TY - JOUR A1 - Krause, Gregor A1 - Göttlich, S. A1 - Möller, K. A1 - Meurer, D. T1 - Space Charge Phenomena in Partially Crystalline Polymers: On-Line Measurement of Charge Carrier Motion under High AC-Field Strength / G. Krause, S. Göttlich, K. Möller, D. Meurer JF - Proceedings of the 3rd International Conference on Conduction and Breakdown in Solid Dielectrics : Trondheim, Norway ... 1989 Y1 - 1989 N1 - International Conference on Conduction and Breakdown in Solid Dielectrics <3, 1989, Trondheim> PB - IEEE CY - Piscataway, N.J. ER - TY - JOUR A1 - Krause, Gregor A1 - Neubert, R. A1 - Pietsch, R. T1 - Investigations of Electrical Aging in Polymers under High AC-Field Strength JF - 1990 annual report : October 28 - October 31, 1990 / sponsored by the IEEE Dielectrics and Electrical Insulation Society Y1 - 1990 N1 - Conference on Electrical Insulation and Dielectric Phenomena ; (59, 1990, Pocono Manor, Pa.) PB - IEEE Service Center CY - Piscataway, N.J ER - TY - JOUR A1 - Krause, Gregor T1 - High Field Phenomena of Polymeric Insulation Investigated at PE Needle-Plane Specimen JF - Seventh International Symposium on High Voltage Engineering : Dresden, August 26 - 30, 1991 / Technische Universität Dresden Y1 - 1991 N1 - International Symposium on High Voltage Engineering ; (7, 1991, Dresden); International Symposium on High Voltage Engineering (ISH) ; (7 : ; 1991.08.26-30 : ; Dresden) PB - TU Dresden CY - Dresden ER - TY - JOUR A1 - Kämper, Klaus-Peter A1 - Kurzawa, R. A1 - Schmitt, W. A1 - Güntherodt, G. T1 - Spin-resolved photoemission study of in situ grown epitaxial Fe layers on W(110). Kurzawa, R.; Kämper, K.-P.; Schmitt, W.; Güntherodt, G. JF - Solid State Communications. 60 (1986), H. 10 Y1 - 1986 SN - 0038-1098 SP - 777 EP - 780 ER - TY - JOUR A1 - Siepmann, Thomas A1 - Rupietta, D. T1 - Closer to the customer with computerized product support JF - Technische Mitteilungen Krupp (1993) Y1 - 1993 CY - Essen ER - TY - JOUR A1 - Siepmann, Thomas A1 - Schuh, G. A1 - Levering, V. T1 - PROPLAN / Schuh, G.; Siepmann, Th.; Levering, V. JF - Handbook on architectures of information systems : with 24 tables / Peter Bernus ... (ed.) Y1 - 1998 SN - 3-540-64453-9 N1 - International handbooks on information systems ; 1 PB - Springer CY - Berlin [u.a.] ER - TY - BOOK A1 - Siepmann, Thomas T1 - Modeller for Value Systems Y1 - 1997 PB - Erasmus Universiteit Rotterdam CY - Rotterdam ER - TY - JOUR A1 - Siepmann, Thomas T1 - Exploitation Plan of the TELEflow Project Y1 - 1999 N1 - 4th Framework Programme Report CY - Brussels ER - TY - BOOK A1 - Benkner, Thorsten A1 - David, Klaus T1 - Digital Mobile Radio Systems (Nicht erschienen?) Y1 - 2005 SN - 0-471-97591-5 N1 - Erscheinungstermin 30.10.2005 PB - Wiley ER - TY - JOUR A1 - Hagemann, Hans-Jürgen A1 - Bachmann, P.K. A1 - Lade, H. A1 - Leers, D. T1 - CVD Diamond Growth: Gas Compositions and Film Properties / P.K. Bachmann, H.J. Hagemann, H. Lade, D. Leers, D.U. Wiechert and H. Wilson JF - Advanced materials '94 : proceedings of the NIRIM International Symposium on Advanced Materials '94, Tsukuba, Japan, March 13 - 17, 1994 / National Institute for Research in Inorganic Materials. Ed. by M. Kamo ... Y1 - 1994 N1 - NIRIM International Symposium on Advanced Materials ; 1994 (Tsukuba) : 1994.03.13-17 SP - 115 EP - 120 PB - International Communications Specialists CY - Tokyo ER - TY - JOUR A1 - Hagemann, Hans-Jürgen A1 - Bachmann, P.K. A1 - Lade, H. A1 - Leers, D. T1 - Diamond chemical vapor deposition: gas compositions and film properties / Bachmann, P.K.; Hagemann, H.-J.; Lade, H; Leers, D.; Picht, F.; Wiechert, D.U.; Wilson, H. JF - Diamond, SiC and nitride wide bandgap semiconductors : symposium held April 4 - 8, 1994, San Francisco, California, U.S.A. / ed.: Calvin H. Carter, Jr. ... Y1 - 1994 SN - 1-55899-239-1 N1 - Materials Research Society symposium proceedings ; 339 SP - 267 EP - 277 CY - Pittsburgh, Penn. ER - TY - JOUR A1 - Kämper, Klaus-Peter A1 - Berg, U. A1 - Begemann, M. A1 - Hagemann, B. (u.a.) T1 - Series production and testing of a micro motor. Serienfertigung und Prüfung eines Mikromotors JF - Actuator 98 : 6th International Conference on New Actuators ; 17 - 19 June, 1998, Bremen, Germany ; conference proceedings / ed.: Hubert Borgmann ... Y1 - 1998 SN - 3-933339-00-6 N1 - Konferenz-Einzelbericht: ACTUATOR, Internat. Conf. on New Actuators SP - 552 EP - 555 PB - Messe Bremen CY - Bremen ER - TY - JOUR A1 - Kämper, Klaus-Peter A1 - Döpper, J. A1 - Clemens, M. A1 - Ehrfeld, W. T1 - Micro gear pumps for dosing of viscous fluids. / Döpper, J. (u.a.) JF - Journal of Micromechanics and Microengineering. 