TY  - JOUR
A1  - Bragard, Michael
A1  - Soltau, N.
A1  - Thomas, S.
A1  - De Doncker, R. W.
T1  - The balance of renewable sources and user demands in grids : power electronics for modular battery energy storage systems
JF  - IEEE transactions on power electronics
N2  - The continuously growing amount of renewable sources starts compromising the stability of electrical grids. Contradictory to fossil fuel power plants, energy production of wind and photovoltaic (PV) energy is fluctuating. Although predictions have significantly improved, an outage of multi-MW offshore wind farms poses a challenging problem. One solution could be the integration of storage systems in the grid. After a short overview, this paper focuses on two exemplary battery storage systems, including the required power electronics. The grid integration, as well as the optimal usage of volatile energy reserves, is presented for a 5- kW PV system for home application, as well as for a 100- MW medium-voltage system, intended for wind farm usage. The efficiency and cost of topologies are investigated as a key parameter for large-scale integration of renewable power at medium- and low-voltage.
Y1  - 2010
U6  - http://dx.doi.org/10.1109/TPEL.2010.2085455
SN  - 0885-8993
VL  - 25
IS  - 12
SP  - 3049
EP  - 3056
PB  - IEEE
CY  - New York
ER  - 
TY  - CHAP
A1  - Bragard, Michael
A1  - Sube, Maike
A1  - Schneider, Maike
A1  - Jungemann, Christoph
T1  - Introducing a Cross-University Bachelor’s Programme with Orientation Semester - Enabling a Permeable Academic Education System
T2  - 2019 20th International Conference on Research and Education in Mechatronics (REM)
Y1  - 2019
SN  - 978-1-5386-9257-8
U6  - http://dx.doi.org/10.1109/REM.2019.8744132
SP  - 1
EP  - 6
ER  - 
TY  - JOUR
A1  - Bragard, Michael
A1  - van Hoek, H.
A1  - De Doncker, R. W.
T1  - A major design step in IETO concept realization that allows overcurrent protection and pushes limits of switching performance
JF  - IEEE transactions on power electronics
N2  - This paper presents the latest prototype of the integrated emitter turn-off thyristor concept, which potentially ranks among thyristor high-power devices like the gate turn-off thyristor and the integrated gate-commutated thyristor (IGCT). Due to modifications of the external driver stage and mechanical press-pack design optimization, this prototype allows for full device characterization. The turn-off capability was increased to 1600 A with an active silicon area of 823mm2 . This leads to a transient peak power of 672.1kW/cm² . Within this paper, measurements and concept assessment are presented and a comparison to state-of-the-art IGCT devices is provided.
Y1  - 2012
U6  - http://dx.doi.org/10.1109/TPEL.2012.2189136
SN  - 0885-8993
VL  - 27
IS  - 9
SP  - 4163
EP  - 4171
PB  - IEEE
CY  - New York
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  - CHAP
A1  - Brandes, Sinja
A1  - Gligorevic, Snjezana
A1  - Schnell, Michael
A1  - Rokitansky, Carl-Herbert
A1  - Ehammer, Max
A1  - Gräupl, Thomas
A1  - Schlereth, Armin
A1  - Rihacek, Christoph
T1  - Final assessment of the B-VHF overlay concept
T2  - IEEE Aerospace Conference : 3-10 March 2007, Big Sky, Mont.
Y1  - 2007
SN  - 1-4244-0525-4
SP  - 1
EP  - 18
ER  - 
TY  - CHAP
A1  - Brandini, Frederico P.
A1  - Baumann, Marcus
T1  - The potential role of melted 'brown ice' as sources of chelators and ammonia to the surface waters of the Weddell Sea, Antarctica
T2  - Proceedings of the NIPR Symposium on Polar Biology : 10
Y1  - 1997
SN  - 0914-563X
SP  - 1
EP  - 13
CY  - Tokyo
ER  - 
TY  - CHAP
A1  - Braun, Carsten
A1  - Boucke, Alexander
A1  - Ballmann, Josef
T1  - Numerical prediction of the wing deformation of a high speed transport aircraft type wind tunnel model by direct aeroelastic simulation
T2  - Conference proceedings : CEAS/AIAA/DGLR International Forum on Aeroelasticity and Structural Dynamics IFASD 2005 : München, June 28 - July 1, 2005. DGLR-Bericht. 2005,04
Y1  - 2005
SN  - 3-932182-43-X
PB  - DGLR
CY  - Bonn
ER  - 
TY  - CHAP
A1  - Braun, Carsten
A1  - Boucke, Alexander
A1  - Ballmann, Josef
T1  - Numerical study of the influence of dynamic pressure and deflected ailerons on the deformation of a high speed wing model
T2  - High performance computing in science and engineering '04. Transactions of the High Performance Computing Center Stuttgart (HLRS) 2004 /  Eds.: Egon Krause ...
