Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 19 of 19 for “"Virtuelle Realität"”.
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Aufbau eines medizinischen Virtual Reality-Labors und Entwicklung eines VR-gestützten neuropsychologischen Testsystems mit einer präklinischen und klinischen Evaluationsstudie
Hintergrund: Virtuelle Realität (VR) bietet in Medizin und Neurowissenschaften vielversprechende Anwendungsmöglichkeiten, so könnten z.B. zukünftig in der neuropsychologischen Testung Paper- und Pencil-Tests durch validere VR-Verfahren abgelöst werden. Hindernisse für eine Verbreitung in der …
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Low latency technology for interactive virtual environments
… of appealing multi-modal environments. The “Virtueller Kopfhörer” (VirKopf) system is a representative of a demanding multi-modal environment that was developed as a joint research project between the Institute of Technical Acoustics and the VR Group at the Department of Computer Science at …
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Virtual humanoids and presence in virtual environments
The broad range of methods for virtual humanoids and their evaluation as avatars in virtual environments is handled in this thesis. The enabling methods, as well as experimental evaluations are the main contributions of the thesis. The central conclusion of the work can be summed up as the fact …
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Landschaft 1.0
The author examines the role of landscape in the so-called "digital age", verifies the suitability of that which we collectively term landscape for the computer-generated worlds of the digital age, and follows the theory behind the path of landscape into the digital codes of computer technology. …
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Navigation in time-varying scientific data
The temporal resolution of today's simulated scientific data sets is constantly growing. Simulations spanning thousands of discrete time steps are common these days; simulations with a much higher resolution exist. The growing amount of discrete time steps leads to significant problems, …
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Physically based real-time auralization of interactive virtual environments
Over the last decades, Virtual Reality (VR) technology has emerged to be a powerful tool for a wide variety of applications covering conventional use, e.g., in science, design, medicine and engineering, as well as in more visionary applications such as the creation of virtual spaces that aim to act …
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Binaural technology for virtual reality
The generation and use of non-intrusive artificial virtual environments is gaining more and more importance. Virtual environments are used in a variety of fields such as product design or evaluation of prototypes. Moreover they turned out to be very effective for the visualization of complex data …
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Interactive cutting of finite elements based deformable objects in virtual environments
There is a wide range of virtual reality (VR) applications that benefit from physically based modeling, such as assembly simulation, robotics, training and teaching (e.g., medical, military, sports) and entertainment. The dynamics of rigid bodies is well understood and several open source as well …
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Der Einsatz von virtual reality in der touristischen Online-Kommunikation aus informationsökonomischer Perspektive
There has, since the nineteen nineties, been a rapid increase in the use of the internet for marketing and selling tourist products, and internet-based tourism is now governed by keen competition between the providers/suppliers in the tourist trade. This creates a greater need for appropriate …
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Modularer Ansatz zur Simulation verfahrensübergreifender fertigungstechnischer Prozessketten
Several modern trends in product development have resulted in the material properties of a part having a greater influence than ever before on the entire life cycle of a product. The ongoing trend towards lightweight structures in the automobile industry, for example, is leading to a steady …
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Efficient indexing and view dependent ranking in CFD databases
Methods numerically simulating the interaction of gases or fluids with complex surfaces (computational fluid dynamics, CFD) are able to perform calculations with increasing levels of detail due to the ongoing development of more powerful computers. CFD simulations are utilized during the design of …
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Methoden des parallelen Postprocessing numerischer Strömungssimulationsdaten für die echtzeitfähige Visualisierung und Interaktion in VR-basierten Arbeitsumgebungen
Because of the steadily increasing performance of supercomputers, computational fluid dynamics (CFD) simulations are capable of producing constantly growing amounts of raw data. These data sets are essentially useless without subsequent post-processing. One particularly attractive evaluation …
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Dreidimensionale Simulation und Visualisierung von Strömungs- und Mischprozessen im Doppelschneckenextruder
The mixing behaviour of new material systems (PES/glass- and PP/metal-blends) is studied in dependence of the process parameters screw-speed, material type and non-polymer rate in the present dissertation. The glass and the metal are low melting materials and they are processed in a fluid state. …
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Experimentalpsychologische Untersuchungen zu Navigationsstrategien unter Berücksichtigung endokrinologischer und physiologischer Variablen
… wie Sexualhormonen. Es wurden dazu in einem virtuellen Labyrinth zwei Navigationsstrategien erfasst, die hier externale und internale Strategie genannt wurden. Diese werden oft vereinfachend als - auf räumliche Referenzsysteme Bezug nehmend - allozentrische und egozentrische oder einfach als …
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Interactive particle tracing for the exploration of flow fields in virtual environments
Due to rising data sizes and growing complexity, the results of modern numerical simulations are increasingly difficult to understand. Thus, scientific visualization is vital for an in-depth comprehension of computational fluid dynamics data. Especially the use of Virtual Reality methodology for an …
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Visuell-räumliche Navigationsleistungen und parietales Cortexvolumen bei schizophrenen Patienten im Paradigma der "Virtuellen Realität"
… "parietalen" Hirnfunktionen mit Hilfe einer virtuellen Navigationsaufgabe zu erfassen sowie eine diesbezügliche Involvierung parietaler Cortexareale zu bestätigen. Zur Erfassung der ego- und allozentrische Navigationsleistung durchliefen Patienten sowie Kontrollpersonen mit dem "virtuellen …