@article{21743, author = {{Repenning, A. and C. Webb, D. and Brand, C. and Gluck, F. and Grover, R. and Miller, S. and Nickerson, H. and Song, M.}}, journal = {{IEEE Computer Graphics and Applications}}, number = {{3}}, pages = {{68--71}}, publisher = {{IEEE}}, title = {{{Beyond Minecraft: Facilitating Computational Thinking through Modeling and Programming in 3D}}}, doi = {{10.1109/MCG.2014.46}}, volume = {{34}}, year = {{2014}}, } @proceedings{7761, editor = {{Weskamp , Christoph and John , Thomas and Kundisch , Dennis and Teetz, Alexander and Rose, Mirko }}, title = {{{Towards a Simulation-based Approach for Evaluating Business Models for the Electric Vehicle Market}}}, year = {{2014}}, } @inproceedings{5749, author = {{Yigitbas, Enes and Fischer, Holger Gerhard and Sauer, Stefan}}, booktitle = {{Design, User Experience, and Usability. Theories, Methods, and Tools for Designing the User Experience - Third International Conference, {DUXU} 2014, Held as Part of {HCI} International 2014, Heraklion, Crete, Greece, June 22-27, 2014, Proceedings, Part {I}}}, pages = {{206--213}}, title = {{{Model-Based User Interface Development for Adaptive Self-Service Systems}}}, doi = {{10.1007/978-3-319-07668-3\_21}}, year = {{2014}}, } @inproceedings{462, abstract = {{We discuss a technique to analyze complex infinitely repeated games using techniques from the fields of game theory and simulations. Our research is motivated by the analysis of electronic markets with thousands of participants and possibly complex strategic behavior. We consider an example of a global market of composed IT services to demonstrate the use of our simulation technique. We present our current work in this area and we want to discuss further approaches for the future.}}, author = {{Feldotto, Matthias and Skopalik, Alexander}}, booktitle = {{Proceedings of the 4th International Conference on Simulation and Modeling Methodologies, Technologies and Applications (SIMULTECH 2014)}}, pages = {{625--630}}, title = {{{A Simulation Framework for Analyzing Complex Infinitely Repeated Games}}}, doi = {{10.5220/0005110406250630}}, year = {{2014}}, } @techreport{465, abstract = {{This article presents a novel Mixed Integer Nonlinear Programming (MINLP) approach for finding a renewal plan of pipes in a water distribution system. We formulate a MINLP model for finding the times of renewal and suited measurements of pipe dimensions in a multi-year planning horizon. The model includes a multi-period hydraulic simulation of the distribution systems behaviour thereby respecting the friction caused headloss as a nonlinear constraint. We apply the MINLP solver Bonmin to a test network and present first numerical results. The models embedding into a general solution framework for water network problems consisting of network reduction and simulation steps in an interated way, is beign discussed. This latter discussion corresponds well to the recent results by C. Hallmann for the problem of tank planning within the mentioned solution framework that has been presented there for the first time.}}, author = {{Stapel, Florian and Suhl, Leena}}, publisher = {{Universität Paderborn}}, title = {{{A MINLP Approach for Planning the Renewal of Pipes in Drinking Water Networks}}}, year = {{2014}}, } @inproceedings{759, author = {{Dräxler, Martin and Dreimann, Philipp and Karl, Holger}}, booktitle = {{IEEE Online Conference on Green Communications, OnlineGreenComm 2014, November 12-14, 2014}}, pages = {{1----7}}, title = {{{Anticipatory power cycling of mobile network equipment for high demand multimedia traffic}}}, doi = {{10.1109/OnlineGreenCom.2014.7114415}}, year = {{2014}}, } @inproceedings{760, author = {{Auroux, Sebastien and Karl, Holger}}, booktitle = {{25th IEEE Annual International Symposium on Personal, Indoor, and Mobile Radio Communication, {PIMRC} 2014, Washington DC, USA, September 2-5, 2014}}, pages = {{1294----1299}}, title = {{{Flow processing-aware controller placement in wireless DenseNets}}}, doi = {{10.1109/PIMRC.2014.7136368}}, year = {{2014}}, } @inproceedings{762, author = {{Schwabe, Arne and Karl, Holger}}, booktitle = {{Proceedings of the third workshop on Hot topics in software defined networking, HotSDN '14, Chicago, Illinois, USA, August 22, 2014}}, pages = {{115----120}}, title = {{{Using MAC addresses as efficient routing labels in data centers}}}, doi = {{10.1145/2620728.2620730}}, year = {{2014}}, } @article{9882, abstract = {{An automotive suspension system represents one of the most complex and important systems in a passenger vehicle, which has to ensure a robust and optimized contact between the wheels and the road at any time. For improving a suspension system it is important to take an investigative look at the interaction between suspension, tire and road dynamics. Thus a part of a study into aspects of suspension modeling on multi-body simulations of rear multi-link suspension system dynamics with focus on the tire footprint area is presented in this work.