@article{13520, abstract = {{Atomistic simulations in the framework of the density functional theory have been used to model morphologic and vibrational properties of lithium niobate–lithium tantalate mixed crystals as a function of the [Nb]/[Ta] ratio. Structural parameters such as the crystal volume and the lattice parameters a and c vary roughly linearly from LiTaO3 to LiNbO3, showing only minor deviations from the Vegard behavior. Our ab initio calculations demonstrate that the TO1, TO2 and TO4 vibrational modes become harder with increasing Nb concentration. TO3 becomes softer with increasing Nb content, instead. Furthermore, the investigated zone center A1 -TO phonon modes are characterized by a pronounced stoichiometry dependence. Frequency shifts as large as 30 cm−1 are expected as the [Nb]/[Ta] ratio grows from 0 to 1. Therefore, spectroscopic techniques sensitive to the A1 modes (such as Raman spectroscopy), can be employed for a direct and non-destructive determination of the crystal composition.}}, author = {{Sanna, Simone and Riefer, A. and Neufeld, Sergej and Schmidt, Wolf Gero and Berth, Gerhard and Rüsing, Michael and Widhalm, A. and Zrenner, Artur}}, issn = {{0015-0193}}, journal = {{Ferroelectrics}}, keywords = {{Ferroelectrics, vibrational properties, LiNbO3, LiTaO3, mixed crystals}}, number = {{1}}, pages = {{63--68}}, title = {{{Vibrational Fingerprints of LiNbO3-LiTaO3Mixed Crystals}}}, doi = {{10.1080/00150193.2013.821893}}, volume = {{447}}, year = {{2013}}, } @article{13524, author = {{Landmann, M. and Rauls, E. and Schmidt, Wolf Gero and Röppischer, Marcus and Cobet, Christoph and Esser, Norbert and Schupp, Thorsten and As, Donat J. and Feneberg, Martin and Goldhahn, Rüdiger}}, issn = {{1098-0121}}, journal = {{Physical Review B}}, number = {{19}}, title = {{{Transition energies and direct-indirect band gap crossing in zinc-blende AlxGa1−xN}}}, doi = {{10.1103/physrevb.87.195210}}, volume = {{87}}, year = {{2013}}, } @book{48022, editor = {{Jacke, Christoph and Goer, Charis and Greif, Stefan}}, isbn = {{978-3-15-019035-7}}, pages = {{294}}, publisher = {{Reclam}}, title = {{{Texte zur Theorie des Pop}}}, year = {{2013}}, } @book{48023, editor = {{Jacke, Christoph and Mania, Thomas and Eismann, Sonja and Bloss, Monika and Binas-Preisendörfer, Susanne}}, pages = {{289}}, publisher = {{Telos}}, title = {{{ShePOP - Frauen. Macht. Musik!}}}, year = {{2013}}, } @inproceedings{11832, abstract = {{In this paper we propose an approach to retrieve the absolute geometry of an acoustic sensor network, consisting of spatially distributed microphone arrays, from reverberant speech input. The calibration relies on direction of arrival measurements of the individual arrays. The proposed calibration algorithm is derived from a maximum-likelihood approach employing circular statistics. Since a sensor node consists of a microphone array with known intra-array geometry, we are able to obtain an absolute geometry estimate, including angles and distances. Simulation results demonstrate the effectiveness of the approach.}}, author = {{Jacob, Florian and Schmalenstroeer, Joerg and Haeb-Umbach, Reinhold}}, booktitle = {{38th International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2013)}}, issn = {{1520-6149}}, keywords = {{Geometry calibration, microphone arrays, position self-calibration}}, pages = {{116--120}}, title = {{{DoA-Based Microphone Array Position Self-Calibration Using Circular Statistic}}}, doi = {{10.1109/ICASSP.2013.6637620}}, year = {{2013}}, } @inproceedings{11891, abstract = {{In this paper we present a combined hardware/software approach for synchronizing the sampling clocks of an acoustic sensor network. A first clock frequency offset estimate is obtained by a time stamp exchange protocol with a low data rate and computational requirements. The estimate is then postprocessed by a Kalman filter which exploits the specific properties of the statistics of the frequency offset estimation error. In long term experiments the deviation between the sampling oscillators of two sensor nodes never exceeded half a sample with a wired and with a wireless link between the nodes. The achieved precision enables the estimation of time difference of arrival values across different hardware devices without sharing a common sampling hardware.