TY - BOOK
A1 - Benkner, Thorsten
A1 - Stepping, Christoph
T1 - UMTS - Universal Mobile Telecommunications System
Y1 - 2002
SN - 3-935340-07-9
PB - Schlembach
CY - Weil der Stadt
ER -
TY - JOUR
A1 - Gebhardt, Andreas
A1 - Schmidt, Frank-Michael
T1 - Practical experiences with making and finishing of coloured models using 3D printing
Y1 - 2002
N1 - International Conference on Rapid Prototyping and Manufacturing <2, 2002, Beijing>
ER -
TY - JOUR
A1 - Schulte-Zurhausen, Manfred
A1 - Poznanska, K.
T1 - Kryteria klasyfikacji malych i srednich przedsiebiorstw = Kriterien zur Klassifizierung von kleinen und mittleren Unternehmen
JF - Przeglad Organizacji (1994)
Y1 - 1994
SP - 24
EP - 27
ER -
TY - BOOK
A1 - Gebhardt, Andreas
T1 - Rapid prototyping : Werkzeug für die schnelle Produktentstehung. - 2., völlig überarb. Aufl.
Y1 - 2000
SN - 3-446-21242-6
PB - Hanser
CY - München [u.a.]
ER -
TY - BOOK
A1 - Gebhardt, Andreas
T1 - Rapid Prototyping
Y1 - 2003
SN - 3-446-21259-0
PB - Hanser
CY - Munich [u.a.]
ER -
TY - JOUR
A1 - Gebhardt, Andreas
T1 - Rapid Prototyping and PIV
Y1 - 2001
N1 - Workshop on Industrial Applications of Particle Image Velocimetry <2001, Köln>
ER -
TY - JOUR
A1 - Gebhardt, Andreas
T1 - Laserwelding with fillerwire
JF - LIA handbook of laser material processing / Laser Institute of America
Y1 - 2001
SN - 3-540-41770-2
N1 - Chapter 11.2.12
CY - Orlando, Florida
ER -
TY - JOUR
A1 - Hagemann, Hans-Jürgen
A1 - Breitschuh, S.
A1 - Graber, S.
A1 - Schmitz, Günter
T1 - Internet Laboratory Courses with Remote Access and Control of Real Measurements on Sensors and Electronic Components
JF - Mechatronics & Robotics 2004 : Aachen, Germany, September 13 - 15, 2004 / [APS - European Centre for Mechatronics]. P. Drews (ed.)
Y1 - 2004
SN - 3-938153-30-X
N1 - MechRob <2004, Aachen>
SP - 1280
EP - 1284
PB - Eysoldt
CY - Aachen
ER -
TY - JOUR
A1 - Hagemann, Hans-Jürgen
A1 - Bachmann, P. K.
A1 - Lade, H.
A1 - Leers, D.
T1 - Thermal properties of C/H-, C/H/O-, C/H/N- and C/H/X-grown polycrystalline CVD diamond. P. K. Bachmann, H. J. Hagemann, H. Lade, ...
JF - Diamond and Related Material. Vol 4. (1995), H. Issue 5-6
Y1 - 1995
N1 - abstract online:
SP - 820
EP - 826
PB - Elsevier Science
CY - New York, NY [u.a.]
ER -
TY - JOUR
A1 - Krause, Gregor
A1 - Fruth, B.
T1 - Dielectric Properties of Polyolefins Stressed by High Electrical Fields / Fruth, B. ; Krause, G.
JF - Plenary lectures and contributions presented at the International Symposium on Polymer Materials : held in San Sebastian (Donostia), Spain, 31 August - 4 September, 1987 / symposium ed. G. M. Guzmán ; A. Santamaria
Y1 - 1988
SN - 3-85739-220-7
N1 - International Symposium on Polymer Materials <1987, San Sebastián, Golfo de Vizcaya>
PB - Huethig & Wepf
CY - Basel
ER -
TY - JOUR
A1 - Krause, Gregor
A1 - Schuppe, W.D.
A1 - Saure, M.
A1 - Andress, H.
T1 - Sensitive Analytical and Physical Methods for Diagnosis of Variations in Polyolefin Plaques and Cable Insulations / W.D. Schuppe, M. Saure, H. Andress, K. Möller, D. Meurer, G. Krause
JF - Proceedings of the 32nd session : 28th August - 3rd September.
Y1 - 1988
N1 - International Conference on Large Electric Systems, CIGRÉ <32, Paris, 1988>
ER -
TY - JOUR
A1 - Krause, Gregor
A1 - Meurer, D.
A1 - Klee, D.
