TY  - CHAP
A1  - Katz, Eugenii
A1  - Willner, Itamar
T1  - Magneto-controlled quantized electron transfer to surface-confined redox units and metal nanoparticles
N2  - Hydrophobic magnetic nanoparticles (NPs) consisting of undecanoate-capped magnetite (Fe3O4, average diameter ca. 5 nm) are used to control quantized electron transfer to surface-confined redox units and metal NPs. A two-phase system consisting of an aqueous electrolyte solution and a toluene phase that includes the suspended undecanoatecapped magnetic NPs is used to control the interfacial properties of the electrode surface. The attracted magnetic NPs form a hydrophobic layer on the electrode surface resulting in the change of the mechanisms of the surface-confined electrochemical processes. A quinone-monolayer modified Au electrode demonstrates an aqueous-type of the electrochemical process (2e-+2H+ redox mechanism) for the quinone units in the absence of the hydrophobic magnetic NPs, while the attraction of the magnetic NPs to the surface results in the stepwise single-electron transfer mechanism characteristic of a dry nonaqueous medium. Also, the attraction of the hydrophobic magnetic NPs to the Au electrode surface modified with Au NPs (ca. 1.4 nm) yields a microenvironment with a low dielectric constant that results in the single-electron quantum charging of the Au NPs.
KW  - Biosensor
KW  - Nanoparticles
KW  - magnetic particles
KW  - quantum charging
KW  - modified electrode
Y1  - 2006
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1528
ER  - 
TY  - CHAP
A1  - Simsek, Beril
A1  - Krause, Hans-Joachim
A1  - Engelmann, Ulrich M.
ED  - Digel, Ilya
ED  - Staat, Manfred
ED  - Trzewik, Jürgen
ED  - Sielemann, Stefanie
ED  - Erni, Daniel
ED  - Zylka, Waldemar
T1  - Magnetic biosensing with magnetic nanoparticles: Simulative approach to predict signal intensity in frequency mixing magnetic detection
T2  - 4th YRA MedTech Symposium 2024 : February 1 / 2024 / FH Aachen
N2  - Magnetic nanoparticles (MNP) are investigated with great interest for biomedical applications in diagnostics (e.g. imaging: magnetic particle imaging (MPI)), therapeutics (e.g. hyperthermia: magnetic fluid hyperthermia (MFH)) and multi-purpose biosensing (e.g. magnetic immunoassays (MIA)). What all of these applications have in common is that they are based on the unique magnetic relaxation mechanisms of MNP in an alternating magnetic field (AMF). While MFH and MPI are currently the most prominent examples of biomedical applications, here we present results on the relatively new biosensing application of frequency mixing magnetic detection (FMMD) from a simulation perspective. In general, we ask how the key parameters of MNP (core size and magnetic anisotropy) affect the FMMD signal: by varying the core size, we investigate the effect of the magnetic volume per MNP; and by changing the effective magnetic anisotropy, we study the MNPs’ flexibility to leave its preferred magnetization direction. From this, we predict the most effective combination of MNP core size and magnetic anisotropy for maximum signal generation.
Y1  - 2024
SN  - 978-3-940402-65-3
U6  - http://dx.doi.org/10.17185/duepublico/81475
SP  - 27
EP  - 28
PB  - Universität Duisburg-Essen
CY  - Duisburg
ER  - 
TY  - CHAP
A1  - Bohrn, Ulrich
A1  - Stütz, Evamaria
A1  - Fleischer, Maximilian
A1  - Schöning, Michael Josef
A1  - Wagner, Patrick
T1  - Living cell-based gas sensor system for the detection of acetone in air
Y1  - 2012
SN  - 978-3-9813484-2-2
U6  - http://dx.doi.org/10.5162/IMCS2012/3.2.3
SP  - 269
EP  - 272
ER  - 
TY  - CHAP
A1  - Staat, Manfred
A1  - Heitzer, M.
A1  - Hicken, E. F.
T1  - LISA, ein europäisches Projekt zur direkten Berechnung der Tragfähigkeit duktiler Strukturen
N2  - Traglast- und Einspielanalysen sind vereinfachte doch exakte Verfahren der Plastizität, die neben ausreichender Verformbarkeit keine einschränkenden Voraussetzungen beinhalten. Die Vereinfachungen betreffen die Beschaffung der Daten und Modelle für Details der Lastgeschichte und des Stoffverhaltens. Anders als die klassische Behandlung nichtlinearer Probleme der Strukturmechanik führt die Methode auf Optimierungsprobleme. Diese sind bei realistischen FEM-Modellen sehr groß. Das hat die industrielle Anwendung der Traglast- und Einspielanalysen stark verzögert. Diese Situation wird durch das Brite-EuRam Projekt LISA grundlegend geändert. Die Autoren möchten der Europäischen Kommission an dieser Stelle für die Förderung ausdrücklich danken. In LISA entsteht auf der Basis des industriellen FEM-Programms PERMAS ein Verfahren zur direkten Berechnung der Tragfähigkeit duktiler Strukturen. Damit kann der Betriebsbereich von Komponenten und Bauwerken auf den plastischen Bereich erweitert werden, ohne den Aufwand gegenüber elastischen Analysen wesentlich zu erhöhen. Die beachtlichen Rechenzeitgewinne erlauben Parameterstudien und die Berechnung von Interaktionsdiagrammen, die einen schnellen Überblick über mögliche Betriebsbereiche vermitteln. Es zeigt sich, daß abhängig von der Komponente und ihren Belastungen teilweise entscheidende Sicherheitsgewinne zur Erweiterung der Betriebsbereiche erzielt werden können. Das Vorgehen erfordert vom Anwender oft ein gewisses Umdenken. Es werden keine Spannungen berechnet, um damit Sicherheit und Lebensdauer zu interpretieren. Statt dessen berechnet man direkt die gesuchte Sicherheit. Der Post-Prozessor wird nur noch zur Modell- und Rechenkontrolle benötigt. Das Vorgehen ist änhlich der Stabilitätsanalyse (Knicken, Beulen). Durch namhafte industrielle Projektpartner werden Validierung und die Anwendbarkeit auf eine breite Palette technischer Probleme garantiert. Die ebenfalls in LISA geplante Zuverlässigkeitsanalyse ist erst auf der Basis direkter Verfahren effektiv möglich. Ohne Traglast- und Einspielanalyse ist plastische Strukturoptimierung auch heute kaum durchführbar.
