TY - CHAP A1 - Jacobs, Stephan ED - Bleek, Wolf-Gideon T1 - Towards integration driven design : experience report T2 - Software Engineering 2007 : Beiträge zu den Workshops ; Fachtagung des GI-Fachbereichs Softwaretechnik ; 27. - 30.03.2007 in Hamburg. - (GI-Edition : Proceedings ; 106) Y1 - 2007 SN - 978-3-88579-200-0 SP - 143 EP - 150 PB - Ges. für Informatik CY - Bonn ER - TY - JOUR A1 - Schöning, Michael Josef A1 - Abouzar, Maryam H. A1 - Ingebrandt, Sven A1 - Platen, Johannes A1 - Offenhäusser, Andreas A1 - Poghossian, Arshak ED - Comini, Elisabetta T1 - Towards label-free detection of charged macromolecules using field-effect-based structures : Scaling down from capacitive EIS sensor over ISFET to nano-scale devices JF - Nanostructured materials and hybrid composites for gas sensors and biomedical applications : symposium held April 18-20, 2006, San Francisco , California, U.S.A. Y1 - 2006 SN - 9781558998711 IS - paper 0915-R05-04 SP - 89 EP - 94 ER - TY - JOUR A1 - Breuer, Lars A1 - Pilas, Johanna A1 - Guthmann, Eric A1 - Schöning, Michael Josef A1 - Thoelen, Ronald A1 - Wagner, Torsten T1 - Towards light-addressable flow control: responsive hydrogels with incorporated graphene oxide as laser-driven actuator structures within microfluidic channels JF - Sensor and Actuators B: Chemical Y1 - 2019 U6 - https://doi.org/10.1016/j.snb.2019.02.086 SN - 0925-4005 VL - 288 SP - 579 EP - 585 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Welden, Melanie A1 - Poghossian, Arshak A1 - Vahidpour, Farnoosh A1 - Wendlandt, Tim A1 - Keusgen, Michael A1 - Wege, Christina A1 - Schöning, Michael Josef T1 - Towards multi-analyte detection with field-effect capacitors modified with tobacco mosaic virus bioparticles as enzyme nanocarriers JF - Biosensors N2 - Utilizing an appropriate enzyme immobilization strategy is crucial for designing enzyme-based biosensors. Plant virus-like particles represent ideal nanoscaffolds for an extremely dense and precise immobilization of enzymes, due to their regular shape, high surface-to-volume ratio and high density of surface binding sites. In the present work, tobacco mosaic virus (TMV) particles were applied for the co-immobilization of penicillinase and urease onto the gate surface of a field-effect electrolyte-insulator-semiconductor capacitor (EISCAP) with a p-Si-SiO₂-Ta₂O₅ layer structure for the sequential detection of penicillin and urea. The TMV-assisted bi-enzyme EISCAP biosensor exhibited a high urea and penicillin sensitivity of 54 and 85 mV/dec, respectively, in the concentration range of 0.1–3 mM. For comparison, the characteristics of single-enzyme EISCAP biosensors modified with TMV particles immobilized with either penicillinase or urease were also investigated. The surface morphology of the TMV-modified Ta₂O₅-gate was analyzed by scanning electron microscopy. Additionally, the bi-enzyme EISCAP was applied to mimic an XOR (Exclusive OR) enzyme logic gate. KW - urease KW - enzyme-logic gate KW - bi-enzyme biosensor KW - capacitive field-effect sensor KW - tobacco mosaic virus (TMV) KW - penicillinase Y1 - 2022 U6 - https://doi.org/10.3390/bios12010043 SN - 2079-6374 N1 - This article belongs to the Special Issue "Biosensors: 10th Anniversary Feature Papers" VL - 12 IS - 1 PB - MDPI CY - Basel ER - TY - CHAP A1 - Priede, Gareth A1 - Ferrein, Alexander T1 - Towards passive walking for the fully-actuated biped robot Nao T2 - Emerging trends in computing, informatics, systems sciences, and engineering. (Lecture notes in electrical engineering : vol. 151) N2 - Many biped robots deploy a form of gait that follows the zero moment point (ZMP) approach, that is, the robot is in a stable position at any point in time. This requires the robot to be fully actuated. While very stable, the draw-backs of this approach are a fairly slow gait and high energy consumption. An alternative approach is the so-called passive-dynamic walking, where the gait makes use of the inertia and dynamic stability of the robot. In this paper we describe our ongoing work of combining the principles of passive-dynamic walking on the fully-actuated biped robot Nao, which is also deployed for robotic soccer applications. We present a simple controller that allows the robot to stably rock sidewards, showing a closed limit-cycle. We discuss first results of superimposing a forward motion on the sidewards motion. Based on this we expect to endow the Nao with a fast, robust, and stable passive-dynamic walk on the fully-actuated Nao in the future. Y1 - 2013 SN - 978-1-4614-3557-0 ; 978-1-4614-3558-7 U6 - https://doi.org/10.1007/978-1-4614-3558-7_18 SP - 225 EP - 236 PB - Springer CY - New York, NY ER - TY - CHAP A1 - Frotscher, Ralf A1 - Staat, Manfred ED - Artmann, Gerhard ED - Temiz Artmann, Aysegül ED - Zhubanova, Azhar A. ED - Digel, Ilya T1 - Towards Patient-Specific Computational Modeling of hiPS-Derived Cardiomyocyte Function and Drug Action T2 - Biological, Physical and Technical Basics of Cell Engineering N2 - Human-induced pluripotent stem cell-derived cardiomyocytes (hiPS-CM) today are widely used for the investigation of normal electromechanical cardiac function, of cardiac medication and of mutations. Computational models are thus established that simulate the behavior of this kind of cells. This section first motivates the modeling of hiPS-CM and then presents and discusses several modeling approaches of microscopic and macroscopic constituents of human-induced pluripotent stem cell-derived and mature human cardiac tissue. The focus is led on the mapping of the computational results one can achieve with these models onto mature human cardiomyocyte models, the latter being the real matter of interest. Model adaptivity is the key feature that is discussed because it opens the way for modeling various biological effects like biological variability, medication, mutation and phenotypical expression. We compare the computational with experimental results with respect to normal cardiac function and with respect to inotropic and chronotropic drug effects. The section closes with a discussion on the status quo of the specificity of computational models and on what challenges have to be solved to reach patient-specificity. Y1 - 2018 SN - 978-981-10-7904-7 U6 - https://doi.org/10.1007/978-981-10-7904-7_10 SP - 233 EP - 250 PB - Springer CY - Singapore ER - TY - JOUR A1 - Kramer, Matthias A1 - Valero, Daniel A1 - Chanson, Hubert A1 - Bung, Daniel Bernhard T1 - Towards reliable turbulence estimations with phase-detection probes: an adaptive window cross-correlation technique JF - Experiments in Fluids Y1 - 2019 U6 - https://doi.org/10.1007/s00348-018-2650-9 SN - 1432-1114 VL - 60 EP - Article number 2 PB - Springer CY - Berlin ER - TY - JOUR A1 - Poghossian, Arshak A1 - Platen, J. A1 - Schöning, Michael Josef T1 - Towards self-aligned nanostructures by means of layerexpansion technique JF - Electrochimica Acta. 51 (2005), H. 5 Y1 - 2005 SN - 0013-4686 SP - 838 EP - 843 ER - TY - JOUR A1 - Behbahani, Mehdi A1 - Behr, Marek A1 - Nicolai, Mike A1 - Probst, Markus T1 - Towards Shape Optimization for Ventricular Assist Devices Using Parallel Stabilized FEM JF - NIC Symposium 2008 : symposium, 20 - 21 February 2008, Forschungszentrum Jülich ; proceedings / organized by John von Neumann Institute for Computing. Ed. by Gernot Münster; Dietrich Wolf; Manfred Kremer (ed.) Y1 - 2008 SN - 978-3-9810843-5-1 N1 - NIC series ; 39 SP - 325 EP - 332 PB - Forschungszentrum CY - Jülich ER - TY - CHAP A1 - Lüpfert, E. A1 - Herrmann, Ulf A1 - Price, Henry A1 - Zarza, E. A1 - Kistener, R. ED - Ramos, C. T1 - Towards Standard Performance Analysis for Parabolic Trough Collector Fields T2 - 12th International Symposium Solar Power and Chemical Energy Systems, October 6-8, 2004, Oaxaca Mexico ; SolarPACES International Symposium, 12 Y1 - 2004 SN - 968-6114-18-1 PB - Instituto de Investigaciones Electricas CY - [s.l.] ER - TY - GEN A1 - Waiczies, Helmar A1 - Kühne, André A1 - Winter, Lukas A1 - Frauenrath, Tobias A1 - Hoffmann, Werner A1 - Ittermann, Bernd A1 - Waiczies, Sonia A1 - Niendorf, Thoralf T1 - Towards theranostics of rheumatoid arthritis: 1H/19F imaging of non-steroidal anti-inflammatory drugs in hand and wrist at 7 Tesla T2 - 2013 ISMRM Annual Meeting Proceedings N2 - We have developed a double-tuned ¹H/¹⁹F birdcage resonator dedicated for hand and wrist imaging at 7 T to locally image non-steroidal anti-inflammatory drugs (NSAID) such as 2-{[3-(Trifluoromethyl) phenyl]amino}benzoic acid. The preliminary in vivo images acquired by the double-tuned ¹H/¹⁹F birdcage resonator demonstrate the feasibility for ¹H/¹⁹F hand- and wrist-imaging at 7 T. While the diagnostic quality of the coil needs to be assessed in patients with inflammatory rheumatoid disease, first ¹⁹F images of the NSAID are encouraging, and point towards the prospect of applying ¹⁹F-MRI to visualize and quantify the concentration of therapeutically-active compound at the sites of inflammation. Y1 - 2013 SN - 1545-4428 N1 - ISMRM 21st Annual Meeting & Exhibition, 20-26 April 2013, Salt Lake City, Utah, USA ER - TY - CHAP A1 - Burgeth, Bernhard A1 - Kleefeld, Andreas A1 - Zhang, Eugene A1 - Zhang, Yue ED - Baudrier, Étienne ED - Naegel, Benoît ED - Krähenbühl, Adrien ED - Tajine, Mohamed T1 - Towards Topological Analysis of Non-symmetric Tensor Fields via Complexification T2 - Discrete Geometry and Mathematical Morphology N2 - Fields of asymmetric tensors play an important role in many applications such