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 N2 - Urinary stone formation has been evolved to a widespread disease during the last years. The reason for the formation of urinary stones are little crystals, mostly composed of calcium oxalate, which are formed in human kidneys. The early diagnosis of the risk for urinary stone formation of patients can be determined by the “Bonn-Risk-Index” method based on the potentiometric detection of the Ca2+-ion concentration and an optical determination of the triggered crystallisation of calcium oxalate in unprocessed urine. In this work, miniaturised capacitive field-effect EMIS (electrolyte-membrane-insulator-semiconductor) sensors have been developed for the determination of the Ca2+-ion concentration in human native urine. The Ca2+-sensitive EMIS sensors have been systematically characterised by impedance spectroscopy, capacitance–voltage and constant–capacitance method in terms of sensitivity, signal stability and response time in both CaCl2 solutions and in native urine. The obtained results demonstrate the suitability of EMIS sensors for the measurement of the Ca2+-ion concentration in native urine of patients. Y1 - 2010 U6 - https://doi.org/10.1016/j.snb.2008.12.012 SN - 0925-4005 N1 - 22nd International Conference on Eurosensors: Dresden, Germany, 7-10 September 2008 VL - 144 IS - 2 SP - 374 EP - 379 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Reisert, Steffen A1 - Henkel, Hartmut A1 - Schneider, Andreas A1 - Schäfer, Daniel A1 - Friedrich, Peter A1 - Berger, Jörg A1 - Schöning, Michael Josef T1 - Development of a handheld sensor system for the online measurement of hydrogen peroxide in aseptic filling systems JF - Physica Status Solidi (A) N2 - A handheld sensor system for the online measurement of hydrogen peroxide (H2O2) in aseptic sterilisation processes has been developed. It is based on a calorimetric-type gas sensor that consists of a differential set-up of two temperature sensors, of which one is catalytically activated and the second one is passivated and used as reference. The sensor principle relies in detecting a rise in temperature on the active sensor due to the exothermic reaction of H2O2 on the catalytic surface. To characterise the sensor system towards H2O2 sensitivity and other influencing factors, measurements have been carried out both at an experimental set-up and a manufacturer's sterilisation machine. Physical sensor characterisation was done by means of the optical microscopy. Y1 - 2010 U6 - https://doi.org/10.1002/pssa.200983304 SN - 1862-6300 N1 - Special Issue: Engineering of Functional Interfaces EnFI 2009 VL - 207 IS - 4 SP - 913 EP - 918 PB - Wiley-VCH CY - Berlin ER - TY - JOUR A1 - Miyamoto, Ko-ichiro A1 - Sugawara, Yuri A1 - Kanoh, Shin´ichiro A1 - Yoshinobu, Tatsuo A1 - Wagner, Torsten A1 - Schöning, Michael Josef T1 - Image correction method for the chemical imaging sensor JF - Sensors and Actuators B: Chemical N2 - The chemical imaging sensor is a semiconductor-based chemical sensor that can visualize the spatial distribution of chemical species. For the practical application of this sensor, artifacts in the chemical images due to defects of the semiconductor substrate and contamination of the sensing surface etc. have been a major problem. An image correction method was developed to eliminate the influence of nonuniformity of individual sensor plate. Y1 - 2010 U6 - https://doi.org/10.1016/j.snb.2008.10.069 SN - 0925-4005 N1 - 22nd International Conference on Eurosensors: Dresden, Germany, 7-10 September 2008 VL - 144 IS - 2 SP - 344 EP - 348 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Unden, Gottfried A1 - Becker, S. A1 - Bongaerts, Johannes A1 - Holighaus, G. A1 - Schirawski, Jan A1 - Six, Simon T1 - O2-sensing and O2-dependent gene regulation in facultatively anaerobic bacteria JF - Archives of microbiology Y1 - 1995 SN - 1432-072X (E-Journal); 0003-9276 (Print); 0302-8933 (Print) VL - Vol. 164 IS - Iss. 2 SP - 81 EP - 90 ER - TY - JOUR A1 - Hoffschmidt, Bernhard A1 - Becker, Manfred A1 - Fend, Thomas T1 - Theoretical and numerical investigation of flow stability in porous materials applied as volumetric solar receivers / M. Becker ; T. Fend ; B. Hoffschmidt ... JF - Solar energy. 