@inproceedings{23223, author = {{Koke, Isabel and Müller, Wolfgang H. and Ferber, Ferdinand and Mahnken, Rolf}}, booktitle = {{Proceedings Composites 2009, 2nd ECCOMAS Thematic Conference on the Mechanical Response of Composites, 01.-03.04.2009}}, pages = {{1--8}}, title = {{{Photogrammetric Methods Used for Measuring Elastic Constants in Hand-Laminated Fiber-Plastics-Composites}}}, year = {{2009}}, } @inproceedings{23242, author = {{Koke, Isabel and Müller, Wolfgang H. and Ferber, Ferdinand and Mahnken, Rolf}}, booktitle = {{Proceedings Composites 2009, 2nd ECCOMAS Thematic Conference on the Mechanical Response of Composites, 01.-03.04.2009}}, pages = {{1--8}}, title = {{{Photogrammetric Methods Used for Measuring Elastic Constants in Hand-Laminated Fiber-Plastics-Composites}}}, year = {{2009}}, } @article{14915, author = {{Blaufus, Kay and Hundsdoerfer, Jochen and Kiesewetter, Dirk and König, Rolf J. and Kruschwitz, Lutz and Löffler, Andreas and Maiterth, Ralf and Müller, Heiko and Niemann, Rainer and Schanz, Deborah and Sureth-Sloane, Caren and Treisch, Corinna}}, journal = {{Schmalenbachs Zeitschrift für betriebswirtschaftliche Forschung}}, number = {{4}}, pages = {{463--466}}, title = {{{Versinkt die Kapitalmarkttheorie in logischen Widersprüchen, oder: Ist arqus e.V. aus dem Schneider?}}}, volume = {{61}}, year = {{2009}}, } @article{14923, author = {{Sureth-Sloane, Caren and Halberstadt, Alexander and Bischoff, Dennis}}, journal = {{Steuer und Wirtschaft}}, number = {{1}}, pages = {{50--62}}, title = {{{Der Einfluss von Internationalisierung, Vermögens- und Kapitalstruktur auf die Konzernsteuerquote im Branchenvergleich - eine empirische Analyse}}}, volume = {{86}}, year = {{2009}}, } @article{14919, author = {{Müller, Heiko and Sureth-Sloane, Caren}}, journal = {{International Journal of Microsimulation}}, number = {{1}}, pages = {{32--48}}, title = {{{Income Tax Analysis: A Comparison of Microsimulation versus Group Simulation}}}, volume = {{2}}, year = {{2009}}, } @article{41367, author = {{Seifert, Andreas and Hilligus, Annegret Helen and Schaper, Niclas}}, journal = {{Lehrerbildung auf dem Prüfstand}}, number = {{1}}, pages = {{82--103}}, title = {{{Entwicklung und psychometrische Überprüfung eines Messinstruments zur Erfassung pädagogischer Kompetenzen in der universitären Lehrerbildung.}}}, volume = {{2}}, year = {{2009}}, } @inproceedings{41465, author = {{König, Johannes and Seifert, Andreas and Blömeke, Sigrid and Schaper, Niclas}}, booktitle = {{AEPF-Tagung „Selbstregulation – Fremdregulation“}}, location = {{Bochum}}, title = {{{LEK – Längsschnittliche Erhebung pädagogischer Kompetenzen von Lehramtsstudierenden: Testinstrumente, Forschungsdesign und Fragestellungen.}}}, year = {{2009}}, } @inproceedings{41472, author = {{Seifert, Andreas and Schaper, Niclas}}, booktitle = {{AEPF-KBBB-Tagung}}, location = {{Landau}}, title = {{{Welche Dimensionen bzw. Modellstruktur liegt der Messung pädagogischer Kompetenz in der universitären Lehrerausbildung zugrunde?}}}, year = {{2009}}, } @article{25975, abstract = {{The synthesis and characterization of ordered mesoporous In2O3 materials by structure replication from hexagonal mesoporous SBA-15 silica and cubic KIT-6 silica is presented. Variation of the synthesis parameters allows for different pore sizes and pore wall thicknesses in the products. The In2O3 samples turn out to be stable up to temperatures between 450 °C and 650 °C; such high thermal stability is necessary for their application as gas sensors. Test measurements show a high sensitivity to methane gas in concentrations relevant for explosion prevention. The sensitivity is shown to be correlated not only with the surface-to-volume ratio, but also with the nanoscopic structural properties of the materials.}}, author = {{Waitz, Thomas and Wagner, Thorsten and Sauerwald, Tilman and Kohl, Claus-Dieter and Tiemann, Michael}}, issn = {{1616-301X}}, journal = {{Advanced Functional Materials}}, pages = {{653--661}}, title = {{{Ordered Mesoporous In2O3: Synthesis by Structure Replication and Application as a Methane Gas Sensor}}}, doi = {{10.1002/adfm.200801458}}, year = {{2009}}, } @article{25977, abstract = {{We report a systematic study of the photoluminescence properties of ZnO nanostructures. In particular, mesoporous ZnO powders of varying surface-to-mass ratio are investigated and compared to a bulk reference. At low temperatures the emission from higher-energy states is very pronounced and even dominant for samples with high surface-to-mass ratio.