TY  - JOUR
A1  - Wolf, Martin
A1  - Simon, S.
A1  - Schlick, Christopher
T1  - Qualitative and Quantitative Analysis of Cooperation / Wolf, M. ; Simon, S. ; Schlick, C.
JF  - Proceedings : May 26 - 29, 1998, Cannes (France) = Actes : 26 - 29 mai 1998 / INRIA, Institut National de Recherche en Informatique et en Automatique, Unité de recherche ... F. Darses ..., eds
Y1  - 1998
N1  - COOP ; Institut National de Recherche en Informatique et en Automatique ; Centre ; (Sophia Antipolis) ; International Conference on the Design of Cooperative Systems ; (3 ; 1998.05.26-29 ; Cannes) ; Conference Internationale sur la Conception de Systèmes Coopératifs ; (3 ; 1998.05.26-29 ; Cannes) ; COOP ; (3 ; 1998.05.26-29 ; Cannes)
SP  - 1
EP  - 5
PB  - -
CY  - Cannes
ER  - 
TY  - JOUR
A1  - Kleines, H.
A1  - Ziemons, Karl
A1  - Zwoll, K.
T1  - Experiences with ATM in a multivendor pilot system at Forschungszentrum Jülich
JF  - IEEE Transactions on Nuclear Science
N2  - The ATM technology for high speed serial transmission provides a new quality of communication by introducing novel features in a LAN environment, especially support of real time communication, of both LAN and WAN communication and of multimedia streams. In order to evaluate ATM for future DAQ systems and remote control systems as well as for a high speed picture archiving and communications system for medical images, Forschungszentrum Julich has build up a pilot system for the evaluation of ATM and standard low cost multimedia systems. It is a heterogeneous multivendor system containing a variety of switches and desktop solutions, employing different protocol options of ATM. The tests conducted in the pilot system revealed major difficulties regarding stability, interoperability and performance. The paper presents motivations, layout and results of the pilot system. Discussion of results concentrates on performance issues relevant for realistic applications, e.g., connection to a RAID system via NFS over ATM
Y1  - 1998
SN  - 0018-9499
VL  - 45
IS  - 4
SP  - 1867
EP  - 1871
ER  - 
TY  - JOUR
A1  - Weckesser, Martin
A1  - Grießmeier, Martin
A1  - Schmidt, Daniela
A1  - Sonnenberg, Frank
A1  - Ziemons, Karl
A1  - Kemna, Lars
A1  - Holschbach, Marcus
A1  - Langen, Karl-J.
A1  - Müller-Gärtner, Hans-W.
T1  - Iodine-123 α-methyl tyrosine single-photon emission tomography of cerebral gliomas: standardised evaluation of tumour uptake and extent
JF  - European Journal of Nuclear Medicine
N2  - Single-photon emission tomography (SPET) with the amino acid analogue l-3-[123I]iodo-α-methyl tyrosine (IMT) is helpful in the diagnosis and monitoring of cerebral gliomas. Radiolabelled amino acids seem to reflect tumour infiltration more specifically than conventional methods like magnetic resonance imaging and computed tomography. Automatic tumour delineation based on maximal tumour uptake may cause an overestimation of mean tumour uptake and an underestimation of tumour extension in tumours with circumscribed peaks. The aim of this study was to develop a program for tumour delineation and calculation of mean tumour uptake which takes into account the mean background activity and is thus optimised to the problem of tumour definition in IMT SPET. Using the frequency distribution of pixel intensities of the tomograms a program was developed which automatically detects a reference brain region and draws an isocontour region around the tumour taking into account mean brain radioactivity. Tumour area and tumour/brain ratios were calculated. A three-compartment phantom was simulated to test the program. The program was applied to IMT SPET studies of 20 patients with cerebral gliomas and was compared to the results of manual analysis by three different investigators. Activity ratios and chamber extension of the phantom were correctly calculated by the automatic analysis. A method based on image maxima alone failed to determine chamber extension correctly. Manual region of interest analysis in patient studies resulted in a mean inter-observer standard deviation of 8.7%±6.1% (range 2.7%–25.0%). The mean value of the results of the manual analysis showed a significant correlation to the results of the automatic analysis (r = 0.91, P<0.0001 for the uptake ratio; r = 0.87, P<0.0001 for the tumour area). We conclude that the algorithm proposed simplifies the calculation of uptake ratios and may be used for observer-independent evaluation of IMT SPET studies. Three-dimensional tumour recognition and transfer to co-registered morphological images based on this program may be useful for the planning of surgical and radiation treatment.
