TY - JOUR A1 - Goldberg, Annett A1 - Seeliger, Frank T1 - 24-Stunden-Tage in den Wildauer Bibliotheken JF - BuB : Forum für Bibliothek und Information N2 - Jährlich finden in Bibliotheken unzählige Lesungen statt, sie laden zu Vorleseveranstaltungen und langen Nächten ein. Während der Aktionswoche »Treffpunkt Bibliothek« kamen im Oktober 2012 allein über 1 500 solcher Events zusammen. Die seit Kurzem in einem schicken Neubau untergebrachte Gemeindebibliothek Wildau und ihr in nichts nachstehender Nachbar, die Hochschulbibliothek, liegen auch in diesem öffentlichkeitswirksamen Mainstream. Y1 - 2013 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:526-opus4-9596 UR - http://www.b-u-b.de/pdfarchiv/Heft-BuB_02_2013.pdf SN - 0340-0301 VL - 65 IS - 2 SP - 97 EP - 98 ER - TY - CHAP ED - Reiff-Stephan, Jörg ED - Amouzou, Kou 'santa ED - Adanlete Adjanoh, Assiongbon T1 - 2nd German-West African Conference on Sustainable, Renewable Energy Systems (SusRES2021) BT - 6th April 2021 – Kara, Togo : Conference Proceedings N2 - Renewable energy sources are more important today than ever before, as they represent a key factor in reducing greenhouse emissions and fossil fuel consumption. Avoiding excessive burdens on future generations has now become the declared challenge of this century and justifies the efforts we must undertake to reduce global warming. This can only be achieved by conceiving new technical approaches, exploiting alternative resources and by raising people's awareness of the sustainable use of their own livelihoods. However, this change in awareness is a process that needs to be driven forward, especially in the field of research and education, and is therefore the declared aim of the Joint German-West African Conference on Sustainable, Renewable Energy Systems – SusRES. This annual conference provides a platform for exchange between scientists, students and many other interested parties, with technological progress at the forefront of the event. The SusRES conference is known as an accelerator for an ever-growing international network, not limited to the circumstances of a single country or even continent, which strives to take on and meet the global challenges of the present and future. This year's guiding theme of the event -Decentralized systems as a key factor in clean energy production for locations with limited infrastructure- of the event is primarily based on the consideration of how the energy supply of the future is to be designed. For some years now, a paradigm shift towards decentralised energy supply has been observed, which opens up new possibilities especially in areas with weak infrastructural supply. This is not just about providing energy from renewable resources, but also about exploiting this energy we have today efficiently and sustainably, whereby intelligent and interconnected systems play an ever-increasing role. The reader is provided with exciting insights into these topics within this conference proceedings elaborated by stakeholders from twelve time zones and four continents. In their contributions, the authors address important findings, especially from research but also from teaching, which represent an important milestone in their activities and thus make a significant contribution to our declared goals. T3 - TH Wildau Engineering and Natural Sciences Proceedings - 1 Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:526-opus4-14887 PB - TIB Open Publishing ER - TY - CHAP ED - Reiff-Stephan, Jörg ED - Amouzou, Kou 'santa ED - Adanlete Adjanoh, Assiongbon T1 - 2nd German-West African Conference on Sustainable, Renewable Energy Systems (SusRES2021) : 6th April 2021 – Kara, Togo : Conference Proceedings N2 - Renewable energy sources are more important today than ever before, as they represent a key factor in reducing greenhouse emissions and fossil fuel consumption. Avoiding excessive burdens on future generations has now become the declared challenge of this century and justifies the efforts we must undertake to reduce global warming. This can only be achieved by conceiving new technical approaches, exploiting alternative resources and by raising people's awareness of the sustainable use of their own livelihoods. However, this change in awareness is a process that needs to be driven forward, especially in the field of research and education, and is therefore the declared aim of the Joint German-West African Conference on Sustainable, Renewable Energy Systems – SusRES. This annual conference provides a platform for exchange between scientists, students and many other interested parties, with technological progress at the forefront of the event. The SusRES conference is known as an accelerator for an ever-growing international network, not limited