@article{16684, author = {{Dellnitz, M. and Sch�tze, O. and Hestermeyer, T.}}, issn = {{0022-3239}}, journal = {{Journal of Optimization Theory and Applications}}, pages = {{113--136}}, title = {{{Covering Pareto Sets by Multilevel Subdivision Techniques}}}, doi = {{10.1007/s10957-004-6468-7}}, year = {{2005}}, } @inproceedings{11803, abstract = {{In this paper we propose a novel adaptation algorithm for Filter-and-Sum beamforming in spatially correlated noise. Deterministic and stochastic gradient ascent algorithms are derived from a constrained optimization problem, which iteratively estimate the principal eigenvecto r of a generalized eigenvalue problem. The method does not require an explicit estimation of the speaker location. It is shown that the well-known Delay-and-Sum beamformer and the previously introduced Filter-and-Sum beamformer in spatially white noise are obtained as special cases. Further, bounds on the maximally achievable SNR gains are derived and it is shown that the proposed adaptation algorithm is able to approach these performance bounds.}}, author = {{Haeb-Umbach, Reinhold and Warsitz, Ernst}}, booktitle = {{International Workshop on Acoustic Echo and Noise Control (IWAENC 2005)}}, title = {{{Adaptive Filter-and-Sum Beamforming in Spatially Correlated Noise}}}, year = {{2005}}, } @inproceedings{11930, abstract = {{For human-machine interfaces in distant-talking environments multichannel signal processing is often employed to obtain an enhanced signal for subsequent processing. In this paper we propose a novel adaptation algorithm for a filter-and-sum beamformer to adjust the coefficients of FIR filters to changing acoustic room impulses, e.g. due to speaker movement. A deterministic and a stochastic gradient ascent algorithm are derived from a constrained optimization problem, which iteratively estimates the eigenvector corresponding to the largest eigenvalue of the cross power spectral density of the microphone signals. The method does not require an explicit estimation of the speaker location. The experimental results show fast adaptation and excellent robustness of the proposed algorithm.}}, author = {{Warsitz, Ernst and Haeb-Umbach, Reinhold}}, booktitle = {{IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2005)}}, keywords = {{acoustic filter-and-sum beamforming, acoustic room impulses, acoustic signal processing, adaptive principal component analysis, adaptive signal processing, architectural acoustics, constrained optimization problem, cross power spectral density, deterministic algorithm, deterministic algorithms, distant-talking environments, eigenvalues and eigenfunctions, eigenvector, enhanced signal, filter-and-sum beamformer, FIR filter coefficients, FIR filter coefficients, FIR filters, gradient methods, human-machine interfaces, iterative estimation, iterative methods, largest eigenvalue, microphone signals, multichannel signal processing, optimisation, principal component analysis, spectral analysis, stochastic gradient ascent algorithm, stochastic processes}}, pages = {{iv/797--iv/800 Vol. 4}}, title = {{{Acoustic filter-and-sum beamforming by adaptive principal component analysis}}}, doi = {{10.1109/ICASSP.2005.1416129}}, volume = {{4}}, year = {{2005}}, } @inproceedings{15155, author = {{Böttcher, Stefan and Steinmetz, Rita}}, booktitle = {{16th International Workshop on Database and Expert Systems Applications (DEXA'05)}}, isbn = {{0769524249}}, pages = {{842--846}}, publisher = {{IEEE}}, title = {{{Embedding XML Schema Constraints in Search-Based Intersection Tests for XPath Query Optimization}}}, doi = {{10.1109/dexa.2005.83}}, year = {{2005}}, } @inbook{36076, author = {{Schlegel-Matthies, Kirsten}}, booktitle = {{Neue Aspekte der Ernährungsbildung}}, editor = {{Heseker , Helmut}}, isbn = {{783930007202}}, pages = {{36--43; 217--218}}, publisher = {{Umschau Zeitschriftenverlag}}, title = {{{Ernährung zwischen Natur und Kultur: Das Beispiel Fleisch}}}, year = {{2005}}, } @inbook{36075, author = {{Schlegel-Matthies, Kirsten}}, booktitle = {{Neue Hauswirtschaft. Ein Material für Multiplikator/innen der familien- und haushaltsbezogenen Bildung}}, pages = {{64--85}}, title = {{{Neues Konsum- und Finanzmanagement }}}, year = {{2005}}, } @article{54936, abstract = {{The role of glomerular endothelial cells in kidney fibrosis remains incompletely understood. While endothelia are indispensable for repair of acute damage, they can produce extracellular