}}, author = {{Schwalm, Michael and Horst, Swantje and Chernikov, Alexej and Rühle, Wolfgang W. and Lautenschläger, Stephan and Klar, Peter J. and Meyer, Bruno K. and Waitz, Thomas and Tiemann, Michael and Chatterjee, Sangam}}, issn = {{1610-1634}}, journal = {{physica status solidi (c)}}, pages = {{542--545}}, title = {{{Time-resolved photoluminescence study of mesoporous ZnO nanostructures}}}, doi = {{10.1002/pssc.200880315}}, year = {{2009}}, } @book{21476, author = {{Homberg, Werner and Hornjak, Daniel and Beerwald, Charlotte and Rostek, Tim and Kunert, Joachim and Wilk, D. }}, publisher = {{Auerbach}}, title = {{{Incremental forming of tubes and sheets assisted by friction-induced heating}}}, year = {{2009}}, } @article{25974, abstract = {{We present the preparation of a semiconductor gas sensor based on ordered mesoporous In2O3. The In2O3 was synthesized by structure replication procedure from cubic KIT-6 silica. A detailed analysis of the morphology of the mesoporous powders as well as of the prepared sensing layer will be shown. Unique properties arise from the synthesis method of structure replication such as well defined porosity in the mesoporous regime and nanocrystallites with high thermal stability up to 450 °C. These properties are useful for the application in semiconducting gas sensors. Test measurements show sensitivity to methane gas in concentrations relevant for explosion prevention.}}, author = {{Wagner, T. and Sauerwald, T. and Kohl, C.-D. and Waitz, T. and Weidmann, C. and Tiemann, Michael}}, issn = {{0040-6090}}, journal = {{Thin Solid Films}}, pages = {{6170--6175}}, title = {{{Gas sensor based on ordered mesoporous In2O3}}}, doi = {{10.1016/j.tsf.2009.04.013}}, year = {{2009}}, } @article{25976, abstract = {{Halbleitende Metalloxid-Gassensoren werden sowohl im industriellen Bereich als auch im Haushalt zur Luftüberwachung verwendet. Die Funktionsweise basiert auf einer reversiblen Änderung des Sensorwiderstandes in Anwesenheit sowohl oxidierender als auch reduzierender Gase, die mit einfachen Mitteln gemessen werden kann. In diesem Artikel wird vorgestellt, wie sich die bei der Gasdetektion ablaufenden Vorgänge mit Hilfe des Ionosorptionsmodells in Kombination mit einem einfachen Festkörperbändermodell deuten lassen. Abschließend werden einfache, im Chemieunterricht zu realisierende Experimente mit Gassensoren präsentiert.}}, author = {{Waitz, Thomas and Tiemann, Michael}}, issn = {{0944-5846}}, journal = {{CHEMKON}}, pages = {{183--186}}, title = {{{Halbleitende Metalloxide als Gassensoren im Chemieunterricht}}}, doi = {{10.1002/ckon.200910099}}, year = {{2009}}, } @inproceedings{46886, author = {{Güldenpenning, Iris and Schack, Thomas}}, booktitle = {{Informations- und Kommunikationstechnologien in der Sportmotorik. Abstractband zur 11. Tagung der dvs-Sektion Sportmotorik}}, editor = {{Baumgärtner, S.D. and Hänsel, F. and Wiemeyer, J.}}, location = {{Darmstadt}}, pages = {{21--23}}, title = {{{Die Wahrnehmung handlungstriggernder Bedingungen im Sport}}}, year = {{2009}}, } @inproceedings{46913, author = {{Güldenpenning, Iris and Kunde, Wilfried and Weigelt, Matthias and Schack, Thomas}}, booktitle = {{Menschen in Bewegung - Sportpsychologie zwischen Tradition und Zukunft. 41. Jahrestagung der Arbeitsgemeinschaft für Sportpsychologie (asp)}}, editor = {{Pfeffer, I. and Alfermann, D.