@article{WincklerKruegerSchnitzleretal.2014, author = {Winckler, Silvia and Krueger, Rolf and Schnitzler, Thomas and Zang, Werner and Fischer, Rainer and Biselli, Manfred}, title = {A sensitive monitoring system for mammalian cell cultivation processes: a PAT approach}, series = {Bioprocess and biosystems engineering}, volume = {37}, journal = {Bioprocess and biosystems engineering}, number = {5}, publisher = {Springer}, address = {Berlin, Heidelberg}, issn = {1615-7591 (Print) 1615-7605 (Online)}, doi = {10.1007/s00449-013-1062-8}, pages = {901 -- 912}, year = {2014}, abstract = {Biopharmaceuticals such as antibodies are produced in cultivated mammalian cells, which must be monitored to comply with good manufacturing practice. We, therefore, developed a fully automated system comprising a specific exhaust gas analyzer, inline analytics and a corresponding algorithm to precisely determine the oxygen uptake rate, carbon dioxide evolution rate, carbon dioxide transfer rate, transfer quotient and respiratory quotient without interrupting the ongoing cultivation, in order to assess its reproducibility. The system was verified using chemical simulation experiments and was able to measure the respiratory activity of hybridoma cells and DG44 cells (derived from Chinese hamster ovary cells) with satisfactory results at a minimum viable cell density of ~2.0 × 10⁵ cells ml⁻¹. The system was suitable for both batch and fed-batch cultivations in bubble-aerated and membrane-aerated reactors, with and without the control of pH and dissolved oxygen.}, language = {en} } @article{WindmuellerSchapsZantisetal.2024, author = {Windm{\"u}ller, Anna and Schaps, Kristian and Zantis, Frederik and Domgans, Anna and Taklu, Bereket Woldegbreal and Yang, Tingting and Tsai, Chih-Long and Schierholz, Roland and Yu, Shicheng and Kungl, Hans and Tempel, Hermann and Dunin-Borkowski, Rafal E. and H{\"u}ning, Felix and Hwang, Bing Joe and Eichel, R{\"u}diger-A.}, title = {Electrochemical activation of LiGaO2: implications for ga-doped garnet solid electrolytes in li-metal batteries}, series = {ACS Applied Materials \& Interfaces}, volume = {16}, journal = {ACS Applied Materials \& Interfaces}, number = {30}, publisher = {ACS Publications}, address = {Washington, DC}, issn = {39181-3919}, doi = {10.1021/acsami.4c03729}, pages = {14 Seiten}, year = {2024}, abstract = {Ga-doped Li7La3Zr2O12 garnet solid electrolytes exhibit the highest Li-ion conductivities among the oxide-type garnet-structured solid electrolytes, but instabilities toward Li metal hamper their practical application. The instabilities have been assigned to direct chemical reactions between LiGaO2 coexisting phases and Li metal by several groups previously. Yet, the understanding of the role of LiGaO2 in the electrochemical cell and its electrochemical properties is still lacking. Here, we are investigating the electrochemical properties of LiGaO2 through electrochemical tests in galvanostatic cells versus Li metal and complementary ex situ studies via confocal Raman microscopy, quantitative phase analysis based on powder X-ray diffraction, energy-dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, and electron energy loss spectroscopy. The results demonstrate considerable and surprising electrochemical activity, with high reversibility. A three-stage reaction mechanism is derived, including reversible electrochemical reactions that lead to the formation of highly electronically conducting products. The results have considerable implications for the use of Ga-doped Li7La3Zr2O12 electrolytes in all-solid-state Li-metal battery applications and raise the need for advanced materials engineering to realize Ga-doped Li7La3Zr2O12for practical use.