@article{BruneOrtnerEderetal., author = {Brune, Barbara and Ortner, Irene and Eder, Gabriele and Voronko, Yuliya and Gassner, Anika and Berger, Karl Anton and Oreski, Gernot and Kn{\"o}bl, Karl and Neumaier, Lukas and Feichtner, Markus}, title = {Connecting material degradation and power loss of PV modules using advanced statistical methodology}, series = {Solar Energy Materials and Solar Cells}, volume = {260}, journal = {Solar Energy Materials and Solar Cells}, doi = {https://doi.org/10.1016/j.solmat.2023.112485}, pages = {112485}, subject = {aging tests}, language = {en} } @article{BruneOrtnerEderetal., author = {Brune, Barbara and Ortner, Irene and Eder, Gabriele and Voronko, Yuliya and Oreski, Gernot and Berger, Karl Anton and Kn{\"o}bl, Karl and Neumaier, Lukas and Feichtner, Markus}, title = {Quantifying the influence of encapsulant and backsheet composition on PV-power and electrical degradation}, series = {Progress in Photovoltaics Research and Applications}, volume = {Volume 31}, journal = {Progress in Photovoltaics Research and Applications}, number = {Issue 7}, doi = {https://doi.org/10.1002/pip.3679}, pages = {716 -- 728}, subject = {accelerated aging tests}, language = {en} } @inproceedings{GiovagnolaFernandezBenederetal., author = {Giovagnola, Jessica and Fernandez, Miguel Molina and Beneder, Roman and Schmitt, Patrick and Pegalajar Cuellar, Manuel and Morales Santos, Diego Pedro}, title = {Multisensor Avionics Architecture for BVLOS Drone Services}, series = {Journal of Physics: Conference Series ; 12th IEEE EASN International Conference EASN2022, Spain, Barcelona, Oct. 18-21, 2022}, volume = {Volume 2526}, booktitle = {Journal of Physics: Conference Series ; 12th IEEE EASN International Conference EASN2022, Spain, Barcelona, Oct. 18-21, 2022}, doi = {10.1088/1742-6596/2526/1/012084}, subject = {Heterogeneous Sensor Fusion}, language = {en} } @article{NeumaierEderVoronkoetal., author = {Neumaier, Lukas and Eder, Gabriele and Voronko, Yuliya and Berger, Karl Anton and {\´U}jv{\´a}ri, Guszt{\´a}v and Kn{\"o}bl, Karl}, title = {Advanced UV-fluorescence image analysis for early detection of PV-power degradation}, series = {EPJ Photovoltaics}, volume = {14}, journal = {EPJ Photovoltaics}, number = {Issue 9}, doi = {https://doi.org/10.1051/epjpv/2023001}, subject = {aging tests}, language = {en} } @inproceedings{BenederSchmittKoernyefalvy, author = {Beneder, Roman and Schmitt, Patrick and Koernyefalvy, Clemens}, title = {A Model-Based Approach for Remote Development of Embedded Software for Object Avoidance Applications}, series = {9th IEEE International Conference on Automation, Robotics and Applications ICARA2023, UNITED ARAB EMIRATES, ABU DHABI, Feb. 10-12, 2023}, booktitle = {9th IEEE International Conference on Automation, Robotics and Applications ICARA2023, UNITED ARAB EMIRATES, ABU DHABI, Feb. 10-12, 2023}, doi = {10.1109/ICARA56516.2023.10125627}, pages = {351 -- 355}, subject = {Object Recognition}, language = {en} } @inproceedings{BenederSchmittKoernyefalvy, author = {Beneder, Roman and Schmitt, Patrick and Koernyefalvy, Clemens}, title = {A Model-Based Approach for Robotics Education with Emphasis on Embedded Systems}, series = {9th IEEE International Conference on Automation, Robotics and Applications ICARA2023, UNITED ARAB EMIRATES, ABU DHABI, Feb. 10-12, 2023}, booktitle = {9th IEEE International Conference on Automation, Robotics and Applications ICARA2023, UNITED ARAB EMIRATES, ABU DHABI, Feb. 10-12, 2023}, doi = {https://doi.org/10.1109/ICARA56516.2023.10125977}, pages = {1 -- 5}, subject = {Robotics Education}, language = {en} } @inproceedings{WagnerJankBalzetal., author = {Wagner, Fabian and Jank, Miran and Balz, Andrea and Forjan, Mathias and Urbauer, Philipp}, title = {Immersive Spatial Planning in Healthcare: Developing a Pipeline to Automatically Convert Computer Aided DesignData to Virtual Reality}, series = {dHealth 2023, 17th Annual Conference on Health Informatics meets Digital Health}, volume = {301}, booktitle = {dHealth 2023, 17th Annual Conference on Health Informatics meets Digital Health}, doi = {https://doi.org/10.3233/shti230019}, pages = {96 -- 101}, abstract = {Equipping rooms used for medical purposes, like e.g., intensive care units, is an expensive and time-consuming task. In order to avoid extensive subsequent adjustments due to inappropriate layout visualization or geometric conditions difficult to identify in 2D plans, it is of utmost importance to provide an optimal planning environment to future users such as physicians and nurses. In this paper we present the concept of a fully automatized pipeline, which is designed to visualize computer aided design (CAD) data using virtual reality (VR). The immersive VR experience results in improvement of efficiency in the decision- making process during the planning phase due to better