TY - CHAP A1 - Schneider, Andreas A1 - Chochollek, Julia A1 - Nierhoff, Thomas ED - Weeber, Arthur T1 - Advanced Determination of Temperature Coefficients of Photovoltaic Modules by Field Measurements T2 - SiliconPV 2023, 13th International Conference on Crystalline Silicon Photovoltaics : Proceedings N2 - Abstract In this work data from outdoor measurements, acquired over the course of up to three years on commercially available solar panels, is used to determine the temperature coefficients and compare these to the information as stated by the producer in the data sheets. A program developed in MatLab App Designer allows to import the electrical and ambient measurement data. Filter algorithms for solar irradiance narrow the irradiance level down to ~1000 W/m2 before linear regression methods are applied to obtain the temperature coefficients. A repeatability investigation proves the accuracy of the determined temperature coefficients which are in good agreement to the supplier specification if the specified values for power are not larger than -0.3%/K. Further optimization is achieved by applying wind filter techniques and days with clear sky condition. With the big (measurement) data on hand it was possible to determine the change of the temperature coefficients for varying irradiance. As stated in literature we see an increase of the temperature coefficient of voltage and a decline for the temperature coefficient of power with increasing irradiance. KW - Solar modules KW - Temperature coefficients KW - Field measurement Y1 - 2023 U6 - https://doi.org/10.52825/siliconpv.v1i.905 SN - 2940-2123 SP - 1 EP - 8 PB - TIB ER - TY - GEN A1 - Stueckenschneider, Kai A1 - Merz, J. A1 - Zielesny, Achim A1 - Schembecker, Gerhard T1 - Adsorption von Aminosäuren an einen Zeolithen vom Typ MFI: Computerunterstützte und experimentelle Ergebnisse T2 - Chemie Ingenieur Technik Y1 - 2012 U6 - https://doi.org/10.1002/cite.201250474 SN - 1522-2640 VL - 84 IS - 8 SP - 1413 ER - TY - JOUR A1 - Stueckenschneider, Kai A1 - Zielesny, Achim A1 - Schembecker, Gerhard T1 - Adsorption of amino acids on MFI-type zeolite: DFT calculations and experimental results JF - Journal of Cheminformatics Y1 - 2012 U6 - https://doi.org/10.1186/1758-2946-4-S1-P38 SN - 1758-2946 VL - 4 IS - Suppl 1 SP - P38 ER - TY - CHAP A1 - Stueckenschneider, Kai A1 - Zielesny, Achim A1 - Merz, J. A1 - Schembecker, Gerhard T1 - Adsorption of amino acids in MFI-type zeolite: a computational and experimental study T2 - Konferenz: 15th European Congress on Biotechnology. 23.-26. September 2012 in Istanbul, Türkei Y1 - 2012 ER - TY - CHAP A1 - Stueckenschneider, Kai A1 - Zielesny, Achim A1 - Schembecker, Gerhard T1 - Adsorption of Alanine and Phenylalanine on MFI-type Zeolite: DFT Calculations and Experimental Results T2 - Konferenz: 26th Molecular Modelling Workshop 2012. 12.-14. März 2012 in Erlangen Y1 - 2012 ER - TY - JOUR A1 - Lehnert, Michael A1 - Gorbahn, Miriam A1 - Rosin, Christopher A1 - Klein, Marcus A1 - Köper, Ingo A1 - Al-Nawas, Bilal A1 - Knoll, Wolfgang A1 - Veith, Michael T1 - Adsorption Conformation Behavior of Biotinylated Fibronectin on Streptavidin-Modified TiOx Surfaces Studied by SPR and AFM JF - Langmuir N2 - It is well-known that protein-modified implant surfaces such as TiO2 show a higher bioconductivity. Fibronectin is a glycoprotein from the extracellular matrix (ECM) with a major role in cell adhesion. It can be applied on titanium oxide surfaces to accelerate implant integration. Not only the surface concentration but also the presentation of the protein plays an important role for the cellular response. We were able to show that TiOX surfaces modified with biotinylated fibronectin adsorbed on a streptavidin-silane self-assembly multilayer system are more effective regarding osteoblast adhesion than surfaces modified with nonspecifically bound fibronectin. The adsorption and conformation behavior of biotinylated and nonbiotinylated (native) fibronectin was studied by surface plasmon resonance (SPR) spectroscopy and atomic force microscopy (AFM). Imaging of the protein modification revealed that fibronectin adopts different conformations on nonmodified compared to streptavidin-modified TiOX surfaces. This conformational change of biotinylated fibronectin on the streptavidin monolayer delivers a fibronectin structure similar to the conformation inside the ECM and therefore explains the higher cell affinity for these surfaces. Y1 - 2011 U6 - https://doi.org/10.1021/la200908h SN - 1520-5827 SN - 0743-7463 VL - 27 IS - 12 SP - 7743 EP - 7751 PB - ACS Publishing CY - Washnigton DC ER - TY - JOUR A1 - Silber, David A1 - Kowalski, Piotr M. A1 - Traeger, Franziska A1 - Buchholz, Maria A1 - Bebensee, Fabian A1 - Meyer, Bernd A1 - Wöll, Christof T1 - Adsorbate-induced lifting of substrate relaxation is a general mechanism governing titania surface chemistry JF - Nature Communications N2 - Under ambient conditions, almost all metals are coated by an oxide. These coatings, the result of a chemical reaction, are not passive. Many of them bind, activate and modify adsorbed molecules, processes that are exploited, for example, in heterogeneous catalysis and photochemistry. Here we report an effect of general importance that governs the bonding, structure formation and dissociation of molecules on oxidic substrates. For a specific example, methanol adsorbed on the rutile TiO2(110) single crystal surface, we demonstrate by using a combination of experimental and theoretical techniques that strongly bonding adsorbates can lift surface relaxations beyond their adsorption site, which leads to a sig- nificant substrate-mediated interaction between adsorbates. The result is a complex super- structure consisting of pairs of methanol molecules and unoccupied adsorption sites. Infrared spectroscopy reveals that the paired methanol molecules remain intact and do not depro- tonate on the defect-free terraces of the rutile TiO2(110) surface. Y1 - 2016 U6 - https://doi.org/doi.org/10.1038/ncomms12888 VL - 7 SP - 12888 ER - TY - JOUR A1 - Greitens, Jan T1 - Adolf Weber's Munich School of Economics and Its Influence on the Early Bundesbank: The Example of Bernhard Benning JF - History of Political Economy N2 - This article analyses the early years of the history of the Bundesbank from a history of economic thought perspective. The study uses the example of Bernhard Benning, who headed the Economics Department of the Reichs-Kredit-Gesellschaft, one of the major banks owned by the German Reich during the National Socialist era. After the war Benning was appointed a member of the board of directors of the Deutsche Bundesbank for twenty-two years. As a student of Adolf Weber and his Munich school of economics, Benning's views were shaped by classical liberal rather than ordoliberal ideas. His legitimacy in postwar Germany stemmed from his public opposition to war financing and warnings about inflation during the Donner-Benning Debate of 1942–43. In this tradition, the early Bundesbank was Weberian rather than ordoliberal, so, for instance, fixed exchange rates were favored, and a strong business and investment perspective was adopted. KW - Bundesbank KW - Adolf Weber KW - ordoliberalism KW - money KW - inflation Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1010-opus4-46903 VL - 2025 IS - 57(2) SP - 279 EP - 305 PB - Duke University Press CY - Durham, NC ER - TY - JOUR A1 - Meyer, Manfred A1 - Balsam, Markus A1 - O'Keeffe, Arlo A1 - Schlüter, Christian T1 - ADMOTIONAL: Towards personalized online ads JF - International journal of computer science & applications (IJCSA) Y1 - 2011 SN - 0972-9038 VL - 8 IS - 2 SP - 59 EP - 80 ER - TY - JOUR A1 - Kronhardt, Kirill A1 - Rübner, Stephan A1 - Pascher, Max A1 - Goldau, Felix Ferdinand A1 - Frese, Udo A1 - Gerken, Jens T1 - Adapt or Perish? Exploring the Effectiveness of Adaptive DoF Control Interaction Methods for Assistive Robot Arms JF - Technologies N2 - Robot arms are one of many assistive technologies used by people with motor impairments. Assistive robot arms can allow people to perform activities of daily living (ADL) involving grasping and manipulating objects in their environment without the assistance of caregivers. Suitable input devices (e.g., joysticks) mostly have two Degrees of Freedom (DoF), while most assistive robot arms have six or more. This results in time-consuming and cognitively demanding mode switches to change the mapping of DoFs to control the robot. One option to decrease the difficulty of controlling a high-DoF assistive robot arm using a low-DoF input device