TY - JOUR
A1 - Siepmann, Thomas
T1 - Exploitation Plan of the TELEflow Project
Y1 - 1999
N1 - 4th Framework Programme Report
CY - Brussels
ER -
TY - CHAP
A1 - Spasov, Yulian
A1 - Döring, Bernd
A1 - Griffin, Allan
T1 - Exploiting the thermal mass in an energy efficient building - a comparison exercise between IES Apache and TRNSYS models
T2 - Clima 2007 WellBeing Indoors: 9th Rehva World Congress, 10-14 June 2007, Helsinki, Finland : proceedings
Y1 - 2007
SN - 978-952-99898-2-9
SP - 1
EP - 7
CY - Helsinki
ER -
TY - CHAP
A1 - Büsgen, André
A1 - Klöser, Lars
A1 - Kohl, Philipp
A1 - Schmidts, Oliver
A1 - Kraft, Bodo
A1 - Zündorf, Albert
T1 - Exploratory analysis of chat-based black market profiles with natural language processing
T2 - Proceedings of the 11th International Conference on Data Science, Technology and Applications
N2 - Messenger apps like WhatsApp or Telegram are an integral part of daily communication. Besides the various positive effects, those services extend the operating range of criminals. Open trading groups with many thousand participants emerged on Telegram. Law enforcement agencies monitor suspicious users in such chat rooms. This research shows that text analysis, based on natural language processing, facilitates this through a meaningful domain overview and detailed investigations. We crawled a corpus from such self-proclaimed black markets and annotated five attribute types products, money, payment methods, user names, and locations. Based on each message a user sends, we extract and group these attributes to build profiles. Then, we build features to cluster the profiles. Pretrained word vectors yield better unsupervised clustering results than current
state-of-the-art transformer models. The result is a semantically meaningful high-level overview of the user landscape of black market chatrooms. Additionally, the extracted structured information serves as a foundation for further data exploration, for example, the most active users or preferred payment methods.
KW - Clustering
KW - Natural Language Processing
KW - Information Extraction
KW - Profile Extraction
KW - Text Mining
Y1 - 2022
SN - 978-989-758-583-8
U6 - https://doi.org/10.5220/0011271400003269
SN - 2184-285X
N1 - 11th International Conference on Data Science, Technology and Applications DATA - Volume 1, 83-94, 2022, Lisbon, Portugal
SP - 83
EP - 94
ER -
TY - CHAP
A1 - Siegert, Petra
A1 - Pohl, Martina
A1 - Kneen, Malea M.
A1 - Pogozheva, Irina D.
A1 - Kenyon, George L.
A1 - McLeish, Michael J.
T1 - Exploring the substrate specificity of benzoylformate decarboxylase, pyruvate decarboxylase, and benzaldehyde lyase
T2 - Thiamine : catalytic mechanisms in normal and disease states / ed. by Frank Jordan ...
Y1 - 2004
SN - 0-8247-4062-9
SP - 275
EP - 290
PB - Dekker
CY - New York, NY
ER -
TY - JOUR
A1 - Göddeke, Dominik
A1 - Strzodka, Robert
A1 - Mohd-Yusof, Jamaludin
A1 - McCormick, Patrick
A1 - Buijssen, Sven H.M.
A1 - Grajewski, Matthias
A1 - Turek, Stefan
T1 - Exploring weak scalability for FEM calculations on a GPU-enhanced cluster
JF - Parallel Computing
Y1 - 2007
U6 - https://doi.org/10.1016/j.parco.2007.09.002
SN - 0167-8191
VL - 33
IS - 10-11
SP - 685
EP - 699
ER -
TY - BOOK
A1 - Janz, Norbert
A1 - Ebling, Günther
T1 - Export and Innovation Activities in the German Service Sector. Empirical Evidence at the Firm Level / Ebling, G.. und N. Janz
Y1 - 1999
N1 - ZEW-Discussion Paper 99-53 online unter ftp://ftp.zew.de/pub/zew-docs/dp/dp5399.pdf
PB - ZEW Zentrum für Europäische Wirtschaftsförderung
CY - Mannheim
ER -
TY - JOUR
A1 - Reinhardt, T.
A1 - Bitz, Andreas
A1 - El Ouardi, A.
A1 - Streckert, J.
A1 - Sommer, A.
A1 - Lerchl, A.
A1 - Hansen, V.
T1 - Exposure set-ups for in vivo experiments using radial waveguides
JF - Radiation Protection Dosimetry
Y1 - 2007
U6 - https://doi.org/10.1093/rpd/ncm370
SN - 1742-3406
VL - 124
IS - 1
SP - 21
EP - 26
ER -
TY - JOUR
A1 - Schlamann, Marc
A1 - Voigt, Melanie A.
A1 - Maderwald, Stefan
A1 - Bitz, Andreas
A1 - Kraff, Oliver
A1 - Ladd, Susanne C.
A1 - Ladd, Mark E.
A1 - Forsting, Michael
A1 - Wilhelm, Hans
T1 - Exposure to high-field MRI does not affect cognitive function
JF - Journal of Magnetic Resonance Imaging
N2 - Purpose
To assess potential cognitive deficits under the influence of static magnetic fields at various field strengths some studies already exist. These studies were not focused on attention as the most vulnerable cognitive function. Additionally, mostly no magnetic resonance imaging (MRI) sequences were performed.
Materials and Methods
In all, 25 right-handed men were enrolled in this study. All subjects underwent one MRI examination of 63 minutes at 1.5 T and one at 7 T within an interval of 10 to 30 days. The order of the examinations was randomized. Subjects were referred to six standardized neuropsychological tests strictly focused on attention immediately before and after each MRI examination. Differences in neuropsychological variables between the timepoints before and after each MRI examination were assessed and P-values were calculated
Results
Only six subtests revealed significant differences between pre- and post-MRI. In these tests the subjects achieved better results in post-MRI testing than in pre-MRI testing (P = 0.013–0.032). The other tests revealed no significant results.
Conclusion
The improvement in post-MRI testing is only explicable as a result of learning effects. MRI examinations, even in ultrahigh-field scanners, do not seem to have any persisting influence on the attention networks of human cognition immediately after exposure.
Y1 - 2010
U6 - https://doi.org/10.1002/jmri.22065
SN - 1522-2586
VL - 31
IS - 5
SP - 1061
EP - 1066
PB - Wiley-Liss
CY - New York
ER -
TY - CHAP
A1 - Rens, Gavin
A1 - Ferrein, Alexander
A1 - Poel, Etienne van der
T1 - Extending DTGolog to deal with POMD-Ps
T2 - Proceedings of the Nineteenth Annual Symposium of the Pattern Recognition Association of South Africa (PRASA 2008)
Y1 - 2008
SP - 49
EP - 54
ER -
TY - JOUR
A1 - Ferrein, Alexander
A1 - Fritz, Christian
A1 - Lakemeyer, Gerhard
T1 - Extending DTGOLOG with Options / Ferrein, Alexander ; Fritz, Christian ; Lakemeyer, Gerhard
JF - IJCAI-03, Proceedings of the Eighteenth International Joint Conference on Artificial Intelligence, Acapulco, Mexico, August 9-15, 2003
Y1 - 2003
SP - 1391
EP - 1393
ER -
TY - JOUR
A1 - Schroth, P.
A1 - Schöning, Michael Josef
A1 - Lüth, H.
A1 - Weißbecker, B.
A1 - Hummel, Hans E.
A1 - Schütz, S.
T1 - Extending the capabilities of an antenna/chip biosensor by employing various insect species
JF - Sensors and Actuators B. 78 (2001), H. 1-3
Y1 - 2001
SN - 0925-4005
SP - 1
EP - 5
ER -
TY - JOUR
A1 - Schroth, P.
A1 - Schöning, Michael Josef
A1 - Lüth, H.
A1 - Weißbecker, B.
A1 - Hummel, Hans E.
A1 - Schütz, S.
T1 - Extending the capabilities of an antenna/chip biosensor by employing various insect species
JF - Proceedings : Copenhagen, Denmark, 27 - 30 August 2000 / [ed.: R. de Reus ...]
Y1 - 2000
SN - 87-89935-50-0
N1 - Eurosensors ; (14, 2000, København) ; Eurosensors ; (14 : ; 2000.08.27-30 : ; Copenhagen) ; European Conference on Solid-State Transducers ; (14 : ; 2000.08.27-30 : ; Copenhagen)
SP - 27
EP - 30
PB - MIC, Mikroelektronik Centret
CY - Lyngby, Denmark
ER -
TY - JOUR
A1 - Prume, Klaus
A1 - Muralt, Paul
A1 - Calame, Florian
A1 - Schmitz-Kempen, Thorsten
T1 - Extensive electromechanical characterization of PZT thin films for MEMS applications by electrical and mechanical excitation signals / Prume, Klaus ; Muralt, Paul ; Calame, Florian ; Schmitz-Kempen, Thorsten ; Tiedke, Stephan
JF - Journal of Electroceramics. 19 (2007), H. 4
Y1 - 2007
SN - 1385-3449
SP - 407
EP - 411
ER -
TY - JOUR
A1 - Ribitsch, D.
A1 - Heumann, S.
A1 - Karl, W.
A1 - Gerlach, J.
A1 - Leber, R.
A1 - Birner-Gruenberger, R.
A1 - Gruber, K.
A1 - Eiteljoerg, I.
A1 - Remler, P.
A1 - Siegert, Petra
A1 - Lange, J.
A1 - Maurer, Karl-Heinz
A1 - Berg, G.
A1 - Guebitz, G. M.
A1 - Schwab, H.
T1 - Extracellular serine proteases from Stenotrophomonas maltophilia: Screening, isolation and heterologous expression in E. coli
JF - Journal of biotechnology
N2 - A large strain collection comprising antagonistic bacteria was screened for novel detergent proteases. Several strains displayed protease activity on agar plates containing skim milk but were inactive in liquid media. Encapsulation of cells in alginate beads induced protease production. Stenotrophomonas maltophilia emerged as best performer under washing conditions. For identification of wash-active proteases, four extracellular serine proteases called StmPr1, StmPr2, StmPr3 and StmPr4 were cloned. StmPr2 and StmPr4 were sufficiently overexpressed in E. coli. Expression of StmPr1 and StmPr3 resulted in unprocessed, insoluble protein. Truncation of most of the C-terminal domain which has been identified by enzyme modeling succeeded in expression of soluble, active StmPr1 but failed in case of StmPr3.
