor 10). In sediments, plutonium is enriched on average by the factor 6000. From 1978 to 1982, the tritium contents in the water of the Elbe was on average 7 Bq/l. The concentration factor for fish meat was determined as 1. The radiation exposure of the population as detemined from the measured activity values are radiobiologically absolutely negligible (whole-body dose [de

  2. Determination of volatile, toxic hydrogen phosphides in the sediments of the Elbe river, the Elbe estuaries and the Heligoland Bay

    International Nuclear Information System (INIS)

    Gassmann, G.

    1992-01-01

    The distribution and concentraion of phosphines in the sediments of the Elbe river were determined by selective preparation and analysis. The concentration of phosphines in one kilogram wet sediment was in the range of 0.1 to 57 n g with the bulking, anaerobic mud from harbors having the highest and the sandy, aerobic sediments having the lowest concentrations. Phosphines in fluvial sediments were detected successfully for the first time applying the method described. (orig.) [de

  3. Sustainable water management and regional development. Analysis and assessment of scenarios on conflicts of water use in the Upper Spree catchment area, a region impacted by brown coal mining; Nachhaltige Wasserbewirtschaftung und regionale Entwicklung. Analyse und Bewertung von Szenarien zum Wassernutzungskonflikt im bergbaubeeinflussten Einzugsgebiet der Oberen Spree

    Energy Technology Data Exchange (ETDEWEB)

    Messner, F. [UFZ - Umweltforschungszentrum Leipzig-Halle GmbH, Leipzig (Germany). Sektion Oekonomie, Soziologie und Recht; Kaltofen, M. (eds.) [Brandenburgische Technische Univ. Cottbus (Germany)]|[Gesellschaft fuer Wasserwirtschaftliche Planung und Systemforschung mbH (WASY), Berlin (Germany)

    2004-07-01

    , Wassernutzungskonflikten und daraus resultierenden Umwelt- und soziooekonomischen Problemen im Elbeeinzugsgebiet. Zur Erfuellung dieser Fragestellung wurde der Integrative Methodische Ansatz von GLOWA-Elbe (IMA) entwickelt und angewendet. Untersuchungsraeume waren das Gesamtflussgebiet der Elbe inklusive einer Intensivstudie im Unstrut-Flussgebiet mit Bezug auf die Wasserqualitaetsproblematik sowie die Teilraeume Obere Spree, Spreewald (vgl. Dietrich et al. 2004) und Berlin (vgl. Finke et al. 2003) zur Analyse des besonders bedeutsamen Oberflaechenwasserverfuegbarkeitskonflikts im Spreeeinzugsgebiet. Das Teilgebietsprojekt Obere Spree beschaeftigte sich im Rahmen von GLOWA Elbe mit der integrierten Analyse und Bewertung des Obere-Spree-Gebietes, in dem bedingt durch jahrzehntelange Nutzung als Braunkohleabbaugebiet einer der groessten Oberflaechenwassermengen- und -qualitaetskonflikte in der Bundesrepublik Deutschland zu bewaeltigen ist. Der IMA wurde im Kontext dieses Teilgebietprojektes entwickelt und getestet. In diesem Ergebnisbericht werden die wesentlichen wasserwirtschaftlichen und sozio-oekonomischen Ergebnisse dieses Teilgebietsprojektes dargelegt, wobei verschiedene Ergebnisse aus anderen Teilprojekten von GLOWA Elbe massgeblich verarbeitet wurden. Ausfuehrlichere Darlegungen zu Einzelaspekten des GLOWA-Elbe-Projektes sind in Publikationen nachzulesen, die andernorts erschienen sind. Zu verweisen ist in diesem Zusammenhang auf die Homepage von GLOWA Elbe (http://www.glowa-elbe.de) sowie auf den PIK-Report 2004. In diesem Bericht wird auf weiterfuehrende Literatur zum Teilgebietsprojekt Obere Spree jeweils an gegebenem Ort verwiesen. (orig.)

  4. The herbicide Glyphosate affects nitrification in the Elbe estuary, Germany

    Science.gov (United States)

    Sanders, Tina; Lassen, Stephan

    2015-04-01

    The Elbe River is one of the biggest European rivers discharging into the North Sea. It also transports high amounts of nutrients and pollutants like pesticides. Important source regions of both nutrients and pollutants are located within the river catchment, which is dominated by agricultural land-use. From these agricultural soils, pesticides can be carried via the river and estuary into the North Sea. Glyphosate (N-(phosphonomethyl) glycine) is the most commonly used herbicide worldwide and mainly used to regulate unwanted plant growth and for the expedition of crop ripening. In Germany, ~ 6000 tons of glyphosate are applied yearly in agriculture and private use. Glyphosate is degradable by microorganisms and has a half-life in water of 35 to 60 days. This herbicide specifically inhibits 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS), an enzyme that catalyzes the biosynthesis of essential aromatic amino acids in plants, fungi, and bacteria. Nitrifying bacteria, which play an important role in the internal nitrogen cycling in the Elbe estuary, also possess this enzyme. The aim of our study was to quantify the concentration of glyphosate in water and sediment samples of the Elbe to get an overview about relevant environmental levels and to assess the impact of glyphosate on inhibition of nitrifying activities. To quantify the effect of glyphosate on nitrification activity, natural samples as well as pure cultures of Nitrosomonas europea (strain Nm50) were incubated with different concentrations of glyphosate over a period of some weeks. The nitrifying activity was determined according to changes of the nitrite and nitrate concentration as well as the cell number. Glyphosate was detectable in water and sediment samples in the Elbe estuary with up to 5 ppb mainly in the Port of Hamburg region. In both incubation experiments an inhibiting effect of glyphosate on nitrification could be shown. The incubated natural water sample was affected by a glyphosate

  5. ELB-trees an efficient and lock-free B-tree derivative

    DEFF Research Database (Denmark)

    Bonnichsen, Lars Frydendal; Karlsson, Sven; Probst, Christian W.

    2013-01-01

    overhead. All lock-free data structures are based on simple atomic operations that, though supported by modern processors, are expensive in execution time. We present a lock-free data structure, ELB-trees, which under certain assumptions can be used as multimaps as well as priority queues. Specifically...... it cannot store duplicate key-value pairs, and it is not linearizable. Compared to existing data structures, ELB-trees require fewer atomic operations leading to improved performance. We measure the parallel performance of ELB-trees using a set of benchmarks and observe that ELB-trees are up to almost 30......As computer systems scale in the number of processors, scalable data structures with good parallel performance become increasingly important. Lock-free data structures promise such improved parallel performance at the expense of higher algorithmic complexity and higher sequential execution time...

  6. Suspended matter and heavy metal content of the Elbe Estuary

    International Nuclear Information System (INIS)

    Vollbrecht, K.

    1980-01-01

    (1) In the River Elbe estuary there is a turbidity zone which is closely bound to the region of brackish waters. Its suspended matter content changes strongly with the tidal rhythm. Suspended matter and river bed sediments influence each other by exchanging their particles. Owing to that mechanism, the heavy metal ions bound or taken up by the suspended matter (sorption) enter the sediments. To obtain an estimation of the estuary's ability to cope with ( self purify ) a strong burden of industrial wastes, it is neccessary to take into consideration the absorbing capacity of both the mean suspension load and the sediments. (2) The concentration of nearly all heavy metal ions investigated in the suspension load decreases remarkably at the very beginning of the turbid zone already, in the Hamburg region. It indicates that the binding process are going on very rapidly and that the metal ion absorbing capacity of the Elbe estuary still requires only the first few miles of this self purification system. The results gained indicate that the suspended matter in Hamburg waters could bind or take up more heavy metal ions than are discharged into this area. (3) The concentration of most ions bound to the suspension material correlates very well with the grain size distribution of the (anorganic) particles. The concentration values decrease along the estuary and lead to a continuous transition to the values of the open sea. Cu, Ni and Cd appear to be captured preferably by organic suspended matter. This behaviour, however, is solely restricted to the turbid zone. In the open sea, after oxidation of the binding organic material, Cu and Ni correspond to the anorganic grain size distribution. (orig./HP) [de

  7. Particle Reduction Strategies - PAREST. Energy scenarios for PAREST. Sub-report; Strategien zur Verminderung der Feinstaubbelastung - PAREST. Energieszenarien fuer PAREST. Teilbericht

    Energy Technology Data Exchange (ETDEWEB)

    Joerss, Wolfram; Degel, Melanie [Institut fuer Zukunftsstudien und Technologiebewertung gGmbH (IZT), Berlin (Germany)

    2013-06-15

    In the research project PAREST emission scenarios to 2020 for particulate matter (PM{sub 10} und PM{sub 2,5}), and aerosol precursors SO{sub 2}, NO{sub x}, NH{sub 3} and NMVOC were prepared for Germany and Europe, mitigation measures evaluated and the results used to model the PM pollution load for Germany. In this part of the report to PAREST energy scenarios used for PAREST are presented. [German] Im Forschungsvorhaben PAREST wurden Emissionsszenarien bis 2020 fuer Feinstaub (PM{sub 10} und PM{sub 2,5}) und die Aerosol-Vorlaeufersubstanzen SO{sub 2}, NO{sub x}, NH{sub 3} und NMVOC fuer Deutschland und Europa erstellt, Minderungsmassnahmen evaluiert und daraus die PM-Immissionsbelastung fuer Deutschland modelliert. In diesem Teilbericht zu PAREST werden die fuer PAREST benutzten Energieszenarien vorgestellt.

  8. Particle Reduction Strategies - PAREST. Uncertainities of the PAREST reference emission data base. Sub-report; Strategien zur Verminderung der Feinstaubbelastung - PAREST. Unsicherheiten der PAREST-Referenz-Emissionsdatenbasis. Teilbericht

    Energy Technology Data Exchange (ETDEWEB)

    Joerss, Wolfram; Handke, Volker [Institut fuer Zukunftsstudien und Technologiebewertung gGmbH (IZT), Berlin (Germany)

    2013-06-15

    In the research project PAREST1 emission scenarios to 2020 for particulate matter (PM10 and PM2, 5), and aerosol precursors SO{sub 2}, NO{sub x}, NH{sub 3} and NMVOC are created for Germany and Europe, mitigation measures evaluated and the resulting PM immission load for Germany are modeled. In this sub-report of PAREST the analysis of the uncertainties of the reference emission data base is presented for Germany. [German] Im Forschungsvorhaben PAREST1 wurden Emissionsszenarien bis 2020 fuer Feinstaub (PM10 und PM2,5) und die Aerosol-Vorlaeufersubstanzen SO{sub 2}, NO{sub x}, NH{sub 3} und NMVOC fuer Deutschland und Europa erstellt, Minderungsmassnahmen evaluiert und daraus die PM-Immissionsbelastung fuer Deutschland modelliert. In diesem Teilbericht zu PAREST wird die Analyse der Unsicherheiten der Referenz-Emissionsdatenbasis fuer Deutschland vorgestellt.

  9. Ecological relations between fish assemblages and their habitats in the Elbe River (ELFI). Final report; Oekologische Zusammenhaenge zwischen Fischgemeinschafts- und Lebensraumstrukturen der Elbe (ELFI). Abschlussbericht

    Energy Technology Data Exchange (ETDEWEB)

    Nellen, W.; Kausch, H.; Thiel, R.; Ginter, R. (eds.)

    2002-12-01

    In the framework of the joint project, extensive data were obtained with regard to ecomorphology and hydro-dynamics of fish habitats, species diversity, age structure, abundance, habitat quality, habitat use, larval drift, migrations, growth, health status and population genetics of the fish fauna of the middle Elbe River. The data were stored in data banks and were used as basis to assess the middle Elbe River, to formulate a fish-ecological guiding view, and to develop predictive habitat models for different life stages of indicatory fish species. The data and results of the joint project will be stored in fish data banks of the ARGE Elbe and of the Federal Institute of Hydrology. The information is useful for the development of decision support systems. (orig.) [German] Im Rahmen des Verbundprojekts wurden umfangreiche Daten zu Oekomorphologie und Hydrodynamik von Fischhabitaten, zu Artendiversitaet, Altersstruktur, Abundanz, Habitatqualitaet und -nutzung, Larvendrift, Wanderungen, Wachstum, Gesundheitsstatus und Populationsgenetik der Fischfauna in der Mittelelbe erhoben und in Datenbanken abgelegt. Darauf aufbauend wurde die Mittelelbe fischoekologisch bewertet, ein fischoekologisches Leitbild formuliert und prognosefaehige Habitatmodelle fuer verschiedene Lebensstadien von Indikatorfischarten entwickelt. Die Daten und Ergebnisse des Verbundprojekts fliessen in die Fischdatenbanken der ARGE Elbe und der Bundesanstalt fuer Gewaesserkunde ein und stehen fuer die Entwicklung von DSS (Decision Support Systems) zur Verfuegung. (orig.)

  10. 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

    This special report focuses on measurements of elements whose scope goes far beyond the routine monitoring for metals. The present studies are intended to extend the existing knowledge on the pollution situation of the Elbe and certain of its tributaries as well as provide a basis for formulating future guidelines for action. The first step towards this goal is sampling by means of an helicopter. The sampling is followed by a very involved and costly analysis programme, accompanied by extensive quality assurance measures. This is the only way of reliably analysing a large number of elements occurring in extremely low concentrations. Once the data have been recorded the question arises how they are to be evaluated. What schemes are suitable for categorising a large number of elements measured in either the suspended matter or the water compartment? What elements are to be regarded as the result of anthropogenic influences and what are their respective background concentrations in the fluvial system under study? These questions are approached by means of statistical methods which permit identifying elemental patterns and pollution sources as well as optimising the selection of measuring points for future studies. [German] In diesem Sonderbericht steht die Bestimmung von Elementen, die in ihrem Umfang ueber die routinemaessig erfassten Metalle deutlich hinausgeht, im Vordergrund. Die vorliegenden Untersuchungen sollen das bereits vorhandene Wissen zur Beschreibung der Immissionssituation der Elbe und von bestimmten Nebenfluessen erweitern, verbunden mit der Moeglichkeit, zukuenftige Handlungsmaximen zu erarbeiten. Zur Erreichung dieses Ziels steht zu Beginn die Probenahme mit einem Helicopter. Im Anschluss an die Probenahme folgt eine sehr aufwendige und teure Analytik, die begleitet wird von umfassenden Massnahmen zur Qualitaetssicherung. Nur so ist es moeglich, eine grosse Vielzahl von Elementen in extrem niedrigen Konzentrationen sicher analysieren zu koennen. Sind

  11. Pollutant monitoring in the Elbe river with the aid of the zebra mussel. A classification system - 1990-1997; Schadstoffueberwachung der Elbe mit der Dreikantmuschel. Ein Klassifizierungssystem - 1990-1997

    Energy Technology Data Exchange (ETDEWEB)

    Krieg, H.J. [Hydrobiologische Untersuchungen und Gutachten - HUuG, Tangstedt (Germany); Gaumert, T. [comps.] [Wasserguetestelle Elbe, Hamburg (Germany)

    1998-04-01

    The pollutant burden of the Elbe river can now be assessed more accurately with the aid of a new classification system based on pollutant accumulation in the soft tissue of the zebra mussel (Dreissena polymorpha), which provided the basis for a 7-stage pollution scale for individual substances. This closes a gap in pollution analysis of the Elbe river and makes statements on pollutant levels more efficient. [Deutsch] Die Schadstoffbelastung der Elbe kann mit Hilfe eines neuen und hier erstmalig vorgestellten Klassifizierungssystems besser als bisher bewertet werden. Die Auswertung angereicherter Schadstoffgehalte im Weichkoerper der in den Elbe-Messstationen gehaelterten Dreikantmuschel Dreissena polymorpha fuehrte zur Entwicklung einer siebenstufigen Belastungs-Skala fuer einzelne Substanzen. Mit diesem Verfahren kann somit ein offener Bereich bei der Bewertung der Schadstoffbelastung der Elbe geschlossen und die Gewaesserueberwachung mit einer hoeheren Aussagekraft betrieben werden. (orig.)

  12. Electron beam final focus system for Thomson scattering at ELBE

    Energy Technology Data Exchange (ETDEWEB)

    Krämer, J.M., E-mail: jmkr@danfysik.dk [Danfysik A/S, Gregersensvej 8, 2630 Taastrup (Denmark); Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiation Physics, Bautzner Landstrasse 400, 01328 Dresden (Germany); Technische Universität Dresden, 01069 Dresden (Germany); Budde, M.; Bødker, F. [Danfysik A/S, Gregersensvej 8, 2630 Taastrup (Denmark); Irman, A.; Jochmann, A. [Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiation Physics, Bautzner Landstrasse 400, 01328 Dresden (Germany); Kristensen, J.P. [Danfysik A/S, Gregersensvej 8, 2630 Taastrup (Denmark); Lehnert, U.; Michel, P. [Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiation Physics, Bautzner Landstrasse 400, 01328 Dresden (Germany); Schramm, U. [Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiation Physics, Bautzner Landstrasse 400, 01328 Dresden (Germany); Technische Universität Dresden, 01069 Dresden (Germany)

    2016-09-11

    The design of an electron beam final focus system (FFS) aiming for high-flux laser-Thomson backscattering X-ray sources at ELBE is presented. A telescope system consisting of four permanent magnet based quadrupoles was found to have significantly less chromatic aberrations than a quadrupole doublet or triplet as commonly used. Focusing properties like the position of the focal plane and the spot size are retained for electron beam energies between 20 and 30 MeV by adjusting the position of the quadrupoles individually on a motorized stage. The desired ultra-short electron bunches require an increased relative energy spread up to a few percent and, thus, second order chromatic effects must be taken into account. We also present the design and test results of the permanent magnet quadrupoles. Adjustable shunts allow for correction of the field strength and compensation of deviations in the permanent magnet material. For a beam emittance of 13 mm mrad, we predict focal spot sizes of about 40 μm (rms) and divergences of about 10 mrad using the FFS.

  13. Electron beam final focus system for Thomson scattering at ELBE

    CERN Document Server

    Krämer, J.M.; Bødker, F.; Irman, A.; .Jochmann A.; Kristensen, J.P.; Lehnert U., HZDR; Michel, P.; Schrammb, U.; 10.1016/j.nima.2015.10.067

    2016-01-01

    The design of an electron beam final focus system (FFS) aiming for high-flux laser-Thomson backscattering X-ray sources at ELBE is presented. A telescope system consisting of four permanent magnet based quadrupoles was found to have significantly less chromatic aberrations than a quadrupole doublet or triplet as commonly used. Focusing properties like the position of the focal plane and the spot size are retained for electron beam energies between 20 and 30 MeV by adjusting the position of the quadrupoles individually on a motorized stage. The desired ultra-short electron bunches require an increased relative energy spread up to a few percent and, thus, second order chromatic effects must be taken into account. We also present the design and test results of the permanent magnet quadrupoles. Adjustable shunts allow for correction of the field strength and compensation of deviations in the permanent magnet material. For a beam emittance of 13 mm mrad, we predict focal spot sizes of about 40 μm (rms) and diverg...

  14. Electron Beam Final Focus System For Thomson Scattering At Elbe

    CERN Document Server

    Krämer, J.M.; Bødkera, F.; Irman, A.; Jochmann, A.; Kristensena, J.P.; Lehnert, U.; Michel, P.; Schramm, U.; 10.1016/j.nima.2015.10.067

    2016-01-01

    The design of an electron beam final focus system (FFS) aiming for high-flux laser-Thomson backscattering X-ray sources at ELBE is presented. A telescope system consisting of four permanent magnet based quadrupoles was found to have significantly less chromatic aberrations than a quadrupole doublet or triplet as commonly used. Focusing properties like the position of the focal plane and the spot size are retained for electron beam energies between 20 and 30 MeV by adjusting the position of the quadrupoles individually on a motorized stage. The desired ultra-short electron bunches require an increased relative energy spread up to a few percent and, thus, second order chromatic effects must be taken into account. We also present the design and test results of the permanent magnet quadrupoles. Adjustable shunts allow for correction of the field strength and compensation of deviations in the permanent magnet material. For a beam emittance of 13 mm mrad, we predict focal spot sizes of about 40 μm (rms) and diverg...

  15. Comparison of Heterotrophic Bacterial Production-Rates in Early Spring in the Turbid Estuaries of the Scheldt and the Elbe

    NARCIS (Netherlands)

    Goosen, N.K.; Van Rijswijk, P.; Brockmann, U.

    1995-01-01

    In spring bacterial production rates were estimated by tritiated thymidine incorporation in the turbid estuaries of the rivers Scheldt and Elbe. Bacterial production rates in the Scheldt were 5 times higher than in the Elbe. In the Scheldt bacterial production rates correlated better with the DOC

  16. Establishment of a laboratory for spectroscopic investigation of radioactive samples at the ELBE-FEL facility. Intentions and perspectives

    International Nuclear Information System (INIS)

    Foerstendorf, H.; Friedrich, H.; Heise, K.H.

    2002-01-01

    The Institute of Radiochemistry is setting up a radionuclide laboratory for optical spectroscopy at the free electron laser facility of the ELBE electron accelerator (ELBE-FEL). The quality of the infrared light source opens up new fields of analytical research in radiochemistry. Some aspects of future applications are introduced. (orig.)

  17. Examples of sediment assessment on the Elbe: contamination and ecotoxic effect; Beispiele der Sedimentbewertung an der Elbe: Schadstoffbelastung und oekotoxische Wirkung

    Energy Technology Data Exchange (ETDEWEB)

    Claus, E.; Heininger, P.; Pfitzner, S. [Bundesanstalt fuer Gewaesserkunde, Berlin (Germany)

    2000-11-01

    It is now an undisputed fact that comprehensive sediment assessment is only possible through a combination of chemical studies on contamination, ecotoxicological tests and in situ studies. The effect of chemicals on the aquatic environment can be determined in the sediment itself and in the derived compartments. The batteries of biotests proposed for this purpose and also used for Elbe sediments encompass studies on the whole sediment, in the elutriate and in extracts with methanol. The test battery presented here is more extensive and also includes pore water studies. For the tests with the whole sediment, the following test organisms were used: D. magna (DA), C. riparius (CR), T. tubifex (TT), B. cereus (BC) and C. elegans (NE). The toxic effect of pore waters and elutriates were tested with daphnia, green algae (Scenedesmus subspicatus) and luminescent bacteria (Vibrio fischeri). Luminescent bacteria alone were used for the ecotoxicological study. For this studies eight fresh sediment samples were selected from one reference site Alte Elbe (AE, km 252) and the two anthropogenic influenced sampling sites Meissen harbour (HM, km 83.2) and Fahlberg-List Magdeburg (FL, km 319.4) on the Elbe and the reference site Freienbrink (FB, km 21.5) on the Spree (Fig. 1). The samples were taken in June and October 1997. (orig.) [German] Mittlerweile unbestritten ist die Tatsache, dass nur die Kombination aus chemischen Untersuchungen zur Schadstoffbelastung, oekotoxikologischen Tests und in situ-Untersuchungen eine umfassende Sedimentbewertung moeglich macht. Die Wirkung von Chemikalien auf die aquatische Umwelt laesst sich im Sediment selbst und in daraus abgeleiteten Kompartimenten nachweisen. Fuer den Zweck vorgeschlagene und auch auf Elbe-Sedimente angewandte Batterien von Biotests umfassen Untersuchungen im Gesamtsediment, im Eluat und in Extrakten mit Methanol. Die hier vorgestellte Testbatterie ist umfangreicher und um Porenwasseruntersuchungen erweitert worden. Fuer

  18. EPOS-An intense positron beam project at the ELBE radiation source in Rossendorf

    International Nuclear Information System (INIS)

    Krause-Rehberg, R.; Sachert, S.; Brauer, G.; Rogov, A.; Noack, K.

    2006-01-01

    EPOS, the acronym of ELBE Positron Source, describes a running project to build an intense pulsed beam of mono-energetic positrons (0.2-40 keV) for materials research. Positrons will be created via pair production at a tungsten target using the pulsed 40 MeV electron beam of the superconducting linac electron linac with high brilliance and low emittance (ELBE) at Forschungszentrum Rossendorf (near Dresden, Germany). The chosen design of the system under construction is described and results of calculations simulating the interaction of the electron beam with the target are presented, and positron beam formation and transportation is also discussed

  19. RANK und RANKL - Vom Knochen zum Mammakarzinom

    Directory of Open Access Journals (Sweden)

    Sigl V

    2012-01-01

    Full Text Available RANK („Receptor Activator of NF-κB“ und sein Ligand RANKL sind Schlüsselmoleküle im Knochenmetabolismus und spielen eine essenzielle Rolle in der Entstehung von pathologischen Knochenveränderungen. Die Deregulation des RANK/RANKL-Systems ist zum Beispiel ein Hauptgrund für das Auftreten von postmenopausaler Osteoporose bei Frauen. Eine weitere wesentliche Funktion von RANK und RANKL liegt in der Entwicklung von milchsekretierenden Drüsen während der Schwangerschaft. Dabei regulieren Sexualhormone, wie zum Beispiel Progesteron, die Expression von RANKL und induzieren dadurch die Proliferation von epithelialen Zellen der Brust. Seit Längerem war schon bekannt, dass RANK und RANKL in der Metastasenbildung von Brustkrebszellen im Knochengewebe beteiligt sind. Wir konnten nun das RANK/RANKLSystem auch als essenziellen Mechanismus in der Entstehung von hormonellem Brustkrebs identifizieren. In diesem Beitrag werden wir daher den neuesten Erkenntnissen besondere Aufmerksamkeit schenken und diese kritisch in Bezug auf Brustkrebsentwicklung betrachten.

  20. Methane distribution and methane oxidation in the water column of the Elbe estuary, Germany

    Czech Academy of Sciences Publication Activity Database

    Matoušů, Anna; Osudar, R.; Šimek, Karel; Bussmann, I.

    2017-01-01

    Roč. 79, č. 3 (2017), s. 443-458 ISSN 1015-1621 R&D Projects: GA ČR(CZ) GA13-00243S Institutional support: RVO:60077344 Keywords : estuary * methane * methane budget * ethane oxidation * River Elbe Subject RIV: DA - Hydrology ; Limnology OBOR OECD: Marine biology, freshwater biology, limnology Impact factor: 2.821, year: 2016

  1. Particle Reduction Strategies - PAREST. Emissions from open burning. Sub-report; Strategien zur Verminderung der Feinstaubbelastung - PAREST. Emissionen aus offener Verbrennung. Teilbericht

    Energy Technology Data Exchange (ETDEWEB)

    Joerss, Wolfram [Institut fuer Zukunftsstudien und Technologiebewertung gGmbH (IZT), Berlin (Germany)

    2013-06-15

    In this research project PAREST emission scenarios from 2000/2005 to 2020 for particulate matter (PM10 and PM2,5), and aerosol precursors SO{sub 2}, NO{sub x}, NH{sub 3} and NMVOC are prepared for Germany and Europe, mitigation measures evaluated, in order to model the necessary data for PM pollution load for Germany. In this sub-report PAREST an estimation of emissions from open burning is presented. This rough estimation should serve to assess the relevance of this source category that is not included in the reference emission data base of PAREST. [German] Im Forschungsvorhaben PAREST wurden Emissionsszenarien von 2000 /2005 bis 2020 fuer Feinstaub (PM10 und PM2,5) und die Aerosol-Vorlaeufersubstanzen SO{sub 2}, NO{sub x}, NH{sub 3} und NMVOC fuer Deutschland und Europa erstellt, Minderungsmassnahmen evaluiert und daraus die PM-Immissionsbelastung fuer Deutschland modelliert. In diesem Teilbericht zu PAREST wird eine Abschaetzung der Emissionen aus offener Verbrennung vorgestellt. Diese grobe Abschaetzung soll dazu dienen die Relevanz dieser Quellgruppe einzuschaetzen, die in der Referenz-Emissionsdatenbasis von PAREST nicht erfasst ist.

  2. Tracking Polychlorinated Biphenyls (PCB) after an incident along a river system - Case study Elbe River

    Science.gov (United States)

    Kleisinger, Carmen; Dietrich, Stephan; Kehl, Nora; Claus, Evelyn; Schubert, Birgit

    2017-04-01

    In spring 2015, extremely high concentrations of Polychlorinated Biphenyls (PCB) well above the long-term average were detected in suspended particulate matter (SPM) within the River Elbe. They were released due to abrasive blasting of the old coating from a bridge in the upper part of the River, approximately 50 km upstream of the first measurement site. PCBs are persistent organic pollutants, preferentially bound to fine-grained fractions of the SPM. Results from monitoring of contaminants in SPM along the Elbe indicate the further dispersal of the PCB-contaminated sediments. These measurements include yearly investigations on PCB concentrations in sediments in the inner reaches of the Elbe, an additional longitudinal survey in 2015 and monthly monitoring of PCBs in SPM at stations along the river including the Elbe estuary (Germany). The Elbe estuary is of major economic importance since Hamburg harbour, one of the largest harbours in Europe, is located there. Maintaining the harbour includes dredging and, i.a., relocating large amounts of the dredged material within the water body. High PCB concentrations in sediments could lead to restrictions on the relocation of these sediments. This study aims at tracking the fate of PCB contaminated material released from the point source of the incident site along the whole river stretch and at estimating its impact on the quality of sediments and consequently on dredging activities in the estuary. The ratio of high (PCB 138, 152 and 180) versus low (PCB 28, 52, 101) chlorinated PCB congeners proved to be a suitable tracer to distinguish the PCB load released by the incident from the long-term background signals. As Delor 106/Clophen A60, which contains approx. 90% hexa- to decachloric congeners, was an additive in the coating of the bridge, the pattern of PCBs released by the incident is dominated by the highly chlorinated PCB-congeners PCB 138, 153 and 180. At the tidal weir Geesthacht, the entrance to the estuary, an

  3. The Radiation Source ELBE and its Research Program in Nuclear Physics

    International Nuclear Information System (INIS)

    Lehnert, U.; Michel, P.; Schwengner, R.

    2005-01-01

    The new radiation source 'Strahlungsquelle ELBE' at the Forschungszentrum Rossendorf (FZR) near Dresden, Germany, is a user facility that utilizes a superconducting linear accelerator to produce various secondary beams for experiments in nuclear science, solid state physics, materials research, environmental chemistry and in the life sciences. The high brilliance electron beam of up to 40 MeV and 1 mA (cw) is mainly used to drive free electron lasers producing infrared light in the 5-150 μm wavelength region. Additionally, polarized MeV-Bremsstrahlung and X-rays from electron channeling are available, facilities for neutron and positron production are under construction. The talk outlines the ongoing research activities at ELBE with special attention to the nuclear resonance fluorescence experiments

  4. Investigation on the formation of monomethylmercury(II) in the Elbe

    International Nuclear Information System (INIS)

    Ebinghaus, R.; Wilken, R.D.; Gisder, P.

    1994-01-01

    Very little is known about transformation reactions of pollutants attached to suspended materials in the Elbe. In the present study, the influence of bacteria present in suspended particulate matter and in Elbe sediments, on dynamic transformations of mercury species was investigated. The formation of highly toxic monomethylmercury is more effective in the presence of organotin, - lead and arsenic compounds, via transmethylation reactions, than in the presence of biogenic methyldonors. Under oxic conditions, bacteria isolated from suspended particulate matter decompose methlmercury very rapidly to inorganic Hg(II), which is immobilized by the cells. In sediments, redox potential and pH value are important for the formation of methylmercury. Under anoxic conditions a pH of 6.5 is advantageous for the methylation of mercury(II)ions. (orig.) [de

  5. Fast neutron measurements at the nELBE time-of-flight facility

    Directory of Open Access Journals (Sweden)

    Junghansa A. R.

    2015-01-01

    Full Text Available The compact neutron-time-of-flight facility nELBE at the superconducting electron accelerator ELBE of Helmholtz-Zentrum Dresden-Rossendorf has been rebuilt. A new enlarged experimental hall with a flight path of up to 10 m is available for neutron time-of-flight experiments in the fast energy range from about 50 keV to 10 MeV. nELBE is intended to deliver nuclear data of fast neutron nuclear interactions e.g. for the transmutation of nuclear waste and improvement of neutron physical simulations of innovative nuclear systems. The experimental programme consists of transmission measurements of neutron total cross sections, elastic and inelastic scattering cross section measurements, and neutron induced fission cross sections. The inelastic scattering to the first few excited states in 56Fe was investigated by measuring the gamma production cross section with an HPGe detector. The neutron induced fission of 242Pu was studied using fast ionisation chambers with large homogeneous actinide deposits.

  6. The elbe accelerator facility starts operation with the superconducting rf gun

    CERN Document Server

    Xiang, R; Buettig, H; Janssen, D; Justus, M; Lehnert, U; Michel, P; Murcek, P; Schneider, C; Schurig, R; Staufenbiel, F; Teichert, J; Kamps, T; Rudolph, J; Schenk, M; Klemz, G; Will, I

    2010-01-01

    As the first superconducting rf photo-injector (SRF gun) in practice, the FZD 3+1/2 cell SRF gun is successfully connected to the superconducting linac ELBE. This setting will improve the beam quality for ELBE users. It is the first example for an accelerator facility fully based on superconducting RF technology. For high average power FEL and ERL sources, the combination of SRF linac and SRF gun provides a new chance to produce beams of high average current and low emittance with relative low power consumption. The main parameters achieved from the present SRF gun are the final electron energy of 3 MeV, 16 μA average current, and rms transverse normalized emittances of 3 mm mrad at 77 pC bunch charge. A modified 3+1/2 cell niobium cavity has been fabricated and tested, which will increase the rf gradient in the gun and thus better the beam parameters further. In this paper the status of the integration of the SRF gun with the ELBE linac will be presented, and the latest results of the beam experiments will ...

  7. Revising time series of the Elbe river discharge for flood frequency determination at gauge Dresden

    Directory of Open Access Journals (Sweden)

    S. Bartl

    2009-11-01

    Full Text Available The German research programme RIsk MAnagment of eXtreme flood events has accomplished the improvement of regional hazard assessment for the large rivers in Germany. Here we focused on the Elbe river at its gauge Dresden, which belongs to the oldest gauges in Europe with officially available daily discharge time series beginning on 1 January 1890. The project on the one hand aimed to extend and to revise the existing time series, and on the other hand to examine the variability of the Elbe river discharge conditions on a greater time scale. Therefore one major task were the historical searches and the examination of the retrieved documents and the contained information. After analysing this information the development of the river course and the discharge conditions were discussed. Using the provided knowledge, in an other subproject, a historical hydraulic model was established. Its results then again were used here. A further purpose was the determining of flood frequency based on all pre-processed data. The obtained knowledge about historical changes was also used to get an idea about possible future variations under climate change conditions. Especially variations in the runoff characteristic of the Elbe river over the course of the year were analysed. It succeeded to obtain a much longer discharge time series which contain fewer errors and uncertainties. Hence an optimized regional hazard assessment was realised.

  8. Revising time series of the Elbe river discharge for flood frequency determination at gauge Dresden

    Science.gov (United States)

    Bartl, S.; Schümberg, S.; Deutsch, M.

    2009-11-01

    The German research programme RIsk MAnagment of eXtreme flood events has accomplished the improvement of regional hazard assessment for the large rivers in Germany. Here we focused on the Elbe river at its gauge Dresden, which belongs to the oldest gauges in Europe with officially available daily discharge time series beginning on 1 January 1890. The project on the one hand aimed to extend and to revise the existing time series, and on the other hand to examine the variability of the Elbe river discharge conditions on a greater time scale. Therefore one major task were the historical searches and the examination of the retrieved documents and the contained information. After analysing this information the development of the river course and the discharge conditions were discussed. Using the provided knowledge, in an other subproject, a historical hydraulic model was established. Its results then again were used here. A further purpose was the determining of flood frequency based on all pre-processed data. The obtained knowledge about historical changes was also used to get an idea about possible future variations under climate change conditions. Especially variations in the runoff characteristic of the Elbe river over the course of the year were analysed. It succeeded to obtain a much longer discharge time series which contain fewer errors and uncertainties. Hence an optimized regional hazard assessment was realised.

  9. Seasonal variation of sediment toxicity in the Rivers Dommel and Elbe

    International Nuclear Information System (INIS)

    Hsu, P.; Matthaei, A.; Heise, S.; Ahlf, W.

    2007-01-01

    Contaminated sediment in the river basin has become a source of pollution with increasing importance to the aquatic ecosystem downstream. To monitor the temporal changes of the sediment bound contaminants in the River Elbe and the River Dommel monthly toxicity tests were applied to layered sediment and river water samples over the course of 10 months. There is an indication that contaminated sediments upstream adversely affected sediments downstream, but this process did not cause a continuous increase of sediment toxicity. A clear decrease of toxic effects in water and upper layer sediment was observed at the River Elbe station in spring related to high water discharge and algal blooms. The less obvious variation of sediment toxicity in the River Dommel could be explained by stable hydrological conditions. Future monitoring programmes should promote a more frequent and intensive sampling regime during these particular events for ecotoxicological evaluation. - Significant impacts of hydrological and biological factors on the ecotoxicological quality in two European rivers (Elbe and Dommel)

  10. The significance of sediment contamination in the Elbe River floodplain (Czech Republic)

    Science.gov (United States)

    Chalupová, Dagmar; Janský, Bohumír; Langhammer, Jakub; Šobr, Miroslav; Jiři, Medek; Král, Stanislav; Jiřinec, Petr; Kaiglova, Jana; Černý, Michal; Žáček, Miroslav; Leontovyčova, Drahomíra; Halířová, Jarmila

    2015-04-01

    The abstract brings the information about the research that was focused on anthropogenic pollution of river and lake sediments in the middle course of the Elbe River (Czech Republic). The main aim was to identify and to evaluate the significance of old polluted sediments in the river and its side structures (old meanders, cut lakes, oxbow lakes) between Hradec Králové and Mělník (confluence with the Moldau River) and to assess the risk coming from the remobilization of the contaminated matter. The Elbe River floodplain has been highly inhabited since the Middle Ages, and, especially in the 20th century, major industrial plants were founded here. Since that time, the anthropogenic load of the river and it`s floodplain has grown. Although the contaminants bound to the sediment particles are usually stable, the main risk is coming from the fact that under changes in hydrological regime and water quality (floods, changes in pH, redox-potential, presence of complex substances etc.), the pollution can be released and remobilized again. The most endangered areas are: the surroundings of Pardubice (chemical factory Synthesia, Inc.; refinery PARAMO), and Neratovice (chemical factory Spolana, Inc.). The chemical factories situated close to these towns represented the most problematic polluters of the Elbe River especially during 2nd half of 20th century. In the research, the main attention was aimed at subaquatic sediments of selected cut lakes situated in the vicinity of the above mentioned sources of pollution. To describe the outreach of contamination, several further fluvial lakes were taken into account too. Sediment sampling was carried out from boats on lakes and with the help of drilling rig in the floodplain. Gained sediment cores were divided into several parts which were analysed separately. Chemical analyses included substances identified by ICPER (International Commission for the Protection of the Elbe River) as well as chemicals considered as significant in

  11. Validation of the GPU-Accelerated CFD Solver ELBE for Free Surface Flow Problems in Civil and Environmental Engineering

    Directory of Open Access Journals (Sweden)

    Christian F. Janßen

    2015-07-01

    Full Text Available This contribution is dedicated to demonstrating the high potential and manifold applications of state-of-the-art computational fluid dynamics (CFD tools for free-surface flows in civil and environmental engineering. All simulations were performed with the academic research code ELBE (efficient lattice boltzmann environment, http://www.tuhh.de/elbe. The ELBE code follows the supercomputing-on-the-desktop paradigm and is especially designed for local supercomputing, without tedious accesses to supercomputers. ELBE uses graphics processing units (GPU to accelerate the computations and can be used in a single GPU-equipped workstation of, e.g., a design engineer. The code has been successfully validated in very different fields, mostly related to naval architecture and mechanical engineering. In this contribution, we give an overview of past and present applications with practical relevance for civil engineers. The presented applications are grouped into three major categories: (i tsunami simulations, considering wave propagation, wave runup, inundation and debris flows; (ii dam break simulations; and (iii numerical wave tanks for the calculation of hydrodynamic loads on fixed and moving bodies. This broad range of applications in combination with accurate numerical results and very competitive times to solution demonstrates that modern CFD tools in general, and the ELBE code in particular, can be a helpful design tool for civil and environmental engineers.

  12. Historical occurrence and extinction of Atlantic salmon in the River Elbe from the fourteenth to the twentieth centuries

    Directory of Open Access Journals (Sweden)

    Andreska J.

    2015-03-01

    Full Text Available Data on the occurrence, biology, and historical background of the Atlantic salmon, Salmo salar L., (Pisces, Salmoniformes in the Elbe river basin (Europe, North Sea drainage area with a focus on Bohemian territory (Central Europe from the fourteenth to twentieth centuries are summarized in this paper. Historical methods of salmon fishing in Central Europe and historical legal protection of salmon in Bohemia are presented. The salmon is a model example of species which was extirpated as a result of anthropogenic changes in the landscape and rivers in some water systems. The human activities, such as stream bed regulation, dam system construction, other migration barriers, water pollution, fisheries exploitation, that led to the extirpation of Atlantic salmon in the Elbe river basin (are discussed. The last sporadic migrating native salmon were registered in the Bohemian section of the Elbe river basin in the mid twentieth century.

  13. PCDD/Fs and dioxin-like PCBs in soils after the flooding of River Elbe and Mulde in 2002

    Energy Technology Data Exchange (ETDEWEB)

    Umlauf, G.; Christoph, E.H.; Bidoglio, G. [European Commission, Ispra (IT). Institute for Environment and Sustainability (IES), Joint Research Center (JRC)

    2004-09-15

    On account of the Elbe and Mulde flooding in 2002 the UFZ Centre for Environmental Research Leipzig/Halle co-ordinated an ad hoc project entitled 'Pollutant studies following the flooding in August 2002 - determining the potential hazards in the Elbe and the Mulde' (BMBF ad-hoc- Verbundprojekt Elbe Hochwasser 2002). In the frame of this project, the Institute of Environment and Sustainability of the Joint Research Centre of the European Commission addressed the issue of the contamination of PCDD/Fs and dioxin-like PCBs in flooded soils. The objective of this survey was to assess the contamination of urban and agricultural soils in relation to current land use, to estimate the specific impact of the flooding in 2002 and to link the contamination data to possible sources.

  14. Fast-neutron-induced fission of 242Pu at nELBE

    Directory of Open Access Journals (Sweden)

    Kögler Toni

    2017-01-01

    Full Text Available The fast neutron-induced fission cross section of 242Pu was determined in the range of 0.5 MeV to 10 MeV relative to 235U(n,f at the neutron time-of-flight facility nELBE. The number of target nuclei was calculated by means of measuring the spontaneous fission rate of 242Pu. Neutron transport simulations with Geant4 and MCNP6 are used to correct the relative cross section for neutron scattering. The determined results are in good agreement with current experimental and evaluated data sets.

  15. Neutron total cross section measurements of gold and tantalum at the nELBE photoneutron source

    CERN Document Server

    Hannaske, Roland; Beyer, Roland; Junghans, Arnd; Bemmerer, Daniel; Birgersson, Evert; Ferrari, Anna; Grosse, Eckart; Kempe, Mathias; Kögler, Toni; Marta, Michele; Massarczyk, Ralph; Matic, Andrija; Schramm, Georg; Schwengner, Ronald; Wagner, Andreas

    2014-01-01

    Neutron total cross sections of 197 Au and nat Ta have been measured at the nELBE photoneutron source in the energy range from 0.1 - 10 MeV with a statistical uncertainty of up to 2 % and a total systematic uncertainty of 1 %. This facility is optimized for the fast neutron energy range and combines an excellent t ime structure of the neutron pulses (electron bunch width 5 ps) with a short flight path of 7 m. Because of the low instantaneous neutron flux transmission measurements of neutron total cross sections are possible, that exhibit very different beam and back ground conditions than found at other neutron sources.

  16. Non-steroidal anti-inflammatory drugs in the watercourses of Elbe basin in Czech Republic

    Czech Academy of Sciences Publication Activity Database

    Maršík, Petr; Rezek, Jan; Židková, Monika; Kramulová, Barbora; Tauchen, J.; Vaněk, Tomáš

    2017-01-01

    Roč. 171, MAR (2017), s. 97-105 ISSN 0045-6535 R&D Projects: GA ČR(CZ) GA14-22593S Grant - others:European Regional Development Fund(XE) CZ.2.16/3.1.00/24014; European Regional Development Fund(XE) CZ.2.16/3.1.00/21519 Institutional support: RVO:61389030 Keywords : chromatography-mass-spectrometry * gas-chromatography * human pharmaceuticals * waste-water * surface-water * risk-assessment * diclofenac * ibuprofen * products * plants * NSAID Surface water * Pharmaceuticals * GCxGC-TOFMS Elbe basin * Czech Republic Subject RIV: CE - Biochemistry OBOR OECD: Environmental biotechnology Impact factor: 4.208, year: 2016

  17. Test measurement of a new TESLA cavity beam position monitor at the ELBE linac

    International Nuclear Information System (INIS)

    Sargsyan, V.; Schreiber, H.J.; Evtushenko, P.; Schurig, R.

    2004-01-01

    A new type of a cavity BPM proposed for beam position determination along the TESLA linac was tested at the accelerator ELBE in Rossendorf / Dresden. Measurements using an improved BPM (large and stable cross-talk isolation, significantly less energy dissipation, a novel LO signal generation) were performed in single- and multi-bunch regimes. Agreement with expectations was found. The low bunch charge available allowed for preliminary measurements on sensitivity and position resolution, which extrapolated to TESLA would ful l the demands for precise bunch-to-bunch position determination. Possible improvements, in particular on the signal processing scheme, are also discussed. (orig.)

  18. Scale-dependent variability of as and Heavy metals in a river elbe floodplain

    Energy Technology Data Exchange (ETDEWEB)

    Zimmer, Dana; Kiersch, Kristian; Baum, Christel; Mueller, Robert; Jandl, Gerald; Leinweber, Peter [Institute for Land Use, University of Rostock, Rostock (Germany); Meissner, Ralph [UFZ, Helmholtz Centre for Environmental Research, Department of Soil Physics, Falkenberg (Germany)

    2011-04-15

    The River Elbe has been one of the worst polluted major rivers of Europe. For designing a successful remediation strategy of the floodplain soils the spatial variation in total concentrations and bioavailability of pollutants must be known, and the remediation efficiency should be monitored. The obtained data present the ''status quo'' which is a baseline for evaluating the medium-term effects of the phytoremediation with fast-growing willows established in the flood channel. (Copyright copyright 2011 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim)

  19. Influence of environmental factors on fish assemblages in streams of the Elbe and Oder basins

    Directory of Open Access Journals (Sweden)

    Luboš Kůra

    2015-11-01

    Full Text Available The effects of environmental parameters on changes in the structure of fish assemblages were studied in the Elbe and the Odra basin. Research was done at 819 sites surveyed in the field during the period 1993-2007. The impact of 46 factors derived from the maps through a GIS was tested as well as the impact of 10 factors recognized in the field. To evaluate the influence of these factors the indirect (DCA and direct (CCA multivariate cluster analysis were used. Analyses were performed with data on presence-absence and relative abundance of each species. DCA well reflects changes in assemblages in the longitudinal profile of streams. CCA refers to a significant influence of regional and temporal variability and influence of individual factors. The fish assemblages are best characterized by distance from the source location, stream slope, altitude of locality, representation of arable land in the basin, number of ponds in the sub-basin above the locality, type of waters (salmonid or cyprinid, and water temperature (the only of the parameters of the field. The analyzed factors better reflect the variability in fish assemblages of the Odra than of Elbe river basin. The analysis showed good practical efficiency of processing information from a large sample of data from ichthyological surveys. The tools of GIS and the use of statistical methods make possible to characterize basic ecological requirements of most species and specify conditions determining specific composition of fish assemblages.

  20. Metals and arsenic in soils and corresponding vegetation at Central Elbe river floodplains (Germany)

    Energy Technology Data Exchange (ETDEWEB)

    Overesch, M. [Department for Geo- and Agroecology, Institute of Spatial Analysis and Planning in Areas of Intensive Agriculture, University of Vechta, P.O. Box 1553, D-49364 Vechta (Germany)]. E-mail: moveresch@ispa.uni-vechta.de; Rinklebe, J. [Department of Soil Science, UFZ Center for Environmental Research Leipzig-Halle, Theodor-Lieser-Strasse 4, D-06120 Halle (Germany)]. E-mail: joerg.rinklebe@ufz.de; Broll, G. [Department for Geo- and Agroecology, Institute of Spatial Analysis and Planning in Areas of Intensive Agriculture, University of Vechta, P.O. Box 1553, D-49364 Vechta (Germany)]. E-mail: gbroll@ispa.uni-vechta.de; Neue, H.-U. [Department of Soil Science, UFZ Center for Environmental Research Leipzig-Halle, Theodor-Lieser-Strasse 4, D-06120 Halle (Germany)]. E-mail: heinz-ulrich.neue@ufz.de

    2007-02-15

    Floodplain soils at the Elbe river are frequently polluted with metals and arsenic. High contents of these pollutants were detected down to subsoil layers. NH{sub 4}NO{sub 3}-extractable (phytoavailable) Cd, Ni, and Zn were elevated in horizons with high acidity. Among five common floodplain plant species, Artemisia vulgaris showed highest concentrations of Cd, Cu, and Hg, Alopecurus pratensis of As and Phalaris arundinacea of Ni, Pb, and Zn. Relationships were weak between metal concentrations in plants and phytoavailable stocks in soil. As and Hg uptake seems to be enhanced on long submerged soils. Enrichments of Cd and Hg are linked to a special plant community composition. Grassland herbage sampled in July/August revealed higher concentrations of As (+122%), Hg (+124%), and Pb (+3723%) than in May. To limit harmful transfers into the food chain, low-lying terraces and flood channels revealing highest contaminations or phytoavailabilities should be excluded from mowing and grazing. - Soils in the Elbe river floodplains are highly polluted with metals and arsenic and a critical enrichment in the grassland herbage seems to be most likely in flood channels or within special plant species.

  1. Timing measurements at ELBE on multigap resistive plate chamber prototypes for NeuLAND

    Energy Technology Data Exchange (ETDEWEB)

    Yakorev, Dmitry; Bemmerer, Daniel; Cowan, Tom; Stach, Daniel; Wagner, Andreas [Forschungszentrum Dresden-Rossendorf (FZD), Dresden (Germany); Aumann, Tom; Boretzky, Konstanze; Hehner, Joerg; Heil, Michael; Prokopowicz, Wawrczek; Reifarth, Rene; Schrieder, Gerhard [Gesellschaft fuer Schwerionenforschung (GSI), Darmstadt (Germany); Elvers, Michael; Zilges, Andreas [Universitaet Koeln (Germany); Kratz, Jens Volker; Rossi, Dominic [Johannes-Gutenberg-Universitaet, Mainz (Germany)

    2009-07-01

    The NeuLAND detector for fast neutrons (0.2-1 GeV) at the R3B experiment at FAIR aims for high time and spatial resolutions ({sigma}{sub t}<100 ps, {sigma}{sub x,y,z}<1 cm). The detector will consist of about 60 sequences of a stacked structure from iron converter material and multigap resistive plate chambers (MRPC's). The secondary charged particles stemming from hadronic interactions of the high energetic neutrons in the converter will be detected in the MRPC's, with excellent timing properties. As part of the ongoing development of the NeuLAND detector, MRPC prototypes designed for this application have been studied at the superconducting electron linac ELBE in Dresden with its picosecond time structure. The ELBE experiments show that the prototypes studied so far have efficiency {>=}90% for minimum ionizing particles in a 2 x 2 gap structure and fulfill the called for time resolution.

  2. Investigation of trace elements in Elbe water by means of instrumental neutron activation analysis

    International Nuclear Information System (INIS)

    Motamedi, K.

    1977-01-01

    Investigations of trace elements in Elbe water were carried out as a contribution to environmental research, hydrology, and geochemistry. The method applied - instrumental neutron activation analysis - is described, and problems connected with the course of analysis - sample taking, handling and preparation as well as optimization of in-pile irradiation and measurement by means of γ spectrometry - are discussed and presented one by one. The computer programme set up for automatic evaluation is described in more detail. This programme AKAN has a very general concept which makes it applicable for general use. The reliability of the evaluation procedure - monostandard method - and the reproducibility of the results are discussed. For the studies, samples were taken at different times, every time from 8 positions along a long section of the Elbe. The content of solids was analyzed; in a number of samples, this was done by separating suspended and dissolved materials. Up to 38 elements were analyzed, whose local and time-dependent concentration curves are given. The contents of some elements are compared with the few available data from literature. Correlation calculations indicate a similar behaviour of single element groups and yield information on the natural origin of the trace elements and on anthropogenic influence to be noticed in the trace element contents. (orig.) [de

  3. Mitochondrial DNA provides evidence of a double origin for the stone crayfish Austropotamobius torrentium in the Elbe basin

    Czech Academy of Sciences Publication Activity Database

    Petrusek, A.; Pešek, P.; Leština, Dan; Martin, P.; Fischer, D.; Kozák, P.; Vlach, P.

    2017-01-01

    Roč. 62, JAN 01 (2017), s. 77-83 ISSN 0075-9511 Institutional support: RVO:60077344 Keywords : stone crayfish * Austropotamobius torrentium * Elbe basin Subject RIV: EB - Genetics ; Molecular Biology OBOR OECD: Genetics and heredity (medical genetics to be 3) Impact factor: 1.427, year: 2016 https://www.sciencedirect.com/science/article/pii/S0075951116300901

  4. Macrozoobenthos response to environmental degradation in a heavily modified stream: case study the Upper Elbe River, Czech Republic

    Czech Academy of Sciences Publication Activity Database

    Adámek, Zdeněk; Orendt, C.; Wolfram, G.; Sychra, J.

    2010-01-01

    Roč. 65, č. 3 (2010), s. 527-536 ISSN 0006-3088 Grant - others:6th Framework Programme EC(XE) MODELKEY (511237-GOCE) Institutional research plan: CEZ:AV0Z60930519 Keywords : macrozoobenthos * pollution * channelization * degradation * the Elbe River Subject RIV: EH - Ecology, Behaviour Impact factor: 0.609, year: 2010

  5. Modelling nutrient fluxes from source to river load : a macroscopic analysis applied to the Rhine and Elbe basins

    NARCIS (Netherlands)

    Wit, de M.

    2000-01-01

    In many European rivers, including the major streams of the Rhine and Elbe basins, the nutrient load (N and P) still exceeds target levels. In this paper, a model is presented that describes the river nutrient load as a function of nutrient sources, runoff and lithology in the upstream basin. The

  6. Bacterial and phytoplankton production in the maximum turbidity zone of three European estuaries: the Elbe, Westerschelde and Gironde

    NARCIS (Netherlands)

    Goosen, N.K.; Kromkamp, J.C.; Peene, J.; Van Rijswijk, P.; Van Breugel, P.

    1999-01-01

    Biomass and production of phytoplankton and heterotrophic bacteria in spring are presented for three turbid European estuaries, the Elbe (Germany), the Westerschelde (The Netherlands) and the Gironde (France), with emphasis on the effect of turbidity on microbial community densities and activities.

  7. Catchment-coastal zone interaction based upon scenario and model analysis: Elbe and the German Bight case study

    NARCIS (Netherlands)

    Hofmann, J.; Behrendt, H.; Gilbert, A.J.; Janssen, R.; Kannen, A.; Kappenberg, J.W.; Lenhart, H.; Lise, W.; Nunneri, C.; Windhorst, W.

    2005-01-01

    This paper presents a holistic strategy on the interaction of activities in the Elbe river basin and their effects on eutrophication in the coastal waters of the German Bight. This catchment-coastal zone interaction is the main target of the EUROCAT (EUROpean CATchments, catchment changes and their

  8. The Effects of Climate Change on Variability of the Growing Seasons in the Elbe River Lowland, Czech Republic

    Czech Academy of Sciences Publication Activity Database

    Potopová, V.; Zahradníček, Pavel; Türkot, L.; Štěpánek, Petr; Soukup, J.

    2015-01-01

    Roč. 2015, č. 546920 (2015), s. 546920 ISSN 1687-9309 R&D Projects: GA MŠk(CZ) EE2.3.20.0248 Institutional support: RVO:67179843 Keywords : Central Europe * extremes * climate change * growing seasons * Elbe River Lowland Subject RIV: DG - Athmosphere Sciences, Meteorology Impact factor: 1.107, year: 2015

  9. Monitoring and Deformation Analysis of Groynes Using Tls at the River Elbe

    Science.gov (United States)

    Tschirschwitz, F.; Mechelke, K.; Jansch, H.; Kersten, T. P.

    2016-06-01

    To enter the Port of Hamburg, one of Europe's busiest ports all vessels need to navigate around 145 km along the Elbe river, a tide influenced navigation channel. To protect the Elbe shoreline from erosion and to channel the waterway groynes (rigid hydraulic structures) have been built along the river. In the past years since ca. 2001 there has been a large increase in damage of groynes structural integrity at parts of the German waterways. The reason for this was determined in the ever growing size of container vessels passing by and inducing long periodical primary waves which have such a force that they erode the groynes rock structure. To analyse and improve the groynes structural resistance for vessel-induced long periodical wave loads an in-situ study is carried out at Juelssand, located at the Elbe river estuary. Over a period of two years the change of the geometrical structure of two different groyne shapes is monitored automatically by utilising two terrestrial laser scanners mounted in protective housings, located each on a 12 m high platform. The self-contained monitoring systems perform scanning of the two groynes one to two times a day at low tide, as the structures are fully submerged at high tide. The long-periodical wave loads are also determined using pressure sensors in each groyne. To correlate the captured data with vessel events and analyse the effects, vessel related parameters are recorded utilizing the Automatic Identification System (AIS). This paper describes the automated processes for the data acquisition and focusses on the deformation that is calculated using current, extended and new algorithms of the Point Cloud Library. It shows the process chain from the acquisition of raw scan files from an elevated station to the filtering of point cloud, the registration, the calculation of pointwise changes and the aggregation to a grid for later correlation with ship parameters. When working outdoor in all kinds of weather conditions, the

  10. High Resolution Measurements of Nitrous Oxide (N2O in the Elbe Estuary

    Directory of Open Access Journals (Sweden)

    Lisa Brase

    2017-05-01

    Full Text Available Nitrous oxide (N2O is one of the most important greenhouse gases and a major sink for stratospheric ozone. Estuaries are sites of intense biological production and N2O emissions. We aimed to identify hot spots of N2O production and potential pathways contributing to N2O concentrations in the surface water of the tidal Elbe estuary. During two research cruises in April and June 2015, surface water N2O concentrations were measured along the salinity gradient of the Elbe estuary by using a laser-based on-line analyzer coupled to an equilibrator. Based on these high-resolution N2O profiles, N2O saturations, and fluxes across the surface water/atmosphere interface were calculated. Additional measurements of DIN concentrations, oxygen concentration, and salinity were performed. Highest N2O concentrations were determined in the Hamburg port region reaching maximum values of 32.3 nM in April 2015 and 52.2 nM in June 2015. These results identify the Hamburg port region as a significant hot spot of N2O production, where linear correlations of AOU-N2Oxs indicate nitrification as an important contributor to N2O production in the freshwater part. However, in the region with lowest oxygen saturation, sediment denitrification obviously affected water column N2O saturation. The average N2O saturation over the entire estuary was 201% (SD: ±94%, with an average estuarine N2O flux density of 48 μmol m−2 d−1 and an overall emission of 0.18 Gg N2O y−1. In comparison to previous studies, our data indicate that N2O production pathways over the whole estuarine freshwater part have changed from predominant denitrification in the 1980s toward significant production from nitrification in the present estuary. Despite a significant reduction in N2O saturation compared to the 1980s, N2O concentrations nowadays remain on a high level, comparable to the mid-90s, although a steady decrease of DIN inputs occurred over the last decades. Hence, the Elbe estuary still

  11. Towers of the new 380 kV high-voltage overhead line across the Elbe

    Energy Technology Data Exchange (ETDEWEB)

    Kiessling, F; Sperl, H D; Wagemann, F

    1979-11-01

    As part of the European power transmission line between North Sweden and Southern Italy, a 380 kV rotary-current overhead line crosses the Elbe river south of Hamburg. To achieve the overhead clearance of 80 m required for navigation and the maximum line sag of 85 m, two steel trelliswork towers were constructed about 1200 m apart, each of them 227 m high. The 12 phases (cables) of the line are suspended each on three horizontal beams at a horizontal distance of 16 m. Exceptional loads far beyond the standards set in VDE 0210/5.69 have been assumed for the layout. In the case of the wind loads the frequent gales had to be considered; for ice loads, class I of the IEC/TC 11 Draft on Ice loading on Overhead Lines . Amsterdam 1977, was assumed. Some further loads are described as well as the tender procedure, supply and assembly of the towers.

  12. Determination of the origin of suspended matter and sediments in the Elbe estuary using natural tracers

    International Nuclear Information System (INIS)

    Schoer, J.H.

    1990-01-01

    The clay mineral composition, the concentrations of carbonates, the proportions of carbon and oxygen isotopes in carbonates and organic matter, as well as the concentrations of different nonanthropogenic metals were used to determine the origin of different grain size fractions of sediments and suspended matter in the Elbe estuary. Analysis of the smectite/kaolinite proportion revealed that solid material · 2 μm from the North Sea is transported up the river, about 40 km beyond the most upstream position of the salt wedge. In the 2-20 μm fraction, the 16 O/ 18 O ratio in carbonates and the kaolinite/chlorite proportion demonstrate a transport of North Sea material between 40 and 20 km upstream of the marine water limit. The transport behavior of the 20-63 μm grain size fraction could be determined by the hafnium concentration, representative for the heavy mineral zircon. In this case, the transport distance beyond the salt wedge was up to 20 km. No information was available on the origin of the fine organic matter, whereas the coarser fractions were derived primarily from debris of salt marsh vegetation. The results demonstrate that in the Elbe estuary mixing between marine and fluvial solid material occurs upstream of the salt wedge and is significantly responsible for the observed decrease in the concentration of various pollutants in sediments and suspended matter along the estuary. The cause of the upstream particle transport is probably a scour lag mechanism based on asymmetries of the flood- and ebb-tide current distribution, especially their differing maximum velocities

  13. Methylmercury compounds - main areas of contamination on a transsect of the river Elbe

    International Nuclear Information System (INIS)

    Hintelmann, H.; Wilken, R.D.

    1994-01-01

    The river Elbe and some of its tributaries are worldwide one of the most mercury polluted river systems. They are not only polluted by inorganic mercury compouns, but the contents of the highly toxic methylmercury compounds are also elevated. In order to determine the low levels of methylmercury compounds usually observed in sediments, a new HPLC/AFS-coupling was developed. In an oxidation/reduction interface the mercury species eluting from the HPLC collumn are transformed continuously to elemental mercury, which is then detected on-line by a highly sensitive atomic fluorescence spectrophotometer. The detection limit for the analysis of organic mercury species in sediments after extraction with hydrochloric acid/toluene, preconcentration and determination by HPLC/AFS is 0.1 μg/kg d. w. Hence, uncontaminated samples with very low methylmercury compounds contents could also be successfully analyzed. Main areas of total mercury contamination in the Elbe system were in the tributary rivers Saale and Mulde, with contents of up to 112 mg/kg d. w. but important emitters were also found in the Czech Republic (CR). This contamination was followed downstream to the Hamburg area and dropped to a background level of 0.06 mg/kg d. w. in the German Bight. The highest content of methylmercury compounds (119 μg/kg d. w.) was measured again in the river Mulde. The levels of methylmercury compounds were generally high at sites where the microbial activity was stimulated by high contents of organic matter, indicating a biotic methylation of mercury. The organic substrates originated either from municipal (sewage plants) or industrial sources (pulp mill effluents). (orig.) [de

  14. Kurz zum Klima: Zu viel Salz verdirbt den Boden

    OpenAIRE

    Zimmer, Markus; Lippelt, Jana; Frank, Jonas

    2012-01-01

    Der zunehmende Einsatz von Anlagen zur Bewässerung sowie mangelnde Erfahrungswerte und Unkenntnis über den richtigen Einsatz der künstlichen Bewässerung haben in den letzten Jahrzehnten zu einer massiven Zunahme der Versalzung des Bodens geführt. Durch diese Bodenversalzung werden weite Flächen für die Landwirtschaft unbrauchbar. Sie sind nur durch hohen Aufwand und Kosten wieder renaturierbar. Der Beitrag in der Reihe »Kurz zum Klima« gibt einen Überblick über die Versalzung in Anbaugebiet...

  15. Heavy metal transport in large river systems: heavy metal emissions and loads in the Rhine and Elbe river basins

    Science.gov (United States)

    Vink, Rona; Behrendt, Horst

    2002-11-01

    Pollutant transport and management in the Rhine and Elbe basins is still of international concern, since certain target levels set by the international committees for protection of both rivers have not been reached. The analysis of the chain of emissions of point and diffuse sources to river loads will provide policy makers with a tool for effective management of river basins. The analysis of large river basins such as the Elbe and Rhine requires information on the spatial and temporal characteristics of both emissions and physical information of the entire river basin. In this paper, an analysis has been made of heavy metal emissions from various point and diffuse sources in the Rhine and Elbe drainage areas. Different point and diffuse pathways are considered in the model, such as inputs from industry, wastewater treatment plants, urban areas, erosion, groundwater, atmospheric deposition, tile drainage, and runoff. In most cases the measured heavy metal loads at monitoring stations are lower than the sum of the heavy metal emissions. This behaviour in large river systems can largely be explained by retention processes (e.g. sedimentation) and is dependent on the specific runoff of a catchment. Independent of the method used to estimate emissions, the source apportionment analysis of observed loads was used to determine the share of point and diffuse sources in the heavy metal load at a monitoring station by establishing a discharge dependency. The results from both the emission analysis and the source apportionment analysis of observed loads were compared and gave similar results. Between 51% (for Hg) and 74% (for Pb) of the total transport in the Elbe basin is supplied by inputs from diffuse sources. In the Rhine basin diffuse source inputs dominate the total transport and deliver more than 70% of the total transport. The diffuse hydrological pathways with the highest share are erosion and urban areas.

  16. Spatial variability of metal pollution in groyne fields of the Middle Elbe – Implications for sediment monitoring

    International Nuclear Information System (INIS)

    Baborowski, M.; Büttner, O.; Morgenstern, P.; Jancke, T.; Westrich, B.

    2012-01-01

    High spatial heterogeneity of physical and chemical sediment properties was observed in both horizontal and vertical directions of deposits in a groyne field of the Middle Elbe. The respective sediment cores were less polluted on the top compared to consolidated deeper layers, indicating a decreasing trend of contamination in the river basin. In contrast to water quality monitoring, the impact of the large Elbe flood in 2002 was still visible in the deeper layers (5–30 cm) of the groyne field sediments six years after the event. Due to the fact that the environmental risk increases with erosion potential of discharge and contamination level of sediments, monitoring for environmental risk must capture not only surface sediments but also deeper layers up to an anticipated erosion depth. - Highlights: ► High spatial variability of physical and chemical sediment properties was observed. ► Depth depending patterns in sediment pollution were found. ► The patterns reveal the main pollution sources. ► Three main structures (top, barrier, consolidated layer) were indicated in the cores. ► Impact of the large Elbe flood (2002) is still visible in deeper sediment layers. - Monitoring of contaminated river sediments must capture layers up to an anticipated erosion depth.

  17. Institutional design and regime effectiveness in transboundary river management – the Elbe water quality regime

    Directory of Open Access Journals (Sweden)

    I. Dombrowsky

    2008-02-01

    Full Text Available The literature on transboundary river management suggests that institutions play an important role in bringing about cooperation. However, knowledge about how such institutions should be designed in order to do so remains limited. One way to learn more about adequate institutional design is to assess the effectiveness of existing regimes, and to trace the causal relationships that lead to the respective outcomes. In order to gain further insights into the relationship between institutional design and regime effectiveness, this paper presents a study on the water quality regime of the International Commission for the Protection of the Elbe (ICPE. The analysis is based on a review of pertinent documents and ten qualitative interviews with Czech and German Commission members and NGO representatives. Particular emphasis has been put on determining the ICPE's specific contribution and the no-regime counterfactual as well as on the perceived expediency of the institutional arrangements. The study shows overall that the countries were relatively successful in improving water quality in the Elbe basin. However, this outcome can only partly be attributed to the ICPE itself. Furthermore, the ICPE's contribution towards achieving the various goals varied significantly between the different areas of activity: it was relatively significant where the main responsibility for action lay with the public authorities, such as in the area of wastewater treatment and the establishment of an international alarm plan and model, but was practically non-existent in the reduction of non-point pollution from agriculture, where success depended on the behavior of individual private actors (farmers. The commission contributed towards problem solving by serving as a forum for the joint identification of priorities for action from a basin-wide perspective. The resulting international obligations increased the power of national water administrations and their access to funds

  18. Prokofieff: Kantate zum 20. Jahrestag der Oktoberrevolution, Op.74, Neeme Järvi / Joachim Salau

    Index Scriptorium Estoniae

    Salau, Joachim

    1993-01-01

    Uuest heliplaadist "Prokofieff: Kantate zum 20. Jahrestag der Oktoberrevolution, Op.74, Auszüge aus Das Märchen von der steinernen Blume. Gennadij Roshdestwenskij (Sprecher), Philharmonia Chorus, Philharmonia Orchestra, Neeme Järvi. Chandos/Koch CD 9095

  19. [Karin Hallas. Das Tallinner Mietshaus. Vom Historismus bis zum Jugendstil] / Paul Kaegbein

    Index Scriptorium Estoniae

    Kaegbein, Paul

    2006-01-01

    Arvustus: Karin Hallas. Das Tallinner Mietshaus. Vom Historismus bis zum Jugendstil. In: Architektur und bildende Kunst im Baltikum um 1900. Frankfurt am Main, Berlin, Bern, Bruxelles, New York, Wien: Lang 1999. S. 173-192.

