@inproceedings{16263, author = {{Wingenbach, Nils and Tröster, Thomas}}, location = {{Stuttgart}}, title = {{{Material follows form follows function}}}, year = {{2015}}, } @article{16331, author = {{Wilfer, Claudia and Liebhäuser, Patricia and Hoffmann, Alexander and Erdmann, Hannes and Grossmann, Oleg and Runtsch, Leander and Paffenholz, Eva and Schepper, Rahel and Dick, Regina and Bauer, Matthias and Dürr, Maximilian and Ivanović-Burmazović, Ivana and Herres-Pawlis, Sonja}}, issn = {{0947-6539}}, journal = {{Chemistry - A European Journal}}, pages = {{17639--17649}}, title = {{{Efficient Biomimetic Hydroxylation Catalysis with a Bis(pyrazolyl)imidazolylmethane Copper Peroxide Complex}}}, doi = {{10.1002/chem.201501685}}, year = {{2015}}, } @inproceedings{1636, author = {{Auroux, Sébastien and Draxler, Martin and Morelli, Arianna and Mancuso, Vincenzo}}, booktitle = {{2015 European Conference on Networks and Communications (EuCNC)}}, isbn = {{9781467373593}}, publisher = {{IEEE}}, title = {{{Dynamic network reconfiguration in wireless DenseNets with the CROWD SDN architecture}}}, doi = {{10.1109/eucnc.2015.7194057}}, year = {{2015}}, } @article{16372, author = {{Klingler, Florian and Dressler, Falko and Cao, Jiannong and Sommer, Christoph}}, issn = {{1570-8705}}, journal = {{Ad Hoc Networks}}, pages = {{258--269}}, title = {{{MCB – A multi-channel beaconing protocol}}}, doi = {{10.1016/j.adhoc.2015.08.002}}, year = {{2015}}, } @article{16391, author = {{Degener, Bastian and Kempkes, Barbara and Kling, Peter and Meyer auf der Heide, Friedhelm}}, issn = {{2329-4949}}, journal = {{ACM Transactions on Parallel Computing}}, pages = {{1--18}}, title = {{{Linear and Competitive Strategies for Continuous Robot Formation Problems}}}, doi = {{10.1145/2742341}}, year = {{2015}}, } @unpublished{16397, abstract = {{In the gathering problem, n autonomous robots have to meet on a single point. We consider the gathering of a closed chain of point-shaped, anonymous robots on a grid. The robots only have local knowledge about a constant number of neighboring robots along the chain in both directions. Actions are performed in the fully synchronous time model FSYNC. Every robot has a limited memory that may contain one timestamp of the global clock, also visible to its direct neighbors. In this synchronous time model, there is no limited view gathering algorithm known to perform better than in quadratic runtime. The configurations that show the quadratic lower bound are closed chains. In this paper, we present the first sub-quadratic---in fact linear time---gathering algorithm for closed chains on a grid.}}, author = {{Abshoff, Sebastian and Andreas Cord-Landwehr, Andreas and Jung, Daniel and Meyer auf der Heide, Friedhelm}}, booktitle = {{ArXiv: 1501.04877}}, title = {{{Towards Gathering Robots with Limited View in Linear Time: The Closed Chain Case}}}, year = {{2015}}, } @misc{13866, author = {{Olfert, Sergei and Henning, Bernd}}, title = {{{Analyse integral erfasster rotationssymmetrischer Schallwechseldruckverteilungen in Schlierenabbildungen}}}, year = {{2015}}, } @misc{13867, author = {{Kulshreshtha, Kshitij and Jurgelucks, Benjamin and Bause, Fabian and Rautenberg, Jens and Unverzagt, Carsten}}, title = {{{On the optimal configuration of triple-ring-electrodes on piezoceramic transducers towards increased parameter sensitivity of impedance}}}, year = {{2015}}, } @inbook{13877, author = {{Olfert, Sergei and Henning, Bernd}}, booktitle = {{XXIX Messtechnisches Symposium}}, isbn = {{9783110408539}}, title = {{{Analyse integral erfasster Schallwechseldruckverteilungen in Schlierenabbildungen}}}, doi = {{10.1515/9783110408539-010}}, year = {{2015}}, } @misc{13891, author = {{Jurgelucks, Benjamin and Kulshreshtha, Kshitij and Bause, Fabian and Rautenberg, Jens and Unverzagt, Carsten}}, title = {{{On the optimal configuration of triple-ring-electrodes on piezoceramic transducers towards increased parameter sensitivity of impedance}}}, year = {{2015}}, } @inproceedings{13892, abstract = {{Several ultrasonic approaches for material determination are formulated in terms of an (nonlinear) inverse problem, e.g. immersion technique (Castaings et al. (2000)) or plate-waveguide techniques (Marzani et al. (2012)). In this contribution we focus on cylindrical waveguides for ultrasonic material determination and especially on the sensitivity of recorded transmission signals to the material properties. We utilize composite scaled sensitivities to determine the information content that can be achieved by the setup to certain parameters and discuss the limitations of the approach.