TY - JOUR A1 - Kern, Thomas A1 - Heß, J. A1 - Kriegl, W. A1 - Schweizer, A. T1 - Visualization of the Resistance Spot Welding Process in the Production Line BT - A method of detecting defects in spot welds and optimizing the welding process is proposed. JF - Welding Research Supplement Y1 - 1998 VL - 77 IS - 12 SP - 495 EP - 502 ER - TY - JOUR A1 - Kern, Thomas A1 - Koszielska, Maria T1 - Application of Information Technology by Students of Technical Sciences in the Context of Their Studying Styles JF - The New Educational Review Y1 - 2011 SN - 1732-6729 VL - 25 IS - 3 SP - 151 EP - 159 ER - TY - INPR A1 - Flassig, Robert J. A1 - Vogel, Sven K. A1 - Wölfer, Christian A1 - Ramirez, Diego A. A1 - Sundmacher, Kai A1 - Schwille, Petra T1 - Cortical Actomyosin Flows are Generated by Actomyosin Cluster Vibrationsin Vitro Y1 - 2018 U6 - https://doi.org/10.1101/394700 PB - bioRxiv / Cold Spring Harbor Laboratory ER - TY - JOUR A1 - Goecke, Sven-Frithjof A1 - Kügler, Helga A1 - Möller, Felix A1 - Vollertsen, Frank T1 - Dauerfestigkeit hybridgeschweißter Überlappnähte des Stahls 22MnB5 JF - Materials Testing Y1 - 2016 U6 - https://doi.org/10.3139/120.110880 VL - 58 IS - 6 SP - 569 EP - 574 ER - TY - JOUR A1 - Goecke, Sven-Frithjof A1 - Shome, M. A1 - Das, A. A1 - De, A. T1 - Numerical modelling of gas metal arc joining of aluminium alloy and galvanised steels in lap joint configuration JF - Science and Technology of Welding & Joining Y1 - 2016 U6 - https://doi.org/10.1080/13621718.2015.1104206 VL - 21 IS - 4 SP - 303 EP - 309 ER - TY - JOUR A1 - Goecke, Sven-Frithjof A1 - Müller, Alexander A1 - Sievi, Pravin A1 - Albert, Florian A1 - Rethmeier, Michael T1 - Laser Beam Oscillation Strategies for Fillet Welds in Lap Joints JF - Physics Procedia Y1 - 2014 U6 - https://doi.org/10.1016/j.phpro.2014.08.149 VL - 56 SP - 458 EP - 466 ER - TY - JOUR A1 - Hirsch, Sören A1 - Majcherek, S. A1 - Aman, A. A1 - Schmidt, B. T1 - Microwave emission from lead zirconate titanate induced by impulsive mechanical load JF - Journal of Applied Physics Y1 - 2015 U6 - https://doi.org/10.1063/1.4934735 VL - 118 IS - 16 SP - 164105-1 EP - 164105-7 ER - TY - JOUR A1 - Hirsch, Sören A1 - Pisarevskiy, A. A1 - Tatmyshevskiy, K. A1 - Tomas, J. A1 - Aman, S. T1 - Light emission during impact stressing of a particle layer JF - Measurement Science and Technology Y1 - 2015 U6 - https://doi.org/10.1088/0957-0233/26/4/045103 VL - 26 IS - 4 ER - TY - CHAP A1 - Kramann, Guido T1 - Darwinian Pianos: Realtime Composition Based on Competitive Evolutionary Process T2 - Evolutionary and Biologically Inspired Music, Sound, Art and Design, Second International Conference, EvoMUSART 2013, 3. bis 5. April, Wien T3 - Lecture notes in computer science - 7834 KW - Evolutionärer Algorithmus KW - Maschinelles Lernen KW - Kunst KW - Musik Y1 - 2013 SN - 978-3-642-36954-4 SN - 978-3-642-36955-1 U6 - https://doi.org/10.1007/978-3-642-36955-1_4 VL - 7834 SP - 37 EP - 46 PB - Springer CY - Berlin / Heidelberg ER - TY - JOUR A1 - Knobloch, Florian A1 - Braunschweig, Nico T1 - A Traffic-Aware Moving Light System Featuring Optimal Energy Efficiency JF - IEEE Sensors Journal KW - Lighting KW - Energy efficiency KW - Roads KW - Sensors KW - Real-time systems KW - Safety KW - Automobiles Y1 - 2017 U6 - https://doi.org/10.1109/JSEN.2017.2669398 VL - 17 IS - 23 SP - 7731 EP - 7740 ER - TY - CHAP A1 - Oertel, Christian ED - Gruber, Patrick T1 - 75 years tyre modelling for vehicle dynamics analysis: review and future challenges T2 - Proceedings of the 4th International Tyre Colloquium : tyre models for vehicle dynamics analysis : 20-21 April 2015, University of Surrey, Guildford, United Kingdom Y1 - 2015 SN - 978-1-84469-031-2 SP - 11 EP - 20 PB - University of Surrey CY - Guildford ER - TY - CHAP A1 - Knobloch, Florian T1 - Channel gain and frame error rate for optical street lighting communication T2 - 2015 13th International Conference on Telecommunications (ConTEL) KW - Lighting KW - Optical transmitters KW - Optical filters KW - Optical receivers KW - Light emitting diodes KW - Optical sensors Y1 - 2015 U6 - https://doi.org/10.1109/ConTEL.2015.7231194 PB - IEEE ER - TY - CHAP A1 - Mündemann, Friedhelm T1 - Fuzzy concepts for predicting the behaviour of other drivers on a highway T2 - Fuzzy Logic in Artificial Intelligence Lecture Notes in Computer Science KW - Preparation of decisions with uncertain/vague data KW - Real-time fuzzy expert systems KW - Application: autonomous mobile vehicles Y1 - 1993 U6 - https://doi.org/10.1007/3-540-56920-0_18 SP - 165 EP - 173 PB - Springer Verlag CY - Berlin Heidelberg ER - TY - JOUR A1 - Zehner, Christian A1 - Schweiger, Hans-Georg A1 - Obeidi, Ossama A1 - Komesker, Oliver A1 - Raschke, Andre A1 - Schiemann, Michael A1 - Gehnen, Markus A1 - Keller, Michael A1 - Birke, Peter T1 - Comparison of Several Methods for Determining the Internal Resistance of Lithium Ion Cells JF - Sensors KW - internal resistance KW - impedance KW - lithium-ion-cell KW - AC resistance KW - DC resistance Y1 - 2010 U6 - https://doi.org/10.3390/s100605604 VL - 10 IS - 6 SP - 5604 EP - 5625 ER - TY - JOUR A1 - Vollmer, Michael A1 - Shaw, Joseph A. T1 - Extended visual range during solar eclipses JF - Applied Optics Y1 - 2018 U6 - https://doi.org/10.1364/AO.57.003250 VL - 57 IS - 12 SP - 3250 EP - 3259 ER - TY - JOUR A1 - Vollmer, Michael T1 - Asymmetrische Polarlichter JF - Physik in unserer Zeit Y1 - 2009 U6 - https://doi.org/10.1002/piuz.200990107 VL - 40 IS - 6 SP - 275 EP - 275 ER - TY - JOUR A1 - Oertel, Christian A1 - Liu, Zhe A1 - Zhou, Fuqiang A1 - Wei, Yintao T1 - Three-dimensional vibration of a ring with a noncircular cross-section on an elastic foundation JF - Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science KW - Vibration of rings KW - modal analysis KW - three-dimensional ring model KW - elastic foundation KW - radial tires Y1 - 2018 U6 - https://doi.org/10.1177/0954406217720823 VL - 232 IS - 13 SP - 2381 EP - 2393 ER - TY - CHAP A1 - Kramann, Guido T1 - Modulo KW - algorithmic composition KW - arithmetic operations KW - realtime composition KW - live coding Y1 - 2019 UR - https://hal.archives-ouvertes.fr/hal-02382500/file/Proceedings_CMMR2019.pdf#page=994 SP - 993 EP - 999 ER - TY - JOUR A1 - Widjaja, Agnes S. N. A1 - Löwe, Katharina A1 - Costa, Felipe Salerno T1 - Design and simulation of a concentrated solar thermal system with an integrated concrete storage for continuous heat supply JF - Energy Procedia KW - Concentrated solar thermal system KW - process heat supply KW - Concrete storage KW - Economic feasibility Study Y1 - 2018 U6 - https://doi.org/10.1016/j.egypro.2018.11.062 VL - 155 SP - 121 EP - 135 ER - TY - CHAP A1 - Wieneke-Toutaoui, Burghilde A1 - Schmütz, Jörg A1 - Fritz, Alfred Herbert T1 - Urformen T2 - Fertigungstechnik KW - Fertigungstechnik Y1 - 2018 SN - 978-3-662-56534-6 SN - 978-3-662-56535-3 U6 - https://doi.org/10.1007/978-3-662-56535-3_2 SP - 7 EP - 132 PB - Springer Vieweg CY - Berlin / Heidelberg ET - 12 ER - TY - CHAP A1 - Kramann, Guido T1 - Generative Grammar Based on Arithmetic Operations for Realtime Composition T2 - Proc. of the 14th International Symposium on CMMR, Marseille, France, Oct. 14-18, 2019 KW - algorithmic composition KW - phenomenology KW - arithmetic operations KW - realtime composition KW - live coding KW - Edmund Husserl KW - notation system Y1 - 2019 UR - https://hal.archives-ouvertes.fr/hal-02382500/document#page=352 SP - 346 EP - 360 ER - TY - INPR A1 - Vogel, Sven K. A1 - Wölfer, Christian A1 - Ramirez-Diaz, Diego A. A1 - Flassig, Robert J. A1 - Sundmacher, Kai A1 - Schwille, Petra T1 - Symmetry breaking and emergence of directional flows in minimal actomyosin cortices KW - bottom-up synthetic biology KW - motor proteins KW - pattern formation KW - self-organization Y1 - 2020 UR - https://www.preprints.org/manuscript/202004.0008/v1 U6 - https://doi.org/10.20944/preprints202004.0008.v1 ER - TY - THES A1 - Ghazi, Muhammad Hizri T1 - Marktrecherche zur Ladesäulen hinsichtlich Wirtschaftlichkeit und Marktverfügbarkeit N2 - In den vergangenen Jahren gewann insbesondere durch den Launch des Tesla Elektrofahrzeugs die Elektromobilität in Bezug auf Automobile zunehmend an Bedeutung. Insbesondere aufgrund der zunehmenden CO2-Emissionen sowie der stetig steigenden Öl-Knappheit rückt das Elektroauto zunehmend in den Vordergrund. Die vorliegende wissenschaftliche Arbeit untersuchte im Wesentlichen die Ladeinfrastruktur von Elektrofahrzeug sowie die Entwicklung dieser und die zum aktuellen Zeitpunkt bestehenden Tarifbedingung in Deutschland. Die Betrachtung der Ladeinfrastruktur ist eben aus dem Grund erforderlich gewesen, da diese eine Schlüsselrolle für Endkunden bei der Kaufentscheidung eines Elektrofahrzeugs spielt. Die Wesentliche Zielsetzung der Arbeit bestand darin, die unterschiedlichen bestehenden Betreiberkonzepte in Bezug auf die Ladeinfrastruktur für Kommunen zu analysieren und im Hinblick auf die Wirtschaftlichkeit sowie die Marktverfügbarkeit zu evaluieren. Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:522-opus4-26641 CY - Brandenburg an der Havel ER - TY - CHAP A1 - Kramann, Guido ED - Kronland-Martinet, Richard T1 - Generative Grammar Based on Arithmetic Operations for Realtime Composition T2 - Perception, Representations, Image, Sound, Music : 14th International Symposium, CMMR 2019, Marseille, France, October 14–18, 2019 T3 - Lecture notes in computer science - 12631 KW - Algorithmic composition KW - Phenomenology KW - Arithmetic operations KW - Realtime composition KW - Live coding KW - Edmund Husserl KW - Notation system Y1 - 2021 SN - 978-3-030-70210-6 U6 - https://doi.org/10.1007/978-3-030-70210-6_19 SP - 279 EP - 303 PB - Springer CY - Cham ER - TY - JOUR A1 - Agafonova, D. S. A1 - Kozyrev, A. B. A1 - Mukhin, N. V. A1 - Red'ka, D. N. A1 - Elanskaya, G. K. A1 - Rudenko, M. V. A1 - Oseev, A. A1 - Hirsch, Sören T1 - Impurity Phases in Polycrystalline Films of Ferroelectric Oxides of the Perovskite-Type on the Basis of Bi2SrTa2O9 and Pb(Zr,Ti)O3 JF - Glass Physics and Chemistry KW - complex oxides KW - perovskites KW - heterophase films KW - nonstoichiometry Y1 - 2018 U6 - https://doi.org/10.1134/S1087659618010029 VL - 44 IS - 1 SP - 15 EP - 20 ER - TY - JOUR A1 - Oseev, Aleksandr A1 - Mukhin, Nikolay A1 - Lucklum, Ralf A1 - Zubtsov, Mikhail A1 - Schmidt, Marc-Peter A1 - Steinmann, Ulrike A1 - Fomin, Aleksandr A1 - Kozyrev, Andrey A1 - Hirsch, Sören T1 - Study of liquid resonances in solid-liquid composite periodic structures (phononic crystals) – theoretical investigations and practical application for in-line analysis of conventional petroleum products JF - Sensors and Actuators B: Chemical KW - Phononic crystal sensor KW - Periodic composite structure KW - Ultrasonic sensor KW - Gasoline sensor KW - Petroleum sensor KW - In-line fuel sensor Y1 - 2018 U6 - https://doi.org/10.1016/j.snb.2017.10.144 VL - 257 SP - 469 EP - 477 ER - TY - CHAP A1 - Richards, A. A1 - Hübner, M. A1 - Vollmer, Michael ED - Holst, Gerald C. T1 - Measurements of SWIR backgrounds using the swux unit of measure T2 - Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXIX : 17-18 April 2018, Orlando, Florida, United States T3 - Proceedings of SPIE - 10625 KW - Short wave infrared radiation KW - Sensors KW - Light sources and illumination KW - Cameras KW - Sun KW - Calibration Y1 - 2018 U6 - https://doi.org/10.1117/12.2305282 PB - SPIE CY - Bellingham, Washington, USA ER - TY - JOUR A1 - Ptashnik, Sergey V. A1 - Mikhailov, Anatoliy K. A1 - Yastrebov, Alexander V. A1 - Petrov, Peter K. A1 - Liu, Wei A1 - McN Alford, Neil A1 - Hirsch, Soeren A1 - Kozyrev, Andrey B. T1 - Ferroelectric thin film acoustic devices with electrical multiband switching ability JF - Scientific Reports KW - Electrical and electronic engineering KW - Electronic and spintronic devices Y1 - 2017 U6 - https://doi.org/10.1038/s41598-017-14895-8 VL - 7 IS - 15289 ER - TY - JOUR A1 - Oseev, Aleksandr A1 - Lucklum, Ralf A1 - Zubtsov, Mikhail A1 - Schmidt, Marc-Peter A1 - Mukhin, Nikolay V. A1 - Hirsch, Soeren T1 - SAW-Based Phononic Crystal Microfluidic Sensor—Microscale Realization of Velocimetry Approaches for Integrated Analytical Platform Applications JF - Sensors KW - phononic crystal KW - liquid sensor KW - ultrasonic velocimetry KW - μTAS Y1 - 2017 U6 - https://doi.org/10.3390/s17102187 VL - 17 IS - 10 SP - 2187 ER - TY - JOUR A1 - Redka, D. A1 - Mukhin, N. A1 - Grishkanich, A. A1 - Terukov, E. A1 - Hirsch, Sören A1 - Ignateva, L. T1 - NdYAG surface modification of ZnO for solar cells JF - Journal of Physics: Conference Series Y1 - 2019 U6 - https://doi.org/10.1088/1742-6596/1410/1/012106 VL - 1410 SP - 012106 PB - IOP Publishing ER - TY - JOUR A1 - Kurachkina, Margarita A1 - Konshina, Elena A1 - Oseev, Aleksandr A1 - Hirsch, Sören T1 - Hybrid structures based on gold nanoparticles and semiconductor quantum dots for biosensor applications JF - Nanotechnology Science and Applications Y1 - 2018 U6 - https://doi.org/10.2147/nsa.s155045 VL - 11 SP - 15 EP - 21 ER - TY - JOUR A1 - Liefold, Marius A1 - Wagner, Dennis A1 - Pokraka, Alexander A1 - Schrader, Thomas T1 - Low-Cost Medical Infrastructure: Triage as intelligent decision support JF - Electronic Imaging, Mobile Devices and Multimedia: Enabling Technologies, Algorithms, and Applications Y1 - 2018 U6 - https://doi.org/10.2352/ISSN.2470-1173.2018.06.MOBMU-116 SP - 116-1 EP - 116-4 PB - Society for Imaging Science and Technology ER - TY - JOUR A1 - Mukhin, N.V. A1 - Redka, D. N. A1 - Tarasov, S. A. A1 - Oseev, A. Yu. A1 - Hirsch, Sören T1 - Two-Dimensional Periodic Composite Structure for Acoustic Sensor of Volumetric Properties of Liquids T1 - Dvumernaja periodičeskaja kompozitnaja struktura dlja akustičeskogo datčika ob"emnych svojstv židkosti JF - Journal of the Russian Universities. Radioelectronics JF - Izvestija vysšich učebnych zavedenij Rossii : radioėlektronika Y1 - 2018 U6 - https://doi.org/10.32603/1993-8985-2018-21-1-56-63 IS - 1 SP - 56 EP - 63 ER - TY - CHAP A1 - Redka, D. A1 - Mukhin, N. A1 - Grishkanich, A. A1 - Terukov, E. A1 - Hirsch, Sören T1 - Surface modification of ZnO for solar converters by NdYaG Laser T2 - International Conference Laser Optics (ICLO), St. Petersburg, 2018 Y1 - 2018 U6 - https://doi.org/10.1109/LO.2018.8435248 SP - 340 EP - 340 PB - IEEE ER - TY - JOUR A1 - Oseev, Aleksandr A1 - Mukhin, Nikolay V. A1 - Lucklum, Ralf A1 - Zubtsov, Mikhail A1 - Schmidt, Marc-Peter A1 - Redka, Dmitrii A1 - Kozyrev, Andrey A1 - Hirsch, Sören T1 - Towards macroporous phononic crystal based structures for FBAR applications. Theoretical investigation of technologically competitive solutions JF - Microsystem Technologies Y1 - 2018 U6 - https://doi.org/10.1007/s00542-017-3616-1 VL - 24 IS - 5 SP - 2389 EP - 2399 ER - TY - CHAP A1 - Elbagoury, B. M. A1 - Shalhoub, M. B. H. B. A1 - Roushdy, M. I. A1 - Schrader, Thomas ED - Le, Dac-Nhuong T1 - State of the Art: Artificial Intelligent Technologies for Mobile Health of Stroke Monitoring and Rehabilitation Robotics Control T2 - Emerging Technologies for Health and Medicine KW - Mobile Health KW - Telemedicine Robot Rehabilitation KW - Case.based Reasoning Y1 - 2018 SN - 9781119509813 (Print) SN - 9781119509875 (Online) U6 - https://doi.org/10.1002/9781119509875.ch7 SP - 87 EP - 101 PB - Scrivener Publishing ; Wiley CY - Beverly, MA ; Hoboken, NJ ER - TY - JOUR A1 - Kombe, Emmanuel Yeri A1 - Lang'at, Nickson A1 - Njogu, Paul A1 - Malessa, Reiner A1 - Weber, Christian-Toralf A1 - Njoka, Francis A1 - Krause, Ulrich T1 - Process modeling and evaluation of optimal operating conditions for production of hydrogen-rich syngas from air gasification of rice husks using aspen plus and response surface methodology JF - Bioresource Technology N2 - Biomass gasification is recognized as a viable avenue to accelerate the sustainable production of hydrogen. In this work, a numerical simulation model of air gasification of rice husks is developed using the Aspen Plus to investigate the feasibility of producing hydrogen-rich syngas. The model is experimentally validated with rice husk gasification results and other published studies. The influence of temperature and equivalence ratio on the syngas composition, H2 yield, LHVSyngas, H2/CO ratio, CGE, and PCG was studied. Furthermore, the synchronized effects of temperature and ER are studied using RSM to determine the operational point of maximizing H2 yield and PCG. The RSM analysis results show optimum performance at temperatures between 820 °C and 1090 °C and ER in the range of 0.06–0.10. The findings show that optimal operating conditions of the gasification system can be achieved at a more refined precision through simulations coupled with advanced optimization techniques. Y1 - 2022 UR - https://linkinghub.elsevier.com/retrieve/pii/S096085242201063X SN - 0960-8524 VL - 361 SP - 1 EP - 11 PB - Elsevier ER - TY - JOUR A1 - Ruzankina, Iuliia A1 - Mukhin, Nikolay A1 - Mermoul, Ali A1 - Parfenov, Vadim A1 - Fron, Eduard A1 - Ferrini, Gabriele T1 - Surface optical sensitivity enhanced by a single dielectric microsphere JF - Optics Express N2 - Single dielectric microspheres can manipulate light focusing and collection to enhance optical interaction with surfaces. To demonstrate this principle, we experimentally investigate the enhancement of the Raman signal collected by a single dielectric microsphere, with a radius much larger than the exciting laser spot size, residing on the sample surface. The absolute microsphere-assisted Raman signal from a single graphene layer measured in air is more than a factor of two higher than that obtained with a high numerical aperture objective. Results from Mie’s theory are used to benchmark numerical simulations and an analytical model to describe the isolated microsphere focusing properties. The analytical model and the numerical simulations justify the Raman signal enhancement measured in the microsphere-assisted Raman spectroscopy experiments. Y1 - 2022 UR - https://doi.org/10.1364/OE.472720 VL - 30 IS - 24 SP - 43021 EP - 43036 PB - Optica ER - TY - RPRT A1 - Schugardt, Alexander T1 - Untersuchung der Rotorfestigkeit von permanenterregten Synchronmaschinen mit vergrabenen Magneten N2 - Diese Projektarbeit behandelt die mechanische Simulation der Rotoren von permanenterregten Synchronmaschinen für den Festigkeitsnachweis. Hierzu wird die Finite-Elemente-Methode mit dem Programm CalculiX verwendet. Als Beispiel wird der Elektromotor des Toyota Prius II im Detail betrachtet. Hierbei werden die unterschiedlichen Lasten modelliert, dazu zählen neben