is to assign different combinations of movement-DoFs to the device’s input DoFs depending on the current situation (adaptive control). To explore this method of control, we designed two adaptive control methods for a realistic virtual 3D environment. We evaluated our methods against a commonly used non-adaptive control method that requires the user to switch controls manually. This was conducted in a simulated remote study that used Virtual Reality and involved 39 non-disabled participants. Our results show that the number of mode switches necessary to complete a simple pick-and-place task decreases significantl when using an adaptive control type. In contrast, the task completion time and workload stay the same. A thematic analysis of qualitative feedback of our participants suggests that a longer period of training could further improve the performance of adaptive control methods. KW - assistive robotics KW - human robot interaction KW - shared user control KW - Augmented reality KW - visual cues KW - Erweiterte Realität Y1 - 2022 U6 - https://doi.org/10.3390/technologies10010030 VL - 10.2022 IS - 1 PB - MDPI CY - Basel ER - TY - JOUR A1 - Walter, Johann T1 - Adam Tooze. Crashed – Wie zehn Jahre Finanzkrise die Welt verändert haben JF - Zeitschrift für Sozialökonomie N2 - Rezension zu Tooze, J. Adam: Crashed. Wie zehn Jahre Finanzkrise die Welt verändert haben, Bonn: Bundeszentrale für politische Bildung, 2019 ISBN 978-3-7425-0317-6 Y1 - 2019 UR - https://www.sozialoekonomie-online.de/ SN - 0721-0752 VL - 56 IS - 200 SP - 80 EP - 82 ER - TY - JOUR A1 - Löffler, Markus Jan A1 - Siaenen, Thorbjörn A1 - Schneider, Markus A1 - Zacharias, Peter T1 - Actively Controlling the Muzzle Velocity of a Railgun JF - IEEE Transactions on Plasma Science KW - Muzzle Velocity KW - Railgun Y1 - 2013 VL - 2013 IS - Vol. 41 Issue: 5 ER - TY - JOUR A1 - Lehner, Franz T1 - Abstand zwischen Einkommensgruppen wächst deutlich JF - WAZ Y1 - 2007 IS - 298 SP - WBH-3 ER - TY - JOUR A1 - Böckenholt, Ingo A1 - Frohne, Julia A1 - Belch, Theresa A1 - Eikenbusch, Julia T1 - Absolventen 2015 unter die Lupe genommen: Ziele, Wertvorstellungen und Karriereorientierung der Generation Y JF - Research Journal Y1 - 2015 UR - https://www.ism.de/images/downloads/Research_Journal_1_2015.pdf VL - 2 IS - 1 SP - 57 EP - 79 ER - TY - JOUR A1 - Wienbracke, Mike T1 - Abschöpfung von Überschusserlösen nach dem StromPBG ist verfassungskonform : Anmerkungen zu BVerfG, Urteil vom 28.11.2024 – 1 BvR 460/23, 1 BvR 611/23 JF - Gesellschafts- und Wirtschaftsrecht (GWR) Y1 - 2025 SN - 1868-1816 IS - 6 SP - 95 EP - 95 PB - Beck CY - München ER - TY - JOUR A1 - Wienbracke, Mike T1 - Abschluss der Reform des Widerspruchsverfahrens in NRW JF - NWVBl Y1 - 2015 SP - 248 EP - 252 ER - TY - JOUR A1 - Pohlmann, Norbert A1 - Hertlein, Markus A1 - Manaras, Pascal T1 - Abschied vom Passwort. Authentifikation für ein gereiftes Internet JF - IT-Sicherheit - Management und Praxis Y1 - 2015 UR - https://norbert-pohlmann.com/app/uploads/2016/01/342-Abschied-vom-Passwort-%E2%80%93-Authentifikation-f%C3%BCr-ein-gereiftes-Internet-Prof.-Norbert-Pohlmann.pdf IS - 6 SP - 50 EP - 54 ER - TY - JOUR A1 - Albrecht, Achim T1 - Abschaffung der WLAN-Störerhaftung - eine Aufführung in mehreren Akten JF - Das Recht der Wirtschaft - RdW. Steuer- und Rechtsfragen in Kurzberichten Y1 - 2017 SN - 0342-8869 VL - 70 IS - 15 SP - 465ff. ER - TY - JOUR A1 - Pinger, Thomas A1 - Brand, Marco A1 - Grothe, Sonja A1 - Marginean, Gabriela T1 - Abrasive Wear Behavior of Batch Hot-Dip Galvanized Coatings JF - Materials (Special Issue Metal Coatings for Wear and Corrosion Applications (Second Edition)) N2 - In recent decades, batch hot-dip galvanized (HDG) steel has proven itself in practical applications due to the good corrosion resistance of its components. Despite the importance of the mechanical-load-bearing capacity of these coatings, the wear behavior has, so far, only been investigated very sporadically and not systematically, so a quantification of the wear behavior and statements on the mechanisms are vague. Therefore, two body wear tests with bonded abrasive grain were carried out. Varying the friction rolls, load, and total number of cycles, the wear behavior was investigated. The mass loss and the layer thickness reduction were measured at different intervals. After the test, the microstructure in the cross- section and the hardness according to Vickers (0.01 HV) were evaluated. The results showed that the wear behavior of HDG coatings against abrasive loads can be characterized with the selected test conditions. Initially, the applied load removed the soft η-phase. As the total number of cycles increases, the η- and ζ-phases deform plastically, resulting in a lower mass reduction compared to that expected from the measured layer thickness. The characteristic structure of a batch HDG coating with hard intermetallic Zn-Fe phases and an outer pure zinc phase has demonstrated effective resistance to abrasion. KW - batch hot-dip galvanizing KW - wear behavior KW - abrasion KW - zinc KW - coating Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1010-opus4-45841 SN - 1996-1944 VL - 2024 IS - 17 (7) PB - MDPI ER - TY - CHAP A1 - Sui, Li A1 - Dietrich, Jens A1 - Heinrich, Eva A1 - Meyer, Manfred T1 - A Web-Based Environment to Teach Introductory Programming based on a Bi-Directional Layered Notional Machine T2 - Konferenz: 21st Annual Conference on Innovation and Technology in Computer Science Education, 11.-13. Juli 2016 in Arequipa (Peru) Y1 - 2016 ER - TY - CHAP A1 - Werner, Jürgen A1 - Brinck, Heinrich ED - Leondes, Cornelius T. T1 - A three-dimensional vascular model and its application to the determination of the spatial variations in the arterial, venous and tissue temperature distribution T2 - Biomechanical Systems. Techniques and Applications, Volume IV: Biofluid Methods in Vascular and Pulmonary Systems Y1 - 2000 SN - 0-8493-9049-4 SP - 6-1 PB - CRC Press CY - Boca Raton, Fla. ER - TY - CHAP A1 - Urban, Tobias A1 - Tatang, Dennis A1 - Degeling, Martin A1 - Holz, Thorsten A1 - Pohlmann, Norbert T1 - A Study on Subject Data Access in Online Advertising after the GDPR T2 - Konferenz: 14th DPM International Workshop on Data Privacy Management, 26. September 2019 in Luxemburg Y1 - 2019 UR - https://norbert-pohlmann.com/wp-content/uploads/2019/08/398-A-Study-on-Subject-Data-Access-in-Online-Advertising-after-the-GDPR-Prof.-Norbert-Pohlmann-1.pdf ER - TY - CHAP A1 - Schneider, Andreas A1 - Chochollek, Julia A1 - Nierhoff, Thomas ED - Weeber, Arthur T1 - A Simple Approach for Module Temperature and Power Prediction T2 - SiliconPV 2023, 13th International Conference on Crystalline Silicon Photovoltaics : Proceedings N2 - In this work a mathematical approach to calculate solar panel temperature based on measured irradiance, temperature and wind speed is applied. With the calculated module temperature, the electrical solar module characteristics is determined. A program developed in MatLab App Designer allows to import measurement data from a weather station and calculates the module temperature based on the mathematical NOCT and stationary approach with a time step between the measurements of 5 minutes. Three commercially available solar panels with different cell and interconnection technologies are used for the verification of the established models. The results show a strong correlation between the measured and by the stationary model predicted module temperature with a coefficient of determination R2 close to 1 and a root mean square deviation (RMSE) of ≤ 2.5 K for a time period of three months. Based on the predicted temperature, measured irradiance in module plane and specific module information the program models the electrical data as time series in 5-minute steps. Predicted to measured power for a time period of three months shows a linear correlation with an R2 of 0.99 and a mean absolute error (MAE) of 3.5, 2.7 and 4.8 for module ID 1, 2 and 3. The calculated energy (exemplarily for module ID 2) based on the measured, calculated by the NOCT and stationary model for this time period is 118.4 kWh, resp. 116.7 kWh and 117.8 kWh. This is equivalent to an uncertainty of 1.4% for the NOCT and 0.5% for the stationary model. KW - Solar modules KW - Performance prediction KW - Field measurement Y1 - 2023 U6 - https://doi.org/10.52825/siliconpv.v1i.904 SN - 2940-2123 SP - 1 EP - 8 PB - TIB ER - TY - CHAP A1 - Cagnazzo, Matteo A1 - Wegner, Patrick A1 - Pohlmann, Norbert ED - Linnhoff-Popien, Claudia ED - Schneider, Ralf ED - Zaddach, Michael T1 - A Secure and Efficient