  20. Tidal River Elbe - a sediment budget for the grain size fraction of medium sand

    Science.gov (United States)

    Winterscheid, Axel

    2016-04-01

    Human interventions have a historic and ongoing impact on estuarine sediment budgets across many estuaries worldwide. An early inference was the construction of embankments resulting in a constant loss of intertidal flats. Additionally, settlement activities and large scale land use changes in the upstream catchment areas had also an effect on sediment inflow rates. Today, the navigation channels in estuaries have been deepened for larger and more efficient vessels to reach a well-developed infrastructure of harbors and industrial areas often located far inland. In the past few years and just within the North-East Atlantic, the total annual amount of dredged sediments dumped at sea varied from 80 to 130 million tons (OSPAR Commission). In most estuaries across Europe the resulting human impact on the sediment fluxes and morphodynamics is significant. A good understanding of estuarine processes is essential for determining useful and meaningful measures to mitigate negative effects and to improve the current situation. Maintenance dredging and its environmental effects are therefore in the focus of public attention. Against this background, it is the aim of the presentation to identify and therefore to separate the particular effect that maintenance dredging has on sediment fluxes and budgets in the estuarine environment. Case study is the Tidal River Elbe in Germany, and here we set the focus on the grain size fraction of medium sand. In the past, river engineering measures forced the natural dynamics to form a concentrated stream flow along a fixed channel, except at a number of locations where side channels still exist. In addition to that, the main channel was deepened several times. The last deepening was in 1999/2000. The most significant deepening, however, took place from 1957 to 1962. Until then, an erosion-stable layer of marine clay (in German called "Klei") formed a flat bottom along most sections of the main channel. After removal of this layer of

  1. Airborne gamma anomalies in the Elbe Valley near Koenigstein, Germany - Origin and variation with time

    International Nuclear Information System (INIS)

    Ruhrmann, G.; Schmeling, B.; Schauer, M.; Gatzweiler, R.

    1997-01-01

    In 1982, an airborne gamma spectrometer survey was undertaken by SDAG WISMUT which was directed at the detection of further uranium mineralization in Saxony and Thuringia. Anomalies outlined along the Elbe river near the existing Koenigstein uranium mine were attributed to one or a combination of the following causes: radioactive residues from uranium processing facilities located upstream, temporary accumulation of Rn-decay products attached to dust particles in the atmosphere at the time of the survey, and radioactive waters emerging from uraniferous rocks along tectonic structures. In 1994, WISMUT GmbH re-evaluated the survey to determine the need for implementing cleanup measures. Subsequent to the verification of the original airborne data, ground surveys were undertaken that included gamma spectrometry, percussion probing and river sediment sampling. The new results did not confirm the magnitude of most of the 1982 airborne anomalies. The general decline of the radioactivity pointed out by the 1994 ground measurements is interpreted to be a result of the partial erosion and dilution of radionuclides in fluvial sediments as well as burial by additional river sediments since. Additional anomalous copper and zinc concentrations are attributed to sources other than mining. The ground follow-up delineated a new anomalous zone that is caused by radionuclides discharged with treated process and mine water. It is the only area, which may require further investigations and possible remedial action. (author)

  2. MRPC prototypes for NeuLAND tested using the single electron mode of ELBE/Dresden

    Energy Technology Data Exchange (ETDEWEB)

    Yakorev, Dmitry; Bemmerer, Daniel; Elekes, Zoltan; Kempe, Mathias; Stach, Daniel; Wagner, Andreas [Forschungszentrum Dresden-Rossendorf (FZD), Dresden (Germany); Aumann, Tom; Boretzky, Konstanze; Caesar, Christoph; Ciobanu, Mircea; Hehner, Joerg; Heil, Michael; Nusair, Omar; Reifarth, Rene; Simon, Haik [GSI, Darmstadt (Germany); Elvers, Michael; Maroussov, Vassili; Zilges, Andreas [Universitaet Koeln (Germany); Zuber, Kai [TU Dresden (Germany)

    2010-07-01

    The NeuLAND detector at the R{sup 3}B experiment at the future FAIR facility in Darmstadt aims to detect fast neutrons (0.2-1.0 GeV) with high time and spatial resolutions ({sigma}{sub t}<100 ps, {sigma}{sub x,y,z}<1 cm). Prototypes for the NeuLAND detector have been built at FZD and GSI and then studied using the 32 MeV pulsed electron beam at the superconducting electron accelerator ELBE in Dresden, Germany. Owing to the new, single-electron per bunch mode of operation, a rapid validation of the design criteria ({>=}90% efficiency for minimum ionizing particles, {sigma} {<=} 100 ps time resolution) was possible. Tested properties of the prototypes include glass thickness, spacing of the central anode, and a comparison of single-ended and differential readout. Tested frontend electronics schemes include FOPI (single-ended), PADI-based (both single-ended and differential mode tested), and ALICE (differential).

  3. Model based estimation of sediment erosion in groyne fields along the River Elbe

    International Nuclear Information System (INIS)

    Prohaska, Sandra; Jancke, Thomas; Westrich, Bernhard

    2008-01-01

    River water quality is still a vital environmental issue, even though ongoing emissions of contaminants are being reduced in several European rivers. The mobility of historically contaminated deposits is key issue in sediment management strategy and remediation planning. Resuspension of contaminated sediments impacts the water quality and thus, it is important for river engineering and ecological rehabilitation. The erodibility of the sediments and associated contaminants is difficult to predict due to complex time depended physical, chemical, and biological processes, as well as due to the lack of information. Therefore, in engineering practice the values for erosion parameters are usually assumed to be constant despite their high spatial and temporal variability, which leads to a large uncertainty of the erosion parameters. The goal of presented study is to compare the deterministic approach assuming constant critical erosion shear stress and an innovative approach which takes the critical erosion shear stress as a random variable. Furthermore, quantification of the effective value of the critical erosion shear stress, its applicability in numerical models, and erosion probability will be estimated. The results presented here are based on field measurements and numerical modelling of the River Elbe groyne fields.

  4. Das migrationspolitische Feld der Schweiz: eine politikwissenschaftliche Analyse der Vernehmlassung zum Arbenzbericht

    OpenAIRE

    Mahnig, Hans

    2007-01-01

    Der Bericht, vom Bundesamt für Flüchtlinge (BFF) in Auftrag gegeben, stellt eine politikwissenschaftliche Analyse der Vernehmlassung zum Bericht Arbenz vom Mai 1995 dar, welche parallel zur Auswertung durch das BFF selbst unternommen wurde. Er hat zum Ziel, die zentralen Konflikt- und Konsensfelder in der gegenwärtigen migrationspolitischen Auseinandersetzung der Schweiz herauszuarbeiten. Die wichtigsten Resultate der Analyse sind die folgenden: Die Internationale Flüchtlingspolitik und die A...

  5. Determination of the fast-neutron-induced fission cross-section of 242Pu at nELBE

    Science.gov (United States)

    Kögler, Toni; Beyer, Roland; Junghans, Arnd R.; Schwengner, Ronald; Wagner, Andreas

    2018-03-01

    The fast-neutron-induced fission cross section of 242Pu was determined in the energy range of 0.5 MeV to 10MeV at the neutron time-of-flight facility nELBE. Using a parallel-plate fission ionization chamber this quantity was measured relative to 235U(n,f). The number of target nuclei was thereby calculated by means of measuring the spontaneous fission rate of 242Pu. An MCNP 6 neutron transport simulation was used to correct the relative cross section for neutron scattering. The determined results are in good agreement with current experimental and evaluated data sets.

  6. Determination of the fast-neutron-induced fission cross-section of 242Pu at nELBE

    Directory of Open Access Journals (Sweden)

    Kögler Toni

    2018-01-01

    Full Text Available The fast-neutron-induced fission cross section of 242Pu was determined in the energy range of 0.5 MeV to 10MeV at the neutron time-of-flight facility nELBE. Using a parallel-plate fission ionization chamber this quantity was measured relative to 235U(n,f. The number of target nuclei was thereby calculated by means of measuring the spontaneous fission rate of 242Pu. An MCNP 6 neutron transport simulation was used to correct the relative cross section for neutron scattering. The determined results are in good agreement with current experimental and evaluated data sets.

  7. Total Mercury and Methylmercury Contamination in Fish from Sites along the Elbe River

    Directory of Open Access Journals (Sweden)

    P. Maršálek

    2006-01-01

    Full Text Available The aim of the study was to evaluate total mercury Hg and methylmercury MeHg contamination in muscle tissues of fish collected in 2002 from the Labe (Elbe river at sites upstream of Pardubice and downstream of Pardubice and Hřensko, and in 2004 from the Labe river upstream and downstream of the Spolana factory in Neratovice, and from the Vltava river downstream of Lenora. Eighty eight fish of the following species were sampled: bream (Abramis brama L., perch (Perca fluviatilis L., chub (Leuciscus cephalus L. and barbel (Barbus barbus L.. Total mercury content in chub, perch and bream was in the range of 0.05 - 1.96 mg kg-1 w.w., 0. 09 - 1.46 mg kg-1 w.w. and 0.35 - 0.82 mg kg-1 w.w., respectively. Methylmercury content in chub, perch and bream was in the range of 0.04 - 2.11 mg kg-1 w.w., 0.1 - 1.73 mg kg-1 w.w. and 0.371 - 0.650 mg kg-1 w.w., respectively. Significant correlation (p p < 0.05 between THg and MeHg contents were found between individual sites. In 2002, for example, the most contaminated fish were found downstream of Pardubice, followed by fish from upstream of Pardubice and from Hřensko. In 2004, fish from downstream and upstream of the Spolana factory in Neratovice were more contaminated than fish from the Vltava river downstream of Lenora. The methylmercury-tototal mercury ratio in muscle tissue was close to 1.0.

  8. Optimization aspects of the new nELBE photo-neutron source

    Directory of Open Access Journals (Sweden)

    Schwengner R.

    2010-10-01

    Full Text Available The nELBE beamline at Forschungszentrum Dresden-Rossendorf (FZD provides intense neutron beams by stopping primary electrons in a liquid lead target, where neutrons are produced by bremsstrahlung photons via (γ,n reactions. With the aim to increase the neutron yield through the enhancement of the electron beam energy (from the current 40 MeV limit up to 50 MeV, as well as to minimize several sources of background that are presently affecting the measurements, a new neutron beam-line and a new, larger neutron experimental room have been designed. The optimization of the neutron/photon ratio, the minimization of the backscattered radiation from the walls and the possibility to have better experimental conditions are the main advantages of the new design. To optimize the beamline, extensive simulations with the particle interaction and transport code FLUKA have been performed. Starting from the primary electron beam, both the photon and neutron radiation fields have been fully characterized. To have a cross-check of the results, the calculated values of the neutron yields at different energies of the primary beam have been compared both with an independent simulation with the MCNP code and with analytical calculations, obtaining a very satisfactory agreement at the level of few percent. The evaluated radiation fields have been used to optimize the direction of the new neutron beamline, in order to minimize the photon flash contribution. A general overview of the new photo-neutron source, together with all the steps of the optimization study, is here presented and discussed.

  9. Fipronil and two of its transformation products in water and European eel from the river Elbe.

    Science.gov (United States)

    Michel, N; Freese, M; Brinkmann, M; Pohlmann, J-D; Hollert, H; Kammann, U; Haarich, M; Theobald, N; Gerwinski, W; Rotard, W; Hanel, R

    2016-10-15

    Fipronil is an insecticide which, based on its mode of action, is intended to be predominantly toxic towards insects. Fipronil bioaccumulates and some of its transformation products were reported to be similar or even more stable in the environment and to show an enhanced toxicity against non-target organisms compared to the parent compound. The current study investigated the occurrence of Fipronil and two of its transformation products, Fipronil-desulfinyl and Fipronil-sulfone, in water as well as muscle and liver samples of eels from the river Elbe (Germany). In water samples total concentrations of FIP, FIP-d and FIP-s ranged between 0.5-1.6ngL(-1) with FIP being the main component in all water samples followed by FIP-s and FIP-d. In contrast, FIP-s was the main component in muscle and liver tissues of eels with concentrations of 4.05±3.73ngg(-1) ww and 19.91±9.96ngg(-1) ww, respectively. Using a physiologically based toxicokinetic (PBTK) model for moderately hydrophobic organic chemicals, the different distributions of FIP, FIP-d and FIP-s in water and related tissue samples could be attributed to metabolic processes of eels. The measured concentrations in water of all analytes and their fractional distribution did not reflect the assumed seasonal application of FIP and it seems that the water was constantly contaminated with FIP, FIP-d and FIP-s. Copyright © 2016 Elsevier B.V. All rights reserved.

  10. Modeling Climate and Management Change Impacts on Water Quality and In-Stream Processes in the Elbe River Basin

    Directory of Open Access Journals (Sweden)

    Cornelia Hesse

    2016-01-01

    Full Text Available Eco-hydrological water quality modeling for integrated water resources management of river basins should include all necessary landscape and in-stream nutrient processes as well as possible changes in boundary conditions and driving forces for nutrient behavior in watersheds. The study aims to assess possible impacts of the changing climate (ENSEMBLES climate scenarios and/or land use conditions on resulting river water quantity and quality in the large-scale Elbe river basin by applying a semi-distributed watershed model of intermediate complexity (SWIM with implemented in-stream nutrient (N+P turnover and algal growth processes. The calibration and validation results revealed the ability of SWIM to satisfactorily simulate nutrient behavior at the watershed scale. Analysis of 19 climate scenarios for the whole Elbe river basin showed a projected increase in temperature (+3 °C and precipitation (+57 mm on average until the end of the century, causing diverse changes in river discharge (+20%, nutrient loads (NO3-N: −5%; NH4-N: −24%; PO4-P: +5%, phytoplankton biomass (−4% and dissolved oxygen concentration (−5% in the watershed. In addition, some changes in land use and nutrient management were tested in order to reduce nutrient emissions to the river network.

  11. Assessment of water quality in the elbe river at flood water conditions based on cluster analysis, principle components analysis, and source apportionment

    Energy Technology Data Exchange (ETDEWEB)

    Baborowski, Martina [Department of River Ecology, UFZ-Helmholtz Centre for Environmental Research, Magdeburg (Germany); Simeonov, Vasil [Faculty of Chemistry, University of Sofia, Sofia (Bulgaria); Einax, Juergen W. [Institute of Inorganic and Analytical Chemistry, Friedrich Schiller University of Jena, Jena (Germany)

    2012-04-15

    An assessment of water quality measurements during a spring flood in the Elbe River is presented. Daily samples were taken at a site in the middle Elbe, which is part of the network of the International Commission for the Protection of the Elbe River (IKSE/MKOL). Cluster analysis (CA), principal components analysis (PCA), and source apportionment (APCS apportioning) were used to assess the flood-dependent matter transport. As a result, three main components could be extracted as important to the matter transport in the Elbe River basin during flood events: (i) re-suspended contaminated sediments, which led to temporarily increased concentrations of suspended matter and of most of the investigated heavy metals; (ii) water discharge related concentrations of pedogenic dissolved organic matter (DOM) as well as preliminary diluted concentrations of uranium and chloride, parameters with stable pollution background in the river basin; and (iii) abandoned mines, i.e., their dewatering systems, with particular influence on nickel, manganese, and zinc concentrations. (Copyright copyright 2012 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim)

  12. Assessment of water quality in the elbe river at flood water conditions based on cluster analysis, principle components analysis, and source apportionment

    International Nuclear Information System (INIS)

    Baborowski, Martina; Simeonov, Vasil; Einax, Juergen W.

    2012-01-01

    An assessment of water quality measurements during a spring flood in the Elbe River is presented. Daily samples were taken at a site in the middle Elbe, which is part of the network of the International Commission for the Protection of the Elbe River (IKSE/MKOL). Cluster analysis (CA), principal components analysis (PCA), and source apportionment (APCS apportioning) were used to assess the flood-dependent matter transport. As a result, three main components could be extracted as important to the matter transport in the Elbe River basin during flood events: (i) re-suspended contaminated sediments, which led to temporarily increased concentrations of suspended matter and of most of the investigated heavy metals; (ii) water discharge related concentrations of pedogenic dissolved organic matter (DOM) as well as preliminary diluted concentrations of uranium and chloride, parameters with stable pollution background in the river basin; and (iii) abandoned mines, i.e., their dewatering systems, with particular influence on nickel, manganese, and zinc concentrations. (Copyright copyright 2012 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim)

  13. Impact of a flood disaster on sediment toxicity in a major river system - the Elbe flood 2002 as a case study

    International Nuclear Information System (INIS)

    Oetken, Matthias; Stachel, Burkhard; Pfenninger, Markus; Oehlmann, Joerg

    2005-01-01

    The ecotoxicological implications of a flooding disaster were investigated with the exceptional Elbe flood in August 2002 as an example. Sediment samples were taken shortly after the flood at 37 sites. For toxicity assessment the midge Chironomus riparius (Insecta) and the mudsnail Potamopyrgus antipodarum (Gastropoda) were exposed to the sediment samples for 28 days. For a subset of 19 sampling sites, the contamination level and the biological response of both species were also recorded before the flood in 2000. The direct comparison of biological responses at identical sites revealed significant differences for samples taken before and immediately after the flood. After flood sediments of the river Elbe caused both higher emergence rates in the midge and higher numbers of embryos in the mudsnail. Contrary to expectations the toxicity of the sediments decreased after the flood, probably because of a dilution of toxic substances along the river Elbe and a reduction in bioavailability of pollutants as a result of increasing TOC values after the flood. - The extraordinary Elbe flood in August 2002 did not result in an overall increase of environmental contamination

  14. KidSmart - Medienkompetent zum Schulübergang

    Directory of Open Access Journals (Sweden)

    Anita Müller

    2012-03-01

    Full Text Available In Deutschland zeichnet sich bereits vor Schuleintritt im Bereich der literarischen und medialen Sozialisation eine Bildungsbenachteiligung ab. Vor allem Kinder aus bildungsfernen Milieus und mit Migrationshintergrund sind hiervon betroffen (vgl. Becker/Lauterbach 2004; Diefenbach 2007; Rabe-Kleberg 2010. An dieser Einsicht knüpft das Forschungs- und Interventionsprojekt KidSmart – Medienkompetent zum Schulübergang an. Medienpädagogische Arbeit steht hier im Kontext der Vorbereitung auf den Schulübergang. Durch kreative Medienarbeit soll ein Gegengewicht zur eher passiven Mediennutzung geschaffen werden. Ziel ist es Bildungsunterschiede von Kindern bereits vor Schulbeginn auszugleichen.Already before starting school educational disadvantages in the part of reading and media socialization can be identified within Germany. Generally affected are children of less educated families and children with migration background (Becker/Lauterbach 2004; Diefenbach 2007; Rabe-Kleberg 2010. Therefore, an exceptional intervention and research project KidSmart – media competence by entering school was initiated in the area of early childhood education. Within this project media-pedagogical work is corresponding with preparation of entering school. The intention is to create a counterbalance to passive media use by creative media work. The scope of the project is to fight against early educational disadvantages.

  15. Landeskundeunterricht zum Nationalsozialismus. Ein Praxisbericht aus der Mongolei

    Directory of Open Access Journals (Sweden)

    Ralf Heimrath

    2015-03-01

    Full Text Available In einer Umfrage bei den fortgeschrittenen Studierenden an der Deutschen Abteilung der Nationaluniversität der Mo n- golei wurde festgestellt, dass der Name Hitler sehr bekannt und mit e iner positiven Konnotation verbunden ist. Dagegen gab es keine Kenntnisse über die Zeit des Nationalsozialismus in Deutschland. Mehrere weitere Beobachtungen lassen darüber hinaus in der Mongolei und in anderen Ländern eine bestimmte Hitler - Verehrung erken nen. Vor diesem Hintergrund wurde im Jahr 2012 an der Deutschen Abteilung der Nationaluniversität der Mongolei eine Unterricht s- sequenz zum Thema Nationalsozialismus in Deutschland durchgeführt. Die wichtigsten Themen sind dabei die Persönlichkeit des Dikt ators, der Werdegang der NSDAP während der Weimarer Republik und das Schicksal der jüdischen Bevölkerung in Deutschland vor und insbesondere nach der Machtergreifung Hitlers. Die Sequenz dient der Relativierung des Hitler - Bildes im Bewusstsein der Studiere nden und der Vermittlung von Kenntnissen zur Geschichte des 20. Jahrhunderts als Grundlage einer Entwicklung, die zu zwei deutschen Staaten und ihrer späteren Vereinigung führte. Die Sequenz ist auf vergleichbare Unterrichtssituationen in anderen Ländern übertragbar.

  16. Teilchen, Felder, Quanten von der Quantenmechanik zum Standardmodell der Teilchenphysik

    CERN Document Server

    Ecker, Gerhard

    2017-01-01

    Dieses Buch bietet Ihnen eine Einführung in den aktuellen Stand unseres Wissens über die Struktur der Materie. Gerhard Ecker beschreibt verständlich die Entwicklung der modernen Physik vom Beginn des Quantenzeital­ters bis zum Standardmodell der Teilchenphysik, der umfassenden Theorie der fundamentalen Wechselwir­kungen des Mikrokosmos. Dabei wird der Schwerpunkt auf die wichtigsten Entdeckungen und Entwicklungen, beispielsweise der Quantenfeldtheorie, der Eichtheorien und die Zukunft der Teilchenphysik, gelegt. Besonders hebt der Autor auch das Wechselspiel zwischen Theorie und Experiment hervor, die uns helfen, die tiefsten Rätsel der Natur zu ergründen. Teilchen, Felder, Quanten ist für alle geschrieben, die Freude an der Physik haben. Es bietet Abitu­rienten und Studierenden der Physik in den ersten Semestern einen Ansporn, die Physik tiefer zu verstehen. Lehrer und andere an der Phy­sik Interessierte werden darin nützliche Einblicke in die Welt der Teilchenphysik finden. Für Studierende in ...

  17. Test of Compton camera components for prompt gamma imaging at the ELBE bremsstrahlung beam

    Science.gov (United States)

    Hueso-González, F.; Golnik, C.; Berthel, M.; Dreyer, A.; Enghardt, W.; Fiedler, F.; Heidel, K.; Kormoll, T.; Rohling, H.; Schöne, S.; Schwengner, R.; Wagner, A.; Pausch, G.

    2014-05-01

    In the context of ion beam therapy, particle range verification is a major challenge for the quality assurance of the treatment. One approach is the measurement of the prompt gamma rays resulting from the tissue irradiation. A Compton camera based on several position sensitive gamma ray detectors, together with an imaging algorithm, is expected to reconstruct the prompt gamma ray emission density map, which is correlated with the dose distribution. At OncoRay and Helmholtz-Zentrum Dresden-Rossendorf (HZDR), a Compton camera setup is being developed consisting of two scatter planes: two CdZnTe (CZT) cross strip detectors, and an absorber consisting of one Lu2SiO5 (LSO) block detector. The data acquisition is based on VME electronics and handled by software developed on the ROOT framework. The setup has been tested at the linear electron accelerator ELBE at HZDR, which is used in this experiment to produce bunched bremsstrahlung photons with up to 12.5 MeV energy and a repetition rate of 13 MHz. Their spectrum has similarities with the shape expected from prompt gamma rays in the clinical environment, and the flux is also bunched with the accelerator frequency. The charge sharing effect of the CZT detector is studied qualitatively for different energy ranges. The LSO detector pixel discrimination resolution is analyzed and it shows a trend to improve for high energy depositions. The time correlation between the pulsed prompt photons and the measured detector signals, to be used for background suppression, exhibits a time resolution of 3 ns FWHM for the CZT detector and of 2 ns for the LSO detector. A time walk correction and pixel-wise calibration is applied for the LSO detector, whose resolution improves up to 630 ps. In conclusion, the detector setup is suitable for time-resolved background suppression in pulsed clinical particle accelerators. Ongoing tasks are the quantitative comparison with simulations and the test of imaging algorithms. Experiments at proton

  18. Test of Compton camera components for prompt gamma imaging at the ELBE bremsstrahlung beam

    International Nuclear Information System (INIS)

    Hueso-González, F; Golnik, C; Berthel, M; Dreyer, A; Enghardt, W; Kormoll, T; Rohling, H; Pausch, G; Fiedler, F; Heidel, K; Schöne, S; Schwengner, R; Wagner, A

    2014-01-01

    In the context of ion beam therapy, particle range verification is a major challenge for the quality assurance of the treatment. One approach is the measurement of the prompt gamma rays resulting from the tissue irradiation. A Compton camera based on several position sensitive gamma ray detectors, together with an imaging algorithm, is expected to reconstruct the prompt gamma ray emission density map, which is correlated with the dose distribution. At OncoRay and Helmholtz-Zentrum Dresden-Rossendorf (HZDR), a Compton camera setup is being developed consisting of two scatter planes: two CdZnTe (CZT) cross strip detectors, and an absorber consisting of one Lu 2 SiO 5 (LSO) block detector. The data acquisition is based on VME electronics and handled by software developed on the ROOT framework. The setup has been tested at the linear electron accelerator ELBE at HZDR, which is used in this experiment to produce bunched bremsstrahlung photons with up to 12.5 MeV energy and a repetition rate of 13 MHz. Their spectrum has similarities with the shape expected from prompt gamma rays in the clinical environment, and the flux is also bunched with the accelerator frequency. The charge sharing effect of the CZT detector is studied qualitatively for different energy ranges. The LSO detector pixel discrimination resolution is analyzed and it shows a trend to improve for high energy depositions. The time correlation between the pulsed prompt photons and the measured detector signals, to be used for background suppression, exhibits a time resolution of 3 ns FWHM for the CZT detector and of 2 ns for the LSO detector. A time walk correction and pixel-wise calibration is applied for the LSO detector, whose resolution improves up to 630 ps. In conclusion, the detector setup is suitable for time-resolved background suppression in pulsed clinical particle accelerators. Ongoing tasks are the quantitative comparison with simulations and the test of imaging algorithms. Experiments at proton

  19. Leben mit Estland : Paul-Gerhard von Hoerschelmann zum 80. Geburtstag / Heinrich Wittram

    Index Scriptorium Estoniae

    Wittram, Heinrich

    2012-01-01

    Olles Põhja-Elbe Jutlustajate Seminari direktor alustas Paul-Gerhard von Hoerschelmann koostööd Eesti Evangeelse Luterliku Kirikuga 1988. aastal. Nõmmel sündinud pastori pojana olid tal selle koostöö arendamiseks igati head eeldused. 1997. aastal sai Paul-Gerhard Hoerschelmannist EELK Usuteaduse Instituudi rektor. Aastatel 1996-1998 teenis ta väikesearvulist saksakeelset kogudust Tallinnas. Aastast 2006 EELK' aupraost

  20. Detrital thermochronology of Rhine, Elbe and Meuse river sediment (Central Europe): implications for provenance, erosion and mineral fertility

    Science.gov (United States)

    Glotzbach, C.; Busschers, F. S.; Winsemann, J.

    2018-03-01

    Here we present detrital apatite fission track (AFT), zircon fission track (ZFT) and a few apatite (U-Th)/He (AHe) data of Middle Pleistocene to modern Rhine, Meuse and Elbe river sediments in order to resolve processes that control detrital age distributions (provenance, erosion and mineral fertility). We used a modelling approach to compare observed with theoretically predicted age distributions from an interpolated in situ AFT and ZFT age map. In situ cooling ages do show large differences in the Rhine drainage basin, facilitating the differentiation between different source regions. Inconsistencies between observed and theoretical age distributions of the Meuse and Elbe samples can be explained by mixing and reworking of sediments with different provenances (Meuse Middle Pleistocene terrace sediment) and a yet unexplored source region with old AFT ages (Elbe samples). Overall, the results show that detrital thermochronology is capable of identifying the provenance of Middle Pleistocene to modern sediments. The AFT age distributions of Rhine sediments are dominated ( 70%) by AFT ages representing the Alps. A possible explanation is higher erosion rates in the Alps as compared to areas outside the Alps. A Late Pleistocene sample from the Upper Rhine Graben contains apatite grains from the Molasse and Hegau volcanics, which we explain with a shift of the headwaters of the Rhine to the north as a result of intense Middle Pleistocene Riss glaciation. Contrary to the observed dominance of Alpine-derived AFT ages in Rhine sediments, the relative contribution of zircon ages with sources in the Alps is lower and significantly decreases downstream, suggesting a major source of zircons outside the Alps. This can be explained by increased zircon fertility of sediments derived from the Rhenish massif. Therefore, we conclude that erosion and mineral fertility are the main processes controlling detrital AFT and ZFT age distributions of the sampled river sediment. In case of

  1. Temperature profile data collected using XBTs from the ELBE EXPRESS and other platforms from the Pacific Ocean during the Thermal Structure Monitoring Program in the Pacific (TRANSPAC) project, 1985-01-21 to 1985-04-23 (NODC Accession 8500165)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Temperature profile data were collected using bathythermograph (BT/XBT) casts from ELBE EXPRESS and other platforms in the Pacific Ocean from January 21, 1985 to...

  2. Temperature profile data collected using XBTs from the ELBE EXPRESS and other platforms from the Pacific Ocean during the Thermal Structure Monitoring Program in the Pacific (TRANSPAC) project, 1983-12-03 to 1986-01-29 (NODC Accession 8600103)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Temperature profile data were collected using bathythermograph (BT/XBT) casts from ELBE EXPRESS and other platforms in the Pacific Ocean from December 3, 1983 to...

  3. Temperature profile data collected using XBTs from the ELBE EXPRESS and other platforms from the Pacific Ocean during the Thermal Structure Monitoring Program in the Pacific (TRANSPAC) project, 1985-02-19 to 1985-08-20 (NODC Accession 8500185)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Temperature profile data were collected using bathythermograph (BT/XBT) casts from ELBE EXPRESS and other platforms in the Pacific Ocean from February 19, 1985 to...

  4. Temperature profile data collected using XBTs from the ELBE EXPRESS and other platforms from the Pacific Ocean during the Thermal Structure Monitoring Program in the Pacific (TRANSPAC) project, 1985-01-02 to 1985-03-19 (NODC Accession 8500081)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Temperature profile data were collected using bathythermograph (BT/XBT) casts from ELBE EXPRESS and other platforms in the Pacific Ocean from January 2, 1985 to...

  5. Sensitivity mapping for oil spill response at the estuaries of the rivers Eider, Elbe, Weser and Ems; Sensitivitaetskartierung zur Oelbekaempfung an den Unterlaeufen von Eider, Elbe, Weser und Ems

    Energy Technology Data Exchange (ETDEWEB)

    Bernem, K.H. van; Krasemann, H. [GKSS-Forschungszentrum Geesthacht GmbH (Germany). Inst. fuer Kuestenforschung; Fleischmann, J.; Krueger, D.; Luebbe, T.P.

    2007-07-01

    During this project the estuaries of the rivers Eider, Elbe, Weser and Ems, meeting the North Sea, were evaluated with respect to their vulnerability against oil accidents. Thus a corresponding intention concerning the ''Wadden Sea'' at the German North Sea Coast could be proceeded and completed (GKSS 2007/2). The assessment of different watersides shall provide decision support for oil spill response. Only comparatively near-natural areas of river banks were incorporated, with the basic evaluation of their importance for nature conservation as well as their oil spill sensitivity. Socioeconomic characteristics have not been evaluated, but some important properties are depicted on charts by symbols. The data used for the evaluation process cover the types of biotopes, tidal flats, nesting/non-nesting birds, rare plants as well as fishes, morphological conditions of watersides and official area-categories (i.e. protected natural area). Riverine and intertidal areas are fundamentally differentiated. With respect to seasonal aspects, the evaluation was established for three different times of the year. The result of the evaluation process is the classification of the individual watersides into 4 classes of priority (for oil spill response) and 8 classes of sensitivity. The priorityclasses are depicted by colours and the sensitivity-classes by numbers on sea-charts as topographic background (scale 1:25.000). The evaluation results are delayed on printed as well as GIS-based maps, connected to a data base. The amount of very sensitive areas is higher in the estuaries of the rivers Elbe and Eider compared to Ems and Weser and shows the highest values at all rivers during spring. The evaluation procedure is automated to a large extend by use of linked tables and a decision tree of if/then-functions. The underlying structure provides for a reliable transformation of new data into the corresponding evaluation during updating processes. (orig.)

  6. Effects of Reduced Summer Precipitation on Productivity and Forage Quality of Floodplain Meadows at the Elbe and the Rhine River

    Science.gov (United States)

    Ludewig, Kristin; Donath, Tobias W.; Zelle, Bianka; Eckstein, R. Lutz; Mosner, Eva; Otte, Annette; Jensen, Kai

    2015-01-01

    Background Floodplain meadows along rivers are semi-natural habitats and depend on regular land use. When used non-intensively, they offer suitable habitats for many plant species including rare ones. Floodplains are hydrologically dynamic ecosystems with both periods of flooding and of dry conditions. In German floodplains, dry periods may increase due to reduced summer precipitation as projected by climate change scenarios. Against this background, the question arises, how the forage quantity and quality of these meadows might change in future. Methods We report results of two field trials that investigated effects of experimentally reduced summer precipitation on hay quantity and quality of floodplain meadows at the Rhine River (2011-2012) and at two Elbe tributaries (2009-2011). We measured annual yield, the amount of hay biomass, and contents of crude protein, crude fibre, energy, fructan, nitrogen, phosphorus, and potassium. Results The annual yield decreased under precipitation reduction at the Rhine River. This was due to reduced productivity in the second cut hay at the Rhine River in which, interestingly, the contents of nitrogen and crude protein increased. The first cut at the Rhine River was unaffected by the treatments. At the Elbe tributaries, the annual yield and the hay quantity and quality of both cuts were only marginally affected by the treatments. Conclusion We conclude that the yield of floodplain meadows may become less reliable in future since the annual yield decreased under precipitation reduction at the Rhine River. However, the first and agriculturally more important cut was almost unaffected by the precipitation reduction, which is probably due to sufficient soil moisture from winter/spring. As long as future water levels of the rivers will not decrease during spring, at least the use of the hay from the first cut of floodplain meadows appears reliable under climate change. PMID:25950730

  7. Fluktuationen der Fischfauna im Elbe-Ästuar als Indikator für ein gestörtes Ökosystem

    Science.gov (United States)

    Köhler, Angela

    1981-09-01

    During 1978, 22 fish species (in particular Anguilla anguilla L., Platichthys flesus L., Osmerus eperlanus L., Gasterosteus aculeatus L., Lampetra fluviatilis L., Alosa fallax [Lacepede], Gymnocephalus cernua L., Clupea harengus L. and Sprattus sprattus L.), sampled at the intake of the cooling system in the nuclear power plant at Brunsbüttel (Elbe estuary), were analyzed for quantities and size distribution. The data obtained were correlated to abiotic factors, such as water temperature, water outflow from the upper Elbe river, salinity and oxygen content. Spawning times and seasonal migrations of the fish species investigated corresponded to appropriate temperatures of the Elbe water. The diversity of fish species from the cooling water proved to be representative for the ichthyo-fauna of this particular estuarine area. At least 190 tons of fish per year were estimated to be annihilated by the suction of cooling water into the nuclear power plant. In spite of the progressive development of regional industries and the increasing discharges of cooling water, temperature in the estuary has remained largely unaffected up till now. The oxygen content of the heavily polluted lower Elbe river, however, has become mainly dependent on the amount of fresh water flowing from the upper Elbe river. Up to 1978, oxygen levels of 80 90 % were recorded only in the mouth of the Elbe, thus meeting the requirements for the continuous occurrence of fish species typical for this estuarine area. Varying oxygen concentrations downstream of Hamburg and at Brunsbüttel are considered to be responsible for migrations of certain fish species (mainly flounder and smelt) between the Brunsbüttel region and their habitats further upstream which were occupied before the process of industrialisation initiated. This was reflected by the size of the samples taken from various fishes. During an eventual hazard of the industrial filter plants at Brunsbüttel in May 1978 an extreme oxygen depletion

  8. Behaviour of suspended particulate matter (SPM and selected trace metals during the 2002 summer flood in the River Elbe (Germany at Magdeburg monitoring station

    Directory of Open Access Journals (Sweden)

    M. Baborowski

    2004-01-01

    Full Text Available In August 2002, in the worst flooding in more than 100 years, the River Elbe destroyed built-up areas and caused widespread erosion and the relocation of soils and river sediments. To assess the pollutants entering the water, surveys of dissolved constituents and suspended particulate matter (SPM were carried out daily during the flood at a monitoring station near Magdeburg. The sampling point is part of the network of the International Commission for the Protection of the Elbe (ICPE. The results were compared with those of previous flood studies which used the same sampling strategy. Unlike past floods, the 2002 flood was characterised by the transport of relatively fine suspended material with a low mass concentration. Owing to different input sources, the maxima of dry weight and of particle number concentration occurred at different times. Hg, Fe, Mn, Zn, Cu, Ni and Cr showed a maximum concentration concurrent with the dry weight of the SPM, whereas the maximum concentrations of As, Pb, and Cd coincided with the particle number concentration peak. The concentration of particulate matter decreased rapidly, unlike the concentrations of dissolved substances such as DOC and trace metals, as well as the values of UV extinction, all of which remained high for a longer period. Comparing the results of the 2002 flood with the winter floods in 1995, 1999 and 2000, revealed increased values of As and Pb as well as higher concentrations of dissolved compounds. Keywords: river, flood, transport, suspended particulate matter, trace metals, dissolved compounds, Elbe

  9. 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.)

  10. Zum Entwicklungsstand und zu Entwicklungsproblemen unserer Jugend - 1987 : Forschungsergebnisse - Beobachtungen - Überlegungen in 10 Thesen

    OpenAIRE

    Friedrich, Walter

    1987-01-01

    Dieser Bericht gibt in zehn Thesen einen Überblick über Forschungsergebnisse, Beobachtungen und Überlegungen zum Entwicklungsstand der DDR-Jugend im Jahre 1987. Diese sei "in ihrer großen Mehrheit durch ein hohes Niveau ihrer sozialistischen Persönlichkeitsentwicklung charakterisiert". Kritisiert wird die Rolle der FDJ, die die Interessenvertretung der Jugend nicht ausreichend wahrnehme. Weiterhin nehme die Rezeption westlicher Rundfunk- und Fernsehsendungen immer mehr zu, jedoch sei es verbo...

  11. Pädagogik als Kulturwissenschaft. Programmatische Überlegungen zum Status der Allgemeinen Erziehungswissenschaft

    OpenAIRE

    Wimmer, Michael

    2002-01-01

    Ausgehend von einer schlaglichtartigen Charakterisierung gegenwärtiger Transformationsprozesse, die nicht nur zu grundlegenden Wandlungen in den gesellschaftlichen Verhältnissen und im kulturellen Selbstverständnis geführt haben, sondern auch die Prämissen ihrer begrifflichen Identifizierbarkeit und einer reflexiven Selbstvergewisserung erschüttern, wird die interne Situation der Erziehungswissenschaft skizziert, die sich ebenfalls dilemmatisch darstellt. Denn zum einen haben neuere Theorieen...

  12. Spatial and temporal variability of sediment deposition on artificial-lawn traps in a floodplain of the River Elbe

    Energy Technology Data Exchange (ETDEWEB)

    Baborowski, M. [Department of River Ecology, Helmholtz Centre for Environmental Research - UFZ, Brueckstrasse 3a, 39114 Magdeburg (Germany)]. E-mail: martina.baborowski@ufz.de; Buettner, O. [Department of Lake Research, Helmholtz Centre for Environmental Research - UFZ, Brueckstrasse 3a, 39114 Magdeburg (Germany); Morgenstern, P. [Department of Analytical Chemistry, Helmholtz Centre for Environmental Research - UFZ, Permoserstrasse 15, 04318 Leipzig (Germany); Krueger, F. [ELANA Boden Wasser Monitoring, Dorfstrasse 55, 39615 Falkenberg (Germany); Lobe, I. [Department of River Ecology, Helmholtz Centre for Environmental Research - UFZ, Brueckstrasse 3a, 39114 Magdeburg (Germany); Rupp, H. [Department of Soil Physics, Helmholtz Centre for Environmental Research - UFZ, Dorfstrasse 55, 39615 Falkenberg (Germany); Tuempling, W. v. [Department of River Ecology, Helmholtz Centre for Environmental Research - UFZ, Brueckstrasse 3a, 39114 Magdeburg (Germany)

    2007-08-15

    Artificial-lawn mats were used as sediment traps in floodplains to measure sediment input and composition during flood events. To estimate the natural variability, 10 traps were installed during two flood waves at three different morphological units in a meander loop of the River Elbe. The geochemical composition of deposited and suspended matter was compared. The sediment input showed weak correlations with concentration and composition of river water. It also correlated poorly with flood duration and level as well as distance of trap position from the main river. This is due to the high variability of the inundation, different morphological conditions and the variability of sources. The composition of the deposits and the suspended matter in the river water was comparable. Hence, for the investigated river reach, the expected pollution of the floodplain sediments can be derived from the pollution of the suspended matter in the river during the flood wave. - The deposition of polluted sediments on floodplains is characterised by a high local variability.

  13. Spatial and temporal variability of sediment deposition on artificial-lawn traps in a floodplain of the River Elbe

    International Nuclear Information System (INIS)

    Baborowski, M.; Buettner, O.; Morgenstern, P.; Krueger, F.; Lobe, I.; Rupp, H.; Tuempling, W. v.

    2007-01-01

    Artificial-lawn mats were used as sediment traps in floodplains to measure sediment input and composition during flood events. To estimate the natural variability, 10 traps were installed during two flood waves at three different morphological units in a meander loop of the River Elbe. The geochemical composition of deposited and suspended matter was compared. The sediment input showed weak correlations with concentration and composition of river water. It also correlated poorly with flood duration and level as well as distance of trap position from the main river. This is due to the high variability of the inundation, different morphological conditions and the variability of sources. The composition of the deposits and the suspended matter in the river water was comparable. Hence, for the investigated river reach, the expected pollution of the floodplain sediments can be derived from the pollution of the suspended matter in the river during the flood wave. - The deposition of polluted sediments on floodplains is characterised by a high local variability

  14. Fabrication, Tuning, Treatment and Testing of Two 3.5 Cell Photo-Injektor Cavities for the ELBE Linac

    CERN Document Server

    Arnold, A; Teichert, J; Xiang, R; Eremeev, G V; Kneisel, P; Stirbet, M; Turlington, L

    2011-01-01

    As part of a CRADA (Cooperative Research and Development Agreement) between Helmholtz-Zentrum Dresden-Rossendorf (HZDR) and Thomas Jefferson Lab National Accelerator Facility (TJNAF) we have fabricated and tested two 1.3 GHz 3.5 cell photo-injector cavities from polycrystalline RRR niobium and large grain RRR niobium, respectively. The cavity with the better performance will replace the presently used injector cavity in the ELBE linac [1]. The cavities have been fabricated and pre-tuned at TJNAF, while the more sophisticated final field tuning; the adjustment of the external couplings and the field profile measurement of transverse electric modes for RF focusing [2] was done at HZDR. The following standard surface treatment and the vertical test were carried out at TJNAF’s production facilities. A major challenge turned out to be the rinsing of the cathode cell, which has small opening (Ø10 mm) to receive the cathode stalk. Another unexpected problem encountered after etching, since large visible defects a...

  15. Quasi 2D hydrodynamic modelling of the flooded hinterland due to dyke breaching on the Elbe River

    Directory of Open Access Journals (Sweden)

    S. Huang

    2007-01-01

    Full Text Available In flood modeling, many 1D and 2D combination and 2D models are used to simulate diversion of water from rivers through dyke breaches into the hinterland for extreme flood events. However, these models are too demanding in data requirements and computational resources which is an important consideration when uncertainty analysis using Monte Carlo techniques is used to complement the modeling exercise. The goal of this paper is to show the development of a quasi-2D modeling approach, which still calculates the dynamic wave in 1D but the discretisation of the computational units are in 2D, allowing a better spatial representation of the flow in the hinterland due to dyke breaching without a large additional expenditure on data pre-processing and computational time. A 2D representation of the flow and velocity fields is required to model sediment and micro-pollutant transport. The model DYNHYD (1D hydrodynamics from the WASP5 modeling package was used as a basis for the simulations. The model was extended to incorporate the quasi-2D approach and a Monte-Carlo Analysis was used to conduct a flood sensitivity analysis to determine the sensitivity of parameters and boundary conditions to the resulting water flow. An extreme flood event on the Elbe River, Germany, with a possible dyke breach area was used as a test case. The results show a good similarity with those obtained from another 1D/2D modeling study.

  16. Fabrication, Tuning, Treatment and Testing of Two 3.5 Cell Photo-Injector Cavities for the ELBE Linac

    International Nuclear Information System (INIS)

    Arnold, A.; Murcek, P.; Teichert, J.; Xiang, R.; Eremeev, G. V.; Kneisel, P.; Stirbet, M.; Turlington, L.

    2011-01-01

    As part of a CRADA (Cooperative Research and Development Agreement) between Helmholtz-Zentrum Dresden-Rossendorf (HZDR) and Thomas Jefferson Lab National Accelerator Facility (TJNAF) we have fabricated and tested two 1.3 GHz 3.5 cell photo-injector cavities from polycrystalline RRR niobium and large grain RRR niobium, respectively. The cavity with the better performance will replace the presently used injector cavity in the ELBE linac. The cavities have been fabricated and pre-tuned at TJNAF, while the more sophisticated final field tuning, the adjustment of the external couplings and the field profile measurement of transverse electric modes for RF focusing was done at HZDR. The following standard surface treatment and the vertical test was carried out at TJNAF's production facilities. A major challenge turned out to be the rinsing of the cathode cell, which has small opening (O-slash10mm) to receive the cathode stalk. Another unexpected problem encountered after etching, since large visible defects appeared in the least accessible cathode cell. This contribution reports about our experiences, initial results and the on-going diagnostic work to understand and fix the problems

  17. Wie man Elementarteilchen entdeckt vom Zyklotron zum LHC : ein Streifzug durch die Welt der Teilchenbeschleuniger

    CERN Document Server

    Freytag, Carl

    2016-01-01

    Dieses Buch erklärt die physikalischen Grundlagen und die Technologien der Elementarteilchenforschung und beschreibt allgemeinverständlich Teilchenbeschleuniger und -detektoren sowie ihr Zusammenspiel. An einigen Meilensteinen der Forschung – von der Erzeugung von Transuranen über die Entdeckung exotischer Mesonen bis zum Higgs-Boson – zeigen die Autoren den Weg von der Theorie über das Experiment zum Forschungsergebnis auf. Gravitonen, Higgs-Teilchen, Neutrinos und Quarks – das Interesse an den kleinsten uns bekannten Teilchen ist seit Jahrzehnten ungebrochen und rückt damit auch die Laboratorien in den Blick, die an die Grenzen der Physik vorstoßen: Neben dem größten Experimentierfeld, das wir haben – dem Universum selbst - sind es die gigantischen Maschinen der Elementarteilchenphysik in Großforschungseinrichtungen wie dem CERN und dem DESY. Mit ihnen versuchen Forscher weltweit unter Einsatz extrem hoher Energien Zustände zu simulieren, wie sie zum Beginn unseres Universums kurz nach d...

  18. Site profiles of low-volatile chlorinated hydrocarbons - cause-oriented monitoring in aquatic media. Vol.2. Low-volatile chlorinated hydrocarbons in surface water, sediments, suspended matter and fish of the Elbe river and its tributaries; Standortprofile schwerfluechtiger chlorierter Kohlenwasserstoffe (SCKW) - ursachenorientiertes Monitoring in aquatischen Medien. Bd. 2. SCKW in Oberflaechenwasser, Sediment, Schwebstoffen und Fischen aus der Elbe und Nebenfluessen

    Energy Technology Data Exchange (ETDEWEB)

    Heinisch, E.; Kettrup, A.; Gebefuegi, I.; Martens, D.; Bergheim, W.; Wenzel, S.

    2001-07-01

    Evaluating the primary data from ARGE ELBE, LAU Halle/Saale and the Environmental Specimen Banking (Umweltprobenbank) as well from publications from the Czech Republic (CHMU) the concentrations of the following low volatile chlorinated hydrocarbons were established for surface water, sediment, breams and eels from the rivers Elbe, Schwarze Elster, Mulde and Saale partly from 1989 till 1999: DDT and its metabolites DDE and DDD, partly as 2,4'- and 4,4' isomers; HCH ({alpha}-, {beta}-, {gamma}- and {delta} isomers); chlorinated benzenes with 1-6 Cl atoms and octachlorostyrene. The data evaluated were drawn up into tables - comprehensive in a separate supplement, in short versions within the text - and consolidated into graphs. Aim of the paper was a cause-oriented monitoring. The by far most important emission sources, found from the distance and time profiles as well as from special assessments of the substance patterns, were chemical plants. (orig.) [German] Durch Auswertung von Primaerdaten der ARGE ELBE, des LAU Halle/Saale und der Umweltprobenbank sowie von Publikationen aus Tschechien (CHMU) wurden fuer Oberflaechenwasser, Sediment, Brassen/Bleien und Aale aus der Elbe, Schwarzen Elster, Mulde und Saale fuer die Jahre von z.T. 1989 bis 1999 die Konzentrationen der folgenden schwerfluechtigen Kohlenwasserstoffe (SCKW) ermittelt: DDT und seine Metabolite DDE und DDD, z.T. als 2,4'- und 4,4'-Isomere; HCH ({alpha}-, {beta}-, {gamma}- und {delta}-Isomere); chlorierte Benzole mit 1-6 Cl-Atomen und Octachlorstyrol. Die ausgewerteten Daten wurden zu Tabellen - ausfuehrlich in einem gesonderten Tabellenanhang und verkuerzt im Textteil - zusammengestellt sowie zu Grafiken verdichtet. Ziel der Arbeit war ein ursachenorientiertes Monitoring. Als mit Abstand wesentlichste Emissionsquellen konnten anhand von Streckenprofilen und Zeitrastern sowie durch spezielle Auswertungen der Stoffmusterverteilungen Chemibetriebe ermittelt werden. (orig.)

  19. Flood loss reduction of private households due to building precautionary measures -- lessons learned from the Elbe flood in August 2002

    Directory of Open Access Journals (Sweden)

    H. Kreibich

    2005-01-01

    Full Text Available Building houses in inundation areas is always a risk, since absolute flood protection is impossible. Where settlements already exist, flood damage must be kept as small as possible. Suitable means are precautionary measures such as elevated building configuration or flood adapted use. However, data about the effects of such measures are rare, and consequently, the efficiency of different precautionary measures is unclear. To improve the knowledge about efficient precautionary measures, approximately 1200 private households, which were affected by the 2002 flood at the river Elbe and its tributaries, were interviewed about the flood damage of their buildings and contents as well as about their precautionary measures. The affected households had little flood experience, i.e. only 15% had experienced a flood before. 59% of the households stated that they did not know, that they live in a flood prone area. Thus, people were not well prepared, e.g. just 11% had used and furnished their house in a flood adapted way and only 6% had a flood adapted building structure. Building precautionary measures are mainly effective in areas with frequent small floods. But also during the extreme flood event in 2002 building measures reduced the flood loss. From the six different building precautionary measures under study, flood adapted use and adapted interior fitting were the most effective ones. They reduced the damage ratio for buildings by 46% and 53%, respectively. The damage ratio for contents was reduced by 48% due to flood adapted use and by 53% due to flood adapted interior fitting. The 2002 flood motivated a relatively large number of people to implement private precautionary measures, but still much more could be done. Hence, to further reduce flood losses, people's motivation to invest in precaution should be improved. More information campaigns and financial incentives should be issued to encourage precautionary measures.

  20. The influence of the Danube-Odra-Elbe water canal project on the geobiocoenoses of floodplain forests (Czech Republic

    Directory of Open Access Journals (Sweden)

    Ivo Machar

    2010-01-01

    Full Text Available This arcticle deals with influence of the proposed Danube-Odra-Elbe (DOL water canal on the floodplain forests in the Czech Republic. The project of the DOL water canal is evaluated with using GIS methods and reference assessment of environmental effects. Biogeographic differentiation of the landscape in a biogeocenological concept have been also utilized in this paper. The presented paper has shown the possibilities of use of the GIS analysis for the assessment of the assumed effect of the DOL project on the hydrological regime of floodplain forests. It has been proven that this method is much more efficient in objectivizing the presupposed influences of the DOL canal on the water regime of floodplain forests than the previous assessments. The method employed in this paper for the purposes of the preliminary percentage quantification of the extent of the hydrological in­fluen­ce on individual types of geobiocoenoses of floodplain forests is used generally for the purposes of the environmental assessment of effects on investment plans concerning the landscape (the so-called EIA. It is clear that the assessment of the influences of the DOL project on floodplain forest geobiocoenoses primarily concerns the response of vegetation to changes in the soil moisture regime, which can be compared to the amount of data material (for a summary see PRAX et al., 2008. Results indicate that the potential construction of the DOL canal would significantly, i.e. with an influence value exceeding 50 %, affect 634 km2 of the area of inundations in lowland floodplains in the Czech Republic. Results are discussed in the frame of knowledge about water regime of floodplain forests ecosystems.

  1. Equilibrium sampling of polychlorinated biphenyls in River Elbe sediments--Linking bioaccumulation in fish to sediment contamination.

    Science.gov (United States)

    Schäfer, Sabine; Antoni, Catherine; Möhlenkamp, Christel; Claus, Evelyn; Reifferscheid, Georg; Heininger, Peter; Mayer, Philipp

    2015-11-01

    Equilibrium sampling can be applied to measure freely dissolved concentrations (cfree) of hydrophobic organic chemicals (HOCs) that are considered effective concentrations for diffusive uptake and partitioning. It can also yield concentrations in lipids at thermodynamic equilibrium with the sediment (clip⇌sed) by multiplying concentrations in the equilibrium sampling polymer with lipid to polymer partition coefficients. We have applied silicone coated glass jars for equilibrium sampling of seven 'indicator' polychlorinated biphenyls (PCBs) in sediment samples from ten locations along the River Elbe to measure cfree of PCBs and their clip⇌sed. For three sites, we then related clip⇌sed to lipid-normalized PCB concentrations (cbio,lip) that were determined independently by the German Environmental Specimen Bank in common bream, a fish species living in close contact with the sediment: (1) In all cases, cbio,lip were below clip⇌sed, (2) there was proportionality between the two parameters with high R(2) values (0.92-1.00) and (3) the slopes of the linear regressions were very similar between the three stations (0.297; 0.327; 0.390). These results confirm the close link between PCB bioaccumulation and the thermodynamic potential of sediment-associated HOCs for partitioning into lipids. This novel approach gives clearer and more consistent results compared to conventional approaches that are based on total concentrations in sediment and biota-sediment accumulation factors. We propose to apply equilibrium sampling for determining bioavailability and bioaccumulation potential of HOCs, since this technique can provide a thermodynamic basis for the risk assessment and management of contaminated sediments. Copyright © 2015 The Authors. Published by Elsevier Ltd.. All rights reserved.

  2. Exploration of the enhanced geothermal system (EGS) potential of crystalline rocks for district heating (Elbe Zone, Saxony, Germany)

    Science.gov (United States)

    Förster, Andrea; Förster, Hans-Jürgen; Krentz, Ottomar

    2018-01-01

    This paper addresses aspects of a baseline geothermal exploration of the thermally quiescent Elbe Zone (hosting the cities of Meissen and Dresden) for a potential deployment of geothermal heat in municipal heating systems. Low-permeable to impermeable igneous and metamorphic rocks constitute the major rock types at depth, implying that an enhanced geothermal system needs to be developed by creating artificial flow paths for fluids to enhance the heat extraction from the subsurface. The study includes the development of geological models for two areas on the basis of which temperature models are generated at upper crustal scale. The models are parameterized with laboratory-measured rock thermal properties (thermal conductivity k, radiogenic heat production H). The uncertainties of modelled temperature caused by observed variations of k and H and inferred mantle heat flow are assessed. The study delineates highest temperatures within the intermediate (monzonite/syenite unit) and mafic rocks (diorite/monzodiorite unit) forming the deeper portions of the Meissen Massif and, specifically for the Dresden area, also within the low-metamorphic rocks (slates/phyllites/quartzites) of the Elbtalschiefergebirge. Boreholes 3-4 km deep need to be drilled to reach the envisioned economically favourable temperatures of 120 °C. The metamorphic and mafic rocks exhibit low concentrations of U and Th, thus being advantageous for a geothermal use. For the monzonite/syenite unit of high heat production ( 6 µW m-3) in the Meissen Massif, the mobilization of Th and U into the geothermal working fluid is assumed to be minor, although their various radioactive decay products will be omnipresent during geothermal use.

  3. Water pollution screening by large-volume injection of aqueous samples and application to GC/MS analysis of a river Elbe sample

    Energy Technology Data Exchange (ETDEWEB)

    Mueller, S.; Efer, J.; Engewald, W. [Leipzig Univ. (Germany). Inst. fuer Analytische Chemie

    1997-03-01

    The large-volume sampling of aqueous samples in a programmed temperature vaporizer (PTV) injector was used successfully for the target and non-target analysis of real samples. In this still rarely applied method, e.g., 1 mL of the water sample to be analyzed is slowly injected direct into the PTV. The vaporized water is eliminated through the split vent. The analytes are concentrated onto an adsorbent inside the insert and subsequently thermally desorbed. The capability of the method is demonstrated using a sample from the river Elbe. By means of coupling this method with a mass selective detector in SIM mode (target analysis) the method allows the determination of pollutants in the concentration range up to 0.01 {mu}g/L. Furthermore, PTV enrichment is an effective and time-saving method for non-target analysis in SCAN mode. In a sample from the river Elbe over 20 compounds were identified. (orig.) With 3 figs., 2 tabs.

  4. Zum Erleben von Thrills und anderen starken emotionalen Reaktionen beim Musikhören

    OpenAIRE

    Schönberger, Jörg

    2003-01-01

    Obwohl unbestritten ist, dass Musik in der Lage ist, starke emotionale Reaktionen auszulösen, hat sich die Musikpsychologie wenig mit den Emotionen beschäftigt, die Menschen beim Musikhören erleben. Zwei mögliche Zugänge zum Erfassen solch starker emotionaler Reaktionen sind die Ansätze von John A. Sloboda und Alf Gabrielsson. Sloboda nutzt für seinen Ansatz das Phänomen der "Thrills" — physiologische Begleiterscheinungen starker emotionaler Reaktionen wie z.B. Gänsehaut, Schauer, die ü...

  5. Genetic variation in brown trout Salmo trutta across the Danube, Rhine, and Elbe headwaters: a failure of the phylogeographic paradigm?

    Science.gov (United States)

    Lerceteau-Köhler, Estelle; Schliewen, Ulrich; Kopun, Theodora; Weiss, Steven

    2013-08-26

    Brown trout Salmo trutta have been described in terms of five major mtDNA lineages, four of which correspond to major ocean basins, and one, according to some authors, to a distinct taxon, marbled trout Salmo marmoratus. The Atlantic and Danubian lineages of brown trout meet in a poorly documented contact zone in Central Europe. The natural versus human mediated origin of the Atlantic lineage in the upper Danube is a question of both theoretical and practical importance with respect to conservation management. We provide a comprehensive population genetic analysis of brown trout in the region with the aim of evaluating the geographic distribution and genetic integrity of these two lineages in and around their contact zone. Genetic screening of 114 populations of brown trout across the Danube/Rhine/Elbe catchments revealed a counter-intuitive phylogeographic structure with near fixation of the Atlantic lineage in the sampled portions of the Bavarian Danube. Along the Austrian Danube, phylogeographic informative markers revealed increasing percentages of Danube-specific alleles with downstream distance. Pure Danube lineage populations were restricted to peri-alpine isolates within previously glaciated regions. Both empirical data and simulated hybrid comparisons support that trout in non-glaciated regions north and northeast of the Alps have an admixed origin largely based on natural colonization. In contrast, the presence of Atlantic basin alleles south and southeast of the Alps stems from hatchery introductions and subsequent introgression. Despite extensive stocking of the Atlantic lineage, little evidence of first generation stocked fish or F1 hybrids were found implying that admixture has been established over time. A purely phylogeographic paradigm fails to describe the distribution of genetic lineages of Salmo in Central Europe. The distribution pattern of the Atlantic and Danube lineages is extremely difficult to explain without invoking very strong

  6. Budke, Alexandra; Kanwischer, Detlef; Pott, Andreas (Hg.), Internetgeographien : Beobachtungen zum Verhältnis von Internet, Raum und Gesellschaft / [rezensiert von] Helmut Klüter

    OpenAIRE

    Klüter, Helmut

    2009-01-01

    Rezensiertes Werk: Internetgeographien : Beobachtungen zum Verhältnis von Internet, Raum und Gesellschaft / hrsg. von Alexandra Budke ... - Stuttgart : Steiner, 2004. - 192 S. : Ill., graph. Darst., Kt. - (Erdkundliches Wissen ; 136) ISBN 3-515-08506-8

  7. The development of radioactive contamination of the North Sea fish and in the lower course of the rivers Elbe and Weser

    International Nuclear Information System (INIS)

    Feldt, W.; Kanisch, G.

    1985-01-01

    The discharge of radioactive waste water from radwaste treatment plants in England and in France has led to an increase in contamination of North Sea fish. In 1982, following water measurements, fish were caught in many places in the North Sea. The comparison similar measurements carried out in 1965 proves that in 1982 the contamination of North Sea fish with Cs-137 had increased by a factor of about 3. Subsequent developments of contamination of several kind of fish until 1984 are shown and the radiation exposure of the population from eating shrimps, mussels and fish is estimated. The radionuclides Cs-137, Ru-106 and Co-60 can be used to show to what extent the lower course of the rivers Elbe and Weser are affected by North Sea contamination, in particular by discharges from La Hague. (orig./HP) [de

  8. A GIS TOOL TO EVALUATE THE SPATIAL EVOLUTION OF HYDRO-THERMIC FEATURES DURING GROWING SEASON OF VEGETABLE CROPS IN ELBE RIVER LOWLAND (POLABI

    Directory of Open Access Journals (Sweden)

    VERA POTOP

    2012-11-01

    Full Text Available A GIS tool to evaluate the spatial evolution of hydro-thermic features during growing season of vegetable crops in Elbe River lowland (Polabi. This article presents the results of the first study on combined mezoclimatological, microclimatological and topographical tools for evaluating precision farming in the growth of vegetable crops in the Elbe River lowland (Polabi region from the Czech Republic. We assess the variability of basically climatological characteristics in relation to topographic characteristics at the regional (Polabi and local (agricultural farm scales. At regional scale, interpolation approach is based on local linear regression and universal kriging interpolation. At local scale, two conventional interpolation methods, spline and local ordinary kriging with a Gaussian model variance across the fields, were applied. The local spline interpolators have been used in developing digital elevation models (DEMs and to determine the slope angle inclination of vegetable fields. The DEMs of the vegetable crops fields was developed at a 10 m x 10 m resolution based on elevation data collected in the field by a hand-held RTK- Global Positioning System receiver. This tool allowed the distinction of microclimatic conditions that produce altitude-slope-related patterns of the spatial-temporal distribution of the basic meteorological elements during growing season of vegetable crops. The effect of slope on diurnal extreme temperatures in the vegetable cropped field conditions was more pronounced than that of elevation. Accordingly to developed maps, the warmest and longest duration of sunshine, and the least precipitation totals during growing season occurred in the middle part of Polabi.

  9. From traditional locomotive engineers to automated train control; Vom triebfahrzeugfuehrergefuehrten Zug zum Fahrautomaten

    Energy Technology Data Exchange (ETDEWEB)

    Hohnecker, E. [Karlsruhe Univ. (T.H.) (Germany). Inst. fuer Strassenbau und Eisenbahnwesen

    2000-07-01

    Profitability and capacity in public guided transport must be increased. One option is automatic, driverless train control. There are many questions surrounding the legal, technical and operational aspects of automated control which need to be answered. These intrinsic aspects of the system will be presented and discussed. The various options leading to automatic train control as well as the necessary technical measures will also be presented. (orig.) [German] Die Wirtschaftlichkeit und die Leistungsfaehigkeit im oeffentlichen spurgefuehrten Verkehr muessen erhoeht werden. Als Loesung bietet sich zukuenftig auch der automatische und fahrerlose Betrieb an. Das Fahren ohne Triebfahrzeugfuehrer wirft jedoch eine Vielzahl von Fragestellungen auf, die sowohl in juristischer, technischer und betrieblicher Hinsicht beantwortet werden muessen. Diese systemimmanenten Aspekte werden dargestellt und diskutiert. Anschliessend werden die Moeglichkeiten auf dem Weg zum Fahrautomaten aufgezeigt und die technischen Massnahmen zur Umsetzung des automatischen Fahrens erlaeutert. (orig.)

  10. Contributions to the workshop `Residual ponds from open pit brown coal mining`; Beitraege zum Workshop ``Braunkohlebergbaurestseen``

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-12-31

    The contributions to the workshop ``Investigations on flooding in residual ponds from open-pit mining`` deal, inter alia, with the hydrochemical development of flushing waters, the stability of the water quality of residual lakes, especially under the impact of land contamination, the influence of brine receipts by flushed residual lakes, and with the microbiological ecology of residual lakes from mining. Furthermore, geophysical studies for demonstrating paths of flow and for calculating the depth and volume of residual lakes from open-pit mining are discussed. (MSK) [Deutsch] Die Beitraege zu dem Workshop `Untersuchungen zu Flutungen in Tagebaurestseen` befassen sich unter anderem mit der hydrochemischen Entwicklung von Flutungsgewaessern, mit der Qualitaetsstabilitaet von Restseewaessern - insbesonders bei Einwirkung von Altlasten - und mit den Einfluessen von Solezufluessen bei Restseeflutung sowie mit Untersuchungen zur mikrobiologischen Oekologie in Bergbaurestseen. Desweiteren werden geophysikalische Untersuchungen zum Nachweis von Fliesswegen und die Tiefen- und Volumenberechnung eines Tagebaurestlochsees erlaeutert. (MSK)

  11. Contributions to the workshop `Residual ponds from open pit brown coal mining`; Beitraege zum Workshop ``Braunkohlebergbaurestseen``

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-12-31

    The contributions to the workshop ``Investigations on flooding in residual ponds from open-pit mining`` deal, inter alia, with the hydrochemical development of flushing waters, the stability of the water quality of residual lakes, especially under the impact of land contamination, the influence of brine receipts by flushed residual lakes, and with the microbiological ecology of residual lakes from mining. Furthermore, geophysical studies for demonstrating paths of flow and for calculating the depth and volume of residual lakes from open-pit mining are discussed. (MSK) [Deutsch] Die Beitraege zu dem Workshop `Untersuchungen zu Flutungen in Tagebaurestseen` befassen sich unter anderem mit der hydrochemischen Entwicklung von Flutungsgewaessern, mit der Qualitaetsstabilitaet von Restseewaessern - insbesonders bei Einwirkung von Altlasten - und mit den Einfluessen von Solezufluessen bei Restseeflutung sowie mit Untersuchungen zur mikrobiologischen Oekologie in Bergbaurestseen. Desweiteren werden geophysikalische Untersuchungen zum Nachweis von Fliesswegen und die Tiefen- und Volumenberechnung eines Tagebaurestlochsees erlaeutert. (MSK)

  12. Schule forscht Ansätze und Methoden zum forschenden Lernen

    CERN Document Server

    2009-01-01

    Kinderunis, Science Center, Experimentierlabore – der Markt der außerschulischen Wissenschaftsvermittlung für Kinder und Jugendliche boomt. Doch in den Schulen findet forschendes Lernen noch wenig Beachtung. Dabei fördert die Methode wichtige Fähigkeiten der Schüler und bietet Chancen für eine zukunftsweisende Schulentwicklung. Die Jugendlichen erarbeiten in Forschungsprojekten eigenständig wissenschaftliche Fragestellungen, suchen Lösungswege, dokumentieren und präsentieren ihre Erkenntisse: Sie trainieren so wissenschaftliches Arbeiten, Eigenverantwortlichkeit, Teamfähigkeit und Zeitmanagement. Lehrer werden zu Lernbegleitern, Schulen öffnen sich für Kooperationen und entwickeln Alternativen zum 45-minütigen Unterrichtstakt. Die Fachbeiträge von Andreas Müller, Ilka Parchmann, Gerhard Roth u. a. untermauern die Praxisberichte aus lern- und entwicklungspsychologischer Sicht. Die Autoren sind sich einig: Wer bereits in der Schule forscht, ist in Studium und Beruf einen großen Schritt voraus....

  13. Procedure guideline for radioiodine test. Version; Verfahrensanweisung zum Radioiodtest. Version 2

    Energy Technology Data Exchange (ETDEWEB)

    Dietlein, M.; Dressler, J.; Leisner, B.; Reiners, C.; Schicha, H. [Deutsche Gesellschaft fuer Nuklearmedizin (DGN) (Germany); Eschner, W.; Lassmann, M. [Deutsche Gesellschaft fuer Nuklearmedizin (DGN) (Germany); Deutsche Gesellschaft fuer Medizinische Physik (DGMP) (Germany)

    2003-06-01

    The version 2 of the procedure guideline for radioiodine test is an update of the guideline published in 1999. The following statements were added or modified: The procedure guideline discusses the pros and cons of a single measurement or of repeated measurements of the iodine-131 uptake and their optimal timing. Different formulas are described when one, two or three values of the radioiodine kinetic are available. The probe with a sodium iodide crystal, alternative or additionally the gamma-camera using the ROI-technique are instrumentations for the measurement of iodine-131 uptake. A possible source of error is an inappropriate measurement (sonography) of the target volume. The patients' preparation includes the withdrawal of antithyroid drugs 2-3 days before radioiodine administration. The patient has to avoid iodine-containing medication and the possibility of additives of iodide in vitamin- or electrolyte-supplementation has to be considered. (orig.) [German] Mit der Version 2 der Verfahrensanweisung zum Radioiodtest wird die in 1999 publizierte Verfahrensanweisung aktualisiert. Ergaenzungen und Modifikationen betreffen die notwendige Anzahl und die Zeitintervalle der Iod-131-Uptake-Messungen. Diskutiert werden die Argumente fuer die ein- oder mehrmalige Uptake-Messung. Berechnungsformeln fuer ein, zwei und drei Messpunkte werden angegeben. Als Messgeraete koennen die Uptake-Messsonde, alternativ oder zusaetzlich die Gammakamera mit ROI-Technik zum Einsatz kommen. Fehler bei der Volumetrie (Sonographie) des Zielvolumens gehen unmittelbar in die Berechnung der Therapieaktivitaet ein. Zur Vorbereitung der Patienten wird ein Absetzen der thyreostatischen Medikation 2 bis 3 Tage vor dem Radioiodtest empfohlen. Moeglich Iod(id) zusaetze in Multivitamin- und Spurenelementkombinationen sollten bedacht werden. (orig.)

  14. Literature study: State of knowledge on pollutant decomposition and transport in natural soils; Literaturstudie zum Thema: Darstellung und Bewertung des Wissensstandes zum Schadstoffabbau und -transport in natuerlichen Boeden

    Energy Technology Data Exchange (ETDEWEB)

    Koch, R. (ed.); Hahn, M.; Koennemann, T.; Mangold, S.; Ouerfelli, I.; Preuss, V.; Schoepke, R.; Sonntag, B.

