TY - JOUR AB - Satellite positioning systems, such as GPS or the future European system Galileo, employ direct-sequence spread-spectrum signals. The positioning accuracy is strongly affected by the quality of the pseudo range measurements. These measurements necessitate code and carrier synchronization of the received signal with the internally generated reference signals. In this type of systems one major error source is the multipath phenomenon, which results in a sum of delayed and weighted copies of the original signal to be present at the receiver input. This can result in a systematic error of the code tracking loop resulting in range errors in the order of several tens of meters. In this paper we propose an extension of the standard code tracking loop capable of estimating the parameters of the line-of-sight (LOS) signal and separating the LOS from the reflected signal portions. It is based on an analysis of the cross correlation of the received signal with a locally generated code sequence in the vicinity of the tracking point of a Delay-Locked Loop (DLL). For this reason, we call this method Cross Correlation Function (CCF) Analysis. The proposed method achieves considerably more accurate estimates than a DLL. Its performance is comparable to the Multipath Estimating Delay-Locked Loop (MEDLL) which is considered to be the best method for reducing multipath induced errors, so far. However, the computational complexity of the CCF Analysis is by a factor of three smaller compared to the MEDLL. Extensive simulations have been conducted for the proposed method and the MEDLL in order to assess the robustness of the two approaches under various signal constellations. AU - Bischoff, R. AU - Haeb-Umbach, Reinhold AU - Nammi, Sai Ramesh ID - 11732 IS - 1 JF - AEUe, Int. Journal on Electronics and Communications TI - Multipath-Resistant Time of Arrival Estimation for Satellite Positioning VL - 58 ER - TY - CONF AB - A major drawback of distributed versus terminal-based speech recognition is the fact that transmission errors can lead to degraded recognition performance. In this paper we employ soft features to mitigate the effect of bit errors on wireless transmission links: At the receiver a posteriori probabilities of the transmitted feature vectors are computed by combining bit reliability information provided by the channel decoder and a priori knowledge about residual redundancy in the feature vectors. While the first-order moment of the a posteriori probability function is the MMSE estimate, the second-order moment is a measure of the uncertainty in the reconstructed features. We conducted realistic simulations of GSM transmission and achieved significant improvements in word accuracy compared to the error mitigation strategy described in the ETSI standard. AU - Haeb-Umbach, Reinhold AU - Ion, Valentin ID - 11790 T2 - International Conference on Spoken Language Processing (ICSLP 2004) TI - Soft Features for Improved Distributed Speech Recognition over Wireless Networks ER - TY - CONF AB - The paper is concerned with binaural signal processing for a bimodal human-robot interface with hearing and vision. The two microphone signals are processed to obtain an enhanced single-channel input signal for the subsequent speech recognizer and to localize the acoustic source, an important information for establishing a natural human-robot communication. We utilize a robust adaptive algorithm for filter-and-sum beamforming (FSB) and extract speaker direction information from the resulting FIR filter coefficients. Further, particle filtering is applied which conducts a nonlinear Bayesian tracking of speaker movement. Good location accuracy can be achieved even in highly reverberant environments. The results obtained outperform the conventional generalized cross correlation (GCC) method. AU - Warsitz, Ernst AU - Haeb-Umbach, Reinhold ID - 11931 KW - bimodal human-robot interface KW - binaural signal processing KW - enhanced single-channel input signal