as medical imaging (diffusion tensor magnetic resonance imaging), physics, and civil engineering (for example Cauchy-Green-deformation tensor, strain tensor with local rotations, etc.). However, such asymmetric tensors are usually symmetrized and then further processed. Using this procedure results in a loss of information. A new method for the processing of asymmetric tensor fields is proposed restricting our attention to tensors of second-order given by a 2x2 array or matrix with real entries. This is achieved by a transformation resulting in Hermitian matrices that have an eigendecomposition similar to symmetric matrices. With this new idea numerical results for real-world data arising from a deformation of an object by external forces are given. It is shown that the asymmetric part indeed contains valuable information. Y1 - 2022 SN - 978-3-031-19897-7 U6 - https://doi.org/10.1007/978-3-031-19897-7_5 N1 - Second International Joint Conference, DGMM 2022, Strasbourg, France, October 24–27, 2022 N1 - Corresponding author: Andreas Kleefeld SP - 48 EP - 59 PB - Springer CY - Cham ER - TY - JOUR A1 - Raab, Monika A1 - Kappel, Sven A1 - Krämer, Andrea A1 - Sanhaji, Mourad A1 - Matthess, Yves A1 - Kurunci-Csacsko, Elisabeth A1 - Calzada-Wack, Julia A1 - Rathkolb, Birgit A1 - Rosman, Jan A1 - Adler, Thure A1 - Busch, Dirk H. A1 - Esposito, Irene A1 - Fuchs, Helmut A1 - Gailus-Durner, Valérie A1 - Klingenspor, Martin A1 - Wolf, Eckhard A1 - Sänger, Nicole A1 - Prinz, Florian A1 - Hrabe de Angelis, Martin A1 - Seibler, Jost A1 - Yuan, Juping A1 - Bergmann, Martin A1 - Knecht, Rainald A1 - Kreft, Bertolt A1 - Strebhardt, Klaus T1 - Toxicity modelling of Plk1-targeted therapies in genetically engineered mice and cultured primary mammalian cells JF - Nature Communications Y1 - 2011 U6 - https://doi.org/10.1038/ncomms1395 SN - 2041-1723 VL - 2 IS - 395 SP - 1 EP - 11 PB - Nature CY - London ER - TY - JOUR A1 - Glück, O. A1 - Schöning, Michael Josef A1 - Lüth, H. A1 - Otto, A. A1 - Emons, H. T1 - Trace metal determination by dc resistance changes of microstructured thin gold film electrodes JF - Electrochimica Acta. 44 (1999), H. 21-22 Y1 - 1999 SN - 0013-4686 SP - 3761 EP - 3768 ER - TY - JOUR A1 - Glück, O. A1 - Schöning, Michael Josef A1 - Lüth, H. A1 - Emons, H. A1 - Hanewinkel, C. A1 - Schumacher, D. A1 - Otto, A. T1 - Trace metal determination with gold microelectrodes fabricated by silicon technology JF - Proceedings of the 11th European Conference on Solid-State Transducers / Eurosensors XI, September 21 - 24, 1997, Warsaw, Poland. [Organised by] Warsaw University of Technology. Vol 2. Y1 - 1997 SN - 83-908335-0-6 N1 - Eurosensors ; (11, 1997, Warszawa) ; Eurosensors - European Conference on Solid-State Transducers ; (11 : ; 1997.09.21-24 : ; Warsaw) SP - 615 EP - 618 PB - Sensor Lab Sp. CY - Warsaw ER - TY - JOUR A1 - Gun, Jenny A1 - Gutkin, Vitaly A1 - Lev, Ovadia A1 - Boyen, Hans-Gerd A1 - Saitner, Marc A1 - Wagner, Patrick A1 - Olieslaeger, Marc D´ A1 - Abouzar, Maryam H. A1 - Poghossian, Arshak A1 - Schöning, Michael Josef T1 - Tracing gold nanoparticle charge by electrolyte-insulator-semiconductor devices JF - Journal of Physical Chemistry C. 115 (2011), H. 11 Y1 - 2011 SN - 1932-7455 SP - 4439 EP - 4445 PB - American Cemical Society CY - Washington, DC ER - TY - JOUR A1 - Becht, Alexander A1 - Schollmayer, Curd A1 - Monakhova, Yulia A1 - Holzgrabe, Ulrike T1 - Tracing the origin of paracetamol tablets by near-infrared, mid-infrared, and nuclear magnetic resonance spectroscopy using principal component analysis and linear discriminant analysis JF - Analytical and Bioanalytical Chemistry N2 - Most drugs are no longer produced in their own countries by the pharmaceutical companies, but by contract manufacturers or at manufacturing sites in countries that can produce more cheaply. This not only makes it difficult to trace them back but also leaves room for criminal organizations to fake them unnoticed. For these reasons, it is becoming increasingly difficult to determine the exact origin of drugs. The goal of this work was to investigate how exactly this is possible by using different spectroscopic methods like nuclear magnetic resonance and near- and mid-infrared spectroscopy in combination with multivariate data analysis. As an example, 56 out of 64 different paracetamol preparations, collected from 19 countries around the world, were chosen to investigate whether it is possible to determine the pharmaceutical company, manufacturing site, or country of origin. By means of suitable pre-processing of the spectra and the different information contained in each method, principal component analysis was able to evaluate manufacturing relationships between individual companies and