}}, author = {{Schmalenstroeer, Joerg and Haeb-Umbach, Reinhold}}, booktitle = {{21th European Signal Processing Conference (EUSIPCO 2013)}}, keywords = {{synchronization, acoustic sensor network}}, title = {{{Sampling Rate Synchronisation in Acoustic Sensor Networks with a Pre-Trained Clock Skew Error Model}}}, year = {{2013}}, } @article{48711, author = {{Krause, Daniel and Kobow, Sven}}, issn = {{0167-9457}}, journal = {{Human Movement Science}}, keywords = {{Experimental and Cognitive Psychology, Orthopedics and Sports Medicine, General Medicine, Biophysics}}, number = {{2}}, pages = {{314--327}}, publisher = {{Elsevier BV}}, title = {{{Effects of model orientation on the visuomotor imitation of arm movements: The role of mental rotation}}}, doi = {{10.1016/j.humov.2012.10.001}}, volume = {{32}}, year = {{2013}}, } @book{48721, author = {{Olivier, Norbert and Rockmann, Ulrike and Krause, Daniel}}, publisher = {{Hofmann}}, title = {{{Grundlagen der Bewegungswissenschaft und -lehre}}}, year = {{2013}}, } @misc{48795, author = {{Luft, Sebastian}}, title = {{{“The Space of Culture. Outlines of a Transcendental Philosophy of Culture Following the Marburg School of Neo-Kantianism (Cohen, Natorp, and Cassirer)}}}, year = {{2013}}, } @inbook{24045, author = {{Pottebaum, Jens and Marterer, Robin and Koch, Rainer}}, booktitle = {{Entscheiden in kritischen Situationen}}, editor = {{Heimann, Rudi and Strohschneider, Stefan and Schaub, Harald}}, isbn = {{978-3-86676-274-9}}, pages = {{207--224}}, publisher = {{Verlag für Polizeiwissenschaften}}, title = {{{IT-gestützte Ausbildung von Feuerwehr - Führungskräften und -stäben: Zwischen virtueller Lage und realer Erfahrung}}}, year = {{2013}}, } @misc{48799, author = {{Hartung, Olaf}}, booktitle = {{Das Historisch-Politische Buch}}, issn = {{0018-2605}}, publisher = {{Duncker & Humblot; Ranke-Gesellschaft – Vereinigung für Geschichte im öffentlichen Leben e.V. von Jürgen Elvert}}, title = {{{Rezension von: Jens Dreßler: Vom Sinn des Lernens an der Geschichte. Historische Bildung in schultheoretischer Sicht, Stuttgart: Kohlhammer, 2012}}}, volume = {{61}}, year = {{2013}}, } @book{49067, editor = {{Schulze, Max and Menne, Katrin}}, title = {{{schwarzweiss-vier}}}, volume = {{4}}, year = {{2013}}, } @inbook{4944, author = {{Schneider, Martin}}, booktitle = {{Macht und Employment Relations }}, editor = {{Heiko Hoßfeld, Renate Ortlieb}}, title = {{{"Gung Ho": Nationale Kultur und Schlanke Produktion in Ron Howards Spielfilm. }}}, year = {{2013}}, } @inbook{49221, author = {{Gretz, Daniela}}, booktitle = {{Zeitschriftenliteratur/Fortsetzungsliteratur}}, editor = {{Kaminski, Nicola and Ramtke, Nora and Zelle, Carsten}}, pages = {{187‒204}}, publisher = {{Wehrhahn}}, title = {{{Theodor Fontanes ›Frauenromane‹ »Cécile« und »Effi Briest« im historischen Publikationskontext}}}, year = {{2013}}, } @article{49335, author = {{Gretz, Daniela}}, journal = {{Themen Thesen Texte. Magazin des Exzellenzclusters ›Kulturelle Grundlagen von Integration‹}}, pages = {{35−37}}, title = {{{»Weißer Fleck« und »dunkler Kontinent«. Afrika-Bilder seit dem 19. Jahrhundert}}}, year = {{2013}}, } @inbook{47721, author = {{Bartz, Christina}}, booktitle = {{Das Medium meiner Träume. Hartmut Winkler zum 60. Geburtstag}}, editor = {{Adelmann, Ralf and Bergermann, Ulrike}}, pages = {{175--182}}, publisher = {{Verbrecher Verlag}}, title = {{{Professor Bienlein erfindet das Medium seiner Träume}}}, year = {{2013}}, } @inbook{47841, author = {{Fourné, Marcel and Petersen, Dominique and Pohlmann, Norbert}}, booktitle = {{INFORMATIK 2013 – Informatik angepasst an Mensch, Organisation und Umwelt}}, isbn = {{978-3-88579-614-5}}, pages = {{2213–2224}}, publisher = {{Gesellschaft für Informatik e.V.