TY  - CHAP
A1  - Endress, Tim
A1  - Bragard, Michael
T1  - Recording of efficiency-maps of low-power electric drive systems using a flexible matlab-based test bench
T2  - 2017 IEEE 58th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)
N2  - This paper introduces a hardware setup to measure efficiency maps of low-power electric motors and their associated inverters. Here, the power of the device under test (DUT) ranges from some Watts to a few hundred Watts. The torque and speed of the DUT are measured independent of voltage and current in multiple load points. A Matlab-based software approach in combination with an open Texas-Instruments (TI) hardware setup ensures flexibility. Exemplarily, the efficiency field of a Permanent Magnet Synchronous Machine (PMSM) is measured to proof the concept. Brushless-DC (BLDC) motors can be tested as well. The nomenclature in this paper is based on the new European standard DIN EN 50598. Special attention is paid to the calculation of the measurement error.
Y1  - 2017
SN  - 978-1-5386-3846-0
U6  - https://doi.org/10.1109/RTUCON.2017.8124775
PB  - IEEE
CY  - New York
ER  - 
TY  - CHAP
A1  - Epple, U.
A1  - Brandes, Sinja
A1  - Gligorevic, Snjezana
A1  - Schnell, Michael
T1  - Receiver optimization for L-DACS1
T2  - IEEE/AIAA 28th Digital Avionics Systems Conference : 23-29 Oct. 2009 : Orlando, Fla.
Y1  - 2009
SN  - 978-1-4244-4078-8
SP  - 4B1-1
EP  - 4B1-12
ER  - 
TY  - JOUR
A1  - Schiffer, Stefan
A1  - Ferrein, Alexander
A1  - Lakemeyer, Gerhard
T1  - Reasoning with Qualitative Positional Information for Domestic Domains in the Situation Calculus
JF  - Journal of Intelligent & Robotic Systems
Y1  - 2011
SN  - 0921-0296
VL  - 63
IS  - 2
SP  - 273
EP  - 300
PB  - Springer
CY  - Berlin
ER  - 
TY  - CHAP
A1  - Ritschel, Konstantin
A1  - Stenzel, Adina
A1  - Czarnecki, Christian
A1  - Hong, Chin-Gi
ED  - Gesellschaft für Informatik e.V. (GI), 
T1  - Realizing robotic process automation potentials: an architectural perspective on a real-life implementation case
T2  - GI Edition Proceedings Band 314 "INFORMATIK 2021" Computer Science & Sustainability
N2  - The initial idea of Robotic Process Automation (RPA) is the automation of business processes through a simple emulation of user input and output by software robots. Hence, it can be assumed that no changes of the used software systems and existing Enterprise Architecture (EA) is
required. In this short, practical paper we discuss this assumption based on a real-life implementation project. We show that a successful RPA implementation might require architectural work during analysis, implementation, and migration. As practical paper we focus on exemplary lessons-learned and new questions related to RPA and EA.
KW  - Robotic Process Automation
KW  - Enterprise Architecture
KW  - Implementation Case
Y1  - 2021
SN  - 9783885797081
U6  - https://doi.org/10.18420/informatik2021-108
SN  - 1617-5468
N1  - INFORMATIK 2021 – 51. Jahrestagung der Gesellschaft für Informatik, 27. September – 01. Oktober 2021 / Virtuell
SP  - 1303
EP  - 1311
PB  - Köllen
CY  - Bonn
ER  - 
TY  - CHAP
A1  - Engels, Elmar
A1  - Schnabel, Holger
T1  - Rapid-control-prototyping of industrial drives for the sercos automation bus
T2  - 13th International Workshop on Mechatronics (MECATRONICS), 2012 9th France-Japan & 7th Europe-Asia Congress on and Research and Education in Mechatronics (REM)
N2  - This article describes the functionality of a MATLAB® library that can be used to develop motion-logic applications in MATLAB programming language for industrial drive and control systems using the well known sercos automation bus. Therewith MATLAB's functionality is extended to designing automation applications from single axis machines up to multi-kinematic robots.
KW  - MATLAB , MLPI , Motion control , Open Core , industrial drives , rapid control prototypin , sercos automation bus
Y1  - 2012
UR  - http://dx.doi.org/10.1109/MECATRONICS.2012.6451005
SN  - 978-1-4673-4771-6
SP  - 177
EP  - 181
ER  - 
TY  - JOUR
A1  - Noureddine, Yacine
A1  - Kraff, Oliver
A1  - Ladd, Mark E.
A1  - Wrede, Karsten
A1  - Chen, Bixia
A1  - Quick, Harald H.
A1  - Schaefers, Georg
A1  - Bitz, Andreas
T1  - Radiofrequency induced heating around aneurysm clips using a generic birdcage head coil at 7 Tesla under consideration of the minimum distance to decouple multiple aneurysm clips
JF  - Magnetic Resonance in Medicine
Y1  - 2019
U6  - https://doi.org/10.1002/mrm.27835
SN  - 1522-2594
IS  - Early view
SP  - 1
EP  - 17
PB  - Wiley
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Hillgärtner, Michael
A1  - Kappel, U.