KW  - Finite-Elemente-Methode
KW  - Traglastanalyse
KW  - Einspielanalyse
KW  - limit analysis
KW  - shakedown analysis
Y1  - 1998
ER  - 
TY  - CHAP
A1  - Staat, Manfred
A1  - Heitzer, Michael
A1  - Hicken, E. F.
T1  - LISA - ein europäisches Projekt zur FEM-basierten Traglast- und Einspielanalyse
T1  - LISA - a European project for FEM-based limit and shakedown analysis
N2  - Traglast- und Einspielanalysen sind vereinfachte doch exakte Verfahren der Plastizität, die neben ausreichender Verformbarkeit keine einschränkenden Voraussetzungen beinhalten. Die Vereinfachungen betreffen die Beschaffung der Daten und Modelle für Details der Lastgeschichte und des Stoffverhaltens. Anders als die klassische Behandlung nichtlinearer Probleme der Strukturmechanik führt die Methode auf Optimierungsprobleme. Diese sind bei realistischen FEM-Modellen sehr groß. Das hat die industrielle Anwendung der Traglast- und Einspielanalysen stark verzögert. Diese Situation wird durch das Brite-EuRam Projekt LISA grundlegend geändert. In LISA entsteht auf der Basis des industriellen FEM-Programms PERMAS ein Verfahren zur direkten Berechnung der Tragfähigkeit duktiler Strukturen. Damit kann der Betriebsbereich von Komponenten und Bauwerken auf den plastischen Bereich erweitert werden, ohne den Aufwand gegenüber elastischen Analysen wesentlich zu erhöhen. Die beachtlichen Rechenzeitgewinne erlauben Parameterstudien und die Berechnung von Interaktionsdiagrammen, die einen schnellen Überblick über mögliche Betriebsbereiche vermitteln. Es zeigt sich, daß abhängig von der Komponente und ihren Belastungen teilweise entscheidende Sicherheitsgewinne zur Erweiterung der Betriebsbereiche erzielt werden können. Das Vorgehen erfordert vom Anwender oft ein gewisses Umdenken. Es werden keine Spannungen berechnet, um damit Sicherheit und Lebensdauer zu interpretieren. Statt dessen berechnet man direkt die gesuchte Sicherheit. Der Post-Prozessor wird nur noch zur Modell- und Rechenkontrolle benötigt. Das Vorgehen ist ähnlich der Stabilitätsanalyse (Knicken, Beulen). Durch namhafte industrielle Projektpartner werden Validierung und die Anwendbarkeit auf eine breite Palette technischer Probleme garantiert. Die ebenfalls in LISA entwickelten Zuverlässigkeitsanalysen sind nichlinear erst auf der Basis direkter Verfahren effektiv möglich. Ohne Traglast- und Einspielanalyse ist plastische Strukturoptimierung auch heute kaum durchführbar. Auf die vorgesehenen Erweiterungen der Werkstoffmodellierung für nichtlineare Verfestigung und für Schädigung konnte hier nicht eingegangen werden. Es herrscht ein deutlicher Mangel an Experimenten zum Nachweis der Grenzen zwischen elastischem Einspielen und dem Versagen durch LCF oder durch Ratchetting.
KW  - Einspielen <Werkstoff>
KW  - Traglast
KW  - Finite-Elemente-Methode
KW  - LISA
KW  - limit analysis
KW  - shakedown analysis
Y1  - 1999
ER  - 
TY  - CHAP
A1  - Staat, Manfred
A1  - Tran, Thanh Ngoc
A1  - Pham, Phu Tinh
T1  - Limit and shakedown reliability analysis by nonlinear programming
N2  - 7th International Conference on Reliability of Materials and Structures (RELMAS 2008). June 17 - 20, 2008 ; Saint Petersburg, Russia. pp 354-358. Reprint with corrections in red Introduction Analysis of advanced structures working under extreme heavy loading such as nuclear power plants and piping system should take into account the randomness of loading, geometrical and material parameters. The existing reliability are restricted mostly to the elastic working regime, e.g. allowable local stresses. Development of the limit and shakedown reliability-based analysis and design methods, exploiting potential of the shakedown working regime, is highly needed. In this paper the application of a new algorithm of probabilistic limit and shakedown analysis for shell structures is presented, in which the loading and strength of the material as well as the thickness of the shell are considered as random variables. The reliability analysis problems may be efficiently solved by using a system combining the available FE codes, a deterministic limit and shakedown analysis, and the First and Second Order Reliability Methods (FORM/SORM). Non-linear sensitivity analyses are obtained directly from the solution of the deterministic problem without extra computational costs.
KW  - Finite-Elemente-Methode
KW  - Limit analysis
KW  - Shakedown analysis
Y1  - 2008
ER  - 
TY  - CHAP
A1  - Staat, Manfred
T1  - Limit and shakedown analysis under uncertainty
T2  - Proceedings International Conference on Advances in Computational Mechanics (ACOME)
Y1  - 2012
N1  - International Conference on Advances in Computational Mechanics (ACOME), August 14-16, 2012, Ho Chi Minh City, Vietnam
SP  - 837
EP  - 861
ER  - 
TY  - CHAP
A1  - Tran, Ngoc Trinh
A1  - Trinh, Tu Luc
A1  - Dao, Ngoc Tien
A1  - Giap, Van Tan
A1  - Truong, Manh Khuyen
A1  - Dinh, Thuy Ha
A1  - Staat, Manfred
T1  - Limit and shakedown analysis of structures under random strength
T2  - Proceedings of (NACOME2022) The 11th National Conference on Mechanics, Vol. 1. Solid Mechanics, Rock Mechanics, Artificial Intelligence, Teaching and Training, Hanoi, December 2-3, 2022
N2  - Direct methods comprising limit and shakedown analysis is a branch of computational mechanics. It plays a significant role in mechanical and civil engineering design. The concept of direct method aims to determinate the ultimate load bearing capacity of structures beyond the elastic range. For practical problems, the direct methods lead to nonlinear convex optimization problems with a large number of variables and onstraints. If strength and loading are random quantities, the problem of shakedown analysis is considered as stochastic programming. This paper presents a method so called chance constrained programming, an effective method of stochastic programming, to solve shakedown analysis problem under random condition of strength. In this our investigation, the loading is deterministic, the strength is distributed as normal or lognormal variables.