to differentiate between production sites or formulations. Linear discriminant analysis showed different results depending on the spectral method and purpose. For all spectroscopic methods, it was found that the classification of the preparations to their manufacturer achieves better results than the classification to their pharmaceutical company. The best results were obtained with nuclear magnetic resonance and near-infrared data, with 94.6%/99.6% and 98.7/100% of the spectra of the preparations correctly assigned to their pharmaceutical company or manufacturer. KW - IR KW - Manufacturer KW - Linear discriminant analysis KW - Principal component analysis Y1 - 2021 U6 - https://doi.org/10.1007/s00216-021-03249-z SN - 1618-2650 VL - 413 SP - 3107 EP - 3118 PB - Springer Nature ER - TY - JOUR A1 - Sander, Volker A1 - Fidler, Markus A1 - Klimala, Wojciech T1 - Traffic shaping in aggregate-based networks: implementation and analysis / Fidler, Markus ; Sander, Volker ; Klimala, Wojciech JF - Computer Communications. 28 (2005), H. 3 Y1 - 2005 SN - 0140-3664 SP - 274 EP - 286 ER - TY - CHAP A1 - Steuer-Dankert, Linda T1 - Training future skills - sustainability, interculturality & innovation in a digital design thinking format T2 - Proceedings of the 19th International CDIO Conference N2 - The complex questions of today for a world of tomorrow are characterized by their global impact. Solutions must therefore not only be sustainable in the sense of the three pillars of sustainability (economic, environmental, and social) but must also function globally. This goes hand in hand with the need for intercultural acceptance of developed services and products. To achieve this, engineers, as the problem solvers of the future, must be able to work in intercultural teams on appropriate solutions, and be sensitive to intercultural perspectives. To equip the engineers of the future with the so-called future skills, teaching concepts are needed in which students can acquire these methods and competencies in application-oriented formats. The presented course "Applying Design Thinking - Sustainability, Innovation and Interculturality" was developed to teach future skills from the competency areas Digital Key Competencies, Classical Competencies and Transformative Competencies. The CDIO Standard 3.0, in particular the standards 5, 6, 7 and 8, was used as a guideline. The course aims to prepare engineering students from different disciplines and cultures for their future work in an international environment by combining a digital teaching format with an interdisciplinary, transdisciplinary and intercultural setting for solving sustainability challenges. The innovative moment lies in the digital application of design thinking and the inclusion of intercultural as well as trans- and interdisciplinary perspectives in innovation development processes. In this paper, the concept of the course will be presented in detail and the particularities of a digital implementation of design thinking will be addressed. Subsequently, the potentials and challenges will be reflected and practical advice for integrating design thinking in engineering education will be given. KW - Design Thinking KW - Sustainability KW - Future Skills KW - Interculturality KW - Interdisciplinarity Y1 - 2023 N1 - 19th International CDIO Conference, hosted by NTNU, Trondheim, Norway, June 26-29, 2023 ER - TY - CHAP A1 - Kob, Malte A1 - Gömmel, Andreas A1 - Butenweg, Christoph A1 - Niendorf, Thoralf T1 - Training of a combined model of larynx and vocal folds with data from MRI measurements T2 - The 5th International Conference on Voice Physiology and Biomechanics: Variations across Cultures and Species, July 12-14, 2006, Tokyo, Japan. Proceedings Y1 - 2006 SP - 45 EP - 46 ER - TY - JOUR A1 - Werkhausen, Amelie A1 - Cronin, Neil J. A1 - Albracht, Kirsten A1 - Paulsen, Gøran A1 - Larsen, Askild V. A1 - Bojsen-Møller, Jens A1 - Seynnes, Olivier R. T1 - Training-induced increase in Achilles tendon stiffness affects tendon strain pattern during running JF - PeerJ N2 - Background During the stance phase of running, the elasticity of the Achilles tendon enables the utilisation of elastic energy and allows beneficial contractile conditions for the triceps surae muscles. However, the effect of changes in tendon mechanical properties induced by chronic loading is still poorly understood. We tested the hypothesis that a training-induced increase in Achilles tendon stiffness would result in reduced tendon strain during the stance phase of running, which would reduce fascicle strains in the triceps surae muscles, particularly in the mono-articular soleus. Methods Eleven subjects were assigned to a training group performing isometric singleleg plantarflexion