    2000-07-01

    The use of natural soils for low-cost removal of precipitated water and slightly polluted waste water has become an issue in legal procedures concerning water management. Although groundwater protection is given high priority, authorities do not have sufficient data on long-term effects and decomposition effects during passage to the soil. The Hydrology Department of Brandenburgische Technische Universitaet Cottbus, on behalf of the Thuringian Environmental Authority, investigated the state of the art of discharge of precipitated water into natural soils. The investigation is the first in a series of which the following effects are expected: Faster results by preliminary assessment of the applicability of the technique envisaged, use of this low-cost technology for waste water treatment in consideration of surface water protection. [German] Die Nutzung natuerlicher Boeden zur kostenguenstigen Beseitigung von Niederschlagswasser aber auch von schwachbelastetem Abwasser ist eine Variante der Abwasserbeseitigung, die zunehmend Antragsgegenstand in wasserrechtlichen Verfahren ist. Der Schutz des Grundwassers ist dabei in besonderem Masse zu beachten. Die Einschaetzung der Eignung dieser Variante ist Behoerden aufgrund unzureichender Aussagen zum Langzeitverhalten und zu Abbaueffekten waehrend der Bodenpassage derzeit nicht moeglich. Durch die THUeRINGER LANDESANSTALT FUeR UMWELT erhielt der Lehrstuhl Wassertechnik der Brandenburgischen Technischen Universitaet Cottbus den Auftrag, im Rahmen einer Literaturstudie, den gegenwaertigen Stand der schadlosen Versickerung von Niederschlagswasser in natuerlichen Boeden aufzuzeigen. Die Literaturrecherche bildet den ersten Schritt einer Untersuchungsreihe, von der folgende Wirkungen erwartet werden: Verfahrensbeschleunigung durch Bewertbarkeit der Eignung der Behandlungsvariante, Nutzung dieser kostenguenstigen Umwelttechnologie zur Behandlung von Abwasser unter Beachtung des Gewaesserschutzes. (orig.)

  15. [Roman Czaja. Die Anfänge preussischer Hansestädte im Lichte der historischen und archäologischen quellen : Danzig/Gdańsk, Elbing/Elbląg, Thorn/Toruń] / Dennis Hormuth

    Index Scriptorium Estoniae

    Hormuth, Dennis

    2013-01-01

    Arvustus : Roman Czaja. Die Anfänge preussischer Hansestädte im Lichte der historischen und archäologischen quellen : Danzig/Gdańsk, Elbing/Elbląg, Thorn/Toruń. In: Stadtgründung und Stadterweiterung. Beiträge von Archäologie und Stadtgeschichtsforschung. (=Beiträge zur Geschichte der Städte Mitteleuropas XXII). LInz, 2011. S. 59-74

  16. Die Darstellung Rudolf Virchows in der Vossischen Zeitung im Zeitraum vom 1. Januar 1844 bis zum 31. Dezember 1865

    OpenAIRE

    Feddersen, Lars Harald

    2010-01-01

    DIE DARSTELLUNG RUDOLF VIRCHOWS IN DER VOSSISCHEN ZEITUNG IM ZEITRAUM VOM 1. JANUAR 1844 BIS ZUM 31. DEZEMBER 1865 Rudolf Virchow erforschte u.a. als Pathologe, Hygieniker, Anthropologe, Ethnologe und Prähistoriker bedeutende Grundlagen der modernen Wissenschaft. Diese vielschichtigen Tätigkeitsbereiche zeichnen ihn als einen der bedeutendsten Wissenschaftler v.a. der Medizingeschichte aus. Als Politiker engagierte sich Virchow in erster Linie im sozial- und gesellschaftspolitischen Bereich. ...

  17. Compilation, evaluation and assessment of the existing data on the pollution load affecting the water quality of the central stretch of the river Elbe on the basis of uniform common criteria (preliminary study). Vol. 1

    International Nuclear Information System (INIS)

    Guhr, H.; Buettner, O.; Dreyer, U.; Krebs, D.; Spott, D.; Suhr, U.; Weber, E.

    1993-01-01

    The data (concentrations, pollution loads) measured for the 566 km flowing stretch of the river Elbe on the territory of the former GDR were compiled and evaluated according to primary statistical aspects. The longitudinal section was prepared for major variables with regard to the flow for Q50% and Q5%. The distribution of concentration in various measuring points was shown by means of box plots. Interdependencies between concentration and flow as well as water temperature were investigated and used for assessing diffuse matter input. In addition to determining the saprobic index, the biological control of water pollution comprised the assessment of the macrozoobenthos in the area of sewage discharge, chlorophyll measurements, and inventory of the fish population, analysis of pollutant accumulation in fish and in zoobenthos as well as virus detection. The water quality of the river Elbe was evaluated in compliance with the binding E.C. guidelines and national regulations/recommendations revealing an extreme pollution level which impairs or excludes various utilizations of the Elbe water. (orig.) [de

  18. Success in the protection of the ozone layer is at risk. An interview concerning the German view on CFC- and H-CFC-phaseout all over the world; Bisherige Erfolge zum Schutz der Ozonschicht sind gefaehrdet. Ein Fachgespraech ueber die deutsche Meinung zum FCKW- und H-FCKW-Phaseout ueberall in der Welt

    Energy Technology Data Exchange (ETDEWEB)

    Kraus, H.W.; Weissenborn, P.

    1995-11-01

    This article repeats an interview with the commissioner of international measures for the protection of the ozone layer of the Federal Ministry of the Environment which took place in the run-up to the 7th conference of the signatory states of the Montreal Protocol. (BWI) [Deutsch] Der vorliegende Beitrag gibt ein Interview wieder, das mit dem Beauftragten fuer internationale Massnahmen zum Schutz der Ozonschicht beim Bundesumweltministerium im Vorfeld der 7. Konferenz der Vertragsstaaten zum Montrealer Protokoll gefuehrt wurde. (BWI)

  19. Von der Pionierarbeit zum Nachschlagewerk From Pioneering Work to Reference Work

    Directory of Open Access Journals (Sweden)

    Sylvia Mieszkowski

    2006-11-01

    Full Text Available 1995 erschien der von Hadumod Bußmann und Renate Hof herausgegebene Sammelband Genus. Zur Geschlechterdifferenz in den Kulturwissenschaften. Zum 10jährigen Jubiläum haben sich die beiden Herausgeberinnen noch einmal mit dem Kröner Verlag zusammengetan, haben teils dieselben, teils neue Autorinnen um sich geschart und Genus einen neuen Auftritt verschafft. Der aktuelle Untertitel benennt die Erweiterung, die statt einer bloßen Aktualisierung des ersten Bandes vorgenommen wurde: Geschlechterforschung/Gender Studies in den Kultur- und Sozialwissenschaften. Ein Handbuch.The collected volume Genus. On Gender Difference in Cultural Studies (Genus. Zur Geschlechterdifferenz in den Kulturwissenschaften, edited by Hadumod Bußmann and Renate Hof, was published in 1995. In honor of ten years of publication both editors came together with the publishing house Kröner Verlag once again, bringing with them some of the same as well as some new authors, in order to provide Genus a renewed appearance on the academic stage. Instead of merely revising the original volume, the editors planned its expansion. The subtitle points to the result: Gender Studies in Culture and Social Studies. A Handbook (Geschlechterforschung/Gender Studies in den Kultur- und Sozialwissenschaften. Ein Handbuch.

  20. Ein statistisches Modell zum Einfluß der thermischen Bewegung auf NMR-Festkörperspektren

    Science.gov (United States)

    Ploss, W.; Freude, D.; Pfeifer, H.; Schmiedel, H.

    Es wird ein statistisches Modell zum Einfluß der thermischen Bewegung auf die NMR-Linienform vorgestellt, das die Verschmälerung von Festkörper-Spektren bei wachsender Temperatur beschreibt. Das Modell geht von der Annahme aus, daß nach einer Ortsveränderung eines Kerns infolge thermischer Bewegung jede beliebige Kernresonanzfrequenz mit der durch das Festkörperspektrum vorgegebenen Wahrscheinlichkeit angenommen werden kann. Am Beispiel der Festkörper-Gaußlinie wird der Unterschied zu dem bekannten Modell von ANDERSON und WEISS verdeutlicht.Translated AbstractA Statistical Model for the Influence of Thermal Motion on N. M. R. Spectra in SolidsA theory is proposed which allows to describe the narrowing of n. m. r.-line width in the presence of thermal motions of the spins. The model is based on the assumption, that the local resonance frequency of a given spin immediately after the jump is distributed according to the n. m. r.-line shape of the rigid lattice. The difference to the well-known ANDERSON-WEISS-model of spectral narrowing is demonstrated for a gaussian line shape.

  1. Akupunktur bei Sterilität und zum Schwangerschaftserhalt: Eine Übersicht mit Forschungsidee

    Directory of Open Access Journals (Sweden)

    Ots T

    2011-01-01

    Full Text Available Die Unterstützung der weiblichen Fertilität und der Schwangerschaft mittels Akupunktur hat während der vergangenen Dekade viele Anhänger gefunden. Dieser Artikel gibt eine Übersicht über die hierzu veröffentlichten wichtigsten Studien. Die Wirkung der Akupunktur wird als effektiv und effizient beschrieben. In einem zweiten Ansatz stellt der Autor eine vereinfachte Form der Akupunktur auf dem Boden der Segment-Anatomie vor. Dieser kuti-viszeralen, segmentalen Reizung der gynäkologischen Organe könnte innerhalb der gynäkologischen Praxis große Bedeutung zukommen, da sie leicht erlernbar (innerhalb eines Tages und einfach durchführbar ist. Die Zielvorstellung ist ein integratives Vorgehen in der Hand der Gynäkologen. Vorbereitend hierzu ist eine multizentrische randomisierte kontrollierte Studie notwendig, die diese beiden Ansätze innerhalb der Akupunktur als Komplement zum gynäkologischen Prozedere der IVF untersucht.

  2. PAH analysis in Leipzig allotment soils; Untersuchungen zum Gefaehrdungspotential polycyclischer aromatischer Kohlenwasserstoffe (PAK) in Leipziger Kleingartenboeden

    Energy Technology Data Exchange (ETDEWEB)

    Bittrich, R.; Butze, B.; Mueller, S.; Prawalsky, R.; Stoye, H. [Umwelt-Consult e.V., Leipzig (Germany)

    2000-09-01

    Soils in 29 allotments were analyzed systematically with a view to the following aspects: Concentration ratios of the 16 components analyzed. Occurrence and classification of so-called PAH patterns. Interdependences between PAH patterns and soil features. PAH concentrations and soil-immanent buffer characteristics (humus concentration, pH, clay concentration, sesquioxide concentrations, exchange capacity). [German] Die vorliegende Arbeit konzentriert sich auf die Untersuchung der PAK-Belastung kleingaertnerisch genutzter Boeden. Die hier vorgestellten Ergebnisse resultieren aus Probjekten von Umwelt-Consult e.V. aus den Jahren 1995 bis 1997 im Auftrag der Stadt Leipzig und dem unter fachlicher Begleitung des Referates Geochemie der Abt. Boden/Geochemie vom LfUG gefoerderten Forschungsvorhaben 'Untersuchungen zum Gefaehrdungspotential polycyclischer aromatischer Kohlenwasserstoffe (PAK) in Boeden der Stadt Leipzig'. Hierbei wurden systematisch Boeden in 29 Kleingartenanlagen untersucht. Folgende Fragestellungen sollten beantwortet werden: Stehen die PAK-Konzentrationen der 16 analysierten Einzelkomponenten in bestimmten Groessenverhaeltnissen zueinander? Sind sogenannte PAK-Muster zu erkennen und lassen sich diese klassifizieren? Welche Beziehungen gibt es zwischen PAK-Mustern und Bodenmerkmalen? Korrespondieren die PAK-Konzentrationen (Gesamt-PAK, Einzelkomponenten) im Boden und deren bodenhorizont-bezogene Abfolge mit der Auspraegung bodenimmanenter Puffermerkmale (Humusgehalt, pH-Wert, Tongehalt, Gehalt an Sesquioxiden, Austauschkapazitaet)? (orig.)

  3. HABITAT USE OF AGE - 0 TWAITE SHAD (ALOSA FALLAX LACÉPÈDE, 1803 IN THE TIDAL FRESHWATER REGION OF THE ELBE RIVER, GERMANY.

    Directory of Open Access Journals (Sweden)

    GERKENS M.

    2001-07-01

    Full Text Available Between April and August 1997 the distribution of twaite shad larvae in the lower Elbe River downstream the city of Hamburg was examined by ring net, lift net and pop net sampling. During each haul six environmental parameters - water depth, water temperature, conductivity, oxygen concentration, distance from shore line and distance from river channel - were estimated. Twaite shad larvae were found from 26 May to 10 July. Yolk sac larvae were present from 26 May to 25 June. High abundances of twaite shad larvae were found in the side channels and main channels. A canonical correspondence analysis was calculated to evaluate the importance of measured environmental parameters for the distribution of age - 0 fishes. Water depth, distance from shore line and distance from river channel were identified as main parameters for the distribution of species. Twaite shad larvae preferred maximum water depth and distance from shore line and short distances to the river channel. An upstream displacement of the spawning grounds of twaite shad was observed, following a trend first noticed in the early 90th. Nowadays, the location of spawning grounds corresponds to the situation at the beginning of the 19th century. Reduced water pollution is believed to be the main reason for this phenomenon.

  4. Concentration and distribution patterns of naturally occurring radionuclides in sediments and flood plain soils of the catchment area of the river Elbe

    International Nuclear Information System (INIS)

    Barth, A.; Jurk, M.; Weiß, D.

    1998-01-01

    The impact of uranium mining and milling as well as that of traditional mining activities on river sediments and flood plain soils in the catchment area of the river Elbe was investigated over the years 1994 to 1995. Contamination resulting from mining activities has been identified by comparing the median values for the measured radionuclides, and by establishing the ratio between Ra-226 and Ra-228. The transport and deposition of contaminated materials as a result of high water events, and river discharge of waste water from mining and milling facilities, can be considered to be the main paths of sediment and soil contamination. Sediments and flood plain soils located in the vicinity of former uranium mining and milling sites are primarily influenced by discharges of waste water. Long distance transport and deposition at dams, barrages and on flood plains has mainly been caused by high water events. In many cases the radionuclide concentrations were higher in the subsurface layer than in the top layer of flood plain soil. Due to termination of uranium mining and milling activities, no significant contamination of newer or fresh sediments was found. Radiation exposure arising in relation to angling or walking on flood plains is low

  5. Practical experience with biodegradable biomass waste bags in several different German composting plants; Praxiserfahrungen zum Abbau kompostierbarer Bioabfallsaecke auf verschiedenen Kompostierungsanlagen in Deutschland

    Energy Technology Data Exchange (ETDEWEB)

    Ziermann, Andreas; Schmidt, Bettina [C.A.R.M.E.N. e.V., Straubing (Germany)

    2012-11-01

    The study intended to find out how fast biodegradable biomass waste bags are degraded in practical conditions in composting and fermentation plants. The plants differ with regard to the processes employed; further, rotting times may be much shorter in practice than the twelve weeks requested by DIN EN 13432 and DIN EN 14995. For the study, plant types were selected that are practically relevant for biomass waste utilisation in Germany. (orig.) [German] Ziel der vorliegenden Studie war es, herauszufinden, wie schnell kompostierbare Bioabfallsaecke unter Praxisbedingungen in verschiedenen Kompost- und Vergaerungsanlagentypen abgebaut werden. Zum einen bestehen teilweise grosse verfahrenstechnische Unterschiede zwischen den Anlagentypen, zum anderen sind die Rottezeiten in der Praxis zum Teil wesentlich kuerzer, als die in der DIN EN 13432 und DIN EN 14995 geforderten zwoelf Wochen. Fuer die Studie wurden Anlagentypen ausgewaehlt, die fuer die Verwertung von Bioabfaellen in Deutschland praxisrelevant sind. (orig.)

  6. Genetische Veränderungen an primären Prostatakarzinom-Biopsien in Korrelation zum klinischen Verlauf

    Directory of Open Access Journals (Sweden)

    Steiner T

    2002-01-01

    Full Text Available Die der Entstehung des Prostatakarzinoms zugrundeliegenden bzw. mit einem Progreß vergesellschafteten genetischen Veränderungen sind noch weitgehend unbekannt. Ziel der vorliegenden retrospektiven Untersuchung war die Erfassung genetischer Aberrationen an paraffineigebettetem Material primärer Prostatakarzinom-Biopsien und die Korrelation der Daten zum klinischen Verlauf. In 28 karzinomtragenden primären Prostatabiopsien wurden die Tumorareale gekennzeichnet. Nach Dissektion der Tumorzellen wurden die Proben mittels "comparative genomic hybridization" (CGH analysiert. Daten zum klinischen Verlauf der Patienten wurden erfaßt. Die mittlere Nachbeobachtungszeit betrug 36 Monate, alle Patienten wurden hormonablativ behandelt. 11 Patienten (39 % wiesen unter laufender Therapie einen Tumorprogreß auf. In 25 (88 % der 28 untersuchten Tumorareale konnten genetische Aberrationen detektiert werden, im Mittel fanden wir 4,8 Aberrationen je Tumor. Das Verhältnis Verlust / Zugewinn betrug 1,3 / 1. Folgende chromosomale Veränderungen wurden häufig festgestellt: Verluste von 6q in 40 %; von 8p in 32 %; von 16q in 21 %; von 18q in 21 %; Zugewinne von 8q in 32 %; von 17 in 43 %. In Korrelation zum klinischen Verlauf fand sich ein Zugewinn von 8q signifikant häufiger bei Patienten, welche im Beobachtungszeitraum einen Tumorprogreß entwickelten (64 % vs. 12 %; p = 0,0001. In der primären Tumorbiopsie waren bei progredienten Patienten im Mittel 5,3, bei Patienten ohne Tumorprogreß 3,8 Aberrationen je Tumor nachzuweisen. Unsere Ergebnisse zeigen, daß Veränderungen der Chromosomen 6q, 8, 16q, 17 und 18q regelmäßig beim Prostatakarzinom auftreten. Karzinome mit klinisch ungünstigem Verlauf weisen bereits in der primären Biopsie eine hohe genetische Instabilität auf.

  7. Firewall systems for protection of data communication in power stations; Firewall-Systeme zum Schutz der Datenkommunikation in Kraftwerken

    Energy Technology Data Exchange (ETDEWEB)

    Schoenfeld, P. [Siemens AG KWU (Germany)

    1998-12-31

    Networking of power plant computer systems is becoming increasingly common. Furthermore, instrumentation and control systems are being connected with general power plant networks to make process information available to administrative personnel. This increases the risk of accidental or intentional access from outside the system (e.g. by hackers). Firewall systems are used to prevent such outside access. A firewall is the sole gateway between two networks which are to be kept separate, and is used to filter and control access to the protected network. Cryptography and personal chip cards are also used to provide additional protection. (orig.) [Deutsch] Rechnersysteme im Kraftwerk werden heute mehr und mehr vernetzt. Auch werden Rechnersysteme zum Messen, Steuern und Regeln (sogenannte Instrumentation and Control Systems) mit allgemeinen Kraftwerksnetzen verbunden, um Prozessinformationen auch in der Verwaltung zugaenglich zu machen. Damit waechst die Gefahr von zufaelligen oder beabsichtigten Eingriffen von aussen (z.B. Hacker). Zum Schutz vor solchen Eingriffen von aussen werden sogenannte Firewall-Systeme eingesetzt. Ein Firewall ist der alleinige Uebergang zwischen zwei zu trennenden Netzen und dient zur Filterung und Kontrolle der Zugriffe auf ein zu schuetzendes Netz. Ergaenzende Schutzmassnahmen sind der Einsatz kryptographischer Verfahren, sowie persoenlicher Chipkarten. (orig.)

  8. Firewall systems for protection of data communication in power stations; Firewall-Systeme zum Schutz der Datenkommunikation in Kraftwerken

    Energy Technology Data Exchange (ETDEWEB)

    Schoenfeld, P [Siemens AG KWU (Germany)

    1999-12-31

    Networking of power plant computer systems is becoming increasingly common. Furthermore, instrumentation and control systems are being connected with general power plant networks to make process information available to administrative personnel. This increases the risk of accidental or intentional access from outside the system (e.g. by hackers). Firewall systems are used to prevent such outside access. A firewall is the sole gateway between two networks which are to be kept separate, and is used to filter and control access to the protected network. Cryptography and personal chip cards are also used to provide additional protection. (orig.) [Deutsch] Rechnersysteme im Kraftwerk werden heute mehr und mehr vernetzt. Auch werden Rechnersysteme zum Messen, Steuern und Regeln (sogenannte Instrumentation and Control Systems) mit allgemeinen Kraftwerksnetzen verbunden, um Prozessinformationen auch in der Verwaltung zugaenglich zu machen. Damit waechst die Gefahr von zufaelligen oder beabsichtigten Eingriffen von aussen (z.B. Hacker). Zum Schutz vor solchen Eingriffen von aussen werden sogenannte Firewall-Systeme eingesetzt. Ein Firewall ist der alleinige Uebergang zwischen zwei zu trennenden Netzen und dient zur Filterung und Kontrolle der Zugriffe auf ein zu schuetzendes Netz. Ergaenzende Schutzmassnahmen sind der Einsatz kryptographischer Verfahren, sowie persoenlicher Chipkarten. (orig.)

  9. Kino filmų titrai kaip kalbų mokymosi priemonė. Untertitel als Mittel zum Fremdsprachenerwerb

    Directory of Open Access Journals (Sweden)

    Alina Baravykaitė

    2007-01-01

    Full Text Available Das in den letzten Jahren spürbare Bestreben der litauischen Gesetzgeber, Untertitelung von Fernsehfilmen zwecks Fremdsprachenerwerb gesetzlich anzuordnen, löste eine Auseinandersetzung in der Öffentlichkeit aus, die sich in der Presse sowie im Internet widerspiegelt und als Anstoß zum vorliegenden Beitrag dient. Diese Arbeit stellt den Versuch dar, die Möglichkeiten und Grenzen der Untertitelung als eines Mittels zum Fremdsprachenerwerb zu untersuchen. Auf Grund der fehlenden wissenschaftlichen Forschungen in diesem Bereich sollen dabei empirische Betrachtungen und die vergleichende Textanalyse von Original und Übersetzung als Hilfe dienen. Auch wenn die Relevanz der Untertitelung für den Fremdsprachenerwerb nicht bestreitbar ist, ist sie aber zugleich nicht zu überschätzen: Durch die lediglich für diese Form der audiovisuellen Übersetzung charakteristischen Merkmale (kurze Einblendezeit, kondensierte Sprache und begrenzte Übertragungsmöglichkeiten von Realia-Begriffen, Phraseologismen, Intertextualismen, dem Wortspiel etc. bleiben dem Zuschauer oft sprachliche Stilmittel vorenthalten und der in allen Übersetzungsbereichen vorkommende unausweichliche Sinn- und Wirkungsverlust des Originals wird erheblich verstärkt. Anbetracht der erwähnten Aspekte und der häufigen fehlerhaften Übersetzungen sollen Untertitel nur als Hilfsmittel beim Fremdsprachenerwerb angewendet werden, wobei herkömmliche Lehr- und Lernstrategien von Fremdsprachen in den Vordergrund treten müssen.

  10. Evaluation von E-Learning: Checklisten, Kriterienkataloge oder Evaluationskonzepte? Zum Stand der Bewertungsverfahren für E-Learning-Arrangements

    Directory of Open Access Journals (Sweden)

    Ulf-Daniel Ehlers

    2017-09-01

    Full Text Available Qualität in Bildungsmaßnahmen - als Legitimation oder aus wissenschaftlichem Interesse - ist ein Thema von hoher Bedeutung, auch - und gerade - im E-Learning. E-Learning, als eine noch relativ junge, nicht völlig etablierte, aber - so stellt sich immer häufiger heraus – kostenintensive Bildungsform, muss sich immer wieder der kritischen Frage nach der Qualität stellen, zumeist assoziiert mit Lernerfolg. Vielfältige Instrumente, um die Qualität zu überprüfen oder zu entwickeln, begleitend oder im Nachhinein, sind bislang konzipiert worden (vgl. Ehlers/Pawlowski/Goertz 2003. Der Artikel gibt einen Überblick zum derzeitigen Stand der Dinge in Bezug auf zwei dieser Verfahrensweisen: zum einen geht es dabei um die Beurteilungen anhand von Kriterienkatalogen bzw. Checklisten und zum anderen um Evaluationsverfahren. Obwohl vielfach bereits umfassendere Managementsysteme zum Einsatz kommen, die die Qualität bei Anbietern kontinuierlich verbessern sollen, haben beide Verfahren eine steigende Bedeutung - da auch Managementverfahren immer wieder auf Kriterien oder Evaluationsverfahren zurückgreifen.

  11. Keim, Karl-Dieter, Das Fenster zum Raum : Traktat über die Erforschung sozialräumlicher Transformation / [rezensiert von] Helmut Klüter

    OpenAIRE

    Klüter, Helmut

    2009-01-01

    Rezensiertes Werk: Keim, Karl-Dieter: Das Fenster zum Raum : Traktat über die Erforschung sozialräumlicher Transformation / Karl-Dieter Keim. - Opladen : Leske + Budrich, 2003. - 171 S. : graph. Darst. - (Lehrtexte : Sozialwissenschaften) ISBN 3-8100-4050-9

  12. S2k-Leitlinie zum Gebrauch von Präparationen zur lokalen Anwendung auf der Haut (Topika).

    Science.gov (United States)

    Wohlrab, Johannes; Staubach, Petra; Augustin, Matthias; Eisert, Lisa; Hünerbein, Andreas; Nast, Alexander; Reimann, Holger; Strömer, Klaus; Mahler, Vera

    2018-03-01

    Diese Leitlinie richtet sich an Assistenz- und Fachärzte der Dermatologie sowie an Kostenträger und politische Entscheidungsgremien. Die Leitlinie wurde im formellen Konsensusverfahren (S2k) von Dermatologen unter Einbindung von Apothekern erstellt. Die Leitlinie stellt allgemeine Aspekte der Pharmakokinetik sowie der regulatorischen Begrifflichkeiten dar. Es werden Empfehlungen zur Indikation von Magistralrezepturen sowie deren Qualitätssicherung gegeben. Die Bedeutung der galenischen Grundlagen und die Problematik bei einer Substitution gegeneinander verschiedener Grundlagen werden dargestellt. Die Leitlinie umfasst Kriterien zur Auswahl einer adäquaten Grundlage sowie spezifische Aspekte zur Therapieplanung. Die Leitlinie gibt Empfehlungen zum Management bei Unverträglichkeiten gegenüber Bestandteilen der Grundlagen oder Hilfsstoffe. © 2018 The Authors | Journal compilation © Blackwell Verlag GmbH, Berlin.

  13. Der Weg zum Java-Profi Konzepte und Techniken für die professionelle Java-Entwicklung

    CERN Document Server

    Inden, Michael

    2015-01-01

    Sie haben bereits Einiges an Erfahrung mit Java und möchten Ihre Entwicklungstätigkeit nun professionalisieren? Oder sind Sie schon auf dem Weg zum Profi, benötigen aber ein Nachschlagewerk, das Ihnen die wichtigen Themen aus der Java-Welt kompakt und kompetent vermittelt? Dieses Buch bietet eine umfassende Einführung in die professionelle Entwicklung und vermittelt Ihnen das notwendige Wissen, um stabile und erweiterbare Softwaresysteme auf Java-SE-Basis zu bauen. Praxisnahe Beispiele helfen dabei, das Gelernte rasch umzusetzen. Neben der Praxis wird viel Wert auf das Verständnis zugrunde liegender Konzepte gelegt. Dabei kommen dem Autor Michael Inden seine umfangreichen Schulungs- und Entwicklererfahrungen zugute - und Ihnen als Leser damit ebenso. Diese Neuauflage wurde durchgehend überarbeitet, aktualisiert und erweitert. Natürlich darf das aktuelle Java 8 nicht fehlen. Verschiedene Kapitel sind Java 8 und seinen Neuerungen gewidmet. Dort wird ein fundierter Einstieg in die umfangreichen Erweit...

  14. Status seminar on BMBF-funded research projects in ecotoxicology. Proceedings; Statusseminar zum Foerderschwerpunkt `Oekotoxikologie` des BMBF. Proceedings

    Energy Technology Data Exchange (ETDEWEB)

    Kirchner, M. [ed.; Bauer, H. [ed.

    1995-07-01

    Research projects in the field of ecotoxicology are presented, with particular regard to aquatic and terrestrial ecotoxicology. The report covers pollutant effects on plancton and fish and pollutant monitoring in streams. The effects, distribution and mobility of PAH, PCB and other pollutants in soils and pollutant concentrations in microorganisms are gone into. (SR) [Deutsch] Vorgestellt werden die Forschungsvorhaben zum Thema Oekotoxikologie. Schwerpunkte hierbei sind die aquatische Oekotoxokologie und die terrestrische Oekotoxikologie. Berichtet wird ueber die Wirkung von Fremdstoffen auf Plankton und Fischen, sowie die Bewertung der Belastung von Fliessgewaessern.Ausserdem wird die Wirkung, Verteilung und die Mobilitaet von PAK, PCB und anderen Schadstoffen in Boeden dargestellt, sowie die Belastung von Mikroorganismen mit Schadstoffen. (SR)

  15. „… höher als die Liebe zur Wissenschaft steht die Treue zum eigenen Vaterland …“: Hallenser Romanisten im Ersten Weltkrieg

    Directory of Open Access Journals (Sweden)

    Annette Schiller

    2014-12-01

    Full Text Available Die 1914 verbreitete Kriegsbegeisterung nahm auch die Romanisten nicht aus. Briefe und Tagebuchnotizen aus der Zeit zeigen, wie Lehrende und Studenten unseres Faches, deren gemeinsamer Bezug die Zugehörigkeit zum Romanischen Seminar Halle war, vom „Großen Krieg“ betroffen waren und führen uns die Situation und Geisteshaltung der Professoren und Studenten und die Rückwirkungen des Krieges auf das Fach vor Augen.

  16. Das Unsichtbare sichtbar machen. Zum vergessenen Beitrag der alten deutschen Frauenbewegung zur Wohn- und Siedlungsreform im frühen 20. Jahrhundert

    Directory of Open Access Journals (Sweden)

    Claudia Wucherpfennig

    2007-03-01

    Full Text Available Der Wohnungs- und Städtebau der Moderne gilt weitgehend als eine „Männerdomäne”. In ihrer Schrift Die Wohnungsfrage ist Frauensache! zeigen Ulla Terlinden und Susanna von Oertzen demgegenüber die vielfältigen und einflussreichen Beiträge der alten deutschen Frauenbewegung zur Wohnungsreform des frühen 20. Jahrhunderts und zum Neuen Bauen auf.

  17. Feinkartierung von Loss of Heterozygosity-Intervallen auf Chromosom 11p und Untersuchungen zum Expressions- und Methylierungsstatus von FANCF beim Ovarialkarzinom

    OpenAIRE

    Schulze, Kathrin

    2011-01-01

    Um Tumorsuppressorgene beim Ovarialkarzinom zu identifizieren wurde eine Kartierung von LOH-Intervallen der Region 11p15.5 - 11p11.2 mittels 11 Mikrosatellitenmarkern an 47 Ovarialtumorproben vorgenommen. Im Bereich des ST5- und AFM255/KAI1-Locus konnten potentielle Intervalle abgegrenzt werden. Das Fanconi Anämie Gen FANCF wurde für Untersuchungen zum Expressions- und Methylierungsstatus ausgewählt, da dessen Abschaltung mit einem besseren Ansprechen auf Cisplatin bei Ovarialkarzinompatienti...

  18. ‹Portale›, die zum Nachdenken anregen. Einblicke in eine Interfaceanalyse des Augmented Reality Spiels Ingress

    Directory of Open Access Journals (Sweden)

    Franco Rau

    2017-02-01

    Full Text Available Augmented Reality Spiele wie ‹Ingress› und ‹PokémonGo› stellen aktuell neue mediale Phänomene dar. Eine zentrale Differenz zu klassischen Massively Multiplayer Online Games (MMOs ist die Verzahnung von virtuellen und realen Objekten als konstitutive Spielelemente. In Anknüpfung an die Perspektive, digitale Spiele als Kultur- und Bildungsräume zu verstehen, widmet sich der Beitrag der Frage, inwiefern das Ingress-Spielen die Perspektive von Spieler/innen auf den öffentlichen Raum verändern kann. In erster Annäherung an diese Fragestellung wird auf Basis einer Interfaceanalyse gezeigt, wie ‹Portale› – virtueller Repräsentationen realer Objekte im Spiel – potenziell Irritationen und Differenz­erfahrungen ermöglichen. Diese können zum Ausgangspunkt weiterführender Reflexionen werden. Dafür werden exemplarisch ‹Portale› diskutiert, die (1. weiterführende Informationen zu realen Objekte bieten, die (2. Momentaufnahmen nicht mehr existierender kultureller Objekte darstellen und die (3. reale Objekte in ironischer Weise präsentieren.

  19. Smart market. From smart grid to the intelligent energy market; Smart Market. Vom Smart Grid zum intelligenten Energiemarkt

    Energy Technology Data Exchange (ETDEWEB)

    Aichele, Christian [Hochschule Kaiserslautern, Zweibruecken (Germany). Fachbereich Betriebswirtschaft; Doleski, Oliver D. (ed.)

    2014-07-01

    Dare more market. - The design of this postulate provides an important contribution to the success of the German energy transition. The Bundesnetzagentur has shown with its highly regarded benchmark paper on smart grids and markets leads the way towards more market in the energy sector. The therein required differentiation in a network and market sphere contributes to greater transparency on the consumer side and enables a gid releaving shift in energy consumption. The book focuses on actors and roles in the modified market circumstances as well as components and products of a future Smart Markets. Finally, to the reader concrete business models are offered. Authors from science and practice give in this book answers on how the interaction of Smart Grid and Smart Market works. [German] Mehr Markt wagen. - Die Ausgestaltung dieses Postulats liefert einen wichtigen Beitrag zum Gelingen der deutschen Energiewende. Die Bundesnetzagentur hat mit ihrem vielbeachteten Eckpunktepapier zu intelligenten Netzen und Maerkten diesen Weg in Richtung mehr Markt in der Energiewirtschaft gewiesen. Die darin geforderte Differenzierung in eine Netz- und Marktsphaere traegt zu mehr Transparenz auf der Verbraucherseite bei und ermoeglicht eine netzentlastende Verlagerung des Energieverbrauchs. Das Buch beleuchtet Akteure und Rollen im geaenderten Marktumfeld ebenso wie Komponenten und Produkte eines zukuenftigen Smart Markets. Schliesslich werden dem Leser konkrete Geschaeftsmodelle angeboten. Autoren aus Wissenschaft und Praxis geben in diesem Buch Antworten darauf, wie das Zusammenspiel von Smart Grid und Smart Market funktioniert.

  20. Organic tin compounds, alkylphenols and bisphenol A in marine and limnetic specimen from the German federal environmental specimen bank. Methodological developments as well as actual and retrospective monitoring; Organische Zinnverbindungen, Alkylphenole und Bisphenol A in marinen und limnischen Biota der Umweltprobenbank. Methodische Entwicklungen sowie aktuelles und retrospektives Monitoring. Teilberichte 1 - 3: Organische Zinnverbindungen. Alkylphenole und Alkylphenolethoxylate. Biosphenol A

    Energy Technology Data Exchange (ETDEWEB)

    Ruedel, H. [Fraunhofer-Institut fuer Umweltchemie und Oekotoxikologie, Schmallenberg (Germany); Lepper, P.; Sohn, H.; Steinhanses, J.; Boehmer, W.; Wenzel, A.; Bruckert, H.J.

    2001-01-01

    In the context of this research project analytic methods for the quantitative determination of tinorganic compounds (tributyl tin, TBT; dibutyl tin, DBT, monobutyl tin, MBT; triphenyl tin, TPhT), alkylphenols (4-nonylphenol, 4NP; 4-tert.-octylphenol, 4tOP) and alkylphenol ethoxylates (4-nonylphenol monoethoxylate, 4NP1EO; 4-tert.-octylphenol monoethoxylate, 4tOP1EO) as well as bisphenol A (BPhA) in different biological matrices were adapted and optimised. The methods were documented in form of standard operating procedures (SOP). Following these methods samples from the German federal environmental specimen bank were investigated. Brown algae, (bay) mussels, eel pouts, sea gull eggs from the marine ecological systems of the North Sea and Baltic Sea and zebra mussels and bream muscles from fresh water ecological systems (Elbe, Mulde, Saale, Rhine, Saar, Bornhoeveder lake district) of different years were analysed. Tin-organic compounds: TBT and TPhT were detected as major contaminants (max. 385 and 86 {mu}g Sn/kg of matrix, respectively). The maximum values for DBT and MBT were 14 and 9 {mu}g Sn/kg, respectively. The highest values detected for DPhT were 13 {mu}g Sn/kg. The most highly loaded samples were bream muscles and zebra mussels from the river Elbe. Alkylphenols: The contents of 4NP and 4NP1EO mostly were in both, the marine and the fresh water, ecological systems above the contents of 4tOP and 4tOP1EO. In the marine samples the mussels were higher loaded than the other matrices. The contents in the samples from fresh water ecological systems were clearly higher than those of the samples from the marine ecological systems. The highest concentration for 4NP1EO with 324 {mu}g/kg fresh weight was measured in bream muscles from the Saar near Guedingen. Bisphenol A: The content of BPhA in the examined samples generally was low. The analyses resulted in concentrations of 1-2.5 {mu}g BPhA/kg in zebra mussel; only in zebra mussels from the river Saar near Rehlingen

  1. Discussion of the applicability of overdammed fixed-bed reactors in nitrification processes; Beitrag zum Einsatz von ueberstauten Festbettreaktoren zur Nitrifikation

    Energy Technology Data Exchange (ETDEWEB)

    Guenter, H.O.

    1996-12-31

    The investigation aimed at developing a dimensioning method for overdammed fixed bed nitrification reactors with plug flow which takes account of the reactor height. Further, information was to be obtained for assessing sudden loads and for comparing energy consumption with the data of conventional activated sludge plants. (orig./SR) [Deutsch] Ziel dieser Arbeit ist es, fuer ueberstaute, pfropfendurchstroemte Festbettreaktoren zur Nitrifikation einen Bemessungsansatz aufzustellen, welcher den Einfluss der Reaktorhoehe mit beruecksichtigt. Ferner sollten Erkenntnisse zur Beurteilung von Stossbelastungen sowie zum Energiebedarf im Vergleich zu herkoemmlichen Belebungsanlagen gewonnen werden. (orig./SR)

  2. Multimedia CD-Rom on hydrogen and fuel cells. 2. rev. ed.; Die Multimedia CD-Rom zum Thema Wasserstoff und Brennstoffzellen

    Energy Technology Data Exchange (ETDEWEB)

    Anon.

    2007-07-01

    This CD-Rom contains well-presented information with informative illustrations, as well as a large download section with publications, reports, and presentations in.pdf form for in-depth studies. There is also a list of links to selected websites, with short explanations. [German] Die CD zum Thema ''Wasserstoff und Brennstoffzellen'' bietet sowohl gut gegliederte Informationen mit anschaulichen Bildern fuer die Lektuere am Monitor als auch eine grosse Download-Rubrik, in der zahlreiche Publikationen, Fachberichte, Praesentationen als PDF-Dateien abgelegt sind und fuers Studium bereitstehen. Ausserdem gibt es ein Link-Verzeichnis mit Verweisen und Erlaeuterungen zu ausgewaehlten Internet-Seiten.

  3. Die ILO-Standards zum Schutz von Arbeitnehmerrechten : ein Begründungsversuch mit Hilfe der kantischen Position von Norman E. Bowie

    OpenAIRE

    Bäumlisberger, Damian; Brink, Alexander

    2012-01-01

    "Der Beitrag ergründet die normativen Grundlagen der Standards zum Schutz der Arbeitnehmerrechte der International Labour Organization. Auf Basis der kantischen Position des US-amerikanischen Wirtschaftsethikers Norman E. Bowie zeigen die Autoren, dass sich Bowies Theorieansatz grundsätzlich dazu eignet, die vier Kernbereiche der ILO-Aktivitäten ethisch zu fundieren. Jedoch stößt Bowies Position bei der Begründung der ILO-Standards auch auf Grenzen, die nur teilweise mittels zusätzlicher, mit...

  4. Dose management in radiology. Review of the technological status; Dosismanagement in der Radiologie. Ein Ueberblick zum Stand der Technik

    Energy Technology Data Exchange (ETDEWEB)

    Verius, M. [LKH Innsbruck, Universitaetsklinik fuer Radiologie, Innsbruck (Austria)

    2015-08-15

    The Euratom directive 2013/59 (''EU directive for radiation protection'') has to be implemented into national law by spring 2018 and requires a complete recording of patient dosages and relevant parameters. Additionally, a medical physics expert has to be consulted for each radiological examination above a defined threshold. A complete recording of the dosage administered from all modalities and optimization of the radiological procedures should result in a reduction of the total dosage. This can be achieved by automated systems that incorporate not only the detection of the dose parameters but also the evaluation and analysis of these data. When provided with warning levels such a system should be able to inform or warn the operator when dose thresholds have been exceeded or even better inform the operator about possible excess dosages before an examination. Depending on the information provided by the modality, dose management systems can operate at different levels in the picture archiving and communication system (PACS), radiological and hospital information systems (RIS/HIS) or with the header information of a digital imaging and communications in medicine (DICOM) image and evaluate and analyze this data. A practicable use of such systems is only possible by close cooperation of medical personnel, medical physicists and information technology (IT) administrators. Various systems are available commercially or free but an individual adaptation of these systems is useful and necessary, depending on the requirements of the radiology practice or hospital. (orig.) [German] Die Euratom-Richtlinie 2013/59 (''EU-Richtlinie zum Strahlenschutz'') besagt, dass sie bis zum Fruehjahr 2018 in nationales Recht der Mitgliedstaaten umgesetzt werden muss, d. h. eine lueckenlose Erfassung der Patientendosen zu erfolgen hat. Ausserdem muss zu jeder Modalitaet in einem bestimmten Ausmass ein Medizinphysikexperte hinzugezogen werden. Die

  5. Training to NDT construction experts (ZFPBau). Developments in recent years; Ausbildung zum ZfPBau-Experten. Entwicklungen der letzten Jahre

    Energy Technology Data Exchange (ETDEWEB)

    Taffe, Alexander [Hochschule fuer Technik und Wirtschaft, Berlin (Germany); Feistkorn, Sascha [SVTI Schweizerischer Verein fuer technische Inspektionen, Wallisellen (Switzerland). Nuklearinspektorat; Dauberschmidt, Christoph [Hochschule Muenchen (Germany)

    2016-05-01

    Classical destructive test methods are fixed part of industrial sectors for decades such as aerospace, automotive, railway and power plants. A high degree of standardization of procedures, and training in form of an ISO standard are present, but not in non-destructive testing of civil engineering (ZfPBau). Except for the rebound hammer NDT methods in civil engineering are not standardized. Also of personnel qualifications can be found in regulations very few requirements, although it is obvious that this is an indispensable prerequisite for the proper application of the procedures and reliable inspection results. In this contribution experiences with a presented training concept in which the construction inspector will trained to DIN 1076 in a two-day course. Here are the necessary conditions worked out, such as the creation of suitable test bodies or the definition of necessary course content for establishing training courses. [German] Klassische zerstoerungsfreie Pruefverfahren sind seit Jahrzehnten fester Bestandteil industrieller Bereiche wie Luftfahrt, Automotive, Eisenbahn und Kraftwerke. Ein hoher Normungsgrad der Verfahren und Ausbildungsstandards in Form einer ISO-Norm liegen vor. Bei der zerstoerungsfreien Pruefung im Bauwesen (ZfPBau) ist das anders. Bis auf den Rueckprallhammer sind ZfPBau-Verfahren nicht genormt. Auch zur Personalqualifikation finden sich in Regelwerken nur sehr wenige Anforderungen, obwohl es offensichtlich ist, dass dies eine unverzichtbare Voraussetzung fuer die richtige Anwendung der Verfahren und zuverlaessige Pruefaussagen ist. In diesem Beitrag werden Erfahrungen mit einem Ausbildungskonzept vorgestellt, bei dem Bauwerkspruefer nach DIN 1076 in einem zweitaegigen Lehrgang ausgebildet werden. Dabei werden die notwendigen Voraussetzungen heraus gearbeitet, wie z.B. die Erstellung von geeigneten Testkoerpern oder die Festlegung notwendiger Kursinhalte, die zum Etablieren von Ausbildungskursen erforderlich sind.

  6. Futurelab Medienpädagogik: Qualitätsentwicklung – Professionalisierung – Standards. Thesenpapier zum Forum Kommunikationskultur 2017 der GMK

    Directory of Open Access Journals (Sweden)

    Thomas Knaus

    2017-10-01

    Full Text Available Das Forum Kommunikationskultur der Gesellschaft für Medienpädagogik und Kommunikationskultur (GMK steht im Jahr 2017 unter dem Anspruch, sich mit Fragen der Qualitätsentwicklung medienpädagogischen Handelns in Wissenschaft und Praxis auseinanderzusetzen. Dabei soll besonderes Augenmerk auf Fragen der Professionalisierung und der Entwicklung von Standards gelegt werden. Zu diesen Fragen stellen wir im Folgenden ausgewählte Thesen mit ergänzenden und erweiternden Erläuterungen im Sinne eines programmatischen Textes zur Diskussion. Die mit diesem Papier anzustossende Diskussion soll zunächst einer konstruktiv-weiterführenden internen Klärung wichtiger Fragen medienpädagogischer Praxis und Forschung dienen und dabei auch anzeigen, welche Positionen in der Community konsensfähig sind und welche möglicherweise strittig erscheinen. Zugleich sollen die Thesen und die Diskussion zu einer Positionsbestimmung der GMK bezüglich praktischer und wissenschaftlicher medienpädagogischer Arbeit nach aussen beitragen. Mit der Diskussion ist das Ziel verbunden, künftige Bedarfe für Handlungs- und Forschungsfelder der Medienpädagogik – jedoch ohne Anspruch auf Vollständigkeit – zu identifizieren. Um der Prägnanz und Kürze willen, wird der zu jeder These gehörende Hintergrund nur knapp angedeutet, ohne die damit verbundenen (teils sehr umfassenden Diskurse im Detail nachzuzeichnen. Angegebene Literaturbezüge sollen jeweils beispielhaft auf differenzierende und tiefergehende Ausführungen verweisen. Die Thesenfolge beginnt mit Überlegungen zum technikinduzierten gesellschaftlichen Wandel („Digitalisierung“ und seiner Bedeutung für die Medienbildung. Dies vorausschickend, gehen wir auf Fragen der Qualifizierung und Professionalisierung für praktisches Handeln sowie auf die Rolle der Medienpädagogik als Wissenschaft und schliessend auf den Stellenwert von Standards zur Orientierung und Reflexion ein.

  7. Thermodynamic analysis of a fuel-cell-system for automotive transportation; Thermodynamische Analyse eines Brennstoffzellensystems zum Antrieb von Kraftfahrzeugen

    Energy Technology Data Exchange (ETDEWEB)

    Berger, Oliver

    2009-09-28

    inclination angle profile of the Grossglockner mountain is followed on the test stand with a speed of 55 km/h without overheating of the cooling system. After optimization of the cooler design and positioning, the new vehicle was able to meet the specifications while the first of the two vehicles only achieved 35 km/h without overheating of the cooling system. Finally, a theoretical investigation identified the measures that should be taken to achieve sufficient cooling in countries with hot climates, e.g. the USA. It was found that it would be sufficient to raise the coolant temperature from 90 C to about 110 C to ensure good performance in these climate zones. (orig.) [German] Ziel der vorliegenden Arbeit ist die thermodynamische Analyse und Optimierung eines Brennstoffzellensystems zum Antrieb von Kraftfahrzeugen. Der Fokus ist im Wesentlichen auf die Kuehlung des Brennstoffzellenstapelmoduls gelegt, wobei aufgrund der Vielzahl an Schnittstellen zwischen der Kuehlung und den anderen Teilsystemen (Wasserstoff- und Luftversorgung) auch eine ganzheitlichere Betrachtung erforderlich ist. Ausgangspunkt der Untersuchungen ist ein bestehendes Brennstoffzellenfahrzeug, anhand dessen in einem ersten Schritt experimentelle Untersuchungen auf Systempruefstaenden und im Klimawindkanal durchgefuehrt werden. Die gewonnenen Messdaten dienen zum einen der Darstellung des Ist-Zustands und zur Ermittlung des Grenzbereichs der Waermeabfuhr an die Umgebung ueber das Brennstoffzellen-Kuehlsystem. Zum anderen werden sie zur Validierung eines dynamischen Kuehlsystemsimulationsmodells herangezogen. Mittels dieses Simulationsmodells werden anschliessend im Rahmen von Sensitivitaetsanalysen die wesentlichen Einflussfaktoren zur Steigerung der Waermeabfuhr an die Umgebung ermittelt. Die daraufhin durchgefuehrten Optimierungen betreffen die Verschaltung der Systemkomponenten sowie deren Auslegung und Platzierung im Fahrzeugvorderwagen. Auf Basis dieser und weiterer Erkenntnisse wird ein weiteres

  8. Comparison of balance of tritium activity in waste water from nuclear power plants and at selected monitoring sites in the Vltava River, Elbe River and Jihlava (Dyje) River catchments in the Czech Republic.

    Science.gov (United States)

    Hanslík, Eduard; Marešová, Diana; Juranová, Eva; Sedlářová, Barbora

    2017-12-01

    During the routine operation, nuclear power plants discharge waste water containing a certain amount of radioactivity, whose main component is the artificial radionuclide tritium. The amounts of tritium released into the environment are kept within the legal requirements, which minimize the noxious effects of radioactivity, but the activity concentration is well measurable in surface water of the recipient. This study compares amount of tritium activity in waste water from nuclear power plants and the tritium activity detected at selected relevant sites of surface water quality monitoring. The situation is assessed in the catchment of the Vltava and Elbe Rivers, affected by the Temelín Nuclear Power Plant as well as in the Jihlava River catchment (the Danube River catchment respectively), where the waste water of the Dukovany Nuclear Power Plant is discharged. The results show a good agreement of the amount of released tritium stated by the power plant operator and the tritium amount detected in the surface water and highlighted the importance of a robust independent monitoring of tritium discharged from a nuclear power plant which could be carried out by water management authorities. The outputs of independent monitoring allow validating the values reported by a polluter and expand opportunities of using tritium as e.g. tracer. Copyright © 2017 Elsevier Ltd. All rights reserved.

  9. Foucault und das Recht: Besprechung von: Christian Schauer, Aufforderung zum Spiel. Foucault und das Recht, Böhlau (Weimar, Köln, Wien 2006, 383 Seiten.

    Directory of Open Access Journals (Sweden)

    Thomas Biebricher

    2007-04-01

    Full Text Available Der Autor rekonstruiert Foucaults Werk zwischen den Jahren 1961 und 1975 und integriert hierbei Perspektiven anderer Autoren (Derrida, Luhmann und Nietzsche, welche zu verwandten Themenkreisen arbeiten und/oder Foucaults Herangehensweise geprägt haben. Eigentliches Ziel der Arbeit ist es, Foucaults Beitrag zur Rechtsgeschichte und –soziologie zu beleuchten. Diese Thematik ist im deutschen Sprachraum bis jetzt kaum systematisch untersucht worden, und dementsprechend gebührt Schauers Studie besondere Beachtung. Der Autor betont Foucaults Ausführungen zum Verhältnis zwischen Recht und Psychiatrie. Dessen Diagnose hebt die “Kolonisierung” des Rechts durch forensisch psychiatrische Diskurse hervor, und Schauer gelingt es, die problematische Dimension dieser Tendenz mit Hinweis auf die schweizerische Rechtspraxis plausibel zu machen. Fluchtpunkt dieser Entwicklung wäre ein bis zum Extrem “vorbeugendes” Recht, das Gefahrenprävention und Risikoregulierung durch präemptive Verhaltensregulierung den Vorzug vor dem Legalitätsprinzip gewährt.

  10. [Dennis Hormuth. Livonia est omnis divisa in partes tres : Studien zum mental mapping der livländischen Chronistik in der Frühen Neuzeit (1558-1721)] / Anti Selart

    Index Scriptorium Estoniae

    Selart, Anti, 1973-

    2013-01-01

    Arvustus: Hormuth, Dennis. Livonia est omnis divisa in partes tres : Studien zum mental mapping der livländischen Chronistik in der Frühen Neuzeit (1558-1721) (Quellen und Studien zur Geschichte des östlichen Europa, 79). Franz Steiner verlag. Stuttgart 2012

  11. Technical and economic aspects of fuel cell applications in space HVAC systems; Technische und wirtschaftliche Aspekte zum Einsatz von Brennstoffzellen in der Gebaeudeversorgung

    Energy Technology Data Exchange (ETDEWEB)

    Handke, J; Handschin, E

    1999-12-31

    There are two different types of fuel cells for small-scale applications, li.e. polymer electrolyte membrane fuel cells (PEMFC) and high-termperature fuel cells with ceramic solid electrolytes (SOFC). Both types of fuel cells have different advantages and shortcomings. One of the main problems, however, is the fact that research is still going on and that commercial fuel cell systems for space HVAC applications are still not available. (orig.) [Deutsch] Nach dem heutigen Stand werden zwei unterschiedliche Brennstoffzellen-Typen zum Einsatz in Kleinanlagen entwickelt. Neben der zu Klasse der Niedertemperatur-Brennstoffzellen gehoerenden Polymer-Elektrolyt-Membran-Brennstoffzelle (PEMFC) ist dies die Hochtemperatur-Brennstoffzelle auf der Basis eines keramischen Festelektrolyten (SOFC). Beide Brennstoffzellen-Typen haben unterschiedliche Vor- und Nachteile fuer den Einsatz zur Gebaeudeversorgung. Eines der Hauptprobleme, das allerdings beide Zellentypen gemeinsam haben, besteht in der noch nicht abgeschlossenen Entwicklung und - daraus resultierend - der fehlenden kommerziellen Verfuegbarkeit im Bereich der Gebaeudeversorgung. (orig./MM)

  12. Symposium Ecological construction - from half-timbered- to passive house: living yesterday - today - tomorrow; Symposium Oekologische Bauweisen - vom Umgebinde- zum Passivhaus: Wohnen Gestern - Heute - Morgen

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-07-01

    While the first part of the symposium was dedicated to half-timbered buildings in the traditional style of Lausitz, Bohemia and Silesia, the second part discussed passive buildings. [German] Das Umgebindehaus ist ein weltweit einmaliger Haustyp und zum anderen ist es ein traditionelles Haus unserer Region der Oberlausitz und angrenzender Teile von Boehmen und Schlesien. Das Symposium behandelt das Umgebindehaus in Vergangenheit und Gegenwart und will Motivation und Ansaetze geben, dieses wunderschoene Baukulturgut zu erhalten und unter modernen Wohn-, Arbeits- und Lebensbedingungen zu nutzen. Der zweite Teil der Tagung ist nicht minder wichtig. Beim Passivhaus geht es im wesentlichen darum, Heizwaermeverluste im Winter so klein zu halten, dass sie von den Gewinnen (Sonnenenergie, inneres Waermeaufkommen u.a.) gedeckt werden koennen. Damit wird der Waermeschutz des Gebaeudes vielleicht bis an die Grenzen getrieben und es entstehen neue Anforderungen an das Energiemanagement und die Qualitaet der technischen Gebaeudeausruestung. (orig.)

  13. Proceedings on the seminar on small hydroelectric installations: Practice report and current development; Beitraege zum Seminar Kleinwasserkraft: Praxis und aktuelle Entwicklung

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-12-31

    This seminar on small hydroelectric installations informs on aspects of construction and administrative aspects. But above all, questions of machinery are dealt with. The book gives an overview of turbine types, topical recent developments in the sector of small hydroelectric power stations, and modern opportunities for fast and inexpensive design of power station components. Beyond the discussion of technical issues, the seminar wants to further contacts between science, turbine manufacturers, consultants and plant operators. (orig.) [Deutsch] Das Seminar Kleinwasserkraft gibt eine Uebersicht ueber bauliche Gestaltung und behoerdliche Aspekte. Vorallem behandelt es aber maschinenbauliche Problemstellungen. Es zeigt einen Ueberblick ueber Turbinentypen, aktuelle Neuentwicklungen im Kleinwassersektor, sowie moderne Moeglichkeiten zum schnellen und preiswerten Design von Kraftwerkskomponenten. Neben dem technischen Teil dient das Seminar auch der Foerderung des Kontakts zwischen Wissenschaft, Turbinenherstellern, Consultants und Anlagenbetreibern. (orig.)

  14. The risk for cancer and genetic abnormalities after radioiodine treatment of hyperthyroidism; Zum Krebs- und genetischen Risiko nach Radioiodtherapie der Hyperthyreose

    Energy Technology Data Exchange (ETDEWEB)

    Reiners, C. [Wuerzburg Univ. (Germany). Klinik und Poliklinik fuer Nuklearmedizin

    1997-12-01

    According to recent studies, the risk for thyroid cancer is not increased after radioiodine treatment in patients with hyperthyroidism. Only the risk of cancer of the stomach seems to be increased slightly in patents treated with I-131 because of functional autonomy. However, the risk for gastric cancer is not increased after higher activities of I-131 because of thyroid cancer. There is no increased risk for genetic abnormalities after radioiodine treatment of hyperthyroidism. (orig.) [Deutsch] Aktuelle Studien zum Karzinomrisiko nach Radioiodtherapie wegen Hyperthyreose ergeben keinen Anhalt fuer eine erhoehte Inzidenz des Schilddruesenkarzinoms nach therapeutischer Gabe von I-131. Allenfalls scheint die Inzidenz von Magenkarzinomen bei Patienten nach Radioiodtherapie wegen funktioneller Autonomie geringfuegig erhoeht zu sein, obwohl diese Beobachtung bei Patienten nach hochdosierter Radioiodtherapie wegen eines Schilddruesenkarzinoms nicht gemacht wurde. Hinweise fuer ein erhoehtes genetisches Risiko nach Radioiodtherapie der Hyperthyreose ergeben sich nicht. (orig.)

  15. Recommendations for the use of bioindicators in the frame of Environmetnal Impact Assessment (EIA); Empfehlungen zum Einsatz von Bioindikationsverfahren im Rahmen des Umweltvertraeglichkeitspruefungsgesetzes (UVPG)

    Energy Technology Data Exchange (ETDEWEB)

    Zimmermann, R.D. [Gesellschaft Deutscher Chemiker (GDCh) (Germany). Arbeitskreis Bioindikation]|[Fachhochschule Bingen (Germany). Fachbereich Umweltschutz; Debus, R. [Fachhochschule Wiesbaden (Germany). Fachbereich MND - Umwelttechnik; Franzaring, J. [AB-DLO Wageningen (Netherlands); Hoepker, K.A. [Landesanstalt fuer Umweltschutz, Karlsruhe (Germany); Maier, W. [TUEV Ecoplan Umwelt GmbH, Filderstadt (Germany); Reiml, D. [TUEV Ecoplan Umwelt GmbH, Muenchen (Germany); Finck, M. [Verein Deutscher Ingenieure (VDI) - Kommission Reinhaltung der Luft (RdL), Duesseldorf (Germany)

    1998-11-01

    The paragraph 2 of the German law on Environmental Impact Assessment (law on EIA) requires to determine, to record and to assess the effects which proposed major projects in the areas of industry, local government and transport have on man, animals, plants, soil, water, air, climate, landspace, assets and cultural heritage including the interactions between different media. For this purpose, bioindication is an effective tool. Up to now, the different methods of bioindication were not applied sufficiently although some of the methods have already been standardised in guidelines (VDI, DIN). Users and authorities might feel insecure which bioindication method should be applied when assessing the impacts of a given project. This paper gives recommendations which bioindication method should be applied for the different major projects listed in the law on EIA. A widespread set of data obtained by the use of bioindicators is necessary to meet the demands of paragraph 2. (orig.) [Deutsch] Das Umweltvertraeglichkeitspruefungsgesetz (UVPG) verlangt in Paragraph 2 die Ermittlung, Beschreibung und Bewertung der Auswirkungen eines Vorhabens auf Menschen, Tiere und Pflanzen, Boden, Wasser, Luft, Klima und Landschaft einschliesslich der jeweiligen Wechselwirkungen sowie auf Kultur- und sonstige Sachgueter. Die Bioindikation kann hier wesentliche Dienste leisten. Bislang kamen die verschiedenen, z.T. in Richtlinien (VDI, DIN) vereinheitlichten Verfahren noch zu selten zum Einsatz. Ein Grund hierfuer duerfte in der Unsicherheit der Anwender sowie der Genehmigungsbehoerden liegen, welches Bioindikationsverfahren fuer welches UVPG-Vorhaben eine geeignete Erfassungs- und Bewertungsmethode erlaubt. Zu diesem Zweck werden fuer ausgewaehlte, gemaess UVPG genehmigungsbeduerftige Vorhaben Empfehlungen zum Einsatz von Bioindikationsverfahren erteilt. Erst durch zahlreiche Untersuchungsergebnisse aus diesen Verfahren koennen die Forderungen nach Paragraph 2 UVPG aussagekraeftig erfuellt

  16. Review: Dominik Schrage (Ed. (2005. Die Flut. Diskursanalysen zum Dresdner Hochwasser im August 2002 [The Flood. Discourse Analyses on the Dresden Flood in August 2002

    Directory of Open Access Journals (Sweden)

    Annika Mattissek

    2007-05-01

    Full Text Available The volume edited by Dominik SCHRAGE documents the results of a research seminar held by the editor at the Department of Sociology, Technical University of Dresden, in the spring term of 2004 and fall term of 2004/05. The contributions are based mainly on discourse analysis of print media coverage of the Elbe flood in the summer of 2002. Topics include a reflection on the possibilities of implementing FOUCAULTian discourse theory within empirical research projects, as well as formal characteristics of the flood discourse, the mutual interference between the reports on the election campaigns for the Bundestag and on the flood, and finally the image of nature emerging within the flood discourse. The volume shows the potential of FOUCAULT's discourse analysis for current social events and outlines possible methodological implementations. Moreover, it is a recommended reading for those who are interested in changes in discursive structures within exceptional social circumstances in general and in the social framing of natural disaster in particular. URN: urn:nbn:de:0114-fqs070252

  17. Zum Bildungspotenzial biblischer Texte

    Directory of Open Access Journals (Sweden)

    Theis, Joachim

    2017-11-01

    Full Text Available Biblical education as a holistic process goes far beyond biblical learning. It must be understood as a lifelong process, in which both biblical texts and their understanders operate appropriating their counterpart in a dialogical way. – Neither does the recipient’s horizon of understanding appear as an empty room, which had to be filled with the text only, nor is the latter a dead material one could only examine cognitively. The recipient discovers the meaning of the biblical text recomposing it by existential appropriation. So the text is brought to live in each individual reality. Both scientific insights and subjective structures as well as the understanders’ community must be included to avoid potential one-sidednesses. Unfortunately, a special negative association obscures the approach of the bible very often: Still biblical work as part of religious education appears in a cognitively oriented habit, which is neither regarding the vitality and sovereignty of the biblical texts nor the students’ desire for meaning. Moreover, the bible is getting misused for teaching moral terms or pontifications. Such downfalls can be disrupted by biblical didactics which are empowerment didactics. Regarding the sovereignty of biblical texts, these didactics assist the understander with his/her individuation by opening the texts with focus on the understander’s otherness. Thus each the text and the recipient become subjects in a dialogue. The approach of the Biblical-Enabling-Didactics leads the Bible to become always new a book of life. Understanding them from within their hermeneutics, empowerment didactics could be raised to the principle of biblical didactics in general and grow into an essential element of holistic education.

  18. Herkommer zum Hinschauen

    OpenAIRE

    Schilling, Jörg

    2011-01-01

    Tagung: Moderne Architektur exemplarisch. Hans Herkommer (1887-1956). Technische Universität Kaiserslautern, Lehrgebiet Geschichte und Theorie der Architektur. Prof. Dr. phil. Matthias Schirren. 28.-29. Oktober 2010

  19. Ein Experiment zum Anlegerverhalten

    OpenAIRE

    Weber, Martin; Camerer, Colin F.

    1992-01-01

    Portfolio selection is one important example of decision making under risk. We empirically investigate how decision makers behave when making these decisions, As a baseline we compare this intuitive decision making with the optimal decision making described by Markowitz' portfolio theory. Our results show that intuitive behavior is quite different from optimal behavior. Especially, subjects did not hold the optimal risky portfolio and they trade much more than predicted by portfol...

  20. Zum Ökologieschwerpunkt

    DEFF Research Database (Denmark)

    Czeskleba-Dupont, Rolf

    2009-01-01

    Sammenfaldet mellem en økologisk og en økonomisk krise blev allerede diskuteret i Das Argument 93/1975 med dets destruktive følger i forhold til nødvendige økologiske forbedringer. I dag diskuteres en 'Grøn New Deal' som løsning for kapitalismen og for klimaproblemet. Dette problematiseres ud fra...

  1. Zum Studium der Anthroposophie

    OpenAIRE

    Schlüter, Martin

    2014-01-01

    Johann Wolfgang v. Goethe und Rudolf Steiner haben beide auf verschiedenen Wegen eine Denkungsart entwickelt, deren Quelle diese Anschauungskraft ist. Eine Denkungsart, die nicht dabei stehenbleibt über die Dinge und Wesen nachzudenken, sondern die sie vielmehr in Gedankenform erstehen und so ihr Wesen unmittelbar erlebbar werden lässt. Goethe wandte sich dabei den Naturreichen zu und gestaltete seine ‚gegenständliche' Denkungsart zu einer naturwissenschaftlichen Methode aus, die er für weit ...

  2. LED; Zum Thema LED

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2010-07-01

    This collection of articles on the subject of light emitting diodes (LED) provides technical information on LED technology, examines latest developments and provides examples of LED use in practice. An 'ABC' of LED technology is presented and fifteen common LED mistakes are noted. The chances and risks of LED use are discussed as is the retrofitting of lighting installations with LEDs. The use of LEDs in street lighting is examined. The journal also includes interviews with architects and a lighting designer. Practical examples of the use of LEDs include the refurbished parliamentary library in Berne, their use in the bird sanctuary headquarters in Sempach, Switzerland, as well as LED use in sales outlets. Also, the use of LED lighting in a spa gazebo in Lucerne is examined.

  3. Long-term observations on the influence of groundwater level variations on BTEX concentrations in groundwater; Langzeituntersuchungen zum Einfluss von Grundwasserschwankungen auf die BTEX-Konzentration im Grundwasser

    Energy Technology Data Exchange (ETDEWEB)

    Puettmann, W. [J.W. Goethe-Universitaet Frankfurt a. M., Institut fuer Atmosphaere und Umwelt, AG Umweltanalytik, Frankfurt/Main (Germany); Hettwer, K.; Warrelmann, J. [Universitaet Bremen, Zentrum fuer Umweltforschung und Umwelttechnologie, Bremen (Germany); Gaab, S.

    2007-06-15

    A long-term study on natural attenuation and remediation in soil and groundwater at the former military base Schaeferhof-Sued (Niedersachsen) was performed at a former gasoline filling station. At this locality, a large residual source of benzene, toluene, ethylbenzene, xylenes (BTEX) and additional petroleum hydrocarbons is present in the soil. BTEX-concentrations in the groundwater and their correlation with groundwater level variations were monitored for three years. Within the monitoring period, a very dry summer was recorded, which caused the groundwater level to drop by 1.7 m and the BTEX concentrations to increase from 240 {mu}g/l to 1300 {mu}g/l at the site of contamination. The microbial degradation of BTEX was documented by data on consumption of electron acceptors (oxygen, nitrate or sulphate) and production of reduced products (Fe(II), methane). The degradation is further supported by the detection of metabolites. Therefore, the increasing BTEX concentrations were not a consequence of limited biological degradation. (orig.) [German] Auf dem frueher militaerisch genutzten Gelaende Schaeferhof-Sued (Niedersachsen) wurden im Bereich einer ehemaligen Abfuellstation fuer Kraftstoffe Langzeituntersuchungen zum natuerlichen Schadstoffabbau und -rueckhalt im Boden und Grundwasser durchgefuehrt. Der Standort weist eine hohe Restkontamination der Verbindungen Benzol, Toluol, Ethylbenzol und Xylole (BTEX), sowie Mineraloelkohlenwasserstoffen (MKW) in der ungesaettigten Bodenzone auf. Ueber einen Zeitraum von drei Jahren wurden die BTEX-Konzentrationen im Grundwasser und deren Abhaengigkeit von einer Aenderung des Grundwasserstandes untersucht und eine negative Korrelation der Schadstoffkonzentrationen mit der Hoehe des Grundwasserstandes festgestellt. Im Beobachtungszeitraum lag das sehr trockene Sommerhalbjahr 2003, was im Vergleich zum vorhergehenden Winterhalbjahr eine Absenkung des Grundwasserspiegels um 1,7 m zur Folge hatte und die BTEX-Konzentrationen am

  4. Keine Angst vor der Muttersprache – vor den (anderen Fremdsprachen aber auch nicht! Überlegungen zum Verhältnis von Einsprachigkeit und Zweisprachigkeit im Fremdsprachenunterricht

    Directory of Open Access Journals (Sweden)

    Frank G. Königs

    2015-10-01

    Full Text Available Die heute vorliegenden Forschungsergebnisse erlauben einen differenzierteren Blick auf die Rolle der Muttersprache bei der Aneignung einer fremden Sprache. Im vorliegenden Beitrag wird versucht, dieses differenzierte Bild nachzuzeichnen und die Rolle der Muttersprache aus unterschiedlichen Perspektiven auszuleuchten: Welche Erkenntnisse zur Sprachverarbeitung und zum Spracherwerb und welche vermittlungsmethodische Einsichten erlauben uns, die Rolle der Muttersprache zu bestimmen? Welche Bedeutung haben dabei der Bezug zur außerunterrichtlichen Realität der Lernenden und die dem scheinbar gegenüber-stehende natürliche Künstlichkeit des Fremdsprachenunterrichts? Was bedeutet dies alles für den Umgang mit Sprachen im fremdsprachlichen Klassenzimmer und im bilingualen Sachfachunterricht?  Recent research allows a more nuanced view of the role of the mother tongue in acquiring a foreign language. In this paper, an attempt is made to trace this differentiated image and illuminate the role of the mother tongue from different perspectives: What helps us to determine the role of the mother tongue given findings on language processing, language acquisition and (foreign language teaching methods? How do these results relate to the extracurricular realities of learners and the seemingly opposing natural artificiality of language teaching? What are the implications of this when dealing with languages in the foreign language classroom and CLIL?