7 (1997), H. 3 Y1 - 1997 SN - 0960-1317 SP - 230 EP - 232 ER - TY - JOUR A1 - Kämper, Klaus-Peter A1 - Lehr, H. A1 - Abel, S. A1 - Döpper, J. T1 - Microactuators as driving units for microrobotic systems. Herstellung von Mikroaktoren mit dem LIGA-Verfahren für Mikroroboter / Lehr, H.; Abel, S.; Döpper, J.; Ehrfeld, W.; Hagemann, B.; Kämper, K.-P.; Michel, F.; Schulu, c.; Thürigen, C. JF - Proceedings of the SPIE - The International Society for Optical Engineering Y1 - 1996 SN - 0277-786X N1 - Konferenz-Einzelbericht. SP - 202 EP - 210 ER - TY - JOUR A1 - Kämper, Klaus-Peter T1 - Development of low-cost injection moulded micropumps. Entwicklung von kostengünstigen, mittels Spritzguß hergestellten Mikropumpen / Döpper, J. (u.a.) JF - Actuator 96 : Conference Proceedings ; 5th International Conference on New Actuators ; 26- 28 June, Bremen, Germany / Ed.: Hubert Borgmann. Publ. by: AXON Technology Consult GmbH Y1 - 1996 N1 - Konferenz-Einzelbericht: ACTUATOR, Internat. Conf. on New Actuators, 5 SP - 37 EP - 40 CY - Bremen ER - TY - JOUR A1 - Heuermann, Holger A1 - Sadeghfam, Arash T1 - Novel balanced inductor for compact differential systems / Sadeghfam, Arash; Heuermann, Holger JF - Conference proceedings : Tuesday 12th, Wednesday 13th and Thursday 14th October, [RAI International Exhibition and Congress Centre, Amsterdam ; part of European Microwave Week 2004] / EuMA, European Microwave Association Y1 - 2004 SN - 1-580-53992-0 N1 - European Microwave Conference ; (34, 2004, Amsterdam) ; European Microwave Week ; (7, 2004, Amsterdam) SP - 709 EP - 712 PB - Horizon House Publ. CY - London ER - TY - JOUR A1 - Samm, Doris A1 - Faissner, H. A1 - Frenzel, E. A1 - Heinrigs, W. T1 - Limit on axion decay into an electron pair / H. Faissner, E. Frenzel, W. Heinrigs, A. Preussger, D. Samm und U. Samm JF - Physics Letters B. Vol. 96 (1980), H. Issues 1-2 Y1 - 1980 SP - 201 EP - 205 ER - TY - JOUR A1 - Samm, Doris A1 - Faissner, H. A1 - Frenzel, E. A1 - Heinrigs, W. T1 - Observation of the two-photon decay of a light penetrating particle / H. Faissner, E. Frenzel, W. Heinrigs, A. Preussger, D. Samm und U. Samm JF - Physics Letters B. Vol. 103 (1980), H. Issues 3 Y1 - 1980 SP - 234 EP - 240 ER - TY - BOOK A1 - Samm, Doris A1 - Faissner, H. A1 - Henrigs, W. A1 - Preussger, A. T1 - Further evidence for the radiative decay of a light, penetrating particle / Faissner, H. ; Heinrigs, W. ; Preussger, A. ; Samm, D. Y1 - 1982 N1 - Also published in INIS-mf--9311 PB - Technische Hochschule CY - Aachen ER - TY - JOUR A1 - Samm, Doris A1 - Faissner, H. A1 - Heinrigs, W. A1 - Preussger, A. T1 - Search for the two-photon decay of a light penetrating particle from a 590 MeV proton beam dump / Faissner, H.; Heinrigs, W.; Preussger, A.; Reitz, J.; Samm, D. [u.a.] JF - Zeitschrift für Physik, C Particles and Fields. 44 (1989), H. 4 Y1 - 1989 SP - 557 EP - 566 ER - TY - JOUR A1 - Kämper, Klaus-Peter A1 - Picard, Antoni A1 - Brill, Manfred A1 - Cassel, Detlef (u.a.) T1 - The Virtual Cleanroom – a new tool in teaching MST process technologies JF - mst news International newsletter on micro - nano Integration (2003) Y1 - 2003 SN - 0948-3128 SP - 35 EP - 36 ER - TY - JOUR A1 - Samm, Doris A1 - Bosetti, P.-C. T1 - Testmessungen an einem grossflaechigen (Durchmesser 35 cm) Photomultiplier Test measurements of a large-area (diameter 35 cm) photomultiplier / Bosetti, P.-C.; ... Samm, D. [u.a.] JF - Verhandlungen der Deutschen Physikalischen Gesellschaft. 25 (1990), H. 1 Y1 - 1990 N1 - Fruehjahrstagung des Fachausschusses Teilchenphysik der Deutschen Physikalischen Gesellschaft e.V. (DPG), Hamburg (Germany), 21-24 Mar 1990 SP - 33 EP - 33 ER - TY - JOUR A1 - Samm, Doris A1 - Bosetti, P.-C. T1 - DUMAND und die Suche nach extraterrestrischen Neutrinos / DUMAND and the search for extraterrestrial neutrinos / Bosetti, P.-C.; ... Samm, D. [u.a.] JF - Verhandlungen der Deutschen Physikalischen Gesellschaft. 25 (1990), H. 1 Y1 - 1990 N1 - Fruehjahrstagung des Fachausschusses Teilchenphysik der Deutschen Physikalischen Gesellschaft e.V. (DPG), Hamburg (Germany), 21-24 Mar 1990 SP - 88 EP - 88 ER - TY - JOUR A1 - Samm, Doris A1 - Faissner, H. A1 - Göttlicher, P. A1 - Matela, H. T1 - Search for scalar and pseudoscalar bosons emitted in nuclear decays via their interactions / Faissner, H.; Goettlicher, P. ; Matela, H. ; Samm, D. JF - Zeitschrift für Physik A Hadrons and Nuclei. 