TY  - CHAP
A1  - Becker, Tim
A1  - Bragard, Michael
T1  - Low-Voltage DC Training Lab for Electric Drives - Optimizing the Balancing Act Between High Student Throughput and Individual Learning Speed
T2  - 2024 IEEE Global Engineering Education Conference (EDUCON)
N2  - After a brief introduction of conventional laboratory structures, this work focuses on an innovative and universal approach for a setup of a training laboratory for electric machines and drive systems. The novel approach employs a central 48 V DC bus, which forms the backbone of the structure. Several sets of DC machine, asynchronous machine and synchronous machine are connected to this bus. The advantages of the novel system structure are manifold, both from a didactic and a technical point of view: Student groups can work on their own performance level in a highly parallelized and at the same time individualized way. Additional training setups (similar or different) can easily be added. Only the total power dissipation has to be provided, i.e. the DC bus balances the power flow between the student groups. Comparative results of course evaluations of several cohorts of students are shown.
KW  - Synchronous machines
KW  - Power dissipation
KW  - Throughput
KW  - Low voltage
KW  - DC machines
KW  - Manifolds
KW  - Training
Y1  - 2024
U6  - https://doi.org/10.1109/EDUCON60312.2024.10578902
SN  - 2165-9559
SN  - 2165-9567 (eISSN)
N1  - 2024 IEEE Global Engineering Education Conference (EDUCON), 08-11 May 2024, Kos Island, Greece
PB  - IEEE
CY  - New York, NY
ER  - 
TY  - JOUR
A1  - Becker, Meike
A1  - Frauenrath, Tobias
A1  - Hezel, Fabian
A1  - Krombach, Gabriele A.
A1  - Kremer, Ute
A1  - Koppers, Benedikt
A1  - Butenweg, Christoph
A1  - Goemmel, Andreas
A1  - Utting, Jane F.
A1  - Schulz-Menger, Jeanette
A1  - Niendorf, Thoralf
T1  - Comparison of left ventricular function assessment using phonocardiogram- and electrocardiogram-triggered 2D SSFP CINE MR imaging at 1.5 T and 3.0 T
JF  - European Radiology
N2  - Objective: As high-field cardiac MRI (CMR) becomes more widespread the propensity of ECG to interference from electromagnetic fields (EMF) and to magneto-hydrodynamic (MHD) effects increases and with it the motivation for a CMR triggering alternative. This study explores the suitability of acoustic cardiac triggering (ACT) for left ventricular (LV) function assessment in healthy subjects (n=14). Methods: Quantitative analysis of 2D CINE steady-state free precession (SSFP) images was conducted to compare ACT’s performance with vector ECG (VCG). Endocardial border sharpness (EBS) was examined paralleled by quantitative LV function assessment. Results: Unlike VCG, ACT provided signal traces free of interference from EMF or MHD effects. In the case of correct Rwave recognition, VCG-triggered 2D CINE SSFP was immune to cardiac motion effects—even at 3.0 T. However, VCG-triggered 2D SSFP CINE imaging was prone to cardiac motion and EBS degradation if R-wave misregistration occurred. ACT-triggered acquisitions yielded LV parameters (end-diastolic volume (EDV), endsystolic volume (ESV), stroke volume (SV), ejection fraction (EF) and left ventricular mass (LVM)) comparable with those derived fromVCG-triggered acquisitions (1.5 T: ESVVCG=(56± 17) ml, EDVVCG=(151±32)ml, LVMVCG=(97±27) g, SVVCG=(94± 19)ml, EFVCG=(63±5)% cf. ESVACT= (56±18) ml, EDVACT=(147±36) ml, LVMACT=(102±29) g, SVACT=(91± 22) ml, EFACT=(62±6)%; 3.0 T: ESVVCG=(55±21) ml, EDVVCG=(151±32) ml, LVMVCG=(101±27) g, SVVCG=(96±15) ml, EFVCG=(65±7)% cf. ESVACT=(54±20) ml, EDVACT=(146±35) ml, LVMACT= (101±30) g, SVACT=(92±17) ml, EFACT=(64±6)%). Conclusions: ACT’s intrinsic insensitivity to interference from electromagnetic fields renders
