@article{ReisgenSchleserMokrovetal.2011,
  author    = {Reisgen, Uwe and Schleser, Markus and Mokrov, Oleg and Zabirov, Alexander},
  title     = {Virtual welding equipment for simulation of GMAW processes with integration of power source regulation},
  series = {Frontiers of materials science},
  volume    = {Vol. 5},
  journal   = {Frontiers of materials science},
  number    = {Iss. 2},
  publisher = {Springer},
  address   = {Berlin},
  issn      = {2095-0268 (E-Journal); 2095-025X (Print)},
  pages     = {79 -- 89},
  year      = {2011},
  language  = {en}
}
@inproceedings{MertenConradKaemperetal.2006,
  author    = {Merten, Sabine and Conrad, Thorsten and K{\"a}mper, Klaus-Peter and Picard, Antoni and Sch{\"u}tze, Andreas},
  title     = {Virtual Technology Labs - an efficient tool for the preparation of hands-on-MEMS-courses in training foundries},
  year      = {2006},
  abstract  = {Hands-on-training in high technology areas is usually limited due to the high cost for lab infrastructure and equipment. One specific example is the field of MEMS, where investment and upkeep of clean rooms with microtechnology equipment is either financed by production or R\&D projects greatly reducing the availability for education purposes. For efficient hands-on-courses a MEMS training foundry, currently used jointly by six higher education institutions, was established at FH Kaiserslautern. In a typical one week course, students manufacture a micromachined pressure sensor including all lithography, thin film and packaging steps. This compact and yet complete program is only possible because participants learn to use the different complex machines in advance via a Virtual Training Lab (VTL). In this paper we present the concept of the MEMS training foundry and the VTL preparation together with results from a scientific evaluation of the VTL over the last three years.},
  subject      = {Virtuelles Laboratorium},
  language  = {en}
}
@article{Starke2001,
  author    = {Starke, G{\"u}nther},
  title     = {Virtual Reality und Simulation als integrierte Werkzeuge f{\"u}r die Entwicklung mechatronischer Systeme},
  series = {VDI-Berichte. 1631 (2001)},
  journal   = {VDI-Berichte. 1631 (2001)},
  isbn      = {0083-5560},
  pages     = {1 -- 17},
  year      = {2001},
  language  = {de}
}
@article{Gebhardt2002,
  author    = {Gebhardt, Andreas},
  title     = {Virtual Reality oder Rapid Prototyping?},
  series = {Zeitschrift f{\"u}r die gesamte Wertsch{\"o}pfungskette Automobilwirtschaft (2002)},
  journal   = {Zeitschrift f{\"u}r die gesamte Wertsch{\"o}pfungskette Automobilwirtschaft (2002)},
  year      = {2002},
  language  = {de}
}
@article{BartellaKamalScholletal.2019,
  author    = {Bartella, Alexander K. and Kamal, Mohammad and Scholl, Ingrid and Schiffer, Stefan and Steegmann, Julius and Ketelsen, Dominik and H{\"o}lzle, Frank W. and Lethaus, Bernd},
  title     = {Virtual reality in preoperative imaging in maxillofacial surgery: implementation of "the next level"?},
  series = {British Journal of Oral and Maxillofacial Surgery},
  volume    = {57},
  journal   = {British Journal of Oral and Maxillofacial Surgery},
  number    = {7},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0266-4356},
  doi       = {10.1016/j.bjoms.2019.02.014},
  pages     = {644 -- 648},
  year      = {2019},
  language  = {en}
}
@article{UllrichGrottkeRossaintetal.2010,
  author    = {Ullrich, Sebastian and Grottke, Oliver and Rossaint, Rolf and Staat, Manfred and Deserno, Thomas M. and Kuhlen, Torsten},
  title     = {Virtual Needle Simulation with Haptics for Regional Anaesthesia},
  pages     = {1 -- 3},
  year      = {2010},
  language  = {en}
}
@article{BhattaraiHorbachStaatetal.2022,
  author    = {Bhattarai, Aroj and Horbach, Andreas and Staat, Manfred and Kowalczyk, Wojciech and Tran, Thanh Ngoc},
  title     = {Virgin passive colon biomechanics and a literature review of active contraction constitutive models},
  series = {Biomechanics},
  volume    = {2},
  journal   = {Biomechanics},
  number    = {2},
  publisher = {MDPI},
  address   = {Basel},
  issn      = {2673-7078},
  doi       = {10.3390/biomechanics2020013},
  pages     = {138 -- 157},
  year      = {2022},
