@article{vonHaefenKrautwaldStolleetal.2022, author = {von H{\"a}fen, Hajo and Krautwald, Clemens and Stolle, Jacob and Bung, Daniel Bernhard and Goseberg, Nils}, title = {Overland flow of broken solitary waves over a two-dimensional coastal plane}, series = {Coastal Engineering}, volume = {175}, journal = {Coastal Engineering}, number = {August}, publisher = {Elsevier}, address = {Amsterdam}, issn = {1872-7379}, doi = {10.1016/j.coastaleng.2022.104125}, pages = {14 Seiten}, year = {2022}, abstract = {Landslides, rock falls or related subaerial and subaqueous mass slides can generate devastating impulse waves in adjacent waterbodies. Such waves can occur in lakes and fjords, or due to glacier calving in bays or at steep ocean coastlines. Infrastructure and residential houses along coastlines of those waterbodies are often situated on low elevation terrain, and are potentially at risk from inundation. Impulse waves, running up a uniform slope and generating an overland flow over an initially dry adjacent horizontal plane, represent a frequently found scenario, which needs to be better understood for disaster planning and mitigation. This study presents a novel set of large-scale flume test focusing on solitary waves propagating over a 1:14.5 slope and breaking onto a horizontal section. Examining the characteristics of overland flow, this study gives, for the first time, insight into the fundamental process of overland flow of a broken solitary wave: its shape and celerity, as well as its momentum when wave breaking has taken place beforehand.}, language = {en} } @article{vonKnobelsdorfBrenkenhoffFrauenrathProthmannetal.2010, author = {von Knobelsdorf-Brenkenhoff, Florian and Frauenrath, Tobias and Prothmann, Marcel and Dieringer, Matthias A. and Hezel, Fabian and Renz, Wolfgang and Kretschel, Kerstin and Niendorf, Thoralf and Schulz-Menger, Jeanette}, title = {Cardiac chamber quantification using magnetic resonance imaging at 7 Tesla—a pilot study}, volume = {20}, publisher = {Springer}, address = {Berlin, Heidelberg}, issn = {0938-7994}, doi = {10.1007/s00330-010-1888-2}, pages = {2844 -- 2852}, year = {2010}, abstract = {Objectives Interest in cardiovascular magnetic resonance (CMR) at 7 T is motivated by the expected increase in spatial and temporal resolution, but the method is technically challenging. We examined the feasibility of cardiac chamber quantification at 7 T. Methods A stack of short axes covering the left ventricle was obtained in nine healthy male volunteers. At 1.5 T, steady-state free precession (SSFP) and fast gradient echo (FGRE) cine imaging with 7 mm slice thickness (STH) were used. At 7 T, FGRE with 7 mm and 4 mm STH were applied. End-diastolic volume, end-systolic volume, ejection fraction and mass were calculated. Results All 7 T examinations provided excellent blood/myocardium contrast for all slice directions. No significant difference was found regarding ejection fraction and cardiac volumes between SSFP at 1.5 T and FGRE at 7 T, while volumes obtained from FGRE at 1.5 T were underestimated. Cardiac mass derived from FGRE at 1.5 and 7 T was larger than obtained from SSFP at 1.5 T. Agreement of volumes and mass between SSFP at 1.5 T and FGRE improved for FGRE at 7 T when combined with an STH reduction to 4 mm. Conclusions This pilot study demonstrates that cardiac chamber quantification at 7 T using FGRE is feasible and agrees closely with SSFP at 1.5 T.}, language = {en} } @article{VorstFerreinLakemeyer2006, author = {Vorst, Phillip and Ferrein, Alexander and Lakemeyer, Gerhard}, title = {AllemaniACs3D team description}, pages = {1 -- 6}, year = {2006}, language = {en} } @article{VosLagemaatBarentszetal.2014, author = {Vos, E. K. and Lagemaat, M. W. and Barentsz, J. O. and F{\"u}tterer, J. J. and Zamecnik, P. and Roozen, H. and Orzada, S. and Bitz, Andreas and Maas, M. C. and Scheenen, T. W. J.}, title = {Image quality and cancer visibility of T2-weighted Magnetic Resonance Imaging of the prostate at 7 Tesla}, series = {European Radiology}, volume = {24}, journal = {European Radiology}, number = {8}, publisher = {Springer}, address = {Cham}, issn = {1432-1084}, doi = {10.1007/s00330-014-3234-6}, pages = {1950 -- 1958}, year = {2014}, abstract = {Objectives To assess the image quality of T2-weighted (T2w) magnetic resonance imaging of the prostate and the visibility of prostate cancer at 7 Tesla (T). Materials \& methods Seventeen prostate cancer patients underwent T2w imaging at 7T with only an external transmit/receive array coil. Three radiologists independently scored images for image quality, visibility of anatomical structures, and presence of artefacts. Krippendorff's alpha and weighted kappa statistics were used to assess inter-observer agreement. Visibility of prostate cancer lesions was assessed by directly linking the T2w images to the confirmed location of prostate cancer on histopathology. Results T2w imaging at 7T was achievable with 'satisfactory' (3/5) to 'good' (4/5) quality. Visibility of anatomical structures was predominantly scored as 'satisfactory' (3/5) and 'good' (4/5). If artefacts were present, they were mostly motion artefacts and, to a lesser extent, aliasing artefacts and noise. Krippendorff's analysis revealed an α = 0.44 between three readers for the overall image quality scores. Clinically significant cancer lesions in both peripheral zone and transition zone were visible at 7T. Conclusion T2w imaging with satisfactory to good quality can be routinely acquired, and cancer lesions were visible in patients with prostate cancer at 7T using only an external transmit/receive body array coil.