  5. Investigation of the warm prestress effect by X-ray and microfractographic measurements; Roentgenografische und mikrofraktografische Untersuchungen zum Warmvorbeanspruchungs (WPS) - Effekt

    Energy Technology Data Exchange (ETDEWEB)

    Blumenauer, H.; Eichler, B.; Krempe, M.; Ude, J. [Magdeburg Univ. (Germany). Inst. fuer Werkstofftechnik und Werkstoffpruefung

    1998-11-01

    The work reported was to investigate the changes caused at the crack tip of a specimen with incipient crack and to assess their effects with regard to component fracture. The steels selected for testing are the pressure vessel steels 10MnMoNi5-5 and 17MoV8-4, and the experiments were made with CT-25 specimens. The conclusion drawn from the results obtained is that the WPS effect is due to a stronger energy dissipation in the prestressed area ahead of the crack tip, assisted by intrinsic stress-induced crack closing. (orig./CB) [Deutsch] Das Ziel dieser Arbeit ist es, die durch eine Vorbeanspruchung angerissener Proben hervorgerufenen Veraenderungen an der Rissspitze und ihre Auswirkungen auf das Bruchverhalten zu untersuchen. Die Untersuchungen wurden an den Druckbehaelterstaehlen 10MnMoNi5-5 und 17MoV8-4 durchgefuehrt. Die Versuche wurden an CT-25-Proben durchgefuehrt. Die Autoren kommen zum Schluss, dass der WPS-Effekt mit einer staerkeren Energiedissipation in der vorgeschaedigten Prozesszone vor der Rissspitze, unterstuetzt durch eigenspannungsbedingtes Rissschliessen, erklaert werden kann. (orig./MM)

  6. Investigations into the use of bacteria for enhanced recovery of petroleum; Untersuchungen zum Einsatz von Bakterien zur Erhoehung des Entoelungsgrades in Erdoellagerstaetten

    Energy Technology Data Exchange (ETDEWEB)

    Amro, M.

    1995-06-01

    Strains of bacteria were investigated with a view to their applicability and efficiency in enhanced recovery of petroleum. The mechanisms of enhanced recovery with bacteria were to be clarified as well. The experiments were carried out as static autoclave experiments without bedrock and as dynamic flooding experiments in a model pore space (Bentheim sandstone and carbonate rock) under the conditions of North German petroleum deposits. The static experiments carried out preliminary to the more time-consuming dynamic flooding experiments were to help with an optimized design of the injection experiments. (orig.) [Deutsch] Die vorliegende Arbeit hat zum Ziel, entoelungswirksame Bakterienstaemme zu untersuchen und hinsichtlich der durch sie bewirkten Erhoehung des Entoelungsgrades zu bewerten. Gleichzeitig sollen die Mechanismen aufgeklaert werden, die der Entoelungsverbesserung durch Einsatz von Bakterien zugrunde liegen. Die Experimente wurden als statische Autoklavenversuche ohne Lagerstaettengestein sowie als dynamische Flutversuche im Modellporenraum (Bentheimer Sandstein und karbonatisches Gesteinsmaterial) unter Bedingungen norddeutscher Lagerstaetten durchgefuehrt. Die statischen Versuche, die als Auswahltests den aufwendigeren dynamischen Flutversuchen vorgeschaltet waren, sollten dazu beitragen, die Flutversuche gezielt konzipieren zu koennen. (orig./EF)

  7. Review: Mäder, Maya (2017: Selbsterfahrung in der Psychotherapie (Self experience in Psychotherapy, Die Bedeutung für den Kompetenzerwerb in der Aus- und Weiterbildung zum transaktionalytischen Psychotherapeuten (The significance for getting competence in training of transactional psychotherapy Münster: Waxmann

    Directory of Open Access Journals (Sweden)

    Günther Mohr

    2017-07-01

    Full Text Available Review: Mäder, Maya (2017: Selbsterfahrung in der Psychotherapie (Self experience in Psychotherapy, Die Bedeutung für den Kompetenzerwerb in der Aus- und Weiterbildung zum transaktionalytischen Psychotherapeuten (The significance for getting competence in training of transactional psychotherapy Münster: Waxmann   Citation - APA format: Mohr, G. (2017. Review: Mäder, Maya (2017: Selbsterfahrung in der Psychotherapie (Self experience in Psychotherapy, Die Bedeutung für den Kompetenzerwerb in der Aus- und Weiterbildung zum transaktionalytischen Psychotherapeuten (The significance for getting competence in training of transactional psychotherapy Münster: Waxmann. International Journal of Transactional Analysis Research & Practice, 8(2, 49-50.

  8. E-business solutions for utilities, - current state of implementation on the Internet; E-Business-Branchenloesungen - Untersuchung zum Implementierunsstand im Internet. Der Online-Weg zu den Privatkunden

    Energy Technology Data Exchange (ETDEWEB)

    Koch, M.; Baier, D. [Brandenburgische Technische Univ. Cottbus (Germany). Lehrstuhl fuer Marketing und Innovationsmanagement

    2003-04-22

    In the first part of the contribution the benefit of an e-business system in connection with internet was illustrated by an example. The current state of implementation is the subject of this second part. In an empirical study the websites of 600 utilities were analyzed in detail. The results of this analysis are described in the following. (orig.) [German] In [1] wird der Nutzen eines E-Business-Systems in Verbindung mit dem Internet an einem praktischen Beispiel veranschaulicht. Im Folgenden wird ein Ueberblick zum aktuellen Implementierungsstand in den Enegieversorgungsunternehmen gegeben. In einer empirischen Untersuchung wurden die Webseiten von 600 EVU analysiert, die Ergebnisse der Auswertung werden vorgestellt. (orig.)

  9. Criteria for assembly of in vivo measuring systems using high-resolution {gamma}-spectroscopy for evaluation of incorporated radionuclides; Kriterien zum Aufbau von In Vivo Messsystemen zur hochaufloesenden {gamma}-Spektrometrie inkorporierter Radionuklide

    Energy Technology Data Exchange (ETDEWEB)

    Wahl, W. [GSF Forschungszentrum fuer Umwelt und Gesundheit, Neuherberg (Germany). Inst. fuer Strahlenschutz

    1997-12-01

    The paper reviews the available, fundamental measuring methods relying on {gamma}-spectroscopy for their possible application in whole-body and partial-body counters for detection of manifold incorporation of radionuclides. Particular emphasis is placed on the response functions of various detectors, the assembly, the differentiated radioactivity distribution in the body, the various components of background activity and the corresponding suppression mechanisms, and possible ways of using the energy dependence for optimised detection of specific {gamma} energies in a given body region. Criteria and relations as well as their advantages and drawbacks are discussed. (orig./CB) [Deutsch] Diese Arbeit prueft die zur Verfuegung stehenden grundlegenden, {gamma}-spektroskopischen Messmethoden auf deren moegliche Anwendung im Spektrum der Ganz- und Teilkoerperzaehler zum Nachweis der mannigfach inkorporierten Radionuklide. Insbesondere wird eingegangen auf die Response Funktionen verschiedener Detektoren, die Anordnung, die differenzierte Aktivitaetsverteilung im Koerper, die verschiedenen Untergrundkomponenten und deren Unterdrueckungsmechanismen sowie die Beeinflussung durch die Energieabhaengigkeit zum optimalen Nachweis spezifischer {gamma}-Energien an einem bestimmten Ort am Koerper. Kriterien und Relationen sowie deren Vor- und Nachteile werden diskutiert. (orig.)

  10. 27 January 2012 - Mitglieder des Stiftungsrates Academia Engelberg und Gesellschaft zum Bettag Luzern Schweiz welcomed by Head of International Relations F. Pauss; visiting LHC tunnel at Point 5 and CMS experimental cavern; in the LHC superconducting magnet test hall SM18.

    CERN Multimedia

    Maximilien Brice

    2012-01-01

    27 January 2012 - Mitglieder des Stiftungsrates Academia Engelberg und Gesellschaft zum Bettag Luzern Schweiz welcomed by Head of International Relations F. Pauss; visiting LHC tunnel at Point 5 and CMS experimental cavern; in the LHC superconducting magnet test hall SM18.

  11. Paweł Bąk, Die Metapher in der Übersetzung. Studien zum Transfer der Aphorismen von Stanisław Jerzy Lec und der Gedichte von Wisława Szymborska, Peter Lang Europäischer Verlag der Wissenschaft en, Frankfurt am Main u. a. 2007 =...

    OpenAIRE

    Zieliński, Lech

    2008-01-01

    Paweł Bąk, Die Metapher in der Ubersetzung. Studien zum Transfer der Aphorismen von Stanisław Jerzy Lec und der Gedichte von Wisława Szymborska, Peter Lang Europaischer Verlag der Wissenschaft en, Frankfurt am Main u. a. 2007 = Danziger Beitrage zur Germanistik, Bd. 20 wyd. Andrzej Kątny, 332 strony

  12. Alexander von Humboldt und Carlos Montúfar als Reisegefährten: ein Vergleich ihrer Tagebücher zum Chimborazo-Aufstieg

    Directory of Open Access Journals (Sweden)

    Reinhard Andress

    2011-03-01

    Full Text Available ZusammenfassungAls Alexander von Humboldt im Juni 1802 von Quito aus zum Rest seiner lateinamerikanischen Forschungsreise aufbrach, begleitete ihn, abgesehen von Aimé Bonpland, Carlos Montúfar bis nach Europa zurück begleitet, u.a. auch auf beim Versuch, den Chimborazo zu ersteigen. Bis kurz vor der Stadt Cajamarca im heutigen Peru schrieb Montúfar ein relativ unbekanntes Tagebuch zur Reise. Nach einem kurzen Ausflug in das Leben von Humboldts Begleiter steht im Zentrum der weiteren Ausführungen die Frage, ob sein Tagebuch ein anderes Licht auf Humboldt und speziell auf den Aufstiegsversuch wirft. Das läuft auf einen Vergleich der Tagebücher der beiden Reisegefährten hinaus und auf den Versuch, die scheinbaren Widersprüche aufzulösen.AbstractWhen Alexander von Humboldt left Quito in June 1802 in order to undertake the rest of his Latin-American trip of exploration, he was accompanied, aside from Aimé Bonpland, by Carlos Montúfar all the way back to Europe, including the attempt to scale the Chimborazo. Up to shortly before the city of Cajamarca in today’s Peru, Montúfar wrote an relatively unknown diary account of their travels. After a brief excursion into the life of Humboldt’s companion, the question is considered whether his diary sheds a different light on Humboldt and specifically on the mountain climb. That amounts to a comparison of the diaries of the two travel companions and to an attempt to explain the apparent contradictions.ResumenCuando Alexander von Humboldt salió de Quito en junio de 1802 para continuar con el resto de su viaje de exploración por la América Latina, fue acompañado por Carlos Montúfar además de Aimé Bonpland hasta que volvieron a Europa. Este trayecto incluía la tentativa de llegar a la cima del Chimborazo. Hasta un poco antes de la cuidad de Cajamarca que está en el Perú de hoy día, Montúfar mantenía un diario relativamente no conocido del viaje. Después de una breve excursión por

  13. (Kein Grund zur Homosexualität: Ein Plädoyer zum Verzicht auf psychogenetische Erklärungsversuche von homosexuellen, heterosexuellen und anderen Orientierungen

    Directory of Open Access Journals (Sweden)

    Ralf Binswanger

    2016-07-01

    Full Text Available Fritz Morgenthaler steht mit seinem Konzept der «Weichenstellungen » auf dem Boden von Freuds Postulat, wonach homosexuelle und heterosexuelle Orientierungen gleich erklärungsbedürftig sind. Allerdings können die «Weichenstellungen» weniger Hetero- oder Homosexualität per se erklären, sondern eher die verschiedenen Formen von Homo- und Heterosexualität in actu, wie sie in Fantasie und Verhalten gelebt werden. Mit Sexualität per se und Sexualität in actu sind zwei qualitativ verschiedene Gesichtspunkte benannt, unter denen Diskurse über manifeste und organisierte Sexualität sowie Perversionen mit Vorteil geführt werden. Dabei wird der Perversionsbegriff ausschliesslich der Sexualität in actu zugeordnet, welche als dialektische Einheit von sexuellen und nicht-sexuellen Funktionen aufgefasst wird. Pervers ist sexuelle Aktivität dann, wenn innerhalb dieser Einheit eine nicht-sexuelle Funktion die Priorität über die Triebbefriedigung hat. Sexualität per se bezeichnet Homosexualität, Heterosexualität, Fetischismus, Sadomasochismus, Pädophilie usw. als verschiedene erwachsene Sexualorganisationen – als hierarchische Organisation von Partialtrieben – auf «gleichberechtigter», entpathologisierter Ebene. Nachdem begründet wird, weshalb auch Judith Le Soldat den Grund zur Homosexualität per se anscheinend nicht gefunden hat und alle bisherigen psychogenetischen Herleitungen der verschiedenen erwachsenen Sexualorganisationen dieses Ziel verfehlen, empfiehlt sich ein grundsätzlicher Verzicht auf solche Erklärungsversuche – so wie es für die Heterosexualität per se meistens gehandhabt wird. Dagegen kann auf den u. a. von Robert Stoller verwendeten Begriff imprinting oder Prägung zurückgegriffen werden, welchen die Zürcher Analytiker Harold Lincke und Werner Fessler von jeglichem Biologismusverdacht befreit haben. Zum Schluss wird hervorgehoben, wie sehr Morgenthaler und Le Soldat mit ihrer Suche nach dem Grund zur

  14. Fourth report by the Federal German Government to the Bundestag on measures for the protection of the ozone layer; 4. Bericht der Bundesregierung an den Deutschen Bundestag ueber Massnahmen zum Schutz der Ozonschicht

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-07-01

    This report, which relates the situation as of July 1997, again confirms the internationally leading role of the Federal German Republic in the phase-out of CFCs. No country has realised a more comprehensive concept for the phase-out of substances that deplete the ozone layer. Combining statutory and voluntary measures has proved a path-breaking approach. One of the most important driving forces in the CFC phase-out were the restrictions of use imposed by the Ordinance on the Prohibition of CFCs and Halon. (orig./SR) [Deutsch] Dieser Bericht - mit Stand vom Juli 1997 - bestaetigt erneut die internationale Fuehrungsrolle der Bundesrepublik Deutschland beim FCKW-Ausstieg. In keinem anderen Staaat wurde ein umfassenderes Konzept zum Ausstieg aus den ozonabbauenden Stoffen realisiert. Als wegweisend hat sich dabei die Verknuepfung ordnungsrechtlicher und freiwilliger Massnahem erwiesen. Insbesondere von den Verwendungsbeschraenkungen der FCKW-Halon-Verbots-Verordnung gingen wichtige Impulse beim FCKW-Ausstieg aus. (orig./SR)

  15. Examination of the somatostatin receptor status in non-medullary thyroid cancer; Untersuchungen zum Somatostatinrezeptor-Status bei nicht-medullaeren Schilddruesenkarzinomen

    Energy Technology Data Exchange (ETDEWEB)

    Goerges, R.; Brandt-Mainz, K.; Bockisch, A. [Essen Univ. (Gesamthochschule) (Germany). Klinik und Poliklinik fuer Nuklearmedizin; Kahaly, G. [Mainz Univ. (Germany). Klinik und Poliklinik fuer Medizin - Endokrinologie und Stoffwechselerkrankungen; Mueller-Brand, J.; Maecke, H. [Kantonsspital Basel (Switzerland). Inst. fuer Nuklearmedizin; Walgenbach, S. [Mainz Univ. (Germany). Klinik und Poliklinik fuer Allgemein- und Abdominalchirurgie; Bruns, C. [Praeklinische Forschung Novartis, Basel (Switzerland); Andreas, J. [Universitaetsklinik Mainz (Germany). Klinik und Poliklinik fuer Nuklearmedizin

    1999-06-01

    -medullaeren Schilddruesenkarzinomen nachgewiesen. In der vorliegenden Studie wird der Somatostatinrezeptor-Status bei dieser Tumorentitaet in einem groesseren Patientenkollektiv untersucht. Patienten und Methoden: Wir vergleichen 131-Iod- mit 111-In-Pentetreotide-Szintigraphien bei 24 Patienten mit metastasiertem, nicht-medullaeren Schilddruesenkarzinom. Die Befunde wurden mit anderen bildgebenden Verfahren korreliert. Zusaetzlich erfolgten Rezeptor-Autoradiographien bei einem Patienten, eine Octreotide-Behandlung bei einem anderen und die Verabreichung von 90-Y- sowie 111-In-DOTATOC bei zwei weiteren Patienten. Ergebnisse: Bei 8/15 Patienten mit papillaerem oder follikulaerem Schilddruesenkarzinom erwies sich 111-In-Pentetreotide dem 131-I- als unterlegen, bei 1/15 als gleichwertig und bei 6/15 als ueberlegen. Bei 8/9 Patienten mit onkozytaerem Schilddruesenkarzinom zeigten die Metastasen eine 111-In-Pentetreotide-Akkumulation unterschiedlicher Intensitaet, waehrend die 131-I-Szintigraphien hier bis auf eine Ausnahme negativ waren. Im Vergleich mit 201-Tl oder 99m-Tc-Sestamibi erwies sich 111-In-Pentetreotide als gleichwertig oder ueberlegen, aber im Vergleich zum 18-F-FDG-PET zumeist als unterlegen. Die Befunde der 111-In-Pentetreotide-Szintigraphie korrelierten gut mit der Rezeptor-Autoradiographie und der DOTATOC-Akkumulation, nicht dagegen mit dem Behandlungseffekt von `kaltem` Octreotide auf die Schilddruesenkarzinom-Metastasen. Schlussfolgerungen: Diverse Metastasen papillaerer und follikulaerer Schilddruesenkarzinome und die Mehrzahl der onkozytaeren Schilddruesenkarzinom-Metastasen koennen Somatostatin-Rezeptoren exprimieren. Insbesondere beim onkozytaeren Schilddruesenkarzinom beziehungsweise bei nicht verfuegbarem PET erweist sich die 111-In-Pentetreotide-Szintigraphie als vielversprechende Methode zur Metastasenlokalisation; sie konnte ferner von Nutzen sein bei der Selektion moeglicher Kandidaten fuer eine Therapie mit {beta}-Strahler-markierten Somatostatinanaloga, wenn diese fuer die

  16. Neurocognition and PET: strategies for data analysis in activation studies on working memory; Neurokognition und PET: datenanalytische Strategien bei Aktivierungsstudien zum Arbeitsgedaechtnis

    Energy Technology Data Exchange (ETDEWEB)

    Hautzel, H.; Mottaghy, F.M.; Schmidt, D.; Mueller, H.-W.; Krause, B. J. [Klinik fuer Nuklearmedizin (KME), Forschungszentrum Juelich (Germany); Nuklearmedizinische Klinik, Heinrich-Heine-Universitaet Duesseldorf (Germany)

    2003-10-01

    Verwendung eines verbalen n-zurueck-Arbeitsgedaechtnis-Paradigmas (n von 0 bis 3) werden kognitive Subtraktionsanalysen als Basisauswertung, parametrische und Kovarianz-basierte Analysen vorgestellt. Letztere wurden unter Anwendung einer externen Kovariante (individuelle Rate der korrekten Antworten), mittels regionaler Interkorrelationen und als Netzwerkanalyse mit Hilfe struktureller Gleichungssysteme zur Modellierung der effektiven Konnektivitaet zwischen den beteiligten Hirnregionen durchgefuehrt. Ergebnisse: Die Subtraktionsanalysen stellten eine zunehmende Involvierung eines fronto-parientalen Netzwerkes unter Einschluss des anterioren cingulaeren Kortex und Kleinhirnanteilen dar. Die parametrische Analyse wie einen linear mit der Aufgabenschwierigkeit ansteigenden rCBF beidseits praefrontal, inferior parietal unter Einschluss des Praecuneus, im prae-supplementaer-motorischen Kortex links und im anterior cingulaeren Kortex nach. Die Korrelationsanalyse mit Nutzung einer externen Kovarianten demonstrierte von dieser negativ abhaengige rCBF-Veraenderungen beidseits inferior parietal und im Praecuneus, bilateral praefrontal und im anterior cingulaeren Kortex. In der Netzwerkanalyse zur Beschreibung der effektiven Konnektivitaet wurden vorwiegend von okzipital nach frontal gerichtete, links-hemisphaerisch dominante Interaktionen nachgewiesen. Schlussfolgerung: Die vorgestellten datenanalytischen Vorgehensweisen tragen in ihrer Gesamtheit zum umfassenden Verstaendnis kognitiver Prozesse und einzelner Teilaspekte bei. (orig.)

  17. Verfahren zum Elektrodialysieren von Fluessigkeiten

    OpenAIRE

    Boergardts, P.

    1998-01-01

    This new method is used for the electrodialysis of fluids, accompanied by water electrolysis. Fluid containing a salt undergoes monopolar electrodialysis. Concentrate flowing from this stage is then subjected to bipolar electrodialysis. A novel feature of this process is that the concentrate stream undergoing bipolar electrodialysis, is mixed with fluid which has been reduced in concentration by bipolar electrodialysis, i.e. resultant dilutate. Also claimed is the equipment to carry out the p...

  18. Zum Interview mit Arthur Schnitzler

    DEFF Research Database (Denmark)

    Pinkert, Ernst-Ullrich

    2015-01-01

    Kommentar til et interview med Schnitzler, som dagbladet Politiken publicerede i 1923 og som E.U.Pinkert oversatte til tysk. Oversættelsen udkom den 28.11.2015 i Frankfurter Allgemeine Zeitung med titlen "Eine Gefahr für die Jugend?"...

  19. Vom Nachhaltigkeitsdiskurs zum hochschuldidaktischen Kriteriensatz

    Directory of Open Access Journals (Sweden)

    Ulrike Greb

    2009-08-01

    Full Text Available Als regulative Idee impliziert die „Nachhaltigkeitsidee“ eine Reihe geisteswissenschaftlicher Theoreme. Sie gilt daher als überkomplex und konnte bislang hochschuldidaktisch nicht systematisch transformiert wurden. Zur Rede stehen hier begriffliche Großprojekte wie Gerechtigkeit, Verantwortung, Partizipation, Retinität oder Globalität und Interkulturalität, die als Kristallisationspunkte der Nachhaltigkeitsidee die Grundlagentexte, Positionspapiere und Programme durchziehen. Im Anschluss an die heuristische Studie Globalität und Interkulturalität als integrale Bestandteile beruflicher Bildung für eine nachhaltige Entwicklung (GInE, www.ibw.uni-hamburg.de/GInE wurde ein didaktisches Strukturgitter entworfen, das exemplarische Problemlagen und Dilemmata benennt, so wie Reflexionskategorien für die Hochschuldidaktik in der beruflichen Lehrerbildung zur Diskussion stellt.As a regulative concept, the idea of sustainability implies a number of theorems in the field of humanities. It is regarded as supercomplex and, thus, could not yet be systematically transformed in university didactics. Large scale conceptual terms such as justice, responsibility, participation, retinity, globality, and interculturality are at the core of the discussion – terms which run through basic texts, policy papers, and programmes as focal points of the idea of sustainability. With respect to the heuristic study Globality and Interculturality as Integral Elements of a Professional Education for a Sustainable Development (GInE, www.ibw.uni-hamburg.de/GInE, a didactic framework was designed which not only denotes exemplary problems and dilemmata but also puts up categories of reflection for a university didactics aiming at a professional teacher training.

  20. Sammelrezension: Neue Publikationen zum Horrorfilm

    OpenAIRE

    Stiasny, Philipp

    2005-01-01

    Reynold Humphries: The American Horror Film. An IntroductionPeter Hutchings: The Horror FilmJoseph Maddrey: Nightmares in Red, White and Blue. The Evolution of the American Horror FilmBarry Keith Grant, Christopher Sharret (Hg.): Planks of Reason. Essays on the Horror Film

  1. Ingo Schwarz zum 65. Geburtstag

    Directory of Open Access Journals (Sweden)

    Die Mitarbeiterinnen und Mitarbeiter der Alexander-von-Humboldt-Forschungsstelle

    2014-12-01

    Full Text Available Am 17. Dezember 2014 feiert der langjährige Arbeitsstellenleiter der Alexander-von-Humboldt-Forschungsstelle der Berlin-Brandenburgischen Akademie der Wissenschaften Ingo Schwarz seinen 65. Geburtstag. Aus diesem Anlass haben Freunde, Kollegen und Wegbegleiter Beiträge zusammengetragen, die die Bandbreite der jahrzehntelangen Forschungen Ingo Schwarz’ zu Alexander von Humboldt widerspiegeln.

  2. Zum Typus des ossetischen Kasussystems

    Directory of Open Access Journals (Sweden)

    Karl Horst Schmidt

    1993-12-01

    Full Text Available Altiranisch ist das altindogermanische Kasussystem weitgehend erhalten geblieben; im Singular (Sg. der avestischen (av. Nominaldeklination werden noch die acht Kasus Nominativ, Akkusativ, Genetiv, Dativ, Ablativ, Lokativ, Instrumenta! und Vokativ unterschieden; z.B. o-Stamm ahura- 'Gott': ahuri5, ahuram, ahurahyii., ahurai usw.; im Altpersischen ist dieses System durch den Zusammenfall von Dativ und Genetiv um einen Kasus reduziert worden. Auch in der typologischen Anordnung der Morpheme hat das Altiranische den aus dem Indogermanischen (idg. ererbten Status einer flektierenden Sprache bewahrt. Es ist charakterisiert durch Merkmale wie die Differenzierung von rrwnothematischer und heteroklitischer Deklination2 (vgl. Stamm vs. r/n-Stamm: av. ahura- vs. hvarǝ 'Sonne', Genetiv xvǝng, Caland-Wackernagelschen Suffixwechsel (av. dǝrǝz-ra- 'fest' : dǝrǝz-i-ra0a- 'festen Wagen habend' 3, Ablaut (av. dātā 'Geber', Genetiv dāvro, Formvariation4 (aav. Genetiv Sg. ahura-hyā vs. dāvr-ō oder Autonomie des Wortes.

  3. Albert Keding zum 65. Geburtstag

    OpenAIRE

    Pietsch, Torsten

    2014-01-01

    Herr Albert Keding beging am 2. März 1997 seinen 65. Geburtstag. Er wurde in Schreitlacken, Kreis Samland (Ostpreußen) geboren, wo seine Eltern einen Landwirtschaftsbetrieb besaßen. Dort wurde das Interesse des Jubilars zur Landwirtschaft geweckt. So besuchte Albert Keding später in Dassow-Lütgenhof (Mecklenburg) eine Fachschule für Landwirtschaft, wo er seine Vorliebe für Gräser entdeckte. An diese Ausbildung schloss sich ein Landwirtschaftsstudium an der Martin-Luther-Universität in Halle a...

  4. VERFAHREN ZUM VERBINDEN METALLISCHER SCHAUMWERKSTOFFE

    OpenAIRE

    Gruetzner, H.; Horn, H.

    2003-01-01

    WO 200218089 A UPAB: 20020528 NOVELTY - Joining a first object (1) made of a metallic foam material to a second metallic object (2) in a connecting region (7) comprises moving a rotating friction stud (6) between the objects in the connecting region in a friction fit so that the objects are heated and plasticized as a result of friction and pressure exerted on the objects by the stud and then welding the two objects together. DETAILED DESCRIPTION - Preferred Features: The friction stud is rot...

  5. [Carl Schirren als Gelehrter im Spannungsfeld von Wissenschaft und politischer Publizistik. 13 Beiträge zum 22. Baltischen Seminar 2010 ; Carl Schirren. Vorlesungen über livländische Geschichte. Nachschrift von Johannes Lossius] / Karsten Brügge

    Index Scriptorium Estoniae

    Brüggemann, Karsten, 1965-

    2015-01-01

    Arvustus: Carl Schirren als Gelehrter im Spannungsfeld von Wissenschaft und politischer Publizistik. 13 Beiträge zum 22. Baltischen Seminar 2010 (Baltische Seminare, 20). Hrsg. von Michael Garleff. Verlag Carl-Schirren-Gesellschaft. Lüneburg 2013; Carl Schirren. Vorlesungen über livländische Geschichte. Nachschrift von Johannes Lossius (Baltische Seminare, 20-1). Hrsg. von Carl Schirren und Wilhelm Lenz. Verlag Carl-Schirren-Gesellschaft. Lüneburg 2013

  6. Auf dem Weg zum Web 3.0: Taxonomien und Ontologien für die medizinische Ausbildung - eine systematische Literaturrecherche [Towards Web 3.0: Taxonomies and ontologies for medical education - a systematic review

    Directory of Open Access Journals (Sweden)

    Blaum, Wolf E.

    2013-02-01

    Curriculumsentwicklung und –kartierung als auch zur Orientierung innerhalb der seit Jahren zunehmenden Fülle von Lernressourcen in der medizinischen Ausbildung stellt das semantische Web („Web 3.0“ ein niedrigschwelliges, effektives Hilfsmittel dar, das es ermöglicht, inhaltlich verwandte Elemente über Systemgrenzen hinweg zu identifizieren. Voraussetzung dafür ist der Einsatz eines geeigneten strukturierten Vokabulars zur maschinenlesbaren, inhaltlichen Beschreibung von Objekten, um die bisher notwendige manuelle Verknüpfung durch eine automatisch erzeugte, inhaltsbasierte bzw. semantische Verknüpfung zu ersetzen. Ziel dieser Arbeit ist es, existierende Taxonomien und Ontologien zur Annotation medizinischer Lernressourcen und -inhalte zusammenzustellen und anhand ausgewählter Kriterien zu vergleichen sowie auf ihre Eignung zum Einsatz im eingangs beschriebenen Kontext zu überprüfen.Methoden: Anhand einer systematischen Literaturrecherche wurden existierende Taxonomien und Ontologien zur Beschreibung medizinischer Lernressourcen identifiziert. Für jedes so identifizierte strukturierte Vokabular wurden mittels Websuche und/oder Kontakt zu den Herausgebern Thema, Struktur, Sprache, Umfang, Wartung und Technik der Taxonomie/Ontologie ermittelt und deren Eignung für den Einsatz im semantischen Web überprüft.Ergebnisse: In 20 identifizierten Publikationen wurden 14 strukturierte Vokabulare identifiziert, die sich in Sprache, Umfang, Aktualität und Wartung zum Teil sehr stark unterschieden. Keines der identifizierten Vokabulare erfüllte die erforderlichen Kriterien zur inhaltlichen Beschreibung medizinischer Ausbildungsinhalte und Lernressourcen im deutschsprachigen Raum.Diskussion: Auf dem Weg zum Web 3.0 stellen Auswahl und Einsatz eines geeigneten, deutschsprachigen Vokabulars zur maschinenlesbaren, inhaltlichen Beschreibung von Objekten ein relevantes Problem dar. Mögliche Lösungsansätze umfassen die Neuentwicklung, die Übersetzung und/ oder die Kombination

  7. A novel experimental approach for the determination of the photooxidative decay of semivolatile pesticides and POPs adsorbed on single levitated particles; Aufbau eines Messverfahrens zum photo-oxidativen Abbau von semivolatilen Pflanzenschutzmitteln und POPs an levitierten Einzelpartikeln

    Energy Technology Data Exchange (ETDEWEB)

    Ruehl, E.

    2002-08-01

    gespeicherte Mikro- und Nanopartikel, auf deren Oberflaeche die zu untersuchenden Substanzen in Monolagen adsorbiert sind. Die beruehrungslose Speicherung der Partikel gelingt in einer elektrodynamischen Falle, in der die Temperatur, Luftdruck, Luftfeuchte und die Zusammensetzung der Atmosphaere kontrolliert einstellbar ist. Die Partikel werden reaktiven Gasen, wie OH-Radikalen, ausgesetzt. Die induzierten Veraenderungen der adsorbierten Substanzen werden zeitaufgeloest mit Hilfe der Raman-Spektroskopie verfolgt, so dass chemische Prozesse, die entstehenden Reaktionsprodukte sowie auch Abdampfverluste von der Partikeloberflaeche quantifiziert werden koennen. Alternativ kann auch die Fourier-Transform-Infrarot-Spektroskopie zum spezifischen Nachweis genutzt werden. Mit den Experimenten lassen sich reaktionskinetische Daten zum indirekten Photoabbau schwerfluechtiger Substanzen als Funktion der Umgebungsbedingungen ableiten. Im Zuge des Vorhabens wurden die notwendigen experimentellen Voraussetzungen geschaffen und die hierfuer konstruierten Komponenten anhand von Testsystemen im Hinblick auf ihre Einsetzbarkeit charakterisiert. Erste Experimente zur Reaktionskinetik belegen die Funktionstuechtigkeit des neuen Verfahrens. (orig.)

  8. Investigations on radionuclide release and on the corrosion behaviour of spent fuels from research reactors under disposal conditions. Final report; Untersuchungen zur Radionuklidfreisetzung und zum Korrosionsverhalten von bestrahltem Kernbrennstoff aus Forschungsreaktoren unter Endlagerbeedingungen. Abschlussbericht

    Energy Technology Data Exchange (ETDEWEB)

    Bruecher, H.; Curtius, H.; Fachinger, J.; Kaiser, G.; Mazeina, L.; Nau, K.

    2003-12-01

    From the present report 'Untersuchungen zur Radionuklidfreisetzung und zum Korrosionsverhalten von bestrahltem Kernbrennstoff aus Forschungsreaktoren unter Endlagerbedingungen' with the code number FKZ 9108 carried out in the time periode 01.06.1998 till 30.11.2001 the following results can be withdrawn: U/Al-RR-fuel elements corroded slowly in granite water (Grimsel-West) at 90 C under anaerobic conditions. For a complete dissolution of the fuel element a time period of 10{sup 3} years is assumed according to present conservative results. In salt brines, especially in magnesium chloride rich brines the corrosion rate is high. Addition of GGG40 (basic material of the fuel element container with iron as main element) had an acceleration effect. A complete dissolution of the fuel is achieved within a couple of months. Under aerobic and under anaerobic conditions the bulk of released radionuclides were fixed by the corrosion products formed (secondary phases). The actinides were mobilised by variation of the ionic strength of the leaching solution. This process can be explained by phase conversion reactions within the secondary phases. Secondary phases formed by corrosion of a non-irradiated U/Al-RR-fuel element, were analysed and hydrotalcites were identified as phase components. This result justifies the assumption, that hydrotalcites are components of the corrosion products from irradiated fuels. To clarify the questions which bindings exist between radionuclides and secondary phases, sorption experiments were performed. The sorption experiments were performed in salt brines and in granite water using repository relevant radionuclides and minerals which are considered to represent thermodynamic final components of the secondary phases. Pu sorbed as cationic species quantitatively and the binding is covalent. In granite water the same behaviour was found for Am. (orig.) [German] Aus dem vorliegenden Bericht 'Untersuchungen zur Radionuklidfreisetzung

  9. Reduction of radiation dose by using digital luminescence radiography compared to conventional screen film system with grid cassette; Reduktion der Strahlendosis mittels Speicherfolienradiographie im Vergleich zum konventionellen Film-Folien-System mit Rasterkassette am Schaedelphantom

    Energy Technology Data Exchange (ETDEWEB)

    Heyne, J.P.; Merbold, H.; Neumann, R.; Freesmeyer, M.; Jonetz-Mentzel, L.; Kaiser, W.A. [Friedrich-Schiller-Univ. Jena, Inst. fuer Diagnostische und Interventionelle Radiologie (Germany); Sehner, J. [AGFA-Deutschland, Vertriebsgesellschaft (Germany)

    1999-07-01

    Purpose: How much can the radiation dose be reduced for skull radiography by using digital luminescence radiography (DLR) compared to a conventional screen film system with a grid cassette? Methods and Materials: A skull phantom (3M) was X-rayed in anterior-posterior orientation using both a conventional screen film system with grid cassette and DLR (ADC-70, Agfa). The tube current time product (mAs) was diminished gradually while keeping the voltage constant. The surface entrance dose was measured by a sensor of Dosimax (Wellhoefer). Five investigators evaluated the images by characteristic and critical features, spatial resolution and contrast. Results: The surface entrance dose at 73 kV/22 mAs was 0,432 mGy in conventional screen film system and 0,435 mGy in DLR. The images could be evaluated very well down to an average dose of 71% (0,308 mGy; SD 0,050); sufficient images were obtained down to an average dose of 31% (0,136 mGy; SD 0,065). The resolution of the line pairs were reduced down to a 2 levels depending on the investigator. Contrast was assessed as being very good to sufficient. The acceptance of the postprocessed images (MUSICA-software) was individually different and resultde in an improvement of the assessment of bone structures an contrast in higher dose ranges only. Conclusion: For the sufficient assessment of a possible fracture/of paranasal sinuses/of measurement the skull the dose can be reduced to at least 56% (31%; SD 14,9%)/40% (27%; SD 9,3%)/18% (14%; SD 4,4%). Digital radiography allows question-referred exposure parameters with clearly reduced dose, so e.g. for fracture exclusion 73 kV/12,5 mAs and to skull measurement 73 kV/4 mAs. (orig.) [Deutsch] Ziel: Wie weit kann unter Einsatz der rasterlosen Speicherfolienradiographie bei einer Schaedelaufnahme die Strahlendosis im Vergleich zum Film-Folien-System (FFS) mit Rasterkassette (RK) fragestellungsbezogen gesenkt werden? Material und Methode: Ein Schaedelphantom (3M) wurde konventionell

  10. Radiation protection in medical research. Licensing requirement for the use of radiation and advice for the application procedure; Strahlenschutz in der medizinischen Forschung. Genehmigungsbeduerftigkeit von Strahlenanwendungen und Hinweise zum Antragsverfahren

    Energy Technology Data Exchange (ETDEWEB)

    Minkov, V.; Klammer, H.; Brix, G. [Bundesamt fuer Strahlenschutz, Abteilung fuer medizinischen und beruflichen Strahlenschutz, Neuherberg (Germany)

    2017-07-15

    In Germany, persons who are to be exposed to radiation for medical research purposes are protected by a licensing requirement. However, there are considerable uncertainties on the part of the applicants as to whether licensing by the competent Federal Office for Radiation Protection is necessary, and regarding the choice of application procedure. The article provides explanatory notes and practical assistance for applicants and an outlook on the forthcoming new regulations concerning the law on radiation protection of persons in the field of medical research. Questions and typical mistakes in the application process were identified and evaluated. The qualified physicians involved in a study are responsible for deciding whether a license is required for the intended application of radiation. The decision can be guided by answering the key question whether the study participants would undergo the same exposures regarding type and extent if they had not taken part in the study. When physicians are still unsure about their decision, they can seek the advisory service provided by the professional medical societies. Certain groups of people are particularly protected through the prohibition or restriction of radiation exposure. A simplified licensing procedure is used for a proportion of diagnostic procedures involving radiation when all related requirements are met; otherwise, the regular licensing procedure should be used. The new radiation protection law, which will enter into force on the 31st of december 2018, provides a notification procedure in addition to deadlines for both the notification and the licensing procedures. In the article, the authors consider how eligible studies involving applications of radiation that are legally not admissible at present may be feasible in the future, while still ensuring a high protection level for study participants. (orig.) [German] Personen, bei denen Strahlenanwendungen zum Zweck der medizinischen Forschung durchgefuehrt

  11. Is tamoxifen associated with an increased risk for thromboembolic complications in patients undergoing microvascular breast reconstruction? [Ist die Einnahme von Tamoxifen zum Zeitpunkt der mikrovaskulären Brustrekonstruktion mit einer erhöhten Rate an thrombembolischen Komplikationen assoziiert?

    Directory of Open Access Journals (Sweden)

    Krämer, Robert

    2013-02-01

    des hormonrezeptorpen Brustkrebses postmenopausaler Frauen abgelöst. Tamoxifen ist mit einem ca. zweifach erhöhten Risiko für thrombembolische Komplikationen (tiefe Beinvenenthrombose, Lungenembolie assoziiert. Vor dem Hintergrund einer aktuellen und im Februar 2012 im Journal of Plastic and Reconstructive Surgery erschienenen retrospektiven Studie mit Nachweis einer erhöhten Komplikationsrate freier Lappentransplantate zur Brustrekonstruktion unter Tamoxifen-Einnahme haben wir unser Patientenkollektiv nach mikrochirurgischer Brustrekonstruktion retrospektiv auf Minor- und Major-Komplikationen einschließlich thrombembolischer Ereignisse insbesondere vor dem Hintergrund einer perioperativen Tamoxifeneinnahme untersucht. Eingeschlossen wurden insgesamt 29 Patientinnen nach mikrochirurgischer autologer Brustrekonstruktion. Es wurden mikrovaskuläre Lappenkomplikationen und Lappenverluste von Patientinnen ohne und mit Einnahme von Tamoxifen und Aromatasehemmern zum Zeitpunkt der mikrochirurgischen Brustrekonstruktion verglichen. 25 Patientinnen (86,2% erhielten eine DIEP-Lappenplastik und 4 (13,8% eine TRAM-Lappenplastik. Fernerhin verglichen wir die Rate allgemeiner thrombembolischer Ereignisse unter Berücksichtigung sonstiger Nebendiagnosen und Risikofaktoren. Von insgesamt 29 Patientinnen standen zum Zeitpunkt der mikrovaskulären Brustrekonstruktion 3 unter einer Aromatasehemmer-Therapie und 5 unter einer Tamoxifen-Therapie. Insgesamt traten in 11 Fällen (37,9% postoperative Komplikationen auf, in 5 Fällen handelte es sich hierbei um Major-Komplikationen (mit einem Lappenverlust und in um Minorkomplikationen. Unter Tamoxifeneinnahme kam es in einem Fall zu einer Minorkomplikation, und in einem anderen Fall zu einem thrombembolisch bedingten Lappenverlust. Insgesamt kam es postoperativ zu einem thrombembolischen Ereignis in Form einer Lungenembolie ohne Assoziation zur Tamoxifen-Therapie.Die Anzahl thrombembolischer Ereignisse stellten sich mit und ohne

  12. Environment-friendly building. Energy efficiency - thermal comfort - materials. Publication on the occasion of the 60th birthday of Gerd Hauser; Umweltbewusstes Bauen. Energieeffizienz - Behaglichkeit - Materialien. Festschrift zum 60. Geburtstag von Gerd Hauser

    Energy Technology Data Exchange (ETDEWEB)

    Maas, A. (ed.)

    2008-07-01

    In honour of the 60th birthday of Professor Gerd Hauser, ''father of the Energy Passport'' in this festival script 38 contributions are compiled in recognition of his work. These articles present the whole thematics of heat- and energy transfer in the building sector. The broad spectra is arranged into the sections energy efficiency, thermal comfort and materials. Constructive problems on sun protection, computer-simulated models of indoor climate, energetic sanitation of monuments taking into account preservative aspects, problems of sound emission from traffic as the constructional physical evaluation of materials in the building envelope. Furtheron the actual discussion on energy saving construction is reflected due to perspective and strategies of climate policy in Germany. The spectrum of the contribution from research and practice shows clearly, that construction physics has developed since last decades from a niche position to a comprehensive branche. (orig./GL) [German] Aus Anlass des 60. Geburtstages von Professor Gerd Hauser, dem Vater des Energiepasses, sind in dieser Festschrift in Anerkennung seines Werkes 38 Beitraege zusammengestellt. Diese stellen die gesamte Thematik der Waerme- und Energieuebertragung im Gebaeudebereich vor. Das breite Spektrum ist in die Abschnitte Energieeffizienz, Behaglichkeit und Materialien gegliedert. Behandelt werden beispielsweise baukonstruktive Fragestellungen beim Sonnenschutz, Computer simulierte Raumklimamodelle, denkmalpflegerische Aspekte bei der energetischen Sanierung, Probleme der Schalluebertragung im Verkehr sowie die bauphysikalische Bewertung von Materialien der Gebaeudehuelle. Darueber hinaus wird die aktuelle Diskussion zum Energiesparenden Bauen im Hinblick auf die Perspektiven und Strategien der Klimapolitik in Deutschland wiedergegeben. Die Bandbreite der Beitraege aus Forschung und Praxis zeigen anschaulich, dass sich die Bauphysik in den letzten Jahrzehnten aus einer

  13. The Eckert number phenomenon - experimental investigations of heat transfer on moving walls, e.g. rotating cylinders; Das Eckert-Zahl-Phaenomen - Experimentelle Untersuchungen zum Waermeuebergang an einer bewegten Wand am Modellfall eines rotierenden Zylinders

    Energy Technology Data Exchange (ETDEWEB)

    Gschwendtner, M.

    2000-07-01

    The Eckert number phenomenon - theoretically investigated by Geropp in 1969 - describes a turnover in heat transfer at a moving wall at an Eckert number EC=1. This report is the first to confirm the Eckert number phenomenon experimentally. Heat transfer on a heated, vertically rotating cylinder in a crossflow was investigated at extreme rotational speeds, i.e. in the range where the predicted phenomenon will occur. A heating concept had to be developed which allowed an input of heating power independent of rotational speed and which therefore had to be contact-free. The complex thermofluiddynamic processes in the boundary layer around the rotating cylinder were investigated and measured using predominantly optical measuring techniques. The results show that the temperature difference between the wall and the surrounding fluid had a significant effect on the predicted turnover of heat transfer at the wall. Moreover, maximum heat transfer occurs at an Eckert number Ec=0.3, which is of great importance for the cooling of hot surfaces in an airstream. [German] Das Eckert-Zahl-Phaenomen - von Geropp 1969 theoretisch untersucht - beschreibt den Umschlag des Waermeueberganges an einer bewegten Wand bei einer Eckert-ZahlEc{approx}1. In der vorliegenden Arbeit wird das Eckert-Zahl-Phaenomen zum ersten Mal experimentell bestaetigt. Dazu wurde der Waermeuebergang am Modellfall eines queransgestroemten, beheizten, vertikalrotierenden Zylinders untersucht. Aufgrund der fuer die Experimente notwendigen extremen Drehzahlen musste fuer die Zylinderheizung ein Konzept entwickelt werden, das eine beruehrungsfreie und damit drehzahlunabhaengige Leistungseinspeisung erlaubte. Mit vorwiegend optischen Messmethoden wurden die komplexen thermofluiddynamischen Vorgaenge in der Grenzschicht um den rotierenden Zylinder untersucht und vermessen. Die Ergebnisse zeigen u.a., dass die Temperaturdifferenz zwischen Wand und Umgebung von entscheidender Bedeutung fuer die Richtungsumkehr des

  14. Newly developed active braze powders based on commercial nickel brazes using zirconium as active element for joining ceramic to metal; Entwicklung von neuen Aktivlotpulvern auf Basis kommerzieller Nickellote mit Zirkon als aktivelement zum Fuegen von Keramik-Metall-Verbunden

    Energy Technology Data Exchange (ETDEWEB)

    Bobzin, K.; Schlaefer, T.; Kopp, N.; Schlegel, A. [Institut fuer Oberflaechentechnik der RWTH Aachen (Germany)

    2010-06-15

    10 weight-%. For the characterisation, the melting range of all experimental brazing filler metals has been determined by thermoanalytical methods and the ones, which have been manufactured by powder metallurgy, have been investigated by means of an x-ray diffraction analysis and a morphological analysis of the powder particles. The suitability of the experimental brazing filler metals for the active brazing has been probed in wetting tests on alumina in high-vacuum brazing trials and examined metallographically. (Abstract Copyright [2010], Wiley Periodicals, Inc.) [German] Die gestiegenen Anforderungen an hochbeanspruchte Bauteilkomponenten hinsichtlich Bestaendigkeit gegen thermische, oxidierende und korrosive Beanspruchungen, Haerte sowie Verschleissbestaendigkeit praedestinieren den Einsatz von ingenieurkeramischen Werkstoffen. Dem gegenueber stehen Eigenschaften wie hohe Sproedigkeit, zum Teil geringe Thermoschockbestaendigkeit, schwierige Bearbeitbarkeit und daraus resultierende Einschraenkungen bei der konstruktiven Gestaltung. Hybride Werkstoffkonzepte als Kombination ingenieurkeramischer Werkstoffe mit metallischen Konstruktionswerkstoffen koennen, sofern dazu geeignete und leistungsfaehige Fuegetechniken verfuegbar sind, technologisch interessante Loesungen darstellen. Das Aktivloeten als eine in der Werkstoffauswahl sehr flexible Fuegetechnologie bietet sich fuer die Erschliessung neuer und innovativer Anwendungen wie beispielsweise der Hochtemperatur-Brennstoffzellen-Technik an. Derzeit in der industriellen Praxis eingesetzte Aktivlote auf Silber/Kupfer-, Kupfer- und Silberbasis weisen bei etwa 500 C einen deutlichen Abfall bezueglich ihrer mechanischen Festigkeit auf. Gold- oder palladiumhaltige Aktivlote mit diesbezueglich besseren Eigenschaften finden aufgrund ihres hohen Preises aeusserst selten Verwendung. Die hier vorgestellten Untersuchungen haben das Ziel, neue Aktivlotlegierungen bei vertretbaren Rohstoffkosten fuer Einsatztemperaturen oberhalb

  15. SPECT/CT for staging and treatment monitoring in oncology. Applications in differentiated thyroid cancer and liver tumors; SPECT/CT zum initialen Staging und Therapiemonitoring in der Onkologie. Indikationen beim differenzierten Schilddruesenkarzinom und bei Lebertumoren

    Energy Technology Data Exchange (ETDEWEB)

    Weber, K.; Berger, F.; Reiser, M.F. [Klinikum der Ludwig-Maximilians-Universitaet Muenchen, Campus Innenstadt, Institut fuer Klinische Radiologie, Muenchen (Germany); Mustafa, M.; Bartenstein, P.; Haug, A. [Klinikum der Ludwig-Maximilians-Universitaet Muenchen, Campus Grosshadern, Klinik und Poliklinik fuer Nuklearmedizin, Muenchen (Germany)

    2012-07-15

    and SPECT/CT provides more accurate imaging of the arterial supply of the liver and of potential outflows of micro-spheres into other organs. SPECT/CT allows evaluation and quantification of the uptake of liver tumors. Improved postablative staging in patients with differentiated thyroid cancer by SPECT/CT in comparison to radioiodine whole body scans can be achieved. Improved planning and monitoring of SIRT therapies utilizing SPECT/CT leads to optimized therapeutic doses within liver lesions. Integration of SPECT/CT into the clinical standard for postablative staging in patients with DTC is recommended as well as utilization of SPECT/CT during the planning process, for dose calculation and treatment monitoring of SIRT therapies. (orig.) [German] In den letzten Jahren hat die Hybridbildgebung mit Verbindung von funktioneller und morphologischer Information zur Diagnostik zahlreicher Erkrankungen zunehmend an Bedeutung gewonnen. Bei Patienten mit differenziertem Schilddruesenkarzinom (DTC) wird nach erfolgter Radiojodtherapie (RJT) ein planares Ganzkoerperszintigramm zum Staging durchgefuehrt. Die diagnostische Genauigkeit dieser szintigraphischen Methode ist jedoch aufgrund limitierter raeumlicher Aufloesung begrenzt. Die Radioembolisation von mit {sup 90}Yttrium beladenen Mikrosphaeren (selektive interne Radiotherapie, SIRT) ermoeglicht eine wenig invasive Therapie primaerer und sekundaerer Lebertumoren. Zur Vermeidung von Nebenwirkungen der Mikrosphaeren durch einen Abstrom in Darm, Magen und Lunge muss vor Therapiebeginn eine Darstellung des durch die leberversorgenden Arterien versorgten Gebiets mittels {sup 99m}Tc-MAA ({sup 99m}Technetium-makroaggregiertes Albumin) und einer Szintigraphie erfolgen. Auch hier limitiert die begrenzte morphologische Information der Szintigraphie das Therapiemonitoring. {sup 131}Jod-Ganzkoerperszintigramm zum Nachweis einer erfolgreichen Ablation und Staging ca. 3-4 Tage postablativ bei Patienten mit DTC. Ueberwachung des

  16. Rationality and contradictions in the competition for concessions. A (second) contribution to the Joint Practical Guide of the German Federal Cartel Office and Federal Network Agency for the allocation of electricity and gas concession tolerated and to change the concessionaire of 21 May 2015; Rationalitaet und Widersprueche im Wettbewerb um Konzessionen. Ein (zweiter) Beitrag zum Gemeinsamen Leitfaden von Bundeskartellamt und Bundesnetzagentur zur Vergabe von Strom- und Gaskonzessionsvertraegen und zum Wechsel des Konzessionsnehmers vom 21. Mai 2015

    Energy Technology Data Exchange (ETDEWEB)

    Steinbeck, David; Templin, Wolf [Boos Hummel und Wegerich Rechtsanwaelte, Berlin (Germany)

    2015-08-15

    This article follows to an essay in the ZNER of 2011 (S. 121 et seq.) for the first Joint Practical Guide of the Federal Network Agency (BNetzA) and Federal Cartel Office (FCO) from the year 2010, in which the authors had attested authorities a good ''step towards to more competition ''. In the essay is examined and shown that the Joint practical guide from the year 2010 this target could meet and what effect the now in its second edition newly revised guidelines on competition to distribution networks may have. The revision of the guidelines will be given to municipalities further action assistance to the hand, but - with few exceptions - only reproduces the jurisprudence of the staked legal framework. One proposed solution for the more diverse existing problems remains undone, whereas new problem areas are put up in several places. Nevertheless, the will of the authorities is to recognize, to avoid legal problems in the concession process and net acquisitions from the outset. [German] Dieser Beitrag knuepft an einen Aufsatz in der ZNER 2011 (S. 121 ff.) zum ersten Gemeinsamen Leitfaden von Bundesnetzagentur (BNetzA) und Bundeskartellamt (BKartA) aus dem Jahre 2010 an, in dem die Autoren den Behoerden einen richtigen ''Schritt hin zu mehr Wettbewerb'' attestiert hatten. In der Abhandlung wird untersucht und dargestellt, ob der Gemeinsame Leitfaden aus dem Jahr 2010 diesem Ziel gerecht werden konnte und welche Auswirkungen der nunmehr in der zweiten Auflage neu ueberarbeitete Leitfaden auf den Wettbewerb um Verteilnetze haben kann. Die Ueberarbeitung des Leitfadens wird den Kommunen eine weitere Handlungshilfe an die Hand gegeben, die aber - bis auf wenige Ausnahmen - den durch die Rechtsprechung abgesteckten Rechtsrahmen nur wiedergibt. Ein Loesungsvorschlag fuer die noch vielfaeltig bestehenden Probleme unterbleibt, wohingegen an mehreren Stellen neue Problemfelder aufgemacht werden. Gleichwohl ist der Wille der Behoerden

  17. Der rudolphinische Garten des Schlosses in Brandeis an der Elbe

    Czech Academy of Sciences Publication Activity Database

    Dobalová, Sylva

    -, č. 10 (2010), s. 48-67 ISSN 1213-5372 Institutional research plan: CEZ:AV0Z80330511 Keywords : Renaissance gardens * emperor Rudolf II * game ball house * tulips Subject RIV: AL - Art, Architecture, Cultural Heritage

  18. Fish community in the chronically polluted middle Elbe River

    Czech Academy of Sciences Publication Activity Database

    Jurajda, Pavel; Janáč, Michal; Valová, Zdenka; Streck, G.

    2010-01-01

    Roč. 59, č. 2 (2010), s. 157-168 ISSN 0139-7893 R&D Projects: GA MŠk LC522 Grant - others:6th Framework Programme EC(XE) MODELKEY (511237-GOCE) Institutional research plan: CEZ:AV0Z60930519 Keywords : fish * bioindicators * pollution * channelization Subject RIV: EG - Zoology Impact factor: 0.548, year: 2010 http://www.ivb.cz/folia/59/2/9_ms_1491_jurajda.pdf

  19. A Socio-hydrological Flood Model for the Elbe

    Science.gov (United States)

    Barendrecht, M.; Viglione, A.; Kreibich, H.; Vorogushyn, S.; Merz, B.; Bloeschl, G.

    2017-12-01

    Long-term feedbacks between humans and floods may lead to complex phenomena such as coping strategies, levee effects, call effects, adaptation effects, and poverty traps. Dynamic coupled human-flood models are a promising tool to represent such phenomena and the feedbacks leading to them. These socio-hydrological models may play an important role in integrated flood risk management when they are applied to real world case studies. They can help develop hypotheses about the phenomena that have been observed in the case study of interest, by describing the interactions between the social and hydrological variables as well as other relevant variables, such as economic, environmental, political or technical, that play a role in the system. We discuss the case of Dresden where the 2002 flood, which was preceded by a period without floods but was less severe, resulted in a higher damage than the 2013 flood, which was preceded by the 2002 flood and a couple of less severe floods. The lower damage in 2013 may be explained by the fact that society has become aware of the flood risk and has adapted to it. Developing and applying a socio-hydrological flood model to the case of Dresden can help discover whether it is possible that the lower damage is caused by an adaptation effect, or if there are other feedbacks that can explain the observed phenomenon.

  20. Instrumentalisation of the electronic learning booklet ELB: The case ...

    African Journals Online (AJOL)

    pc

    2018-03-05

    Mar 5, 2018 ... ]Laboratory of Physical Chemistry of Materials, Ben M'sik Faculty of Sciences,. Hassan II ... Vocational Training, Higher Education and Scientific Research, Morocco. 3Groupe .... knowledge, profile, specialty or experience.

  1. Modified SRF Photoinjector for the ELBE at HZDR

    CERN Document Server

    Murcek, P; Buettig, H; Michel, P; Teichert, J; Xiang, R; Kneisel, P

    2012-01-01

    The superconducting radio frequency photoinjector (SRF photoinjector) with Cs2Te cathode has been successfully operated under the collaboration of HZB, DESY, HZDR, and MBI.[1] In order to improve the gradient of the gun cavity and the beam quality, a new modified SRF gun (SRF-gun 2008) has been designed. The main updates of the new cavity design for the new photoinjector were publisched before. (ID THPPO022 on the SRF09 Berlin.) This cavity is being fabricated in Jefferson Lab. In this paper the new ideas of the further parts of the SRF-gun 2008 will be presented. The most important issue is the special design of half-cell and choke filter. The cathode cooler is also slightly changed, which simplifies the installation of the cathode cooler in the cavity. The next update is the separation of input and output of the liquid nitrogen supply, for the purpose of the stability of the nitrogen pressure as well as the better possibility of temperature measurement. Another key point is the implementation of the superco...

  2. ELB-trees - Efficient Lock-free B+trees

    DEFF Research Database (Denmark)

    Bonnichsen, Lars Frydendal; Karlsson, Sven; Probst, Christian W.

    2014-01-01

    As computer systems scale in the number of processors, data structures with good parallel performance become increasingly important. Lock-free data structures promise improved parallel performance at the expense of higher complexity and sequential execution time.We present ELBtrees, a new lock-fr...

  3. Research on the subject of air pollution and forest damage in the period from 1984 to 1995. Report on results; Forschung zum Schwerpunkt Luftverunreinigungen und Waldschaeden 1984-1995. Ergebnisbericht

    Energy Technology Data Exchange (ETDEWEB)

    Reuther, M.; Kirchner, M.; Roesel, K.; Weissgerber, K.

    1996-02-01

    , Luftchemie, Stoffeintrag ueber Physiologie und Biochemie der Baeume bis hin zu bodenkundlichen Untersuchungen einschliesslich Feinwurzeln und Mykorrhiza. Die Freilanduntersuchungen wurden an den interdisziplinaer bearbeiteten Forschungsstandorten der bayerischen Waldschadensforschung durchgefuehrt. Einen besonderen Arbeitsschwerpunkt stellte der alpine Forschungsstandort Wank dar. Laborarbeiten sowie Experimente unter kontrollierten Bedingungen der GSF-Expositionskammern traten ergaenzend hinzu. Auch wenn viele Fragen zum Verstaendnis der stofflichen Vorgaenge und Veraenderungen im Oekosystem Wald noch offen sind, lassen sich aus den Ergebnissen der Waldschadensforschung in einigen Teilbereichen weitgehend abschliessliche Aussagen treffen. Die Ergebnisse werden zusammenfassend dargestellt. (orig.)

  4. 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

  5. Habitus in the Classroom: the Relevance of Student Heterogeneity and Departmental Culture for Learner-Oriented Didactics in Teaching Sociology/Didaktische Strategien zum Umgang mit habitueller Vielfalt und spezifischer Fachkultur in Soziologie

    Directory of Open Access Journals (Sweden)

    Klarissa Lueg

    2011-06-01

    Full Text Available "The relevance of habitus, social origin and the mechanisms of exclusion as applied by the university system has often been discussed in current research. It has been stated that opportunities of students are impaired by field-of-study orientations and drop-out rates. In contrast to this, the aspect how university teachers can practically deal with this knowledge is less elaborated. In view of this, this article presents methods of how learner-oriented approaches, with special reference to the heterogeneity of student milieus, can be implemented in teaching sociology. On the basis of reviewing theoretical approaches and recent empirical data, this article points out a what data are relevant for the operationalisation of learner oriented didactics,b what concrete problems might occur in the teacher-student-relationship and c what techniques are to be applied by sociology teachers in handling classroom problems. The results demonstrate that teaching methods which adequately respond to heterogeneity within the culture of sociology departments are imperative and available. Still, to establish equal opportunities, a more practical turn in a hitherto predominantly theoretical discussion is clearly needed.Chancenungleichheit durch Passungsdifferenzen unterschiedlicher sozialer Milieus zum Hochschulsystem ist schon häufig theoretisch diskutiert worden. Zudem geben empirische Untersuchungen detaillierte Einblicke in studentische Milieus und Fachkulturen. Bei der Literaturrezeption entsteht der Eindruck, eine didaktische Reaktion auf das Problem der hochschulinternen Exklusionsmechanismen könnte nicht dringend genug sein. Die Konzeption entsprechender didaktischen Ansätze wird aber wenig thematisiert. Dieser Artikel hat den Anspruch, konkrete Umsetzungsmöglichkeiten von lernerzentrierten didaktischen Ansätzen im Fach Soziologie aufzuzeigen. In einem Fach, das grundsätzlich sensibel für Ungleichheiten ist, fehlen trotzdem heterogenit

  6. Determination and calculation of hazardous incident scenarios in accordance with the 3rd hazardous incident administrative instruction. Vol. 1; Ermittlung und Berechnung von Stoerfallablaufszenarien nach Massgabe der 3. Stoerfallverwaltungsvorschrift. Bd. 1: Methodischer Teil zum Erarbeiten von Stoerfallablaufszenarien

    Energy Technology Data Exchange (ETDEWEB)

    Kaiser, W.; Rogazewski, P.; Schindler, M. [TUeV Anlagentechnik GmbH, Berlin-Schoeneberg (Germany). Unternehmensgruppe TUeV Rheinland/Berlin-Brandenburg; Acikalin, A.; Albrecht, M.; Lambert, M.; Steinbach, J. [Technische Univ. Berlin (Germany)

    2000-07-01

    Stoerfaellen sowie zu Bedingungen des Standortes und der Anlage die erforderlichen Grundannahmen zum Stoerfallablauf gewinnen kann. Unterschieden nach Stofffreisetzungen, Explosionen und Braenden wird jeweils auf die konkreteren Hinweise im Anhang 1 zur Abschaetzung von Quelltermen, im Anhang 2 zur Abschaetzung der Ausbreitung und im Anhang 3 zur Abschaetzung der Auswirkungen verwiesen. Der Anhang 4 enthaelt einige Erlaeuterungen zu den Anhaengen 1 bis 3. Mit einer Sammlung von 15 Beispielen fuer Stoerfallablaufszenarien wird im Anhang 5 das im Leitfaden beschriebene methodische Vorgehen veranschaulicht und erlaeutert. Im Anhang 6 werden die auf dem deutschen Markt erhaeltlichen DV-Programme (Software) zur Berechnung von Stoerfallablaufszenarien beschrieben und kommentiert. Der Band 2 untermauert das Vorgehen im Hinblick auf Berechnungsmethoden, aktuelle Modelle und Modellgleichungen aus wissenschaftlicher Sicht. (orig.)

  7. ELBE - Validation and improvement of load prognoses - Phase 1; ELBE - Validierung und Verbesserung von Lastprognosen (Projektphase 1) - Zwischenbericht

    Energy Technology Data Exchange (ETDEWEB)

    Kronig, P.; Hoeckel, M.

    2008-07-01

    This comprehensive interim report for the Swiss Federal Office of Energy (SFOE) reviews work done at the Bernese University of Applied Sciences concerning various methods for the making of prognoses for grid loading in a liberalised electricity market with increasing supply of power from renewable resources. The liberalised Swiss electricity market is reviewed and production planning instruments are examined, as are the factors that influence such planning. Examples of load profiles are presented and discussed, as are the social, technical and meteorological factors that influence demand. The accuracy of various prognosis methods is reviewed. Simple methods using Excel spread-sheets and MatLab are compared and discussed. Commercially available systems are also briefly examined and work to be done in a second phase of the project is reviewed.

  8. ELBE - Validation and improvement of load prognoses (project phase 1); ELBE - Validierung und Verbesserung von Lastprognosen (Projektphase 1)

    Energy Technology Data Exchange (ETDEWEB)

    Kronig, P.; Waelchli, U.; Zuercher, S. [BKW FMB Energie AG, Bern (Switzerland); Hoeckel, M. [Berner Fachhochschule, Biel (Switzerland)

    2009-10-15

    In the project 'Prognosekompetenz' we have identified and quantified by means of a comprehensive analysis of grid and climate data the factors which have a significant impact on the grid load. The study focused in the beginning on the regional data from a big electricity utility. In a second step, additional local data were also considered to better identify climatic and economic characteristics. We found a strong correlation between load, on the one hand, and outdoor temperature and economic activity, on the other hand. The influence of further factors is very limited. On this basis we developed two Matlab-based, easy-to-use tools for the prediction of the daily grid load profile in quarter-of-hour steps. One tool uses the method of the transfer function, where specific correlation factors account for the influential factors. The second tool based on the method of the artificial neuronal network, which had been tuned with data from several years to make sure that a high accuracy is obtained. We could show by self developed testing procedures that for both tools the precision in forecasting the daily load profile is very high. (authors)

  9. Das Unsichtbare sichtbar machen. Zum vergessenen Beitrag der alten deutschen Frauenbewegung zur Wohn- und Siedlungsreform im frühen 20. Jahrhundert Making the Invisible Visible—On a Forgotten Contribution to the Early German Women’s Movement: Housing Reform at the Beginning of the Twentieth Century

    Directory of Open Access Journals (Sweden)

    Claudia Wucherpfennig

    2007-03-01

    Full Text Available Der Wohnungs- und Städtebau der Moderne gilt weitgehend als eine „Männerdomäne”. In ihrer Schrift Die Wohnungsfrage ist Frauensache! zeigen Ulla Terlinden und Susanna von Oertzen demgegenüber die vielfältigen und einflussreichen Beiträge der alten deutschen Frauenbewegung zur Wohnungsreform des frühen 20. Jahrhunderts und zum Neuen Bauen auf.The building of apartments and cities in modernity is seen often as a “male domain.” In the text The Apartment Question is Women’s Work! (Die Wohungsfrage ist Frauensache!, Ulla Terlinden and Susanna von Oertzen present the multiple and influential contributions of the early German women’s movement to housing reform at the beginning of the twentieth century as well as to Neues Bauen, an architectural style of the 1920s.

  10. Management of auxiliary aggregates - development and testing of methods for improved use of auxiliary aggregates of diesel and spark ignition engines in stationary and unstationary operation. Final report; Nebenaggregate-Management - Entwicklung und Erprobung von Verfahren zum verbesserten Einsatz der Nebenaggregate an Diesel- und Ottomotoren bei stationaerem und instationaerem Betrieb. Abschlussbericht

    Energy Technology Data Exchange (ETDEWEB)

    Schmidt, M; Lenzen, B; Groef, S; Isermann, R [Technische Univ. Darmstadt (Germany). Inst. fuer Regelungstechnik; Hohenberg, G [Technische Univ. Darmstadt (Germany). Fachgebiet Verbrennungskraftmaschinen

    1998-07-01

    Aggregate management is aimed at aggregate operation in consideration of demand, consumption and exhaust. Demands on reliability are high. Investigations were made using modelling, simulation, model reduction and identification, with the focus on model reduction. The resulting concepts for consumption reduction vary depending on the vehicle type and application. [German] Das Nebenaggregate-Management hat den bedarfs-, verbrauchs- und abgasorientierten Betrieb der Nebenaggregate im Kraftfahrzeug zum Ziel. Der sehr weit gespannte Einsatzbereich von Kraftfahrzeugen und die hohen Anforderungen an die Betriebszuverlaessigkeit stellen entsprechende Anforderungen an das Management. Zur Untersuchung eines verbesserten Betriebs von Nebenaggregaten wrden Verfahren der Regelungstechnik wie z.B. Modellbildung, Simulation, Modellreduktion und Identifikation eingesetzt, wobei der Modellreduktion in anbetracht des komplexen Gesamtsystems Kraftfahrzeug eine besondere Bedeutung zukommt. Ergebnisse der Untersuchungen sind Konzepte zur Verringerung des Verbrauchsanteils der Nebenaggregate, die je nach Fahrzeugtyp und Einsatzzweck variieren. (orig.)