T1  - Radiating Impedance of Mains Cabling During Emissions Testing
JF  - EMC Europe 2006 Barcelona : International Symposium on Electromagnetic Compatibility; September 4 - 8, 2006, Campus Nord, Technical University of Catalonia, Barcelona, Spain / [organized by Technical University of Catalonia (UPC) ... Ed. and publ. by: Ferran Silva ...]. - Vol. 1: Proceedings 1
Y1  - 2006
SN  - 84-689-9439-1
N1  - EMC Europe <7,2006,Barcelona>; International Symposium on Electromagnetic Compatibility <7, 2006, Barcelona>
SP  - 17
EP  - 22
CY  - Barcelona
ER  - 
TY  - JOUR
A1  - Scholl, Ingrid
A1  - Palm, Christoph
A1  - Lehmann, Thomas
A1  - Spitzer, Klaus
T1  - Quantitative Farbmessung in laryngoskopischen Bildern. Palm, C; Scholl, I; Lehmann, TM; Spitzer, K.
JF  - Bildverarbeitung für die Medizin 1998. Hrsg.: Thomas Lehmann ...
Y1  - 1998
SN  - 3-540-63885-7
SP  - 412
EP  - 416
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Ferrein, Alexander
A1  - Schiffer, Stefan
A1  - Lakemeyer, Gerhard
T1  - Qualitative World Models for Soccer Robots / Schiffer, Stefan ; Ferrein, Alexander ; Lakemeyer, Gerhard
JF  - Qualitative constraint calculi : application and integration ; KI 2006, 14 - 19 June 2006, Bremen, Germany ; 29th Annual German Conference on Artificial Intelligence ; workshop / Stefan Wölfl ... (eds.)
Y1  - 2006
SN  - 3-88722-666-6
SP  - 3
EP  - 14
PB  - Univ.
CY  - Bremen
ER  - 
TY  - JOUR
A1  - Wolf, Martin R.
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  - Schuba, Marko
A1  - Schneider, Gaby
A1  - Haverkort, Boudewijn R.
T1  - QNA-MC: A Performance Evaluation Tool for Communication Networks with Multicast Data Streams / Schneider, G. ; Schuba, M. ; Haverkort, B. R.
JF  - Computer Performance Evaluation - Modelling Techniques and Tools / Puigjaner, Ramon (eds.)
Y1  - 1998
SN  - 3-540-64949-2
N1  - Lecture notes in computer  science ; 1469
SP  - 105
EP  - 116
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Niemüller, Tim
A1  - Ferrein, Alexander
A1  - Eckel, Gerhard
A1  - Pirro, David
A1  - Podbregar, Patrick
A1  - Kellner, Tobias
A1  - Rath, Christoph
A1  - Steinbauer, Gerald
T1  - Providing Ground-truth Data for the Nao Robot Platform
JF  - RoboCup 2010: Robot Soccer World Cup XIV
Y1  - 2011
SN  - 978-3-642-20217-9
N1  - Lecture Notes in Computer Science ; 6556
SP  - 133
EP  - 144
PB  - Springer
CY  - Berlin
ER  - 
TY  - BOOK
A1  - Bochmann, Sandra
A1  - Ritz, Thomas
T1  - Prototyping tools for mobile applications
Y1  - 2013
SN  - 978-3-943356-45-8
PB  - Steinbeis-Ed.
CY  - Stuttgart
ER  - 
TY  - JOUR
A1  - Coll-Perales, Baldomero
A1  - Schulte-Tigges, Joschua
A1  - Rondinone, Michele
A1  - Gozalvez, Javier
A1  - Reke, Michael
A1  - Matheis, Dominik
A1  - Walter, Thomas
T1  - Prototyping and evaluation of infrastructure-assisted transition of control for cooperative automated vehicles
JF  - IEEE Transactions on Intelligent Transportation Systems
N2  - Automated driving is now possible in diverse road and traffic conditions. However, there are still situations that automated vehicles cannot handle safely and efficiently. In this case, a Transition of Control (ToC) is necessary so that the driver takes control of the driving. Executing a ToC requires the driver to get full situation awareness of the driving environment. If the driver fails to get back the control in a limited time, a Minimum Risk Maneuver (MRM) is executed to bring the vehicle into a safe state (e.g., decelerating to full stop). The execution of ToCs requires some time and can cause traffic disruption and safety risks that increase if several vehicles execute ToCs/MRMs at similar times and in the same area. This study proposes to use novel C-ITS traffic management measures where the infrastructure exploits V2X communications to assist Connected and Automated Vehicles (CAVs) in the execution of ToCs. The infrastructure can suggest a spatial distribution of ToCs, and inform vehicles of the locations where they could execute a safe stop in case of MRM. This paper reports the first field operational tests that validate the feasibility and quantify the benefits of the proposed infrastructure-assisted ToC and MRM management. The paper also presents the CAV and roadside infrastructure prototypes implemented and used in the trials. The conducted field trials demonstrate that infrastructure-assisted traffic management solutions can reduce safety risks and traffic disruptions.
