@inproceedings{OlderogMohrBegingetal.2021, author = {Olderog, M. and Mohr, P. and Beging, Stefan and Tsoumpas, C. and Ziemons, Karl}, title = {Simulation study on the role of tissue-scattered events in improving sensitivity for a compact time of flight compton positron emission tomograph}, series = {2020 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC)}, booktitle = {2020 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC)}, publisher = {IEEE}, address = {New York, NY}, isbn = {978-1-7281-7693-2}, doi = {10.1109/NSS/MIC42677.2020.9507901}, pages = {4 Seiten}, year = {2021}, abstract = {In positron emission tomography improving time, energy and spatial detector resolutions and using Compton kinematics introduces the possibility to reconstruct a radioactivity distribution image from scatter coincidences, thereby enhancing image quality. The number of single scattered coincidences alone is in the same order of magnitude as true coincidences. In this work, a compact Compton camera module based on monolithic scintillation material is investigated as a detector ring module. The detector interactions are simulated with Monte Carlo package GATE. The scattering angle inside the tissue is derived from the energy of the scattered photon, which results in a set of possible scattering trajectories or broken line of response. The Compton kinematics collimation reduces the number of solutions. Additionally, the time of flight information helps localize the position of the annihilation. One of the questions of this investigation is related to how the energy, spatial and temporal resolutions help confine the possible annihilation volume. A comparison of currently technically feasible detector resolutions (under laboratory conditions) demonstrates the influence on this annihilation volume and shows that energy and coincidence time resolution have a significant impact. An enhancement of the latter from 400 ps to 100 ps leads to a smaller annihilation volume of around 50\%, while a change of the energy resolution in the absorber layer from 12\% to 4.5\% results in a reduction of 60\%. The inclusion of single tissue-scattered data has the potential to increase the sensitivity of a scanner by a factor of 2 to 3 times. The concept can be further optimized and extended for multiple scatter coincidences and subsequently validated by a reconstruction algorithm.}, language = {en} } @inproceedings{KreyerEsch2017, author = {Kreyer, J{\"o}rg and Esch, Thomas}, title = {Simulation Tool for Predictive Control Strategies for an ORCSystem in Heavy Duty Vehicles}, series = {European GT Conference 2017}, booktitle = {European GT Conference 2017}, pages = {16 Seiten}, year = {2017}, abstract = {Scientific questions - How can a non-stationary heat offering in the commercial vehicle be used to reduce fuel consumption? - Which potentials offer route and environmental information among with predicted speed and load trajectories to increase the efficiency of a ORC-System? Methods - Desktop bound holistic simulation model for a heavy duty truck incl. an ORC System - Prediction of massflows, temperatures and mixture quality (AFR) of exhaust gas}, language = {en} } @inproceedings{UlmerBraunChengetal.2020, author = {Ulmer, Jessica and Braun, Sebastian and Cheng, Chi-Tsun and Dowey, Steve and Wollert, J{\"o}rg}, title = {Simulation und Verifikation komplexer Handarbeitsprozesse durch die Kombination von Virtual Reality und Augmented Reality im Single-Piece-Workflow}, series = {Tagungsband: AALE 2020}, booktitle = {Tagungsband: AALE 2020}, isbn = {978-3-8007-5180-8}, pages = {4 Seiten}, year = {2020}, language = {de} } @inproceedings{ButenwegKleemannAltay2013, author = {Butenweg, Christoph and Kleemann, Anne and Altay, Okyay}, title = {Simulation von Impact Belastungen auf Stahlbetonstrukturen}, series = {13. D-A-CH Tagung f{\"u}r Erdbebeningenieurwesen und Baudynamik (D-A-CH 2013) : 29.-30. August 2013, Wien, {\"O}sterreich}, booktitle = {13. D-A-CH Tagung f{\"u}r Erdbebeningenieurwesen und Baudynamik (D-A-CH 2013) : 29.