}, language = {en} } @article{VuStaat2007, author = {Vu, Duc Khoi and Staat, Manfred}, title = {Shakedown analysis of structures made of materials with temperature-dependent yield stress}, series = {International Journal of Solids and Structures. 44 (2007), H. 13}, journal = {International Journal of Solids and Structures. 44 (2007), H. 13}, isbn = {0020-7683}, pages = {4524 -- 4540}, year = {2007}, language = {en} } @article{VuStaatTran2007, author = {Vu, Duc Khoi and Staat, Manfred and Tran, Ich Thinh}, title = {Analysis of pressure equipment by application of the primal-dual theory of shakedown}, series = {Communications in Numerical Methods in Engineering. 23 (2007), H. 3}, journal = {Communications in Numerical Methods in Engineering. 23 (2007), H. 3}, isbn = {1069-8299}, pages = {213 -- 225}, year = {2007}, language = {en} } @article{VuStaat2004, author = {Vu, Duc-Khoi and Staat, Manfred}, title = {An algorithm for shakedown analysis of structure with temperature dependent yield stress}, year = {2004}, abstract = {This work is an attempt to answer the question: How to use convex programming in shakedown analysis of structures made of materials with temperature-dependent properties. Based on recently established shakedown theorems and formulations, a dual relationship between upper and lower bounds of the shakedown limit load is found, an algorithmfor shakedown analysis is proposed. While the original problem is neither convex nor concave, the algorithm presented here has the advantage of employing convex programming tools.}, subject = {Einspielen }, language = {en} } @article{VoegeleGrajewskiGovorukhaetal.2020, author = {V{\"o}gele, Stefan and Grajewski, Matthias and Govorukha, Kristina and R{\"u}bbelke, Dirk}, title = {Challenges for the European steel industry: Analysis, possible consequences and impacts on sustainable development}, series = {Applied Energy}, volume = {264}, journal = {Applied Energy}, number = {Article number: 114633}, publisher = {Elsevier}, address = {Amsterdam}, issn = {0306-2619}, doi = {10.1016/j.apenergy.2020.114633}, year = {2020}, abstract = {The steel industry in the European Union (EU), important for the economy as a whole, faces various challenges. These are inter alia volatile prices for relevant input factors, uncertainties concerning the regulation of CO₂-emissions and market shocks caused by the recently introduced additional import duties in the US, which is an important sales market. We examine primary and secondary effects of these challenges on the steel industry in the EU and their impacts on European and global level. Developing and using a suitable meta-model, we analyze the competitiveness of key steel producing countries with respect to floor prices depending on selected cost factors and draw conclusions on the impacts in the trade of steel on emissions, energy demand, on the involvement of developing countries in the value chain as well on the need for innovations to avoid relocations of production. Hence, our study contributes to the assessment of sustainable industrial development, which is aimed by the Sustainability Development Goal "Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation countries". By applying information on country-specific Human Development Indexes (reflecting aspects of life expectancy, education, and per capita income), we show that relocating energy-intensive industries from the EU may not only increase global energy demand and CO₂-emissions, but may also be to the disadvantage of developing countries.}, language = {en} } @article{VoegeleJosyabhatlaBalletal.2023, author = {V{\"o}gele, Stefan and Josyabhatla, Vishnu Teja and Ball, Christopher and Rhoden, Imke and Grajewski, Matthias and R{\"u}bbelke, Dirk and Kuckshinrichs, Wilhelm}, title = {Robust assessment of energy scenarios from stakeholders' perspectives}, series = {Energy}, journal = {Energy}, number = {In Press, Article 128326}, publisher = {Elsevier}, address = {Amsterdam}, issn = {1873-6785 (Online)}, doi = {10.1016/j.energy.2023.128326}, year = {2023}, abstract = {Using scenarios is vital in identifying and specifying measures for successfully transforming the energy system. Such transformations can be particularly challenging and require the support of a broader set of stakeholders. Otherwise, there will be opposition in the form of reluctance to adopt the necessary technologies. Usually, processes for considering stakeholders' perspectives are very time-consuming and costly. In particular, there are uncertainties about how to deal with modifications in the scenarios. In principle, new consulting processes will be required. In our study, we show how multi-criteria decision analysis can be used to analyze stakeholders' attitudes toward transition paths. Since stakeholders differ regarding their preferences and time horizons, we employ a multi-criteria decision analysis approach to identify which stakeholders will support or oppose a transition path. We provide a flexible template for analyzing stakeholder preferences toward transition paths. This flexibility comes from the fact that our multi-criteria decision aid-based approach does not involve intensive empirical work with stakeholders. Instead, it involves subjecting assumptions to robustness analysis, which can help identify options to influence stakeholders' attitudes toward transitions.