TY - CHAP A1 - Gömmel, A. A1 - Butenweg, Christoph A1 - Kob, M. T1 - A fluid-structure interaction model of vocal fold oscillation T2 - 5th International Workshop on Models and Analysis of Vocal Emissions for Biomedical Applications, MAVEBA 2007 N2 - Since fluid-structure interaction within the finite-element method is state of the art in many engineering fields, this method is used in voice analysis. A quasi two-dimensional model of the vocal folds including the ventricular folds is presented. First results of self-sustained vocal fold oscillation are presented and possibilities as well as limitations are discussed. KW - finite element method KW - fluid structure interaction KW - vocal fold oscillation Y1 - 2007 SN - 978-888453674-7 N1 - 5th International Workshop on Models and Analysis of Vocal Emissions for Biomedical Applications, MAVEBA 2007; Florence; Italy; 13 December 2007 through 15 December 2007 SP - 127 EP - 128 ER - TY - JOUR A1 - Fleischhaker, Robert A1 - Evers, Jörg T1 - A Maxwell–Schrödinger solver for quantum optical few-level systems JF - Computer Physics Communications N2 - The msprop program presented in this work is capable of solving the Maxwell–Schrödinger equations for one or several laser fields propagating through a medium of quantum optical few-level systems in one spatial dimension and in time. In particular, it allows to numerically treat systems in which a laser field interacts with the medium with both its electric and magnetic component at the same time. The internal dynamics of the few-level system is modeled by a quantum optical master equation which includes coherent processes due to optical transitions driven by the laser fields as well as incoherent processes due to decay and dephasing. The propagation dynamics of the laser fields is treated in slowly varying envelope approximation resulting in a first order wave equation for each laser field envelope function. The program employs an Adams predictor formula second order in time to integrate the quantum optical master equation and a Lax–Wendroff scheme second order in space and time to evolve the wave equations for the fields. The source function in the Lax–Wendroff scheme is specifically adapted to allow taking into account the simultaneous coupling of a laser field to the polarization and the magnetization of the medium. To reduce execution time, a customized data structure is implemented and explained. In three examples the features of the program are demonstrated and the treatment of a system with a phase-dependent cross coupling of the electric and magnetic field component of a laser field is shown. Y1 - 2011 U6 - http://dx.doi.org/10.1016/j.cpc.2010.10.018 SN - 0010-4655 VL - 182 IS - 3 SP - 739 EP - 747 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Hoyler, Friedrich A1 - Andrejtscheff, W. A1 - Petkov, P. T1 - A mixed symmetry or quasineutron pair interpretation of the Kpi =03+ level in 172Yb / W. Andrejtscheff ; P. Petkov ... F. Hoyler JF - Journal of physics / G. 12 (1986), H. 6 Y1 - 1986 SN - 0305-4616 SP - L151 EP - L156 ER - TY - CHAP A1 - Meskouris, Konstantin A1 - Holler, Stefan A1 - Butenweg, Christoph A1 - Meiners, Daniel T1 - A multiphase model with hypoplastic formulation of the solid phase and its application to earthquake engineering problems T2 - Computational structural dynamics and earthquake engineering / ed. by Manolis Papadrakakis .... (Structures and infrastructures series ; 2) Y1 - 2009 SN - 978-0-415-45261-8 U6 - http://dx.doi.org/10.1201/9780203881637.ch19 SP - 293 EP - 308 PB - CRC Press CY - Boca Raton, Fla. [u.a.] ER - TY - JOUR A1 - Gömmel, Andreas A1 - Butenweg, Christoph A1 - Bolender, Katrin A1 - Grunendahl, Arno T1 - A muscle controlled finite-element model of laryngeal abduction and adduction JF - Computer methods in biomechanics and biomedical engineering Y1 - 2007 SN - 1476-8259 (E-Journal); 1025-5842 (Print) VL - Volume 10 IS - Issue 5 SP - 377 EP - 388 ER - TY - JOUR A1 - Hoffschmidt, Bernhard A1 - Pitz-Paal, Robert A1 - Böhmer, M. T1 - A new closed/open volumetric receiver concept for parabolictrough collectors (test results) JF - Journal de physique. 9 (1999), H. 3 Y1 - 1999 SN - 1155-4339 SP - 3 ER - TY - JOUR A1 - Kürten, Sylvia A1 - Mottaghy, Darius A1 - Ziegler, Martin T1 - A new model for the description of the heat transfer for plane thermo-active geotechnical systems based on thermal resistances JF - Acta Geotechnica Y1 - 2015 U6 - http://dx.doi.org/10.1007/s11440-014-0311-6 SN - 1861-1133 VL - 10 IS - 2 SP - 219 EP - 229 PB - Springer CY - Berlin ER - TY - JOUR A1 - Schwarzer, Klemens A1 - da Silva, Vieira E. A1 - Hoffschmidt, Bernhard A1 - Schwarzer, T. T1 - A new solar desalination system with heat recovery for decentralised drinking water production JF - Desalination. 248 (2009), H. 1-3 Y1 - 2009 SN - 0011-9164 N1 - Water and Sanitation in International Development and Disaster Relief (WSIDDR) International Workshop Edinburgh, Scotland, UK, 28–30 May 2008 SP - 204 EP - 211 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Chen, Tao A1 - Clauser, Christoph A1 - Marquart, Gabriele A1 - Willbrand, Karen A1 - Mottaghy, Darius T1 - A new upscaling method for fractured porous media JF - Advances in Water Resources Y1 - 2015 U6 - http://dx.doi.org/10.1016/j.advwatres.2015.03.009 SN - 0309-1708 N1 - Corrigendum 2019: https://doi.org/10.1016/j.advwatres.2019.01.004 VL - 80 SP - 60 EP - 68 PB - Elsevier CY - Amsterdam ER - TY - GEN A1 - Butenweg, Christoph A1 - Gellert, Christoph A1 - Reindl, Lukas A1 - Meskouris, Konstantin T1 - A nonlinear method for the seismic safety verification of masonry buildings N2 - In order for traditional masonry to stay a competitive building material in seismically active regions there is an urgent demand for modern, deformation-based verification procedures which exploit the nonlinear load bearing reserves. The Capacity Spectrum Method (CSM) is a widely accepted design approach in the field of reinforced concrete and steel construction. It compares the seismic action with the load-bearing capacity of the building considering nonlinear material behavior with its post-peak capacity. The bearing capacity of the building is calculated iteratively using single wall capacity curves. This paper presents a new approach for the bilinear approximation of single wall capacity curves in the style of EC6/EC8 respectively FEMA 306/FEMA 356 based on recent shear wall test results of the European Collective-Research Project “ESECMaSE”. The application of the CSM to masonry structures by using bilinear approximations of capacity curves as input is demonstrated on the example of a typical German residential home. Y1 - 2009 N1 - COMPDYN 2009 - 2nd International Conference on Computational Methods in Structural Dynamics & Earthquake Engineering. Isles of Rhodes, Greece, June 22-24,2009. PB - National Technical University of Athens CY - Athen ER -