  abstract  = {The objective of this paper is to present our findings on the biomechanical aspects of the virgin passive anisotropic hyperelasticity of the porcine colon based on equibiaxial tensile experiments. Firstly, the characterization of the intestine tissues is discussed for a nearly incompressible hyperelastic fiber-reinforced Holzapfel-Gasser-Ogden constitutive model in virgin passive loading conditions. The stability of the evaluated material parameters is checked for the polyconvexity of the adopted strain energy function using positive eigenvalue constraints of the Hessian matrix with MATLAB. The constitutive material description of the intestine with two collagen fibers in the submucosal and muscular layer each has been implemented in the FORTRAN platform of the commercial finite element software LS-DYNA, and two equibiaxial tensile simulations are presented to validate the results with the optical strain images obtained from the experiments. Furthermore, this paper also reviews the existing models of the active smooth muscle cells, but these models have not been computationally studied here. The review part shows that the constitutive models originally developed for the active contraction of skeletal muscle based on Hill's three-element model, Murphy's four-state cross-bridge chemical kinetic model and Huxley's sliding-filament hypothesis, which are mainly used for arteries, are appropriate for numerical contraction numerical analysis of the large intestine.},
  language  = {en}
}
@techreport{DigelKayser2017,
  author    = {Digel, Ilya and Kayser, Peter},
  title     = {VirEx - Eliminierung von Quarant{\"a}ne relevanten Viroiden aus Kulturpflanzen Abschlussbericht des Projektes KMU-innovativ-12: Teilprojekt 3},
  publisher = {Institut f{\"u}r Bioengineering (IfB) der FH Aachen},
  address   = {Aachen},
  doi       = {10.2314/GBV:1012136345},
  year      = {2017},
  language  = {de}
}
@inproceedings{BaaderReiswichBartschetal.2018,
  author    = {Baader, Fabian and Reiswich, M. and Bartsch, M. and Keller, D. and Tiede, E. and Keck, G. and Demircian, A. and Friedrich, M. and Dachwald, Bernd and Sch{\"u}ller, K. and Lehmann, R. and Chojetzki, R. and Durand, C. and Rapp, L. and Kowalski, Julia and F{\"o}rstner, R.},
  title     = {VIPER - Student research on extraterrestrical ice penetration technology},
  series = {Proceedings of the 2nd Symposium on Space Educational Activities},
  booktitle = {Proceedings of the 2nd Symposium on Space Educational Activities},
  pages     = {1 -- 6},
  year      = {2018},
  abstract  = {Recent analysis of scientific data from Cassini and earth-based observations gave evidence for a global ocean under a surrounding solid ice shell on Saturn's moon Enceladus. Images of Enceladus' South Pole showed several fissures in the ice shell with plumes constantly exhausting frozen water particles, building up the E-Ring, one of the outer rings of Saturn. In this southern region of Enceladus, the ice shell is considered to be as thin as 2 km, about an order of magnitude thinner than on the rest of the moon. Under the ice shell, there is a global ocean consisting of liquid water. Scientists are discussing different approaches the possibilities of taking samples of water, i.e. by melting through the ice using a melting probe. FH Aachen UAS developed a prototype of maneuverable melting probe which can navigate through the ice that has already been tested successfully in a terrestrial environment. This means no atmosphere and or ambient pressure, low ice temperatures of around 100 to 150K (near the South Pole) and a very low gravity of 0,114 m/s^2 or 1100 μg. Two of these influencing measures are about to be investigated at FH Aachen UAS in 2017, low ice temperature and low ambient pressure below the triple point of water. Low gravity cannot be easily simulated inside a large experiment chamber, though. Numerical simulations of the melting process at RWTH Aachen however are showing a gravity dependence of melting behavior. Considering this aspect, VIPER provides a link between large-scale experimental simulations at FH Aachen UAS and numerical simulations at RWTH Aachen. To analyze the melting process, about 90 seconds of experiment time in reduced gravity and low ambient pressure is provided by the REXUS rocket. In this time frame, the melting speed and contact force between ice and probes are measured, as well as heating power and a two-dimensional array of ice temperatures. Additionally, visual and infrared cameras are used to observe the melting process.},
  language  = {en}
}
@article{Wollert2002,
  author    = {Wollert, J{\"o}rg},
  title     = {Vierzig Jahre Software-Desaster : zehn Regeln als R{\"u}stzeug, um die Herausforderung Software-Entwicklung zu meistern},
  series = {Elektronik : Fachmedium f{\"u}r industrielle Anwender und Entwickler},
  volume    = {Bd. 51},
  journal   = {Elektronik : Fachmedium f{\"u}r industrielle Anwender und Entwickler},
  number    = {H. 25},
  issn      = {0013-5658},
  pages     = {110 -- 115},
  year      = {2002},
  language  = {de}
}