}}, author = {{Kohl, Sergej and Sextro, Walter and Zuber, Armin}}, issn = {{1617-7061}}, journal = {{PAMM}}, number = {{1}}, pages = {{65--66}}, publisher = {{WILEY-VCH Verlag}}, title = {{{Tire footprint analysis depending on the elastokinematics of a multi-link suspension system using multi-body dynamics simulation}}}, doi = {{10.1002/pamm.201410020}}, volume = {{14}}, year = {{2014}}, } @inproceedings{9895, abstract = {{Power semiconductor modules are used to control and switch high electrical currents and voltages. Within the power module package wire bonding is used as an interconnection technology. In recent years, aluminum wire has been used preferably, but an ever-growing market of powerful and efficient power modules requires a material with better mechanical and electrical properties. For this reason, a technology change from aluminum to copper is indispensable. However, the copper wire bonding process reacts more sensitive to parameter changes. This makes manufacturing reliable copper bond connections a challenging task. The aim of the BMBF funded project Itsowl-InCuB is the development of self-optimizing techniques to enable the reliable production of copper bond connections under varying conditions. A model of the process is essential to achieve this aim. This model needs to include the dynamic elasto-plastic deformation, the ultrasonic softening effect and the proceeding adhesion between wire and substrate. This paper focusses on the pre-deformation process. In the touchdown phase, the wire is pressed into the V-groove of the tool and a small initial contact area between wire and substrate arise. The local characteristics of the material change abruptly because of the cold forming. Consequently, the pre-deformation has a strong effect on the joining process. In [1], a pre-cleaning effect during the touchdown process of aluminum wires by cracking of oxide layers was presented. These interactions of the process parameters are still largely unknown for copper. In a first step, this paper validates the importance of modeling the pre-deformation by showing its impact on the wire deformation characteristic experimentally. Creating cross-section views of pre-deformed copper wires has shown a low deformation degree compared to aluminum. By using a digital microscope and a scanning confocal microscope an analysis about the contact areas and penetration depths after touchdown has been made. Additionally, it has to be taken into account that the dynamical touchdown force depends on the touchdown speed and the touchdown force set in the bonding machine. In order to measure the overshoot in the force signals, a strain gauge sensor has been used. Subsequently, the affecting factors have been interpreted independently Furthermore, the material properties of copper wire have been investigated with tensile tests and hardness measurements. In a second step, the paper presents finite element models of the touchdown process for source and destination bonds. These models take the measured overshoot in the touchdown forces into account. A multi-linear, isotropic material model has been selected to map the material properties of the copper. A validation of the model with the experimental determined contact areas, normal pressures and penetration depths reveals the high model quality. Thus, the simulation is able to calculate and visualize the three dimensional pre-deformation with an integrated material parameter of the wire if the touchdown parameters of the bonding machine are known. Based on the calculated deformation degrees of wire and substrate, it is probably possible to investigate the effect of the pre-deformation on the pre-cleaning phase in the copper wire bonding.