Browsing Naturwissenschaften, Mathematik und Informatik by Title
Now showing items 1990-2009 of 5496
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Galaxy Formation With Ultralight Bosonic Dark Matter
(2020-05-18)Ultralight bosonic particles forming a coherent state are dark matter candidates with distinctive wave-like behaviour on the scale of dwarf galaxies and below. In this thesis, a new simulation technique for ultralight ... -
GaN:Gd - Ein verdünnter magnetischer Halbleiter?
(2011-03-09)In this thesis the magnetic properties of GaN:Gd layers grown by molecular beam epitaxy (MBE) are adressed. Structural analysis confirmes the substitutional incorporation of Gd on a Ga site ... -
Ein Gebietszerlegungsverfahren für parabolische Probleme im Zusammenhang mit Finite-Volumen-Diskretisierung
(2007-12-03)The first part of the thesis at hand deals with a finite volume method for time-dependent advection-diffusion-reaction equations. By using dual control volumes based on a common ... -
Gefügeabhängigkeit technischer Gesteinseigenschaften
(2003-12-19)By virtue of their usually complex geological past, natural stones represent a heterogeneous and anisotropic material. Their use demands good knowledge of their technical properties. In ... -
Gefügebildung und Verdichtungsvorgänge bei weichmagnetischen Ferriten
(2006-07-13)Microstructural tailoring is used to modify the electromagnetic properties of softmagnetic MnZn and NiZn ferrites, which are broadly used in all types of electronics.High permeability MnZn ... -
Gefügekontrollierte Verwitterung natürlicher und konservierter Marmore
(2003-08-12)The present work deals with fabric controlled weathering processes of natural and consolidated marbles. The research bases on the comparison of rock properties in five different conditions: ... -
Gene expression pattern and functional analysis of CD8+ T cells from individuals with or without anti HIV/SIV noncytolytic activity.
(2012-07-19)CD8+ T cell mediated antiviral response (CNAR) is associated with long-term control of HIV-infection and attributed to the secretion of an unknown factor called soluble CD8+ cell antiviral factor (CAF). In order to identify ... -
Gene flow from planted common ash (Fraxinus excelsior L.) stands to old-growth forests – implications for conservation and use of genetic resources affected by ash dieback
(2018-12-19)Common ash (Fraxinus excelsior L.) is a keystone species, ecologically and economically important in European forests since it supports many associated species, and also produces valuable timber. The transformation of ... -
Gene Prediction with a Hidden Markov Model
(2004-02-11)Annotation of the large and rapidly increasing amount of genomic sequence data requires computational tools for finding genes in DNA sequences. This thesis presents a computational method ... -
Generalizations of Quandles to Multi-Linkoids
(2024-04-10)In this thesis, we define the fundamental quandle of knotoids and linkoids and prove that it is invariant under the under forbidden-move and hence encodes only the information of the underclosure of the knotoid. We ... -
Generalized Multinomial CRR Option Pricing Model and its Black-Scholes type limit
(2006-01-20)We construct the generalized discrete-time model of the underlying stock price process which serves as a better approximation to the stock price process than classical random walk. The ... -
Generalized Seiberg-Witten and the Nahm Transform
(2019-01-11)Using the viewpoint of principal bundles on hyperk¨ ahler reductions, we recover the results of Gocho and Nakajima [GN92] and give insights into the role that the quater- nions play. We define a framework for dimensional ... -
Generalized Seiberg-Witten equations and hyperKähler geometry
(2006-09-18)In this thesis we study a certain generalization of the gauge-theoretical Seiberg-Witten equations over a source 4-manifold X. The generalization involves a hyperKähler manifold M with ... -
Generating early continental crust
(2020-07-09)Archean cratons are the products of geodynamic processes governing the evolution of the early Earth. They comprise felsic granitoids enclosed by folded volcano-sedimentary successions. However, these rocks may not be ... -
Generating information for land evaluation in Tocuyo River basin (Venezuela) by means of GIS and Remote Sensing: environmental parameters, land cover, and erosion hazard
(2007-10-02)Tocuyo River basin is located in Center-Western region of Venezuela, and it comprises many different ecosystem because of Tocuyo River headwaters are located at 3000 m.a.s.l. and it flows ... -
Generation of Endoplasmic Reticulum Protein 28 (ERp28) Knock Out Mice, and Structural and Functional Analysis of its Drosophila Homologue, Wind
(2004-02-16)My thesis work includes two parts: firstly, generation of a knock out mouse of a gene, ERp28, which encodes a putative endoplasmic reticulum chaperone protein and secondly, the structural ... -
Generation of H-Atom Pulses and Associative Desorption of Hydrogen Isotopologues from Metal Surfaces
(2018-03-28)Part I of this work introduces a technique for the generation of H-atom pulses with unprecedented time resolution. In part II an extensive study of the associative desorption reaction of hydrogen isotopologues from metal ... -
Generation of Novel Photochromic GFPs: Fluorescent Probes for RESOLFT-type Microscopy at Low Light Intensities
(2012-05-23)The resolution of a conventional light microscope is limited by diffraction. Hence, light microscopy failed to discern objects that are closer together than half the wavelength of light. STED (STimulated Emission ... -
Generationswechsel in kleinen Familienbetrieben als biographische Arbeit
(2007-07-24)More than 90% of all German companies are family businesses and in one-fifth of them an alternation of generations is taking place at present. In spite of varied career possibilities in ...