to the circumstances of a single country or even continent, which strives to take on and meet the global challenges of the present and future. This year's guiding theme of the event -Decentralized systems as a key factor in clean energy production for locations with limited infrastructure- of the event is primarily based on the consideration of how the energy supply of the future is to be designed. For some years now, a paradigm shift towards decentralised energy supply has been observed, which opens up new possibilities especially in areas with weak infrastructural supply. This is not just about providing energy from renewable resources, but also about exploiting this energy we have today efficiently and sustainably, whereby intelligent and interconnected systems play an ever-increasing role. The reader is provided with exciting insights into these topics within this conference proceedings elaborated by stakeholders from twelve time zones and four continents. In their contributions, the authors address important findings, especially from research but also from teaching, which represent an important milestone in their activities and thus make a significant contribution to our declared goals. Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:526-opus4-14093 SN - 2748-8829 PB - TIB Open Publishing CY - Hannover ER - TY - JOUR A1 - Alber, Jörg A1 - Assfalg, Laurin A1 - Nayeri, Christian Navid A1 - Paschereit, Christian Oliver A1 - Lahr, Markus A1 - Semmler, Lukas A1 - Twele, Jochen A1 - Fortmann, Jens A1 - Fischer, Johannes A1 - Latoufis, Kostas A1 - Dorn, Immanuel T1 - 3D printed rotor blades for a research wind turbine: Aerodynamic and structural design and testing JF - Journal of Physics: Conference Series N2 - This study combines the design, the 3D printing and the testing of a small 3-bladed wind turbine rotor for research and teaching purposes. The objective is the additive manufacturing of a rotor with a radius of one meter, as an alternative to subtractive methods, such as computerized milling. The blade design is developed using freely available software packages. The aerodynamic considerations include the airfoil selection, the calculation of the blade geometry and the simulation of the ultimate load cases. The structural considerations are focussed on the printable materials, the infill structures and the retrofit of a load-carrying spar. The rotor blades are 3D printed with the BigRep One at the maker space of the TH Wildau. The structural integrity of the prototype blade is tested in terms of the ultimate root bending moments and the centrifugal forces at the HTW Berlin. The aerodynamic run-up tests are performed at the large wind tunnel of the TU Berlin measuring the power curves. The successful prototype paves the way for follow-up projects, such as open field tests and the 3D printing of larger rotor blades. Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:526-opus4-16314 VL - 2265 PB - Institute of Physics Publishing (IOP) ER - TY - JOUR A1 - Engels, Andreas A1 - Schlegel, Volker A1 - Jacobs, Hannes A1 - Großelindemann, Niklas A1 - Morshed, Md. Niaz A1 - Stenglein, Antonia Sigrid A1 - Bonaiuto, Vincenzo A1 - Foitzik, Andreas T1 - 3d Printer Heads for Extrusion of Biologicals Gels JF - Materials Science Forum N2 - Processing biological materials with 3-dimensional (3D) printers has attracted increasing interest in several research areas. At the same time, off-the-shelf solutions are increasingly available in a wider variety to meet the current market demand. However, most of the available bioprinters are closed source, thus, modifications are quite challenging or require an avoidable consultation process with the manufacturer. Furthermore, the entry prices for basic machines amount to several thousands of euros. Whereas, high-end 3D bio printers with a vast array of features are available for several hundred thousand euros. Due to the immense potential of this tool in the field of biotechnology it is important to extend the availability of this technology for research purposes in terms of adaptability and price. This ongoing work focuses on open-source 3D printer heads with the ability to extrude biological materials. The print heads include several techniques to process low as well as high viscose biomaterials such as agar and gelatin. Additionally, obstacles such as continuous substrate tempering or integration into existing 3D printers are addressed. The work presented is open source and thus freely adaptable to any user’s specific needs. Our goal is to process a diverse range of biomaterials with different print techniques. KW - biofabrication KW - bioprinting KW - Open Source KW - process parameter improvement Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:526-opus4-18773 