@inproceedings{39777, author = {{Hassheider, Thomas and Benning, Stephan A. and Lauhof, Marcus W. and Oesterhaus, Reinhold and Alibert-Fouet, Sonia and Bock, Harald and Goodby, John W. and Watson, Mark D. and Muellen, Klaus and Kitzerow, Heinz-Siegfried}}, booktitle = {{SPIE Proceedings}}, editor = {{Chien, Liang-Chy}}, issn = {{0277-786X}}, publisher = {{SPIE}}, title = {{{Electroluminescence and photovoltaic effects using columnar mesogenic compounds}}}, doi = {{10.1117/12.473864}}, year = {{2003}}, } @article{28783, author = {{Mahnken, Rolf}}, issn = {{0020-7683}}, journal = {{International Journal of Solids and Structures}}, pages = {{6189--6209}}, title = {{{Creep simulation of asymmetric effects by use of stress mode dependent weighting functions}}}, doi = {{10.1016/s0020-7683(03)00388-3}}, year = {{2003}}, } @inbook{39956, author = {{Rösler, Margit}}, booktitle = {{Lecture Notes in Mathematics}}, isbn = {{9783540403753}}, issn = {{0075-8434}}, pages = {{93–135}}, publisher = {{Springer Berlin Heidelberg}}, title = {{{Dunkl Operators: Theory and Applications}}}, doi = {{10.1007/3-540-44945-0_3}}, year = {{2003}}, } @inproceedings{40903, abstract = {{Non-stationary complex random signals are in general improper (not circularly symmetric), which means that their complementary covariance is non-zero. Since the Karhunen-Loeve expansion in its known form is only valid for proper processes, we derive the improper version of this expansion. It produces two sets of eigenvalues and an improper internal description. We use the Karhunen-Loeve expansion to solve the problem of detecting non-stationary improper complex random signals in additive white Gaussian noise. Using the deflection criterion we compare the performance of conventional processing, which ignores complementary covariances, with processing that takes these into account. The performance gain can be as great as a factor of 2.}}, author = {{Schreier, Peter J. and Scharf, Louis L.}}, booktitle = {{Proc.\ IEEE Int.\ Conf.\ Acoustics, Speech and Signal Process.}}, pages = {{717–720}}, title = {{{The Karhunen-Loève expansion of improper complex random signals with applications in detection}}}, doi = {{10.1109/ICASSP.2003.1201782}}, volume = {{6}}, year = {{2003}}, } @inproceedings{40900, abstract = {{In this paper we describe a beamforming algorithm based on widely-linear rather than linear data models. Initially, we develop this beamformer by generalizing the Capon (MVDR) optimization problem. That is, if the objective is to minimize output power while maintaining a specified directional gain, then we show that the output power of the widely-linear beamformer is less than or equal to the output power of the Capon (MVDR) beamformer. This result is valid regardless of the “true” distribution of the data. We also derive the widely-linear beamformer by considering beamforming to be an estimation problem. Linear models assume that the composite covariance matrix formed from the real and imaginary parts of the array-snapshot has a particular structure. This structure is often summarized by stating that the covariance formed from the array snapshot and its transpose (not Hermitian transpose) is zero. We could also call these data “proper” Gaussian vectors. The beamformers in this paper are appropriate for situations in which these implicit assumptions are violated.}}, author = {{McWhorter, Todd and Schreier, Peter J.}}, booktitle = {{Proc. 37th\ Asilomar Conf.\ Signals Syst.\ Computers}}, pages = {{753–759}}, title = {{{Widely-linear beamforming}}}, doi = {{10.1109/ACSSC.2003.1292015}}, volume = {{1}}, year = {{2003}}, } @inproceedings{40901, abstract = {{Historically, transform coding of noisy sources has been performed by first estimating the message and then quantizing this estimate. We show that it is also optimum to first transform the noisy observations into canonical coordinates, quantize, apply a Wiener filter in this coordinate system, and then transform the result back to the original coordinates. Canonical coordinates are uncorrelated, and quantizing and Wiener filtering are applied to each component independently. Optimality of this approach can be proved assuming additive white quantization noise. Half canonical coordinates minimize the mean-squared error by minimizing the trace of the error covariance matrix and full canonical coordinates maximize information rate by minimizing the determinant of the error covariance matrix.