TY  - JOUR
A1  - Alt, Helmut
T1  - Sechsunddreißig Spielarten der Verrechung : die Behandlung von Tilgungs- und Zinszahlungen
JF  - Frankfurter Zeitung : Blick durch die Wirtschaft : Zeitung für Finanzen, Steuern, Recht und Management
Y1  - 1989
SP  - vom 12.9.1989
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  - 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  - BOOK
A1  - Alt, Helmut
A1  - Schumny, Harald
T1  - Schreiben, Zeichnen, Tabellieren : (TI-59, HP-41 C) (Vieweg-Programmbibliothek Taschenrechner ; 4) / Helmut Alt ; Harald Schumny [Hrsg.]
Y1  - 1983
SN  - 3-528-04233-8
PB  - Vieweg + Teubner
CY  - Wiesbaden
ER  - 
TY  - BOOK
A1  - Gromov, Viacheslav
A1  - Hüning, Felix
T1  - Schnelleinstieg mit dem Renesas RL78/G14 Starter Kit
Y1  - 2015
SN  - 978-3-645-10157-8
PB  - Franzis
CY  - Poing
ER  - 
TY  - JOUR
A1  - Heuermann, Holger
A1  - Schiek, Burkhard
T1  - Scattering Parameter Measurements of Microstrip Devices using the Double-LNN Calibration Technique
JF  - Conference proceedings : [Palais des Festivals et des Congrès Cannes, France, 5 - 8 September 1994]
Y1  - 1994
SN  - 0-9518032-5-5
N1  - European Microwave Conference <24, 1994, Cannes>
PB  - Nexus Business Communications
CY  - Swanley
ER  - 
TY  - CHAP
A1  - Gligorevic, Snjezana
A1  - Jost, T.
A1  - Walter, M.
T1  - Scatterer based airport surface channel model
T2  - IEEE/AIAA 28th Digital Avionics Systems Conference : DASC '09 ; 23 - 29 [i.e. 25 - 29] Oct. 2009, Orlando, Fla.
Y1  - 2009
SN  - 978-1-4244-4078-8
SP  - 4C2-1
EP  - 4C2-10
ER  - 
TY  - JOUR
A1  - Fiedler, Thomas M.
A1  - Ladd, Mark E.
A1  - Bitz, Andreas
T1  - SAR Simulations & Safety
JF  - NeuroImage
Y1  - 2017
U6  - http://dx.doi.org/10.1016/j.neuroimage.2017.03.035
SN  - 1053-8119
IS  - Epub ahead of print
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - CHAP
A1  - Bragard, Michael
A1  - Ronge, C.
A1  - De Doncker, R. W.
T1  - Sandwich design of high-power thyristor based devices with integrated MOSFET structure
T2  - Proceedings of the 2011 - 14th - European Conference on Power Electronics and Applications (EPE 2011) : Aug. 30, 2011 - Sept. 1, 2011, Birmingham, United Kingdom
Y1  - 2011
SN  - 978-1-61284-167-0 (Print)
SN  - 978-90-75815-15-3 (Online)
PB  - IEEE
CY  - Piscataway, NJ
ER  - 
TY  - JOUR
A1  - Fiedler, Thomas M.
A1  - Ladd, Mark E.
A1  - Clemens, Markus
A1  - Bitz, Andreas
T1  - Safety of subjects during radiofrequency exposure in ultra-high-field magnetic resonance imaging
JF  - IEEE Letters on Electromagnetic Compatibility Practice and Applications
N2  - Magnetic resonance imaging (MRI) is one of the most important medical imaging techniques. Since the introduction of MRI in the mid-1980s, there has been a continuous trend toward higher static magnetic fields to obtain i.a. a higher signal-to-noise ratio. The step toward ultra-high-field (UHF) MRI at 7 Tesla and higher, however, creates several challenges regarding the homogeneity of the spin excitation RF transmit field and the RF exposure of the subject. In UHF MRI systems, the wavelength of the RF field is in the range of the diameter of the human body, which can result in inhomogeneous spin excitation and local SAR hotspots. To optimize the homogeneity in a region of interest, UHF MRI systems use parallel transmit systems with multiple transmit antennas and time-dependent modulation of the RF signal in the individual transmit channels. Furthermore, SAR increases with increasing field strength, while the SAR limits remain unchanged. Two different approaches to generate the RF transmit field in UHF systems using antenna arrays close and remote to the body are investigated in this letter. Achievable imaging performance is evaluated compared to typical clinical RF transmit systems at lower field strength. The evaluation has been performed under consideration of RF exposure based on local SAR and tissue temperature. Furthermore, results for thermal dose as an alternative RF exposure metric are presented.
