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1

Particulate matter analysis in the area of Berlin and modelled assessment of pollution abatement measures; Feinstaubanalyse im Berliner Raum und Modellanwendungen zur Beurteilung von Emissionsminderungsmassnahmen  

Energy Technology Data Exchange (ETDEWEB)

No abstract prepared.

2005-07-01

2

International symposium: concepts for the treatment of wastewater in the rural areas of Europe. Proceedings; Internationales Symposium: Konzepte zur Abwasserbehandlung im laendlichen Raum Europas. Tagungsband  

Energy Technology Data Exchange (ETDEWEB)

In the first part of the symposium, experts reviewed the state of the art of decentralized waste water treatment in Europe. In the second part, exemplary solutions in Poland and the Czech Republic were presented. The final part was dedicated to future concepts and strategies. [German] Im Herbst letzten Jahres hat die Kommunale Umwelt-AktioN U.A.N. in einer Abfolge von drei Abwasserfachsymposien Expertenrunden zum Austausch ueber den aktuellen Stand des Wissens zum Thema dezentrale Abwasserbehandlung veranstaltet. Mit dem Internationalen Symposium 'Konzepte zur Abwasserbehandlung im laendlichen Raum Europas' in Celle hat das Projekt der U.A.N. seinen Abschluss gefunden. Der Konzeption des Projektes entsprechend haben im 1. Teil des Symposiums Experten ueber den Stand der Entwicklung auf dem Sektor der dezentralen Abwasserbehandlung in Deutschland berichtet. Im 2. Teil unserer Fachtagung wurden europaeische Beispiele fuer dezentrale Loesungen aus ...

2000-07-01

3

Correct monitoring of stationary battery systems; Stationaere Batteriesysteme richtig ueberwacht  

Energy Technology Data Exchange (ETDEWEB)

There are many applications that necessitate reliable and permanent power supply, e.g. power stations, airports, computer centers or hospitals. The stationary battery systems must be monitored by efficient systems, e.g. Batlog. (orig.) [Deutsch] Viele Anwendungen verlangen eine permanent verfuegbare und zuverlaessige Stromversorgung. Kraftwerke, Flughaefen, Rechenzentren oder Krankenhaeuser muessen ihre Prozesse auch bei einem Netzausfall oder einer Versorgungsunterbrechung weiterbetreiben. Dies gelingt nur, wenn sich der entsprechende Energiespeicher in einsatzbereitem Zustand befindet. Die Ueberwachung der stationaeren Batterieanlagen erfordert leistungsfaehige Systeme wie Batlog. (orig.)

1998-10-01

4

High efficiency by advanced power plant engineering. Siemens PG: Best solutions for high-tech steam turbines; Hoehere Wirkungsgrade durch moderne Kraftwerkstechnik. Siemens PG: Best solutions fuer High-tech-Dampfturbinen  

Energy Technology Data Exchange (ETDEWEB)

A consequent use of computers and standardized components enables high efficiency for steam turbines while produced at lower manufacturing cost as shown here in the Muehlheim company of Siemens Power Generation, where steam turbines are produced for new stations and retrofitted elder power plants. [German] Auch eine ueber hundert Jahre alte Technik bietet Raum fuer Innovationen: Konsequenter Computereinsatz und standardisierte Baureihen ermoeglichen bei Dampfturbinen hohe Wirkungsgrade bei relativ niedrigen Fertigungskosten - umgesetzt im Werk Muelheim der Siemens Power Generation, wo Dampfturbinen fuer Neuanlagen und zum Modernisieren bestehender Kraftwerke entstehen. (orig.)

2002-07-01

5

First experiences with the three guidelines for incorporation monitoring; Erste Erfahrungen mit den drei Richtlinien zur Inkorporationsueberwachung  

Energy Technology Data Exchange (ETDEWEB)

Three different guidelines define the methods to be used for the quantification of exposures due to the incorporation of radionuclides. The adoption of the Euratom-directive into German law requires the adaptation of these guidelines. With this process, the experiences with the practical application of these regulations must be taken into account. (orig.) [Deutsch] Die Ermittlung der Koerperdosis durch inkorporierte Radionuklide ist in drei Richtlinien des Bundesministeriums fuer Umwelt, Naturschutz und Reaktorsicherheit (BMU) geregelt. Die Umsetzung der Euratom-Direktive in deutsches Recht erfordert die Anpassung dieser Richtlinien. Dabei muessen die bisherigen Erfahrungen mit diesen Richtlinien beruecksichtigt werden. (orig.)