}, language = {en} } @article{VoegeleRuebbelkeGovorukhaetal.2019, author = {V{\"o}gele, Stefan and R{\"u}bbelke, Dirk and Govorukha, Kristina and Grajewski, Matthias}, title = {Socio-technical scenarios for energy-intensive industries: the future of steel production in Germany}, series = {Climatic Change}, journal = {Climatic Change}, publisher = {Springer}, address = {Berlin}, issn = {0165-0009}, doi = {10.1007/s10584-019-02366-0}, pages = {1 -- 16}, year = {2019}, language = {en} } @article{WackwitzBongaertsGoodmanetal.1999, author = {Wackwitz, B. and Bongaerts, Johannes and Goodman, S. D. and Unden, Gottfried}, title = {Growth phase-dependent regulation of nuoA-N expression in Escherichia coli K-12 by the Fis protein: upstream binding sites and bioenergetic significance}, series = {Molecular and general genetics : MGG}, volume = {Vol. 262}, journal = {Molecular and general genetics : MGG}, number = {Iss. 4 - 5}, issn = {1617-4623 (E-Journal); 1617-4615 (Print)}, pages = {876 -- 883}, year = {1999}, language = {en} } @article{WagnerDollSchoening2014, author = {Wagner, Patrick and Doll, Theodor and Sch{\"o}ning, Michael Josef}, title = {Engineering of functional interfaces / Patrick Wagner ; Theodor Doll ; Michael J. Sch{\"o}ning (eds.)}, series = {Physica status solidi (A) : Applications and materials science}, volume = {211}, journal = {Physica status solidi (A) : Applications and materials science}, number = {6}, publisher = {Wiley-VCH}, address = {Weinheim}, issn = {1521-396X (E-Book); 1862-6319 (E-Book); 0031-8965 (Print); 1862-6300 (Print)}, doi = {10.1002/pssa.201470241}, pages = {1339 -- 1339}, year = {2014}, language = {en} } @article{WagnerBegingRotteretal.2007, author = {Wagner, Torsten and Beging, Stefan and Rotter, L. and Poghossian, Arshak and Biselli, Manfred and Zang, Werner and Sch{\"o}ning, Michael Josef}, title = {Online-Messsysteme f{\"u}r die automatisierte Charakterisierung von feldeffektbasierten Biosensoren}, series = {8. Dresdner Sensor-Symposium : Sensoren f{\"u}r Umwelt, Klima und Sicherheit, Biosensoren und Biosysteme, Sensoren und Sensorsysteme f{\"u}r die Prozesstechnik, Trends in der Sensortechnik, Materialentwicklung f{\"u}r die Sensorik; 8. Dresdner Sensor-Symposium, 10. - 12. Dezember 2007, Dresden / Gerald Gerlach ... (Hg.)}, journal = {8. Dresdner Sensor-Symposium : Sensoren f{\"u}r Umwelt, Klima und Sicherheit, Biosensoren und Biosysteme, Sensoren und Sensorsysteme f{\"u}r die Prozesstechnik, Trends in der Sensortechnik, Materialentwicklung f{\"u}r die Sensorik; 8. Dresdner Sensor-Symposium, 10. - 12. Dezember 2007, Dresden / Gerald Gerlach ... (Hg.)}, publisher = {TUDpress, Verl. der Wissenschaften}, address = {Dresden}, isbn = {978-3-940046-45-1}, pages = {257 -- 260}, year = {2007}, language = {de} } @article{WagnerKloockSchoening2007, author = {Wagner, Torsten and Kloock, Joachim P. and Sch{\"o}ning, Michael Josef}, title = {Determination of cadmium concentration and pH value in aqueous solutions by means of a handheld light-addressable potentiometric sensor (LAPS) device}, series = {Electrochemical sensor analysis / edited by S. Alegret ...}, journal = {Electrochemical sensor analysis / edited by S. Alegret ...}, publisher = {Elsevier}, address = {Amsterdam}, isbn = {978-0-444-53133-9}, pages = {e35 -- e44}, year = {2007}, language = {en} } @article{WagnerMarisAckermannetal.2007, author = {Wagner, Torsten and Maris, Rob J. and Ackermann, Hans-Josef and Otto, Ralph and Beging, Stefan and Poghossian, Arshak and Sch{\"o}ning, Michael Josef}, title = {Handheld measurement device for field-effect sensor structures: Practical evaluation and limitations}, series = {Sensors and Actuators B: Chemical . 127 (2007), H. 1}, journal = {Sensors and Actuators B: Chemical . 127 (2007), H. 1}, isbn = {0925-4005}, pages = {217 -- 223}, year = {2007}, language = {en} } @article{WagnerMiyamotoWerneretal.2011, author = {Wagner, Torsten and Miyamoto, K. and Werner, Frederik and Sch{\"o}ning, Michael Josef and Yoshinobu, T.}, title = {Flexible electrochemical imaging with "zoom-in" functionality by using a new type of light-addressable potentiometric sensor}, publisher = {IEEE}, address = {New York}, pages = {2133 -- 2135}, year = {2011}, language = {en} } @article{WagnerMiyamotoWerneretal.2011, author = {Wagner, Torsten and Miyamoto, K. and Werner, Frederik and Sch{\"o}ning, Michael Josef and Yoshinobu, T.}, title = {Utilising Digital Micro-Mirror Device (DMD) as Scanning Light Source for Light-Addressable Potentiometric Sensors (LAPS)}, volume = {9}, number = {2}, publisher = {American Scientific Publishers}, address = {Stevenson Ranch, Calif.}, doi = {10.1166/sl.2011.1620}, pages = {812 -- 815}, year = {2011}, language = {en} } @article{WagnerMiyamotoSchoeningetal.2010, author = {Wagner, Torsten and Miyamoto, Ko-ichiro and Sch{\"o}ning, Michael Josef and Yoshinobu, Tatsuo}, title = {Novel combination of digital light processing (DLP) and light-addressable potentiometric sensors (LAPS) for flexible chemical imaging}, series = {Procedia Engineering. 