  11. Rhodium on tungsten carbide - a new catalyst for reforming CH{sub 4} with CO{sub 2}; Rhodium auf Wolframcarbid - ein neuer Katalysator zum Reformieren von CH{sub 4} mit CO{sub 2}

    Energy Technology Data Exchange (ETDEWEB)

    Voelter, J. [Inst. fuer Angewandte Chemie e.V., Berlin (Germany); Berndt, H. [Inst. fuer Angewandte Chemie e.V., Berlin (Germany); Lietz, G. [Inst. fuer Angewandte Chemie e.V., Berlin (Germany); Preiss, H. [TU Bergakademie Freiberg (Germany). Inst. fuer Energieverfahrenstechnik; Tamme, R. [Deutsche Forschungsanstalt fuer Luft- und Raumfahrt e.V., Stuttgart (Germany). Inst. fuer Technische Thermodynamik

    1997-02-01

    bei 600 bis 700 C wieder als Waerme gewonnen werden. Die vorliegende Arbeit betrifft Katalysatoren zum Reformieren im Solarreceiverreaktor. Bisher wurde eine mit dispersem Rhodium geschwaerzte, makroporoese Schaumkeramik sowohl zur Absorption von Solarenergie wie auch zur Aktivierung der Reformierreaktion benutzt. Dabei ist die Menge Rhodium, die fuer eine effektive Absorption der Strahlung eingesetzt werden muss, viel groesser als die Rh-Menge, die fuer die katalytische Reaktion erforderlich ist. Um hochdisperses Rhodium zu erzeugen, wird die Schaumkeramik aus {alpha}-Al{sub 2}O{sub 3} mit einem Washcoat ({gamma}-Al{sub 2}O{sub 3}) beschichtet. Ziel unserer Untersuchungen war es, Rh nur noch als Katalysator einzusetzen und fuer die Strahlungsabsorption ein anderes geeignetes Material zu verwenden. Es sollte untersucht werden, ob das die Strahlung reflektierende {gamma}-Al{sub 2}O{sub 3} durch einen schwarzen poroesen Katalysatortraeger ersetzt werden kann. Als Material, das auch der thermischen Belastung standhalten kann, kam Wolframcarbid (WC) in Frage. WC ist bisher in der Literatur noch nicht als Traeger fuer einen Metallkatalysator beschrieben worden. Fuer die spezielle Anwendung im Receiverreaktor musste untersucht werden, ob es als ein Traeger zur Dispergierung von Rhodium geeignet ist und wie es sich als Washcoat zur Beschichtung der Schaumkeramik verhaelt. (orig./SR)

  12. Untersuchungen zum Potential eines Verbrennungsmotors mit Druckwellenlader

    OpenAIRE

    Binder, Emanuel

    2015-01-01

    Mithilfe der Abgasturboaufladung lässt sich der Kraftstoffverbrauch im Fahrzeugbetrieb durch das Anheben der spezifischen Motorleistung senken. Im Gegensatz zur mechanischen Aufladung verschlechtert sich jedoch mit der Abgasturbolaufladung das Ansprechverhalten. Eine Möglichkeit den Zielkonflikt von Kraftstoffverbrauch und Ansprechverhalten zu lösen ist es, den Abgasturbolader durch einen Druckwellenladers zu ersetzen. Dieser überträgt die Abgasenergie direkt auf die Frischluft in Form von Dr...

  13. Zum 80. Geburtstag der Zeitschrift Germanoslavica

    Czech Academy of Sciences Publication Activity Database

    Ulbrecht, Siegfried

    2011-01-01

    Roč. 17, č. 14 (2011), s. 3 ISSN 1213-2659 Institutional research plan: CEZ:AV0Z90920516 Keywords : Institute of Slavonic Studies sof the ASCR, v.v * scientific journal * Germanoslavica Subject RIV: AJ - Letters, Mass-media, Audiovision

  14. Verfahren zum Herstellen einer Beschichtung eines Substrats

    OpenAIRE

    Wilke, Martin; Töpper, Michael

    2013-01-01

    The method involves applying coating material (7) on surface (2) of recess (3) formed in substrate (1). A liquid auxiliary agent (6) is applied on substrate surface, such that recess is filled with auxiliary agent. The coating material is subsequently applied to auxiliary agent on substrate. A coating material portion in auxiliary agent is transported by coating material diffusion. The agent is subsequently separated from coating material, such that coating material on substrate surface is le...

  15. Glossary of natural resource; Glossar zum Ressourcenschutz

    Energy Technology Data Exchange (ETDEWEB)

    Kosmol, Jan; Kanthak, Judit; Herrmann, Friederike; Golde, Michael; Alsleben, Carsten; Penn-Bressel, Gertrude; Schmitz, Stefan; Gromke, Ulrich

    2012-01-15

    The contribution under consideration presents the most important terms in a logical context, and distinguishes clearly between these technical terms. Thus, this contribution raises the profile of the scientific, political and public debate. The glossary is being developed by an interdisciplinary working group of the Federal Environment Agency (Dessau-Rosslau, Federal Republic of Germany) since 2009. In 2010, the glossary was co-ordinated with parts of the German scientific community.

  16. Vom Webstuhl zum World Wide Web

    Directory of Open Access Journals (Sweden)

    Heide Palmer

    2003-03-01

    Full Text Available Die Autorin ist Direktorin der „Cybernetic Culture Research Unit“ an der University of Warwick. Sie bezeichnet sich als eine der Begründerinnen des „Cyberfeminismus“ und will mit nullen + einsen das Thema Frauen und Computer in ein neues Licht setzen. Ihre zentrale These lautet, dass das Internet eine Weiterentwicklung des Webstuhls sei. Mit Hilfe einer collage-artigen Erzählweise bildet Plant die nicht-lineare Struktur moderner Kommunikationsmittel ab.

  17. Einrichtung zum Spannen eines Endlos-Transmissionselements

    OpenAIRE

    Boley, D.; Rhomberg Kauert, A.

    1995-01-01

    The description refers to a device for clamping an endless transmission element such as a belt, a toothed belt or a chain of a drive unit, comprising a roller which contacts the transmission element and which has a rocker bearing which is applied against a spring in the direction of the transmission element. The invention is characterized by the fact that a blocking unit is provided to prevent the rocker from performing a return stroke.

  18. Das Ausmalbuch zum ATLAS-Experiment

    CERN Multimedia

    Anthony, Katarina

    2017-01-01

    Deutsche Fassung - The ATLAS Experiment Colouring Book is a free-to-download educational book, ideal for kids aged 5-9. It aims to introduce children to the field of High-Energy Physics, as well as the work being carried out by the ATLAS Collaboration.

  19. Vorrichtung und Verfahren zum Schaetzen eines Motordrehmoments

    OpenAIRE

    2004-01-01

    WO2004051212 A UPAB: 20040716 NOVELTY - The method for determining the torque of a combustion engine by measurement (1) of a measurement value representative of an angular velocity of the combustion engine and measurement of a second measurement value representative the charging pressure of the combustion engine or simulation of a charging pressure dependent on the first measurement value. Typically the torque is determined from the engine speed or the average indicated pressure. DETAILED DES...

  20. Vorrichtung zum Erzeugen eines markierten Referenzdatenstroms

    OpenAIRE

    Eilers, D.; Weiß, G.

    2008-01-01

    EP 2194457 A2 UPAB: 20100617 NOVELTY - The device (400) has a reference data generator (110) for producing a reference data stream (120) based on an input data stream (102), where the reference data stream includes a set of partial reference data streams with a set of markings. The markings indicate whether a chronological order between occurrences of the partial reference data streams is prescribed in the reference data stream. An analysis module (420) performs evaluation of a test object (4...

  1. Verfahren zum Herstellen einer kristallinen organischen Halbleiterschicht

    OpenAIRE

    Burghart, Markus

    2010-01-01

    The method involves applying (10) a layer of an organic semiconductor material on a carrier. The organic semiconductor material layer is heated at a temperature, so as to generate (20) recrystallization of organic semiconductor material and for increasing the crystallinity of the organic semiconductor material. A cooling down layer is formed such that the raised crystallinity of the organic semiconductor material is maintained. The organic semiconductor material is applied to the region of la...

  2. Partiell oberflaechengehaertete Riffelwalze und Verfahren zum Oberflaechenhaerten

    OpenAIRE

    Paul, H.; Krumphold, R.; Pollack, D.; Burck, P.; Kraegelin, L.; Neubert, P.

    1997-01-01

    DE 3711450 A UPAB: 19970307 Worn top surfaces of grooved rolls are renewed by producing a hard area (2) having a max. thickness of 0.4 mm and a width (3) determined by the tangent to the grooved surface from a plane cutting across the top of the groove equal to 45 deg.. The wear experienced by the roller corresponds to the shape of the hardened area therefore any soft annealing prior to machining is avoided. The energy beam used for hardening is pref. a CO2 laser and the ridge area is axially...

  3. Kontingenz, Redundanz, Transzendenz? - Zum Gerechtigkeitsbegriff Niklas Luhmanns

    Directory of Open Access Journals (Sweden)

    Moritz Renner

    2008-11-01

    Full Text Available Niklas Luhmanns systemtheoretische Rekonstruktion der „Kontingenzformel Gerechtigkeit“ gilt als der anspruchsvollste Versuch einer positivistischen Gerechtigkeitstheorie. Der Versuch zielt darauf ab, den Begriff der Gerechtigkeit aus den Operationen des Rechtssystems selbst zu entwickeln und setzt an der formalen Konsistenz rechtlicher Entscheidungen an. Vielfach ist Luhmanns Theorie daher ihr vermeintlicher Verlust der Einzelfallgerechtigkeit vorgeworfen worden. Neuere, an der Dekonstruktion orientierte Luhmann-Interpretationen begegnen diesem Einwand, indem sie die Offenlegung der Selbstwidersprüche des selbstreferentiellen Rechtssystems als eine Form der Rechtskritik auffassen, welche dem Rechtsdiskurs zwar immanent bleibt, zugleich aber auf die Möglichkeit seiner Transzendierung verweist.

  4. Kurz zum Klima: Schiefergas und Fracking

    OpenAIRE

    Triebswetter, Ursula; Lippelt, Jana

    2012-01-01

    Das Verfahren zur Gewinnung von Erdgas aus wenig durchlässigem Gestein, das in den USA erfundene und dort bereits weit verbreitete »Hydraulic Fracturing«, kurz Fracking, ist aus Umweltgründen umstritten. Der Beitrag skizziert zunächst die Technologie des Fracking, umreißt dann die weltweiten Lagerstätten und beschreibt die umweltpolitische Problematik. Abschließend wird die aktuelle Situation in Deutschland dargestellt.

  5. Zum Stand und den Perspektiven der allgemeinsprachlichen ...

    African Journals Online (AJOL)

    Mev. R.B. Ruthven

    so dass man nicht weiß, wie die Aktualität der gegenwärtigen slowenischen ...... zu wa23 in Abb. 1 gehören; Abkürzungen: A. = ABSTRAKTE; H = HIERAR-. CHISCHE ...... Ulrich, Stefan Evert, Egbert Lehmann und Christian Rohrer (Hrsg.).

  6. Verfahren zum Herstellen einer wasserfreien Siliziumdioxidschicht

    OpenAIRE

    Klumpp, A.

    1991-01-01

    In a process for the production of a moistureless silicon dioxide layer starting from a silicate layer, polysiloxane is photoinduced, polymerized and separated, whereupon the polysiloxane layer is converted into a silicate layer. By transforming the the silicate layer by chemical reaction of the water bound in said layer by means of silane, the silicate layer is converted into a moistureless silicon dioxide layer.

  7. Der Einsatz von medizinischen Trainingszentren für die Ausbildung zum Arzt in Deutschland, Österreich und der deutschsprachigen Schweiz [Clinical Skills Labs in Medical Education in Germany, Austria and German Speaking Switzerland

    Directory of Open Access Journals (Sweden)

    Schmidt, Anita

    2008-05-01

    . This would facilitate the development of common quality standards and guidelines for medical skills labs. It also seems to be necessary to define the term “central skills lab” accurately. The authors recommend the Committee on Practical Skills of the Gesellschaft für Medizinische Ausbildung (GMA as a platform for such co-operation. [german] Zielsetzung: Seit der Novellierung der ÄAppO im Jahr 2002 werden im deutschsprachigen Raum an den medizinischen Universitäten zunehmend Medizinische Trainings- und Prüfungszentren eingerichtet. Die vorliegende Erhebung soll einen Überblick über den Stand der Entwicklung in diesem Bereich in Deutschland, Österreich und der deutschsprachigen Schweiz bieten. Methodik: In der Zeit von August bis Dezember 2007 wurden alle 43 medizinischen Fakultäten in Deutschland, Österreich und der deutschsprachigen Schweiz schriftlich befragt. Der Fragebogen umfasste 7 Themenbereiche. Die weitere Auswertung bezieht sich auf Trainingszentren, in denen mehr als eine Disziplin unterrichtet wird („zentrale“ Trainingszentren. Ergebnisse: Der Rücklauf betrug 100%. Von 43 Fakultäten verfügten 33 zum Zeitpunkt der Befragung über ein Trainingszentrum, 24 davon gingen in die weitere Auswertung ein. 22 Trainingszentren waren ärztlich geleitet, die Zahl der Mitarbeiter lag zwischen 1 bis 8, die der studentischen Tutoren zwischen 0 und 40. Das Spektrum der zur Verfügung stehenden Grundfläche reichte von unter 100 Quadratmetern bis zu 2500 Quadratmetern. An den meisten Trainingszentren wurde mit strukturierten Arbeitsanleitungen gearbeitet (19 Einrichtungen, in 18 Einrichtungen unterrichteten Ärzte und studentische Tutoren. In der Mehrheit der Fälle (13 war der Unterricht curricular integriert. An 19 Zentren wurden OSKE durchgeführt. An 19 Zentren wurde mit Simulationspatienten gearbeitet, die in 15 Zentren auch für Prüfungen eingesetzt wurden. 17 Zentren arbeiteten mit problemorientiertem Lernen, 16 setzten computerbasiertes Lernen ein

  8. Sustainable prevention of resource conflicts. Policy and research recommendations (report 5); Rohstoffkonflikte nachhaltig vermeiden. Forschungs- und Handlungsempfehlungen (Teilbericht 5)

    Energy Technology Data Exchange (ETDEWEB)

    Taenzler, Dennis; Westerkamp, Meike [Adelphi Research, Berlin (Germany); Supersberger, Nikolaus; Ritthoff, Michael; Bleischwitz, Raimund [Wuppertal Institut (Germany)

    2011-04-15

    Raw material conflict occurs in various forms: in the form of supply bottlenecks and crises, violent disputes, or even war; as well as due to the effects of environmental destruction, whereby the sources of people's livelihood are lost. Raw material conflict is a reality in many instances, but in others is merely postulated. On the one hand, the nature, strategic importance and price of raw materials influence potential conflict constellations. On the other hand, much depends on the management and governance of raw material resources and production, material flows, value creation chains and sources of financing, across a variety of levels. Existing research into raw material conflict in the field of oil, gas and valuable minerals reveals the multi-layered complexity of the issue as well as the necessity and possibilities of avoiding such conflict in a sustainable manner over the long term. This research landscape was the starting point for the study by adelphi and the Wuppertal Institute titled ''Sustainable Prevention of Resource Conflicts: Identifying and reducing international conflict risk relating to access to and use of raw materials''. The project has added to existing research and delivered new perspectives in relation to lithium and rare earths - resources which are of special relevance for future energy supply and planning - with a view to developing renewable energy sources and meeting ambitious climate protection goals. This report summarises the results of the research project and sets out recommendations. The project was sponsored by the German Federal Environmental Agency, and was conducted in the period between July 2008 and September 2010. The results are published in a total of eight reports which are briefly summarised here. (orig.)

  9. Particle Reduction Strategies - PAREST. Agricultural emissions. Sub-report; Strategien zur Verminderung der Feinstaubbelastung - PAREST. Landwirtschaftliche Emissionen. Teilbericht

    Energy Technology Data Exchange (ETDEWEB)

    Daemmgen, Ulrich; Haenel, Hans-Dieter; Roesemann, Claus; Hahne, Jochen [Johann Heinrich von Thuenen-Institut (vTI), Braunschweig (Germany); Eurich-Menden, Brigitte; Grimm, Ewald; Doehler, Helmut [Kuratorium fuer Technik und Bauwesen in der Landwirtschaft e.V. (KTBL), Darmstadt (Germany)

    2013-06-15

    The German agricultural emission inventory is designed as an instrument of policy advice. The essential aim is to describe the emitting processes so that options for reducing emissions can be quantified. The German agricultural emission model GAS-EM uses in the field of NH{sub 3} emissions from soils and plants in the EMEP / CORINAIR Guidebook (EMEP / CORINAIR, 2002) proposed methods. These differ in emission factors between several types of fertilizers and their application to acre or grassland in function of the average spring temperature. In the field of emissions from animal husbandry GAS-EM follows a material flow approach, where initially the energy and nutrient requirements for a given power (here are weight, weight gain, milk yield, number of piglets, etc. involved) the excretion of metabolizable carbon compounds and the N excretion can be calculated with feces and urine. Subsequently, for all animal species emissions of nitrogen species NH{sub 3}, NO, N{sub 2}O and N{sub 2} from the grazing, indoor housing, storage and distribution of farm fertilizers calculated. [German] Das deutsche landwirtschaftliche Emissionsinventar ist als Instrument der Politikberatung konzipiert. Wesentliches Ziel ist es, die emittierenden Prozesse so zu beschreiben, dass Minderungsmoeglichkeiten quantifiziert werden koennen. Das deutsche landwirtschaftliche Emissions-Modell GAS-EM bedient sich im Bereich der NH{sub 3}-Emissionen aus Boeden und Pflanzen der im EMEP/CORINAIR-Guidebook (EMEP/CORINAIR, 2002) vorgeschlagenen Methoden. Diese unterscheiden bei den Emissionsfaktoren zwischen mehreren Duengersorten und deren Anwendung auf Acker oder Gruenland in Abhaengigkeit von der mittleren Fruehjahrstemperatur. Im Bereich der Emissionen aus der Tierhaltung verfolgt GAS-EM einen Stofffluss-Ansatz, bei dem zunaechst ueber den Energie- und Naehrstoffbedarf bei gegebener Leistung (hier werden Gewicht, Gewichtszuwachs, Milchleistung, Zahl der Ferkel u. ae. hinzugezogen) die Ausscheidungen an umsetzbaren Kohlenstoff-Verbindungen sowie die N-Ausscheidungen mit Kot und Harn berechnet werden. Anschliessend werden fuer alle Tierarten die Emissionen der Stickstoff-Spezies NH{sub 3}, NO, N{sub 2}O und N{sub 2} aus dem Weidegang, der Stallhaltung, der Lagerung und Ausbringung von Wirtschaftsduengern berechnet.

  10. Sustainable prevention of resource conflicts. Approaches to minimize risk (Report 4); Rohstoffkonflikte nachhaltig vermeiden. Ansaetze zur Risikominimierung (Teilbericht 4)

    Energy Technology Data Exchange (ETDEWEB)

    Taenzler, Dennis; Westerkamp, Meike [Adelphi Research, Berlin (Germany); Supersberger, Nikolaus; Ritthoff, Michael; Bleischwitz, Raimund [Wuppertal Institut (Germany)

    2011-04-15

    Conflicting constellations and the resulting risk of conflict over raw materials are highly complex. This report investigates approaches of various groups of actors and various fields of politics to minimize this risk, with the intention of identifying and analyzing relevant and innovative approaches and to outline their potential and shortcomings in solving risky constellations. The approaches presented here were selected for their relevance and actuality. This includes, on the one hand, approaches that investigate violent conflicts in the producer countries. On the other hand, approaches are considered that attempt to influence the risk of conflict by governmental or private environmental, climate and resources policies. (orig./RHM)

  11. Evaluation of load case ``switch-off of the high pressure pump of the emergency core cooling system``, measures of verification and in situ-test; Einstufung des Lastfalls ``Ausfall der TH-Hochdruckeinspeisepumpe``, Massnahmen zur Verifikation bis hin zum Grossversuch

    Energy Technology Data Exchange (ETDEWEB)

    Trobitz, M.; Mattheis, A. [Kernkraftwerke Gundremmingen Betriebsgesellschaft m.b.H. (Germany); Kerkhof, K.; Hippelein, K. [Stuttgart Univ. (Germany). Staatliche Materialpruefungsanstalt; Gurr-Beyer, C. [Buero fuer Baudynamik, Stuttgart (Germany); Hofstoetter, P. [Technischer Ueberwachungs-Verein Rheinland e.V., Koeln (Germany)

    1998-11-01

    Within the framework of periodic safety inspection of the Gundremmingen power station (RWE-Bayernwerk - KRB II), the load collectives used for the design of safety-relevant systems and components were checked for their consistency with latest updates of the design basis. It was found that there was no analytical information or study available describing a particular process and its effects, namely switch-off of the high-pressure feedwater pump of the emergency core cooling system. The paper reports the work performed for closing the gap, including preparatory analyses, accompanying measures such as vibration measurements during plant shut-down, as well as the preparation and performance of the in-situ test. The experimental results and the comparative evaluation of calculated and experimental data are presented. (orig./CB) [Deutsch] Im Rahmen der periodischen Sicherheitsueberpruefung des Kernkraftwerkes Gundremmingen (Kernkraftwerke RWE-Bayernwerk - KRB II) wurden u.a. die Lastkollektive, die zur Auslegung sicherheitstechnisch relevanter Systeme und Komponenten herangezogen wurden, auf Aktualitaet ueberprueft. Dabei zeigte sich, dass bislang fuer eine Betriebsweise - naemlich das Abschalten der Hochdruckeinspeisepumpe des nuklearen Not- und Nachkuehlsystems (TH-HD-Pumpe) - keine analytischen Untersuchungen vorliegen. Vorbetrachtungen fuer analytische Untersuchungen, begleitende Massnahmen wie Schwingungsmessungen waehrend des Anlagenstillstandes, sowie der Versuchsaufbau und die Versuchsdurchfuehrung des Anlagenversuches werden hier dargestellt. Die Ergebnisse und der Vergleich Rechnung-Messung zum Grossversuch werden in diesem Beitrag vorgestellt. (orig.)

  12. Satzstruktur und adverbiale Subordination. Eine Studie zum Deutschen und zum Italienischen

    Directory of Open Access Journals (Sweden)

    Hardarik Blühdorn

    2014-09-01

    Full Text Available This paper investigates the syntactic behaviour of adverbial clauses in contemporary German and Italian. It focuses on three main questions: (i How many degrees of syntactic integration of adverbial clauses are there to be distinguished by an adequate grammatical description of the two languages? (ii Which linear and hierarchical positions in the structure of the matrix sentence can be occupied by adverbial clauses? (iii Which is the empirical distribution of adverbial clauses introduced by the conjunctions als, während, wenn, obwohl and weil in German, as well as quando, mentre, se, sebbene and perché in Italian? Responding to question (i, a distinction is drawn between strongly integrated, weakly integrated and syntactically disintegrated adverbial clauses. There are further degrees on the gradient of syntactic integration, which are not examined in this paper. Responding to question (ii, eight classes of structural positions in the matrix sentence are identified that can be occupied by adverbial clauses. Five of them are positions of syntactic integration, three are positions of disintegration. Responding to question (iii, the distribution of the ten classes of adverbial clauses is described on the basis of a corpus of internet data. Strongly integrated, weakly integrated and disintegrated adverbial clauses show clearly different distributions within the structure of the matrix sentence. Also the semantic classes of adverbial clauses (temporal, adversative, conditional, concessive, causal are distributed differently.

  13. High-productivity laser deposition welding using powder and wire. Final report of the project 'Higher efficiency of thermal coating plants by a combination of energy sources'; Hochproduktives Laser-Auftragschweissen mit Pulver und Draht. Ergebnisbericht zum Verbundvorhaben ''Wirkungsgradsteigerung thermischer Beschichtungsanlagen durch Energiequellenkombination''. SPRAYNERGY

    Energy Technology Data Exchange (ETDEWEB)

    Nowotny, Steffen (ed.)

    2013-05-01

    Excellent precision, maximum mechanical strength and selective properties of the generated coatings and 3D structures caused a breakthrough of laser deposition welding in industrial production. However, the technology is limited by its low deposition rates in those cases where large-surface components are to be coated while laser-typical corrosion and wear resistance characteristics are to be achieved. Examples are, e.g. hydraulic cylinders for offshore applications, tools for petroleum or gas production and mining, or large-scale conveyors. In these cases, modern laser hybrid technologies open up new applications. By effectively combining the laser energy with other energy sources, e.g. inductive heating, autogenic flames or electric resistance, high deposition rates are achieved with excellent coating qualities, which makes the laser process competitive also in the case of large-surface coatings. (orig./AKB) [German] Exzellente Praezision, hoechste mechanische Festigkeit und massgeschneiderte Eigenschaften von Oberflaechenschichten wie auch generativ erzeugten 3D-Strukturen: diese Merkmale haben dem Auftragschweissen mit Laserstrahlen zum Durchbruch in der industriellen Produktion verholfen. Die geringen Auftragraten setzen der Technologie jedoch in jenen Faellen Grenzen, wo es um Flaechenbeschichtungen grosser Bauteile geht, deren Einsatz aber dennoch die lasertypischen Schichteigenschaften hinsichtlich Korrosions- oder Verschleissbestaendigkeit erfordert. Beispiele sind lange Hydraulikzylinder im Offshore-Bereich, Werkzeuge der Oel- und Gasfoerderung und des Bergbaus sowie grosse Foerderschnecken. Hier erweitern moderne Laser-Hybridtechnologien wirkungsvoll die Einsatzmoeglichkeiten. Durch effiziente Kombination der Laserenergie mit anderen Energiequellen in Form induktiver Erwaermung, autogener Flammen oder elektrischem Widerstand werden hohe Auftragraten bei gleichzeitigem Erhalt der besonderen Schichtqualitaet erreicht, die das Laserverfahren auch bei

  14. Experimental investigations for provision of a data basis for optimization of active surge control. Final report; Experimentelle Untersuchungen zur Bereitstellung einer Datenbasis fuer die Optimierung der aktiven Stabilitaetsverbesserung. Teilverbund-Projekt: Aktive Stabilitaetsverbesserung - Analyseverfahren der Arbeitsgemeinschaft AG Turbo II. Abschlussbericht zum Vorhaben 1.1.4

    Energy Technology Data Exchange (ETDEWEB)

    Seume, J.; Reissner, A.

    2001-07-01

    Presently axial compressors have to run with considerable distance to operation points of high load although usually the best efficiencies can be obtained there. In those areas there is high danger of surge which brings high damaging potential to the compressor. The prediction time to surge presently is very short (<<1s) and depends on the load and rotor rotation of the compressor. The goal of this project is the production of a data basis to investigate stall inception (which is the precursor of surge) and to develop and test better precursory warning algorithms. An extensive set of data as well in stable as in unstable operating points in different load areas was developed which now is ready for use in research, verification and for comparison of forewarning systems. (orig.) [German] Zur Zeit ist es notwendig, Axialverdichter mit deutlichem Abstand von den hoch belasteten Betriebspunkten zu betreiben, obwohl haeufig dort die besten Wirkungsgrade zu erzielen waeren. In diesen Bereichen kann es leicht zu sog. Pumpen kommen, wodurch der Verdichter einem extremen Schaedigungspotential ausgesetzt ist. Die Vorwarnzeiten fuer das Pumpen sind bisher noch sehr kurz. Sie liegen in einem Bereich von deutlich weniger als einer Sekunde (abhaengig von der Belastung und der Drehzahl des Verdichters). Ziel dieser Untersuchungen ist es, eine Datenbasis zu liefern, anhand derer die Entstehungsmechanismen untersucht und moeglichst fruehzeitige Vorwarnalgorithmen entwickelt bzw. erprobt werden koennen. Es wurde eine umfangreiche Datenbasis sowohl an verschiedenen stabilen als auch instabilen Betriebspunkten in unterschiedlichen Lastbereichen erstellt, die nun zur Entwicklung, zur Verifizierung und zum Vergleich von Fruehwarnsystemen zur Verfuegung steht. (orig.)

  15. How does the German executive judge the risk of a global climate change? An opinion survey on the risk management in environmental policy; Wie schaetzt die deutsche Exekutive die Gefahr eines globalen Klimawandels ein? Eine Meinungsumfrage zum Risikomanagement in der Umweltpolitik

    Energy Technology Data Exchange (ETDEWEB)

    Krueck, C. [VDI-Technologiezentrum Physikalische Technologien, Duesseldorf (Germany). Abt. Zukuenftige Technologien; Bray, D. [GKSS-Forschungszentrum Geesthacht GmbH (Germany). Inst. fuer Gewaesserphysik

    2000-07-01

    Global warming is a problem which is scientifically complex and risky for political institutions. Coping with this problem requires elaborate methods of information exchange and accommodation between scientific and political institutions in order to facilitate risk management and decisions under uncertainty. This paper explores the relationship between science and politics based on the results of a survey of representatives of the German executive branch (both on the Federal and the Laender level) who are in charged with regulating environmental, nature and climate protection affairs. Results indicate that the top-level administrative staff in Germany perceive climate change as an urgent problem but are undecided whether 'climate research has managed to remain a neutral, value-free science'. Climate change is perceived as an exceptionally complex problem for science which is still faced with numerous knowledge gaps. At present, the relation problem for science which is still faced with numerous knowledge gaps. At present, the relation between the executive branch and climate research is trust-based but also quite distanced, particularly, at the regional (Laender) level. (orig.) [German] Die Warnung vor einer globalen Erwaermung konfrontiert die Politik mit einem Problem, das wissenschaftlich komplex und politisch riskant ist. Die Bewaeltigung derartiger Probleme erfordert ein hohes Mass an Informationsaustausch und Verstaendigung zwischen politischen und wissenschaftlichen Institutionen, um Risikomanagement zu betreiben und Entscheidungen unter Unsicherheit zu treffen. Um ein genaueres Bild davon zu gewinnen, wie die Bedrohung des Klimawandels in der deutschen Politik wahrgenommen und handhabbar gemacht wird, wurde ein wichtiges Segment des deutschen politischen Systems unter die Lupe genommen: Fuehrende Vertreter der Exekutive (Verwaltung), die auf Bundes- und Laenderebene mit Fragen des Umwelt-Natur- und Klimaschutzes befasst sind, wurden zum Thema

  16. ELBE - Analysis and appraisal of loading and weather data (project phase 2); ELBE - Analyse und Auswertung von Last- und Wetterdaten (Projektphase 2)

    Energy Technology Data Exchange (ETDEWEB)

    Kronig, P.; Waelchli, U.; Zuercher, S. [BKW FMB Energie AG, Bern (Switzerland); Hoeckel, M. [Berner Fachhochschule, Biel (Switzerland)

    2009-10-15

    In the project 'Prognosekompetenz' we have identified and quantified by means of a comprehensive analysis of grid and climate data the factors which have a significant impact on the grid load. The study focused in the beginning on the regional data from a big electricity utility. In a second step, additional local data were also considered to better identify climatic and economic characteristics. We found a strong correlation between load, on the one hand, and outdoor temperature and economic activity, on the other hand. The influence of further factors is very limited. On this basis we developed two Matlab-based, easy-to-use tools for the prediction of the daily grid load profile in quarter-of-hour steps. One tool uses the method of the transfer function, where specific correlation factors account for the influential factors. The second tool based on the method of the artificial neuronal network, which had been tuned with data from several years to make sure that a high accuracy is obtained. We could show by self developed testing procedures that for both tools the precision in forecasting the daily load profile is very high. (authors)

  17. Photoactivation of the p-nucleus {sup 92}Mo at the bremsstrahlung measurement place of ELBE; Photoaktivierung des p-Kerns {sup 92}Mo am Bremsstrahlungsmessplatz von ELBE

    Energy Technology Data Exchange (ETDEWEB)

    Erhard, Martin Andreas

    2010-02-26

    By the high intensity of the bremsstrahlung of up to 20 MeV to 10{sup 9} MeV{sup -1}cm{sup -2}s{sup -1} in the energy range up to 20 MeV in the framework of this thesis for the first time not only the ({gamma},n), but also the ({gamma},p) reactions could be studied on {sup 92}Mo at astrophysically relevant energies.

  18. Development of biotest assays using cell cultures from fish for the demonstration of lethal and sublethal damage to organisms due to environmental pollutants in water. Cellular biomarkers in fish cell cultures; Entwicklung von Biotestverfahren mit Zellkulturen aus Fischen zum Nachweis letaler und subletaler Schaeden von Organismen durch Umweltschadstoffe im Wasser. Zellulaere Biomarker in Fischzellkulturen

    Energy Technology Data Exchange (ETDEWEB)

    Braunbeck, T [Heidelberg Univ. (Germany). Zoologisches Inst. 1

    1994-06-01

    Methoden zum Nachweis des (oeko-)toxikologischen Potential von Schadstoffen dar. In allen Experimenten konnten klare Zeit-Wirkungs- und Dosis-Wirkungs-Beziehungen aufgestellt werden. Isolierte Hepatocyten aus der Leber der Regebogenforelle reagieren empfindlicher als die parallel untersuchten permanenten Zellinien R1 und RTG-2. In Cytotoxizitaetstests mit den bibrocytischen Fischzellinien R1 und RTG-2 aus der Leber bzw. der Gonade der Regenbogenforelle wurden fuer verschiedene organische Schadstoffe und organische und anorganische Schwermetallverbindungen Cytotoxizitaetsdaten erhoben. Diese Erkenntnisse wurden einem Konzept fuer den Einsatz von mehrstugigen Zelltests zur Abschaetzung des oekotoxikologischen Potentials von Umweltschadstoffen zugrunde gelegt, das hier vorgestellt wird. (orig./VHE)

  19. Reduction of {sup 137}caesium contamination in wild boars by supplementing offered food with ammonium-iron-hexa-cyanoferrate; Reduktion der {sup 137}Caesium-Aktivitaet in Wildschweinen durch Zusatz von Ammonium-Eisen-Hexacyanoferrat (''Berliner Blau'') zum Kirrfutter

    Energy Technology Data Exchange (ETDEWEB)

    Morfeld, P. [Evonik Industries AG, Essen (Germany). Inst. fuer Epidemiologie und Risikobewertung in der Arbeitswelt (IERA); Koeln Univ. (Germany). Inst. und Poliklinik fuer Arbeitsmedizin, Umweltmedizin und Praeventionsforschung; Reddemann, J.; Schungel, P. [Landesjagdverband Bayern e.V., Feldkirchen (Germany); Kienzle, E. [Muenchen Univ., Oberschleissheim (Germany). Lehrstuhl fuer Tierernaehrung und Diaetetik

    2014-06-15

    This replication study investigated whether the {sup 137}caesium ({sup 137}Cs) contamination of wild boars could be relevantly reduced under field conditions by adding ammonium-iron-hexa-cyanoferrate (AFCF; Prussian blue) to the food. In 285 wild boars that had been shot in six Bavarian hunting territories during the season (November until May) between 01 November 2010 and 10 December 2011 {sup 137}Cs contamination was analysed. Thirty-five animals originated from two hunting territories in which offered food had been supplemented with 1250 mg AFCF per kilogram food. The control animals showed a mean {sup 137}Cs contamination of 522 Bq/kg lean skeletal muscle meat. Direct (univariable) comparisons of the two experimental territories with the four control territories yielded a mean reduction in {sup 137}Cs contamination due to Prussian bluefeeding by -211 Bq/kg (p < 0.001). Multivariable mo dels that took potential confounders into account (age, weight, sex, hunting date, territory) estimated the effect to be -344 Bq/kg (p < 0.05). This replication study confirmed the finding of Kienzle et al. (12) who described a statistically significant reduction in {sup 137}Cs contamination by -380 Bq/kg due to the feeding of Prussian blue in other territories. [German] Gegenstand und Ziel: Diese Replikationsstudie pruefte, ob unter Feldbedingungen die Kontamination von Wildschweinen mit {sup 137}Caesium ({sup 137}Cs) durch Zugabe vn Ammonium-Eisen-Hexacyanoferrat (AFCF, ''Berliner Blau'') zum ausgelegten Futter relevant verringert werden kann. Material und Methoden: Bei 285 Wildschweinen, die zwischen dem 01.11.2010 und dem 10.12.2011 waehrend der Jagdsaison (November bis Mai) in sechs bayerischen Jagdrevieren erlegt worden waren, erfolgte eine Analyse der {sup 137}Cs-Aktivitaet. Von diesen Tieren stammten 35 aus zwei Revieren, in denen das ausgelegte Futter mit 1250 mg AFCF/kg Futter supplementiert worden war. Ergebnisse: Die Kontrolltiere wiesen eine

  20. Transnational System Building Across Geopolitical Shifts. The Danube-Oder-Elbe Canal, 1901-2015

    Czech Academy of Sciences Publication Activity Database

    Janáč, Jiří; van der Vleuten, E.

    2016-01-01

    Roč. 9, č. 2 (2016), s. 272-291 ISSN 1965-0175 R&D Projects: GA ČR GA15-04902S Institutional support: RVO:68378114 Keywords : large technical systems * water politics * environmental history Subject RIV: AB - History Impact factor: 2.500, year: 2016

  1. Photoactivation of the p-nucleus 92Mo at the bremsstrahlung measurement place of ELBE

    International Nuclear Information System (INIS)

    Erhard, Martin Andreas

    2010-01-01

    By the high intensity of the bremsstrahlung of up to 20 MeV to 10 9 MeV -1 cm -2 s -1 in the energy range up to 20 MeV in the framework of this thesis for the first time not only the (γ,n), but also the (γ,p) reactions could be studied on 92 Mo at astrophysically relevant energies.

  2. Larval trematodes in freshwater molluscs from the Elbe to Danube rivers (Southeast Germany): before and today

    Czech Academy of Sciences Publication Activity Database

    Faltýnková, Anna; Haas, W.

    2006-01-01

    Roč. 99, č. 5 (2006), s. 572-582 ISSN 0932-0113 R&D Projects: GA AV ČR IAA6022404; GA ČR GD524/03/H133; GA MŠk LC522 Institutional research plan: CEZ:AV0Z60220518 Keywords : Trematoda * cercariae * Mollusca Subject RIV: EB - Genetics ; Molecular Biology Impact factor: 1.140, year: 2006

  3. The balancing experiment 1982 (BILEX '82) on the Unter Elbe River

    International Nuclear Information System (INIS)

    Michaelis, W.; Knauth, H.D.

    1985-01-01

    Temporal variabilities and spatial heterogeneities which are characteristic for tidal rivers considerably complicate the treatment of the both ecologically and economically important transport of suspended particulate matter and heavy metals. In 1982, a new concept to tackle this problem and the experimental and theoretical tools developed for its realization were, for the first time, tested in a concerted action. The instrumentation and the simulation models (current simulation model MOHNA, transport model FLUSS) applied have, in principle, proved a success. The experience gained during the campaign allows conclusions with regard to possible improvements to further increase the output. Extensive hydrographic, trace analytical and mathematical results are presented. They permit to judge the chance of success of future experiments of this kind and give hints how to proceed with further transport investigations under the complex conditions of a tidal river. (orig./HP) [de

  4. Drought stress impact on vegetable crop yields in the Elbe River lowland between 1961 and 2014

    Czech Academy of Sciences Publication Activity Database

    Potopová, V.; Štěpánek, Petr; Farda, Aleš; Türkott, L.; Zahradníček, Pavel; Soukup, J.

    2016-01-01

    Roč. 42, č. 1 (2016), s. 127-143 ISSN 0211-6820 R&D Projects: GA MŠk(CZ) LD14043; GA ČR GA13-19831S Institutional support: RVO:67179843 Keywords : standardized precipitation evapotranspiration index * drought stress * reference evapotranspiration * crop evapotranspiration * crop coefficient * Czech Republic Subject RIV: EH - Ecology, Behaviour

  5. A newly established round goby (Neogobius melanostomus) population in the upper stretch of the river Elbe

    Czech Academy of Sciences Publication Activity Database

    Roche, Kevin Francis; Janáč, Michal; Šlapanský, Luděk; Mikl, Libor; Kopeček, Lukáš; Jurajda, Pavel

    2015-01-01

    Roč. 416, č. 33 (2015), s. 33 ISSN 1961-9502 R&D Projects: GA ČR(CZ) GAP505/11/1768 Institutional support: RVO:68081766 Keywords : Gobiidae * species introduction * non-native species * population expansion * ship-mediated transport Subject RIV: EH - Ecology, Behaviour Impact factor: 0.978, year: 2015

  6. Scientists help children victims of the Chernobyl reactor accident. Report on project phase 1 and annex to the report on phase 1: 1.4.1993 - 31.3.1996; Wissenschaftler helfen Tschernobyl-Kindern. Bericht der Phase I und Anhang zum Bericht der Phase I: 1.4.1993 - 31.3.1996

    Energy Technology Data Exchange (ETDEWEB)

    Reiners, C [Wuerzburg Univ. (Germany). Klinik und Poliklinik fuer Strahlentherapie; Streffer, C [Essen Univ. (Gesamthochschule) (Germany). Inst. fuer Medizinische Strahlenbiologie; Voigt, G; Paretzke, H G [GSF - Forschungszentrum fuer Umwelt und Gesundheit Neuherberg GmbH, Oberschleissheim (Germany). Inst. fuer Strahlenschutz; Heinemann, G [Preussische Elektrizitaets-AG (Preussenelektra), Hannover (Germany); Pfob, H [Badenwerk AG, Karlsruhe (Germany)

    1997-12-01

    Gemeinschaftsausschusses Strahlenforschung stand. Im Rahmen des Teilprojekts `Therapie und Ausbildung` wurden in der Zeit vom 01.04.1993-31.03.1996 insgesamt 99 Kinder aus Weissrussland mit besonders fortgeschrittenen Formen des Schilddruesenkrebses in Deutschland einer Spezialbehandlung mit Radioiod unterzogen. Bei rund 60% dieser Kinder konnte bisher eine komplette Beseitigung des Schilddruesenkrebses erreicht werden. Im Berichtzeitraum wurden ausserdem insgesamt 41 weissrussische Aerzte und Physiker auf dem Gebiete der nuklearmedizinischen Diagnostik und Therapie des Schilddruesenkarzinoms ausgebildet. Das Teilprojekt `Biologische Dosimetrie` befasst sich einerseits mit der Frage, ob die Bestimmung von Mikronuklei in peripheren Lymphozyten auch noch mehrere Jahre nach der Reaktorkatastrophe eine Aussage zur Strahlenexposition erlaubt. Ausserdem wurde geprueft, ob Mikronuklei geeignet sind, den Verlauf der Radioiodtherapie im Rahmen der Behandlung von Schilddruesentumoren zu verfolgen. Weiterhin wurde an einer im Vergleich zur vorliegenden Literatur grossen Zahl von kindlichen Tumoren geprueft, ob es spezifische Mutationsmuster in Tumor-Suppressorgenen (p-53) in Schilddruesentumoren gibt, die zum Nachweis der Strahleninduktion dieser Tumoren geeignet sich. Das Teilprojekt `Retrospektive Dosimetrie und Risikoanalyse` befasste sich vor allem mit der Frage, ob die Vermutung zutrifft, dass die Freisetzung von I-131 bei der Reaktorkatastrophe zur erhoehten Inzidenz von Schilddruesenkarzinomen bei Kindern gefuehrt hat. Das Teilprojekt `Koordinations- und Untersuchungsstelle Minsk` setzte die Aufgaben einer Dienstleistungsstelle vor Ort fuer alle am GAST-Projekt beteiligten Aktivitaeten um. (orig./MG)

  7. Foerdervorrichtung zum geneigten oder senkrechten Foerdern von Stueckgut

    OpenAIRE

    Westermann, T.

    1997-01-01

    The first conveyor consists of a driven conveyor belt with tightener and pressure piece (4,5) pressing the conveyor belt (1), depending on the size of the piece of goods (13), against the second conveyor in the form of a fixed, inflexible wall slide plate (3). When the conveyor belt is placed against the fixed wall, an air gap (14) of between 5 and 10 millimetres long is formed between the two conveyors. Openings in the top and bottom of the conveyor arrangement, between the conveyor belt and...

  8. From graphene to silicene; Vom Graphen zum Silicen

    Energy Technology Data Exchange (ETDEWEB)

    Fischer, Lars [Spektrum.de, Heidelberg (Germany)

    2012-08-15

    Already in 1993 it was predicted quantum mechanically: In analogy to carbon also the chemically related silicon atom should form a thick sheet of hexagons. Presumably, this silicene would be even more appropriate than graphene for high-power electronics. But now physicists succeeded in the production of this material in the laboratory.

  9. Die Beziehungen der Kelten vom Oberleiserberg zum Ostalpenraum

    Czech Academy of Sciences Publication Activity Database

    Karwowski, M.; Militký, Jiří

    2014-01-01

    Roč. 96, č. 2012 (2014), s. 57-69 ISSN 0003-8008 R&D Projects: GA ČR(CZ) GAP405/10/1588; GA ČR GA13-24707S Institutional support: RVO:67985912 Keywords : Celts * Austria * coins * Late La Tène * brooches Subject RIV: AC - Archeology, Anthropology, Ethnology

  10. Vorrichtung und Verfahren zum Bestimmen einer genutzten Uebertragungskapazitaet eines Basisstationssendeempfaengers

    OpenAIRE

    Ulbricht, G.; Seegerer, G.

    2007-01-01

    EP 2031780 A2 UPAB: 20090327 NOVELTY - The device (100) has a receiver (110) for receiving a transmission signal, and a detector (120) for examining a set of used transmission channels from the transmission signal. A calculation unit (130) calculates the used transmission capacity based on a result of the examination. The detector is designed to examine the usage of the used transmission channels independent of transmitted date in the transmission channels. The receiver exhibits a directional...

  11. Schaltung und Verfahren zum Verarbeiten einer Speisespannung mit Spannungsspitzen

    OpenAIRE

    Hackner, M.; Ernst, R.; Hohe, H.

    2005-01-01

    WO2005022748 A UPAB: 20050506 NOVELTY - The circuit has a first capacitance (43) between first and second (input) nodes (41,42), a second capacitance (46) between third and fourth (output) nodes (44,45) and a controllable resistance (48) between the first and third nodes with a controller (49) that controls a first high resistance value if the input voltage is less than a desired value, a second lower resistance if it is above the desired value and a third low resistance so that the first and...

  12. Von der Druckerei zum Weblog Medienarbeit in einer Freinetklasse

    Directory of Open Access Journals (Sweden)

    Eva Neureiter

    2011-09-01

    Full Text Available Eine Freinet-Pädagogin erzählt. Wir Freinet-PädagogInnen werden immer wieder gefragt: „Freinet, das ist doch das mit der Druckerei.“ Manches Mal kommt auch ein „Ah, das habe ich auch schon mal gemacht!“ dazu. Celestin und Elise Freinet druckten mit ihren SchülerInnen eigene Bücher, damals vor heute rund 90 Jahren war das Drucken die einzige Möglichkeit, Inhalte zu vervielfältigen. In den Gesprächen über Freinetpädagogik und die Druckerei muss ich dann immer peinlich betreten gestehen, dass ich schon seit Jahren nicht mehr mit der Letterndruckerei und den Schulkindern gedruckt habe und die Druckerei nach dem letzten Lehrerinnen-Seminar wieder gut verpackt in den Kasten gewandert ist.Von unseren Korrespondenzpartner-Klassen in der Schweiz bekommen wir immer so schön gedruckte Texte.Nur wir schaffen es leider nie „zurückzudrucken“.

  13. Physik im 21. Jahrhundert Essays zum Stand der Physik

    CERN Document Server

    Röss, Dieter

    2011-01-01

    Physik ist eine höchst lebendige Wissenschaft! Einmal gewonnene Grundlagen-Erkenntnisse lassen sich auf unübersehbar viele Anwendungsbereiche anwenden. Experimentell gesichertes Detailwissen wächst heute in wenigen Dekaden lawinenartig in eine Größenordnung, die selbst für den Fachmann im Ganzen nicht mehr überschaubar ist. Dieses Werk wählt einen neuen Zugang: Beschränkung auf wenige, exemplarische Teilgebiete der modernen Physik bei Darstellung ihrer Zusammenhänge in aller Tiefe. Verfasser der Beiträge sind herausragende Wissenschaftler mit großer Lebenserfahrung, die dem Leser in ihrem Fachgebiet Zusammenhänge erschließen und Ausblicke in zukünftige Möglichkeiten eröffnen. Mit ihrer in langjähriger Lehrtätigkeit gesammelten Erfahrung formulieren sie das in einem reichen Forscherleben gesammeltes Wissen ohne Abstriche an den Erkenntniswert so, dass es von einer elementaren Basis aus zugänglich ist.

  14. From manufacturer to service provider; Vom Produzenten zum Dienstleister

    Energy Technology Data Exchange (ETDEWEB)

    Luczak, H. (ed.)

    2004-07-01

    Shrinking time-to-market windows are leading to increasingly tight timeframes available for the planning and realization of factories. At the same time, industrial enterprises as clients for factory planning services may at increasingly later stages specify their requirements on the construction of their new factories or the renovation/conversion of existing ones. This state of affairs generates a series of problems such as growing numbers of alterations and thus interruptions in the factory planning process. In order to avoid this happening, the project described in the following included the drawing up of instruments for planning-service providers and the identification of success factors for optimized work scheduling. (orig/GL) [German] Als Folge von tiefgreifenden Veraenderungsprozessen der volkswirtschaftlichen Strukturen nimmt die Beschaeftigung im Bereich der Produktion und der Verarbeitung kontinuierlich ab waehrend gleichzeitig eine stetige Ausweitung des Dienstleistungssektors zu verzeichnen ist. Auf der gesellschaftlichen Ebene wird dieser s.g. Prozess der Tertiarisierung vielfach diskutiert, im betrieblichen Kontext jedoch bislang noch sehr unzureichend durch empirisch-fundierte Modelle, Konzepte, Vorgehensweisen, Methoden, Erfahrungen, Best Practice und Erfolgsfaktoren hinterlegt und exemplarisch dargestellt. Durch die im Rahmen des Verbundvorhabens MoveOn generierten Forschungsergebnisse konnte diese Luecke durch die Entwicklung und Erprobung eines Modells der betrieblichen Tertiarisierung sowie eines Methoden- und Erfahrungsinstrumentariums zur Unterstuetzung und Begleitung der Entwicklung von Betrieben zu Unternehmen mit einer ausgepraegten Dienstleistungsorientierung und Dienstleistungsmentalitaet geschlossen werden. (orig.)

  15. Zum Bau und histologischen Terminologie von Laubmoosstämmchen

    OpenAIRE

    Frahm, Jan-Peter; Müller, Rolf-Dieter

    2012-01-01

    Es wird ein historischer Abriss der Geschichte der anatomischen Forschung an Moosen gegeben, der Aufbau von Laubmoosstämmchen skizziert und speziell die unterschiedliche Terminologie der Gewebetypen diskutiert. Der weit verbreitete Ausdruck Epidermis kann nicht auf Moose angewandt werden, weil die äußerste Schicht des Stämmchens nicht die Definiton des Begriffes erfüllt, verdickt und längsgestreckt ist. Sie gehört zur äußeren Sklerodermis. Längsgestreckt ist auch das sog. Parenchym oder Mark...

  16. Data of the transportation sector; Daten zum Verkehr

    Energy Technology Data Exchange (ETDEWEB)

    Kolodziej, Andrea

    2009-07-01

    Sustainable mobility and transportation involves many different decisions to be made by individuals and by policy in general. This requires high-quality information and a reliable and comprehensive data base. This brochure provides an information and data base that structures trends in transportation and the resulting environmental effects on humans and the environment with the help of tables, graphs and illustrative examples to make it understandable and readable. It informs on the traffic situation and environmental situation in Germany, identifies problems and provides orientation for sustainable mobility. (orig.)

  17. Zum Vorkommen von Kalkglimmern (Margarit, Cintonit) in den Schweizer Alpen

    NARCIS (Netherlands)

    Niggli, E.

    1955-01-01

    In einem ersten Abschnitt stellt der Verfasser die ihm bekannten Literaturstellen zusammen. Im zweiten Abschnitt werden eigene Untersuchungen beschrieben, die als vorläufiges Resultat ergaben, dass Clintonit in den Schweizer Alpen bislang nicht einwandfrei nachgewiesen ist, dass aber Margarit ein

  18. Yes and no to grid expansion.; Jein zum Netzausbau.

    Energy Technology Data Exchange (ETDEWEB)

    Huebner, Gundula; Pohl, Johannes [Halle-Wittenberg Univ. (Germany). Inst. fuer Psychologie

    2011-09-15

    The construction of new power plants using renewable energy sources necessitates expansion of power transmission grids. Everyone is in agreement about that, but there is disagreement about the details.

  19. Untersuchungen zum atmosphärenchemischen Abbau langkettiger Aldehyde

    OpenAIRE

    Plagens, Heike

    2001-01-01

    In dieser Arbeit wurden die bimolekularen Geschwindigkeitskonstanten für die Reaktionen von Hexanal, Heptanal, Oktanal und Nonanal mit OH and Cl Radikalen bei (298 ± 2) K und (1000 ± 20) mbar experimentell bestimmt. Ebenso wurde die Chlorgeschwindigkeitskonstante für Butanal gemessen. Die Werte sind (in Einheiten von cm3 Molekül-1 s-1) in Tabelle 1 zusammengefaßt. Tabelle 1: Aldehyde kOH kCl Butanal - (2,21 ± 0,16) · 10-10 Hexan...

  20. Verfahren und Vorrichtung zum kontinuierlichen laserinduzierten Beschichten von Endlosfaserbuendeln

    OpenAIRE

    Hopfe, V.; Tehel, A.; Leonhardt, G.

    2001-01-01

    The invention relates to a process and a device for the laser-stimulated coating of continuous fibre bundles from the gas phase permitting the application of the necessary coatings to carbon, graphite or silicon carbide fibres required for the production of preferably metal or ceramic matrix composite materials in continuous operation. According to the invention, the fibre bundles are spread evenly to form a fibre strip, transported through a reaction zone closed off by gas locks and irradiat...

  1. Zum Wissenschaftsverständnis der modernen Evolutionsbiologie

    Science.gov (United States)

    Sommer, Ralf J.

    Die moderne Evolutionsbiologie hat ihren Ursprung in den Arbeiten von Charles Darwin und Alfred Wallace (Darwin 1963). Der gemeinsame Ausgangspunkt des Evolutionsgedanken ist dabei die Beobachtung, dass die biologische Welt nicht konstant ist. Biologische Systeme und alle darin lebenden Organismen unterliegen über längere Zeiträume hinweg einer stetigen Veränderung. Diese grundlegende Eigenschaft biologischer Systeme macht die Biologie zu einer historischen Wissenschaft und stellt einen wichtigen Gegensatz zu großen Teilen der Physik dar. Obwohl die Aussage von der Veränderlichkeit der Arten heute trivial klingt, war sie im 19. Jahrhundert eine Revolution, da die Konstanz der Arten und der Welt eine vorherrschende Stellung im damaligen Weltbild hatte (Amundson 2005).

  2. Konzept zum Bestimmen eines Messwerts an einem Bauelement

    OpenAIRE

    Huppertz, J.

    2007-01-01

    US 20090134330 A1 UPAB: 20090604 NOVELTY - The device has a reader (8) to determine the measurement value e.g. current while supplying the electric power to the sensor. A controller (10) determines the power supplied by the reader. A compensator (152) corrects the measurement value determined by the reader using the power determined by the controller so as to achieve a corrected measurement value. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for method of determining measurement va...

  3. Mikro-Elektro-Mechanisches System und Verfahren zum Herstellen desselben

    OpenAIRE

    Lisec, Thomas; Stoppel, Fabian

    2015-01-01

    A microelectromechanical system comprises a deflectable actuator plate and a stop surface. An integral piezoelectric functional layer of the deflectable actuator plate is formed over an area (APS) of the actuator plate. The deflectable actuator plate is designed to implement a concave curvature in at least one driven or non-driven state, wherein the stop surface is arranged in a manner facing a concave side of the deflectable actuator plate defined by the concave curvature. The deflectable ac...

  4. Zum Ausfall von Ajin im Ägyptischen

    Directory of Open Access Journals (Sweden)

    Stefan Bojowald

    2014-10-01

    Full Text Available In this article, the Egyptian loss of „a“ is scrutinized closely. The phenomenon has so far been discussed only sporadically. The material is enlarged in here by several examples. As a result, it is shown that the mechanism has occurred at all possible positions in the word.

  5. Industriebroschüren zum Buch "Doing Business in Mexico"

    OpenAIRE

    Perales, MonicaC.; Zimmermann, Thomas A.

    2002-01-01

    St. Gallen: SIAW-HSG / Zürich: Lateinamerikanische Handelskammer in der Schweiz; Selling High-Quality Consumer Goods to Mexico (Download); Tools (Download); Machine Tools (Download) Pharmaceutical Products (Download); Medical and Surgical Equipment (Download); Measuring Technology and Quality Control (Download)

  6. Zum Begriff der kommunikativen function in der Linguistik

    Directory of Open Access Journals (Sweden)

    Stojan Bračič

    1987-12-01

    Full Text Available In diesem Artikel soli der Funktionsbegriff in der Linguistik diskutiert  werden, insbesondere der Begr'iff der kotnmunikativen Funktion. Es geht· nur um eine allge­ meine Behandlung  von Charakteristiken des Begriffs kommunikative Funktion. Am Anfang  wird eine Rdhe bekannter und doch recht miterschiedlicher Bedeutungsin­ terpretationert des Funktionsbegriffs in der Linguistik  übersichtlich angeführt. Das zweite Unterkapitel versucht  es, sich mit verschiedenen  Gesichtspunkteri der  nach Wilhelm SCHMIDT definierten  kommunikativen Funktion auseinanderzusetzen: u. a. mii ihrer Verwurzelung  in der funktional  korrimunikativen Sprachbesc4reibung, mit dem  Unterscheiden  von kommunikativen Funktionen auf  verschiedenen  Ebe­ nen (kommunikative Funktion des Textes,  kommunikative Funktion der  Aus­ drucksmittel, kommunikative Funktion der Sprache  bzw. des Sprachsystems, fer­ nei: zieht es eine hypothetisch  annehmbare rezeptive Komponente der kommunikati­ ven Funktion heran  und macht schließlich den Versuch einer Distinktion zwischen direkter  (unmittelbarer ud indirekter  (mittelbarer Ausprägung einzelner koriimu­ nikativer Funktionert. Es wird auch auf die Funktion verwiesen, die der Text für den Rezipienten  hat.  Der Abschluß bringt zusammenfassend die wesentlichen Erkennt­ nisse dieses Beitrags.

  7. Untersuchungen zum Fettsäurestoffwechsel bei koronarer Herzkrankheit

    OpenAIRE

    Richter, Wolf-Stefan

    2001-01-01

    Die nicht-invasive bildgebende Diagnostik hat bei koronarer Herzkrankheit einen wichtigen Stellenwert für die Diagnosestellung und Therapieplanung. In diesem Zusammenhang liefern nuklearmedizinische Verfahren wichtige Daten zur Gewebsperfusion und erlauben die bildliche Darstellung und Quantifizierung relevanter Details des kardiomyozytären Stoffwechsels. Die quantitativ bedeutendste Methode der nuklearmedizinischen Herzdiagnostik ist die Perfusionsszintigraphie mit Tl-201 oder einem der Tc-9...

  8. Biological indication of nitric oxides; Zum bioindikativen Nachweis von Stickoxiden

    Energy Technology Data Exchange (ETDEWEB)

    Belotti, E.; Kaemmerer, D.; Mangold, U.; Tempes, D.; Arndt, U.

    1992-12-31

    The authors demonstrate the need for a nitrogen oxide bio-indicator and suggest to use nitrate reductase activity in exposed plant leaves to be established in vivo as the action criterium. Studies on the suitability of different plants and cultivation conditions are presented. Their results are taken to show that large-leaved plants like sunflower or tomato grown with ammonia as the only nitrogen source are best suited for bio-indication of nitric oxides. (orig.) [Deutsch] Der Beitrag zeigt die Notwendigkeit eines Bioindikators fuer Stickoxide auf und schlaegt als Wirkungskriterium die Nitratreduktase-Aktivitaet in den Blaettern exponierter Pflanzen, ermittelt mit der in-vivo-Methode, vor. Untersuchungen zur Eignung verschiedener Pflanzen und Anzuchtbedingungen werden vorgestellt. Aus ihnen ist abzuleiten, dass mit Ammonium als einziger Stickstoffquelle angezogene grossblaettrige Kulturpflanzen, etwa Sonnenblume oder Tomate, am ehesten fuer den bioindikativen Nachweis von Stickoxiden geeignet sind. (orig.)

  9. Simulationsexperimente zum Ausbreitungsverhalten von Kernschmelzen: KATS-8 bis KATS-17

    International Nuclear Information System (INIS)

    Eppinger, B; Fieg, G.; Massier, H.; Schuetz, W.; Stegmaier, U.; Stern, G.

    2001-03-01

    In future Light Water Reactors special devices (core catchers) might be required to prevent containment failure by basement erosion after reactor pressure vessel meltthrough during a core meltdown accident. Quick freezing of the molten core masses is desirable to reduce release of radioactivity. Several concepts of core catcher devices have been proposed based on the spreading of corium melt onto flat surfaces with subsequent water cooling. Therefore, a series of experiments to investigate high temperature melt spreading on flat surfaces has been carried out using alumina-iron thermite melts as a simulant. The oxidic thermite melt is conditioned by adding other oxides to simulate a realistic corium melt as close as possible. Spreading of oxidic and metallic melts have been performed in one- and two-dimensional geometry. Substrates were inert ceramical layer, dry concrete and concrete with a water layer of several millimeters. The influence of a shallow water layer on the surface onto the spreading behaviour has also been studied. (orig.) [de

  10. Unsichtbar. Meditation zum Lukasevangelium 19,1-10

    DEFF Research Database (Denmark)

    Nielsen, Kirsten Busch

    2008-01-01

    En meditation over Lukasevangeliet 19,1-10 (Zakæus) med temaet usynlighed som omdrejningspunkt. Udgivelsesdato: 2007......En meditation over Lukasevangeliet 19,1-10 (Zakæus) med temaet usynlighed som omdrejningspunkt. Udgivelsesdato: 2007...

  11. Zum Stand und zu den Perspek-tiven der allgemeinsprachlichen ...

    African Journals Online (AJOL)

    Nach einer kurzen Übersicht über die allgemeinsprachlichen zwei-sprachigen Wörterbücher mit Deutsch und Slowenisch werden folgende Wörterbücher näher untersucht: Plet, DebN, DebS, PonsN und PonsS. Im ersten Teil der Wörterbuchanalyse werden der Benutzerbezug, die Wörterbuchbasis, die primär gebuchte ...

  12. Zum Stand der Angewandten Historischen Geographie in den Niederlanden

    NARCIS (Netherlands)

    Vervloet, J.A.J.

    1994-01-01

    Applied historical geography flourishes in the Netherlands at Wageningen. The author explains ideas on this subject and examines eight parts of it from the Netherlands point of view: the need to explain the cultural landscape; to explain the relationship between basic and applied study; work in

  13. Validation of computer codes and modelling methods for giving proof of nuclear safety of transport and storage of spent VVER-type nuclear fuels. Pt. 2. Criticality safety during transport and storage of spent VVER fuel elements. Final report; Einschaetzung von Rechenprogrammen und Methoden zum Nachweis der nuklearen Sicherheit bei Transport und Lagerung von WWER-Kernbrennstoffen. T. 2. Kritikalitaetssicherheit bei Transport und Lagerung von WWER-Brennelementen. Abschlussbericht

    Energy Technology Data Exchange (ETDEWEB)

    Buechse, H.; Langowski, A.; Lein, M.; Nagel, R.; Schmidt, H.; Stammel, M.

    1995-03-15

    The report gives the results of investigations on the validation of computer codes used to prove nuclear safety during transport and storage of spent VVER - fuel of NPP Greifswald and Rheinsberg. Characteristics of typical spent fuel (nuclide concentration, neutron source strength, gamma spectrum, decay heat) - calculated with several codes - and dose rates (e.g. in the surrounding of a loaded spent fuel cask) - based on the different source terms - are presented. Differences and their possible reasons are discussed. The results show that despite the differences in the source terms all relevant health physics requirements are met for all cases of source term. The validation of the criticality code OMEGA was established by calculation of appr. 200 critical experiments of LWR fuel, including VVER fuel rod arrangements. The mean error of the effective multiplication factor k{sub eff} is -0,01 compared to the experiment for this area of applicability. Thus, the OMEGA error of 2% assumed in earlier works has turned out to be sufficiently conservative. (orig.) [Deutsch] Der Bericht enthaelt die Ergebnisse von Untersuchungen zur Validierung von Rechenprogrammen, welche zum Nachweis der nukelaren Sicherheit bei Transport und Lagerung von WWER-Kernbrennstoff der KKW Greifswald und Rheinsberg eingesetzt wurden. Es werden eine Charakteristik des abgebrannten Brennstoffs (Nuklidkonzentrationen, Neutronenquellstaerke, Gammaspektrum, Nachzerfallsleistung) - berechnet mit verschiedenen Programmen - und Ortsdosisleistungen (z.B. in der Umgebung eines Transportbehaelters) - basierend auf den verschiedenen Quelltermen - angegeben. Differenzen und Ursachen werden diskutiert. Die Ergebnisse zeigen, dass trotz der Differenzen in den Quelltermen alle strahlenschutztechnisch relevanten Aussagen unbeeinflusst bleiben. Fuer die Einschaetzung des Gueltigkeitsbereiches des Monte-Carlo-Programms OMEGA wurden ca. 200 kritische Experimente mit LWR-Brennstoff unter besonderer Beruecksichtigung

  14. Verfahren und Vorrichtung zum Erzeugen eines Fingerabdrucks eines Notenblattes und Verfahren und Vorrichtung zum Charakterisieren eines Notenblattes

    OpenAIRE

    Schmucker, M.; Irons, J.

    2005-01-01

    DE 10341311 A UPAB: 20050506 NOVELTY - Method for producing a digital fingerprint (16) of a music sheet or a music sheet section (11), whereby the fingerprint is based on the graphical form of the notes on the music sheet or music sheet section. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for the following:- (a) a device for generating a digital fingerprint of a music sheet segment; (b) a device for characterizing a music sheet and; a method for characterizing a music sheet. U...

  15. Part project 1. Methods and concepts of biological waste composting. Comparison - evaluation - recommendations; Teilbericht 1. Verfahren und Konzepte der Bioabfallkompostierung. Vergleich - Bewertung - Empfehlungen

    Energy Technology Data Exchange (ETDEWEB)

    Gronauer, A.; Helm, M.; Schoen, H. [Bayerische Landesanstalt fuer Landtechnik der Technischen Univ. Muenchen-Weihenstephan (Germany)

    1997-12-31

    Topics of this article are: composting of biological wastes; techniques, operation modes, regional concepts, engineering, hygienical, ecological, economical aspects. (SR) gardening plots. The project comprised three parts: Composting techniques, applications of compost in agriculture and gardening, and applications in landscaping. This volume comprises the summaries of the three part-projects. (orig./SR) [Deutsch] Das uebergeordnete Ziel des Weihenstephaner Verbundvorhabens bestand darin, fachliche Grundlagen und Entscheidungshilfen fuer den Bereich der Kompostierung und der Verwertung von biogenen Reststoffen, insbesondere der getrennt erfassten organischen Abfaelle aus den Haushaltungen (Bioabfall), zu schaffen. In diesem Rahmen sollen sowohl verschiedene Verfahren und Techniken der Kompostierung als auch regionale Konzepte hinsichtlich verfahrenstechnischer, hygienischer, oekologischer, oekonomischer und die Entsorgungssicherheit betreffender Aspekte untersucht und bewertet werden. (orig./SR)

  16. Particle reduction strategies - PAREST. Gridded European emission data for projection years 2010, 2015 and 2020 based on the IIASA GAINS NEC scenarios. Teilbericht

    Energy Technology Data Exchange (ETDEWEB)

    Gon, Hugo Denier van der; Visschedijk, Antoon; Brugh, Hans van den [TNO Earth, Environment and Life Sciences, Utrecht (Netherlands)

    2013-06-15

    Projected emissions for selected scenarios for the years 2010, 2015 and 2020 were obtained from the GAINS NEC scenario reports and distributed on a high resolution over Europe using the TNO gridding tools. These emission maps are available as model input in the PAREST project to model the contribution of Europe to air quality in Germany in 2010, 2015 and 2020 (see note Rainer Stern, May 2009). The scenarios have a significant influence on absolute emission levels for the countries that were covered by IIASA GAINS. This suggests that emission changes in countries were no scenarios were available (Armenia, Azerbaijan, Georgia) or where only a projection year baseline is available (all non-EU) may be subject to significant changes as well (but these are quite far from Germany). For future projects it is recommended to make simple and transparent scenarios for these other countries, as well as for International Shipping. The change in emissions from the base year 2005 to the projection year 2010 needs to be interpreted with care. This because some methodology differences between 2005 official emission data as used in the PAREST base year 2005 emission set and GAINS 2010 data exist. It is expected that the emission reduction steps towards 2020 are more realistic.

  17. Part project 1. Methods and concepts of biological waste composting. Comparison - evaluation - recommendations; Teilbericht 1. Verfahren und Konzepte der Bioabfallkompostierung. Vergleich - Bewertung - Empfehlungen

    Energy Technology Data Exchange (ETDEWEB)

    Gronauer, A; Helm, M; Schoen, H [Bayerische Landesanstalt fuer Landtechnik der Technischen Univ. Muenchen-Weihenstephan (Germany)

    1998-12-31

    Topics of this article are: composting of biological wastes; techniques, operation modes, regional concepts, engineering, hygienical, ecological, economical aspects. (SR) gardening plots. The project comprised three parts: Composting techniques, applications of compost in agriculture and gardening, and applications in landscaping. This volume comprises the summaries of the three part-projects. (orig./SR) [Deutsch] Das uebergeordnete Ziel des Weihenstephaner Verbundvorhabens bestand darin, fachliche Grundlagen und Entscheidungshilfen fuer den Bereich der Kompostierung und der Verwertung von biogenen Reststoffen, insbesondere der getrennt erfassten organischen Abfaelle aus den Haushaltungen (Bioabfall), zu schaffen. In diesem Rahmen sollen sowohl verschiedene Verfahren und Techniken der Kompostierung als auch regionale Konzepte hinsichtlich verfahrenstechnischer, hygienischer, oekologischer, oekonomischer und die Entsorgungssicherheit betreffender Aspekte untersucht und bewertet werden. (orig./SR)

  18. Sustainable prevention of resource conflicts. Raw materials supply and demand (Report 2); Rohstoffkonflikte nachhaltig vermeiden. Rohstoffe zwischen Angebot und Nachfrage (Teilbericht 2)

    Energy Technology Data Exchange (ETDEWEB)

    Taenzler, Dennis; Westerkamp, Meike [Adelphi Research, Berlin (Germany); Supersberger, Nikolaus; Ritthoff, Michael; Bleischwitz, Raimund [Wuppertal Institut (Germany)

    2011-04-15

    The demand for both energetic and non-energetic raw materials has been increasing continuously during the past few decades. Especially during the last few years, the threat of structural shortages of supply or availability came into focus. The discussion is highly controversial, especially in the case of petroleum. This sub-report presents an analysis of the supply situation of energetic and non-energetic raw materials, i.e. petroleum, coal and nuclear fuels on the one hand as well as iron and steel, chromium, nickel, cobalt, aluminium, magnesium, copper, platinum and platinum metals, industrial minerals, boron salts, phosphate, zirconium and zirconium oxide on the other hand. It is important to discuss also regional availability patterns in order to arrive at a regional picture of potential supply risks and resulting conflicts over raw materials as this is the best way to assess the danger of impending conflicts. (orig.)