matrix proteins and profibrogenic cytokines that promote fibrogenesis. We used a murine cell line with all features of glomerular endothelial cells (glEND.2), which dissected the effects of vascular endothelial growth factor (VEGF) on cell migration, proliferation, and profibrogenic cytokine production. VEGF dose-dependently induced glEND.2 cell migration and proliferation, accompanied by up-regulation of VEGFR-2 phosphorylation and mRNA expression. VEGF induced a profibrogenic gene expression profile, including up-regulation of TGF-beta1 mRNA, enhanced TGF-beta1 secretion, and bioactivity. VEGF-induced endothelial cell migration and TGF-beta1 induction were mediated by the phosphatidyl-inositol-3 kinase pathway, while proliferation was dependent on the Erk1/2 MAP kinase pathway. This suggests that differential modulation of glomerular angiogenesis by selective inhibition of the two identified VEGF-induced signaling pathways could be a therapeutic approach to treat kidney fibrosis.}}, author = {{Li, Zhao-Dong and Bork, Jens Peter and Krueger, Bettina and Patsenker, Eleonora and Schulze-Krebs, Anja and Hahn, Eckhart G. and Schuppan, Detlef}}, journal = {{Biochemical and Biophysical Research Communications}}, number = {{4}}, pages = {{1049–1060}}, publisher = {{Elsevier}}, title = {{{VEGF induces proliferation, migration, and TGF-$\beta$1 expression in mouse glomerular endothelial cells via mitogen-activated protein kinase and phosphatidylinositol 3-kinase}}}, doi = {{10.1016/j.bbrc.2005.07.005}}, volume = {{334}}, year = {{2005}}, } @article{54941, abstract = {{Autonomous networking has become the buzzword for attempts of building high-scalable network architectures, which are self-organizing, self-maintaining and self-healing. Few of these approaches were successful and none has shown to provide all the promised functions. We try to study the processes in computer networks using molecular processes as the paradigm. This novel approach shows many similarities between computer networking and cellular mechanisms. In this paper, we focus on the area of network security as one research area with high demand for high-scalable mechanisms providing the needed functionality. After identifying similarities between nature and technology, we discuss potential research domains, which are high potentials for learning directly from molecular biology using the example of security threats in communication networks. We see the proposed mechanism as a generic approach for autonomous networking. The countermeasures against attacks in computer networks are only a special example to introduce the mechanisms.}}, author = {{Krueger, Bettina and Dressler, Falko}}, journal = {{IPSI Transactions on Advances Research: Issues in Computer Science and Engineering}}, number = {{1}}, pages = {{43–50}}, publisher = {{IPSI}}, title = {{{Molecular Processes as a Basis for Autonomous Networking}}}, volume = {{1}}, year = {{2005}}, } @inproceedings{54948, abstract = {{Bio-inspired communication methodologies promise to enable more scalable self-organizing network infrastructures. Especially in the area of mobile ad hoc sensor networks, such solutions are required in order to qualify them for simplified development and deployment based on autonomously evolving mechanisms to work on global tasks, i.e. to show an emergent behavior. In this paper, we introduce the ongoing research of our Autonomic Networking group focused on the developments on efficient data dissemination in sensor networks. A particular example of how to study biological processes and to adapt the results in communication networks, the feedback loop mechanism, depicts the potentials of this research area.}}, author = {{Dressler, Falko and Krueger, Bettina and Fuchs, Gerhard and German, Reinhard}}, booktitle = {{18th ACM/GI/ITG International Conference on Architecture of Computing Systems - System Aspects in Organic and Pervasive Computing (ARCS 2005): Workshop Self-Organization and Emergence}}, pages = {{139–144}}, publisher = {{Springer}}, title = {{{Self-Organization in Sensor Networks using Bio-Inspired Mechanisms}}}, year = {{2005}}, } @article{27904, author = {{Methfessel, B. and Bigga, Regine}}, journal = {{Schlussbericht, REVIS – Reform der Ernährungs- und Verbraucherbildung in Schulen. }}, title = {{{Kooperationsprojekt REVIS: Länderbericht Baden-Württemberg. }}}, year = {{2005}}, } @book{27903, author = {{Bigga, Regine}}, title = {{{Bildungsstandards. Eine Diskussion um Arbeitslehre - Haushalt - Technik - Textilarbeit - Wirtschaft}}}, year = {{2005}}, } @article{45433, author = {{Mahnken, Rolf and Stein, E. and Bischoff, D.