Y1  - 2020
SN  - 2637-6423
U6  - http://dx.doi.org/10.1109/LEMCPA.2020.3029747
VL  - 2
IS  - 3
SP  - 1
EP  - 8
PB  - IEEE
CY  - New York, NY
ER  - 
TY  - JOUR
A1  - Hartung, Frank
A1  - Baldo, N.
A1  - Horn, U.
A1  - Kampmann, M.
T1  - RTCP feedback based transmission rate control for 3G wireless multimedia streaming / Baldo, N. ; Horn, U. ; Kampmann, M. ; Hartung, F. ;
JF  - 15th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, 2004. PIMRC 2004.   Date:5-8 Sept. 2004 ; Vol. 3
Y1  - 2004
N1  - http://dx.doi.org/10.1109/PIMRC.2004.1368313
SP  - 1817
EP  - 1821
ER  - 
TY  - JOUR
A1  - Hüning, Felix
T1  - Robusti affidabili per le Sfide dell’automotive
JF  - Selezione di Elettronica (2008)
Y1  - 2008
SP  - 116
EP  - 117
PB  - -
ER  - 
TY  - JOUR
A1  - Heuermann, Holger
A1  - Schiek, Burkhard
T1  - Robuster Algorithmus zur Streuparameterbestimmung für systemfehlerkorrigierte Netzwerkanalysatoren
JF  - Kleinheubacher Berichte : Vorträge und Berichte der gemeinsamen Tagung des U.R.S.I.-Landesausschusses in der Bundesrepublik Deutschland / Hrsg.: Deutsche Telekom AG. 35. 1991 (1991)
Y1  - 1991
SP  - 555
EP  - 556
ER  - 
TY  - JOUR
A1  - Krause, Gregor
A1  - Forsyth, Paul A.
A1  - Peter, Till
T1  - Robuste Filter in der Energieversorgung / Paul A. Forsyth, Gregor Krause, Till Peter
JF  - ETZ. 114 (1993), H. 22
Y1  - 1993
N1  - Printausgabe: Aachen  Eupener Str.: 23 Z 133; Jülich: 63 ZS 035
SP  - 1382
EP  - 1385
ER  - 
TY  - JOUR
A1  - Ferrein, Alexander
A1  - Jacobs, Stefan
A1  - Schiffer, Stefan
A1  - Beck, Daniel
T1  - Robust Collision Avoidance in Unknown Domestic Environments  /  Jacobs, Stefan ; Ferrein, Alexander ; Schiffer, Stefan ; Beck, Daniel ; Lakemeyer, Gerhard
JF  - ROBOCUP 2009: ROBOT SOCCER WORLD CUP XIII
Y1  - 2009
N1  - Lecture Notes in Computer Science ; 5949
SP  - 116
EP  - 127
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Heuermann, Holger
A1  - Schiek, B.
T1  - Robust Algorithms for Txx Network Analyzer Self-Calibration Procedures
JF  - IEEE transactions on instrumentation and measurement : IM / Institute of Electrical and Electronics Engineers, Instrumentation and Measurement Group. 43 (1994), H. 1
Y1  - 1994
SN  - 0018-9456
SP  - 18
EP  - 23
ER  - 
TY  - CHAP
A1  - Ferrein, Alexander
T1  - Robots: challenges, chances and risks for solving 21st century problems
T2  - President’s Invitation Lecture / South African Institute of Electrical Engineers : May 21 & 22, 2015, University of Johannesburg
Y1  - 2015
SP  - 1
EP  - 45
ER  - 
TY  - CHAP
A1  - Czarnecki, Christian
A1  - Fettke, Peter
ED  - Czarnecki, Christian
ED  - Fettke, Peter
T1  - Robotic process automation :  Positioning, structuring, and framing the work
T2  - Robotic process automation : Management, technology, applications
N2  - Robotic process automation (RPA) has attracted increasing attention in research and practice. This chapter positions, structures, and frames the topic as an introduction to this book. RPA is understood as a broad concept that comprises a variety of concrete solutions. From a management perspective RPA offers an innovative approach for realizing automation potentials, whereas from a technical perspective the implementation based on software products and the impact of artificial intelligence (AI) and machine learning (ML) are relevant. RPA is industry-independent and can be used, for example, in finance, telecommunications, and the public sector. With respect to RPA this chapter discusses definitions, related approaches, a structuring framework, a research framework, and an inside as well as outside architectural view. Furthermore, it provides an overview of the book combined with short summaries of each chapter.