}}, author = {{Unger, Andreas and Sextro, Walter and Althoff, Simon and Eichwald, Paul and Meyer, Tobias and Eacock, Florian and Brökelmann, Michael}}, booktitle = {{Proceedings of the 47th International Symposium on Microelectronics (IMAPS)}}, keywords = {{pre-deformation, copper wire bonding, finite element model}}, pages = {{289--294}}, title = {{{Experimental and Numerical Simulation Study of Pre-Deformed Heavy Copper Wire Wedge Bonds}}}, year = {{2014}}, } @inbook{3941, author = {{Declair, Stefan and Förstner, Jens}}, booktitle = {{Handbook of Optical Microcavities}}, editor = {{Choi, Anthony H.W.}}, keywords = {{tet_topic_phc}}, publisher = {{Pan Stanford Publishing Pte. Ltd.}}, title = {{{Simulation of Planar Photonic Resonators}}}, volume = {{Kapitel 2}}, year = {{2014}}, } @inproceedings{6940, author = {{Krauter, Stefan}}, booktitle = {{Proceedings of the 29th European Photovoltaic Solar Energy Conference and Exhibition, Amsterdam (The Netherlands), September 22-16, 2014 }}, title = {{{Plant layout modifications and load adaptation to integrate Photovoltaics in the energy system.}}}, year = {{2014}}, } @inproceedings{1647, author = {{Dräxler, Martin and Karl, Holger}}, booktitle = {{Proceedings of 20th European Wireless Conference }}, title = {{{Feasibility of Base Station Coordination and Dynamic Backhaul Network Configuration in Backhaul Networks with Limited Capacity}}}, year = {{2014}}, } @inproceedings{16760, author = {{Arens, S. and Domik, Gitta and Weise, R. and Holzinger, J. and Burchert, W.}}, location = {{Hannover}}, title = {{{Optimierte 3D Morphologiedarstellung tomographischer Datensätze des Herzens}}}, year = {{2014}}, } @phdthesis{10733, abstract = {{Monte-Carlo Tree Search (MCTS) is a class of simulation-based search algorithms. It brought about great success in the past few years regarding the evaluation of deterministic two-player games such as the Asian board game Go. In this thesis, we present a parallelization of the most popular MCTS variant for large HPC compute clusters that efficiently shares a single game tree representation in a distributed memory environment and scales up to 128 compute nodes and 2048 cores. It is hereby one of the most powerful MCTS parallelizations to date. In order to measure the impact of our parallelization on the search quality and remain comparable to the most advanced MCTS implementations to date, we implemented it in a state-of-the-art Go engine Gomorra, making it competitive with the strongest Go programs in the world. We further present an empirical comparison of different Bayesian ranking systems when being used for predicting expert moves for the game of Go and introduce a novel technique for automated detection and analysis of evaluation uncertainties that show up during MCTS searches.}}, author = {{Schäfers, Lars}}, isbn = {{978-3-8325-3748-7}}, pages = {{133}}, publisher = {{Logos Verlag Berlin GmbH}}, title = {{{Parallel Monte-Carlo Tree Search for HPC Systems and its Application to Computer Go}}}, year = {{2014}}, } @inproceedings{11996, author = {{Eckert, Juergen and Sommer, Christoph and Eckhoff, David}}, booktitle = {{Proceedings of the 11th ACM symposium on Performance evaluation of wireless ad hoc, sensor, & ubiquitous networks - PE-WASUN '14}}, isbn = {{9781450330251}}, title = {{{Towards a simulation framework for paraglider networks}}}, doi = {{10.1145/2653481.2655754}}, year = {{2014}}, } @inproceedings{15090, author = {{Böttcher, Stefan and Brandenburg, Marc and Hartel, Rita}}, booktitle = {{Proceedings of the Second Australasian Web Conference}}, pages = {{13--20}}, publisher = {{Australian Computer Society, Inc.}}, title = {{{Keyword Search on DAG-Compressed XML Data}}}, year = {{2014}}, } @inproceedings{15092, author = {{Böttcher, Stefan and Hartel, Rita and Rabe, Jonathan}}, booktitle = {{Database and Expert Systems Applications - 25th International Conference, DEXA 2014}}, isbn = {{9783319100722}}, issn = {{0302-9743}}, pages = {{122--137}}, publisher = {{Springer}}, title = {{{Efficient XML Keyword Search Based on DAG-Compression}}}, doi = {{10.1007/978-3-319-10073-9_11}}, year = {{2014}}, } @inproceedings{16120, author = {{Block, Holger and Marten, Thorsten and Tröster, Thomas}}, location = {{Braunschweig}}, title = {{{Crash simulation of high strength automotive components using advanced failure models}}}, year = {{2014}}, } @inproceedings{16129, author = {{Reuter, Corin and Flore, Dominik and Pöhler, Simon and Sauerland, Kim Henning and Tröster, Thomas}}, location = {{Leipzig}}, title = {{{Numerical simulation of the energy absorption of fiber-reinforced plastics}}}, year = {{2014}}, }