KW  - Reliability of structures
KW  - Stochastic programming
KW  - Chance constrained programming
KW  - Shakedown analysis
KW  - Limit analysis
Y1  - 2022
SN  - 978-604-357-084-7
SP  - 510
EP  - 518
PB  - Nha xuat ban Khoa hoc tu nhien va Cong nghe (Verlag Naturwissenschaft und Technik)
CY  - Hanoi
ER  - 
TY  - CHAP
A1  - Staat, Manfred
A1  - Heitzer, Michael
T1  - Limit and shakedown analysis for plastic design
N2  - Limit and shakedown theorems are exact theories of classical plasticity for the direct computation of safety factors or of the load carrying capacity under constant and varying loads. Simple versions of limit and shakedown analysis are the basis of all design codes for pressure vessels and pipings. Using Finite Element Methods more realistic modeling can be used for a more rational design. The methods can be extended to yield optimum plastic design. In this paper we present a first implementation in FE of limit and shakedown analyses for perfectly plastic material. Limit and shakedown analyses are done of a pipe–junction and a interaction diagram is calculated. The results are in good correspondence with the analytic solution we give in the appendix.
KW  - Einspielen <Werkstoff>
KW  - Traglast
KW  - Finite-Elemente-Methode
KW  - Traglastanalyse
KW  - Einspielanalyse
KW  - FEM
KW  - limit analysis
KW  - shakedown analysis
Y1  - 1997
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  - 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  - CHAP
A1  - Wagner, Torsten
A1  - Yoshinobu, T.
A1  - Schöning, Michael Josef
T1  - Light-addressable potentiometric sensor as semiconductor-based sensor platform for (bio-) chemical sensing
T2  - Armenian Journal of Physics
Y1  - 2008
SN  - 1829-1171
SP  - 99
EP  - 103
ER  - 
TY  - CHAP
A1  - Wagner, Torsten
A1  - Yoshinobu, T.
A1  - Otto, R.
A1  - Rao, C.
A1  - Molina, R.
A1  - Schöning, Michael Josef
T1  - Licht-adressierbare potentiometrische Sensorsysteme – Konzepte und Anwendungen
T2  - Sensoren und Mess-Systeme 2006 : Vorträge der 13. ITG/GMA-Fachtagung vom 13. bis 14.3.2006 in Freiburg/Breisgau
Y1  - 2006
SN  - 3-8007-2939-3
SP  - 165
EP  - 168
PB  - VDE Verl.
CY  - Berlin
ER  - 
TY  - CHAP
A1  - Müller-Veggian, Mattea
A1  - Dehnhardt, W.
A1  - Mills, J. S.
T1  - Levels in the closed neutron shell nucleus ¹⁴² Nd
T2  - International Symposium on Highly Excited States in Nuclei held at Jülich from 23-26 September 1975 : proceedings; Vol. 1 Contributed papers
Y1  - 1975
N1  - International Symposium on Highly Excited States in Nuclei <1975, Jülich> ;  European Physical Society ; Institut für Kernphysik <Jülich>
SP  - 51
PB  - Verlag des Forschungszentrums Jülich
CY  - Jülich
ER  - 
TY  - CHAP
A1  - Poghossian, Arshak
A1  - Bronder, Thomas
A1  - Wu, Chunsheng
A1  - Schöning, Michael Josef
T1  - Label-free sensing of biomolecules by their intrinsic molecular charge using field-effect devices
T2  - Semiconductor Micro- and Nanoelectonics : Proceedings of the tenth international conference, Yerevan, Armenia, September 11-13
Y1  - 2015
SN  - 978-5-8084-1991-9
SP  - 61
EP  - 63
ER  - 
TY  - CHAP
A1  - Poghossian, Arshak
A1  - Bronder, Thomas
A1  - Scheja, S.
A1  - Wu, Chunsheng
A1  - Metzger-Boddien, C.
A1  - Keusgen, M.
A1  - Schöning, Michael Josef
T1  - Label-free Electrostatic Detection of DNA Amplification by PCR Using Capacitive Field-effect Devices
T2  - Procedia Engineering
N2  - A capacitive field-effect EIS (electrolyte-insulator-semiconductor) sensor modified with a positively charged weak polyelectrolyte of poly(allylamine hydrochloride) (PAH)/single-stranded probe DNA (ssDNA) bilayer has been used for a label-free electrostatic detection of pathogen-specific DNA amplification via polymerase chain reaction (PCR). The sensor is able to distinguish between positive and negative PCR solutions, to detect the existence of target DNA amplicons in PCR samples and thus, can be used as tool for a quick verification of DNA amplification and the successful PCR process.
Y1  - 2016
U6  - http://dx.doi.org/10.1016/j.proeng.2016.11.512
SN  - 1877-7058
N1  - Proceedings of the 30th anniversary Eurosensors Conference – Eurosensors 2016, 4-7. Sepember 2016, Budapest, Hungary
VL  - Vol. 168
SP  - 514
EP  - 517
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - CHAP
A1  - Staat, Manfred
A1  - Szelinski, E.
A1  - Heitzer, Michael
T1  - Kollapsanalyse von längsfehlerbehafteten Rohren und Behältern
T1  - Collapse analysis of longitudinally flawed pipes and vessels
N2  - Es werden verbesserte Kollapsanalysen von dickwandigen, mit axialen Oberflächenfehlern behafteten Rohren und Behältern vorgeschlagen.