spatial imagination. The pipeline was successfully tested with CAD data from existing Intensive Care Units. The results indicate that the pipeline can be a valuable tool in the field of spatial planning in healthcare, due to simple usage and fast conversion of CAD data. The next step will be the development of a plugin for CAD tools to allow for interactions with the CAD models in Virtual Reality, which is not yet possible without manual intervention}, subject = {Virtual Reality}, language = {en} } @article{KubaPanholzer, author = {Kuba, Markus and Panholzer, Alois}, title = {Tree evolution processes for bucket increasing trees}, series = {Discrete Mathematics}, volume = {Vol. 346}, journal = {Discrete Mathematics}, number = {Issue 7}, doi = {https://doi.org/10.1016/j.disc.2023.113443}, pages = {113443}, abstract = {Bucket increasing trees are multilabelled generalizations of increasing trees, where each non-leaf node carries b labels, with a fixed integer. We provide a fundamental result, giving a complete characterization of all families of bucket increasing trees that can be generated by a tree evolution process. We also provide several equivalent properties, complementing and extending earlier results for ordinary increasing trees to bucket trees. Additionally, we state second order results for the number of descendants of label j, again extending earlier results in the literature.}, subject = {Increasing trees}, language = {en} } @article{FibichSchmittHoelleretal., author = {Fibich, Christian and Schmitt, Patrick and H{\"o}ller, Roland and R{\"o}ssler, Peter}, title = {Open-Source Ethernet MAC IP Cores for FPGAs: Overview and Evaluation}, series = {International Journal of Reconfigurable Computing}, volume = {2023}, journal = {International Journal of Reconfigurable Computing}, doi = {https://doi.org/10.1155/2023/9222318}, pages = {Article ID 9222318}, subject = {Ethernet}, language = {en} } @article{Himmelstoss, author = {Himmelstoss, Felix}, title = {Design of State-Space Controllers with the Help of Signal Flow Graphs Shown for a Buck Converter}, series = {WSEAS Transactions on Power Systems, Volume 21, 2022, pp. 421-429}, volume = {Volume 21}, journal = {WSEAS Transactions on Power Systems, Volume 21, 2022, pp. 421-429}, doi = {10.37394/23202.2022.21.46}, pages = {421 -- 429}, subject = {DC/DC converter}, language = {en} } @article{HimmelstossVotzi, author = {Himmelstoss, Felix and Votzi, Helmut}, title = {Simple Chargers for a Small DC Micro-Grid for a Home Emergency Power System}, series = {Electricity}, volume = {4}, journal = {Electricity}, number = {3}, doi = {https://doi.org/10.3390/electricity4030013}, pages = {216 -- 234}, subject = {micro-grid}, language = {en} } @article{Himmelstoss, author = {Himmelstoss, Felix}, title = {Quasi Resonant Zero Current Switching Modified Boost Converter (QRZCSMBC)}, series = {WSEAS Transactions on Power Systems}, volume = {Volume 22}, journal = {WSEAS Transactions on Power Systems}, doi = {10.37394/23201.2023.22.8}, pages = {55 -- 62}, subject = {DC/DC converter}, language = {en} } @article{Himmelstoss, author = {Himmelstoss, Felix}, title = {Third order converters with current output for driving LEDs}, series = {WSEAS Transactions on Power Systems}, volume = {Volume 17}, journal = {WSEAS Transactions on Power Systems}, doi = {10.37394/232016.2022.17.40}, pages = {402 -- 409}, subject = {DC/DC converters}, language = {en} } @article{MarcKnappNateqietal., author = {Marc, Zobel and Knapp, Bernhard and Nateqi, Jama and Martin, Alistair}, title = {Correlating global trends in COVID-19 cases with online symptom checker self-assessments}, series = {PLOS ONE}, volume = {18}, journal = {PLOS ONE}, number = {2}, doi = {https://doi.org/10.1371/journal.pone.0281709}, pages = {10}, abstract = {Background Online symptom checkers are digital health solutions that provide a differential diagnosis based on a user's symptoms. During the coronavirus disease 2019 (COVID-19) pandemic, symptom checkers have become increasingly important due to physical distance constraints and reduced access to in-person medical consultations. Furthermore, various symptom checkers specialised in the assessment of COVID-19 infection have been produced. Objectives Assess the correlation between COVID-19 risk assessments from an online symptom checker and current trends in COVID-19 infections. Analyse whether those correlations are reflective of various country-wise quality of life measures. Lastly, determine whether the trends found in symptom checker assessments predict or lag relative to those of the COVID-19 infections. Materials and methods In this study, we compile the outcomes of COVID-19 risk assessments provided by the symptom checker Symptoma (www.symptoma.com) in 18 countries with suitably large user bases. We analyse this dataset's spatial and temporal features