@inbook{9536, abstract = {{This paper presents a model for unsteady longitudinal slippage of a loaded rubber wheel. The aim of modelling was to calculate the dynamical contact behavior in a numerical efficient way. Further on, simulation results are compared to experimental data.}}, author = {{Gutzeit, F and Sextro, Walter and Kröger, Matthias}}, booktitle = {{Analysis and Simulation of Contact Problems}}, editor = {{Wriggers, Peter and Nackenhorst, Udo}}, isbn = {{978-3-540-31760-9}}, pages = {{261--270}}, publisher = {{Springer Berlin Heidelberg}}, title = {{{Unsteady rolling contact of rubber wheels}}}, doi = {{10.1007/3-540-31761-9_29}}, volume = {{27}}, year = {{2006}}, } @article{9546, abstract = {{Rotary ultrasonic motors have found broad industrial application in camera lens drives and other systems. Linear ultrasonic motors in contrast have only found limited applications. The main reason for the limited range of application of these very attractive devices seems to be their small force and power range. Attempts to build linear ultrasonic motors for high forces and high power applications have not been truly successful yet. To achieve larger force and higher power, multiple miniaturized motors can be combined. This approach, however, is not as simple as it appears at first glance. The electromechanical behaviour of the individual motors differs slightly due to manufacturing and assembly tolerances. The individual motor characteristics are strongly dependent on the driving parameters (frequency, voltage, temperature, pre-stress, etc.) and the driven load and the collective behaviour of the swarm of motors is not just the linear superposition of the individual drive's forces. Thus, the bundle of motors has to be synchronized and controlled appropriately in order to obtain an optimized drive that is not oversized and costly. We have investigated driving and control strategies of a set of linear ultrasonic motors. Our contribution will be divided into three main parts. In part I ultrasonic linear motors will be introduced. In part II driving strategies for a single motor as well as for a bundle of motors will be presented. These concepts will be verified by simulation results and experimental data. In part III a simplified model for the motor's electromechanical behaviour will be given.}}, author = {{Mracek, Maik and Hemsel, Tobias}}, issn = {{0041-624X}}, journal = {{Ultrasonics}}, keywords = {{Ultrasonic linear motor}}, pages = {{e597 -- e602}}, title = {{{Synergetic driving concepts for bundled miniature ultrasonic linear motors}}}, doi = {{10.1016/j.ultras.2006.05.201}}, volume = {{44, Supplement}}, year = {{2006}}, } @inbook{9551, abstract = {{Friction occurs in the contact between tyre and road. The friction of rubber material on dry surfaces is dominated by hysteresis and adhesion effects. Hysterisis friction is characterised by the energy dissipation within the visco-elastic material, which is caused by its deformation while passing the surface roughness. Hysteresis effects are modelled by an extended linear visco-elastic material with several Maxwell elements. The development of a model in the time domain allows to consider nonlinear effects. Additionally temperature effects are taken into account based on the WLF-transformation. Adhesion forces originate from molecular bindings between the contact partners. This effect is simulated by applying a modified model of Achenbach on real surfaces. The temperature distribution within the friction contact region is investigated experimentally as well. Furthermore global stick-slip vibrations of a rubber block element are investigated using a global contact model. Numerical results are compared with experiments performed on a tribometer test rig.}}, author = {{Sextro, Walter and Moldenhauer, Patrick and Wangenheim, M and Lindner, Markus and Kröger, Matthias}}, booktitle = {{Analysis and Simulation of Contact Problems}}, editor = {{Wriggers, Peter and Nackenhorst, Udo}}, isbn = {{978-3-540-31760-9}}, pages = {{243--252}}, publisher = {{Springer Berlin Heidelberg}}, title = {{{Contact behaviour of a sliding rubber element}}}, doi = {{10.1007/3-540-31761-9_27}}, volume = {{27}}, year = {{2006}}, } @inproceedings{8307, author = {{Krauter, Stefan and Grunow, Paul}}, booktitle = {{Proceedings of the 4th World Conference on Photovoltaic Energy Conversion (Joint congress of IEEE/PVSEC/EUPVC), Waikoloa, Hawaii (USA), 8.