Publications
Voici les éléments 161-240 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 ...
Dreidimensionale und tiefengemittelte Large-Eddy-Simulation von Flachwasserströmungen
(2004)
In dieser Arbeit wird ein tiefengemitteltes Large-Eddy-Simulationsverfahren für Flachwasserströmungen entwickelt. Dazu liefern umfangreiche dreidimensionale LES-Rechnungen Informationen über die in den tiefengemittelten ...
Dreidimensionale Skizzen in erweiterter Realität
(2006)
Die Technik der Erweiterten Realität (ER) kann dazu eingesetzt werden, künstliche und natürliche Sinneseindrücke zu einer konsistenten Gesamtwahrnehmung zu verschmelzen. Dabei soll der Nutzer den Eindruck haben, dass die ...
Einfluss von suspendierten und immobilisierten Mikroorganismen auf die Eigenschaften des Kapillarsaumes : Untersuchungen im Rahmen der DFG-Forschergruppe 'Dynamic Capillary Fringes, A Multidisciplinary Approach'
(2012)
Experiments with capillary fringes (CF) in quartz sand were conducted. The respiratory activity, cell growth or the biofilm formation by different soil bacteria in the CF were examined. Highest bacterial activity and cell ...
Einführung in die Gerinnehydraulik
(2009)
Das ingenieurorientierte Fachgebiet der Gerinnehydraulik"" basiert auf den strömungsmechanischen Grundlagen der Hydromechanik, verwendet aber meist vereinfachende eindimensionale Strömungsansätze.Das vorliegende Lehrbuch ...
Einführung in die Hydromechanik
(2007)
Das vorliegende Lehrbuch ist ein Referenzwerk zur strömungsmechanischen Grundlagenvorlesung ""Hydromechanik"" und ermöglicht Fachfremden einen Einstieg in die Grundlagen der Beschreibung von Strömungen (Fluideigenschaften, ...
Der Einfluss von natürlichem Aerosol auf Wolken über Mitteleuropa
(2017)
This work studies the interaction of natural aerosol with clouds for two different weather regimes in Central Europe. One model study highlights the impact of sea salt aerosol on postfrontal, convective cumulus clouds. The ...
Electrochemical Performance and Stability of Ba?.?Sr?.?Co?.?Fe?.?O??? for Oxygen Transport Membranes
(2015)
Mixed ionic-electronic conducting (MIEC) ceramics as oxygen transport membranes (OTMs) can provide high oxygen permeation rates at comparably low energy demands. For this purpose, Ba?.?Sr?.?Co?.?Fe?.?O??? (BSCF) shows the ...
Electrochemical SPM study of 2D phase and 3D phase formation of Zn at the ionic liquid / Au(111) interface [online]
(2004)
Zn electrodeposition in the under- (UPD) and overpotential (OPD) ranges by means of in-situ Scanning Tunneling Microscopy (STM) was examined, supported by in-situ cyclic voltammetry and chronoamperometrie. The underpotential ...
The Electrochemical Oxidation of H2 and CO at Patterned Ni Anodes of SOFCs
(2011)
In this work, a deeper understanding of the electrochemical oxidation at SOFC anodes was gained by the experimental characterization of patterned Ni anodes in H2-H2O and CO-CO2 atmosphere. By high resolution data analysis, ...
Diagnostics of Short Electron Bunches with THz Detectors in Particle Accelerators
(2019)
Several novel diagnostic systems based on the detection of coherent THz radiation are presented. The investigation of the photon beam properties allow for bunch-by-bunch and turn-by-turn diagnostics of the emitting electron ...
The dynamics of finite-size settling particles
(2015)
This book contributes to the fundamental understanding of the physical mechanisms that take place in pseudo turbulent particulate flows. In the present work we have considered the sedimentation of large numbers of spherical ...
Dynamics of Evolution and Learning
(2008)
The book develops a unifying perspective on how learning influences evolutionary dynamics which for the first time explains seemingly contradicting results from the literature. It also reveals formerly unknown facets of ...
Eisenbahn- und Raumentwicklung in der Rhein-Neckar-Region [online]
(2004)
Über den Bau der Neubaustrecke Rhein-Main/Rhein-Neckar (NBS) besteht ein allgemeiner Konsens zwischen Bahn, Bund, Ländern und der Region. Lediglich bei der Trassierung (Führung aller Züge über Mannheim HBF bzw. die Möglichkeit ...