KW  - Druckbehälter
KW  - Stahl
KW  - Druckbelastung
KW  - Druckbeanspruchung
KW  - Rohr
KW  - Rohrbruch
KW  - Fehlerstellen
KW  - pipes
KW  - vessels
KW  - load limit
KW  - burst tests
KW  - burst pressure
KW  - flaw
Y1  - 2001
ER  - 
TY  - CHAP
A1  - Abel, Thomas
A1  - Bonin, Dominik
A1  - Albracht, Kirsten
A1  - Zeller, Sebastian
A1  - Brüggemann, Gert-Peter
A1  - Burkett, Brendan
A1  - Strüder, Heiko K.
T1  - Kinematic profile of the elite handcyclist
T2  - 28th  International Conference on Biomechanics in Sports, Marquette, Michigan, USA, July 19 – 23, 2010
Y1  - 2017
SN  - 1999-4168
SP  - 140
EP  - 141
ER  - 
TY  - CHAP
A1  - Oberländer, Jan
A1  - Reisert, Steffen
A1  - Kirchner, Patrick
A1  - Wagner, Patrick
A1  - Schöning, Michael Josef
T1  - Kalorimetrische Gassensoren zur H2O2-Detektion in aseptischen Sterilisationsprozessen
T2  - 11. Dresdner Sensor-Symposium : 9.-11.12.2013
Y1  - 2013
SN  - 978-3-9813484-5-3
SP  - 234
EP  - 238
ER  - 
TY  - CHAP
A1  - Goldmann, Jan-Peter
A1  - Braunstein, Bjoern
A1  - Heinrich, Kai
A1  - Sanno, Maximilian
A1  - Stäudle, Benjamin
A1  - Ritzdorf, Wolfgang
A1  - Brüggemann, Gert-Peter
A1  - Albracht, Kirsten
T1  - Joint work of the take-off leg during elite high jump
T2  - Proceedings of the 33th International Conference on Biomechanics in Sports (ISBS)
Y1  - 2015
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  - CHAP
A1  - Ketelhut, Maike
A1  - Göll, Fabian
A1  - Braunstein, Bjoern
A1  - Albracht, Kirsten
A1  - Abel, Dirk
T1  - Iterative learning control of an industrial robot for neuromuscular training
T2  - 2019 IEEE Conference on Control Technology and Applications
N2  - Effective training requires high muscle forces potentially leading to training-induced injuries. Thus, continuous monitoring and controlling of the loadings applied to the musculoskeletal system along the motion trajectory is required. In this paper, a norm-optimal iterative learning control algorithm for the robot-assisted training is developed. The algorithm aims at minimizing the external knee joint moment, which is commonly used to quantify the loading of the medial compartment. To estimate the external knee joint moment, a musculoskeletal lower extremity model is implemented in OpenSim and coupled with a model of an industrial robot and a force plate mounted at its end-effector. The algorithm is tested in simulation for patients with varus, normal and valgus alignment of the knee. The results show that the algorithm is able to minimize the external knee joint moment in all three cases and converges after less than seven iterations.
KW  - Knee
KW  - Training
KW  - Load modeling
KW  - Force
KW  - Iterative learning control
Y1  - 2019
SN  - 978-1-7281-2767-5 (ePub)
SN  - 978-1-7281-2766-8 (USB)
SN  - 978-1-7281-2768-2 (PoD)
U6  - http://dx.doi.org/10.1109/CCTA.2019.8920659
N1  - 2019 IEEE Conference on Control Technology and Applications (CCTA) Hong Kong, China, August 19-21, 2019
PB  - IEEE
CY  - New York
ER  - 
TY  - CHAP
A1  - Kolditz, Melanie
A1  - Albin, Thivaharan
A1  - Albracht, Kirsten
A1  - Brüggemann, Gert-Peter
A1  - Abel, Dirk
T1  - Isokinematic leg extension training with an industrial robot
T2  - 6th IEEE RAS/EMBS International Conference on Biomedical Robotics and Biomechatronics (BioRob) June 26-29, 2016. UTown, Singapore
Y1  - 2016
U6  - http://dx.doi.org/10.1109/BIOROB.2016.7523750
SP  - 950
EP  - 955
ER  - 
TY  - CHAP
A1  - Beging, Stefan
A1  - Poghossian, Arshak
A1  - Mlynek, D.
A1  - Hataihimakul, S.
A1  - Pedraza, A.
A1  - Dhawan, S.
A1  - Laube, N.
A1  - Kleinen, L.
A1  - Baldsiefen, G.
A1  - Busch, H.
A1  - Schöning, Michael Josef
T1  - Ion-selective sensors for the determination of the risk of urinary stone formation
T2  - Micro- and Nanosystems in biochemical diagnosis : Principles and applications
Y1  - 2010
SP  - 74
EP  - 80
CY  - Warsaw
ER  - 
TY  - CHAP
A1  - Kraft, Bodo
A1  - Wilhelms, N.
T1  - Interactive distributed knowledge support for conceptual building design
N2  - In: Net-distributed Co-operation : Xth International Conference on Computing in Civil and Building Engineering, Weimar, June 02 - 04, 2004 ; proceedings / [ed. by Karl Beuke ...] . - Weimar: Bauhaus-Univ. Weimar 2004. - 1. Aufl. . Seite 1-14 ISBN 3-86068-213-X International Conference on Computing in Civil and Building Engineering <10, 2004, Weimar> Summary In our project, we develop new tools for the conceptual design phase. During conceptual design, the coarse functionality and organization of a building is more important than a detailed worked out construction. We identify two roles, first the knowledge engineer who is responsible for knowledge definition and maintenance; second the architect who elaborates the conceptual de-sign. The tool for the knowledge engineer is based on graph technology, it is specified using PROGRES and the UPGRADE framework. The tools for the architect are integrated to the in-dustrial CAD tool ArchiCAD. Consistency between knowledge and conceptual design is en-sured by the constraint checker, another extension to ArchiCAD.
KW  - CAD
KW  - CAD
KW  - Bauingenieurwesen
KW  - CAD
KW  - civil engineering
Y1  - 2004
SN  - 3-86068-213-X
ER  - 
TY  - CHAP
A1  - Digel, Ilya
A1  - Leimena, W.