From laundry application tests StmPr2 turned out to be a highly wash-active protease at 45 °C. Specific activity of StmPr2 determined with suc-l-Ala-l-Ala-l-Pro-l-Phe-p-nitroanilide as the substrate was 17 ± 2 U/mg. In addition we determined the kinetic parameters and cleavage preferences of protease StmPr2.
KW - Alginate beads
KW - Stenotrophomonas maltophilia
KW - Detergent protease
Y1 - 2012
U6 - https://doi.org/10.1016/j.jbiotec.2011.09.025
SN - 1873-4863 (E-Journal); 0168-1656 (Print)
VL - 157
IS - 1
SP - 140
EP - 147
PB - Elsevier
CY - Amsterdam
ER -
TY - CHAP
A1 - Hahn, Thomas
A1 - Kelly, Svenja
A1 - Muffler, Kai
A1 - Tippkötter, Nils
A1 - Ulber, Roland
ED - Hans-Jörg, Bart
ED - Pilz, Stephan
T1 - Extraction of lignocellulose and algae for the production of bulk and fine chemicals
T2 - Industrial scale natural products extraction
Y1 - 2011
SN - 978-3-527-32504-7 (Print)
SN - 978-3-527-63512-2 (Online)
U6 - https://doi.org/10.1002/9783527635122
SP - 221
EP - 245
PB - Wiley-VCH
CY - Weinheim
ER -
TY - JOUR
A1 - Mulhern, Colm
A1 - Bialonski, Stephan
A1 - Kantz, Holger
T1 - Extreme events due to localization of energy
JF - Physical Review E
Y1 - 2015
U6 - https://doi.org/10.1103/PhysRevE.91.012918
SN - 2470-0053
VL - 91
IS - 1
SP - 012918
ER -
TY - JOUR
A1 - Bung, Daniel Bernhard
T1 - Extreme flooding in Western Germany: some thoughts on hazards, return periods and risk
JF - Hydrolink
N2 - The low-pressure system Bernd involved extreme rainfalls in the Western part of Germany in July 2021,
resulting in major floods, severe damages and a tremendous number of casualties. Such extreme events
are rare and full flood protection can never be ensured with reasonable financial means. But still, this
event must be starting point to reconsider current design concepts. This article aims at sharing some
thoughts on potential hazards, the selection of return periods and remaining risk with the focus on Germany.
Y1 - 2021
IS - 4
SP - 108
EP - 113
PB - International Association for Hydro-Environment Engineering and Research (IAHR)
CY - Madrid
ER -
TY - CHAP
A1 - Birkl, Josef
A1 - Diendorfer, Gerhard
A1 - Kern, Alexander
A1 - Thern, Stephan
T1 - Extremely high lightning peak currents
T2 - 34th International Conference on Ligntning Protection, 02-07 September 2018
Y1 - 2018
SN - 978-1-5386-6635-7
ER -
TY - JOUR
A1 - Förster, Arnold
A1 - Adam, R.
A1 - Mikulics, M.
A1 - Schelten, J.
T1 - Fabrication and subpicosecond optical response of low-temperature-grown GaAs freestanding photoconductive devices. Adam, R.; Mikulics, M.; Forster, A.; Schelten, J.; Siegel, M.; Kordos, P.; Zheng, X.; Wu, S.; Sobolewski, R.
JF - Applied Physics Letters. 81 (2002), H. 18
Y1 - 2002
SN - 1077-3118
SP - 3485
EP - 3487
ER -
TY - JOUR
A1 - Takenaga, Shoko
A1 - Schneider, Benno
A1 - Erbay, E.
A1 - Biselli, Manfred
A1 - Schnitzler, Thomas
A1 - Schöning, Michael Josef
A1 - Wagner, Torsten
T1 - Fabrication of biocompatible lab-on-chip devices for biomedical applications by means of a 3D-printing process
JF - Physica status solidi (a)
N2 - A new microfluidic assembly method for semiconductor-based biosensors using 3D-printing technologies was proposed for a rapid and cost-efficient design of new sensor systems. The microfluidic unit is designed and printed by a 3D-printer in just a few hours and assembled on a light-addressable potentiometric sensor (LAPS) chip using a photo resin. The cell growth curves obtained from culturing cells within microfluidics-based LAPS systems were compared with cell growth curves in cell culture flasks to examine biocompatibility of the 3D-printed chips. Furthermore, an optimal cell culturing within microfluidics-based LAPS chips was achieved by adjusting the fetal calf serum concentrations of the cell culture medium, an important factor for the cell proliferation.
Y1 - 2015
U6 - https://doi.org/10.1002/pssa.201532053
SN - 1862-6319
VL - 212
IS - 6
SP - 1347
EP - 1352
PB - Wiley
CY - Weinheim
ER -
TY - JOUR
A1 - Weber, Hans-Joachim
A1 - Bhuju, S.
A1 - Chandra, S.
A1 - Mo, X.
T1 - Fabrication of biodegradable nanofibers for tubular scaffolds in regenerative medicine / Weber, H.-J. ; Bhuju, S. ; Chandra, S. ; Mo, X.
JF - Biomedizinische Technik. 49 (2004), H. Erg.-Bd. 2, Teil 2
Y1 - 2004
SP - 1016
EP - 1017
ER -
TY - JOUR
A1 - Förster, Arnold
A1 - Kicin, S
A1 - Cambel, V.
A1 - Kuliffayova, M.
T1 - Fabrication of GaAs symmetric pyramidal mesas prepared by wet-chemical etching using AlAs interlayer. Kicin, S.; Cambel, V.; Kuliffayova, M.; Gregusova, D.; Kovacova, E.; Novak, J.; Kostic, I.; Forster, A.
JF - Journal of Applied Physics. 91 (2002), H. 2
Y1 - 2002
SN - 1089-7550
SP - 878
EP - 880
ER -
TY - JOUR
A1 - Muck, A.
A1 - Wang, J.
A1 - Jacobs, M.
A1 - Chen, G.
A1 - Chatrathi, M. P.
A1 - Jurka, V.
A1 - Vyborny, Z.
A1 - Spillmann, S. D.
A1 - Sridharan, G.
A1 - Schöning, Michael Josef
T1 - Fabrication of poly(methyl methacrylate) microfluidic chips by atmospheric molding
JF - Analytical Chemistry. 76 (2004), H. 8
Y1 - 2004
SN - 0003-2700
SP - 2290
EP - 2297
ER -
TY - JOUR
A1 - Yoshinobu, T.
A1 - Schöning, Michael Josef
A1 - Finger, F.
A1 - Moritz, W.
A1 - Iwasaki, H.
T1 - Fabrication of thin-film LAPS with amorphous silicon
JF - Sensors. 4 (2004), H. 10
Y1 - 2004
SN - 1424-8220
SP - 163
EP - 169
ER -
TY - JOUR
A1 - Schiffels, Johannes
A1 - Baumann, Marcus
A1 - Selmer, Thorsten
T1 - Facile analysis of short-chain fatty acids as 4-nitrophenyl esters in complex anaerobic fermentation samples by high performance liquid chromatography
JF - Journal of Chromatography A. 1218 (2011), H. 34
Y1 - 2011
SN - 0021-9673
SP - 5848
EP - 5851
PB - Elsevier
CY - Amsterdam
ER -
TY - JOUR
A1 - Wendlandt, Tim
A1 - Koch, Claudia
A1 - Britz, Beate
A1 - Liedek, Anke
A1 - Schmidt, Nora
A1 - Werner, Stefan
A1 - Gleba, Yuri
A1 - Vahidpour, Farnoosh
A1 - Welden, Melanie
A1 - Poghossian, Arshak
A1 - Schöning, Michael Josef
T1 - Facile Purification and Use of Tobamoviral Nanocarriers for Antibody-Mediated Display of a Two-Enzyme System
JF - Viruses
N2 - Immunosorbent turnip vein clearing virus (TVCV) particles displaying the IgG-binding domains D and E of Staphylococcus aureus protein A (PA) on every coat protein (CP) subunit (TVCVPA) were purified from plants via optimized and new protocols. The latter used polyethylene glycol (PEG) raw precipitates, from which virions were selectively re-solubilized in reverse PEG concentration gradients. This procedure improved the integrity of both TVCVPA and the wild-type subgroup 3 tobamovirus. TVCVPA could be loaded with more than 500 IgGs per virion, which mediated the immunocapture of fluorescent dyes, GFP, and active enzymes. Bi-enzyme ensembles of cooperating glucose oxidase and horseradish peroxidase were tethered together on the TVCVPA carriers via a single antibody type, with one enzyme conjugated chemically to its Fc region, and the other one bound as a target, yielding synthetic multi-enzyme complexes. In microtiter plates, the TVCVPA-displayed sugar-sensing system possessed a considerably increased reusability upon repeated testing, compared to the IgG-bound enzyme pair in the absence of the virus. A high coverage of the viral adapters was also achieved on Ta2O5 sensor chip surfaces coated with a polyelectrolyte interlayer, as a prerequisite for durable TVCVPA-assisted electrochemical biosensing via modularly IgG-assembled sensor enzymes.
KW - biosensor
KW - horseradish peroxidase (HRP)
KW - glucose oxidase (GOx)
KW - enzyme cascade
KW - turnip vein clearing virus (TVCV)
KW - tobacco mosaic virus (TMV)
Y1 - 2023
U6 - https://doi.org/doi.org/10.3390/v15091951
SN - 1999-4915
N1 - This article belongs to the Special Issue "Tobamoviruses 2023"
VL - 9
IS - 15
PB - MDPI
CY - Basel
ER -
TY - CHAP
A1 - Leicht-Scholten, Carmen
A1 - Steuer-Dankert, Linda
A1 - Bouffier, Anna
T1 - Facing Future Challenges: Building Engineers for Tomorrow
T2 - Conference proceedings : new perspectives in science education : 5th Conference edition, Florence, Italy, 17-18 March 2016
N2 - Future engineers are increasingly confronted with the so-called Megatrends which are the big social challenges society has to cope with. These Megatrends, such as “Silver Society”, “Globalization”, “Mobility” and “Female Shift” require an application-oriented perspective on Diversity especially in the engineering field. Therefore, it is necessary to enable future engineers not only to look at the technical perspectives of a problem, but also to be able to see the related questions within societies they are developing their artefacts for. The aim of teaching engineering should be to prepare engineers for these requirements and to draw attention to the diverse needs in a globalized world.