80 (2006), H. 10 Y1 - 2006 SN - 0038-092X N1 - Solar Power and Chemical Energy Systems (SolarPACES’04) SP - 1241 EP - 1248 ER - TY - JOUR A1 - Unden, Gottfried A1 - Becker, S. A1 - Bongaerts, Johannes A1 - Schirawski, Jan A1 - Six, Simon T1 - Oxygen regulated gene expression in facultatively anaerobic bacteria JF - Antonie van Leeuwenhoek Y1 - 1994 SN - 0003-6072 (Print) ; 1572-9699 (online) VL - Vol. 66 IS - Iss. 1-3 SP - 3 EP - 22 ER - TY - JOUR A1 - Abouzar, Maryam H. A1 - Poghossian, Arshak A1 - Siqueira, José R. Jr. A1 - Oliveira, Osvaldo N. Jr. A1 - Moritz, Werner A1 - Schöning, Michael Josef T1 - Capacitive electrolyte-insulator-semiconductor structures functionalised with a polyelectrolyte/enzyme multilayer: New strategy for enhanced field-effect biosensing JF - Physica Status Solidi (A) N2 - A novel strategy for enhanced field-effect biosensing using capacitive electrolyte–insulator–semiconductor (EIS) structures functionalised with pH-responsive weak polyelectrolyte/enzyme or dendrimer/enzyme multilayers is presented. The feasibility of the proposed approach is exemplarily demonstrated by realising a penicillin biosensor based on a capacitive p-Si–SiO2 EIS structure functionalised with a poly(allylamine hydrochloride) (PAH)/penicillinase and a poly(amidoamine) dendrimer/penicillinase multilayer. The developed sensors response to changes in both the local pH value near the gate surface and the charge of macromolecules induced via enzymatic reaction, resulting in a higher sensitivity. For comparison, an EIS penicillin biosensor with adsorptively immobilised penicillinase has been also studied. The highest penicillin sensitivity of 100 mV/dec has been observed for the EIS sensor functionalised with the PAH/penicillinase multilayer. The lower and upper detection limit was around 20 µM and 10 mM, respectively. In addition, an incorporation of enzymes in a multilayer prepared by layer-by-layer technique provides a larger amount of immobilised enzymes per sensor area, reduces enzyme leaching effects and thus, enhances the biosensor lifetime (the loss of penicillin sensitivity after 2 months was 10–12%). Y1 - 2010 U6 - https://doi.org/10.1002/pssa.200983317 SN - 1862-6300 N1 - Special Issue: Engineering of Functional Interfaces EnFI 2009 VL - 207 IS - 4 SP - 884 EP - 890 PB - Wiley-VCH CY - Berlin ER - TY - JOUR A1 - Schöning, Michael Josef A1 - Tsarouchas, D. A1 - Beckers, Leah A1 - Schubert, J. A1 - Zander, W. A1 - Kordoš, P. A1 - Lüth, Hans T1 - A highly long-term stable silicon-based pH sensor using pulsed laser deposition technique JF - Sensors and Actuators B. 35 (1996), H. 1-3 Y1 - 1996 SN - 0925-4005 SP - 228 EP - 233 ER - TY - JOUR A1 - Schöning, Michael Josef A1 - Prämassing, T. A1 - Beckers, Leah A1 - Zander, W. T1 - Ein langzeitstabiler pH-Sensor auf Siliziumbasis hergestellt in Dünnschichttechnik mittels Laserablation JF - Chemie- und Biosensoren : aktuelle Anwendungen und Entwicklungstrends / 3. Dresdner Sensor-Symposium, 8. - 10. Dezember 1997, Dresden-Radebeul. J. P. Baselt ... (Hg.) Y1 - 1998 SN - 3-933168-03-1 N1 - Serie Dresdner Beiträge zur Sensorik ; 5 SP - 99 EP - 102 PB - Dresden Univ. Press CY - Dresden ; München ER - TY - JOUR A1 - Schmitz, Günter A1 - Roetert, J. A1 - Pischinger, Martin T1 - A Fast Intelligent VMEbus System for Combustion Analysis in Engines JF - 19th [nineteenth] International Symposium on Automotive Technology & [and] Automation : with particular reference to cell control and quality management systems for the manufacturing industries; Monte Carlo, 24. - 28. October 1988. Y1 - 1988 SN - 0947719229 SP - 381 EP - 391 PB - Automotive Automation Ltd CY - Croydon 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 - JOUR A1 - Schöning, Michael Josef A1 - Kirchner, Patrick A1 - Ng, Yue Ann A1 - Spelthahn, Heiko A1 - Schneider, Andreas A1 - Henkel, Hartmut A1 - Friedrich, Peter A1 - Kolstad, Jens A1 - Berger, Jörg A1 - Keusgen, Michael T1 - Gas sensor investigation based on a catalytically activated thin-film thermopile for H2O2 detection JF - Physica Status Solidi (A) N2 - In aseptic filling systems, hydrogen peroxide vapour is commonly used for the reduction