Y1  - 2005
SN  - 3-540-22943-4
SP  - 225
EP  - 236
PB  - Springer
CY  - Berlin
ER  - 
TY  - CHAP
A1  - Braun, Sebastian
A1  - Cheng, Chi-Tsun
A1  - Dowey, Steve
A1  - Wollert, Jörg
T1  - Survey on Security Concepts to Adapt Flexible Manufacturing and Operations Management based upon Multi-Agent Systems
T2  - 2020 IEEE 29th International Symposium on Industrial Electronics (ISIE)
Y1  - 2020
U6  - http://dx.doi.org/10.1109/ISIE45063.2020.9152210
ER  - 
TY  - JOUR
A1  - Braun, Sebastian
A1  - Cheng, Chi-Tsun
A1  - Dowey, Steve
A1  - Wollert, Jörg
T1  - Performance evaluation of skill-based order-assignment in production environments with multi-agent systems
JF  - IEEE Journal of Emerging and Selected Topics in Industrial Electronics
N2  - The fourth industrial revolution introduces disruptive technologies to production environments. One of these technologies are multi-agent systems (MASs), where agents virtualize machines. However, the agent's actual performances in production environments can hardly be estimated as most research has been focusing on isolated projects and specific scenarios. We address this gap by implementing a highly connected and configurable reference model with quantifiable key performance indicators (KPIs) for production scheduling and routing in single-piece workflows. Furthermore, we propose an algorithm to optimize the search of extrema in highly connected distributed systems. The benefits, limits, and drawbacks of MASs and their performances are evaluated extensively by event-based simulations against the introduced model, which acts as a benchmark. Even though the performance of the proposed MAS is, on average, slightly lower than the reference system, the increased flexibility allows it to find new solutions and deliver improved factory-planning outcomes. Our MAS shows an emerging behavior by using flexible production techniques to correct errors and compensate for bottlenecks. This increased flexibility offers substantial improvement potential. The general model in this paper allows the transfer of the results to estimate real systems or other models.
KW  - cyber-physical production systems
KW  - event-based simulation
KW  - multi-agent systems
KW  - digital factory
KW  - industrial agents
Y1  - 2021
U6  - http://dx.doi.org/10.1109/JESTIE.2021.3108524
SN  - 2687-9735
IS  - Early Access
PB  - IEEE
CY  - New York
ER  - 
TY  - CHAP
A1  - Braun, Sebastian
A1  - Cheng, Chi-Tsun
A1  - Lai, Chow Yin
A1  - Wollert, Jörg
T1  - Microservice Architecture for Automation - Realization by the example of a model-factory’s manufacturing execution system
T2  - Proceedings of the 23rd World Multi-Conference on Systemics, Cybernetics and Informatics: WMSCI 2019
Y1  - 2019
SP  - 33
EP  - 37
ER  - 
TY  - CHAP
A1  - Brauner, Philipp
A1  - Vervier, Luisa
A1  - Brillowski, Florian
A1  - Dammers, Hannah
A1  - Steuer-Dankert, Linda
A1  - Schneider, Sebastian
A1  - Baier, Ralph
A1  - Ziefle, Martina
A1  - Gries, Thomas
A1  - Leicht-Scholten, Carmen
A1  - Mertens, Alexander
A1  - Nagel, Saskia K.
T1  - Organization Routines in Next Generation Manufacturing
T2  - Forecasting Next Generation Manufacturing
N2  - Next Generation Manufacturing promises significant improvements in performance, productivity, and value creation. In addition to the desired and projected improvements regarding the planning, production, and usage cycles of products, this digital transformation will have a huge impact on work, workers, and workplace design. Given the high uncertainty in the likelihood of occurrence and the technical, economic, and societal impacts of these changes, we conducted a technology foresight study, in the form of a real-time Delphi analysis, to derive reliable future scenarios featuring the next generation of manufacturing systems. This chapter presents the organization dimension and describes each projection in detail, offering current case study examples and discussing related research, as well as implications for policy makers and firms. Specifically, we highlight seven areas in which the digital transformation of production will change how we work, how we organize the work within a company, how we evaluate these changes, and how employment and labor rights will be affected across company boundaries. The experts are unsure whether the use of collaborative robots in factories will replace traditional robots by 2030. They believe that the use of hybrid intelligence will supplement human decision-making processes in production environments. Furthermore, they predict that artificial intelligence will lead to changes in management processes, leadership, and the elimination of hierarchies. However, to ensure that social and normative aspects are incorporated into the AI algorithms, restricting measurement of individual performance will be necessary. Additionally, AI-based decision support can significantly contribute toward new, socially accepted modes of leadership. Finally, the experts believe that there will be a reduction in the workforce by the year 2030.
Y1  - 2022
SN  - 978-3-031-07734-0
U6  - http://dx.doi.org/10.1007/978-3-031-07734-0_5
SP  - 75
EP  - 94
PB  - Springer
CY  - Cham
ER  - 
TY  - CHAP
A1  - Braunstein, Bjoern
A1  - Goldmann, Jan-Peter
A1  - Albracht, Kirsten
A1  - Sanno, Maximilian
A1  - Willwacher, Steffen
A1  - Heinrich, Kai
A1  - Herrmann, Volker
A1  - Brüggemann, Gert-Peter
T1  - Joint specific contribution of mechanical power and work during acceleration and top speed in elite sprinters
T2  - 31 International Conference on Biomechanics in Sports, Taipei, Taiwan, July 07 - July 22, 2013
Y1  - 2013
SN  - 1999-4168
ER  - 
TY  - BOOK
A1  - Breitbach, Gerd
T1  - Proceedings of the Workshop on Structural Design Criteria for HTR : Jülich, 31. January - 1. February 1989 / ed.: G. Breitbach ... - Als Ms. gedr.