A1  - Dachwald, Bernd
A1  - Linder, Peter
A1  - Porst, Dariusz
A1  - Kayser, Peter
A1  - Funke, O.
A1  - Temiz Artmann, Aysegül
A1  - Artmann, Gerhard
T1  - In-situ biological decontamination of an ice melting probe : [abstract]
N2  - The objective of our study was to investigate the efficacy of different in-situ decontamination protocols in the conditions of thermo-mechanical ice-melting.
KW  - Sonde
KW  - Dekontamination
KW  - Wasserstoffperoxid
KW  - Natriumhypochlorit
Y1  - 2010
ER  - 
TY  - CHAP
A1  - Richter, Charlotte
A1  - Braunstein, Bjoern
A1  - Stäudle, Benjamin
A1  - Attias, Julia
A1  - Suess, Alexander
A1  - Weber, T.
A1  - Rittweger, Joern
A1  - Green, David A.
A1  - Albracht, Kirsten
T1  - In vivo fascicle length of the gastrocnemius muscle during walking in simulated martian gravity using two different body weight support devices
T2  - 23rd Annual Congress of the European College of Sport Science, Dublin, Irland
Y1  - 2018
ER  - 
TY  - CHAP
A1  - Weber, Hans-Joachim
A1  - Porschen, W.
A1  - Dietzel, F.
A1  - [u.a.], 
ED  - Streffer, Christian
T1  - In vivo analysis of the influence of combined hyperthermia and gamma irradiation on euoxic and hypoxic tumor cells
T2  - Cancer therapy by hyperthermia and radiation : [proceedings of the 2. International Symposium on Cancer Therapy by Hyperthermia and Radiation, Essen, 2.-4.6.1977]
Y1  - 1978
SN  - 0-8067-1701-7
SN  - 3-541-71701-7
SP  - 276
EP  - 277
PB  - Urban and Schwarzenberg
CY  - Baltimore ; Munich [u.a.]
ER  - 
TY  - CHAP
A1  - Oberländer, Jan
A1  - Arreola, Julio
A1  - Hansen, Christina
A1  - Greeff, Anton
A1  - Mayer, Marlena
A1  - Keusgen, Michael
A1  - Schöning, Michael Josef
T1  - Impedimetric Biosensor to Enable Fast Evaluation of Gaseous Sterilization Processes
T2  - MDPI Proceedings
Y1  - 2017
U6  - http://dx.doi.org/10.3390/proceedings1040435
N1  - Eurosensors 2017 Conference, Paris, France, 3–6 September 2017
VL  - 1
IS  - 4
ER  - 
TY  - CHAP
A1  - Kahmann, Stephanie
A1  - Hackl, Michael
A1  - Wegmann, Kilian
A1  - Müller, Lars-Peter
A1  - Staat, Manfred
ED  - Erni, Daniel
T1  - Impact of a proximal radial shortening osteotomy on the distribution of forces and the stability of the elbow
T2  - 1st YRA MedTech Symposium 2016 : April 8th / 2016 / University of Duisburg-Essen
N2  - The human arm consists of the humerus (upper arm), the medial ulna and the lateral radius (forearm). The joint between the humerus and the ulna is called humeroulnar joint and the joint between the humerus and the radius is called humeroradial joint. Lateral and medial collateral ligaments stabilize the elbow. Statistically, 2.5 out of 10,000 people suffer from radial head fractures [1]. In these fractures the cartilage is often affected. Caused by the injured cartilage, degenerative diseases like posttraumatic arthrosis may occur. The resulting pain and reduced range of motion have an impact on the patient’s quality of life. Until now, there has not been a treatment which allows typical loads in daily life activities and offers good long-term results. A new surgical approach was developed with the motivation to reduce the progress of the posttraumatic arthrosis. Here, the radius is shortened by 3 mm in the proximal part [2]. By this means, the load of the radius is intended to be reduced due to a load shift to the ulna. Since the radius is the most important stabilizer of the elbow it has to be confirmed that the stability is not affected. In the first test (Fig. 1 left), pressure distributions within the humeroulnar and humeroradial joints a native and a shortened radius were measured using resistive pressure sensors (I5076 and I5027, Tekscan, USA). The humerus was loaded axially in a tension testing machine (Z010, Zwick Roell, Germany) in 50 N steps up to 400 N. From the humerus the load is transmitted through both the radius and the ulna into the hand which is fixed on the ground. In the second test (Fig. 1 right), the joint stability was investigated using a digital image correlation system to measure the displacement of the ulna. Here, the humerus is fixed with a desired flexion angle and the unconstrained forearm lies on the ground. A rope connects the load actuator with a hook fixed in the ulna. A guide roller is used so that the rope pulls the ulna horizontally when a tensile load is applied. This creates a moment about the elbow joint with a maximum value of 7.5 Nm. Measurements were performed with varying flexion angles (0°, 30°, 60°, 90°, 120°). For both tests and each measurement, seven specimens were used. Student ́s t-test was employed to determine whether the mean values of the measurements in native specimen and operated specimens differ significantly.
Y1  - 2016
U6  - http://dx.doi.org/10.17185/duepublico/40821
SP  - 7
EP  - 8
PB  - Universität Duisburg-Essen
CY  - Duisburg
ER  - 
TY  - CHAP
A1  - Frotscher, Ralf
A1  - Staat, Manfred
ED  - Nithiarasu, Perumal
T1  - Homogenization of a cardiac tissue construct
T2  - CMBE15 : 4th International Conference on Computational & Mathematical Biomedical Engineering ; 29th June - 1st July 2015 ; École Normale Supérieure de Cachan ; Cachan (Paris), France
Y1  - 2015
SN  - 2227-9385
N1  - Konferenzband unter:
http://www.compbiomed.net/getfile.php?type=12/site_documents&id=Proceedings_2227-9385_compressed.pdf
SP  - 645
EP  - 648
PB  - CMBE
CY  - [s.l.]