der Zentrifugalkraft auch der Innendruck durch eine Presspassung sowie die elektromagnetischen Kräfte. Für die Modellierung von Kräften auf der Rotoroberfläche wird eine Methodik zur Umsetzung in CalculiX entwickelt und anhand eines Beispielmodells demonstriert. Der angestrebte Festigkeitsnachweis kann im Rahmen dieser Arbeit erbracht werden. Weiterhin wird gezeigt, dass der Einfluss der elektromagnetischen Kräfte im Arbeitspunkt mit der höchsten Drehzahl sehr gering ausfällt. Insgesamt bietet diese Arbeit die Grundlagen für mechanische Modellierungen von Rotoren unter Berücksichtigung aller Kräfte. Dies kann direkt auf andere Elektromotoren angewendet werden. KW - Rotor KW - Finite-Elemente-Methode KW - Elektromotor Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:522-opus4-29610 PB - Technische Hochschule Brandenburg CY - Brandenburg an der Havel ER - TY - JOUR A1 - Uhl, Roland T1 - Charakterisierung des Erwartungswertes am Graphen der Verteilungsfunktion N2 - Der Erwartungswert einer Zufallsgröße kann generell am Graphen ihrer Verteilungsfunktion durch eine naheliegende Gleichheit zweier Flächeninhalte festgelegt werden. Äquivalent dazu lässt er sich mit zwei uneigentlichen Riemann-Integralen darstellen. Davon ausgehend werden die Tschebyschow-Ungleichung und ihre Modifikation mit strikten Ungleichheitszeichen hergeleitet. KW - Erwartungswert KW - Verteilungsfunktion KW - Čebyšev-Ungleichung KW - Wahrscheinlichkeitsrechnung KW - Tschebyschow-Ungleichung KW - Zufallsgröße Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:522-opus4-29862 PB - Technische Hochschule Brandenburg CY - Brandenburg an der Havel ER - TY - CHAP A1 - Vogel, Mathias A1 - Goschin, Tobias A1 - Flassig, Robert T1 - Techno-economic analysis of excess wind energy utilization in the energy supply of residential quarters T2 - Konferenz: Symposium on Control of Power and Energy Systems (CPES), 2022/ Konferenzband:11th IFAC Symposium on Control of Power and Energy Systems (CPES 2022) Y1 - 2022 UR - https://www.sciencedirect.com/science/article/pii/S2405896322004529 SN - 978-1-71385-937-6 U6 - https://doi.org/10.32479/ijeep.8067 PB - Elsevier ER - TY - CHAP A1 - Kramann, Guido T1 - Of renouncing to do something grandiose T2 - Konferenz: X ubimus - Ubiquitous Music Workshop 2020, Online, 2020/ Konferenzband: Proceedings of the 10th Workshop on Ubiquitous Music (UbiMus); November 9 - 13, 2020 (online) N2 - A central idea of ubiquitous music is that music does not arise from the ideas of an isolated genius, but rather from the interaction of several participants [Keller et al. 2014]. But this requires a certain amount of restraint on the part of the designers of the respective setting and at the same time seems to require a full disclosure of the underlying theoretical and aesthetic concepts to the participants, if the participants are really to be taken seriously and given the means to actually be able to become creative themselves in an understandable way within the given context. In this paper, the consequences of such a demand are first discussed theoretically. Finally, for the concept developed by the author, ”Every human being can compose on the basis of natural numbers”, an attempt is made in this specific case to determine in what form such a concept could be passed on in order to meet the above criteria. Y1 - 2020 UR - https://zenodo.org/record/4246025 SN - 978-65-00-10188-1 U6 - https://doi.org/10.5281/zenodo.4246025 SP - 21 EP - 35 PB - Zenodo CY - Online ER - TY - GEN A1 - Das, Atanu A1 - Chaurasia, Prashtan Kumar A1 - Mandal, Gopi K. A1 - Goecke, Sven-Frithjof A1 - De, Amitava T1 - Sample calculations to estimate joint distortion based on the published article "Analytical Estimation of Thermomechanical Distortion and Interface Layer Thickness for Gas Metal Arc Lap Joining of Dissimilar Sheets" N2 - A sample set of calculations is presented in this supplemental document to analytically estimate joint distortion for gas metal arc lap joining of aluminum and steel thin sheets following the published article "Analytical Estimation of Thermomechanical Distortion and Interface Layer Thickness for Gas Metal Arc Lap Joining of Dissimilar Sheets" Y1 - 2023 ER - TY - JOUR A1 - Das, Atanu A1 - Chaurasia, Prashtan Kumar A1 - Mandal, Gopi K. A1 - Goecke, Sven-Frithjof A1 - De, Amitava T1 - Analytical estimation of thermomechanical distortion and interface layer thickness for gas metal arc lap joining of dissimilar sheets JF - Welding in the World Y1 - 2023 U6 - https://doi.org/10.1007/s40194-01426-x SN - 432288 IS - 76/2023 SP - 33 EP - 49 PB - Springer Link ER - TY - JOUR A1 - Chaurasia, Prashtan Kumar A1 - Goecke, Sven-Frithjof A1 - De, Amitava T1 - Monitoring melt pool asymmetry in gas metal arc-directed energy deposition JF - Science and Technology of Welding and Joining Y1 - 2023 U6 - https://doi.org/10.1080/13621718.2023.2168933 SN - 1362-1718 (PRINT) IS - Augabe 5/ Band 28 SP - 424 EP - 432 PB - Taylor and Fracis ER - TY - CHAP A1 - Eichstädt, Justus ED - Götze, Bettina ED - Mertens, Joachim T1 - Rathenow: Wiege der optischen Industrie T2 - Rathenow: Wiege der optischen Industrie: zur Entwicklung der Rathenower optischen Industrie von ihren Anfängen bis zur Gegenwart Y1 - 2020 SN - 978-3-947215-67-6 PB - VBB, Verlag für Berlin-Brandenburg CY - Berlin ET - 1. ER - TY - JOUR A1 - Chaurasia, Prashant Kumar A1 - Goecke, Sven Frithjof A1 - De, Amitava T1 - Towards real-time monitoring of metal transfer and melt pool temperature field in gas metal arc directed energy deposition JF - Welding in the World N2 - Large three-dimensional metallic parts can be printed layer-by-layer using gas metal arc directed energy deposition (GMA-DED) process at a high deposition rate and with little or no material wastage. Fast responsive real-time monitoring of GMA-DED process signatures and their transient variations is required for printing of dimensionally accurate and structurally sound parts. A systematic experimental investigation is presented here on multi-layer GMA-DED with two different scanning strategies using a high strength low alloy (HSLA) filler wire. The dynamic metal transfer, melt pool temperature field and its longitudinal cross-section, and arc voltage and current are monitored synchronously. The transient arc heat input and the melt pool solidification cooling rate are estimated from the monitored signals. The layer-wise variations of the melt pool dimension, surface temperature profile, thermal cycles, and solidification cooling rate are examined for different scanning strategies. It is comprehended that the part defects can be minimized, and the mass production of zero-defect parts can be achieved in GMA-DED process with synchronized monitoring and assessment of the real-time process signatures. Y1 - 2023 UR - https://link.springer.com/article/10.1007/s40194-023-01534-2 U6 - https://doi.org/https://doi.org/10.1007/s40194-023-01534-2 IS - 67 SP - 1781 EP - 1791 PB - Springer Link ER - TY - JOUR A1 - Revina, Aleksandra A1 - Aksu, Ünal T1 - An approach for analyzing business process execution complexity based on textual data and event log JF - Information Systems N2 - With the advent of digital transformation, organizations increasingly rely on various information systems to support their business processes (BPs). Recorded data, including textual data and event log, expand exponentially, complicating decision-making and posing new challenges for BP complexity analysis in Business Process Management (BPM). Herein, Process Mining (PM) serves to derive insights based on historic BP execution data, called event log. However, in PM, textual data is often neglected or limited to BP descriptions. Therefore, in this study, we propose a novel approach for analyzing BP execution complexity by combining textual data serving as an input at the BP start and event log. The approach is aimed at studying the connection between complexities obtained from these two data types. For textual data-based complexity, the approach employs a set of linguistic features. In our previous work, we have explored the design of linguistic features favorable for BP execution complexity prediction. Accordingly, we adapt and incorporate them into the proposed approach. Using these features, various machine learning techniques are applied to predict textual data-based complexity. Moreover, in this prediction, we show the adequacy of our linguistic features, which outperformed the linguistic features of a widely-used text analysis technique. To calculate event log-based complexity, the event log and relevant complexity metrics are used. Afterward, a correlation analysis of two complexities and an analysis of the significant differences in correlations are performed. The results serve to derive recommendations and insights for BP improvement. We apply the approach in the IT ticket handling process of the IT department of an academic institution. Our findings show that the suggested approach enables a comprehensive identification of BP redesign and improvement opportunities. Y1 - 2023 UR - https://www.sciencedirect.com/science/article/pii/S0306437923000200?via%3Dihub U6 - https://doi.org/10.1016/j.is.2023.102184 IS - 114 PB - Elsevier ER - TY - CHAP A1 - Revina, Aleksandra A1 - Rizun, Nina A1 - Aksu, Ünal T1 - Towards a Framework for Context Awareness Based on Textual Process Data: Case Study Insights T2 - Lecture Notes in Business Information Processing N2 - Context awareness is critical for the successful execution of processes. In the abundance of business process management (BPM) research, frameworks exclusively devoted to extracting context from textual process data are scarce. With the deluge of textual data and its increasing value for organizations, it becomes essential to employ relevant text analytics techniques to increase the awareness of process workers, which is important for process execution. The present paper addresses this demand by developing a framework for context awareness based on process executions-related textual data using a well-established layered BPM context model. This framework combines and maps various text analytics techniques to the layers of the context model, aiming to increase the context awareness of process workers and facilitate informed decision-making. The framework is applied in an IT ticket processing case study. The findings show that contextual information obtained using our framework enriches the awareness of process workers regarding the process instance urgency, complexity, and upcoming tasks and assists in making decisions in terms of these aspects. Y1 - 2023 SN - 978-3-031-26885-4 (Print) 978-3-031-26886-1 (online) U6 - https://doi.org/https://doi.org/10.1007/978-3-031-26886-1_2 IS - 466 PB - Springer Cham ER - TY - CHAP A1 - Platonov, R. A. A1 - Altynnikov, A. G. A1 - Mikhailov, A. K. A1 - Yastrebov, A. V. A1 - Mukhin, N. V. A1 - Hirsch, Sören A1 - Kozyrev, A. B. T1 - Tunable impedance microwave matching of laser diodes T2 - Konferenz: 2017 Progress In Electromagnetics Research Symposium - Spring (PIERS)/ Titel: 2017 Progress In Electromagnetics Research Symposium - Spring (PIERS) Y1 - 2017 UR - http://ieeexplore.ieee.org/document/8261920/ SN - 978-1-5090-6269-0 U6 - https://doi.org/10.1109/PIERS.2017.8261920 SP - 1152 EP - 1157 PB - IEEE CY - St Petersburg, Russia ER - TY - CHAP A1 - Goecke, Sven-Frithjof A1 - Seefeld, T. A1 - Tyralla, Dieter A1 - Krug, A. T1 - Monitoring and Control of the Heat Input in MAG-Laser-Hybrid Welding of High Strength Steel in Telescopic Crane Booms T2 - Konferenz: IEEE International Conference on Automation Science and Engineering (CASE), 2019/ Titel: 2019 IEEE 15th International Conference on Automation Science and Engineering (CASE): August 22-26, 2019, Vancouver, BC, Canada Y1 - 2019 SN - 978-1-72810-355-6 U6 - https://doi.org/10.1109/COASE.2019.8843219 PB - IEEE CY - Piscataway, New Jersey ER - TY - JOUR A1 - Vollmer, Michael T1 - The freezing of lakes in winter JF - European Journal of Physics N2 - Freezing of lakes is described using a simplified one-dimensional model, which gives ice thickness, ice growth rates, and ice surface temperature as a function of time. Model data for a specific lake with known meteorological conditions are compared to estimated ice thickness using a simple optical method. Finally, more advanced potential students projects are briefly discussed and results of a numerical solution are compared to the simplified model. Y1 - 2019 UR - https://iopscience.iop.org/article/10.1088/1361-6404/ab07f8 U6 - https://doi.org/10.1088/1361-6404/ab07f8 SN - 1367-2630 IS - Ausgabe: 3/ Band: 40 PB - IOP Publishing ER - TY - JOUR A1 - Vollmer, Michael A1 - Mustard, Alexander T1 - Blue - the color of (pure) water JF - Physics Education N2 - Water can exhibit many different colors due to a variety of physical properties. Here, we focus on some observable colors within very pure freshwater. We only treat the absorption of light due to electronic and ro-vibrational excitations and scattering due to refractive index fluctuations of the water and the respective consequences for the appearance of colors. Y1 - 2019 UR - https://iopscience.iop.org/article/10.1088/1361-6552/ab130a U6 - https://doi.org/10.1088/1361-6552/ab130a SN - 0031-9120 (print) 1361-6552 (online) IS - Ausgabe: 4/ Band: 54 PB - IOP Publishing ER - TY - CHAP A1 - Schmidt, Marc-Peter A1 - Oseev, Aleksandr A1 - Engel, C. A1 - Brose, Andreas A1 - Aman, Alexander A1 - Hirsch, Sören T1 - A Novel Design and Fabrication of Multichannel Microfluidic Impedance Spectroscopy Sensor for Intensive Electromagnetic Environment Application T2 - Konferenz: The 28th European Conference on Solid-State Transducers (EUROSENSORS)/ Titel: Procedia Engineering 2014 Y1 - 2014 UR - https://linkinghub.elsevier.com/retrieve/pii/S187770581402387X U6 - https://doi.org/10.1016/j.proeng.2014.11.272 IS - 87 SP - 88 EP - 91 PB - Elsevier CY - Brescia, Italy ER - TY - CHAP A1 - Schmidt, Marc-Peter A1 - Oseev, Alexander A1 - Engel, C. A1 - Brose, Andreas A1 - Hirsch, Sören T1 - IMPEDANCE SPECTROSCOPY MICROFLUIDIC MULTICHANNEL SENSOR PLATFORM FOR LIQUID ANALYSIS T2 - Konferenz: International Conference on Miniaturized Systems for Chemistry and Life Sciences/ Titel: 18th International Conference on Miniaturized Systems for Chemistry and Life Sciences : (MicroTAS 2014); San Antonio, Texas, USA, 26 - 30 October 2014 / [CBMS] ; Vol. 4 Y1 - 2014 UR - http://rgdoi.net/10.13140/2.1.4254.8004 SN - 978-1-63439-697-4 U6 - https://doi.org/10.13140/2.1.4254.8004 IS - 4 SP - 1957 EP - 2577 PB - Curran CY - Red Hook, NY ER - TY - JOUR A1 - Schmidt, Marc-Peter A1 - Aman, Alexander A1 - Majcherek, Sören A1 - Hirsch, Sören T1 - Microwave Sensor for Mechanical Stress Measurement Based on Ferroelectric Graphene Nanosheet Composites JF - Procedia Engineering Y1 - 2014 UR - https://linkinghub.elsevier.com/retrieve/pii/S1877705814025144 U6 - https://doi.org/10.1016/j.proeng.2014.11.399 SN - 18777058 SP - 124 EP - 127 PB - Elsevier ER - TY - RPRT A1 - Goecke, Sven-Frithjof A1 - Müller, Alexander A1 - Ebert-Spiegel, Michael T1 - ECOWELD - Energiegeregeltes Metallschutzgas- und Laserschweißen : "Ingenieurnachwuchs" 2011 (Maschinenbau) : Ausschreibung der Förderlinie "Qualifizierung von Ingenieurnachwuchs an Fachhochschulen" 2011 im Rahmen des Programms "Forschung an Fachhochschulen" : Schlussbericht : Laufzeit des Vorhabens von: 01.08.2011 bis: 31.03.2015 Y1 - 2015 U6 - https://doi.org/10.2314/GBV:867121742 ER - TY - CHAP A1 - Schmidt, Marc-Peter A1 - Oseev, Aleksandr A1 - Engel, Christian A1 - Brose, Andreas A1 - Hirsch, Sören T1 - A7.1 - Flexible free-standing SU-8 microfluidic impendance spectroscopy sensor for 3D molded interconnect devices application T2 - Konferenz: AMA Conferences 2015/ Titel: Proceedings SENSOR 2015 Y1 - 2015 UR - http://www.ama-science.org/doi/10.5162/sensor2015/A7.1 SN - 978-3-9813484-8-4 U6 - https://doi.org/10.5162/sensor2015/A7.1 SP - 151 EP - 155 PB - AMA Service GmbH CY - Nürnberg, Germany ER - TY - CHAP A1 - Schmidt, Marc-Peter A1 - Oseev, Aleksandr A1 - Lucklum, Ralf A1 - Hirsch, Sören ED - Sánchez-Rojas, José Luis ED - Brama, Riccardo T1 - Technology towards a SAW based phononic crystal sensor T2 - Konferenz: SPIE Microtechnologies, Barcelona, Spain, 2015/ Titel: PROCEEDINGS VOLUME 9517 SPIE MICROTECHNOLOGIES | 4-6 MAY 2015 Smart Sensors, Actuators, and MEMS VII; and Cyber Physical Systems Y1 - 2015 UR - http://proceedings.spiedigitallibrary.org/proceeding.aspx?doi=10.1117/12.2178810 U6 - https://doi.org/10.1117/12.2178810 ER - TY - CHAP A1 - Brämer, Stefan A1 - Vieback, Linda A1 - Schiller, Gregor A1 - Hirsch, Sören T1 - Situiertes Lernen in der dualen Berufsausbildung. Entwicklung eines Lehr-Lern-Arrangements für den Ausbildungsinhalt „Sicherheit und Gesundheitsschutz bei der Arbeit“ T2 - Konferenz: 61. GfA-Frühjahrskongress, 2015/ Titel: Verantwortung für die Arbeit der Zukunft 61. GfA-Frühjahrskongress, 25. - 27.02.2015, Karlsruhe Y1 - 2015 SN - 978-3-936804-18-8 PB - GfA-Press CY - Dortmund ER - TY - CHAP A1 - Oseev, Aleksandr A1 - Schmidt, Marc-Peter A1 - Lucklum, Ralf A1 - Zubtsov, Mikhail A1 - Hirsch, Sören T1 - Phononic crystal based liquid sensor governed by localized defect resonances T2 - Konferenz: IEEE Symposium (IUS) Ultrasonics, 2015/ Titel: 2015 IEEE International Ultrasonics Symposium (IUS) Y1 - 2015 UR - http://ieeexplore.ieee.org/document/7329492/ SN - 978-1-4799-8182-3 U6 - https://doi.org/10.1109/ULTSYM.2015.0053 SP - 1 EP - 4 PB - IEEE CY - Taipei, Taiwan ER - TY - JOUR A1 - Majcherek, Soeren A1 - Aman, A. A1 - Hirsch, Sören A1 - Schmidt, B. T1 - Silicon based in-situ measurement system for flex loads on MLCCs in PCB manufacturing chain JF - Sensors and Actuators A: Physical Y1 - 2015 UR - https://linkinghub.elsevier.com/retrieve/pii/S092442471530025X U6 - https://doi.org/10.1016/j.sna.2015.06.005 SN - 09244247 IS - 233 SP - 267 EP - 274 PB - Elsevier ER - TY - JOUR A1 - Aman, Alexander A1 - Majcherek, Soeren A1 - Hirsch, Sören T1 - Microwave Emission of Carbon Fibres During Electrical Breakdown JF - Sensor Letters Y1 - 2015 UR - http://openurl.ingenta.com/content/xref?genre=article&issn=1546-198X&volume=13&issue=1&spage=98 U6 - https://doi.org/10.1166/sl.2015.3408 SN - 1546198X, 15461971 IS - Ausgabe: 1/ Heft: 13 SP - 98 EP - 101 PB - American Scientific Publishers ER - TY - CHAP A1 - Schmidt, Marc-Peter A1 - Oseev, Aleksandr A1 - Lucklum, Ralf A1 - Zubtsov, Mikhail A1 - Hirsch, Sören T1 - SAW based phononic crystal liquid sensor - Periodic microfluidic channels approach T2 - Konferenz: 2016 IEEE