Customer intimacy analytics : leveraging operational data to assess customer knowledge and relationships and to measure their business impact
(2012)
The ability to capture customer needs and to tailor the provided solutions accordingly, also defined as customer intimacy, has become a significant success factor in the B2B space - in particular for increasingly ""servitizing"" ...
Customer-Relationship-Management-Systeme unter Nutzung mobiler Endgeräte
(2008)
Customer Relationship Management (CRM) und die Unterstützung von CRM durch stationäre und mobile Informations- und Kommunikationstechnik (IKT) haben in der einschlägigen Literatur eine hohe Relevanz. In der Arbeit werden ...
Dialog, Führung und Zusammenarbeit - Führungspädagogik als Agogik : Analyse und Kritik anhand eines Filialunternehmens im Bereich Drogeriewaren
(2009)
Mit dieser Forschungsarbeit wird den zentralen Fragen nachgegangen, inwieweit Dialog, Führung und Zusammenarbeit im untersuchten Unternehmen gelebt werden? Inwieweit ist im Rahmen des geltenden Arbeitsrechts eine symmetrische ...
Dienstbasierte Kommunikation über unzuverlässige drahtlose Verbindungen für selbstorganisierende Sensor-Aktor-Netze
(2011)
Die in dieser Arbeit vorgestellte ServiceCast-Architektur umfasst Lösungen zur dienstbasierten Adressierung und Kommuikation in drahtlosen Sensor-Aktor-Netzen. Besondere Beachtung kommt der realistischen Repräsentation und ...
Dispersionsverstärkte Sinterstähle hergestellt über Field Assisted Sintering
(2011)
Es wird die Herstellung und Charakterisierung von partikulären Stahl-Keramik-Verbundwerkstoffen beschrieben. Die Rohmaterialien wurden pulvermetallurgisch verarbeitet und durch sogenanntes ""Field Assisted Sintering"" (auch ...
Deterministic Sampling for Nonlinear Dynamic State Estimation
(2016)
The goal of this work is improving existing and suggesting novel filtering algorithms for nonlinear dynamic state estimation. Nonlinearity is considered in two ways: First, propagation is improved by proposing novel methods ...
Determining Cycle Times for Packing in Distribution Centres
(2014)
Scope of this work is to determine cycle time formulas for packing in distribution centres. No such formulas exist today, even if it is the second most important process after picking. Based on examining packing, morphological ...
Development of an Electrochemical Biosensor Platform and a Suitable Low-Impedance Surface Modification Strategy
(2014)
In this work, a flexible biosensor platform based on impedance spectroscopy and comprising of gold electrodes, polymeric flow cells and a suitable surface modification were developed. Initially, several surface modification ...
Development of lumped element kinetic inductance detectors for mm-wave astronomy at the IRAM 30 m telescope
(2013)
This thesis studies the development of LEKID arrays for the use in a mm-wave camera for the IRAM 30m telescope. This includes the design and fabrication of the superconducting microresonators, the modeling and optimization ...
Development of Microactuators Based on the Magnetic Shape Memory Effect
(2013)
The giant magneto-strain effect in Ni-Mn-Ga alloys is particularly attractive for actuator applications. Two different approaches are being pursued to develop MSM microactuators. To observe large deflections of Ni-Mn-Ga ...
Development of a completely decentralized control system for modular continuous conveyors
(2009)
To increase the flexibility of continuous conveyor systems, a completely decentralized control system for a modular conveyor system was developed. The system is able to carry conveyor units without any centralized ...
Development of an Air Coil Superconducting Fault Current Limiter
(2016)
Electrical power grids are the lifeline of technical infrastructure and fundamental for industry and modern lives. Fault Currents can disrupt the continuous supply of electrical energy, cause instable grid conditions and ...
Druckrohrleitungen aus Holz
(2006)
Im Hinblick auf die Nutzung unterirdischer Wasserressourcen auf der indonesischen Insel Java wurde der Einsatz von Druckrohrleitungen aus Holz als Zuleitung für Wasserkraftanlagen untersucht. Die Forschungsarbeit beschreibt ...
Druckrohrleitungen aus Holz - Anwendung und Bemessung
(2007)
Im Rahmen dieser Arbeit wurde der Einsatz von Druckrohrleitungen aus Holz als Zuleitung für Wasserkraftanlagen untersucht. Der Einfluss der Holzfeuchte auf relevante Festigkeits- und Steifigkeitseigenschaften von ausgewählten ...