Communication Tool T2 - Digital marketplaces unleashed Y1 - 2017 SN - 978-3-662-49274-1 SP - 787 EP - 795 PB - Springer CY - Berlin, Heidelberg ER - TY - CHAP A1 - Wöhle, Lukas A1 - Miller, Stanislaw A1 - Gerken, Jens A1 - Gebhard, Marion T1 - A Robust Interface for Head Motion based Control of a Robot Arm using MARG and Visual Sensors T2 - 2018 IEEE International Symposium on Medical Measurements and Applications. June 11-13, 2018. Rome. 2018 symposium proceedings N2 - Head-controlled human machine interfaces have gained popularity over the past years, especially in the restoration of the autonomy of severely disabled people, like tetraplegics. These interfaces need to be reliable and robust regarding the environmental conditions to guarantee safety of the user and enable a direct interaction between a human and a machine. This paper presents a hybrid MARG and visual sensor system for head orientation estimation which is in this case used to teleoperate a robotic arm. The system contains a Magnetic Angular Rate Gravity (MARG)-sensor and a Tobii eye tracker 4C. A MARG sensor consists of tri-axis accelerometer, gyroscope as well as a magnetometer which enable a complete measurement of orientation relative to the direction of gravity and magnetic field of the earth. The tri-axis magnetometer is sensitive to external magnetic fields which result in incorrect orientation estimation from the sensor fusion process. In this work the Tobii eye tracker 4C is used to increase head orientation estimation because it also features head tracking even though it is commonly used for eye tracking. This type of visual sensor does not suffer magnetic drift. However, it computes orientation data only, if a user is detectable. Within this work a state machine is presented which enables data fusion of the MARG and visual sensor to improve orientation estimation. The fusion of the orientation data of MARG and visual sensors enables a robust interface, which is immune against external magnetic fields. Therefore, it increases the safety of the human machine interaction. KW - sensor fusion KW - hybrid sensor system KW - Kalman filter KW - state machine KW - Zustandsmaschine Y1 - 2018 SN - 978-1-5386-3392-2 U6 - https://doi.org/10.1109/MeMeA.2018.8438699 ER - TY - JOUR A1 - Rajan, Kohulan A1 - Brinkhaus, Henning Otto A1 - Zielesny, Achim A1 - Steinbeck, Christoph T1 - A review of optical chemical structure recognition tools JF - Journal of Cheminformatics Y1 - 2020 U6 - https://doi.org/10.1186/s13321-020-00465-0 IS - 12 SP - 603 ER - TY - JOUR A1 - Bertsch, Thomas A1 - Melzer, Andreas A1 - Zylka, Waldemar A1 - Schaefers, Gregor A1 - Busch, Martin T1 - A prototype of an expandable active MRI stent (aMRIs) JF - International Congress Series Y1 - 2001 U6 - https://doi.org/10.1016/S0531-5131(01)00215-1 VL - 1230 SP - 1088 EP - 1093 ER - TY - JOUR A1 - Koch, Christian A1 - Schaefers, Gregor A1 - Zylka, Waldemar T1 - A novel phantom design to reduce thermal losses during radio frequency (RF) induced heating testing according to ASTM F2182-09 standard JF - ISRMRM - Proceedings of the International Society for Magnetic Resonance in Medicine Y1 - 2011 UR - https://cds.ismrm.org/protected/11MProceedings/files/3775.pdf SN - 1065-9889 VL - 19 SP - 3775 ER - TY - CHAP A1 - Wirkert, Florian Josef A1 - Roth, Jeffrey A1 - Rost, Ulrich A1 - Brodmann, Michael ED - Schulz, Detlef T1 - A novel PEM electrolysis system with dynamic hydraulic compression for an optimized high-pressure operation T2 - NEIS Conference 2016. Nachhaltige Energieversorgung und Integration von Speichern N2 - In this experimental work we present a novel electrolyzer system for the production of hydrogen and oxygen at high pressure levels without an additional mechanical compressor. Due to its control strategies, the operation conditions for this electrolyzer can be kept optimal for each load situation of the system. Furthermore, the novel system design allows for dynamic long-term operation as well as for easy maintainability. Therefore, the device meets the requirements for prospective power-to-gas applications, especially, in order to store excess energy from renewable sources. A laboratory scale device has been developed and high-pressure operation was validated. We also studied the long-term stability of the system by applying dynamic load cycles with load changes every 30 sec. After 80 h of operation the used membrane electrode assembly (MEA) was investigated by means of SEM, EDX and XRD analysis. KW - PEM Electrolysis KW - Hydrogen KW - Hydraulic Compression KW - High Pressure Y1 - 2016 SN - 978-3-658-15028-0 SP - 169 EP - 174 PB - Springer Vieweg CY - Wiesbaden ET - 1 ER - TY - CHAP A1 - Rost, Ulrich A1 - Wirkert, Florian Josef A1 - Brodmann, Michael ED - Schulz, Detlef T1 - A novel PEM Electrolysis System with Dynamic Hydraulic Compression for an Optimized High-pressure Operation T2 - Nachhaltige Energieversorgung und Integration von Speichern. NEIS Conference 2016 = Sustainable energy supply and energy storage systems Y1 - 2017 SN - 978-3-658-15028-0 U6 - https://doi.org/10.1007/978-3-658-15029-7 SP - 169 EP - 174 PB - Springer CY - Wiesbaden ER - TY - JOUR A1 - Rost, Ulrich A1 - Wirkert, Florian Josef A1 - Roth, Jeffrey A1 - Brodmann, Michael A1 - Stiber, Svenja A1 - Saul Gago, Aldo A1 - Friedrich, Kaspar Andreas T1 - A novel advanced test system for polymer electrolyte membrane water electrolysis based on hydraulic cell compression JF - Fuel Cells, Band 22, Ausgabe 6 N2 - In this work, a novel polymer electrolyte membrane water electrolyzer (PEMWE) test cell based on hydraulic single-cell compression is described. In this test cell, the current density distribution is almost homogeneous over the active cell area due to hydraulic cell clamping. As the hydraulic medium entirely surrounds the active cell components, it is also used to control cell temperature resulting in even temperature distribution. The PEMWE single-cell test system based on hydraulic compression offers a 25 cm2 active surface area (5.0 × 5.0 cm) and can be operated up to 80°C and 6.0 A/cm2. Construction details and material selection for the designed test cell are given in this document. Furthermore, findings related to pressure distribution analyzed by utilizing a pressure-sensitive foil, the cell performance indicated by polarization curves, and the reproducibility of results are described. Experimental data indicate the applicability of the presented testing device for relevant PEMWE component testing and material analysis. KW - novel KW - polymer electrolyte membrane KW - water electrolysis KW - hydraulic cell compression Y1 - 2022 U6 - https://doi.org/10.1002/fuce.202200068 SP - 284 EP - 289 ER - TY - CHAP A1 - Bänsch, Felix A1 - Daniel, Mirco A1 - Lanig, Harald A1 - Steinbeck, Christoph A1 - Zielesny, Achim T1 - A new Approach to DPD Repulsion Parameter Estimation T2 - Konferenz: 34th Molecular Modelling Workshop 2020, 17.-19. Februar 2020 in Erlangen Y1 - 2020 ER - TY - JOUR A1 - Löffler, Markus Jan A1 - Zellmer, Florian A1 - Schneider, Markus A1 - Kreischer, Christian T1 - A Multiphase Rail Launcher With Circular Geometry and Modular Design: Development, Construction, and First Experiments JF - IEEE Transactions on Plasma Science KW - Multiphase Rail Launcher Y1 - 2023 U6 - https://doi.org/10.1109/TPS.2023.3240773 VL - 2023 IS - 2023-03 ER - TY - JOUR A1 - Truszkowski, Andreas A1 - Daniel, Mirco A1 - Kuhn, Hubert A1 - Neumann, Stefan A1 - Steinbeck, Christoph A1 - Zielesny, Achim A1 - Epple, Matthias T1 - A molecular fragment cheminformatics roadmap for mesoscopic simulation JF - Journal of Cheminformatics Y1 - 2014 U6 - https://doi.org/10.1186/s13321-014-0045-3 SN - 1758-2946 VL - 6 IS - Artikelnr. 45 ER - TY - CHAP A1 - Ettelt, Volker A1 - Ekat, Katharina A1 - Epple, Matthias A1 - Veith, Michael T1 - A molecular architecture for the selective suppression of bacterial adsorption and the promotion of specific cell adhesion T2 - Konferenz: Jahrestagung der Deutschen Gesellschaft für Biomaterialien, 8.