–12. Mai 2006, S. 2133–2137}}, title = {{{Optical modelling and simulation of PV module encapsulation to improve structure and material properties for maximum energy yield}}}, year = {{2006}}, } @inproceedings{8310, author = {{Krauter, Stefan and Grunow, Paul}}, booktitle = {{Proceedings of the 21st European Photovoltaic Solar Energy Conference and Exhibition, Dresden, 4.–8. September 2006, S. 2065–2068}}, title = {{{Optical simulation to enhance PV module encapsulation}}}, year = {{2006}}, } @inbook{16559, author = {{Dellnitz, Michael and Molo, Mirko Hessel-von and Metzner, Philipp and Preis, Robert and Schütte, Christof}}, booktitle = {{Analysis, Modeling and Simulation of Multiscale Problems}}, isbn = {{9783540356561}}, title = {{{Graph Algorithms for Dynamical Systems}}}, doi = {{10.1007/3-540-35657-6_23}}, year = {{2006}}, } @inproceedings{16881, author = {{Lindner, M. and Goetz, F. and Weise, R. and Fricke, H. and Burchert, W. and Domik, Gitta}}, location = {{Berlin}}, title = {{{Interaktive 3D-Visualisierung multidimensionaler Datensätze}}}, year = {{2006}}, } @inbook{36074, author = {{Bartsch, Silke and Methfessel, Barbara and Schlegel-Matthies, Kirsten}}, booktitle = {{Mediterranean Food. Concepts and Trends. Proceedings of the 15th International Ethnological Food Research Conference, Dubrovnik, 27 September - 3 October}}, editor = {{ Lysaght, Patricia and Rittig-Beljak, Nives}}, pages = {{149 -- 172}}, title = {{{ Pizza, Pasta und Döner Kebab: Mediterranean Dishes in the Everyday Life of German Young People}}}, year = {{2006}}, } @article{36072, author = {{Schlegel-Matthies, Kirsten and Methfessel, Barbara and Bartsch, Silke}}, issn = {{0342-5088}}, journal = {{Haushalt & Bildung}}, number = {{4}}, pages = {{17--26}}, publisher = {{Schneider-Verlag}}, title = {{{Pizza, Pasta, Döner Kebab - Mittelmeerkost im Alltag deutscher Jugendlicher. Historische und soziale Hintergründe}}}, volume = {{83}}, year = {{2006}}, } @article{36071, author = {{Schlegel-Matthies, Kirsten and Methfessel, Barbara}}, issn = {{0342-5088}}, journal = {{Haushalt & Bildung}}, number = {{4}}, pages = {{37--46}}, publisher = {{Schneider-Verlag}}, title = {{{Mittelmeerkost im Alltag deutscher Jugendlicher - Ein Lehr-Forschungsprojekt mit Studierenden in Heidelberg und Paderborn}}}, volume = {{83}}, year = {{2006}}, } @misc{47649, author = {{Funke, Rafael}}, title = {{{Implementierung und Simulation von Cache-Angriffen auf AES}}}, year = {{2006}}, } @article{27894, author = {{Philipps, U. and Bigga, Regine}}, journal = {{Haushalt & Bildung}}, number = {{1}}, pages = {{59--64}}, title = {{{Zur Entwicklung eines Kerncurriculums für den Lernbereich „Arbeitslehre"}}}, volume = {{83}}, year = {{2006}}, } @inproceedings{38538, abstract = {{Neither UML 2.0 nor the upcoming SysML 1.0 currently provides suffi- cient means for applications in the context of heterogeneous electronic systems de- scription and simulation. In this article, we demonstrate how general concepts of the simulation framework Ptolemy II seamlessly complement SysML to serve as a uni- versal description language covering discrete event as well as continuous behaviors.}}, author = {{Müller, Wolfgang and Zabel, Henning}}, booktitle = {{Proceedings of the UML-SoC Workshop at DAC 2006}}, title = {{{Towards a Unified Behavioural Modelling Language}}}, year = {{2006}}, } @inproceedings{40887, abstract = {{In this paper, a new second-order statistics (SOS) based method for blind decoding of orthogonal space time block coded (OSTBC) systems with only one receive antenna is proposed. To avoid the in- herent ambiguities of this problem, the spatial correlation matrix of the source signals must be non-white and known at the receiver. In practice, this can be achieved by a number of simple linear preco- ding techniques at the transmitter side. More specifically, it is shown in the paper that if the source correlation matrix has different eigen- values, then the decoding process can be formulated as the problem of maximizing the sum of a set of weighted variances of the signal estimates. Exploiting the special structure of OSTBCs, this problem can be reduced to a principal component analysis (PCA) problem, which allows us to derive computationally efficient batch and adap- tive blind decoding algorithms. The algorithm works for any OSTBC (including the popular Alamouti code) with a single receive antenna. Some simulation results are presented to demonstrate the potential of the proposed procedure.