KW - filter-and-sum beamforming KW - filtering theory KW - FIR filter coefficient KW - generalized cross correlation method KW - microphones KW - microphone signal KW - nonlinear Bayesian tracking KW - particle filtering KW - robust adaptive algorithm KW - robust speaker direction estimation KW - signal processing KW - speech enhancement KW - speech recognition KW - speech recognizer KW - user interfaces T2 - IEEE Workshop on Multimedia Signal Processing (MMSP 2004) TI - Robust speaker direction estimation with particle filtering ER - TY - CONF AB - While the main objective of adaptive Filter-and-Sum beamforming is to obtain an enhanced speech signal for subsequent processing like speech recognition, we show how speaker localization information can be derived from the filter coefficients. To increase localization accuracy, speaker tracking is performed by non-linear Bayesian state estimation, which is realized by sequential Monte Carlo methods. Improved acquisition and tracking performance was achieved even in highly reverberant environments, in comparison with both a Kalman Filter and a recently proposed Particle Filter operating on the output of a nonadaptive Delay-and-Sum beamformer. AU - Warsitz, Ernst AU - Haeb-Umbach, Reinhold AU - Peschke, Sven ID - 11932 T2 - International Conference on Spoken Language Processing (ICSLP 2004) TI - Adaptive Beamforming Combined with Particle Filtering for Acoustic Source Localization ER - TY - CHAP AU - Beutner, Marc AU - Twardy, M ED - Busian, A ED - Drees, G ED - Lang, M ID - 12897 T2 - Mensch. Bildung. Beruf. Herausforderungen an die Berufspädagogik. Dortmunder Beiträge zur Pädagogik TI - Berufskollegs als Kompetenzzentren und die damit verbundenen Kooperationsanforderungen zwischen Bildungsgängen VL - 35 ER - TY - CONF AB - In der industriellen Messtechnik werden optische, chemische und akustische Messverfahren zur Ermittlung von Prozessgrößen eingesetzt. Dabei haben die akustischen Messverfahren aufgrund ihrer Robustheit und Wartungsfreundlichkeit ein sehr großes Einsatzgebiet. Impulsbasierte Ultraschallmesssysteme werden unter anderem zur Messung von Durchfluss und Füllstand eingesetzt. Zunehmend werden sie aber auch in der Flüssigkeitsanalytik zur Konzentrationsmessung und Stoffanalyse herangezogen. Dabei führen Gasblasen in den zu untersuchenden flüssigen Medien immer wieder zu Problemen, da bei Anwesenheit von Gasblasen die akustischen Stoffkenngrößen verändert werden. Diese Probleme können ihre Ursache auch in der Signalverarbeitung haben. Dieser Beitrag soll zeigen, welche Methoden zur Signalverarbeitung geeignet sind um dieses Problem zu lösen. AU - Gulsch, Michael AU - Henning, Bernd ID - 15362 TI - Neue Methoden der Signalauswertung für Ultraschall-Messsysteme ER - TY - CONF AB - The classical forms of noise present in the frequency of MEMS resonators have been recently investigated and described in detail. The present paper extends this investigation to 1/f noise. That is of fundamental nature in microelectromechanical systems (MEMS) resonators, and is given by the universal quantum 1/f effect. In recent years new piezoelectric and compound semiconductor materials have been developed along with advanced manufacturing technologies for MEMS including them. These technologies enable the deposition of thin compound semiconductor, or PZT films and their integration into MEMS devices. AU - Handel, Peter AU - Henning, Bernd ID - 15363 SN - 80-2272050-X TI - 1/f-Frequency Fluctations and Phase Noise in MEMS Resonators ER - TY - JOUR AU - Henning, Bernd ID - 15364 IS - 9 JF - Technisches Messen TI - Die akustische Impedanz als Messgröße zur Charakterisierung flüssiger Stoffsysteme VL - 71 ER - TY - CONF AB - The appliance of time-reversal acoustics to classical trans-ducer design, medical, technical or audible range applica-tions brings forward new ideas whenever we need both, focusing acoustical energy in time and space. Unfortunately, the spatiotemporal focusing is limited through the amount