  19. Sustainable prevention of resource conflicts. Conflict risks for access and use of raw materials (report 1); Rohstoffkonflikte nachhaltig vermeiden. Konfliktrisiken bei Zugang und Nutzung von Rohstoffen (Teilbericht 1)

    Energy Technology Data Exchange (ETDEWEB)

    Taenzler, Dennis; Westerkamp, Meike [Adelphi Research, Berlin (Germany); Supersberger, Nikolaus; Ritthoff, Michael; Bleischwitz, Raimund [Wuppertal Institut fuer Klima, Umwelt, Energie GmbH, Wuppertal (Germany)

    2011-04-15

    Inequalities of resources ownership and the consequences of the exploitation of non-renewable resources have always caused violent conflicts of varying intensity. The resulting interdependence between conflicts on the one hand and resources on the other hand - discussed here under the term of conflict-resources nexus - is complex and requires a detailed theoretical and conceptional assessment. The risks of conflict vary as a function of the constellations of actors and the existing political, economic and social boundary conditions. These risks are often globally linked and reflect the flow of resources between consumer countries, transit countries, and producer countries. Conflicts in producer countries may endanger the supply of raw materials to consumer countries. Whether the raw material is an energetic resource like natural gas, petroleum, or coal, or a non-energetic resource like coltane or copper: There are many who demand that Germany should adapt to stronger competition and shorter supply and should also be aware of the possibility of conflicts about raw materials. This part-report of the project 'Sustainable Prevention of Resource Conflicts' presents important theoretical and conceptional considerations on the risk of conflict in the raw materials sector. On this basis, further reports will present case studies, scenarios, and preventive strategies. (orig./RHM)

  20. Particle Reduction Strategies - PAREST. Traffic emission modelling. Model comparision and alternative scenarios. Sub-report; Strategien zur Verminderung der Feinstaubbelastung - PAREST. Verkehrsemissionsmodellierung. Modellvergleich und Alternative Szenarien. Teilbericht

    Energy Technology Data Exchange (ETDEWEB)

    Kugler, Ulrike; Theloke, Jochen [Stuttgart Univ. (Germany). Inst. fuer Energiewirtschaft und Rationelle Energieanwendung (IER); Joerss, Wolfram [Institut fuer Zukunftsstudien und Technologiebewertung gGmbH (IZT), Berlin (Germany)

    2013-06-15

    The modeling of the reference scenario and the various reduction scenarios in PAREST was based on the Central System of Emissions (CSE) (CSE, 2007). Emissions from road traffic were calculated by using the traffic emission model TREMOD (Knoerr et al., 2005) and fed into the CSE. The version TREMOD 4.17 has been used. The resulting emission levels in PAREST reference scenario were supplemented by the emission-reducing effect of the implementation of the future Euro 5 and 6 emission standards for cars and light commercial vehicles and Euro VI for heavy commercial vehicles in combination with the truck toll extension. [German] Die Modellierung des Referenzszenarios und der verschiedenen Minderungsszenarien in PAREST erfolgte auf Grundlage des Zentralen System Emissionen (ZSE) (ZSE, 2007). Emissionen aus dem Strassenverkehr wurden mit Hilfe des Verkehrsemissionsmodells TREMOD (Knoerr et al., 2005) berechnet und in das ZSE eingespeist. Dabei wurde die Version TREMOD 4.17 verwendet. Die daraus resultierenden Emissionsmengen wurden im PAREST-Referenzszenario um die emissionsmindernde Wirkung der zukuenftigen Implementierung der Abgasnormen Euro 5 und 6 fuer Pkw und leichte Nutzfahrzeuge sowie Euro VI fuer schwere Nutzfahrzeuge in Kombination einer Erweiterung der Lkw-Maut ergaenzt. Die Berechnung der Emissionen des Referenzszenarios wurde auf Grundlage des Inlandsprinzips sowie des Energiebilanzprinzips durchgefuehrt. Die auf dieser Grundlage berechneten Emissionen fuer das Basisjahr 2005 und fuer die Referenzjahre 2010, 2015 und 2020 unterscheiden sich teilweise erheblich von den mit Hilfe des Modells TREMOVE (dem von der EU Kommission verwendeten Modell fuer mobile Quellen) berechneten Emissionen.

  1. Illicit operation of industrial plant subject to licensing, or of other installations within the purview of the German Federal Emission Control Act (BImSchG), which have been shut down for protection against hazards (section 327, subsection 2, No. 1 Penal Code (StGB)); Das unerlaubte Betreiben von genehmigungsbeduerftigen Anlagen oder sonstigen Anlagen im Sinne des Bundes-Immissionsschutzgesetzes, deren Betrieb zum Schutz vor Gefahren untersagt worden ist (Paragraph 327 Abs.2 Nr.1 StGB)

    Energy Technology Data Exchange (ETDEWEB)

    Ocker, A.

    1995-12-31

    verwaltungsrechtlichen Fehlern auf das Strafrecht. Daneben werden die spezifischen Problempunkte des Para. 327 Abs. 2 Nr. 1 StGB beachtet, die eine starke verwaltungsrechtliche Auspraegung aufweisen. Hervorzuheben sind hier insbesondere die Ausfuehrungen zum Anlagenbegriff i.S.d. BImSchG. (orig./HSCH)

  2. The establishment of Catchment Management Agencies in South Africa with reference to the Flussgebietsgemeinschaft Elbe: Some practical considerations

    CSIR Research Space (South Africa)

    Meissner, Richard

    2016-10-01

    Full Text Available cause and effect constituted by causal mechanisms such as the drafting and promulgation of legislation. Governance is more complex and involves various feedback loops (e.g. Meissner and Jacobs 2014 ) in any gover- nance endeavour. Governance takes... are also linked to Treasury Regulations to ensure fi nancial viability and good gover- nance (DWA 2013 ). Catchment management agencies also have a mandate to develop a catchment management strategy. This strategy is a plan to “realise the protection...

  3. Small scale patches of suspended matter and phytoplankton in the Elbe river estuary, German Bight and tidal flats

    Energy Technology Data Exchange (ETDEWEB)

    Doerffer, R; Fischer, J; Stoessel, M; Brockmann, C [GKSS-Forschungszentrum Geesthacht GmbH, Geesthacht-Tesperhude (Germany, F.R.); Grassl, H [Max-Planck-Institut fuer Meteorologie, Hamburg (Germany, F.R.)

    1989-01-01

    Thematic mapper and ship data has been used to study small scale features in coastal waters of the North Sea. Three independent pieces of informations from all 7 TM channels were found with factor analysis: suspended matter concentration, atmospheric scattering and sea surface temperature. Near surface suspended matter concentrations may be detected within a factor of 2. For the required atmospheric correction the signal-to-noise ratio of the channels 5 and 7 has to be improved by averaging over 25 x 25 pixels. Thus TM allows to monitor aerosol optical depth and aerosol type over cloudfree water surfaces. Sea surface temperature is retrievable with an absolute accuracy of 1.0 K as long as radiosonde data are available for the correction of atmospheric effects, while relative temperature variations of 0.5 K are detectable. The patchiness of suspended matter and its relation to underwater topography was analysed with auto- and crosscorrelation: horizontal lengths, where the suspended matter concentration of single pixels are significantly correlated either with each another or with water depth, are < 800 m. (orig.).

  4. Meie aja kangelased Taj stiilis / Rohit Deshpandé, Anjali Raina ; tõlkinud Elbe Kuldmäe

    Index Scriptorium Estoniae

    Deshpandé, Rohit

    2012-01-01

    India hotelliketi Taj Grupp pühendunud töötajatest: personali otsimisest, palkamisest, koolitamisest ja tunnustamisest. Taj Mumbai hotelli teenindajate tegutsemisest 6. nov. 2008. a. terrorirünnaku ajal

  5. Potential geo-ecological impacts of the proposed Danube–Oder–Elbe Canal on alluvial landscapes in the Czech Republic

    Czech Academy of Sciences Publication Activity Database

    Machar, I.; Kirchner, Karel; Pechanec, V.; Brus, J.; Kiliánová, H.; Šálek, L.; Buček, A.

    2015-01-01

    Roč. 23, č. 2 (2015), s. 38-46 ISSN 1210-8812 Institutional support: RVO:68145535 Keywords : Geo-ecological assessment * hydrological impact * DOE Canal * river floodplain * Czech Republic Subject RIV: DO - Wilderness Conservation Impact factor: 1.093, year: 2015 http://www.geonika.cz/CZ/CZresearch/CZMgrArchive.html

  6. The parasite community of round goby Neogobius melanostomus (Pallas, 1814) (Actinopterygii: Gobiidae) newly introduced into the upper Elbe

    Czech Academy of Sciences Publication Activity Database

    Kvach, Yuriy; Ondračková, Markéta; Janáč, Michal; Jurajda, Pavel

    2017-01-01

    Roč. 418, April (2017), č. článku 19. ISSN 1961-9502 R&D Projects: GA ČR(CZ) GBP505/12/G112 Institutional support: RVO:68081766 Keywords : enemy release hypothesis * Neogobius melanostomus * North Sea basin * parasite spillback * Pomphorhynchus tereticollis Subject RIV: EG - Zoology OBOR OECD: Marine biology, freshwater biology, limnology Impact factor: 1.217, year: 2016

  7. Large-scale assessment of flood risk and the effects of mitigation measures along the Elbe River

    NARCIS (Netherlands)

    de Kok, Jean-Luc; Grossmann, M.

    2010-01-01

    The downstream effects of flood risk mitigation measures and the necessity to develop flood risk management strategies that are effective on a basin scale call for a flood risk assessment methodology that can be applied at the scale of a large river. We present an example of a rapid flood risk

  8. D IE H EID ELB ER G SE KATEG ISM USAS KERKLIK E SIM BO O L ...

    African Journals Online (AJOL)

    Test

    maal en die tweede oor die Uitverkiesing. W at die Heidelbergse Kategismus aanbetref, dit is eers geleidelik n dertigtal jare na die ontstaan van die Nederlandse Geloofsbelydenis as kerklike simboliese geskrif beskou. Dit bevat nie leerstellings wat. 3) In Holland het die Chr. Gereformeerde Kerk meermale 'n handboek ...

  9. 800 ettevõtlusõpilast ootab rahvusvaheline eksam / Elbe Metsatalu ; kommenteerinud Marge Käis, Maris Lutsar

    Index Scriptorium Estoniae

    Metsatalu, Elbe

    2016-01-01

    Õpilasfirmades ettevõtlusteadmisi ja -kogemusi omandavad õpilased saavad sooritada rahvusvahelise ettevõtluseksami. Edukalt läbinuile väljastab Junior Achievement Europe rahvusvahelise ettevõtlusteadmiste tunnistuse - Entrepreneurial Skill Pass’i

  10. Equilibrium sampling of polychlorinated biphenyls in River Elbe sediments – Linking bioaccumulation in fish to sediment contamination

    DEFF Research Database (Denmark)

    Schäfer, Sabine; Antoni, Catherine; Möhlenkamp, Christel

    2015-01-01

    Equilibrium sampling can be applied to measure freely dissolved concentrations (cfree) of hydrophobic organic chemicals (HOCs) that are considered effective concentrations for diffusive uptake and partitioning. It can also yield concentrations in lipids at thermodynamic equilibrium...... with the sediment (Clip⇔sed) by multiplying concentrations in the equilibrium sampling polymer with lipid to polymer partition coefficients. We have applied silicone coated glass jars for equilibrium sampling of seven ‘indicator’ polychlorinated biphenyls (PCBs) in sediment samples from ten locations along...... bioaccumulation and the thermodynamic potential of sediment-associated HOCs for partitioning into lipids. This novel approach gives clearer and more consistent results compared to conventional approaches that are based on total concentrations in sediment and biota-sediment accumulation factors. We propose...

  11. Materialienbände zum Buch Mikroelektronik im Umweltschutz. Ergebnisse der Studie "Beitrag der Mikroelektronik zum Umweltschutz". In 6 Bänden

    OpenAIRE

    Angerer, G.; Hiessl, H.

    1991-01-01

    An effective and realizable environmental policy is dependent not only on the responsible behavior of each individual, but also on technological innovations. The study shows how the use of microelectronics supports this innovation process. The supplements show comprehensively the twenty-five areas of application for environmental microelectronics were analysed, including twelve manufacturing industries, combustion plants, industrial waste incineration, road traffic, household machines, agricu...

  12. Intermedialität als Grundsatzdiskussion. Zum Sammelband Sprechen über Bilder. Sprechen in Bildern: Studien zum Wechselverhältnis von Bild und Sprache

    Directory of Open Access Journals (Sweden)

    Angela Oster

    2016-01-01

    Full Text Available Der Sammelband Sprechen über Bilder. Sprechen in Bildern bietet mehr als nur einen weiteren Beitrag zur Intermedialität. Er erforscht anlässlich des interartialen Austauschs zwischen Bild unf Text die Modi der Wissenschaft und versucht, diesbezüglich neue Impulse zu geben. Methodisch wird dabei die Rezeptionsästhetik favorisiert.

  13. Aufforderung zum Kampf. Geschlechterkonstruktionen und Antisemitismus zum Tanzen bringen! A Call to Arms. Bringing Gender Constructions and Anti-Semitism to Dance!

    Directory of Open Access Journals (Sweden)

    Iris Homann

    2006-07-01

    Full Text Available Der Band Antisemitismus und Geschlecht der Gruppe A.G.Gender-Killer versammelt Untersuchungen über die Bedeutung der Kategorie Geschlecht in antisemitischen Diskursen seit dem 19. Jahrhundert. Ihnen gemeinsam ist die These einer konstitutiven Verknüpfung von Antisemitismus und Geschlechterkonstruktionen. Von der Notwendigkeit eines antifaschistischen gesellschaftlichen Engagements ausgehend, versuchen die Beiträger/-innen einen Brückenschlag zwischen Universität und Politik, Theorie und Praxis. Ihre Ergebnisse belegen die Abrufbarkeit und damit auch die Wirkungsmacht antisemitischer Sexualphantasien und Geschlechterbilder bis heute.The volume Anti-Semitism and Gender (Antisemitismus und Geschlecht published by the group A.G. Gender-Killer collects studies about the meaning of the category of gender in anti-Semitic discourses since the nineteenth century. They share the thesis that sees a constitutive connection between anti-Semitism and gender constructs. The studies attempt to bridge university and politics, theory and practice by beginning with the necessity of an anti-fascist engagement in society. Their results prove that anti-Semitic sexual fantasies and gender images are both immediately recallable and potent today.

  14. Sustainable prevention of resource conflicts. Risky raw materials for the future? Case study and scenarios lithium in Bolivia (Report 3.3); Rohstoffkonflikte nachhaltig vermeiden. Risikoreiche Zukunftsrohstoffe? Fallstudie und Szenarien zu Lithium in Bolivien (Teilbericht 3.3)

    Energy Technology Data Exchange (ETDEWEB)

    Taenzler, Dennis; Westerkamp, Meike [Adelphi Research, Berlin (Germany); Supersberger, Nikolaus; Ritthoff, Michael; Bleischwitz, Raimund [Wuppertal Institut (Germany)

    2011-04-15

    In Bolivia's western highlands, at an altitude of some 3,600 metres, lie the largest identified reserves of lithium in the world. According to the latest estimates by the United States Geological Survey (USGS), beneath the 10,000 square kilometres of what are the world's most extensive salt flats, the Salar de Uyuni, there are some 6 to 9 million tonnes of lithium (Roskill 2008 nach Angerer, Marscheider-Weidemann, Wendl et al. 2009, Jaskula 2010a). Exploitation of those reserves has not yet begun, though the Bolivian government has constructed a small 6 million US Dollar pilot plant on the edge of the Salar de Uyuni, and has some ambitious plans: ''Lithium is the hope not just for Bolivia but for all inhabitants of the planet'', stated Bolivia's President Evo Morales in February 2009 (Bajak/Valdez 2009). Bolivia is one of the poorest countries in Latin America. The production of lithium, and the revenues it can generate, represents a major development opportunity for the country. Lithium is a key constituent of lithium ion batteries. Already in widespread use in mobile phones, camcorders and laptops, they are also increasingly needed to power hybrid and electric vehicles, which is why many analysts regard lithium as one of the key raw materials in the move towards sustainable mobility in the post-oil era (National Research Council (U.S.) 2008, Angerer et al. 2009, Tahil 2007; Chameides 2009). As the demand for lithium rises and its importance grows, the question arises as to the risks and opportunities associated with it. The resource booms of the past did little to promote Bolivia's development and improve the standard of living of its population. Indeed, Bolivia has a long history of resource-related conflict and political instability. This report (3.3) therefore investigates the risks and opportunities associated with the establishment of industrial-scale lithium production in Bolivia. Its analysis follows on from reports 1 and 2, illustrating and expanding upon their results. Likewise, this empirical case study will feed into the proposed solutions and recommended action to be set out in reports 4 and 5. This report is divided into a case study and four scenarios. The case study serves as an analysis of the status quo. It sets out potential conflict risks and opportunities arising from the situation as it exists in 2010. The subsequent four scenarios depicted were devised in the course of a Scenario Workshop in conjunction with a group of experts. They make use of the case study depicting the status quo to set forth a range of potential trends through to the year 2030. The opportunities and risks are summarised both according to the structuring of the case study and broken down by the individual scenarios depicted. The conclusions draw together the findings from the case study and scenarios to present the main conflict risks arising in relation to the establishment of industrial-scale lithium production in Bolivia. (orig.)

  15. Effects of an enhanced promotion of renewable energies on the investment dynamics in a conventional power plant plant. Interim report; Auswirkung einer verstaerkten Foerderung erneuerbarer Energien auf die Investitionsdynamik im konventionellen Kraftwerkspark. Teilbericht

    Energy Technology Data Exchange (ETDEWEB)

    Harthan, Ralph Oliver; Seebach, Dominik [Oeko-Institut e.V. - Institut fuer Angewandte Oekologie, Berlin (Germany); Boettger, Diana; Bruckner, Thomas [Leipzig Univ. (Germany). Inst. fuer Infrastruktur und Ressourcenmanagement

    2012-03-26

    A core component of the German government's Energy Concept is the expansion of electricity production from renewable energies. The German government also decided to decommission or not reactivate eight nuclear power plants following the nuclear catastrophe in Fukushima. For the outstanding reactors in Germany it determined shorter remaining lifetimes. As a result electricity production in Germany is facing extensive transformation. The feed-in of renewable energies influence power plant dispatch and thereby also the electricity price. Since renewable energies are supported by a set price for their feed-in, their production occurs independently of demand with the result that the electricity price on the spot markets falls. Similarly the electricity price on the spot markets is lower in the case of the lifetime extension of nuclear power plants than without such an extension as a result of the low marginal costs of such plants. Moreover an increased feed-in of renewable energies or the lifetime extension of nuclear power plants leads to a lower electricity production in other conventional (fossil) power plants. This has an impact on the dispatch of power plants and the long-term development of the power plant fleet (arising from decommissioned plants and new investments). A lower electricity price, fewer operating hours for fossil power plants and a lifetime extension for nuclear power plants can lead to the profitable operation of fossil power plants no longer being possible and such plants being either decommissioned or mothballed. Similarly, comparatively higher electricity prices resulting from a quicker phase-out of nuclear energy can lead to an improvement in profitability and thereby also a reactivation of mothballed power plants or the retrofitting of fossil power plants. In this research project an iterative consideration of the short-term dispatch of power plants in a dispatch model and of the long-term decommissioning and investment effects in a power plant investment model is used to assess the effects of the integration of renewable energies against the background of the remaining lifetime of nuclear power plants. Furthermore different marketing channels for eco-electricity are discussed, including the associated economic effects and the different marketing options under the terms of the German Renewable Energy Sources Act (EEG).

  16. Sustainable prevention of resource conflicts. Risky raw materials for the future? Case study and scenarios lithium in Bolivia (Report 3.3); Rohstoffkonflikte nachhaltig vermeiden. Risikoreiche Zukunftsrohstoffe? Fallstudie und Szenarien zu Lithium in Bolivien (Teilbericht 3.3)

    Energy Technology Data Exchange (ETDEWEB)

    Taenzler, Dennis; Westerkamp, Meike [Adelphi Research, Berlin (Germany); Supersberger, Nikolaus; Ritthoff, Michael; Bleischwitz, Raimund [Wuppertal Institut (Germany)

    2011-04-15

    In Bolivia's western highlands, at an altitude of some 3,600 metres, lie the largest identified reserves of lithium in the world. According to the latest estimates by the United States Geological Survey (USGS), beneath the 10,000 square kilometres of what are the world's most extensive salt flats, the Salar de Uyuni, there are some 6 to 9 million tonnes of lithium (Roskill 2008 nach Angerer, Marscheider-Weidemann, Wendl et al. 2009, Jaskula 2010a). Exploitation of those reserves has not yet begun, though the Bolivian government has constructed a small 6 million US Dollar pilot plant on the edge of the Salar de Uyuni, and has some ambitious plans: ''Lithium is the hope not just for Bolivia but for all inhabitants of the planet'', stated Bolivia's President Evo Morales in February 2009 (Bajak/Valdez 2009). Bolivia is one of the poorest countries in Latin America. The production of lithium, and the revenues it can generate, represents a major development opportunity for the country. Lithium is a key constituent of lithium ion batteries. Already in widespread use in mobile phones, camcorders and laptops, they are also increasingly needed to power hybrid and electric vehicles, which is why many analysts regard lithium as one of the key raw materials in the move towards sustainable mobility in the post-oil era (National Research Council (U.S.) 2008, Angerer et al. 2009, Tahil 2007; Chameides 2009). As the demand for lithium rises and its importance grows, the question arises as to the risks and opportunities associated with it. The resource booms of the past did little to promote Bolivia's development and improve the standard of living of its population. Indeed, Bolivia has a long history of resource-related conflict and political instability. This report (3.3) therefore investigates the risks and opportunities associated with the establishment of industrial-scale lithium production in Bolivia. Its analysis follows on from reports 1 and 2, illustrating and expanding upon their results. Likewise, this empirical case study will feed into the proposed solutions and recommended action to be set out in reports 4 and 5. This report is divided into a case study and four scenarios. The case study serves as an analysis of the status quo. It sets out potential conflict risks and opportunities arising from the situation as it exists in 2010. The subsequent four scenarios depicted were devised in the course of a Scenario Workshop in conjunction with a group of experts. They make use of the case study depicting the status quo to set forth a range of potential trends through to the year 2030. The opportunities and risks are summarised both according to the structuring of the case study and broken down by the individual scenarios depicted. The conclusions draw together the findings from the case study and scenarios to present the main conflict risks arising in relation to the establishment of industrial-scale lithium production in Bolivia. (orig.)

  17. Particle Reduction Strategies - PAREST. PM10-cause analysis based on hypothetical emissions scenarios. Sub-report; Strategien zur Verminderung der Feinstaubbelastung - PAREST. PM10-Ursachenanalyse auf der Basis hypothetischer Emissionsszenarien. Teilbericht

    Energy Technology Data Exchange (ETDEWEB)

    Stern, Rainer [Freie Univ. Berlin (Germany). Inst. fuer Meteorologie, Troposphaerische Umweltforschung

    2013-06-15

    In this report, a PM10 cause analysis is presented, which provides an estimation of the extent to which the emitted substances from ten different source sectors are responsible for the calculated PM10 concentrations in Germany (PM = particulate matter). [German] In diesem Bericht wird eine PM10-Ursachenanalyse vorgestellt, die eine Abschaetzung liefert, in welchem Umfang die in Deutschland von den verschiedenen Verursachergruppen emittierten Stoffe fuer die in Deutschland berechneten PM10-Konzentrationen verantwortlich sind.

  18. Scenarios for an integrated sustainability policy - using the example of the ''Sustainable City 2030''. Vol. 2; Szenarien fuer eine integrierte Nachhaltigkeitspolitik - am Beispiel: Die nachhaltige Stadt 2030. Bd. 2. Teilbericht ''Kreislaufstadt 2030''

    Energy Technology Data Exchange (ETDEWEB)

    Verbuecheln, Maic; Grabow, Busso; Uttke, Angela; Schwausch, Mandy [Deutsches Inst. fuer Urbanistik (DiFu), Berlin (Germany); Gassner, Robert [Institut fuer Zukunftsstudien und Technologiebewertung gGmbH (IZT), Berlin (Germany)

    2013-04-15

    The partial report ''Recycling City 2030'' was prepared for the Federal Environment Agency (Dessau, Federal Republic of Germany) as a part of the project ''Scenarios for an integrated sustainability policy - the example of 'The Sustainable City 2030 '''. This partial report is based on research activities of the German Institute of Urban Affairs (Berlin, Federal Republic of Germany) and Institute for Futures Studies and Technology Assessment (Berlin, Federal Republic of Germany). The objectives of this partial report are: (1) Description of the challenges and trends in urban regions; (2) Recycling city and its importance in the current debate on sustainability; (3) Identification and optimization of existing cycle approaches in urban habitats; (4) Analysis of the actual state as well as designation of developments and constraints; (5) Discussion on the interface between the sectors; (6) Options for action for the interaction between the actors in interdisciplinary topics; (7) Outline of ways and perspectives of the implementation of the ''Recycling City 2030''.

  19. 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. Aufnahme aus der Bodenloesung und Translokation mit den Pflanzensaeften spielt - ausser fuer Phenanthren - kaum eine Rolle. Bei den untersuchten Moehren und Kartoffeln ist vorwiegend die Schale kontaminiert. Die Transferfaktoren der PCB sind durchweg hoeher als die der PAK. Es wird vermutet, dass dafuer der photolytische Abbau von PAK auf Blattoberflaechen verantwortlich ist. Des Weiteren gibt es Hinweise darauf, dass die Metabolisierung von PAK in Pflanzen schneller ablaeuft als die der PCB. (orig.)

  20. Sustainable prevention of resource conflicts. Case studies and scenarios for the Nabucco pipeline (report 3.1); Rohstoffkonflikte nachhaltig vermeiden. Fallstudie und Szenarien zur Nabucco-Pipeline (Teilbericht 3.1)

    Energy Technology Data Exchange (ETDEWEB)

    Taenzler, Dennis; Westerkamp, Meike [Adelphi Research, Berlin (Germany); Supersberger, Nikolaus; Ritthoff, Michael; Bleischwitz, Raimund [Wuppertal Institut (Germany)

    2011-04-15

    The controversial discussion over natural gas supply in Europe has been going on for several years now; it all started with the controversy between Russia, Europe's main supplier country, and Ukraine and Belorus. The wish to reduce the dependence on Russian imports resulted in several European projects. One of them is the so-called Nabucco pipeline, which will transport natural gas from the Caspian region to Western Europe without touching Russian territory. A comprehensive view of the case study and the scenarios derived from it shows that the supply and demand situation in the European Union will be the central element of all developments. The economic efficiency of the Nabucco pipeline will depend on the implementation of efficiency strategies within the EU. In case of peak gas production, it is difficult to see how the Nabucco pipeline will be affected; it will depend largely on the regions in which natural gas production will decline the most. Cooperative regimes may develop along the Nabucco pipeline if the pipeline is viewed not only as an economic project but also as an approach to getting many actors together with maximum benefit to all. For the EU itself, the Nabucco pipeline is an important instrument for reducing dependence on Russian natural gas. However, Nabucco will compete with the NordStream pipeline that is currently being laid through the Baltic Sea. The NordStream pipeline is contraproductive in that it increases dependence on Russian natural gas. At the same time, the existing energy partnership between the EU and Russia is to be deepened. In principle, the Nabucco pipeline is a relevant approach to avoiding possible supply and dependence conflicts on a transnational level. (orig./RHM)

  1. Pressure vessel failure at high internal pressure; Untersuchungen zum Versagen des Reaktordruckbehaelters unter hohem Innendruck

    Energy Technology Data Exchange (ETDEWEB)

    Laemmer, H.; Ritter, B.

    1995-08-01

    A RPV failure due to plastic instability was investigated using the ABAQUS finite element code together with a material model of thermal plasticity for large deformations. Not only rotational symmetric temperature distributions were studied, but also `hot spots`. Calculations show that merely by the depletion of strength of the material - even at internal wall temperatures well below the melting point of the fuel elements of about 2000/2400 C - the critical internal pressure can decrease to values smaller than the operational pressure of 16 Mpa. (orig.)

  2. Die Familiennamen des ostfriesischen Kreises Leer : sprachliche und geographisch-statistische Untersuchungen zum Namenbestand um 1940

    NARCIS (Netherlands)

    Ebeling, Rudolf Albert

    2008-01-01

    In deze studie wordt het in 1979 gepubliceerde familienanenregister van de Oostfriese 'Kreis’ Leer ( R. A. Ebeling: Familiennamen im Landkreis Leer um 1940) naamkundig gekarakteriseerd d.m.v. een beschrijving van het onomastisch specifieke van dat repertoire en een onderzoek naar de mogelijke

  3. Soft Power und Militär : eine Untersuchung zum Afghanistan-Einsatz der Bundeswehr

    OpenAIRE

    Kersten, Jan

    2013-01-01

    Soft Power ist zu einem einflussreichen Konzept avanciert – in der Politikwissenschaft, aber auch in der Politik selbst. Dabei bleibt es sowohl theoretisch als auch praktisch umstritten. In der Praxis wird das Konzept instrumentalisiert, um außenpolitisches Handeln von militärischem und wirtschaftlichem Druck positiv abzugrenzen. Unklar ist, wie Soft Power in militärischen Kontexten, in denen Hard Power im Vordergrund steht, funktionieren kann. Anhand des Afghanistan-Einsatzes der Bundeswehr ...

  4. Multi-utility services, the key to success; Mit Multi-Utility-Dienstleistungen zum Erfolg

    Energy Technology Data Exchange (ETDEWEB)

    Lowak, M. [MVV Energie AG, Mannheim (Germany). Bereich Energiedienstleistungen

    2002-04-01

    The article summarizes essential aspects of successful management strategies, including cross selling, of the Mannheim-based multi-utility enterprise MVV Energie AG, which developed a successful portfolio of innovative products and services. (orig./CB) [German] Aus ihrem Kerngeschaeft als Verteilerunternehmen hat die MVV Energie AG, Mannheim, ein umfassendes Portfolio innovativer Produkte und Dienstleistungen entwickelt. (orig./CB)

  5. Atypische Beschäftigungsverhältnisse – Einleitung zum Schwerpunktheft

    OpenAIRE

    Keller, Berndt; Nienhüser, Werner

    2014-01-01

    Zu den atypischen Beschaeftigungsverhaeltnissen zaehlen wir im Folgenden (im Sinne einer Nominaldefinition) Teilzeit, geringfuegige Beschaeftigung/Mini- und Midijobs, befristete Beschaeftigung, Leiharbeit, Werkvertraege sowie Solo-Selbststaendigkeit. Die dieses Schwerpunktheftes spiegeln sowohl die inhaltliche als auch die methodische Heterogenitaet der aktuellen Diskussion wider. Sie differenzieren und erweitern den Informationsstand ueber einzelne Formen und deren Folgen (vor allem von Mini...

  6. Overview of the Electricity Research Programme 2004; Elektrizitaet. Ueberblicksbericht zum Forschungsprogramm 2004

    Energy Technology Data Exchange (ETDEWEB)

    Brueniger, R.

    2005-07-01

    This publication of the Swiss Federal Office of Energy (SFOE) presents a review of the SFOE's Electricity Research Programme's main areas of activity in 2004. In the electricity transport and storage area, future energy networks, decentralised power generation and storage, energy flow optimisation, compressed air storage systems and corrosion in pipelines caused by alternating current are described. High-temperature superconductors and their potential in power transport and in electrical machines form another topic. In the information and communication technology area, optimised use of electrical energy is looked at, as used, for example, in set-top boxes and smart-home systems. Also, uninterruptible power supplies are looked at. As far as drives and electric motors are concerned, an industry convention is examined as is the optimal purchasing of drives. A functional prototype of an energy-saving motor is described, as are a high-efficiency, gearless drive. Further papers on projects in the compressed-air area are listed. In the devices area, the papers range from energy-efficient hotel mini-bars over water coolers through to optimal energy use in vending machines for cool drinks and refrigeration units in stores. Further topics include dehumidifiers, sewage sludge treatment and a study on the electromagnetic fields of energy-saving lamps. National and international co-operation is reviewed and various pilot and demonstration projects in the above-mentioned areas are briefly presented. The report is completed with a list of research and development projects and a list of pilot and demonstration work.

  7. Phytohormone balance in healthy and diseased conifers. Untersuchungen zum Hormonhaushalt gesunder und kranker Nadelbaeume

    Energy Technology Data Exchange (ETDEWEB)

    Frenzel, B.; Beuther, E.; Christmann, A.; Damsohn, W.; Flachmann, M.; Gepraegs, P.; Gueth, S.; Haas, K.; Huckriede, U.; Kettnaker, U.

    1987-12-01

    The symptoms of forest decline point to disturbances in the equilibrium of various hormones. Starting from reliably healthy trees extent and development of these deviations were examined in sick trees. This was at first done as to ethylene and abscisic acid, as well. Both these hormones display already in needles of healthy trees remarkable changes in their contents depending on age and ecological situation of the tree examined. This is camouflaged by other changes in sick trees, this being different from those changes, which are caused by strong SO/sub 2/-immissions. Since the same holds true for other plant-physiological and ultrastructural characteristics, it is concluded that the recent forest decline and damages caused by SO/sub 2/-immissions are different things. (orig.) With 86 figs., 137 refs.

  8. Survey about the climatic behaviour of mobile homes; Untersuchungen zum klimatischen Verhalten von Wohnmobilen

    Energy Technology Data Exchange (ETDEWEB)

    Leimer, H.P.; Stein, F. [Hochschule fuer Angewandte Wissenschaft und Kunst HAWK, Hildesheim (Germany). BBS Institut Forschungs- und Materialpruefinst. fuer Angewandte Bauphysik und Werkstoffe des Bauwesens

    2006-02-15

    Traveling with mobile homes gains more and more importance in the mobile world. Very dif-ferent regions are visited during any seasons. A basic premise is the maintenance of a comfortable climate in-side the vehicle. In the context of a research program the thermal and energetic behaviour of mobile homes and the thermal-hygric behaviour of the exterior building elements were investigated subject to the surrounding climate, the user's behaviour and the building elements. (orig.)

  9. Wie schreiben sprachschwache Kinder? Beitrag zum Zusammenhang zwischen explizitem und implizitem Sprachwissen

    OpenAIRE

    Schaller, Pascale

    2017-01-01

    Der Beitrag fokussiert den Zusammenhang zwischen sprachlich explizitem und implizitem Wissen in den Bereichen Wortschatz, Grammatik und Orthographie bei sprachschwachen Kindern. Er plädiert dafür, Schreiben als Sprachhandlung aufzufassen und neben dem Textprodukt den Schreibprozess und die Sprachwissensvoraussetzungen der Kinder als diagnostisch relevante Aspekte zu reflektieren. Anhand empirischer Analysen aus einer explorativen Studie wird aufgezeigt, dass sich das Verhältnis von explizitem...

  10. Ein Schlüsselproblem zum Verständnis des 2. Thessalonicherbriefs

    African Journals Online (AJOL)

    25. Sept. 2015 ... Die wichtigste Arbeit, die sich mit diesem umstrittenen und mysteriösen Begriff beschäftigt, und dabei auch eine ausführliche. Auslegungsgeschichte .... bislang wissenschaftlich vermessen worden ist. Denn damit lassen ... insofern bereits das κύριος in der Formulierung ἡ ἡμέρα τοῦ κυρίου (z.B. Apg 2:20; ...

  11. Anaerobic degradation of paunch and pig stomach contents. Untersuchungen zum anaeroben Abbauverhalten von Pansen- und Schweinemageninhalten

    Energy Technology Data Exchange (ETDEWEB)

    Tritt, W.P. (Bundesforschungsanstalt fuer Landwirtschaft, Braunschweig (Germany, F.R.). Inst. fuer Technologie)

    1989-11-01

    Slaughtering wastes amount to about 60 kg of paunch and 1 kg of pig stomach contents per animal. Each slaughterhouse is responsible for the disposal of these wastes. Anaerobic degradation is among the solutions suggested. It is a process developing gases, and reducing odors and volumes of wastes. Details are given on investigations assessing the methane yields expected, degradation characteristics, and the required amount of inoculants. (orig.).

  12. Zum Problem der Gattung des Seienden bei Marius Victorinus und im antiken Neuplatonismus

    Czech Academy of Sciences Publication Activity Database

    Němec, Václav

    2017-01-01

    Roč. 160, č. 2 (2017), s. 161-193 ISSN 0035-449X R&D Projects: GA ČR(CZ) GA14-35803S Institutional support: RVO:67985955 Keywords : Neo-Platonism * Marius Victorinus * genus of being Subject RIV: AA - Philosophy ; Religion OBOR OECD: Philosophy, History and Philosophy of science and technology

  13. From the Social Contract to a Social Contract Law - Vom Contrat Social zum Gesellschaftsvertragsrecht

    Directory of Open Access Journals (Sweden)

    Andreas Abegg

    2008-05-01

    Full Text Available Taking the viewpoint of the civil law tradition, which has traditionally assumed that the legitimacy of the administration is state-derived, this text recognises the constant decline of state sovereignty in modern times and consequently the increasing diffusion of the state into society. At the level of state theory, this reflects a shift from the great philosophical ‘social contract’ to many small legal contracts as its functional equivalent. Dealing with this phenomenon, administrative law needs to address the fundamental question of how law can sustainably support the unity of a society where the state administration and the various parts of society it has to govern are strange to each other and at the same time depending on mutual ad-hoc cooperation time and again.- Aus einer kontinentalen Sicht, gestützt auf die langen Erfahrungen mit einer staatlich angeleiteten Legitimation der Staatsverwaltung, erkennt diese Untersuchung den beständigen Niedergang staatlicher Souveränität in der Moderne und folglich die zunehmende Diffusion des Staates in die Gesellschaft. Auf der Ebene der Staatstheorie wird dies durch einen Wechsel vom großen philosophischen Sozialvertrag zu vielen einzelnen rechtlichen Verträgen als dessen funktionales Äquivalent gespiegelt. Mit diesem Phänomen erhält das Verwaltungsrecht eine grundsätzlich neue Perspektive: Es stellt sich die Frage, wie mit Recht die Einheit einer Gesellschaft hervorgebracht werden kann, in welcher die Staatsverwaltung und die von ihr zu regulierenden Sozialbereiche sich einerseits fremd geworden sind und doch andererseits auf wechselseitige Ad-hoc-Kooperationen immer wieder von Neuem angewiesen sind.

  14. Vom Contrat Social zum Gesellschaftsvertragsrecht / From the Social Contract to a Social Contract Law

    Directory of Open Access Journals (Sweden)

    Andreas Abegg

    2008-05-01

    Full Text Available Formen und Funktion des Verwaltungsvertrags in der fragmentierten Gesellschaft Aus einer kontinentalen Sicht, gestützt auf die langen Erfahrungen mit einer staatlich angeleiteten Legitimation der Staatsverwaltung, erkennt diese Untersuchung den beständigen Niedergang staatlicher Souveränität in der Moderne und folglich die zunehmende Diffusion des Staates in die Gesellschaft. Auf der Ebene der Staatstheorie wird dies durch einen Wechsel vom großen philosophischen Sozialvertrag zu vielen einzelnen rechtlichen Verträgen als dessen funktionales Äquivalent gespiegelt. Mit diesem Phänomen erhält das Verwaltungsrecht eine grundsätzlich neue Perspektive: Es stellt sich die Frage, wie mit Recht die Einheit einer Gesellschaft hervorgebracht werden kann, in welcher die Staatsverwaltung und die von ihr zu regulierenden Sozialbereiche sich einerseits fremd geworden sind und doch andererseits auf wechselseitige Ad-hoc-Kooperationen immer wieder von Neuem angewiesen sind. Forms and Function of Administrative Contracts in a Fragmented Society. Taking the viewpoint of the civil law tradition, which has traditionally assumed that the legitimacy of the administration is state-derived, this text recognises the constant decline of state sovereignty in modern times and consequently the increasing diffusion of the state into society. At the level of state theory, this reflects a shift from the great philosophical ‘social contract’ to many small legal contracts as its functional equivalent. Dealing with this phenomenon, administrative law needs to address the fundamental question of how law can sustainably support the unity of a society where the state administration and the various parts of society it has to govern are strange to each other and at the same time depending on mutual ad-hoc cooperation time and again.

  15. Die heiligen Propheten, eure Apostel und ich. Metatextuelle Studien zum zweiten Petrusbrief

    NARCIS (Netherlands)

    Ruf, M.G.

    2010-01-01

    Of all New Testament writings, the Second Letter of Peter bears the most explicit witness to the varied literary activity of Early Christianity and most expressly reflects on its use of Scripture as prophecy. The present dissertation applies itself to this metatextual character of the Second Letter

  16. Vorrichtung zum Aufnehmen und Abgeben von Stückgut an ein fahrerloses Transportfahrzeug

    OpenAIRE

    Schroer, W.

    2008-01-01

    The device (1) has comb-type bearing supporting bars (4) provided for passage of goods to be transported between rollers (9) of a running surface (2). An upper edge of the supporting bars is slightly higher than the running surface formed by the transport rollers. Stripping stoppers for the goods are provided in a driving direction behind the transport rollers. The supporting bars are designed in a raised or lowerable manner in a transport vehicle (3), where the supporting bars exhibit a fron...

  17. Thermal unimolecular decomposition of methanol. Zum thermischen unimolekularen Zerfall von Methanol

    Energy Technology Data Exchange (ETDEWEB)

    Spindler, K

    1979-01-01

    The thermal unimolecular decomposition of methanol and that of acetone (1B) were investigated experimentally after reflected shockwaves, by following up the OH and CH/sub 3/ absorption or the CH/sub 3/ and acetone absorption respectively. A computer simulation of the decomposition of methanol and the subsequent reactions was done. This gave velocity constants for some reactions, which are different from those that are found in the literature. The experimental investigation of the decomposition of acetone, from comparison of the results with the data in the literature, shows that the observations of CH/sub 3/ absorption are very suitable for obtaining velocity constants for decomposition reactions, where CH/sub 3/ radicals are formed in the first stage.

  18. Electricity research programme - Overview report on activities in 2005; Programm Elektrizitaet. Ueberblicksbericht zum Forschungsprogramm 2005

    Energy Technology Data Exchange (ETDEWEB)

    Brueniger, R.

    2006-07-01

    This overview-report for the Swiss Federal Office of Energy (SFOE) summarises the work done in 2005 in the various research areas covered by the Swiss Electricity Research programme. Work done in the programme's two main areas - technologies and efficient applications - is reviewed. In the technologies area, high-temperature superconductivity - and especially its use in power-generation facilities - is looked at, as are the topics of energy conversion and thermo-electric power generation. Further, energy storage using compressed-air is discussed. Power distribution and the use of controllable storage in the low-voltage mains is briefly commented on, as is distributed power generation. Information and communications technologies are reviewed, as is work done in the electrical drives area. Work in other areas summarised includes lighting and uninterruptible power-supplies. Co-operation with Swiss institutions and international organisations such as the IEA is reviewed. Implementation work in the pilot and demonstration area is commented on. This includes work in various areas ranging from set-top boxes through to the optimisation of compressed-air systems and electrical drives as well as codes of conduct and agreements for water-dispensers and cooling systems in retail applications and the optimisation of wastewater treatment plant. The report is completed with a list of current research and development projects.

  19. Smart Meter Rollout: Intelligente Messsysteme als Schnittstelle zum Kunden im Smart Grid und Smart Market

    Science.gov (United States)

    Vortanz, Karsten; Zayer, Peter

    Das Gesetz zur Digitalisierung der Energiewende ist verabschiedet. Ab 2017 sind moderne Messeinrichtungen (mME) und intelligente Messsysteme (iMSys) zu verbauen und zu betreiben. Der "deutsche Weg" für die Einführung von Smart Metern sieht einen stufenweisen Rollout sowie ein Höchstmaß an Informations- und Datensicherheit vor. Dabei spielen iMSys und mME eine wichtige Rolle bei der Neugestaltung der intelligenten Netze (Smart Grids) und des neuen Marktmodells (Smart Market). Dieser Beitrag beschäftigt sich mit den neuen Gesetzen, den Marktrollen und ihren Aufgaben, Datenschutz und Datensicherheit, dem iMSys als sichere Lösung, dem sicheren Betrieb von Smart Meter Gateways, Smart Grid - Smart Market, dem Zusammenspiel zwischen reguliertem Bereich und Markt, den Einsatzbereichen der iMSys sowie den Auswirkungen auf Prozesse und Systeme und gibt Handlungsempfehlungen.

  20. Editorial zum Tagungsband: Spannungsfelder und blinde Flecken. Medienpädagogik zwischen Emanzipationsanspruch und Diskursvermeidung

    Directory of Open Access Journals (Sweden)

    Sven Kommer

    2017-10-01

    Full Text Available Die erziehungswissenschaftliche Auseinandersetzung mit Medien hat in Deutschland eine lange und vielfältige Tradition. In den letzten Jahrzehnten hat sich die Medienpädagogik zu einer eigenständigen akademischen (Teil-Disziplin entwickelt, die in der (Fach-Öffentlichkeit wahrgenommen wird und sich aktiv in aktuelle gesellschaftliche Diskurse einbringt. Sichtbar wird die Etablierung als Fach u. a. daran, dass an einer Reihe von Hochschulen Professuren geschaffen wurden, die für medienpädagogische Studienelemente oder -gänge und/oder Zusatzausbildungen verantwortlich sind. Der gestiegene Stellenwert der Disziplin zeigt sich auch an ihrer Rolle in der Deutschen Gesellschaft für Erziehungswissenschaft, innerhalb derer sie sich von einer «Arbeitsgemeinschaft auf Zeit» (Mitte der 1990er-Jahre zu einer eigenständigen Sektion (seit 2010 entwickelt hat. Angesichts der gegenwärtig zu beobachtenden Entwicklungen im Medienbereich (u. a. Digitalisierung, Globalisierung, Algorithmisierung, deren Folgen für gesellschaftliche und pädagogische Prozesse und Bereiche kaum zu unterschätzen sind, erstaunt es, dass die Medienpädagogik bis heute dazu neigt, Rechtfertigungsstrategien für die eigenen Existenz zu generieren. Bei einer kritischen Betrachtung (z. B. der universitären Stellenpolitik ist aber zu konstatieren, dass sich die Medienpädagogik auch 40 Jahre nach dem Erscheinen von Dieter Baackes wegweisender Schrift Kommunikation und Kompetenz ihrer Anerkennung und festen Verankerung im akademischen Feld tatsächlich noch immer nicht sicher sein kann. Eine Ursache hierfür liegt möglicherweise in der noch immer grossen (und oftmals geradezu zelebrierten Heterogenität des Faches. So sind die unterschiedlichen Traditionslinien des pädagogischen Umgangs mit Medien, die mitunter nur bedingt miteinander vereinbar sind, bis heute zu beobachten und wirkmächtig. Zu unterscheiden ist hierbei bspw. eine auf Emanzipation, kommunikative Kompetenz und Selbstermächtigung orientierte Linie, die sich in ausserschulischen Settings subjekt- und ressourcenorientiert die Medien als Instrumente subversiver Strategien und/oder der Identitätskonstruktion angeeignet hat. Oft nur bedingt an diese anschlussfähig ist eine schulpädagogische Linie, die ihren Ausgang bei der ‹Film- und Medienerziehung› genommen hat und inzwischen stärker auf Kompetenzerwerb fokussiert. Daneben findet sich dann noch eine (vielfältig ausdifferenzierte ‹Mediendidaktik›, die immer wieder technologie-euphorisch innovatives Lernen versprochen hat. Positiv gewendet, zeigt bereits diese kleine Skizze, dass die Medienpädagogik als erziehungswissenschaftliche Disziplin darauf verweisen kann, wie intensiv Theoriebildung, Forschung und Praxis gegenwärtig in einem breiten Spektrum von Ansätzen, Forschungsschwerpunkten und ‹Schulen› vollzogen wird. Das Fach ist also sehr lebendig – erscheint aber aus der Perspektive externer Beobachter möglicherweise auch als diffus.

  1. Die Milch kommt aus dem Supermarkt? Ein ungewöhnliches Medienpaket zum Thema Milch

    Directory of Open Access Journals (Sweden)

    Gerda Berthold

    2011-09-01

    Full Text Available Dass Kühe nicht lila sind, dürfte sich bei den meisten Kindern schon herumgesprochen haben. Fragt man jedoch, woher wohl Milch, Kakao oder andere Milchprodukte kommen, erntet man als Antwort oft nur verständnislose Blicke, Achselzucken oder bestenfalls den Namen einer Supermarktkette.

  2. Ausgrenzung der Antike als Problemverlust - zum Verhältnis von Bildung und Arbeit

    Directory of Open Access Journals (Sweden)

    Jörg Ruhloff

    2014-06-01

    Full Text Available "The exclusion of antiquity as impoverishment of thought - on the relationship between “Bildung” and labor". In contemporaneity the concept of Bildung even at University has been identified more and more with labor. The synonymous use of both terms stands in contradiction to the historic meaning of Bildung at its first occurrence in ancient Greek. The original characterization of Bildung which decidedly excluded any kind of work is no longer taken into consideration. The article reflects on the problematic loss of the historic consciousness of the difference between Bildung and labor and on the debatable consequences resulting in a constrictive and pauperizing development of Theory of Education.

  3. "Mediman" – Smartphone als Plattform zum Lernen? ["Mediman" – The smartphone as a learning platform?

    Directory of Open Access Journals (Sweden)

    Boeder, Niklas

    2013-02-01

    Full Text Available [english] Mobile devices with a connection to the internet – smartphones – are seen all over the place since the popular introduction of the Apple iPhone. Similar products existed but no company managed to combine simplicity and functionality so seamlesly. Their market share increases constantly and web sites get optimised for the small display sizes (often referred to as „responsive webdesign“ otherwise the usability lacks. Students seem to like smartphones aswell and a good question is if and to what extend those devices can play a role in e-learning.„Mediman“, an adaptation of the common game Hangman has been developed for smartphones. Test users asked to complete an online questionnaire. So far, only few e-learning applications for smartphones seem to exist. This is reflected in the low usage frequency. Especially the fact that most of the test users wear a smartphone with them all the time makes it an ideal learning plattform. Short learning sessions were rated more important than continuous text. The majority of the 11 test users rated Mediman as well developed. The foremost question whether a smartphone e-learning application is feasible must be answered positive – acceptance in the test user group was shown. E-learning applications on smartphones will be an important topic in the future as market shares increase constantly. Further studies are required due to the small number of partitipants in our survey. [german] Mobile Endgeräte mit Internetzugang (Smartphones sind seit Apples revolutionärer iPhone-Markteinführung nicht mehr aus dem Alltag wegzudenken und erfreuen sich ausgesprochener Beliebtheit. Ihr Marktanteil wächst stetig und Webseitenbetreiber kommen nicht umher, ihre Webseiten an die neuen kleinen Displaygrößen und Bedienungstechniken anzupassen – häufig als „Responsive Webdesign“ beschrieben. Anwendungen, die nicht für die Anzeige auf kleinen Bildschirmen optimiert sind, schränken den Bedienkomfort ein. Auch bei Studierenden sind Smartphones sehr verbreitet und so stellt sich die Frage, ob sie nicht auch als Plattform für Lernanwendungen dienen können.„Mediman“, eine Portierung des klassischen Spielprinzips von Galgenmännchen, wurde für Smartphones entwickelt. Testbenutzer wurden dann gebeten, einen Onlinefragebogen auszufüllen. Zur Zeit scheinen nur wenige Lernanwendungen für Smartphones zu existieren, was sich in der eingeschränkten Benutzungshäufigkeit widerspiegelt. Vor allem die Tatsache, dass Smartphone-Besitzer ihre Geräte meist bei sich tragen, wird als ideale Voraussetzung gesehen, die Geräte für Lernanwendungen einzusetzen. Hier scheint vor allem das Lernen in kurzen Sitzungen von Interesse. Mediman wurde von der Mehrzahl der 11 Testbenutzer als gut umgesetzte Beispielanwendung bewertet. Die zentrale Frage der Umsetzbarkeit einer Smartphone-Lernanwendung wurde damit erreicht – die notwendige Akzeptanz scheint vorhanden.Für die Zukunft ist mit einer zunehmenden Verbreitung von Smartphones zu rechnen, sodass Lernanwendungen und –szenarien für Endgeräte mit kleinen Bildschirmen optimiert werden sollten. Aufgrund der geringen Fallzahl in der Onlineumfrage sollten weitere Untersuchungen angeschlossen werden.

  4. Vom Geschäftsgang zum Prozess: Prozessmanagement in Bibliotheken am Beispiel der Staatsbibliothek zu Berlin

    Directory of Open Access Journals (Sweden)

    Cornelia Vonhof

    2015-12-01

    Full Text Available Der Beitrag skizziert den Weg der Staatsbibliothek zu Berlin bei der Implementierung eines systematischen Prozessmanagements. Basierend auf den Erfahrungen aus einem Pilotprojekt werden Vorgehensweisen und Methoden reflektiert und weiterentwickelt, die sich eignen, in einer großen, arbeitsteiligen Organisation eingesetzt zu werden. Beleuchtet werden Motivationsfaktoren für Prozessmanagement sowie neue Ansätze wie Service Blueprint und Adaptiv Case Management, die das klassische Verständnis von Prozessmanagement erweitern. The article outlines the path of the Berlin State Library working towards the implementation of a systematic process management. Based on the experience of a pilot project procedures and methods are reflected and further developed to be suitable for a large, work-sharing organization. Motivating factors for process management as well as new approaches such as Service Blueprint and Adaptive Case Management, that expand the classical understanding of process management, are covered.

  5. Thainess, filmischer Nationalismus und die Theoriebildung zum thailändischen Kino der Gegenwart

    OpenAIRE

    Böhler, N

    2011-01-01

    Thainess, the manifestation and expression of Thai national identity, is a focal issue in Thai culture. It also appears in Thai cinema, in story contents as well as in film form and style. When doing research about the form of contemporary Thai cinema, one comes across a wide range of different theoretical positions, including pure description, embracing of Poststructuralist and Neo-Marxist theory, and criticism of these very positions. Based on the assumption that the choice of theory also m...

  6. Ebenen des Verstehens: Überlegungen zu einem Verfahren zum Wurzelziehen

    Science.gov (United States)

    Winter, Martin

    Wir bemühen uns, insbesondere bei Kindern, den Lernprozess auch im Mathematikunterricht durch den Einsatz von Materialien zu unterstützen. Die Arbeitsschritte dienen dabei oft der Vorbereitung oder Herleitung von Verfahren - in der Hoffnung, dass durch die Veranschaulichung Zusammenhänge besser verstanden werden. Worin dann das Verstehen besteht, wenn im Ergebnis ein Verfahren von den Kindern erfolgreich abgearbeitet wird, ist nicht unmittelbar zu sehen.

  7. Evaluation and analysis of energy consumption in office buildings; Feldstudie zum Energieverbrauch von Buerogebaeuden

    Energy Technology Data Exchange (ETDEWEB)

    Maas, Stefan; Scholzen, Frank; Thewes, Andreas; Waldmann, Daniele [Universitaet Luxemburg, Campus Kirchberg, Fakultaet fuer Naturwissenschaften, Technologie und Kommunikation, Forschungseinheit Ingenieurswissenschaften, Luxemburg (Luxembourg); Zuerbes, Arno [Fachhochschule Bingen, Fachbereich Technik, Informatik und Wirtschaft, Bingen am Rhein (Germany)

    2011-06-15

    During the last years the national energy consumption of Luxembourg shifted noticeable towards the building sector. In 1990 71 % of the total domestic end energy consumption was ascribed to industrial sector and only 20 % to the building sector. The distribution changed significantly and in 2005 the energy consumption dedicated to industrial sector represented only 44 %, transport 25 % and the tertiary sector 31 % [1], which includes private and public households as well as non-residential buildings. The buildings account for 40 % of total energy consumption in the EU and there is an enormous energy saving potential. Therefore the EUdirective 2002/91/EG [2] requires from all EU Member States to save energy in this sector. Hence the energy saving of buildings present an essential part of climate protection. Furthermore the new directive 2010/31/EG [3] requires from the Member States to tighten national standards and to draw up national plans for increasing the number of nearly zero-energy buildings. But for a better understanding of energy flows in buildings and to develop energy saving concepts as well as to estimate possible energy savings of buildings a detailed analysis of energy consumption databases is an important precondition. The following field survey monitors 47 office buildings in Luxembourg. A separate gathering of electricity, heat and cooling energy consumptions allowed a detailed energetic analysis. A statistical analysis and interpretation of new buildings differentiated by energy sources as well as definition of energy relevant parameters like the window ratio, the construction method, the type of use or the kind of technical installations show the problems of typical existing office buildings. A final extrapolation to the population of all new office buildings in Luxembourg helps to estimate the energy saving potential.

  8. Biomass - Activities and projects in 2002; Biomasse Aktivitaeten und Projekte 2002. Ueberblicksbericht zum Forschungsprogramm 2002

    Energy Technology Data Exchange (ETDEWEB)

    Binggeli, D.; Guggisberg, B.

    2003-07-01

    This annual report made for the Swiss Federal Office of Energy reviews the activities carried out under the Biomass Research Programme in 2002 and describes the various projects that were active during the year. The situation concerning energy supply from biomass is discussed and figures are presented on its share in total Swiss energy consumption. Three categories of biomass use are presented - burning, fermentation of wastes and biofuels. >From each of these categories, several pilot and demonstration projects are described that cover a wide range of technologies and research activities, ranging from the pre-processing of biogenic wastes through to the optimisation of biogas-based combined heat and power installations and the operational economics of compact biogas installations. The report is completed with lists of research and development projects and pilot and demonstration projects.

  9. Zum Transfer kulturspezifischer Textbedeutungen. Theoretische und methodische Überlegungen aus einer semiotischen Perspektive

    Directory of Open Access Journals (Sweden)

    Hennecke, Angelika

    2009-01-01

    Full Text Available This paper discusses the role of cultural specific text elements in the constitution of the meaning of the text and focuses the problems which these elements can cause in the translation process. It is based on a description of the translation process as symbiosis of the three categories language, text and culture in a specific situation. The described comprehension of translation turns the question of the methodology of the cultural transfer into a key question that consequently has an impact on the praxis and didactics of translation. The meaning of a text is the result of a complex interaction of different systems in which different types of knowledge are activated. The central question is how culture manifests itself within texts and how these manifestations can be reconstructed, i.e. how the translator's decisions can be made transparent in the context of the transfer. Firstly there is a theoretical reflection on the interdependence of the three categories language, culture and text in which the underlying semiotic conception of text and culture is outlined. On this basis a pragma-semiotic model of the constitution of the text as a complex sign is presented, and a methodology for an integrative text analysis is deduced from this theoretical conception of text constitution. The different forms of cultural specific elements are analyzed and categorized, whereas in addition to the traditional manifestations the concept of intertextuality is introduced and discussed as an important fact for the pragmatic and cultural coherence of the text. The defined forms of cultural specific text elements are illustrated by a number of examples taken from translation praxis and classroom. All the examples are translations from Spanish into German. Finally, the practical and didactical implications, which are of great importance for the training of further translators, are discussed.

  10. Schaltungskonzepte zum Betrieb von Leuchtdioden für die Allgemeinbeleuchtung

    OpenAIRE

    Pawellek, Alexander

    2018-01-01

    Licht bestimmt das Leben der Menschen und ohne eine künstliche Beleuchtung wäre die Gesellschaft in der heutigen Form undenkbar. Aktuelle Lichtquellen beruhen auf der Umwandlung von elektrischer Energie in Strahlungsenergie im sichtbaren Spektrum. Hierbei nimmt die Beleuchtung insgesamt einen Anteil von ca. 15 % am weltweiten elektrischen Energiebedarf ein, wobei für die Zukunft eine steigende Tendenz erwartet wird. Die Senkung der benötigten Energiemenge erfordert zwingend die Entwicklung in...

  11. Untersuchungen zum in vivo Differenzierungspotenzial muriner und humaner hämatopoetischer sowie muriner neuraler Stammzellen

    OpenAIRE

    Harder, Friedrich

    2003-01-01

    Zusammenfassung Im Zuge der Säugerentwicklung entsteht aus der totipotenten Eizelle ein Organismus aus mehr als 200 verschiedenen Zelltypen. Dabei wird die Entwicklung und der Erhalt des Tieres von Stammzellen gewährleistet. Während der Embryonalentwicklung gibt es nur transient vorkommende Stammzelltypen, während der adulte Körper die Homoeostase mittels permanent vorhandener somatischer Stammzellen aufrechterhält. Als kennzeichnend für die somatischen Stammzellen galt, dass sie nur die Zell...

  12. Vom Phänomen zum Begriff: Auswirkungen von naturwissenschaftlichem Experimentieren auf die Sprachentwicklung von Grundschulkindern

    OpenAIRE

    Gottwald, Anja

    2014-01-01

    Abstract Initial Position and Objectives In german Science teaching, "language" usually stands for inconsistencies between everyday and sci-entific language (RINCKE 2007, ANTON 1999). LEISEN asked "Shall I now also teach language?" a few years ago (LEISEN 2005). Little research takes a constructive perspective on language (Lück 2009c, SCHEUER et al. 2010), WAGENSCHEIN being an early and rare exception (WAGENSCHEIN 1923). In his and Lück's wake, this study explores the links between doi...

  13. Das IRB-Modell des Kreditrisikos im Vergleich zum Modell einer logarithmisch normalverteilten Verlustfunktion

    OpenAIRE

    Vetter, Michael; Cremers, Heinz

    2008-01-01

    In 2004 the Basel Committee published an extensive revision of the capital charges which creates more risk sensitive capital requirements for banks. The New Accord called International Convergence of Capital Measurement and Capital Standard provides in its first pillar for a finer measurement of credit risk. Banks that have received supervisory approval to use the Internal Ratings-Based (IRB) approach may rely on their own internal estimates of risk components in determining the capital requi...

  14. Handbook on German-Russian energy law; Handbuch zum deutsch-russischen Energierecht

    Energy Technology Data Exchange (ETDEWEB)

    Saecker, Franz Juergen (ed.) [Freie Univ. Berlin (Germany)

    2010-07-01

    The handbook under consideration offers a comparative presentation of the energy law in Russia and in the Federal Republic of Germany and would like to promote an approach of the energy legal regulations of the two states and the European Union. The handbook covers the entire legal problems from the exploration over the production and transport from energy resources up to the processing and consumption. The handbook considers not only the energy economy law, the energy antitrust law, the energy contractual law and the energy environment law, but also refers to the atomic law and the mining law in the presentation of the energy right.

  15. Common project energy change. The schedule to the success; Gemeinschaftsprojekt Energiewende. Der Fahrplan zum Erfolg

    Energy Technology Data Exchange (ETDEWEB)

    Bartosch, Ulrich [Katholische Univ. Eichstaett-Ingolstadt (Germany).; VDW Vereinigung Deutscher Wissenschaftler, Berlin (Germany); Hennicke, Peter [Wuppertal Institut fuer Klima, Umwelt, Energie GmbH, Wuppertal (Germany); Weiger, Hubert (ed.) [Bund fuer Umwelt und Naturschutz Deutschland e.V. (BUND), Berlin (Germany)

    2014-07-01

    The energy change is the most important common work of the German after-war history. And it offers a unique collective field of learning, how the socio-ecological transformation can be converted in practice. If the energy change succeeds in an industrial country like Germany, many other countries can follow this example. The Bund fuer Umwelt und Naturschutz Deutschland (BUND) and the Vereinigung Deutscher Wissenschaftler (VDW) show as editors, what now must be done in order that the energy change becomes a success. Because currently threatens the energy change to be slowed down by the policy and talked to death by many stakeholders in the industry. This book demonstrates why the energy change is necessary and how it can succeed. It shows what has to be done and wants to use the existing enthusiasm in order to lead the common project energy change jointly to success. What is needed is a long-term policy that finally takes the reduction of energy consumption in attack.

  16. Building with wood: A contribution to ecological building technology?; Holzbauweise: Ein Beitrag zum oekologischen Bauen?

    Energy Technology Data Exchange (ETDEWEB)

    Kubina, A. [Oberste Baubehoerde im Bayerischen Staatsministerium des Innern, Muenchen (Germany)

    1995-09-01

    The present paper reports on double-story wooden system buildings in Bavaria in the Federal German Republic. The plans of nine different architectural offices from home and abroad are discussed. (HW) [Deutsch] Es wird berichtet ueber zweigeschossige Holzsystembauten im Freistaat Bayern (Bundesrepublik Deutschland). Diskutiert werden die Entwuerfe von 9 Architekturbueros aus dem In- und Ausland. (HW)

  17. Experiments on the identification of radiation processed foods. Untersuchungen zum Nachweis bestrahlter Lebensmittel

    Energy Technology Data Exchange (ETDEWEB)

    Delincee, H [Inst. fuer Ernaehrungsphysiologie, Bundesforschungsanstalt fuer Ernaehrung, Karlsruhe (Germany)

    1992-01-01

    The availability of reliable detection methods allowing to show directly in the traded food product whether it has been irradiated or not, will help to assure consumers that the inspection authorities are able to check the compliance with existing regulations effectively. Numerous analytical methods for the identification of radiation processed foods were investigated at the Federal Research Centre for Nutrition in Karlsruhe over the years. This report will mainly consider the measurement of chemi- and thermoluminescence of herbs and spices, since in many countries these products are most frequently irradiated food items. Following radiation processing, herbs and spices mostly increase their luminescence intensities. The luminescence response, however, varies considerably from one spice to another, and even among several batches of the same spice. Since nonirradiated products may also exhibit luminescence, the discrimination irradiated - non-irradiated is not that simple. Isolation of mineral dusts associated with the food and measurement of the thermoluminescence of these mineral fractions improves the identification of irradiated food. International collaboration will help to establish standardized and reliable analytical detection methods in the near future. (orig.)

  18. Problembezeichnung und Problemerlebnis - Gedanken zum problematischen Selbstverständnis einer Übersetzungswissenschaft

    Directory of Open Access Journals (Sweden)

    Iscen, Ismail

    2005-01-01

    Full Text Available This study, related to the discussion concerning the basis of an "ÜW" (Science of Translation, aims to show the connection between the problems, which are concretely lived in the praxis of studies and researches (concentrated on the general topic "translation", and the definitions of these problems. The main arguments, which have been expressed in particular since the early 80's, can be described as against or for the "pure" disciplinary structure of a science of translation (ÜW. The study tries to make clear that these arguments have their origin in other disciplines, which aim to incorporate the translation researches. Concerning the theoretical basis of an ÜW (as an opposite/alternative to TS, translation studies the study discusses the possibilities given by the arguments named, particularly those emphasizing the precipice between the "Ü-Theorie" and "Ü-Praxis", the interdisciplinary spectrum of several sciences, the complexity of the subject etc. At the end of the study a proposal is formulated for resolving the main problem (of the discussion itself based on extra-disciplinary approaches. The discussion on the basis of a science of Translation (ÜW must be clarified by a logical order of proceedings and the "dynamic structure" of principle analyses in ÜW, which can be defined as subordination and coordination aspects of the discipline.

  19. Allgemeinmedizin zum Anfassen – Zirkeltraining im Hörsaal als praxisnahes Vorlesungsäquivalent

    Directory of Open Access Journals (Sweden)

    Blank, Wolfgang A.

    2014-08-01

    Full Text Available [english] Introduction: Traditional university teaching formats are of limited use when it comes to conveying the inner workings and specific remit of general medicine in a practical way. Small supervised groups present themselves as a plausible and effective alternative for learning to interact with patients in low prevalence areas.Description of the project: A frontal lecture was transformed into an interactive seminar-like lecture for 280 students. Short kick-off presentations served as an introduction to rotating circuit stations. Knowledge, skills and professional attitude specific to general and family medicine were intensively trained by 28 small groups in and around the auditorium by means of activating didactic methods. The small groups were supervised by experienced GP’s trained as tutors. During six days, consisting of 3.5 hour sessions per day, working methods, a large variety of common medical conditions, preventive primary care and care for the elderly were amongst the topics addressed. Results: This new format was successfully implemented and developed with regards to content as well as organisation. Well over 90% of the 274 participating students evaluated tutors’ commitment, coherent delivery of content, learner-oriented atmosphere and practical focus positively. Given the advantages of a small-group learning situation, the somewhat cramped conditions were accepted by 92%.Discussion: The innovative concept was able to work successfully within the specific framework of patient care in a general and family medicine setting. A creative approach to the lack of space managed to mobilise resources for practical small-group work. Being able to work on specific general practice problems in a small-group setting and immediately reflect upon them was rated positively overall.Conclusions: Responsibilities and specific working methods in general practice / family medicine can be trained successfully even with large groups of students when limited space is used creatively. In a supervised circuit-training setting, students are able to apply their existing knowledge and skills in a practical way. Further research is needed to assess individual learning success and gains in competence under this novel learning situation.

  20. From passive house to a plus-energy building; Vom Passivhaus zum Plusenergiehaus

    Energy Technology Data Exchange (ETDEWEB)

    Jaeger, Frank Peter [Redaktionsbuero Archikontext, Berlin (Germany)

    2012-07-01

    Towards the energy policy turnaround buildings have a particular emphasis because buildings consume nearly 40% of the primary energy in Germany. However, these climate protection targets of the policy cannot be achieved by means of individual highly efficient buildings. Thus, the bureau Deimel Oelschlaeger (Berlin, Federal Republic of Germany) is specialized on an ecologic construction of multifamily residential buildings in cities and hopes to implement the total know-how in large urban scale. Its actual passive house in the Boyen Street in Berlin is a passive house of the new generation.

  1. Investigation of new materials for SOFC applications; Untersuchungen zum Einsatz neuer Werkstoffe fuer SOFC-Anwendungen

    Energy Technology Data Exchange (ETDEWEB)

    Wackerl, J.