KW  - Automated driving
KW  - automated vehicles
KW  - connected automated vehicles
KW  - CAV
KW  - experimental evaluation
Y1  - 2021
U6  - https://doi.org/10.1109/TITS.2021.3061085
SN  - 1524-9050 (Print)
SN  - 1558-0016 (Online)
VL  - 23
IS  - 7
SP  - 6720
EP  - 6736
PB  - IEEE
ER  - 
TY  - JOUR
A1  - Klomp, D. W. J.
A1  - Bitz, Andreas
A1  - Heerschap, A.
A1  - Scheenen, T. W. J.
T1  - Proton spectroscopic imaging of the human prostate at 7 T
JF  - NMR in Biomedicine
Y1  - 2009
U6  - https://doi.org/10.1002/nbm.1360
SN  - 1099-1492
VL  - 22
IS  - 5
SP  - 495
EP  - 501
ER  - 
TY  - CHAP
A1  - Schult, Prince Garcia
A1  - Losse, Ann-Kathrin
A1  - Czarnecki, Christian
A1  - Sultanow, Eldar
T1  - Proposing a Framework to address the Sustainable Development Goals
T2  - EnviroInfo 2023
N2  - Reducing poverty, protecting the planet, and improving life on earth for everyone are the essential goals of the "2030 Agenda for Sustainable Development"committed by the United Nations (UN). Achieving those goals will require technological innovation as well as their implementation in almost all areas of our business and day-to-day life. This paper proposes a high-level framework that collects and structures different uses cases addressing the goals defined by the UN. Hence, it contributes to the discussion by proposing technical innovations that can be used to achieve those goals. As an example, the goal "Climate Actionïs discussed in detail by describing use cases related to tackling biodiversity loss in order to conservate ecosystems.
Y1  - 2023
SN  - 978-3-88579-736-4
U6  - https://doi.org/10.18420/env2023-022
SN  - 1617-5468
N1  - EnviroInfo 2023, 11. - 23. October 2023, Garching, Germany
SP  - 243
EP  - 249
PB  - GI - Gesellschaft für Informatik
CY  - Bonn
ER  - 
TY  - JOUR
A1  - Niemüller, Tim
A1  - Lakemeyer, Gerhard
A1  - Ferrein, Alexander
A1  - Reuter, S.
A1  - Ewert, D.
A1  - Jeschke, S.
A1  - Pensky, D.
A1  - Karras, Ulrich
T1  - Proposal for advancements to the LLSF in 2014 and beyond
Y1  - 2013
SP  - Publ. online
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  - CHAP
A1  - Ritz, Thomas
T1  - Production and distribution of personalized information services employing mass customization
T2  - 2nd Interdisciplinary World Congress on Mass Customization and Personalization : MCPC'03, October 6 - 8, 2003, Technische Universität München, Munic, Germany
Y1  - 2003
SP  - Part IV
PB  - Techn. Univ. (TUM)
CY  - München
ET  - CD-Ausg.
ER  - 
TY  - CHAP
A1  - Grothof, M.
A1  - Schwarte, Rudolf
A1  - Buxbaum, Bernd
A1  - Ringbeck, Thorsten
ED  - Wagner, Elmar
T1  - Product monitoring with MSM-PMD-Array
T2  - Proceedings / OPTO 2002 : an event of the Association for Sensor Technology AMA ; 14 - 16 May 2002, Exhibition Centre Erfurt, Germany / International Conference Optoelectronics, Optical Sensors & Measuring Techniques
Y1  - 2002
N1  - OPTO <5, 2002, Erfurt> ; International Conference Optoelectronics, Optical Sensors & Measuring Techniques
SP  - 41
EP  - 47
PB  - AMA Service GmbH
CY  - Wunsdorf
ER  - 
TY  - CHAP
A1  - Stenger, David
A1  - Altherr, Lena
A1  - Müller, Tankred
A1  - Pelz, Peter F.
T1  - Product family design optimization using model-based engineering techniques
T2  - Operations Research Proceedings 2017
N2  - Highly competitive markets paired with tremendous production volumes demand particularly cost efficient products. The usage of common parts and modules across product families can potentially reduce production costs. Yet, increasing commonality typically results in overdesign of individual products. Multi domain virtual prototyping enables designers to evaluate costs and technical feasibility of different single product designs at reasonable computational effort in early design phases. However, savings by platform commonality are hard to quantify and require detailed knowledge of e.g. the production process and the supply chain. Therefore, we present and evaluate a multi-objective metamodel-based optimization algorithm which enables designers to explore the trade-off between high commonality and cost optimal design of single products.
Y1  - 2018
SN  - 978-3-319-89919-0
U6  - https://doi.org/10.1007/978-3-319-89920-6_66
SP  - 495
EP  - 502
PB  - Springer
CY  - Cham
ER  - 
TY  - JOUR
A1  - Schiffer, Stefan
A1  - Ferrein, Alexander
A1  - Lakemeyer, Gerhard
T1  - Proceedings of the Fourth International Conference on Intelligent Robotics and Applications (ICIRA 2011)
JF  - Proceedings of the Fourth International Conference on Intelligent Robotics and Applications (ICIRA 2011)
Y1  - 2010
SP  - 1
EP  - 10
ER  - 
TY  - JOUR
A1  - Heuermann, Holger
A1  - Schiek, B.