5 (2010)}, journal = {Procedia Engineering. 5 (2010)}, isbn = {1877-7058}, pages = {520 -- 523}, year = {2010}, language = {en} } @article{WagnerMiyamotoShigiharaetal.2011, author = {Wagner, Torsten and Miyamoto, Ko-ichiro and Shigihara, Noriko and Sch{\"o}ning, Michael Josef and Yoshinobu, Tatsuo}, title = {Microfluidic systems with free definable sensor spots by an integrated light-addressable potentiometric sensor}, series = {Procedia Engineering. 25 (2011)}, journal = {Procedia Engineering. 25 (2011)}, publisher = {Elsevier}, address = {Amsterdam}, isbn = {1877-7058}, pages = {791 -- 794}, year = {2011}, language = {en} } @article{WagnerMolinaBisellietal.2007, author = {Wagner, Torsten and Molina, R. and Biselli, Manfred and Canzoneri, Michele and Schnitzler, Thomas and Yoshinobu, Tatsuo and Sch{\"o}ning, Michael Josef}, title = {A light-addressable potentiometric sensor system for fast, simultaneous and spatial detection of the metabolic activity of biological cells}, series = {Transducers '07 Eurosensors XXI : digest of technical papers ; the14th International Conference on Solid-State Sensors, Actuators and Microsystems, June 10-14, 2007, Lyon, France / Gilles Delapierre (Ed.)}, journal = {Transducers '07 Eurosensors XXI : digest of technical papers ; the14th International Conference on Solid-State Sensors, Actuators and Microsystems, June 10-14, 2007, Lyon, France / Gilles Delapierre (Ed.)}, publisher = {IEEE}, address = {Piscataway}, isbn = {1-4244-0841-5}, pages = {1107 -- 1110}, year = {2007}, language = {en} } @article{WagnerMolinaYoshinobuetal.2007, author = {Wagner, Torsten and Molina, Roberto and Yoshinobu, Tatsuo and Kloock, Joachim P. and Biselli, Manfred and Canzoneri, Michele and Schnitzler, Thomas and Sch{\"o}ning, Michael Josef}, title = {Handheld multi-channel LAPS device as a transducer platform for possible biological and chemical multi-sensor applications}, series = {Electrochimica Acta. 53 (2007), H. 2}, journal = {Electrochimica Acta. 53 (2007), H. 2}, isbn = {0013-4686}, pages = {305 -- 311}, year = {2007}, language = {en} } @article{WagnerRaoKloocketal.2006, author = {Wagner, Torsten and Rao, C. and Kloock, Joachim P. and Yoshinobu, T. and Otto, R. and Keusgen, M. and Sch{\"o}ning, Michael Josef}, title = {"LAPS Card"—A novel chip card-based light-addressable potentiometric sensor (LAPS)}, series = {Sensors and Actuators B: Chemical. 118 (2006), H. 1-2}, journal = {Sensors and Actuators B: Chemical. 118 (2006), H. 1-2}, isbn = {0925-4005}, pages = {33 -- 40}, year = {2006}, language = {en} } @article{WagnerRaoOttoetal.2005, author = {Wagner, Torsten and Rao, C. and Otto, R. and Yoshinobu, T. and Kloock, Joachim P. and Sch{\"o}ning, Michael Josef}, title = {Chipkarten-basierter Multikanal lichtadressierbarer potentiometrischer Sensor f{\"u}r analytische Anwendungen in fl{\"u}ssigen Medien}, series = {Neue Herausforderungen und Anwendungen in der Sensortechnik : 7. Dresdner Sensor-Symposium ; 12. - 14. Dezember 2005, Dresden / [Forschungsgesellschaft f{\"u}r Messtechnik, Sensorik und Medizintechnik e.V.]. Gerald Gerlach ... (Hg.)}, journal = {Neue Herausforderungen und Anwendungen in der Sensortechnik : 7. Dresdner Sensor-Symposium ; 12. - 14. Dezember 2005, Dresden / [Forschungsgesellschaft f{\"u}r Messtechnik, Sensorik und Medizintechnik e.V.]. Gerald Gerlach ... (Hg.)}, publisher = {TUDpress}, address = {Dresden}, isbn = {3-938863-29-3}, pages = {11 -- 14}, year = {2005}, language = {de} } @article{WagnerSchoening2007, author = {Wagner, Torsten and Sch{\"o}ning, Michael Josef}, title = {Light-addressable potentiometric sensors (LAPS): recent trends and applications}, series = {Electrochemical sensor analysis / edited by S. Alegret ...}, journal = {Electrochemical sensor analysis / edited by S. Alegret ...}, publisher = {Elsevier}, address = {Amsterdam}, isbn = {978-0-444-53053-0}, pages = {87 -- 128}, year = {2007}, language = {en} } @article{WagnerSchoeningOttoetal.2004, author = {Wagner, Torsten and Sch{\"o}ning, Michael Josef and Otto, R. and Yoshinobu, T.}, title = {A handheld 16 channel pen-type LAPS as a platform for (bio-)electrochemical sensing}, series = {Biomedizinische Technik. 49 (2004), H. 2}, journal = {Biomedizinische Technik. 49 (2004), H. 2}, isbn = {0932-4666}, pages = {996 -- 997}, year = {2004}, language = {en} } @article{WagnerShigiaharaMiyamotoetal.2012, author = {Wagner, Torsten and Shigiahara, N. and Miyamoto, K. and Suzurikawa, J. and Finger, F. and Sch{\"o}ning, Michael Josef and Yoshinobu, T.}, title = {Light-addressable Potentiometric Sensors and Light-addressable Electrodes as a Combined Sensor-and-manipulator Microsystem with High Flexibility}, series = {Procedia Engineering}, journal = {Procedia Engineering}, number = {47}, publisher = {Elsevier}, address = {Amsterdam}, issn = {1877-7058}, doi = {10.1016/j.proeng.2012.09.290}, pages = {890 -- 893}, year = {2012}, abstract = {This work describes the novel combination of the light-addressable electrode (LAE) and the light-addressable potentiometric sensor (LAPS) into a microsystem set-up. Both the LAE as well as the LAPS shares the principle of addressing the active spot by means of a light beam. This enables both systems to manipulate resp. to detect an analyte with a high spatial resolution. Hence, combining both principles into a single set-up enables the active stimulation e.g., by means of electrolysis and a simultaneous observation e.g., the response of an entrapped biological cell by detection of extracellular pH changes. The work will describe the principles of both technologies and the necessary steps to integrate them into a single set-up. Furthermore, examples of application and operation of such systems will be presented.