Y1  - 1989
N1  - (Berichte der Kernforschungsanlage Jülich : Jül-Conf. ; 71) ; Workshop on Structural Design Criteria for HTR <1989, Jülich>
PB  - Zentralbibliothek d. Kernforschungsanlage
CY  - Jülich
ER  - 
TY  - CHAP
A1  - Breitbach, Gerd
A1  - Alexopoulos, Spiros
A1  - Hoffschmidt, Bernhard
T1  - Fluid flow in porous ceramic multichannel crossflower filter modules
Y1  - 2007
PB  - COMSOL Inc.
CY  - Burlington, Mass.
ER  - 
TY  - CHAP
A1  - Breitbach, Gerd
A1  - Alexopoulos, Spiros
A1  - May, Martin
A1  - Teixeira Boura, Cristiano José
A1  - Herrmann, Ulf
T1  - Analysis of volumetric solar radiation absorbers made of wire meshes
T2  - AIP Conference Proceedings
Y1  - 2019
U6  - http://dx.doi.org/10.1063/1.5117521
SN  - 0094243X
VL  - 2126
SP  - 030009-1
EP  - 030009-6
ER  - 
TY  - JOUR
A1  - Breitbach, Gerd
A1  - Deschka, S.
A1  - Akiba, M.
T1  - High heat flux tests on brazed divertor components in electron and ion beam test facilities / S. Deschka ;  M. Akiba ; G. Breitbach ...
JF  - International journal of refractory metals and hard materials. 11 (1992), H. 6
Y1  - 1992
SN  - 0263-4368
N1  - 2. ISSN (Druck-Ausg.): 0263-4368
SP  - 367
EP  - 375
ER  - 
TY  - JOUR
A1  - Breitbach, Gerd
A1  - Schmidt-Plutka, A.
A1  - Schubert, F.
A1  - Nickel, H.
T1  - Deformation behaviour of structures exposed at very high temperatures to cyclic thermal and mechanical loadings
JF  - Structural mechanics in reactor technology : transactions of the 12th International Conference on Structural Mechanics in Reactor Technology, Stuttgart, Germany, 15-20 August 1993 / ed. Karl F. Kussmaul. - Bd. L : Inelastic behaviour of solids and structures
Y1  - 1993
SN  - 0-444-81515-5
N1  - SMiRT <12, 1993, Stuttgart>  ; L08/3
SP  - 203
EP  - 208
PB  - Elsevier
CY  - Amsterdam [u.a.]
ER  - 
TY  - JOUR
A1  - Breitbach, Gerd
A1  - Schubert, F.
T1  - A contribution to stress prediction in coatings for gas turbine blades
JF  - Archive of applied mechanics. 73 (2004), H. 9-10
Y1  - 2004
SN  - 0939-1533
N1  - 2. ISSN (Druck-Ausg.): 1432-0681
SP  - 682
EP  - 689
ER  - 
TY  - JOUR
A1  - Breitbach, Gerd
A1  - Wolf, U.
A1  - Deschka, S.
A1  - Nickel, H.
T1  - Thermomechanical analysis of an actively cooled divertor mock up
JF  - Tagungsbericht : Jahrestagung Kerntechnik : Stadthalle Karlsruhe, 5.-7. Mai 1992, Karlsruhe = Proceedings / Kerntechnische Gesellschaft ... [Red.: Karl G. Bauer]. - 1. Aufl., als Ms. gedr..
Y1  - 1992
N1  - Jahrestagung Kerntechnik <1992, Karlsruhe>
SP  - 457
EP  - 461
PB  - INFOFORUM
CY  - Bonn
ER  - 
TY  - JOUR
A1  - Bressel, A.
A1  - Schultze, J.W.
A1  - Khan, W.
A1  - Wolfaardt, G. M.
A1  - Rohns, H.-P.
A1  - Irmscher, R.
A1  - Schöning, Michael Josef
T1  - High resolution gravimetric, optical and electrochemical investigations of microbial biofilm formation in aqueous systems
JF  - Electrochimica Acta. 48 (2003), H. 20-22
Y1  - 2003
SN  - 0013-4686
SP  - 3363
EP  - 3372
ER  - 
TY  - CHAP
A1  - Breuer, Lars
A1  - Guthmann, Eric
A1  - Schöning, Michael Josef
A1  - Thoelen, Ronald
A1  - Wagner, Torsten
T1  - Light-Stimulated Hydrogels with Incorporated Graphene Oxide as Actuator Material for Flow Control in Microfluidic Applications
T2  - Proceedings Eurosensors 2017 Conference, Paris, France, 3–6 September 2017
Y1  - 2017
U6  - http://dx.doi.org/10.3390/proceedings1040524
SP  - 1
EP  - 4
ER  - 
TY  - JOUR
A1  - Breuer, Lars
A1  - Mang, Thomas
A1  - Schöning, Michael Josef
A1  - Thoelen, Ronald
A1  - Wagner, Torsten
T1  - Investigation of the spatial resolution of a laser-based stimulation process for light-addressable hydrogels with incorporated graphene oxide by means of IR thermography
JF  - Sensors and Actuators A: Physical
Y1  - 2017
U6  - http://dx.doi.org/10.1016/j.sna.2017.11.031
SN  - 0924-4247
VL  - 268
SP  - 126
EP  - 132
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Breuer, Lars
A1  - Pilas, Johanna
A1  - Guthmann, Eric
A1  - Schöning, Michael Josef
A1  - Thoelen, Ronald
A1  - Wagner, Torsten
T1  - Towards light-addressable flow control: responsive hydrogels with incorporated graphene oxide as laser-driven actuator structures within microfluidic channels
JF  - Sensor and Actuators B: Chemical
Y1  - 2019
U6  - http://dx.doi.org/10.1016/j.snb.2019.02.086
SN  - 0925-4005
VL  - 288
SP  - 579
EP  - 585
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Breuer, Lars
A1  - Raue, Markus
A1  - Kirschbaum, M.
