@inproceedings{10767, author = {{Ghribi, Ines and Ben Abdallah, Riadh and Khalgui, Mohamed and Platzner, Marco}}, booktitle = {{Proceedings of the 29th European Simulation and Modelling Conference (ESM)}}, title = {{{New Codesign Solutions for Modelling and Partitioning of Probabilistic Reconfigurable Embedded Software}}}, year = {{2015}}, } @inbook{12071, author = {{Sommer, Christoph and Härri, Jérôme and Hrizi, Fatma and Schünemann, Björn and Dressler, Falko}}, booktitle = {{Vehicular ad hoc Networks}}, isbn = {{9783319154961}}, title = {{{Simulation Tools and Techniques for Vehicular Communications and Applications}}}, doi = {{10.1007/978-3-319-15497-8_13}}, 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{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}}, } @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}}, } @inproceedings{24293, abstract = {{Parallel Sequence Spread Spectrum (PSSS) is a physical layer baseband technology wherein parallel data streams are transmitted simultaneously by spreading them using orthogonal codes. PSSS was selected for the wireless sensor network standard IEEE802.15.4-2006 to increase data rate and improve performance in fading channels for frequency bands below 1 GHz. Since then it has gained interest for both wireless and wired communication links.}}, author = {{Javed, Abdul Rehman and Scheytt, Christoph}}, booktitle = {{1st URSI Atlantic Radio Science Conference (URSI AT-RASC 2015)}}, title = {{{System Design and Simulation of a PSSS Based Mixed Signal Transceiver for a 20 Gbps Bandwidth Limited Communication Link}}}, doi = {{10.1109/URSI-AT-RASC.2015.7302987}}, year = {{2015}}, } @inproceedings{30582, author = {{Schulte, Christoph and Böcker, Joachim}}, booktitle = {{IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society}}, publisher = {{IEEE}}, title = {{{Co-simulation of an interior permanent magnet synchronous motor with segmented rotor structure}}}, doi = {{10.1109/iecon.2014.7048537}}, year = {{2015}}, } @inproceedings{30603, author = {{Paradkar, Milind and Böcker, Joachim}}, booktitle = {{2015 IEEE Energy Conversion Congress and Exposition (ECCE)}}, publisher = {{IEEE}}, title = {{{3D analytical model for estimation of eddy currentlosses in the magnets of IPM machine considering the reaction field of the induced eddy currents}}}, doi = {{10.1109/ecce.2015.7310061}}, year = {{2015}}, } @misc{32999, author = {{Öhlschläger, Claudia}}, booktitle = {{Das achtzehnte Jahrhundert 40.2, 2016}}, publisher = {{Wehrhahn, zahlreiche farbige Abb.}}, title = {{{Rezension zu: Nicola Kaminski; Volker Mergenthaler: Zuschauer im Eckfenster 1821/22 oder Selbstreflexion der Journalliteratur im Journal(text). Mit einem Faksimile des Zuschauers vom April/Mai 1822}}}, year = {{2015}}, } @article{35996, author = {{Schlegel-Matthies, Kirsten}}, journal = {{Ernährung im Fokus. Zeitschrift für Fach-, Lehr- und Beratungskräfte}}, number = {{9-10}}, pages = {{256 -- 261}}, title = {{{Fleisch in unserer Gesellschaft}}}, year = {{2015}}, } @misc{51269, abstract = {{Free networks are established and maintained by more and more people on a voluntary basis to be independent from commercial providers. This also enables an uncensored communication and leads to a network owned by a community. Freifunk is such a project and it is based on wireless mesh networks. All participants provide an own wifi router (node) for transferring data between different devices. The routing protocol used in the Freifunk network of Paderborn is called Better Approach To Mobile Ad-hoc Networking advanced (B.A.T.M.A.N. IV or Batman-adv). It uses so called Originator Messages (OGM) to announce the existence of a node and to measure the quality of different links in the network. The Freifunk network in Paderborn consists of about 800 nodes that periodically broadcast OGMs. This leads to a substantial base load of ∼25 GByte per month and node. Instead of performing modifications in the real network, I create a simulation model of the current network structure and implement version IV of the B.A.T.M.A.N. routing protocol. The model is validated by using data from the real network. Based on this model I propose and evaluate five different opportunities to improve the base load without impairing other functionality of the network. The simulation results show that a combination of two improvements can lead to a reduction up to 90 %.