TY - CHAP A1 - Dannereder, Florian A1 - Engelhardt-Nowitzki, Corinna A1 - Markl, Erich A1 - Lackner, Maximilian A1 - Kreith, Josef A1 - Pachschwöll, Paul Herwig A1 - Aburaia, Mohamed A1 - Shooman, Diane T1 - Development of a 3D-Printed Bionic Hand with Muscle- and Force Control T2 - Proceedings of the Austrian Robotics Workshop 2018 KW - Robotics Y1 - ER - TY - CHAP A1 - Wöber, Wilfried A1 - Schulmeister, Klemens A1 - Aschauer, Christian A1 - Gronauer, Andreas A1 - Tomic, Dana Kathrin A1 - Fensel, Anna A1 - Riegler, Thomas A1 - Handler, Franz A1 - Hörmann, Sandra A1 - Otte, Marcel A1 - Auer, Wolfgang T1 - Adaptive Agricultural Processes via Open Interfaces and Linked Services T2 - Referate der 34. GIL-Jahrestagung - IT-Standards in der Agrar- und Ernährungswissenschaft KW - Adaption KW - Agriculture Y1 - 2019 SP - 157 EP - 160 ER - TY - CHAP A1 - Gonzalez-Gutierrez, Joamin A1 - Treitler, Manuel A1 - Spoerk, Martin A1 - Arbeiter, Florian A1 - Schuschnigg, Stephan A1 - Lammer, Herfried A1 - Lackner, Maximilian A1 - Aburaia, Mohamed A1 - Poszvek, Günther A1 - Zhang, Haiguang A1 - Sapkota, Janak A1 - Holzer, Clemes T1 - Carbon fiber reinforced thermoplastics for material extrusion additive manufacturing T2 - Conference proceedings of 35th International Conference of the Polymer Processing Society N2 - In an effort to broaden the engineering applications of material extrusion based additive manufacturing (MEAM), new materials are being developed. Adding carbon-fibers (CF) has been one strategy to increase the mechanical performance of different thermoplastics. One challenge is to determine the amount of CF needed to increase the mechanical performance without affecting the “printability” of the compounds. In this paper, different amounts (10, 15, and 20 vol.%) of CF were added to recycled polypropylene (rPP) and polyamide 12 (PA12). A compatibilizer was used for rPP, but not for PA12. Filaments for MEAM were extruded from the different compounds and the viscosity as well as the tensile properties were measured and compared to the processed polymeric matrices. It was observed that the viscosities at the angular frequencies relevant for MEAM (100 to 200 rad/s) were not significantly different for rPP+CF compounds, but it was higher for PA12+CF compounds. As expected, the elongation at break significantly decreased with the addition of CF for all compounds. For the composites with an rPP matrix, the Young’s modulus and the ultimate tensile strength (UTS) continuously increased as the CF content increased to 20 vol.%. For PA12-based materials, the Young’s modulus and the UTS increased with CF content, but adding more than 15 vol.% did not further improve these values. Therefore, it was concluded that for PA12 the maximum amount of CF that should be added was 15 vol.%. Using scanning electron microscopy, it was observed that the CF were homogeneously dispersed in the rPP matrix, but not so well in the PA12 matrix, with fibers being more concentrated towards the rim of the filament. Finally, filaments of rPP, rPP+20CF, PA12 and PA12+15CF were used to print complex geometries by means of MEAM, and it was observed that CF helped to reduce the warpage compared to the unfilled filaments. A potential application of this phenomenon could be the reduction of the bed temperature to develop a more energy efficient MEAM process for semi-crystalline polymers. KW - Additive Manufacturing KW - Materials Y1 - ER - TY - CHAP A1 - Rauer, Johannes A1 - Wöber, Wilfried A1 - Aburaia, Mohamed T1 - An Autonomous Mobile Handling Robot Using Object Recognition T2 - Proceedings of ARW & OAGM Workshop 2019 KW - Mobile Robotics Y1 - 2020 N1 - https://workshops.aapr.at/wp-content/uploads/2019/05/ARW-OAGM19_06.pdf ER - TY - CHAP A1 - Aburaia, Mohamed A1 - Lackner, Maximilian A1 - Grünbichler, Hannes A1 - Engelhardt-Nowitzki, Corinna A1 - Markl, Erich A1 - Lammer, H. A1 - Zhang, Haiguang A1 - Wang, J. A1 - Sapotka, J. A1 - Janics, T. A1 - Hailberger, M. T1 - Freeform-FDM process development using natural fibre reinforced biopolymers T2 - 2nd International Conference on 3D Prinitng Technology and Innovation March 19-20, 2018 London, UK KW - Freeform Printing KW - Additive Manufacturing Y1 - ER - TY - CHAP A1 - Dannereder, Florian A1 - Pachschwöll, Paul A1 - Aburaia, Mohamed A1 - Markl, Erich A1 - Lackner, Maximilian A1 - Engelhardt-Nowitzki, Corinna A1 - Shooman, Diane T1 - Development of a 3D-printed Bionic Hand with Muscle- and Force Control T2 - Austrian Robotics Workshop 2018 KW - Robotics KW - Prosthetics KW - 3D-Printing Y1 - ER - TY - CHAP A1 - Tomic, Dana Kathrin A1 - Drenjanac, Domagoj A1 - Lazendic, Goran A1 - Hörmann, Sandra A1 - Handler, Franz A1 - Wöber, Wilfried A1 - Schulmeister, Klemens A1 - Otte, Marcel A1 - Auer, Wolfgang T1 - Semantic Services for Adaptive Processes in Livestock Farming T2 - International Conference of Agricultural Engineering (AgEng 2014) KW - Agriculture KW - Semantic Services KW - Adaption Y1 - 2019 ER - TY - JOUR A1 - Tomic, Dana Kathrin A1 - Drenjanac, Domagoj A1 - Lazendic, Goran A1 - Hörmann, Sandra A1 - Handler, Franz A1 - Wöber, Wilfried A1 - Aschauer, Christian A1 - Auer, Wolfgang T1 - Ontologies and semantic services for process optimization in agricultural production JF - e&i Elektrotechnik und Informationstechnik KW - Semantics KW - Production Process KW - Innovation KW - Agriculture Y1 - 2019 ER - TY - JOUR A1 - Kamravamanesh, Donya A1 - Pflügl, Stefan A1 - Nischkauer, Winfried A1 - Limbeck, Andreas A1 - Lackner, Maximilian A1 - Herwig, Christoph T1 - Photosynthetic poly-β-hydroxybutyrate accumulation in unicellular cyanobacterium Synechocystis sp. PCC 6714 JF - AMB Express KW - Bacteria Y1 - 2018 VL - 143 IS - 7 ER - TY - GEN A1 - Kamravamanesh, Donya A1 - Pflügl, Stefan A1 - Lackner, Maximilian A1 - Herwig, Christoph T1 - Photosynthetic poly-β-hydroxybutyrate accumulation in unicellular cyanobacterium Synechocystis sp. PCC 6714 KW - Bacteria Y1 - 2018 ER -