contractions three times per week for ten weeks, and another ten subjects formed a control group. Before and after the training period, Achilles tendon stiffness was estimated, and muscle-tendon mechanics were assessed during running at preferred speed using ultrasonography, kinematics and kinetics. Results Achilles tendon stiffness increased by 18% (P <0:01) in the training group, but the associated reduction in strain seen during isometric contractions was not statistically significant. Tendon elongation during the stance phase of running was similar after training, but tendon recoil was reduced by 30% (P <0:01), while estimated tendon force remained unchanged. Neither gastrocnemius medialis nor soleus fascicle shortening during stance was affected by training. Discussion These results show that a training-induced increase in Achilles tendon stiffness altered tendon behaviour during running. Despite training-induced changes in tendon mechanical properties and recoil behaviour, the data suggest that fascicle shortening patterns were preserved for the running speed that we examined. The asymmetrical changes in tendon strain patterns supports the notion that simple inseries models do not fully explain the mechanical output of the muscle-tendon unit during a complex task like running. KW - Achilles tendon KW - Stiffness KW - Running KW - Tendon properties KW - Architectural gear ratio Y1 - 2019 U6 - https://doi.org/10.7717/peerj.6764 SN - 21678359 PB - Peer CY - London ER - TY - JOUR A1 - Feichtinger, Linda M. A1 - Eilmann, Britta A1 - Buchmann, Nina A1 - Rigling, Andreas T1 - Trait-specific responses of Scots pine to irrigation on a short vs long time scale JF - Tree Physiology Y1 - 2015 U6 - https://doi.org/10.1093/treephys/tpu114 SN - 1758-4469 (Online) SN - 0829-318X (Print) N1 - Ab 12 Monaten nach Veröffentlichung kostenfrei zugänglich. VL - 35 IS - 00 SP - 1 EP - 12 PB - Heron CY - Victoria, BC ER - TY - JOUR A1 - Bode, J. A1 - Bartsch, J. A1 - Boulikas, T. A1 - Iber, M. A1 - Mielke, C. A1 - Schübeler, D. A1 - Seibler, Jost A1 - Benham, C. T1 - Transcription-promoting genomic sites in mammalia: their elucidation and architectural principles JF - Gene therapy & molecular biology Y1 - 1998 SN - 1529-9120 VL - 1 IS - 1 SP - 1 EP - 29 ER - TY - JOUR A1 - Halbach, Thorsten A1 - Scheer, Nico T1 - Transcriptional activation by the PHD finger is inhibited through an adjacent leucine zipper that binds 14-3-3 proteins JF - Nucleic Acids Research Y1 - 2000 U6 - https://doi.org/10.1093/nar/28.18.3542 SN - 1362-4962 VL - 28 IS - 18 SP - 3542 EP - 3550 ER - TY - JOUR A1 - Bongaerts, Johannes A1 - Zoschke, Sascha A1 - Weidner, Uwe A1 - Linden, Gottfried T1 - Transcriptional regulation of the proton translocating NADH JF - Molecular microbiology Y1 - 1995 SN - 1365-2958 (E-Journal); 0950-382x (Print) VL - Vol. 16 IS - Iss. 3 SP - 521 EP - 534 ER - TY - CHAP A1 - Bensberg, Frank A1 - Auth, Gunnar A1 - Czarnecki, Christian A1 - Wörndle, Christopher ED - Kemal İlter, H. T1 - Transforming literature-intensive research processes through text analytics – design, implementation and lessons learned N2 - The continuing growth of scientific publications raises the question how research processes can be digitalized and thus realized more productively. Especially in information technology fields, research practice is characterized by a rapidly growing volume of publications. For the search process various information systems exist. However, the analysis of the published content is still a highly manual task. Therefore, we propose a text analytics system that allows a fully digitalized analysis of literature sources. We have realized a prototype by using EBSCO Discovery Service in combination with IBM Watson Explorer and demonstrated the results in real-life research projects. Potential addressees are research institutions, consulting firms, and decision-makers in politics and business practice. KW - Text analytics KW - Text mining KW - Literature review KW - Research process Y1 - 2018 U6 - https://doi.org/10.6084/m9.figshare.7582073.v1 N1 - 5th International Management Information Systems Conference. October 24-26 2018, Ankara ER - TY - CHAP A1 - Seibler, Jost A1 - Schwenk, Frieder T1 - Transgenic RNAi Applications in the Mouse T2 - Methods in Enzymology : Guide to Techniques in Mouse Development, Part B: Mouse Molecular Genetics. 