T1  - Procedures for the Determination of the Scattering Parameters for Network Analyzer Calibration
JF  - IEEE transactions on instrumentation and measurement : IM / Institute of Electrical and Electronics Engineers, Instrumentation and Measurement Group. 42 (1993), H. 2
Y1  - 1993
SN  - 0018-9456
SP  - 528
EP  - 531
ER  - 
TY  - CHAP
A1  - Hoegen, Anne von
A1  - Doncker, Rik W. De
A1  - Bragard, Michael
A1  - Hoegen, Svenja von
T1  - Problem-based learning in automation engineering: performing a remote laboratory aession aerving various educational attainments
T2  - 2021 IEEE Global Engineering Education Conference (EDUCON)
N2  - During the Covid-19 pandemic, vocational colleges, universities of applied science and technical universities often had to cancel laboratory sessions requiring students’ attendance. These above of all are of decisive importance in order to give learners an understanding of theory through practical work.This paper is a contribution to the implementation of distance learning for laboratory work applicable for several upper secondary educational facilities. Its aim is to provide a paradigm for hybrid teaching to analyze and control a non-linear system depicted by a tank model. For this reason, we redesign a full series of laboratory sessions on the basis of various challenges. Thus, it is suitable to serve different reference levels of the European Qualifications Framework (EQF).We present problem-based learning through online platforms to compensate the lack of a laboratory learning environment. With a task deduced from their future profession, we give students the opportunity to develop own solutions in self-defined time intervals. A requirements specification provides the framework conditions in terms of time and content for students having to deal with the challenges of the project in a self-organized manner with regard to inhomogeneous previous knowledge. If the concept of Complete Action is introduced in classes before, they will automatically apply it while executing the project.The goal is to combine students’ scientific understanding with a procedural knowledge. We suggest a series of remote laboratory sessions that combine a problem formulation from the subject area of Measurement, Control and Automation Technology with a project assignment that is common in industry by providing extracts from a requirements specification.
Y1  - 2021
U6  - https://doi.org/10.1109/EDUCON46332.2021.9453925
N1  - 2021 IEEE Global Engineering Education Conference (EDUCON), 21-23 April 2021, Vienna, Austria
SP  - 1605
EP  - 1614
PB  - IEEE
CY  - New York, NY
ER  - 
TY  - CHAP
A1  - Neugebauer, Georg
A1  - Brutschy, Lucas
A1  - Meyer, Ulrike
A1  - Wetzel, Susanne
ED  - Garcia-Alfaro, Joaquin
ED  - Lioudakis, Georgios
ED  - Cuppens-Boulahia, Nora
ED  - Foley, Simon
ED  - Fitzgerald, William M.
T1  - Privacy-preserving multi-party reconciliation secure in the malicious model
T2  - DPM 2013, SETOP 2013: Data Privacy Management and Autonomous Spontaneous Security
N2  - The problem of fair and privacy-preserving ordered set reconciliation arises in a variety of applications like auctions, e-voting, and appointment reconciliation. While several multi-party protocols have been proposed that solve this problem in the semi-honest model, there are no multi-party protocols that are secure in the malicious model so far. In this paper, we close this gap. Our newly proposed protocols are shown to be secure in the malicious model based on a variety of novel non-interactive zero-knowledge-proofs. We describe the implementation of our protocols and evaluate their performance in comparison to protocols solving the problem in the semi-honest case.
KW  - Privacy-enhancing technologies
KW  - Secure multi-party computation
KW  - Cryptographic protocols
KW  - Zero-knowledge proofs
KW  - Malicious model
Y1  - 2014
SN  - 978-3-642-54567-2 (Print)
SN  - 978-3-642-54568-9 (Online)
U6  - https://doi.org/10.1007/978-3-642-54568-9_12
N1  - 8th International Workshop, DPM 2013, and 6th International Workshop, SETOP 2013, Egham, UK, September 12-13, 2013.

Part of the Lecture Notes in Computer Science book series (LNSC,volume 8247)
SP  - 178
EP  - 193
PB  - Springer
CY  - Berlin
ER  - 
TY  - CHAP
A1  - Schwarte, Rudolf
A1  - Heinol, Horst-Guenther
A1  - Buxbaum, Bernd
A1  - Ringbeck, Thorsten
A1  - Xu, Z.
A1  - Hartmann, K.
ED  - Jähne, Bernd
T1  - Principles of three-dimensional imaging techniques
T2  - Sensors and imaging. - (Handbook of computer vision and applications ; Vol. 1)
Y1  - 1999
SN  - 0-12-379771-3 (Einzelbd.)
SN  - 0-12-379770-5 (Gesamtwerk)
SP  - 463
EP  - 485
PB  - Academic Press
CY  - San Diego
ER  - 
TY  - CHAP
A1  - Hüning, Felix
T1  - Power Semiconductors for the automotive 48V board net
T2  - PCIM Europe 2016 Conference Proceedings
Y1  - 2016
SN  - 978-3-8007-4186-1
SP  - 1963
EP  - 1969
PB  - VDE Verl.