compared to the number of newly confirmed COVID-19 cases published by the respective countries. Results We find an average correlation of 0.342 between the number of Symptoma users assessed to have a high risk of a COVID-19 infection and the official COVID-19 infection numbers. Further, we show a significant relationship between that correlation and the self-reported health of a country. Lastly, we find that the symptom checker is, on average, ahead (median +3 days) of the official infection numbers for most countries. Conclusion We show that online symptom checkers can capture the national-level trends in coronavirus infections. As such, they provide a valuable and unique information source in policymaking against pandemics, unrestricted by conventional resources.}, subject = {Online symptom checkers}, language = {en} } @inproceedings{HimmelstossWindisch, author = {Himmelstoss, Felix and Windisch, Michael}, title = {A capacitor-free driving stage for light emitting diodes}, series = {21th International Conference on Renewable Energies and Power Quality (ICREPQ'23) Madrid (Spain), 24th to 26th May 2023}, volume = {Vol. 21}, booktitle = {21th International Conference on Renewable Energies and Power Quality (ICREPQ'23) Madrid (Spain), 24th to 26th May 2023}, doi = {10.24084/repqj21.278}, pages = {220 -- 225}, abstract = {Electrolytic capacitors have the disadvantage of pronounced aging. Non-electrolytic capacitors are therefore used in applications where long-life is important. In this paper we present a driving stage for LEDs without any capacitive elements. The basic topology is a Buck converter with one coil, one active, and one passive switch. Instead of the output capacitor, series connections of one or more LEDs and an active switch are connected. An additional diode is connected between the output and the input to achieve a current path, when all LED- paths are off. A nonlinear hysteresis controller is used to achieve a robust control. A system with three switchable LED-strings is analyzed. Design hints are given and the function is proved with the help of LTSpice simulations. The system can be used for lighting purposes with the possibility to change the chrominance. The potentiality to transmit data is also treated.}, subject = {DC-to-DC converter}, language = {en} } @inproceedings{HimmelstossWindisch, author = {Himmelstoss, Felix and Windisch, Michael}, title = {Tapped inductor Boost with exploitation of the stray energy}, series = {Proceedings of 2022 IEEE 20th International Power Electronics and Motion Control Conference (PEMC 2022), Brasov, Rumania, Sep. 25-29}, booktitle = {Proceedings of 2022 IEEE 20th International Power Electronics and Motion Control Conference (PEMC 2022), Brasov, Rumania, Sep. 25-29}, doi = {10.1109/PEMC51159.2022.9962849}, pages = {75 -- 80}, abstract = {Tapped inductor DC-to-DC converters are interesting circuits, the winding ratio of the two windings mounted on the same core change the voltage transformation ratio compared to the untapped inductor. The tapped inductor converters are especially useful, when high or low voltage transformation ratios have to be realized. The disadvantage of this concept is that the coupling between the two windings is not total and can be described by the stray or leakage inductance. This stray inductance leads to a high overvoltage at the active switch, and therefore also across other elements of the converter. After a short summery of the ideal tapped Boost converter, the design of an RCD snubber which limits the overvoltage is explained. To improve the efficiency of the converter two active snubber networks are treated, which feed the energy stored in the snubber capacitor into the input source or into the output circuit. Simulations are used to prove these considerations.}, subject = {DC/DC converter}, language = {en} } @inproceedings{HimmelstossVotzi, author = {Himmelstoss, Felix and Votzi, Helmut}, title = {Two-Stage Step-up Converter with Different Voltage Transformation Ratios depending on the Duty Cycle}, series = {20th International Conference on Renewable Energies and Power Quality (ICREPQ'22) Vigo (Spain), 27th to 29th July 2022}, volume = {Vol. 20}, booktitle = {20th International Conference on Renewable Energies and Power Quality (ICREPQ'22) Vigo (Spain), 27th to 29th July 2022}, doi = {10.24084/repqj20.218}, pages = {66}, abstract = {A two-stage converter with high output voltage ratio and reduced current stress of the inductors and partly reduced voltage stress is discussed. The function is explained with the help of voltage and current diagrams. The voltage transformation ratio changes between a quadratic step-up for duty cycles lower 0.5 and a double Boost converter for duty cycles higher than 0.5. Dimensioning hints, the control law for feed-forward controls, the transient when the supply is turned on is discussed and some simulations are given. A comparison to other two-stage converters is also treated.