A1  - Mang, Thomas
A1  - Schöning, Michael Josef
A1  - Thoelen, R.
A1  - Wagner, Torsten
T1  - Light-controllable polymeric material based on temperature-sensitive hydrogels with incorporated graphene oxide
JF  - Physica status solidi (a)
N2  - Poly(N-isopropylacrylamide) (PNIPAAm) hydrogel films with incorporated graphene oxide (GO) were developed and tested as light-stimulated actuators. GO dispersions were synthesized via Hummers method and characterized toward their optical properties and photothermal energy conversion. The hydrogels were prepared by means of photopolymerization. In addition, the influence of GO within the hydrogel network on the lower critical solution temperature (LCST) was investigated by differential scanning calorimetry (DSC). The optical absorbance and the response to illumination were determined as a function of GO concentration for thin hydrogel films. A proof of principle for the stimulation with light was performed.
Y1  - 2015
U6  - http://dx.doi.org/10.1002/pssa.201431944
SN  - 1862-6319
VL  - 212
IS  - 6
SP  - 1368
EP  - 1374
PB  - Wiley
CY  - Weinheim
ER  - 
TY  - CHAP
A1  - Breuer, Lars
A1  - Raue, Markus
A1  - Mang, Thomas
A1  - Schöning, Michael Josef
A1  - Thoelen, Ronald
A1  - Wagner, Torsten
T1  - Light-stimulated hydrogel actuators with incorporated graphene oxide for microfluidic applications
T2  - 12. Dresdner Sensor-Symposium 2015
Y1  - 2015
U6  - http://dx.doi.org/10.5162/12dss2015/P5.8
SP  - 206
EP  - 209
ER  - 
TY  - JOUR
A1  - Breuer, Lars
A1  - Raue, Markus
A1  - Strobel, M.
A1  - Mang, Thomas
A1  - Schöning, Michael Josef
A1  - Thoelen, R.
A1  - Wagner, Torsten
T1  - Hydrogels with incorporated graphene oxide as light-addressable actuator materials for cell culture environments in lab-on-chip systems
JF  - Physica status solidi (a)
N2  - Abstractauthoren Graphene oxide (GO) nanoparticles were incorporated in temperature-sensitive Poly(N-isopropylacrylamide) (PNIPAAm) hydrogels. The nanoparticles increase the light absorption and convert light energy into heat efficiently. Thus, the hydrogels with GO can be stimulated spatially resolved by illumination as it was demonstrated by IR thermography. The temporal progression of the temperature maximum was detected for different concentrations of GO within the polymer network. Furthermore, the compatibility of PNIPAAm hydrogels with GO and cell cultures was investigated. For this purpose, culture medium was incubated with hydrogels containing GO and the viability and morphology of chinese hamster ovary (CHO) cells was examined after several days of culturing in presence of this medium.
Y1  - 2016
U6  - http://dx.doi.org/10.1002/pssa.201533056
SN  - 1862-6300
VL  - 213
IS  - 6
SP  - 1520
EP  - 1525
PB  - Wiley-VCH
CY  - Weinheim
ER  - 
TY  - CHAP
A1  - Britten, G.
A1  - Braun, Carsten
A1  - Hesse, M.
A1  - Ballmann, Josef
T1  - Computational aeroelasticity with reduced structural models
T2  - Flow modulation and fluid-structure interaction at airplane wings : research results of the Collaborative Research Center SFB 401 at RWTH Aachen, University of Technology, Aachen, Germany / Josef Ballmann (Ed.) Notes on numerical fluid mechanics and multidisciplinary design. Vol. 84
Y1  - 2003
SN  - 3-540-40209-8
SP  - 275
EP  - 299
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Brockhaus, Moritz K.
A1  - Behbahani, Mehdi
A1  - Muris, Farina
A1  - Jansen, Sebastian V.
A1  - Schmitz- Rode, Thomas
A1  - Steinseifer, Ulrich
A1  - Clauser, Johanna C.