2nd Edition Y1 - 2010 SN - 978-0-12-384880-2 N1 - Methods in Enzymology : Vol. 477 SP - 367 EP - 386 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Reißel, Martin A1 - Bitsch, G. A1 - Mawick, G. A1 - Tokar, G. T1 - Transient FEM Simulation of a Door Closing Process and Application to Fatigue / Bitsch, G. ; Mawick, G. ; Reißel, M. ; Tokar, G. JF - Proceedings of the 20. CAD-FEM Users Meeting, 2002 Y1 - 2002 N1 - 2.11.10 SP - 1 EP - 8 ER - TY - JOUR A1 - Rau, Christoph A1 - Alexopoulos, Spiros A1 - Breitbach, Gerd A1 - Hoffschmidt, Bernhard A1 - Latzke, Markus A1 - Sattler, Johannes Christoph T1 - Transient simulation of a solar-hybrid tower power plant with open volumetric receiver at the location Barstow JF - Energy procedia : proceedings of the SolarPACES 2013 International Conference N2 - In this work the transient simulations of four hybrid solar tower power plant concepts with open-volumetric receiver technology for a location in Barstow-Daggett, USA, are presented. The open-volumetric receiver uses ambient air as heat transfer fluid and the hybridization is realized with a gas turbine. The Rankine cycle is heated by solar-heated air and/or by the gas turbine's flue gases. The plant can be operated in solar-only, hybrid parallel or combined cycle-only mode as well as in any intermediate load levels where the solar portion can vary between 0 to 100%. The simulated plant is based on the configuration of a solar-hybrid power tower project, which is in planning for a site in Northern Algeria. The meteorological data for Barstow-Daggett was taken from the software meteonorm. The solar power tower simulation tool has been developed in the simulation environment MATLAB/Simulink and is validated. Y1 - 2014 U6 - https://doi.org/10.1016/j.egypro.2014.03.157 SN - 1876-6102 VL - 49 SP - 1481 EP - 1490 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Förster, Arnold A1 - Griebel, M. A1 - Indlekofer, K. M. A1 - Lüth, H. T1 - Transport properties of gated resonant tunneling diodes in the single electron regime. Griebel, M.; Indlekofer, K. M.; Förster, A.; Lüth, H. JF - Journal of Applied Physics. 84 (1998), H. 12 Y1 - 1998 SN - 1089-7550 SP - 6719 EP - 6724 ER - TY - JOUR A1 - Förster, Arnold A1 - Griebel, M. A1 - Indlekofer, M. A1 - Lüth, H. T1 - Transport through a buried double barrier single electron transistor at low temperatures JF - Physica E: Low-dimensional Systems and Nanostructures. 2 (1998), H. 1-4 Y1 - 1998 SN - 1386-9477 SP - 502 EP - 506 ER - TY - JOUR A1 - Mennicken, Max A1 - Peter, Sophia K. A1 - Kaulen, Corinna A1 - Simon, Ulrich A1 - Karthäuser, Silvia T1 - Transport through Redox-Active Ru-Terpyridine Complexes Integrated in Single Nanoparticle Devices JF - The Journal of Physical Chemistry C N2 - Transition metal complexes are electrofunctional molecules due to their high conductivity and their intrinsic switching ability involving a metal-to-ligand charge transfer. Here, a method is presented to contact reliably a few to single redox-active Ru-terpyridine complexes in a CMOS compatible nanodevice and preserve their electrical functionality. Using hybrid materials from 14 nm gold nanoparticles (AuNP) and bis-{4′-[4-(mercaptophenyl)-2,2′:6′,2″-terpyridine]}-ruthenium(II) complexes a device size of 30² nm² inclusive nanoelectrodes is achieved. Moreover, this method bears the opportunity for further downscaling. The Ru-complex AuNP devices show symmetric and asymmetric current versus voltage curves with a hysteretic characteristic in two well separated conductance ranges. By theoretical approximations based on the single-channel Landauer model, the charge transport through the formed double-barrier tunnel junction is thoroughly analyzed and its sensibility to the molecule/metal contact is revealed. It can be verified that tunneling transport through the HOMO is the main transport mechanism while decoherent hopping transport is present to a minor extent. Y1 - 2020 U6 - https://doi.org/10.1021/acs.jpcc.9b11716 SN - 1932-7455 VL - 124 IS - 8 SP - 4881 EP - 4889 PB - ACS Publications CY - Washington, DC ER - TY - CHAP A1 - Bayer, Robin A1 - Hescheler, Jürgen A1 - Artmann, Gerhard A1 - Temiz Artmann, Aysegül ED - Staat, Manfred ED - Erni, Daniel T1 - Treating arterial hypertension in a cell culture well T2 - 3rd YRA MedTech Symposium 2019 : May 24 / 2019 / FH AachenW N2 - Hypertension describes the pathological increase of blood pressure, which is most commonly associated with the increase of vascular wall stiffness [1]. Referring to the “Deutsche Bluthochdruck Liga” this pathology shows a growing trend in our aging society. In order to find novel pharmacological and probably personalized treatments, we want to present a functional approach to study biomechanical properties of a human aortic vascular model. In this method review we will give an overview of recent studies which were carried out with the CellDrum technology [2] and underline the added value to already existing standard procedures known from the field of physiology. Herein described CellDrum technology is a system to measure functional mechanical properties of cell