T1 - Space Charge Formation Related to the Morphology of Polymers
JF - ISE 6 : 6th International symposium on electrets : Papers
Y1 - 1988
N1 - International Symposium on Electrets <6, 1988, Oxford>
PB - IEEE
CY - Piscataway, NY
ER -
TY - JOUR
A1 - Krause, Gregor
A1 - Möller, K.
A1 - Meurer, D.
T1 - Dielectric phenomena in semicrystalline polymers
JF - IEEE Transaction on Electrical Insulation. Vol. 24 (1989), H. No. 2
Y1 - 1989
N1 - Digital Object Identifier 10.1109/14.90276
SP - 215
EP - 222
ER -
TY - JOUR
A1 - Krause, Gregor
A1 - Meurer, D.
A1 - Klee, D.
T1 - Space charge formation related to the morphology of polymers
JF - IEEE Transaction on Electrical Insulation. Vol. 24 (1989), H. No. 3
Y1 - 1989
N1 - Digital Object Identifier 10.1109/14.30883
SP - 215
EP - 222
ER -
TY - JOUR
A1 - Wrede, Oliver
T1 - Mnemotechnik in graphischen Benutzeroberflächen
JF - Form / Form-Diskurs : Zeitschrift für Design und Theorie. 1 (1996), H. 2
Y1 - 1996
ER -
TY - JOUR
A1 - Hagemann, Hans-Jürgen
A1 - Backhaus, U.
A1 - Goessner, S.
T1 - Collaborative eLearning Concepts for University Level Online Laboratory Courses in Engineering. U. Backhaus, S. Goessner, H. J. Hagemann
JF - Proceedings Online Educa Berlin: 8th International Conference on Technology Supported Learning & Training. 2002
Y1 - 2002
N1 - Online Educa <2002, Berlin>
SP - 62
EP - 66
ER -
TY - JOUR
A1 - Krause, Gregor
A1 - Fruth, Bernhard
T1 - Dielectric Properties of Polyolefins Stressed by High Electrical Fields. Fruth, B. ; Krause, G.
Y1 - 1987
N1 - Fifth International Symposium on High Voltage Engineering : Proceedings; Braunschweig, Stadthalle, August, 24-28, 1987 / International Symposium on High Voltage Engineering <5, 1987, Braunschweig>
ER -
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 - 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 - 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 -
TY - CHAP
A1 - Koplin, Tobias J.
A1 - Siemons, Maike
A1 - Océn-Valéntin, César
A1 - Sanders, Daniel
A1 - Simon, Ulrich
T1 - Workflow for high throughput screening of gas sensing materials
N2 - The workflow of a high throughput screening setup for the rapid identification of new and improved sensor materials is presented. The polyol method was applied to prepare nanoparticular metal oxides as base materials, which were functionalised by surface doping. Using multi-electrode substrates and high throughput impedance spectroscopy (HT-IS) a wide range of materials could be screened in a short time. Applying HT-IS in search of new selective gas sensing materials a NO2-tolerant NO sensing material with reduced sensitivities towards other test gases was identified based on iridium doped zinc oxide. Analogous behaviour was observed for iridium doped indium oxide.
KW - Biosensor
KW - High throughput experimentation
KW - gas sensor
KW - metal oxide
KW - doping
KW - impedance spectroscopy
KW - nitrogen oxides
Y1 - 2006
U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1407
ER -
TY - CHAP
A1 - Spannhake, Jan
A1 - Schulz, Olaf
A1 - Helwig, Andreas
A1 - Krenkow, Angelika
A1 - Müller, Gerhard
A1 - Doll, Theodor
T1 - High-temperature MEMS heater platforms: long-term performance of metal and semiconductor heater materials
N2 - Micromachined thermal heater platforms offer low electrical power consumption and high modulation speed, i.e. properties which are advantageous for realizing nondispersive infrared (NDIR) gas- and liquid monitoring systems. In this paper, we report on investigations on silicon-on-insulator (SOI) based infrared (IR) emitter devices heated by employing different kinds of metallic and semiconductor heater materials. Our results clearly reveal the superior high-temperature performance of semiconductor over metallic heater materials. Long-term stable emitter operation in the vicinity of 1300 K could be attained using heavily antimony-doped tin dioxide (SnO2:Sb) heater elements.