KW  - Robotic process automation
KW  - management
KW  - technology
KW  - applications
KW  - research framework
Y1  - 2021
SN  - 978-3-11-067668-6 (Print)
SN  - 978-3-11-067669-3 (PDF)
SN  - 978-3-11-067677-8 (ePub)
U6  - http://dx.doi.org/10.1515/9783110676693-202
SP  - 3
EP  - 24
PB  - De Gruyter
CY  - Oldenbourg
ER  - 
TY  - CHAP
A1  - Czarnecki, Christian
T1  - Robotergesteuerte Prozessautomatisierung
T2  - Enzyklopädie der Wirtschaftsinformatik
T2  - Robotic Process Automation (RPA)
Y1  - 2019
N1  - Online-Lexikon
SP  - 1
EP  - 3
PB  - Gito
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Ferrein, Alexander
A1  - Lakemeyer, Gerhard
T1  - Roboterfußball - Wissenschaft, die auch Spass macht / Ferrein, Alexander ; Lakemeyer, Gerhard
JF  - RWTH Themen (2006)
Y1  - 2006
SN  - 0179-079X
SP  - 36
EP  - 39
ER  - 
TY  - BOOK
A1  - Ferrein, Alexander
T1  - Robot controllers for highly dynamic environments with real-time constraints
Y1  - 2008
N1  - Aachen, Techn. Hochsch., Diss., 2007
ER  - 
TY  - JOUR
A1  - Ferrein, Alexander
T1  - Robot controllers for highly dynamic environments with real-time constraints
JF  - Künstliche Intelligenz : KI. 24 (2010), H. 2
Y1  - 2010
SN  - 1610-1987
SP  - 175
EP  - 178
ER  - 
TY  - JOUR
A1  - Ferrein, Alexander
A1  - Steinbauer, Gerald
A1  - McPhillips, Graeme
A1  - Potgieter, Anet
T1  - RoboCup Standard Platform League - Team Zadeat : an intercontinental research effort
Y1  - 2008
SP  - 1
EP  - 7
ER  - 
TY  - CHAP
A1  - Niemüller, Tim
A1  - Ewert, Daniel
A1  - Reuter, Sebastian
A1  - Ferrein, Alexander
A1  - Jeschke, Sabina
A1  - Lakemeyer, Gerhard
T1  - RoboCup logistics league sponsored by festo: A competitive factory automation testbed
T2  - RoboCup 2013: Robot World Cup XVII :  Eindhoven; Netherlands; 1 July 2013 through 1 July 2013. (Lecture notes in computer science ; 8371)
N2  - A new trend in automation is to deploy so-called cyber-physical systems (CPS) which combine computation with physical processes. The novel RoboCup Logistics League Sponsored by Festo (LLSF) aims at such CPS logistic scenarios in an automation setting. A team of robots has to produce products from a number of semi-finished products which they have to machine during the game. Different production plans are possible and the robots need to recycle scrap byproducts. This way, the LLSF is a very interesting league offering a number of challenging research questions for planning, coordination, or communication in an application-driven scenario. In this paper, we outline the objectives of the LLSF and present steps for developing the league further towards a benchmark for logistics scenarios for CPS. As a major milestone we present the new automated referee system which helps in governing the game play as well as keeping track of the scored points in a very complex factory scenario.
Y1  - 2014
SN  - 978-3-662-44467-2 (Print) 978-3-662-44468-9 (Online)
SP  - 336
EP  - 347
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Ferrein, Alexander
A1  - Marais, Stephen
A1  - Potgieter, Anet
A1  - Steinbauer, Gerald
T1  - RoboCup Junior: A vehicle for S&T education in Africa?
Y1  - 2011
SN  - 978-1-61284-992-8
N1  - AFRICON, 2011
SP  - 1
EP  - 6
PB  - IEEE
CY  - New York
ER  - 
TY  - JOUR
A1  - Wolf, Martin
T1  - Risiko- und Maßnahmenmanagement bei der Computervalidierung
JF  - Pharma-Technologie-Journal (2003)
Y1  - 2003
SN  - 0931-9700
SP  - 50
EP  - 62
PB  - -
ER  - 
TY  - CHAP
A1  - Bonney, Gregor
A1  - Nagel, Stefan
A1  - Schuba, Marko
ED  - Schartner, P.