of applied transducer elements as well as the ergodicity and randomness of the cavity [1]. This paper will show how the simulated annealing technique, a multi-objec¬tive optimiza-tion algorithm [2], is used to increase the nar¬rowness of the refocused spot by breaking up randomness for the benefit of ergodicity in a predetermined cavity. AU - Rautenberg, Jens AU - Olszewski, Dirk AU - Henning, Bernd ID - 15365 SN - 2-9521105-2-2 T2 - Proceedings of the Joint Congress CFA/DAGA 2004 TI - A Space Optimization Method for Time-Reversal Super-Focusing ER - TY - CONF AU - Dubois, D. AU - Hüllermeier, Eyke AU - Prade, H. ED - Cubero, JC. ED - Sanchez, D. ED - Ras, Z. ED - Sudkamp, T. ID - 15801 T2 - In Proceedings of the Workshop on Alternative Techniques for Data Mining and Knowledge Discovery, IEEE International Conference on Data Mining, Brighton, UK TI - A systematic approach to the assessment of fuzzy association rules ER - TY - CONF AU - Weskamp, N. AU - Hüllermeier, Eyke AU - Kuhn, D. AU - Klebe, G. ED - Giegerich, R. ED - Stoye, J. ID - 15804 T2 - In Proceedings of GCB-2004 of the German Conference on Bioinformatics, Bielefeld, Germany TI - Graph alignments: A new concept to detect conserved regions in protein active sites ER - TY - CONF AU - Hüllermeier, Eyke ED - Lopez de Mantaras, R. ED - Saitta, L. ID - 14842 T2 - In Proceedings ECAI-2004, 16th European Conference on Artificial Inteligence, Valencia, Spain TI - Instance-based prediction with guaranteed confidence ER - TY - JOUR AU - Bach, Stefan AU - Haan, Peter AU - Maiterth, Ralf AU - Sureth-Sloane, Caren ID - 14963 JF - DIW Berlin: Politikberatung kompakt TI - Modelle für die Vermögensbesteuerung von natürlichen Personen und Kapitalgesellschaften - Konzepte, Aufkommen, wirtschaftliche Wirkungen VL - 1 ER - TY - JOUR AU - Müller, Jens AU - Nordhoff, Daniel AU - Sureth-Sloane, Caren ID - 14964 JF - Fach 30 TI - Der Betriebsausgabenabzug nach aktuellem Recht – Rechtliche Grundlagen und ökonomische Wirkungen, Buchführung, Bilanz, Kostenrechnung, Betrieb und Rechnungswesen ER - TY - JOUR AU - Sureth-Sloane, Caren AU - Nordhoff, Daniel ID - 14966 IS - 15 JF - Zeitschrift für Steuern und Recht TI - Verschmelzung einer Kapitalgesellschaft auf eine Personengesellschaft - Sind Bilanzierungswahlrechte gemäß § 3 UmwStG notwendig? VL - 1 ER - TY - CONF AU - Goetz, F. AU - Hinn, R. AU - Domik, Gitta ID - 15039 T2 - Paderborner Workshop Augmented \& Virtual Reality in der Produktentstehung, Paderborn, Germany TI - Augmented Reality als Hilfsmittel zur Navigation und Interaktion in kooperativen Visualisierungen. 3 ER - TY - CONF AU - Böttcher, Stefan AU - Steinmetz, Rita ID - 15157 T2 - Proceedings of the International Conference on Internet Computing, IC '04 TI - Optimized Internet Search Based on a Intersection Test for XPath Expressions under a DTD ER - TY - CONF AU - Hüllermeier, Eyke AU - Fürnkranz, J. ID - 15217 T2 - In Proceedings IPMU-2004 10th International Conference on Information Processing and Management of Uncertainty in Knowledge-Based Systems, Perugia, Italy TI - Comparison of ranking procedures in pairwise preference learning ER - TY - CONF AU - Hüllermeier, Eyke AU - Fürnkranz, J. ID - 15218 T2 - in Proceedings FUZZ-IEEE-04, IEEE International Conference on Fuzzy Systems, Budapest, Hungary TI - Ranking by pairwise comparison: A note on risk minimization ER - TY - CONF AU - Karimi, I. AU - Hüllermeier, Eyke AU - Meskouris, K. ID - 15219 T2 - in Proceedings 6th International FLINS Conference on Applied Computational Intelligence, Duinse Polders, Blankenberg,Belgien TI - An earthquake risk assessment method based on fuzzy probability ER - TY - CONF AU - Hüllermeier, Eyke AU - Beringer, J. ID - 15220 T2 - In Proceedings IPMU-2004 10th International Conference on Information Processing and Management of Uncertainty in Knowledge-Based Systems, Perugia, Italy TI - Learning decision rules from positive and negative preferences ER - TY - BOOK AU - Krimphove, Dieter ID - 1616 TI - Die