KW - Biosensor
KW - Hotplate
KW - heater metallisation
KW - high-temperature stability
KW - electro-migration
KW - doped silicon
KW - doped metal oxide
KW - antimony doped tin oxide
Y1 - 2006
U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1513
ER -
TY - CHAP
A1 - Katz, Eugenii
A1 - Willner, Itamar
T1 - Magneto-controlled quantized electron transfer to surface-confined redox units and metal nanoparticles
N2 - Hydrophobic magnetic nanoparticles (NPs) consisting of undecanoate-capped magnetite (Fe3O4, average diameter ca. 5 nm) are used to control quantized electron transfer to surface-confined redox units and metal NPs. A two-phase system consisting of an aqueous electrolyte solution and a toluene phase that includes the suspended undecanoatecapped magnetic NPs is used to control the interfacial properties of the electrode surface. The attracted magnetic NPs form a hydrophobic layer on the electrode surface resulting in the change of the mechanisms of the surface-confined electrochemical processes. A quinone-monolayer modified Au electrode demonstrates an aqueous-type of the electrochemical process (2e-+2H+ redox mechanism) for the quinone units in the absence of the hydrophobic magnetic NPs, while the attraction of the magnetic NPs to the surface results in the stepwise single-electron transfer mechanism characteristic of a dry nonaqueous medium. Also, the attraction of the hydrophobic magnetic NPs to the Au electrode surface modified with Au NPs (ca. 1.4 nm) yields a microenvironment with a low dielectric constant that results in the single-electron quantum charging of the Au NPs.
KW - Biosensor
KW - Nanoparticles
KW - magnetic particles
KW - quantum charging
KW - modified electrode
Y1 - 2006
U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1528
ER -
TY - CHAP
A1 - Pijanowska, Dorota G.
A1 - Remiszewska, Elzbieta
T1 - pH-based detection of phenylalnine by potentiometric and colorimetric methods
N2 - In this paper, methods of sample preparation for potentiometric measurement of phenylalanine are presented. Basing on the spectrophotometric measurements of phenylalanine, the concentrations of reagents of the enzymatic reaction (10 mM L-Phe, 0,4 mM NAD+, 2U L-PheDH) were determined. Then, the absorption spectrum of the reaction product, NADH, was monitored (maximum peak at 340 nm). The results obtained by the spectrophotometric method were compared with the results obtained by the colourimetry, using pH indicators. The above-mentioned two methods will be used as references for potentiometric measurements of phenylalanine concentration.
KW - Biosensor
KW - Phenylalanine determination
KW - enzymatic methods
KW - pH-based biosensing
Y1 - 2006
U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1536
ER -
TY - CHAP
A1 - Arida, Hassan A.
A1 - Kloock, Joachim P.
A1 - Schöning, Michael Josef
T1 - Novel organic membrane-based thin-film microsensors for the determination of heavy metal cations
N2 - A first step towards the fabrication and electrochemical evaluation of thin-film microsensors based on organic PVC membranes for the determination of Hg(II), Cd(II), Pb(II) and Cu(II) ions in solutions has been realised. The membrane-coating mixture used in the preparation of this new type of microsensors is incorporating PVC as supporting matrix, o-nitrophenyloctylether (o-NPOE) as solvent mediator and a recently synthesized Hg[dimethylglyoxime(phene)]2+ and Bis-(4-hydroxyacetophenone)-ethylenediamine as electroactive materials for Hg(II) and Cd(II), respectively. A set of three commercialised ionophores for Cd(II), Pb(II) and Cu(II) has been also used for comparison. Thin-film microsensors based on these membranes showed a Nernstian response of slope (26-30 mV/dec.) for the respective tested cations. The potentiometric response characteristics (linear range, pH range, detection limit and response time) are comparable with those obtained by conventional membranes as well as coated wire electrodes prepared from the same membrane. The realisation of the new organic membrane-based thin-film microsensors overcomes the problem of an insufficient selectivity of solid-state-based thinfilm sensors.
KW - Biosensor
KW - Heavy metal detection
KW - thin-film microsensors
KW - organic PVC membranes
Y1 - 2006
U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1545
ER -
TY - CHAP
A1 - Barek, Jiri
A1 - Fischer, Jan
A1 - Navratil, Tomas
A1 - Peckova, Karolina
A1 - Yosypchuk, Bogdan
T1 - Silver solid amalgam electrodes as sensors for chemical carcinogens
N2 - The applicability of differential pulse voltammetry (DPV) and adsorptive stripping voltammetry (AdSV) at a non-toxic meniscus-modified silver solid amalgam electrode (m-AgSAE) for the determination of trace amounts of genotoxic substances was demonstrated on the determination of micromolar and submicromolar concentrations of 3-nitrofluoranthene using methanol - 0.01 mol L-1 NaOH (9:1) mixture as a base electrolyte and of Ostazine Orange using 0.01 mol L-1 NaOH as a base electrolyte.
