TY - BOOK A1 - Schürmann, Wilhelm A1 - Deutschmann, Thomas A1 - Schmidt, Michael A1 - Bauer, Wilfried T1 - Aspekte der Großstadt : zeigenössische deutsche Fotografie / Thomas Deutschmann ; Michael Schmidt ; Wilfried Bauer ; Wilhelm Schürmann Y1 - 1981 N1 - Ausstellung "Aspekte der Großstadt" , Museum Folkwang (1981.04.22 - 05.22, Essen) CY - Essen ER - TY - JOUR A1 - Selmer, Thorsten A1 - Recksiek, Michael A1 - Dierks, Thomas A1 - Schmidt, Bernhard T1 - Sulfatases, Trapping of the Sulfated Enzyme Intermediate by Substituting the Active Site Formylglycine / Recksiek, Michael ; Selmer, Thorsten ; Dierks, Thomas ; Schmidt, Bernhard ; Figura, Kurt von JF - Journal of Biological Chemistry. 273 (1998), H. 11 Y1 - 1998 SN - 1083-351X SP - 6096 EP - 6103 ER - TY - JOUR A1 - Biselli, Manfred A1 - Noll, Thomas A1 - Jelinek, Nanni A1 - Schmidt, Sebastian T1 - Cultivation of Hematopoietic Stem and Progenitor Cells: biochemical Engineering Aspects / Thomas Noll, Nanni Jelinek, Sebastian Schmidt, Manfred Biselli und Christian Wandrey JF - Tools and Applications of Biochemical Engineering Science Y1 - 2002 SN - 3-540-42250-1 N1 - Advances in Biochemical Engineering/Biotechnology. 74 SP - 111 EP - 128 PB - Springer CY - Berlin ER - TY - BOOK A1 - Schmidt, Ludwig A1 - Müller, Thomas A1 - Stöcker, Ernst E. T1 - Die Organschaft im Körperschaftsteuer-, Gewerbesteuer- und Umsatzsteuerrecht Y1 - 1993 SN - 3-482-44604-0 PB - Verl. Neue Wirtschafts-Briefe CY - Herne ET - 4. Aufl. ER - TY - BOOK A1 - Schmidt, Ludwig A1 - Müller, Thomas A1 - Stöcker, Ernst E. T1 - Die Organschaft im Körperschaftsteuer-, Gewerbesteuer- und Umsatzsteuerrecht Y1 - 1999 SN - 3-482-44605-9 PB - Verl. Neue Wirtschafts-Briefe CY - Herne ET - 5. Aufl. ER - TY - BOOK A1 - Schmidt, Ludwig A1 - Müller, Thomas A1 - Stöcker, Ernst E. T1 - Die Organschaft im Körperschaftsteuer-, Gewerbesteuer- und Umsatzsteuerrecht Y1 - 2003 SN - 3-482-44606-7 PB - Verl. Neue Wirtschafts-Briefe CY - Herne ET - 6. Aufl. ER - TY - CHAP A1 - Eichler, Fabian A1 - Skupin, Marco A1 - Thurn, Laura A1 - Kasch, Susanne A1 - Schmidt, Thomas T1 - Operating limits for beam melting of glass materials T2 - Modern Technologies in Manufacturing (MTeM 2019) N2 - Laser-based Additive Manufacturing (AM) processes for the use of metals out of the powder bed have been investigated profusely and are prevalent in industry. Although there is a broad field of application, Laser Powder Bed Fusion (LPBF), also known as Selective Laser Melting (SLM) of glass is not fully developed yet. The material properties of glass are significantly different from the investigated metallic material for LPBF so far. As such, the process cannot be transferred, and the parameter limits and the process sequence must be redefined for glass. Starting with the characterization of glass powders, a parameter field is initially confined to investigate the process parameter of different glass powder using LPBFprocess. A feasibility study is carried out to process borosilicate glass powder. The effects of process parameters on the dimensional accuracy of fabricated parts out of borosilicate and hints for the post-processing are analysed and presented in this paper. Y1 - 2019 U6 - https://doi.org/10.1051/matecconf/201929901004 N1 - MATEC Web of Conferences 299; MTeM 2019 VL - 299 IS - Article 01004 ER - TY - JOUR A1 - Kasch, Susanne A1 - Schmidt, Thomas A1 - Jahn, Simon A1 - Eichler, Fabian A1 - Thurn, Laura A1 - Bremen, Sebastian T1 - Lösungsansätze und Verfahrenskonzepte zum Laserstrahlschmelzen von Glas JF - Schweissen und Schneiden Y1 - 2021 SN - 0036-7184 VL - 73 IS - Heft 1-2 SP - 32 EP - 39 PB - DVS Verlag CY - Düsseldorf ER - TY - CHAP A1 - Kasch, Susanne A1 - Schmidt, Thomas A1 - Eichler, Fabian A1 - Thurn, Laura A1 - Jahn, Simon A1 - Bremen, Sebastian T1 - Solution approaches and process concepts for powder bed-based melting of glass T2 - Industrializing Additive Manufacturing. Proceedings of AMPA2020 N2 - In the study, the process chain of additive manufacturing by means of powder bed fusion will be presented based on the material glass. In order to reliably process components additively, new concepts with different solutions were developed and investigated. Compared to established metallic materials, the properties of glass materials differ significantly. Therefore, the process control was adapted to the material glass in the investigations. With extensive parameter studies based on various glass powders such as borosilicate glass and quartz glass, scientifically proven results on powder bed fusion of glass are presented. Based on the determination of the particle properties with different methods, extensive investigations are made regarding the melting behavior of glass by means of laser beams. Furthermore, the experimental setup was steadily expanded. In addition to the integration of coaxial temperature measurement and regulation, preheating of the building platform is of major importance. This offers the possibility to perform 3D printing at the transformation temperatures of the glass materials. To improve the component’s properties, the influence of a subsequent heat treatment was also investigated. The experience gained was incorporated into a new experimental system, which allows a much better exploration of the 3D printing of glass. Currently, studies are being conducted to improve surface texture, building accuracy, and geometrical capabilities using three-dimensional specimen. The contribution shows the development of research in the field of 3D printing of glass, gives an insight into the machine and process engineering as well as an outlook on the possibilities and applications. KW - Glass powder KW - Laser processing KW - Additive manufacturing KW - Melting KW - L-PBF Y1 - 2020 SN - 978-3-030-54333-4 (Print) SN - 978-3-030-54334-1 (Online) U6 - https://doi.org/10.1007/978-3-030-54334-1_7 N1 - International Conference on Additive Manufacturing in Products and Applications. 01.-03. September 2020. Zurich, Switzerland SP - 82 EP - 95 PB - Springer CY - Cham ER - TY - RPRT A1 - Geißler, Karsten A1 - Prokop, Ines A1 - Bubner, André A1 - Egner, Ralf A1 - Heyde, Stefan A1 - Kempkes, Marian A1 - Kühn, Bertram A1 - Laumann, Jörg A1 - Lieberwirth, Peter A1 - Naumes, Johannes A1 - Ruga, Julija A1 - Schilling, Sivo A1 - Schmidt, Herbert A1 - Ummenhofer, Thomas T1 - Verbesserung der Praxistauglichkeit der Baunormen durch pränormative Arbeit – Teilantrag 3: Stahlbau, Abschlussbericht Y1 - 2015 SN - 978-3-8167-9539-1 PB - Fraunhofer IRB Verlag CY - Stuttgart ER -