Bringing together technical knowledge and social competences which go beyond a mere training of the so-called “soft skills”, is a new approach followed at RWTH Aachen University, one of the leading technical universities in Germany. RWTH Aachen University has established the bridging professorship “Gender and Diversity in Engineering” (GDI) which educates engineers with an interdisciplinary approach to expand engineering limits. In the frame of a sustainable teaching concept the research group under the leadership of Prof. Carmen Leicht-Scholten has developed an approach which imparts a supplication-specific Gender and Diversity expertise to engineers. In workshops students gain theoretical knowledge about Gender and Diversity and learn how to transfer their knowledge in their special field of study and later work. To substantiate this, the course participants have to solve case studies from real life. The cases which are developed in collaboration with non-profit organizations and enterprises from economy rise the students to challenges which are inspired by professional life. Evaluation shows the success of this approach as well as an increasing demand for such teaching formats.
KW - Diversity
KW - Engineering Education
KW - Gender
KW - Higher Education
Y1 - 2016
SN - 978-886292-705-5
SP - 32
EP - 37
ER -
TY - JOUR
A1 - Staat, Manfred
T1 - Failure probabilities of the primary circuit pressure boundary of an HTR-Module for process heat generation under accident conditions for different failure modes
JF - Nuclear Engineering and Design. 144 (1993), H. 1
Y1 - 1993
SN - 0029-5493
SP - 53
EP - 67
ER -
TY - JOUR
A1 - Lapitan, Denis G.
A1 - Rogatkin, Dmitrii A.
A1 - Persheyev, Sydulla K.
A1 - Kotliar, Konstantin
T1 - False spectra formation in the differential two-channel scheme of the laser Doppler flowmeter
JF - Biomedizinische Technik
N2 - Noise in the differential two-channel scheme of a classic laser Doppler flowmetry (LDF) instrument was studied. Formation of false spectral components in the output signal due to beating of electrical signals in the differential amplifier was found out. The improved block-diagram of the flowmeter was developed allowing to reduce the noise.
Y1 - 2018
U6 - https://doi.org/10.1515/bmt-2017-0060
SN - 0013-5585
VL - 63
IS - 4
SP - 439
EP - 444
PB - De Gruyter
CY - Berlin
ER -
TY - JOUR
A1 - Damrau, Karin
T1 - Fantastic Spatial Combinations in Film
JF - Architectural design : AD. 70 (2000), H. 1
Y1 - 2000
SN - 0003-8504
SP - 58
EP - 61
ER -
TY - JOUR
A1 - Helsper, Christoph
A1 - Mölter, W.
A1 - Kaminski, S.
T1 - Fast and Automated Testing of Different Air Filter Media / Mölter, W. ; Helsper, C. ; Kaminski, S.
JF - 1. Europäisches Symposium Partikelabscheidung aus Gasen : [PARTEC, Nürnberg, West Germany, 19. - 21. April 1989 ; preprints] = 1. European Symposium Separation of Particles from Gases / [Organisation und Durchführung: NürnbergMesse]. Hrsg. von: Friedrich Löffler
Y1 - 1989
N1 - Europäisches Symposion Partikelabscheidung aus Gasen <1, 1989, Nürnberg>
SP - 441
EP - 457
PB - NürnbergMesse
CY - Nürnberg
ER -
TY - JOUR
A1 - Helsper, Christoph
A1 - Mölter, W.
A1 - Kaminski, S.
T1 - Fast and Automated Testing of Different Air Filter Media / Mölter, W. ; Helsper, C. ; Kaminski, S.
JF - Proceedings of the Filtech Conference, Karlsruhe 1989, Vol. 1
Y1 - 1989
SP - 125
EP - 136
PB - Filtration Society
CY - Oadby
ER -
TY - JOUR
A1 - Helsper, Christoph
A1 - Mölter, W.
A1 - Willemer, W.
T1 - Fast and Automated Testing of Filter Media / Mölter, W. ; Helsper, C. ; Willemer, W.
JF - FILTECH Conference 1987 : Utrecht, Holland; September 23 - 25 1987 / org. by the Filtration Society , Vol. 1.
Y1 - 1987
N1 - Filtech Conference ; (1987, Utrecht)
SP - 106
EP - 112
PB - Filtration Society
CY - Loughborough
ER -
TY - JOUR
A1 - Mautner, Karin
A1 - Forster, Ralf
A1 - Kornhuber, Ralf
A1 - Sander, Oliver
T1 - Fast and Reliable Pricing of American Options with Local Volatility / Forster, Ralf ; Kornhuber, Ralf ; Mautner, Karin ; Sander, Oliver
JF - Domain Decomposition Methods in Science and Engineering XVII
Y1 - 2008
SN - 978-3-540-75198-4
N1 - Lecture Notes in Computational Sciece and Engineering ; 60
SP - 383
EP - 390
ER -
TY - JOUR
A1 - Oßmann, Martin
A1 - Hattrup, C.
A1 - Broeck, H. W. van der
T1 - Fast estimation techniques for digital control of resonant converters / Hattrup, C.; van der Broeck, H.W.; Ossmann, M.;
JF - IEEE Transaction on Power Electronics. 18 (2003), H. 1
Y1 - 2003
SN - 0885-8993
N1 - Part 2
SP - 365
EP - 372
ER -
TY - JOUR
A1 - Eilmann, Britta
A1 - Buchmann, Nina
A1 - Siegwolf, Rolf
A1 - Saurer, Matthias
A1 - Cherubini, Paolo
A1 - Rigling, Andreas
T1 - Fast response of Scots pine to improved water availability reflected in tree-ring width and δ13C
JF - Plant, Cell and Environment
N2 - Drought-induced forest decline, like the Scots pine mortality in inner-Alpine valleys, will gain in importance as the frequency and severity of drought events are expected to increase. To understand how chronic drought affects tree growth and tree-ring δ13C values, we studied mature Scots pine in an irrigation experiment in an inner-Alpine valley. Tree growth and isotope analyses were carried out at the annual and seasonal scale. At the seasonal scale, maximum δ13C values were measured after the hottest and driest period of the year, and were associated with decreasing growth rates. Inter-annual δ13C values in early- and latewood showed a strong correlation with annual climatic conditions and an immediate decrease as a response to irrigation. This indicates a tight coupling between wood formation and the freshly produced assimilates for trees exposed to chronic drought. This rapid appearance of the isotopic signal is a strong indication for an immediate and direct transfer of newly synthesized assimilates for biomass production. The fast appearance and the distinct isotopic signal suggest a low availability of old stored carbohydrates. If this was a sign for C-storage depletion, an increasing mortality could be expected when stressors increase the need for carbohydrate for defence, repair or regeneration.
Y1 - 2010
U6 - https://doi.org/10.1111/j.1365-3040.2010.02153.x
SN - 1365-3040 (Online)
SN - 0140-7791 (Print)
VL - 33
IS - 8
SP - 1351
EP - 1360
PB - Wiley-Blackwell
CY - Oxford
ER -
TY - JOUR
A1 - Helsper, Christoph
A1 - Mölter, W.
A1 - Kaminski, S.
T1 - Fast, Automated Testing of Different Air Filter Media / Mölter, W. ; Helsper, C. ; Kaminski, S.
JF - Filtration and Separation. 29 (1992), H. 1
Y1 - 1992
SN - 0015-1882
SP - 45
EP - 50
ER -
TY - JOUR
A1 - Kallweit, Stephan
A1 - Uchiyama, R.
A1 - Siekmann, H.
T1 - Fault Diagnostic Method for Pump Running Conditions Based on Process Modeling and Neural Network / Uchiyama, R. ; Kallweit, S. ; Siekmann, H.
JF - International Journal of Rotating Machinery. 4 (1998), H. 1
Y1 - 1998
SN - 1542-3034
SP - 49
EP - 59
ER -
TY - CHAP
A1 - Niemueller, Tim
A1 - Reuter, Sebastian
A1 - Ferrein, Alexander
ED - Almeida, Luis
T1 - Fawkes for the RoboCup Logistics League
T2 - RoboCup 2015: Robot World Cup XIX
Y1 - 2016
SN - 978-3-319-29339-4
U6 - https://doi.org/10.1007/978-3-319-29339-4_31
N1 - Lecture Notes in Computer Science ; 9513
SP - 365
EP - 373
PB - Springer International Publishing
CY - Cham
ER -
TY - JOUR
A1 - Kilic, S. A.
A1 - Raatschen, Hans-Jürgen
A1 - Körfgen, B.
A1 - Apaydin, N. M.
A1 - Astaneh-Asl, A.
T1 - FE Model of the Fatih Sultan Mehmet Suspension Bridge Using Thin Shell Finite Elements
JF - Arabian Journal for Science and Engineering
N2 - This paper presents the results of an eigenvalue analysis of the Fatih Sultan Mehmet Bridge. A high-resolution finite element model was created directly from the available design documents. All physical properties of the structural components were included in detail, so no calibration to the measured data was necessary. The deck and towers were modeled with shell elements. A nonlinear static analysis was performed before the eigenvalue calculation. The calculated natural frequencies and corresponding mode shapes showed good agreement with the available measured ambient vibration data. The calculation of the effective modal mass showed that nine modes had single contributions higher than 5 % of the total mass. They were in a frequency range up to 1.2 Hz. The comparison of the results for the torsional modes especially demonstrated the advantage of using thin shell finite elements over the beam modeling approach.
KW - Suspension bridge
KW - 3D nonlinear finite element model
KW - Thin shell finite elements
KW - Natural frequency
KW - Effective modal mass
Y1 - 2017
U6 - https://doi.org/10.1007/s13369-016-2316-y
SN - 2191-4281
VL - 42
IS - 3
SP - 1103
EP - 1116
PB - Springer Nature
ER -
TY - JOUR
A1 - Krause, Gregor
A1 - Rodriguez, Jackson
A1 - Stopic, Srecko
A1 - Friedrich, Bernd
T1 - Feasibility assessment of electrocoagulation towards a new sustainable wastewater treatment / Rodriguez, Jackson ; Stopic, Srecko ; Krause Gregor ; Friedrich, Bernd
JF - Environmental Science and Pollution Research. 14 (2007), H. 7
Y1 - 2007
SN - 0944-1344
SP - 477
EP - 482
ER -
TY - JOUR
A1 - El Moussaoui, Noureddine
A1 - Talbi, Sofian
A1 - Atmane, Ilyas
A1 - Kassmi, Khalil
A1 - Schwarzer, Klemens
A1 - Chayeb, Hamid
A1 - Bachiri, Najib
T1 - Feasibility of a new design of a Parabolic Trough Solar Thermal Cooker (PSTC)
JF - Solar Energy
N2 - In this article, we describe the structure, the functioning, and the tests of parabolic trough solar thermal cooker (PSTC). This oven is designed to meet the needs of rural residents, including Urban, which requires stable cooking temperatures above 200 °C. The cooking by this cooker is based on the concentration of the sun's rays on a glass vacuum tube and heating of the oil circulate in a big tube, located inside the glass tube. Through two small tubes, associated with large tube, the heated oil, rise and heats the pot of cooking pot containing the food to be cooked (capacity of 5 kg). This cooker is designed in Germany and extensively tested in Morocco for use by the inhabitants who use wood from forests.