    2007-05-04

    Fuel cells based on solid oxides ('SOFC') are excellent alternative devices for power generation, when they are operated at high temperature, e.g. above 600 C. Having only fixed parts for the power generating part of the device is only one advantage of the fuel cell. Due to their unique design, these devices offer a maximum of efficiency for energy conversion compared to conventional power generating systems, which are mainly based on turbines. One aim of this thesis is the examination of alternative electrolyte and cathode materials for the SOFC applications at reduced temperatures, which means in the temperature range between 600 C and 750 C. For the first main task, several materials from the oxygen ion conducting electrolytes were selected. Different strontium and magnesium doped lanthanum gallate (LSGM) materials with additional transition metal doping were selected and prepared via two different preparation methods. The optimum calcining conditions were determined using thermal analysis methods. The results of the structural analysis of the sintered electrolyte materials were used to select the most suitable electrolyte materials. As a result, LSGM and iron doped LSGM (LSGMF) were the most promising materials. Further investigations were carried out on LSGMF materials with different strontium content. The influence of chemical cation non-stoichiometry on the perovskite material was investigated. Therefore, measurements to gather information about the crystallographic structure, morphology, electrochemistry and electrical conductivity were carried out. For a selected sample, the correlations between single effects, such as the crystallographic structure, and the electrical properties are shown by combining the different analysis methods. It could be shown that both the electrochemistry and the crystallographic structure have a significant influence on the electrical conductivity of the LSGMF materials. The second aim of the thesis was the selection and preparation of suitable cathode materials for the SOFC operated at reduced temperatures. The focus for this selection was laid on the chemical compatibility with LSGMF and Scandia doped yttria (ScSZ) based electrolyte materials. Most of the cathode materials could be prepared single phased, with the exception of a strontium doped lanthanumcuprate and a strontium doped lanthanumnickelate. The third aim of the thesis was the investigation of the chemical compatibility between the prepared cathode materials and the electrolyte materials ScSZ and LSGM. The combinations of electrolyte-cathode materials were annealed at commonly used co-sintering temperatures but for extended sintering times. X-Ray diffraction patterns (XRD) and scanning electron microscopy (SEM) were used for the investigation. Based on the examination of the appearing primary and secondary phases and the morphology a ranking of the combinations is given. The least chemical reactions with both electrolyte materials were observed for a strontium doped lanthanum manganite. However, a strontium and copper doped lanthanumferrite seems to be the most promising cathode material for reduced temperatures. (orig.)

  2. Ansätze zum Controlling in der Hähnchenmast

    OpenAIRE

    Recke, Prof. Dr. Guido; Andersson, Prof. Dr. Robby

    2013-01-01

    Controlling can provide management with instruments for improving production processes. It can be shown that in ecological broiler production controlling can support the management of production processes and will lead to better economic results.

  3. Monoklonale Antikörper zum Nachweis von 2,4,6-Trichloranisol in Kork

    OpenAIRE

    Lausterer, Ralph

    2005-01-01

    Die Verbindung 2,4,6-Trichloranisol (TCA) kann in Kork und Wein vorkommen. TCA entsteht durch mikrobielle Umsetzung von Chlorphenolen. In den betroffenen Industrien führt TCA zu jährlichen Verlusten von mehr als einer Milliarde €. Zur Bestimmung von TCA sollten enzymkoppelte Immunabsorptionstest (ELISAs) mit monoklonalen Antikörpern (mAk) entwickelt werden. Es wurden drei TCA-spezifische mAk-produzierende Zelllinien gewonnen. Mit diesen mAk wurden hochsensitive ELISAs hergstellt, die eine Nac...

  4. War Kaspar Hausers Bildungsgang zum Scheitern verurteilt? : zur Relevanz eines erfahrungsorientierten schulischen Lernens

    OpenAIRE

    Hinz, Renate

    1999-01-01

    Anhand der Reflexion des "Bildungsganges" von Kaspar Hauser untersucht die Autorin vermittels einer biographischen Herangehensweise die These: "Bildungsgänge sind nicht nur in ihrer objektiven Strukturierung, sondern auch als subjektive Entwicklungsaufgaben zu verstehen, die es dem Individuum ermöglichen, selbstverantwortlich und mitgestaltend den eigenen Lebensweg zu bestimmen." Erfahrungsorientierung des Lehrens und Lernens unter Berücksichtigung der je eigenen Lebensgeschichte und also die...

  5. Guideline for ageing management in nuclear power plants; Leitlinie zum Alterungsmanagement in Kernkraftwerken

    Energy Technology Data Exchange (ETDEWEB)

    Herter, K.H.; Schuler, X. [Materialpruefungsanstalt (MPA), Univ. Stuttgart, Stuttgart (Germany); Hienstorfer, W.; Pompe, W. [TUeV SUeD Energietechnik GmbH, Filderstadt (Germany)

    2007-07-01

    During operation of nuclear power plants, the quality of systems, structures and components may change as a result of ageing (conceptional ageing, technological ageing or physical ageing), which will affect the system quality. Ageing management is necessary to ensure safety and availability throughout the life of the systems. This necessitates a systematic, integrative and knowledge-based approach. Systems, structures and components are grouped according to their relevance for meeting the set goals. Ageing mangement should be process-oriented and should be integrated in the organisational procedure in cooperation with the safety manager. The procedure should follow the PDCA principle (plan - do - check - act). The data, documents, knowledge and evaluations required for ageing management are part of the knowledge base of the nuclear power station and are updated regularly. The efficiency of ageing management must be reassessed at regular intervals. (orig.)

  6. Contribution to energy management in vehicles; Beitrag zum Energiemanagement in Kfz-Bordnetzen

    Energy Technology Data Exchange (ETDEWEB)

    Fabis, R M

    2006-07-01

    Modern vehicles have faced a continuous rise in power demand over the last decade. It is neither possible to cover all energy needs reliably, nor to guarantee a successful cranking. Therefore new solutions are needed, such as energy management or the introduction of 42V-technology (mild hybrid). This dissertation discusses the design requirements of energy management systems (e.g. power-train dimensioning) and considers some interventions (e.g. reduction of power demand, motor idle speed lifting), as well as the associated consequences (battery state, consumer satisfaction). The dissertation contains an example of the energy management system, which is based on the battery- and alternator specific data. Different aspects are emphasised regarding the 42V-technology: impact of the energy management on the battery state, optimisation of the battery state of charge, support of the combustion engine by the electrical system when cranking and/or bringing up to speed, and recovery of the braking energy. The dissertation shows the methods for the validation of energy management systems, which are based on Matlab/Simulink simulations. Several battery-, alternator- and consumer models are shown. Finally a tool chain is presented, which allows the automation of simulation processes. (orig.)

  7. Swiss Biomass Programme - Overview report on the 2007 research programme; Programm Biomasse: Ueberblicksbericht zum Forschungsprogramm 2007

    Energy Technology Data Exchange (ETDEWEB)

    Binggeli, D; Guggisberg, B

    2008-07-01

    This illustrated report for the Swiss Federal Office of Energy (SFOE) presents an overview of the results obtained in 2007 within the framework of the Swiss Biomass research programme. The potential for biomass use in Switzerland is reviewed and the emphases of the national programme are discussed. The results obtained are noted for the following areas: process optimisation, including - amongst others - particle emissions and control aspects as well as combined wood-pellets and solar heating systems. Projects involving non-wood biomass are reported on, including biomass digesters and various biogas systems. Further reports deal with the analysis and optimisation of material flows, organic pollutants and methane losses. New conversion technologies are reported on. Further reports deal with basic strategies and concepts in the area of biomass usage. National and international co-operation is also discussed. A selection of innovative pilot and demonstration projects is also presented and research and development projects are listed.

  8. Biogas from farms will be tomorrow's fuel; 'Biogas vom Bauer wird zum Treibstoff von morgen'

    Energy Technology Data Exchange (ETDEWEB)

    Bruecker, U [ITZ Innovations Transfer Zentralschweiz, Horw (Switzerland); Limacher, L; Krummenacher, S [Energie Treuhand ETL AG, Lucerne (Switzerland); Schmid, J [Schmid Management und Kommunikation AG, Chur (Switzerland)

    2003-07-01

    This final report for the Swiss Federal Office of Energy presents the results of a preliminary study on the technical, logistical and economic possibilities of agricultural biogas production for use as motor fuel. The study was made for a geographically limited region in the Swiss Canton of Lucerne. The reason for the choice of this area - which exhibits a high density of cattle and fowl - and its high potential for the production of biogas from animal excrements are discussed. The economic viability of three possible variants of biogas usage are discussed - its use as a fuel for electricity generation, the processing of the biogas and its injection into the natural gas mains and storage of the biogas in compressed-gas cylinders. Also, the relevance of biogas production in terms of environmental protection is emphasised - ammonia emissions from liquid manure poses a serious problem for the region. Further, political and market development aspects are discussed.

  9. Untersuchungen zum Riechvermögen bei Patienten mit schizophrenen Störungen

    OpenAIRE

    Minovi, A; Dombrowski, T; Brüne, M; Dazert, S; Juckel, G

    2014-01-01

    Einleitung: Riechstörungen werden bei Patienten mit einer Schizophrenie in vielen Studien beschrieben. Im Rahmen einer prospektiv angelegten Studie untersuchten wir das Riechvermögen von 18 Patienten mit einer Schizophrenie im Vergleich zu einer Kontrollgruppe (n=13). Weiterhin erfolgte eine immunhistochemische Untersuchung der Riechschleimhaut bei 8 Patienten mit einer Schizophrenie.Methoden: Die Riechprüfung erfolgte mit Hilfe der erweiterten Sniffin' Sticks-Testbatterie. Nach Biopsie der...

  10. Device for filling tubular electrode plates for lead batteries. Vorrichtung zum Fuellen von Roehrchenelektrodenplatten fuer Bleiakkumulatoren

    Energy Technology Data Exchange (ETDEWEB)

    Barth, P.U.; Kubis, C.; Weber, H.J.; Wiepen, R.

    1984-11-22

    The device applies the vibration principle and according to the invention it uses a filling cassette for accommodating tubular electrode plates. The filling cassette has a filling funnel and is suspended with its vibration drive by springs. The vibration drive consists either of two out-of-balance motors, which are rigidly connected to the lower frame of the cassette, and have opposite directions of rotation, or of one out-of-balance motor, which is connected to a joint below the frame of the cassette.

  11. Improving crack counterbalanced sucker rod pump units; Ueberlegungen zum dynamischen Drehmomentenausgleich von Tiefpumpenantrieben

    Energy Technology Data Exchange (ETDEWEB)

    Kessler, F. [Montanuniversitaet Leoben (Austria). Inst. fuer Konstruktionslehre

    1997-02-01

    Counterbalancing the torque at the gearbox, resulting from the load at the polished rod and the geometry of the unit, is still a significant design and operational problem. In this article well known crank-counterbalanced units are briefly described and a new unit, with an additional crank counterbalance system, is introduced. The counterweights on the cranks always create a sinusoidal torque distribution over one cycle. Applying the arithmetic method of non linear regression to the torque distribution, which results from the load at the polished rod, a most closely matching sinussoidal curve can be calculated. This curve shows the optimum phase angle and counterweight torque value and therefore a quick adjustment of the counterweights can be made. With the same arithmetic method, phase angle and counterweight value of the additional crank counterbalance is established. A comparison between a conventional unit and one with an additional counterbalancesystem has shown, that in the second case, the acting gearbox torque is up to 50% lower than in the first case. This allows the use of smaller gearbox and prime mover. From the technical point of view the additional counterbalance system is an excellent development enabling the acting-gearbox torque to be reduced. System set-up requires only a simple computer program and careful operator implementation. (orig.) [Deutsch] Der Ausgleich des zyklisch schwankenden Antriebsdrehmomentes stellt fuer die Auslegung und den Betrieb von Tiefpumpenantrieben ein zentrales Problem dar. In der vorliegenden Arbeit werden einleitend die bekannten Antriebsbauarten mit dynamischem Drehmomentenausgleich beschrieben und eine neue Bauart mit zusaetzlichem Ausgleich vorgestellt. Die Lasten am Pferdekopf verursachen an der Kurbel (Getriebeausgang) ein Drehmoment, das als Bruttodrehmoment bezeichnet wird. Das Ausgleichsdrehmoment zur Verringerung des Bruttodrehmomentes ist jenes Moment an der Kurbel, das durch die rotierenden Ausgleichsgewichte entsteht und stets einen sinusfoermigen Verlauf hat. Die Anwendung des mathematischen Verfahrens der nichtlinearen Regression auf die Bruttodrehmomentenkurve ergibt eine bestmoegliche Anpassung einer Sinuskurve an dieselbe. Damit ist die Phasenverschiebung und die Groesse des optimalen Ausgleichsdrehmomentes gegeben (mit negativem Vorzeichen) und eine rasche Einstellung der Ausgleichsmassen auf den Kurbelarmen ist moeglich (ueblicher Ausgleich=Ausgleich I). Mit derselben mathematischen Methode sind auch die Massen sowie die Phasenverschiebung eines zusaetzlichen Ausgleiches einstellbar (Ausgleich 2). Der Vergleich der beiden Ausgleichssysteme ergab, dass mit einem Ausgleich 1 und 2 gegenueber nur einem Ausgleich 1 die maximalen Nettodrehmomente an der Kurbel bis zu 50% verringert werden koennen. Dadurch erlaubt ein Ausgleichssystem 1 und 2 die Verwendung kleinerer Antriebsmotoren und Getriebe gegenueber nur einem Ausgleich 1. Vom technischen Standpunkt aus betrachtet ist ein zusaetzlicher Ausgleich 2 eine ausgezeichnete Moeglichkeit den Drehmomentenausgleich an der Kurbel zu verbessern. Die erforderlichen Einstellarbeiten setzen jedoch die Verwendung eines kleinen Rechnerprogrammes sowie groessere Sorgfalt des Durchfuehrenden voraus. (orig.)

  12. Planning of a small hydroelectric installation project - orientation aids; Vom Plan zum Werk - Orientierungshilfen

    Energy Technology Data Exchange (ETDEWEB)

    Hutarew, A. [Dr. Hutarew und Partner, Pforzheim (Germany)

    1997-12-31

    The article informs in concise form on essential elements of the plannning of a small hydro power project. Understanding and considerateness are demanded from all parties concerned when such a joint project is envisaged. Not one-sided interests should be followed; rather, everyone should contribute towards facilitating renewable energy generation. Some negative examples are cited. (orig.) [Deutsch] In der Kuerze der gebotenen Zeit wurde versucht, wesentliche Eckpfeiler in der Entstehung einer Wasserkraftanlage zu skizzieren. Ziel meiner Ausfuehrungen ist es, von allen Beteiligten Verstaendnis abzuverlangen und Ruecksichtnahme zu praktizieren, geht es doch darum, ein gemeinsames Werk entstehen zu lassen. Wir stehen nicht in der Not, einseitige Interessen zu verfechten, sondern gemeinsam an einem Baustein regenerativer Energieerzeugung zu arbeiten. Es sei mir verziehen, wenn durch die Schilderung von Negativ-Beispielen ein eher unueblicher Weg beschritten wurde. (orig.)

  13. Small water courses for electric power generation; Mit wenig Wasser zum Fliessen bringen

    Energy Technology Data Exchange (ETDEWEB)

    Ossberger, K.F.; Wirth, D. [Ossberger Turbinenfabrik GmbH und Co, Weissenburg (Germany)

    1997-12-31

    In principle, no one nowadays doubts the usefulness of small hydroelectric installations. Hydro power is a renewable energy source. Contrary to oil, gas or coal, the energy source is not consumed. Hydroelectric power generation neither gives rise to atmospheric pollution nor does it cause residual products; it is environment-friendly. Moreover, the energy used is a native one. These arguments no doubt advocate the broadest possible use of hydro power, especially also in the form of small hydroelectric installations. (orig.) [Deutsch] Grundsaetzlich gibt es heutzutage keinen Zweifel am Nutzen von Kleinkraftwerken. Die Wasserkraft ist eine regenerierbare Energiequelle. Im Gegensatz etwa zu Oel, Gas oder Kohle wird der Energietraeger Wasser beim Nutzungsvorgang nicht aufgebraucht. Die Stromerzeugung aus Wasserkraft belastet die Umwelt weder durch Luftschadstoffe noch Rueckstaende, sie ist umweltfreundlich. Und man nutzt damit einheimische Energie. Gewichtige Argumente zweifellos, die fuer eine moeglichst weitgehende Wasserkraftnutzung, gerade auch in Kleinkraftwerken, sprechen. (orig.)

  14. Zum Einsatz von Informationstechnologie zur Verbesserung der Arzneimitteltherapiesicherheit (Memorandum AMTS-IT

    Directory of Open Access Journals (Sweden)

    Ammenwerth, Elske

    2014-02-01

    Full Text Available [english] Information technology in health care has a clear potential to improve quality and efficiency of health care, especially in the area of medication processes. On the other side, existing studies show possible adverse effects on patient safety when IT for medication-related processes is developed, introduced or used inappropriately. The objective of this paper is to summarize definitions and observations on IT usage in pharmacotherapy, and to derive recommendations and future research priorities for decision makers and domain experts. The recommendations address, among others, a stepwise and comprehensive strategy for IT usage in medication processes, the integration of contextual information for alert generation, the involvement of patients, the semantic integration of information resources, usability and adaptability of IT solutions and the need for their continuous evaluation.

  15. Waste incineration on its way to the power plants; Muellverbrennung auf dem Weg zum Kraftwerk

    Energy Technology Data Exchange (ETDEWEB)

    Reich, J. [STEAG encotec GmbH, Essen (Germany); Neukirchen, B. [STEAG AG, Essen (Germany)

    2004-07-01

    Looking at the year 2005 and the end of disposal of untreated domestic waste the politic hopes that the prognosticated lack of waste treatment capacity is remedied by coal-fired power plants. The classical municipal waste incinerators by contrast want to get recognition as energetic recycler in comparison with power stations. The decision of the European Court of Justice concerning recycling and disposal of domestic waste by incineration has started the discussion and competition on fuel-rich commercial waste. Are municipal waste incineration plants power stations or must power plants be regarded as incinerators? These questions are still open. (orig.) [German] Mit Blick auf das Jahr 2005 und das Ende der Ablagerung von unbehandeltem Siedlungsabfall hofft die Politik, dass der prognostizierte Mangel an Vorbehandlungskapazitaeten von den Kohlekraftwerken behoben wird. Die klassischen Muellverbrennungsanlagen wollen dagegen mit dem Kraftwerksvergleich die Anerkennung als energetische Verwerter erreichen. Das EuGH-Urteil zur Verwertung oder Beseitigung von Siedlungsabfall durch Verbrennen hat in diesem Jahr die Diskussion und den Kampf um den heizwertreichen Gewerbeabfall angeheizt. Die Frage, wie weit in Zukunft die Muellverbrennungsanlagen als Kraftwerke, aber auch die Kraftwerke als Muellverbrennungsanlagen angesehen werden muessen, ist noch offen. (orig.)

  16. Vergleichende Untersuchungen zum Verbund von Cobalt-Basis-Legierungen und Metall-Keramik-Verbundsystemen

    OpenAIRE

    Herms-Westendorf, Lea Maria

    2017-01-01

    This thesis aims to answer the question: Does the use of bonding agents and cobalt chromium alloys with variable degrees of rigidity have an effect on the bonding strength of metal fused to ceramic systems? The 3 point flexural test of SCHWICKERATH (DIN EN ISO 9693) served as the basis for the studies. Test samples included omitting or including the bonding agent NP Bond® (VITA) and choosing either a more stable (Wirobond® 280) or more flexible dental alloy (Wirobond® C) (BEGO). The used c...

  17. Die Schönbuchbahn. Von der Nebenbahn zum S-Bahn-Standard

    Science.gov (United States)

    Brauer, Tobias

    2017-09-01

    Since the successful reactivation of the schönbuch railway between Böblingen and Dettenhausen the number of passengers has increased continuously. Due to this high demand of over 8000 people per day and the increase of popularity the current expansion projects include the electrification of the 17 km long track and the installation of double-track sections for providing a 15-minute-service between Böblingen and Holzgerlingen. To realize the new operational concept, Zweckverband Schönbuchbahn (ZVS), the public transport authority, has ordered nine light rail-styled vehicles (with costs around 51,3 mio. euro for developing and construction). In this way the schönbuch railway is an important factor to guarantee a sustainable and forward-looking mobility in the metropolitan area of Stuttgart and for restricting car traffic.

  18. Untersuchungen zum Einfluss einer Air-Liquid-Interphase auf die Differenzierung von Alveolarepithelzellen Typ II

    OpenAIRE

    Sinis, Nektarios

    2003-01-01

    Die Dedifferenzierung der Alveolarepithelzellen Typ II stellt in vitro ein großes Problem dar. Zellen, die länger als 48 Stunden in vitro kultiviert werden tendieren zu einer Dedifferenzierung. Die vorliegende Arbeit stellt ein Air-Liquid-Interphasesystem zur Kultivierung von TypII-Zellen vor. Hierdurch ist es uns gelungen TypII-Zellen über einen Zeitraum von bis zu 14 Tagen in vitro auf einem hohen Grad der Differenzierung zu konservieren. Zellen die nicht so kultiviert wurden zeigten fr...

  19. Preiskenntnis und Preiselastizität von Biomilch im Naturkosteinzelhandel: Empirische Analyse zum Verbraucherverhalten

    OpenAIRE

    Burchardi, H.; Thiele, H. D.

    2005-01-01

    Demand theory assumes that price elasticity is low if price knowledge is also low. In this case a high-price strategy for regional organic milk will be more successful. This paper focuses on the relation between price knowledge and willingness to pay analysing survey data of 171 consumers in natural food stores in 2004. In accordance with existing literature only 39 % of the consumers have an exact price idea for organic milk. The majority over- or underestimates the price of milk. Results sh...

  20. Himmelsblau. Bemerkungen zum Thema „Farben“ in Humboldts Alterswerk Kosmos. Entwurf einer physischen Weltbeschreibung

    Directory of Open Access Journals (Sweden)

    Petra Werner

    2006-04-01

    Full Text Available Articel in German, Abstracts in English and German.For the greater part of his life, Alexander von Humboldt was interested in colour phenomena which he observed in nature. These observations led him to do research into phenomena such as the blue colour of the sky, enigmatic dust and hail, and the colour of plants. Humboldt corresponded with many scientists about the connection between sunlight and the creation of colours, about coloured shadows, the Blue Cave in Capri, the colour of stars, plants etc. Claude-Louis Berthollet developed a model for the composition of a blue colour (Indigo, a technology which was of great importance to the textile industry.The present paper focuses on Humboldt’s interest in the blue colour of the sky, which he shared with artists, writers and scientists like Johann Wolfgang von Goethe, Christian Gottfried Lichtenberg, Caspar David Friedrich and Horace Bénédict de Saussure. During his travels in South America, Humboldt used Saussure’s cyanometer to determine the intensity of the blue colour of the sky. Later he corresponded about this instrument with his friend François Arago who had invented a cyanometer based on chromatic polarisation. While Humboldt was working on his “Cosmos”, Arago explained to his friend the latest results in physics, especially in polarography. Towards the end of his life, Humboldt corresponded with the painter J. G. Schall and admitted that he had somewhat lost his interest in the physical explanation of the blue colour of the sky.

  1. Biomass programme: Overview of the 2006 Swiss research programme; Programm Biomasse. Ueberblicksbericht zum Forschungsprogramm 2006

    Energy Technology Data Exchange (ETDEWEB)

    Binggeli, D.; Guggisberg, B.

    2007-07-01

    This report for the Swiss Federal Office of Energy (SFOE) reviews work done within the framework of the Swiss biomass research programme in 2006. The programme concentrates on the efficient conversion of biomass into heat, electrical power and motor fuels. Projects concerned with the optimisation of processes are reported on, including low-particle-emission systems, control systems for bivalent heating installations, use of demanding biomass fuels, combined pellets and solar heating systems and the elimination of ammonia emissions. In the material flow area, measurement campaigns, organic pollutants in compost, the effects of fermented wastes in agriculture and methane losses in biogas conditioning are reported on. New conversion technologies are reviewed, including hydro-thermal gasification, plant-oil fuelled combined heat and power units, flameless burners and catalytic direct liquefaction. In the area of basics, studies and concepts, eco-balances and life-cycle analyses are reported on; the production of synthetic natural gas and the influence of combustion particles are discussed and decentralised power generation from solid biomass is reported on. National and international co-operation is reviewed. The report is concluded with a review of eight pilot and demonstration projects, a review of work to be done in 2007 and a list of research and demonstration projects.

  2. Peter Schlechtriem zum Gedächtnis - in memoriam Peter Schlechtriem / Rolf Herber, Jan Ramberg

    Index Scriptorium Estoniae

    Herber, Rolf

    2007-01-01

    Järelehüüe Saksa tsiviilõiguse arendajale, mitmete Euroopa ja Ameerika Ühendriikide ülikoolide külalisõppejõule, Tartu Ülikooli audoktorile, professor Peter H. Schlechtriemile (02. 03. 1933-23. 04. 2007)

  3. Process for using lead battery scrap. Verfahren zum Verarbeiten von Bleiakkumulatorenschrott

    Energy Technology Data Exchange (ETDEWEB)

    Sycev, A P; Kim, G V; Larin, V F; Sidorova, G D; Vicharev, I G; Kuur, V P; Achmetov, R S; Moiseev, G L; Maslov, V I; Kabacek, V G

    1986-06-26

    The process for using lead battery scrap is such that it leads to an increase of lead metal without the use of fluxes for forming the melt. According to the invention, the battery scrap is broken up, dangerous parts (organic substances containing chlorine) are removed and large pieces of lead (pole bridges, grids, contact pins) are sorted out. The remainder is chopped up into pieces less than 10 mm in size. The small pieces are melted by the suspension melting process at a temperature of 1300 to 1500/sup 0/C in an oxidising atmosphere (air or oxygen) without using any fuel. As the small pieces contain parts of the battery case (= organic substances free of chlorine), they burn in air generating heat, which is then used to melt the sulphate oxide lead compounds. The previously sorted large lead parts are then added to the lead oxide melt. Finally, the lead oxide is reduced to lead metal with coke in a furnace. After the reduction of lead oxide to lead, less than 0.2% of the initial lead content in the battery scrap being processed is lost in the dumped slag.

  4. Zum biologisch-dynamischen Forschungsansatz – Nur philosophisches Beiwerk oder Erkenntnisbedingung einer Wissenschaft vom Leben?

    OpenAIRE

    Hagel, Ingo

    2002-01-01

    [Einleitung:] Die Biologisch-Dynamische Wirtschaftsweise ist die älteste unter den verschiedenen Methoden des Ökologischen Landbaus. Ihr geistiges Fundament ist eine Reihe von Vorträgen, die Rudolf Steiner (1861-1925) im Jahr 1924 in Koberwitz bei Breslau für Landwirte hielt (STEINER 1924a). Daher können ihre Voraussetzungen und Intentionen und auch ihr Forschungsansatz nicht losgelöst von dem spirituellen Weltbild der Anthroposophie, deren Begründer Rudolf Steiner ist, betrachtet werden. ...

  5. Editorial: Visuelle Kompetenz: Bilddidaktische Zugänge zum Umgang mit Fotografie

    Directory of Open Access Journals (Sweden)

    Thomas Hermann

    2013-01-01

    Full Text Available Die Beiträge des Themenheftes 23 beleuchten, wie ein erweitertes Verständnis von Fotografie und fotografischer Praxis für die Partizipation an einer bildzentrierten Gesellschaft gefördert werden kann und, nicht zuletzt, wodurch eine solche Förderung begründet ist. ‹Visuelle Kompetenz› als Ermöglichung von Teilhabe überspannt ein weites Feld – drei Themenbereiche werden in diesem Heft fokussiert: Fotografiegeschichte als Lerngegenstand in Schule und Hochschule, fotopraktische (Forschungs-Projekte als Explorationen medienpädagogischer Potenziale und schliesslich Dimensionen von Fotografie in Medien- und Kunstrezeption. Fotografien lesen, Bilder machen, sich ein Bild machen – die Beiträge des Themenheftes loten den Zusammenhang zwischen Bildrezeption, Bildproduktion und der Erschliessung dessen aus, was uns als Realität umgibt und im fotografischen ­Medium ‹ins Bild gesetzt› ist. Dass es einer Reflexion solcher Bildwerdungsprozesse bedarf, um die viel diskutierte Wirkmacht der Bilder oder ihre inflationäre Unsichtbarkeit kritisch zu hinterfragen, weisen die verschiedenen Zugänge zu Fotografie im breiteren Kontext pädagogischer Vermittlungsarbeit auf. Dabei ist es nicht die Absicht dieses Heftes, durch ausufernde Begriffserörterungen die Frage danach zu klären, was mit ‹Visueller Kompetenz› gemeint sein kann oder sollte. Vielmehr ergibt sich aus der Zusammensicht der hier versammelten Beiträge ein Überblick über die Bereiche, in denen bildorientierte Theorie- und Praxiskompetenz ihre Relevanz entfaltet.

  6. Medienerziehung im Vorschulbereich - Zum Projekt Mediengarten der Wiener Medienpädagogik

    Directory of Open Access Journals (Sweden)

    Gudrun Kern

    2010-09-01

    Full Text Available Im Zuge des Projekts Mediengarten der Wiener Medienpädagogik wurde in Kooperation mit angehenden KindergartenpädagogInnen eine Medienerziehung im Sinne einer Auseinandersetzung über Medien im Vorschulbereich anhand konkreter Angebote in Kindergärten konzipiert. Im folgenden Artikel werden die Schwerpunktsetzungen dieses Konzepts vorgestellt und durch praktische Beispiele verdeutlicht.

  7. Europe remains optimistic, in spite of the German collapse; Europa. Deutschland zum Trotz - optimistischer

    Energy Technology Data Exchange (ETDEWEB)

    Epp, Baerbel

    2010-12-14

    More than 269 producers of solar thermal systems participated in the ISOL autumn inquiry. This is about one fifth more than in spring 2010. The index reflects the market conditions worldwide: There were record sales in Brazil, a collapsed market in Canada and Germany, a slight downward trend in Austria, and careful optimism in Italy.

  8. International action strategies for the protection of the earth's atmosphere. Internationale Handlungsstrategien zum Schutz der Erdatmosphaere

    Energy Technology Data Exchange (ETDEWEB)

    Nachtigaeller, J [Deutsches Uebersee-Institut, Hamburg (Germany). Inst. fuer Allgemeine Ueberseeforschung

    1991-01-01

    The present three conventions - the already adopted convention for protection of the ozone layer, the convention as regards the abatement of trace gas pollution, and the convention for conserving the tropical woods, could all culminate in an international convention for protection of the earth's atmosphere, which would have to comprise comprehensive regulations for an international environment policy and an international environment fund. In addition, an international environment convention should have the aim of sustainable development in all countries, leaving living conditions intact, taking account of the requirements of future generations, and helping the Third World to overcome its poverty in particular. (orig./HSCH).

  9. Mobilisierung des amerikanischen Volks zum Eintritt in den Ersten Weltkrieg mithilfe von Bildpropaganda

    Directory of Open Access Journals (Sweden)

    Simone Stiehl

    2014-12-01

    Full Text Available This study analyses how, after years of neutrality, the government of the USA managed to convince their multicultural society that an American entry into the First World War was necessary. It is presumed that the suggestive power of the state run poster propaganda greatly contributed to winning the approval of the majority of Americans, which resonated in the United States’ total mobilization. Three posters of the Committee on Public Information and the U. S. Food Administration are used to demonstrate how the enemy was represented and how the inclusion of children and emigrants helped to evoke a patriotic spirit as well as an idea of national unity in the observer.

  10. Alles Leben ist Problemlösen: Zum 100. Geburtstag von Karl Raimund Popper

    OpenAIRE

    Kirchgässner, Gebhard

    2002-01-01

    Karl Popper wäre im Juli 2002 hundert Jahre alt geworden. Prof. Dr. Gebhard Kirchgässner würdigt den politischen Philosophen, der als bedeutendster Wissenschaftstheoretiker des 20. Jahrhunderts gilt.

  11. Bypass devices for descent of eels in hydropower plants; Bypasseinrichtungen zum Abstieg von Aalen an Wasserkraftanlagen

    Energy Technology Data Exchange (ETDEWEB)

    Goehl, C.

    2004-07-01

    During their downstream migration, as a consequence of passing hydroelectric turbines, eels receive various injuries. Because of declining numbers the European eel has already been declared an endangered species in several German states. In respect to the distinctive situation of the hydroelectric power station Dettelbach in the river Main, as a first step the fluidic prerequisites of eel migration as well as facilities for the downstream passage of eels were examined in a physical experiment. Following behavioral tests with eels were used to verify their acceptance of these installations. Based on the attained results this thesis discusses the basics of the construction of downstream passage facilities for eels, heeding the principle which underlie the principle of no force and limitation on the area of main activity. The gained results suggest a feasible and cost-effective concept for the downstream passage of eels. Although the transferability of instinctive reactions and a basic efficiency is assumed, further wildlife experiments have to be conducted to verify efficiency in a natural environment. (orig.)

  12. Ergebnisse einer Querschnittsstudie zum Zusammenhang von elektromagnetischen Feldern von Mobilfunksendeanlagen und unspezifischen gesundheitlichen Beschwerden

    DEFF Research Database (Denmark)

    Breckenkamp, Jürgen; Blettner, Maria; Kowall, Bernd

    2010-01-01

    Background: Despite the fact that adverse health effects are not confirmed for exposure to radiofrequency electromagnetic field (RFEMF) levels below the limit values, as defined in the guidelines of the International Commission on Non-Ionizing Radiation Protection, many persons are worried about...... in predominantly urban areas. Participants were asked whether base stations affected their health. Health complaints were measured with standardized health questionnaires for sleep disturbances, headache, health complaints and mental and physical health. 3,526 persons responded (85%) to the questionnaire and 1......,808 (51%) agreed to dosimetric measurements in their flats. Exposure was measured in 1,500 flats. Results: The measurements accomplished in the bedrooms in most cases showed very low exposure values, most often below sensitivity limit of the dosimeter. An association of exposure with the occurrence...

  13. Partiell oberflaechengehaertete Riffelwalze: Partiell oberflaechengehaertete Riffelwalze und Verfahren zum Oberflaechenhaerten (A1)

    OpenAIRE

    Paul, H.; Krumphold, R.; Pollack, D.; Burck, P.; Kraegelin, L.; Neubert, P.

    1987-01-01

    DE 3711451 A UPAB: 19970307 Rolls with a wavy surface for use in the mfr. of currugated cardboard receive a partially hardened surface structure with a hardened zone in the shape of a circular segment on each wave crest. The max.thickness of this zone is 0.35 mm. Its width is bounded by a tangent at 45 deg. to the radial plane through the crest. The pref. surface hardening method is based on a CO2 laser beam of under 500 W output. ADVANTAGE - The thickness of the hardened zone is now such tha...

  14. Device for automatic filter changing. Einrichtung zum selbsttaetigen Wechseln eines Filters

    Energy Technology Data Exchange (ETDEWEB)

    Matschoss, V; Naschwitz, A; Wild, H

    1984-01-05

    A filter is moved from a store to an aerosol pipe by a lifting device and is clamped there. At the end of the operating period, the lifting device moves a new filter to a parking place. Control is from limit switches of the lifting, clamping and thrust devices and the position control of the store is by the limit switches. The filter changing device is enclosed in a gastight case, prevents blockage of a filter and makes it possible to set a certain operating period, to change the filter without interrupting the aerosol flow and to measure each filter in the sequence of operation outside the aerosol flow.

  15. Vom Terrorismus zum Wandel durch Annäherung: Houellebecqs ‚Soumission‘

    Directory of Open Access Journals (Sweden)

    Wolfgang Asholt

    2016-03-01

    Full Text Available Es handelt sich um den Text eines Vortrags beim von Ursula Hennigfeld und Elmar Schafroth organisierten Workshop „Zensur, Political Correctness und Terrorismus“  (Universität Düsseldorf, 30.6. – 2.7. 2015.

  16. "Mehr als, bloss Bucher" Die Bibliothek Gellerup. Vom "Buchcontainer" zum Community Centre: Ein Beispiel aus Danemark

    DEFF Research Database (Denmark)

    Andersen, John; Frandsen, Martin; Hedelund, Lone

    2008-01-01

    Kapitlet handler om bibliotekets mulige rolle som facilitator af empowermentprocesser og social inklusion i marginaliserede byområder med Community Center Gellerup som eksempel. Bidraget indgår i en antologi baseret på et forskningsseminar på Humboldt-Universitat, Berlin om bibliotekers rolle for...

  17. Auf dem Weg zum Portalverbund – das neue Onlinezugangsgesetz (OZG) / Thorsten Siegel

    Index Scriptorium Estoniae

    Siegel, Thorsten

    2018-01-01

    Haldusteenustele liidu ja liidumaade tasandil infotehnoloogilise juurdepääsu tagamisest ühtse portaali loomise ja seadustamisega; põhiseaduse artikli 91 tõlgendamisest. Vt samal teemal ka lk. 193-198

  18. Data on research and technology marketing in 2000; Daten zum Forschungs- und Technologiemarketing 2000

    Energy Technology Data Exchange (ETDEWEB)

    Friehmelt, R.; Oberdorf, R.

    2001-04-01

    At Forschungszentrum Karlsruhe all ideas suited for cooperations or licenses or for the raising of third-party funds are stored in a know-how database run by the Technology Transfer and Marketing Department (TTM). At trade fairs, current licenses and cooperations desired and offered are pinned up on a board. In addition, approx. 6300 interested persons are informed about wishes and offers of licenses and cooperations five times per year. In the present report, the ideas of Forschungszentrum Karlsruhe are split up in accordance with the type of partner wanted, the technical field covered, their age, and the institutes involved. The numbers of contacts made on trade fairs are indicated. Inquiries regarding the TT information sheets have been counted and the contacts are evaluated. Furthermore, it is reported about the presence of technology offers in databases. Strategic actions, in particular market studies, were carried out for attractive topics in cooperation with partner companies. Finally, proposals for improvement shall be discussed. (orig.) [German] Von der Stabsabteilung Technologietransfer und Marketing (TTM) werden alle Ideen aus dem Forschungszentrum Karlsruhe, die fuer Kooperationen, Lizenzen oder zur Drittmitteleinwerbung geeignet sind, in einer Know-how-Datenbank gefuehrt. Die aktuellen Technologieangebote werden auf Messen ausgehaengt. Ausserdem werden fuenfmal jaehrlich Technologieangebote an einen Kreis von etwa 6300 Interessenten verschickt. Der Bericht schluesselt die Ideen des Forschungszentrums nach Art der gesuchten Partner, Fachgebieten, Alter und nach Instituten auf. Es werden die Zahlen der Messekontake angegeben. Zu den Technologieangeboten wurden die Ruecklaeufer gezaehlt und die Kontakte bewertet. Es folgen Angaben zur Praesenz der Technologieangebote des Forschungszentrums in Datenbanken. Zu attraktiven Themenbereichen wurden mit Unterstuetzung von Partnerfirmen strategische Aktionen durchgefuehrt, insbesondere Marktuntersuchungen. In einem Ausblick werden Verbesserungsvorschlaege diskutiert. (orig.)

  19. Verbraucherstudie zum Thema dänische männliche, nicht kastrierte Schweine

    DEFF Research Database (Denmark)

    Godt, Jannik; Kristensen, Kai; Poulsen, Carsten Stig

    1996-01-01

    Former studies of the unpleasant odour of meat from certain uncastrated male pigs have been based mainly on evaluations made by trained sensory panellists. This study analyses the effect of the two dominating male pig odour components, skatole and androstenone, on the evaluation of eating quality...... made in-home by consumers, thus bringing the analysis out of the laboratory and into the market place. The vast majority of the population of uncastrated male pigs have low concentrations of skatole and androstenone. The cutlets that were evaluated in this study were selected from uncastrated male pigs...

  20. Zum Anbau von Sojabohnen auf einem leguminosenmüden Standort in einem Dauerfeldversuch

    OpenAIRE

    Urbatzka, Peer; Castell, Adelheid

    2015-01-01

    There is little experience in repeated growing of soybeans in a short term crop rotation in Germany. Also, the impact of soils with legume fatigue on soy beans is unknown. To gather information on potential problems with a high share of soybeans in organic cropping system under Bavarian soil and climate conditions, soybeans were grown each three years over three rotations in a long term field experiment on a legume fatigue soil. The yield and the crude protein content were raised or uncha...

  1. Safe to the super GAU (worst case scenario); Sicher bis zum Super-Gau

    Energy Technology Data Exchange (ETDEWEB)

    Simon, Armin

    2017-07-15

    The NPP Philipsburg-2 has violated existing safety requirements for 32 years: Due to the bolt breaks in ventilation channels four safety injection systems could fail in case of an incident. The NPP was built deviating from the design with respect to the safety against strong vibrations. A rather earth quake or military aircraft crash could trigger a severe accident. Further safety deficiencies concern insulating materials in the sump, insufficient cooling water levels during start-up and fire prevention.

  2. Verfahren und Vorrichtung zum rissfreien Schweissen, Reparaturschweissen oder Auftragsschweissen heissrissanfaelliger Werkstoffe

    OpenAIRE

    Brenner, B.; Goebel, G.

    2006-01-01

    WO 2008046542 A2 UPAB: 20080604 NOVELTY - The procedure for crack-free welding, repair welding or surface welding of metallic parts (1, 2), comprises locally applying a temperature by two parallel or nearly parallel temperature fields (9, 10), which extend along the welding direction, are electromagnetically generated by a volume energy source inside the parts, both begin in front of the welding zone in the welding direction, and of which the maximum temperatures are reached outside the heat ...

  3. Beitrag zum mechanismus der oxydation von freiblei in bleiakkumulatorpaste bei der reifung

    Science.gov (United States)

    Duc Hung, Nguyen; Garche, J.; Wiesener, K.

    The kinetics of lead oxidation during curing was studied by chemical analysis of the free lead content as well as by the gas volumetry of oxygen. The difference in the results in this research lies in the evolution of hydrogen as a curing reaction. This agrees with the results of curing the paste The optimal water content of the paste for lead oxidation was determined. A model for the electrolyte film during curing has been developed, which allows the results to be interpreted satisfactorily.

  4. Avoidance of fluorinated greenhouse gases. Possibilities of an early exit; Fluorierte Treibhausgase vermeiden. Wege zum Ausstieg

    Energy Technology Data Exchange (ETDEWEB)

    Becken, Katja; Graaf, Daniel de; Elsner, Cornelia; Hoffmann, Gabriele; Krueger, Franziska; Martens, Kerstin; Plehn, Wolfgang; Sartorius, Rolf

    2010-11-15

    In comparison to carbon dioxide, fluorinated greenhouse gases are more harmful up to a factor of 24,000. Today the amount of fluorinated greenhouse gases of the world-wide emissions of climatic harmful gases amounts 2 % and increases to 6 % in the year 2050. The authors of the contribution under consideration report on possibilities for the avoidance of the emissions of fluorinated greenhouse gases. The characteristics and ecological effects of fluorinated gases as well as the development of the emission in Germany are presented. Subsequently, the applications of fluorinated hydrocarbons are described.

  5. Japans Hauptstadt in Deutschland -. wie Düsseldorf sich zum wichtigsten Ziel japanischer Investitionen machte

    Science.gov (United States)

    Jäger, Kristina

    2017-04-01

    Local actors, such as municipal authorities, can promote and shape the settlement of foreign companies in a particular manner. In many instances, actions of economic promotion can lead to several conflicts; firstly between foreign investors and their national representatives, and secondly with (supra)regional industries or business circles. Here, flexible and long-term settlement projects, the permission of migrant infrastructure, and moreover, their high-profile marketing may attract foreign companies and long-term investors.

  6. Suhtumisest modernistlikesse ehitistesse Saksamaal = Zum Umgang mit den Bauten der Moderne in Deutschland / Anke Zalivako

    Index Scriptorium Estoniae

    Zalivako, Anke, 1963-

    2009-01-01

    Modernismi mõistest ja tähendusest, materjalidest ja konstruktsioonidest. Muinsuskaitselistest lähtekohtadest modernistlike ehitiste säilitamisel Saksamaal. Näidete varal sama kasutusega hoonete (Weissenhofsiedlung, Einsteiturm Podstamis, Bauhaus'i koolihoone) renoveerimisest ja modernistlike ehitiste kasutusmuutusest

  7. Trauma und Terror : Zum palästinensischen und tschetschenischen Nationalismus

    OpenAIRE

    Szyszkowitz, Tessa

    2007-01-01

    Although small and not particularly peoples both Chechens and Palestinians became famous for suicide bomber attacks in recent years. This can - partly - be explained by the unrecognised collective traumas of the past. Both Chechens and Palestinians experienced collective traumas in the 1940ties. The entire Chechen population wad deported by Josef Stalin to Kasakhstan, Kirgysia and Sibiria in February 1944 under the pretext of collaboration with the Third Reich. Those who survived were allo...

  8. 1913: Von der Zeitschrift zum Archiv für Religionspsychologie

    NARCIS (Netherlands)

    van Belzen, J.A.; Mack, W.; Lück, H.E.; Renner, K.-H.; Wolfradt, U.

    2014-01-01

    The contribution deals with some of the early infrastructure in the psychology of religion, in particular with the Zeitschrift für Religionspsychologie, founded 1907 by the psychiatrist Johannes Bresler (1866–1942) und the theologian Gustav Vorbrodt (1860–1929). The engagement of the two first

  9. Vom Stabilitäts- und Wachstumsgesetz zum Wohlstands- und Nachhaltigkeitsgesetz

    OpenAIRE

    Koll, Willi

    2016-01-01

    Das Stabilitäts- und Wachstumsgesetz wird bald 50 Jahre alt. Neue Herausforderungen erfordern eine Wirtschaftspolitik, die weit über die Ziele des Gesetzes hinausweist. Sie muss wirtschaftliches Wachstum und Stabilität mit den Zielen fiskalischer, sozialer und ökologischer Nachhaltigkeit auf nationaler und europäischer Ebene verbinden. Der Autor gibt einen Über blick über solche umfassenden Zielsysteme und leitet daraus ab, wie eine derart erweiterte wirtschaftspolitische Agenda in ein Wohlst...

  10. Energy efficiency of induction heating; Energieeffizienz von Anlagen zum induktiven Randschichthaerten

    Energy Technology Data Exchange (ETDEWEB)

    Schuboltz, Stefan; Stiele, Hansjuerg [EFD Induction GmbH, Freiburg (Germany)

    2012-09-15

    Based on increasing prices for energy and growing consciousness for ecology, the energy efficiency of machines has become an important aspect in many sectors of the industry. The significance of the efficiency factor of induction heating systems, which are generating power ratings up to the megawatt-band, has risen up eminently. Due to increasing needs on reliable solutions and high requirements for the components, induction as a tool for surface hardening obtains high demands. (orig.)

  11. Die Niederlande und Wasser - Vom technischen Küstenschutz zum Deltaprogramm im Hinterland

    NARCIS (Netherlands)

    Kaufmann, Maria; Hartmann, Thomas

    2018-01-01

    Due to its coastal location and the fact that it serves as a delta to major river systems, the Netherlands is one of the most flood-prone areas in Europe. Consequently, managing flooding has a long tradition. Historically, flood management is characterised by a technical defence approach to reduce

  12. Rede Macht Asylpolitik - Bundestagsreden zum Thema Flucht und Asyl aus metaphorologischkulturwissenschaftlicher Perspektive

    Directory of Open Access Journals (Sweden)

    Arthur Depner

    2016-12-01

    Full Text Available This paper analyses the use of metaphor in political speeches addressing the so-called “refugee crisis”. The speeches were made in 2015 in the German parliament by members of the government and opposition. Our findings show that systematic and profound analysis of the apparently trivial assumption that political rhetoric effects public opinion and vice versa, produces significant results in the field of an ethnology of contemporary “Western” national states and their interdependence. This includes their self-understanding as well as the complex dynamics of discourse and power within themselves and on a global scale. The approach presented in our paper is capable of grasping the dynamic socio-cultural negotiation processes currently underway. We argue that it is important to examine the metaphorical dimension of expressions used in political discourses. If these are taken for granted, no scope would be left for alternative expressions and metaphors that trigger different frames and thus enable alternative actions.

  13. Biochar strategies as measures for climate protection; Biokohlenstrategien als Massnahmen zum Klimaschutz

    Energy Technology Data Exchange (ETDEWEB)

    Bach, Martin [Giessen Univ. (Germany). Landschaftsoekologie und Ressourcenmanagement; Wilske, Burkhard; Bai, Mo

    2014-07-01

    Biochar is advertised by stakeholders both public and private as an innovative interface in materials stream management which holds potential for added value in the fields of climate protection, energy, agriculture, soil improvement, and waste management. A number of factors must be considered in undertaking a comprehensive assessment and valuation for climate protection purposes of the option of a ''biochar strategy'', meaning carbon sequestration by biomass carbonisation (pyrolysis, HTC): biochar production and uptake capacities, energy and carbon balance, product stability, impact on soil functions and yield effects and, not least, economic aspects. This article addresses the more important of these factors.

  14. Sorghum as an alternative of cultivation to maize; Sorghumhirse als Anbaualternative zum Mais

    Energy Technology Data Exchange (ETDEWEB)

    Jaekel, Kerstin; Theiss, Markus; Poetzschke, Karen [Saechsisches Landesamt fuer Umwelt, Landwirtschaft und Geologie (LfULG), Dresden (Germany)] [and others

    2013-10-01

    Due to their high dry matter yield potential Sorghum bicolor and Sorghum bicolor x sudanense are well fitted as feedstock for biogas production. Similar to maize, both species show a high efficiency in their use of water (C4-plants). However, Sorghum has a higher drought tolerance in comparison with maize but is more sensitive to low temperatures. Hence a cultivation of Sorghum is recommendable especially in dry and relatively warm regions, including recultivated areas and even on loess soil, provided that the required temperatures are given. Due to the fact that Sorghum is not affected by the corn root worm, it also could gain relevance in regions were the cultivation of maize is restricted. Furthermore, Sorghum is usable as a catch crop as well as a main crop because of its variable sowing time. Catch crop cultivation, however, yields a significantly lower amount of dry matter and -quality which is a result of its shorter vegetation period. Owing to its higher crude fiber concentration Sorghum achieves a lower theoretically attainable specific methane yield (Weissbach) than maize. Thus only on rare occasions Sorghum does achieve methane yields per hectare that are comparable to maize. Eventually, the competitiveness of Sorghum greatly depends on provision of enhanced cultivars achieved through genetic improvement. (orig.)

  15. Procedure guideline for radioiodine test (version 3); Verfahrensanweisung zum Radioiodtest (Version 3)

    Energy Technology Data Exchange (ETDEWEB)

    Dietlein, M.; Schicha, H. [Deutsche Gesellschaft fuer Nuklearmedizin (DGN) (Germany); Koeln Univ. (Germany). Klinik und Poliklinik fuer Nuklearmedizin; Dressler, J. [Deutsche Gesellschaft fuer Nuklearmedizin (DGN) (Germany); Nuklearmedizinische Klinik der Henriettenstiftung, Hannover (Germany); Eschner, W. [Deutsche Gesellschaft fuer Nuklearmedizin (DGN) (Germany); Deutsche Gesellschaft fuer Medizinische Physik (DGMP) (Germany); Koeln Univ. (Germany). Klinik und Poliklinik fuer Nuklearmedizin; Lassmann, M. [Deutsche Gesellschaft fuer Nuklearmedizin (DGN) (Germany); Deutsche Gesellschaft fuer Medizinische Physik (DGMP) (Germany); Wuerzburg Univ. (Germany). Klinik und Poliklinik fuer Nuklearmedizin; Leisner, B. [Deutsche Gesellschaft fuer Nuklearmedizin (DGN) (Germany); Allgemeines Krankenhaus St. Georg, Hamburg (Germany). Abt. fuer Nuklearmedizin; Reiners, C. [Deutsche Gesellschaft fuer Nuklearmedizin (DGN) (Germany); Wuerzburg Univ. (Germany). Klinik und Poliklinik fuer Nuklearmedizin

    2007-07-01

    The version 3 of the procedure guideline for radioiodine test is an update of the guideline previously published in 2003. The procedure guideline discusses the pros and cons of a single measurement or of repeated measurements of the iodine-131 uptake and their optimal timing. Different formulas are described when one, two or three values of the radioiodine kinetic are available. The probe with a sodium-iodine crystal, alternatively or additionally the gamma camera using the ROI-technique are instrumentations for the measurement of iodine-131 uptake. A possible source of error is an inappropriate measurement (sonography) of the target volume. The patients' preparation includes the withdrawal of antithyroid drugs 2-3 days before radioiodine administration. The patient has to avoid iodine-containing medication and the possibility of additives of iodine in vitamin- and electrolyte-supplementation has to be considered. (orig.)

  16. Ganzheitlich prozessorientierte Entscheidungsunterstützung am Beispiel der Automobillackierung : Ein Beitrag zum industriellen Stoffstrommanagement

    OpenAIRE

    Rosenau-Tornow, Dirk

    2005-01-01

    Im Rahmen der sich verknappenden Ressourcen, der Anforderungen durch die Umweltgesetzgebung sowie des Gedankens einer nachhaltigen Entwicklung wird es für Unternehmen zunehmend wichtiger, den Aufwand für die Herstellung von Gütern und Dienstleistungen effizienter zu gestalten. Dabei gewinnt eine ganzheitliche Sichtweise unternehmerischer Entscheidung im Sinne von Technik, Ökonomie und Ökologie an Bedeutung, die eine Entkopplung von Wirtschaftswachstum und Ressourcenverbrauch bewirkt. Für betr...

  17. Ubersetzer als Problemloser. Eine qualitative Studie zum Problemloseverhalten von semiprofessionellen Ubersetzern

    OpenAIRE

    Kubiak, Paweł

    2009-01-01

    This book falls under the area of empirical research into the translation process. The focus lies on the problem-solving behaviour of semi-professional translators with the language pair German/Polish. The main corpus of research material are think aloud protocols, i.e. transcribed records of thoughts the subjects had in mind while translating. The data corpus is explored from three perspectives in this publication. The first step aims at synoptically describing the intraindivi...

  18. Verfahren zum Fuegen zweier insbesondere rohrfoermiger Bauteile mittels eines wirkmedienbasierten Umformverfahrens und hiermit hergestelltes Werkstueck

    OpenAIRE

    Ortmann, S.; Unger, J.; Sterzing, A.

    2007-01-01

    DE 102005030587 A1 UPAB: 20070129 NOVELTY - In a process to joint two lengths of pipe e.g. automotive exhaust pipe, a sleeve-fit is sealed by the application of a tool exerting high internal pressure in the overlap zone forming a contiguous flush seal (3). Further claimed is a suitable tube product e.g. automotive exhaust pipe. USE - Process to join two sections of metal pipe e.g. automotive exhaust pipe. ADVANTAGE - The join zone exterior surface has an uninterrupted smooth form.

  19. Energy management from the concept to the success; Energiemanagement - vom Konzept bis zum Erfolg

    Energy Technology Data Exchange (ETDEWEB)

    Baenninger, M. [Schweizerische Bankgesellschaft, Zurich (Germany)

    1995-12-31

    In chapter 20 of the anthology about building control the field of energy management is described. The following aspects are discussed: overview and procedure, model and communication, pilot projects, current energy control by building automation, energy levying and characteristic numbers. (BWI) [Deutsch] Kapitel 20 des Sammelbandes ueber Building Control ist dem Themenbereich des Energiemanagements gewidmet. In diesem Zusammenhang wird auf folgende Themen eingegangen: Ueberblick und Vorgehen; Leitbild und Kommunikation; Pilotprojekte; laufende Energiekontrolle via Gebaeudeautomation; Energieerhebung und Kennzahlen. (BWI)

  20. Vom Milch trinkenden Sonnentau (Drosera spec.) zum schlafenden Wassersalat (Pistia spec.): Charles Darwin als Botaniker

    OpenAIRE

    Rutishauser, R

    2009-01-01

    Charles Darwin wird oft nur mit der Evolutionstheorie in Verbindung gebracht. Die vorliegende Arbeit betont Darwins Verdienste bei der Erforschung von Pflanzen. Seine Beobachtungsgabe verbunden mit experimentellem Geschick verhalfen Darwin zu botanischen Entdeckungen, für die wir ihn am 200. Geburtstag ebenso ehren sollten wie für seine mit natürlicher und sexueller Selektion verbundene Evolutionstheorie. Für die Pflanzenzüchtung und damit für die Evolution bedeutsa...

  1. From clay bricks to deep underground storage; vom lehmziegel bis zum tiefenlager -- anwendung von ton

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2012-05-15

    This booklet issued by the Swiss National Cooperative for the Disposal of Radioactive Waste NAGRA takes a look at the use of clay strata for the storage of radioactive wastes in deep-lying repositories. First of all, a geological foray is made concerning the history of the use of clay and its multifarious uses. The characteristics of clay and its composition are examined and its formation in the geological past is explained. In particular Opalinus clay is looked at and the structures to be found are discussed. The clay's various properties and industrial uses are examined and its sealing properties are examined. Also, Bentonite clay is mentioned and work done by Nagra and co-researchers is noted.

  2. Kurz zum Klima: Schatzsuche im Ozean – liegt die Zukunft des Bergbaus am Meeresgrund?

    OpenAIRE

    Albrecht-Saavedra, Jutta; Lippelt, Jana; Maierhofer, Leon

    2013-01-01

    Angesichts stark wachsender Nachfrage nach Rohstoffen, insbesondere vonseiten der aufstrebenden Schwellenländer und entsprechend steigender Rohstoffpreise, richtet sich der Blick zunehmend auf die Tiefsee als enorme noch weitgehend unerschlossene Quelle reichhaltiger Rohstoffvorkommen. Der KZK-Beitrag gibt einen Überblick über die Lagerstätten, die Erkundung und die geplante Erschließung der Tiefseeressourcen und weist auf die Risiken eines Ressourcenabbaus in der Tiefsee hin.

  3. Edzard Schaper - mit Massen : Vortrag zum neunzigsten Geburtstag des Dichters in Brig / Claus Sommerhage

    Index Scriptorium Estoniae

    Sommerhage, Claus, 1950-2003

    2005-01-01

    Ettekanne kirjanik Edzard Schaperi 90. sünniaastapäevaks. Ümbertrükk raamatust: Triangulum : Germanistisches Jahrbuch für Estland, Lettland und Litauen. Tartu, 1998. Lehekülgedel numbrid: 192-206

  4. Lenin und Kuhn zum Verhältnis von Krise und Revolution

    Science.gov (United States)

    Engler, Fynn Ole

    In seinem Exil im schweizerischen Gebirgsdörfchen Sörenberg verfasste Lenin, der intellektuelle Kopf der Sozialdemokratischen Arbeiterpartei Russlands (Bolschewiki), im Mai/Juni 1915 seine wohl umfangreichste theoretische Abhandlung über die Ursachen des Zusammenbruchs der Zweiten Internationale. Den konkreten Anlass dafür lieferten die Ansichten führender sozialdemokratischer Arbeiterparteien seit dem Ausbruch des Ersten Weltkriegs im August 1914.

  5. Vom "Deficit Accounting" zum "Generational Accounting ": Eine Anwendung für die Schweiz

    OpenAIRE

    Stefan Felder

    1997-01-01

    The stance of fiscal policy is commonly assessed by the size of the annual budget deficit and public debt. Both indices fail, however, to correctly reflect the long run financial burden of government programs such as social security. An alternative to "deficit accounting" is "generational accounting" which in particular reveals the intergenerational distribution effect of government legislation. The present paper applies generational accounting on the pay-as-you-go financed part of old age pe...

  6. Strength verification of tube bundle heat exchangers; Zum Festigkeitsnachweis von Rohrbuendelwaermeuebertragern

    Energy Technology Data Exchange (ETDEWEB)

    Weiss, E. [Dortmund Univ. (Germany). Chemieapparatebau; Rudolph, J. [TUeV Nord EnSys GmbH und Co. KG, Hannover (Germany)

    2006-06-15

    For a tube bundle heat exchanger with a solid pipe head with and without compensator, the available analytical calculation methods according to AD 2000, DIN EN 13455 part 3 Sect. 13 and Appendix J are evaluated and compared with a detailed numeric analysis. The latter is based on a combination of 3D-CAD/FEA (Autodesk {sup registered} Inventor and ANSYS {sup registered} Workbench Environment AWE) and permits an assessment of the computing time and validity in strength analyses of a complex coupled system of several components. In particular, it is investigated whether the analytical methods prescribed by the technical rules are capable of focusing on the strength problem in critical parts of the structure. It is shown that CAD-FEA coupling on a workbench basis is closer to this goal but is also more complex (modelling, variants calculation). (orig.)

  7. Untersuchungen zum Einfluss der Betriebsbedingungen auf die Schädigung und Instandhaltung von Turboluftstrahltriebwerken

    OpenAIRE

    Müller, Matthias H.

    2013-01-01

    Langfristige Instandhaltungsverträge und der anhaltende Kostendruck haben die Notwendigkeit einer zuverlässigen Vorhersage und einer Reduzierung der Kosten für die Instandhaltung von Turboluftstrahltriebwerken zur Folge. Die Instandhaltungsbedürftigkeit und Zuverlässigkeit von Turboluftstrahltriebwerken wird wesentlich durch die betreibertypischen Betriebsbedingungen und die auftretenden Schädigungsmechanismen beeinflusst. Der Verlauf der Bauteilschädigung wird neben den Betriebsbedingungen d...

  8. Torrefied biomass for use in power station sector; Torrefizierte Biomasse zum Einsatz im Kraftwerkssektor

    Energy Technology Data Exchange (ETDEWEB)

    Witt, Janet; Schaubach, Kay [Deutsches Biomasseforschungszentrum (DBFZ) gemeinnuetzige GmbH, Leipzig (Germany). Bereich Bioenergiesysteme; Kiel, Jaap; Carbo, Michiel [Energy Research Centre of the Netherlands (ECN), Petten (Netherlands); Wojcik, Magdalena [OFI Austrian Research Institute for Chemistry and Technology, Vienna (Austria)

    2013-10-01

    In the torrefaction process biomass is heated up in the absence of oxygen to a temperature of at least 250 C. By combining torrefaction with pelletisation or briquetting, biomass materials can be converted into a high-energy-density bioenergy carrier with improved behaviour in (long-distance) transport, handling and storage. Torrefaction also creates superior properties for biomass in many major end-use applications. The process has the potential to provide a significant contribution to an enlarged raw material portfolio for sustainable biomass fuel production inside Europe by including both agricultural and forestry biomass (residues). The article will briefly introduce the concept and objectives of the project and the different torrefaction technologies involved and then focus on the results obtained within the first project phase of the EU-project SECTOR. This comprises production of torrefied biomass batches, subsequent densification (pelletisation and briquetting), characterisation and Round Robin testing of characterisation methods, initial logistics and end-use performance testing, material safety data sheet preparation and sustainability assessment along the value chain. (orig.)

  9. Tree-ring analysis of crown competition and climatic sensitivity in Pinus strobus and P. sylvestris stands in the Elbe River Sandstone Mountains

    Czech Academy of Sciences Publication Activity Database

    Mácová, Marcela

    2001-01-01

    Roč. 19, č. 1 (2001), s. 103-113 ISSN 1125-7865 R&D Projects: GA AV ČR IAA6005801 Institutional research plan: CEZ:AV0Z6005908 Keywords : dendroclimatology * Pinus strobus * Pinus sylvestris Subject RIV: EF - Botanics

  10. Motivace sportovního výkonu mládeže ve sportovní střelbě

    OpenAIRE

    Redlichová, Monika

    2012-01-01

    The main aim and meaning of this thesis is to provide the organisation of Dukla Plzeň with realistic inputs for work with motivation and stimulation of sports shooters, based on theory and empirical research. Areas focused on by empirical research are sports performance and sports and performance motivation of shooters in Dukla Plzeň. Methods used for researching are a written questionnaire and personal, oral interviewing. The empirical research identifies motives of shooters for participatio...

  11. Mit dem Puppenwagen in die normative Weiblichkeit. Lili Elbe und die journalistische Inszenierung von Transsexualität in Dänemark

    Directory of Open Access Journals (Sweden)

    Sabine Meyer

    2010-12-01

    Full Text Available When the Danish painter Einar Wegener underwent several operations in 1930 in order to subsequently live as Lili Elvenes, the case was of great interest for both the public and the media. In the beginning of 1931 the Danish newspapers Politiken and Ekstra Bladet published a series of efficacious interlinked articles that were staged as a self-contained whole. Along with emphasizing the discursive competence of medicine and legislation this staging focused on the perpetuation of a heteronormative order. Employing the variables sex, gender and desire as well as their interconnections highlights the normalizing processes of (re-construction tied to such a perpetuation. At the same time it discloses staging strategies, which enable an analysis of Lili Elvenes’ agency. By pursuing this notion of agency such an analysis demonstrates how the transsexual subject is embedded in dominant discourses.

  12. Thematic mapper research in the earth sciences: Small scale patches of suspended matter and phytoplankton in the Elbe River Estuary, German Bight and Tidal Flats

    Science.gov (United States)

    Grassl, H.; Doerffer, R.; Fischer, J.; Brockmann, C.; Stoessel, M.

    1987-01-01

    A Thematic Mapper (TM) field experiment was followed by a data analysis to determine TM capabilities for analysis of suspended matter and phytoplankton. Factor analysis showed that suspended matter concentration, atmospheric scattering, and sea surface temperature can be retrieved as independent factors which determine the variation in the TM data over water areas. Spectral channels in the near infrared open the possibility of determining the Angstrom exponent better than for the coastal zone color scanner. The suspended matter distribution may then be calculated by the absolute radiance of channel 2 or 3 or the ratio of both. There is no indication of whether separation of chlorophyll is possible. The distribution of suspended matter and sea surface temperature can be observed with the expected fine structure. A good correlation between water depth and suspended matter distribution as found from ship data can now be analyzed for an entire area by the synoptic view of the TM scenes.

  13. Belege für die Anwesenheit von Eliten des 6./5. Jahrhunderts v. Chr. am Zusammenfluss von Elbe und Moldau in Mittelböhmen

    Czech Academy of Sciences Publication Activity Database

    Chytráček, Miloslav

    2015-01-01

    Roč. 90, č. 1-2 (2015), s. 271-300 ISSN 0079-4848 Grant - others:Rada Programu interní podpory projektů mezinárodní spolupráce AV ČR(CZ) M300021201 Program:M Institutional support: RVO:67985912 Keywords : Bohemia * Late Hallstatt * Early La Tène * cemetery * settlement * Etruscan bronze basins * drinking horns * amber routes * wreath * cult Subject RIV: AC - Archeology, Anthropology, Ethnology Impact factor: 0.103, year: 2015

  14. Observations on the metazoan parasites of the Atlantic salmon (Salmo salar) after its reintroduction into the Elbe River basin in the Czech Republic

    Czech Academy of Sciences Publication Activity Database

    Moravec, František

    2003-01-01

    Roč. 50, č. 4 (2003), s. 296-304 ISSN 0015-5683 R&D Projects: GA ČR GA524/00/0267 Institutional research plan: CEZ:AV0Z6022909 Keywords : Atlantic salmon * helminths * Czech Republic Subject RIV: GJ - Animal Vermins ; Diseases, Veterinary Medicine Impact factor: 0.469, year: 2003

  15. Fish occurrence in the fishpass on the lowland section of the River Elbe, Czech Republic, with respect to water temperature, water flow and fish size

    Czech Academy of Sciences Publication Activity Database

    Prchalová, Marie; Horký, P.; Slavík, O.; Vetešník, Lukáš; Halačka, Karel

    2011-01-01

    Roč. 60, č. 2 (2011), s. 104-114 ISSN 0139-7893. [Česká ichtyologická konference /12./. Vodňany, 19.05.2010-20.05.2010] R&D Projects: GA AV ČR(CZ) 1QS500450513 Institutional research plan: CEZ:AV0Z60170517; CEZ:AV0Z60930519 Keywords : migration * fish * water flow * water temperature * fishpass Subject RIV: DA - Hydrology ; Limnology Impact factor: 0.554, year: 2011 http://www.ivb.cz/folia/60/2/050-2010.pdf

  16. 78 FR 62579 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Shrimp Fishery of the Gulf of...

    Science.gov (United States)

    2013-10-22

    ... units to a NOAA server. The purpose of the proposed changes is to ensure that management of the shrimp... transmission from the ELB units to a NOAA server. The initial installation cost would be approximately $200 per... technical and professional skills needed, the new ELB units do not materially differ from the current ELB...

  17. Politics scenarios for climatic protection V - On the way to structural change, scenarios of greenhouse gas emissions up to the year 2030; Politikszenarien V - auf dem Weg zum Strukturwandel, Treibhausgas-Emissionsszenarien bis zum Jahr 2030

    Energy Technology Data Exchange (ETDEWEB)

    Hansen, P.; Matthes, F.C. (eds.)

    2010-07-01

    For the project 'Politics scenarios for climate protection V' (Politics scenarios V), two scenarios for the development of greenhouse gas emissions in Germany for the period 2005 to 2030 were developed: (a) a 'With-Measure-scenario'; (b) a 'structural-change-scenario'. In the context of the scenario analyses a detailed evaluation of the respective climatic political and energy political measures is performed regarding to their effects on the development of the greenhouse gas emissions in Germany. Methane, laughing gas, halogenated hydrocarbons, perfluorinated hydrocarbons and sulphur hexafluoride are considered for the source sectors energy, industrial processes, product application, agriculture and waste management are considered. Sector-specific model analyses are used in the development of the scenarios. These model analyses are summarized to consistent and complete quantity structure for the power requirement and the emissions of greenhouse gases. Specific investigations are accomplished for the areas space heating and warm water, electrical devices, industry, trade and services, traffic, power generation from renewable energies and the fossil power generation as well as for the volatile emissions of the energy sector, process-related emissions of carbon dioxide, methane and nitrous oxides. For other selected sources (emissions of halogenated hydrocarbons and sulphur hexafluoride as well as the agriculture) results of other investigations were taken over and processed. In the case of an integration and determination of emissions a system integration module and an emission computation model are used in order to consolidate the detailed sector results to a quantity structure. This quantity structure completely is compatible to the German greenhouse gas inventories (according to the conditions of the inventory report 2008).

  18. Towards the zero energy house. A step-by-step sign to the own zero-energy house. 2. rev. and enl. ed.; Der Weg zum Nullenergiehaus. Ein Schritt-fuer-Schritt-Wegweiser zum eigenen Nullenergiehaus

    Energy Technology Data Exchange (ETDEWEB)

    Haas, Karl-Heinz

    2013-05-01

    The European Union wishes that all buildings should become energy self-sufficient up to the year 2020. Why not now? Zero energy cost, zero energy demand, zero emissions, and the shift to a decentralized energy supply are already possible today. The key messages of this book are: the passive house functions; the thermal insulation functions; the zero-energy building functions and offers an enhanced comfort factor. The author of the book under consideration reports on his own experiences with the zero-energy house: From the project management up to all components of a passive house. The author reports on the state of the art of the electricity storage facilities as well as the calculation of the optimal combination of photovoltaics and energy storage.

