Vorbereitung, Durchfuehrung und Auswertung des EMEP-Workshops ueber Photooxidantien-Modellierung Materialienband

The following main work packages have been carried out: Giving organizational and technical/scientific support to Umweltbundesamt in preparing and running the workshop; Evaluation of workshopresults; Reporting. The workshop revealed board agreement about the necessity to simulate the atmospheric NO_x/VOC/O_3-System by means of complex, up-to-date, atmospheric models. (orig.)Das Vorhaben umfasst folgende Leistungen: Fachliche und organisatorischen Unterstuetzung bei der Vorbereitung des Workshops. Fachliche Unterstuetzung bei der Durchfuehrung des Workshops. Aufbereitung der Ergebnisse und Berichterstattung. Der Workshop brachte weitestgehende Uebereinstimmung darin, dass die Simulation des NO_x/VOC/O_3-Systems nur mit komplexen, den neuesten Kenntnisstand repraesentierenden Modellen durchgefuehrt werden sollte. (orig.)SIGLEAvailable from TIB Hannover: RN 8908(93-010,2) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Umwelt, Naturschutz und Reaktorsicherheit, Bonn (Germany)DEGerman

CERAPOWER Phase 2. Bd. 2 Berichtsteile Unterauftragnehmer. Abschlussbericht

The second volume contains six reports from the following subcontractors: Robert Bosch (fabrication of ZrO_2 foils or electrolytes), Hoechst CeramTec (fabrication of bipolar interconnectors consisting of lanthanum dioxochromate), Inocermic (low-pressure die casting of plate-type, thin-walled interconnectors), Lurgi (numeric design and optimization of a 10 MWatt system), and KFA (two tasks: 1. Shear experiments and stress relaxation measurements with vitroceramic filler materials, 2. R and D work for SOFC in the field of materials science and electrochemistry). (MM)Der 2. Band enthaelt sechs Berichtsteile von folgenden Unterauftragsnehmern: Robert Bosch (Entwicklung von ZrO_2-Folien bzw. -elektrolyten), Hoechst CeramTec (Herstellung von Biopolarplatten aus Lanthanchromit), Inocermic (Niederdruckspritzguss von plattenfoermigen duennwandigen Verbindungsplatten), Lurgi (theoretische Auslegung und Optimierung einer 10 MW Anlage) und KFA (1. Scherversuche und Spannungsrelaxationsmessungen an glaskeramischen Loten, 2. werkstoffkundliche und elektrochemische F und E-Arbeiten fuer SOFC). (MM)SIGLEAvailable from TIB Hannover: F96B1307+a / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Bildung, Wissenschaft, Forschung und Technologie, Bonn (Germany)DEGerman

TEMPUS Spulenerprobung auf KC-135. TEMPUS HF-Spulen: Verifikation unter reduzierter Schwerkraft durch Parabelfluege Schlussbericht

The objective of the project 'TEMPUS coil tests on KC-135' was the test of the optimized TEMPUS coil systems under microgravity conditions as well as a preliminary selection of the flight coil system for the MSL-1 mission. In previous projects the coil design was optimized for strong positioner forces at minimized heat input into the sample and for a homogeneous heater field. Prior to the KC135 campaign 3 coil systems of types E2, E3 and E4 were available. In order to test the performance of each coil, the KC135 facility was set up in Houston. During the flight campaign each of the 3 coil systems was tested during one flight. The tests comprised positioning tests with solid samples as well as melting tests with standard samples. On the fourth flight the coil system E2 which had previously shown the best results was retested. Based on these results the coil system E2 was selected as the baseline for further development. (orig.)Available from TIB Hannover: F98B305+a / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEBundesministerium fuer Bildung, Wissenschaft, Forschung und Technologie, Bonn (Germany); Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA) GmbH, Bonn (Germany)DEGerman