}}, location = {{Leipzig}}, pages = {{61}}, publisher = {{Feldhaus Edition Czwalina}}, title = {{{Temporale Relationen interner Bewegungsrepräsentationen}}}, year = {{2009}}, } @inproceedings{2350, abstract = {{Mapping applications that consist of a collection of cores to FPGA accelerators and optimizing their performance is a challenging task in high performance reconfigurable computing. We present IMORC, an architectural template and highly versatile on-chip interconnect. IMORC links provide asynchronous FIFOs and bitwidth conversion which allows for flexibly composing accelerators from cores running at full speed within their own clock domains, thus facilitating the re-use of cores and portability. Further, IMORC inserts performance counters for monitoring runtime data. In this paper, we first introduce the IMORC architectural template and the on-chip interconnect, and then demonstrate IMORC on the example of accelerating the k-th nearest neighbor thinning problem on an XD1000 reconfigurable computing system. Using IMORC's monitoring infrastructure, we gain insights into the data-dependent behavior of the application which, in turn, allow for optimizing the accelerator. }}, author = {{Schumacher, Tobias and Plessl, Christian and Platzner, Marco}}, booktitle = {{Proc. Int. Symp. on Field-Programmable Custom Computing Machines (FCCM)}}, isbn = {{978-1-4244-4450-2}}, keywords = {{IMORC, interconnect, performance}}, pages = {{275--278}}, publisher = {{IEEE Computer Society}}, title = {{{IMORC: Application Mapping, Monitoring and Optimization for High-Performance Reconfigurable Computing}}}, doi = {{10.1109/FCCM.2009.25}}, year = {{2009}}, } @inproceedings{2262, abstract = {{In this work we present EvoCache, a novel approach for implementing application-specific caches. The key innovation of EvoCache is to make the function that maps memory addresses from the CPU address space to cache indices programmable. We support arbitrary Boolean mapping functions that are implemented within a small reconfigurable logic fabric. For finding suitable cache mapping functions we rely on techniques from the evolvable hardware domain and utilize an evolutionary optimization procedure. We evaluate the use of EvoCache in an embedded processor for two specific applications (JPEG and BZIP2 compression) with respect to execution time, cache miss rate and energy consumption. We show that the evolvable hardware approach for optimizing the cache functions not only significantly improves the cache performance for the training data used during optimization, but that the evolved mapping functions generalize very well. Compared to a conventional cache architecture, EvoCache applied to test data achieves a reduction in execution time of up to 14.31% for JPEG (10.98% for BZIP2), and in energy consumption by 16.43% for JPEG (10.70% for BZIP2). We also discuss the integration of EvoCache into the operating system and show that the area and delay overheads introduced by EvoCache are acceptable. }}, author = {{Kaufmann, Paul and Plessl, Christian and Platzner, Marco}}, booktitle = {{Proc. NASA/ESA Conference on Adaptive Hardware and Systems (AHS)}}, keywords = {{EvoCache, evolvable hardware, computer architecture}}, pages = {{11--18}}, publisher = {{IEEE Computer Society}}, title = {{{EvoCaches: Application-specific Adaptation of Cache Mapping}}}, year = {{2009}}, } @inproceedings{2352, author = {{Beutel, Jan and Gruber, Stephan and Hasler, Andi and Lim, Roman and Meier, Andreas and Plessl, Christian and Talzi, Igor and Thiele, Lothar and Tschudin, Christian and Woehrle, Matthias and Yuecel, Mustafa}}, booktitle = {{Proc. Int. Conf. on Information Processing in Sensor Networks (IPSN)}}, isbn = {{978-1-4244-5108-1}}, keywords = {{WSN, PermaSense}}, pages = {{265--276}}, publisher = {{IEEE Computer Society}}, title = {{{PermaDAQ: A Scientific Instrument for Precision Sensing and Data Recovery in Environmental Extremes}}}, year = {{2009}}, } @inproceedings{2238, author = {{Schumacher, Tobias and Süß, Tim and Plessl, Christian and Platzner, Marco}}, booktitle = {{Proc. Int. Conf. on ReConFigurable Computing and FPGAs (ReConFig)}}, isbn = {{978-0-7695-3917-1}}, keywords = {{IMORC, graphics}}, pages = {{119--124}}, publisher = {{IEEE Computer Society}}, title = {{{Communication Performance Characterization for Reconfigurable Accelerator Design on the XD1000}}}, doi = {{10.1109/ReConFig.2009.32}}, year = {{2009}}, } @inproceedings{2261, author = {{Schumacher, Tobias and Plessl, Christian and Platzner, Marco}}, booktitle = {{Proc. Int. Conf. on Field Programmable Logic and Applications (FPL)}}, isbn = {{978-1-4244-3892-1}}, issn = {{1946-1488}}, keywords = {{IMORC, NOC, KNN, accelerator}}, pages = {{338--344}}, publisher = {{IEEE}}, title = {{{An Accelerator for k-th Nearest Neighbor Thinning Based on the IMORC Infrastructure}}}, year = {{2009}}, }