  19. From the manual meter reading to Smart Metering. Step by step migration concepts for smart technologies; Von der Handablesung zum Smart Metering. Migrationskonzepte zum schrittweisen Ausbau von smarten Technologien

    Energy Technology Data Exchange (ETDEWEB)

    Imholz, Urs [GWF MessSysteme AG, Luzern (Switzerland)

    2012-07-01

    Many Utility companies are planning the modification of their grid for the future demand of decentralized power production of renewable energy. This report is giving attention to the question how to invest already today step by step in smart technologies, based on the existing infrastructure. Multi Utility companies are also asking the question, how to deal with the integration of gas, water and heat into an automated meter reading system. A number of Swiss Utility companies are testing the process of Smart Metering and Smart Grid in pilot projects and field tests. In those tests, the Utility companies will not also cover the technical feasibility but also to check the financial aspects with a business assessment for smart technologies. The Industry is creating together with the Utility companies a sustainable development for the energy landscape of tomorrow. We all know, in the sense of energy distribution, the year 2050 will be the day after tomorrow. (orig.)

  20. Recent publications on environmental law. Bibliography covering the period July 1, 1991 till June 30, 1992; Neue Literatur zum Umweltrecht. Veroeffentlichungen im Zeitraum vom 1.7.1991 bis zum 30.6.1992

    Energy Technology Data Exchange (ETDEWEB)

    Lohse, S. [comp.; Doerner, E. [comp.

    1992-08-01

    The bibliography contains 1685 references to publications covering the following subject fields: General environmental law; environmental law in relation to constitutional law, administrative law, procedural law, revenue law, criminal law, private law, industrial law; law of regional development; nature conservation law; law on water protection; waste management law; law on protection against harmful effects on the environment; atomic energy law and radiation protection law; law of the power industry and the mining industry; laws and regulations on hazardous material and environmental hygiene. (orig.) [Deutsch] Die Bibliographie enthaelt 1685 Literaturzitate zu folgenden Themen: Umweltschutz im allgemeinen; Umweltverfassungsrecht, -verwaltungsrecht, -prozessrecht, -finanzrecht, -strafrecht, -privatrecht, -arbeitsrecht; Recht der raeumlichen Entwicklung; Naturpflegerecht; Gewaesserschutzrecht; Abfallrecht; Immissionsschutzrecht; Atom- und Strahlenschutzrecht; Energie- und Bergrecht, Gefahrstoff- und Umweltgesundheitsrecht. (orig.)

  1. Comprehensive customer service as a key to success in the energy market; Umfassender Kundenservice als Schluessel zum Erfolg im Energiemarkt

    Energy Technology Data Exchange (ETDEWEB)

    Niedergesaess, Ulrike; Pollmann, Birgitt [imug Beratungsgesellschaft fuer sozial-oekologische Innovationen mbH, Hamburg (Germany)

    2011-01-15

    Quality of service is becoming an increasingly important issue among power supply companies because it represents an effective means of distinguishing oneself from competitors. Moreover, insights gained from service work can provide decisive information for the control of entrepreneurial processes. A new study on customer service offers guidance to energy suppliers seeking to achieve an outstanding market position.

  2. Investigations of the EPR reference concept (KATS experiments); Untersuchungen zum EPR-Referenz-Konzept (KATS-Experimente)

    Energy Technology Data Exchange (ETDEWEB)

    Fieg, G.; Werle, H.; Huber, F.

    1995-08-01

    The reference concept of an EPR core catcher envisages the spreading of the melt on a protective layer (150 m{sup 2} area) and water cooling from above. Two variants are considered: Spreading on a dry area and on an area covered by water of condensation (1 cm depth). For the reference concept the KATS experiments are performed with thermite melts. After initial problems had rendered it difficult to interprete the first test, repeated tests have been successful. (orig.)

  3. New results by adding additives to rapidly biodegradable lubricants; Neue Ergebnisse zum Thema: Additivierung von biologisch schnell abbaubaren Schmierstoffen

    Energy Technology Data Exchange (ETDEWEB)

    Fessenbecker, A.; Rossrucker, T.; Korff, J.

    1999-01-01

    Fluids of two different chemical categories are currently established in the market as the basic oils for rapidly biodegradable lubricants: Polyglycols and organic esters, the latter representing the more significant volume. The wide range of substances in ester chemistry and the resulting variety in properties such as oxidative stability, hydrolytic stability, corrosion protection and wear protection properties necessitate a differentiated view of, for instance, the additives used. Standard lubricant tests are used to analyze these substances and properties. Classification in three different groups helps us come to clear terms with the wide variety of esters available. - Unsaturated native esters (rapeseed oil, sunflower seed oil, etc.); - unsaturated synthetic esters (TMP oleates, etc.); - saturated synthetic esters (dicarboxylic acid esters, etc.). The test result for the different additives, among them readily biodegradable ones, in typical representatives of the above ester classes are compared as the basis for evaluation of sometimes widely varying behaviour in each basic fluid. Attempts are made to analyze various interrelationships between additives and technical properties, e.g. influence of the choice of additives on the hydrolytic stability of esters. Acidic or highly alkaline additives catalyze the destruction of esters and should be avoided. Tests acc. to-ASTM-D 2619 (`Coca-Cola` Test) and ASTM-D 943 (`TOST-Test`) reveal ways to improve the hydrolytic properties with hydrolytic protoction additives. The oxidative behaviour of esters with varying degrees of saturation makes it necessary to optimize the antioxidants for a given system of basic oil. This is shown clearly on the basis of trial results with standardized lubricant oxidation tests. (orig.) [Deutsch] Als Basisoele fuer biologisch schnell abbaubare Schmierstoffe haben sich derzeit am Markt zwei chemisch unterschiedliche Kategorien von Fluessigkeiten etabliert: Polyglykole und organische Ester. Den letzteren kommt dabei die mengenmaessig groessere Bedeutung zu. Die grosse Vielfalt der Esterchemie und die dabei auftretenden Unterschiede in den Eigenschaften, wie z.B. Oxidationsstabilitaet, Hydrolysestabilitaet, Korrosionsschutz- und Verschleissschutzeigenschaften, machen eine differenzierte Betrachtung u.a. auch der Additivierung notwendig. Diese werden anhand von Standardschmierstofftests beleuchtet. Um die grosse Vielfalt der Ester auf ein ueberschaubares Mass zu reduzieren, wird eine Einteilung in drei Klassen vorgenommen: - Ungesaettigte, native Ester (Rapsoel, Sonnenblumenoel etc.) - ungesaettigte, synthetische Ester (TMP-Oleate etc.) - gesaettigte, synthetische Ester (Dicarbonsaeureester etc.). Testergebnisse von verschiedenen, z.T. gut biologisch abbaubren Additiven in typischen Vertretern der oben genannten Esterklassen werden einander gegenuebergestellt und das z.T. sehr unterschiedliche Ansprechverhalten in den jeweiligen Grundfluessigkeiten diskutiert. Es wird versucht, verschiedene Zusammenhaenge von Additivierung und technischen Eigenschaften, wie z.B. Beeinflussung der Hydrolysestabilitaet von Estern durch die Auswahl der Additive, zu beleuchten. Saure oder stark alkalische Additive wirken als Katalysatoren fuer die Zerstoerung der Ester und sollten gemieden werden. Moeglichkeiten zur Verbesserung der Hydrolyseeigenschaften werden anhand von Tests nach ASTM-D 2619 (`Coca-Cola-Test`) und ASTM-D 943 (`TOST-Test`) durch ein Hydrolyseschutzadditiv aufgezeigt. Das Oxidationsverhalten von Estern mit unterschiedlichem Saettigungsgrad macht eine Optimierung der Antioxidantien fuer ein gegebenes Grundoelsystem notwendig. Dies wird anhand von Versuchsergebnissen mit standardisierten Schmierstoffoxidationstests veranschaulicht. (orig.)

  4. Nitrogen dioxide - long-term guideline value for health protection; Stickstoffdioxid - (Langzeit-)Richtwert zum Schutz der menschlichen Gesundheit

    Energy Technology Data Exchange (ETDEWEB)

    Tvrdy, C.; Hauck, H.; Neuberger, M. [Vienna Univ. (Austria). Inst. fuer Umwelthygiene

    1999-10-01

    On behalf of the Ministry of Environment the Austrian Academy of Science published guideline values for nitrogen dioxide in 1988. The scientific database concentrated on short-term effects of NO{sub 2} at that time. After checking the current literature it was clear that new data especially for long-term effects of NO{sub 2} were available which should lead to a limitation of an annual average. Two Austrian studies on children from Linz (capital of Upper Austria) showed that high long-term concentrations of NO{sub 2} were negatively associated with the flow parameters of terminal airways in spirometry (MEF{sub 25} and MEF{sub 50}) on a significant level. In addition the children showed an improvement in growth-dependent increase of lung function parameters when long-term NO{sub 2}-concentrations in the ambient air could be decreased by more than 40 {mu}g/m{sup 3}. The most pronounced benefit could be seen when the ambient level of NO{sub 2} decreased during periods of accelerated growth. Based on these and other results summarized in this review, the Austrian Academy of Science recommended an annual average of 30 {mu}g/m{sup 3} for NO{sub 2} in the ambient air not to be exceeded for health protection. (orig.) [German] In Oesterreich werden von der Oesterreichischen Akademie der Wissenschaften (OeAW) im Auftrag des Bundesministeriums fuer Umwelt, Jugend und Familie fuer die konventionellen Luftschadstoffe wirkungsbezogene Immissionsgrenzkonzentrationen erarbeitet, die den jeweiligen Stand der (medizinischen) Wissenschaft repraesentieren. Ausgehend vom Basiswerk aus 1988 wurde 1998 eine neue Literaturstudie erstellt, die auch Publikationen der letzten Jahre umfasste. Anhand dieses neuen Datenmaterials zeigte sich, dass die Einfuehrung einer Langzeitimmissionsgrenzkonzentration aus umwelthygienischer Sicht notwendig war. In zwei Studien an Linzer Kindern konnte festgestellt werden, dass einerseits hohe NO{sub 2}-Konzentrationen signifikant negativ mit den Lungenflowparametern der kleinen Atemwege (MEF{sub 25} und MEF{sub 50}) korrelierten, andererseits Verbesserungen der Luftqualitaet (Reduktion der NO{sub 2}-Konzentration um mehr als 40 {mu}g/m{sup 3}) auch einen positiven Einfluss auf die wachstumsbedingte Entwicklung der Lungenfunktion der beobachteten Kinder zeigten. Trat die Verbesserung der Luftqualitaet waehrend einer Phase starken (Lungen-)Wachstums auf, war der Benefit besonders gross. Gestuetzt auf diese und andere im folgenden Uebersichtsbeitrag zusammengefasste epidemiologische Ergebnisse wurde von der oesterreichischen Akademie der Wissenschaften ein Langzeitmittelwert von 30 {mu}g/m{sup 3} fuer NO{sub 2} als wirkungsbezogene Immissionsgrenzkonzentration vorgeschlagen. (orig.)

  5. Materials for the field test - students' attitudes to nuclear power stations. Materialien zum Unterrichtsversuch: Kernkraftwerke in der Einstellung von Jugendlichen

    Energy Technology Data Exchange (ETDEWEB)

    Hoffmann, L; Kattmann, U; Lucht, H; Spada, H [Kiel Univ. (Germany, F.R.). Inst. fuer die Paedagogik der Naturwissenschaften (IPN)

    1975-01-01

    This working paper contains all the materials developed for and used in the field test of 'Student Attitudes toward Atomic Power Stations'. This research is a component of a larger project called 'Attitudes and Attitudes Change with Regard to Problems of Energy Supply and their Consequences for our Environment'. A central aim of this project is the development of instrumental strategies enabling the student to build up in this field a critically reflective and active behavior and attitudes based on sound problem consciousness. These instrumental strategies are derived from theories of social, learning and environmental psychology. A concrete result of these efforts are the materials of the field test mentioned above. They include: a) The draft of an instructional unit 'Atomic Power Stations - Prosperity or Disaster' with - a booklet on the subject matter for students and teachers - a paper on the contents of the instructional unit and their sequence - information for the students concerning the aims of the investigation - working materials for the students - reading materials for the teachers informing them about the proposed instructional strategies based on the psychological theories: (1) model-learning and the structuring of knowledge, (2) how to activate and motivate students, (3) the stabilization of attitudes and (4) small group work. b) Instruments for testing and observation. These instruments were used within a criterion-oriented evaluation and for a test of the effects of the different proposed items used in the instruction.

  6. Analysis of the water balance of polymer electrolyte membrane fuel cells; Untersuchung zum Wasserhaushalt von Polymerelektrolytmembran-Brennstoffzellen

    Energy Technology Data Exchange (ETDEWEB)

    Hakenjos, A.

    2006-09-14

    Within this thesis, instruments for the localised characterisation of fuel cells and fuel cell stacks have been created. The simultaneous multi-channel impedance spectroscopy was implemented and applied to fuel cells for the first time. A measurement device has been developed that can be used to simultaneously apply various localised measurement methods to fuel cells during operation. Within this work, mainly current density and localized impedance measurements were used. Additionally, the temperature distribution of the active fuel cell area was determined and the water condensation was visualised. Several fuel cells have been developed, constructed and assembled to carry out localised characterisation. An algorithm has been developed to evaluate impedance spectra that separate the processes in the fuel cell according to their different time constants. This algorithm is based on a system of physical model equations that provide time- and location-dependent descriptions of the different processes in the cell. This allows the quantitive extraction of physical parameters from the impedance spectroscopy results. To perform localised simulation, a three-dimensional, two-phase, stationary model was adopted cell. A simple one-dimensional fuel cell geometry was used to demonstrate that the three-dimensional model reliably describes the processes under various operation conditions. The model validation was also successfully carried out for various complex fuel cell geometries. With the localised characterisation methods, air flow field geometries of fuel cells were successfully analysed. It could be explained how the microporous coating of the diffusion layer influences the current density distribution. The water balance of a number of different gas flow geometries was successfully characterised. As a result, an optimised flow field design with a double meander has been developed. The water content has been improved so that the efficiency is increased, and the current density distribution is more homogeneous. Multiple meanders are known from other technical applications. The localised characterisation carried out in this thesis demonstrated for the first time the superiority of this geometry. Here, the ratio of channel rib width is important, and the double meander design provides an optimal gas supply due to higher convective transport in the diffusion layer. This geometry was superior to all other evaluated air flow fields with regard to the power density and the homogeneity of the current production in the active area. It could be shown that geometries with parallel channels have considerable disadvantages. Individual channels may be clogged by liquid water. Since no considerable pressure builds up in the clogged channel, the water is not reliably removed. This problem is exacerbated with the interdigitated structure where the dead-end channels are even more easily clogged. Therefore, such flow field designs cannot provide a high fuel cell power density. Furthermore, the simultaneous impedance spectroscopy was used to determine a flooding event of a fuel cell in a stack a few minutes before the flooding event resulted in a reduced power production in this cell. The model-based evaluation of the measured impedance spectra was used to clearly identify the flooding event and quantify the reduction of the open space in the porous electrode of the fuel cell. Due to these findings, a new control concept for fuel cells could be developed that is based on the impedance measurement. It was shown that the impedance spectroscopy can be used to identify malfunctions in advance caused by liquid water. The air flow variation is a suitable instrument to actively intervene in the fuel cell operation and to prevent flooding events. Controlling the fuel cell operation using a combination of the impedance spectroscopy and the air flow variation is an ideal instrument to stabilise the fuel cell operation at a high level. (orig.)

  7. Diesel fuels in technological transformation to the post-fossil age; Dieselkraftstoffe im technologischen Uebergang zum postfossilen Zeitalter

    Energy Technology Data Exchange (ETDEWEB)

    Jacob, Eberhard [Emissionskonzepte Motoren, Krailling (Germany)

    2012-11-01

    Improved diesel fuels and engine oils in combination with DPF-SCR-exhaust systems facilitate further potential on the long-term stability of limited emissions and on reducing fuel consumption when looking at lowest-emission diesel engines. The mineral oil industry has made great advances in improving the quality of fuels; especially with the introduction of sulfur-free fuels in 2001, significant progress was made. At the same time, political decision-makers have counteracted this positive trend by imposing the obligation to add low-quality bio-components to fuels on the pretext that these would lower CO{sub 2}-emissions. The addition of biodiesel (FAME) in particular, lowers the quality of diesel. The main reasons for this quality degradation are the low volatility and the adverse decomposition characteristics of FAME. If vegetable oils are hydrogenated to form HVOs (hydrotreated vegetable oils), a high-grade alkane mixture, these disadvantages can be overcome. Mineral-oil based diesel fuels will remain our principal source of supply at least until 2040. One of the quality targets for standard diesel will be high-quality diesel fuels, such as premium diesel which is already commercially available and whose boiling limit is {proportional_to}330 C. The production of synthetic diesel by means of the Fischer-Tropsch process will become an increasingly attractive method, although it has stagnated over the past few years. The production of these premium diesel fuels and the FT synthesis require considerable quantities of additional hydrogen and a lot more process energy. In the coming decade, natural gas will be primarily used for this purpose (as natural gas prices will decline and exploration and processing costs for oil will continue to climb). As new refineries and FT plants are being mainly established in the Earth's sunbelt, the introduction of solar thermal generated process heat can significantly enhance the efficiency of the FT plants. High-temperature electrolysis of water, which can convert electricity into chemical energy at an efficiency rate of 80%, constitutes one key technology for decarbonization. The oxygen that is released during this process can be used for facilitating the separation of CO{sub 2} in oxyfuel plants. Separated CO{sub 2} can be converted into FT diesel using the CWtL process. Methanol and ethanol can be produced from waste materials containing lignocellulose through gasification or enzymatic treatment, but cannot be directly added to diesel fuels. Thanks to chemical conversion of these alcohols into oximethylene ether (OME) and other polyethers, multi-functional diesel additives can be produced which significantly lower soot formation during combustion in the engine, facilitate the continuous regeneration of particulate traps, increase cetane numbers and improve cold starting behaviour. The higher polyalkylene glycoles, PAG which show a similar chemical structure, have a bright future as base oils for ash-free and non-coking engine oils. (orig.)

  8. 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

    Doubtless assistance systems should contribute to the safety of car driving. They support simultaneously a comfortable use of the car. Especially the operation comfort is characterised by clarity, self explaining, robustness against errors, and so on. Operation comfort doesn't give an inessential contribution to a reliable and appropriate interaction between driver and vehicle that means also a contribution to a reliable function of the total system and thereby to safety. Therefore the subjective experience of assistance systems is of excellent importance with view on the subjective and public confidence in new assistance systems. Are they seen rather as a gain of comfort, as it is preferred by the producer by reasons of production related liability, or as an easing of the driver's behaviour providing safety? Consists in the last called tendency a new kind of danger? In this connection juristic problems may not be unmentioned. The driver may not or not completely be called to account for procedures on which he has no influence or thinks to have no influence. In this case the account for the not compensated damage is contributed to the producer of the system. Therefore, by considering human characteristics and abilities of the driver during the development of assistance systems unwanted juristic consequences should be prevented. (orig.) [German] Assitenzsysteme sollen zweifellos einen Beitrag fuer die Sicherheit des Autofahrers liefern. Zugleich dienen sie aber auch fuer eine komfortable Nutzung des Fahrzeugs. Speziell der Bedienkomfort ist durch leichte Verstaendlichkeit, Selbsterklaerbarkeit, Fehlerrobustheit u.ae. charakterisiert. Durch ihn wird ein nicht unwesentlicher Beitrag zur sicheren und zweckdienlichen Interaktion zwischen Fahrer und Fahrzeug geleistet, also auch ein Beitrag fuer die zuverlaessige Funktion des Systems und damit fuer die Sicherheit. Von herausragender Bedeutung insbesondere im Hinblick auf das subjektive und das oeffentliche 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.)

  9. Evangelische Grab- und Gedenkkultur zum Ersten Weltkrieg in Württemberg: der Verein für christliche Kunst

    Directory of Open Access Journals (Sweden)

    Schilling, Jörg

    2017-07-01

    Full Text Available The mission of the Verein für christliche Kunst in der evangelischen Landeskirche Württembergs, founded in 1857, was to advise Protestant parishes on aesthetic questions. During WW1 it started to focus not only on graves and memorials but increasingly also on symbolic forms like medals and decorations. The association instructed architects to design ideal examples and standard models. The intention was to prevent both cheap industrial production and exaggerated pathos. By avoiding graphic representations of Christian virtues and by providing more homogeneous and simple designs, it hoped to strengthen the corporate feeling of the Protestant community.

  10. Why branding will become a success driver in the electricity market; Warum Markenfuehrung im Strommarkt zum Erfolgstreiber wird

    Energy Technology Data Exchange (ETDEWEB)

    Stroedter, K. [Marketing- und Strategieberatung Vivaldi Partners, Duesseldorf (Germany); Zinnbauer, M. [Marketing- und Strategieberatung Vivaldi Partners, Muenchen (Germany)

    2008-12-15

    New suppliers, increased transparency, the emergence of a not-so-loyal customer generation and rising prices are all factors that promote consumers' willingness to change supplier. Furthermore, due to the ease of obtaining information through the media consumers nowadays know more and more about suppliers and prices. In order to avoid a purely price-driven competition it is vital for power suppliers both large and small to position themselves clearly in the market. For this purpose they have to know about positioning trends in the German market and which market strategies promise success.

  11. Zum 215. Gebutstag von Admiral Ferdinand Baron von Wrangell : (29. Dezember 1797 - 25. 25. Mai 1870) / Peter Krienitz

    Index Scriptorium Estoniae

    Krienitz, Peter

    2012-01-01

    Admiral Ferdinand Baron von Wrangellist tema 215. sünniaastapäeva puhul. Silmapaistavast Kirde-Siberi uurijast. Tema poliitilisest tegevusest ja elust Roela mõisas. Ferdinand Baroni poolt seatud viisil tähistati jõulusid Roelas kuni 1944. aasta lõpuni.

  12. Design of turbine foundations in seismic zones. Earthquake protection strategies; Planung von Turbinenfundamenten in Erdbebengebieten. Strategien zum Erdbebenschutz

    Energy Technology Data Exchange (ETDEWEB)

    Basu, Ashish Kumar [GERB Vibration Control Systems, Noida (India); Nawrotzki, Peter [GERB Schwingungsisolierungen GmbH und Co. KG, Berlin (Germany); Siepe, Daniel [GERB Engineering GmbH, Essen (Germany)

    2011-04-15

    This contribution reveals basic principles of elastic support systems and applications on power plant equipment and buildings in medium and high seismic areas. Spring-damper combinations with special stiffness properties are used to reduce seismic acceleration levels of turbine components and other safety or non-safety related structures. For turbine buildings, the integration of the turbine substructure into the machine building can additionally reduce the relative displacement between both the structures as well as the stress levels in all structural members. (orig.)

  13. Erster und zweiter Sieger. Zum Byzantinisch-Karolingischen bündnis bezüglich Bari 870-871

    Directory of Open Access Journals (Sweden)

    Kislinger Ewald

    2013-01-01

    Full Text Available The growth of Arab power in Southern Italy and even Dalmatia menaced the Byzantine Empire as well as Carolingian Italy and led both to an alliance in 869/870. Their attempt, however, to conquer Bari in a joint attack failed in 870 (not 869 due to a lack of coordination. An exchange of letters, which followed between Basil I and Louis II, reveals cultural and ideological alienation between christian East and West.

  14. Bats - findings and knowledge gaps in the field of bat behaviour; Perspektive Fledermaeuse - Erkenntnisse und Wissensluecken zum Verhalten

    Energy Technology Data Exchange (ETDEWEB)

    Bergen, F. [ecoda Umweltgutachten GbR, Dortmund (Germany)

    2005-07-01

    There may be conflicts between wind power utilisation and the behaviour patterns of bats resp. the need for bat protection. The subject should be discussed free of emotions. Research is still required as there is still a lack of knowledge concerning the effects of wind power systems on bats. (orig.)

  15. Combined heat and cold generation using vertical ground loops; Gekoppelte Kaelte- und Waermeerzeugung mit Erdwaermesonden: Handbuch zum Planungsvorgehen

    Energy Technology Data Exchange (ETDEWEB)

    Good, J.; Nussbaumer, T. [Ingenieurbuero Verenum, Zuerich (Switzerland); Huber, A.; Widmer, P. [Huber Energietechnik, Zuerich (Switzerland); Truessel, D. [Kaelte-Waerme-Technik AG, Belp (Switzerland); Schmid, Ch. [Buero fuer Energietechnik, Winterthur (Switzerland)

    2001-07-01

    This handbook produced for the Swiss Federal Office of Energy (SFOE) addresses the problem of designing systems that produce heat and cold using integrated systems. The idea of using a single heat pump system instead of separate heating and refrigeration systems is introduced. Typical applications such as bakeries, restaurants and grocery stores are discussed. The use of vertical bore-hole heat-exchangers as a source of heat in winter and as a source of cold in summer is recommended. The handbook shows how heating and cooling needs can be calculated and examines the energy balance of a ground-coupled heat pump system. The design and calculation of an integrated system is described. A practical example of a system realised in a motor way restaurant near Berne, Switzerland, is given. Here, a heat pump-based system produces cold for refrigeration and heat for space heating and hot water. To enable comparisons to be made between different systems, the notions of energy efficiency ratio for heating and cooling (GLZ) and performance efficiency ratio for heating and cooling (GAZ) are introduced. An appendix provides useful information on simulation tools, temperature characteristics, the calculation of hot water demands, heat recovery and details on the energy consumption of refrigeration and deep-freeze equipment.

  16. Zytoprotektion mit Amifostin (Ethyol®) in der Chemotherapie: Meta-Analyse zum pharmakokinetischen Interaktionspotential mit Zytostatika.

    Science.gov (United States)

    Czejka, Martin; Schüller, Johannes; Kletzl, Heidemarie

    2017-08-25

    The cytoprotective agent amifostine (AMI) is capable to protect healthy cells (contrary to tumor cells) due to higher activity of alkaline phosphatase at the membrane site of normal cells. In seven clinical trials the influence of AMI on the pharmacokinetics of different cytostatics was investigated. Preadministration of AMI increased Cmax of doxorubicin (+ 44 %, p < 0.06), epirubicin (+ 31 %, P < 0.08), mitomycin C (+ 41 %, p < 0.01) and docetaxel (+ 31 % and + 17 %, not significant). In contrary, the peak concentration of pirarubicin , the tetrahydropyranyl-prodrug of doxorubicin was decreased (- 50 %, P < 0.03), leading to an equal higher concentrationof doxorubicin in the blood . In accordance to the peak concentrations, the AUC'ast was increased by chemoprotection: doxorubicin + 53 % (p < 0.01) and epirubicin + 23 % (not significant), docetaxel + 25 % and + 31 % (not significant). AUC'ast of mitomycin C and paclitaxel seemed to be unaffected by preadministered AMI. A particular inhibition of the protein binding by AMI has been identified as one reason for higher serum concentrations of anthracycline drugs. After cytoprotection, a possible increase of the cytostatic's Serum concentrations should be taken into account for optimal dosage schedules.

  17. Der vergeschlechtlichte Staat: zum Verhältnis von Freiheit, Geschlecht und Staat bei Jean-Jacques Rousseau

    OpenAIRE

    Nagy, Nicola

    2017-01-01

    "Im Beitrag werden die strategischen und systematischen Funktionen sowie die Bedeutung der von Jean-Jacques Rousseau beschriebenen Geschlechtscharaktere und der darauf bauenden Ordnung des Geschlechterverhältnisses im Rahmen der konkreten Ausgestaltung und Umsetzung seines Modells des Staates sichtbar gemacht. Bemerkenswert ist die Tatsache, dass die Möglichkeitsbedingungen (Gemeinwohlorientierung) von Rousseaus Republik, mit deren Hilfe die Herstellung und der Erhalt der bürgerlichen Freihei...

  18. Device for removing pyrolysis residues from a pyrolysis plant. Vorrichtung zum Austragen von Verschwelungsrueckstaenden aus einer Pyrolyseanlage

    Energy Technology Data Exchange (ETDEWEB)

    Eisenmann, A

    1985-03-28

    The purpose of the invention is a device for removing the hot solid pyrolysis residues of heterogeneous composition from an hermetically sealed pyrolysis plant, especially one for pyrolysing refuse and other materials. In order to achieve continuous permanent operation with hermetic sealing of the system to the atmosphere, the device according to the invention has a lock on the funnel-shaped floor of a shaft, which has a worm conveyor after it. There is a spray device in an hermetically sealed chamber of the lock, through which the hot pyrolysis residues are sprayed, in order to bind the dust particles and simultaneously to reduce the temperature. A sludge pump is connected to the worm conveyor, which removes the material to silos.

  19. Energy storage. Technologies and potentials to compensate supply and demand; Energiespeicherung. Technologien und Potentiale zum Ausgleich von Angebot und Nachfrage

    Energy Technology Data Exchange (ETDEWEB)

    Kruhl, Joerg [E.ON New Build and Technology, Gelsenkirchen (Germany); Doll, Markus [RWE Power AG, Essen (Germany)

    2011-07-01

    Future energy systems will be based on a high proportion of renewable and fluctuating power generation. This will result in system states in which the merging of supply and demand represents a significant challenge. Energy storages are a measure to overcome this challenge. However, energy storages are not the sole solution. So there exist alternative measures such as network expansion and load management as a cost-effective solutions. Energy storages as an important building block for future energy systems must be a function of other measures such as network expansion and demand management designed specifically. This includes a financial support for technical development and also the attendance of the launch by means of appropriate economic incentives.

  20. Electricity-saving measures for electrical drives - Market analysis; Massnahmen zum Stromsparen bei elektrischen Antrieben. Marktanalyse in der Industrie. Schlussbericht

    Energy Technology Data Exchange (ETDEWEB)

    Baumgartner, W.; Ebert Bolla, O.; Puenzieux, P.

    2006-07-01

    This final report for the Swiss Federal Office of Energy (SFOE) presents the results of work done on an empirical analysis of the results of a small-scale survey of industries as well as on various interviews with experts. Topics covered include the number of electrical motors in use in Switzerland, the number held in reserve, power consumption, part-load and over-dimensioning, operational factors, control strategies and the use of standardised motors. The data collected is presented in tabular and graphical form. Possibilities of making savings are discussed, as are obstacles to such work. Finally, ideas for an efficiency campaign are presented.

  1. The draft of the new electricity market law at a glance; Der Entwurf zum neuen Strommarktgesetz im Ueberblick

    Energy Technology Data Exchange (ETDEWEB)

    Voss, Jan Ole; Kirschnick, Stephan [Becker Buettner Held, Berlin (Germany)

    2016-02-15

    The conclusion of the new electricity market law is: ''The market will judge it''. A refined market where the renewable energies are increasingly integrated, shall guarantee reasonable prices, security of supply and environmental protection. Whether this can be achieved in reality, is highly questionable. This would require that the overcapacity of the German electricity market confirmed in several reports and the wholesale price for electricity recovers the long term. Only then can it be assumed that investment incentives arise in the construction of modern and efficient power generation plants. Such a ''market-faithful'' system is also absolutely dependent on the behavior of neighboring European countries. Only when these go along the path and affect the price and capacity development not regulatory, the completion of a functioning, liberalized EU internal market for electricity can succeed. [German] Das Fazit des neuen Strommarktgesetzes heisst: ''Der Markt soll es richten''. Ein weiterentwickelter Markt, in den die erneuerbaren Energien zunehmend integriert werden, soll fuer guenstige Preise, Versorgungssicherheit und Umweltschutz sorgen. Ob das in der Realitaet gelingen kann, ist durchaus fraglich. Dies wuerde erfordern, dass die in mehreren Gutachten bestaetigten Ueberkapazitaeten am deutschen Strommarkt abgebaut werden und der Grosshandelspreis fuer Elektrizitaet sich langfristig erholt. Nur dann kann davon ausgegangen werden, dass Investitionsanreize in den Bau von modernen und effizienten Stromerzeugungsanlagen entstehen. Ein solch ''marktglaeubiges'' System ist zudem zwingend von dem Verhalten der europaeischen Nachbarstaaten abhaengig. Nur wenn diese den eingeschlagenen Weg mitgehen und die Preis- und Kapazitaetsentwicklung nicht regulatorisch beeinflussen, kann die Vollendung eines funktionierenden, liberalisierten EU Binnenmarktes fuer Strom gelingen.

  2. Home automation becomes home entertainment. Emotion replaces function; Hausautomation sucht Naehe zum Home-Entertainment. Emotion verdraengt Funktion

    Energy Technology Data Exchange (ETDEWEB)

    Schmid, W.

    2006-09-15

    Home automation commonly applies to control of lighting, shading, heating, safety etc., i.e. a purely functional concept. Recently, many systems have come to integrate home entertainment as well: Bang and Olufsen and Revox meets heating, light, and ventilation. (orig.)

  3. Volume celebrating the 60th birthday of Professor Dr. Franz Fie; Professor Dr. Franz Fiedler zum 60. Geburtstag

    Energy Technology Data Exchange (ETDEWEB)

    Beheng, K.D. [ed.

    1998-01-01

    This report was compiled in honor of Professor Dr. Franz Fiedler on the occasion of his 60th birthday on 7 January 1998. Its contributions deal with mesoscale modelling, the propagation of air pollutants, measurements of precipitation using radar, and prediction models. (orig./KW) [Deutsch] Dieser Bericht wurde aus Anlass des 60. Geburtstags von Herrn Prof. Dr. Franz Fiedler am 7. Januar 1998 zusammengestellt. Die Beitraege behandeln mesoskalige Modellierung, Ausbreitung von Luftschadstoffen, Niederschlagsmessung mit Radar und Vorhersagemodelle. (orig.)

  4. Electronic brakes. From ABS to brake-by-wire. 2. ed.; Elektronische Bremssysteme. Vom ABS zum Brake-by-Wire

    Energy Technology Data Exchange (ETDEWEB)

    Reichel, H.R.

    2003-07-01

    The book reports trends in vehicle brakes from 1968 to 1998. This was the age of the electronic revolution. The book presents conventional brakes, antiblocking systems (ABS), antislip systems (ASS), brake assistants (BAS), dynamic control systems, and brake-by-wire systems. [German] Das Buch berichtet ueber Entwicklungen an Fahrzeugbremsanlagen in der Zeitspanne von 1968 bis etwa 1998. Diese Zeit war gepraegt vom Vordringen der Elektronik in die Bremsen, was fuer Hersteller und Kunden eine Revolution bedeutete. Behandelt sind: (a) Konventionelle Bremsanlagen, (b) Antiblockiersysteme (ABS), (c) Anti-Schlupf-regelungen (ASR), (d) Bremsassistenten (BAS), (e) Fahrdynamikregelungen (FDR, ESP), (f) Brake-by-Wire (orig.)

  5. Entwicklung einer schnell schaltenden Bremse und Kupplung für Linearbewegungen zum Überlastschutz in Werkzeugmaschinen

    OpenAIRE

    Dennig, Hans-Jörg

    2009-01-01

    Große Kollisionskräfte aufgrund eines Bedien- oder Programmierfehlers sind ein zentrales Problem bei der modernen Produktion mit hocheffizienten Werkzeugmaschinen. Dadurch entstehen teure Reparaturen vor allem an der Hauptspindel und den Spindelmutter-Antrieben, was zu langen Ausfallzeiten an der betroffenen Maschine führt. Eine Umfrage bei insgesamt 23 Anwendern und Herstellern von Werkzeugmaschinen ergab, dass die Service- und Ersatzteilkosten durch eine heftige Kollision bis zu 23.000 € be...

  6. Device for generating auxiliary electrical energy on a vehicle. Anordnung zum Erzeugen elektrischer Hilfsenergie auf einem Fahrzeug

    Energy Technology Data Exchange (ETDEWEB)

    Lichtenberg, A

    1980-10-23

    The invention refers to a device for generating auxiliary electrical energy in a generator, which is situated in a vehicle, particularly a magnetic levitating vehicle (MAGLEV vehicle) connected to a magnetic pole rotor. This magnetic pole rotor is moved without touching relative to a fixed motor track made as a track, where, using the electro-dynamic interaction between the magnetic pole rotor and the track motor part, the torque generated by the magnetic pole rotor is transmitted to the generator. The purpose of the invention is to introduce the generation of auxiliary electrical energy on board vehicles without using propellers without contact and without a wandering field winding from vehicle movement. According to the invention, this is achieved by the track motor part being an inactive electrically conducting rail and the torque being transmitted using the eddy current effect. The magnetic pole rotor is made as a magnetic pole rotor without iron and is arranged above an electrically conducting support rail of an electrodynamic support system.

  7. Philologie im Horizont der Geschichtlichkeit von Sprache und Text: zum Tagungsband von Wulf Oesterreicher und Maria Selig

    Directory of Open Access Journals (Sweden)

    Olaf Müller

    2016-03-01

    Full Text Available Wulf Oesterreicher und Maria Selig, Hrsg., Geschichtlichkeit von Sprache und Text: Philologien – Disziplingenese – Wissenschaftshistoriographie (Paderborn: Wilhelm Fink, 2014, 332 S.

  8. Vom Sondersammelgebiet zum Fachinformationsdienst für die Wissenschaft. Strategien, Prozesse, Verfahren – ein persönlicher Erfahrungsbericht

    Directory of Open Access Journals (Sweden)

    Ivo Vogel

    2014-12-01

    Full Text Available Der folgende Artikel stellt den gesamten Prozess dar, den das Sondersammelgebiet Recht der Staatsbibliothek zu Berlin - Preußischer Kulturbesitz als Antragsteller eines von der Deutschen Forschungsgemeinschaft geförderten Fachinformationsdienstes für die Rechtswissenschaft durchlaufen ist. Beschrieben werden insbesondere die Darstellung der Ausgangslage für die Antragstellung, die Integration in das hausinterne Projektmanagement, die Maßnahmen und Strategien für die Ermittlung der Inhalte des Antrages sowie – einschließlich zeitlicher und inhaltlicher Aspekte − die Antragseinreichung, das Begutachtungsverfahren, das Antragskolloquium in Bonn und die abschließende Entscheidung durch die Gremien der Deutschen Forschungsgemeinschaft. The following article presents the complete process which the Law Special Subject Collection of the Berlin State Library - Prussian Cultural Heritage has passed through as an applicant of the program Scientific Information Services funded by the Deutsche Forschungsgemeinschaft. The article describes the starting position by the application process, the integration of these endeavors into the in-house project management, preparations and strategies for determining the content of the application as well as – including the temporal and substantive aspects of the submission − the review process, the Application Colloquium in Bonn and the final decision by the statutory bodies of the Deutsche Forschungsgemeinschaft.

  9. Zum keltischen Erbe in der älteren Römischen Kaiserzeit in Böhmen und Mitteleuropa

    Czech Academy of Sciences Publication Activity Database

    Salač, Vladimír

    2011-01-01

    Roč. 63, č. 2 (2011), s. 256-283 ISSN 0323-1267 Institutional research plan: CEZ:AV0Z80020508 Keywords : Late La Tène period * Celts * Germans * culture heritage * Bohemia * Central Europe Subject RIV: AC - Archeology, Anthropology, Ethnology

  10. Die verborgenen Mechanismen politischer Bildung: Zum Verhältnis von Struktur und Inhalt am Beispiel des Basiskonzepts Macht

    Directory of Open Access Journals (Sweden)

    Michael Brandmayr

    2015-09-01

    Full Text Available Dieser Beitrag möchte aus sozialisationstheoretischer Perspektive an die Diskussion um „kritische politische Bildung“ anknüpfen. Im Zentrum steht dabei der Begriff Hidden Curriculum, der auf latente Mechanismen im Prozess der schulischen Sozialisation hinweist, durch die in der Schule „auf der Hinterbühne“ (Zinnecker 1978 Normen, Werte und Einstellungen vermittelt werden. Im ersten Teil des Beitrags wird eine Fassung des Begriffs vorgeschlagen, die an historische Debatten anschließt, aber in diesem Zusammenhang geäußerte Einwände aufnimmt. Im zweiten Teil wird die Relevanz des Begriffes für die Frage der politischen Bildung gezeigt, wobei bemerkt wird, dass fachdidaktische politische Bildung diese Aspekte vernachlässigt, stattdessen an Vorerfahrungen im individualisierten Sinn anknüpft. Politische Bildung sollte auch besondere Bedingungen kollektiver Erfahrungen in der Institution Schule einbeziehen, denn einerseits strukturiert Schule Erfahrungsräume vor und lässt so bestimmte Erfahrungsmomente wahrscheinlicher werden; andererseits befördert Schule, dass Erfahrungen durch Prozesse sozialer Verstärkung (bedingt durch geringer werdende soziale Durchmischung eher im Sinne institutioneller Deutungsmuster interpretiert werden. Am Beispiel des Basiskonzepts Macht soll dargestellt werden, wie so der Anspruch der Ausgewogenheit der Inhalte nicht vollständig eingelöst werden kann. Die Möglichkeit eines emanzipativen Bildungs- und Reflexionsprozesses kann so infrage gestellt werden.

  11. Zum Anlaß des siebzigjährigen Bestehens der Geographieforschung und des Geographieunterrichts an der Universit von Ljubljana

    Directory of Open Access Journals (Sweden)

    Dušan Plut

    1989-12-01

    Full Text Available The Department of Geography is a part of the Universily of Ljubljana since established in 1919. The Department is the Siovenian main gcographical institulion educating students and working within different studies and researeh programmes. In thc futurc the synthesis of the geographical work done and outleveling of the special geography branehes might be main goals to reach.

  12. Vom öffentlich-rechtlichen Oligopol zum dualen Rundfunksystem: Die Einführung des Privatfernsehens aus akteurszentrierter Perspektive

    NARCIS (Netherlands)

    C. Herzog (Christian)

    2016-01-01

    textabstractThe introduction of private commercial television was a pivotal event in German media policy-making. The chapter investigates the process which led to the licensing of commercial broadcasters. It adopts an actor-centered perspective, linking macro (media system), meso (styles of

  13. Efficiency of the emission trading. A contribution to the climate protection law; Effizienz im Emissionshandel. Ein Beitrag zum Klimaschutzrecht

    Energy Technology Data Exchange (ETDEWEB)

    Frenz, Walter [RWTH Aachen Univ. (Germany). Lehr- und Forschungsgebiet Berg-, Umwelt- und Europarecht; Wimmers, Kristina [RWTH Aachen Univ. (Germany)

    2014-07-01

    The contribution discusses the following topics: Inclusion of additional sectors into the emission trading: road traffic and sea traffic, the stepwise realization and difficulties; the failed inclusion of air traffic, rigid penalties in case of violation of the fee delivery, thread for the complete mechanism, over-compliance in Germany and international perspectives.

  14. Facility management - from internal conditioner to successful business sector; Facility Management - vom internen Fitmacher zum erfolgreichen Geschaeftsfeld

    Energy Technology Data Exchange (ETDEWEB)

    Schoenberg, I. [Mannheimer Versorgungs- und Verkehrsgesellschaft mbH (MVV), Mannheim (Germany)

    1999-04-01

    The deregulation of the energy markets has given rise to sustained motion in the prevailing structures and market conditions of the supply industry. Dramatic declines in profits in the electricity sector have, in many companies, prompted reflex-like cost reduction programs which, however, frequently prejudice long-term growth prospects and viable future structures in favour of the results of the next fiscal year. The danger of sacrificing all flexibility and therefore market perspectives by corporate anorexia nervosa is immense. The MVV Energie AG, Mannheim, has reacted speedily to this situation and is pursuing a growth-oriented strategy which regards the challenges of competition as opportunity for on-going development. (orig.) [Deutsch] Kapitaldienst oder Miete, Energie, Wartung und Instandsetzung technischer Anlagen, Gebaeudeunterhalt-, -reinigung, Sicherheitsdienste, Versicherungen und vieles mehr uebersteigen ueber Jahre hinweg kumuliert die Baukosten um ein vielfaches und erhoehen bei Immobilieneigentuemern und -nutzern den Kostendruck. Beim Facility Management (FM) stehen nicht mehr nur die Investitionskosten fuer ein Gebaeude im Vordergrund, sondern sein gesamter Lebenszyklus, beginnend mit Idee, Konzeption und Investitionsentscheidung ueber Planung und Errichtung. Nutzung inklusive spaeterer Umbauten und Sanierungen bis hin zu Abriss und Neubau. Mit ihrer Dienstleistung FM bietet die MVV Energie AG ihren Kunden Gesamtkonzeption von der Beratung ueber die Planung und Umsetzung bis hin zur Uebernahme des FM an. (orig.)

  15. Technologische Alternativen zum herkömmlichen Einsatz von Pökelstoffen in Öko-Fleischwaren

    OpenAIRE

    Beck, A.; Marx, B.; Lücke, F.-K.

    2007-01-01

    On the basis of literature research and opinions of meat processors and other experts, this paper discusses alternatives to the currently permitted use of curing agents in the processing of organic meat. These alternatives include (i) the reduction of addition of nitrite to levels sufficient for the desired sensory properties, (ii) the in situ bacterial formation of nitrite from nitrate naturally present in added vegetable preparations, and (iii) not making use of the beneficial effects of ni...

  16. Physics for students of medicine and natural sciences. Physik fuer Mediziner und Naturwissenschaftler. Mit Schluessel zum Gegenstandskatalog

    Energy Technology Data Exchange (ETDEWEB)

    Breuer, H

    1978-01-01

    This textbook deals with the physics subjects of interest to students of medicine and biology. The author endeavoured to explain the physical and chemical fundamentals and their interrelationships as clearly as possible on the basis of didactically descriptive examples.

  17. On the use of hydrate inhibitors for operating natural gas caverns; Zum Einsatz von Hydratinhibitoren beim Betrieb von Erdgasspeichern

    Energy Technology Data Exchange (ETDEWEB)

    Kleinitz, W.; Lissanon, S.J.; Luehn, H.G. [Preussag Energie GmbH, Lingen/Ems (Germany)

    1997-12-31

    One way to prevent gas hydrates in natural gas caverns is to use thermodynamic or kinetic inhibitors in a defined temperature / pressure range. The present contribution describes the temperature conditions prevailing in the tubing string. It also discusses bacterial processes around wells arising in association with methanol digesting bacteria, diethylene glycol digesting bacteria, and kinetic inhibitors. Further topics include inhibitor dosage and absorption drying. (MSK) [Deutsch] Zur Vermeidung von Gashydraten im Erdgasspeicherbereich werden thermodynamische oder kinetische Inhibitoren in einem definierten Temperatur/Druckbereich eingesetzt. Im Folgenden werden die Temperaturbedingungen im Steigrohrsystem erlaeutert. Ebenso werden die bakteriellen Vorgaenge im Bohrlochsbereich in folgenden Einzelheiten: Methanol-verwertenden Bakterien, Diethylenglykol-verwertende Bakterien sowie kinetische Inhibitoren diskutiert. Weitere Themenpunkte sind die Inhibitordosierung und die Adsorptionstrocknung.

  18. Die Familie angesichts der Migration im Lichte der Botschaften von Johannes Paul II. zum Welttag der Migranten

    Directory of Open Access Journals (Sweden)

    Ireneusz Stolarczyk

    2011-09-01

    Full Text Available The author of this article presents migration as a social phenomenon, which constitutes a challenge for both the international community and particular countries. The involvement of the Holy Father John Paul II, as well as the variety of problems featuring in messages for the World Day of Migrants allow the reader to perceive the issues connected with migration as extremely urgent - both for individuals and for communities, among which the family is of greatest importance. The reason why the Holy Father committed himself to this fi eld was to uphold human dignity and a global social solidarity. The analysis of this phenomenon allows the Holy Father to address a call for responsibility to various groups whose integral activity can make the phenomenon of migration more digni fi ed. The messages of the Holy Father also offer a direct invitation to all people of goodwill to make their own contribution so that every person and family are respected and discriminations that undertime human dignity.

  19. Machine for casting and punching grids for lead batteries. Maschine zum Giessen und Stanzen von Gittern fuer Bleiakkumulatoren

    Energy Technology Data Exchange (ETDEWEB)

    Sperling, F; Hennecke, A

    1981-10-29

    The invention describes a machine, which places the cast parts from a two-part, vertical casting mould onto a transport unit using a lifting device, without any danger of deformation of the not yet hardened grid plates by mechanical loads. The lifting device and rider of the transport unit have guides, in which the plate rests with its grid wings. The transport unit consists of endless chains of variable distance and is also used for cooling, by taking air, for example, as cooling medium through a suitably shaped metal jacket. At the end of the cooling area, the castings are gripped at the bottom by axially controlled pegs pointing towards the inside, and are brought into the horizontal level by a movement of the chains. They are laid on a plate fitted between the chain wheels and are taken by side cams to the punch, from which they are discharged via a further pair of cams on to a belt.

  20. Die Position des Rätoromanischen und seine Beziehungen zum Deutschen, Französischen und Italienischen

    Directory of Open Access Journals (Sweden)

    Roland Bauer

    2010-12-01

    Full Text Available Die Dialektometrie (DM ist eine induktive Methode, die es erlaubt, in Massendaten versteckte Oberflächenmuster und Tiefenstrukturen zu entdecken und mittels multipler, computergestützter Visualisierungen sicht- und damit auch interpretierbar zu machen. So bietet die DM u.a. eine Reihe von Möglichkeiten, Relationen zwischen den untersuchten Objekten (das sind in der Regel alle in einem Sprachatlas datenseitig abgebildeten Dialekte aufzudeckenund kartographisch in verschiedenster Form zu modellieren, um solcherart u.a. die Position einzelner Dialekte bzw. Geotypen im gesamten Beobachtungsraum näher bestimmen zu können. In diesem Zusammenhang hat es sich als durchaus nützlich erwiesen, zusätzliche Vergleichspunkte mit akrolektalen, also auf Standard- bzw. Hochsprachen bezogene Datenserien einzubauen. Im vorliegenden Fall konnten solcherart wechselseitige, je nach innerlinguistischer Ausrichtung der gewählten Corpora unterschiedlich ausgerichtete Einflüsse der Großsprachen Französisch und Italienisch auf die oberitalienische Dialektlandschaft sowie auf die drei Mitglieder der Sprachfamilie Rätoromanisch (nach Gartner 1883 bzw. ladino (nach Ascoli 1873 aufgezeigt werden. Dem Sprachkontakt aller genannten Idiome mit dem Deutschen konnte hingegen sowohl über die Visualisierung der relativen Präsenz von Germanismen mittels einer Dichtekarte als auch über eine gesonderte dialektometrische Ähnlichkeitskartierung nachgegangen werden, wobei interessante Einblicke in die von verschiedenen Substrat- und Adstratwirkungen abhängige, z.T. deutlich divergente Bewirtschaftung der rätoromanischen Teilräume gewonnen werden konnten.

  1. From quantum physics to consciousness. Cosmos, spirit, and matter; Von der Quantenphysik zum Bewusstsein. Kosmos, Geist und Materie

    Energy Technology Data Exchange (ETDEWEB)

    Goernitz, Thomas [Frankfurt Univ., Frankfurt am Main (Germany). Fachbereich Physik; Goernitz, Brigitte

    2016-07-01

    The present book is a consequent continuation and deepening of a new concept layed down ba Thomas and Brigitte Goernitz in several writings. Starting from quantum theory they describe the evolution of the spirituality from the origin of the cosmos until the origin of the consciousness. Obtained was this knowledge by profund physical and mathematical research lasting for decades and in cooperation lasting for years with scientists and philosophers, especially with Carl Friedrich v. Weizsaecker.

  2. Chernobyl - a gross lie dressed up as information. Instructions for exciting public anger. Tschernobyl - die Informationsluege. Anleitung zum Volkszorn

    Energy Technology Data Exchange (ETDEWEB)

    Kafka, P; Koenig, J; Limmer, W

    1986-01-01

    This book is a 'chronicle of lies', intended to put on record what might sink into obscurity in the daily flood of information: All the contradictory, false, purposefully manipulated bits of information that are summing up to what the authors call 'the gross lie dressed up as information'. The book presents documents, statements and personal opinions concerning the policy of disseminating disorienting information, discusses the role played by the radiation protection experts, and summarizes the political effects so far of the Chernobyl disaster. Readers will also find information on institutions and organisations of significance in this context (as, e.g., the Strahlenschutzkommission), and on methods of radiation measurement, and a list of terms in radiology.

  3. An ecologic accompanying research on the fleet test electromobility. Final report; Oekologische Begleitforschung zum Flottenversuch Elektromobilitaet. Endbericht

    Energy Technology Data Exchange (ETDEWEB)

    Helms, Heinrich; Lambrecht, Udo; Joehrens, Julius; Pehnt, Martin; Liebich, Axel; Weiss, Uta; Kaemper, Claudia

    2013-06-15

    Mobility is a prerequisite for numerous economic and private activities and thus a central component of our life. The demand for mobility in Germany is predominantly covered by the road traffic. The Institute for Energy and Environmental Research (Heidelberg, Federal Republic of Germany) carried out an ecologic accompanying research in the course of a fleet test in order to determine the potentials of environmental improvement of the vehicles tested in a field test. These potentials were perpetuated for future serial vehicles and projected to Germany. The main themes of this contribution are: (a) Production and disposal of plug-in-hybrids; (b) The TwinDrive in the fleet test; (c) Plug-in-hybrid serial vehicles 2020; (d) Perspective of electromobility in Germany 2030; (e) Strategic evaluation of the electomobility.

  4. Heating with wood. A guide to clean and proper heating; Heizen mit Holz. Ein Ratgeber zum richtigen und sauberen Heizen

    Energy Technology Data Exchange (ETDEWEB)

    Behnke, Anja [Umweltbundesamt, Dessau (Germany); Kemper, Bernd-Michael [Landesanstalt fuer Umwelt, Messungen und Naturschutz Baden-Wuerttemberg (LUBW), Karlsruhe (Germany)

    2013-01-15

    When correctly used, wood is an eco-friendly fuel. By using well-processed wood from local sources in a properly handled modern fireplace, you can enjoy the cosy warmth from your wood-burning stove or boiler without causing significant environmental damage. The environment and your neighbours will be grateful for this. This brochure is intended to give you tips on how to properly operate a wood-based heating system - in technical terms referred to as a small combustion installation. Especially the burning of poor quality wood in old and insufficiently maintained stoves and unfavourable combustion conditions will result in the emission of unnecessarily high levels of greenhouse gases having adverse effects on the climate, and pollutants detrimental to your health. Particularly in urban agglomerations and valleys, the air quality is affected by wood heating systems due to low chimneys. Often, neighbours will feel annoyed.

  5. Nuclear exports. Parliamentary control and confidentiality; Parlamentarische Kontrolle und Geheimhaltungsbeduerftigkeit bei Nuklearexporten. Zum Urteil des Bundesverfassungsgerichts vom 21. Oktober 2014

    Energy Technology Data Exchange (ETDEWEB)

    Feldmann, Ulrike

    2015-03-15

    With its decision taken on 21. October 2014 (Az.: 2 BvE 5/11) the Federal Constitutional Court (BVerfG) decided during court proceedings between administrative bodies on the scope and limits of the parliamentary right of information. Even though the proceeding did not deal with nuclear exports but arm exports, foreign trade law, however, does not only designate an export licence obligation for military weapons but also for so called dual-use goods meaning goods, which can be used both for friendly as well as for military purposes. The export of these goods requires according to the so-called Dual-Use Regulation (EG) 428/2009 a licence. Annex I category 0 of the regulation (EG) 428/2009 lists a variety of nuclear materials, plants and equipment items for which this licence applies. In the same manner as arm exports, also exports of nuclear dual-use goods are being discussed in a special cabinet committee, the Federal Security Council (BSR), which shall coordinate cross-departmentally the German security and defence policy under consideration of economic interests and which categorises its results, according to the rules of procedure, as confidential. Also legally not regulated but common ''preliminary enquiries'' at the responsible Federal Ministry or rather Federal Office of Economics and Export Control by companies which plan an export and want to affirm the general approval for their export business prior to conclusion of contract take not only place for arm exports but also for nuclear dual-use goods. The decision by the Federal Constitutional Court can be applied to consultations about the authorisation of nuclear dual-use goods.

  6. Studien zum "Horrendum Bellum Grammaticale" des Justus Georg Schottelius (1673): Vorstellung des Dissertationsvorhabens / Tuomo Fonsén

    Index Scriptorium Estoniae

    Fonsén, Tuomo, 1976-

    2006-01-01

    Autori dissertatsioonist, mis tutvustab Justus Georg Schotteliuse ladinakeelset allegoorilist saksa keele grammatikat ja keeleajalugu käsitlevat tööd 17. sajandist. Schottelius, Justus Georg. Horrendum Bellum Grammaticale Teutonum antiquissimorum [...]. Braunschweig : [s.n.], 1673

  7. Value of digital radiography in expiration in detection of pneumothorax; Wertigkeit der digitalen Roentgenaufnahme in Exspiration zum Nachweis eines Pneumothorax

    Energy Technology Data Exchange (ETDEWEB)

    Thomsen, L.; Natho, O.; Feigen, U.; Kivelitz, D. [Asklepios Klinik St. Georg, Hamburg (Germany). Dept. of Radiology; Schulz, U. [medistat GmbH, Kiel (Germany). Medical Statistics

    2014-03-15

    Purpose: The purpose of this study was to find out whether pneumothorax detection and exclusion is superior in expiratory digital chest radiography. Materials and Methods: 131 patients with pneumothorax with paired inspiratory and expiratory chest radiographs were analyzed regarding localization and size of pneumothorax. Sensitivity, specificity, negative (npv) and positive predictive value (ppv) as well as the positive (LR+) and negative likelihood ratio (LR-) were determined in a blinded randomized interobserver study with 116 patients. The evaluation was performed by three board-certified radiologists. Results: In 131 patients, there were 139 pneumothoraces, 135 (97.1 %) were located apical, 88 (63.3 %) lateral and 33 (23.7 %) basal. Sensitivity was 99 % for inspiratory and 97 % for expiratory radiographs. The interobserver study yielded a mean sensitivity of 86.1 %/86.1 %, specificity of 97.3 %/93.4 %, npv of 88.7 %/88.5 % and ppv of 96.7 %/92.1 % for inspiration/expiration. For inspiratory radiographs the LR+/LR- were 40.2/0.14 and for expiration 13.9 and 0.15. McNemar-Test showed no significant difference for the detection of pneumothoraces in in-/exspiration. Conclusion: Inspiratory and expiratory digital radiographs are equally suitable for pneumothorax detection. Inspiratory radiographs are recommended as the initial examination of choice for pneumothorax detection, an additional expiratory radiograph is only recommended in doubtful cases. (orig.)

  8. Strategic environmental audit for the national waste disposal program; Strategische Umweltpruefung zum Nationalen Entsorgungsprogramm. Umweltbericht fuer die Oeffentlichkeitsbeteiligung

    Energy Technology Data Exchange (ETDEWEB)

    Steinhoff, Mathias; Kallenbach-Herbert, Beate; Claus, Manuel [Oeko-Institut e.V., Darmstadt (Germany); and others

    2015-03-27

    The report on the strategic environmental audit for the national waste disposal program covers the following issues: aim of the study, active factors, environmental objectives; description and evaluation of environmental impact including site selection criteria for final repositories of heat generating radioactive waste, intermediate storage of spent fuel elements and waste from reprocessing plants, disposal of wastes retrieved from Asse II; hypothetical zero variants.

  9. great ideas. Renewable raw materials on the road to the market; tolle ideen. Nachwachsende Rohstoffe auf dem Weg zum Markt

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2011-07-01

    The comprehensive change from the carbon sources petroleum, natural gas and coal to renewable resources is not possible without research and development. Suitable methods and applications must be developed and continued. Questions of efficiency, environmental friendliness, sustainability, supply of nutrition, public accessibility and use of competition are becoming increasingly important. The brochure under consideration presents promising research findings on plant-based replacement of these carbon sources. It describes ideas of how biomass can be used particularly clean, efficient, and with participation of citizens. Possibilities for the extension of the range of plants, for the mobilization of the waste, for recycling of nutrients, and for the sustainability are described. Only the sustainable use of biomass is future-oriented.

  10. Zum Ausgleich von generativer und energetischer Sprachbetrachtung (A Comparison of the "Generative" and "Energetic" Views of Language)

    Science.gov (United States)

    Weisgerber, Leo

    1972-01-01

    Discussion of two basic conceptions: Wilhelm von Humboldt's idea of language as energeia'' existing within and without man, and Noam Chomsky's idea of language generated by the speaker according to an innate apparatus. Revised version of lectures presented at the University of Bonn, West Germany in August 1971. (RS)

  11. Aspects of knowledge management: knowledge sharing as a social dilemma; Aspekte zum Wissensmanagement: Wissen-teilen als soziales Dilemma

    Energy Technology Data Exchange (ETDEWEB)

    Oldigs-Kerber, J. [Sanofi-Aventis Deutschland GmbH, Frankfurt am Main (Germany). Information Management

    2007-07-01

    Starting from the assumption that knowledge is closely linked with people and that it continues to develop among these people, three major areas can be identified as ''sources of knowledge'' on which approaches to knowledge management can be based. 1. If people make their knowledge available in the form of information in documents, then the need arises for information from this source of ''knowledge'' to be retrievable and extractable easily and systematically once a certain magnitude has been reached (document orientation). Typical approaches to this are e.g. literature databases and search tools including conclusive searches across documents. 2. Since the documents were written by people, it might be thought that people themselves can be regarded as a source of ''knowledge'', coupled with the wish to be able to find and contact these people easily and systematically. Although such a search would not yield any content like documents do, it would reveal people who could disclose such content and probably even more comprehensively than documents. Approaches to this are oriented towards people or the individual knowledge carriers. Typical approaches are Yellow Pages and expert-finding systems. 3.As an alternative to the many one-to-one links of the above approach it is possible to encourage a topic-centered organizational structure within which information is obtained and passed on. The source of ''knowledge'' is the social interaction in organizational structures / the networks, coupled with the wish to promote knowledge sharing across departmental boundaries and to keep knowledge that has been gained alive in the company. Typical approaches are e.g. communities of practice or promotion of learning processes (e.g. lessons learned, best practices, interrupted case study) Knowledge sharing plays an important part in the two last-mentioned points and will therefore considered in greater depth. Is knowledge sharing a natural behavior or rather a social dilemma? What do the behavioral sciences say about knowledge sharing on the web, which could substantially benefit companies, following the principle: It is not necessary for everybody to know everything, but all knowledge is immediately available wherever it may be needed. (orig.)

  12. "Polnische Patrioten?" Einige Anmerkungen zum frühen Polenbild in Westpreußen um 1700

    OpenAIRE

    Steffen, Frank

    2002-01-01

    Poniższa praca odnosi się głównie do tezy Huberta Orłowskiego, według której „niemiecka dyskusja o Polsce miała legitymujące, nic do pominięcia znaczenie dla wynalezienia niemieckiego narodu”. Wobec rozmiarów i rozdrobnienia społeczno-wyznaniowego Rzeszy Niemieckiej ok. 1700 r. temat ten ograniczony jest do Prus Zachodnich i głównego problemu (teoria państwowości, religia, historia) debaty o przyczynach funkcjonowania powstałego obrazu Polski. Koncentracja na Prusach Zachodnich wy...

  13. Medien und Berufsvorstellungen von Kindern: eine experimentelle Studie zum Einfluss von Kinderbüchern auf das Berufsspektrum von Kindergartenkindern

    OpenAIRE

    Brüggemann, Tim; Gehrau, Volker; Handrup, Jutta

    2015-01-01

    "Der Beitrag thematisiert zunächst den Stand der beruflichen Orientierung von Jugendlichen sowie die pädagogischen Bemühungen beim Übergang Schule-Beruf, insbesondere im Hinblick auf eine Erweiterung des häufig engen Spektrums von Berufen, die bei der Berufswahl berücksichtig werden. Dabei richten sich die Bestrebungen, diesem Problem entgegenzuwirken, bislang vor allem auf Jugendliche. Anschließend wird anhand vorliegender Ergebnisse aus der Medienforschung diskutiert, in welcher Weise Masse...

  14. Internet as an interface to the customer. Distribution- and sevice portals; Internet als Schnittstelle zum Kunden. Vertriebs- und Serviceportale

    Energy Technology Data Exchange (ETDEWEB)

    Hagen, Henning von der [Stadtwerke Luebeck GmbH, Luebeck (Germany). Vertriebsentwicklung; Brahm, Markus [Items GmbH, Muenster (Germany). Bereich Anwendungen

    2009-05-18

    The task is'nt still new for energy suppliers: customer loss in the existing supply sector should be avoided by different measures. This can be achieved by distribution activities and a good hold to customers. An essential part during realization of this strategies is the utilization - in special in a mass customer market - of an internet supported distribution and service portal. (orig./GL)

  15. Sustainability projects in Gundeldingen, Basel; Nachhaltigkeitsprojekte auf dem Gundeldingerfeld in Basel - Schlussbericht zum NaQu-Projekt

    Energy Technology Data Exchange (ETDEWEB)

    Binz, A.; Voyame, J.-P.; Mueller, W.

    2008-10-15

    This final report for the Swiss Federal Office of Energy (SFOE) takes a look at the results obtained from the 'sustainable quarter' project in Basel, Switzerland. Along with other sustainability projects in Lausanne, Lucerne and Zurich, this project was part of a research project on sustainable city district development. The projects realised in the Gundeldingen quarter in Basel are discussed, such as the gradual conversion of an industrial site into a public meeting place, information offers on sustainability, mobility projects, new green spaces, solar energy, recycling, energy management and future sustainable development in this city district.

  16. Furfural and other furane-derivates as diesel fuel additives. Furfural und andere Furanderivate als Zusatz zum Dieselkraftstoff

    Energy Technology Data Exchange (ETDEWEB)

    Nemling, O.

    1982-01-01

    Alternative energies such as fuel additives or fuel-substitutes are on their way upwards as they may help to reduce the dependency on crude and crude-based fuels. A number of solutions has already been indicated for carburettor engines whereas a lot more of research and development is needed to find a safe alternative to diesel fuels. Possibilities of using furfural, furfuralcohol and furan-2-carbonic acid-methylester as additives to diesel or as a substitute were investigated. A survey on the characteristic properties of these substances is given, then several tests are set up in order to describe the properties of diesel additive mixtures at low temperatures. Based on these tests two mixtures are proposed both with a furfural/butanole mixture. Furfural is suitable as diesel additive, a solubilizer is needed though.

  17. Energy - economy - policy: considerations on the world energy market. Energie - Oekonomie - Politik: wirtschaftstheoretische und wirtschaftspolitische Betrachtungen zum Weltenergiemarkt

    Energy Technology Data Exchange (ETDEWEB)

    Giesel, H B

    1991-07-11

    Worldwide, there is no technical scarcity of energy resources, there is a scarcity of those which might be recovered cost-effectively. The approach of the traditional resource theory is orientated to the optimum distribution of the finite energy resources between the generations. The present distribution problem is, however, the excessive demand for cost-advantageous energy resources of the Third World by the industrialized countries. The industrialized countries themselves own abundant energy resources (e.g. 'non-conventional' oils) which, however, cannot be cost-effectively recovered unless a substantially higher energy price level assures economic viability. This analysis raises fundamental questions concerning an optimized balance of interests in the field of utilization of resources between the North (rich countries) and the South (poor countries, need for energy; increasing overpopulation). Alternative solutions aiming at better conservation of cost-effectively recoverable resources to the advantage of the Third World countries are discussed as well as viable instruments to be used within the framework of an international energy policy. 21 refs., 5 figs.

  18. Freud kon ook geestig zijn [Boekbespreking van: Lütkehaus, L. (Hrsg.), Freud zum Vergnügen

    NARCIS (Netherlands)

    Thoomes, D.T.

    2006-01-01

    Humor is niet het eerste waar men aan denkt bij de psychoanalyse. Een serieuze wetenschappeljke benadering van psychische aandoeningen en patiënten met vaak zware klachten. Toch stelde Freud zich aan het begin van zijn loopbaan als therapeut ten doel om hysterische mensen te veranderen in 'gewone

  19. Critical annotations to the Lower Saxony Government's concept for abandoning nuclear energy. Kritische Anmerkungen zum niedersaechsischen Ausstiegskonzept

    Energy Technology Data Exchange (ETDEWEB)

    Michaelis, H. (Koeln Univ. (Germany) Enquete-Kommission des Deutschen Bundestages ' Schutz derErdatmosphaere' , Bonn (Germany))

    1993-06-01

    On 9th February 1993, the Lower Saxony Government declared that the four nuclear power stations operated in Lower Saxony and currently contirbuting to power supply in Lower Saxony at a rate of 60%, can be dispensed with by the year 2005 without causing reductions in supply safety or standard of living. This statement is based on the finale report of the expert's opinion (12th November 1992) which was produced jointly by Prognos AG, Basle, Pestel Institut, Hannover, and the Oeko- Institut, Freiburg. This experts'opinion has been worked out soundly and correctly, material statements do largely apply but need to be corrected relative to some issues. Hence, the bone of contention is not the experts' opinion proper, but the results and consequences derived there from. The author addresses these in his critical analysis. (orig./UA)

  20. Lubricant for corrosion protection of the inner chambers of internal combustion engines. Schutzschmiermittel zum Korrosionsschutz der Innenraeume von Verbrennungsmotoren

    Energy Technology Data Exchange (ETDEWEB)

    Ettig, A.; Ferke, M.; Fueloep, J.; Gal, L.; Gyoengyoessy, L.; Horvath, R.; Keresztessy, Z.; Keresztessy, M.; Papp, I.

    1987-09-17

    The invention is concerned with lubricants for corrosion protecion in internal combustion engines which contain (a) 85 to 99 weight-% of a base oil and/or engine oil, (b) 0.1 to 1.0 weight-% of a corrosion and simultaneously emulsification inhibitor from a monoester, diester or triester of fatty acids with a double bond, (c) 0.1 to 6.0 weight-% of an additive improving the viscosity index and adhesiveness, from a polyolefin or olefin copolymer or a polyacrylic or polymethacrylic acid ester and also, if necessary (d) 0.1 to 8.0 weight-% of a detergent additive with neutralizing effect. The effect of these protective lubricants is by far better as of those known up to now.