of microbial contaminations in carton packages. In this process, the germicidal efficiency of the vapour depends especially on the H₂O₂ concentration. To monitor the H₂O₂ concentration, a calorimetric H₂O₂ gas sensor based on a catalytically activated thin-film thermopile is investigated. Two different sensor layouts, namely a circular and a linear form, as well as two various material pairs such as tungsten/nickel and gold/nickel, have been examined for the realization of a thin-film thermopile. Additionally, manganese oxide and palladium particles have been compared as responsive catalysts towards H₂O₂. The thin-film sensors have been investigated at various H₂O₂ concentrations, gas temperatures and flow rates. Y1 - 2010 U6 - https://doi.org/10.1002/pssa.200983309 SN - 1862-6300 N1 - Special Issue: Engineering of Functional Interfaces EnFI 2009 VL - 207 IS - 4 SP - 787 EP - 792 PB - Wiley-VCH CY - Berlin ER - TY - JOUR A1 - Huck, Christina A1 - Poghossian, Arshak A1 - Bäcker, Matthias A1 - Chaudhuri, S. A1 - Zander, W. A1 - Schubert, J. A1 - Begoyan, Vardges K. A1 - Buniatyan, V. V. A1 - Wagner, P. A1 - Schöning, Michael Josef T1 - Capacitively coupled electrolyte-conductivity sensor based on high-k material of barium strontium titanate JF - Sensors and actuators. B: Chemical Y1 - 2014 U6 - https://doi.org/10.1016/j.snb.2014.02.103 SN - 1873-3077 (E-Journal); 0925-4005 (Print) IS - 198 SP - 102 EP - 109 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Grundmann, Jan Thimo A1 - Dachwald, Bernd A1 - Grimm, Christian D. A1 - Kahle, Ralph A1 - Koch, Aaron Dexter A1 - Krause, Christian A1 - Lange, Caroline A1 - Quantius, Dominik A1 - Ulamec, Stephan T1 - Spacecraft for Hypervelocity Impact Research – An Overview of Capabilities, Constraints and the Challenges of Getting There JF - Procedia Engineering Y1 - 2015 U6 - https://doi.org/10.1016/j.proeng.2015.04.021 SN - 1877-7058 N1 - Proceedings of the 2015 Hypervelocity Impact Symposium (HVIS 2015) VL - Vol. 103 SP - 151 EP - 158 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Buniatyan, Vahe V. A1 - Abouzar, Maryam H. A1 - Martirosyan, Norayr W. A1 - Schubert, Jürgen A1 - Gevorgian, Spartak A1 - Schöning, Michael Josef A1 - Poghossian, Arshak T1 - pH-sensitive properties of barium strontium titanate (BST) thin films prepared by pulsed laser deposition technique JF - Physica Status Solidi (A) N2 - pH-sensitive properties of barium strontium titanate (BST) high-k thin films as alternative gate material for field-effect capacitive (bio-)chemical sensors based on an electrolyte-insulator-semiconductor system have been investigated. The BST films of different compositions (Ba0.31Sr0.69TiO3, Ba0.25Sr0.75TiO3 and Mg-doped Ba0.8Sr0.2Mg0.1Ti0.9O3) were deposited by pulsed laser deposition technique from targets fabricated by self-propagating high-temperature synthesis. The realised sensors have been electrochemically characterised by means of impedance-spectroscopy, capacitance–voltage and constant-capacitance method. The sensors possess a Nernstian-like pH sensitivity in the concentration range between pH 3 and 11 with a response time of 5–10 s. An equivalent circuit model for the BST-based capacitive field-effect sensor is discussed. Y1 - 2010 U6 - https://doi.org/10.1002/pssa.200983310 SN - 1862-6300 N1 - Special Issue: Engineering of Functional Interfaces EnFI 2009 VL - 207 IS - 4 SP - 824 EP - 830 PB - Wiley-VCH CY - Berlin ER - TY - JOUR A1 - Turek, Monik A1 - Heiden, Wolfgang A1 - Guo, Sharon A1 - Riesen, Alfred A1 - Schubert, Jürgen A1 - Zander, Willi A1 - Krüger, Peter A1 - Keusgen, Michael A1 - Schöning, Michael Josef T1 - Simultaneous detection of cyanide and heavy metals for environmental analysis by means of µISEs JF - Physica Status Solidi (A) N2 - In environmental analysis, cyanide and heavy metals play an important role, because these substances are highly toxic for biological systems. They can lead to chronic and acute diseases. Due to the chemical properties of cyanide it is frequently used for industrial processes such as extraction of silver and gold. Heavy metals can be found as trace elements in nature and are often applied in industries e.g., galvanization processes. Up to