CY  - Berlin
ER  - 
TY  - CHAP
A1  - Hüning, Felix
T1  - Power semiconductors : key components for HEV/EV
T2  - FISITA 2014 World Automotive Congress : 2 - 6 June, Maastricht, the Netherlands International Federation of Automotive Engineering Societies
Y1  - 2014
N1  - Datenformat: PDF
PB  - KIVI
CY  - [s.l.]
ER  - 
TY  - CHAP
A1  - Hagebeuker, Bianca
A1  - Ringbeck, Thorsten
A1  - Frydlewicz, Paul
A1  - Jesorsky, Oliver
A1  - Sünkel, Thomas
ED  - Grote, Caspar
T1  - PMD-Sensoren als Schlüsselkomponenten für die mehrdimensionale Umfelderfassung des Fahrzeuginnenraums
T2  - Begleittexte zum Entwicklerforum KFZ-Elektronik & FlexRay Solution Day : 15.Mai 2007, Ludwigsburg
Y1  - 2007
N1  - Entwicklerforum Kfz-Elektronik <2007, Ludwigsburg> ; FlexRay Solution Day <2007, Ludwigsburg>
SP  - 287
EP  - 296
PB  - WEKA-Fachzeitschr.-Verl.
CY  - Poing
ER  - 
TY  - CHAP
A1  - Buxbaum, Bernd
A1  - Schwarte, Rudolf
A1  - Ringbeck, Thorsten
ED  - Korevaar, Eric John
T1  - PMD-PLL: receiver structure for incoherent communication and ranging systems
T2  - Optical wireless communications II / [SPIE Conference on Optical Wireless Communications II], 22 September 1999, Boston, Massachusetts. - (SPIE proceedings series ; 3850)
Y1  - 1999
SN  - 0-8194-3443-4
SN  - 0038-7355
SN  - 0277-786X
N1  - Conference on Optical Wireless Communications <2, 1999, Boston, Mass.>
SP  - 116
EP  - 130
PB  - SPIE
CY  - Bellingham, Wash.
ER  - 
TY  - CHAP
A1  - Elsen, Ingo
A1  - Kraiss, Karl-Friedrich
A1  - Krumbiegel, Dirk
T1  - Pixel based 3D object recognition with bidirectional associative memories
T2  - International Conference on Neural Networks 1997
N2  - This paper addresses the pixel based recognition of 3D objects with bidirectional associative memories. Computational power and memory requirements for this approach are identified and compared to the performance of current computer architectures by benchmarking different processors. It is shown, that the performance of special purpose hardware, like neurocomputers, is between one and two orders of magnitude higher than the performance of mainstream hardware. On the other hand, the calculation of small neural networks is performed more efficiently on mainstream processors. Based on these results a novel concept is developed, which is tailored for the efficient calculation of bidirectional associative memories. The computational efficiency is further enhanced by the application of algorithms and storage techniques which are matched to characteristics of the application at hand.
Y1  - 1997
SN  - 0-7803-4122-8
N1  - June 9 - 12, 1997, Westin Galleria Hotel Houston, Texas, USA.
SP  - 1679
EP  - 1684
PB  - IEEE
CY  - New York
ER  - 
TY  - JOUR
A1  - Claessens, J.
A1  - Fuchsberger, A.
A1  - Günther, C.
A1  - Horn, G.
A1  - Howker, K.
A1  - Hulsebosch, R.J.
A1  - Mitchell, C.
A1  - Paterson, K.
A1  - Preneel, B.
A1  - Schellekens, D.
A1  - Schuba, Marko
T1  - Pioneering Advanced Mobile Privacy and Security
Y1  - 2003
N1  - electronic proceedings of the 18th IFIP International Information Security Conference, Athens, Greece, May 2003
SP  - 1
EP  - 17
ER  - 
TY  - JOUR
A1  - Hulsebosch, R. J.
A1  - Günther, C.
A1  - Horn, C.
A1  - Holtmanns, S.
A1  - Howker, K.
A1  - Paterson, K.
A1  - Claessens, J.
A1  - Schuba, Marko
ED  - Mitchell, Chris J.
T1  - Pioneering Advanced Mobile Privacy and Security
JF  - Security for mobility
Y1  - 2004
SN  - 9781849190886
U6  - https://doi.org/10.1049/PBTE051E_ch
N1  - IEE telecommunications series ; 51
SP  - 383
EP  - 432
PB  - Institution of Electrical Engineers
CY  - London
ER  - 
TY  - JOUR
A1  - Prume, Klaus
A1  - Muralt, P.
A1  - Calame, F.
A1  - Schmitz-Kempen, T.
T1  - Piezoelectric thin films: evaluation of electrical and electromechanical characteristics for MEMS devices  / Prume, K. ; Muralt, P. ; Calame, F. ; Schmitz-Kempen, T. ; Tiedke, S. ;
JF  - IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control. 54 (2007), H. 1
Y1  - 2007
SN  - 0885-3010
SP  - 81
EP  - 14
ER  - 
TY  - CHAP
A1  - Brandes, Sinja
A1  - Epple, U.
