TY - CHAP A1 - Votzi, Helmut A1 - Himmelstoß, Felix A1 - Ertl, Hans T1 - Basic Linear-Mode Solar-Cell Simulators T2 - Proceedings of the Industrial Electronic Conference (IECON 2009) KW - Solar Cell Y1 - 2019 SP - 261 EP - 265 ER - TY - GEN A1 - Votzi, Helmut A1 - Himmelstoß, Felix A1 - Ertl, Hans T1 - Hybrid Filter for a Multi-Cell Switch-Mode Power Amplifier KW - Power Amplifier KW - Linear Amplifier KW - Hybrid Filter KW - Amplifier Y1 - ER - TY - CHAP A1 - Votzi, Helmut A1 - Himmelstoß, Felix A1 - Ertl, Hans T1 - Active Hybrid Filter Applied with a Multi-Cell Switch-Mode Power Amplifier T2 - Power Electronics and Motion Control PEMC 2018, 27-29 August 2018, Budapest, Hungary KW - Switch-mode power amplifier KW - Linear amplifier KW - Hybrid filter KW - Amplifier Y1 - 2018 SN - 978-1-5386-4198-9 SP - 52 EP - 57 ER - TY - GEN A1 - Votzi, Helmut A1 - Himmelstoß, Felix A1 - Ertl, Hans T1 - Active Hybrid Filter Applied with a Multi-Cell Switch-Mode Power Amplifier KW - Switch-mode power amplifier KW - Linear amplifier KW - Hybrid filter KW - Amplifier Y1 - ER - TY - CHAP A1 - Votzi, Helmut A1 - Himmelstoß, Felix A1 - Ertl, Hans T1 - Hybrid Filter for a Multi-Cell Switch-Mode Power Amplifier T2 - Proceedings of the 2017 International Conference on Electrical Drives and Power Electronics (EDPE), 4-6 October 2017, Dubrovnik, Croatia KW - Power Amplifier KW - Linear Amplifier KW - Hybrid Filter KW - Amplifier Y1 - 2017 SN - 978-1-5386-3380-9 SP - 112 EP - 117 ER - TY - JOUR A1 - Votzi, Helmut A1 - Himmelstoß, Felix A1 - Ertl, Hans T1 - Active Hybrid Filter Applied with a Multi-Cell Switch-Mode Power Amplifier JF - Power Electronics and Motion Control PEMC 2018, 27-29 August 2018, Budapest, Hungary KW - Amplifier KW - Hybrid filter KW - Linear amplifier KW - Switch-mode power amplifier Y1 - 2019 ER - TY - JOUR A1 - Rothbauer, Mario A1 - Byrne, Ruth A. A1 - Schobesberger, Silvia A1 - Olmos Calvo, Isabel A1 - Fischer, Anita A1 - Reihs, Eva I. A1 - Spitz, Sarah A1 - Bachmann, Barbara A1 - Sevelda, Florian A1 - Holinka, Johannes A1 - Holnthoner, Wolfgang A1 - Redl, Heinz A1 - Toegel, Stefan A1 - Windhager, Reinhard A1 - Kiener, Hans P. A1 - Ertl, Peter T1 - Establishment of a human three-dimensional chip-based chondro-synovial coculture joint model for reciprocal cross talk studies in arthritis research JF - Lab on a Chip N2 - Rheumatoid arthritis is characterised by a progressive, intermittent inflammation at the synovial membrane, which ultimately leads to the destruction of the synovial joint. The synovial membrane as the joint capsule's inner layer is lined with fibroblast-like synoviocytes that are the key player supporting persistent arthritis leading to bone erosion and cartilage destruction. While microfluidic models that model molecular aspects of bone erosion between bone-derived cells and synoviocytes have been established, RA's synovial-chondral axis has not yet been realised using a microfluidic 3D model based on human patient in vitro cultures. Consequently, we established a chip-based three-dimensional tissue coculture model that simulates the reciprocal cross talk between individual synovial and chondral organoids. When co-cultivated with synovial organoids, we could demonstrate that chondral organoids induce a higher degree of cartilage physiology and architecture and show differential cytokine response compared to their respective monocultures highlighting the importance of reciprocal tissue-level cross talk in the modelling of arthritic diseases. KW - Tissue Engineering KW - coculture joint model KW - arthritis KW - human three-dimensional chip Y1 - VL - 2021 IS - 21 SP - 4128 EP - 4143 ER -