341 (1992), H. 3 Y1 - 1992 SP - 359 EP - 364 ER - TY - JOUR A1 - Samm, Doris A1 - Faissner, H. A1 - Moers, T. A1 - Priem, R. T1 - Modular wall-less drift chamber for muon detection at the LHC / H. Faissner, Th. Moers, R. Priem, ... , D. Samm [u.a.] JF - Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 330 (1993), H. 1-2 Y1 - 1993 SP - 76 EP - 82 ER - TY - JOUR A1 - Samm, Doris T1 - DUMAND and the search for high energy neutrino point sources / Samm, Doris [u.a.] JF - Trends in astroparticle physics / ed. by Peter Christian Bosetti Y1 - 1994 SN - 3-8154-3017-8 N1 - (Teubner-Texte zur Physik; Bd. 28); International Conference on Trends in Astroparticle-Physics ; (2 : ; SP - 9 EP - 20 PB - Teubner CY - Stuttgart ER - TY - JOUR A1 - Fredebeul-Krein, Markus T1 - The case for a more binding WTO agreement on regulatory principles in telecommunication markets JF - Telecommunications policy. vol. 23 (1999), H. afl. 9 Y1 - 1999 SN - 0308-5961 SP - 625 EP - 644 ER - TY - JOUR A1 - Fredebeul-Krein, Markus T1 - Telecommunications and WTO discipline : an assessment of the WTO agreement on telecommunication services JF - Telecommunications policy. 21 (1997), H. 6 Y1 - 1997 SN - 0308-5961 SP - 477 EP - 491 ER - TY - CHAP A1 - Kern, Alexander A1 - Krichel, Frank A1 - Müller, Klaus-Peter T1 - Lightning protection design of a renewable energy hybrid-system without power mains connection N2 - In the year 2000 a direct lightning strike to the hybridsystem without power mains connection VATALI on the Greek island Crete results in the destruction and damage of some mechanical and electrical components. The hybrid-system VATALI was not lightning protected at that time. The hardware damage costs are approx. 60,000 €. The exposed site of the hybrid-system on top of a mountain was and still is the reason for a high risk of lightning strikes. Also in the future further lightning strikes have to be taken into consideration. In the paper a fundamental lightning protection design concept for renewable energy hybrid-systems without power mains connection and protection measures against direct strikes and overvoltages are shown in detail. The design concept was realized exemplarily for the hybrid-system VATALI. The hardware costs for the protection measures were about 15,000 €. About 50% of the costs are due to protection measures against direct strikes, 50% are due to overvoltage protection. Future extensions, new installations, or modifications have to be included into the lightning protection design concept of the hybrid-system. KW - Blitzschutz KW - Erneuerbare Energien KW - Hybridsystem KW - Lightning protection KW - Renewable energy KW - hybrid-system Y1 - 2001 ER - TY - CHAP A1 - Zischank, Wolfgang J. A1 - Kern, Alexander A1 - Frentzel, Ralf A1 - Heidler, Fridolin A1 - Seevers, M. T1 - Assessment of the lightning transient coupling to control cables interconnecting structures in large industrial facilities and power plants N2 - Large industrial facilities and power plants often require a huge number fo information and control cables between the differnet structures. These I&C-cables can be routed in reinforced concrete cable ducts or in isolated buried cable runs. KTA 2206 is the German lightning protection standard for nuclear power plants. During the last several years considerable effort has been made to revise this standard. Despite the well established principles and design guidelines for the construction of the lightning protection system, this standard puts special emphasis on the coupling of transient overvoltages to I&C-cables. KW - Blitzschutz KW - Elektromagnetische Kopplung KW - Überspannung KW - Kraftwerke KW - Industrieanlagen KW - Lightning KW - current distribution KW - electromagnetic coupling KW - overvoltages Y1 - 2000 ER - TY - CHAP A1 - Fredebeul-Krein, Markus T1 - Time for revision: The regulation of Germany's next generation networks in the light of new economic and technological challenges on telecom markets : Presentation for the 18th Biennial conference of the International Telecommunications Society, June 24–27, 2008 Montreal, Canada N2 - On 1st January 1998, the German telecom market was fully liberalised. Since then genuine competition between market participants has developed, based on a comprehensive legal and regulatory framework that provides for safeguards against unfair competition and market power by Deutsche Telekom. Today, about 10 years after the liberalisation of the telecommunications sector a revision of this regulatory approach has become necessary because at least on three dimensions the situation is quite different from the one 10 years ago: First, with numerous established alternative operators in the market monopolies have been successfully challenged and competition introduced. Second, not only is Cable TV becoming in large parts of Germany a viable alternative for the provision of broadband services but also mobile services are becoming increasingly a substitute for fixed services. Last but not least there are important technological changes under way, requiring huge investments in infrastructure upgrades for next generation networks. In the