KW - Biosensor
KW - Solid amalgam electrodes
KW - voltammetry
KW - carcinogens
KW - 3-nitrofluoranthene
KW - Ostazine Orange
Y1 - 2006
U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1554
ER -
TY - CHAP
A1 - Baronas, Romas
A1 - Ivanauskas, Feliksas
A1 - Kulys, Juozas
T1 - Mathematical modeling of biosensors based on an array of enzyme microreactors
N2 - This paper presents a two-dimensional-in-space mathematical model of biosensors based on an array of enzyme microreactors immobilised on a single electrode. The modeling system acts under amperometric conditions. The microreactors were modeled by particles and by strips. The model is based on the diffusion equations containing a nonlinear term related to the Michaelis-Menten kinetics of the enzymatic reaction. The model involves three regions: an array of enzyme microreactors where enzyme reaction as well as mass transport by diffusion takes place, a diffusion limiting region where only the diffusion takes place, and a convective region, where the analyte concentration is maintained constant. Using computer simulation, the influence of the geometry of the microreactors and of the diffusion region on the biosensor response was investigated. The digital simulation was carried out using the finite difference technique.
KW - Biosensor
KW - Reaction-diffusion
KW - modeling biosensor
KW - microreactor
Y1 - 2006
U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1569
ER -
TY - CHAP
A1 - Lei, Yu
A1 - Mulchandani, Priti
A1 - Chen, Wilfred
A1 - Mulchandani, Ashok
T1 - Biosensor for direct determination of fenitrothion and EPN using recombinant Pseudomonas putida JS444 with surface expressed organophosphorus hydrolase. 1. modified clark oxygen electrode
N2 - This paper reports a first microbial biosensor for rapid and cost-effective determination of organophosphorus pesticides fenitrothion and EPN. The biosensor consisted of recombinant PNP-degrading/oxidizing bacteria Pseudomonas putida JS444 anchoring and displaying organophosphorus hydrolase (OPH) on its cell surface as biological sensing element and a dissolved oxygen electrode as the transducer. Surfaceexpressed OPH catalyzed the hydrolysis of fenitrothion and EPN to release 3-methyl-4-nitrophenol and p-nitrophenol, respectively, which were oxidized by the enzymatic machinery of Pseudomonas putida JS444 to carbon dioxide while consuming oxygen, which was measured and correlated to the concentration of organophosphates. Under the optimum operating conditions, the biosensor was able to measure as low as 277 ppb of fenitrothion and 1.6 ppm of EPN without interference from phenolic compounds and other commonly used pesticides such as carbamate pesticides, triazine herbicides and organophosphate pesticides without nitrophenyl substituent. The applicability of the biosensor to lake water was also demonstrated.
KW - Biosensor
KW - Organophosphorus
KW - fenitrothion
KW - EPN
KW - biosensor
KW - Pseudomonas putida
Y1 - 2006
U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1573
ER -
TY - CHAP
A1 - Näther, Niko
A1 - Juárez, Leon M.
A1 - Emmerich, Rüdiger
A1 - Berger, Jörg
A1 - Friedrich, Peter
A1 - Schöning, Michael Josef
T1 - Detection of hydrogen peroxide (H2O2) at exposed temperatures for industrial processes
N2 - An H2O2 sensor for the application in industrial sterilisation processes has been developed. Therefore, automated sterilisation equipment at laboratory scale has been constructed using parts from industrial sterilisation facilities. In addition, a software tool has been developed for the control of the sterilisation equipment at laboratory scale. First measurements with the developed sensor set-up as part of the sterilisation equipment have been performed and the sensor has been physically characterised by optical microscopy and SEM.
KW - Biosensor
KW - Gas sensor
KW - hydrogen peroxide
KW - sterilisation
KW - catalytic decomposition
Y1 - 2006
U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1418
ER -
TY - CHAP
A1 - Wagner, Thorsten
A1 - Kohl, Claus-Dieter
A1 - Fröba, Michael
A1 - Tiemann, Michael
T1 - Gas sensing properties of ordered mesoporous SnO2
N2 - We report on the synthesis and CO gas-sensing properties of mesoporous tin(IV) oxides (SnO2). For the synthesis cetyltrimethylammonium bromide (CTABr) was used as a structure-directing agent; the resulting SnO2 powders were applied as films to commercially available sensor substrates by drop coating. Nitrogen physisorption shows specific surface areas up to 160 m2·g-1 and mean pore diameters of about 4 nm, as verified by TEM. The film conductance was measured in dependence on the CO concentration in humid synthetic air at a constant temperature of 300 °C. The sensors show a high sensitivity at low CO concentrations and turn out to be largely insensitive towards changes in the relative humidity. We compare the materials with commercially available SnO2-based sensors.