T1  - In vitro thrombogenicity testing of pulsatile mechanical circulatory support systems: Design and proof-of-concept
JF  - Artificial Organs
N2  - Thrombogenic complications are a main issue in mechanical circulatory support (MCS). There is no validated in vitro method available to quantitatively assess the thrombogenic performance of pulsatile MCS devices under realistic hemodynamic conditions. The aim of this study is to propose a method to evaluate the thrombogenic potential of new designs without the use of complex in-vivo trials. This study presents a novel in vitro method for reproducible thrombogenicity testing of pulsatile MCS systems using low molecular weight heparinized porcine blood. Blood parameters are continuously measured with full blood thromboelastometry (ROTEM; EXTEM, FIBTEM and a custom-made analysis HEPNATEM). Thrombus formation is optically observed after four hours of testing. The results of three experiments are presented each with two parallel loops. The area of thrombus formation inside the MCS device was reproducible. The implantation of a filter inside the loop catches embolizing thrombi without a measurable increase of platelet activation, allowing conclusions of the place of origin of thrombi inside the device. EXTEM and FIBTEM parameters such as clotting velocity (α) and maximum clot firmness (MCF) show a total decrease by around 6% with a characteristic kink after 180 minutes. HEPNATEM α and MCF rise within the first 180 minutes indicate a continuously increasing activation level of coagulation. After 180 minutes, the consumption of clotting factors prevails, resulting in a decrease of α and MCF. With the designed mock loop and the presented protocol we are able to identify thrombogenic hot spots inside a pulsatile pump and characterize their thrombogenic potential.
Y1  - 2021
U6  - http://dx.doi.org/10.1111/aor.14046
SN  - 1525-1594
VL  - 45
IS  - 12
SP  - 1513
EP  - 1521
PB  - Wiley
CY  - Weinheim
ER  - 
TY  - CHAP
A1  - Brockmann, Carsten
A1  - Sultanow, Eldar
A1  - Czarnecki, Christian
ED  - Draude, Claude
ED  - Lange, Martin
ED  - Sick, Bernhard
T1  - Is enterprise architecture still relevant in the digital age?
T2  - GI Edition Proceedings Band 295 INFORMATIK 2019, Workshop-Beiträge
KW  - Preface
KW  - Enterprise Architecture
KW  - Digital Age
Y1  - 2019
SN  - 9783885796893
U6  - http://dx.doi.org/10.18420/inf2019_ws01
SN  - 1617-5468
N1  - 50 Jahre Gesellschaft für Informatik – Informatik für Gesellschaft. 16. September, Kassel
SP  - 21
EP  - 21
PB  - Köllen
CY  - Bonn
ER  - 
TY  - CHAP
A1  - Brockmann, Carsten
A1  - Sultanow, Eldar
A1  - Czarnecki, Christian
ED  - Czarnecki, Christian
ED  - Brockmann, Carsten
ED  - Sultanow, Eldar
ED  - Koschmider, Agnes
ED  - Selzer, Annika
ED  - Gesellschaft für Informatik e. V., 
T1  - Enterprise architectures between agility and traditional methodologies
T2  - GI Edition Proceedings Band 285 Workshops der INFORMATIK 2018
N2  - For this year’s workshop on Enterpirse Architecture in Research and Practice we have received eight submissions from which four have passed the rigorous peer-review. The acceptance quote of 50% assures that only advancements in the field are included in our workshop.
KW  - Agility
KW  - agile
KW  - Enterprise Architecture
Y1  - 2018
SN  - 9783885796794
SN  - 1617-5468
N1  - 26.-27. September 2018 Berlin
PB  - Köllen
CY  - Bonn
ER  - 
TY  - CHAP
A1  - Broenner, Simon
A1  - Höfken, Hans-Wilhelm
A1  - Schuba, Marko
T1  - Streamlining extraction and analysis of android RAM images
T2  - Proceedings of the 2nd international conference on information systems security and privacy
Y1  - 2016
SN  - 978-989-758-167-0
U6  - http://dx.doi.org/10.5220/0005652802550264
SP  - 255
EP  - 264
ER  - 
TY  - THES
A1  - Bronder, Thomas
T1  - Label-free detection of tuberculosis DNA with capacitive field-effect biosensors
Y1  - 2020
U6  - http://dx.doi.org/10.17192/z2021.0056
N1  - Dissertation, Universität, Marburg 2020
PB  - Philipps-Universität Marburg
CY  - Marburg
ER  - 
TY  - JOUR
A1  - Bronder, Thomas
A1  - Jessing, Max P.
A1  - Poghossian, Arshak
A1  - Keusgen, Michael
A1  - Schöning, Michael Josef
T1  - Detection of PCR-Amplified Tuberculosis DNA Fragments with Polyelectrolyte-Modified Field-Effect Sensors
JF  - Analytical Chemistry
N2  - Field-effect-based electrolyte-insulator-semiconductor (EIS) sensors were modified with a bilayer of positively charged weak polyelectrolyte (poly(allylamine hydrochloride) (PAH)) and probe single-stranded DNA (ssDNA) and are used for the detection of complementary single-stranded target DNA (cDNA) in different test solutions. The sensing mechanism is based on the detection of the intrinsic molecular charge of target cDNA molecules after the hybridization event between cDNA and immobilized probe ssDNA. The test solutions contain synthetic cDNA oligonucleotides (with a sequence of tuberculosis mycobacteria genome) or PCR-amplified DNA (which origins from a template DNA strand that has been extracted from Mycobacterium avium paratuberculosis-spiked human sputum samples), respectively. Sensor responses up to 41 mV have been measured for the test solutions with DNA, while only small signals of ∼5 mV were detected for solutions without DNA. The lower detection limit of the EIS sensors was ∼0.3 nM, and the sensitivity was ∼7.2 mV/decade. Fluorescence experiments using SybrGreen I fluorescence dye support the electrochemical results.