International Ultrasonics Symposium (IUS)/ Titel:2016 IEEE International Ultrasonics Symposium (IUS) N2 - Phononic crystals (PnC) with a specifically designed liquid-filled defect have been recently introduced as a novel sensor platform (Lucklum et al. in Sens Actuators B Chem 171–172:271–277, 2012). Sensors based on this principle feature a band gap covering the typical input span of the measurand as well as a narrow transmission peak within the band gap where the frequency of maximum transmission is governed by the measurand. This approach has been applied for determination of volumetric properties of liquids (Lucklum et al. in Sens Actuators B Chem 171–172:271–277, 2012; Oseev et al. in Sens Actuators B Chem 189:208–212, 2013; Lucklum and Li in Meas Sci Technol 20(12):124014, 2009) and has demonstrated attractive sensitivity. One way to improve sensitivity requires higher probing frequencies in the range of 100 MHz and above. In this range surface acoustic wave (SAW) devices are an established basis for sensors. We have performed first tests towards a PnC microsensors (Lucklum et al. in Towards a SAW based phononic crystal sensor platform. In: 2013 Joint European frequency and time forum and international frequency control symposium (EFTF/IFC), pp 69–72, 2013). The respective feature size of the PnC SAW sensor has dimensions in the range of 10 µm and below. Whereas those dimensions are state of the art for common MEMS materials, etching of holes and cavities in piezoelectric materials that have an aspect ratio diameter/depth is still challenging. In this contribution we describe an improved technological process able to realize considerably deep and uniform holes in a SAW substrate. Y1 - 2016 UR - http://ieeexplore.ieee.org/document/7728788/ SN - 978-1-4673-9897-8 U6 - https://doi.org/10.1109/ULTSYM.2016.7728788 SP - 1 EP - 4 PB - IEEE CY - Tours, France ER - TY - CHAP A1 - Fomina, Marina A. A1 - Koshuro, Vladimir A. A1 - Fomin, Aleksandr A. A1 - Rodionov, Igor V. A1 - Skaptsov, Aleksandr A. A1 - Zakharevich, Andrey M. A1 - Aman, Alexander A1 - Oseev, Aleksandr A1 - Hirsch, Sören A1 - Majcherek, Soeren ED - Tuchin, Valery V. ED - Derbov, Vladimir L. ED - Postnov, Dmitry E. ED - Meglinski, Igor V. ED - Larin, Kirill V. ED - Pravdin, Alexander B. ED - Genina, Elina A. T1 - Peculiarities of structure formation of layered metal-oxide system Ti-Ta-(Ti,Ta) x O y during electro-spark alloying and thermally stimulated modification T2 - Konferenz: Saratov, Russian Federation/ Titel: PROCEEDINGS VOLUME 9917 SARATOV FALL MEETING 2015 | 22-25 SEPTEMBER 2015 Saratov Fall Meeting 2015: Third International Symposium on Optics and Biophotonics and Seventh Finnish-Russian Photonics and Laser Symposium (PALS) N2 - The study focuses on high-performance combined electro-spark alloying of titanium and titanium alloy (VT1-0, VT16) surface and porous matrix structure oxidation. The metal-oxide coatings morphology is the result of melt drop transfer, heat treatment, and oxidation. The study establishes the influence of technological regimes of alloying and oxidation on morphological heterogeneity of biocompatible layered metal-oxide system Ti-Ta-(Ti,Ta)xOy. It was found that during electro-spark alloying the concentration of tantalum on the titanium surface ranges from 0.1 to 3.2 at.%. Morphology of the deposited splats is represented by uniformly grown crystals of titanium and tantalum oxides, which increase from nano- to submicron size. Y1 - 2016 UR - http://proceedings.spiedigitallibrary.org/proceeding.aspx?doi=10.1117/12.2229491 U6 - https://doi.org/10.1117/12.2229491 PB - SPIE. Digital Library CY - Saratov, Russian Federation ER - TY - JOUR A1 - Lucklum, Ralf A1 - Zubtsov, Mikhail A1 - Oseev, Aleksandr A1 - Schmidt, Marc-Peter A1 - Hirsch, Sören T1 - SAW Based Sandwich Phononic Crystal Sensor JF - Procedia Engineering N2 - Sensing is nowadays an accepted application of phononic crystals with chemical and biosensors for liquid analytes being the perhaps most promising ones. A liquid-filled defect is introduced that turns into a resonant cavity. Similar to the well-known resonant sensors sensitivity can be increased with higher operating frequencies. We introduce a Sandwiched Phononic Crystal (SPC), which applies a resonant cavity located between two stacked layers on top of a SAW device. Key challenges are coupling of surface acoustic wave into the liquid cavities and avoiding scattering of the guided waves into the bulk of the sensor chip. Y1 - 2016 UR - https://linkinghub.elsevier.com/retrieve/pii/S1877705816335640 U6 - https://doi.org/10.1016/j.proeng.2016.11.251 SN - 18777058 IS - 168 SP - 700 EP - 703 PB - Elsevier ER - TY - JOUR A1 - Aman, A. A1 - Majcherek, Soeren A1 - Schmidt, M. P. A1 - Orseev, A. A1 - Engel, C. A1 - Hirsch, Sören T1 - Behavior of Current Flow on Lead Zirconate Titanate Surfaces during Mechanical Impact JF - Research & Reviews: Journal of Material Sciences Y1 - 2016 UR - http://www.rroij.com/open-access/behavior-of-current-flow-on-lead-zirconate-titanate-surfacesduring-mechanical-impact-.php?aid=69107 U6 - https://doi.org/10.4172/2321-6212.1000137 SN - 23216212 IS - Ausgabe: 1/ Band: 4 PB - Research and Reviews ER - TY - JOUR A1 - Schmidt, Marc-Peter A1 - Oseev, Aleksandr A1 - Lucklum, Ralf A1 - Zubtsov, Mikhail A1 - Hirsch, Sören T1 - SAW based phononic crystal sensor, technological challenges and solutions JF - Microsystem Technologies Y1 - 2016 UR - http://link.springer.com/10.1007/s00542-015-2781-3 U6 - https://doi.org/10.1007/s00542-015-2781-3 SN - 0946-7076, 1432-1858 SP - 1593 EP - 1599 PB - Springer Link ER - TY - CHAP A1 - Kramann, Guido T1 - AOGscript – Design of a Stand-Alone Scripting Language for the Generation of Music. Proceedings of the International Symposium on Ubiquitous Music, 2023 T2 - Konferenz: 13th International Symposium on Ubiquitous Music 2023 (Ubimus23) , Ulster University, Derry~Londonderry, Northern Ireland, 2-4 November, 2023 N2 - Ubiquitous Music is an interdisciplinary research area that combines methodologies from music, computer science, education, creativity studies, human sciences and engineering. The Ubiumus 2023 symposium, held at Ulster University and North West Regional College in Derry~Londonderry, Northern Ireland, included contributions on the following topics: Rapid Prototyping and Live Environments Ecological Approaches to Ubiquitous Music Ubiquitous Music Creative Practices, Tools and Influences The symposium also included a number of artistic contributions and workshops, which are also discussed in the proceedings volume. A number of events (including all paper presentations, an invited lecture, a panel discussion, and a keynote and associated performance) were also documented via video, with a link available in this Proceedings volume. Y1 - 2023 UR - https://zenodo.org/records/10670220 SN - 978-65-00-85069-7 U6 - https://doi.org/10.5281/zenodo.10670220 SP - 95 EP - 109 PB - Zenodo ER - TY - CHAP A1 - Guido, Kramann T1 - AOGscript, Generative Code as Conceptual Artwork: Giving Space to Astonishment. Proceedings of xCoAx 2023 T2 - Konferenz: xCoAx 2023 11th Conference on Computation, Communication, Aesthetics & X Y1 - 2023 UR - https://2023.xcoax.org/xcoax2023.pdf SN - 978-989-9049-52-9 U6 - https://doi.org/10.34626/xcoax.2023 SP - 401 EP - 408 PB - i2ADS CY - Porto, Portugal ER - TY - CHAP A1 - Markgraf, Klaus A1 - Dietrich, Benjamin A1 - Müller, Katja A1 - Flassig, Robert J A1 - Flassig, Peter Michael T1 - FINEconcepts - Wissenstransfer und Energiesystemoptimierung mithilfe des digitalen Zwillings T2 - Konferenz: NWK 2023, HS Harz N2 - Climate change, but also geopolitical circumstances, are moving topics such as energy efficiency and renewable energies more and more into the focus of the population, economy , and politics. As a result, the will to optimize new and existing energy systems extends from private individuals to companies and even entire communities. This work describes the development and usage of a new software called FINEconcepts which creates a digital twin of an energy system. This virtual model can then be used to optimize the energy system based on annual costs, CO2 emissions or other relevant criteria such as self-sufficiency. Because all system components, which include renewable technologies as well, can be added as a building block with chosen but changeable parameters, the software allows the user to explore and awaken interest and understanding of technologies that were previously considered too costly, irrelevant, or unrealistic. Implemented projects in small and large companies as well as in residential areas did prove, that the usage of FINEconcepts leads not only to more efficient energy systems by increasing the use of renewable energy, but also increased knowledge and understanding in terms of energy. Besides economics, ecology and security, understanding is an equally important factor in achieving a sustainable energy supply. Y1 - 2023 SP - 428 EP - 435 ER - TY - JOUR A1 - Vega, Catherine Perez A1 - Jechow, Andreas A1 - James A., Campbell A1 - Zielinska-Dabkowska, Karolina M. A1 - Hoelker, Franz T1 - Light pollution from illuminated bridges as a potential barrier for migrating fish-Linking measurements with a proposal for a conceptual model JF - Basic and Applied