}}, title = {{{Attack-test and verification systems, steps towards verifiable anomaly detection}}}, year = {{2013}}, } @article{47940, abstract = {{Copper oxide and cobalt oxide (CuO, Co3O4) nanocrystals (NCs) have been successfully prepared in a short time using microwave irradiation without any postannealing treatment. Both kinds of nanocrystals (NCs) have been prepared using copper nitrate and cobalt nitrate as the starting materials and distilled water as the solvent. The resulted powders of nanocrystals (NCs) were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), and atomic force microscopy (AFM) measurements. The obtained results confirm the presence of the both of oxides nanopowders produced during chemical precipitation using microwave irradiation. A strong emission under UV excitation is obtained from the prepared CuO and Co3O4 nanoparticles. The results show that the nanoparticles have high dispersion and narrow size distribution. The line scans of atomic force microscopy (AFM) images of the nanocrystals (NCs) sprayed on GaAs substrates confirm the results of both X-ray diffraction and transmission electron microscopy. Furthermore, vibrational studies have been carried out using Raman spectroscopic technique. Specific Raman peaks have been observed in the CuO and Co3O4 nanostructures, and the full width at half maximum (FWHM) of the peaks indicates a small particle size of the nanocrystals.}}, author = {{Rashad, M. and Rüsing, Michael and Berth, Gerhard and Lischka, K. and Pawlis, A.}}, issn = {{1687-4129}}, journal = {{Journal of Nanomaterials}}, keywords = {{General Materials Science}}, pages = {{714853}}, publisher = {{Hindawi Limited}}, title = {{{CuO and Co3O4 Nanoparticles: Synthesis, Characterizations, and Raman Spectroscopy}}}, doi = {{10.1155/2013/714853}}, volume = {{2013}}, year = {{2013}}, } @inbook{46385, abstract = {{In many applications one is faced with the problem that multiple objectives have to be optimized at the same time. Since typically the solution set of such multi-objective optimization problems forms a manifold which cannot be computed analytically, one is in many cases interested in a suitable finite size approximation of this set. One widely used approach is to find a representative set that maximizes the dominated hypervolume that is defined by the images in objective space of these solutions and a given reference point. In this paper, we propose a new point-wise iterative search procedure, Hypervolume Directed Search (HVDS), that aims to increase the hypervolume of a given point in an archive for bi-objective unconstrained optimization problems. We present the HVDS both as a standalone algorithm and as a local searcher within a specialized evolutionary algorithm. Numerical results confirm the strength of the novel approach.}}, author = {{Sosa, Hernández V and Schütze, O and Rudolph, G and Trautmann, Heike}}, booktitle = {{EVOLVE — A Bridge between Probability, Set Oriented Numerics, and Evolutionary Computation IV}}, editor = {{Emmerich, M and Deutz, A and Schuetze, O and Bäck, T and Tantar, A and Moral, PD and Legrand, P and Bouvry, P and Coello, CA}}, isbn = {{978-3-319-01127-1}}, pages = {{189–205}}, publisher = {{Springer International Publishing}}, title = {{{The Directed Search Method for Pareto Front Approximations with Maximum Dominated Hypervolume}}}, doi = {{10.1007/978-3-319-01128-8_13}}, volume = {{227}}, year = {{2013}}, } @inbook{46386, abstract = {{The averaged Hausdorff distance Δ p is a performance indicator in multi-objective evolutionary optimization which simultaneously takes into account proximity to the true Pareto front and uniform spread of solutions. Recently, the multi-objective evolutionary algorithm Δ p -EMOA was introduced which successfully generates evenly spaced Pareto front approximations for bi-objective problems by integrating an external archiving strategy into the SMS-EMOA based on Δ p . In this work a conceptual generalization of the Δ p -EMOA for higher objective space dimensions is presented and experimentally compared to state-of-the art EMOA as well as specialized EMOA variants on three-dimensional optimization problems.}}, author = {{Trautmann, Heike and Rudolph, G and Dominguez-Medina, C and Schütze, O}}, booktitle = {{EVOLVE — A Bridge between Probability, Set Oriented Numerics, and Evolutionary Computation II}}, editor = {{Schütze, O and Coello, Coello CA and Tantar, A and Tantar, E and Bouvry, P and Del, Moral P and Legrand, P}}, isbn = {{978-3-642-31518-3}}, pages = {{89–105}}, publisher = {{Springer Berlin Heidelberg}}, title = {{{Finding Evenly Spaced Pareto Fronts for Three-Objective Optimization Problems}}}, doi = {{10.1007/978-3-642-31519-0_6}}, volume = {{175}}, year = {{2013}}, }