ER  - 
TY  - CHAP
A1  - Spannhake, Jan
A1  - Schulz, Olaf
A1  - Helwig, Andreas
A1  - Krenkow, Angelika
A1  - Müller, Gerhard
A1  - Doll, Theodor
T1  - High-temperature MEMS heater platforms: long-term performance of metal and semiconductor heater materials
N2  - Micromachined thermal heater platforms offer low electrical power consumption and high modulation speed, i.e. properties which are advantageous for realizing nondispersive infrared (NDIR) gas- and liquid monitoring systems. In this paper, we report on investigations on silicon-on-insulator (SOI) based infrared (IR) emitter devices heated by employing different kinds of metallic and semiconductor heater materials. Our results clearly reveal the superior high-temperature performance of semiconductor over metallic heater materials. Long-term stable emitter operation in the vicinity of 1300 K could be attained using heavily antimony-doped tin dioxide (SnO2:Sb) heater elements.
KW  - Biosensor
KW  - Hotplate
KW  - heater metallisation
KW  - high-temperature stability
KW  - electro-migration
KW  - doped silicon
KW  - doped metal oxide
KW  - antimony doped tin oxide
Y1  - 2006
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1513
ER  - 
TY  - CHAP
A1  - Müller-Veggian, Mattea
A1  - Dehnhardt, W.
A1  - Merdinger, I. G.
A1  - Mills, S. J.
T1  - High-spin yrast states in transitional nuclei ¹³²,¹³⁴ Ce
T2  - Proceedings of the International Conference on Nuclear Physics : Munich, August 27 - September 1, 1973
Y1  - 1973
SN  - 0-7204-0280-8
SP  - 180
PB  - North Holland Pub.
CY  - Amsterdam
ER  - 
TY  - CHAP
A1  - Ballmann, J.
A1  - Raatschen, Hans-Jürgen
A1  - Staat, Manfred
T1  - High stress intensities in focussing zones of waves
N2  - The propagation of mechanical waves in plates of isotropic elastic material is investigated. After a short introduction to the understanding of focussing of stress waves in a plate with a curved boundary the method of characteristics is applied to a plate of hyperelastic material. Using this method the propagation of acceleration waves is discussed. Based on this a numerical difference scheme is developed for solving initial-boundary-value problems and applied to two examples: propagation of a point disturbance in a homogeneously finitely strained non-linear elastic plate and geometrical focussing in al linear elastic plate.
KW  - Technische Mechanik
KW  - Wellen
KW  - mechanical waves
Y1  - 1985
U6  - http://dx.doi.org/10.1016/B978-0-444-42520-1.50015-3
ER  - 
TY  - CHAP
A1  - Kreutz, Christian
A1  - Lörgen, Jürgen
A1  - Graewe, Boris
A1  - Bargon, Joachim
A1  - Yoshida, Mayumi
A1  - Freso, Zachary M.
A1  - Frèchet, Jean M. J.
T1  - High frequency quartz micro balances: a promising path to enhanced sensitivity of gravimetric sensors
N2  - An array of 50 MHz quartz microbalances (QMBs) coated with a dendronized polymer was used to detect small amounts of volatile organic compounds (VOCs) in the gas phase. The results were compared to those obtained with the commonly used 10 MHz QMBs. The 50 MHz QMBs proved to be a powerful tool for the detection of VOCs in the gas phase; therefore, they represent a promising alternative to the much more delicate surface acoustic wave devices (SAWs).
KW  - Biosensor
KW  - Quartz micro balances
KW  - electronic noses dendronized polymers inverted mesa technology
Y1  - 2006
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1445
ER  - 
TY  - CHAP
A1  - Kloock, Joachim P.
A1  - Schöning, Michael Josef
T1  - Heavy metal detection with semiconductor devices based on PLD-prepared chalcogenide glass thin films
T2  - Armenian Journal of Physics
Y1  - 2007
SN  - 1829-1171
SP  - 95
EP  - 98
ER  - 
TY  - CHAP
A1  - Kloock, Joachim P.
A1  - Moreno, Lia
A1  - Huachupoma, S.
A1  - Xu, J.
A1  - Wagner, Torsten
A1  - Bratov, A.
A1  - Doll, T.
A1  - Vlasov, Y.
A1  - Schöning, Michael Josef
ED  - Gerlach, Gerald
T1  - Halbleiterbasierte Schwermetallsensorik auf der Basis von Chalkogenidgläsern für zukünftige „Lab on Chip“-Anwendungen
T2  - 7. Dresdner Sensor-Symposium - Neue Herausforderungen und Anwendungen in der Sensortechnik
Y1  - 2005
SN  - 3-938863-29-3
SP  - 221
EP  - 224
PB  - TUDpress, Verl. der Wissenschaften
CY  - Dresden
ER  - 
TY  - CHAP
A1  - Kraft, Bodo
A1  - Retkowitz, Daniel
T1  - Graph Transformations for Dynamic Knowledge Processing
N2  - In: Proceedings of the 39th Annual Hawaii International Conference on System Sciences, 2006. HICSS '06 http://dx.doi.org/10.1109/HICSS.2006.200 The conceptual design phase at the beginning of the building construction process is not adequately supported by any CAD-tool. Conceptual design support needs regarding two aspects: first, the architect must be able to develop conceptual sketches that provide abstraction from constructive details. Second, conceptually relevant knowledge should be available to check these conceptual sketches. The paper deals with knowledge to formalize for conceptual design. To enable domain experts formalizing knowledge, a graph-based specification is presented that allows the development of a domain ontology and design rules specific for one class of buildings at runtime. The provided tool support illustrates the introduced concepts and demonstrates the consistency analysis between knowledge and conceptual design.