UWG-Reform Das neue Gesetz gegen den unlauteren Wettbewerb ER - TY - BOOK AU - Krimphove, Dieter ID - 1617 TI - Werberecht Prüfungswissen, Multiple-Choice-Tests, Gesetze, Urteile ER - TY - JOUR AU - Hüllermeier, Eyke AU - Renners, I. AU - Grauel, A. ID - 16185 IS - 2-3 JF - Mathware and Soft Computing TI - An evolutionary approach to constraints-regularized learning VL - 11 ER - TY - JOUR AU - Weskamp, N. AU - Kuhn, D. AU - Hüllermeier, Eyke AU - Klebe, G. ID - 16186 IS - 10 JF - Bioinformatics TI - Efficient similarity search in protein structure databases: Improving clique-detection through clique-hashing VL - 20 ER - TY - JOUR AU - Hüllermeier, Eyke ID - 16187 IS - 6 JF - International Journal of Intelligent Systems TI - Flexible constraints for regularization in learning from data VL - 19 ER - TY - JOUR AB - We present a new data structure for rendering highly complex virtual environments of arbitrary topology. The special feature of our approach is that it allows an interactive navigation in very large scenes (30 GB/400 million polygons in our benchmark scenes) that cannot be stored in main memory, but only on a local or remote hard disk. Furthermore, it allows interactive rendering of substantially more complex scenes by instantiating objects. The sampling process is done in the preprocessing. There, the polygons are randomly distributed in our hierarchical data structure, the randomized sample tree. This tree only uses space that is linear in the number of polygons. In order to produce an approximate image of the scene, the tree is traversed and polygons stored in the visited nodes are rendered. During the interactive walkthrough, parts of the sample tree are loaded from local or remote hard disk. We implemented our algorithm in a prototypical walkthrough system. Analysis and experiments show that the quality of our images is comparable to images computed by the conventional z-buffer algorithm regardless of the scene topology. AU - Klein, Jan AU - Krokowski, Jens AU - Fischer, Matthias AU - Wand, Michael AU - Wanka, Rolf AU - Meyer auf der Heide, Friedhelm ID - 16399 JF - Presence: Teleoperators and Virtual Environments SN - 1054-7460 TI - The Randomized Sample Tree: A Data Structure for Interactive Walk-Throughs in Externally Stored Virtual Environments ER - TY - BOOK ED - Schmeisser, Wilhelm ED - Krimphove, Dieter ED - Brinkkötter, Hans-Otto ID - 1640 TI - Internationales Entgeltmanagement ER - TY - BOOK ED - Schmeisser, Wilhelm ED - Bretz, Michael ED - Keßler, Jürgen ED - Krimphove, Dieter ID - 1641 TI - Handbuch: Krisen- und Insolvenzmanagement ER - TY - CONF AU - Liu Jing, Michelle AU - Ruehrup, Stefan AU - Schindelhauer, Christian AU - Volbert, Klaus AU - Dierkes, Martin AU - Bellgardt, Andreas AU - Ibers, Rüdiger AU - Hilleringmann, Ulrich ID - 13071 T2 - {GOR/NGB Conference Tilburg 2004} TI - Sensor Networks with More Features Using Less Hardware ER - TY - GEN AU - Breu, Ruth AU - Fahringer, Thomas AU - Fensel, Dieter AU - Hellebrand, Sybille AU - Middeldorp, Aart AU - Scherzer, Otmar ID - 13099 TI - Im Westen viel Neues - Informatik an der Universität Innsbruck ER - TY - GEN AU - Hellebrand, Sybille AU - Wuertenberger, Armin AU - S. Tautermann, Christofer ID - 13100 KW - WORKSHOP TI - Data Compression for Multiple Scan Chains Using Dictionaries with Corrections ER - TY - CONF AU - Trier, Matthias AU - Müller, Claudia AU - Herzog, Michael ID - 13369 T2 - Proceedings Potsdamer Multimedia Konferenz 2004 TI - Effiziente Videoproduktionsprozesse fuer komponentenbasierte E-Learning Inhalte ER - TY - CONF AU - Herzog, Michael A. AU - Trier, Matthias ID - 13372 TI - Konzepte für die Videoproduktion in virtuellen Lernszenarien Beitrag zum Kollegiatentag 2004 des SVKB ER - TY - CONF AU - Trier, Matthias ID - 13373 T2 - Proceedings Sunbelt XXIV Conference, Portoroz, Slovene, INSNA Association, 2004 TI - IT-Supported Monitoring and Analysis of Social Networks in Virtual Knowledge Communities ER - TY - CONF AU - Trier, Matthias AU - Bobrik, A. ID - 13375 T2 - Proceedings Sunbelt XXVII Conference, Corfu, Greece, INSNA Association, 2007. TI - Measuring Brokering Activity - a novel measure for dynamic network evolution ER - TY - CONF AU - Carlson, Emma AU - Bettstetter, Christian AU - Karl, Holger AU - Prehofer, Christian AU - Wolisz, Adam ID - 1002 T2 - Vehicular Technology Conference, 2004. VTC2004-Fall. 2004 IEEE 60th TI - Distributed maintenance of resource reservation paths in multihop 802.11 networks ER - TY - CONF AU - Gross, James AU - Karl, Holger AU - Wolisz, Adam ID - 1006 T2 - European Wireless 2004 TI - On the effect of inband signaling and realistic channel knowledge on dynamic OFDM-FDMA systems ER - TY - JOUR AU - Kubisch, Martin AU - Karl, Holger AU - Wolisz, Adam ID - 1017 IS - 3-4 JF - Frequenz TI - A MAC protocol for wireless sensor networks with multiple selectable, fixed-orientation antennas ER - TY - JOUR AU - Steffen, Eckhard ID - 10177 JF - Discrete Mathematics TI - Measurements of edge-uncolorability VL - 280 ER - TY - JOUR AU - Grünewald, Stefan AU - Steffen, Eckhard ID - 10178 JF - J. Graph Theory TI - Independent Sets and 2-factors in edge-chromatic critical graphs VL - 45 ER - TY - CONF AU - Gross, James AU - Karl, Holger AU - Wolisz, Adam ID - 1019 T2 - 2nd International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks 2004 (WiOpt 2004) TI - Throughput optimization of dynamic OFDM-FDMA systems with inband signaling ER - TY - CONF AU - Walder, Herbert AU - Platzner, Marco ID - 13618 SN - 0302-9743 T2 - Proceedings of the 14th International Conference on Field Programmable Logic and Applications (FPL) TI - A Runtime Environment for Reconfigurable Hardware Operating Systems ER - TY - CONF AU - Walder, Hebert AU - Nobs, Samuel AU - Platzner, Marco ID - 13619 T2 - Proceedings of the 4th International Conference on Engineering of Reconfigurable Systems and Algorithms (ERSA) TI - XF-BOARD: A Prototyping Platform for Reconfigurable Hardware Operating Systems ER - TY - CONF AU - Dyer, Matthias AU - Platzner, Marco AU - Thiele, Lothar ID - 13620 SN - 0769522300 T2 - Proceedings 12th Annual IEEE Symposium on Field-Programmable Custom Computing Machines (FCCM) TI - Efficient Execution of Process Networks on a Reconfigurable Hardware Virtual Machine ER - TY - JOUR AU - Ohtake, Akihiro AU - Kocán, Pavel AU - Seino, Kaori AU - Schmidt, Wolf Gero AU - Koguchi, Nobuyuki ID - 13710 JF - Physical Review Letters SN - 0031-9007 TI - Ga-Rich Limit of Surface Reconstructions on GaAs(001): Atomic Structure of the(4×6)Phase VL - 93 ER - TY - JOUR AU - Seino, K. AU - Schmidt, Wolf Gero ID - 13711 IS - 157 JF - Surface Science SN - 0039-6028 TI - H2O on Si(001): surface optical anisotropy from first-principles calculations VL - 571 ER - TY - JOUR AU - Schmidt, Wolf Gero AU - Fuchs, F AU - Hermann, A AU - Seino, K AU - Bechstedt, F AU - Paßmann, R AU - Wahl, M AU - Gensch, M AU - Hinrichs, K AU - Esser, N AU - Wang, S AU - Lu, W AU - Bernholc, J ID - 13712 JF - Journal of Physics: Condensed Matter SN - 0953-8984 TI - Oxidation- and organic-molecule-induced changes of the Si surface optical anisotropy:ab initiopredictions VL - 16 ER - TY - JOUR AU - Palummo, M AU - Pulci, O AU - Sole, R Del AU - Marini, A AU - Hahn, P AU - Schmidt, Wolf Gero AU - Bechstedt, F ID - 13713 JF - Journal of Physics: Condensed Matter SN - 0953-8984 TI - The Bethe–Salpeter equation: a first-principles approach for calculating surface optical spectra VL - 16 ER - TY - JOUR AU - Preuss, M AU - Schmidt, Wolf Gero AU - Seino, K AU - Bechstedt, F ID - 13715 JF - Applied Surface Science SN - 0169-4332 TI - Methylchloride adsorbed on Si(001): an ab initio study VL - 234 ER - TY - JOUR AU - Fleischer, K AU - Chandola, S AU - Esser, N AU - Richter, W AU - McGilp, J.F AU - Schmidt, Wolf Gero AU - Wang, S AU - Lu, W AU - Bernholc, J ID - 13716 JF - Applied Surface Science SN - 0169-4332 TI - Atomic indium nanowires on Si(111): the (4 × 1)–(8 × 2) phase transition studied with reflectance anisotropy