KW  - Magnetic resonance imaging (MRI)
KW  - MR-stethoscope
KW  - Magnetic field strength
KW  - Left ventriular function
KW  - Cardiovascular MRI
Y1  - 2010
U6  - https://doi.org/10.1007/s00330-009-1676-z
SN  - 1432-1084 (Onlineausgabe)
SN  - 0938-7994 (Druckausgabe)
VL  - 20
SP  - 1344
EP  - 1355
PB  - Springer
CY  - Berlin
ER  - 
TY  - CHAP
A1  - Becker, Jörg
A1  - Knackstedt, Ralf
A1  - Eggert, Mathias
A1  - Fleischer, Stefan
T1  - Fachkonzeptionelle Modellierung von Berichtspflichten in Finanzaufsicht und Verwaltung mit dem H2-Toolset
T2  - Auf dem Weg zu einer offenen, smarten und vernetzten Verwaltungskultur
Y1  - 2012
SN  - 978-3-88579-291-8
SP  - 83
EP  - 94
PB  - Gesellschaft für Informatik
CY  - Bonn
ER  - 
TY  - CHAP
A1  - Becker, Jörg
A1  - Eggert, Mathias
A1  - Winkelmann, Axel
A1  - Knackstedt, Ralf
T1  - Towards a Contingency Theory based Model of the Influence of Regulation on MIS
T2  - Proceedings of the Seventeenth Americas Conference on Information Systems, Detroit, Michigan August 4th -7 th 2011
Y1  - 2011
ER  - 
TY  - CHAP
A1  - Becker, Jörg
A1  - Eggert, Mathias
A1  - Schwittay, Sebastian
ED  - Mattfeld, Dirk Christian
T1  - How to Evaluate the Practical Relevance of Business Process Compliance Checking Approaches?
T2  - Multikonferenz Wirtschaftsinformatik 2012 - Tagungsband der MKWI 2012
Y1  - 2012
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:084-13011115376
SP  - 849
EP  - 862
PB  - Institut für Wirtschaftsinformatik
CY  - Braunschweig
ER  - 
TY  - CHAP
A1  - Becker, Jörg
A1  - Eggert, Mathias
A1  - Saat, Jan
A1  - Dirding, Philipp
T1  - The Influence of Regulation on Data Warehouse Engineering – Investigating an IT Consulting Case in the Financial Service Industry
T2  - Proceedings of the Nineteenth Americas Conference on Information Systems, Chicago, Illinois, August 15-17, 2013.
Y1  - 2013
SP  - 1
EP  - 8
ER  - 
TY  - CHAP
A1  - Becker, Jörg
A1  - Eggert, Mathias
A1  - Knackstedt, Ralf
T1  - Forschungslandkarte Rechtsinformatik und Informationsrecht
T2  - Proceedings of the Internationales Rechtsinformatik Sysmposium (IRIS), Salzburg, Österreich, 2010
Y1  - 2010
ER  - 
TY  - CHAP
A1  - Becker, Jörg
A1  - Eggert, Mathias
A1  - Knackstedt, Ralf
T1  - Der Beitrag der Referenzmodellierung zur Compliance im Reporting des Finanzsektors
T2  - Business Intelligence Operational Structures: Towards the Design of a Reference Process Map
Y1  - 2010
N1  - Zweites Forschungskolloquium Business Intelligence (FKBI 10)
der GI-Fachgruppe Management Support Systems
in Zusammenarbeit mit dem Competence Center
for Business Intelligence an der Technischen Universität Dresden
am 17. und 18. September 2010
in Dresden
SP  - 11
EP  - 18
ER  - 
TY  - CHAP
A1  - Becker, Jörg
A1  - Eggert, Mathias
A1  - Heddier, Marcel
A1  - Knackstedt, Ralf
T1  - Merging Conceptual Modeling and Law for Legally Compliant Information Systems Design - A Framework-Based Research Agenda
T2  - 45th Hawaii International Conference on System Sciences 2012
Y1  - 2012
SN  - 978-0-7695-4525-7
U6  - https://doi.org/10.1109/HICSS.2012.428
SP  - 5241
EP  - 5248
ER  - 
TY  - CHAP
A1  - Becker, Jörg
A1  - Eggert, Mathias
A1  - Fleischer, Stefan
A1  - Knackstedt, Ralf
T1  - How to Teach Regulatory Compliant Data Warehouse Engineering?
T2  - Proceedings of the Nineteenth Americas Conference on Information Systems, Chicago, Illinois, August 15-17, 2013.