Dynamic Network Notation: A Graphical Modeling Language to Support the Visualization and Management of Network Effects in Service Platforms
(2013)
Service platforms have moved into the center of interest in both academic research and the IT industry due to their economic and technical impact. These multitenant platforms provide own or third party software as metered, ...
Dynamic risk management with Markov decision processes
(2008)
An important tool in risk management is the implementation of risk measures. We study dynamic models where risk measures and dynamic risk measures can be applied. In particular, we solve various portfolio optimization ...
Dynamic Capacity Control in Air Cargo Revenue Management
(2013)
This book studies air cargo capacity control problems. The focus is on analyzing decision models with intuitive optimal decisions as well as on developing efficient heuristics and bounds. Three different models are studied: ...
Elastomerreibung und Kraftübertragung beim Abscheren von aktiv betriebenen Vakuumgreifern auf rauen Oberflächen
(2017)
The present work includes the analysis of the load transmission and the modeling of the friction coefficient ? on rough surfaces during the shearing process of actively-driven vacuum grippers. The two main components of ...
Elastic and Inelastic Scanning Tunneling Spectroscopy on Iron-Based Superconductors
(2019)
Within this work, the pairing mechanism of conventional (Pb) and unconventional superconductors (SrFe2(As1-xPx )2 , FeSe, FeSe/STO) was investigated experimentally by means of elastic and inelastic tunneling spectroscopy ...
Design Space Exploration zur multikriteriellen Optimierung elektrischer Sportwagenantriebsstränge: Variation von Topologie und Komponenteneigenschaften zur Steigerung von Fahrleistungen und Tank-to-Wheel Wirkungsgrad
(2016)
The link between drivetrain topology and energy consumption for all electric sports cars is analyzed. The drivetrain topology is varied along with the characteristics of the used components to find a system optimum instead ...
Design studies towards a 4 MW 170 GHz coaxial-cavity gyrotron
(2011)
In this work the feasibility of a 4 MW 170 GHz coaxial-cavity gyrotron for continuous wave operation is demonstrated. For the first time complete physical designs of the major gyrotron components are elaborated. In a first ...
Diffraktive Optiken im Automobil - Achromatisierung, Athermalisierung, Formung von Scheinwerferlichtverteilungen
(2017)
The complexity of optical systems in headlamps is increasing rapidly. This leads to new design concepts, but it is also leading to increasing influence of aberrations. This work is dealing with the minimization of chromatical ...
Diffraction and Scattering in Launchers of Quasi-Optical Mode Converters for Gyrotrons
(2012)
In this work different methods for the calculation of diffraction and scattering in launchers of quasi-optical mode converters for gyrotrons are compared, ranked and extended. The extension gives the opportunity to take a ...
DiscountCity - über die Geschichte und Zukunft der Stadt des Einzelhandels
(2014)
Are discount chains responsible for 'sellout' of the classical city? What kind of city do they endorse and what forms of urbanization do they really engender? Can planning practices still intervene to steer the course of ...
Drying, film formation and open time of aqueous polymer dispersions : an investigation of different aspects by rheometry and inverse-micro-raman-spectroscopy (IMRS)
(2008)
The application properties and the final coating properties of waterborne polymer dispersions are poor compared to the ones of polymer solutions with organic solvents. This is expressed by a short open time and by ...
Dynamic Truck Meeting (DTM) : ein Prozess- & Schnittstellenstandard zur Realisierung von dynamischen Begegnungsverkehren mit Hilfe von Dispositions- und Telematik-Systemen. Band 1 (Prozess-Standard) und Band 2 (Schnittstellenstandard). (KIT Scientific Reports ; 7613 und 7614)
(2012)
Im Projekt Dynamic Truck Meeting (DTM) wurde ein anbieterunabhängiger Prozess- und Schnittstellenstandard zur Realisierung von dynamischen Begegnungsverkehren mit Hilfe von Telematik- und Dispositionssystemen erarbeitet. ...
Einmischprozesse am Oberrand der konvektiven atmosphärischen Grenzschicht
(2011)
Der Prozess des Einmischens von Luft aus der freien Atmosphäre in die konvektive Grenzschicht wird mit Hilfe eines Doppler Lidars und konzeptioneller Ansätze untersucht. Durch detaillierte Betrachtung der Vorgänge an der ...