@inproceedings{30600, author = {{Bolte, Sven and Speerschneider, Alexander and Fröhleke, Norbert and Böcker, Joachim}}, booktitle = {{2015 IEEE International Conference on Smart Energy Grid Engineering (SEGE)}}, publisher = {{IEEE}}, title = {{{A comparison of on-board chargers for electric vehicles with variable DC-link voltage}}}, doi = {{10.1109/sege.2015.7324598}}, year = {{2015}}, } @inproceedings{30593, author = {{Henkenius, Carsten and Fröhleke, Norbert and Böcker, Joachim and Figge, Heiko and Grote, Tobias}}, booktitle = {{2015 IEEE International Conference on Industrial Technology (ICIT)}}, publisher = {{IEEE}}, title = {{{DCM detection for on-line adaption of control parameters for totem-pole PFC rectifier}}}, doi = {{10.1109/icit.2015.7125400}}, year = {{2015}}, } @inproceedings{30599, author = {{Keuck, Lukas and Fröhleke, N. and Böcker, Joachim and Ziessler, A.}}, booktitle = {{2015 17th European Conference on Power Electronics and Applications (EPE'15 ECCE-Europe)}}, publisher = {{IEEE}}, title = {{{PFC-control for improved inductor utilization}}}, doi = {{10.1109/epe.2015.7309373}}, year = {{2015}}, } @inproceedings{30586, author = {{Vogt, T. and Keuck, L. and Fröhleke, N. and Böcker, Joachim and Kempen, S.}}, booktitle = {{2014 International Conference on Advances in Green Energy (ICAGE)}}, publisher = {{IEEE}}, title = {{{Analysis of industrial microgrid power curves based on the theory of stochastic variables for control system development and component sizing}}}, doi = {{10.1109/icage.2014.7050145}}, year = {{2015}}, } @inproceedings{30583, author = {{Hagemeyer, Marc and Solanki, Jitendra and Fröhleke, Norbert and Böcker, Joachim and Averberg, Andreas and Wallmeier, Peter}}, booktitle = {{IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society}}, publisher = {{IEEE}}, title = {{{Comparison of PWM AC chopper topologies}}}, doi = {{10.1109/iecon.2014.7048673}}, year = {{2015}}, } @inproceedings{30584, author = {{Leuer, Michael and Böcker, Joachim}}, booktitle = {{2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)}}, publisher = {{IEEE}}, title = {{{Voltage utilization in Model Predictive Control for IPMSM}}}, doi = {{10.1109/pedes.2014.7042062}}, year = {{2015}}, } @inproceedings{30585, author = {{Keuck, Lukas and Hemmelgarn, F. and Fröhleke, N. and Böcker, Joachim and Vohrmann, M. and Jungeblut, T. and Rückert, U.}}, booktitle = {{2014 International Conference on Advances in Green Energy (ICAGE)}}, publisher = {{IEEE}}, title = {{{Neuro control of a PFC rectifier for harmonic reduction at partial loads}}}, doi = {{10.1109/icage.2014.7050149}}, year = {{2015}}, } @phdthesis{30597, author = {{Peters, W.}}, isbn = {{ 978-3-8440-3653-4}}, title = {{{Wirkungsgradoptimale Regelung von permanenterregten Synchronmotoren in automobilen Traktionsanwendungen unter Berücksichtigung der magnetischen Sättigung}}}, year = {{2015}}, } @phdthesis{30596, author = {{Solanki, J.}}, title = {{{High Power Factor High-Current Variable-Voltage Rectifiers}}}, year = {{2015}}, } @misc{4360, abstract = {{Die Erfindung betrifft ein Verfahren zur Präparation einer Besetzungsinversion in einem Quantensystem (Q) mittels Mehrpulsanregung, wobei ein Quantensystem (Q) umfassend wenigstens einen Quantenpunkt mit zwei orthogonalen Zuständen (/X>, /Y>), insbesondere die mit zueinander orthogonalen Polarisationen (P1, P2) optisch anregbar sind, mit einem ersten Laserpuls (L1) beleuchtet wird, welcher zur resonanten Anregung des ersten (/Y>) der zwei Zustände (/X>, /Y>) eingestellt wird und zeitlich nachfolgend mit einem zweiten Laserpuls (L2) beleuchtet wird, der zur resonanten Anregung des zweiten (/X>) der zwei Zustände (/X>, /Y>) eingestellt wird.}}, author = {{Zrenner, Artur and Förstner, Jens and Mantei, Dirk}}, keywords = {{tet_topic_qd}}, title = {{{A process for the preparation of a population inversion in a quantum system using multi-pulse excitation}}}, year = {{2015}}, } @inproceedings{14876, author = {{Chen, Mei-Hua and Chen, Wei-Fan and Ku, Lun-Wei}}, booktitle = {{Proceedings of the sixth joint Foreign Language Education and Technology Conference (FLEAT VI)}}, title = {{{Technology Enhanced Emotion Expression Learning}}}, year = {{2015}}, } @article{29402, author = {{Flaßkamp, K. and Hage-Packhäuser, S. and Ober-Blöbaum, Sina}}, journal = {{Journal of Computational Dynamics}}, pages = {{25--50}}, title = {{{Symmetry exploiting control of hybrid mechanical systems}}}, volume = {{2(1)}}, year = {{2015}}, } @article{29403, author = {{Campos, C. M. and Ober-Blöbaum, Sina and Trélat, E.