}}, author = {{Schreier, Peter J. and Scharf, Louis L. and Hu, Tianjian and Voran, Stephen D.}}, booktitle = {{Proc.\ IEEE Works.\ Statistical Signal Proces.}}, pages = {{234–237}}, title = {{{Canonical coordinates are the right coordinate system for transform coding of noisy sources}}}, doi = {{10.1109/SSP.2003.1289387}}, year = {{2003}}, } @inproceedings{40902, abstract = {{Recently, a number of papers have been published that show significant performance gains can be obtained by accounting for the fact that communication signals can be improper. In this paper, we derive a general result comparing the performance of conventional processing, which ignores the improper nature of signals, with processing that takes it into account. In particular, for an estimation and a detection problem, we find that the performance gain, as measured by mean-squared error and deflection, respectively, can be as large as a factor of 2, but no larger. In a communications example, we show how this finding generalizes the result that coherent processing enjoys a 3 dB gain over non-coherent processing.}}, author = {{Schreier, Peter J. and Scharf, Louis L. and Mullis, Clifford T.}}, booktitle = {{Proc.\ IEEE Works.\ Statistical Signal Proces.}}, pages = {{114–117}}, title = {{{A unified approach to performance comparisons between linear and widely linear processing}}}, doi = {{10.1109/SSP.2003.1289353}}, year = {{2003}}, } @article{40899, abstract = {{We challenge the perception that we live in a “proper world”, where complex random signals can always be assumed to be proper (also called circularly symmetric). Rather, we stress the fact that the analytic signal constructed from a nonstationary real signal is, in general, improper, which means that its complementary correlation function is nonzero. We explore the consequences of this finding in the context of stochastic time-frequency analysis in Cohen’s class. There, the analytic signal plays a prominent role because it reduces interference terms. However, the usual time-frequency representation (TFR) based on the analytic signal gives only an incomplete signal description. It must be augmented by a complementary TFR whose properties we develop in detail. We show why it is still advantageous to use the pair of standard and complementary TFRs of the analytic signal rather than the TFR of the corresponding real signal.}}, author = {{Schreier, Peter J. and Scharf, Louis L.}}, journal = {{{IEEE} {T}rans.\ {S}ignal\ {P}rocess.}}, number = {{12}}, pages = {{3071–3079}}, title = {{{Stochastic time-frequency analysis using the analytic signal: why the complementary distribution matters}}}, doi = {{10.1109/TSP.2003.818911}}, volume = {{51}}, year = {{2003}}, } @article{14967, author = {{Sureth-Sloane, Caren}}, journal = {{Zeitschrift für Betriebswirtschaft}}, number = {{8}}, pages = {{793--824}}, title = {{{Die Besteuerung von Beteiligungsveräußerungen und Rechtsformneutralität}}}, volume = {{73}}, year = {{2003}}, } @inbook{17297, author = {{Rohlfing, Katharina}}, booktitle = {{Spracherwerb und Konzeptualisierung}}, editor = {{Haberzettl, Stefanie and Wegener, Heide}}, isbn = {{3-631-39265-6}}, pages = {{35--48}}, publisher = {{Peter Lang}}, title = {{{Situierte Semantik. Die Rolle der Sprache und nicht-verbaler Strategien beim Erwerb räumlicher Relationen}}}, year = {{2003}}, } @article{17298, author = {{Rohlfing, Katharina and Rehm, Matthias and Goecke, Karl Ulrich}}, issn = {{1567-7095}}, journal = {{Journal of Cognition and Culture}}, number = {{2}}, pages = {{132--157}}, publisher = {{Brill}}, title = {{{Situatedness: The interplay between context(s) and situation}}}, volume = {{3}}, year = {{2003}}, } @article{39957, abstract = {{It is an open conjecture that generalized Bessel functions associated with root systems have a positive product formula for non-negative multiplicity parameters of the associated Dunkl operators. In this paper, a partial result towards this conjecture is proven, namely a positive radial product formula for the non-symmetric counterpart of the generalized Bessel function, the Dunkl kernel. Radial hereby means that one of the factors in the product formula is replaced by its mean over a sphere. The key to this product formula is a positivity result for the Dunkl-type spherical mean operator. It can also be interpreted in the sense that the Dunkl-type generalized translation of radial functions is positivity-preserving. As an application, we construct Dunkl-type homogeneous Markov processes associated with radial probability distributions.