KW - Biosensor
KW - Tin oxide
KW - sensing properties
KW - CO
KW - humidity
Y1 - 2006
U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1422
ER -
TY - CHAP
A1 - Mirmohseni, Abdolreza
A1 - Rostamizadeh, Kobra
T1 - Quartz crystal nanobalance in conjunction with principal component analysis for identification of volatile organic compounds
N2 - Quartz crystal nanobalance (QCN) sensors are considered as powerful masssensitive sensors to determine materials in the sub-nanogram level. In this study, a single piezoelectric quartz crystal nanobalance modified with polystyrene was employed to detect benzene, toluene, ethylbenzene and xylene (BTEX compounds). The frequency shift of the QCN sensor was found to be linear against the BTEX compound concentrations in the range about 1-45 mg l-1. The correlation coefficients for benzene, toluene, ethylbenzene, and xylene were 0.991, 0.9977, 0.9946 and 0.9971, respectively. The principal component analysis was also utilized to process the frequency response data of the single piezoelectric crystal at different times, considering to the different adsorption-desorption dynamics of BTEX compounds. Using principal component analysis, it was found that over 90% of the data variance could still be explained by use of two principal components (PC1 and PC2). Subsequently, the successful identification of benzene and toluene was possible through the principal component analysis of the transient responses of the polystyrene modified QCN sensor. The results showed that the polystyrene-modified QCN had favorable identification and quantification performances for the BTEX compounds.
KW - Biosensor
KW - Quartz crystal nanobalance (QCN)
KW - BTEX compounds
KW - principal component
Y1 - 2006
U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1434
ER -
TY - CHAP
A1 - Kreutz, Christian
A1 - Lörgen, Jürgen
A1 - Graewe, Boris
A1 - Bargon, Joachim
A1 - Yoshida, Mayumi
A1 - Freso, Zachary M.
A1 - Frèchet, Jean M. J.
T1 - High frequency quartz micro balances: a promising path to enhanced sensitivity of gravimetric sensors
N2 - An array of 50 MHz quartz microbalances (QMBs) coated with a dendronized polymer was used to detect small amounts of volatile organic compounds (VOCs) in the gas phase. The results were compared to those obtained with the commonly used 10 MHz QMBs. The 50 MHz QMBs proved to be a powerful tool for the detection of VOCs in the gas phase; therefore, they represent a promising alternative to the much more delicate surface acoustic wave devices (SAWs).
KW - Biosensor
KW - Quartz micro balances
KW - electronic noses dendronized polymers inverted mesa technology
Y1 - 2006
U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1445
ER -
TY - CHAP
A1 - Rabner, Arthur
A1 - Shacham, Yosi
T1 - A concept for a sensitive micro total analysis system for high throughput fluorescence imaging
N2 - This paper discusses possible methods for on-chip fluorescent imaging for integrated bio-sensors. The integration of optical and electro-optical accessories, according to suggested methods, can improve the performance of fluorescence imaging. It can boost the signal to background ratio by a few orders of magnitudes in comparison to conventional discrete setups. The methods that are present in this paper are oriented towards building reproducible arrays for high-throughput micro total analysis systems (µTAS). The first method relates to side illumination of the fluorescent material placed into microcompartments of the lab-on-chip. Its significance is in high utilization of excitation energy for low concentration of fluorescent material. The utilization of a transparent µLED chip, for the second method, allows the placement of the excitation light sources on the same optical axis with emission detector, such that the excitation and emission rays are directed controversly. The third method presents a spatial filtering of the excitation background.
KW - Biosensor
KW - Fluorescence
KW - imaging
KW - lab-on-chip
KW - fluidic
KW - lenslet array
KW - LED chip
KW - image sensor
KW - biosensor
Y1 - 2006
U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1456
ER -
TY - CHAP
A1 - Förster, Arnold
A1 - Stock, Jürgen
A1 - Montanari, Simone
A1 - Lepsa, Mihail Ion
A1 - Lüth, Hans
T1 - Fabrication and characterisation of GaAs Gunn Diode Chips for applications at 77 GHz in automotive industry
N2 - GaAs-based Gunn diodes with graded AlGaAs hot electron injector heterostructures have been developed under the special needs in automotive applications. The fabrication of the Gunn diode chips was based on total substrate removal and processing of integrated Au heat sinks. Especially, the thermal and RF behavior of the diodes have been analyzed by DC, impedance and S-parameter measurements. The electrical investigations have revealed the functionality of the hot electron injector. An optimized layer structure could fulfill the requirements in adaptive cruise control (ACC) systems at 77 GHz with typical output power between 50 and 90 mW.