Y1  - 2013
N1  - AMCIS 2013 Proceedings
ER  - 
TY  - CHAP
A1  - Becker, Jörg
A1  - Eggert, Mathias
A1  - Fleischer, Stefan
A1  - Heddier, Marcel
A1  - Knackstedt, Ralf
T1  - Data Warehouse Design and Legal Visualization – The Applicability of H2 for Reporting
T2  - Proceedings of the 23rd Australasian Conference on Information Systems 2012
Y1  - 2012
N1  - Australasian Conference on Information Systems (23rd : 2012 : Geelong, Victoria)
ER  - 
TY  - CHAP
A1  - Becker, Jörg
A1  - Eggert, Mathias
A1  - Bruning, Dennis
A1  - Saat, Jan
T1  - Applicability of Business Process Model Analysis Approaches – A Case Study in Financial Services Consulting
T2  - Wirtschaftsinformatik Proceedings 2013
Y1  - 2013
N1  - 11th International Conference on Wirtschaftsinformatik,
27th February – 01st March 2013, Leipzig, Germany
SP  - 1181
EP  - 1195
ER  - 
TY  - JOUR
A1  - Becker, Jörg
A1  - Delfmann, Patrick
A1  - Eggert, Mathias
A1  - Schwittay, Sebastian
T1  - Generalizability and Applicability of Model-Based Business Process Compliance-Checking Approaches — A State-of-the-Art Analysis and Research Roadmap
JF  - Business Research : BuR
N2  - With a steady increase of regulatory requirements for business processes, automation support of compliance management is a field garnering increasing attention in Information Systems research. Several approaches have been developed to support compliance checking of process models. One major challenge for such approaches is their ability to handle different modeling techniques and compliance rules in order to enable widespread adoption and application. Applying a structured literature search strategy, we reflect and discuss compliance-checking approaches in order to provide an insight into their generalizability and evaluation. The results imply that current approaches mainly focus on special modeling techniques and/or a restricted set of types of compliance rules. Most approaches abstain from real-world evaluation which raises the question of their practical applicability. Referring to the search results, we propose a roadmap for further research in model-based business process compliance checking.
Y1  - 2012
U6  - https://doi.org/10.1007/BF03342739
SN  - 1866-8658
VL  - 5
IS  - 2
SP  - 221
EP  - 247
PB  - Springer
CY  - Heidelberg
ER  - 
TY  - JOUR
A1  - Becker, Jörg
A1  - Delfmann, Patrick
A1  - Dietrich, Hanns-Alexander
A1  - Steinhorst, Matthias
A1  - Eggert, Mathias
T1  - Business Process Compliance Checking — Applying and Evaluating a Generic Pattern Matching Approach for Conceptual Models in the Financial Sector
JF  - Information Systems Frontiers
N2  - Given the strong increase in regulatory requirements for business processes the management of business process compliance becomes a more and more regarded field in IS research. Several methods have been developed to support compliance checking of conceptual models. However, their focus on distinct modeling languages and mostly linear (i.e., predecessor-successor related) compliance rules may hinder widespread adoption and application in practice. Furthermore, hardly any of them has been evaluated in a real-world setting. We address this issue by applying a generic pattern matching approach for conceptual models to business process compliance checking in the financial sector. It consists of a model query language, a search algorithm and a corresponding modelling tool prototype. It is (1) applicable for all graph-based conceptual modeling languages and (2) for different kinds of compliance rules. Furthermore, based on an applicability check, we (3) evaluate the approach in a financial industry project setting against its relevance for decision support of audit and compliance management tasks.
Y1  - 2016
U6  - https://doi.org/10.1007/s10796-014-9529-y
SN  - 1572-9419
VL  - 18
IS  - 2
SP  - 359
EP  - 405
PB  - Springer
CY  - Berlin
ER  - 
TY  - CHAP
A1  - Becker, Jörg
A1  - Bergener, Philipp
A1  - Delfmann, Patrick
A1  - Eggert, Mathias
A1  - Weiss, Burkhard
T1  - Supporting Business Process Compliance in Financial Institutions - A Model-Driven Approach
T2  - Proceedings of the 10th International Conference on Wirtschaftsinformatik : 16 - 18 February 2011, Zurich, Switzerland
Y1  - 2011
N1  - Wirtschaftsinformatik Proceedings 2011. 75.