now, cyanide and heavy metals can be detected by several sensors separately and their detection is often limited to laboratory investigations. In this publication, with regard to an in situ analysis, a new miniaturized silicon-based sensor system for the simultaneous detection of cyanide and heavy metals in aqueous solutions is presented that is based on chalcogenide glass-based micro ion-selective electrodes (µISEs). The µISEs are incorporated into a specially designed measuring system for the simultaneous detection of heavy metals and cyanide in solutions and validated by simultaneous measurements of Cu2+- and CN−-ions, Cd2+- and CN−- ions and Pb2+- and CN−-ions. The particular sensor system has shown good sensor properties in the µ-molar ion-concentration range. For simultaneous measurements in complex heavy metal and cyanide solutions an intelligent software using fuzzy logic is discussed. Y1 - 2010 U6 - https://doi.org/10.1002/pssa.200983303 SN - 1862-6300 N1 - Special Issue: Engineering of Functional Interfaces EnFI 2009 VL - 207 IS - 4 SP - 817 EP - 823 PB - Wiley-VCH CY - Berlin ER - TY - JOUR A1 - Jansen, S. V. A1 - Behbahani, Mehdi A1 - Laumen, M. A1 - Kaufmann, T. A1 - Hormes, M. A1 - Behr, Marek A1 - Schmitz-Rode, T. A1 - Steinseifer, U. T1 - Investigation of Steady Flow Through a Realistic Model of the Thoracic Human Aorta Using 3D Stereo PIV and CFD-Simulation JF - ASAIO Journal Y1 - 2010 U6 - https://doi.org/10.1097/01.mat.0000369377.65122.a3 N1 - American Society of Artificial Organs (ASAIO), Baltimore, USA, May 27-29, 2010 VL - 56 IS - 2 SP - 98 PB - Lippincott Williams & Wilkins CY - Philadelphia ER - TY - JOUR A1 - Behbahani, Mehdi A1 - Probst, M. A1 - Mai, A. A1 - Tran, L. A1 - Vonderstein, K. A1 - Keschenau, P. A1 - Linde, T. A1 - Steinseifer, U. A1 - Behr, Marek A1 - Mottaghy, K. T1 - The influence of high shear on thrombosis and hemolysis in artificial organs JF - The International Journal of Artificial Organs Y1 - 2010 SN - 0391-3988 VL - 33 IS - 7 SP - 426 EP - 426 PB - Sage CY - Thousand Oaks ER - TY - JOUR A1 - Behbahani, Mehdi A1 - Behr, Marek A1 - Bischof, F. A1 - Wolf, G. E. T1 - Kranken Herzen helfen - Ingenieure und Informatiker entwickeln gemeinsam eine Miniaturblutpumpe / Behbahani, M. ; Behr, M. ; Bischof, F. ; Wolf, G. E. JF - RWTH-Themen (2007) Y1 - 2007 SN - 0179-079X SP - 44 EP - 46 ER - TY - JOUR A1 - Schöning, Michael Josef A1 - Beckers, Leah A1 - Schaub, A. A1 - Zander, W. A1 - Schubert, J. A1 - Mesters, S. A1 - Kordos, P. A1 - Lüth, H. T1 - A novel silicon-based pH sensor prepared by pulsed laser deposition technique JF - Proceedings of Eurosensors X, the 10th European Conference on Solid-State Transducers, September 8-11, 1996, Leuven, Belgium / [KU Leuven]. Puers, Robert. Vol. 3. Y1 - 1996 SN - 90-803282-1-9 N1 - Eurosensors ; (10, 1996, Louvain) Eurosensors, the European Conference on Solid-State Transducers ; (10 : ; 1996.09.08-11 : ; Leuven) SP - 781 EP - 784 PB - Catholic University Leuven CY - Heverlee, Belgium ER - TY - JOUR A1 - Elbers, Gereon A1 - Pfeffer, H.-U. A1 - Friesel, J. A1 - Beier, Reinhold T1 - Pilotuntersuchungen gemäß dem Verordnungsentwurf nach § 40, Abs. 2 des Bundesimmissionsschutzgesetzes / H.-U. Pfeffer, J. Friesel, G. Elbers, R. Beier, K. Ellermann JF - Drei Jahrzehnte Luftqualitätsüberwachung : Vorträge und Berichte zum Kolloquium "Drei Jahrzehnte Luftqualitätsüberwachung - Bilanz und Perspektiven" am 11. November 1993 in Essen / [Hrsg.: Landesanstalt für Immissionsschutz Nordrhein-Westfalen. Red. Bearb.: Robert Niesenhaus] Y1 - 1993 N1 - LIS-Berichte ; 110 ; SP - 117 CY - Essen ER - TY - JOUR A1 - Siqueira, José R. Jr. A1 - Bäcker, Matthias A1 - Poghossian, Arshak A1 - Zucolotto, Valtencir A1 - Oliveira, Osvaldo N. Jr. A1 - Schöning, Michael Josef T1 - Associating biosensing properties with the morphological structure of multilayers containing carbon nanotubes on field-effect devices JF - Physica Status Solidi (A) N2 - The control of molecular architecture provided by the layer-by-layer (LbL) technique has led to enhanced biosensors, in which advantageous features of distinct materials can be combined. Full optimization of biosensing performance, however, is only reached if the