KW - Biosensor
KW - Gunn diode
KW - microwave generation
KW - GaAs hot electron injector
Y1 - 2006
U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1462
ER -
TY - CHAP
A1 - Pijanowska, Dorota G.
A1 - Remiszewska, Elzbieta
A1 - Pederzolli, Cecilia
A1 - Lunelli, Lorenzo
A1 - Vendano, Michele
A1 - Canteri, Roberto
A1 - Dudzinski, Konrad
A1 - Kruk, Jerzy
A1 - Torbicz, Wladyslaw
T1 - Surface modification for microreactor fabrication
N2 - In this paper, methods of surface modification of different supports, i.e. glass and polymeric beads for enzyme immobilisation are described. The developed method of enzyme immobilisation is based on Schiff’s base formation between the amino groups on the enzyme surface and the aldehyde groups on the chemically modified surface of the supports. The surface of silicon modified by APTS and GOPS with immobilised enzyme was characterised by atomic force microscopy (AFM), time-of-flight secondary ion mass spectroscopy (ToF-SIMS) and infrared spectroscopy (FTIR). The supports with immobilised enzyme (urease) were also tested in combination with microreactors fabricated in silicon and Perspex, operating in a flow-through system. For microreactors filled with urease immobilised on glass beads (Sigma) and on polymeric beads (PAN), a very high and stable signal (pH change) was obtained. The developed method of urease immobilisation can be stated to be very effective.
KW - Biosensor
KW - Microreactors
KW - surface modification
KW - enzyme immobilisation
KW - lab-on-a-chip
Y1 - 2006
U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1480
ER -
TY - CHAP
A1 - Bukhari, Syed Faisal Ahmed
A1 - Yang, Wuqiang
T1 - Multi-interface level sensors and new development in monitoring and control of oil separators
N2 - In the oil industry, huge saving may be made if suitable multi-interface level measurement systems are employed for effectively monitoring crude oil separators and efficient control of their operation. A number of techniques, e.g. externally mounted displacers, differential pressure transmitters and capacitance rod devices, have been developed to measure the separation process with gas, oil, water and other components. Because of the unavailability of suitable multi-interface level measurement systems, oil separators are currently operated by the trial-and-error approach. In this paper some conventional techniques, which have been used for level measurement in industry, and new development are discussed.
KW - Biosensor
KW - Level sensor
KW - multi-interface measurement
KW - electrical capacitance tomography
KW - ECT
Y1 - 2006
U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1498
ER -
TY - CHAP
A1 - Tymecki, Lukasz
A1 - Glab, Stanislaw
A1 - Koncki, Robert
T1 - Miniaturized, planar ion-selective electrodes fabricated by means of thick-film technology
N2 - Various planar technologies are employed for developing solid-state sensors having low cost, small size and high reproducibility; thin- and thick-film technologies are most suitable for such productions. Screen-printing is especially suitable due to its simplicity, low-cost, high reproducibility and efficiency in large-scale production. This technology enables the deposition of a thick layer and allows precise pattern control. Moreover, this is a highly economic technology, saving large amounts of the used inks. In the course of repetitions of the film-deposition procedure there is no waste of material due to additivity of this thick-film technology. Finally, the thick films can be easily and quickly deposited on inexpensive substrates. In this contribution, thick-film ion-selective electrodes based on ionophores as well as crystalline ion-selective materials dedicated for potentiometric measurements are demonstrated. Analytical parameters of these sensors are comparable with those reported for conventional potentiometric electrodes. All mentioned thick-film strip electrodes have been totally fabricated in only one, fully automated thickfilm technology, without any additional manual, chemical or electrochemical steps. In all cases simple, inexpensive, commercially available materials, i.e. flexible, plastic substrates and easily cured polymer-based pastes were used.