}, language = {en} } @article{WagnerVornholtWerneretal.2016, author = {Wagner, Torsten and Vornholt, Wolfgang and Werner, Frederik and Yoshinobu, Tatsuo and Miyamoto, Ko-Ichiro and Keusgen, Michael and Sch{\"o}ning, Michael Josef}, title = {Light-addressable potentiometric sensor (LAPS) combined with magnetic beads for pharmaceutical screening}, series = {Physics in medicine}, volume = {2016}, journal = {Physics in medicine}, number = {1}, issn = {2352-4510}, doi = {10.1016/j.phmed.2016.03.001}, pages = {2 -- 7}, year = {2016}, abstract = {The light-addressable potentiometric sensor (LAPS) has the unique feature to address different regions of a sensor surface without the need of complex structures. Measurements at different locations on the sensor surface can be performed in a common analyte solution, which distinctly simplifies the fluidic set-up. However, the measurement in a single analyte chamber prevents the application of different drugs or different concentrations of a drug to each measurement spot at the same time as in the case of multi-reservoir-based set-ups. In this work, the authors designed a LAPS-based set-up for cell culture screening that utilises magnetic beads loaded with the endotoxin (lipopolysaccharides, LPS), to generate a spatially distributed gradient of analyte concentration. Different external magnetic fields can be adjusted to move the magnetic beads loaded with a specific drug within the measurement cell. By recording the metabolic activities of a cell layer cultured on top of the LAPS surface, this work shows the possibility to apply different concentrations of a sample along the LAPS measurement spots within a common analyte solution.}, language = {en} } @article{WagnerWernerMiyamotoetal.2009, author = {Wagner, Torsten and Werner, Frederik and Miyamoto, K. and Sch{\"o}ning, Michael Josef and Yoshinobu, T.}, title = {A high-density multi-point LAPS set-up using a VCSEL array and FPGA control}, series = {Procedia Chemistry. 1 (2009), H. 1}, journal = {Procedia Chemistry. 1 (2009), H. 1}, publisher = {Elsevier}, address = {Amsterdam}, isbn = {1876-6196}, pages = {1483 -- 1486}, year = {2009}, language = {en} } @article{WagnerWernerMiyamotoetal.2010, author = {Wagner, Torsten and Werner, Frederik and Miyamoto, Ko-ichiro and Ackermann, Hans-Josef and Yoshinobu, Tatsuo and Sch{\"o}ning, Michael Josef}, title = {FPGA-based LAPS device for the flexible design of sensing sites on functional interfaces}, series = {Physica Status Solidi (A). 207 (2010), H. 4}, journal = {Physica Status Solidi (A). 207 (2010), H. 4}, isbn = {1862-6300}, pages = {844 -- 849}, year = {2010}, language = {en} } @article{WagnerWernerMiyamotoetal.2012, author = {Wagner, Torsten and Werner, Frederik and Miyamoto, Ko-Ichiro and Sch{\"o}ning, Michael Josef and Yoshinobu, Tatsuo}, title = {Development and characterisation of a compact light-addressable potentiometric sensor (LAPS) based on the digital light processing (DLP) technology for flexible chemical imaging}, series = {Sensors and Actuators B: Chemical}, volume = {170}, journal = {Sensors and Actuators B: Chemical}, publisher = {Elsevier}, address = {Amsterdam}, issn = {0925-4005}, doi = {10.1016/j.snb.2010.12.003}, pages = {34 -- 39}, year = {2012}, abstract = {Chemical imaging systems allow the visualisation of the distribution of chemical species on the sensor surface. This work represents a new flexible approach to read out light-addressable potentiometric sensors (LAPS) with the help of a digital light processing (DLP) set-up. The DLP, known well for video projectors, consists of a mirror-array MEMS device, which allows fast and flexible generation of light patterns. With the help of these light patterns, the sensor surface of the LAPS device can be addressed. The DLP approach has several advantages compared to conventional LAPS set-ups, e.g., the spot size and the shape of the light pointer can be changed easily and no mechanical movement is necessary, which reduces the size of the set-up and increases the stability and speed of the measurement. In addition, the modulation frequency and intensity of the light beam are important parameters of the LAPS set-up. Within this work, the authors will discuss two different ways of light modulation by the DLP set-up, investigate the influence of different modulation frequencies and different light intensities as well as demonstrate the scanning capabilities of the new set-up by pH mapping on the sensor surface.}, language = {en} } @article{WagnerWernerMiyamotoetal.2011, author = {Wagner, Torsten and Werner, Frederik and Miyamoto, Ko-Ichiro and Sch{\"o}ning, Michael Josef and Yoshinobu, Tatsuo}, title = {A high-density multi-point LAPS set-up using a VCSEL array and FPGA control}, series = {Sensors and Actuators B: Chemical. 154 (2011), H. 2}, journal = {Sensors and Actuators B: Chemical. 