spectroscopy VL - 234 ER - TY - JOUR AU - Seino, K. AU - Schmidt, Wolf Gero AU - Bechstedt, F. ID - 13717 IS - 3 JF - Physical Review Letters SN - 0031-9007 TI - Energetics of Si(001) Surfaces Exposed to Electric Fields and Charge Injection VL - 93 ER - TY - JOUR AU - Preuss, M. AU - Schmidt, Wolf Gero AU - Bechstedt, F. ID - 13718 JF - The Journal of Physical Chemistry B SN - 1520-6106 TI - Methyl Chloride Adsorption on Si(001)−Electronic Structure VL - 108 ER - TY - JOUR AU - Seino, K. AU - Schmidt, Wolf Gero AU - Bechstedt, F. ID - 13719 JF - Physical Review B SN - 1098-0121 TI - Organic modification of surface electronic properties: A first-principles study of uracil on Si(001) VL - 69 ER - TY - JOUR AU - Schmidt, Wolf Gero AU - Seino, K. AU - Hahn, P.H. AU - Bechstedt, F. AU - Lu, W. AU - Wang, S. AU - Bernholc, J. ID - 13720 JF - Thin Solid Films SN - 0040-6090 TI - Calculation of surface optical properties: from qualitative understanding to quantitative predictions VL - 455-456 ER - TY - JOUR AU - Seino, K. AU - Schmidt, Wolf Gero ID - 13721 JF - Surface Science SN - 0039-6028 TI - Reflectance anisotropy of uracil covered Si(001) surfaces: Ab initio predictions VL - 548 ER - TY - JOUR AU - Preuss, M. AU - Schmidt, Wolf Gero AU - Seino, K. AU - Furthmüller, J. AU - Bechstedt, F. ID - 13722 IS - 1 JF - Journal of Computational Chemistry SN - 0192-8651 TI - Ground- and excited-state properties of DNA base molecules from plane-wave calculations using ultrasoft pseudopotentials VL - 25 ER - TY - GEN ID - 30167 TI - Aus dem Italienischen ins Deutsche: F. D’Agostini, Che cosa significa essere una donna? Le basi ontologiche della differenza di genere tra analisi concettuale e teoria politica VL - 29 ER - TY - CONF AU - Peckhaus, Volker ED - Hein, Wolfgang ED - Ullrich, Peter ID - 17547 T2 - Mathematik im Fluß der Zeit. Tagung zur Geschichte der Mathematik in Attendorn/Neu-Listernohl (28.5. bis 1.6.2003) TI - ,Aber vielleicht kommt noch eine Zeit, wo auch meine Arbeiten wieder entdeckt und gelesen werde‘: Die gescheiterte Karriere des Ernst Zermelo VL - 44 ER - TY - CHAP AB - Rezension: Journal of the History of Philosophy 43.3 (2005), 367–369 (H.J. Cloeren). AU - Peckhaus, Volker ED - Bernays, Ludwig ID - 17550 T2 - Otto Friedrich Gruppe 1804–1876. Philosoph, Dichter, Philologe TI - Otto Friedrich Gruppe und die Logische Frage VL - 3 ER - TY - CHAP AU - Peckhaus, Volker ED - Link, Godehard ID - 17549 T2 - One Hundred Years of Russell's Paradox. Mathematics, Logic, Philosophy TI - Paradoxes in Göttingen VL - 6 ER - TY - CHAP AU - Peckhaus, Volker ED - Christiansen, Bente ED - Scheffler, Uwe ID - 17548 T2 - Was folgt? Themen zu Wessel TI - Garantiert Widerspruchsfreiheit Existenz? ER - TY - JOUR AB - Rezension: Zbl. Math. 1100.03006; MR 2055237 (2005:03004; J.W. Dauben). AU - Peckhaus, Volker ID - 17545 JF - History and Philosophy of Logic (Special Issue in Honor of Ivor Grattan-Guinness, hg. v. John W. Dawson, Jr.) TI - Calculus Ratiocinator vs. Characteristica Universalis? The Two Traditions in Logic, Revisted VL - 25 ER - TY - CHAP AB - Rezension: Zbl. Math. 1049.01008 (A. C. Lewis). AU - Peckhaus, Volker ED - Grattan-Guinness, Ivor ED - Yadav, B. S. ID - 17544 T2 - History of the Mathematical Sciences TI - Dignaga’s Logic of Invention ER - TY - CHAP AU - Peckhaus, Volker ED - Gabbay, Dov M. ED - Woods, John ID - 17546 T2 - Handbook of the History of Logic, Bd. 3: The Rise of Modern Logic: From Leibniz to Frege TI - Schröder’s Logic ER - TY - CHAP AU - Peckhaus, Volker ED - Schmidt am Busch, Hans-Christoph ED - Wehmeier, Kai F. ID - 17551 T2 - Heinrich Scholz: Logiker, Philosoph, Theologe TI - Scholz als Metaphysiker ER - TY - CHAP AU - Peckhaus, Volker ED - Luoma, Kaisa ED - Oesch, Erna ED - Vilkko, Risto ID - 17552 T2 - Filosofisia tutkielmia - Philosophical Studies in honorem Leila Haaparanta TI - Who was Wilhelm Schlötel? ER - TY - CONF AU - Schafmeister, Frank AU - Kolar, Johann ID - 30309 T2 - Proc. 35th IEEE Power Electronics Specialists