}, subject = {Quadratic boost}, language = {en} } @inproceedings{FibichHorauerObermaisser, author = {Fibich, Christian and Horauer, Martin and Obermaisser, Roman}, title = {Bitstream-Level Interconnect Fault Characterization for SRAM-based FPGAs}, series = {Proceedings of the 2023 Design, Automation \& Test in Europe Conference \& Exhibition (DATE 2023), pp. 1-2, 16-18 April 2023, Antwerp, Belgium}, booktitle = {Proceedings of the 2023 Design, Automation \& Test in Europe Conference \& Exhibition (DATE 2023), pp. 1-2, 16-18 April 2023, Antwerp, Belgium}, doi = {10.23919/DATE56975.2023.10136911}, pages = {2}, subject = {FPGA}, language = {en} } @article{KierspelKadekBarranetal., author = {Kierspel, Thomas and Kadek, Alan and Barran, Perdita and Bellina, Bruno and Bijedic, Adi and Brodmerkel, Maxim N. and Commandeur, Jan and Caleman, Carl and Damjanovic, Tomislav and Dawod, Ibrahim and De Santis, Emiliano and Lekkas, Alexandros and Lorenzen, Kristina and L{\´o}pez Morillo, Luis and Mandl, Thomas and Marklund, Erik G. and Papanastasiou, Dimitris and Ramakers, Lennart A. I. and Schweikhard, Lutz and Simke, Florian and Sinelnikova, Anna and Smyrnakis, Athanasios and Timneanu, Nicusor and Uetrecht, Charlotte}, title = {Coherent diffractive imaging of proteins and viral capsids: simulating MS SPIDOC}, series = {Analytical and Bioanalytical Chemistry}, volume = {2023}, journal = {Analytical and Bioanalytical Chemistry}, number = {415}, doi = {https://doi.org/10.1007/s00216-023-04658-y}, pages = {4209 -- 4220}, abstract = {MS SPIDOC is a novel sample delivery system designed for single (isolated) particle imaging at X-ray Free-Electron Lasers that is adaptable towards most large-scale facility beamlines. Biological samples can range from small proteins to MDa particles. Following nano-electrospray ionization, ionic samples can be m/z-filtered and structurally separated before being oriented at the interaction zone. Here, we present the simulation package developed alongside this prototype. The first part describes how the front-to-end ion trajectory simulations have been conducted. Highlighted is a quadrant lens; a simple but efficient device that steers the ion beam within the vicinity of the strong DC orientation field in the interaction zone to ensure spatial overlap with the X-rays. The second part focuses on protein orientation and discusses its potential with respect to diffractive imaging methods. Last, coherent diffractive imaging of prototypical T = 1 and T = 3 norovirus capsids is shown. We use realistic experimental parameters from the SPB/SFX instrument at the European XFEL to demonstrate that low- resolution diffractive imaging data (q < 0.3 nm -1 ) can be collected with only a few X-ray pulses. Such low-resolution data are sufficient to distinguish between both symmetries of the capsids, allowing to probe low abundant species in a beam if MS SPIDOC is used as sample delivery.}, subject = {SPI}, language = {en} } @inproceedings{SteinerLuegerWallischetal., author = {Steiner, Fabian and Lueger, Bernhard and Wallisch, Bernhard and Polzer, Thomas}, title = {Automated Evaluation System for Microcontroller Assignments}, series = {2023 IEEE Global Engineering Education Conference (EDUCON), Kuwait}, booktitle = {2023 IEEE Global Engineering Education Conference (EDUCON), Kuwait}, organization = {IEEE}, isbn = {979-8-3503-9943-1}, issn = {2165-9567}, doi = {https://doi.org/10.1109/EDUCON54358.2023.10125112}, pages = {7}, abstract = {As IoT systems have increased the number of deployed embedded devices drastically and most of these devices are used in safety or security critical environments, the education of embedded software engineers is more important than ever. A critical part of their education is the development of their intuition for secure and safe software. In this paper 1 1 This research was funded by the city of Vienna (MA-23 call 21, project no. 9). we present an evaluation system used to generate fast and accurate feedback for student submission in, but not limited to, embedded software development courses. The system can be used as a first feedback loop to outline to the students where problems exist in their code and give them the opportunity to analyze and correct their errors. These extra steps ensure that the students can and will be notified early about their mistakes and can search for correct solutions, supporting the student's learning process. We present the implementation of the system and analyze its deployment in a microcontroller software development lecture. This analysis was done by means of surveys of the students and lecturers as well as a statistical analysis of the student submissions. The results show that the students made use of this extra features and even would prefer to have this feedback in other software development lectures as well.