During a sunny day, having a maximum solar radiation around 720 W/m2 and temperature ambient around 26 °C, maximum temperatures recorded of the small tube, the large tube and the center of the pot are respectively: 370 °C, 270 °C and 260 °C. The cooking process with food at high (fries, ..), we show that the cooking oil temperature rises to 200 °C, after 1 h of heating, the cooking is done at a temperature of 120 °C for 20 min. These temperatures are practically stable following variations and decreases in the intensity of irradiance during the day. The comparison of these results with those of the literature shows an improvement of 30–50 % on the maximum value of the temperature with a heat storage that could reach 60 min of autonomy. All the results obtained show the good functioning of the PSTC and the feasibility of cooking food at high temperature (>200 °C).
Y1 - 2020
U6 - https://doi.org/10.1016/j.solener.2020.03.079
SN - 0038-092X
VL - 201
IS - Vol. 201 (May 2020)
SP - 866
EP - 871
PB - Elsevier
CY - Amsterdam
ER -
TY - JOUR
A1 - Leimena, W.
A1 - Artmann, Gerhard
A1 - Dachwald, Bernd
A1 - Temiz Artmann, Aysegül
A1 - Gossmann, Matthias
A1 - Digel, Ilya
T1 - Feasibility of an in-situ microbial decontamination of an ice-melting probe
JF - Eurasian Chemico-Technological Journal. 12 (2010), H. 2
Y1 - 2010
SN - 1562-3920
SP - 145
EP - 150
ER -
TY - JOUR
A1 - Frauenrath, Tobias
A1 - Hezel, Fabian
A1 - Heinrichs, Uwe
A1 - Kozerke, Sebastian
A1 - Utting, Jane
A1 - Kob, Malte
A1 - Butenweg, Christoph
A1 - Boesiger, Peter
A1 - Niendorf, Thoralf
T1 - Feasibility of Cardiac Gating Free of Interference With Electro-Magnetic Fields at 1.5 Tesla, 3.0 Tesla and 7.0 Tesla Using an MR-Stethoscope
JF - Investigative Radiology
KW - phonocardiogram
KW - electrocardiogram
KW - cardiac gating
KW - high field MR imaging
KW - cardiovascular MR imaging
Y1 - 2009
U6 - https://doi.org/10.1097/RLI.0b013e3181b4c15e
SN - 1536-0210 (online)
SN - 0020-9996 (gedruckt)
VL - 44
IS - 9
SP - 539
EP - 547
PB - Lippincott Williams & Wilkins ; (via Ovid)
CY - Philadelphia, Pa
ER -
TY - GEN
A1 - Hezel, Fabian
A1 - Frauenrath, Tobias
A1 - Renz, Wolfgang
A1 - Schulz-Menger, Jeanette
A1 - Niendorf, Thoralf
T1 - Feasibility of CINE Myocardial T2* Mapping Using Susceptibility Weighted Gradient-Echo Imaging at 7.0 T
T2 - 2010 ISMRM-ESMRMB joint annual meeting
N2 - This study is designed to demonstrate the promise of susceptibility weighted 2D CINE FLASH and T2* Mapping of the heart at 7T.
Y1 - 2010
SN - 1545-4428
N1 - ISMRM-ESMRMB joint annual meeting, 1 - 7 May 2010, Stockholm, Sweden
ER -
TY - JOUR
A1 - Maas, Marnix C.
A1 - Vos, Eline K.
A1 - Lagemaat, Miriam W.
A1 - Bitz, Andreas
A1 - Orzada, Stephan
A1 - Kobus, Thiele
A1 - Kraff, Oliver
A1 - Maderwald, Stefan
A1 - Ladd, Mark E.
A1 - Scheenen, Tom W. J.
T1 - Feasibility of T₂-weighted turbo spin echo imaging of the human prostate at 7 tesla
JF - Magnetic Resonance in Medicine
N2 - Purpose
To demonstrate that high quality T₂-weighted (T2w) turbo spin-echo (TSE) imaging of the complete prostate can be achieved routinely and within safety limits at 7 T, using an external transceive body array coil only.
Methods
Nine healthy volunteers and 12 prostate cancer patients were scanned on a 7 T whole-body system. Preparation consisted of B₀ and radiofrequency shimming and localized flip angle calibration. T₁ and T₂ relaxation times were measured and used to define the T2w-TSE protocol. T2w imaging was performed using a TSE sequence (pulse repetition time/echo time 3000–3640/71 ms) with prolonged excitation and refocusing pulses to reduce specific absorption rate.
Results
High quality T2w TSE imaging was performed in less than 2 min in all subjects. Tumors of patients with gold-standard tumor localization (MR-guided biopsy or prostatectomy) were well visualized on 7 T imaging (n = 3). The number of consecutive slices achievable within a 10-g averaged specific absorption rate limit of 10 W/kg was ≥28 in all subjects, sufficient for full prostate coverage with 3-mm slices in at least one direction.
Conclusion
High quality T2w TSE prostate imaging can be performed routinely and within specific absorption rate limits at 7 T with an external transceive body array.
Y1 - 2014
U6 - https://doi.org/10.1002/mrm.24818
SN - 1522-2594
VL - 71
IS - 5
SP - 1711
EP - 1719
PB - Wiley-VCH
CY - Weinheim
ER -
TY - JOUR
A1 - Mueller, Tobias
A1 - Segin, Alexander
A1 - Weigand, Christoph
A1 - Schmitt, Robert H.
T1 - Feature selection for measurement models
JF - International journal of quality & reliability management
N2 - Purpose
In the determination of the measurement uncertainty, the GUM procedure requires the building of a measurement model that establishes a functional relationship between the measurand and all influencing quantities. Since the effort of modelling as well as quantifying the measurement uncertainties depend on the number of influencing quantities considered, the aim of this study is to determine relevant influencing quantities and to remove irrelevant ones from the dataset.
Design/methodology/approach
In this work, it was investigated whether the effort of modelling for the determination of measurement uncertainty can be reduced by the use of feature selection (FS) methods. For this purpose, 9 different FS methods were tested on 16 artificial test datasets, whose properties (number of data points, number of features, complexity, features with low influence and redundant features) were varied via a design of experiments.
Findings
Based on a success metric, the stability, universality and complexity of the method, two FS methods could be identified that reliably identify relevant and irrelevant influencing quantities for a measurement model.
Originality/value
For the first time, FS methods were applied to datasets with properties of classical measurement processes. The simulation-based results serve as a basis for further research in the field of FS for measurement models. The identified algorithms will be applied to real measurement processes in the future.
KW - Feature selection
KW - Modelling
KW - Measurement models
KW - Measurement uncertainty
Y1 - 2022
U6 - https://doi.org/10.1108/IJQRM-07-2021-0245
SN - 0265-671X
IS - Vol. ahead-of-print, No. ahead-of-print.
PB - Emerald Group Publishing Limited
CY - Bingley
ER -
TY - JOUR
A1 - Reißel, Martin
A1 - Takei, T.
A1 - Brune, M.
A1 - Köttgen, V.
T1 - FEM Based Durability Analysis of the Knuckle of a Passenger Car / Takei, T. ; Brune, M. ; Köttgen, V. ; Reissel, M.
JF - Proceedings. JSAE Annual Congress (1999)
Y1 - 1999
SN - 0919-1364
SP - 17
EP - 20
ER -
TY - CHAP
A1 - Pham, Phu Tinh
A1 - Nguyen, Thanh Ngoc
A1 - Staat, Manfred
T1 - FEM based shakedown analysis of hardening structures
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 - 870
EP - 882
ER -
TY - CHAP
A1 - Tran, Ngoc Trinh
A1 - Staat, Manfred
T1 - FEM shakedown analysis of Kirchhoff-Love plates under uncertainty of strength
T2 - Proceedings of UNCECOMP 2021
N2 - A new formulation to calculate the shakedown limit load of Kirchhoff plates under stochastic conditions of strength is developed. Direct structural reliability design by chance con-strained programming is based on the prescribed failure probabilities, which is an effective approach of stochastic programming if it can be formulated as an equivalent deterministic optimization problem. We restrict uncertainty to strength, the loading is still deterministic. A new formulation is derived in case of random strength with lognormal distribution. Upper bound and lower bound shakedown load factors are calculated simultaneously by a dual algorithm.
Y1 - 2021
SN - 978-618-85072-6-5
U6 - https://doi.org/10.7712/120221.8041.19047
N1 - UNCECOMP 2021, 4th International Conference on Uncertainty Quantification in Computational Sciences and Engineering, streamed from Athens, Greece, 28–30 June 2021.
SP - 323
EP - 338
ER -
TY - JOUR
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 - FEM shakedown analysis of structures under random strength with chance constrained programming
JF - Vietnam Journal of Mechanics
N2 - Direct methods, comprising limit and shakedown analysis, are a branch of computational mechanics. They play a significant role in mechanical and civil engineering design. The concept of direct methods aims to determine the ultimate load carrying capacity of structures beyond the elastic range. In practical problems, the direct methods lead to nonlinear convex optimization problems with a large number of variables and constraints. If strength and loading are random quantities, the shakedown analysis can be formulated as stochastic programming problem. In this paper, a method called chance constrained programming is presented, which is an effective method of stochastic programming to solve shakedown analysis problems under random conditions of strength. In this study, the loading is deterministic, and the strength is a normally or lognormally distributed variable.