A1  - Gligorevic, Snjezana
A1  - Schnell, Michael
A1  - Haindl, Bernhard
A1  - Sajatovic, Miodrag
T1  - Physical layer specification of the L-band Digital Aeronautical Communications System (L-DACS1)
T2  - Integrated Communications, Navigation and Surveillance Conference : ICNS '09 : 13 - 15 May 2009, Arlington, Va.
Y1  - 2009
SN  - 978-1-4244-4733-6 ; 978-1-4244-4734-3
SP  - 1
EP  - 12
ER  - 
TY  - JOUR
A1  - Hagemann, Hans-Jürgen
A1  - Gudat, W.
A1  - Kunz, C.
T1  - Photoabsorption of alloys of Al with transition metals V, Fe, Ni and Cu and Pr near the Al L₂,₃-edge
JF  - Solid State Communications
N2  - The onset of Al 2p transitions of VAl₃, FeAl, NiAl, NiAl₃, CuAl₂, PrAl₂ and the disordered alloys V-Al (16 at % Al, 28%, 41%), Fe-Al (11%) is shifted up to 1.1 eV. New pronounced structure develops close to the onset which for NiAl agrees with a density of states calculation by Connolly and Johnson.
Y1  - 1974
SN  - 0038-1098
U6  - https://doi.org/10.1016/0038-1098(74)91165-X
VL  - 15
IS  - 3
SP  - 655
EP  - 658
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Hagemann, Hans-Jürgen
A1  - Gudat, W.
A1  - Kunz, C.
T1  - Photoabsorption coefficient of alloys of Al with transition metals V, Fe, Ni and Cu and Pr from 30 to 150 eV photon energy
JF  - Physica status solidi b
N2  - The absorption coefficient of VAI3, FeAI, NiAI, NiAl2, CuAI2, PrAl2, and of disordered V–AI (16 at% AI, 28%, 41%) and Fe–AI (11%) alloys has been measured in the region of the M₂,₃ absorption of the transition metals and the Labsorption of AI. The strong changes of the AI spectrum in the region of the 100 eV maximum upon alloying are explained as another evidence of the EXAFS (extended X-ray absorption fine structure) nature of these structures. The broad, prominent absorption peaks from the 3p excitations in V and Fe and from the 4d excitations in Pr are influenced only little on allyoing and thus appear to be of atomic origin. The fine structure at the onset of the Pr 4d transitions is identical in the metal and the alloy but differs from that of Pr oxide. The only M₂,₃ edge which is detectably shifted is that of Ni (up to 2.1 eV), whereas the onset of the AI L₂,₃ edge is shifted in all the alloys (up to 1.1 eV). The shifts are interpreted in accordance with X-ray fluorescence and nuclear resonance measurements as changes of the density of states in the valence band of the alloys.
Y1  - 1976
SN  - 0031-8957
U6  - https://doi.org/10.1002/pssb.2220740211
N1  - weitere ISSN 0370-1972
VL  - 74
IS  - 2
SP  - 507
EP  - 521
PB  - Wiley-VCH
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Lagemaat, Miriam W.
A1  - Vos, Eline K.
A1  - Maas, Marnix C.
A1  - Bitz, Andreas
A1  - Orzada, Stephan
A1  - Uden, Mark J. van
A1  - Kobus, Thiele
A1  - Heerschap, Arend
A1  - Scheenen, Tom W. J.
T1  - Phosphorus magnetic resonance spectroscopic imaging at 7 T in patients with prostate cancer
JF  - Investigative Radiology
N2  - Objectives 
The aim of this study was to identify characteristics of phosphorus (³¹P) spectra of the human prostate and to investigate changes of individual phospholipid metabolites in prostate cancer through in vivo ³¹P magnetic resonance spectroscopic imaging (MRSI) at 7 T.

Materials and Methods 
In this institutional review board–approved study, 15 patients with biopsy-proven prostate cancer underwent T₂-weighted magnetic resonance imaging and 3-dimensional ³¹P MRSI at 7 T. Voxels were selected at the tumor location, in normal-appearing peripheral zone tissue, normal-appearing transition zone tissue, and in the base of the prostate close to the seminal vesicles. Phosphorus metabolite ratios were determined and compared between tissue types.

Results 
Signals of phosphoethanolamine (PE) and phosphocholine (PC) were present and well resolved in most ³¹P spectra in the prostate. Glycerophosphocholine signals were observable in 43% of the voxels in malignant tissue, but in only 10% of the voxels in normal-appearing tissue away from the seminal vesicles. In many spectra, independent of tissue type, 2 peaks resonated in the chemical shift range of inorganic phosphate, possibly representing 2 separate pH compartments. The PC/PE ratio in the seminal vesicles was highly elevated compared with the prostate in 5 patients. A considerable overlap of ³¹P metabolite ratios was found between prostate cancer and normal-appearing prostate tissue, preventing direct discrimination of these tissues. The only 2 patients with high Gleason scores tumors (≥4+5) presented with high PC and glycerophosphocholine levels in their cancer lesions.

