TY  - JOUR
A1  - Förster, Arnold
A1  - Stock, J.
A1  - Indlekofer, K. M.
T1  - Perspectives of resonant tunneling diodes
JF  - Recent research developments in materials science & engineering/ 1,2
Y1  - 2002
SN  - 81-7895-057-X
N1  - Nebent.: Materials science & engineering
SP  - 527
EP  - 556
PB  - Transworld Research Network
CY  - Trivandrum, India
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Indlekofer, K.M.
A1  - Lüth, H.
T1  - Density-matrix description of a quantum dot system with variable lateral confinement in the single-electron tunneling regime. Indlekofer, K.M.; Förster, A.; Lüth, H.
JF  - Physica B: Condensed Matter. 314 (2002), H. 1-4
Y1  - 2002
SN  - 0921-4526
SP  - 499
EP  - 502
ER  - 
TY  - JOUR
A1  - Faber, Christian
A1  - Fritzsche, Ulrich
A1  - Schwarzer, Klemens
T1  - Vergleich der Ergebnisse des quasidynamischen und stationären Kollektortests nach En 12975-2 / Fritzsche, Ulrich ; Faber, Christian ; Schwarzer, Klemens
JF  - Zwölftes Symposium Thermische Solarenergie : 24. bis 26. April 2002 / [wiss. Gesamtleitung: Volker Wittwer. Veranst.: OTTI-Energie-Kolleg. Mitveranst.: Arbeitsgemeinschaft Kommunaler Versorgungsunternehmen zur Sparsamen Ernergie- und Wasserverwendung (ASEW), Köln ...]
Y1  - 2002
SN  - 3-934681-20-4
N1  - Symposium Thermische Solarenergie <12, 2002, Kloster Banz> ; Energie-Kolleg <Regensburg>
SP  - 135
EP  - 139
PB  - OTTI-Energie-Kolleg
CY  - Regensburg
ER  - 
TY  - JOUR
A1  - Müller-Veggian, Mattea
A1  - Cesari, V.
A1  - De Nardo, L.
A1  - Colautti, P.
T1  - First microdosimetric measurements with a 10b-loaded TEPC
JF  - Annual report / Istituto Nazionale di Fisica Nucleare, LNL, Laboratori Nazionali di Legnaro. 2001 (2002)
Y1  - 2002
SN  - 88-7337-002-0
N1  - LNL-INFN(REP)-182/2002
SP  - 110
EP  - 111
ER  - 
TY  - BOOK
A1  - Müller-Oestreich, Karen
T1  - Haushaltskonsolidierung in den Ländern der Europäischen Union und den Beitrittsstaaten / [Bearb.: Karen Müller-Oestreich]
Y1  - 2002
SN  - 3897370956
N1  - IFSt-Schrift ; 400
PB  - IFSt
CY  - Bonn
ER  - 
TY  - JOUR
A1  - Selmer, Thorsten
A1  - Willanzheimer, Angela
A1  - Hetzel, Marc
T1  - Propionate CoA-transferase from Clostridium propionicum. Cloning of the gene and identification of glutamate 324 at the active site
JF  - European Journal of Biochemistry. 269 (2002), H. 1
Y1  - 2002
SN  - 0014-2956
SP  - 372
EP  - 380
ER  - 
TY  - JOUR
A1  - Selmer, Thorsten
A1  - Netz, Daili Jacqueline Aguilar
A1  - Pohl, Regula
A1  - Beck-Sickinger, Annette G.
T1  - Biochemical characterisation and genetic analysis of aureocin A53, a new, atypical bacteriocin from Staphylococcus aureus / Netz, Daili Jacqueline Aguilar ; Pohl, Regula ; Beck-Sickinger, Annette G. ; Selmer, Thorsten ; Pierik, Antonio J. ;  Carmo de Frei
JF  - Journal of Molecular Biology. 319 (2002), H. 3
Y1  - 2002
SN  - 0022-2836
SP  - 745
EP  - 756
ER  - 
TY  - JOUR
A1  - Prume, Klaus
A1  - Franken, Klaus
A1  - Böttger, Ulrich
A1  - Waser, Rainer
T1  - Modelling and numerical simulation of the electrical, mechanical, and thermal coupled behaviour of Multilayer capacitors (MLCs) / Prume, Klaus ; Franken, Klaus ; Böttger, Ulrich ; Waser, Rainer ; Maier, Horst R.