light of these new developments the question is to which extent the current regulatory approach of severe ex-ante regulatory intervention is still appropriate. Is any part of the network of the former incumbent still a bottleneck? A more light handed regulatory approach might be the right response to this new situation. The paper is organised as follows: The first section will briefly examine the economic rationale for regulating network access. Based on the assumption that regulation is always necessary when bottlenecks exist regulatory principles for an efficient network access regime will be derived. The second section compares the situation of the German market in early 1998 with the one of today. Thereby three dimensions will be considered: the degree of competition, the potential for substitution and technological developments. The third section will define some requirements for the future regulation of telecom markets. Proposals will be elaborated how to ensure competitive telecom markets in the light of new economic and technological challenges. KW - Telekommunikationsmarkt KW - Telekommunikationsmarkt Y1 - 2008 ER - TY - CHAP A1 - Fredebeul-Krein, Markus A1 - Haunert, Martina T1 - Assessing the effectiveness of price cap regimes for the regulation of fixed telephony markets: has it been successful in achieving competition? : preliminary draft / by Markus Fredebeul-Krein and Martina Haunert. 19th European Regional ITS Conference of the International Telecommunications Society, September 17–19, 2008 Rome, Italy N2 - 1. Introduction 2. Tariff regulation, rebalancing and price caps 3. Price cap regimes in selected European countries 4. Has price cap regulation been successful? 5. Regulatory implications for other countries KW - Telekommunikationsmarkt KW - Telekommunikationsmarkt Y1 - 2008 ER - TY - CHAP A1 - Fredebeul-Krein, Markus T1 - Developing competitive broadband markets: Lessons learnt from German and European regulatory approaches on broad-band access N2 - A key feature of future broadband markets will be diversity of access technologies, meaning that numerous technologies will be exploited for broadband communication. Various factors will affect the success of these future broadband markets, the regulatory policy being one amongst others. So far, a coherent regulatory approach does not exist as to broadband markets. First results of policies so far suggest that less sector-specific regulation is likely to occur. Instead, regulators must ensure that access to networks and services of potentially dominant providers in a relevant broadband market will satisfy requirements for openness and non-discrimination. In this environment the future challenge of regulationg broadband markets will be to set the right incentives for investment into new infrastructures. This paper examines whether there is a need for the regulation of future broadband access markets an if yes, what is the appropriate regulatory tool to do so. Thereby the focus is on the analysis of European broadband markets and the regulatory approaches applied. The first section provides a description of the characteristics of future broadband markets. The second section discusses possible bottlenecks on broadband markets an their regulatory implications. The third section will examine regulatory issues concerning access to broadband networks in more detail. This will be done by comparing the regulatory approaches of European countries and the results in terms of bradband penetration. The final section will give key recommendations for a regulatory strategy on brandband access markets. KW - Telekommunikationsmarkt KW - Telekommunikationsmarkt Y1 - 2006 N1 - paper presented at 16th Biennial conference of the International Telecommunications Society. Information Communication Technology: Opportunities and Challenges for Telecommunications. June 12-16, 2006 Beijing, China. ER - TY - CHAP A1 - Merten, Sabine A1 - Conrad, Thorsten A1 - Kämper, Klaus-Peter A1 - Picard, Antoni A1 - Schütze, Andreas T1 - Virtual Technology Labs - an efficient tool for the preparation of hands-on-MEMS-courses in training foundries N2 - Hands-on-training in high technology areas is usually limited due to the high cost for lab infrastructure and equipment. One specific example is the field of MEMS, where investment and upkeep of clean rooms with microtechnology equipment is either financed by production or R&D projects greatly reducing the availability for education purposes. For efficient hands-on-courses a MEMS training foundry, currently used jointly by six higher education institutions, was established at FH Kaiserslautern. In a typical one week course, students manufacture a micromachined pressure sensor