-11. November 2017 in Würzburg Y1 - 2017 ER - TY - CHAP A1 - Brodmann, Michael A1 - Rost, Ulrich T1 - A Modular Stack Technology for Electrochemical Cells Based on Hydraulic Compression T2 - Konferenz: OZ-14, 7th German-Japanese Symposium on nanostructures, March 2-4, 2014 in Wenden/Olpe, Germany N2 - Membrane electrode assemblies (MEA) developed at the Westphalian Energy Institute for polymer electrolyte membrane fuel cells (PEMFC) are high tech systems containing various materials structured in nanoscale, at which electrochemical reactions occur on catalyst nano particle surfaces. For low reactance homogeneous compression of the MEA’s layers is necessary. A novel stack architecture for electrochemical cells, especially PEMFC as well as PEM electrolysers, has been developed according to achieve ideal cell operation conditions. Single cells of such a stack are inserted into flexible slots that are surrounded by hydraulic media. While operation the hydraulic media is pressurised which leads to an even compression and cooling of the stack’s cells. With this stack design it has been possible to construct a test facility for simultaneous characterisation of several MEA samples. As compression and temperature conditions of every single sample are equal, with the novel test system the effect of e.g. different electrode configurations can be investigated. Furthermore, the modular stack design leads to the development of hybrid energy applications combining fuel cells, electrolysers, batteries as well as metal hydride tanks in one system. Y1 - 2014 ER - TY - JOUR A1 - Wirkert, Florian Josef A1 - Roth, Jeffrey A1 - Jagalski, Stefan A1 - Neuhaus, Philipp A1 - Rost, Ulrich A1 - Brodmann, Michael T1 - A modular design approach for PEM electrolyser systems with homogeneous operation conditions and highly efficient heat management JF - International Journal of Hydrogen Energy Y1 - 2020 U6 - https://doi.org/10.1016/j.ijhydene.2019.03.185 SN - 0360-3199 VL - 45 IS - 2 SP - 1226 EP - 1235 ER - TY - JOUR A1 - Wirkert, Florian Josef A1 - Roth, Jeffrey A1 - Jagalski, Stefan A1 - Neuhaus, Philipp A1 - Rost, Ulrich A1 - Brodmann, Michael T1 - A modular design approach for PEM electrolyser systems with homogeneous operation conditions and highly efficient heat management JF - International Journal of Hydrogen Energy Y1 - 2020 U6 - https://doi.org/10.1016/j.ijhydene.2019.03.185 SN - 0360-3199 VL - 45 IS - 2 SP - 1226 EP - 1235 ER - TY - JOUR A1 - Deep, Aman A1 - Sieber, Guido A1 - Boden, Lisa A1 - David, Gwendoline M. A1 - Baikova, Daria A1 - Buchner, Dominik A1 - Starke, Jörn A1 - Stach, Tom Lennard A1 - Reinders, Torben A1 - Hadžiomerović, Una A1 - Beszteri, Sára A1 - Probst, Alexander J. A1 - Boenigk, Jens A1 - Beißer, Daniela T1 - A metatranscriptomic exploration of fungal and bacterial contributions to allochthonous leaf litter decomposition in the streambed JF - PeerJ N2 - The decomposition of organic matter is essential for sustaining the health of freshwater ecosystems by enabling nutrient recycling, sustaining food webs, and shaping habitat conditions, which collectively enhance ecosystem resilience and productivity. Bacteria and fungi play a crucial role in this process by breaking down coarse particulate organic matter (CPOM), such as leaf litter, into nutrients available for other organisms. However, the specific contribution of bacteria and their functional interactions with fungi in freshwater sediments have yet to be thoroughly explored. In the following study, we enriched organic matter through the addition of alder (Alnus glutinosa) leaves into artificial stream channels (AquaFlow mesocosms). We then investigated enzyme expression, metabolic pathways, and community composition of fungi and bacteria involved in the degradation of CPOM through metatranscriptomics and amplicon sequencing. Enzymes involved in the degradation of lignin, cellulose, and hemicellulose were selectively upregulated with increased organic matter. Analysis of ITS and 16S rRNA gene sequences revealed that during decomposition, fungal communities were predominantly composed of Basidiomycota and Ascomycota, while bacterial communities were largely dominated by Pseudomonadota and Bacteroidota. The similar gene expression patterns of CPOM degradation related enzymes observed between bacteria and fungi indicate potential functional interaction between these microbial groups. This correlation in enzyme expression may indicate that bacteria and fungi are jointly involved in the breakdown of coarse particulate organic matter, potentially through mutualistic interaction. This study uncovers the specific enzymatic activities of bacteria and fungi and the importance of microbial interactions in organic matter decomposition, revealing their central role in facilitating nutrient cycling and maintaining the ecological health and stability of freshwater ecosystems. KW - Metatranscriptomics KW - Coarse perticulate organic matter KW - Freshwater ecosystem health KW - Microbial interactions KW - Enzyme activity KW - Sequencing Y1 - 2025 U6 - https://doi.org/10.7717/peerj.19120 VL - 2025 PB - PeerJ Publishing ER - TY - CHAP A1 - Demir, Nurullah A1 - Pohlmann, Norbert A1 - Urban, Tobias A1 - Wressnegger, Christian T1 - A Large-Scale Study of Cookie Banner Interaction Tools and Their Impact on Users' Privacy T2 - Proceedings on Privacy Enhancing Technologies N2 - Cookie notices (or cookie banners) are a popular mechanism for websites to provide (European) Internet users a tool to choose which cookies the site may set. Banner implementations range from merely providing information that a site uses cookies over offering the choice to accepting or denying all cookies to allowing fine-grained control of cookie usage. Users frequently get annoyed by the banner’s pervasiveness as they interrupt “natural” browsing on the Web. As a remedy, different browser extensions have been developed to automate the interaction with cookie banners. In this work, we perform a large-scale measurement study comparing the effectiveness of extensions for “cookie banner interaction.” We configured the extensions to express different privacy choices (e.g., accepting all cookies, accepting functional cookies, or rejecting all cookies) to understand their capabilities to execute a user’s preferences. The results show statistically significant differences in which cookies are set, how many of them are set, and which types are set—even for extensions that aim to implement the same cookie choice. Extensions for “cookie banner interaction” can effectively reduce the number of set cookies compared to no interaction with the banners. However, all extensions increase the tracking requests significantly except when rejecting all cookies. KW - cookie banner KW - consent banner KW - cookies KW - privacy KW - web measurement Y1 - 2023 UR - https://norbert-pohlmann.com/wp-content/uploads/2023/12/455-A-Large-Scale-Study-of-Cookie-Banner-Interaction-Tools-and-Their-Impact-on-Users-Privacy-Prof-Norbert-Pohlmann.pdf U6 - https://doi.org/10.56553/popets-2024-0002 VL - 2024 IS - 1 SP - 5 EP - 20 ER - TY - CHAP A1 - Brinck, Heinrich A1 - Krone, Jörg ED - Lemke, Heinz U. ED - Inamura, Kiyonari ED - Vannier, Michael W. ED - Farman, Allan G. ED - Doi, Kunio ED - Reiber, Johan H. C. T1 - A Java-based general purpose telemedicine system T2 - CARS 2003 - computer assisted radiology and surgery: proceedings of the 17th International Congress and Exhibition, London, June 25 - 28, 2003 Y1 - 2003 SN - 0-444-51387-6 SP - 1302 EP - 1303 PB - Elsevier CY - Amsterdam ER - TY - CHAP A1 - Becker, Katja M. A1 - Meyer, Manfred A1 - Stanley, Colin A1 - Gamundani, Attlee M. ED - Macari, Kirsty T1 - A Global Intercultural Project Experience (Gipe): Reflections on combining online and onsite project-based learning across four continents T2 - AMPS PROCEEDINGS SERIES 31,Transformative Teaching: Focus on Pedagogy 2022 N2 - The concept of “Internationalisation at Home“ has gained momentum with the increasing digitalization of education and limitations on mobility. Collaborative Online International Learning (COIL) is an innovative, cost-effective instructional method that promotes intercul-tural learning through online collaboration between faculty and students from different countries or locations. The benefits of using COIL courses have been widely recognized, with learners developing intercultural competencies, digital skills, international education experi-ence, and global awareness. However, multicultural communication in project environments can be complex and demand awareness of cultural variations . The creation and development of effective cross-cultural collectivism, trust, communication, and empathy in leadership is an important ingredient for remote project collaborations success. This is an area that has been least explored in re-search on communication in virtual teams. The GIPE projects are mainly carried out as so-called Collaborative Online International Learning (COIL) events. However, to gain a “real world“ experience abroad in an intercultural team, students from all partner universities can participate in the Spring School being held