@phdthesis{18169,
  abstract     = {{Die Implementierung von Algorithmen zur Lösung geometrischer Probleme im Euklidischen Raum (z.B. Berechnung der konvexen Hülle oder des Durchschnitts zweier Polyeder) stellt sich oftmals als hochgradig nichttrivial heraus. Ob und unter welchen Voraussetzungen die verursachenden numerischen Instabilitäten überhaupt ini den Griff zu kriegen oder vielmehr dem Problem inhärent sind, untersucht diese Arbeit in einem auf Turing zurückgehenden Rechenmodell. Im Gegensatz zu algebraischen Ansätzen geht jenes nicht von der Verfügbarkeit exakter Tests auf z.B. Gleichheit reeller Zahlen aus, sondern berücksichtigt die auf Digitalcomputern tatsächlich realisierbare Approximation durch rationale Zahlen. In diesem Rahmen werden beweisbar stabile Algorithmen zum Lösen linearer Gleichungssysteme, zur Matrix-Diagonalisierung und zur linearen wie nichtlinearen Optimierung präsentiert. Als wichtiges technisches Hilfsmittel dient ein neuer Berechenbarkeitsbegriff für reguläre unendliche Mengen reller Zahlen, der sich aus dem systematischen Vergleich verschiedener der Literatur entnommener ad-hoc Ansätze ergibt.}},
  author       = {{Ziegler, Martin}},
  isbn         = {{3-935433-24-7}},
  publisher    = {{Verlagsschriftenreihe des Heinz Nixdorf Instituts, Paderborn}},
  title        = {{{Zur Berechenbarkeit reeller geometrischer Probleme}}},
  volume       = {{115}},
  year         = {{2002}},
}

@inproceedings{8928,
  author       = {{Panning, Lars and Sextro, Walter and Popp, Karl}},
  booktitle    = {{Proceedings of ASME TURBO Expo, Power for Land, Sea, and Air}},
  number       = {{GT- 2002-30429}},
  title        = {{{Optimization of the Contact Geometry between Turbine Blades and Underplatform Dampers with respect to Friction Damping}}},
  year         = {{2002}},
}

@inproceedings{8146,
  author       = {{Rosa, L. P. and Krauter, Stefan and Nascimento, J. L.  and Sampaio, M. and Silva, N. F.  and Araújo, M. P.  and Petersen, R. C.}},
  booktitle    = {{IX Congresso Brasileiro de Energia, Rio de Janeiro (Brasilien), 21.–22. Mai 2002, Band 4, S. 1780–1785.}},
  title        = {{{O Laboratório de Fontes Alternativas de Energia da UFRJ – LAFAE (Labor für alternative Energiequellen an der UFRJ)}}},
  year         = {{2002}},
}

@inproceedings{5620,
  abstract     = {{Bei der Online-Marktforschung lässt sich mit Hilfe virtueller 3D-Welten das Konsumentenverhalten beobachten. Da die Struktur der dabei anfallenden Daten multidimensional ist und die marktforschungsrelevanten Anfragen eine hohe OLAP-Affinität aufweisen, wurde hierzu im Rahmen des Forschungsprojekts Benevit ein Data Warehouse konzipiert und realisiert. Im Rahmen einer Standardisierung der Protokollierung von Konsumentenaktivitäten und deren prototypischen Realisierung erwies sich der Data Warehouse/OLAP-Ansatz zur Speicherung, Analyse und Präsentation der Marktforschungsdaten als adäquates Instrumentenbündel.}},
  author       = {{Schryen, Guido and Schoenen, Markus}},
  booktitle    = {{Data Warehousing 2002}},
  pages        = {{103--119}},
  title        = {{{Data Warehouse in der Marktforschung - Analyse von Benutzeraktivitäten in virtuellen Welten}}},
  year         = {{2002}},
}

@inproceedings{16888,
  author       = {{Goetz, F. and Domik, Gitta}},
  booktitle    = {{Informatiktage 2002}},
  title        = {{{x3Dogl: ein auf XML basierendes Web3D-System zur Darstellung interaktiver 3D-Szenen }}},
  year         = {{2002}},
}

@article{27931,
  author       = {{Bigga, Regine and Schack, Pirjo Susanne}},
  journal      = {{Haushalt & Bildung}},
  number       = {{4}},
  pages        = {{41--52}},
  title        = {{{Darstellung und Bewertung von Online und Offline Medien unter dem Gesichtspunkt nachhaltiger Ernährungsstile. Lehren und Lernen im haushaltsbezogenen Unterricht.}}},
  volume       = {{79}},
  year         = {{2002}},
}