film morphology is suitable for the principle of detection of a specific biosensor. In this paper, we report a detailed morphology analysis of LbL films made with alternating layers of single-walled carbon nanotubes (SWNTs) and polyamidoamine (PAMAM) dendrimers, which were then covered with a layer of penicillinase (PEN). An optimized performance to detect penicillin G was obtained with 6-bilayer SWNT/PAMAM LbL films deposited on p-Si-SiO2-Ta2O5 chips, used in biosensors based on a capacitive electrolyte-insulator-semiconductor (EIS) and a light-addressable potentiometric sensor (LAPS) structure, respectively. Field-emission scanning electron microscopy (FESEM) and atomic force microscopy (AFM) images indicated that the LbL films were porous, with a large surface area due to interconnection of SWNT into PAMAM layers. This morphology was instrumental for the adsorption of a larger quantity of PEN, with the resulting LbL film being highly stable. The experiments to detect penicillin were performed with constant-capacitance (ConCap) and constant-current (CC) measurements for EIS and LAPS sensors, respectively, which revealed an enhanced detection signal and sensitivity of ca. 100 mV/decade for the field-effect sensors modified with the PAMAM/SWNT LbL film. It is concluded that controlling film morphology is essential for an enhanced performance of biosensors, not only in terms of sensitivity but also stability and response time. Y1 - 2010 U6 - https://doi.org/10.1002/pssa.200983301 SN - 1862-6300 N1 - Special Issue: Engineering of Functional Interfaces EnFI 2009 VL - 207 IS - 4 SP - 781 EP - 786 PB - Wiley-VCH CY - Berlin ER - TY - JOUR A1 - Huck, Christina A1 - Poghossian, Arshak A1 - Bäcker, Matthias A1 - Reisert, Steffen A1 - Schubert, J. A1 - Zander, W. A1 - Begoyan, Vardges K. A1 - Buniatyan, V. V. A1 - Schöning, Michael Josef T1 - Chemical sensors based on a high-k perovskite oxide of barium strontium titanate JF - Procedia Engineering N2 - High-k perovskite oxide of barium strontium titanate (BST) represents a very attractive multi-functional transducer material for the development of (bio-)chemical sensors for liquids. In this work, BST films have been applied as a sensitive transducer material for a label-free detection of adsorbed charged macromolecules (positively charged polyelectrolytes) and concentration of hydrogen peroxide vapor as well as protection insulator layer for a contactless electrolyte-conductivity sensor. The experimental results of characterization of individual sensors are presented. Special emphasis is devoted towards the development of a capacitively-coupled contactless electrolyte-conductivity sensor. KW - barium strontium titanate KW - high-k material KW - contactless conductivity sensor KW - multi-functional material KW - hydrogen peroxide Y1 - 2014 U6 - https://doi.org/10.1016/j.proeng.2014.11.258 SN - 1877-7058 N1 - EUROSENSORS 2014 ; European Conference on Solid-State Transducers <28, 2014> VL - 87 SP - 28 EP - 31 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Gossla, Ulrich A1 - Buttel, Luc A1 - Wahrmund, Holger A1 - Mehlig, Bernd T1 - Bemessung, Anwendung und Qualitätssicherung von Stahlfaserspritzbeton im Tunnelbau JF - Beton- und Stahlbetonbau N2 - Die Spritzbetonbauweise hat sich im Tunnelbau seit Jahren bewährt. Spritzbeton wird als unbewehrter Beton, in Verbindung mit Bewehrung sowie als Stahlfaserspritzbeton eingesetzt. Bei den meisten Tunnelschalen aus Stahlfaserspritzbeton werden Stahlfasern derzeit nur als konstruktive Bewehrung verwendet. Die Faserzugabe führt zu einer nennenswerten Erhöhung der Bruchenergie und somit zu einer höheren Zähigkeit des sonst spröden Materials und damit zu einer höheren Sicherheit. Stahlfaserspritzbeton kann auch anstelle von Spritzbeton mit statisch erforderlicher Mattenbewehrung eingesetzt werden. Die Bemessung erfolgt dann unter Berücksichtigung der Nachrisszugfestigkeit. Diese kann wie bei Stahlfaserbeton an Biegebalken ermittelt werden, die aus größeren Proben herausgesägt werden. Anhand von verschiedenen Beispielen werden die unterschiedlichen Anwendungen aufgezeigt und die dafür erforderlichen Prüfungen vorgestellt. Y1 - 2010 U6 - https://doi.org/10.1002/best.200900688 SN - 0005-9900 VL - 105 IS - 2 SP - 92 EP - 101 PB - Ernst & Sohn CY - Berlin ER - TY - JOUR A1 - Behbahani, Mehdi A1 - Tran, L. A1 - Waluga, C. A1 - Behr, Marek A1 - Oedekoven, B. A1 - Mottaghy, K. T1 - Model-based Numerical Analysis of Platelet Adhesion, Thrombus Growth and Aggregation for Assist Devices JF - The International Journal of Artificial Organs. 