KW - limit analysis
KW - shakedown analysis
KW - chance constrained programming
KW - stochastic programming
KW - reliability of structures
Y1 - 2022
U6 - https://doi.org/10.15625/0866-7136/17943
SN - 0866-7136
SN - 2815-5882
VL - 44
IS - 4
SP - 459
EP - 473
PB - Vietnam Academy of Science and Technology (VAST)
ER -
TY - CHAP
A1 - Tran, Ngoc Trinh
A1 - Tran, Thanh Ngoc
A1 - Matthies, Hermann G.
A1 - Stavroulakis, Georgios Eleftherios
A1 - Staat, Manfred
T1 - FEM Shakedown of uncertain structures by chance constrained programming
T2 - PAMM Proceedings in Applied Mathematics and Mechanics
Y1 - 2016
U6 - https://doi.org/10.1002/pamm.201610346
SN - 1617-7061
N1 - Special Issue:
Joint 87th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM) and Deutsche Mathematiker-Vereinigung
VL - 16
IS - 1
SP - 715
EP - 716
ER -
TY - JOUR
A1 - Jildeh, Zaid B.
A1 - Kirchner, Patrick
A1 - Oberländer, Jan
A1 - Kremers, Alexander
A1 - Wagner, Torsten
A1 - Wagner, Patrick H.
A1 - Schöning, Michael Josef
T1 - FEM-based modeling of a calorimetric gas sensor for hydrogen peroxide monitoring
JF - physica status solidi a : applications and materials sciences
N2 - A physically coupled finite element method (FEM) model is developed to study the response behavior of a calorimetric gas sensor. The modeled sensor serves as a monitoring device of the concentration of gaseous hydrogen peroxide (H2 O2) in a high temperature mixture stream in aseptic sterilization processes. The principle of operation of a calorimetric H2 O2 sensor is analyzed and the results of the numerical model have been validated by using previously published sensor experiments. The deviation in the results between the FEM model and experimental data are presented and discussed.
Y1 - 2017
U6 - https://doi.org/10.1002/pssa.201600912
SN - 1862-6319
IS - Early View
PB - Wiley-VCH
CY - Weinheim
ER -
TY - JOUR
A1 - Pham, Phu Tinh
A1 - Staat, Manfred
T1 - FEM-based shakedown analysis of hardening structures
JF - Asia Pacific journal on computational engineering
N2 - This paper develops a new finite element method (FEM)-based upper bound algorithm for limit and shakedown analysis of hardening structures by a direct plasticity method. The hardening model is a simple two-surface model of plasticity with a fixed bounding surface. The initial yield surface can translate inside the bounding surface, and it is bounded by one of the two equivalent conditions: (1) it always stays inside the bounding surface or (2) its centre cannot move outside the back-stress surface. The algorithm gives an effective tool to analyze the problems with a very high number of degree of freedom. Our numerical results are very close to the analytical solutions and numerical solutions in literature.
Y1 - 2014
U6 - https://doi.org/10.1186/2196-1166-1-4
SN - 2196-1166 (E-Journal)
IS - 1
SP - Article No. 4
PB - SpringerOpen
CY - Berlin
ER -
TY - JOUR
A1 - Staat, Manfred
A1 - Heitzer, M.
T1 - FEM-computation of load carrying capacity of highly loaded passive components by direct methods. Heitzer, M. ; Staat, M.
JF - Nuclear Engineering and Design. 193 (1999), H. 3
Y1 - 1999
SN - 0029-5493
SP - 349
EP - 358
ER -
TY - CHAP
A1 - Bhattarai, Aroj
A1 - Staat, Manfred
ED - Erni, Daniel
T1 - Female pelvic floor dysfunction: progress weakening of the support system
T2 - 1st YRA MedTech Symposium 2016 : April 8th / 2016 / University of Duisburg-Essen
N2 - The structure of the female pelvic floor (PF) is an inter-related system of bony pelvis,muscles, pelvic organs, fascias, ligaments, and nerves with multiple functions. Mechanically, thepelvic organ support system are of two types: (I) supporting system of the levator ani (LA) muscle,and (II) the suspension system of the endopelvic fascia condensation [1], [2]. Significantdenervation injury to the pelvic musculature, depolimerization of the collagen fibrils of the softvaginal hammock, cervical ring and ligaments during pregnancy and vaginal delivery weakens thenormal functions of the pelvic floor. Pelvic organ prolapse, incontinence, sexual dysfunction aresome of the dysfunctions which increases progressively with age and menopause due toweakened support system according to the Integral theory [3]. An improved 3D finite elementmodel of the female pelvic floor as shown in Fig. 1 is constructed that: (I) considers the realisticsupport of the organs to the pelvic side walls, (II) employs the improvement of our previous FEmodel [4], [5] along with the patient based geometries, (III) incorporates the realistic anatomy andboundary conditions of the endopelvic (pubocervical and rectovaginal) fascia, and (IV) considersvarying stiffness of the endopelvic fascia in the craniocaudal direction [3]. Several computationsare carried out on the presented computational model with healthy and damaged supportingtissues, and comparisons are made to understand the physiopathology of the female PF disorders.
Y1 - 2016
U6 - https://doi.org/10.17185/duepublico/40821
SP - 11
EP - 12
PB - Universität Duisburg-Essen
CY - Duisburg
ER -
TY - JOUR
A1 - Wiegand, Sandra
A1 - Voigt, Birgit
A1 - Albrecht, Dirk
A1 - Bongaerts, Johannes
A1 - Evers, Stefan
A1 - Hecker, Michael
A1 - Daniel, Rolf
A1 - Liesegang, Heiko
T1 - Fermentation stage-dependent adaptations of Bacillus licheniformis during enzyme production
JF - Microbial Cell Factories
Y1 - 2013
U6 - https://doi.org/10.1186/1475-2859-12-120
SN - 1475-2859
VL - 12
SP - 120
PB - Biomed Central
CY - London
ER -
TY - CHAP
A1 - Bornheim, Tobias
A1 - Grieger, Niklas
A1 - Bialonski, Stephan
T1 - FHAC at GermEval 2021: Identifying German toxic, engaging, and fact-claiming comments with ensemble learning
T2 - Proceedings of the GermEval 2021 Workshop on the Identification of Toxic, Engaging, and Fact-Claiming Comments : 17th Conference on Natural Language Processing KONVENS 2021
Y1 - 2021
U6 - https://doi.org/10.48415/2021/fhw5-x128
N1 - KONVENS (Konferenz zur Verarbeitung natürlicher Sprache/Conference on Natural Language Processing) 2021, 6. - 9. September 2021, Düsseldorf
SP - 105
EP - 111
PB - Heinrich Heine University
CY - Düsseldorf
ER -
TY - JOUR
A1 - Schütz, S.
A1 - Weißbecker, B.
A1 - Hummel, Hans E.
A1 - Schöning, Michael Josef
A1 - Riemer, A.
A1 - Kordos, P.
A1 - Lüth, H.
T1 - Field effect transistor-insect antenna junction
JF - Naturwissenschaften
Y1 - 1997
SN - 1432-1904
VL - 84
SP - 86
EP - 88
ER -
TY - JOUR
A1 - McArdell, Brian W.
A1 - Bartelt, Perry
A1 - Kowalski, Julia
T1 - Field observations of basal forces and fluid pore pressure in a debris flow
JF - Geophysical Research Letters (GRL)
N2 - Using results from an 8 m2 instrumented force plate we describe field measurements of normal and shear stresses, and fluid pore pressure for a debris flow. The flow depth increased from 0.1 to 1 m within the first 12 s of flow front arrival, remained relatively constant until 100 s, and then gradually decreased to 0.5 m by 600 s. Normal and shear stresses and pore fluid pressure varied in-phase with the flow depth. Calculated bulk densities are ρb = 2000–2250 kg m−3 for the bulk flow and ρf = 1600–1750 kg m−3 for the fluid phase. The ratio of effective normal stress to shear stress yields a Coulomb basal friction angle of ϕ = 26° at the flow front. We did not find a strong correlation between the degree of agitation in the flow, estimated using the signal from a geophone on the force plate, and an assumed dynamic pore fluid pressure. Our data support the idea that excess pore-fluid pressures are long lived in debris flows and therefore contribute to their unusual mobility.
KW - debris flow
Y1 - 2007
SN - 0094-8276
VL - 34
IS - 7
ER -
TY - JOUR
A1 - Schwarzer, Klemens
A1 - Vieira da Silva, Maria Eugenia
A1 - Schwarzer, Tarik
T1 - Field results in Namibia and Brazil of the new solar desalination system for decentralised drinking water production
JF - Desalination and water treatment. Vol. 31 (2011), iss. 1-3: selected papers presented at EuroMed 2010 — Desalination for Clean Water and Energy: Cooperation among Mediterranean Countries of Europe and MENA Region, 3–7 October 2010, Tel Aviv, Israel
Y1 - 2011
SP - 379
EP - 386
ER -
TY - JOUR
A1 - Schöning, Michael Josef
A1 - Poghossian, Arshak
A1 - Schultze, J. W.
A1 - Lüth, H.
T1 - Field-effect based multifunctional hybrid sensor module for the determination of both (bio-)chemical and physical paramters
JF - Proceedings of SPIE. 4576 (2002)
Y1 - 2002
SP - 149
EP - 159
ER -
TY - JOUR
A1 - Poghossian, Arshak
A1 - Jablonski, Melanie
A1 - Koch, Claudia
A1 - Bronder, Thomas
A1 - Rolka, David
A1 - Wege, Christina
A1 - Schöning, Michael Josef
T1 - Field-effect biosensor using virus particles as scaffolds for enzyme immobilization
JF - Biosensors and Bioelectronics
N2 - A field-effect biosensor employing tobacco mosaic virus (TMV) particles as scaffolds for enzyme immobilization is presented. Nanotubular TMV scaffolds allow a dense immobilization of precisely positioned enzymes with retained activity. To demonstrate feasibility of this new strategy, a penicillin sensor has been developed by coupling a penicillinase with virus particles as a model system. The developed field-effect penicillin biosensor consists of an Al-p-Si-SiO₂-Ta₂O₅-TMV structure and has been electrochemically characterized in buffer solutions containing different concentrations of penicillin G. In addition, the morphology of the biosensor surface with virus particles was characterized by scanning electron microscopy and atomic force microscopy methods. The sensors possessed a high penicillin sensitivity of ~ 92 mV/dec in a nearly-linear range from 0.1 mM to 10 mM, and a low detection limit of about 50 µM. The long-term stability of the penicillin biosensor was periodically tested over a time period of about one year without any significant loss of sensitivity. The biosensor has also been successfully applied for penicillin detection in bovine milk samples.