KW  - CAD
KW  - CAD
KW  - Bauingenieurwesen
KW  - CAD
KW  - civil engineering
Y1  - 2006
ER  - 
TY  - CHAP
A1  - Kraft, Bodo
A1  - Meyer, Oliver
A1  - Nagl, Manfred
T1  - Graph technology support for conceptual design in civil engineering
N2  - In: Advances in intelligent computing in engineering : proceedings of the 9.International EG-ICE Workshop ; Darmstadt, (01 - 03 August) 2002 / Martina Schnellenbach-Held ... (eds.) . - Düsseldorf: VDI-Verl., 2002 .- Fortschritt-Berichte VDI, Reihe 4, Bauingenieurwesen ; 180 ; S. 1-35 The paper describes a novel way to support conceptual design in civil engineering. The designer uses semantical tools guaranteeing certain internal structures of the design result but also the fulfillment of various constraints. Two different approaches and corresponding tools are discussed: (a) Visually specified tools with automatic code generation to determine a design structure as well as fixing various constraints a design has to obey. These tools are also valuable for design knowledge specialist. (b) Extensions of existing CAD tools to provide semantical knowledge to be used by an architect. It is sketched how these different tools can be combined in the future. The main part of the paper discusses the concepts and realization of two prototypes following the two above approaches. The paper especially discusses that specific graphs and the specification of their structure are useful for both tool realization projects.
KW  - CAD
KW  - CAD ;
KW  - CAD
KW  - civil engineering
Y1  - 2002
SN  - 3-18-318004-9
ER  - 
TY  - CHAP
A1  - Wagner, Thorsten
A1  - Kohl, Claus-Dieter
A1  - Fröba, Michael
A1  - Tiemann, Michael
T1  - Gas sensing properties of ordered mesoporous SnO2
N2  - We report on the synthesis and CO gas-sensing properties of mesoporous tin(IV) oxides (SnO2). For the synthesis cetyltrimethylammonium bromide (CTABr) was used as a structure-directing agent; the resulting SnO2 powders were applied as films to commercially available sensor substrates by drop coating. Nitrogen physisorption shows specific surface areas up to 160 m2·g-1 and mean pore diameters of about 4 nm, as verified by TEM. The film conductance was measured in dependence on the CO concentration in humid synthetic air at a constant temperature of 300 °C. The sensors show a high sensitivity at low CO concentrations and turn out to be largely insensitive towards changes in the relative humidity. We compare the materials with commercially available SnO2-based sensors.
KW  - Biosensor
KW  - Tin oxide
KW  - sensing properties
KW  - CO
KW  - humidity
Y1  - 2006
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1422
ER  - 
TY  - CHAP
A1  - Staat, Manfred
A1  - Ballmann, J.
T1  - Fundamental aspects of numerical methods for the propagation of multi-dimensional nonlinear waves in solids
T2  - Nonlinear hyperbolic equations : theory, computations methods, and applications ; proceedings of the 2nd International Conference on Nonlinear Hyperbolic Problems, Aachen
N2  - The nonlinear scalar constitutive equations of gases lead to a change in sound speed from point to point as would be found in linear inhomogeneous (and time dependent) media. The nonlinear tensor constitutive equations of solids introduce the additional local effect of solution dependent anisotropy. The speed of a wave passing through a point changes with propagation direction and its rays are inclined to the front. It is an open question whether the widely used operator splitting techniques achieve a dimensional splitting with physically reasonable results for these multi-dimensional problems. May be this is the main reason why the theoretical and numerical investigations of multi-dimensional wave propagation in nonlinear solids are so far behind gas dynamics. We hope to promote the subject a little by a discussion of some fundamental aspects of the solution of the equations of nonlinear elastodynamics. We use methods of characteristics because they only integrate mathematically exact equations which have a direct physical interpretation.
KW  - Nichtlineare Welle
KW  - Nichtlineare Gleichung
KW  - Festkörper
KW  - Elastodynamik
KW  - Multi-dimensional wave propagation
KW  - nonlinear solids
KW  - nonlinear tensor constitutive equation
Y1  - 1989
SP  - 574
EP  - 588
ER  - 
TY  - CHAP
A1  - Poghossian, Arshak
A1  - Schumacher, Kerstin
A1  - Kloock, Joachim P.
A1  - Rosenkranz, Christian
A1  - Schultze, Joachim W.
A1  - Müller-Veggian, Mattea
A1  - Schöning, Michael Josef
T1  - Functional testing and characterisation of ISFETs on wafer level by means of a micro-droplet cell
N2  - A wafer-level functionality testing and characterisation system for ISFETs (ionsensitive field-effect transistor) is realised by means of integration of a specifically designed capillary electrochemical micro-droplet cell into a commercial wafer prober-station. The developed system allows the identification and selection of “good” ISFETs at the earliest stage and to avoid expensive bonding, encapsulation and packaging processes for nonfunctioning ISFETs and thus, to decrease costs, which are wasted for bad dies. The developed system is also feasible for wafer-level characterisation of ISFETs in terms of sensitivity, hysteresis and response time. Additionally, the system might be also utilised for wafer-level testing of further electrochemical sensors.
KW  - Biosensor
KW  - Biosensorik
KW  - ISFET
KW  - Wafer
KW  - ISFET
KW  - wafer-level testing
KW  - capillary micro-droplet cell
Y1  - 2006
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:a96-opus-1259
ER  - 
TY  - CHAP
A1  - Hafner, David
A1  - Ochs, Peter
A1  - Weickert, Joachim
A1  - Reißel, Martin
ED  - Rosenhahn, Bodo
T1  - FSI Schemes : Fast Semi-Iterative Solvers for PDEs and Optimisation Methods
T2  - Pattern Recognition : 38th German Conference, GCPR 2016, Hannover, Germany, September 12-15, 2016, Proceedings
Y1  - 2016
SN  - 978-3-319-45886-1
U6  - http://dx.doi.org/10.1007/978-3-319-45886-1_8
N1  - Lecture Notes in Computer Science; Vol. 9796
SP  - 91
EP  - 102
PB  - Springer
ER  - 
TY  - CHAP
A1  - Büsgen, André
A1  - Klöser, Lars
A1  - Kohl, Philipp
A1  - Schmidts, Oliver
A1  - Kraft, Bodo
A1  - Zündorf, Albert
ED  - Cuzzocrea, Alfredo
ED  - Gusikhin, Oleg
ED  - Hammoudi, Slimane
ED  - Quix, Christoph
T1  - From cracked accounts to fake IDs: user profiling on German telegram black market channels
T2  - Data Management Technologies and Applications
N2  - Messenger apps like WhatsApp and Telegram are frequently used for everyday communication, but they can also be utilized as a platform for illegal activity. Telegram allows public groups with up to 200.000 participants. Criminals use these public groups for trading illegal commodities and services, which becomes a concern for law enforcement agencies, who manually monitor suspicious activity in these chat rooms. This research demonstrates how natural language processing (NLP) can assist in analyzing these chat rooms, providing an explorative overview of the domain and facilitating purposeful analyses of user behavior. We provide a publicly available corpus of annotated text messages with entities and relations from four self-proclaimed black market chat rooms. Our pipeline approach aggregates the extracted product attributes from user messages to profiles and uses these with their sold products as features for clustering. The extracted structured information is the foundation for further data exploration, such as identifying the top vendors or fine-granular price analyses. Our evaluation shows that pretrained word vectors perform better for unsupervised clustering than state-of-the-art transformer models, while the latter is still superior for sequence labeling.