for two weeks in Germany and the Germany students present and hand-over the results in the country of the partner university. The main objective of this research was to examine the experiences of students participating in the GIPE project and to evaluate the effectiveness of the project in enhancing intercultural competencies and fostering collaboration among stu-dents from different continents. This paper will also explore the implications of the GIPE project for Education 2.0 considering the COVID-19 pandemic and the future of education delivery and administration transformation. KW - Transformative Teaching Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1010-opus4-42690 SN - 2398-9467 SP - 243 EP - 251 PB - AMPS ER - TY - RPRT A1 - Löffler, Markus Jan A1 - Oberladstätter, Oswald T1 - A German townhouse with electric infrared heating panels and a wood pellet stove occupants experience and energy monitoring results N2 - The intention of this report is to serve as a "real life" documentation of using electric infrared heating panels in a remodeled older residential building. KW - infrared heating panel Y1 - 2016 U6 - https://doi.org/10.13140/RG.2.2.34656.17923 ER - TY - JOUR A1 - Zylka, Waldemar A1 - Sabczynski, Jörg A1 - Schmitz, Georg T1 - A Gaussian approach for the calculation of the accuracy of stereotactic frame systems JF - Medical Physics N2 - Stereotactic frame systems are widely used in neurosurgery. The accuracy of frame devices is considered as a gold standard to which the accuracy of new frameless stereotactic navigation systems is compared. The purpose of this study is to develop a general approach for the prediction of the application accuracy of stereotactic systems. The approach will be applied to the frame‐based biopsy performed with three frame devices: Leksell G, Cosman–Roberts–Wells (CRW), and Brown–Roberts–Wells (BRW). A work‐flow analysis will be carried out demonstrating that the accuracy relevant for a clinical application comprises several error sources including imaging, target and entry point selection, image to frame coordinates registration, and the setting of mechanical parameters of the frame. These error sources will be postulated to obey a Gaussian distribution probability density. The linear, i.e., Gaussian, error propagation, will be used to link all error contributions thus to calculate the cumulative accuracy of the frame used in the application. Although the Gaussian approach is an approximation, it allows for an analytical treatment of the accuracy. Both the accuracy at the target point and the accuracy of the probe needle guidance along the planned trajectory have been investigated. Of great significance is the relationship found between accuracy, pixel dimension, and image slice thickness, the latter being the dominant factor for slices of more than 1.5 mm thickness, yielding inaccuracies larger than 1.5 mm. For target points the predictions for the application accuracy have been compared to the results of measurements, showing good agreement with the experimental data. Y1 - 1999 U6 - https://doi.org/10.1118/1.598529 VL - 26 IS - 3 SP - 381 EP - 391 ER - TY - CHAP A1 - Brinck, Heinrich A1 - Bührig, C. A1 - Fuhrmann, P. A1 - Krone, Jörg ED - Lemke, Heinz U. ED - Vannier, M. V. ED - Inamura, Kiyonari T1 - A filter and segmentation algorithm for ultrasonic images T2 - CAR '98. Computer assisted radiology and surgery. Proceedings of the 12th International Symposium and Exhibition, Tokyo, 24-27 June 1998 Y1 - 1998 SN - 0-444-82973-3 SP - 870 PB - Elsevier CY - Amsterdam ER - TY - VIDEO A1 - Surmann, Hartmut T1 - A few 360° panorama pictures from the vegetation fire exercise in Viersen 8/2021 N2 - A few 360° panorama pictures from the vegetation fire exercise in Viersen 8/2021 KW - Robotik KW - UAV KW - Rettungsrobotik KW - Flugkörper Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1010-opus4-40675 ER - TY - CHAP A1 - Becker, Katja M. A1 - Winschiers-Theophilus, Heike A1 - Maasz, Donovan A1 - Auala, Selma A1 - Itenge, Helvi A1 - Isaacs, Joseph-David A1 - Peter, Kaulyaalalwa A1 - Goagoses, Naska T1 - A Dynamically Evolving Multicultural Escape Suitcase Travelling a Participatory Journey T2 - PDC '24: Proceedings of the Participatory Design Conference 2024: Situated Actions, Doctoral Colloquium, PDC places, Communities. Sibu Malaysia, August 11 - 16, 2024. N2 - Escape rooms have gained popularity across the globe, be it for entertainment, team building, or learning purposes. Solving puzzles has intrigued humanity since ancient times and playing games together facilitated intercultural encounters, encouraging mutual learning. This situated action builds on the idea of a mobile escape room within a suitcase, which when traveling shares previous encounters and collects new puzzles, thereby ever evolving. A suitcase will arrive in Sibu, Malaysia, with augmented reality stickers that entail puzzles created in Namibia. Visitors need to solve the puzzles to open the suitcase, which contains treats from Namibia, as well as materials to create new puzzles. Visitors participate in creating their own cultural puzzles, upload them to the augmented reality application, and thereby contribute to a new multicultural escape suitcase. The puzzles can also be played back at home, and the suitcase will continue evolving as it travels. KW - Escape Room KW - Puzzles KW - Multicultural KW - Game Design Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1010-opus4-47430 SN - 979-8-4007-0655-4 IS - Volume 3 SP - 3 EP - 5 PB - ACM Digital Library CY - New York ER - TY - JOUR A1 - Wittek, Kevin A1 - Finke, Sebastian A1 - Schelte, Nora A1 - Pohlmann, Norbert A1 - Severengiz, Semih T1 - A Crypto-Token Based Charging Incentivization Scheme for Sustainable Light Electric Vehicle Sharing JF - IEEE-European Technology and Engineering Management Summit, E-TEMS 2021 N2 - The ecological impact of shared light electric vehicles (LEV) such as kick scooters is still widely discussed. Especially the fact that the vehicles and batteries are collected using diesel vans in order to charge empty batteries with electricity of unclear origin is perceived as unsustainable. A better option could be to let the users charge the vehicles themselves whenever it is necessary. For this, a decentralized,flexible and easy to install network of off-grid solar charging stations could bring renewable electricity where it is needed without sacrificing the convenience of a free float sharing system. Since the charging stations are powered by solar energy the most efficient way to utilize them would be to charge the vehicles when the sun is shining. In order to make users charge the vehicle it is necessary to provide some form of benefit for them doing so. This could be either a discount or free rides. A particularly robust and well-established mechanism is controlling incentives via means of blockchain-based cryptotokens. This paper demonstrates a crypto-token based scheme for incentivizing users to charge sharing vehicles during times of considerable solar irradiation in order to contribute to more sustainable mobility services. Y1 - 2021 UR - https://norbert-pohlmann.com/wp-content/uploads/2021/05/427-A-Crypto-Token-Based-Charging-Incentivization-Scheme-for-Sustainable-Light-Electric-Vehicle-Sharing-Prof.-Norbert-Pohlmann.pdf SP - 136 EP - 140 ER - TY - CHAP A1 - Rost, Ulrich A1 - Marginean, Gabriela A1 - Muntean, Roxana A1 - Podleschny, Pit Yannick A1 - Brodmann, Michael A1 - Merino, Cesar A1 - Diez, Roberto ED - International Energy and Sustainability Conference , T1 - A cost-effective PEM fuel cell test system based on hydraulic compression with optimized platinum catalyst loading T2 - International Energy and Sustainability Conference (IESC), June 30 - July 1, 2016 N2 - For this study gas diffusion electrodes (GDE) with low platinum loading are prepared for the application as anode in polymer electrolyte membrane fuel cell (PEMFC) systems based on hydraulic compression. As catalyst support material, carbon nanofibers (CNF) are investigated because of their high specific surface area and high graphitization degree. The electrode preparation is optimized by an economic and environmental friendly pre-treatment process in oxygen plasma. For GDE manufacture an ink containing oxygen plasma activated CNFs as well as hydrophilic polymer is used. After spray coating of this CNF ink on a graphitic substrate, platinum is deposited using the pulse plating technique. Preliminary results showed a considerable improvement of CNF dispersibility as well as an increased amount and an optimized