Publications
Voici les éléments 161-180 de 2508
Characterization and Modeling of the Ratcheting Behavior of the Ferritic-Martensitic Steel P91
(2017)
In this work, the ratcheting-behavior of 9%Cr-1%Mo ferritic–martensitic steel is studied with uniaxial cyclic loading. To describe the ratcheting-behavior of this steel, a visco-plastic constitutive model with consideration ...
Characterization and Modeling of Electrochemical Energy Conversion Systems by Impedance Techniques
(2012)
This thesis introduces (i) amendments to basic electrochemical measurement techniques in the time and frequency domain suitable for electrochemical energy conversion systems like fuel cells and batteries, which enable ...
Characterisation of REBCO Roebel cables
(2019)
This work concerns the characterization of high-temperature superconducting REBCO Roebel cables for use in accelerator magnets. The effects of bending, torsion and compressive stress on the cable are investigated. The ...
Body Matched Antennas for Microwave Medical Applications
(2013)
In this work, new concepts of body-matched antennas for microwave medical applications were developed, where the antennas are placed directly on or in the human body. Two types of antennas were designed - on-body matched ...
Chemische und biologische Gefährdung für Boden und Grundwasser durch undichte Abwasserkanäle
(2008)
Um das Gefährdungspotential von Abwasser aus undichten Kanälen beurteilen zu können, müssen Untersuchungen von verschiedenen Disziplinen bezüglich Mengen, Konzentration, Kolmation, aeroben und anaeroben Bedingungen, ...
Chemische und elektrochemische Methoden zur Oberflächenbearbeitung von galvanogeformten Nickel-Mikrostrukturen
(2010)
Im Rahmen dieser Arbeit wurden drei verschiedene (elektro-) chemische Verfahren sowie die Verfahrenskombination Läppen und Elektropolieren zur Oberflächenbearbeitung von LIGA-Nickel-Mikrostrukturen in Hinblick auf die ...
Compact Environment Modelling from Unconstrained Camera Platforms
(2018)
Mobile robotic systems need to perceive their surroundings in order to act independently. In this work a perception framework is developed which interprets the data of a binocular camera in order to transform it into a ...
Computergestützte Verfahren zur pragmatischen Beurteilung der Tragwiderstände von Brettschichtholz: Zusammenfassung exemplarischer Simulationsstudien
(2016)
This book contains experiences and results of computer simulations in the field of research on glued laminated timber. Literature and references to the corresponding methodical approach are given to facilitate the access ...
Computer science approach to quantum control
(2006)
This work considers several hypothetical control processes on the nanoscopic level and show their analogy to computation processes. It shows that measuring certain types of quantum observables is such a complex task that ...
Consideration of runouts by the evaluation of fatigue experiments
(2019)
In EC3, the fatigue life of a steel structure subjected to a cyclic load is estimated by its detail category. This category is based on the S-N, curves which are obtained by applying the Basquin model. Statistically, this ...
A Contribution to Active Infrared Laser Spectroscopy for Remote Substance Detection
(2017)
In this work we present a stand-off, long wave infrared (LWIR) spectroscopy system for remote detection of hazardous substances. The principle is based upon wavelength selective illumination using External Cavity Quantum ...
A Contribution to Resource-Aware Architectures for Humanoid Robots
(2017)
The goal of this work is to provide building blocks for resource-aware robot architectures. The topic of these blocks are data-driven generation of context-sensitive resource models, prediction of future resource utilizations, ...
Contrails and Climate Engineering - Process Studies on Natural and Artificial High-Level Clouds and Their Impact on the Radiative Fluxes
(2019)
Two aspects of anthropogenic impacts on the atmosphere are investigated using means of numerical weather prediction. A case study is conducted to estimate the impact of such artificial clouds on the incoming solar radiation ...
Bounds for optimization of the reflection coefficient by constrained optimization in hardy spaces
(2009)
The purpose of this book is twofold. Our starting point is the design of layered media with a prescribed reflection coefficient. In the first part of this book we show that the space of physically realizable reflection ...
Charakterisierung und Modellentwicklung von Natur und Funktionalität der Kathoden/Elektrolyt-Grenzfläche von Hochtemperatur-Brennstoffzellen (SOFC)
(2019)
Solid oxide fuel cells (SOFC) achieve high efficiencies, the lower the internal electrochemical losses are. This work investigates insulating secondary phases at the cathode/electrolyte interface that are formed during ...
Charakterisierung und Bewertung der Zug- und Ermüdungseigenschaften von Mikrobauteilen aus 17-4PH Edelstahl - Ein Vergleich von mikropulverspritzgegossenem und konventionell hergestelltem Material
(2017)
This book investigates the tension, fatigue and microstructural properties of micro powder injection molded (µPIM) 17-4PH stainless steel components typically used in micro systems technology. The comparison with conventional ...
Charakterisierung und Modellierung der wässrigen Lithium-Luft Batterie
(2017)
To estimate the reachable specific energy and power of aqueous Li-air batteries, a physical based model was developed, which for the first time includes the microstructure of Li-air cells. Parameters like solid/liquid ...
Charakterisierung und Modellierung der Steifigkeit von langfaserverstärktem Polypropylen
(2017)
Dynamical mechanical analysis is used to investigate the temperature dependent, anisotropic visco-elastic stiffness, damage induced stiffness degradation as well as physical aging of polypropylene and the anisotropic ...
Charakterisierung und Modellierung von instabilen Metamaterialien
(2019)
Metamaterials, composed of structural building blocks, derive their effective properties from the structure, rather than from their constituent materials they are built from. By designing and analysing a mechanical unstable ...
Charge Transport in DNA - Insights from Simulations
(2013)
Charge transport and charge transfer (CT) capabilities of deoxyribonucleic acid (DNA) are investigated. A QM/MM multi-scale framework is applied to calculate the CT capabilities of DNA under conditions resembling the ...