Conference (PESC) TI - Novel Modulation Schemes for Conventional and Sparse Matrix Converters Facilitating Reactive Power Transfer Independent of Active Power Flow VL - 4 ER - TY - CONF AU - Ide, Peter AU - Schafmeister, Frank AU - Fröhleke, Norbert AU - Grotstollen, Horst ID - 30308 T2 - Proc. 35th IEEE Power Electronics Specialists Conference (PESC) TI - Enhanced Control Scheme for Three-Phase / Three-Level Rectifiers at Partial Load VL - 1 ER - TY - CONF AU - Schafmeister, Frank AU - Kolar, Johann ID - 30310 T2 - Proc. 11th International Power Electronics and Motion Control Conference (EPE-PEMC) TI - Novel Hybrid Modulation Schemes Extending the Reactive Power Control Range of Conventional and Sparse Matrix Converters Operating at Maximum Output Voltage ER - TY - JOUR AU - Böcker, Joachim AU - Amann, Notker AU - Schulz, Bernd ID - 29920 IS - 14 JF - IFAC Proceedings Volumes KW - General Medicine SN - 1474-6670 TI - Active Suppression of Torsional Oscillations VL - 37 ER - TY - JOUR AU - Amann, Notker AU - Böcker, Joachim AU - Prenner, Franz ID - 29924 IS - 4 JF - IEEE/ASME Transactions on Mechatronics KW - Electrical and Electronic Engineering KW - Computer Science Applications KW - Control and Systems Engineering SN - 1083-4435 TI - Active Damping of Drive Train Oscillations for an Electrically Driven Vehicle VL - 9 ER - TY - CONF AU - Böcker, Joachim ID - 29922 T2 - 2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551) TI - Tolerance band controller for a three-level four-quadrant converter including DC link balancing ER - TY - CONF AU - Njiende, H.D. AU - Fröhleke, N. AU - Böcker, Joachim ID - 30437 T2 - 2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551) TI - Derivation of integrated magnetic components using reluctance and mathematical modeling ER - TY - CONF AU - Kauczor, C. AU - Fröhleke, Norbert ID - 30439 T2 - 2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551) TI - Inverter topologies for ultrasonic piezoelectric transducers with high mechanical Q-factor ER - TY - CONF AU - Wetzel, H. AU - Siegel, A. AU - Njiende, H. AU - Fröhleke, Norbert AU - Böcker, Joachim ID - 30432 T2 - 11th International Power Electronics and Motion Control Conferences, Riga, Latvia TI - Low Voltage Asymmetrical Half-Bridge Converter with Integrated Magnetics ER - TY - CONF AU - Schulz, B. AU - Pottharst, A. AU - Fröhleke, N. AU - Böcker, Joachim ID - 30433 T2 - 11th International Power Electronics and Motion Control Conferences, Riga, Latvia TI - Modelling of Influences to a Linear-Drive-System ER - TY - CONF AU - Pottharst, A. AU - Baptist, K. AU - Schütze, O. AU - Böcker, Joachim AU - Fröhleke, N. AU - Dellnitz, M. ID - 30434 T2 - 11th International Power Electronics and Motion Control Conferences, Riga, Latvia TI - Operating Point Assignment of a Linear Motor Driven Vehicle Using Multiobjective Optimization Methods ER - TY - CONF AU - Li, R. AU - Pottharst, A. AU - Fröhleke, N. AU - Böcker, Joachim ID - 30435 T2 - 11th International Power Electronics and Motion Control Conferences, Riga, Latvia TI - Energy Storage Scheme for Rail-guided Shuttle using Ultracapacitor and Battery ER - TY - CONF AU - Li, R. AU - Pottharst, A. AU - Fröhleke, N. AU - Böcker, Joachim ID - 30438 T2 - PESC 2004, Aachen, Germany TI - Analysis and Design of Improved Isolated Full-Bridge Bi-Directional DC-DC Converter ER - TY - CONF AU - Pottharst, A. AU - Schulz, B. AU - Böcker, Joachim ID - 30440 T2 - SPS/IPC/DRIVES 2004, Nürnberg, Deutschland TI - Kommunikationssystem einer Anlage mit doppelt gespeistem Linearmotor ER - TY - CONF AU - Kauczor, C. AU - Schulte, T. AU - Grotstollen, H. ID - 30436 T2 - ACTUATOR 2004, Bremen, Germany TI - Piezoelectric Transformer of Travelling Wave Type ER - TY - GEN AU - Peckhaus, Volker ED - Hoffmann, Dieter ED - Laitko, Hubert ED - Müller-Wille, Staffan ID - 17678 T2 - Lexikon der bedeutenden Naturwissenschaftler in drei Bänden, Bd. 2: F–Mei TI - Frege, Friedrich Ludwig Gottlob ER - TY - GEN AU - Peckhaus, Volker ED - Hoffmann, Dieter ED - Laitko, Hubert ED - Müller-Wille, Staffan ID - 17679 T2 - Lexikon der bedeutenden Naturwissenschaftler in drei Bänden, Bd. 2: F–Mei TI - Gödel, Kurt Friedrich ER - TY - GEN AU - Peckhaus, Volker ED - Hoffmann, Dieter ED - Laitko, Hubert ED - Müller-Wille, Staffan ID - 17680 T2 - Lexikon der bedeutenden Naturwissenschaftler in drei Bänden, Bd. 3: Men–Z TI - Peirce, Charles Sanders ER - TY - GEN AU - Peckhaus, Volker ED - Hoffmann, Dieter ED - Laitko, Hubert ED - Müller-Wille, Staffan ID - 17685 T2 - Lexikon der bedeutenden Naturwissenschaftler in drei Bänden, Bd. 3: Men–Z TI - Zermelo, Ernst Friedrich Ferdinand ER - TY - GEN AU - Peckhaus, Volker ED - Hoffmann, Dieter ED - Laitko, Hubert ED - Müller-Wille, Staffan ID - 17682 T2 - Lexikon der bedeutenden Naturwissenschaftler in drei Bänden, Bd. 3: Men–Z TI - van der Waerden, Bartel Leendert ER - TY - GEN AU - Peckhaus, Volker ED - Hoffmann, Dieter ED - Laitko, Hubert ED - Müller-Wille, Staffan ID - 17683 T2 - Lexikon der bedeutenden Naturwissenschaftler in drei Bänden, Bd. 3: Men–Z TI - Whitehead, Alfred North ER - TY - GEN AU - Peckhaus, Volker ED - Hoffmann, Dieter ED - Laitko, Hubert ED - Müller-Wille, Staffan ID - 17681 T2 - Lexikon der bedeutenden Naturwissenschaftler in drei Bänden, Bd. 3: Men–Z TI - Tarski, Alfred ER - TY - GEN AU - Peckhaus, Volker ID - 17795 IS - (2003) T2 - History and Philosophy of Logic TI - Rudolf Boehm, Topik. Dordrecht, Boston and London: Kluwer, 2002 (Phaenomenologica vol. 162) VL - 25 ER - TY - THES AU - Yang, Bo ID - 30442 SN - 978-3-8322-3380-8 TI - Regelung der Längs- und Vertikalbewegung des Linearmotors für ein vollaktives spurgeführtes Bahnfahrzeug ER - TY - THES AU - Schulte, T. ID - 30441 SN - 978-3-18-336321-6 TI - Stromrichter- und Regelungskonzepte für Ultraschall-Wanderwellenmotoren ER - TY - GEN AU - Peckhaus, Volker ID - 18486 T2 - Zentralblatt für Mathematik und ihre Grenzgebiete TI - Wittgenstein, Ludwig. "Philosophische Untersuchungen. Philosophical Investigations", transl. from the German by G.E.M. Anscombe, edited with a note by Anscombe and R. Rhees, 3rd rev. ed., Blackwell: Oxford 2001, Reprint 2003 ER - TY - GEN AU - Peckhaus, Volker ID - 18482 T2 - Zentralblatt für Mathematik und ihre Grenzgebiete TI - Ropolyi, László, “Lakatos and Lukács”, in: G. Kampis/L. Kvasz/M. Stöltzner (Hgg.), Appraising Lakatos: Mathematics, Methodology and the Man, Kluwer: Dordrecht 2002, 303–337 ER - TY - GEN AU - Peckhaus, Volker ID - 18481 T2 - Zentralblatt für Mathematik und ihre Grenzgebiete TI - Gillies, Donald/Zheng, Yuxin: “Dynamic Interactions with the Philosophy of Mathematics”, In: Theoria. Segunda Epoca 16, No. 42 (2001), 437–459 ER - TY - GEN AU - Peckhaus, Volker ID - 18485 T2 - Zentralblatt für Mathematik und ihre Grenzgebiete TI - Buldt, Bernd u.a. (Hgg.), "Kurt Gödel: Wahrheit & Beweisbarkeit, Bd. 1: Kompendium zum Werk", öbv & hpt: Wien 2002 ER - TY - GEN AU - Peckhaus, Volker ID - 18483 T2 - Zentralblatt für Mathematik und ihre Grenzgebiete TI - Tomassi, Paul, “Logic after Wittgenstein”, In: Nordic Journal of Philosophical Logic 6 (2001), 43–70 ER - TY - GEN AU - Peckhaus, Volker ID - 18484 T2 - Zentralblatt für Mathematik und ihre Grenzgebiete TI - Lavor, Brendan. "Lakatos. An Introduction", London: Routledge 1998 ER - TY - GEN AU - Peckhaus, Volker ID - 18492 T2 - Zentralblatt für Mathematik und ihre Grenzgebiete TI - Mormann, Thomas, “Towards and Evolutionary Account of Conceptual Change in Mathematics: Proofs and Refutations and the Axiomatic Variation of Concepts”, In: G. Kampis/L. Kvasz/M. Stöltzner (Hgg.), Appraising Lakatos: Mathematics, Methodology and the Man, Kluwer: Dordrecht 2002, 139–156 ER - TY - GEN AU - Peckhaus, Volker ID - 18491 T2 - Zentralblatt für Mathematik und ihre Grenzgebiete TI - Koetsier, Teun. “Lakatos’ Mitigated Scepticism in the Philosophy of Mathematics”, In: G. Kampis/L. Kvasz/M. Stöltzner (Hgg.), Appraising Lakatos: Mathematics, Methodology and the Man, Kluwer: Dordrecht 2002, 189–210 ER -