Ecology N2 - Illuminated bridges have become important assets to navigable aquatic systems. However, if artificial light at night (ALAN) from illuminated bridges reaches aquatic habitats, such as rivers, it can threaten the river's natural heterogeneity and alter the behavioural responses of migratory fish. Here, via a pilot study, we quantified levels of ALAN at illuminated bridges that cross a river and, propose a conceptual model to estimate its potential implications on two migrating fish species with contrasting life histories. Night-time light measurements on the river Spree in Berlin were performed continuously along a transect and in detail at seven illuminated bridges. Photometric data of the pilot study showed rapidly increased and decreased light levels at several illuminated bridges from which we derived several model illumination scenarios. These illumination scenarios and their potential effect on migrating Atlantic salmon smolts (Salmo salar) and European silver eel (Anguilla anguilla) are presented as a conceptual model, considering illuminated bridges as behavioural barriers to fish migration. ALAN's adverse effects on freshwater habitats must be better researched, understood, managed, and properly communicated to develop future sustainable lighting practices and policies that preserve riverscapes and their biodiversity. Y1 - 2023 UR - https://www.sciencedirect.com/science/article/pii/S1439179123000658?via%3Dihub U6 - https://doi.org/10.1016/j.baae.2023.11.001 SN - 1618-0089 VL - 74 SP - 1 EP - 12 PB - Elsevier ER - TY - JOUR A1 - Vollmer, Michael T1 - So weit das Auge trägt JF - Physik in unserer Zeit N2 - Sichtweiten in der Atmosphäre reichen von wenigen Metern im Nebel bis zu einigen hundert Kilometern bei extrem guten Fernsichtbedingungen. Die zugrundeliegende Physik geht vom Wahrnehmungskontrast aus. Dieser ändert sich mit der Entfernung entlang der Sichtlinie zwischen Objekt und Auge aufgrund von Lichtstreuung und Absorption an den Bestandteilen der Atmosphäre. Dazu kommt bei der Fernsicht die Refraktion, die es erlaubt, auch über den durch die Kugelform der Erde geometrisch bedingten Horizont hinaus zu sehen. Y1 - 2023 UR - https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/piuz.202301675 U6 - https://doi.org/10.1002/piuz.202301675 SN - 1521-3943 VL - 54 IS - 5 SP - 222 EP - 230 PB - Wiley ER - TY - CHAP A1 - Markgraf, Klaus T1 - Entwicklung eines Tools zur spezifischen, lastgangbasierten Eigenverbrauchsoptimierung mittels PV-Leistungsprognose T2 - Konferenz: 18. Symposium Energieinnovation, 2024, Graz/Austria N2 - The German government's initiative to cover 80% of the gross electricity supply with renewable energies by 2050 brings considerable ecological benefits, but also poses several challenges. One of these challenges is the growing number of photovoltaic systems (PV systems), which, due to their high feed-in power, already pose a risk to the security of the electricity distribution grid during long periods of sunny weather. To counteract this, active research is being carried out in the field of PV power forecasting. This research is primarily aimed at providing the grid operator with a predicted power output, which enables a longer planning horizon and thus increases the operational grid security. However, the considerable annual electricity consumption of private households and the increasing spread of PV systems for self-consumption show that the energy behavior of households, especially self-consumption, also influences grid security. Additionally, households have an incentive to boost their self-consumption because the cost of drawing each kilowatt-hour from the grid is substantially higher than the compensation received for injecting an equivalent amount of energy back into the grid. However, as of now, there is no software available that easily enables households to tailor the usage patterns of their electrical appliances according to a photovoltaic (PV) forecast. The project described here aims to close this gap by creating such software. Various PV forecasting models are used and tested for their suitability for this purpose. A self-generated optimization process is implemented in this project to optimize the consumer configuration based on the PV forecasts. The here-developed tool enables the user to enter parameters for his PV system and the specific load profiles of his electrical appliances. Based on this data, the optimization algorithm determines a consumption plan with a forecast horizon until the end of the next day that maximizes the user's self-consumption. To validate the tool, the optimization process is carried out over a period of 60 days using a predefined scenario and the results are compared with a scenario in which the electrical appliances are intuitively operated at midday. The analysis of these results ultimately shows the potential impact of such a tool on the economic efficiency of private households and the supply stability. Y1 - 2024 U6 - https://doi.org/10.6084/m9.figshare.25610976 SP - 1 EP - 10 ER - TY - JOUR A1 - Ayalon, Inbal A1 - Avisar, Dror A1 - Jechow, Andreas A1 - Levy, Oren T1 - Corals nitrogen and carbon isotopic signatures alters under Artificial Light at Night (ALAN) JF - The Science of The Total Environment N2 - This study examines the impact of Artificial Light at Night (ALAN) on two coral species, Acropora eurystoma and Pocillopora damicornis, in the Gulf of Aqaba/Eilat Red Sea, assessing their natural isotopic responses to highlight changes in energy and nutrient sourcing due to sensory light pollution. Our findings indicate significant disturbances in photosynthetic processes in Acropora eurystoma, as evidenced by shifts in δ13C values under ALAN, pointing to alterations in carbon distribution or utilization. In Pocillopora damicornis, similar trends were observed, with changes in δ13C and δ15N values suggesting a disruption in its nitrogen cycle and feeding strategies. The study also uncovers species-specific variations in heterotrophic feeding, a crucial factor in coral resilience under environmental stress, contributing to the corals' fixed carbon budget. Light measurements across the Gulf demonstrated a gradient of light pollution which possess the potential of affecting marine biology in the region. ALAN was found to disrupt natural diurnal tentacle behaviors in both coral species, crucial for prey capture and nutrient acquisition, thereby impacting their isotopic composition and health. Echoing previous research, our study underscores the need to consider each species' ecological and physiological contexts when assessing the impacts of anthropogenic changes. The findings offer important insights into the complexities of marine ecosystems under environmental stress and highlight the urgency of developing effective mitigation strategies. Y1 - 2024 U6 - https://doi.org/10.1016/j.scitotenv.2024.170513 IS - 920 PB - Elsevier ER - TY - JOUR A1 - Maleki, Maniya A1 - Mohammadi, Mahdieh T1 - Velocity and pressure functions of an oscillating flow in a circular Hele-Shaw cell JF - Iranian Journal of Physics Research N2 - In this study, we have investigated the form of velocity and pressure functions of a fluid oscillating between two parallel glass sheets that form a circular Hele-Shaw cell. The flow has been considered to be radial, incompressible and laminar. The time-dependent Navier-Stokes equation has been solved in cylindrical coordinates using Fourier transform, and the oscillating flow velocity across the thickness of the cell has been obtained at different times. The flow velocity function in the unsteady state is related to the vertical component of the coordinates in the form of parabolic functions and also to the inverse of the radial component. The time dependence appears as a simple harmonic with a frequency equal to the oscillation frequency. The velocity of the flow is maximum at the middle of the cell along its height and gradually decreases from the middle towards the top or bottom plane and reaches zero. Pressure does not depend on the height and changes logarithmically with the radius. The dependence of pressure on time is also a simple harmonic with the external frequency, but it has a phase shift with respect to the velocity. Y1 - 2023 U6 - https://doi.org/10.47176/ijpr.22.1.81304 VL - 22 IS - 1 SP - 113 EP - 120 PB - Physics Society of Iran ER - TY - JOUR A1 - Trittel, Torsten A1 - Puzyrev, Dmitry A1 - Stannarius, Ralf T1 - Platonic solids bouncing on a vibrating plate JF - Physical Review E N2 - The energy transfer between bouncing particles and rigid boundaries during impacts is crucially influenced not only by restitution coefficients of the material but also by particle shapes. This is particularly important when such particles are mechanically agitated with vibrating plates. Inertial measurement units are able to measure all acceleration and rotational velocity components of an object and store these data for subsequent analysis. We employ them to measure the dynamics of cubes and icosahedra on vibrating plates to study the efficiency of energy transfer into the individual degrees of freedom (DOFs) of the excited object. The rotational DOFs turn out to be much less excited than the vertical translational motion. Most remarkably, there