Y1  - 1998
SN  - 1619-7089
VL  - 25
IS  - 2
SP  - 150
EP  - 156
ER  - 
TY  - JOUR
A1  - Schwarte, Rudolf
A1  - Heinol, Horst-Guenther
A1  - Buxbaum, Bernd
A1  - Xu, Zhanping
A1  - Ringbeck, Thorsten
A1  - [u.a.], 
T1  - Neuartige 3D-Visionssysteme auf der Basis Layout-optimierter PMD-Strukturen
JF  - Technisches Messen : tm ; Plattform für Methoden, Systeme und Anwendungen der Messtechnik ; Organ der AMA (Fachverband für Sensorik e.V.) und der NAMUR (Interessengemeinschaft Prozessleittechnik der Chemischen und Pharmazeutischen Industrie). - 65(1998), H. 7-8
Y1  - 1998
SN  - 0340-837X
SP  - 264
EP  - 271
PB  - Oldenbourg
CY  - München
ER  - 
TY  - JOUR
A1  - Hoffmann, C. P.
A1  - Lindemann, Markus
A1  - Zimmermann, Hans-Dieter
T1  - Logistik-Ressourcen im World Wide Web
JF  - Wirtschaftsinformatik. Vol. 40 (1998), iss. 3
Y1  - 1998
SN  - 0937-6429
SP  - 245
EP  - 250
ER  - 
TY  - JOUR
A1  - Meliß, Michael
A1  - Neskakis, A.
A1  - Plettner-Marliani, J.
A1  - Lange, C.
A1  - Hövelmann, A.
A1  - Schumacher, J.
T1  - Waste water recycling supplied by renewable energies : basic conditions and possible treatment technologies
JF  - Renewable energy. Vol. 14 (1998), iss. 1-4. 6th Arab International Solar Energy Conference: Bringing Solar Energy into the Daylight, Muscat, Sultanate of Oman, 29.03.-01.04.1998
Y1  - 1998
SN  - 1879-0682 (E-Book); 0960-1481 (Print)
SP  - 325
EP  - 331
ER  - 
TY  - JOUR
A1  - Meliß, Michael
T1  - Regenerative Energiequellen
JF  - Brennstoff, Wärme, Kraft : BWK ; das Energie-Fachmagazin. Bd. 50 (1998), H. 4
Y1  - 1998
SN  - 0006-9612 (Print) ; 1436-4883 (E-Journal)
N1  - Printausg. in der Bibliothek vorhanden: 63 Z 609-1998
SP  - 74
EP  - 81
ER  - 
TY  - JOUR
A1  - Zientz, Evelyn
A1  - Bongaerts, Johannes
A1  - Unden, Gottfried
T1  - Fumarate regulation of gene expression in Escherichia coli by the DcuSR (dcuSR genes) two-component regulatory system
JF  - Journal of bacteriology
Y1  - 1998
SN  - 1098-5530 (E-Journal); 0021-9193 (Print)
VL  - Vol. 180
IS  - No. 20
SP  - 5421
EP  - 5425
ER  - 
TY  - JOUR
A1  - Kirschkamp, T.
A1  - Jöckel, M.
A1  - Wählisch, Georg
A1  - Barry, J. C.
T1  - Konstruktion eines Modellauges zur Simulation von Purkinje-Spiegelbildern für die Bestimmung der Krümmungsradien und der Lage der Augenlinse
JF  - Biomedizinische Technik = Biomedical Engineering
Y1  - 1998
SN  - 1862-278X (E-Journal); 0013-5585 (Print)
N1  - Printausg. in der Bibliothek vorhanden: 63 Z 471-1998/99
VL  - Bd. 43
IS  - H. 11
SP  - 318
EP  - 325
ER  - 
TY  - JOUR
A1  - Baumann, Marcus
A1  - Peschel, G.
T1  - Aktuelle Entwicklungen zur Luftreinhaltung in der Stadt Aachen
JF  - Wechselwirkung : Wissenschaft & vernetztes Denken
Y1  - 1998
SN  - 0172-1623
VL  - 20
IS  - 91
SP  - 22
EP  - 29
ER  - 
TY  - JOUR
A1  - Baumann, Marcus
A1  - Peschel, G.
