University of Stuttgart

About: University of Stuttgart is a education organization based out in Stuttgart, Germany. It is known for research contribution in the topics: Laser & Finite element method. The organization has 27715 authors who have published 56370 publications receiving 1363382 citations. The organization is also known as: Universität Stuttgart.

High-quality pre-integrated volume rendering using hardware-accelerated pixel shading

Abstract: We introduce a novel texture-based volume rendering approach that achieves the image quality of the best post-shading approaches with far less slices. It is suitable for new flexible consumer graphics hardware and provides high image quality even for low-resolution volume data and non-linear transfer functions with high frequencies, without the performance overhead caused by rendering additional interpolated slices. This is especially useful for volumetric effects in computer games and professional scientific volume visualization, which heavily depend on memory bandwidth and rasterization power.We present an implementation of the algorithm on current programmable consumer graphics hardware using multi-textures with advanced texture fetch and pixel shading operations. We implemented direct volume rendering, volume shading, arbitrary number of isosurfaces, and mixed mode rendering. The performance does neither depend on the number of isosurfaces nor the definition of the transfer functions, and is therefore suited for interactive high-quality volume graphics.

Beyond Traditional Cross Couplings: The Scope of the Cross Dehydrogenative Coupling Reaction

Abstract: The development of new and environmentally compatible methods for the synthesis of CC and Cheteroatom bonds is of great significance to researchers. The cross dehydrogenative coupling (CDC) is emerging as an important tool for chemists with a variety of, often inexpensive, metal catalysts able to perform these reactions both regio- and enantioselectively. Perhaps more importantly CDC methodology has been shown to be extremely environmentally friendly and facile being able to be carried out in aqueous environments under an atmosphere of air. This Focus Review intends to give an overview of the most contemporary developments in this exciting and emerging area of cross-coupling chemistry.

Single-Shot Readout of a Single Nuclear Spin

Abstract: Projective measurement of single electron and nuclear spins has evolved from a gedanken experiment to a problem relevant for applications in atomic-scale technologies like quantum computing Although several approaches allow for detection of a spin of single atoms and molecules, multiple repetitions of the experiment that are usually required for achieving a detectable signal obscure the intrinsic quantum nature of the spin's behavior We demonstrated single-shot, projective measurement of a single nuclear spin in diamond using a quantum nondemolition measurement scheme, which allows real-time observation of an individual nuclear spin's state in a room-temperature solid Such an ideal measurement is crucial for realization of, for example, quantum error correction protocols in a quantum register

UTCI-Fiala multi-node model of human heat transfer and temperature regulation.

Abstract: The UTCI-Fiala mathematical model of human temperature regulation forms the basis of the new Universal Thermal Climate Index (UTC). Following extensive validation tests, adaptations and extensions, such as the inclusion of an adaptive clothing model, the model was used to predict human temperature and regulatory responses for combinations of the prevailing outdoor climate conditions. This paper provides an overview of the underlying algorithms and methods that constitute the multi-node dynamic UTCI-Fiala model of human thermal physiology and comfort. Treated topics include modelling heat and mass transfer within the body, numerical techniques, modelling environmental heat exchanges, thermoregulatory reactions of the central nervous system, and perceptual responses. Other contributions of this special issue describe the validation of the UTCI-Fiala model against measured data and the development of the adaptive clothing model for outdoor climates.