154 (2011), H. 2}, publisher = {Elsevier}, address = {Amsterdam}, isbn = {1873-3077}, pages = {124 -- 128}, year = {2011}, language = {en} } @article{WagnerYoshinobuRaoetal.2005, author = {Wagner, Torsten and Yoshinobu, T. and Rao, C. and Otto, R. and Sch{\"o}ning, Michael Josef}, title = {„All-in-one" solid-state device based on a lightaddressable potentiometric sensor platform}, series = {Transducers '05 : the 13th International Conference on Solid-State Sensors, Actuators and Microsystems ; Seoul, Korea, [June 5 - 9, 2005] ; digest of technical papers / sponsored by Korean Sensors Society. Technical co-sponsors: IEEE Electron Devices Society}, journal = {Transducers '05 : the 13th International Conference on Solid-State Sensors, Actuators and Microsystems ; Seoul, Korea, [June 5 - 9, 2005] ; digest of technical papers / sponsored by Korean Sensors Society. Technical co-sponsors: IEEE Electron Devices Society}, publisher = {IEEE Operations Center}, address = {Piscataway, NJ}, isbn = {0-7803-83995-6}, pages = {1872 -- 1875}, year = {2005}, language = {en} } @article{Wahle2000, author = {Wahle, Michael}, title = {Auf sicheren F{\"u}ßen stehen : Entwicklung eines Maschinenlagers mit einem Federkern aus zelligem Polyurethan}, series = {Der Konstrukteur}, volume = {31}, journal = {Der Konstrukteur}, number = {6}, isbn = {0344-4570}, pages = {30 -- 32}, year = {2000}, language = {de} } @article{WahleWeber2002, author = {Wahle, Michael and Weber, M.}, title = {Simulationsmodell zur Darstellung der Eigenschaften von Fahrzeug-Stoßd{\"a}mpfern bei beliebiger dynamischer Belastung, Simulationsmodell f{\"u}r Stoßd{\"a}mpfer}, year = {2002}, language = {de} } @article{WahleWeber2001, author = {Wahle, Michael and Weber, M.}, title = {Zum Stand von Komponentenmodellen im Rahmen der Fahrzeugsimulation}, year = {2001}, language = {de} } @article{WaldvogelFreylerHelmetal.2023, author = {Waldvogel, Janice and Freyler, Kathrin and Helm, Michael and Monti, Elena and St{\"a}udle, Benjamin and Gollhofer, Albert and Narici, Marco V. and Ritzmann, Ramona and Albracht, Kirsten}, title = {Changes in gravity affect neuromuscular control, biomechanics, and muscle-tendon mechanics in energy storage and dissipation tasks}, series = {Journal of Applied Physiology}, volume = {134}, journal = {Journal of Applied Physiology}, number = {1}, publisher = {American Physiological Society}, address = {Bethesda, Md.}, issn = {1522-1601 (Onlineausgabe)}, doi = {10.1152/japplphysiol.00279.2022}, pages = {190 -- 202}, year = {2023}, abstract = {This study evaluates neuromechanical control and muscle-tendon interaction during energy storage and dissipation tasks in hypergravity. During parabolic flights, while 17 subjects performed drop jumps (DJs) and drop landings (DLs), electromyography (EMG) of the lower limb muscles was combined with in vivo fascicle dynamics of the gastrocnemius medialis, two-dimensional (2D) kinematics, and kinetics to measure and analyze changes in energy management. Comparisons were made between movement modalities executed in hypergravity (1.8 G) and gravity on ground (1 G). In 1.8 G, ankle dorsiflexion, knee joint flexion, and vertical center of mass (COM) displacement are lower in DJs than in DLs; within each movement modality, joint flexion amplitudes and COM displacement demonstrate higher values in 1.8 G than in 1 G. Concomitantly, negative peak ankle joint power, vertical ground reaction forces, and leg stiffness are similar between both movement modalities (1.8 G). In DJs, EMG activity in 1.8 G is lower during the COM deceleration phase than in 1 G, thus impairing quasi-isometric fascicle behavior. In DLs, EMG activity before and during the COM deceleration phase is higher, and fascicles are stretched less in 1.8 G than in 1 G. Compared with the situation in 1 G, highly task-specific neuromuscular activity is diminished in 1.8 G, resulting in fascicle lengthening in both movement modalities. Specifically, in DJs, a high magnitude of neuromuscular activity is impaired, resulting in altered energy storage. In contrast, in DLs, linear stiffening of the system due to higher neuromuscular activity combined with lower fascicle stretch enhances the buffering function of the tendon, and thus the capacity to safely dissipate energy.}, language = {en} } @article{WaldvogelRitzmannFreyleretal.2021, author = {Waldvogel, Janice and Ritzmann, Ramona and Freyler, Kathrin and Helm, Michael and Monti, Elena and Albracht, Kirsten and St{\"a}udle, Benjamin and Gollhofer, Albert and Narici, Marco}, title = {The Anticipation of Gravity in Human Ballistic Movement}, series = {Frontiers in Physiology}, journal = {Frontiers in Physiology}, publisher = {Frontiers}, address = {Lausanne}, issn = {1664-042X}, doi = {10.3389/fphys.2021.614060}, year = {2021}, abstract = {Stretch-shortening type actions are characterized by lengthening of the pre-activated muscle-tendon unit (MTU) in the eccentric phase immediately followed by muscle shortening. Under 1 g, pre-activity before and muscle activity after ground contact, scale muscle stiffness, which is crucial for the recoil properties of the MTU in the subsequent push-off. This study aimed to examine the neuro-mechanical coupling of the stretch-shortening cycle in response to gravity levels ranging