Y1  - 2018
U6  - http://dx.doi.org/10.1021/acs.analchem.8b01807
SN  - 0003-2700
VL  - 90
IS  - 12
SP  - 7747
EP  - 7753
PB  - ACS Publications
CY  - Washington, DC
ER  - 
TY  - JOUR
A1  - Bronder, Thomas
A1  - Poghossian, Arshak
A1  - Jessing, Max P.
A1  - Keusgen, Michael
A1  - Schöning, Michael Josef
T1  - Surface regeneration and reusability of label-free DNA biosensors based on weak polyelectrolyte-modified capacitive field-effect structures
JF  - Biosensors and Bioelectronics
Y1  - 2019
U6  - http://dx.doi.org/10.1016/j.bios.2018.11.019
SN  - 0956-5663
VL  - 126
SP  - 510
EP  - 517
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Bronder, Thomas
A1  - Poghossian, Arshak
A1  - Keusgen, Michael
A1  - Schöning, Michael Josef
T1  - Label-free detection of double-stranded DNA molecules with polyelectrolyte-modified capacitive field-effect sensors
T1  - Markierungsfreie Detektion doppelsträngiger DNA Moleküle mit Hilfe von Polyelektrolyt-modifizierten kapazitiven Feldeffekt-Sensoren
JF  - tm - Technisches Messen
N2  - In this study, polyelectrolyte-modified field-effect-based electrolyte-insulator-semiconductor (EIS) devices have been used for the label-free electrical detection of double-stranded deoxyribonucleic acid (dsDNA)molecules. The sensor-chip functionalization with a positively charged polyelectrolyte layer provides the possibility of direct adsorptive binding of negatively charged target DNA oligonucleotides onto theSiO2-chip surface.EIS sensors can be utilized as a tool to detect surface-charge changes; the electrostatic adsorption of oligonucleotides onto the polyelectrolyte layer leads to a measureable surface-potential change. Signals of 39mV have been recorded after the incubation with the oligonucleotide solution. Besides the electrochemical experiments, the successful adsorption of dsDNA onto the polyelectrolyte layer has been verified via fluorescence microscopy. The presented results demonstrate that the signal recording of EISchips, which are modified with a polyelectrolyte layer, canbe used as a favorable approach for a fast, cheap and simple detection method for dsDNA.
Y1  - 2017
U6  - http://dx.doi.org/10.1515/teme-2017-0015
VL  - 84
IS  - 10
SP  - 628
EP  - 634
PB  - De Gruyter
CY  - Oldenbourg
ER  - 
TY  - JOUR
A1  - Bronder, Thomas
A1  - Poghossian, Arshak
A1  - Scheja, S.
A1  - Wu, Chunsheng
A1  - Keusgen, M.
A1  - Schöning, Michael Josef
T1  - Electrostatic Detection of Unlabelled Single- and Double-stranded DNA Using Capacitive Field-effect Devices Functionalized with a Positively Charged Polyelectrolyte Layer
JF  - Procedia Engineering
N2  - Capacitive field-effect electrolyte-insulator-semiconductor sensors consisting of an Al-p-Si-SiO2 structure have been used for the electrical detection of unlabelled single- and double-stranded DNA (dsDNA) molecules by their intrinsic charge. A simple functionalization protocol based on the layer-by-layer (LbL) technique was used to prepare a weak polyelectrolyte/probe-DNA bilayer, followed by the hybridization with complementary target DNA molecules. Due to the flat orientation of the LbL-adsorbed DNA molecules, a high sensor signal has been achieved. In addition, direct label-free detection of in-solution hybridized dsDNA molecules has been studied.