T1  - Risiko Smart Home – Angriff auf ein Babymonitorsystem
T2  - Proceedings of DACH Security 2016, Klagenfurt, Austria, September 2016
N2  - Unser Zuhause wird zunehmend intelligenter. Smart Homes bieten uns die Steuerung von Haus- oder Unterhaltungstechnik bequem vom Smartphone aus. Junge Familien nutzen die Technologie, um mittels vernetzten Babymonitorsystemen ihren Nachwuchs von überall aus im Blick zu haben. Davon auszugehen, dass solche Systeme mit einem Fokus auf Sicherheit entwickelt wurden, um die sehr persönlichen Daten zu schützen, ist jedoch ein Trugschluss. Die Untersuchung eines handelsüblichen und keineswegs billigen Systems zeigt, dass die Geräte sehr einfach kompromittiert und missbraucht werden können.
Y1  - 2016
SP  - 371
EP  - 378
ER  - 
TY  - JOUR
A1  - Samm, Doris
A1  - Faissner, H.
A1  - Heinrigs, W.
A1  - Latsch, C.
T1  - Richtungsselektive Zähleranordnung zur Messung der Masse Axion-ähnlicher Teilchen / Faissner, H. ; Heinrigs, W. ; Latsch, C.; Preussger, A.; Samm, D.
JF  - Verhandlungen der Deutschen Physikalischen Gesellschaft. 18 (1983), H. 6
Y1  - 1983
N1  - Frühjahrstagung ... des Fachausschusses Kernphysik und Hochenergiephysik, Sektion B: Teilchenphysik / Deutsche Physikalische Gesellschaft / Wuppertal (Germany), 28-30 Mar 1983
SP  - 1213
EP  - 1213
ER  - 
TY  - CHAP
A1  - Bitz, Andreas
A1  - Kobus, Thiele
A1  - Scheenen, Tom W. J.
A1  - Ladd, Mark E.
T1  - RF Safety of the Combination of a 31P Tx/Rx Endorectal Coil & a 1H Tx/Rx Body Array for 31P MRSI of the Prostate at 7T (311.)
T2  - 20th Annual ISMRM scientific meeting and exhibition 2012 : Melbourne, Australia, 5 - 11 May 2012
Y1  - 2013
SN  - 978-1-62276-943-8
SN  - 1545-4428
IS  - Volume 1
SP  - 311
PB  - Curran
CY  - Red Hook, NY
ER  - 
TY  - JOUR
A1  - Fiedler, Thomas M.
A1  - Ladd, Mark E.
A1  - Bitz, Andreas
T1  - RF safety assessment of a bilateral four-channel transmit/receive 7 Tesla breast coil: SAR versus temperature limits
JF  - Medical Physics
Y1  - 2017
U6  - http://dx.doi.org/10.1002/mp.12034
N1  - This article is corrected by:
Errata: Erratum: “RF safety assessment of a bilateral four-channel transmit/receive 7 Tesla breast coil: SAR versus tissue temperature limits” [Med. Phys. 44(1), 143–157 (2017)] Volume 44, Issue 2, 772
VL  - 44
IS  - 1
SP  - 143
EP  - 157
ER  - 
TY  - CHAP
A1  - Allal, D.
A1  - Bannister, R.
A1  - Buisman, K.
A1  - Capriglione, D.
A1  - Di Capua, G.
A1  - García-Patrón, M.
A1  - Gatzweiler, Thomas
A1  - Gellersen, F.
A1  - Harzheim, Thomas
A1  - Heuermann, Holger
A1  - Hoffmann, J.
A1  - Izbrodin, A.
A1  - Kuhlmann, K.
A1  - Lahbacha, K.
A1  - Maffucci, A.
A1  - Miele, G.
A1  - Mubarak, F.
A1  - Salter, M.
A1  - Pham, T.D.
A1  - Sayegh, A.
A1  - Singh, D.
A1  - Stein, F.
A1  - Zeier, M.
T1  - RF measurements for future communication applications: an overview
T2  - 2022 IEEE International Symposium on Measurements & Networking (M&N)
N2  - In this paper research activities developed within the FutureCom project are presented. The project, funded by the European Metrology Programme for Innovation and Research (EMPIR), aims at evaluating and characterizing: (i) active devices, (ii) signal- and power integrity of field programmable gate array (FPGA) circuits, (iii) operational performance of electronic circuits in real-world and harsh environments (e.g. below and above ambient temperatures and at different levels of humidity), (iv) passive inter-modulation (PIM) in communication systems considering different values of temperature and humidity corresponding to the typical operating conditions that we can experience in real-world scenarios. An overview of the FutureCom project is provided here, then the research activities are described.