morphology of the deposited platinum. Morphology and microstructure are observed by scanning electron microscopy as well as transmission electron microscopy. Platinum loading is determined by thermogravimetric analysis to be in the range of 0.01 mg cm-2 to 0.017 mg cm-2. Furthermore, MEAs are prepared from these GDEs and testing is performed in a novel modular fuel cell test stack based on hydraulic compression. Technical information about stack design and functions is given in this work. KW - Hydraulic compression KW - Carbon Nano Fibers KW - PEM Fuel Cells KW - Catalyst utilization Y1 - 2016 SN - 978-1-5090-2980-8 U6 - https://doi.org/10.1109/IESC.2016.7569500 PB - IEEE CY - [Piscataway, NJ] ER - TY - CHAP A1 - Ese, Zehra A1 - Kressmann, Marcel A1 - Kreutner, Jakob A1 - Douiri, Amin A1 - Scholz, Stefan A1 - Görtz, Wolfgang A1 - Schaefers, Gregor A1 - Erni, Daniel A1 - Zylka, Waldemar ED - Erni, Daniel ED - Fischerauer, Alice ED - Himmel, Jörg ED - Seeger, Thomas ED - Thelen, Klaus T1 - A comparison of CT Hounsfield units of medical implants and their metallic and electrical components determined by a conventional and an extended CT-scale T2 - 2nd YRA MedTech Symposium 2017. June 8th - 9th / 2017 / Hochschule Ruhr-West Y1 - 2017 SN - 978-3-940402-10-3 U6 - https://doi.org/10.17185/duepublico/43984 SP - 12 EP - 13 ER - TY - CHAP A1 - Wirkert, Florian Josef A1 - Roth, Jeffrey A1 - Jagalski, Stefan A1 - Neuhaus, Philipp A1 - Podleschny, Mats A1 - Rost, Ulrich A1 - Brodmann, Michael T1 - A compact and efficient PEM electrolyser stack design based on hydraulic single cell compression T2 - Konferenz: 10th International Conference on Hydrogen Production, 15.-17. Mai 2019 in Cluj-Napoca, Rumänien Y1 - 2019 ER - TY - CHAP A1 - Geiger, Gerhard A1 - Vogt, Daniel T1 - A Combined Leak Detection Method Using Pattern Recognition Techniques T2 - Proceedings 10th International Pipeline Conference Calgary Y1 - 2014 ER - TY - VIDEO A1 - Surmann, Hartmut T1 - A closer look at Schloss Birlinghoven N2 - The video shows a snapshot of a 16 minute flight of a DJI Phantom 3 professional over the Schloss Birlinghoven at Sankt Augustin, Germany. The castle is located at the Fraunhofer Campus at Sankt Augustin. The 3D model is generated out of 400 key frames of the 4k video which are cut out with ffmpeg. The work is part of an evaluation in the Tradr Project (www.tradr-project.eu) Y1 - 2015 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1010-opus4-30033 UR - https://www.youtube.com/watch?v=--wi5jM5l7E ER - TY - CHAP A1 - Schaub, Christoph A1 - Zielesny, Achim T1 - A Case Study for Information Integration and Analysis with Wistract® – A new Platform for Scientific Information T2 - Konferenz: 2005 International Chemical Information Conference & Exhibition (ICIC). 16.-19. Oktober 2005 in Nîmes, Frankreich Y1 - 2005 UR - http://www.haxel.com/icic/archive/2005/programme/oct%2018/a-case-study-for-information-integration-and-analysis-with-wistract-2013-a-new-platform-for-scientific-information/at_download/attachfile ER - TY - CHAP A1 - Bänsch, Felix A1 - Daniel, Mirco A1 - Lanig, Harald A1 - Steinbeck, Christoph A1 - Zielesny, Achim T1 - A Calculation Pipeline for Differential Molecule Pair Interaction Energies T2 - 35th Molecular Modeling Workshop Y1 - 2023 N1 - Poster Session, Abstract im Tagungsband veröffentlicht. ER - TY - GEN A1 - Zielesny, Achim T1 - A C# high-performance mathematical function compiler for efficient and fast calculation of function values of arbitrary complex single-line mathematical formulas at design and runtime [Softwarecode, Version 1.0.0.0] N2 - A C# high-performance mathematical function compiler for efficient and fast calculation of function values of arbitrary complex single-line mathematical formulas at design and runtime Y1 - 2018 UR - https://github.com/zielesny/MathCompiler ER - TY - JOUR A1 - Wienbracke, Mike T1 - 6 % Zinsen auf Steuernachforderungen und -erstattungen sind verfassungswidrig JF - Gesellschafts- und Wirtschaftsrecht (GWR). Handels- und Gesellschaftsrecht, Kapitalmarktrecht, Finanzierung Y1 - 2021 SN - 1868-1816 VL - 13 IS - 18 SP - 361 EP - 361 ER - TY - CHAP A1 - Gawel, Abel A1 - Dubé, Renaud A1 - Surmann, Hartmut A1 - Nieto, Juan A1 - Siegwart, Roland A1 - Cadena, Cesar ED - IEEE International Symposium on Safety, Security and Rescue Robotics , ED - Institute of Electrical and Electronics Engineers, T1 - 3D registration of aerial and ground robots for disaster response: An evaluation of features, descriptors, and transformation estimation T2 - SSRR 2017. The 15th IEEE International Symposium on Safety, Security and Rescue Robotics. Oct 11-13, 2017, Shanghai, China N2 - Global registration of heterogeneous ground and aerial mapping data is a challenging task. This is especially difficult in disaster response scenarios when we have no prior information on the environment and cannot assume the regular order of man-made environments or meaningful semantic cues. In this work we extensively evaluate different approaches to globally register UGV generated 3D point-cloud data from LiDAR sensors with UAV generated point-cloud maps from vision sensors. The approaches are realizations of different selections for: a) local features: key-points or segments; b) descriptors: FPFH, SHOT, or ESF; and c) transformation estimations: RANSAC or FGR. Additionally, we compare the results against standard approaches like applying ICP after a good prior transformation has been given. The evaluation criteria include the distance which a UGV needs to travel to successfully localize, the registration error, and the computational cost. In this context, we report our findings on effectively performing the task on two new Search and Rescue datasets. Our results have the potential to help the community take informed decisions when registering point-cloud maps from ground robots to those from aerial robots. Y1 - 2017 SN - 978-1-5386-3923-8 U6 - https://doi.org/10.1109/SSRR.2017.8088136 SP - 27 EP - 34 PB - IEEE CY - Piscataway, NJ ER - TY - VIDEO A1 - Meine, Julien A1 - Voigt, Niklas A1 - Kremer, Jan-Niklas A1 - Digakis, Niklas A1 - Schulte, Max A1 - Surmann, Hartmut T1 - 3D point cloud model from the DRZ trainings site N2 - From the 360° images of the former video ( • German rescue robotic center captured... ) we now generate the 3D point cloud. The UAV needs 3 minutes to capture the outdoor scenario and the hall from inside and outside. The 3D point cloud generation is 5x slower than the video. It uses a VSLAM algorithm to localize the k-frames (green) and with 3 k-frames it use a 360° PatchMatch algorithm implemented at a NVIDIA graphic card (CUDA) to calculated the dense point clouds.The hall ist about 70 x 20 meters. Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1010-opus4-43134 ER - TY - VIDEO A1 - Surmann, Hartmut T1 - 3D Modell der Halle des Deutschen Rettungsrobotik-Zentrums (innen) N2 - Basierend auf Panoramen aufgenommen mit einem UAV. KW - Robotik KW - UAV KW - Flugkörper KW - 3D Modell KW - Deutsches Rettungsrobotik-Zentrum KW - DRZ Y1 - 2020 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1010-opus4-38641 ER - TY - VIDEO A1 - Surmann, Hartmut T1 - 3D Modell der Halle des Deutschen Rettungsrobotik-Zentrums (aussen) N2 - Berechnet aus den Bildern eines UAVs. KW - Robotik KW - UAV KW - Flugkörper KW - 3D Modell KW - Deutsches Rettungsrobotik-Zentrum KW - DRZ Y1 - 2020 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1010-opus4-38651 ER - TY - VIDEO A1 - Surmann, Hartmut T1 - 3D Model of the San Francesco church, Mirandola after the 2012 earthquake [Teil 2] N2 - Modelled with VisualSfM and CMPMVS from a drone flight video. Y1 - 2015 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1010-opus4-30060 UR - https://www.youtube.com/watch?v=0w7iiaZtirA ER - TY - VIDEO A1 - Surmann, Hartmut T1 - 3D Model of the San Francesco church, Mirandola after the 2012 earthquake [Teil 1] N2 - Modelled with VisualSfM and CMPMVS from a drone flight video. Y1 - 2015 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1010-opus4-30055 UR - https://www.youtube.com/watch?v=xX58Ry7mzl8 ER - TY - VIDEO A1 - Surmann, Hartmut T1 - 3D Model of Phoenix West Dortmund top view N2 - This video shows a model computed from 320 images taken at the Tjex 2015 of the trade project (www.tradr-project.eu). The images were acquired with a falcan 8 drone (AscTec) and reconstruct the structure with VisualSfm software. The flight was in 150 m. The Tower is about 95 meter high. Y1 - 2015 UR - https://www.youtube.com/watch?v=sPAnXH9cl6A ER - TY - VIDEO A1 - Surmann, Hartmut T1 - 3D Model of Phoenix West / Dortmund (side view) N2 - This video shows a model computed from 124 images taken at the Tjex 2015 of the trade project (www.tradr-project.eu). The images were acquired by walking around the object and reconstruct the structure with VisualSfm software. Y1 - 2015 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1010-opus4-29982 UR - https://www.youtube.com/watch?v=zNZtuq0Nm1c ER - TY - VIDEO A1 - Meine, Julien A1 - Voigt, Niklas A1 - Kremer, Jan-Niklas A1 - Digakis, Niklas A1 - Schulte, Max A1 - Surmann, Hartmut T1 - 3D model generated with the nerfacto AI algorithm after a fire based on 360° camera images N2 - Essen 2 2022, indoor, DJI FPV with insta360 Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1010-opus4-43212 ER - TY - VIDEO A1 - Meine, Julien A1 - Voigt, Niklas A1 - Kremer, Jan-Niklas A1 - Digakis, Niklas A1 - Schulte, Max A1 - Surmann, Hartmut T1 - 3D model generated with the nerfacto AI algorithm after a fire N2 - Essen 2 / 2022, outdoor, based on a meander flight with a P4 and Mavic Enterprise. Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1010-opus4-43228 ER - TY - CHAP A1 - Surmann, Hartmut A1 - Berninger, Nils A1 - Worst, Rainer ED - IEEE/RSJ International Conference on Intelligent Robots and Systems <2017, Vancouver, British Columbia>, ED - Corporation Institute of Electrical and Electronics Engineers, T1 - 3D mapping for multi hybrid robot cooperation T2 - IROS Vancouver 2017. IEEE/RSJ International Conference on Intelligent Robots and Systems, Vancouver, BC, Canada September 24-28, 2018. Conference digest N2 - This paper presents a novel approach to build consistent 3D maps for multi robot cooperation in USAR environments. The sensor streams from unmanned aerial vehicles (UAVs) and ground robots (UGV) are fused in one consistent map. The UAV camera data are used to generate 3D point clouds that are fused with the 3D point clouds generated by a rolling 2D laser scanner at the UGV. The registration method is based on the matching of corresponding planar segments that are extracted from the point clouds. Based on the registration, an approach for a globally optimized localization is presented. Apart from the structural information of the point clouds, it is important to mention that no further information is required for the localization. Two examples show the performance of the overall registration. Y1 - 2017 SN - 978-1-5386-2682-5 U6 - https://doi.org/10.1109/IROS.2017.8202217 SP - 626 EP - 633 PB - IEEE CY - [Piscataway, NJ] ER - TY - JOUR A1 - Fischer, Matthias A1 - Beismann, Heike T1 - 3D characterization of the complex vascular bundle system of Hakea fruits based on X-ray microtomography (µCT) for a better understanding of the opening mechanism JF - Flora N2 - Fruits (follicles) of Hakea salicifolia and Hakea sericea (Proteaceae) are characterised by pronounced lignification and open via a ventral suture and the dorsal side. The opening along both sides is unique within the Proteaceae. Both serotinous species are obligate seeders, whose spreading benefits from bush fire events. The different tissues and the course of the vascular bundles must allow the opening mechanism. While their 2D-arrangements are known to some extent from light-microscopy images of cross-sections, this work presents their three-dimensional structures and discusses their contribution to the opening of Hakea fruits. For this purpose, 3D greyscale images, reconstructed from µCT-projection data of both fruits are segmented, assisted by a deep learning algorithm (AI algorithm). 3D renderings from these segmentations show strongly interconnected vascular bundles that build a double-dome shaped network in each valve of H. salicifolia and a dome shaped honeycomb-structure in each valve of H. sericea. However, the vascular bundles of both species show no interconnection between the two lateral valves of the fruit but leave gaps for predetermined fracture tissues on the ventral and dorsal side. The opening of the fruits after a fire or after separation from the mother plant can be explained by the anisotropic shrinkage in the two valves of the fruit. KW - Biomechanics KW - Deep Learning Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1010-opus4-40924 SN - 0367-2530 VL - 289.2022 IS - April SP - 152035 PB - Elsevier CY - Amsterdam ER - TY - VIDEO A1 - Surmann, Hartmut A1 - Leinweber, Artur A1 - Senkowski, Gerhard A1 - Slomma, Dominik A1 - Thurow, Marc T1 - 360°-Flug über das Gelände des Deutschen Rettungsrobotik-Zentrums KW - UAV KW - Flugkörper KW - Deutsches Rettungsrobotik-Zentrum KW - DRZ Y1 - 2020 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1010-opus4-38678 ER - TY - VIDEO A1 - Surmann, Hartmut T1 - 360° UAV view of a vegetation fire exercise P4 N2 - 360° UAV view of a vegetation fire exercise P4 KW - Robotik KW - UAV KW - Rettungsrobotik KW - Flugkörper Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1010-opus4-40714 ER - TY - VIDEO A1 - Surmann, Hartmut A1 - Leinweber, Artur T1 - 360° UAV view of a vegetation fire exercise Mavic N2 - 360° UAV view of a vegetation fire exercise Mavic KW - Robotik KW - UAV KW - Rettungsrobotik KW - Flugkörper Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1010-opus4-40742 ER - TY - VIDEO A1 - Surmann, Hartmut A1 - Deutsches Rettungsrobotik Zentrum, T1 - 360° Panorama Flug über das DRZ Außengelände während des Integrationssprints N2 - 360° Panorama Flug über das DRZ Außengelände während des Integrationssprints KW - Robotik KW - UAV KW - Rettungsrobotik KW - Flugkörper Y1 - 2021 UR - https://www.youtube.com/watch?v=s7aSug-9hAE ER - TY - VIDEO A1 - Surmann, Hartmut A1 - Deutsches Rettungsrobotik Zentrum, T1 - 360° FFP-Flug in einem Einsturzszenario N2 - 360° UAV Flight in a collapse test setup at the German Resuce Robotik Center KW - Robotik KW - UAV KW - Rettungsrobotik KW - Flugkörper Y1 - 2021 UR - https://www.youtube.com/watch?v=Bu3UDhdJDmQ ER - TY - VIDEO A1 - Surmann, Hartmut T1 - 360° Camera at a small UAV N2 - 360° Camera at a small UAV, Viersen 8 / 2021 KW - Robotik KW - UAV KW - Rettungsrobotik KW - Flugkörper Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1010-opus4-40752 ER - TY - VIDEO A1 - Meine, Julien A1 - Voigt, Niklas A1 - Kremer, Jan-Niklas A1 - Digakis, Niklas A1 - Schulte, Max A1 - Surmann, Hartmut T1 - 360° and IR- Camera Drone Flight Test: Superimposition of two data sources for Post-Fire Inspection N2 - This video highlights a recent flight test carried out in our cutting-edge robotics lab, unveiling the capabilities of our meticulously crafted thermal and 360° camera drone! We've ingeniously upgraded a DJI Avata with a bespoke thermal and 360° camera system. Compact yet powerful, measuring just 18 x 18 x 17 cm, this drone is strategically engineered to effortlessly navigate and deliver crucial thermal and 360° insights concurrently in post-fire or post-explosion environments. The integration of a specialized thermal and 360° camera system enables the simultaneous capture of both data sources during a single flight. This groundbreaking approach not only reduces inspection time by half but also facilitates the seamless superimposition of thermal and 360° videos for comprehensive analysis and interpretation. Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1010-opus4-43304 ER - TY - JOUR A1 - Bontrup, Heinz-Josef A1 - Marquardt, Ralf-Michael T1 - 35-Stunden-Woche in der ostdeutschen Industrie – eine ökonomische Nachlese JF - Wirtschaftsdienst Y1 - 2003 UR - https://archiv.wirtschaftsdienst.eu/downloads/getfile.php?id=126 SN - 0043-6275 VL - 83 IS - 9 SP - 591 EP - 598 ER - TY - JOUR A1 - Bontrup, Heinz-Josef T1 - 30-Stunden-Woche fordern und umsetzen - sofort! JF - Lunapark21. Zeitschrift zur Kritik der globalen Ökonomie Y1 - 2014 SN - 1866-3788 IS - 27 SP - 31ff ER - TY - JOUR A1 - Bontrup, Heinz-Josef T1 - 30 Stunden sind genug. Debatte. Eine Verkürzung der Arbeitszeit ist längst überfällig – und bei vollem Lohn- und Personalausgleich realisierbar JF - Junge Welt. Die Tageszeitung Y1 - 2012 SN - 0941-9373 SP - 10 ER - TY - CHAP A1 - Weinacht, Stefan A1 - Spiller, Ralf T1 - 20 Jahre sozialwissenschaftliche Forschung zu Datenjournalismus. Trends und Defizite T2 - Konferenz: SciCAR – Where Science Meets Computer Assisted Reporting, 24.–26. September 2018 in Dortmund Y1 - 2018 ER - TY - CHAP A1 - Hannemann, Dieter ED - Fachbereichstag Informatik, T1 - 1998 bis 2004: Die Jahre des Umbruchs T2 - Festschrift 25 Jahre Fachbereichstag Informatik Y1 - 2010 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1010-opus4-3693 UR - http://www.hs-hannover.de/fileadmin/media/doc/fbti/Aktuelles/FBTI-Jubilaeumsschrift_2010_25JahreFBTI.pdf SP - 10 EP - 12 PB - Hochschule Fulda CY - Fulda ER - TY - CHAP A1 - van den Broek, Karina A1 - Epple, Matthias A1 - Kuhn, Hubert A1 - Truszkowski, Andreas A1 - Zielesny, Achim T1 - 11th German Conference on Chemoinformatics (GCC 2015). Fulda, Germany. 