is only little difference between the two Platonic solids in both the absolute energies and the energy partition ratios. Y1 - 2024 U6 - https://doi.org/10.1103/PhysRevE.109.034903 VL - 109 IS - 3 PB - American Physical Society ER - TY - JOUR A1 - Lachowski, Krzysztof A1 - Hammermeister, Florian A1 - Halenz, Bastian A1 - Lieckefett, Florian A1 - Götze, Thomas A1 - Prill, Robert A1 - Becker, Roland T1 - The Patellostabilometer: A New Device for Quantification of Mediolateral Patella Displacement JF - Sensors N2 - Mediolateral patella displacement is of interest for diagnostics and clinically relevant research questions. Apart from manual testing, no standardized method is currently available. Proper quantification of patella mobility is necessary to better understand pathologies at the patellofemoral joint. Patella mobility was assessed in 25 healthy individuals using a Patellostabilometer, a new prototype instrument for quantification of the mediolateral patella displacement. The participants underwent measurements of the mediolateral displacement three times using the Patellostabilome- ter. A maximal force of 10 N was applied for patella movement. Additionally, leg length and circumference of the knee, upper- and lower-leg were measured. Lateral patella displacement of 18.27 ± 3.76 mm (range 15.85–20.64 mm, interquartile range (IQR) of 4.79) was measured. The medial patella displacement showed 24.47 ± 6.59 mm (range 19.29–29.76 mm, IQR of 10.47). The test–retest measurement error was 2.32 ± 1.76 mm (IQR of 2.38 mm), with five outliers. There was greater test–retest variability between the measurements of the medial displacement compared to the lateral one. The test–retest variability reached 7% of the patella displacement. Other parameters provided no significant correlations. Based on the natural patellofemoral mobility, a precise and clinically relevant quantification of patella mobility is allowed. Y1 - 2023 UR - https://www.mdpi.com/1424-8220/23/3/1274 U6 - https://doi.org/https://doi.org/10.3390/s23031274 IS - 23 (3) PB - MDPI ER - TY - JOUR A1 - Rizun, Nina A1 - Revina, Aleksandra A1 - Edelmann, Noella T1 - Application of Text Analytics in Public Service Co-Creation: Literature Review and Research Framework JF - DG.O 2023: The 24th Annual International Conference on Digital Government Research N2 - The public sector faces several challenges, such as a number of external and internal demands for change, citizens' dissatisfaction and frustration with public sector organizations, that need to be addressed. An alternative to the traditional top-down development of public services is co-creation of public services. Co-creation promotes collaboration between stakeholders with the aim to create better public services and achieve public values. At the same time, data analytics has been fuelled by the availability of immense amounts of textual data. Whilst both co-creation and TA have been used in the private sector, we study existing works on the application of Text Analytics (TA) techniques on text data to support public service co-creation. We systematically review 75 of the 979 papers that focus directly or indirectly on the application of TA in the context of public service development. In our review, we analyze the TA techniques, the public service they support, public value outcomes, and the co-creation phase they are used in. Our findings indicate that the TA implementation for co-creation is still in its early stages and thus still limited. Our research framework promotes the concept and stimulates the strengthening of the role of Text Analytics techniques to support public sector organisations and their use of co-creation process. From policy-makers' and public administration managers' standpoints, our findings and the proposed research framework can be used as a guideline in developing a strategy for the designing co-created and user-centred public services. Y1 - 2023 UR - https://dl.acm.org/doi/10.1145/3598469.3598471 U6 - https://doi.org/10.1145/3598469.3598471 SP - 12 EP - 22 PB - Association for Computing Machinery ER - TY - JOUR A1 - Stannarius, Ralf A1 - Harth, Kirsten T1 - The structure of disintegrating defect clusters in smectic C freely suspended films JF - Soft Matter N2 - Disclinations or disclination clusters in smectic C freely suspended films with topological charges larger than one are unstable. They disintegrate, preferably in a spatially symmetric fashion, into single defects with individual charges of +1, which is the smallest positive topological charge allowed in polar vector fields. While the opposite process of defect annihilation is well-defined by the initial defect positions, disintegration starts from a singular state and the following scenario including the emerging regular defect patterns must be selected by specific mechanisms. We analyze experimental data and compare them with a simple model where the defect clusters adiabatically pass quasi-equilibrium solutions in one-constant approximation. It is found that the defects arrange in geometrical patterns that correspond very closely to superimposed singular defect solutions, without additional director distortions. The patterns expand by affine transformations where all distances between individual defects scale with the same time-dependent scaling factor proportional to the square-root of time. Y1 - 2023 UR - https://pubs.rsc.org/en/content/articlelanding/2023/sm/d3sm00808h U6 - https://doi.org/https://doi.org/10.1039/d3sm00808h IS - 19 SP - 6109 EP - 6115 PB - Royal Society of Chemistry ER - TY - JOUR A1 - Klopp, Christoph A1 - Trittel, Torsten A1 - Harth, Kirsten A1 - Stannarius, Ralf T1 - Coalescence of biphasic droplets embedded in free standing smectic A films JF - Soft Matter N2 - We investigate micrometer-sized flat droplets consisting of an isotropic core surrounded by a nematic rim in freely suspended smectic A liquid-crystal films. In contrast to purely isotropic droplets which are characterized by a sharp edge and no long-range interactions, the nematic fringe introduces a continuous film thickness change resulting in long-range mutual attraction of droplets. The coalescence scenario is divided in two phases. The first one consists in the fusion of the nematic regions. The second phase involves the dissolution of a thin nematic film between the two isotropic cores. The latter has many similarities with the rupture of thin liquid films between droplets coalescing in an immiscible viscous liquid. Coalescence of biphasic droplets in free-standing smectic films is controlled in part by the rupture of a thin nematic membrane separating the isotropic droplet cores. Y1 - 2023 UR - https://pubs.rsc.org/en/content/articlelanding/2024/sm/d3sm01549a U6 - https://doi.org/10.1039/d3sm01549a SN - 1744-683X VL - 20 IS - 5 SP - 1036 EP - 1046 PB - Royal Society of Chemistry ER - TY - JOUR A1 - Kuznetsov, Arthur A1 - Frorip, Aleksandr A1 - Sünter, Alar A1 - Kasvand, Nensi A1 - Korsakov, Vadim A1 - Konoplev, Georgii A1 - Stepanova, Oksana A1 - Rusalepp, Linda A1 - Anton, Dea A1 - Püssa, Tõnu A1 - Roasto, Mati A1 - Abramova, Liubov A1 - Kozin, Andrey A1 - Toom, Lauri A1 - Hirsch, Sören A1 - Mukhin, Nikolay ED - mdpi, T1 - Fast Protein and Metabolites (Nucleotides and Nucleosides) Liquid Chromatography Technique and Chemical Sensor for the Assessment of Fish and Meat Freshness JF - Chemosensors N2 - Fast protein and metabolite liquid chromatography (FPLMC) was introduced years ago to enable the easy separation of high-molecular compounds such as proteins from small molecules and the identification of the low-molecular substances. In this paper, the method is applied for the rapid evaluation of freshness and monitoring the aging of animal meat and fish. A novel chromatographic sensor was developed with a deep UV LED-based photometric detection unit (255–265 nm), an original flow cuvette and registration scheme; the processing of a chromatogram with the sensor takes approximately 15 min. Strict isochronism between the elution of ATP metabolites, mainly hypoxanthine (Hx) and inosine monophosphate (IMP), and the time of maturation of meat or fish, was discovered. A new freshness index H* = [Hx]/[IMP] was introduced, which is proportional to the instrumental delay time in the FPMLC chromatograms: the H* index < 0.5 indicates the presence of inosine monophosphate (IMP) and the high quality of the meat or fish. Reasonably strong correlations were revealed between data obtained by FPMLC and total volatile basic nitrogen TVB-N (for fish) or volatile fatty acids VFA (for meat) content. Moreover, putative nucleotide salvage and an increase in the concentration of IMP were observed in fish after heat treatment using the FPMLC sensor and NMR technique. Y1 - 2023 UR - https://www.mdpi.com/2227-9040/11/1/69 U6 - https://doi.org/10.3390/chemosensors11010069 SN - 2227-9040 IS - 1/2023 / Band 11 PB - MDPI ER - TY - JOUR A1 - Chaurasia, Prashtan Kumar A1 - Goecke, Sven-Frithjof A1 - De, Amitava T1 - Real-time monitoring of temperature field, metal transfer and cooling rate during gas metal arc-directed energy deposition JF - Science and Technology of Welding and Joining Y1 - 2022 U6 - https://doi.org/10.1080/13621718.2022.2080447 SN - 13621718 IS - 27 SP - 512 EP - 521 PB - Taylor & Francis ER - TY - JOUR A1 - Tumarkin, Andrey A1 - Tyurnina, Natalya A1 - Mukhin, Nikolay A1 - Tyurnina, Zoya A1 - Sinelshchikova, Olga A1 - Gagarin, Alexander A1 - Sapego, Eugeny A1 - Kretser, Yriy T1 - Glass-ceramic ferroelectric composite material BaTiO3/KFeSi for microwave applications JF - Composite Structures N2 - Glass-ceramic composites consisting of potassium-iron-silicate glass and barium titanate mixed in various proportions were successfully synthesized by low-temperature sintering. The crystal structure of the obtained composite samples, the porosity and the microhardness were studied by the X-ray diffraction, the electron microscopy, the weight method, and the Vickers method. Electrical characteristics (dielectric permittivity, tunability and losses) of as-prepared and annealed in oxygen medium samples were investigated at microwaves. According to structural analysis, the synthesized samples are a mixture of KFeSi glass, ferroelectric BaTiO3, and dielectric barium polytitanates; the ratio of the latter determines the electrical properties of the composites. Depending on the content of barium titanate, the studied composite samples show a permittivity from 50 to 270 with a dielectric loss level of 0,1–0,02 in frequency range from 3 to 10 GHz. Annealing of composite samples in an oxygen-containing environment leads to an increase in their dielectric permittivity and tunability by 10–25% and a twofold decrease in dielectric loss. Y1 - 2022 UR - https://linkinghub.elsevier.com/retrieve/pii/S0263822321014161 SN - 0263-8223 VL - 281 SP - 1 EP - 10 PB - Elsevier ER - TY - JOUR A1 - Fachet, Melanie A1 - Witte, Carina A1 - Flassig, Robert J. A1 - Rihko-Struckmann, Liisa K. A1 - McKie-Krisberg, Zaid A1 - Polle, Jürgen E. W. A1 - Sundmacher, Kai T1 - Reconstruction and analysis of a carbon-core metabolic network for Dunaliella salina JF - BMC Bioinformatics KW - Metabolic network reconstruction KW - Central carbon metabolism KW - Flux balance analysis KW - Dunaliella salina Y1 - 2020 U6 - https://doi.org/10.1186/s12859-019-3325-0 VL - 21 IS - 1 PB - BioMed Central ER - TY - JOUR A1 - Giesler, Jasper A1 - Pesch, Georg R. A1 - Weirauch, Laura A1 - Schmidt, Marc-Peter A1 - Thöming, Jorg A1 - Baune, Michae T1 - Polarizability-Dependent Sorting of Microparticles Using Continuous-Flow Dielectrophoretic Chromatography with a Frequency Modulation Method JF - Micromachines Y1 - 2020 U6 - https://doi.org/10.3390/mi11010038 VL - 11 IS - 1 SP - 38 PB - MDPI ER - TY - JOUR A1 - Vollmer, Michael A1 - Möllmann, Klaus-Peter T1 - Unsichtbares sichtbar gemacht: Infrarotkameras für Smartphones JF - Physik in unserer Zeit KW - Infrarotkamera KW - Smartphone KW - Temperaturmessung KW - räumliche Auflösung KW - qualitative Analyse KW - quantitative Analyse Y1 - 2020 U6 - https://doi.org/https://doi.org/10.1002/piuz.201901551 VL - 51 IS - 1 SP - 29 EP - 35 PB - Wiley-VCH ER - TY - JOUR A1 - Möllmann, Klaus-Peter A1 - Regehly, Martin A1 - Vollmer, Michael T1 - Spectroscopy and microscopy analysis of semiconductor lasers in student laboratories JF - European Journal of Physics Y1 - 2020 U6 - https://doi.org/10.1088/1361-6404/ab5075 VL - 41 IS - 2 SP - 025302 PB - Institute of Physics Publishing (IOP); European Physical Society ER - TY - JOUR A1 - Vollmer, Michael A1 - Möllmann, Klaus-Peter T1 - Wenn Licht die Biege macht JF - Physik in unserer Zeit Y1 - 2020 U6 - https://doi.org/https://doi.org/10.1002/piuz.202001569 VL - 51 IS - 1 SP - 46 EP - 47 PB - Wiley-VCH ER - TY - JOUR A1 - Lübcke, Andrea A1 - Braenzel, Julia A1 - Dehlinger, Aurelie A1 - Schnürer, Matthias A1 - Stiel, Holger A1 - Guttmann, Peter A1 - Rehbein, Stefan A1 - Schneider, Gerd A1 - Werner, Stephan A1 - Kemmler, Roman A1 - Ritter, Sebastian A1 - Raugust, Marc A1 - Wende, Torsten A1 - Behrendt, Marcel A1 - Regehly, Martin T1 - Soft X-ray nanoscale imaging using a sub-pixel resolution charge coupled device (CCD) camera JF - Review of Scientific Instruments Y1 - 2019 U6 - https://doi.org/10.1063/1.5053593 VL - 90 IS - 4 PB - American Institute of Physics ER - TY - JOUR A1 - Flassig, Robert J. A1 - Mangold, Michael A1 - Wölfer, Christian T1 - Towards Design of Self‐Organizing Biomimetic Systems JF - Advanced Biosystems KW - bottom-up KW - synthetic biology KW - functional biomodules KW - model-based bioengineering KW - protocell KW - whole cell model Y1 - 2019 U6 - https://doi.org//10.1002/adbi.201800320 SN - 2366-7478 VL - 3 IS - 6 SP - 1800320 PB - Wiley Vch ER - TY - JOUR A1 - Goecke, Sven-Frithjof A1 - Makwana, Pinaac A1 - Shome, Mahadev A1 - De, Amitava T1 - Probing joint strength and distortion in gas metal arc lap joining of aluminum and steel sheets JF - Welding in the World Y1 - 2019 U6 - https://doi.org/10.1007/s40194-018-0653-z VL - 63 IS - 2 SP - 229 EP - 236 PB - Springer ER - TY - JOUR A1 - Vollmer, Michael A1 - Shaw, Joseph A. A1 - Nugent, Paul A1 - Harris, Wilson T1 - Heiße Quellen im Wärmebild. Yellowstone‐Park im Infraroten JF - Physik in unserer Zeit Y1 - 2019 U6 - https://doi.org/10.1002/piuz.201901539 VL - 50 IS - 5 SP - 244 EP - 250 PB - Wiley-VCH ER - TY - JOUR A1 - Makwana, Pinaac A1 - Goecke, Sven-Frithjof A1 - De, Amitava T1 - Real-time heat input monitoring towards robust GMA brazing JF - Science and Technology of Welding & Joining Y1 - 2019 U6 - https://doi.org/10.1080/13621718.2018.1470290 VL - 24 IS - 1 SP - 1 EP - 11 PB - Taylor & Francis ER - TY - JOUR A1 - Vollmer, Michael A1 - Möllmann, Klaus-Peter T1 - Manche mögen‘s kochend heiß JF - Physik in unserer Zeit Y1 - 2019 U6 - https://doi.org/10.1002/piuz.201901533 VL - 50 IS - 1 SP - 46 EP - 47 PB - Wiley-VCH ER - TY - JOUR A1 - Vollmer, Michael A1 - Möllmann, Klaus-Peter T1 - Alles kalter Kaffee? Rasante Physik JF - Physik in unserer Zeit Y1 - 2019 U6 - https://doi.org/10.1002/piuz.201901553 VL - 50 IS - 5 SP - 252 EP - 253 PB - Wiley-VCH ER - TY - JOUR A1 - Vollmer, Michael A1 - Möllmann, Klaus-Peter T1 - Das langsame Verdunsten von Wasser JF - Physik in unserer Zeit Y1 - 2019 U6 - https://doi.org/10.1002/piuz.201901541 VL - 50 IS - 2 SP - 97 EP - 98 PB - Wiley-VCH ER - TY - JOUR A1 - Mikhailov, Ivan Igorevich A1 - Lamkin, I. A. A1 - Degterev, Aleksandr A1 - Degtereva, Mariya A1 - Pavlova, Marina A1 - Kurachkina, Marharyta A1 - Tarasov, S. A. A1 - Kuzmina, Ulyana T1 - Фоточувствительные структуры с каскадными концентраторами излучения на основе коллоидных квантовых точек халькогенидов металлов JF - Journal of the Russian Universities Radioelectronics N2 - The problem of increasing the efficiency of existing photodetectors and creating their new types attracts much research attention. Among new photodetector types are photosensitive structures based on cascade concentrators, whose operational principle involves the absorption of optical radiation followed by its reemission at a longer wavelength and radiation concentration onto a highly efficient small-area photodetector. The absorption and re-emission spectra of each cascade layer depend on the characteristics of the material used. Сolloidal quantum dots are among the most promising materials for cascade layers due to their manufacturing technology, which provides for accurate control over the photoluminescence maximum position. It seems highly relevant to develop and to study photosensitive structures with cascade concentrators of various shapes based on CdS, CdSe/ZnS, and PbS colloidal quantum dots. Aim . To develop photosensitive structures with a wide-range sensitivity spectrum based on concentrators containing arrays of metal chalcogenide CQDs and to study their characteristics. Materials and methods . Cascade photosensitive structures were manufactured based on layers made of polymethyl methacrylate and layers of colloidal quantum dots embedded in a polystyrene matrix. Results . Three-layer concentrators were manufactured with different colloidal quantum dots in each concentrator layers. A 22 % increase in the output power was observed for a three-layer cascade structure based on different cascade layer materials compared to a similar structure using a single layer concentrator. Conclusion . The conducted studies showed an increase in the efficiency of photosensitive structures with a cascade concentrator based on colloidal quantum dots of various types (CdS, CdSe/ZnS, and PbS) in the cascade layers. T2 - Photo-sensitive Structures with Cascade Radiation Concentrators Based on Colloidal Quantum Dots of Metal Chalcogenides Y1 - 2023 U6 - https://doi.org/10.32603/1993-8985-2023-26-2-78-88 SN - 2658-4794 VL - 26 IS - 2 SP - 78 EP - 88 PB - Saint Petersburg Electrotechnical University ER - TY - JOUR A1 - Wang, Jing A1 - Harth, Kirsten A1 - Puzyrev, Dmitry A1 - Stannarius, Ralf T1 - The effect of obstacles near a silo outlet on the discharge of soft spheres JF - New Journal of Physics KW - fluid dynamics Y1 - 2022 U6 - https://doi.org/10.1088/1367-2630/ac8bea VL - 24 PB - IOP ER - TY - JOUR A1 - Regehly, Martin A1 - Hecht, Stefan T1 - Auf dem Weg zum Replikator BT - volumetrischer 3D-Druck JF - Physik in unserer Zeit KW - Xolographie KW - 3D-Druck KW - Additive Fertigung KW - volumetrisch KW - Photoschalter KW - Lichtschnitt Y1 - 2022 U6 - https://doi.org/10.1002/piuz.202201637 SN - 1521-3943 SN - 1521-3943 (eISSN) VL - 53 IS - 3 SP - 125 EP - 131 PB - Wiley-VCH GmbH ER -