}, subject = {Student-Centered Learning Environments}, language = {en} } @inproceedings{HimmelstossHofschweigerVotzi, author = {Himmelstoss, Felix and Hofschweiger, Andreas and Votzi, Helmut}, title = {Quadratic Combined Forward-Flyback Converter}, series = {Power Conversion and Intelligent Motion Conference (PCIM) 2023, May 9-11, 2023 Nurenberg, Germany}, booktitle = {Power Conversion and Intelligent Motion Conference (PCIM) 2023, May 9-11, 2023 Nurenberg, Germany}, doi = {10.30420/566091315}, pages = {1446 -- 1453}, subject = {DC/DC converter}, language = {en} } @inproceedings{HimmelstossErtlVotzi, author = {Himmelstoss, Felix and Ertl, Benjamin and Votzi, Helmut}, title = {A new limited duty cycle step-up converter}, series = {International European Conference on Interdisciplinary Scientific Research, July 13-15, 2023, Rome, Italy}, booktitle = {International European Conference on Interdisciplinary Scientific Research, July 13-15, 2023, Rome, Italy}, pages = {811 -- 833}, subject = {DC/DC converter}, language = {en} } @inproceedings{HimmelstossEdelmoser, author = {Himmelstoss, Felix and Edelmoser, Karl}, title = {Liquid and surface disinfection with pulsed UVC LEDs}, series = {2nd Ahi Evran International Conference on Scientific Research, Kirshehir, Turkey, October 21-23, 2022}, booktitle = {2nd Ahi Evran International Conference on Scientific Research, Kirshehir, Turkey, October 21-23, 2022}, pages = {654 -- 664}, subject = {disinfection}, language = {en} } @inproceedings{HimmelstossYamanEdelmoser, author = {Himmelstoss, Felix and Yaman, Ferhat and Edelmoser, Karl}, title = {Building block for a spot welder}, series = {International Congress on Innovation Technologies \& Engineering, Sept. 2-4, 2022, Izmir, Turkey, pp. 139-148}, booktitle = {International Congress on Innovation Technologies \& Engineering, Sept. 2-4, 2022, Izmir, Turkey, pp. 139-148}, pages = {139 -- 148}, subject = {spot welding}, language = {en} } @inproceedings{Himmelstoss, author = {Himmelstoss, Felix}, title = {Concept to change the voltage transformation ratio of a DC/DC converter}, series = {Cukurova 9th International Scientific Researches Conference, Oct. 9-11, 2022, Adana, Turkey, pp. 258-273}, booktitle = {Cukurova 9th International Scientific Researches Conference, Oct. 9-11, 2022, Adana, Turkey, pp. 258-273}, pages = {258 -- 273}, subject = {DC/DC converter}, language = {en} } @inproceedings{Himmelstoss, author = {Himmelstoss, Felix}, title = {Three DC/DC Converters with continuous input and output current for LED applications}, series = {International Conference on Engineering Sciences ICES, Baku, Azerbeijan, Nov. 11-12, 2022}, booktitle = {International Conference on Engineering Sciences ICES, Baku, Azerbeijan, Nov. 11-12, 2022}, pages = {335 -- 347}, subject = {DC/DC converter}, language = {en} } @inproceedings{StohanzlKubinger, author = {Stohanzl, Martin and Kubinger, Wilfried}, title = {Low-Cost Multispectral Camera Array with Image Registration}, series = {Proceedings of the Austrian Robotics Workshop 2023, p. 146, 12-13 April, 2023, Linz, Austria}, booktitle = {Proceedings of the Austrian Robotics Workshop 2023, p. 146, 12-13 April, 2023, Linz, Austria}, pages = {146 -- 146}, subject = {Multicamera}, language = {en} } @inproceedings{Himmelstoss, author = {Himmelstoss, Felix}, title = {Modified Boost Converter with additional Boehringer network}, series = {10th International Zeugma Conference on Scientific Research, June 25-26, 2023, Gaziantep, Turkey, pp. 404-411}, booktitle = {10th International Zeugma Conference on Scientific Research, June 25-26, 2023, Gaziantep, Turkey, pp. 404-411}, pages = {404 -- 411}, subject = {DC/DC converter}, language = {en} } @misc{NemecFrohner, author = {Nemec, Iris and Frohner, Matthias}, title = {How can life science students, especially biomedical engineering students, benefit from the extra-curricular offerings and systems already established in other scientific fields?}, series = {Abstracts of the 2022 Joint Annual Conference of the Austrian ({\"O}GBMT), German (VDE DGBMT) and Swiss (SSBE) Societies for Biomedical Engineering, including the 14th Vienna International Workshop on Functional Electrical Stimulation}, journal = {Abstracts of the 2022 Joint Annual Conference of the Austrian ({\"O}GBMT), German (VDE DGBMT) and Swiss (SSBE) Societies for Biomedical Engineering, including the 14th Vienna International Workshop on Functional Electrical Stimulation}, doi = {https://doi.org/10.1515/bmt-2022-2001}, pages = {348}, subject = {extra-curricular offerings}, language = {en} } @misc{NemecMalaskovaPereiraetal., author = {Nemec, Iris and Malaskova, Michaela and Pereira, Luis and Pavao, Joao and Frohner, Matthias}, title = {Experiences of intercultural teaching activities