KW  - FPGA
KW  - signal integrity
KW  - power integrity
KW  - passive inter-modulation
KW  - metrological characterization
Y1  - 2022
SN  - 978-1-6654-8362-9
SN  - 978-1-6654-8363-6
U6  - http://dx.doi.org/10.1109/MN55117.2022.9887740
SN  - 2639-5061
SN  - 2639-507X
N1  - 2022 IEEE International Symposium on Measurements & Networking (M&N), 18-20 July 2022, Padua, Italy.
SP  - 1
EP  - 6
PB  - IEEE
ER  - 
TY  - CHAP
A1  - Bitz, Andreas
A1  - Streckert, J.
A1  - Hansen, V.W.
A1  - Buschmann, J.
T1  - RF exposure of non restrained animals in an overmoded radial waveguide
T2  - 22nd BEMS Annual Meeting, Munich, Germany, 2000
Y1  - 2000
SP  - 63
PB  - Bioelectromagnetics Society
CY  - Frederick, MD
ER  - 
TY  - JOUR
A1  - Hansen, Volkert W.
A1  - Bitz, Andreas
A1  - Streckert, Joachim R.
T1  - RF Exposure of Biological Systems in Radial Waveguides
JF  - IEEE Transactions on Electromagnetic Compatibility
Y1  - 1999
U6  - http://dx.doi.org/10.1109/15.809852
SN  - 1558-187X
VL  - 41
IS  - 4
SP  - 487
EP  - 493
ER  - 
TY  - JOUR
A1  - Orzada, Stephan
A1  - Maderwald, Stefan
A1  - Poser, Benedikt Andreas
A1  - Bitz, Andreas
A1  - Quick, Harald H.
A1  - Ladd, Mark E.
T1  - RF excitation using time interleaved acquisition of modes (TIAMO) to address B1 inhomogeneity in high-field MRI
JF  - Magnetic Resonance in Medicine
N2  - As the field strength and, therefore, the operational frequency in MRI is increased, the wavelength approaches the size of the human head/body, resulting in wave effects, which cause signal decreases and dropouts. Several multichannel approaches have been proposed to try to tackle these problems, including RF shimming, where each element in an array is driven by its own amplifier and modulated with a certain (constant) amplitude and phase relative to the other elements, and Transmit SENSE, where spatially tailored RF pulses are used. In this article, a relatively inexpensive and easy to use imaging scheme for 7 Tesla imaging is proposed to mitigate signal voids due to B1 field inhomogeneity. Two time-interleaved images are acquired using a different excitation mode for each. By forming virtual receive elements, both images are reconstructed together using GRAPPA to achieve a more homogeneous image, with only small SNR and SAR penalty in head and body imaging at 7 Tesla.
Y1  - 2010
U6  - http://dx.doi.org/10.1002/mrm.22527
SN  - 1522-2594
VL  - 64
IS  - 2
SP  - 327
EP  - 333
PB  - Wiley-Liss
CY  - New York
ER  - 
TY  - JOUR
A1  - Hagemann, Hans-Jürgen
A1  - Hennings, D.
T1  - Reversible Weight change of acceptor-doped BaTiO3. Hagemann, H. J.; Hennings, D.
JF  - Journal of the American Ceramic Society. 64 (1981)
Y1  - 1981
SN  - 0002-7820
SP  - 590
EP  - 594
ER  - 
TY  - JOUR
A1  - Heuermann, Holger
A1  - Schiek, B.
T1  - Results of network analyzer measurements with leakage errors-corrected with direct calibration techniques
JF  - IEEE transactions on instrumentation and measurement : IM / Institute of Electrical and Electronics Engineers, Instrumentation and Measurement Group. 46 (1997), H. 5
Y1  - 1997
SN  - 0018-9456
SP  - 1120
EP  - 1127
ER  - 
TY  - JOUR
A1  - Heuermann, Holger
A1  - Schiek, Burkhard
T1  - Results of Network Analyzer Measurements with Leakage Errors Corrected with the TMS-15-Term Procedure
Y1  - 1994
N1  - 1994 IEEE MTT-S International Microwave Symposium digest : May 23 - 27, 1994, San Diego Convention Center, San Diego, California / H. J. Kuno, ed.
SP  - 1361
EP  - 1364
ER  - 
TY  - JOUR
A1  - Heuermann, Holger
A1  - Baumann, F.-M.
A1  - Fauth, G.
A1  - Albert, M.
T1  - Results of Network Analyzer Measurements with Leakage Errors Corrected with the TMS-15-Term Procedure
JF  - On-Line Moisture Analysis of Raw Coal
Y1  - 1994
N1  - 1993 International Symposium on On-Line Analysis of Coal : Vienna ; [proceedings].