}}, issn = {{0029-5981}}, journal = {{International Journal for Numerical Methods in Engineering}}, keywords = {{Applied Mathematics, General Engineering, Numerical Analysis}}, number = {{5}}, pages = {{1015--1029}}, publisher = {{Wiley}}, title = {{{A stabilization procedure by line-search computation for first order approximation strategies in structural optimization}}}, doi = {{10.1002/nme.1620350505}}, volume = {{35}}, year = {{2005}}, } @article{58597, abstract = {{AbstractSyntheses and Structure of Chiral Metallatetrahedron Complexes of the Type [Re2(M1PPh3)(M2PPh3)(μ‐PCy2)(CO)7C≡CPh] (M1 = Ag, Au; M2 = Cu, Ag, Au)From the reaction of Li[Re2(μ‐H)(μ‐PCy2)(CO)7(C(Ph)O)] (1) with Ph3AuC≡CPh both benzaldehyde and the trinuclear complex Li[Re2(AuPPh3)(μ‐PCy2)(CO)7C≡CPh] (2a) were obtained in high yield. The complex anion was isolated as its PPh4‐salt 2b. The latter reacts with coinage metal complexes PPh3M2Cl [M2 = Cu, Ag, Au] to give chiral heterometallatetrahedranes of the general formula [Re2(AuPPh3)(M2PPh3)(μ‐PCy2)(CO)7C≡CPh] (M2 = Cu 3a, Ag 3b, Au 3c). The corresponding complex [Re2(AgPPh3)2(μ‐PCy2)(CO)7C≡CPh] (3d) is obtained from the reaction of [Re2(AgPPh3)2(μ‐PCy2)(CO)7Cl] (4) with LiC≡CPh. 3d undergoes a metathesis reaction in the presence of PPh3CuCl giving [Re2(AgPPh3)(CuPPh3)(μ‐PCy2)(CO)7C≡CPh] (3e) and PPh3AgCl. Analogous metathesis reactions are observed when 3c is reacted with PPh3AgCl or PPh3CuCl giving 3a or 3b, respectively. The reaction of 1 with PPh3AuCl gives benzaldehyde and Li[Re2(AuPPh3)(μ‐PCy2)(CO)7Cl] (5a) which upon reaction with PhLi forms the trinuclear complex Li[Re2(AuPPh3)(μ‐PCy2)(CO)7Ph] (6a). Again this complex was isolated as its PPh4‐salt 6b. In contrast to 2b, 6b reacts with one equivalent of Ph3PAuCl by transmetalation to give Ph3PAuPh and PPh4[Re2(AuPPh3)(μ‐PCy2)(CO)7Cl] (5b). The X‐ray structures of the compounds 3a, 3b, 3e and 4 are reported.}}, author = {{Seewald, Oliver and Flörke, Ulrich and Egold, Hans and Haupt, Hans‐Jürgen and Schwefer, Meinhard}}, issn = {{0044-2313}}, journal = {{Zeitschrift für anorganische und allgemeine Chemie}}, number = {{2}}, pages = {{204--210}}, publisher = {{Wiley}}, title = {{{Synthese und Struktur chiraler Heterometallatetrahedrane des Typs [Re2(M1PPh3)(M2PPh3)(μ‐PCy2)(CO)7C≡CPh] (M1 = Ag, Au; M2 = Cu, Ag, Au)}}}, doi = {{10.1002/zaac.200500340}}, volume = {{632}}, year = {{2005}}, } @inbook{36078, author = {{Schlegel-Matthies, Kirsten}}, booktitle = {{Heterogenität als Chance. Vom produktiven Umgang mit Gleichheit und Differenz in der Schule}}, editor = {{Bräu, Karin and Schwerdt, Ulrich}}, pages = {{197–217}}, publisher = {{Lit-Verlag}}, title = {{{Fachdidaktische Perspektiven auf den Umgang mit Heterogenität im haushaltsbezogenen Unterricht}}}, year = {{2005}}, } @inproceedings{19693, author = {{Schweer, Andrea and Leifhelm, Michael and Degener, Bastian and Heering, Oliver and Tannenbaum, Stefan and Röglin, Heiko and Gunia, Christian and Englert, Matthias and Briest, Patrick and Sudholt, Dirk and Brockhoff, Dimo and Wegener, Ingo and Jansen, Thomas and Plociennik, Kai}}, booktitle = {{Parallel Problem Solving from Nature - PPSN VIII}}, title = {{{Experimental Supplements to the Theoretical Analysis of EAs on Problems from Combinatorial Optimization}}}, year = {{2004}}, } @article{27750, author = {{Buyken, Anette and Hahn, S and Kroke, A}}, issn = {{0307-0565}}, journal = {{International Journal of Obesity}}, pages = {{24--28}}, title = {{{Differences between recumbent length and stature measurement in groups of 2- and 3-y-old children and its relevance for the use of European body mass index references}}}, doi = {{10.1038/sj.ijo.0802738}}, year = {{2004}}, } @techreport{27925, author = {{Schlegel-Matthies, Kirsten}}, title = {{{Verbraucherbildung im Forschungsprojekt REVIS – Grundlagen}}}, year = {{2004}}, } @article{27926, author = {{Schlegel-Matthies, Kirsten}}, journal = {{Campus Culinaire }}, pages = {{103--108}}, title = {{{„Was gibt’s heute?