SN - 0255-5476 SN - 1662-9752 VL - 1016 SP - 435 EP - 439 PB - Trans Tech Publications ER - TY - CHAP A1 - Fursenko, Oksana A1 - Bauer, Joachim A1 - Marschmeyer, Steffen T1 - 3D through silicon via profile metrology based on spectroscopic reflectometry for SOI applications N2 - Through-silicon via (TSV) technology is a key feature for 3D circuit integration. TSVs are formed by etching a vertical via and filling them with a conductive material for creation of interconnections which go through the silicon or silicon-on-insulator (SOI) wafer. The Bosch etch process on Deep Reactive Ion Etching (DRIE) is commonly used for this purpose. The etch profile defined by the critical dimensions (CDs) at the top and at the bottom, by the depth and by the scallop size on the sidewall needs to be monitored and well controlled. In this work a nondestructive 3D metrology of deeply-etched structures with an aspect ratio of more than 10 and patterns with lateral dimensions from 2 to 7 μm in SOI wafer is proposed. Spectroscopic reflectometry in the spectral range of 250-800 nm using a production metrology tool was applied. The depth determinations based on different algorithms are compared. The Pearson correlation coefficient between measured and calculated reflection is suggested as the most appropriate method. A simple method for top CD evaluation is proposed by the measurement of reflection and using the polynomial approximation of reflection versus TSV filling coefficient which is determined as ratio of CD to pitch. The 3D RCWA simulations confirm this dependence. KW - semiconducting wafer KW - etching KW - reflectance spectroscopy KW - silicon KW - 3D metrology KW - metrology KW - scanning electron microscopy Y1 - 2016 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:526-opus4-15272 SP - 268 EP - 273 PB - Society of Photo-Optical Instrumentation Engineers (SPIE) ER - TY - GEN A1 - Baumann, Jenny A1 - Bruhs, Sarah Maria A1 - Bryantseva, Yelena A1 - Chmyreva, Ekaterina A1 - Ernst, Marie-Christin A1 - Frischbier, Anne A1 - Fritsch, Katharina A1 - Glowik, Mario A1 - Lippert, Lisa A1 - Ma, Bo A1 - Nguyen, Thuy A1 - Srika, Nathalie T1 - 3D-Fernsehen – Top oder Flop? Eine Marktanalyse T2 - Wissenschaftliche Beiträge 2012 N2 - Nach Einschätzungen mehrerer Firmen aus der Unterhaltungselektronik während der »Internationalen Funkausstellung « (IFA) in Berlin 2010 und 2011 erwartet die Branche für die Zukunft vielversprechende Wachstumsraten für Fernsehgeräte mit integrierter 3D-Technologie. Diese relativ optimistische Prognose wurde zum Anlass genommen, eine Marktstudie mit dem Ziel durchzuführen, das Marktpotenzial für Fernsehgeräte mit 3D-Technologie zu untersuchen. Insgesamt wurden 261 Personen aus dem Raum Berlin-Brandenburg befragt, um Rückschlüsse auf deren Kaufbereitschaft für 3D-Fernsehgeräte ziehen zu können. Die empirischen Daten aus den Fragebögen wurden mit Hilfe des Statistik-Programms SPSS (Version 19) ausgewertet. Die Forschungsergebnisse sind im vorliegenden Artikel zusammengefasst. N2 - According to estimates from several firm executives in consumer electronics as announced during the »Internationale Funkausstellung« (IFA) in Berlin in 2010 and 2011, the market for TVs with integrated 3D technology indicates very promising growth rates for the future. This relatively optimistic forecast was taken as an opportunity to initiate a field research project. Research activity targets to investigate the market potential for TV sets with 3D-technology. A total of 261 people from the Berlin-Brandenburg region were interviewed. Data allow deductions about market potentials for 3D TVs in the future. The empirical data were analyzed using the statistical program SPSS (version 19). Research outcomes are summarized in this paper. Y1 - 2012 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:526-opus-1233 SN - 0949-8214 VL - 16 SP - 115 EP - 122 ER - TY - CHAP A1 - Melnyk, Sergiy A1 - Zhou, Qiuheng A1 - Schotten, Hans D. A1 - Rüther-Kindel, Wolfgang A1 - Quaeck, Fabian A1 - Stuckert, Nick A1 - Vilter, Robert A1 - Gebauer, Lisa A1 - Galkow-Schneider, Mandy A1 - Friese, Ingo A1 - Drüsedow, Steffen A1 - Pfandzelter, Tobias A1 - Malekabbasi, Mohammadreza A1 - Bermbach, David A1 - Bassbouss, Louay A1 - Zoubarev, Alexander A1 - Neparidze, Andy A1 - Kritzner, Arndt A1 - Hartbrich, Jakob A1 - Raake, Alexander A1 - Zschau, Enrico A1 - Schwahn, Klaus-Jürgen T1 - 6G NeXt — Joint Communication and Compute Mobile Network: Use Cases and Architecture T2 - Kommunikation in der Automation : 14. Jahreskolloquium, 21./22.11.2023, Magdeburg N2 - The research on the new generation mobile networks is currently in the phase of defining the key technologies to make 6G successful. Hereby, the research