in the field of eHealth}, series = {Abstracts of the 2022 Joint Annual Conference of the Austrian ({\"O}GBMT), German (VDE DGBMT) and Swiss (SSBE) Societies for Biomedical Engineering, including the 14th Vienna International Workshop on Functional Electrical Stimulation}, journal = {Abstracts of the 2022 Joint Annual Conference of the Austrian ({\"O}GBMT), German (VDE DGBMT) and Swiss (SSBE) Societies for Biomedical Engineering, including the 14th Vienna International Workshop on Functional Electrical Stimulation}, doi = {https://doi.org/10.1515/bmt-2022-2001}, pages = {351}, subject = {intercultural teaching}, language = {en} } @misc{TraxlerBalz, author = {Traxler, Lukas and Balz, Andrea}, title = {Current Advances in the Optical Characterization of Intraocular Lenses}, series = {Abstracts of the 2022 Joint Annual Conference of the Austrian ({\"O}GBMT), German (VDE DGBMT) and Swiss (SSBE) Societies for Biomedical Engineering, including the 14th Vienna International Workshop on Functional Electrical Stimulation}, journal = {Abstracts of the 2022 Joint Annual Conference of the Austrian ({\"O}GBMT), German (VDE DGBMT) and Swiss (SSBE) Societies for Biomedical Engineering, including the 14th Vienna International Workshop on Functional Electrical Stimulation}, doi = {https://doi.org/10.1515/bmt-2022-2001}, pages = {102}, subject = {Intraocular Lenses}, language = {en} } @inproceedings{Himmelstoss, author = {Himmelstoss, Felix}, title = {High Step-Up Converter with Continuous Input and Output Current}, series = {5th International Ankara Multidisciplinary Studies Congress, Ankara, Turkey, Jan. 27-29, 2023}, booktitle = {5th International Ankara Multidisciplinary Studies Congress, Ankara, Turkey, Jan. 27-29, 2023}, pages = {978 -- 989}, subject = {power converter}, language = {en} } @article{HanetsederLevstekTeuschlWolleretal., author = {Hanetseder, Dominik and Levstek, Tina and Teuschl-Woller, Andreas and Frank, Julia Katharina and Schaedl, Barbara and Redl, Heinz and Marolt Presen, Darja}, title = {Engineering of extracellular matrix from human iPSC-mesenchymal progenitors to enhance osteogenic capacity of human bone marrow stromal cells independent of their age}, series = {Front Bioeng Biotechnol}, volume = {11}, journal = {Front Bioeng Biotechnol}, doi = {https://doi.org/10.3389/fbioe.2023.1214019}, abstract = {Regeneration of bone defects is often limited due to compromised bone tissue physiology. Previous studies suggest that engineered extracellular matrices enhance the regenerative capacity of mesenchymal stromal cells. In this study, we used human-induced pluripotent stem cells, a scalable source of young mesenchymal progenitors (hiPSC-MPs), to generate extracellular matrix (iECM) and test its effects on the osteogenic capacity of human bone-marrow mesenchymal stromal cells (BMSCs). iECM was deposited as a layer on cell culture dishes and into three-dimensional (3D) silk-based spongy scaffolds. After decellularization, iECM maintained inherent structural proteins including collagens, fibronectin and laminin, and contained minimal residual DNA. Young adult and aged BMSCs cultured on the iECM layer in osteogenic medium exhibited a significant increase in proliferation, osteogenic marker expression, and mineralization as compared to tissue culture plastic. With BMSCs from aged donors, matrix mineralization was only detected when cultured on iECM, but not on tissue culture plastic. When cultured in 3D iECM/silk scaffolds, BMSCs exhibited significantly increased osteogenic gene expression levels and bone matrix deposition. iECM layer showed a similar enhancement of aged BMSC proliferation, osteogenic gene expression, and mineralization compared with extracellular matrix layers derived from young adult or aged BMSCs. However, iECM increased osteogenic differentiation and decreased adipocyte formation compared with single protein substrates including collagen and fibronectin. Together, our data suggest that the microenvironment comprised of iECM can enhance the osteogenic activity of BMSCs, providing a bioactive and scalable biomaterial strategy for enhancing bone regeneration in patients with delayed or failed bone healing.