@inproceedings{39370,
  abstract     = {{Within this paper we propose architecture ideas of a distributed Video on Demand network which base on peer to peer technology. Each peer offers video streams to other peers and may receive a video stream from another peer simultaneously. This results in an optimization problem depending on different factors which we approximate with the help of an simulation environment. Our approach bases on a peer to peer framework by Sun called Project JXTA which provides a set of protocols for P2P applications.}},
  author       = {{Loeser, Chris and Altenbernd, Peter and Ditze, Michael and Müller, Wolfgang}},
  booktitle    = {{Proceedings of the Intl. Workshop on Real-Time LANs in the Internet Age (RTLIA 2002)}},
  title        = {{{Distributed Video-on-Demand Services on Peer to Peer Basis}}},
  year         = {{2002}},
}

@inproceedings{39398,
  abstract     = {{This article presents a UML profile for an OCL extension that enables modelers to specify behavioral, state-oriented real-time constraints in OCL. In order to perform a seamless integration into the upcoming UML2.0 standard, we take the latest OCL2.0 metamodel proposal by Warmer et al. [22] as a basis. A formal semantics of our temporal OCL extension is given by a mapping to time-annotated temporal logics formulae. To give an example of the applicability of our extension, we consider a modeling approach for manufacturing systems called MFERT. We present a corresponding UML profile for that approach and combine both profiles for formal verification by real-time model checking.}},
  author       = {{Flake, Stephan and Müller, Wolfgang}},
  booktitle    = {{Proceedings of the UML 2002 - The Unified Modeling Language}},
  publisher    = {{Springer-Verlag}},
  title        = {{{A UML Profile for Real-Time Constraints with the OCL}}},
  year         = {{2002}},
}

@article{41784,
  author       = {{Fuchs, Christian}},
  journal      = {{Vorschein 22/23}},
  pages        = {{175--188}},
  title        = {{{Der Technikbegriff bei Rosa Luxemburg und seine Bedeutung für aktuelle techniksoziologische Fragen (Rosa Luxemburg’s Notion of Technology and Its Implications for Sociology of Technology)}}},
  year         = {{2002}},
}

@article{45427,
  abstract     = {{<jats:p>In this work a gradient‐based optimization method is applied in order to determine material parameters for a viscoplastic model with dynamic yield surface coupled to damage as presented in 1997. To this end a sensitivity analysis consistent with the integration scheme presented previously is performed in a systematic manner, both for strain and stress controlled experiments. The algorithm is tested in two numerical examples: first, simulated data are used, in order to re‐obtain parameters for the case of damage under monotonic loading. In the second example material parameters are obtained based on experimental data for lcf‐testing of an austenetic stainless steel, thus showing a very good agreement with respect to hardening, rate and damage effects.</jats:p>}},
  author       = {{Mahnken, Rolf and Johansson, Magnus and Runesson, Kenneth}},
  issn         = {{0264-4401}},
  journal      = {{Engineering Computations}},
  keywords     = {{Computational Theory and Mathematics, Computer Science Applications, General Engineering, Software}},
  number       = {{7}},
  pages        = {{925--955}},
  publisher    = {{Emerald}},
  title        = {{{Parameter estimation for a viscoplastic damage model using a gradient‐based optimization algorithm}}},
  doi          = {{10.1108/02644409810236920}},
  volume       = {{15}},
  year         = {{2002}},
}

@inproceedings{56570,
  author       = {{Brandt, Sebastian and Küsters, Ralf and Turhan, Anni-Yasmin}},
  booktitle    = {{Proceedings of the Eights International Conference on Principles and Knowledge Representation and Reasoning (KR-02), Toulouse, France, April 22-25, 2002}},
  editor       = {{Fensel, Dieter and Giunchiglia, Fausto and McGuinness, Deborah L. and Williams, Mary-Anne}},
  pages        = {{203–214}},
  publisher    = {{Morgan Kaufmann}},
  title        = {{{Approximation and Difference in Description Logics}}},
  year         = {{2002}},
}

@article{27973,
  author       = {{Toeller, M and Buyken, Anette and Heitkamp, G and Cathelineau, G and Ferriss, B and Michel, G and IDDM Complications Study Group, EURODIAB}},
  journal      = {{Int J Obes Relat Metab Disord}},
  number       = {{12}},
  pages        = {{1815--1822}},
  title        = {{{Nutrient intakes as predictors of body weight in European people with type 1 diabetes.}}},
  doi          = {{10.1038/sj.ijo.0801816}},
  volume       = {{25}},
  year         = {{2001}},
}