}}, author = {{Rösler, Margit}}, journal = {{Transactions of the American Mathematical Society}}, number = {{6}}, pages = {{2413–2438}}, publisher = {{American Mathematical Society (AMS)}}, title = {{{A positive radial product formula for the Dunkl kernel}}}, doi = {{10.48550/ARXIV.MATH/0210137}}, volume = {{355}}, year = {{2003}}, } @inbook{40539, author = {{Grotjahn, Rebecca}}, booktitle = {{Musik. Frau. Sprache. Interdisziplinäre Frauen- und Genderforschung an der Hochschule für Musik und Theater Hannover}}, editor = {{Beyer, Kathrin and Kreutziger-Herr, Annette }}, isbn = {{978-3-8255-0403-8 }}, pages = {{277–294}}, publisher = {{Centaurus}}, title = {{{Episode aus dem Leben einer Künstlerin – Harriet Smithson, Hector Berlioz und die Symphonie fantastique}}}, volume = {{5}}, year = {{2003}}, } @inbook{40536, author = {{Grotjahn, Rebecca}}, booktitle = {{Rheinische Sängerinnen des 20. Jahrhunderts. Eine Dokumentation in Wort und Ton}}, editor = {{Synofzik, Thomas and Rode-Breymann, Susanne }}, isbn = {{978-3-87537-303-5}}, pages = {{25–33}}, publisher = {{Merseburger}}, title = {{{Frauenberuf Sängerin. Ein Thema musikwissenschaftlicher Frauen- und Geschlechterforschung}}}, volume = {{164}}, year = {{2003}}, } @inbook{40534, author = {{Grotjahn, Rebecca}}, booktitle = {{Le Musicien et ses voyages. Pratiques, réseaux et représentations}}, editor = {{Meyer, Christian }}, isbn = {{9783830503828}}, pages = {{253–281}}, publisher = {{Berliner Wissenschafts-Verlag}}, title = {{{Die Entdeckung der Terra incognita – Benjamin Bilse und sein reisendes Orchester}}}, year = {{2003}}, } @article{40537, author = {{Grotjahn, Rebecca}}, journal = {{Neues Leben. Mitteilungsblatt der Deutschen Johann-Strauss-Gesellschaft e. V.}}, pages = {{34–40}}, title = {{{‚An der Spitze der musikalischen Bewegung‘ – Die Reisen der Bilse’schen Kapelle}}}, volume = {{30}}, year = {{2003}}, } @inbook{40540, author = {{Grotjahn, Rebecca}}, booktitle = {{Willi Forst. Ein Filmstil aus Wien}}, editor = {{Loacker, Armin }}, isbn = {{9783901932243}}, pages = {{165–187}}, publisher = {{Filmarchiv Austria}}, title = {{{‚Ein Lied wie dieses muss gebracht werden, ausgestattet – wie ein Theaterstück‘. Willi Forst und die Inszenierung des Singens}}}, year = {{2003}}, } @article{40904, abstract = {{We present a comprehensive treatment of the second-order theory of complex random vectors and wide-sense stationary (WSS) signals. The main focus is on the improper case, in which the complementary covariance does not vanish. Accounting for the information present in the complementary covariance requires the use of widely linear transformations. Based on these, we present the eigenanalysis of complex vectors and apply it to the problem of rank reduction through principal components. We also investigate joint properties of two complex vectors by introducing canonical correlations, which paves the way for a discussion of the Wiener filter and its rank-reduced version. We link the concepts of propriety and joint propriety to eigenanalysis and canonical correlation analysis, respectively. Our treatment is extended to WSS signals. In particular, we give a result on the asymptotic distribution of eigenvalues and examine the connection between WSS, proper, and analytic signals.}}, author = {{Schreier, Peter J. and Scharf, Louis L.}}, journal = {{{IEEE} {T}rans.\ {S}ignal\ {P}rocess.}}, number = {{3}}, pages = {{714–725}}, title = {{{Second-order analysis of improper complex random vectors and processes}}}, doi = {{10.1109/TSP.2002.808085}}, volume = {{51}}, year = {{2003}}, } @article{41300, author = {{Feth, Martin P. and Bolm, Carsten and Hildebrand, Jens P. and Köhler, Manuela and Beckmann, Oliver and Bauer, Matthias and Ramamonjisoa, Rivo and Bertagnolli, Helmut}}, issn = {{0947-6539}}, journal = {{Chemistry - A European Journal}}, keywords = {{General Chemistry, Catalysis, Organic Chemistry}}, number = {{6}}, pages = {{1348--1359}}, publisher = {{Wiley}}, title = {{{Structural Investigation of High-Valent Manganese–Salen Complexes by UV/Vis, Raman, XANES, and EXAFS Spectroscopy}}}, doi = {{10.1002/chem.200390154}}, volume = {{9}}, year = {{2003}}, } @phdthesis{40912, author = {{Topalović, Elvira}}, title = {{{Sprachwahl – Textsorte – Dialogstruktur. Zu Verhörprotokollen aus Hexenprozessen des 17. Jahrhunderts.}}}, year = {{2003}}, }