}, subject = {aging}, language = {en} } @article{BernhardMaroltPresenLietal., author = {Bernhard, Jonathan C and Marolt Presen, Darja and Li, Ming and Monforte, Xavier and Ferguson, James and Leinfellner, Gabriele and Heimel, Patrick and Betti, Susanne L and Shu, Sharon and Teuschl-Woller, Andreas H and Tangl, Stefan and Redl, Heinz and Vunjak-Novakovic, Gordana}, title = {Effects of Endochondral and Intramembranous Ossification Pathways on Bone Tissue Formation and Vascularization in Human Tissue-Engineered Grafts}, series = {Cells}, volume = {11}, journal = {Cells}, number = {19:3070}, doi = {10.3390/cells11193070}, abstract = {Bone grafts can be engineered by differentiating human mesenchymal stromal cells (MSCs) via the endochondral and intramembranous ossification pathways. We evaluated the effects of each pathway on the properties of engineered bone grafts and their capacity to drive bone regeneration. Bone-marrow-derived MSCs were differentiated on silk scaffolds into either hypertrophic chondrocytes (hyper) or osteoblasts (osteo) over 5 weeks of in vitro cultivation, and were implanted subcutaneously for 12 weeks. The pathways' constructs were evaluated over time with respect to gene expression, composition, histomorphology, microstructure, vascularization and biomechanics. Hypertrophic chondrocytes expressed higher levels of osteogenic genes and deposited significantly more bone mineral and proteins than the osteoblasts. Before implantation, the mineral in the hyper group was less mature than that in the osteo group. Following 12 weeks of implantation, the hyper group had increased mineral density but a similar overall mineral composition compared with the osteo group. The hyper group also displayed significantly more blood vessel infiltration than the osteo group. Both groups contained M2 macrophages, indicating bone regeneration. These data suggest that, similar to the body's repair processes, endochondral pathway might be more advantageous when regenerating large defects, whereas intramembranous ossification could be utilized to guide the tissue formation pattern with a scaffold architecture.}, subject = {bone tissue engineering}, language = {en} } @article{GollmannTepekoeylueGraberHirschetal., author = {Gollmann-Tepek{\"o}yl{\"u}, Can and Graber, Michael and Hirsch, Jakob and Mair, Sophia and Naschberger, Andreas and P{\"o}lzl, Leo and N{\"a}gele, Felix and Kirchmair, Elke and Degenhart, Gerald and Demetz, Egon and Hilbe, Richard and Chen, Hao-Yu and Engert, James C and B{\"o}hm, Anna and Franz, Nadja and Lobenwein, Daniela and Lener, Daniela and Fuchs, Christiane and Weihs, Anna and T{\"o}chterle, Sonja and Vogel, Georg F and Schweiger, Victor and Eder, Jonas and Pietschmann, Peter and Seifert, Markus and Kronenberg, Florian and Coassin, Stefan and Blumer, Michael and Hackl, Hubert and Meyer, Dirk and Feuchtner, Gudrun and Kirchmair, Rudolf and Troppmair, Jakob and Krane, Markus and Weiss, G{\"u}nther and Tsimikas, Sotirios and Thanassoulis, George and Grimm, Michael and Rupp, Bernhard and Huber, Lukas A and Zhang, Shen-Ying and Casanova, Jean-Laurent and Tancevski, Ivan and Holfeld, Johannes}, title = {Toll-Like Receptor 3 Mediates Aortic Stenosis Through a Conserved Mechanism of Calcification}, series = {Circulation}, volume = {147}, journal = {Circulation}, number = {20}, doi = {10.1161/CIRCULATIONAHA.122.063481}, pages = {1518 -- 1533}, subject = {Toll-like receptor 3}, language = {en} } @inproceedings{JankWagnerUrbaueretal., author = {Jank, Miran and Wagner, Fabian and Urbauer, Philipp and Balz, Andrea and Forjan, Mathias}, title = {Extended Reality Solutions in Medical Context and Educational Approaches}, series = {Healthcare Transformation with Informatics and Artificial Intelligence / 21th International Conference on Informatics, Management and Technology in Healthcare}, booktitle = {Healthcare Transformation with Informatics and Artificial Intelligence / 21th International Conference on Informatics, Management and Technology in Healthcare}, publisher = {iOS Press}, doi = {10.3233/SHTI230548}, pages = {521 -- 524}, abstract = {The healthcare sector is growing in importance as people continue to age and pandemics complicate the boundary conditions of such systems. The number of innovative approaches to solve singular tasks and problems in this area is only slowly increasing. This is particularly evident when looking at medical technology planning, medical training and process simulation. In this paper a concept for versatile digital improvements to these problems by using state of the art development methods of Virtual Reality (VR) and Augmented Reality (AR) are presented. The programming and design of the software is done with the help of Unity Engine, which provides an open interface for docking with the developed framework for future work. The solutions were tested under domain specific environments and have shown good results and positive feedback.