Y1 - 2018
U6 - https://doi.org/10.1016/j.bios.2018.03.036
SN - 0956-5663
VL - 110
SP - 168
EP - 174
PB - Elsevier
CY - Amsterdam
ER -
TY - CHAP
A1 - Jablonski, Melanie
A1 - Koch, Claudia
A1 - Bronder, Thomas
A1 - Poghossian, Arshak
A1 - Wege, Christina
A1 - Schöning, Michael Josef
T1 - Field-Effect Biosensors Modified with Tobacco Mosaic Virus Nanotubes as Enzyme Nanocarrier
T2 - MDPI Proceeding
Y1 - 2017
U6 - https://doi.org/10.3390/proceedings1040505
N1 - Eurosensors 2017 Conference, Paris, France, 3–6 September 2017
VL - 1
IS - 4
ER -
TY - JOUR
A1 - Beging, Stefan
A1 - Mlynek, Daniela
A1 - Hataihimakul, Sudkanung
A1 - Poghossian, Arshak
A1 - Baldsiefen, Gerhard
A1 - Busch, Heinz
A1 - Laube, Norbert
A1 - Kleinen, Lisa
A1 - Schöning, Michael Josef
T1 - Field-effect calcium sensor for the determination of the risk of urinary stone formation
JF - Sensors and Actuators B: Chemical. 144 (2010), H. 2
Y1 - 2010
N1 - 22nd International Conference on Eurosensors - Dresden, Germany, 7-10 September 2008 ; Eurosensors ; (22, 2008, Dresden)
SP - 374
EP - 379
ER -
TY - JOUR
A1 - Poghossian, Arshak
A1 - Karschuck, Tobias
A1 - Wagner, Patrick
A1 - Schöning, Michael Josef
T1 - Field-Effect Capacitors Decorated with Ligand-Stabilized Gold Nanoparticles: Modeling and Experiments
JF - Biosensors
N2 - Nanoparticles are recognized as highly attractive tunable materials for designing field-effect biosensors with enhanced performance. In this work, we present a theoretical model for electrolyte-insulator-semiconductor capacitors (EISCAP) decorated with ligand-stabilized charged gold nanoparticles. The charged AuNPs are taken into account as additional, nanometer-sized local gates. The capacitance-voltage (C–V) curves and constant-capacitance (ConCap) signals of the AuNP-decorated EISCAPs have been simulated. The impact of the AuNP coverage on the shift of the C–V curves and the ConCap signals was also studied experimentally on Al–p-Si–SiO₂ EISCAPs decorated with positively charged aminooctanethiol-capped AuNPs. In addition, the surface of the EISCAPs, modified with AuNPs, was characterized by scanning electron microscopy for different immobilization times of the nanoparticles.
KW - aminooctanethiol
KW - nanoparticle coverage
KW - capacitive model
KW - gold nanoparticles
KW - field-effect sensor
KW - electrolyte-insulator-semiconductor capacitors
Y1 - 2022
U6 - https://doi.org/10.3390/bios12050334
SN - 2079-6374
N1 - This article belongs to the Special Issue "Biosensors in Nanotechnology"
VL - 12
IS - 5
PB - MDPI
CY - Basel
ER -
TY - JOUR
A1 - Poghossian, Arshak
A1 - Ingebrandt, S.
A1 - Offenhäusser, A.
A1 - Schöning, Michael Josef
T1 - Field-effect devices for detecting cellular signals
JF - Seminars in Cell & Developmental Biology. 20 (2009), H. 1
Y1 - 2009
SN - 1096-3634
SP - 41
EP - 48
PB - Elsevier
CY - Amsterdam
ER -
TY - JOUR
A1 - Poghossian, Arshak
A1 - Weil, M. H.
A1 - Bäcker, Matthias
A1 - Mayer, D.
A1 - Schöning, Michael Josef
T1 - Field-effect Devices Functionalised with Gold-Nanoparticle/Macromolecule Hybrids: New Opportunities for a Label-Free Biosensing
JF - Procedia Engineering
N2 - Field-effect capacitive electrolyte-insulator-semiconductor (EIS) sensors functionalised with citrate-capped gold nanoparticles (AuNP) have been used for the electrostatic detection of macromolecules by their intrinsic molecular charge. The EIS sensor detects the charge changes in the AuNP/macromolecule hybrids induced by the adsorption or binding events. A feasibility of the proposed detection scheme has been exemplary demonstrated by realising EIS sensors for the detection of poly-D-lysine molecules.
Y1 - 2012
U6 - https://doi.org/10.1016/j.proeng.2012.09.136
SN - 1877-7058
N1 - Part of special issue "26th European Conference on Solid-State Transducers, EUROSENSOR 2012"
IS - 47
SP - 273
EP - 276
PB - Elsevier
CY - Amsterdam
ER -
TY - JOUR
A1 - Gun, Jenny
A1 - Schöning, Michael Josef
A1 - Abouzar, Maryam H.
A1 - Poghossian, Arshak
A1 - Katz, Evgeny
T1 - Field-Effect Nanoparticle-Based Glucose Sensor on a Chip: Amplification Effect of Coimmobilized Redox Species
JF - Electroanalysis. 20 (2008), H. 16
Y1 - 2008
SN - 1521-4109
SP - 1748
EP - 1753
ER -
TY - JOUR
A1 - Abouzar, Maryam H.
A1 - Ingebrandt, S.
A1 - Poghossian, Arshak
A1 - Zhang, Y.
A1 - Moritz, W.
A1 - Schöning, Michael Josef
T1 - Field-effect nanoplate capacitive pH sensor based on SOI structure
JF - Semiconductor micro- and nanoelectronics : Proceedings of the Seventh International Conference , Tsakhcadzor, Armenia July 3-5 2009
Y1 - 2009
SP - 55
EP - 58
ER -
TY - JOUR
A1 - Yoshinobu, Tatsuo
A1 - Miyamoto, Ko-ichiro
A1 - Wagner, Torsten
A1 - Schöning, Michael Josef
T1 - Field-effect sensors combined with the scanned light pulse technique: from artificial olfactory images to chemical imaging technologies
JF - Chemosensors
N2 - The artificial olfactory image was proposed by Lundström et al. in 1991 as a new strategy for an electronic nose system which generated a two-dimensional mapping to be interpreted as a fingerprint of the detected gas species. The potential distribution generated by the catalytic metals integrated into a semiconductor field-effect structure was read as a photocurrent signal generated by scanning light pulses. The impact of the proposed technology spread beyond gas sensing, inspiring the development of various imaging modalities based on the light addressing of field-effect structures to obtain spatial maps of pH distribution, ions, molecules, and impedance, and these modalities have been applied in both biological and non-biological systems. These light-addressing technologies have been further developed to realize the position control of a faradaic current on the electrode surface for localized electrochemical reactions and amperometric measurements, as well as the actuation of liquids in microfluidic devices.
KW - visualization
KW - light-addressing technologies
KW - scanned light pulse technique
KW - field-effect structure
KW - MOS
KW - metal-oxide-semiconductor structure
KW - catalytic metal
KW - electronic nose
KW - gas sensor
KW - artificial olfactory image
Y1 - 2024
U6 - https://doi.org/10.3390/chemosensors12020020
SN - 2227-9040
N1 - This article belongs to the Special Issue "An Exciting Journey of Chemical Sensors and Biosensors: A Theme Issue in Honor of Professor Ingemar Lundström"
Corresponding author: Tatsuo Yoshinobu, Michael J. Schöning
VL - 12
IS - 2
PB - MDPI
CY - Basel
ER -
TY - JOUR
A1 - Poghossian, Arshak
A1 - Abouzar, Maryam H.
A1 - Sakkari, M.
A1 - Kassab, T.
A1 - Han, Y.
A1 - Ingebrandt, S.
A1 - Offenhäusser, A.
A1 - Schöning, Michael Josef
T1 - Field-effect sensors for monitoring the layer-by-layer adsorption of charged macromolecules
JF - Sensors and Actuators B: Chemical. 118 (2006), H. 1-2
Y1 - 2006
SN - 0925-4005
N1 - Eurosensors XIX - Eurosensors XIX - The 19th European Conference on Solid-State Transducers
SP - 163
EP - 170
ER -
TY - JOUR
A1 - Poghossian, Arshak
A1 - Jablonski, Melanie
A1 - Molinnus, Denise
A1 - Wege, Christina
A1 - Schöning, Michael Josef
T1 - Field-Effect Sensors for Virus Detection: From Ebola to SARS-CoV-2 and Plant Viral Enhancers
JF - Frontiers in Plant Science
N2 - Coronavirus disease 2019 (COVID-19) is a novel human infectious disease provoked by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Currently, no specific vaccines or drugs against COVID-19 are available. Therefore, early diagnosis and treatment are essential in order to slow the virus spread and to contain the disease outbreak. Hence, new diagnostic tests and devices for virus detection in clinical samples that are faster, more accurate and reliable, easier and cost-efficient than existing ones are needed. Due to the small sizes, fast response time, label-free operation without the need for expensive and time-consuming labeling steps, the possibility of real-time and multiplexed measurements, robustness and portability (point-of-care and on-site testing), biosensors based on semiconductor field-effect devices (FEDs) are one of the most attractive platforms for an electrical detection of charged biomolecules and bioparticles by their intrinsic charge. In this review, recent advances and key developments in the field of label-free detection of viruses (including plant viruses) with various types of FEDs are presented. In recent years, however, certain plant viruses have also attracted additional interest for biosensor layouts: Their repetitive protein subunits arranged at nanometric spacing can be employed for coupling functional molecules. If used as adapters on sensor chip surfaces, they allow an efficient immobilization of analyte-specific recognition and detector elements such as antibodies and enzymes at highest surface densities. The display on plant viral bionanoparticles may also lead to long-time stabilization of sensor molecules upon repeated uses and has the potential to increase sensor performance substantially, compared to conventional layouts. This has been demonstrated in different proof-of-concept biosensor devices. Therefore, richly available plant viral particles, non-pathogenic for animals or humans, might gain novel importance if applied in receptor layers of FEDs. These perspectives are explained and discussed with regard to future detection strategies for COVID-19 and related viral diseases.