Atmos Programmunterstuetzung Endbericht

The study 'Atmos Programme Support' comprises parts of the national Atmos programme for terrestrial observation and for acquisition of environmentally relevant scientific data of the fields of land, water, and air. In particular, the investigation is to support the national organisation DARA in the development of the instrument AMAS (Advanced Millimeterwave Atmospheric Sounder) and in the identification of missions in which AMAS could take part. An adapted configuration was developed for AMAS as part of the payload during Atmos Phase B1. Parallel to Atmos Phase B2, further design investigations of AMAS were made, but no further adaptation of the configuration. As a result, it became necessary in the configuration on the one hand to take account of the latest design developments and on the other hand to adapt the accomodation to a possible carrier platform. Both POEM/Envisat and other (Russian) carriers are possible. Another aspect is the development of AMAS in the framework of a cost-sharing cooperation. (orig./AKF)Die Studie Atmos Programmunterstuetzung behandelt Teilbereiche des nationalen Atmos Programmes zur Erdbeobachtung und zur Beschaffung von umweltrelevanten wissenschaftlichen Daten aus den Bereichen Land, Wasser und Luft. Insbesonder liegt der Schwerpunkt der Studie in der Unterstuetzung des nationalen Auftraggebers DARA bei der Entwicklung des Instrumentes AMAS (Advanced Millimeterwave Atmospheric Sounder) sowie in der Identifizierung von Missionen, an denen AMAS teilnehmen koennte. Fuer AMAS als Teil der Nutzlast wurde waehrend der Atmos Phase B1 eine angepasste Konfiguration entwickelt. Parallel zur Atmos Phase B2 fanden weitere Designuntersuchungen von AMAS satt, aber keine weitere Adaption der Konfiguration. Daraus resultierte die Notwendigkeit, einerseits in der Konfiguration die letzten Designentwicklungen zu beruecksichtigen, andererseits aber auch die Akkommodation auf einer moeglichen Raegerplattform anzupassen. Hierbei kamen sowohl POEM/Envisat als auch andere - russische - Traeger in Frage. Ein zusaetzlicher Gesichtspunkt ist die Entwicklung von AMAS im Rahmen einer kostenteiligen Kooperation. (orig./AKF)SIGLEAvailable from TIB Hannover: D.Dt.F.QN1(18,54) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Forschung und Technologie (BMFT), Bonn (Germany)DEGerman

ProSmart. Demonstrationsbeispiele fuer innovative Geo-Informationsprodukte im Rahmen der Smart Initiative als Grundlage fuer InfoTerra/TerraSar Endbericht

Available from TIB Hannover: F00B666 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEBundesministerium fuer Bildung und Forschung (BMBF), Bonn (Germany)DEGerman

AMAS Phase B2. Final report

Our environment is being seriously affected by human activity. Of particular concern is the reduction of the ozone layer due to continuous release of man made substances such as chlorofluorocarbons (CFC's). Recent measurement campaigns show a dramatically increased concentration of chlorine monoxide (ClO) and an alarmingly thin ozone layer over the northern hemisphere. From this measurement data it is obvious that further monitoring and understanding of the complex chemistry of the middle atmosphere are of great importance. Collecting the necessary reliable, global data is best done by using spaceborne limb sounding instruments. The Advanced Millimeter-Wave Atmospheric Sounder AMAS as described in this report is an improved version of MAS, which is presently part of the NASA-ATLAS Space Shuttle payload. AMAS, which is proposed for a polar sun synchronous orbit, shall provide a nearly complete picture of the chlorine chemistry with respect to global ozone destruction. This final report of the Phase B2 describes in detail the technical concept of AMAS which is proposed for development and manufacture, and describes the system engineering approach that led to this concept. (orig.)SIGLEAvailable from TIB Hannover: F95B1756 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Forschung und Technologie (BMFT), Bonn (Germany)DEGerman

Refurbishment der Mehrzweckanlagen ELLI und GFQ. Phase C/D Schlussbericht

The multi-user-facilities ELLI and GFQ had been developed for their first (successful) operation within the playload-element MEDEA during the Spacelab-mission D1. Within the project the facilities have been prepared by a thorough refurbishment for their reflight with the Spacelab-mission D2. In parallel to the general refurbishment work the facilities have been modified, in the case of ELLI to a large extent. The reasons for the modifications are: -Experiences from the D1-mission; - changed mission requirements, - changed experiment-spectra. The engineering models also have been refurbished and modified correspondingly. By a nearly complete verification program the facilities have been qualified for the D2-mission. (orig.)Available from TIB Hannover: F94B1321 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEBundesministerium fuer Forschung und Technologie (BMFT), Bonn (Germany)DEGerman