from 0.1 to 2 g. During parabolic flights, 17 subjects performed drop jumps while electromyography (EMG) of the lower limb muscles was combined with ultrasound images of the gastrocnemius medialis, 2D kinematics and kinetics to depict changes in energy management and performance. Neuro-mechanical coupling in 1 g was characterized by high magnitudes of pre-activity and eccentric muscle activity allowing an isometric muscle behavior during ground contact. EMG during pre-activity and the concentric phase systematically increased from 0.1 to 1 g. Below 1 g the EMG in the eccentric phase was diminished, leading to muscle lengthening and reduced MTU stretches. Kinetic energy at take-off and performance were decreased compared to 1 g. Above 1 g, reduced EMG in the eccentric phase was accompanied by large MTU and muscle stretch, increased joint flexion amplitudes, energy loss and reduced performance. The energy outcome function established by linear mixed model reveals that the central nervous system regulates the extensor muscles phase- and load-specifically. In conclusion, neuro-mechanical coupling appears to be optimized in 1 g. Below 1 g, the energy outcome is compromised by reduced muscle stiffness. Above 1 g, loading progressively induces muscle lengthening, thus facilitating energy dissipation.}, language = {en} } @article{WallenbornRitz2014, author = {Wallenborn, Ramona and Ritz, Thomas}, title = {Mobilit{\"a}t miteinander teilen : st{\"a}dtisches eCarsharing in einer vernetzten Gesellschaft ; [vernetztes Fahren von morgen]}, series = {Neue Mobilit{\"a}t : das Magazin vom Bundesverband eMobilit{\"a}t}, volume = {5}, journal = {Neue Mobilit{\"a}t : das Magazin vom Bundesverband eMobilit{\"a}t}, number = {14 (Herbstausg.)}, publisher = {Bundesverband eMobilit{\"a}t BEM}, address = {Berlin}, issn = {2191-5636}, pages = {92 -- 95}, year = {2014}, language = {de} } @article{WallerBraunHojdisetal.2007, author = {Waller, Mark P. and Braun, Heiko and Hojdis, Nils and B{\"u}hl, Michael}, title = {Geometries of Second-Row Transition-Metal Complexes from Density-Functional Theory}, series = {Journal of Chemical Theory and Computation}, volume = {3}, journal = {Journal of Chemical Theory and Computation}, number = {6}, issn = {1549-9626}, doi = {10.1021/ct700178y}, pages = {2234 -- 2242}, year = {2007}, language = {en} } @article{WalterBorchert2002, author = {Walter, G. and Borchert, J{\"o}rg}, title = {Der Einsatz von Realoptionen in der Elektrizit{\"a}tswirtschaft}, series = {M \& A Review}, journal = {M \& A Review}, number = {4}, issn = {1616-0878}, pages = {198}, year = {2002}, language = {de} } @article{WaltherGerthsenCariusetal.1993, author = {Walther, T. and Gerthsen, D. and Carius, Reinhard and F{\"o}rster, Arnold}, title = {AlAs/GaAs Quantum well structures: Interface properties investigated by high-resolution transmission electron microscopy and photoluminescence spectroscopy / T. Walther ; D. Gerthsen ; R. Carius ; A. F{\"o}rster ...}, series = {Microscopy of semiconducting materials 1993 : proceedings of the Royal Microscopical Society Conference held at Oxford University, 5 - 8 April 1993 / ed. by A. G. Cullis ... - (Conference series / Institute of Physics ; 134)}, journal = {Microscopy of semiconducting materials 1993 : proceedings of the Royal Microscopical Society Conference held at Oxford University, 5 - 8 April 1993 / ed. by A. G. Cullis ... - (Conference series / Institute of Physics ; 134)}, publisher = {Institute of Physics}, address = {Bristol [u.a.]}, isbn = {0-7503-0290-9}, pages = {449 -- ff.}, year = {1993}, language = {en} } @article{WangKrauseBlocketal.2003, author = {Wang, J. and Krause, R. and Block, K. and Musameh, M. and Mulchandani, A. and Sch{\"o}ning, Michael Josef}, title = {Flow injection amperometric detection of OP nerve agents based on organophosphorus-hydrolase biosensor detector}, series = {Biosensors \& Bioelectronics. 18 (2003), H. 2-3}, journal = {Biosensors \& Bioelectronics. 18 (2003), H. 2-3}, isbn = {0956-5663}, pages = {255 -- 260}, year = {2003}, language = {en} } @article{WangAnikFrohberg1987, author = {Wang, Mao and Anik, Sabri and Frohberg, Martin G.}, title = {Thermodynamics of oxygen in the lead-antimony system at 1173 K}, series = {Erzmetall : Rohstoffgewinnung, Verarbeitung, Recycling, Umwelttechnik}, volume = {40}, journal = {Erzmetall : Rohstoffgewinnung, Verarbeitung, Recycling, Umwelttechnik}, number = {6}, issn = {0044-2658}, pages = {316 -- 319}, year = {1987}, language = {en} } @article{WangAnikFrohberg1988, author = {Wang, Mao and Anik, Sabri and Frohberg, Martin G.