Publications
Now showing items 1721-1760 of 2508
Vorausschauende Regelung von Fahrzeugsystemen durch stochastische Vorhersage der Fahrzeugdynamik
(2021)
Predictive control of vehicle systems often requires application of forecasting models. In this work a stochastic framework for generating forecasts of vehicle dynamics is proposed, to directly address uncertainty within ...
Adaptive Dynamic Programming: Solltrajektorienfolgeregelung und Konvergenzbedingungen
(2022)
In this work, discrete-time and continuous-time methods that integrate flexible reference trajectory representations into Adaptive Dynamic Programming approaches are presented and analyzed for the first time. Moreover, ...
Implicit Incremental Model Analyses and Transformations
(2021)
When models of a system change, analyses based on them have to be reevaluated in order for the results to stay meaningful. In many cases, the time to get updated analysis results is critical. This thesis proposes multiple, ...
Entwicklung und Evaluierung einer Kommunikationsgestützten Lokalisierung
(2023)
The content of this work is the development of a localization system, which enables several driverless transport vehicles to navigate locally in a highly flexible and free way. The ceiling mounted sensor system detects and ...
Wirksamkeit der Taktplanung aus Perspektive des Bauherrn am Beispiel von Produktionsimmobilien in der Automobilindustrie
(2022)
This work analyses the time effect that occurs due to the use of takt planning and takt control during the construction process from the perspective of the client. At first the historical courses of takt planning and takt ...
Modeling martensitic phase transformation in dual phase steels based on a sharp interface theory
(2021)
Martensite forms under rapid cooling of austenitic grains accompanied by a change of the crystal lattice. Large deformations are induced which lead to plastic dislocations. In this work a transformation model based on the ...
Gamification of telematics data to enhance operators’ behaviour for improvement of machine productivity in loading cycles
(2023)
Construction industry is suffering from low productivity rate in various projects such as excavation. Although this issue is discussed in literature and several approaches are proposed to address it, productivity rate is ...
Über die Formalisierung und Analyse medizinischer Prozesse im Kontext von Expertenwissen und künstlicher Intelligenz
(2023)
Digitalization has already transformed many areas of the economy and social life. Aspects of healthcare and clinical practice are also undergoing digital transformation. In light of these developments, this dissertation ...
Deep Reinforcement Learning zur Steigerung von Energieeffizienz und Pünktlichkeit von Straßenbahnen
(2023)
This work investigates how the energy efficiency and punctuality of streetcars can be increased by using AI. The AI is trained on two scenarios at three traffic times each. The determined driving profiles are compared with ...
Dynamic Model-based Analysis of Oxygen Reduction Reaction in Gas Diffusion Electrodes
(2024)
In this work, the first simulation model of oxygen depolarized cathodes (ODC), which are silver catalyst-based gas diffusion electrodes, is presented that considers the phase equilibrium of the gas-liquid interface and ...
Die Baugeschichte des Freiburger Münsterturms
(2023)
The Freiburg Minster spire viewed from the perspective of archaeological building research. Individual building phases of the tower are presented by means of collecting and analysing thousands of stonemason's marks appearing ...
Ganzheitliche Optimierung einer Axialkolbenpumpe durch bedarfsangepasste Entlastung tribologischer Kontakte
(2022)
Swash plate axial piston pumps are used in various industrial & mobile applications. An optimization of this displacement principle can be achieved by the active influence of the hydrostatic relief in tribological contacts.The ...
Fundamentals for the Dimensioning and Optimization of Prestressed Segmented Girders for Application in Bridge Crane Systems
(2022)
Bridge cranes are widely used as discontinuous material handling systems in industrial environments. The so-called crane bridge plays a central role in the overall construction. With increasing span widths and load capacities, ...
Fluorescent thermal imaging method for investigating transient effects in high-temperature superconductor tapes and coils
(2022)
This work presents the development and application of high-speed fluorescent thermal imaging for quench analysis in high-temperature superconductors (HTS). Using a fluorescent coating, with a temperature-dependent light ...
Inverse dynamics of underactuated flexible mechanical systems governed by quasi-linear hyperbolic partial differential equations
(2024)
This work is about the inverse dynamics of underactuated flexible mechanical systems governed by quasi-linear hyperbolic partial differential equations subjected to time-varying Dirichlet boundary conditions that are ...
Advanced Elastocaloric Cooling Devices Based on Shape Memory Alloy Films
(2022)
Elastocaloric cooling is an emerging solid-state cooling technology with the potential to provide environmentally friendly, efficient cooling. The elastocaloric effect in superelastic shape memory alloy films is used to ...
Integration of Flywheel Energy Storage Systems in Low Voltage Distribution Grids
(2023)
A Flywheel Energy Storage System (FESS) can rapidly inject or absorb high amounts of active power in order to support the grid, following abrupt changes in the generation or in the demand, with no concern over its lifetime. ...
Proceedings of the 2020 Joint Workshop of Fraunhofer IOSB and Institute for Anthropomatics, Vision and Fusion Laboratory
(2021)
In 2020, the annual joint workshop of the Fraunhofer IOSB and the Vision and Fusion Laboratory of the KIT was hosted at the IOSB in Karlsruhe. For a week from the 27th to the 31st July the doctoral students of both ...
Bauen mit rezyklierten mineralischen Baustoffen
(2024)
Due to its high CO2-emissions, the concrete industry bears a significant responsibility in the necessary reduction of global CO2-emissions. The possibility of recycling is crucial in implementing sustainable concrete ...
Impedanzbasierte Spannungsprädiktion von Lithium-Ionen-Batterien
(2024)
This work presents a physically motivated model that predicts the cell voltage of a lithium-ion-battery based on its impedance. The model was parameterized and validated on a commercial pouch cell. In a comprehensive ...