32 (2009), H. 7 Y1 - 2009 SN - 0391-3988 N1 - Abstracts - Oral Presentations: XXXVI Annual ESAO Congress, 2-5 September 2009, Compiègne - France; European Society of Artificial Organs (ESAO), Compiegne, France, September 2-5, 2009 SP - 398 EP - 398 ER - TY - JOUR A1 - Schöning, Michael Josef A1 - Schaub, A. A1 - Zundel, A. A1 - Beckers, Leah A1 - Schubert, J. A1 - Zander, W. A1 - Kordos, P. A1 - Lüth, H. T1 - Pulsed laser deposition as a novel thin film preparation method for silicon-based field effect sensors JF - Proceedings of the 25th European Solid State Device Research Conference : the Netherlands Congress Centre, The Hague, the Netherlands, 25th - 27th September 1995 / ESSDERC '95. Ed. by H. C. de Graaff Y1 - 1995 SN - 2-86332-182-X N1 - ESSDERC ; (25, 1995, 's-Gravenhage) ; European Solid State Device Research Conference (ESSDERC) ; (25 : ; 1995.09.25-27 : ; Den Haag) SP - 601 EP - 604 PB - Ed. Frontières CY - Gif-sur-Yvette ER - TY - JOUR A1 - Behbahani, Mehdi A1 - Behr, Marek A1 - Arora, D. A1 - Coronado, O. A1 - Pasquali, M. T1 - CFD Analysis of MicroMed Debakey Pump and Hemolysis Prediction / Behbahani, M. ; Behr, M. ; Arora, D. ; Coronado, O. ; Pasquali, M. JF - Artificial Organs. 30 (2006), H. 11 Y1 - 2006 SN - 1525-1594 N1 - Abstracts 14th Congress of the International Society for Rotary Blood Pumps, Leuven, Belgium, August 31–September 2, 2006 ; S7-4 SP - A45 EP - A46 ER - TY - JOUR A1 - Behbahani, Mehdi A1 - Behr, Marek A1 - Hormes, M. A1 - Steinseifer, U. A1 - Arora, D. A1 - Coronado, O. A1 - Pasquali, M. T1 - A Review of Computational Fluid Dynamics Analysis of Blood Pumps JF - European Journal of Applied Mathematics. 20 (2009), H. 4 Y1 - 2009 SP - 363 EP - 397 PB - Cambridge Univ. Press CY - Cambridge ER - TY - JOUR A1 - Behbahani, Mehdi A1 - Tran, L. A1 - Jockenhövel, S. A1 - Behr, Marek A1 - Mottaghy, K. T1 - Numerical prediction of thrombocyte reactions for application to a vascular flow model JF - British Journal of Surgery Y1 - 2011 SN - 1365-2168 N1 - 46th Congress of the European Society for Surgical Research, Aachen, Germany, 25-28 May 2011 ; ESSR Abstracts 2011 ; Oral Sessions OP10-5 VL - 98 IS - S5 SP - S17 PB - Oxford University Press CY - Oxford ER - TY - JOUR A1 - Nam, J. A1 - Arora, D. A1 - Behbahani, Mehdi A1 - Probst, M. A1 - Benkowski, R. A1 - Behr, Marek A1 - Pasquali, M. T1 - New computational method in hemolysis analysis for artificial heart pump Y1 - 2010 N1 - Posterpresentation ; American Society of Artificial Organs (ASAIO), Baltimore, USA, May 27-29, 2010 ER - TY - JOUR A1 - Ullrich, Sebastian A1 - Grottke, Oliver A1 - Rossaint, Rolf A1 - Staat, Manfred A1 - Deserno, Thomas M. A1 - Kuhlen, Torsten T1 - Virtual Needle Simulation with Haptics for Regional Anaesthesia Y1 - 2010 N1 - IEEE Virtual Reality 2010, Workshop on Medical Virtual Environments, Waltham, MA, USA, March 21, 2010 ER - TY - JOUR A1 - Kämper, Klaus-Peter A1 - Berg, U. A1 - Begemann, M. A1 - Hagemann, B. T1 - Series production and testing of a micro motor. Serienfertigung und Prüfung eines Mikromotors JF - Actuator 98 : 6th International Conference on New Actuators ; 17 - 19 June, 1998, Bremen, Germany ; conference proceedings / ed.: Hubert Borgmann ... Y1 - 1998 SN - 3-933339-00-6 N1 - Konferenz-Einzelbericht: ACTUATOR, Internat. Conf. on New Actuators SP - 552 EP - 555 PB - Messe Bremen CY - Bremen ER - TY - JOUR A1 - Behbahani, Mehdi A1 - Waluga, C. A1 - Arlt, S. A1 - Behr, Marek A1 - Mottaghy, K. T1 - Computational Analysis of Platelet Aggregation in a Taylor-Couette System JF - The International Journal of Artificial Organs. 