Y1  - 2015
U6  - http://dx.doi.org/10.1016/j.proeng.2015.08.710
SN  - 1877-7058
N1  - Eurosensors 2015
VL  - 120
SP  - 544
EP  - 547
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Bronder, Thomas
A1  - Poghossian, Arshak
A1  - Scheja, Sabrina
A1  - Wu, Chunsheng
A1  - Keusgen, Michael
A1  - Mewes, Dieter
A1  - Schöning, Michael Josef
T1  - DNA Immobilization and Hybridization Detection by the Intrinsic Molecular Charge Using Capacitive Field-Effect Sensors Modified with a Charged Weak Polyelectrolyte Layer
JF  - Applied Materials & Interfaces
N2  - Miniaturized setup, compatibility with advanced micro- and nanotechnologies, and ability to detect biomolecules by their intrinsic molecular charge favor the semiconductor field-effect platform as one of the most attractive approaches for the development of label-free DNA chips. In this work, a capacitive field-effect EIS (electrolyte–insulator–semiconductor) sensor covered with a layer-by-layer prepared, positively charged weak polyelectrolyte layer of PAH (poly(allylamine hydrochloride)) was used for the label-free electrical detection of DNA (deoxyribonucleic acid) immobilization and hybridization. The negatively charged probe single-stranded DNA (ssDNA) molecules were electrostatically adsorbed onto the positively charged PAH layer, resulting in a preferentially flat orientation of the ssDNA molecules within the Debye length, thus yielding a reduced charge-screening effect and a higher sensor signal. Each sensor-surface modification step (PAH adsorption, probe ssDNA immobilization, hybridization with complementary target DNA (cDNA), reducing an unspecific adsorption by a blocking agent, incubation with noncomplementary DNA (ncDNA) solution) was monitored by means of capacitance–voltage and constant-capacitance measurements. In addition, the surface morphology of the PAH layer was studied by atomic force microscopy and contact-angle measurements. High hybridization signals of 34 and 43 mV were recorded in low-ionic strength solutions of 10 and 1 mM, respectively. In contrast, a small signal of 4 mV was recorded in the case of unspecific adsorption of fully mismatched ncDNA. The density of probe ssDNA and dsDNA molecules as well as the hybridization efficiency was estimated using the experimentally measured DNA immobilization and hybridization signals and a simplified double-layer capacitor model. The results of field-effect experiments were supported by fluorescence measurements, verifying the DNA-immobilization and hybridization event.
Y1  - 2015
U6  - http://dx.doi.org/10.1021/acsami.5b05146
VL  - 36
IS  - 7
SP  - 20068
EP  - 20075
PB  - American Chemical Society
CY  - Washington, DC
ER  - 
TY  - JOUR
A1  - Bronder, Thomas
A1  - Wu, Chunsheng
A1  - Poghossian, Arshak
A1  - Werner, Frederik
A1  - Keusgen, M.
A1  - Schöning, Michael Josef
T1  - Label-free detection of DNA hybridization with light-addressable potentiometric sensors: comparison of various DNA-immobilization strategies
JF  - Procedia Engineering
N2  - Light-addressable potentiometric sensors (LAPS) consisting of a p-Si-SiO2 and p-Si-SiO2-Au structure, respectively, have been tested for a label-free electrical detection of DNA (deoxyribonucleic acid) hybridization. Three different strategies for immobilizing single-stranded probe DNA (ssDNA) molecules on a LAPS surface have been studied and compared: (a) immobilization of thiol-modified ssDNA on the patterned Au surface via gold-thiol bond, (b) covalent immobilization of amino-modified ssDNA onto the SiO2 surface functionalized with 3-aminopropyltriethoxysilane and (c) layer-by-layer adsorption of negatively charged ssDNA on a positively charged weak polyelectrolyte layer of poly(allylamine hydrochloride).
KW  - LAPS
KW  - lable-free detection
KW  - DNA hybridization
KW  - field-effect sensor
Y1  - 2014
U6  - http://dx.doi.org/10.1016/j.proeng.2014.11.647
SN  - 1877-7058
N1  - EUROSENSORS 2014 ; European Conference on Solid-State Transducers <28, 2014>
VL  - 87
SP  - 755
EP  - 758
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Bruksle, Ieva
A1  - Chwallek, Constanze
A1  - Krastina, Anzelika
T1  - Strengthening sustainability in entrepreneurship education - implications for shifting entrepreneurial thinking towards sustainability at universities
JF  - ACTA PROSPERITATIS
N2  - By developing innovative solutions to social and environmental problems, sustainable ventures carry greatpotential. Entrepreneurship which focuses especially on new venture creation can be developed through education anduniversities, in particular, are called upon to provide an impetus for social change. But social innovations are associatedwith certain hurdles, which are related to the multi-dimensionality, i.e. the tension between creating social,environmental and economic value and dealing with a multiplicity of stakeholders. The already complex field ofentrepreneurship education has to face these challenges. This paper, therefore, aims to identify starting points for theintegration of sustainability into entrepreneurship education. To pursue this goal experiences from three differentproject initiatives between the partner universities: Lapland University of Applied Sciences, FH Aachen University ofApplied Sciences and Turiba University are reflected and findings are systematically condensed into recommendationsfor education on sustainable entrepreneurship.