-30. August 2013, Wien, {\"O}sterreich}, organization = {D-A-CH Tagung f{\"u}r Erdbebeningenieurwesen und Baudynamik <13, 2013, Wien>}, pages = {1 -- 9}, year = {2013}, language = {de} } @inproceedings{AlexopoulosRauSattleretal.2011, author = {Alexopoulos, Spiros and Rau, Christoph and Sattler, Johannes Christoph and Kronhardt, Valentina and Hoffschmidt, Bernhard}, title = {Simulation von Solarturmkraftwerken mit offenem volumetrischen Receiver am Standort Italien}, series = {Forschung und Entwicklung f{\"u}r solarthermische Kraftwerke : 14. K{\"o}lner Sonnenkolloquium Mittwoch, 13. Juli 2011, im Auditorium des Campus J{\"u}lich der FH Aachen : Kurzfassungen der Vortr{\"a}ge und Poster}, booktitle = {Forschung und Entwicklung f{\"u}r solarthermische Kraftwerke : 14. K{\"o}lner Sonnenkolloquium Mittwoch, 13. Juli 2011, im Auditorium des Campus J{\"u}lich der FH Aachen : Kurzfassungen der Vortr{\"a}ge und Poster}, publisher = {DLR}, address = {K{\"o}ln}, pages = {4 S.}, year = {2011}, language = {de} } @inproceedings{FeuerriegelPookWerschetal.2012, author = {Feuerriegel, Uwe and Pook, Michael and Wersch, Gregor and Wittenhorst, Simon and Becker, J{\"u}rgen and Ecker, Markus and Hoffmann, Ulrich and Kunz, Ulrich}, title = {Simulation von W{\"a}rme{\"u}bertragungsprozessen}, year = {2012}, abstract = {Mit freundlicher Genehmigung der Autoren und des Oldenbourg Industrieverlags https://www.oldenbourg-industrieverlag.de/de/9783835633223-33223 erschienen als Beitrag im Tagungsband zur AALE-Tagung 2012. 9. Fachkonferenz 4.-5. Mai 2012, Aachen, Fachhochschule. ISBN 9783835633223 S 5-1 S. 127-135 Es werden Ergebnisse unterschiedlicher Projekte aus dem Bereich der Simulation von W{\"a}rme{\"u}bertragungsprozessen mit Excel-VBA vorgestellt. - Thermische Behandlung hochviskoser Fruchtzubereitungen, verschiedene Projekte und Kooperationen mit der Zentis GmbH \& Co. KG, Aachen (J. Becker, U. Feuerriegel, G. Wersch). - Untersuchung des dynamischen Verhaltens von dampfbeheizten Ethylen-Verdampfern. Projekt mit der TGE Gas Engineering GmbH, Bonn (M. Ecker, U. Feuerriegel, U. Hoffmann, S. Wittenhorst). - Dynamische Simulation des axialen Temperaturverlaufs von elektrisch beheizten Rohrreaktoren. Kooperation mit dem Institut f{\"u}r Chemische Verfahrenstechnik, TU Clausthal (U. Feuerriegel, U. Kunz, M. Pook, S. Wittenhorst).}, subject = {W{\"a}rme{\"u}bertragung}, language = {de} } @inproceedings{FeuerriegelWittenhorstHoffmannetal.2012, author = {Feuerriegel, Uwe and Wittenhorst, Simon and Hoffmann, Ulrich and Pook, Michael}, title = {Simulation von W{\"a}rme{\"u}bertragungsprozessen}, series = {Tagungsband zur AALE-Tagung 2012 : 9. Fachkonferenz}, booktitle = {Tagungsband zur AALE-Tagung 2012 : 9. Fachkonferenz}, publisher = {Oldenbourg Industrieverlag}, address = {M{\"u}nchen}, isbn = {978-3-8356-3305-6}, pages = {127 -- 136}, year = {2012}, language = {de} } @inproceedings{AchenbachBoschBreitbachetal.2013, author = {Achenbach, Timm and Bosch, Timo and Breitbach, Gerd and Sauerborn, Markus}, title = {Simulation zur Absorption und W{\"a}rme{\"u}bertragung an Solarturmabsorbern}, series = {77. Jahrestagung der DPG und DPG-Fr{\"u}hjahrstagung : 4.-8.3.2013}, booktitle = {77. Jahrestagung der DPG und DPG-Fr{\"u}hjahrstagung : 4.-8.3.2013}, organization = {Deutsche Physikalische Gesellschaft}, pages = {1 -- 14}, year = {2013}, language = {de} } @inproceedings{KuperjansTerpitzTerruhnetal.1999, author = {Kuperjans, Isabel and Terpitz, J. and Terruhn, H. and Wilhelm, H.-G.}, title = {Simulation zur Konzeption und Analyse betrieblicher und kommunaler Nahw{\"a}rmesysteme}, series = {Betriebliches Energiemanagement : Tagung Cottbus, 30. und 31. M{\"a}rz 1999. - (VDI-Berichte ; 1462)}, booktitle = {Betriebliches Energiemanagement : Tagung Cottbus, 30. und 31. M{\"a}rz 1999. - (VDI-Berichte ; 1462)}, publisher = {VDI-Verl.}, address = {D{\"u}sseldorf}, isbn = {3-18-091462-9}, pages = {195 -- 204}, year = {1999}, language = {de} } @inproceedings{KolditzAlbinFasseetal.2015, author = {Kolditz, Melanie and Albin, Thivaharan and Fasse, Alessandro and Br{\"u}ggemann, Gert-Peter and Abel, Dirk and Albracht, Kirsten}, title = {Simulative Analysis of Joint Loading During Leg Press Exercise for Control Applications}, series = {IFAC-PapersOnLine}, volume = {48}, booktitle = {IFAC-PapersOnLine}, number = {20}, doi = {10.1016/j.ifacol.2015.10.179}, pages = {435 -- 440}, year = {2015}, language = {en} }