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 -