project 6G NeXt is aiming to provide a tight integration between the communication network, consisting of the radio access as well as backbone network, and processing facilities. By the concept of split computing, the processing facilities are distributed over the entire backbone network, from centralised cloud to the edge cloud at a base station. Based on two demanding use cases, Smart Drones and Hologradic Communication, we investigate a joint communication and compute architecture that will make the application of tomorrow become reality. KW - 6G KW - agile link adaptation KW - split computing KW - high-speed backbone KW - geo-distributed computing KW - uav KW - anti-collision system KW - wireless closed loop KW - holographic communication KW - quality of experience KW - split rendering KW - metaverse Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:526-opus4-19163 PB - Otto-von-Guericke-Universität Magdeburg ER - TY - JOUR A1 - Baumann, Elisabeth A1 - Pohle, Ulrike A1 - Zhang, Edward A1 - Allen, Thomas A1 - Villringer, Claus A1 - Pulwer, Silvio A1 - Gerhardt, Holger A1 - Laufer, Jan T1 - A backward-mode optical-resolution photoacoustic microscope for 3D imaging using a planar Fabry-Pérot sensor JF - Photoacoustics N2 - Optical-resolution photoacoustic microscopy (OR-PAM) combines high spatial resolution and strong absorption-based contrast in tissue, which has enabled structural and spectroscopic imaging of endogenous chromophores, primarily hemoglobin. Conventional piezoelectric ultrasound transducers are typically placed far away from the photoacoustic source due to their opacity, which reduces acoustic sensitivity. Optical ultrasound sensors are an alternative as their transparency allows them to be positioned close to the sample with minimal source-detector distances. In this work, a backward-mode OR-PAM system based on a planar Fabry-Pérot ultrasound sensor and coaxially aligned excitation and interrogation beams was developed. Two 3D imaging modes, using raster-scanning for enhanced image quality and continuous-scanning for fast imaging, were implemented and tested on a leaf skeleton phantom. In fast imaging mode, a scan-rate of 100,000 A-lines/s was achieved. 3D images of a zebrafish embryo were acquired in vivo in raster-scanning mode. The transparency of the FP sensor in the visible and near-infrared wavelength region makes it suitable for combined functional and molecular imaging applications using OR-PAM and multi-photon fluorescence microscopy. KW - optical-resolution photoacoustic microscopy KW - backward-mode imaging KW - dual-wavelength KW - continuous scanning KW - in vivo imaging KW - optical ultrasound sensing KW - planar Fabry-Pérot interferometer Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:526-opus4-14701 SN - 2213-5979 VL - 24 SP - 100293 PB - Elsevier ER - TY - CHAP A1 - Gross, Matthias A1 - Kuhl, Thorsten A1 - Stephan, Frank A1 - Li, Xiangkun A1 - Philipp, Sebastian A1 - Grebinyk, Anna A1 - Khachatryan, Vitali A1 - Qian, Houjun A1 - Aboulbanine, Zakaria A1 - Amirkhanyan, Zohrab A1 - Riemer, Felix A1 - Oppelt, Anne A1 - Krasilnikov, Mikhail ED - Istituto Nazionale Di Fisca Nucleare, T1 - A beam line setup for flash radiation therapy with focused electron beams at the Pitz facility at DESY in Zeuthen: basic concept and dosimetry simulations T2 - IPAC'23 : 14th International Particle Accelerator Conference, 7-12 May 2023, Venice, Italy : proceedings N2 - The aim of this work is to demonstrate the principal possibility to enhance the electron beam dose deposition in the depth of the sample for radiation therapy purposes. Trains of electron bunches of 22 MeV generated at PITZ are focused inside the sample using a dedicated fast deflector and a solenoid magnet. To explore the capabilities of the proposed setup, dose distributions are calculated for multiple electron bunches focused in a single point inside a water phantom. Electron beam focusing produces dose peaks with a tunable maximal dose depth which is interesting for healthy tissue sparing at the surface and enhancing treatment quality. The duration of the full bunch train is 1 ms. During this time interval, the FLASH effect could be efficiently triggered inside the irradiated target volume. Monte Carlo simulations based on the FLUKA code were performed to evaluate the depth dose curves distributions in a water phantom. Using the PITZ electron beam parameters, simulations have shown the possibility to produce a peak dose in water seven times higher than compared to the dose at the surface. Moreover, the RMS size homogeneous area around the maximal dose is approximately 25 mm. Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:526-opus4-21132 SP - 5000 EP - 5003 PB - JACoW Publishing ER -