Conclusions 
Phosphorus MRSI at 7 T shows distinct features of phospholipid metabolites in the prostate gland and its surrounding structures. In this exploratory study, no differences in ³¹P metabolite ratios were observed between prostate cancer and normal-appearing prostate tissue possibly because of the partial volume effects of small tumor foci in large MRSI voxels.
Y1  - 2014
U6  - https://doi.org/10.1097/RLI.0000000000000012
SN  - 1536-0210
VL  - 49
IS  - 5
SP  - 363
EP  - 372
PB  - Lippincott Williams & Wilkins
CY  - Philadelphia, Pa.
ER  - 
TY  - CHAP
A1  - Harzheim, Thomas
A1  - Heuermann, Holger
T1  - Phase Repeatable Synthesizers as a New Harmonic Phase Standard for Nonlinear Network Analysis
T2  - IEEE Transactions on Microwave Theory and Techniques
Y1  - 2018
U6  - https://doi.org/10.1109/TMTT.2018.2817513
SP  - 1
EP  - 8
PB  - IEEE
ER  - 
TY  - JOUR
A1  - Ritz, Thomas
T1  - Personalized Information Services: Production and Distribution of these Services employing Mass-Customization
Y1  - 2002
N1  - International Congress on Mass Media and Communications in the e-society of the 21st Century, Moskau, 17.-19.10.2002
ER  - 
TY  - JOUR
A1  - Ritz, Thomas
T1  - Personalized information services : an electronic information commodity and its production
JF  - International Journal of E-Business Strategy Management
Y1  - 2000
SN  - 1467-0305
VL  - 2
IS  - 2
ER  - 
TY  - CHAP
A1  - Ritz, Thomas
T1  - Personalized information services : an electronic information commodity and its production
T2  - Electronic publishing '01 : 2001 in the digital publishing odyssey ; proceedings of an ICCC/IFIP conference held at the University of Kent at Canterbury, Kent, United Kingdom, 5 - 7 July, 2001 ; [proceedings of the Fifth Conference on Electronic Publishing]
Y1  - 2001
SN  - 1-58603-191-0
SP  - 48
EP  - 58
PB  - IOS Press [u.a.]
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Schuba, Marko
A1  - Hermanns, Oliver
T1  - Performance Investigations of the IP Multicast Architecture / Hermanns, Oliver ; Schuba, Marko
JF  - Performance of the IP Multicast Achitecture . Proceedings JENC 6. Proceedings of the 6th Joint European Networking Conference, Tel Aviv
Y1  - 1995
N1  - Reprinted in Computer Networks and ISDN Systems 28 pp 429-439, 1996
SP  - 121-1
EP  - 121-8
ER  - 
TY  - JOUR
A1  - Schuba, Marko
A1  - Haverkort, Boudewijn R.
A1  - Schneider, Gaby
T1  - Performance evaluation of multicast communication in packet-switched networks / Schuba, Marko ; Haverkort, Boudewijn  R. ; Schneider, Gaby
JF  - Performance Evaluation. 39 (2000), H. 1-4
Y1  - 2000
SN  - 0166-5316
N1  - http://dx.doi.org/10.1016/S0166-5316(99)00058-9
SP  - 61
EP  - 80
ER  - 
TY  - JOUR
A1  - Fiedler, Thomas M.
A1  - Orzada, Stephan
A1  - Flöser, Martina
A1  - Rietsch, Stefan H. G.
A1  - Schmidt, Simon
A1  - Stelter, Jonathan K.
A1  - Wittrich, Marco
A1  - Quick, Harald H.
A1  - Bitz, Andreas
A1  - Ladd, Mark E.
T1  - Performance and safety assessment of an integrated transmit array for body imaging at 7 T under consideration of specificabsorption rate, tissue temperature, and thermal dose
JF  - NMR in Biomedicine
N2  - In this study, the performance of an integrated body-imaging array for 7 T with 32 radiofrequency (RF) channels under consideration of local specific absorption rate (SAR), tissue temperature, and thermal dose limits was evaluated and the imaging performance was compared with a clinical 3 T body coil.

Thirty-two transmit elements were placed in three rings between the bore liner and RF shield of the gradient coil. Slice-selective RF pulse optimizations for B1 shimming and spokes were performed for differently oriented slices in the body under consideration of realistic constraints for power and local SAR. To improve the B1+ homogeneity, safety assessments based on temperature and thermal dose were performed to possibly allow for higher input power for the pulse optimization than permissible with SAR limits.

The results showed that using two spokes, the 7 T array outperformed the 3 T birdcage in all the considered regions of interest. However, a significantly higher SAR or lower duty cycle at 7 T is necessary in some cases to achieve similar B1+ homogeneity as at 3 T. The homogeneity in up to 50 cm-long coronal slices can particularly benefit from the high RF shim performance provided by the 32 RF channels. The thermal dose approach increases the allowable input power and the corresponding local SAR, in one example up to 100 W/kg, without limiting the exposure time necessary for an MR examination.