31 (2008), H. 7 Y1 - 2008 SN - 0391-3988 N1 - Posterpresentation ; European Society of Artificial Organs (ESAO), Geneva, Switzerland SP - 643 ER - TY - JOUR A1 - Timme, Michael T1 - Mietschuldenfreiheitsbescheinigung durch den bisherigen Vermieter? JF - MDR Monatsschrift für Deutsches Recht N2 - Der VIII. Zivilsenat des BGH hat entschieden, dass ein Mieter von seinem ehemaligen Vermieter keine „Mietschuldenfreiheitsbescheinigung‘‘ verlangen kann, die über eine Quittung für die erhaltenen Mietzahlungen hinausgeht. Der folgende Beitrag untersucht die Konsequenzen der aktuellen Entscheidung. Y1 - 2010 U6 - https://doi.org/10.9785/ovs-mdtr-2010-60 SN - 0340-1812 VL - 64 IS - 2 SP - 60 EP - 61 PB - Verlag Dr. Otto Schmidt CY - Köln ER - TY - JOUR A1 - Probst, M. A1 - Behbahani, Mehdi A1 - Borrmann, E. A1 - Elgeti, S. A1 - Nicolai, M. A1 - Behr, Marek T1 - Hemodynamic Modeling for Numerical Analysis and Design of Medical Devices Y1 - 2010 N1 - Posterpresentation ; NIC Symposium 2010 ; 24 - 25 February 2010 Jülich, Germany ER - TY - JOUR A1 - Timme, Michael A1 - Hülk, Fabian T1 - Schriftform bei Mietvertrag mit einer Aktiengesellschaft JF - Neue Zeitschrift für Gesellschaftsrecht (NZG) Y1 - 2010 SN - 1434-9272 VL - 13 IS - 5 SP - 177 EP - 178 PB - Beck CY - München ER - TY - JOUR A1 - Esch, Thomas A1 - Salber, Wolfgang A1 - Kemper, Hans A1 - Staay, F. van der T1 - Der elektromechanische Ventiltrieb - Systembaustein für zukünftige Antriebskonzepte, Teil 2. JF - Motortechnische Zeitschrift (MTZ). Y1 - 2001 U6 - https://doi.org/10.1007/bf03227081 SN - 0024-8525 VL - 62 IS - 1 SP - 44 EP - 55 PB - Springer Nature CY - Basel ER - TY - JOUR A1 - Esch, Thomas A1 - Salber, Wolfgang A1 - Wolters, Peter A1 - Geiger, José A1 - Dilthey, Jochen T1 - Synergies of variable valve actuation and direct injection JF - Direct injection SI engine technology 2002 : [SAE 2002 world congress, Detroit, Michigan, USA, March 4 - 7, 2002]. Y1 - 2002 SN - 0-7680-0961-8 N1 - Konferenz-Einzelbericht SP - 45 EP - 53 PB - Society of Automotive Engineers CY - Warrendale, Pa ER - TY - JOUR A1 - Behbahani, Mehdi A1 - Mai, A. A1 - Bergmann, B. A1 - Waluga, C. A1 - Behr, Marek A1 - Tran, L. A1 - Vonderstein, K. A1 - Mottaghy, K. T1 - Modeling and Numerical Simulation of Blood Damage Y1 - 2010 N1 - Posterpresentation ; Umbrella Symposium "Modelling and Simulation in Medicine, Engineering and Sciences", Forschungszentrum Jülich, January 18-20, 2010 ER - TY - JOUR A1 - Behbahani, Mehdi A1 - Waluga, C. A1 - Stock, S. A1 - Mai, A. A1 - Bergmann, B. A1 - Behr, Marek A1 - Tran, L. A1 - Vonderstein, K. A1 - Scheidt, H. A1 - Oedekoven, B. A1 - Mottaghy, K. T1 - Modelling and Numerical Analysis of Platelet Reactions and Surface Thrombus Growth Y1 - 2009 N1 - Posterpresentation ; European Society of Biomaterials (ESB), Lausanne, Switzerland, September 7-10, 2009 ER - TY - JOUR A1 - Timme, Michael T1 - Die Schenkung eines Tieres an einen beschränkt Geschäftsfähigen JF - Juristische Arbeitsblätter Y1 - 2010 SN - 0720-6356 SP - 174 EP - 176 PB - Beck CY - München ER - TY - JOUR A1 - Pfaff, Raphael A1 - Schmidt, Bernd A1 - Pinders, Udo T1 - Energieeffizienz steigern durch Rekuperationseinrichtungen JF - Deine Bahn Y1 - 2015 SN - 0172-4479 IS - 5 SP - 50 EP - 53 PB - Eisenbahn-Fachverlag CY - Mainz ER - TY - JOUR A1 - Pfaff, Raphael A1 - Enning, Manfred T1 - Die nachhaltige Alternative zum autonomen Lastwagen JF - Deine Bahn Y1 - 2017 IS - 10 SP - 22 EP - 26 ER - TY - JOUR A1 - Pfaff, Raphael T1 - Braking distance prediction for vehicle consist in low-speed on-sight operation: a Monte Carlo approach JF - Railway Engineering Science N2 - The first and last mile of a railway journey, in both freight and transit applications, constitutes a high effort and is either non-productive (e.g. in the case of depot operations) or highly inefficient (e.g. in industrial railways). These parts are typically managed on-sight, i.e. with no signalling and train protection systems ensuring the freedom of movement. This is possible due to the rather short braking distances of individual vehicles and shunting consists. The present article analyses the braking behaviour of such shunting units. For this purpose, a dedicated model is developed. It is calibrated on published results of brake tests and validated against a high-definition model for low-speed applications. Based on this model, multiple simulations are executed to obtain a Monte Carlo simulation of the resulting