T1  - Das Klima Aachens, lokale Ansprüche und globale Auswirkungen
JF  - Wechselwirkung : Wissenschaft & vernetztes Denken
Y1  - 1998
SN  - 0172-1623
VL  - 20
IS  - 93
SP  - 26
EP  - 33
ER  - 
TY  - JOUR
A1  - Iding, Hans
A1  - Siegert, Petra
A1  - Mesch, K.
A1  - Pohl, Martina
T1  - Application of α-keto acid decarboxylases in biotransformations
JF  - Biochimica et biophysica acta (BBA) - Protein structure and molecular enzymology
Y1  - 1998
SN  - 1879-2588 (E-Journal); 0167-4838 (Print)
VL  - Vol. 1385
IS  - Iss. 2
SP  - 307
EP  - 322
ER  - 
TY  - JOUR
A1  - Pohl, Martina
A1  - Siegert, Petra
A1  - Mesch, K.
A1  - Bruhn, H.
A1  - Grötzinger, Joachim
T1  - Active site mutants of pyruvate decarboxylase from Zymomonas mobilis : a site-directed mutagenesis study of L112, I472, I476, E473 and N482
JF  - European journal of biochemistry
Y1  - 1998
SN  - 1432-1033 (E-Journal); 1742-4658 (E-Journal); 0014-2956 (Print); 1742-464X (Print)
VL  - Vol. 257
IS  - Iss. 3
SP  - 538
EP  - 546
ER  - 
TY  - JOUR
A1  - Wollert, Jörg
T1  - Im Sog des Standards : Windows CE als Betriebssystem für Embedded Controller
JF  - Elektronik : Fachmedium für industrielle Anwender und Entwickler
Y1  - 1998
SN  - 0013-5658
N1  - Printausg. in der Bibliothek vorhanden: 63 ZS 030
VL  - Bd. 47
IS  - H. 9
SP  - 40
EP  - 51
ER  - 
TY  - JOUR
A1  - Wollert, Jörg
T1  - Alles automatisch : komplexes qualitätsorientiertes Logistikmanagement durch Vollautomatisierung
JF  - Elektrotechnik für die Automatisierung
Y1  - 1998
SN  - 0013-581X
VL  - Bd. 80
IS  - H. 4
SP  - 196
EP  - 199
ER  - 
TY  - JOUR
A1  - Wollert, Jörg
T1  - Zwergen-Anatomie : Aufbau von und Entwicklung für Windows CE
JF  - C't : Magazin für Computertechnik
Y1  - 1998
SN  - 0724-8679
IS  - H. 8
SP  - 148
EP  - 151
ER  - 
TY  - JOUR
A1  - Wollert, Jörg
T1  - Für viele, viele bunte Smarties : komplexes qualitätsorientiertes Logistikmanagement durch Vollautomatisierung
JF  - Fracht + Materialfluss : FM ; Technik und Praxis der Logistik
Y1  - 1998
SN  - 1430-9807
VL  - 30
IS  - H. 6
SP  - 30
EP  - 32
ER  - 
TY  - JOUR
A1  - Wollert, Jörg
T1  - Komplexes qualitätsorientiertes Logistikmanagement durch Vollautomatisierung
JF  - Dhf : Intralogistik ; Fachzeitschrift für Intralogistik
Y1  - 1998
SN  - 0723-7901
VL  - Bd. 44
IS  - H. 1
SP  - 14
EP  - 16
ER  - 
TY  - JOUR
A1  - Wollert, Jörg
T1  - Die Produktionslogistik der Front- und Heckmodule für die Smart-Montage in Hambach
JF  - Logistik für Unternehmen : das Fachmagazin der internen und externen Logistik
Y1  - 1998
SN  - 0930-7834
N1  - Printausg. in der Bibliothek vorhanden: 43 Z 513
SP  - 48
EP  - 51
ER  - 
TY  - JOUR
A1  - Barth, Heiko
A1  - Wollert, Jörg
T1  - SMARTes Konzept - von Produkt zur Fabrik
JF  - Facility-Management : Integration, Planung, Gebäudemanagement
Y1  - 1998
SN  - 0948-0048
VL  - Bd. 4
IS  - H. August
SP  - 30
EP  - 35
ER  -