SP  - 355
EP  - 364
ER  - 
TY  - CHAP
A1  - Becker, Jörg
A1  - Bergener, Philipp
A1  - Breuker, Dominic
A1  - Delfmann, Patrick
A1  - Eggert, Mathias
T1  - An Efficient Business Process Compliance Checking Approach
T2  - Governance and Sustainability in Information Systems. Managing the Transfer and Diffusion of IT : IFIP WG 8.6 International Working Conference, Hamburg, Germany, September 22-24, 2011. Proceedings
Y1  - 2011
U6  - https://doi.org/10.1007/978-3-642-24148-2_19
SP  - 282
EP  - 287
PB  - Springer
CY  - Berlin, Heidelberg
ER  - 
TY  - JOUR
A1  - Becker, C.
A1  - Wallang, C.
A1  - Artmann, Gerhard
A1  - Jakse, G.
T1  - Mechanotransduction-bioreactor for tissue engineering of a ureter prosthesis
JF  - International Journal of Artificial Organs, The
Y1  - 2008
SN  - 0391-3988
N1  - Abstracts from the XXXV Congress of the European Society for Artificial Organs: 'Towards Future Biomedical Technologies' - ORAL PRESENTATIONS
VL  - 31
IS  - 7
SP  - 583
EP  - 583
ER  - 
TY  - JOUR
A1  - Beckenbach, Isabel
A1  - Scheidweiler, Robert
T1  - Perfect ƒ-Matchings and ƒ-Factors in Hypergraphs - A Combinatorial Approach
JF  - Discrete Mathematics
N2  - We prove characterizations of the existence of perfect ƒ-matchings in uniform mengerian and perfect hypergraphs. Moreover, we investigate the ƒ-factor problem in balanced hypergraphs. For uniform balanced hypergraphs we prove two existence theorems with purely combinatorial arguments, whereas for non-uniform balanced hypergraphs we show that the ƒ-factor problem is NP-hard.
Y1  - 2016
U6  - https://doi.org/10.1016/j.disc.2017.05.005
SN  - 2192-7782
N1  - Als Volltext auch bei ZIB (Zuse Institute Berlin)
VL  - 240
IS  - 10
SP  - 2499
EP  - 2506
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Beck, Daniel
A1  - Buchleitner, Martin
A1  - Ferrein, Alexander
A1  - Niemüller, Tim
A1  - Steinbauer, Gerald
T1  - Mostly Harmless & AllemaniACs - mixed innovations
Y1  - 2014
SP  - 1
EP  - 8
ER  - 
TY  - JOUR
A1  - Becht, Alexander
A1  - Schollmayer, Curd
A1  - Monakhova, Yulia
A1  - Holzgrabe, Ulrike
T1  - Tracing the origin of paracetamol tablets by near-infrared, mid-infrared, and nuclear magnetic resonance spectroscopy using principal component analysis and linear discriminant analysis
JF  - Analytical and Bioanalytical Chemistry
N2  - Most drugs are no longer produced in their own countries by the pharmaceutical companies, but by contract manufacturers or at manufacturing sites in countries that can produce more cheaply. This not only makes it difficult to trace them back but also leaves room for criminal organizations to fake them unnoticed. For these reasons, it is becoming increasingly difficult to determine the exact origin of drugs. The goal of this work was to investigate how exactly this is possible by using different spectroscopic methods like nuclear magnetic resonance and near- and mid-infrared spectroscopy in combination with multivariate data analysis. As an example, 56 out of 64 different paracetamol preparations, collected from 19 countries around the world, were chosen to investigate whether it is possible to determine the pharmaceutical company, manufacturing site, or country of origin. By means of suitable pre-processing of the spectra and the different information contained in each method, principal component analysis was able to evaluate manufacturing relationships between individual companies and to differentiate between production sites or formulations. Linear discriminant analysis showed different results depending on the spectral method and purpose. For all spectroscopic methods, it was found that the classification of the preparations to their manufacturer achieves better results than the classification to their pharmaceutical company. The best results were obtained with nuclear magnetic resonance and near-infrared data, with 94.6%/99.6% and 98.7/100% of the spectra of the preparations correctly assigned to their pharmaceutical company or manufacturer.
KW  - IR
KW  - Manufacturer
KW  - Linear discriminant analysis
KW  - Principal component analysis
Y1  - 2021
U6  - https://doi.org/10.1007/s00216-021-03249-z
SN  - 1618-2650
VL  - 413
SP  - 3107
EP  - 3118
PB  - Springer Nature
ER  -