}}, author = {{Bause, Fabian and Gravenkamp, Hauke and Rautenberg, Jens and Henning, Bernd}}, keywords = {{Sensitivity inverse problem ultrasonic material determination}}, pages = {{204--207}}, title = {{{Model based sensitivity analysis in the determination of viscoelastic material properties using transmission measurements through circular waveguides}}}, year = {{2015}}, } @article{13893, abstract = {{In this contribution, we present an efficient approach for the transient and time-causal modeling of guided waves in viscoelastic cylindrical waveguides in the context of ultrasonic material characterization. We use the scaled boundary finite element method (SBFEM) for efficient computation of the phase velocity dispersion. Regarding the viscoelastic behavior of the materials under consideration, we propose a decomposition approach that considers the real-valued frequency dependence of the (visco-)elastic moduli and, separately, of their attenuation. The modal expansion approach is utilized to take the transmitting and receiving transducers into account and to propagate the excited waveguide modes through a waveguide of finite length. The effectiveness of the proposed simulation model is shown by comparison with a standard transient FEM simulation as well as simulation results based on the exact solution of the complex-valued viscoelastic guided wave problem. Two material models are discussed, namely the fractional Zener model and the anti-Zener model; we re-interpret the latter in terms of the Rayleigh damping model. Measurements are taken on a polypropylene sample and the proposed transient simulation model is used for inverse material characterization. The extracted material properties may then be used in computer-aided design of ultrasonic systems.}}, author = {{Bause, Fabian and Gravenkamp, Hauke and Rautenberg, Jens and Henning, Bernd}}, issn = {{0957-0233}}, journal = {{Measurement Science and Technology}}, keywords = {{viscoelasticity, ultrasonics, guided waves, inverse problem, scaled boundary finite element method}}, number = {{095602 (17pp)}}, title = {{{Transient modeling of ultrasonic guided waves in circular viscoelastic waveguides for inverse material characterization}}}, doi = {{10.1088/0957-0233/26/9/095602}}, volume = {{26}}, year = {{2015}}, } @article{13894, author = {{Bause, Fabian and Gravenkamp, Hauke and Rautenberg, Jens and Henning, Bernd}}, issn = {{0957-0233}}, journal = {{Measurement Science and Technology}}, title = {{{Transient modeling of ultrasonic guided waves in circular viscoelastic waveguides for inverse material characterization}}}, doi = {{10.1088/0957-0233/26/9/095602}}, year = {{2015}}, } @article{13895, author = {{Kulshreshtha, Kshitij and Jurgelucks, Benjamin and Bause, Fabian and Rautenberg, Jens and Unverzagt, Carsten}}, issn = {{2194-878X}}, journal = {{Journal of Sensors and Sensor Systems}}, pages = {{217--227}}, title = {{{Increasing the sensitivity of electrical impedance to piezoelectric material parameters with non-uniform electrical excitation.}}}, volume = {{4}}, year = {{2015}}, } @inproceedings{13897, abstract = {{This contribution will give a short introduction to the most important mechanic and acoustic parameters that are necessary to model and simulate frequency dependent sound propagation (dispersion) in isotropic but linear viscoelastic materials. Furthermore, several experimental techniques to measure these parameters will be discussed, like the dynamic-mechanical analysis and transient ultrasonic techniques. Finally it will be shown how to use the determined material parameters for the simulation of transient signals in a highly attenuative acoustic waveguide.}}, author = {{Rautenberg, Jens and Bause, Fabian and Henning, Bernd}}, booktitle = {{AMA~Conferences 2015}}, editor = {{Service GmbH}, AMA}}, pages = {{130--135}}, title = {{{Utilizing guided acoustic waves to measure dispersive material properties of polymers}}}, year = {{2015}}, } @article{13964, author = {{Beutner, Marc and Pechuel, Rasmus and Teine, Matthias}}, journal = {{Kölner Zeitschrift für Wirtschaft und Pädagogik}}, pages = {{81 -- 128}}, title = {{{Didaktische und organisatorische Strukturierungen von Micro-Learning – Konzeption und Umsetzungsbeispiele aus den OPALESCE Learning Units}}}, year = {{2015}}, } @article{13056, author = {{Huang, Zhengfeng and Liang, Huaguo and Hellebrand, Sybille}}, journal = {{Journal of Electronic Testing - Theory and Applications (JETTA)}}, number = {{4}}, pages = {{349--359}}, publisher = {{Springer}}, title = {{{A High Performance SEU Tolerant Latch}}}, volume = {{31}}, year = {{2015}}, } @misc{13077, author = {{Hellebrand, Sybille and Indlekofer, Thomas and Kampmann, Matthias and Kochte, Michael and Liu, Chang and Wunderlich, Hans-Joachim}}, keywords = {{Workshop}}, title = {{{Effiziente Auswahl von Testfrequenzen für den Test kleiner Verzögerungsfehler}}}, year = {{2015}}, } @inproceedings{13153, author = {{Graf, Tobias and Platzner, Marco}}, booktitle = {{Advances in Computer Games: 14th International Conference, ACG 2015, Leiden, The Netherlands, July 1-3, 2015, Revised Selected Papers}}, pages = {{1--11}}, publisher = {{Springer International Publishing}}, title = {{{Adaptive Playouts in Monte-Carlo Tree Search with Policy-Gradient Reinforcement Learning}}}, doi = {{10.1007/978-3-319-27992-3_1}}, year = {{2015}}, } @article{13165, author = {{Sonnenrein, G. and Baumhögger, Elmar and Elsner, A. and Fieback, K. and Morbach, A. and Paul, A. and Vrabec, J.}}, issn = {{0140-7007}}, journal = {{International Journal of Refrigeration}}, pages = {{166--173}}, title = {{{Copolymer-bound phase change materials for household refrigerating appliances: experimental investigation of power consumption, temperature distribution and demand side management potential}}}, doi = {{10.1016/j.ijrefrig.2015.06.030}}, year = {{2015}}, }