KW - Biosensor
KW - Potentiometry
KW - thick-film technology
KW - screen-printing
KW - ion-selective electrodes
Y1 - 2006
U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1506
ER -
TY - CHAP
A1 - Brüssermann, Klaus
T1 - Platform of Excellence in "Energy and Environment"
N2 - The Ministry of Science and Research in North Rhine-Westphalia created eight platforms of excellence, one in the research area „Energy and Environment“ in 2002 at ACUAS. This platform concentrates the research and development of 13 professors in Jülich and Aachen and of two scientific institutes with different topics: – NOWUM-Energy with emphasis on efficient and economic energy conversion – The Solar Institute Jülich – SIJ – being the largest research institute in the field of renewables at a University of Applied Sciences in Germany With this platform each possible energy conversion – nuclear, fossil, renewable- can be dealt with to help solving the two most important problems of mankind, energy and potable water. At the CSE are presented the historical development, some research results and the combined master studies in „Energy Systems“ and „Nuclear Applications“
KW - Energietechnik
KW - Kernenergie
KW - Umwelt
KW - Energy
KW - environment
KW - Energy Systems
KW - Nuclear Applications
Y1 - 2005
ER -
TY - BOOK
A1 - Schürmann, Wilhelm
T1 - Song of joy : Kippenberger, Schürmann [Martin Kippenberger - gemalte Bilder ; Wilhelm Schürmann - fotografierte Bilder]
Y1 - 1983
N1 - Ausstellung der Neuen Galerie, Sammlung Ludwig, Aachen (10. Juni 1983 - 24. Juli 1983)
PB - Neue Galerie
CY - Aachen
ER -
TY - JOUR
A1 - Gebhardt, Andreas
T1 - Rapid Prototyping
JF - Landolt-Börnstein - Group VIII Advanced Materials and Technologies‡Vol. 1 Laser Physics and Applications‡Subvol. C Laser Applications / authors: Bäuerle, D. ...
Y1 - 2004
SN - 3-540-00105-0
SP - 105
EP - 123
PB - Heidelberg
CY - Springer
ER -
TY - JOUR
A1 - Jacobs, Stephan
A1 - Hermanns, Oliver
T1 - Cooperative Design: Requirements on Network Technology and Document Architecture
JF - Selected papers of the 6th Joint European Networking Conference / guest ed.: J. Barberá
Y1 - 1996
N1 - Joint European Networking Conference <6, 1995, Tel Aviv>; Computer networks and ISDN systems ; 28,4 : special issue
PB - Elsevier
CY - Amsterdam [u.a.]
ER -
TY - BOOK
A1 - Jacobs, Stephan
A1 - Jarke, Matthias
T1 - Requirements information management : the NATURE approach / RWTH Aachen, Fachgruppe Informatik. M. Jarke
Y1 - 1994
N1 - Aachener Informatik-Berichte ; 94-24
PB - RWTH, Fachgruppe Informatik
CY - Aachen
ER -
TY - JOUR
A1 - Jacobs, Stephan
A1 - Jarke, Matthias
A1 - Pohl, Klaus
T1 - Requirements Engineering 1993
JF - Automated software engineering : the international journal of automated reasoning and artificial intelligence in software engineering. Vol. 1 (1994), H. No. 1
Y1 - 1994
SN - 0928-8910
ER -
TY - JOUR
A1 - Jacobs, Stephan
A1 - Grob, Robert
A1 - Kethers, Stefanie
T1 - Towards CIS in Quality Management - Integration of Agents and Methods / Robert Grob, Stephan Jacobs, Stefanie Kethers
JF - Proceedings of the Second International Conference on Cooperative Information Systems : May 17 - 20, 1994, Toronto, Canada / sponsored by the University of Toronto. Editors: Michael Brodie
Y1 - 1994
N1 - International Conference on Cooperative Information Systems ; (2 : ; 1994.05.17-20 : ; Toronto)
PB - University of Toronto Press
CY - Toronto
ER -
TY - JOUR
A1 - Jacobs, Stephan
T1 - A Fault Diagnosis System Using Temporary Relations between Symptoms
JF - Operations research '93 : extended abstracts of the 18th Symposium on Operations Research held at the University of Cologne, September 1 - 3, 1993 / Achim Bachem ... (ed.)
Y1 - 1994
SN - 379080794X
N1 - Symposium on Operations Research ; (18, 1993, Köln)
PB - Physica-Verl.
CY - Heidelberg
ER -
TY - JOUR
A1 - Jacobs, Stephan
A1 - Jarke, Matthias
A1 - Pohl, Klaus
A1 - Bubenko, Janis
T1 - Requirements Engineering : An Integrated View of Representations, Process, and Domain / Jarke, Matthias ; Pohl, Klaus ; Jacobs, Stephan ; Bubenko, Janis ...
JF - Software engineering : 4th European Software Engineering Conference Garmisch-Partenkirchen, Germany, September 13 - 17, 1993 ; proceedings / ESEC '93. Ian Sommerville ... (eds.)
Y1 - 1993
SN - 3-540-57209-0
N1 - ESEC (4, 1993, Garmisch-Partenkirchen); Lecture notes in computer science ; 717
SP - 100
EP - 114
PB - Springer
CY - Berlin [u.a.]