KW  - Clustering
KW  - Natural language processing
KW  - Information extraction
KW  - Profile extraction
KW  - Text mining
Y1  - 2023
SN  - 978-3-031-37889-8 (Print)
SN  - 978-3-031-37890-4 (Online)
U6  - http://dx.doi.org/10.1007/978-3-031-37890-4_9
N1  - 10th International Conference, DATA 2021, Virtual Event, July 6–8, 2021, and 11th International Conference, DATA 2022, Lisbon, Portugal, July 11-13, 2022
SP  - 176
EP  - 202
PB  - Springer
CY  - Cham
ER  - 
TY  - CHAP
A1  - Maurer, Florian
T1  - Framework to provide a simulative comparison of different energy market designs
T2  - Energy Informatics
N2  - Useful market simulations are key to the evaluation of diferent market designs existing of multiple market mechanisms or rules. Yet a simulation framework which has a comparison of diferent market mechanisms in mind was not found. The need to create an objective view on different sets of market rules while investigating meaningful agent strategies concludes that such a simulation framework is needed to advance the research on this subject. An overview of diferent existing market simulation models is given which also shows the research gap and the missing capabilities of those systems. Finally, a methodology is outlined how a novel market simulation which can answer the research questions can be developed.
Y1  - 2022
U6  - http://dx.doi.org/10.1186/s42162-022-00215-6
SN  - 2520-8942
VL  - 5
IS  - 2
SP  - 18
EP  - 20
PB  - Springer Nature
ER  - 
TY  - CHAP
A1  - Kuhlen, Max
A1  - Digel, Ilya
ED  - Erni, Daniel
ED  - Fischerauer, Alice
ED  - Himmel, Jörg
ED  - Seeger, Thomas
ED  - Thelen, Klaus
T1  - Fluorescence signatures and detection limits of ubiquitous terrestrial bio-compounds
T2  - 2nd YRA MedTech Symposium 2017 : June 8th - 9th / 2017 / Hochschule Ruhr-West
Y1  - 2017
SN  - 978-3-9814801-9-1
U6  - http://dx.doi.org/10.17185/duepublico/43984
N1  - A young researchers track of the 7th IEEE Workshop & SENSORICA 2017
SP  - 102
EP  - 103
PB  - Universität Duisburg-Essen
CY  - Duisburg
ER  - 
TY  - CHAP
A1  - Oberländer, Jan
A1  - Kirchner, Patrick
A1  - Keusgen, M.
A1  - Schöning, Michael Josef
T1  - Flexible polyimide-based calorimetric gas sensors for monitoring hy-drogen peroxide in sterilisation processes of aseptic filling machines
T2  - Sensoren und Messsysteme 2014 ; Beiträge der 17. GMA/ITG-Fachtagung vom 3. bis 4. Juni 2014 in Nürnberg. (ITG-Fachbericht ; 250)
Y1  - 2014
SN  - 978-3-8007-3622-5
SP  - 1
EP  - 4
PB  - VDE-Verl.
CY  - Düsseldorf
ER  - 
TY  - CHAP
A1  - Tran, Thanh Ngoc
A1  - Staat, Manfred
A1  - Kreißig, R.
T1  - Finite element shakedown and limit reliability analysis of thin shells
N2  - A procedure for the evaluation of the failure probability of elastic-plastic thin shell structures is presented. The procedure involves a deterministic limit and shakedown analysis for each probabilistic iteration which is based on the kinematical approach and the use the exact Ilyushin yield surface. Based on a direct definition of the limit state function, the non-linear problems may be efficiently solved by using the First and Second Order Reliabiblity Methods (Form/SORM). This direct approach reduces considerably the necessary knowledge of uncertain technological input data, computing costs and the numerical error. In: Computational plasticity / ed. by Eugenio Onate. Dordrecht: Springer 2007. VII, 265 S. (Computational Methods in Applied Sciences ; 7) (COMPLAS IX. Part 1 . International Center for Numerical Methods in Engineering (CIMNE)). ISBN 978-1-402-06576-7  S. 186-189
KW  - Finite-Elemente-Methode
KW  - Limit analysis
KW  - shakedown analysis
KW  - Exact Ilyushin yield surface
KW  - Random variable
KW  - First Order Reliabiblity Method
Y1  - 2007
ER  - 
TY  - CHAP
A1  - Duong, Minh Tuan
A1  - Nguyen, Nhu Hunyh
A1  - Staat, Manfred
T1  - Finite Element Implementation of a 3D Fung-type Model
T2  - ESMC-2012 - 8th European Solid Mechanics Conference, Graz, Austria, July 9-13, 2012
Y1  - 2012
SN  - 978-3-85125-223-1
PB  - Verlag d. Technischen Universität Graz
CY  - Graz
ER  - 
TY  - CHAP
A1  - Hingley, Peter
A1  - Dikta, Gerhard
T1  - Finding a well performing box-jenkins forecasting model for annualised patent filings counts
T2  - International Symposium on Forecasting, Thessaloniki, Greece, June 2019
Y1  - 2019
ER  -