@article{27974,
  author       = {{Buyken, Anette and Toeller, M and Heitkamp, G and Karamanos, B and Rottiers, R and Muggeo, M and Fuller, JH and IDDM Complications Study Group, EURODIAB}},
  issn         = {{0002-9165}},
  journal      = {{Am J Clin Nutr}},
  number       = {{3}},
  pages        = {{574--581}},
  title        = {{{Glycemic index in the diet of European outpatients with type 1 diabetes: relations to glycated hemoglobin and serum lipids.}}},
  doi          = {{10.1093/ajcn/73.3.574}},
  volume       = {{73}},
  year         = {{2001}},
}

@inproceedings{27932,
  author       = {{Schlegel-Matthies, Kirsten}},
  booktitle    = {{Salutogenese und Ernährungsbildung. Abstracts des Workshops vom 9. und 10. März 2001}},
  title        = {{{Salutogenese und haushaltsbezogene Bildung – didaktische Folgerungen}}},
  year         = {{2001}},
}

@article{27933,
  author       = {{Schlegel-Matthies, Kirsten}},
  journal      = {{Haushalt & Bildung}},
  number       = {{4}},
  pages        = {{41--49}},
  title        = {{{Lebensstile von Jugendlichen und Umgang mit Geld. Folgerungen für haushaltsbezogene Bildung}}},
  year         = {{2001}},
}

@article{23731,
  abstract     = {{<jats:p>
            On 22 May 2000, the factorization of a pseudorandom polynomial of degree 1 048 543 over the binary field Z
            <jats:sub>2</jats:sub>
            was completed on a 4-processor Linux PC, using roughly 100 CPU-hours. The basic approach is a combination of the factorization software BIPOLAR and a parallel version of Cantor's multiplication algorithm. The PUB-library (Paderborn University BSP library) is used for the implementation of the parallel communication.
          </jats:p>}},
  author       = {{Bonorden, Olaf and von zur Gathen, Joachim and Gerhard, Jürgen and Müller, Olaf}},
  issn         = {{0163-5824}},
  journal      = {{ACM SIGSAM Bulletin}},
  pages        = {{16--18}},
  title        = {{{Factoring a binary polynomial of degree over one million}}},
  doi          = {{10.1145/504331.504333}},
  year         = {{2001}},
}

@inproceedings{18168,
  abstract     = {{We consider the classical LINEAR OPTIMIZATION Problem, but in the Turing rather than the RealRAM model. Asking for mere computability of a function's maximum over some closed domain, we show that the common presumptions 'full-dimensional' and `bounded' in fact cannot be omitted: The sound framework of Recursive Analysis enables us to rigorously prove this folkloristic observation! On the other hand, convexity of this domain may be weakened to connectedness, and even NON-linear functions turn out to be effectively optimizable.}},
  author       = {{Brattka, Vasco and Ziegler, Martin}},
  booktitle    = {{Proceedings of the 13th Canadian Conference on Computational Geometry (CCCG'01)}},
  pages        = {{181--184}},
  title        = {{{Turing Computability of (Non-)Linear Optimization}}},
  year         = {{2001}},
}

@inproceedings{18370,
  abstract     = {{We present a new approximate occlusion-culling algorithm that in contrast to other algorithms, manages the objects of the scene in a 3D-sectorgraph. For generating a frame, as far as possible only the visible objects are rendered that can be found quickly by an edge of the graph. The algorithm allows a real-time navigation with over 20 frames per second in complex scenes consisting of over 10 millions of polygons. Moreover, approximation errors are very low.}},
  author       = {{Klein, Jan and Fischer, Matthias}},
  booktitle    = {{Proc. of 3. GI-Informatiktage 2001}},
  pages        = {{275 -- 278}},
  title        = {{{Occlusion Culling for Virtual Environments based on the 3D-Sectorgraph}}},
  year         = {{2001}},
}

@inproceedings{8128,
  author       = {{Krauter, Stefan and Ochs, F. and Depping, T.}},
  booktitle    = {{Proceedings of the 17th European Photovoltaic Solar Energy Conference and Exhibition, München (Deutschland), 22.–26. Oktober 2001, Band 3, S. 2598–2599}},
  title        = {{{Satellite Monitoring of Remote PV-Systems}}},
  year         = {{2001}},
}

@inproceedings{8129,
  author       = {{Ochs, F. and Krauter, Stefan}},
  booktitle    = {{Proceedings of the 17th European Photovoltaic Solar Energy Conference and Exhibition, München (Deutschland), 22.–26. Oktober 2001, Band 3, S. 2595–2597}},
  title        = {{{Development of an All-in-one Solar Home System}}},
  year         = {{2001}},
}