JF  - Journal of the European Ceramic Society. 22 (2002), H. 8
Y1  - 2002
SN  - 0955-2219
SP  - 1285
EP  - 1296
ER  - 
TY  - JOUR
A1  - Prume, Klaus
A1  - Roelofs, Andreas
A1  - Schmitz, Thorsten
A1  - Reichenberg, Bernd
T1  - Compensation of the Parasitic Capacitance of a Scanning Force Microscope Cantilever Used for Measurements on Ferroelectric Capacitors of Submicron Size by Means of Finite Element Simulations / Prume, Klaus ; Roelofs, Andreas ; Schmitz, Thorsten ; Reichenb
JF  - Japanese Journal of Applied Physics. 41 (2002), H. 11B
Y1  - 2002
SN  - 0021-4922
SP  - 7198
EP  - 7201
ER  - 
TY  - JOUR
A1  - Knüppel, Mark
T1  - Pro-Forma-Angaben
JF  - Handbuch der Bilanzierung : das gesamte Wissen zur Rechnungslegung nach HGB, EStG und IFRS / Federmann, Rudolf ; Gnam, Arnulf ; Ammedick, Oliver
Y1  - 2002
N1  - Aktuelle Informationen in Erg.-Lfg. 122 [nicht mehr vorhanden]
SP  - 1950
EP  - 1952
PB  - Haufe
CY  - Freiburg
ER  - 
TY  - BOOK
A1  - Damrau, Karin
A1  - Pasing, Anton
T1  - Unschärferelationen : Experiment Raum = Uncertainty principles / Hrsg.: Karin Damrau; Anton Markus Pasing. [Bearb.: Bernd Wylicil. Übers.: Annette Wiethüchter]
Y1  - 2002
SN  - 3-932509-09-9
PB  - Nelte
CY  - Wiesbaden
ER  - 
TY  - BOOK
A1  - Laack, Walter van
T1  - Eine bessere Geschichte unserer Welt / Bd. 3. Der Tod
Y1  - 2002
SN  - 978-3-8311-3581-3
PB  - van Laack
CY  - Aachen
ER  - 
TY  - BOOK
A1  - Laack, Walter van
T1  - A better history of our world / Vol. 2. Life
Y1  - 2002
SN  - 978-3-8311-2597-5
N1  - [Eine bessere Geschichte unserer Welt <engl.>]
PB  - van Laack
CY  - Aachen
ER  - 
TY  - JOUR
A1  - Öhlschläger, Peter
A1  - Michel, Nico
A1  - Osen, Wolfram
A1  - Freyschmidt, Eva-Jasmin
T1  - T cell response to human papillomavirus 16 E7 in mice: comparison of Cr release assay, intracellular IFN-gamma production, ELISPOT and tetramer staining / Michel, Nico ; Öhlschläger, Peter ; Osen, Wolfram ; Freyschmidt, Eva-Jasmin ; Gutöhrlein, Heidrun ;
JF  - Intervirology. 45 (2002)
Y1  - 2002
SN  - 1423-0100
SP  - 290
EP  - 299
ER  - 
TY  - JOUR
A1  - Ferrein, Alexander
A1  - Dylla, Frank
A1  - Lakemeyer, Gerhard
T1  - Acting and Deliberating using Golog in Robotic Soccer - A Hybrid Architecture / Dylla, Frank ; Ferrein, Alexander ; Lakemeyer, Gerhard
JF  - Proc. 3rd International Cognitive Robotics Workshop (CogRob 2002)
Y1  - 2002
SP  - 1
EP  - 7
ER  - 
TY  - JOUR
A1  - Pfeiffer, Johann
T1  - Gute Chancen im Maschinenbau
JF  - Aachener Nachrichten / Aachener Zeitung : Sonderbeil. (2002)
Y1  - 2002
PB  - -
ER  - 
TY  - JOUR
A1  - Pfeiffer, Johann
T1  - Gute Chancen im Maschinenbau
JF  - Rheinische Post : Sonderbeil. (2002)
Y1  - 2002
ER  - 
TY  - JOUR
A1  - Pfeiffer, Johann
T1  - Chancen im Maschinenbau
JF  - Fachblatt :  Journal der Fachhochschule Aachen . 2002 (2002), H. 1
Y1  - 2002
SP  - 2
PB  - -
ER  - 
TY  - JOUR
A1  - Heinrich, U.