}, subject = {Virtual Reality}, language = {en} } @misc{BalzLangerFrohneretal., author = {Balz, Andrea and Langer, Sarah and Frohner, Matthias and Forjan, Mathias}, title = {Development of Internationalized Teaching and Training Modules for Healthcare Professionals}, series = {Abstracts of the 2022 Joint Annual Conference of the Austrian ({\"O}GBMT), German (VDE DGBMT) and Swiss (SSBE) Societies for Biomedical Engineering, including the 14th Vienna International Workshop on Functional Electrical Stimulation}, journal = {Abstracts of the 2022 Joint Annual Conference of the Austrian ({\"O}GBMT), German (VDE DGBMT) and Swiss (SSBE) Societies for Biomedical Engineering, including the 14th Vienna International Workshop on Functional Electrical Stimulation}, doi = {https://doi.org/10.1515/bmt-2022-2001}, pages = {353}, subject = {Internationalized Teaching}, language = {en} } @article{XuGeppLenggeretal., author = {Xu, Yingyang and Gepp, Barbara and Lengger, Nina and Yin, Jia and Breiteneder, Heimo}, title = {Identification of probable pectinesterase as a major allergen of pollen of the Asian white birch (Betula platyphylla) in northern China}, series = {Asian Pac J Allergy Immunol}, journal = {Asian Pac J Allergy Immunol}, doi = {10.12932/AP-100722-1409}, subject = {birch pollen allergy}, language = {en} } @misc{EidiBalzForjan, author = {Eidi, Nada and Balz, Andrea and Forjan, Mathias}, title = {MedTech-mR - Creating a Virtual Enviroment for Medical Training and Room Planning}, series = {Abstracts of the 2022 Joint Annual Conference of the Austrian ({\"O}GBMT), German (VDE DGBMT) and Swiss (SSBE) Societies for Biomedical Engineering, including the 14th Vienna International Workshop on Functional Electrical Stimulation}, journal = {Abstracts of the 2022 Joint Annual Conference of the Austrian ({\"O}GBMT), German (VDE DGBMT) and Swiss (SSBE) Societies for Biomedical Engineering, including the 14th Vienna International Workshop on Functional Electrical Stimulation}, doi = {https://doi.org/10.1515/bmt-2022-2001}, pages = {349}, subject = {Medical Training}, language = {en} } @misc{MalaskovaForjan, author = {Malaskova, Michaela and Forjan, Mathias}, title = {Current topics in Life Science Engineering lectures}, series = {Abstracts of the 2022 Joint Annual Conference of the Austrian ({\"O}GBMT), German (VDE DGBMT) and Swiss (SSBE) Societies for Biomedical Engineering, including the 14th Vienna International Workshop on Functional Electrical Stimulation}, journal = {Abstracts of the 2022 Joint Annual Conference of the Austrian ({\"O}GBMT), German (VDE DGBMT) and Swiss (SSBE) Societies for Biomedical Engineering, including the 14th Vienna International Workshop on Functional Electrical Stimulation}, doi = {https://doi.org/10.1515/bmt-2022-2001}, pages = {350}, subject = {Life Science Engineering}, language = {en} } @article{AhlbornKupkaWeissetal., author = {Ahlborn, Felix and Kupka, Friedrich and Weiss, Achim and Flaskamp, Martin}, title = {Stellar evolution models with overshooting based on 3-equation non-local theories: II. Main sequence models of A- and B-type stars}, series = {Astronomy \& Astrophysics}, journal = {Astronomy \& Astrophysics}, number = {Volume 667}, doi = {https://doi.org/10.1051/0004-6361/202243126}, pages = {Article Number A97}, subject = {convection}, language = {en} } @article{KupkaAhlbornWeiss, author = {Kupka, Friedrich and Ahlborn, Felix and Weiss, Achim}, title = {Stellar evolution models with overshooting based on 3-equation non-local theories: I. Physical basics and the computation of the dissipation rate}, series = {Astronomy \& Astrophysics}, journal = {Astronomy \& Astrophysics}, number = {Volume 667}, doi = {https://doi.org/10.1051/0004-6361/202243125}, pages = {Article Number A96}, subject = {convection}, language = {en} } @phdthesis{Tomasch, author = {Tomasch, Janine}, title = {Strategies to improve the myogenic outcome of skeletal muscle tissue engineering approaches through optimization of biomaterial properties and mechanical stimuli}, school = {Fachhochschule Technikum Wien}, subject = {muscle}, language = {en} } @article{Huber, author = {Huber, Albert}, title = {Quasilocal corrections to Bondi's mass-loss formula and dynamical horizons}, series = {Physical Review D}, volume = {Vol. 108}, journal = {Physical Review D}, number = {issue 8}, doi = {https://doi.org/10.1103/PhysRevD.108.084056}, subject = {Bondi´s mass-loss formula}, language = {en} } @misc{KubaKremser, author = {Kuba-Kremser, Markus}, title = {Asymptotic expansions of Integrals, Moment convergence and Multiple zeta values}, subject = {MVZs}, language = {en} } @misc{Kupka, author = {Kupka, Friedrich}, title = {Requirements from WP123200}, subject = {astrophysics}, language = {en} } @misc{Kupka, author = {Kupka, Friedrich}, title = {Recent Theoretical Advances about Core Overshooting and Convective Penetration from a Convective Envelope}, subject = {astrophysics}, language = {en} } @misc{Kupka, author = {Kupka, Friedrich}, title = {Non-local Models of Convective Core Overshooting in A- and B-type Stars}, subject = {astrophysics}, language = {en} } @misc{KupkaZaussinger, author = {Kupka, Friedrich and Zaussinger, Florian}, title = {Compressible Double-Diffusive Convection}, subject = {astrophysics}, language = {en} } @misc{Kupka, author = {Kupka, Friedrich}, title = {Numerical Simulation of A-type and White Dwarf Stars}, subject = {astrophysics}, language = {en} }