}, language = {en} } @article{WingensMayPfaff2019, author = {Wingens, Niklas and May, J{\"o}rg and Pfaff, Raphael}, title = {Betrieblich-technische Innovationsans{\"a}tze zur Bremsprobe nach einer Prozess{\"a}nderung}, series = {ETR - Eisenbahntechnische Rundschau}, journal = {ETR - Eisenbahntechnische Rundschau}, number = {5}, publisher = {DVV Media Group}, address = {Hamburg}, issn = {0013-2845}, pages = {5 Seiten}, year = {2019}, language = {de} } @article{Winkler1995, author = {Winkler, Norbert}, title = {Vermessung zur Bauzeit der Zitadelle und heute : Bastion Wilhelmus / von Norbert Winkler}, series = {4 Bastionen, 4 Aspekte : aktuelle Arbeiten zur Zitadelle J{\"u}lich ; Katalog zur Ausstellung im Hexenturm 10.11.95 - 14.02.96 / [Veranst.: Stadtgeschichtliches Museum J{\"u}lich]. Mit Beitr. von Guido von B{\"u}ren ... [Hrsg.: Marcell Perse]}, journal = {4 Bastionen, 4 Aspekte : aktuelle Arbeiten zur Zitadelle J{\"u}lich ; Katalog zur Ausstellung im Hexenturm 10.11.95 - 14.02.96 / [Veranst.: Stadtgeschichtliches Museum J{\"u}lich]. Mit Beitr. von Guido von B{\"u}ren ... [Hrsg.: Marcell Perse]}, address = {J{\"u}lich}, pages = {77 -- 115}, year = {1995}, language = {de} } @article{Winkler2006, author = {Winkler, Norbert}, title = {Vermessung}, series = {Zahlentafeln f{\"u}r den Baubetrieb / Hoffmann, Manfred ; Kuhlmann, Willy [Hrsg.]. 7., vollst. {\"u}berarb. Aufl.}, journal = {Zahlentafeln f{\"u}r den Baubetrieb / Hoffmann, Manfred ; Kuhlmann, Willy [Hrsg.]. 7., vollst. {\"u}berarb. Aufl.}, publisher = {Teubner}, address = {Wiesbaden}, isbn = {3-519-65220-X}, pages = {147 -- 160}, year = {2006}, language = {de} } @article{Winkler2006, author = {Winkler, Norbert}, title = {Vermessung}, series = {Beispiele f{\"u}r die Baubetriebspraxis / Hoffmann, Manfred ; Kuhlmann, Willy [Hrsg.].}, journal = {Beispiele f{\"u}r die Baubetriebspraxis / Hoffmann, Manfred ; Kuhlmann, Willy [Hrsg.].}, publisher = {Teubner}, address = {Wiesbaden}, isbn = {978-3-8351-0002-2}, pages = {9 -- 34}, year = {2006}, language = {de} } @article{WissenBogdanskiScheeretal.2005, author = {Wissen, M. and Bogdanski, N. and Scheer, H.-C. and Bitz, Andreas and Ahrens, G. and Gruetzner, G.}, title = {Implication of the light polarisation for UV curing of pre-patterned resists}, series = {Microelectronic Engineering}, volume = {78-79}, journal = {Microelectronic Engineering}, issn = {0167-9317}, doi = {10.1016/j.mee.2004.12.099}, pages = {659 -- 664}, year = {2005}, language = {en} } @article{WissenbachSixBongaertsetal.1995, author = {Wissenbach, U. and Six, S. and Bongaerts, Johannes and Ternes, D. and Steinwachs, S. and Unden, G.}, title = {A third periplasmic transport system for l-arginine in Escherichia coli: molecular characterization of the artPIQMJ genes, arginine binding and transport}, series = {Molecular microbiology}, volume = {Vol. 17}, journal = {Molecular microbiology}, number = {Iss. 4}, issn = {1365-2958 (E-Journal); 0950-382x (Print)}, pages = {675 -- 686}, year = {1995}, language = {en} } @article{WittBogner1990, author = {Witt, Klaus and Bogner, D.}, title = {Druckmessung mit zukunftsorientierten Perspektiven}, series = {Sensor Report. 5 (1990), H. 1}, journal = {Sensor Report. 5 (1990), H. 1}, isbn = {0179-9592}, pages = {8 -- 14}, year = {1990}, language = {de} } @article{Wittmann1993, author = {Wittmann, Klaus}, title = {The microgravity User Support Centre}, series = {Space Technology - Industrial and Commercial Applications. 13 (1993), H. 2}, journal = {Space Technology - Industrial and Commercial Applications. 13 (1993), H. 2}, isbn = {0892-9270}, pages = {121 -- 124}, year = {1993}, language = {en} }