Atmos. Phase B2: satellite design Definition report

ATMOS is a remote sensing satellite in a sunsynchronous polar orbit carrying four instruments for research and surveillance in the fields of global atmospheric and biospheric environment. This report deals with the technical aspects of the phase B2 which was performed by an industrial team led by Dornier as prime contractor under the direction of DARA. Based on updated requirements the system design, as well as the design of the subsystems, was revised and detailed. The interfaces, the environmental conditions, the AIV (Assembly, Integration and Verification) approach, the operational concept, the requirements on tests, on EMC (Electro-Magnetic Copatibility), on cleanliness, on ground support equipment, on instruments and on subsystems and units were defined and specified. Specifications were written accordingly. The efforts during the Phase B2 brought ATMOS to the state whereby a Phase C/D could almost immediately begin. (orig.)SIGLEAvailable from TIB Hannover: F96B1140 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Forschung und Technologie (BMFT), Bonn (Germany)DEGerman

Reverifikation Spulensystem TEMPUS auf Parabelfluegen mittels Modellprobensystemen Schlussbericht

The objective of the project 'Reverification of TEMPUS Coil System on Parabolic Flights' was the demonstration of the capability of the optimized TEMPUS coil system to stably position liquid samples under microgravity conditions as well as a final selection of the flight coil system for the MSL-1 mission. In previous projects the coil design was optimized for strong positioner forces at minimized heat input into the sample and for a homogeneous heater field which exerts only very small forces and torques on the samples. Furthermore, the permanent magnet system was optimized for damping of sample rotations. Prior to the KC135 campaign 3 similar coil systems of the E2 type were available. In order to test the performance of each coil, the KC135 facility was set up in Houston, and coupling tests with MSL-1 type samples were performed on the ground. During the flight campaign each of the 3 coil system was tested during one flight day. The tests comprised positioning tests with solid samples as well as melting and undercooling tests with liquid samples. On the fourth flight day the coil system E2a3 which had previously shown the best results was reflown. On that day test samples were routinely processed, melted and undercooled up to 200 C despite very strong microgravity disturbances. Based on these results the coil system E2a3 was selected as the flight coil system for the MSL-1 flight of the TEMPUS facility. In addition, prototype sample holders for the Spacelab flight were manufactured and tested for thermal shock resistance. The principal design of the flight sample holders was defined based on the requirements of the principal investigators. (orig.)SIGLEAvailable from TIB Hannover: DtF QN1(57,12) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Bildung, Wissenschaft, Forschung und Technologie, Bonn (Germany); Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA) GmbH, Bonn (Germany)DEGerman

TEMPUS MSL-1 Experimentatorenunterstuetzung Schlussbericht

The sample holders for the MSL-1 mission of TEMPUS were developed, manufactured and tested in the framework of this Experiment Support Project. Three sample holder types for the different experiment classed were developed: sample holders with a horizontal slit for the radial observation of strongly evaporating samples, sample holders with crossed slits for the observation of the nucleation front motion and cage sample holders for weakly evaporating samples for which a good radial observation was of special importance. In a prototype test program sample holders were build from different materials. Tests were performed with these prototypes, e.g. thermal shock tests with liquid sample materials at temperatures of up to 2000 C, vibration tests and tests of the coupling of the sample holders to the RF fields of the leviation coils. As a result, silicon nitride was selected as the material for the flight sample holders. After the Design Review sample holders were custom made for each of the flight experiments. In addition, a Ti-sample was integrated into a sample holder which was used as a sublimation pump during the mission. The sample holders were cleaned and shipped for sample integration to the Kennedy Space Center in special transport containers in an ultrapure noble gas atmosphere. In addition, parameter sets were developed for the new subsystems Residual Gas Analyzer and Active Sample Oscillation Damping. The parameter set development at DLR as well as the operation of the TEMPUS Development Model at DLR was supported by Dornier. (orig.)SIGLEAvailable from TIB Hannover: DtF QN1(57,14) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Bildung, Wissenschaft, Forschung und Technologie, Bonn (Germany); Deutsche Agentur fuer Raumfahrtangelegenheiten (DARA) GmbH, Bonn (Germany)DEGerman