1998-12-31

6

Climate analysis of the Dresden Frauenkirche; Bauklimatische Analyse der Frauenkirche in Dresden  

Energy Technology Data Exchange (ETDEWEB)

The analyses were carried out using real climate data for the years 1987 and 1989. The course of the indoor climate for year-round free ventilation with a constant flow volume is discussed. Numerous diagrams inform on ambient temperature, water vapour content, the condition of space air, and temperature drops below dew point. For the event of heating of the central part of the church, space air condition, the annual air humidification requirement, and the temperature field in this part of the building are described. (MSK) [Deutsch] Die Untersuchungen wurden mit aktuellen Klimadaten fuer die Jahre 1987 und 1989 durchgefuehrt. Der Verlauf des Raumklimas bei ganzjaehrig freier Klimatisierung mit konstantem Foerderstrom wird erlaeutert. Dabei wird die Raumlufttemperatur, der Wasserdampfgehalt, der Raumluftzustand sowie die Taupunktunterschreitung in zahlreichen Diagrammen aufgezeigt. Weiter werden fuer den Fall der Beheizung des Hauptraums der Kirche der Raumluftzustand, der jaehrliche ...

1997-12-01

7

Calculation of ventilation efficiency and of load situations for load-relieving air conduction systems; Berechnung der Lueftungseffektivitaet und der Belastungssituation fuer lastmindernde Luftfuehrungen  

Energy Technology Data Exchange (ETDEWEB)

Zone modeling permits taking account of the effect of load-relieving air conduction systems in the planning of HVAC plants. Although this only supplies average values for the degree of load and height of the fresh air layer rather than a detailed description of concentration and temperature distributions in the room, it is quite sufficient for the planning of load-relieving air conduction systems. Moreover, the cost of zone modeling in the planning of HVAC plants remains within reasonable limits. Upscale planning, instruments can thus be reserved for more exacting problems. (orig.) [Deutsch] Zonenmodelle erlauben die Wirkung lastmindernder Luftfuehrungen bei der Planung von RLT-Anlagen zu beruecksichtigen. Sie liefern zwar nur Mittelwerte fuer den Belastungsgrad und die Hoehe der Zuluftschicht und keine detaillierte Konzentrations- und Temperaturverteilungen im Raum. Diese Werte reichen jedoch fuer die Planung lastmindernder Luftfuehrungskonzepte aus. Zudem ist der ...

1994-12-31

8

Atlas and toolbook of MR mammography; Lehratlas der MR-Mammographie  

Energy Technology Data Exchange (ETDEWEB)

This richly illustrated toolbook and atlas contains information on all aspects of nmr diagnostic imaging of benign or malignant neoplasms of female and male mammary glands. It offers pinpointed guidance and insight for vocational training and continuing training of radiology assistants, students and medical radiologists. (orig./AJ) [German] Die MRT als hochaufloesendes und schaedigungsfreies Diagnostikum gewinnt gerade in der emotional stark besetzten Mammadiagnostik zunehmend an Bedeutung. Dennoch beherrschen nur wenige Zentren im deutschsprachigen Raum diese Technik, die - eine hohe Reproduzierbarkeit bei fehlender Belastung fuer die Patientin bietet, - invasive Karzinome bereits ab einer Groesse von 5 mm mit hoher Zuverlaessigkeit ausschliessen kann und - gerade bei widerspruechlichen Befunden zwischen klinischer Untersuchung, Roentgenmammographie und perkutaner Biopsie eine wesentliche Entscheidungshilfe bieten kann. Aus einem der fuehrenden Zentren in der ...

2000-07-01

9

Action and locality principle for noncommutative scalar field theories; Wirkungs- und Lokalitaetsprinzip fuer nichtkommutative skalare Feldtheorien  

Energy Technology Data Exchange (ETDEWEB)

We develop a general framework for the formulation of the action principle and the noether theorem for classical noncommutative field theories. We give a concrete example of an algebra that fits into this framework. It describes a scalar field theory on noncommutative minkowski space. We develop a notion of locality for this algebra and investigate the locality properties of localised interaction terms. This leads us to the definition of local functionals on the field algebra. We propose a scheme for the quantisation of these functionals. (orig.) [German] Wir entwickeln eine allgemeinen rahmen, der es erlaubt, das wirkungsprinzip und das noether-theorem fuer klassische nichtkommutative feldtheorien zu formulieren. Als ein konkretes beispiel betrachten wir eine algebra, die sich in diesem rahmen einfuegt, und die eine skalare feldtheorie auf dem nichtkommutativen minkowski-raum beschreibt. Fuer diese algebra wird ein lokalitaetsbegriff entwickelt und untersucht, ...