including all lithography, thin film and packaging steps. This compact and yet complete program is only possible because participants learn to use the different complex machines in advance via a Virtual Training Lab (VTL). In this paper we present the concept of the MEMS training foundry and the VTL preparation together with results from a scientific evaluation of the VTL over the last three years. KW - Virtuelles Laboratorium KW - Virtuelles Labor KW - Hand-on-training KW - Virtual Technology Lab KW - MEMS ; education and training foundry Y1 - 2006 ER - TY - CHAP A1 - Weßling, Matthias T1 - Leadership Perspectives: Research Findings, Theories, Practical Experiences N2 - Leadership Perspectives: Research Findings, Theories, Practical Experiences: Results of Leadership Research and exemplarily application cases show the perspectives and consequences for leadership practice and the following requirements for executives in future. N2 - Leadership Perspectives: Research Findings, Theories, Practical Experiences: Bisherige Ergebnisse der betriebswirtschaftlichen Führungsforschung und exemplarische Anwendungsbeispiele der Führungspraxis, sowie die Schlußfolgerungen für die Perspektiven der betrieblichen Mitarbeiterführung sowie die sich daraus ergebenden Anforderungen an zukünftige Führungskräfte. KW - Leadership KW - Führung KW - Führungsansätze KW - Leadership KW - Self-Leadership KW - Leadership Approaches KW - Skill Assessment KW - Leadership Theories Y1 - 2007 ER - TY - CHAP A1 - Weßling, Matthias T1 - Motivation and Leadership - The Reiss-Profile of the 16 Basic Desires: Research results and managerial applications N2 - Recent Results of the scientific Reiss-Profile (16 basic desires) due to the concept of Prof. Dr. Steven Reiss (State University Ohio, U.S.A.), supplemented by the comparative analysis of empirical motivational profiles of european executives of various companies. N2 - Neuere Forschungsergebnisse des wissenschaftlichen Reiss-Profils der 16 Lebensmotive nach Prof. Dr. Steven Reiss (State University Ohio, U.S.A.) und die Möglichkeiten und Grenzen ihrer Umsetzung in der betrieblichen Führungspraxis unter Integration der vergleichenden Analyse und Interpretation empirisch erhobener Motivprofile einzelner europäischer Führungskräfte. KW - Motivation KW - Leadership KW - Motivation KW - Führung KW - Motivation KW - Leadership Y1 - 2007 ER - TY - CHAP A1 - Weßling, Matthias T1 - Provocative Communication in Coaching and Leadership: scientific research and managerial applications of the Provocative Communication Style N2 - Concept, scientific research and managerial applications of Provocative Coaching, according to the „Provocative Therapy“ of Prof. Dr. Frank Farrelly (University of Wisconsin, U.S.A) in terms of an application of the Provocative Communication Style in specific situations of practical leadership, especially in the role of a coach for their subordinates. N2 - Konzept, Forschungsergebnisse und Tools der sogenannten „Provocative Therapy“ nach Prof. Dr. Frank Farrelly (University of Wisconsin, U.S.A) und ihre Anwendung als provokativer Kommunikationsstil einer Führungskraft in spezifischen Situationen der betrieblichen Führungspraxis in der Rolle eines Coaches. KW - Kommunikation KW - Coaching KW - Führung KW - Kommunikation KW - Coaching KW - Führung KW - Provokativer Stil KW - Provocative Coaching KW - Leadership KW - Communication KW - Provocative Style Y1 - 2007 ER - TY - GEN A1 - Kämper, Klaus-Peter T1 - Lecture notes Sensors and Actuators N2 - Kennwortgeschützter Zugang nur für Studierende bei Prof. Dr. Klaus-Peter Kämper. Wintersemester 2007/2008. Version vom 30.08.2007. 472 Seiten (pdf-Format) N2 - Password necessarily. Access only for Students by Prof. Dr. Klaus-Peter Kämper. Winter semester 2007/2008. Version 2007-08-30. 472 pages (pdf) Contents 1. Introduction 2. Introduction to Sensors 3. Introduction to Microfabrication 4. Pressure Sensors 5. Acceleration Sensors 6. Angular Rate Sensors 7. Position Sensors 8. Flow Sensors 9. Piezoelectric Actuators 10. Magnetostrictive Actuators 11. Actuators based on Shape Memory Alloys 12. Actuators based on Electrorheological Fluids 13. Actuators based on Magnetorheological Fluids KW - Sensor KW - Aktor KW - Sensoren KW - Aktoren KW - Sensores KW - Actuators KW - Microfabrication Y1 - 2007 ER - TY - CHAP A1 - Fredebeul-Krein, Markus T1 - 10 years of liberalised telecom markets in Germany: Assessing the degree of competition on the markets for voice telephony N2 - Market data for the German telecom market shows that Deutsche Telekom as the former incumbent is constantly loosing shares on all arkets for voice telephony: the market for local calls, the market for long-distance calls and