SP  - 1361
EP  - 1364
ER  - 
TY  - JOUR
A1  - Altherr, Lena
A1  - Brötz, Nicolas
A1  - Dietrich, Ingo
A1  - Gally, Tristan
A1  - Geßner, Felix
A1  - Kloberdanz, Hermann
A1  - Leise, Philipp
A1  - Pelz, Peter Franz
A1  - Schlemmer, Pia
A1  - Schmitt, Andreas
T1  - Resilience in mechanical engineering - a concept for controlling uncertainty during design, production and usage phase of load-carrying structures
JF  - Applied Mechanics and Materials
N2  - Resilience as a concept has found its way into different disciplines to describe the ability of an individual or system to withstand and adapt to changes in its environment. In this paper, we provide an overview of the concept in different communities and extend it to the area of mechanical engineering. Furthermore, we present metrics to measure resilience in technical systems and illustrate them by applying them to load-carrying structures. By giving application examples from the Collaborative Research Centre (CRC) 805, we show how the concept of resilience can be used to control uncertainty during different stages of product life.
Y1  - 2018
SN  - 1662-7482
U6  - http://dx.doi.org/10.4028/www.scientific.net/AMM.885.187
VL  - 885
SP  - 187
EP  - 198
PB  - Trans Tech Publications
CY  - Bäch
ER  - 
TY  - CHAP
A1  - Lorenz, Imke-Sophie
A1  - Altherr, Lena
A1  - Pelz, Peter F.
T1  - Resilience enhancement of critical infrastructure – graph-theoretical resilience analysis of the water distribution system in the German city of Darmstadt
T2  - 14th WCEAM Proceedings
N2  - Water suppliers are faced with the great challenge of achieving high-quality and, at the same time, low-cost water supply. Since climatic and demographic influences will pose further challenges in the future, the resilience enhancement of water distribution systems (WDS), i.e. the enhancement of their capability to withstand and recover from disturbances, has been in particular focus recently. To assess the resilience of WDS, graph-theoretical metrics have been proposed. In this study, a promising approach is first physically derived analytically and then applied to assess the resilience of the WDS for a district in a major German City. The topology based resilience index computed for every consumer node takes into consideration the resistance of the best supply path as well as alternative supply paths. This resistance of a supply path is derived to be the dimensionless pressure loss in the pipes making up the path. The conducted analysis of a present WDS provides insight into the process of actively influencing the resilience of WDS locally and globally by adding pipes. The study shows that especially pipes added close to the reservoirs and main branching points in the WDS result in a high resilience enhancement of the overall WDS.
KW  - Resilient infrastructure
KW  - Resilience assessment
KW  - Resilience metric graph theory
KW  - Water distribution system
KW  - Case study
Y1  - 2020
SN  - 978-3-030-64228-0
SN  - 978-3-030-64227-3
U6  - http://dx.doi.org/10.1007/978-3-030-64228-0_13
N1  - 14th WCEAM Proceedings. World Congress on Engineering Asset Management, 28-31 July 2019, Singapore

Part of the Lecture Notes in Mechanical Engineering book series (LNME)
SP  - 137
EP  - 149
PB  - Springer
CY  - Cham
ER  - 
TY  - CHAP
A1  - Altherr, Lena
A1  - Leise, Philipp
T1  - Resilience as a concept for mastering uncertainty
T2  - Mastering Uncertainty in Mechanical Engineering
Y1  - 2021
SN  - 978-3-030-78353-2
U6  - http://dx.doi.org/10.1007/978-3-030-78354-9
N1  - Unterkapitel 6.3.1 des Kapitels "Strategies for Mastering Uncertainty"
SP  - 412
EP  - 417
PB  - Springer
CY  - Cham
ER  - 
TY  - CHAP
A1  - Zähl, Philipp M.
A1  - Biewendt, Marcel
A1  - Wolf, Martin
A1  - Eggert, Mathias
T1  - Requirements for Competence Developing Games in the Environment of SE Competence Development
T2  - Angewandte Forschung in der Wirtschaftsinformatik 2022
N2  - Many of today’s factors make software development more and more complex, such as time pressure, new technologies, IT security risks, et cetera. Thus, a good preparation of current as well as future software developers in terms of a good software engineering education becomes progressively important. As current research shows, Competence Developing Games (CDGs) and Serious Games can offer a potential solution.