monolayers and thin tissue constructs in-vitro. Additionally, the CellDrum enables to elucidate the mechanical response of cells to pharmacological drugs, toxins and vasoactive agents. Due to its highly flexible polymer support, cells can also be mechanically stimulated by steady and cyclic biaxial stretching. Y1 - 2019 SN - 978-3-940402-22-6 U6 - https://doi.org/10.17185/duepublico/48750 SP - 5 EP - 6 PB - Universität Duisburg-Essen CY - Duisburg ER - TY - JOUR A1 - Streun, M. A1 - Chavan, U. A1 - Lame, H. A1 - Parl, C. A1 - Müller-Veggian, Mattea A1 - Ziemons, Karl T1 - Treating the Gain Non-Uniformity of Multi Channel PMTs by Channel-Specific Trigger Levels JF - 2006 IEEE Nuclear Science Symposium Conference Record, Vol. 2. Y1 - 2006 SN - 1082-3654 SP - 1301 EP - 1304 CY - San Diego, CA ER - TY - JOUR A1 - Eilmann, Britta A1 - Rigling, Andreas ED - Abrams, Marc T1 - Tree-growth analyses to estimate tree species' drought tolerance JF - Tree Physiology N2 - Climate change is challenging forestry management and practices. Among other things, tree species with the ability to cope with more extreme climate conditions have to be identified. However, while environmental factors may severely limit tree growth or even cause tree death, assessing a tree species' potential for surviving future aggravated environmental conditions is rather demanding. The aim of this study was to find a tree-ring-based method suitable for identifying very drought-tolerant species, particularly potential substitute species for Scots pine (Pinus sylvestris L.) in Valais. In this inner-Alpine valley, Scots pine used to be the dominating species for dry forests, but today it suffers from high drought-induced mortality. We investigate the growth response of two native tree species, Scots pine and European larch (Larix decidua Mill.), and two non-native species, black pine (Pinus nigra Arnold) and Douglas fir (Pseudotsuga menziesii Mirb. var. menziesii), to drought. This involved analysing how the radial increment of these species responded to increasing water shortage (abandonment of irrigation) and to increasingly frequent drought years. Black pine and Douglas fir are able to cope with drought better than Scots pine and larch, as they show relatively high radial growth even after irrigation has been stopped and a plastic growth response to drought years. European larch does not seem to be able to cope with these dry conditions as it lacks the ability to recover from drought years. The analysis of trees' short-term response to extreme climate events seems to be the most promising and suitable method for detecting how tolerant a tree species is towards drought. However, combining all the methods used in this study provides a complete picture of how water shortage could limit species. Y1 - 2012 U6 - https://doi.org/10.1093/treephys/tps004 SN - 0829-318X (Print) SN - 1758-4469 (Online) VL - 32 IS - 2 SP - 178 EP - 187 PB - Oxford University Press CY - Oxford ER - TY - JOUR A1 - Esch, Thomas T1 - Trends in commercial vehicle powertrains JF - ATZautotechnology N2 - Low emission zones and truck bans, the rising price of diesel and increases in road tolls: all of these factors are putting serious pressure on the transport industry. Commercial vehicle manufacturers and their suppliers are in the process of identifying new solutions to these challenges as part of their efforts to meet the EEV (enhanced environmentally friendly vehicle) limits, which are currently the most robust European exhaust and emissions standards for trucks and buses. KW - European Transient Cycle KW - Common Rail Injection System KW - Commercial Vehicle KW - Selective Catalytic Reduction KW - Diesel Engine Y1 - 2010 U6 - https://doi.org/10.1007/BF03247185 SN - 2192-886X VL - 2010 IS - 10 SP - 26 EP - 31 PB - Vieweg & Sohn CY - Wiesbaden ER - TY - JOUR A1 - Bucur, Alexandru A1 - Lazarescu, Lucian A1 - Pop, Grigore Marian A1 - Achimas, Gheorghe A1 - Gebhardt, Andreas T1 - Tribological performance of biodegradable lubricants under different surface roughness of tools JF - Academic Journal of Manufacturing Engineering Y1 - 2019 SN - 1583-7904 VL - 17 IS - 1 SP - 172 EP - 178 ER - TY - JOUR A1 - Barbazán, Paula A1 - Hagenbach, Adelheid A1 - Paulßen, Elisabeth A1 - Abram, Ulrich A1 - Carballo, Rosa A1 - Rodriguez-Hermida, Sabina A1 - Vázquez-López, Ezequiel M. T1 - Tricarbonyl Rhenium(I) and Technetium(I) Complexes with Hydrazones Derived from 4,5-Diazafluoren-9-one and 1,10-Phenanthroline-5,6-dione JF - European Journal of Inorganic Chemistry N2 - Tricarbonylrhenium(I) and -technetium(I) halide (halide = Cl and Br) complexes of ligands derived from 4,5-diazafluoren-9-one (df) and 1,10-phenanthroline-5,6-dione (phen) derivatives of benzoic and 