}}, author = {{Vía, J. and Santamaría, I. and Pérez, J. and Ramírez, D.}}, booktitle = {{Proc.\ IEEE Int.\ Conf.\ Acoustics, Speech and Signal Process.}}, title = {{{Blind decoding of MISO-OSTBC systems based on principal component analysis}}}, doi = {{10.1109/ICASSP.2006.1661026}}, year = {{2006}}, } @inproceedings{40889, abstract = {{Clipping is applied to superposition coding systems to reduce the peak-to-average power ratio (PAPR) of the transmitted signal. The performance limit is investigated through evaluating the mutual information driven by the induced peak-power-limited input signals. It is shown that the channel capacity can be approached by clipped superposition coding systems. To alleviate the performance degradation due to clipping noises, we develop a soft compensation algorithm that is combined with soft-input-soft-output (SISO) decoding algorithms in an iterative manner. Simulation results show that with the proposed algorithm, most performance loss can be recovered.}}, author = {{Tong, Jun and Ping, Li}}, booktitle = {{6th\ Int.\ Symp.\ Turbo Codes & Rel.\ Top.}}, pages = {{1–6}}, title = {{{Iterative decoding of superposition coding}}}, year = {{2006}}, } @article{42927, author = {{Matzner, Tobias}}, journal = {{Simulation Next, Munitionsfabrik Nr. 17 (2006)}}, pages = {{71--73}}, title = {{{Kleine Chance für Subjekte?}}}, year = {{2006}}, } @misc{47412, author = {{Berndt, Axel}}, publisher = {{Otto-von-Guericke University, Department of Simulation and Graphics}}, title = {{{Repräsentation musikalischer Metainformationen}}}, year = {{2006}}, } @phdthesis{25228, author = {{Matysczok, Carsten}}, publisher = {{Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn}}, title = {{{Dynamische Kantenextraktion: Ein Verfahren zur Generierung von Tracking-Informationen für Augmented Reality-Anwendungen auf Basis von 3D-Referenzmodellen}}}, volume = {{165}}, year = {{2005}}, } @article{2412, abstract = {{ Reconfigurable architectures that tightly integrate a standard CPU core with a field-programmable hardware structure have recently been receiving impact of these design decisions on the overall system performance is a challenging task. In this paper, we first present a framework for the cycle-accurate performance evaluation of hybrid reconfigurable processors on the system level. Then, we discuss a reconfigurable processor for data-streaming applications, which attaches a coarse-grained reconfigurable unit to the coprocessor interface of a standard embedded CPU core. By means of a case study we evaluate the system-level impact of certain design features for the reconfigurable unit, such as multiple contexts, register replication, and hardware context scheduling. The results illustrate that a system-level evaluation framework is of paramount importance for studying the architectural trade-offs and optimizing design parameters for reconfigurable processors.}}, author = {{Enzler, Rolf and Plessl, Christian and Platzner, Marco}}, journal = {{Microprocessors and Microsystems}}, keywords = {{FPGA, reconfigurable computing, co-simulation, Zippy}}, number = {{2-3}}, pages = {{63--73}}, publisher = {{Elsevier}}, title = {{{System-level performance evaluation of reconfigurable processors}}}, doi = {{10.1016/j.micpro.2004.06.004}}, volume = {{29}}, year = {{2005}}, } @article{25931, author = {{Buyken, Anette and Dettmann, W and Kersting, M and Kroke, A}}, issn = {{0007-1145}}, journal = {{Br J Nutr}}, number = {{5}}, pages = {{796--803}}, title = {{{Glycaemic index and glycaemic load in the diet of healthy schoolchildren: trends from 1990 to 2002, contribution of different carbohydrate sources and relationships to dietary quality.}}}, doi = {{10.1079/bjn20051537}}, volume = {{94}}, year = {{2005}}, }