2003-12-01

10

The steam generation yearbook. 7th edition; Jahrbuch der Dampferzeugungstechnik. 7. Ausgabe  

Energy Technology Data Exchange (ETDEWEB)

This 7th edition reveals the progress in steam engineering and the great future potential of steam engineering applications. Pollution abatement and design experiences gained during the operation of existing plants, and experiences gained in waste incineration are of environmental relevance. Recent materials developments and knowledge, e.g. as regards pipes and fittings, have been making significant contributions to supercritical-steam efficiency improvements. Emphasis is also placed on automation, control engineering, water chemistry etc., and on regulations, licensing procedures, and the training of the staff of plants. (orig./KOW) [Deutsch] Die nunmehr vorliegende 7. Ausgabe zeigt den Fortschritt und das zukuenftig noch erhebliche Potential dieser Technik auf. Erfahrungen mit den nun schon seit Jahren laufenden Anlagen zur Schadstoffminderung, Konstruktion und Auslegung sowie Betriebserfahrungen zur thermischen Abfallverwertung sind Schwerpunkte im Umweltbereich. Neue Erkenntnisse ...

1992-12-31

11

Multi-rotor-stations, a new concept for large-scale wind power stations; Multi-Rotor-Konstruktionen. Ein neues Konzept fuer grosse Windkraftanlagen  

Energy Technology Data Exchange (ETDEWEB)

As an alternative to the usual way of installing wind machines in extended windfarms new concepts are being developed. Several wind turbines are affixed to one support structure and can be aligned together. Drafts of steel constructions developed by students in three diploma theses are presented. The attempt to transform existing design standards requires extensive discussion of possible influence scenarios. Several concepts regarding structure and safety elements are described and evaluated. The design of the support structure is to be seen as a first step to the practicability of the whole concept. A preliminary mass calculation and a specification of further cost factors facilitates the comparison to conventional wind power stations. (orig.) [Deutsch] Als Alternative zur ueblichen Praxis, Windenergieanlagen in Form grossflaechiger Windparks zu bauen, werden Konzepte entwickelt, bei denen mehrere Konverter an einem Tragwerk angeordnet und gemeinsam in den Wind ausgerichtet werden. ...

1996-06-01

12

Integrative facility management via the intranet requires reliable communication. Network and security solutions for multi-site facility management; Integratives Gebaeudemanagement ueber Intranet erfordert gesicherte Kommunikation. Network und Security Konzept fuer das technische Multi-Site-Facility-Management  

Energy Technology Data Exchange (ETDEWEB)

Since enterprises operating offices and facilities at geographically distributed sites have been establishing an intranet for inter-office communication at the management level, the idea of integrating another intranet for multi-site technological facility management comes naturally. The Aachen-based technology enterprise Eurem for this purpose developed a Network and Security concept with solutions that can be customized for linking a variety of computerized control and monitoring systems. The package includes a modular substation named modUS, which is open to the field side as well as to the management side, is capable of efficiently and reliably performing the facility management functions by way of remote controlling via intranets. (orig./CB) [Deutsch] Nachdem in den Unternehmen mit verteilten Liegenschaften die unterschiedlichsten Buerokommunikationssysteme ueber eigene Netzwerke verbunden werden, liegt es nahe, auch verteilte Gebaeudeautomationssysteme in diese Vernetzung ...

1999-02-08

13

Benign diseases of the mandible in MRI; Benigne Erkrankungen des Unterkiefers im MRT  

Energy Technology Data Exchange (ETDEWEB)

Diseases of the mandible affect the soft tissues aside from the osseous manifestation. This can be shown clearly and in great detail by magnetic resonance imaging (MRI). MRI is the gold standard in the diagnostic evaluation of any internal derangement of the temporomandibular joint. Dental MRI requires high resolution techniques and in some cases also intravenous administration of contrast material. These techniques allow delineation of the neurovascular bundle. In the past few years new indications were formulated, for example, the evaluation of the integrity of the inferior alveolar nerve in trauma and in radicular cysts. New quantitative methods now enable insights into the pathophysiology. The objective of this review is to communicate accepted indications for MRI of the mandible and to present innovative applications. (orig.) [German] Mandibulaere Erkrankungen beteiligen neben dem Knochen Weichteilstrukturen, die sich mit der MRT klar und detailreich darstellen lassen. In der ...