In conclusion, the integrated antenna array at 7 T enables a clinical workflow for body imaging and comparable imaging performance to a conventional 3 T clinical body coil.
KW  - body imaging at 7 T MRI
KW  - thermal dose
KW  - tissue temperature
KW  - transmit antenna arrays
Y1  - 2022
U6  - https://doi.org/10.1002/nbm.4656
SN  - 0952-3480 (Print)
SN  - 1099-1492 (Online)
VL  - 35
IS  - 5
SP  - 1
EP  - 17
PB  - Wiley
ER  - 
TY  - JOUR
A1  - Schuba, Marko
T1  - Performance Analysis of Reliable Multicast Mechanisms for Widely Spread Distributed Applications in the Internet
JF  - International Conference on Parallel and Distributed Processing Techniques and Applications : PDPTA '99 ; June 28 - July 1, 1999, Las Vegas, Nevada, USA / ed.: Hamid R. Arabnia
Y1  - 1999
SN  - 1892512157
SP  - 1
EP  - 7
ER  - 
TY  - JOUR
A1  - Fiedler, Thomas M.
A1  - Orzada, Stephan
A1  - Flöser, Martina
A1  - Rietsch, Stefan H. G.
A1  - Quick, Harald H.
A1  - Ladd, Mark E.
A1  - Bitz, Andreas
T1  - Performance analysis of integrated RF microstrip transmit antenna arrays with high channel count for body imaging at 7 T
JF  - NMR in Biomedicine
N2  - The aim of the current study was to investigate the performance of integrated RF
transmit arrays with high channel count consisting of meander microstrip antennas
for body imaging at 7 T and to optimize the position and number of transmit ele-
ments. RF simulations using multiring antenna arrays placed behind the bore liner
were performed for realistic exposure conditions for body imaging. Simulations were
performed for arrays with as few as eight elements and for arrays with high channel
counts of up to 48 elements. The B1+ field was evaluated regarding the degrees of
freedom for RF shimming in the abdomen. Worst-case specific absorption rate
(SARwc ), SAR overestimation in the matrix compression, the number of virtual obser-
vation points (VOPs) and SAR efficiency were evaluated. Constrained RF shimming
was performed in differently oriented regions of interest in the body, and the devia-
tion from a target B1+ field was evaluated. Results show that integrated multiring
arrays are able to generate homogeneous B1+ field distributions for large FOVs, espe-
cially for coronal/sagittal slices, and thus enable body imaging at 7 T with a clinical
workflow; however, a low duty cycle or a high SAR is required to achieve homoge-
neous B1+ distributions and to exploit the full potential. In conclusion, integrated
arrays allow for high element counts that have high degrees of freedom for the pulse
optimization but also produce high SARwc , which reduces the SAR accuracy in the
VOP compression for low-SAR protocols, leading to a potential reduction in array
performance. Smaller SAR overestimations can increase SAR accuracy, but lead to a
high number of VOPs, which increases the computational cost for VOP evaluation
and makes online SAR monitoring or pulse optimization challenging. Arrays with
interleaved rings showed the best results in the study.
KW  - body imaging at UHF MRI
KW  - integrated transmit coil arrays
KW  - VOP compression
Y1  - 2021
U6  - https://doi.org/10.1002/nbm.4515
SN  - 0952-3480 (ISSN)
SN  - 1099-1492 (eISSN)
VL  - 34
IS  - 7
PB  - Wiley
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Hagemann, Hans-Jürgen
A1  - Geittner, P.
T1  - PCVD hybrid technology for single mode fibres. Hagemann, H. J.; Geittner, P.
JF  - Proceedings : papers presented at: the 8th Annual European Fibre Optic Communications and Local Area Networks Exposition
Y1  - 1990
N1  - EFOC LAN <8, 1990, München>
SP  - 67
EP  - 72
ER  - 
TY  - JOUR
A1  - Hagemann, Hans-Jürgen
A1  - Geittner, P.
A1  - Warnier, J.
A1  - Wilson, H.
T1  - PCVD at high deposition rates. Geittner, P.; Hagemann, H. J.; Warnier, J.; Wilson, H.
JF  - Journal of Lightwave Technology (J-LT) / Institute of Electrical and Electronics Engineers (IEEE). 4 (1986), H. 7
Y1  - 1986
SN  - 0733-8724
SP  - 818
EP  - 822
ER  - 
TY  - JOUR
A1  - Ferrein, Alexander
A1  - Böhnstedt, Lutz
A1  - Lakemeyer, Gerhard
T1  - Options in readylog reloaded -- generating decision-theoretic plan libraries in golog / Böhnstedt, Lutz ; Ferrein, Alexander ; Lakemeyer, Gerhard
JF  - KI 2007: advances in artificial intelligence : 30th Annual German Conference on AI, KI 2007, Osnabrück, Germany, September 10 - 13, 2007 ; proceedings
Y1  - 2007
SN  - 978-3-540-74564-8
N1  - Lecture Notes in Computer Science ; 4667
SP  - 352
EP  - 366
PB  - Springer
CY  - Berlin
ER  -