@unpublished{LattnerGellerKluck2023, author = {Lattner, Yannick and Geller, Marius and Kluck, Norbert}, title = {Efficiency Approximation of Centrifugal Compressors in the Cordier Diagram}, doi = {10.26205/opus-3366}, url = {https://nbn-resolving.org/urn:nbn:de:hbz:dm13-33661}, pages = {12}, year = {2023}, abstract = {We present a simulation data-based efficiency approximation for radial turbocompressors, which is implemented in the well-known Cordier diagram. A sophisticated CAE workflow is used to calculate the operational characteristics of 50 machine designs with 50 impeller geometry variations each. A Kriging-based surrogate model is trained to approximate the efficiency of any machine designs' best geometry design. The models are implemented into a machine design workflow. As a result, duty-specific Cordier lines are introduced. They are automatically generated for a set of machine design parameters. The efficiency of the designs along the duty-specific Cordier lines is approximated. Using optimization techniques, an optimal compressor design for the given duty on every specific Cordier line may be identified. This highly increases the amount of information available in the early design stages for radial turbocompressors.}, language = {en} } @article{LattnerGeller2023, author = {Lattner, Yannick and Geller, Marius}, title = {Radial Turbocompressor Chord Length Approximation for the Reynold's Number Calculation}, doi = {10.26205/opus-3335}, url = {https://nbn-resolving.org/urn:nbn:de:hbz:dm13-33351}, year = {2023}, abstract = {We present an approximation model for the chord length of radial turbocompressors. The model enables the calculation of a compressor's chord Reynold's number during the machine design process. The chord Reynold's number is shown to be the most accurate representation of the fluid dynamic properties inside the radial turbocompressor's impeller. It — however — requires the computation of the chord length, which is only available after defining the final impeller geometry. The method presenting in this paper only employs the compressors principal dimensions to approximate the chord length. The chord is modelled using a B{\´e}zier spline and quarter ellipse. This enables the earlier use of the chord Reynold's number during the machine design process of radial turbocompressors.}, language = {en} } @phdthesis{Werk2021, author = {Werk, Katharina}, title = {Risk-taking behavior as a hidden factor for sustainable business models' performance of European banks}, pages = {xxiv, 299}, year = {2021}, language = {en} } @article{Gr{\"a}ßerTeschSchmittetal.2021, author = {Gr{\"a}ßer, Felix and Tesch, Falko and Schmitt, Jochen and Abraham, Susanne and Malberg, Hagen and Zaunseder, Sebastian}, title = {A pharmaceutical therapy recommender system enabling shared decision-making}, series = {User Modeling and User-Adapted Interaction}, issn = {0924-1868}, year = {2021}, language = {en} } @article{BeharLiuKotzenetal.2020, author = {Behar, Joachim A. and Liu, Chengyu and Kotzen, Kevin and Tsutsui, Kenta and Corino, Valentina D. A. and Singh, Janmajay and Pimentel, Marco A. F. and Warrick, Philip and Zaunseder, Sebastian and Andreotti, Fernando}, title = {Remote health diagnosis and monitoring in the time of COVID-19}, series = {Physiological Measurement}, volume = {41 (2020)}, number = {10}, issn = {1361-6579}, year = {2020}, language = {en} } @article{GrahamClarkeWuetal.2021, author = {Graham, Sarah E. and Clarke, Shoa L. and Wu, Kuan-Han H. and Kanoni, Stavroula and Arendt, Marina}, title = {The power of genetic diversity in genome-wide association studies of lipids}, series = {Nature}, volume = {600 (2021)}, issn = {1476-4687}, pages = {675 -- 679}, year = {2021}, language = {en} } @article{WichertRabsteinStangetal.2020, author = {Wichert, Katharina and Rabstein, Sylvia and Stang, Andreas and Erbel, Raimund and Eisele, Lewin and Arendt, Marina and Dragano, Nico and Hoffmann, Wolfgang and Lerch, Markus M. and Roskoden, Frederick Charles and Schmidt, Carsten Oliver and V{\"o}lzke, Henry and J{\"o}ckel, Karl-Heinz and Br{\"u}ning, Thomas and Behrens, Thomas}, title = {Associations between shift work and risk of colorectal cancer in two German cohort studies}, series = {Chronobiology International : the journal of biological and medical rhythm research}, volume = {37 (2020)}, number = {8}, issn = {1525-6073}, pages = {1235 -- 1243}, year = {2020}, language = {en} } @article{KuhntBecker-EmdenSchadeetal.2021, author = {Kuhnt, Sonja and Becker-Emden, Eva-Christina and Schade, Tim and Eden, Wolfgang and Middendorf, Bernhard}, title = {Use of optimal mixture-process designs and response-surface models to study properties of calcium silicate units}, series = {Quality and Reliability Engineering International}, volume = {37 (2021)}, number = {2}, issn = {0748-8017}, pages = {391 -- 408}, year = {2021}, language = {en} } @incollection{TillmannBaumannBrinkhoffetal.2021, author = {Tillmann, W. and Baumann, I. and Brinkhoff, A. and Kuhnt, Sonja and Becker-Emden, Eva-Christina and Kalka, A.}, title = {Effect of the spray parameters on the particle behavior and the coating properties during ID warm spraying of fine WC-12Co powders (-10 + 2 μm)}, series = {Thermal Spray 2021 : proceedings from the international thermal spray conference}, publisher = {ASM}, address = {Kinsman Road, OH}, pages = {283 -- 289}, year = {2021}, language = {en} } @book{OPUS4-3268, title = {The history of graphic design}, editor = {M{\"u}ller, Jens and Wiedemann, Julius}, publisher = {Taschen}, address = {K{\"o}ln}, isbn = {978-3-8365-8806-5}, pages = {511}, year = {2022}, language = {en} }