2004-04-01

14

Sprayforming of unalloyed and low alloy steel preforms; Spruehkompaktieren von Halbzeugen unterschiedlicher Geometrie aus unlegierten und niedriglegierten Staehlen  

Energy Technology Data Exchange (ETDEWEB)

Sprayforming offers the possibility to produce a variety of preforms in a single step directly from the melt. Numerous processing parameters ensure high flexibility but require detailed knowledge concerning the microstructure of sprayformed material depending on chemical composition and processing parameters. Within the current study fundamental investigations using unalloyed and low alloy steel grades (C15, C105, 100Cr6) for sprayforming of plates and billets have been performed concerning the influence of chromium and carbon content and selected processing parameters. Sprayformed preforms revealed austenite grain sizes up to 500 {mu}m depending on the development of porosity. Different types of porosity have been detected which can be associated with incomplete densification due to high cooling rates, solidification shrinkage and entrapped nitrogen. Atomisation gas pressure and carbon content are parameters of primary importance. (Abstract Copyright [2003], Wiley Periodicals, Inc.) ...

2003-01-01

15

Staging of multiple myeloma with MRI: comparison to MSCT and conventional radiography; Staging des multiplen Myeloms mit der MRT: Vergleich zur MSCT und zur konventionellen Roentgendiagnostik  

Energy Technology Data Exchange (ETDEWEB)

The staging of patients with multiple myeloma demands sensitive imaging methods for the assessment of the skeletal system. MRI allows for direct visualization of the bone marrow which exhibits five different infiltration patterns in multiple myeloma: 1. normal appearance of the bone marrow, 2. focal involvement, 3. homogeneous diffuse infiltration, 4. combined diffuse and focal infiltration, 5. ''salt and pepper'' pattern with inhomogeneous bone marrow signals due to multiple fat islands. The combination of T1w-SE and STIR sequences is best suited for detecting all infiltration patterns and for the differential diagnoses e. g. hemangiomas. With parallel imaging in MRI, acquisition times can be markedly reduced and whole-body screening of the bone marrow can be achieved within 30 min. MRI is superior to radiography for the detection of focal as well as diffuse infiltration. Multidetector computed tomography and especially 16- and 64-detector row ...

2004-09-01

16

Modernizing steam turbines for nuclear power plants; Modernisierung von Dampfturbinen fuer Kernkraftwerke  

Energy Technology Data Exchange (ETDEWEB)

Economic and safe operation of nuclear power plants requires reliable steam turbines with high efficiencies. The progress in flow mechanics achieved over the past few years has allowed the use of powerful methods of flow calculation in developments of new blading with greatly enhanced efficiencies. Thanks to the latest manufacturing techniques, the newly developed blading systems can be produced at low cost. Next to progress in flow mechanics, also the broadbased use of advanced finite-element calculations resulted in a more thorough grasp of the many problems associated with structural mechanics assessment of steam turbine components. The theoretical methods have been supplemented by comprehensive efforts in fracture mechanics and experimental materials studies, thus helping to create a reliable knowledge base which will help to avoid the dreaded stress corrosion cracking phenomenon, in components of steam turbines. The measures introduced to improve operational reliability already in ...

1996-01-01

17

Funding programme ``30 low energy buildings in Hesse`` - experience and conclusion; Foerderprogramm `30 Niedrigenergiehaeuser in Hessen` - Erfahrungen und Schlussfolgerungen  

Energy Technology Data Exchange (ETDEWEB)

Low energy buildings promise significant energy savings and help climate preservation by cutting down on annual heating requirements to values below 70 kWh per m{sup 2} dwelling space. It is expected that low energy constructions will become the common standard by the year 2000 as a result of the forthcoming energy saving ordinance. For making the introduction and implementation of this standard successful, practical experience will be essential. For this reason, the state government of Hesse has supported respective pilot projects 1987. In 1989 the funding programme `30 low energy buildings in Hesse` has been established. Consecutively - between 1989 and 1993 - 29 buildings were erected. At first, the thermal quality of the crafted building construction including the ventilation systems was checked. Consecutively, energy consumption, indoor and outdoor temperatures were measured over a time span of several years. The experience of the inhabitants was surveyed. The `Institut Wohnen und ...

1998-10-01