the market for international calls. At the same time prices decline steadily with the latest trend being that operators offer voice services free of charge, the costs of which are covered by a monthly subscription charge. Against this background the paper examines the state of policy and regulatory reform in the telecommunications sector in Germany almost 10 years after the liberalisation of the fixed telecommunications market. Thereby the focus is on the analysis of the competitive conditions that have been established on the German market for voice telephony services. If these retail markets are competitive, there might be a need to remove remaining regulatory provisions. In the new environment of converging markets the future challenge of regulating fixed telecom markets might be to ensure that access to the network and/or services of a potentially dominant provider in a relevant market will satisfy requirements for openness and non-discrimination. KW - Telekommunikationsmarkt KW - Telekommunikationsmarkt Y1 - 2007 N1 - paper presented at 18th European Regional ITS Conference of the International Telecommunications Society, September 2-4, 2007 Istanbul, Turkey ER - TY - CHAP A1 - Heitzer, M. A1 - Staat, Manfred T1 - Direct FEM approach to design-by-analysis of pressurized components N2 - Abstracts of the ACHEMA 2000 - International Meeting on Chemical Engineering, Environmental Protection and Biotechnology, May 22 - 27, 2000. Frankfurt am Main. Achema 2000 : special edition / Linde. [Ed.: Linde AG. Red.: Volker R. Leski]. - Wiesbaden : Linde AG, 2000. - 56 p. : Ill., . - pp: 79 - 81 N2 - Abstracts der ACHEMA 2000 - International Meeting on Chemical Engineering, Environmental Protection and Biotechnology, May 22 - 27, 2000. Frankfurt am Main. KW - Finite-Elemente-Methode KW - Finite-Elemente-Methode KW - limit analysis KW - shakedown analysis Y1 - 2000 ER - TY - JOUR A1 - Baroud, G. A1 - Wu, J.Z. A1 - Bohner, M A1 - Sponagel, Stefan A1 - Steffen, T. T1 - How to determine the permeability for cement infiltration into osteoporotic cancellous bone JF - Medical Engineering & Physics. 25 (2003), H. 4 N2 - Cement augmentation is an emerging surgical procedure in which bone cement is used to infiltrate and reinforce osteoporotic vertebrae. Although this infiltration procedure has been widely applied, it is performed empirically and little is known about the flow characteristics of cement during the injection process. We present a theoretical and experimental approach to investigate the intertrabecular bone permeability during the infiltration procedure. The cement permeability was considered to be dependent on time, bone porosity, and cement viscosity in our analysis. In order to determine the time-dependent permeability, ten cancellous bone cores were harvested from osteoporotic vertebrae, infiltrated with acrylic cement at a constant flow rate, and the pressure drop across the cores during the infiltration was measured. The viscosity dependence of the permeability was determined based on published experimental data. The theoretical model for the permeability as a function of bone porosity and time was then fit to the testing data. Our findings suggest that the intertrabecular bone permeability depends strongly on time. For instance, the initial permeability (60.89 mm4/N.s) reduced to approximately 63% of its original value within 18 seconds. This study is the first to analyze cement flow through osteoporotic bone. The theoretical and experimental models provided in this paper are generic. Thus, they can be used to systematically study and optimize the infiltration process for clinical practice. KW - Osteoporose KW - Permeabilität KW - Viskose Strömung KW - Viskosität KW - Vertebroplastie KW - Cement infiltration KW - Vertebroplasty KW - Osteoporosis KW - Permeability KW - Experiment KW - Analysis KW - Viscous flow Y1 - 2003 SN - 1350-4533 SP - 283 EP - 288 ER - TY - CHAP A1 - Brüssermann, Klaus A1 - Deuster, M. T1 - Temperature measurement to optimise the burning process N2 - One of the most important parameters in a burning chamber - in power stations, in waste to energy plants - is the temperature. This temperature is in the range of 700-1500 °C - one of the most advanced measuring methods being the acoustic pyrometry with the possibility of producing temperature mapping in one level of the burning chamber - comparable to computer tomography. The results of these measurements discussed in the presentation can be used - to fulfil the legal requirements in the FRG or in the EU - to equalise the temperature in one level of the burning chamber to optimise the steam production (better efficiency of the plant) and to minimise the production of temperature