2-hydroxybenzoic acid hydrazides have been prepared. The complexes have been characterized by elemental analysis, MS, IR, 1H NMR and absorption and emission UV/Vis spectroscopic methods. The metal centres (ReI and TcI) are coordinated through the nitrogen imine atoms and establish five-membered chelate rings, whereas the hydrazone groups stand uncoordinated. The 1H NMR spectra suggest the same behaviour in solution on the basis of only marginal variations in the chemical shifts of the hydrazine protons. Y1 - 2010 U6 - https://doi.org/10.1002/ejic.201000522 SN - 1099-0682 IS - 29 SP - 4622 EP - 4630 PB - Wiley-VCH CY - Weinheim ER - TY - JOUR A1 - Paulßen, Elisabeth A1 - Ngyugen, Hung Huy A1 - Kahlcke, Nils A1 - Deflon, Victor M. A1 - Abram, Ulrich T1 - Tricarbonyltechnetium(I) and -rhenium(I) complexes with N′-thiocarbamoylpicolylbenzamidines JF - Polyhedron N2 - N,N-Dialkylamino(thiocarbonyl)-N′-picolylbenzamidines react with (NEt4)2[M(CO)3X3] (M = Re, X = Br; M = Tc, X = Cl) under formation of neutral [M(CO)3L] complexes in high yields. The monoanionic NNS ligands bind in a facial coordination mode and can readily be modified at the (CS)NR1R2 moiety. The complexes [99Tc(CO)3(LPyMor)] and [Re(CO)3(L)] (L = LPyMor, LPyEt) were characterized by X-ray diffraction. Reactions of [99mTc(CO)3(H2O)3]+ with the N′-thiocarbamoylpicolylbenzamidines give the corresponding 99mTc complexes. The ester group in HLPyCOOEt allows linkage between biomolecules and the metal core. Y1 - 2012 U6 - https://doi.org/10.1016/j.poly.2012.04.008 SN - 0277-5387 VL - 40 IS - 1 SP - 153 EP - 158 PB - Elsevier CY - Amsterdam ER - TY - CHAP A1 - Helmig, Ilka ED - Klanten, Robert T1 - Tristan und Isolde, Samson und Dalila, Capriccio : 3D illustration for posters of Cologne Opera T2 - Papercraft [1] : design and art with paper KW - Papierkunst Y1 - 2009 SN - 978-3-89955-251-5 SP - 202 PB - Gestalten Verlag CY - Berlin ER - TY - CHAP A1 - Dersch, Jürgen A1 - Geyer, Michael A1 - Herrmann, Ulf A1 - Jones, Scott A. A1 - Kelly, Bruce A1 - Kistner, Rainer A1 - Ortmanns, Winfried A1 - Pitz-Paal, Robert A1 - Price, Henry ED - Steinfeld, Aldo T1 - Trough integration into power plants : a study on the performance and economy of integrated solar combined cycle systems T2 - Proceedings of the 11th SolarPACES International Symposium on Concentrated Solar Power and Chemical Energy Technologies : September 4 - 6, 2002, Zurich, Switzerland / Paul Scherrer Institut, PSI; ETH, Eidgenössische Technische Hochschule Zürich Y1 - 2002 SN - 3-9521409-3-7 SP - 661 EP - 671 PB - Paul Scherrer Inst. CY - Villingen ER - TY - JOUR A1 - Dersch, Jürgen A1 - Geyer, Michael A1 - Herrmann, Ulf A1 - Jones, Scott A. A1 - Kelly, Bruce A1 - Kistner, Rainer A1 - Ortmanns, Winfried A1 - Pitz-Paal, Robert A1 - Price, Henry T1 - Trough integration into power plants—a study on the performance and economy of integrated solar combined cycle systems JF - Energy : the international journal Y1 - 2004 U6 - https://doi.org/10.1016/S0360-5442(03)00199-3 SN - 0360-5442 N1 - SolarPACES 2002, Zürich, Switzerland, 4–6 September 2002 VL - 29 IS - 5-6 (Special Issue SolarPaces) SP - 947 EP - 959 ER - TY - CHAP A1 - Ferrein, Alexander A1 - Bharatheesha, Mukunda A1 - Schiffer, Stefan A1 - Corbato, Carlos Hernandez T1 - TRROS 2018 : Teaching Robotics with ROS Workshop at ERF 2018; Proceedings of the Workshop on Teaching Robotics with ROS (held at ERF 2018), co-located with European Robotics Forum 2018 (ERF 2018), Tampere, Finland, March 15th, 2018 T2 - CEUR Workshop Proceedings Y1 - 2019 SN - 1613-0073 IS - Vol-2329 ER - TY - JOUR A1 - Vitusevich, S. A. A1 - Förster, Arnold A1 - Indlekofer, K.-M. A1 - Lüth, H. 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ED - Dewals, Benjamin T1 - Turbulent dispersion in bounded horizontal jets : RANS capabilities and physical modeling comparison T2 - Sustainable Hydraulics in the Era of Global Change : Proceedings of the 4th IAHR Europe Congress (Liege, Belgium, 27-29 July 2016) Y1 - 2016 SN - 978-1-138-02977-4 SN - 978-1-4987-8149-7 (eBook) U6 - https://doi.org/10.1201/b21902-13 SP - 49 EP - 55 PB - CRC Press ER - TY - JOUR A1 - Bung, Daniel Bernhard A1 - Crookston, Brian M. A1 - Valero, Daniel T1 - Turbulent free-surface monitoring with an RGB-D sensor: the hydraulic jump case JF - Journal of Hydraulic Research Y1 - 2020 U6 - https://doi.org/10.1080/00221686.2020.1844810 SN - 1814-2079 PB - Taylor & Francis CY - London ER - TY - JOUR A1 - Selmer, Thorsten A1 - Hermann, Gloria A1 - Jessen, Holly A1 - Gokarn, Ravi R. T1 - Two beta-alanyl-CoA:ammonia lyases in Clostridium propionicum / Herrmann , G. ; Selmer, T. ; Jessen, HJ. ; Gokarn, RR. ; Selifonova, O. ; Gort , SJ. ; , Buckel, W. 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