This paper identifies the necessary requirements for CDGs to be conducive in principle, but especially in software engineering (SE) education. For this purpose, the current state of research was summarized in the context of a literature review. Afterwards, some of the identified requirements as well as some additional requirements were evaluated by a survey in terms of subjective relevance.
KW  - software engineering
KW  - requirements
KW  - competence developing games
KW  - systematic literature review
Y1  - 2022
SN  - 978-3-95545-409-8
U6  - http://dx.doi.org/10.30844/AKWI_2022_05
N1  - Tagungsband zur 35. Jahrestagung des Arbeitskreises Wirtschaftsinformatik an Hochschulen für Angewandte Wissenschaften im deutschsprachigen Raum (AKWI) vom 11.09. bis 13.09.2022, ausgerichtet von der Hochschule für Technik und Wirtschaft Berlin (HTW Berlin) und der Hochschule für Wirtschaft und Recht Berlin (HWR Berlin)
SP  - 73
EP  - 88
PB  - GITO
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Ferrein, Alexander
A1  - Mies, Christoph
A1  - Lakemeyer, Gerhard
T1  - Repairing Decision-Theoretic Policies Using Goal-Oriented Planning / Mies, Christoph ; Ferrein, Alexander ; Lakemeyer, Gerhard
JF  - KI 2008: Advances in Artificial Intelligence : 31st Annual German Conference on AI, KI 2008, Kaiserslautern, Germany, September 23-26, 2008. Proceedings
Y1  - 2008
SN  - 978-3-540-85844-7
N1  - Lecture Notes in Computer Science ; 5243
SP  - 267
EP  - 275
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Alt, Helmut
T1  - Renditevergleich zwischen Immobilien und Festverzinslichen
JF  - Die Bank
Y1  - 1992
SN  - 0342-3182
IS  - H. 2
SP  - 91
EP  - 92
ER  - 
TY  - JOUR
A1  - Umutlu, Lale
A1  - Orzada, Stephan
A1  - Kinner, Sonja
A1  - Maderwald, Stefan
A1  - Bronte, Irina
A1  - Bitz, Andreas
A1  - Kraff, Oliver
A1  - Ladd, Susanne C.
A1  - Antoch, Gerald
A1  - Ladd, Mark E.
A1  - Quick, Harald H.
A1  - Lauenstein, Thomas C.
T1  - Renal imaging at 7 Tesla: preliminary results
JF  - European Radiology
N2  - Objective
To investigate the feasibility of 7T MR imaging of the kidneys utilising a custom-built 8-channel transmit/receive radiofrequency body coil.

Methods
In vivo unenhanced MR was performed in 8 healthy volunteers on a 7T whole-body MR system. After B0 shimming the following sequences were obtained: 1) 2D and 3D spoiled gradient-echo sequences (FLASH, VIBE), 2) T1-weighted 2D in and opposed phase 3) True-FISP imaging and 4) a T2-weighted turbo spin echo (TSE) sequence. Visual evaluation of the overall image quality was performed by two radiologists.

Results
Renal MRI at 7T was feasible in all eight subjects. Best image quality was found using T1-weighted gradient echo MRI, providing high anatomical details and excellent conspicuity of the non-enhanced vasculature. With successful shimming, B1 signal voids could be effectively reduced and/or shifted out of the region of interest in most sequence types. However, T2-weighted TSE imaging remained challenging and strongly impaired because of signal heterogeneities in three volunteers.

Conclusion
The results demonstrate the feasibility and diagnostic potential of dedicated 7T renal imaging. Further optimisation of imaging sequences and dedicated RF coil concepts are expected to improve the acquisition quality and ultimately provide high clinical diagnostic value.
Y1  - 2011
SN  - 1432-1084
VL  - 21
IS  - 4
SP  - 841
EP  - 849
PB  - Springer
CY  - Berlin
ER  - 
TY  - BOOK
A1  - Siepmann, Thomas
T1  - Reibmomente in Zylinderrollenlagern für Planetenräder
Y1  - 1987
SN  - 3-89194-068-8
N1  - Schriftenreihe / Ruhr-Universität Bochum, Fakultät für Maschinenbau, Institut für Konstruktionstechnik ; 87,4; Zugl.: Bochum, Univ., Diss., 1987
CY  - Bochum
ER  - 
TY  - JOUR
A1  - Lepers, Heinrich
A1  - Rake, H.
A1  - Pütter, L.