controlled flue gas components (NO, CO a. o.) - to control the SNCR-process if used. KW - Pyrometrie KW - Temperaturmessung KW - temperature measurement KW - acoustic pyrometry KW - steam production KW - flue gas components Y1 - 2005 ER - TY - CHAP A1 - Gebhardt, Andreas T1 - Technology Diffusion through a Multi-Level Technology Transfer Infrastructure. Contribution to the 1st. All Africa Technology Diffusion Conference Boksburg, South Africa June 12th - 14th 2006 N2 - Table of contents 1. Introduction 2. Multi-level Technology Transfer Infrastructure 2.1 Level 1: University Education – Encourage the Idea of becoming an Entrepreneur 2.2 Level 2: Post Graduate Education – Improve your skills and focus it on a product family. 2.3 Level 3: Birth of a Company – Focus your skills on a product and a market segment. 2.4 Level 4: Ready to stand alone – Set up your own business 2.5 Level 5: Grow to be Strong – Develop your business 2.6 Level 6: Competitive and independent – Stay innovative. 3. Samples 3.1 Sample 1: Laser Processing and Consulting Centre, LBBZ 3.2 Sample 2: Prototyping Centre, CP 4. Funding - Waste money or even lost Money? 5. Conclusion KW - Technologietransfer KW - technology transfer KW - technology diffusion Y1 - 2006 ER - TY - JOUR A1 - Gebhardt, Andreas T1 - Generative Manufacturing of Ceramic Parts "Vision Rapid Prototyping" N2 - Table of Contents Introduction 1. Generative Manufacturing Processes 2. Classification of Generative Manufacturing Processes 3. Application of Generative Processes on the Fabrication of Ceramic Parts 3.1 Extrusion 3.2 3D-Printing 3.3 Sintering – Laser Sintering 3.4 Layer-Laminate Processes 3.5 Stereolithography (sometimes written: Stereo Lithography) 4. Layer Milling 5. Conclusion - Vision KW - Rapid prototyping KW - Rapid Technologie KW - Rapid Prototyping Y1 - 2006 ER - TY - RPRT A1 - Weßling, Matthias T1 - How to deal with foreign cultures: an cross-cultural training-approach based on the didactical methodology of 'experiential learning' following Kolb & Fry N2 - Many companies still conduct the worldwide management of people as if neither the external economic nor the internal structure of the firm had changed. The costs of cross-cultural failure, for individuals and their companies, are enormous: personal and family costs; financial, professional and emotional costs; costs to one’s career prospects, to one’s self-esteem, to one’s marriage and family. This scenario describes sufficiently the reason for learning “the art of crossing cultures” (Craig Storti). To this end, this research paper describes an innovative approach of cross-cultural training, following the didactical ideas of Kolb and Fry, the so-called 'experiential learning'. N2 - Viele international agierende Unternehmen verfahren mit dem weltweiten Personalmanagement so, als wenn sich weder der ökonomische Kontext noch die internen Strukturen der Firmen geändert hätten. Die Kosten von interkulturellen Mißverständnissen und Fehlschlägen sind enorm - sowohl für alle beteiligten Personen, als auch für die betroffenen Unternehmen: hier geht es um berufliche, emotionale, soziale Kosten bis hin zu Beeinträchtigungen der Selbstwertschätzung oder auch der ehelichen Paarbeziehungen. Dieses Szenario beschreibt die Notwendigkeit, sich intensive auseinanderzusetzen mit dem, was Craig Storti "the art of crossing cultures" nennt. Vor diesem Hintergrund beschreibt das vorliegende Forschungspapier einen innovativen Ansatz für ein interkulturelles Managementtraining auf der methodischen Basis der didaktischen Idee des 'experiential learning' nach Kolb und Fry. KW - Interkulturelles Lernen KW - Kulturvergleich KW - Interkulturelles Management KW - Erfahrungsorientiertes Lernen KW - Völkerpsychologie KW - Interkulturelles Training KW - Managementtraining KW - Erfahrungslernen KW - Interkulturelles Lernen KW - Kulturvergleichende Psychologie KW - Cross-Cultural Training KW - Intercultural Awareness KW - Experiential Learning KW - Managementtraining KW - Cross-Cultural Psychology Y1 - 2009 ER - TY - JOUR A1 - Kämper, Klaus-Peter A1 - Picard, Antoni A1 - Brill, Manfred A1 - Cassel, Detlev A1 - Jentsch, Andreas A1 - Merten, Sabine A1 - Rollwa, Markus T1 - The Virtual Clean Room - a new tool in teaching MST process technologies N2 - The Virtual Clean Room - a new tool in teaching MST process technologies University education in high-technology fields like MST is not complete without intensive laboratory sessions. Students cannot fully grasp the complexity and the special problems related to the manufacturing of microsystems without a thorough hands-on experience in a MST clean room. KW - Virtuelle Maschine KW - VM KW - Mikrosystemtechnik KW - MST KW - virtual clean