}}, author = {{Hardes, Tobias}}, title = {{{Performance Analysis and Simulation of a Freifunk Mesh Network in Paderborn using B.A.T.M.A.N Advanced}}}, year = {{2015}}, } @inbook{27393, author = {{Bigga, Regine}}, booktitle = {{Allgemeinbildung und Curriculumentwicklung. Herausforderungen an das Fach Wirtschaft-Arbeit-Technik}}, editor = {{Meier, Bernd and Banse, Gerhard}}, pages = {{101--119}}, publisher = {{Peter Lang Wissenschaftsverlag}}, title = {{{Consumer und Nutrition Literacy versus „Wirtschaft, Arbeit, Technik“ (WAT)?! }}}, year = {{2015}}, } @misc{37407, author = {{Bigga, Regine}}, booktitle = {{Haushalt in Bildung und Forschung}}, pages = {{128f}}, publisher = {{Verlag Barbara Budrich}}, title = {{{Was der Mensch essen darf}}}, volume = {{2}}, year = {{2015}}, } @article{24697, author = {{Schulze, Volker and Uhlmann, Eckart and Mahnken, Rolf and Menzel, Andreas and Biermann, Dirk and Zabel, Andreas and Bollig, Patrick and Ivanov, Ivan M. and Cheng, Chun and Holtermann, Raphael and Bartel, Thorsten}}, issn = {{0944-6524}}, journal = {{Production Engineering}}, pages = {{437--449}}, title = {{{Evaluation of different approaches for modeling phase transformations in machining simulation}}}, doi = {{10.1007/s11740-015-0618-7}}, year = {{2015}}, } @article{24650, author = {{Düsing, M. and Mahnken, Rolf}}, issn = {{0927-0256}}, journal = {{Computational Materials Science}}, pages = {{91--100}}, title = {{{Simulation of lower bainitic transformation with the phase-field method considering carbide formation}}}, doi = {{10.1016/j.commatsci.2015.08.043}}, year = {{2015}}, } @article{40224, author = {{Wagenknecht, Inga and Meier-Gräwe, Uta and Ziegenhain, Ute}}, journal = {{Interdisziplinäre Fachzeitschrift der DGfPl}}, number = {{1}}, pages = {{10--25}}, publisher = {{Vandenhoeck & Ruprecht }}, title = {{{Kosten und Nutzen Früher Hilfen – aktuelle Erkenntnisse und zukünftiger Forschungsbedarf}}}, volume = {{18}}, year = {{2015}}, } @inbook{40210, author = {{Wagenknecht, Inga and Meier-Gräwe, Uta}}, booktitle = {{Frühe Kindheit unter Optimierungsdruck}}, editor = {{Seifert-Karb, Inken}}, isbn = {{978-3-8379-2355-1}}, publisher = {{Psychosozial-Verlag}}, title = {{{Auf- und Ausbau Früher Hilfen in Zeiten knapper öffentlicher Kassen. Warum es sich lohnt, in Frühe Hilfen zu investieren.}}}, year = {{2015}}, } @article{34626, author = {{Gramelsberger, Gabriele and Alpsancar, Suzana}}, issn = {{1438-1680}}, journal = {{Sprache und Literatur}}, number = {{1-2}}, pages = {{52--84}}, publisher = {{Brill}}, title = {{{3D-Drucken als neuer technischer Weltbezug?}}}, doi = {{10.30965/25890859-0460102005}}, volume = {{46}}, year = {{2015}}, } @phdthesis{42665, author = {{Sikora, Sebastian Patrick}}, isbn = {{9783844034318}}, title = {{{Materialcharakterisierung und -modellierung zur Simulation von Klebverbindungen mit Polyurethanklebstoffen}}}, year = {{2015}}, } @article{13935, abstract = {{Recently, a new class of nonlinear systems was introduced, in which the self-trapping of fundamental and vortical localized modes in space of dimension D is supported by cubic self-repulsion with a strength growing as a function of the distance from the center, r, at any rate faster that rD. These systems support robust 2D and 3D modes which either do not exist or are unstable in other nonlinear systems. Here we demonstrate a possibility to create solitary vortices in this setting by applying a phase-imprinting torque to the ground state. Initially, a strong torque completely destroys the ground state. However, contrary to usual systems, where the destruction is irreversible, the present ones demonstrate a rapid restabilization and the creation of one or several shifted vortices orbiting the center. For the sake of comparison, we show analytically that, in the linear system with a 3D trapping potential, the action of a torque on the ground state is inefficient and creates only even-vorticity states with a small probability.}}, author = {{Driben, Rodislav and Meier, Torsten and Malomed, Boris A.}}, issn = {{2045-2322}}, journal = {{Scientific Reports}}, title = {{{Creation of vortices by torque in multidimensional media with inhomogeneous defocusing nonlinearity}}}, doi = {{10.1038/srep09420}}, volume = {{5}}, year = {{2015}}, }