Y1 - 2020
U6 - https://doi.org/10.3389/fpls.2020.598103
VL - 11
IS - Article 598103
SP - 1
EP - 14
PB - Frontiers
CY - Lausanne
ER -
TY - CHAP
A1 - Poghossian, Arshak
A1 - Ingebrandt, S.
A1 - Platen, J.
A1 - Schöning, Michael Josef
T1 - Field-effect sensors with charged macromolecules – from micro towards nano aspects
T2 - Biochemical Sensing Utilisation of Micro-and Nanotechnologies, Warschau, Nov. 2005 : Lecture Notes of the ICB Seminar / ed.: M. Mascini, W. Torbicz
Y1 - 2006
SP - 74
EP - 81
PB - Polish Academy Sciences Press
CY - Warsaw
ER -
TY - JOUR
A1 - Poghossian, Arshak
A1 - Abouzar, Maryam H.
A1 - Amberger, F.
A1 - Mayer, D.
A1 - Han, Y.
A1 - Ingebrandt, S.
A1 - Offenhäusser, A.
A1 - Schöning, Michael Josef
T1 - Field-effect sensors with charged macromolecules: Characterisation by capacitance–voltage, constant-capacitance, impedance spectroscopy and atomic-force microscopy methods
JF - Biosensors and Bioelectronics. 22 (2007), H. 9-10
Y1 - 2007
SN - 0956-5663
N1 - Selected Papers from the Ninth World Congress On Biosensors. Toronto, Canada 10 - 12 May 2006, Alice X. J . Tang
SP - 2100
EP - 2107
ER -
TY - JOUR
A1 - Werner, Frederik
A1 - Schusser, Sebastian
A1 - Spalthahn, Heiko
A1 - Wagner, Torsten
A1 - Yoshinobu, Tatsuo
A1 - Schöning, Michael Josef
T1 - Field-programmable gate array based controller for multi spot light-addressable potentiometric sensors with integrated signal correction mode
JF - Electrochimica Acta
N2 - A light-addressable potentiometric sensor (LAPS) can measure the concentration of one or several analytes at the sensor surface simultaneously in a spatially resolved manner. A modulated light pointer stimulates the semiconductor structure at the area of interest and a responding photocurrent can be read out. By simultaneous stimulation of several areas with light pointers of different modulation frequencies, the read out can be performed at the same time. With the new proposed controller electronic based on a field-programmable gate array (FPGA), it is possible to control the modulation frequencies, phase shifts, and light brightness of multiple light pointers independently and simultaneously. Thus, it is possible to investigate the frequency response of the sensor, and to examine the analyte concentration by the determination of the surface potential with the help of current/voltage curves and phase/voltage curves. Additionally, the ability to individually change the light intensities of each light pointer is used to perform signal correction.
Y1 - 2011
U6 - https://doi.org/10.1016/j.electacta.2011.03.012
SN - 0013-4686
VL - 56
IS - 26
SP - 9656
EP - 9660
PB - Elsevier
CY - Amsterdam
ER -
TY - JOUR
A1 - Baader, Fabian
A1 - Boxberg, Marc S.
A1 - Chen, Qian
A1 - Förstner, Roger
A1 - Kowalski, Julia
A1 - Dachwald, Bernd
T1 - Field-test performance of an ice-melting probe in a terrestrial analogue environment
JF - Icarus
N2 - Melting probes are a proven tool for the exploration of thick ice layers and clean sampling of subglacial water on Earth. Their compact size and ease of operation also make them a key technology for the future exploration of icy moons in our Solar System, most prominently Europa and Enceladus. For both mission planning and hardware engineering, metrics such as efficiency and expected performance in terms of achievable speed, power requirements, and necessary heating power have to be known.
Theoretical studies aim at describing thermal losses on the one hand, while laboratory experiments and field tests allow an empirical investigation of the true performance on the other hand. To investigate the practical value of a performance model for the operational performance in extraterrestrial environments, we first contrast measured data from terrestrial field tests on temperate and polythermal glaciers with results from basic heat loss models and a melt trajectory model. For this purpose, we propose conventions for the determination of two different efficiencies that can be applied to both measured data and models. One definition of efficiency is related to the melting head only, while the other definition considers the melting probe as a whole. We also present methods to combine several sources of heat loss for probes with a circular cross-section, and to translate the geometry of probes with a non-circular cross-section to analyse them in the same way. The models were selected in a way that minimizes the need to make assumptions about unknown parameters of the probe or the ice environment.
The results indicate that currently used models do not yet reliably reproduce the performance of a probe under realistic conditions. Melting velocities and efficiencies are constantly overestimated by 15 to 50 % in the models, but qualitatively agree with the field test data. Hence, losses are observed, that are not yet covered and quantified by the available loss models. We find that the deviation increases with decreasing ice temperature. We suspect that this mismatch is mainly due to the too restrictive idealization of the probe model and the fact that the probe was not operated in an efficiency-optimized manner during the field tests. With respect to space mission engineering, we find that performance and efficiency models must be used with caution in unknown ice environments, as various ice parameters have a significant effect on the melting process. Some of these are difficult to estimate from afar.
Y1 - 2023
U6 - https://doi.org/10.1016/j.icarus.2023.115852
N1 - Forschungsdaten hierzu: "Performance data of an ice-melting probe from field tests in two different ice environments" (https://opus.bibliothek.fh-aachen.de/opus4/frontdoor/index/index/docId/10890)
IS - 409
PB - Elsevier
CY - Amsterdam
ER -
TY - JOUR
A1 - Jacobs, Stephan
A1 - Gebhardt, Michael
A1 - Kethers, Stefanie
A1 - Rzasa, Wojtek
T1 - Filling HTML forms simultaneously: CoWeb — architecture and functionality
JF - Computer Networks and ISDN Systems. Vol. 30 (1996), H. Issues 1-7
Y1 - 1996
SN - 0376-5075
SP - 1385
EP - 1395
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 - JOUR
A1 - Mackenstein, Hans
A1 - Jeffery, Charlie
T1 - Financial equalization in the 1990s : on the road back to Karlsruhe / Hans Mackenstein and Charlie Jeffery
JF - Recasting German federalism : the legacies of unification
Y1 - 1999
SN - 1-85567-579-x
SP - 155
EP - 176
PB - Pinter
CY - London
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 -
TY - CHAP
A1 - Leise, Philipp
A1 - Altherr, Lena
A1 - Simon, Nicolai
A1 - Pelz, Peter F.
T1 - Finding global-optimal gearbox designs for battery electric vehicles
T2 - Optimization of complex systems - theory, models, algorithms and applications : WCGO 2019
N2 - In order to maximize the possible travel distance of battery electric vehicles with one battery charge, it is mandatory to adjust all components of the powertrain carefully to each other. While current vehicle designs mostly simplify the powertrain rigorously and use an electric motor in combination with a gearbox with only one fixed transmission ratio, the use of multi-gear systems has great potential. First, a multi-speed system is able to improve the overall energy efficiency. Secondly, it is able to reduce the maximum momentum and therefore to reduce the maximum current provided by the traction battery, which results in a longer battery lifetime. In this paper, we present a systematic way to generate multi-gear gearbox designs that—combined with a certain electric motor—lead to the most efficient fulfillment of predefined load scenarios and are at the same time robust to uncertainties in the load. Therefore, we model the electric motor and the gearbox within a Mixed-Integer Nonlinear Program, and optimize the efficiency of the mechanical parts of the powertrain. By combining this mathematical optimization program with an unsupervised machine learning algorithm, we are able to derive global-optimal gearbox designs for practically relevant momentum and speed requirements.
KW - Powertrain
KW - Gearbox
KW - Optimization
KW - BEV
KW - WLTP
Y1 - 2019
SN - 978-3-030-21802-7
U6 - https://doi.org/10.1007/978-3-030-21803-4_91
SP - 916
EP - 925
PB - Springer
CY - Cham
ER -
TY - CHAP
A1 - Bensberg, Frank
A1 - Auth, Gunnar
A1 - Czarnecki, Christian
ED - Czarnecki, Christian
ED - Fettke, Peter
T1 - Finding the perfect RPA match : a criteria-based selection method for RPA solutions
T2 - Robotic process automation : Management, technology, applications
N2 - The benefits of robotic process automation (RPA) are highly related to the usage of commercial off-the-shelf (COTS) software products that can be easily implemented and customized by business units. But, how to find the best fitting RPA product for a specific situation that creates the expected benefits? This question is related to the general area of software evaluation and selection. In the face of more than 75 RPA products currently on the market, guidance considering those specifics is required. Therefore, this chapter proposes a criteria-based selection method specifically for RPA. The method includes a quantitative evaluation of costs and benefits as well as a qualitative utility analysis based on functional criteria. By using the visualization of financial implications (VOFI) method, an application-oriented structure is provided that opposes the total cost of ownership to the time savings times salary (TSTS). For the utility analysis a detailed list of functional criteria for RPA is offered. The whole method is based on a multi-vocal review of scientific and non-scholarly literature including publications by business practitioners, consultants, and vendors. The application of the method is illustrated by a concrete RPA example. The illustrated
structures, templates, and criteria can be directly utilized by practitioners in their real-life RPA implementations. In addition, a normative decision process for selecting RPA alternatives is proposed before the chapter closes with a discussion and outlook.
KW - robotic process automation
KW - business process automation
KW - commercial offthe- shelf solutions
KW - software evaluation
KW - software selection
Y1 - 2021
SN - 978-3-11-067677-8
SN - 978-3-11-067669-3
SN - 9783110676686
U6 - https://doi.org/10.1515/9783110676693-201
SP - 47
EP - 75
PB - De Gruyter
CY - Oldenbourg
ER -
TY - JOUR
A1 - Vitusevich, S. A.
A1 - Förster, Arnold
A1 - Reetz, W.
A1 - Lüth, H.
A1 - Belyaev, A. E.
A1 - Danylyuk, S. V.
T1 - Fine structure of photoresponse spectra in a double-barrier resonant tunnelling diode
JF - Nanotechnology. 11 (2000), H. 4
Y1 - 2000
SN - 1361-6528
SP - 305
EP - 308
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 - Kilic, S. A.
A1 - Raatschen, Hans-Jürgen
A1 - Astaneh-Asl, A.
A1 - Apaydin, N. M.
T1 - Finite element modeling of the Fatih Sultan Mehmet Suspension Bridge
T2 - Multi-Span Large Bridges - Proceedings of the International Conference on Multi-Span Large Bridges
Y1 - 2015
SN - 9781138027572
SP - 1169
EP - 1173
PB - CRC Press
CY - Leiden
ER -
TY - JOUR
A1 - Novacek, V.