braking distances. Based on the distribution properties and established safety levels, the risk of exceeding certain braking distances is evaluated and maximum braking distances are derived. Together with certain parameters of the system, these can serve in the design and safety assessment of driver assistance systems and automation of these processes. KW - Freight rail KW - Shunting KW - Braking curves KW - Brake set-up KW - Driver assistance system Y1 - 2023 U6 - https://doi.org/10.1007/s40534-023-00303-7 SN - 2662-4753 (eISSN) SN - 2662-4745 (Print) VL - 31 IS - 2 SP - 135 EP - 144 PB - SpringerOpen ER - TY - JOUR A1 - Wilbring, Daniela A1 - Enning, Manfred A1 - Pfaff, Raphael A1 - Schmidt, Bernd T1 - Neue Perspektiven für die Bahn in der Produktions- und Distributionslogistik durch Prozessautomation JF - ETR - Eisenbahntechnische Rundschau Y1 - 2020 SN - 0013-2845 VL - 69 IS - 3 SP - 15 EP - 19 PB - DVV Mediagroup CY - Hamburg ER - TY - JOUR A1 - Enning, Manfred A1 - Pfaff, Raphael T1 - Güterwagen 4.0 - Der Güterwagen für das Internet der Dinge. Teil 1: Gesamtsystembetrachtung und grundlegendes Konzept JF - ETR - Eisenbahntechnische Rundschau Y1 - 2017 SN - 0013-2845 VL - 66 IS - 1/2 SP - 12 EP - 16 PB - DVV Media Group CY - Hamburg ER - TY - JOUR A1 - Pfaff, Raphael A1 - Enning, Manfred T1 - Güterwagen 4.0 - Der Güterwagen für das Internet der Dinge. Teil 2: Ausgewählte technische Aspekte und Prozesse JF - ETR - Eisenbahntechnische Rundschau Y1 - 2017 SN - 0013-2845 VL - 66 IS - 5 SP - 74 EP - 77 PB - DVV Media Group CY - Hamburg ER - TY - JOUR A1 - Seiler, Friedrich A1 - Pichler, Alexander A1 - Pfaff, Raphael A1 - Srulijes, Julio T1 - Novel processing tools for automated doppler picture velocimetry (DPV) evaluation JF - Journal of visualization Y1 - 2009 SN - 1343-8875 VL - Vol. 12 IS - Iss. 4 SP - 323 EP - 337 ER - TY - JOUR A1 - Bruksle, Ieva A1 - Chwallek, Constanze A1 - Krastina, Anzelika T1 - Strengthening sustainability in entrepreneurship education - implications for shifting entrepreneurial thinking towards sustainability at universities JF - ACTA PROSPERITATIS N2 - By developing innovative solutions to social and environmental problems, sustainable ventures carry greatpotential. Entrepreneurship which focuses especially on new venture creation can be developed through education anduniversities, in particular, are called upon to provide an impetus for social change. But social innovations are associatedwith certain hurdles, which are related to the multi-dimensionality, i.e. the tension between creating social,environmental and economic value and dealing with a multiplicity of stakeholders. The already complex field ofentrepreneurship education has to face these challenges. This paper, therefore, aims to identify starting points for theintegration of sustainability into entrepreneurship education. To pursue this goal experiences from three differentproject initiatives between the partner universities: Lapland University of Applied Sciences, FH Aachen University ofApplied Sciences and Turiba University are reflected and findings are systematically condensed into recommendationsfor education on sustainable entrepreneurship. KW - climate change KW - entrepreneurship education KW - Finland KW - Germany KW - Latvia Y1 - 2023 U6 - https://doi.org/10.37804/1691-6077-2023-14-37-48 SN - 1691-6077 VL - 14 IS - 1 SP - 37 EP - 48 PB - Sciendo ER - TY - JOUR A1 - Franzen, Julius A1 - Pinders, Erik A1 - Pfaff, Raphael A1 - Enning, Manfred T1 - RailCrowd’s virtual fleets: Make most of your asset data JF - Deine Bahn N2 - For smaller railway operators or those with a diverse fleet, it can be difficult to collect sufficient data to improve maintenance programs. At the same time, new rules such as entity in charge of maintenance – ECM – regulations impose an additional workload by requiring a dedicated maintenance management system and specific reports. The RailCrowd platform sets out to facilitate compliance with ECM and similar regulations while at the same time pooling anonymised fleet data across operators to form virtual fleets, providing greater data insights. Y1 - 2018 SN - 0948-7263 IS - 9 SP - 11 EP - 13 PB - Bahn-Fachverlag CY - Berlin ER -