A1  - Blum, A.
A1  - Bussmann, N.
A1  - Engels, R.
A1  - Kemmerling, G.
A1  - Weber, S.
A1  - Ziemons, Karl
T1  - Statistical studies on the light output and energy resolution of small LSO single crystals with different surface treatments combined with various reflector materials
JF  - Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
N2  - The optimization of light output and energy resolution of scintillators is of special interest for the development of high resolution and high sensitivity PET. The aim of this work is to obtain statistically reliable results concerning optimal surface treatment of scintillation crystals and the selection of reflector material. For this purpose, raw, mechanically polished and etched LSO crystals (size 2×2×10 mm3) were combined with various reflector materials (Teflon tape, Teflon matrix, BaSO4) and exposed to a 22Na source. In order to ensure the statistical reliability of the results, groups of 10 LSO crystals each were measured for all combinations of surface treatment and reflector material. Using no reflector material the light output increased up to 551±35% by mechanical polishing the surface compared to 100±5% for raw crystals. Etching the surface increased the light output to 441±29%. The untreated crystals had an energy resolution of 24.6±4.0%. By mechanical polishing the surface it was possible to achieve an energy resolution of 13.2±0.8%, by etching of 14.8±0.7%. In combination with BaSO4 as reflector material the maximum increase of light output has been established to 932±57% for mechanically polished and 895±61% for etched crystals. The combination with BaSO4 also caused the best improvement of the energy resolution up to 11.6±0.2% for mechanically polished and 12.2±0.3% for etched crystals. Relating to the light output there was no significant statistical difference between the two surface treatments in combination with BaSO4. In contrast to this, the statistical results of the energy resolution have shown the combination of mechanical polishing and BaSO4 as the optimum.
Y1  - 2002
SN  - 0168-9002
N1  - Proceedings of the 6th International Conference on Inorganic Scin tillators and their Use in Scientific and Industrial Applications
VL  - 486
IS  - 1-2
SP  - 60
EP  - 66
ER  - 
TY  - JOUR
A1  - Streun, M.
A1  - Brandenburg, G.
A1  - Larue, H.
A1  - Zimmermann, E.
A1  - Ziemons, Karl
A1  - Halling, H.
T1  - A PET system with free running ADCs
JF  - Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
N2  - A small PET system has been built up with two multichannel photomultipliers, which are attached to a matrix of 64 single LSO crystals each. The signal from each multiplier is being sampled continuously by a 12 bit ADC at a sampling frequency of 40 MHz. In case of a scintillation pulse a subsequent FPGA sends the corresponding set of samples together with the channel information and a time mark to the host computer. The data transfer is performed with a rate of 20 MB/s. On the host all necessary information is extracted from the data. The pulse energy is determined, coincident events are detected and multiple hits within one matrix can be identified. In order to achieve a narrow time window the pulse starting time is refined further than the resolution of the time mark (=25 ns) would allow. This is possible by interpolating between the pulse samples. First data obtained from this system will be presented. The system is part of developments for a much larger system and has been created to study the feasibility and performance of the technique and the hardware architecture.
Y1  - 2002
SN  - 0168-9002
N1  - Proceedings of the 6th International Conference on Inorganic Scin tillators and their Use in Scientific and Industrial Applications
VL  - 486
IS  - 1-2
SP  - 18
EP  - 21
ER  -