ER -
TY - JOUR
A1 - Jacobs, Stephan
A1 - Quernheim, Ulrich
A1 - Aghadavoodi Jolfaei, Masoud
T1 - Performance Evalutation of three Access Protocols for VSAT Networks / Ulrich Quernheim, Stephan Jacobs, Masoud Aghadavoodi Jolfaei
JF - Proceedings of the second European Conference on Satellite Communications : ECSC-2 ; Palais de Congrès, Liège, Belgium, 22 - 24 October 1991 / [ed.: Brigitte Kaldeich]
Y1 - 1991
SN - 92-9092-170-6
N1 - European Conference on Satellite Communications <2, 1991, Liège>; ESA SP ; 332
PB - ESA Publ. Div.
CY - Noordwijk
ER -
TY - JOUR
A1 - Jacobs, Stephan
A1 - Quernheim, Ulrich
T1 - ARQ Error Control for Multipoint Satellite Communications / Ulrich Quernheim, Stephan Jacobs
JF - Computer networking : proceedings of the IFIP TC 6 Conference on Computer Networking, COMNET '90, Budapest, Hungary, 8-10 May, 1990 / edited by László Csaba, Tibor Szentiványi, Katie Tarnay
Y1 - 1990
SN - 0444888721
N1 - International Federation for Information Processing ; COMNET ; (1990, Budapest)
PB - Elsevier
CY - New York, N.Y.
ER -
TY - JOUR
A1 - Grap, Rolf Dietmar
T1 - Determining manpower requirements in a spinning mill
JF - Chemical fibers international : CFI ; fiber polymers, fibers, texturing, and spunbonds (2003)
Y1 - 2003
SN - 0340-3343
SP - 455
EP - 458
ER -
TY - JOUR
A1 - Jacobs, Stephan
T1 - Introducing Measurable Requirements: A Case Study
JF - Proceedings : June 7 - 11, 1999, University of Limerick, Limerick, Ireland / sponsored by IEEE Computer Society Technical Council on Software Engineering. In cooperation with ACM SIGSOFT
Y1 - 1999
SN - 0769501885
N1 - International Symposium on Requirements Engineering ; (4, 1999, Limerick)
ER -
TY - JOUR
A1 - Gebhardt, Michael
A1 - Jarke, Matthias
A1 - Jacobs, Stephan
T1 - A Toolkit for Negotiation Support Interfaces to Multidimensional Data
JF - SIGMOD 1997 : proceedings ACM SIGMOD International Conference on Management of Data, May 13 - 15, 1997, Tucson, Arizona, USA / ed. by Joan M. Peckman
Y1 - 1997
SN - 0897919114
N1 - International Conference on Management of Data ; (1997, Tucson, Ariz.)
PB - ACM Press
CY - New York, NY
ER -
TY - JOUR
A1 - Jacobs, Stephan
A1 - Gebhardt, Michael
T1 - Conflict Management in Design /
JF - Transactions from the Eighth Symposium on Quality Function Deployment : (concurrent with International Symposium on QFD 96] ; June 9 - 11, 1996, Novi, Michigan, USA / sponsored by: QFD Institute
Y1 - 1996
N1 - Symposium on Quality Function Deployment ; (8, 1996, Novi, Mich.)
PB - QFD Institute
CY - Ann Arbor, Mich.
ER -
TY - JOUR
A1 - Jacobs, Stephan
A1 - Gebhardt, Michael
A1 - Kethers, Stefanie
A1 - Rzasa, Wojtek
T1 - Filling HTML forms simultaneously: CoWeb — architecture and functionality
JF - Computer Networks and ISDN Systems. Vol. 30 (1996), H. Issues 1-7
Y1 - 1996
SN - 0376-5075
SP - 1385
EP - 1395
ER -
TY - JOUR
A1 - Jacobs, Stephan
A1 - Holten, Roland
T1 - Goal Driven Business Modelling - Supporting Decision Making within Information System Development
JF - Conference on Organizational Computing Systems : August 13 - 16, 1995, Milpitas, Calif. / general ed. Nora Comstock ...
Y1 - 1995
SN - 0-89791-706-5
N1 - Conference on Organizational Computing Systems <1995, Milpitas, Calif.>
PB - ACM
CY - New York, NY
ER -
TY - JOUR
A1 - Hagemann, Hans-Jürgen
A1 - Cassidy, Wiliam D.
T1 - Diamond growth rates and quality: dependence on gas phase cpmposition / William D. Cassidy [...], Hans-Jurgen Hagemann
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 - 285
EP - 291
CY - Pittsburgh, Penn. ,
ER -