room Y1 - 2003 ER - TY - CHAP A1 - Wagner, Torsten A1 - Schöning, Michael Josef T1 - Preface of the Special Issue of I3S 2005 in Jülich (Germany) N2 - International Symposium on Sensor Science, I3S 2005 <3; 2005; Juelich, Germany> In: Sensors 2006, 6, 260-261 ISSN 1424-8220 KW - Biosensor KW - I3S 2005 KW - International Symposium on Sensor Science Y1 - 2006 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1365 ER - TY - CHAP A1 - Srivastava, Alok A1 - Singh, Virendra A1 - Dhand, Chetna A1 - Kaur, Manindar A1 - Singh, Tejvir A1 - Witte, Katrin A1 - Scherer, Ulrich W. T1 - Study of swift heavy ion modified conduction polymer composites for application as gas sensor N2 - A polyaniline-based conducting composite was prepared by oxidative polymerisation of aniline in a polyvinylchloride (PVC) matrix. The coherent free standing thin films of the composite were prepared by a solution casting method. The polyvinyl chloride-polyaniline composites exposed to 120 MeV ions of silicon with total ion fluence ranging from 1011 to 1013 ions/cm2, were observed to be more sensitive towards ammonia gas than the unirradiated composite. The response time of the irradiated composites was observed to be comparably shorter. We report for the first time the application of swift heavy ion modified insulating polymer conducting polymer (IPCP) composites for sensing of ammonia gas. KW - Biosensor KW - Conducing polymer KW - ammonia gas sensors KW - swift heavy ions KW - polymer composites Y1 - 2006 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1345 ER - TY - CHAP A1 - Chaiyboun, Ali A1 - Traute, Rüdiger A1 - Kiesewetter, Olaf A1 - Ahlers, Simon A1 - Müller, Gerhard A1 - Doll, Theodor T1 - Modular analytical multicomponent analysis in gas sensor arrays N2 - A multi-sensor system is a chemical sensor system which quantitatively and qualitatively records gases with a combination of cross-sensitive gas sensor arrays and pattern recognition software. This paper addresses the issue of data analysis for identification of gases in a gas sensor array. We introduce a software tool for gas sensor array configuration and simulation. It concerns thereby about a modular software package for the acquisition of data of different sensors. A signal evaluation algorithm referred to as matrix method was used specifically for the software tool. This matrix method computes the gas concentrations from the signals of a sensor array. The software tool was used for the simulation of an array of five sensors to determine gas concentration of CH4, NH3, H2, CO and C2H5OH. The results of the present simulated sensor array indicate that the software tool is capable of the following: (a) identify a gas independently of its concentration; (b) estimate the concentration of the gas, even if the system was not previously exposed to this concentration; (c) tell when a gas concentration exceeds a certain value. A gas sensor data base was build for the configuration of the software. With the data base one can create, generate and manage scenarios and source files for the simulation. With the gas sensor data base and the simulation software an on-line Web-based version was developed, with which the user can configure and simulate sensor arrays on-line. KW - Biosensor KW - Main sensitivity KW - cross sensitivity KW - matrix method KW - gas sensor array KW - modelling Y1 - 2006 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1358 ER - TY - CHAP A1 - Sakthivel, Mariappan A1 - Weppner, Werner T1 - Response behaviour of a hydrogen sensor based on ionic conducting polymer-metal interfaces prepared by the chemical reduction method N2 - A solid-state amperometric hydrogen sensor based on a protonated Nafion membrane and catalytic active electrode operating at room temperature was fabricated and tested. Ionic conducting polymer-metal electrode interfaces were prepared chemically by using the impregnation-reduction method. The polymer membrane was impregnated with tetra-ammine platinum chloride hydrate and the metal ions were subsequently reduced by using either sodium tetrahydroborate or potassium tetrahydroborate. The hydrogen sensing characteristics with air as reference gas is reported. The sensors were capable of detecting hydrogen concentrations from 10 ppm to 10% in nitrogen. The response time was in the range of 10-30 s and a stable linear current output was observed. The thin Pt films were characterized by XRD, Infrared Spectroscopy, Optical Microscopy, Atomic Force Microscopy, Scanning Electron Microscopy and EDAX. KW - Biosensor KW - Hydrogen sensor KW - amperometric sensor KW - porous Pt electrode KW - chemical reduction method Y1 - 2006 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1399 ER -