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Keine peer reviewed Publikation (Wissenschaftlicher Artikel und Aufsatz, Proceeding, Artikel in Tagungsband)

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Interdisziplinäre Bestandserfassung und Bewertung einer denkmalgeschützten Bogenbrücke aus Naturstein mit Instandsetzungs- und Ertüchtigungskonzept (2014)
Bewer, Andreas ; Patitz, Gabriele ; Schuster, Ralf ; Wendler, Eberhard ; Stürmer, Sylvia
A Virtual-Reality 3d-Laser-Scan Simulation (2015)
Danhof, Malvin ; Schneider, Tarek ; Laube, Pascal ; Umlauf, Georg
We present a 3d-laser-scan simulation in virtual reality for creating synthetic scans of CAD models. Consisting of the virtual reality head-mounted display Oculus Rift and the motion controller Razer Hydra our system can be used like common hand-held 3d laser scanners. It supports scanning of triangular meshes as well as b-spline tensor product surfaces based on high performance ray-casting algorithms. While point clouds of known scanning simulations are missing the man-made structure, our approach overcomes this problem by imitating real scanning scenarios. Calculation speed, interactivity and the resulting realistic point clouds are the benefits of this system.
Heart Rate Variability Indicating Stress Visualized by Correlations Plots (2015)
Scherz, Wilhelm Daniel ; Ortega, Juan Antonio ; Martínez Madrid, Natividad ; Seepold, Ralf
Stress is recognized as a factor of predominant disease and in the future the costs for treatment will increase. The presented approach tries to detect stress in a very basic and easy to implement way, so that the cost for the device and effort to wear it remain low. The user should benefit from the fact that the system offers an easy interface reporting the status of his body in real time. In parallel, the system provides interfaces to pass the obtained data forward for further processing and (professional) analyses, in case the user agrees. The system is designed to be used in every day’s activities and it is not restricted to laboratory use or environments. The implementation of the enhanced prototype shows that the detection of stress and the reporting can be managed using correlation plots and automatic pattern recognition even on a very light-weighted microcontroller platform.
Probabilistic Collision Avoidance for Vessels (2015)
Blaich, Michael ; Köhler, Steffen ; Reuter, Johannes ; Hahn, Axel
The improvement of collision avoidance for vessels in close range encounter situations is an important topic for maritime traffic safety. Typical approaches generate evasive trajectories or optimise the trajectories of all involved vessels. Such a collision avoidance system has to produce evasive manoeuvres that do not confuse other navigators. To achieve this behaviour, a probabilistic obstacle handling based on information from a radar sensor with target tracking, that considers measurement and tracking uncertainties is proposed. A grid based path search algorithm, that takes the information from the probabilistic obstacle handling into account, is then used to generate evasive trajectories. The proposed algorithms have been tested and verified in a simulated environment for inland waters.
"Die Wahrheit liegt auf dem Platz" (Otto Rehagel) - Gebildete Räume zum täglichen Gebrauch (2015)
Günther, Katrin
Mit Injektionen Risse heilen (2015)
Stürmer, Sylvia
Um Mauerwerksrisse mit einer Injektion erfolgreich zu schließen, sind bei der praktischen Durchführung des Injektionsverfahrens eine Reihe von Details zu beachten: Sie betreffen das Bohren und Setzen der Packer, das Mischen und Einbringen des Füllstoffs, das Schließen der Öffnungen und Fertigstellen der Sichtmauerwerksoberflächen sowie die Dokumentation und Kontrolle des Injektionserfolgs.
Die Quadratur der Risse (2015)
Stürmer, Sylvia
Putzfassaden sollen rissfrei sein und bleiben – gleichzeitig werden die hierfür notwendigen Voraussetzungen immer öfter ignoriert sowie an Material und Ausführung mehr und mehr Ansprüche gestellt.
Matrix methods for the Bernstein form and their application in global optimization (2015)
Titi, Jihad ; Garloff, Jürgen
Investigating the effectiveness of tactical business coaching for technology-based ventures in increasing survival (2015)
Baltes, Guido H. ; Ungerer, Christina
Influence of human induced floor vibrations on the measurement precision of force plates in a biomechanics laboratory (2015)
Werkle, Horst ; Francke, Wolfgang ; Firus, Andrei
In biomechanics laboratories the ground reaction force time histories of the foot-fall of persons are usually measured using a force plate. The accelerations of the floor, in which the force plate is embedded, have to be limited, as they may influence the accuracy of the force measurements. For the numerical simulation of vibrations induced by humans in biomechanical laboratories, loading scenarios are defined. They include continuous motions of persons (walking, running) as well as jumps, typical for biomechanical investigations on athletes. The modeling of floors has to take into account the influence of floor screed in case of portable force plates. Criteria for the assessment of the measuring error provoked by floor vibrations are given. As an example a floor designed to accommodate a force platform in a biomechanical laboratory of the University Hospital in Tübingen, Germany, has been investi-gated for footfall induced vibrations. The numerical simulation by a finite element analysis has been validated by field measurements. As a result, the measuring error of the force plate installed in the laboratory is obtained for diverse scenarios.
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