A1 - Tran, Thanh Ngoc
A1 - Klinge, U.
A1 - Tolba, R. H.
A1 - Staat, Manfred
A1 - Bronson, D. G.
A1 - Miesse, A. M.
A1 - Whiffen, J.
A1 - Turquier, F.
T1 - Finite element modelling of stapled colorectal end-to-end anastomosis : Advantages of variable height stapler design
JF - Journal of Biomechanics
N2 - The impact of surgical staplers on tissues has been studied mostly in an empirical manner. In this paper, finite element method was used to clarify the mechanics of tissue stapling and associated phenomena. Various stapling modalities and several designs of circular staplers were investigated to evaluate the impact of the device on tissues and mechanical performance of the end-to-end colorectal anastomosis. Numerical simulations demonstrated that a single row of staples is not adequate to resist leakage due to non-linear buckling and opening of the tissue layers between two adjacent staples. Compared to the single staple row configuration, significant increase in stress experienced by the tissue at the inner staple rows was observed in two and three rows designs. On the other hand, adding second and/or third staple row had no effect on strain in the tissue inside the staples. Variable height design with higher staples in outer rows significantly reduced the stresses and strains in outer rows when compared to the same configuration with flat cartridge.
KW - Variable height stapler design
KW - Anastomotic leakage
KW - Finite element modelling
KW - End-to-end colorectal anastomosis
KW - Surgical staplers
Y1 - 2012
U6 - https://doi.org/10.1016/j.jbiomech.2012.07.021
SN - 1873-2380
VL - 45
IS - 115
SP - 2693
EP - 2697
PB - Elsevier
CY - Amsterdam
ER -
TY - JOUR
A1 - Höttges, Jörg
A1 - Feldhaus, R.
A1 - Brockhaus, T.
A1 - Rouvé, Gerhard
T1 - Finite Element Simulation of Flow and Pollution Transport applied to a Part of the River Rhine / Feldhaus, R.; J. Höttges, T. Brockhaus; G. Rouvé
JF - Hydraulic and environmental modelling : proceedings of the Second International Conference on Hydraulic and Environmental Modelling of Coastal, Estuarine, and River Waters / [IAHR-AIRH]. Ed. by R. A. Falconer
Y1 - 1992
N1 - International Conference on Hydraulic and Environmental Modelling of Coastal, Estuarine, and River Waters ; (2, 1992, Bradford)
PB - Ashgate
CY - Aldershot, Hants, UK [u.a.]
ER -
TY - JOUR
A1 - Prume, Klaus
A1 - Franken, Klaus
A1 - Maier, Horst R.
A1 - Waser, Rainer
T1 - Finite-Element Analysis of Ceramic Multilayer Capacitors: Failure Probability Caused by Wave Soldering and Bending Loads / Franken, Klaus ; Maier, Horst R. ; Prume, Klaus ; Waser, Rainer
JF - Journal of the American Ceramic Society. 83 (2000), H. 6
Y1 - 2000
SN - 0002-7820
SP - 1433
EP - 1440
ER -
TY - JOUR
A1 - Prume, Klaus
A1 - Waser, Rainer
A1 - Franken, Klaus
A1 - Maier, Horst R.
T1 - Finite-Element Analysis of Ceramic Multilayer Capacitors: Modeling and Electrical Impedance Spectroscopy for a Nondestructive Failure Test / Prume, Klaus ; Waser, Rainer ; Franken, Klaus ; Maier, Horst R. ;
JF - Journal of the American Ceramic Society. 83 (2000), H. 5
Y1 - 2000
SN - 0002-7820
SP - 1153
EP - 1159
ER -
TY - JOUR
A1 - Prume, Klaus
A1 - Waser, Rainer
T1 - Finite-element simulation of coupled characteristics of ceramic multilayer capacitors under transient electrical loading / Prume, Klaus ; Waser, Rainer
JF - Proceedings of the 2000 12th IEEE International Symposium on Applications of Ferroelectrics. Vol. 2
Y1 - 2000
N1 - ISAF 2000. Proceedings of the 2000 12th IEEE International Symposium on Applications of Ferroelectrics
SP - 675
EP - 678
ER -
TY - JOUR
A1 - Janz, Norbert
A1 - Lööf, Hans
A1 - Peters, Bettina
T1 - Firm Level Innovation and Productivity, Is there a Common Story Across Countries?
JF - Problems and Perspectives in Management (2004)
Y1 - 2004
SN - ISSN 1727-7051
N1 - online download: http://businessperspectives.org/files/ppm/PPM_EN_2004_02_Janz.pdf
SP - 184
EP - 204
ER -
TY - BOOK
A1 - Janz, Norbert
A1 - Lööf, Hans
A1 - Peters, Bettina
T1 - Firm Level Innovation and Productivity, Is there a Common Story Across Countries?
Y1 - 2003
SN - ISSN 1727-7051
N1 - ZEW Diskussion Paper. No 03-26 Online : ftp://ftp.zew.de/pub/zew-docs/dp/dp0326.pdf
PB - Zentrum für Europäische Wirtschaftsforschung ZEW
CY - Mannheim
ER -
TY - CHAP
A1 - Martin, S.
A1 - Berg, G.
A1 - Hardt, Arno
A1 - Hürlimann, W.
A1 - Köhler, M.
A1 - Meißberger, J.
A1 - Sagefka, T.
A1 - Schult, O. W. B.
ED - Sanderson, N. E.
T1 - First experience with the magnet spectrometer 'BIG KARL'
T2 - Use of magnetic spectrometers in nuclear physics : proceedings of the Daresbury study weekend 10 - 11 March 1979
Y1 - 1979
SP - 38
EP - 42
PB - Daresbury Lab.
CY - Daresbury
ER -
TY - JOUR
A1 - Müller-Veggian, Mattea
A1 - Cesari, V.
A1 - De Nardo, L.
A1 - Colautti, P.
T1 - First microdosimetric measurements down to 25nm
JF - Annual report / Istituto Nazionale di Fisica Nucleare, LNL, Laboratori Nazionali di Legnaro. 2000 (2001)
Y1 - 2001
SN - 88-7337-000-4
N1 - LNL-INFN(REP)-178/2001
SP - 82
ER -
TY - JOUR
A1 - Müller-Veggian, Mattea
A1 - Cesari, V.
A1 - De Nardo, L.
A1 - Colautti, P.
T1 - First microdosimetric measurements with a 10b-loaded TEPC
JF - Annual report / Istituto Nazionale di Fisica Nucleare, LNL, Laboratori Nazionali di Legnaro. 2001 (2002)
Y1 - 2002
SN - 88-7337-002-0
N1 - LNL-INFN(REP)-182/2002
SP - 110
EP - 111
ER -
TY - JOUR
A1 - Hoyler, Friedrich
A1 - Bauske, I.
A1 - Arias, J. M.
T1 - First observation of scissors mode states in an odd-mass nucleus / I. Bauske ; J. M. Arias ... F. Hoyler ...
JF - Physical review letters. 71 (1993), H. 7
Y1 - 1993
SN - 0031-9007
SP - 975
EP - 978
ER -
TY - JOUR
A1 - Heuermann, Holger
A1 - Harzheim, Thomas
A1 - Cronenbroeck, Tobias
T1 - First SIMO harmonic radar based on the SFCW concept and the HR transfer function
JF - Remote sensing
N2 - This paper presents a new SIMO radar system based on a harmonic radar (HR) stepped frequency continuous wave (SFCW) architecture. Simple tags that can be electronically individually activated and deactivated via a DC control voltage were developed and combined to form an MO array field. This HR operates in the entire 2.45 GHz ISM band for transmitting the illumination signal and receives at twice the stimulus frequency and bandwidth centered around 4.9 GHz. This paper presents the development, the basic theory of a HR system for the characterization of objects placed into the propagation path in-between the radar and the reflectors (similar to a free-space measurement with a network analyzer) as well as first measurements performed by the system. Further detailed measurement series will be made available later on to other researchers to develop AI and machine learning based signal processing routines or synthetic aperture radar algorithms for imaging, object recognition, and feature extraction. For this purpose, the necessary information is published in this paper. It is explained in detail why this SIMO-HR can be an attractive solution augmenting or replacing existing systems for radar measurements in production technology for material under test measurements and as a simplified MIMO system. The novel HR transfer function, which is a basis for researchers and developers for material characterization or imaging algorithms, is introduced and metrologically verified in a well traceable coaxial setup.
KW - MUT measurement; scanner
KW - transponder
KW - SFCW
KW - harmonic radar
KW - nonlinear radar
Y1 - 2021
U6 - https://doi.org/10.3390/rs13245088
SN - 2072-4292
N1 - This article belongs to the Special Issue "Nonlinear Junction Detection and Harmonic Radar"
VL - 13
IS - 24
PB - MDPI
CY - Basel
ER -
TY - JOUR
A1 - Göttsche, Joachim
A1 - Hoffschmidt, Bernhard
A1 - Alexopoulos, Spiros
A1 - Funke, J.
A1 - Schwarzbözl, P.
T1 - First Simulation Results for the Hybridization of Small Solar Power Tower Plants
JF - EuroSun 2008 : 1st International Conference on Solar Heating, Cooling and Buildings, 2008-10-07 - 2008-10-10, Lissabon (Portugal). Vol. 1
Y1 - 2008
SN - 978-1-61782-228-5
N1 - Kurzfassung unter http://elib.dlr.de/56357/
SP - 1299
EP - 1306
PB - Sociedade Portuguesa De Energia Solar (SPES)
CY - Lisbon
ER -
TY - JOUR
A1 - Umutlu, L.
A1 - Maderwald, S.
A1 - Kinner, S.
A1 - Kraff, O.
A1 - Bitz, Andreas
A1 - Orzada, S.
A1 - Johst, S.
A1 - Wrede, K.
A1 - Forsting, M.
A1 - Ladd, M. E.
A1 - Lauenstein, T. C.
A1 - Quick, H. H.
T1 - First-pass contrast-enhanced renal MRA at 7 Tesla: initial results
JF - European Radiology
Y1 - 2013
U6 - https://doi.org/10.1007/s00330-012-2666-0
SN - 1432-1084
VL - 23
IS - 4
SP - 1059
EP - 1066
PB - Springer
CY - Berlin
ER -