}, title = {Experiments on the electrochemical determination of the sulphur activities in the system copper-silver at 1200°C}, series = {Zeitschrift f{\"u}r Metallkunde}, volume = {79}, journal = {Zeitschrift f{\"u}r Metallkunde}, number = {5}, issn = {0044-3093}, pages = {336 -- 339}, year = {1988}, language = {en} } @article{WangDruckenmuellerElbersetal.2014, author = {Wang, Ren-Qi and Druckenm{\"u}ller, Katharina and Elbers, Gereon and Guenther, Klaus and Crou{\´e}, Jean-Philippe}, title = {Analysis of aquatic-phase natural organic matter by optimized LDI-MS method}, series = {Journal of mass spectrometry}, volume = {49}, journal = {Journal of mass spectrometry}, number = {2}, publisher = {Wiley}, address = {Bognor Regis}, issn = {1096-9888}, doi = {10.1002/jms.3321}, pages = {154 -- 160}, year = {2014}, abstract = {The composition and physiochemical properties of aquatic-phase natural organic matter (NOM) are most important problems for both environmental studies and water industry. Laser desorption/ionization (LDI) mass spectrometry facilitated successful examinations of NOM, as humic and fulvic acids in NOM are readily ionized by the nitrogen laser. In this study, hydrophobic NOMs (HPO NOMs) from river, reservoir and waste water were characterized by this technique. The effect of analytical variables like concentration, solvent composition and laser energy was investigated. The exact masses of small molecular NOM moieties in the range of 200-1200 m/z were determined in reflectron mode. In addition, spectra of post-source-decay experiments in this range showed that some compounds from different natural NOMs had the same fragmental ions. In the large mass range of 1200-15 000 Da, macromolecules and their aggregates were found in HPO NOMs from natural waters. Highly humic HPO exhibited mass peaks larger than 8000 Da. On the other hand, the waste water and reservoir water mainly had relatively smaller molecules of about 2000 Da. The LDI-MS measurements indicated that highly humic river waters were able to form large aggregates and membrane foulants, while the HPO NOMs from waste water and reservoir water were unlikely to form large aggregates. Copyright © 2014 John Wiley \& Sons, Ltd.}, language = {en} } @article{WardoyoNoorElbersetal.2020, author = {Wardoyo, Arinto Y.P. and Noor, Johan A.E. and Elbers, Gereon and Schmitz, Sandra and Flaig, Sascha T. and Budianto, Arif}, title = {Characterizing volcanic ash elements from the 2015 eruptions of bromo and raung volcanoes, Indonesia}, series = {Polish Journal of Environmental Studies}, volume = {29}, journal = {Polish Journal of Environmental Studies}, number = {2}, publisher = {HARD}, address = {Olsztyn}, issn = {2083-5906}, doi = {10.15244/pjoes/99101}, pages = {1899 -- 1907}, year = {2020}, abstract = {The volcanic eruptions of Mt. Bromo and Mt. Raung in East Java, Indonesia, in 2015 perturbed volcanic materials and affected surface-layer air quality at surrounding locations. During the episodes, the volcanic ash from the eruptions influenced visibility, traffic accidents, flight schedules, and human health. In this research, the volcanic ash particles were collected and characterized by relying on the detail of physical observation. We performed an assessment of the volcanic ash elements to characterize the volcanic ash using two different methods which are aqua regia extracts followed by MP-AES and XRF laboratory test of bulk samples. The analysis results showed that the volcanic ash was mixed of many materials, such as Al, Si, P, K, Ca, Ti, V, Cr, Mn, Fe, Ni, and others. Fe, Si, Ca, and Al were found as the major elements, while the others were the trace elements Ba, Cr, Cu, Mn, P, Mn, Ni, Zn, Sb, Sr, and V with the minor concentrations. XRF analyses showed that Fe dominated the elements of the volcanic ash. The XRF analysis showed that Fe was at 35.40\% in Bromo and 43.00\% in Raung of the detected elements in bulk material. The results of aqua regia extracts analyzed by MP-AES were 1.80\% and 1.70\% of Fe element for Bromo and Raung volcanoes, respectively.}, language = {en} } @article{WarerkarSchmitzGoettscheetal.2007, author = {Warerkar, Shashikant and Schmitz, Stefan and G{\"o}ttsche, Joachim and Hoffschmidt, Bernhard}, title = {Wirtschaftlich und flexibel : Luft-Sand-W{\"a}rme{\"u}bertrager f{\"u}r die Energiespeicherung bei Temperaturen bis 800 °C}, series = {Verfahrenstechnik. 41 (2007), H. 4}, journal = {Verfahrenstechnik. 41 (2007), H. 4}, isbn = {0175-5315}, pages = {72 -- 73}, year = {2007}, language = {de} } @article{WarerkarSchmitzGoettscheetal.2011, author = {Warerkar, Shashikant and Schmitz, Stefan and G{\"o}ttsche, Joachim and Hoffschmidt, Bernhard and Reißel, Martin and Tamme, Rainer}, title = {Air-Sand Heat Exchanger for High-Temperature Storage}, series = {Journal of Solar Energy Engineering. 133 (2011), H. 2}, journal = {Journal of Solar Energy Engineering. 133 (2011), H. 2}, publisher = {ASME}, address = {New York}, isbn = {0199-6231}, pages = {021010}, year = {2011}, language = {en} } @article{WarmerWagnerSchoeningetal.2015, author = {Warmer, Johannes and Wagner, Patrick and Sch{\"o}ning, Michael Josef and Kaul, Peter}, title = {Detection of triacetone triperoxide using temperature cycled metal-oxide semiconductor gas sensors}, series = {Physica status solidi (a)}, volume = {212}, journal = {Physica status solidi (a)}, number = {6}, publisher = {Wiley-VCH}, address = {Weinheim}, issn = {1862-6319}, doi = {10.1002/pssa.201431882}, pages = {1289 -- 1298}, year = {2015}, language = {en} } @article{Weber2001, author = {Weber, Hans-Joachim}, title = {Verbundforschungsprojekt Multimediale 3D-Visualisierung der Herzmuskelerregung}, series = {Intelligente, innovative Produktentwicklung f{\"u}r die industrielle Praxis. Stenzel, Horst [Hrsg.]}, journal = {Intelligente, innovative Produktentwicklung f{\"u}r die industrielle Praxis. Stenzel, Horst [Hrsg.]}, publisher = {Forschungverbund Multimedia an Fachhochschulen}, address = {K{\"o}ln}, pages = {99 -- 112}, year = {2001}, language = {de} }