Mathematisch-Naturwissenschaftliche Fakultät: Auflistung Mathematisch-Naturwissenschaftliche Fakultät nach Titel
Anzeige der Dokumente 4239-4258 von 4324
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Wax Ester Synthases/Acyl-CoA:Diacylglycerol Acyltransferases (WS/DGATs) from Arabidopsis thaliana
(2022-06-22)Wax esters occur in the surface wax of plants and are involved amongst others in the plant’s response to drought. In Arabidopsis thaliana, a family of 11 genes are annotated as bifunctional wax ester synthases/acyl-CoA ... -
Weak and Measure-Valued Solutions of the Incompressible Euler Equations
(2012-06-21)This thesis is concerned with the existence problem for weak solutions of the incompressible Euler equations in arbitrary dimension, and with the relationship between weak solutions and other "very weak'' concepts of ... -
The Weak Coupling Method for Coupling Continuum Mechanics with Molecular Dynamics
(2009-04-17)For the global behavior of solids in structural mechanics of nonlinear processes, local effects on the atomistic level play an important role. Often a direct numerical simulation of the macroscopic behavior by a complete ... -
Weak gravitational lensing: Detection of mass concentrations in wide field imaging data
(2004)The deflection and distortion of a light bundle by tidal gravitational fields is described in the framework of General Relativity. There, light bundles from a source follow exactly the curvature of spacetime, and are ... -
Weak gravitational lensing analyses of clusters of galaxies
(2011-04-04)Comprising the most massive gravitationally bound and relaxed structures in the Universe, galaxy clusters are essential in providing a deeper understanding of the properties of dark matter. Being cosmologically young ... -
Weak Gravitational Lensing and Galaxy Bias
(2005)Galaxies were formed from primordial baryonic matter within the gravitational potential of the dark matter. Today a confusing wealth of different galaxy populations is known. Explaining the emergence of this zoo of galaxy ... -
Weak Gravitational Lensing Study of Dark Matter Distribution in The Abell 226/228 Supercluster Field Using The COMBO-17 Survey Data
(2017-06-30)Accurate photometric calibration of optical data is crucial for photometric redshift estimation. We present the Softassign Procrustes Matching method (SPM) to improve the colour calibration upon the commonly used Stellar ... -
Weak Lensing & Substructure
(2011-05-10)Understanding the evolution of the dark matter halos of galaxies after they become part of a cluster is essential for understanding their own evolution.
This thesis is a feasibility study on applying galaxy-galaxy ... -
Weak Lensing Flexion Study
(2010-09-01)In this thesis, I studied the higher order weak gravitational lensing effect,flexion, and some of its potential applications in cosmology.
Flexion, as a new subject in lensing, has shown its advantages in various ... -
Weak lensing magnification & baryon acoustic oscillations in galaxy-galaxy lensing
(2021-09-08)Cosmology is the science that aims to explain the Universe in its entirety. While the standard cosmological model has had tremendous success in explaining independent astrophysical observations, we still lack understanding ... -
Weak lensing magnification in SpARCS
(2020-02-04)The growth of large scale structure is one of the fundamental predictions of any cosmological model. Galaxy clusters are the highest peaks in the cosmological matter density field and therefore of prime importance in ... -
Weak Lensing Mass Determination of Eight X-ray Selected Galaxy Clusters from the 400d Survey
(2011-01-19)Evolution in the mass function of galaxy clusters sensitively traces both the expansion history of the Universe and cosmological structure formation. Hence, measuring the number density of galaxy clusters as a function of ... -
Weak lensing measurements for the APEX-SZ cluster survey
(2014-12-02)The formation of structures in the universe, such as galaxy clusters, depends sensitively on cosmological parameters. Measuring the abundance of clusters as a function of mass and redshift therefore yields a way to constrain ... -
Weak lensing shape measurement calibration studying effects of stronger shears and cluster contamination for the mass estimation of relaxed galaxyclusters
(2020-09-25)Weak lensing measurements suffer from well-known shear estimation biases, which can be partially corrected for with the use of image simulations. In this work we present an analysis of simulated images that mimick observations ... -
Weak Lensing–X-ray Scaling Relations for a High Redshift Galaxy Clusters Sample
(2017-07-21)Accurate cosmology through large X-ray selected galaxy cluster samples will rely on accurate mass estimates and well-calibrated mass-observable relations. The comparison of independent approaches, such as X-ray and ... -
Weakly and Semi Supervised Semantic Segmentation of RGB Images
(2021-01-11)Teaching machines semantic scene understanding from RGB images received a lot of attention in recent years, since this ability is crucial for several applications like autonomous driving, robotics or video surveillance. ... -
Wechselwirkung von Licht mit ferroelektrischen Domänen in Lithiumniobat- und Lithiumtantalat-Kristallen
(2004)Ferroelektrische Domänenstrukturen in Lithiumniobat-Kristallen sind von großem Interesse für eine Vielzahl von optischen Anwendungen. Allerdings lassen sich entsprechende Strukturen im Mikrometerbereich mit herkömmlichen ... -
Wechselwirkung zwischen Ultraschall & Proton-Spin in wässriger Lösung
(2011-03-16)Die Suche nach einem Einfluss von Ultraschall auf das Kernspinsystem in weicher Materie ist eine spannende Aufgabe. Nachdem in den 50er Jahren gezeigt werden konnte, dass in homogenen Flüssigkeiten die hohe Moleküldynamik ... -
Weiterentwicklung der Intramertechnologie zur Charakterisierung von Cytohesin-2 als neuen Effektor der MAP-Kaskade in HeLa-Zellen
(2004)Die Proteine der Klasse der kleinen Guaninnukleotid-Austauschfaktoren (GEF) katalysieren den Austausch von GDP gegen GTP an monomeren G-Proteinen der ARF-Familie und sind an der Regulation des Vesikeltransports beteiligt. ... -
Weiterentwicklung und Optimierung der Kontrolle der geschlossenen Gleichgewichtsbahn und des Modells der Elektronen-Stretcher-Anlage ELSA
(2023-04-17)An der Beschleunigeranlage ELSA am Physikalischen Institut der Universität Bonn werden gegenwärtig zwei Experimente betrieben, welche die innere Struktur der Nukleonen untersuchen. ELSA zeichnet sich insbesondere durch die ...