}}, journal = {{Discrete and Continuous Dynamical Systems}}, pages = {{4193--4223}}, title = {{{High order variational integrators in the optimal control of mechanical systems}}}, volume = {{35(9)}}, year = {{2015}}, } @article{31291, abstract = {{We consider a simple model of an open partially expanding map. Its trapped set ${\mathcal{K}}$ in phase space is a fractal set. We first show that there is a well-defined discrete spectrum of Ruelle resonances which describes the asymptotic of correlation functions for large time and which is parametrized by the Fourier component $\unicode[STIX]{x1D708}$ in the neutral direction of the dynamics. We introduce a specific hypothesis on the dynamics that we call ‘minimal captivity’. This hypothesis is stable under perturbations and means that the dynamics is univalued in a neighborhood of ${\mathcal{K}}$. Under this hypothesis we show the existence of an asymptotic spectral gap and a fractal Weyl law for the upper bound of density of Ruelle resonances in the semiclassical limit $\unicode[STIX]{x1D708}\rightarrow \infty$. Some numerical computations with the truncated Gauss map and Bowen–Series maps illustrate these results.}}, author = {{ARNOLDI, JEAN FRANCOIS and FAURE, FRÉDÉRIC and Weich, Tobias}}, issn = {{0143-3857}}, journal = {{Ergodic Theory and Dynamical Systems}}, keywords = {{Applied Mathematics, General Mathematics}}, number = {{1}}, pages = {{1--58}}, publisher = {{Cambridge University Press (CUP)}}, title = {{{Asymptotic spectral gap and Weyl law for Ruelle resonances of open partially expanding maps}}}, doi = {{10.1017/etds.2015.34}}, volume = {{37}}, year = {{2015}}, } @article{31293, author = {{Weich, Tobias}}, issn = {{0010-3616}}, journal = {{Communications in Mathematical Physics}}, keywords = {{Mathematical Physics, Statistical and Nonlinear Physics}}, number = {{2}}, pages = {{727--765}}, publisher = {{Springer Science and Business Media LLC}}, title = {{{Resonance Chains and Geometric Limits on Schottky Surfaces}}}, doi = {{10.1007/s00220-015-2359-z}}, volume = {{337}}, year = {{2015}}, } @inproceedings{33012, author = {{Vogt, Thorsten and Fröhleke, Norbert and Böcker, Joachim and Kempen, Stefan}}, booktitle = {{German-Korean Symposium on Power Electronics}}, location = {{Seoul, Korea}}, title = {{{Multi-Objective Storage Operating Strategy for Industrial Microgrids}}}, year = {{2015}}, } @inproceedings{33030, author = {{Vogt, T. and Fröhleke, N. and Böcker, Joachim and Kempen, S.}}, location = {{Kassel}}, title = {{{Mehrziel-Speicherbetriebsstrategie für industrielle Microgrids}}}, year = {{2015}}, } @article{33359, abstract = {{We consider Gibbs distributions on permutations of a locally finite infinite set X⊂R, where a permutation σ of X is assigned (formal) energy ∑x∈XV(σ(x)−x). This is motivated by Feynman’s path representation of the quantum Bose gas; the choice X:=Z and V(x):=αx2 is of principal interest. Under suitable regularity conditions on the set X and the potential V, we establish existence and a full classification of the infinite-volume Gibbs measures for this problem, including a result on the number of infinite cycles of typical permutations. Unlike earlier results, our conclusions are not limited to small densities and/or high temperatures. }}, author = {{Richthammer, Thomas and Biskup, Marek}}, journal = {{Communications in Mathematical Physics}}, number = {{2}}, pages = {{898--929}}, publisher = {{Springer Science+Business Media}}, title = {{{Gibbs measures on permutations over one-dimensional discrete point sets}}}, doi = {{https://doi.org/10.48550/arXiv.1310.0248}}, volume = {{25}}, year = {{2015}}, } @article{33358, abstract = {{We study the workload processes of two M/G/1 queueing systems with restricted capacity: in Model 1 any service requirement that would exceed a certain capacity threshold is truncated; in Model 2 new arrivals do not enter the system if they have to wait more than a fixed threshold time in line. For Model 1 we obtain several results concerning the rate of convergence to equilibrium. In particular, we derive uniform bounds for geometric ergodicity with respect to certain subclasses. For Model 2 geometric ergodicity follows from the finiteness of the moment-generating function of the service time distribution. We derive bounds for the convergence rates in special cases. The proofs use the coupling method.}}, author = {{Kolb, Martin and Stadje, Wolfgang and Wübker, Achim}}, journal = {{Stochastic Models}}, number = {{1}}, pages = {{121--135}}, publisher = {{INFORMS}}, title = {{{The rate of convergence to stationarity for M/G/1 models with admission controls via coupling}}}, doi = {{http://dx.doi.org/10.1080/15326349.2015.1090322}}, volume = {{32}}, year = {{2015}}, } @article{33360, abstract = {{We prove a local limit theorem for the area of the positive excursion of random walks with zero mean and finite variance. Our main result complements previous work of Caravenna and Chaumont; Sohier, as well as Kim and Pittel.}}, author = {{Kolb, Martin and Denisov, Denis and Wachtel, Vitali}}, journal = {{Journal of the London Mathematical Society}}, number = {{2}}, pages = {{495--513}}, publisher = {{London Mathematical Society}}, title = {{{Local asymptotics for the area of random walk excursions}}}, volume = {{91}}, year = {{2015}}, }