“ Aktuelle Ansätze der Ernährungsbildung}}}, volume = {{1}}, year = {{2004}}, } @inproceedings{18364, abstract = {{The visualisation of manufacturing-processes assists the user in understanding and analysis. Typically he can move free and unguided in a virtual environment which visualizes the entire process. Thus knowledge and conclusions are to some extend acquired on a random base. This article describes the development of a tool, which enables the user to interactively improve significant production processes in the simulation. He moves in a virtual 3D-environment (walkthrough system) and is able to acquire automatically calculated indications for significant processes. At the same time the simulation considers significant objects in a more detailed way. If the viewer is interested in a significant process, he is automatically guided to the relevant location where he can examine the critical situation by modification of the simulation model.}}, author = {{Mueck, Bengt and Dangelmaier, Wilhelm and Laroque, Christoph and Fischer, Matthias and Kortenjan, Michael}}, booktitle = {{Simulation and Visualisation 2004}}, pages = {{73--83}}, publisher = {{SCS European Publishing House}}, title = {{{Guidance of Users in Interactive 3D-Visualisations of Material Flow Simulations}}}, year = {{2004}}, } @inproceedings{8952, abstract = {{In turbomachinery, friction contacts are widely used to reduce dynamic stresses in turbine blades in order to avoid expensive damages. As a result of energy dissipation in the friction contacts the blade vibration amplitudes are reduced. In case of so-called friction dampers, which are pressed on the platforms of the blades by centrifugal forces, the damping effect can be optimized by varying the damper mass. This optimization can be done by means of a simulation model applying the so-called component mode synthesis and the Harmonic Balance Method to reduce computation time. It is based on the modal description of each substructure. In a real turbine or compressor blading great differences in the magnitude of the individual blade amplitudes occur caused by unavoidable mistuning of all system parameters like contact parameters and natural frequencies of the blades. It may happen that most of the blades experience only small stresses whereas a few blades experience critical stresses. Therefore, it is necessary to consider mistuning for all system parameters to simulate the forced response of bladed disk assemblies with friction contacts. For a mistuned bladed disk the complete system has to be modeled to calculate the dynamic response. In practice, usually the standard deviations instead of the distributions of the system parameters are known. Therefore, Monte-Carlo simulations are necessary to calculate the forced response of the blades for given mean values and standard deviations of the system parameters. To reduce the computational time, an approximate method has been developed and extended for small and moderate standard deviations of the system parameters to calculate the distribution and the envelopes of the frequency response functions for statistically varying system parameters, in the following called statistical mistuning. The approximate method is based on a sensitivity analysis and the assumption of a Weibull distribution of the vibration amplitudes of the blades. Both, the approximate method and the assumption of a Weibull distribution of the vibration amplitudes are validated by Monte-Carlo simulations. By these investigations the influence of different arrangements of the system parameters for given mean values and standard deviations of the vibration amplitudes of the blades can be determined, too. For the present investigations only a small influence of the arrangement of blades with respect to their natural frequencies has been observed. On the other hand, an intentional mistuning of the damper masses and the natural frequencies of the blades in a systematic way, in the following called systematic mistuning, can be investigated to reduce the amplitudes of the system. The simulation results of a systematic mistuning has been validated by a test rig with a rotating bladed disk assembly with friction dampers. The investigations show a good agreement between the simulations and the measurements but only a slight decrease of the maximum amplitudes in case of a systematic mistuning. Copyright {\copyright} 2004 by ASME}}, author = {{Götting, Florian and Sextro, Walter and Panning, Lars and Popp, Karl}}, booktitle = {{Proceedings of ASME TURBO Expo, Power for Land, Sea, and Air}}, keywords = {{Friction, Disks}}, number = {{GT2004-53310}}, pages = {{257--267}}, title = {{{Systematic mistuning of bladed disk assemblies with friction contacts}}}, volume = {{6}}, year = {{2004}}, }