Dokumente Fakultät für Physik (inkl. GAUSS) nach Titel
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Radial velocities in low mass stars: improving the wavelength solution of astronomical spectrographs and understanding stellar noise
(2017-11-10)The radial velocity method has been used to discover hundreds of extrasolar planets in the past two decades. The continuous improvements in radial velocity precision have revealed several rocky planets in the habitable ... -
Radiation Hard 3D Diamond Sensors for Vertex Detectors at HL-LHC
(2016-02-12)Diamond is a good candidate to replace silicon as sensor material in the innermost layer of a tracking detector at HL-LHC, due to its high radiation tolerance. After particle fluences of $10^{16}\,{\rm protons/cm^2}$, ... -
Radiation length measurements with high-resolution telescopes
(2019-08-27)The radiation length imaging method presented in this work can be used to conduct spatially resolved measurements of scattering angles of particles traversing a object under study. For the measurements a planar object is ... -
Radiative Corrections in Curved Spacetime and Physical Implications to the Power Spectrum and Trispectrum for different Inflationary Models
(2018-06-26)In a quantum field theory with a time-dependent background, as in an expanding universe, the time-translational symmetry is broken. We therefore expect loop corrections to cosmological observables to be time-dependent after ... -
Random Block Copolymer Melts in the Bulk and at Selective Substrates
(2011-12-15)Random block copolymers are polymers that consist of two different, randomly as- sembled types of blocks. Each of these blocks comprises one type of monomer and a repulsion between these ... -
Random Focusing of Tsunami Waves
(2015-11-09)Branched flow is a universal phenomenon of random focusing that occurs in wave or particle flows that propagate in weakly scattering, correlated random media. The consecutive effect of small random forces leads to regions ... -
Rapid Determination of High-Resolution Protein Structures by Solution and Solid-state NMR Spectroscopy
(2008-04-08)NMR spectroscopy provides high-resolution structural information of biomolecules in near-physiological conditions. Structural studies of proteins and nucleic acids are critical for understanding biological processes at ... -
Rapid Determination of Protein Structures in Solution Using NMR Dipolar Couplings
(2005-04-06)Once NMR spectra are measured, two main steps follow to determine NMR structure. One is backbone resonance assignment and the other is structure calculation. The both are time consuming ... -
Raster-Thermospannungs-Mikroskopie der Interferenz von Elektronenwellen auf der Au(111)-Oberfläche
(2002-02-18)The interference pattern of scattered electron waves is studied for the 2D-electron gas of the Au(111)-surface. For this purpose, the local thermovoltage across the tunneling junction of ... -
Ratiometric fluorescence imaging and marker-free motion tracking of Langendorff perfused beating rabbit hearts
(2021-01-06)Optical mapping is a fluorescence based imaging technique used extensively in cardiac research to study the electrophysiological properties of isolated hearts kept at physiological conditions. The major limitation of ... -
Rauhigkeit und Durchmischung der Grenzflächen in laserdeponierten Cu-Ag- und Fe-Ag-Schichtsystemen
(2002-11-21)Due to the high kinetic energy of the ions that are produced during pulsed laser deposition, thin films prepared by this method show a number of marked differences when compared to films ... -
Raumzeitliche Dynamik optisch angeregter Elektron-Loch-Plasmen in Galliumarsenid
(2001-05-04)Applying pump and probe differential reflection and transmission of femtosecond light pulses for either co- or counterpropagating pump and probe geometries, a direct time of flight method ... -
Real-time Magnetic Resonance Imaging
(2010-01-26)In this PhD thesis a generic solution for real-time MRI was developed based on a comprehensive analysis of the physical requirements. The method combines the fast low angle shot (FLASH) acquisition principle with a radial ... -
Real-time MRI and Model-based Reconstruction Techniques for Parameter Mapping of Spin-lattice Relaxation
(2017-09-05)Magnetic resonance imaging (MRI) is a non-invasive technique widely used for imaging of humans and animals. It came into existence based on several fundamental inventions made in the 1970s. Since then, MRI has evolved into ... -
Realistic MHD simulations of spots on cool main-sequence stars
(2021-08-09)Sunspots are cool, dark features on the solar surface consisting of two distinct parts - the inner dark umbra and its surrounding brighter, filamentary penumbra. Strong, nearly vertical magnetic fields found in the umbra ... -
Refining the chemical and kinetic decoupling description of thermally produced dark matter
(2019-03-26)The first part of this thesis deals with refined theoretical predictions of the thermal relic abundance for weakly interacting massive particles (WIMPs). Methods are developed in a model independent way to describe the ... -
Reibung kristalliner, amorpher und stark korrelierter Systeme unter aktiver Kontrolle
(2018-08-09)Mechanical and kinetic energy is transferred into heat if to two bodies slide on each other. This energy dissipative process is usually called friction. This thesis contributes to the understanding of friction. This is ... -
Relaxationen in komplexen Fluiden
(2010-12-20)Relaxation processes of complex fluids show a significant aspect for understanding of metallic glasses as well as polymers. Therefore, the interpretation of the macroscopic features due to ... -
Renormalization-Group Theory for Quantum Dissipative Systems in Nonequilibrium
(2002-03-21)We apply the recently developed real-time renormalization-group (RTRG) method to different quantum dissipative systems. In contrast to other renormalization-group techniques the RTRG approach ... -
Resource Bounded Agency in Public goods Games
(2023-07-28)The new and emerging field of sociophysics aims to explain and understand collective behavior demonstrated by humans in a variety of domains. This usually requires to make some assumptions about the microscopic inter-human ...