8–10 November 2015. Mesoscopic simulation of biomolecular systems T2 - Journal of Cheminformatics Y1 - 2016 U6 - https://doi.org/10.1186/s13321-016-0119-5 SN - 1758-2946 VL - 8 IS - 1, Supplement SP - O8 ER - TY - BOOK A1 - Schwark, Jürgen T1 - 101 Tipps für Jugendwasserballer Y1 - 2012 SN - 978-3-8482-2585-9 PB - Books on Demand CY - Norderstedt ER - TY - JOUR A1 - Wienbracke, Mike T1 - 10 Jahre EuGH-Rechtsprechung im Kontext der Fluggastrechteverordnung JF - EuZW Y1 - 2016 SP - 51 EP - 56 ER - TY - BOOK A1 - Kriegesmann, Bernd A1 - Kunhenn, Horst A1 - Kley, Thomas A1 - Lücke, Christina A1 - Warode, Markus A1 - Brodowski, Britta A1 - Krause, Boris T1 - (Wie) Kann man Vertrauen managen? Möglichkeiten und Grenzen der Stabilisierung von Vertrauen bei organisatorischen Innovationsprozessen. Eine Zwischenbilanz mit qualitativen empirischen Ergebnissen T3 - Berichte aus der angewandten Innovationsforschung - 246 Y1 - 2012 PB - IAI, Institut für angewandte Innovationsforschung CY - Bochum ER - TY - CHAP A1 - Fieberg, Christian T1 - (Partielle) Ähnlichkeit bei Skalierten Raumluftströmungen T2 - Jahrestreffen der ProcessNet-Fachgruppen Mischvorgänge, Trocknungstechnik und Wärme- und Stoffübertragung, 18.-20. März 2019 in Essen N2 - Menschen verbringen einen großen Teil ihrer Zeit in Innenräumen. Um dafür die notwendige thermische Behaglichkeit zu gewährleisten, müssen schon bei der Nutzungsplanung die Temperaturen und Luftbewegungen im Raum vorhergesagt werden können. Bei anderen Anwendungen wiederum sind diese Größen relevant für die Prozesssicherheit (z. B. Labore, Operationssaal). Die Vorhersagen erfolgen zum Beispiel durch Strömungssimulationen oder an sogenannten Mock Up Räumen, die eine 1:1 Nachbildung des relevanten Raums darstellen. Bei größeren Räumen wie z. B. Konzertsälen steigt der Aufwand erheblich an. Eine auf den ersten Blick vergleichsweise einfache Lösung ergibt sich durch Untersuchungen an skalierten Modellräumen. Allerdings ist hier die Ähnlichkeit zwischen Modell und Realausführung bei nicht-isothermen Strömungen nicht gegeben. Die dimensionslosen Kenngrößen Reynolds Zahl Re und Archimedes Zahl Ar sind nicht identisch, da sie mit unterschiedlichen Exponenten bei der charakteristischen Länge skalieren, so dass sie durch die Wahl eines anderen Mediums oder Anpassung der Temperaturen nicht hinreichend kompensiert werden können. Im Labor für Klimatechnik an der Westfälischen Hochschule sollen mit Hilfe von experimentellen Modelluntersuchungen und dem Vergleich mit der Realausführung Erkenntnisse gewonnen werden, in wie weit ein Kompromiss aus Ähnlichkeit und Genauigkeit gefunden werden kann, um technisch relevante Fragestellungen am Modell zu beantworten. Die Leitfragen dabei sind: - Wie lassen sich Modellergebnisse auf reale Raumluftströmungen übertragen? - Unter welchen Bedingungen ist die Ähnlichkeit zwischen Modell und Realausführung noch gegeben? - Wie sehen Leitlinien für die praktische Anwendung der Ähnlichkeitsgesetze aus? Ein Büroraum mit unterschiedlichen Luftführungsvarianten und thermischen Lasten stellt dabei die Realausführung dar. Das Modell ist im Maßstab 1:5 herunterskaliert. KW - Skalierung KW - Ähnlichkeitstheorie KW - Raumluftströmung Y1 - 2019 UR - https://www.w-hs.de/fileadmin/public/user_upload/Koop-Kaffee_2019_InternetTeil10.pdf ER - TY - JOUR A1 - Radomski, Eva Franziska T1 - (K)eine mittelbare Drittwirkung des allgemeinen Gleichheitssatzes (Art. 3 Abs. 1 GG) im Zivilrecht?! Eine vergleichende Untersuchung mit der EuGH-Rechtsprechung zur Drittwirkung der Europäischen Grundrechte und Grundfreiheiten N2 - Der Aufsatz untersucht, ob die Grundfreiheiten und Grundrechte auf nationaler und europäischer Ebene Drittwirkung entfalten, d. h. ob Bürger die Grundrechte ihrer Mitbürger beachten müssen. T3 - ReWir. Recklinghäuser Beiträge zu Recht und Wirtschaft - 59/2021 KW - Grundrecht KW - Grundfreiheiten KW - Europäische Union KW - Grundgesetz für die Bundesrepublik Deutschland Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1010-opus4-39693 SN - 2191-866X ER - TY - CHAP A1 - Kerka, Friedrich A1 - Kriegesmann, Bernd A1 - Kley, Thomas ED - Beck, Gerald ED - Kropp, Cordula T1 - (K)eine einfache Frage: Wie überwinden innovative Kräfte Innovationswiderstände? T2 - Gesellschaft innovativ - Wer sind die Akteure? Y1 - 2011 SN - 978-3-531-94135-6 U6 - https://doi.org/10.1007/978-3-531-94135-6 SP - 251 EP - 270 PB - VS Verlag für Sozialwissenschaften CY - Wiesbaden ER - TY - JOUR A1 - Bergmans, Bernhard T1 - 'Recht' und 'Wirtschaft': Systematisierung der Interdependenzen und ihrer wissenschaftlichen Aufarbeitung T1 - 'Law' and 'Economy': Systematics of their interrelationships and their scientific analysis N2 - Der Autor systematisiert zum ersten Mal die zahlreichen Interdependenzen von 'Recht', 'Wirtschaft', 'Rechtswissenschaft' und Wirtschaftswissenschaft', die bislang nur in Teilbereichen (und dann in sehr unteschiedlicher Ausprägung) behandelt wurden. N2 - The author systemizes for the first time the numerous interrelations between 'law', 'economy', 'legal doctrine' und 'economics', which in the past have only in certain parts drawn the attention of scholars. T3 - ReWir. Recklinghäuser Beiträge zu Recht und Wirtschaft - 28/2015 KW - Rechtsökonomik KW - Wirtschaftswissenschaft KW - Economic law KW - Interdependenz KW - Wirtschaftsrecht KW - Rechtswissenschaft KW - Wirtschaftswissenschaften Y1 - 2015 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1010-opus4-2604 ER - TY - JOUR A1 - Wienbracke, Mike T1 - "Über Kreuz"-Rechtfertigung der Gebühr nach § 4 Abs. 4 BremGebBeitrG JF - Deutsches Verwaltungsblatt (DVBL) Y1 - 2019 SN - 0012-1363 VL - 134 IS - 6 SP - 344 EP - 351 ER - TY - JOUR A1 - Willms, Beate T1 - "Wir machen so weiter wie bisher. Unfassbar!" Mitbestimmung: Wenn wir die Gelegenheit für eine Demokratisierung der Wirtschaft nicht nutzen, haben wir aus der Krise nichts gelernt, ist der Ökonom Heinz-Josef Bontrup überzeugt JF - Die Tageszeitung Y1 - 2009 VL - 31 SP - 4 ER - TY - JOUR A1 - Bontrup, Heinz-Josef T1 - "Wie soll das ohne brutale Verteilungskämpfe gehen" JF - Enough. Einfach anders leben. Y1 - 2015 IS - 1 SP - 52ff. ER - TY - JOUR A1 - Bontrup, Heinz-Josef T1 - "Wenn ich das vorrechne, sind alle erstaunt" JF - Der Freitag, das Meinungsmedium Y1 - 2014 SN - 0945-2095 IS - 35 SP - 7 ER - TY - JOUR A1 - Bontrup, Heinz-Josef T1 - "Wachstum nicht um jeden Preis" JF - Die Tageszeitung Y1 - 2015 VL - 37 SP - 9 ER - TY - CHAP A1 - Kriegesmann, Bernd A1 - Kunhenn, Horst A1 - Kley, Thomas A1 - Lücke, Christina ED - Gesellschaft für Arbeitswissenschaft e.V. (GfA), T1 - "Vertrauensmanagement" als stabilisierender Faktor in organisationalen Innovationsprozessen T2 - Gestaltung nachhaltiger Arbeitssysteme - Wege zur gesunden, effizienten und sicheren Arbeit, Bericht zum 58. Arbeitswissenschaftlichen Kongress vom 22.-24. Februar 2012 an der Universität Kassel Y1 - 2011 SP - 963 EP - 966 PB - GfA-Press CY - Dortmund ER - TY - JOUR A1 - Wurzbacher, Ralf T1 - "Unterm Strich soll Wirtschaft entlastet werden". Investivlöhne sind ein weiteres Instrument der Lohnflexibilisierung zugunsten der Unternehmer. Gespräch mit Heinz-Josef Bontrup JF - Junge Welt, die Tageszeitung Y1 - 2006 SP - 2 ER - TY - JOUR A1 - Wolter, Peter T1 - "Solche Prognosen sind nichts als Wahlkampfgetöse". Mit Blick auf den 27. September versuchen Wirtschaftsforscher, die Krise zu beschönigen. Ein Gespräch mit Heinz-J. Bontrup JF - Junge Welt, die Tageszeitung Y1 - 2009 SP - 2 ER - TY - JOUR A1 - Bontrup, Heinz-Josef T1 - "Solarförderung aus der Portokasse" JF - Energie & Management Y1 - 2015 SP - 10 ER - TY - JOUR A1 - West-Leuer, Beate A1 - Lewkowicz, Eva-Maria T1 - "Nüsse knacken, einen Apfel schälen, Mineralwasser eingießen". Management-Coaching in Zeiten des Wandels JF - Supervision. Mensch, Arbeit, Organisation. Zeitschrift für Beraterinnen und Berater KW - Psychodynamische Beratung KW - Coaching KW - Management Y1 - 2017 SN - 1431-7168 VL - 35 IS - 1 SP - 32 EP - 38 ER - TY - CHAP A1 - Schwark, Jürgen ED - Jütting, Dieter H. ED - Schulze, Bernd ED - Müller, Ulrike T1 - "Networking without checks" — golf as a calculated business accessory T2 - Local sport in Europe. 31.05. - 03.06.2007 in Münster Y1 - 2008 SN - 978-3-8309-2015-1 SP - 124 EP - 133 PB - Waxmann CY - Münster [u.a.] ER -