Publications
Voici les éléments 161-200 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 ...
Consolidation of Customized Product Copies into Software Product Lines
(2016)
In software development, project constraints lead to customer-specific variants by copying and adapting the product. During this process, modifications are scattered all over the code. Although this is flexible and efficient ...
Coordinating Service Compositions : Model and Infrastructure for Collaborative Creation of Electronic Documents
(2013)
Electronic documents frequently include contributions from different human and non-human sources. The Web, for instance, offers ever-changing content and services which can perform activities during document creation. This ...
Coupled 3D hydrodynamic models for submarine outfalls. Denvironmental hydraulic design and control of multiport diffusers
(2007)
The book describes the hydraulic design and environmental impact prediction technologies for such installations. Focus are the hydrodynamics approached by computer models. First, a multiport diffuser design program was ...
Coupled model transformations for QoS enabled component-based software design
(2008)
This thesis presents the Palladio Component Model and its accompanying transformations for component-based software design with predictable performance attributes. The use of transformations results in a deterministic ...
Coupled-Cluster-R12-Methoden mit Auxiliarbasisfunktionen
(2006)
In der vorliegenden Arbeit wurde ein Näherungsmodell zur Berechnung von CCSD-R12--Grundzustandsenergien unter Verwendung von Auxiliarbasisfunktionen im Rahmen vonAnsatz 1 erfolgreich entwickelt.Des Weiteren wurde durch die ...
Chromatisch konfokale Triangulation - Hochgeschwindigkeits 3D-Sensorik auf Basis der Wellenlängenschätzung mit optimierten Filtern
(2018)
A chromatic confocal 3D sensor is proposed. In contrast to the state of the art, which typically uses spectrometers to measure the wavelength, only a few camera channels are used. Each channel has an unique spectral ...
Decision support system for a reactive management of disaster-caused supply chain disturbances
(2016)
This research contribution presents the Reactive Disaster and supply chain Risk decision Support System ReDRiSS which supports decision-makers of logistical disaster management in the immediate aftermath of a supply chain ...
Decision Support for Biomass Value Chains for the Production of Biochemicals Considering Uncertainties
(2018)
Value chains of bio-based chemicals are very complex. Hence, a strategic decision support tool for bioeconomic site and logistics planning is developed. It includes an integrated model and three sub-models: optimization ...
Design for Customer - Methodik für nachhaltige Kundenlösungen unter Zuhilfenahme eines bedürfnisorientierten Leistungskonfigurators
(2016)
Increasing competitive pressure and the internationalization of markets represent actual challenges for global acting companies. One possibility to meet these challenges is the provision of product-service-systems. The ...
Design and Experimental Investigation of a Second Harmonic 20 kW Class 28 GHz Gyrotron for Evaluation of New Emitter Technologies
(2016)
Gyrotrons are high-power mm-wave tubes. Here, the design, construction and experimental investigation of a 20 kW, 28 GHz gyrotron (2nd harmonic) are reported. This tube was designed to evaluate new emitters for future ...
Design for Stability in Transport Logistics - Definition, Concepts and Evaluation
(2018)
Lean management describes a set of methods combined with a management philosophy which aims at eliminating waste in logistics processes. In production logistics, lean is already widespread and applied successfully. Research ...
Design and Application of Quantified Self Approaches for Reflective Learning in the Workplace
(2015)
Learning by reflection is one of the core processes for improving work performance. We provide a novel approach for reflective learning support by transferring and adapting practices from the Quantified Self to workplace ...
Dichtefunktionaluntersuchungen zur Reaktivität von non-IPR-Fullerenen
(2009)
Kleine Fullerene stellen ein wichtiges Teilgebiet der Forschung an nanostrukturierten Kohlenstoffmaterialien dar. Sie sind jedoch sehr reaktiv, da sie die Regel der isolierten Fünfringe (IPR) verletzen. Experimentell können ...
Dichte Objektsegmentierung in Stereobildfolgen
(2010)
Die in dieser Arbeit vorgestellte Szenensegmentierung zerlegt eine Stereobildsequenz in eine Menge von Bildbereichen, die vom Menschen eindeutig als unabhängig bewegte Verkehrsobjekte interpretierbar sind. Eine Besonderheit ...
Digital game based learning. Proceedings of the 4th International Symposium for Information Design, 2nd of June 2005 at Stuttgart Media University
(2006)
Digital games are a significant element in the digital media and information society. They influence the development of media technologies as well as interface design, online social interaction and new evaluation approaches.The ...
Discretisation techniques for large deformation computational contact elastodynamics
(2014)
The present thesis deals with large deformation contact problems of flexible bodies in the field of nonlinear elastodynamics. Special emphasis will be placed on a consistent spatial and temporal discretization. For the ...
Divertor Development for a Future Fusion Power Plant
(2011)
Nuclear fusion is considered as a future source of sustainable energy supply. Since the H-mode discovery in ASDEX experiment ""Divertor I"" in 1982, the divertor has been an integral part of all modern tokamaks and ...
Dynamiksimulation in der Computergraphik
(2014)
Interactive physically-based simulation of rigid bodies and deformable solids is an important and active research topic in computer graphics as well as an essential part of many applications like virtual prototyping, ...
Claus Köpcke 1831-1911 : Netzwerke; Biographie eines Ingenieurs
(2011)
Der 100. Todestag von Claus Köpcke ist Anlass der Monografie. Vom Alten Land über Hannover und Berlin führt sein Weg ans sächsische Finanzministerium, wo er für den Ausbau des Eisenbahnnetzes verantwortlich ist. Parallel ...
Dreidimensionale Straßenmodelle für Fahrerassistenzsysteme auf Landstraßen
(2013)
Ein dreidimensionales Straßenmodell, basierend auf dem Klothoidenmodell, erweitert durch drei Splinefunktionen, ermöglicht die Modellierung des komplexen Straßenverlaufs von Landstraßen. Im Horizontalen können enge ...