Städtebauliche und sozioökonomische Implikationen neuer Mobilitätsformen
(2022)
Many experts assume that urban mobility, and with it the urban environment, will change significantly in the future, partly due to new, digitally-supported mobility services. It is therefore important to understand how ...
Limited Information Shared Control and its Applications to Large Vehicle Manipulators
(2024)
This work focuses on the Limited Information Shared Control and its controller design using potential games. Through the developed systematic controller design, the experiments demonstrate the effectiveness and superiority ...
Quantum Tunneling of Josephson Vortices in High-Impedance Long Junctions
(2023)
In the last decades, superconducting devices have emerged as a promising platform for quantum technologies, including quantum sensing and quantum computing. Their key elements are Josephson junctions, which allow for ...
Optimizing photocatalysts and photoreactors for solar fuel synthesis
(2023)
The work represents a toolbox for the design of a highly efficient photocatalytic process for solar-driven synthesis. The focus is the optimization of photoreactors and photocatalysts. The described photoreactor design ...
Bestimmung der thermischen Transporteigenschaften poröser Elektroden von Lithium-Ionen Batterien
(2021)
This contribution presents an analytical and a numerical model for predicting the effective thermal conductivity of porous electrode coatings as a function of microstructure parameters. Both models account for the morphological ...
Probabilistic Motion Planning for Automated Vehicles
(2021)
In motion planning for automated vehicles, a thorough uncertainty consideration is crucial to facilitate safe and convenient driving behavior. This work presents three motion planning approaches which are targeted towards ...
Automatisierte kooperative Transition einer Regelungsaufgabe zwischen Mensch und Maschine am Beispiel des hochautomatisierten Fahrens
(2021)
This work proposes a concept based on haptic-shared control to assist humans in taking over a task from an automation, such as at the end of highly automated driving. The description of the interaction by time-variant ...
State-of-the-Art of High-Power Gyro-Devices. Update of Experimental Results 2021
(2021)
This report presents an update of the experimental achievements published in the review “State- of-the-Art of High-Power Gyro-Devices and Free Electron Masers”, Journal of Infrared, Millime-ter, and Terahertz Waves, 41, ...
Manufacturing-constrained multi-objective optimization of local patch reinforcements for discontinuous fiber reinforced composite parts
(2021)
In this work, contributes to the optimization of local continuous fiber reinforcement patches, under consideration of manufacturing constraints. This approach requires specific optimization strategies. Therefore, an ...
Stabilität und Variabilität mobilitätsbezogener Alltagshandlungen – eine qualitative soziale Netzwerkanalyse
(2023)
In order to understand the potential for change and persistence in everyday mobility-related practices, this book highlights the importance of social relationships in people's lives, such as with friends and family members, ...
Forum Bildverarbeitung 2020
(2020)
Image processing plays a key role for fast and contact-free data acquisition in many technical areas, e.g., in quality control or robotics. These conference proceedings of the “Forum Bildverarbeitung”, which took place on ...
Forum Bildverarbeitung 2024 = Image Processing Forum 2024
(2024)
Image processing combines the disciplines of cameras – image-based sensors – with the processing of the sensor data – the images. From this follows the particular attraction of this field. The conference proceedings at ...
Auf metrischen und differentialgeometrischen Konzepten basierende neue mathematische Algorithmen zur Sensordatenfusion mit Anwendungen in der Faser-Bragg-Gitter-Formsensorik
(2021)
In this work a Fiber Bragg grating (FBG) shape sensor for shape detection of flexible objects is presented. Such sensors are used particularly in medical technology. Although the subject of FBG sensor technology has been ...
Tracking von Menschen und menschlichen Zuständen
(2021)
This work evaluates different approaches for observing human states. The considered human conditions comprise the current position, the actual performance, and the emotional facial expression. This work relies on tracking ...
Methodik für Wissens- und Prozessmanagement bei der interaktiven kollaborativen Montage variantenreicher Produkte
(2021)
Collaboration-oriented knowledge and process management must support the integration of all systems involved, address specific questions of the division of labor within the control system, but also enable the planning and ...
Steigerung der thermischen Stabilität von warm- und kaltgewalztem Wolfram durch Kalium-Dotierung für die Fusionsenergietechnik
(2025)
Cold-rolled tungsten with high degrees of deformation exhibits exceptionally high ductility. However, the required ultra-fine-grained microstructure is thermally unstable. A promising stabilization approach is offered by ...
Analyse von Störungen und Dispositionen im ÖPNV
(2025)
In this work, disruptions and dispositions in public transport are analysed using different methods. Interviews and observations are conducted within control centres and data from the ITCS is analysed. From this, influencing ...
Driver Behavior Analysis and Decision-Making for Autonomous Driving at Non-Signalized Inner City Intersections
(2025)
The focus of this work is on human driving behavior in road traffic. Two aspects of it are covered, the prediction of it, including the identification of relevant influencing factors, as well as the behavior generation for ...
Systemauslegung autarker Hybridantriebe unter Berücksichtigung kundenspezifischer Randbedingungen
(2024)
In order to meet the legal requirements, the efficiency of conventional drives can be improved by using electric hybrid systems. Autarkic hybrid systems without external charging options can offer a high cost/benefit ratio. ...
Untersuchung von Wechselstromverlusten verschiedener hochtemperatursupraleitender Mehrleiterkonzepte für dreiphasige Hochstromanwendungen
(2025)
Given the energy transition in Germany, network operators face the challenge of providing reliable energy transmission. The use of superconducting cables represents an alternative for conventional medium- and high-voltage ...