T1  - Regelung der Qualitaet beim Brennen von Zementklinker
JF  - Regelungstechnische Praxis : rtp
Y1  - 1976
SN  - 0340-4730
VL  - 18
IS  - 4
SP  - 87
EP  - 91
PB  - Oldenbourg
CY  - München
ER  - 
TY  - JOUR
A1  - Czarnecki, Christian
A1  - Winkelmann, Axel
A1  - Spiliopoulou, Myra
T1  - Referenzprozessabläufe für Telekommunikationsunternehmen: Eine Erweiterung des eTOM-Modells
JF  - Wirtschaftsinformatik
N2  - Der Telekommunikationsmarkt erfährt substanzielle Veränderungen. Neue Geschäftsmodelle, innovative Dienstleistungen und Technologien erfordern Reengineering, Transformation und Prozessstandardisierung. Mit der Enhanced Telecom Operation Map (eTOM) bietet das TM Forum ein international anerkanntes de facto Referenz-Prozess-Framework basierend auf spezifischen Anforderungen und Ausprägungen der Telekommunikationsindustrie an. Allerdings enthält dieses Referenz-Framework nur eine hierarchische Sammlung von Prozessen auf unterschiedlichen Abstraktionsebenen. Eine Kontrollsicht verstanden als sequenzielle Anordnung von Aktivitäten und daraus resultierend ein realer Prozessablauf fehlt ebenso wie eine Ende-zu-Ende-Sicht auf den Kunden. In diesem Artikel erweitern wir das eTOM-Referenzmodell durch Referenzprozessabläufe, in welchen wir das Wissen über Prozesse in Telekommunikationsunternehmen abstrahieren und generalisieren. Durch die Referenzprozessabläufe werden Unternehmen bei dem strukturierten und transparenten (Re-)Design ihrer Prozesse unterstützt. Wir demonstrieren die Anwendbarkeit und Nützlichkeit unserer Referenzprozessabläufe in zwei Fallstudien und evaluieren diese anhand von Kriterien für die Bewertung von Referenzmodellen. Die Referenzprozessabläufe wurden vom TM Forum in den Standard aufgenommen und als Teil von eTOM Version 9 veröffentlicht. Darüber hinaus diskutieren wir die Komponenten unseres Ansatzes, die auch außerhalb der Telekommunikationsindustrie angewandt werden können.
KW  - Prozessstandardisierung
KW  - Prozessabläufe
KW  - Prozessmodellierung
KW  - Referenzmodellierung
KW  - eTOM
Y1  - 2013
U6  - http://dx.doi.org/10.1007/s11576-013-0351-9
SN  - 1861-8936
VL  - 55
IS  - 2
SP  - 83
EP  - 97
PB  - Springer Fachmedien
CY  - Wiesbaden
ER  - 
TY  - BOOK
A1  - Czarnecki, Christian
A1  - Dietze, Christian
T1  - Reference architecture for the telecommunications industry:  Transformation of strategy, organization, processes, data, and applications
N2  - This book reflects the tremendous changes in the telecommunications industry in the course of the past few decades – shorter innovation cycles, stiffer competition and new communication products. It analyzes the transformation of processes, applications and network technologies that are now expected to take place under enormous time pressure. The International Telecommunication Union (ITU) and the TM Forum have provided reference solutions that are broadly recognized and used throughout the value chain of the telecommunications industry, and which can be considered the de facto standard. The book describes how these reference solutions can be used in a practical context: it presents the latest insights into their development, highlights lessons learned from numerous international projects and combines them with well-founded research results in enterprise architecture management and reference modeling. The complete architectural transformation is explained, from the planning and set-up stage to the implementation. Featuring a wealth of examples and illustrations, the book offers a valuable resource for telecommunication professionals, enterprise architects and project managers alike.
KW  - Enterprise architecture
KW  - Enterprise transformation
KW  - Reference modelling
KW  - TM Forum
KW  - Telecommunication
Y1  - 2017
SN  - 978-3-319-46755-9 (Print)
SN  - 978-3-319-83578-5 (Print)
SN  - 978-3-319-46757-3 (PDF)
U6  - http://dx.doi.org/10.1007/978-3-319-46757-3
PB  - Springer
CY  - Cham
ER  - 
TY  - JOUR
A1  - Faßbender, Heinz
T1  - Reengineering an Ada95-programmed command and control information system by using UML
JF  - Proceedings : September 30 - October 4, 2001, Twin Cities, Best Western The Thunderbird Hotel & Convention Center, Bloomington, MN, USA / ACM SIGAda Annual International Conference (SIGAda 2001)
Y1  - 2001
SN  - 1-58113-392-8
N1  - (Ada letters ; 21,4)
SP  - 53
EP  - 60
PB  - ACM
CY  - New York, NY
ER  -