KW  - climate change
KW  - entrepreneurship education
KW  - Finland
KW  - Germany
KW  - Latvia
Y1  - 2023
U6  - http://dx.doi.org/10.37804/1691-6077-2023-14-37-48
SN  - 1691-6077
VL  - 14
IS  - 1
SP  - 37
EP  - 48
PB  - Sciendo
ER  - 
TY  - JOUR
A1  - Brück, Stefan
A1  - Sorger, Ulrich
A1  - Gligorevic, Snjezana
A1  - Stolte, Norbert
T1  - Interleaving for outer convolutional codes in DS-CDMA systems
JF  - IEEE transactions on communications
Y1  - 2000
SN  - 0090-6778
VL  - Vol. 48
IS  - Iss. 7
SP  - 1100
EP  - 1107
ER  - 
TY  - BOOK
A1  - Brüssermann, Klaus
T1  - Proceedings of the Workshop on Evaluation and Mitigation of Accidental Releases of Radioactivity, Identification of Uncertainties : Bad Münstereifel, Fed. Republic of Germany, April 5th - 10th, 1981
Y1  - 1982
SN  - 3-88668-014-2
N1  - Dokumentation des Workshops Abschätzung und Folgenminderung von Unfallbedingten Freisetzungen von Radioaktivität, Identifizierung und Unsicherheiten
PB  - Ges. für Umweltüberwachung
CY  - Aldenhoven
ER  - 
TY  - JOUR
A1  - Brüssermann, Klaus
T1  - H3 and C14 air monitoring according to KTA 1503.1
JF  - 2. Karlsruhe international conference on analytical chemistry in nuclear technology, Karlsruhe (Germany), 5-9 Jun 1989
Y1  - 1989
ER  - 
TY  - CHAP
A1  - Brüssermann, Klaus
T1  - Platform of Excellence in "Energy and Environment"
N2  - The Ministry of Science and Research in North Rhine-Westphalia created eight platforms of excellence, one in the research area „Energy and Environment“ in 2002 at ACUAS. This platform concentrates the research and development of 13 professors in Jülich and Aachen and of two scientific institutes with different topics: – NOWUM-Energy with emphasis on efficient and economic energy conversion – The Solar Institute Jülich – SIJ – being the largest research institute in the field of renewables at a University of Applied Sciences in Germany With this platform each possible energy conversion – nuclear, fossil, renewable- can be dealt with to help solving the two most important problems of mankind, energy and potable water. At the CSE are presented the historical development, some research results and the combined master studies in „Energy Systems“ and „Nuclear Applications“
KW  - Energietechnik
KW  - Kernenergie
KW  - Umwelt
KW  - Energy
KW  - environment
KW  - Energy Systems
KW  - Nuclear Applications
Y1  - 2005
ER  - 
TY  - JOUR
A1  - Brüssermann, Klaus
A1  - Ashton, P.
A1  - Leicht, R.
A1  - Martens, B.-R.
T1  - Concept of the Konrad repository documentation system for radioactive wastes (DORA) / Ashton, P.; Leicht, R.; Martens, B.-R.; Giller, H. Brüssermann, K.
JF  - Kerntechnik 94 : Jahrestagung, 17.-19. Mai 1994, Stuttgart: Tagungsbericht = Nuclear technology, annual meeting 94 / Veranst.: Kerntechnische Gesellschaft; Deutsches Atomforum
Y1  - 1994
SP  - 294
EP  - 297
PB  - INFORUM Verl.- u. Verwaltungs-Ges.
CY  - Bonn
ER  - 
TY  - CHAP
A1  - Brüssermann, Klaus
A1  - Deuster, M.
T1  - Temperature measurement to optimise the burning process
N2  - One of the most important parameters in a burning chamber - in power stations, in waste to energy plants - is the temperature. This temperature is in the range of 700-1500 °C - one of the most advanced measuring methods being the acoustic pyrometry with the possibility of producing temperature mapping in one level of the burning chamber - comparable to computer tomography. The results of these measurements discussed in the presentation can be used - to fulfil the legal requirements in the FRG or in the EU - to equalise the temperature in one level of the burning chamber to optimise the steam production (better efficiency of the plant) and to minimise the production of temperature controlled flue gas components (NO, CO a. o.) - to control the SNCR-process if used.
KW  - Pyrometrie
KW  - Temperaturmessung
KW  - temperature measurement
KW  - acoustic pyrometry
KW  - steam production
KW  - flue gas components
Y1  - 2005
ER  - 
TY  - CHAP
A1  - Buck, R.
A1  - Wurmhöringer, K.
A1  - Lehle, R.
A1  - Pfahl, A.
A1  - Göttsche, Joachim
A1  - Meyr, T.
T1  - Development of a 30m2 heliostat with hydraulic drive
T2  - SolarPACES 2010 : the CSP Conference: electricity, fuels and clean water from concentrated solar energy ; 21 to 24 September 2010, Perpignan, France
Y1  - 2010
SP  - 74
EP  - 75
PB  - Soc. OSC
CY  - Saint Maur
ER  - 
TY  - JOUR
A1  - Bucur, Alexandru
A1  - Lazarescu, Lucian
A1  - Pop, Grigore Marian
A1  - Achimas, Gheorghe
A1  - Gebhardt, Andreas
T1  - Tribological performance of biodegradable lubricants under different surface roughness of tools
JF  - Academic Journal of Manufacturing Engineering
Y1  - 2019
SN  - 1583-7904
VL  - 17
IS  - 1
SP  - 172
EP  - 178
ER  - 
TY  - CHAP
A1  - Buda, Aurel
A1  - Jozenfini, B.
A1  - Wollert, Jörg
T1  - Mobile ad-hoc Network for home automation based on ZigBee application framework
T2  - 1st European ZigBee Developer's Conference : June 18 - 20, 2007, Munich, Germany
Y1  - 2007
SP  - 1
EP  - 5
PB  - Design & Elektronik
CY  - Poing
ER  - 
TY  - CHAP
A1  - Buda, Aurel
A1  - Schürmann, Volker
A1  - Wollert, Jörg
T1  - Wireless technologies in factory automation
T2  - Factory automation / ed. by Javier Silvestre-Blanes
Y1  - 2010
SN  - 978-953-7619-42-8
SP  - 29
EP  - 50
PB  - Intech
CY  - London
ER  -