Publications
Now showing items 201-300 of 402
Impacts of natural disasters on supply chain performance
(2021)
Considering the increasing importance of natural disaster events it is inevitable to also focus on their impacts on supply chains as well as their performance impacts on them. The developed approach SCperformND (Supply ...
Die Dialektik der Globalisierung
(2009)
not yet available
Molecular Motor Based on Single Chiral Tripodal Molecules Studied with STM
(2023)
This work presents a single molecular motor driven by the current in an STM. Its chiral functional group is supposed to perform a rotation in a preferred direction, proven by Binomial tests to be statistically significant. ...
Methodische Evaluation von Verfahren zur Korrektur atmosphärischer Turbulenz in Bildsequenzen
(2024)
For long horizontal propagation distances, it is the atmosphere, not the sensor technology which is responsible for the quality of acquired image data. Atmospheric turbulence causes increased blur, reduced (color) contrast ...
Effizienzoptimierung mobilhydraulischer Load-Sensing-Systeme durch Reduzierung systembedingter Druckverluste am Beispiel eines Hydraulikbaggers
(2024)
In this thesis, a hydraulic circuit will be developed, which can reduce the partial load losses of hydraulic-mechanic load-sensing systems (LS). As reference application, the LS system of an hydraulic excavator will be ...
Timber fasteners
(2024)
Current design rules for timber joints with dowel-type fasteners require input parameters such as yield moment and withdrawal capacity, which are determined within the European framework of certification testing. Databases ...
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 ...
Querdynamik von Velomobilen unter Berücksichtigung der Reifeneigenschaften
(2024)
Alternative vehicle concepts such as velomobiles can contribute to reducing CO2 emissions in the mobility sector. These lightweight, aerodynamic recumbents are capable of high speeds, which expands their field of application ...
Principles of Catastrophic Forgetting for Continual Semantic Segmentation in Automated Driving
(2024)
Deep learning excels at extracting complex patterns but faces catastrophic forgetting when fine-tuned on new data. This book investigates how class- and domain-incremental learning affect neural networks for automated ...
Textkompetenz in den MINT-Fächern
(2024)
This edited volume is dedicated to the topic of text literacy in STEM subjects. Text literacy is understood as the ability to receive, produce and learn from texts. The topic of text literacy is dealt with in three sections, ...
Flottendatenbasierte physikalische Routenenergiebedarfsprognose
(2024)
To work towards climate goals with energetic planning functions in electric vehicles, a precise energy demand forecast along planned routes is essential, which separately quantifies relevant influences. For that this work ...
Forum Bildverarbeitung 2020
(2020)
Trustworthy Distributed Usage Control Enforcement in Heterogeneous Trusted Computing Environments
(2025)
Distributed usage control allows to regulate the use of data even after sharing. However, existing solutions are susceptible to manipulation by dishonest data receivers. This work investigates the use of trusted computing ...
Referenzarchitekturmodell für Experience Management
(2024)
The recording and analysis of individual experience worlds via digital feedback communication offers new opportunities. In conjunction with the reconstruction of associated digital event chains, a customer's experience ...
Computational, Label, and Data Efficiency in Deep Learning for Sparse 3D Data
(2024)
Deep learning is widely applied to sparse 3D data to perform challenging tasks, e.g., 3D object detection and semantic segmentation. However, the high performance of deep learning comes with high costs, including computational ...
Experimentelle Untersuchung der Zündung von Kerosin Jet A-1 unter subatmosphärischen Bedingungen
(2024)
The present study investigates the generation of a flame kernel in the polydisperse spray of a complex fuel under the influence of turbulent flow and under subatmospheric conditions in order to contribute to a better ...
Eine Methodik zur Definition von Zielkriterien am Beispiel des tieffrequenten Geräuschkomforts eines Fahrzeugs
(2024)
Digital development using target values and criteria is necessary to reduce the development costs and duration of a vehicle. For this reason, a methodology is developed, from problem formulation and model creation to target ...
Praxis der Digitalen Signalverarbeitung
(2017)
The basics of digital signal processing are introduced with eight practical experiments. The experiments cover a wide range of different topics such as sensor fusion, vibration analysis, acoustics and image processing. The ...
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 ...
Erfassung der Sichtweite bei Nebel durch die Kombination aus hochauflösendem Scheinwerfer und einem Kamerasystem
(2024)
In this work, the opportunities of high resolution headlamps are used in combination with camera sensors as a visibility meter in fog.
Different concepts are presented and investigated in a fog chamber. The results are ...
Objective identification and climatology of mesoscale high-wind features within extratropical cyclones
(2024)
Strong winds accompanying extratropical cyclones are commonly associated with various mesoscale features. This work introduces RAMEFI (RAndom-forest-based Mesoscale wind Feature Identification), an objective and flexible ...
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 ...
Application of Data Mining and Machine Learning Methods to Industrial Heat Treatment Processes for Hardness Prediction
(2024)
This work presents a data mining framework applied to industrial heattreatment (bainitization and case hardening) aiming to optimize processes and reduce costs. The framework analyses factors such as material, production ...
Probabilistic Prediction of Energy Demand and Driving Range for Electric Vehicles with Federated Learning
(2024)
In this work, an extension of the federated averaging algorithm, FedAvg-Gaussian, is applied to train probabilistic neural networks. The performance advantage of probabilistic prediction models is demonstrated and it is ...
Context-based Access Control and Attack Modelling and Analysis
(2024)
This work introduces architectural security analyses for detecting access violations and attack paths in software architectures. It integrates access control policies and vulnerabilities, often analyzed separately, into a ...
Turbulent coherent structures, Secondary currents and Sediment ridges
(2024)
The origin of secondary currents and subaqueous sediment patterns in natural rivers is analysed from first principles. For this purpose, simulations of sediment transport in canonical turbulent open channel flows are ...
Development and Evaluation of Coded Aperture Reconstruction Methods for Intraoperative Gamma Cameras
(2024)
Intraoperative Gamma Cameras are becoming increasingly common for radio-guided surgery. Coded Aperture Imaging has been proposed as a collimation technique, because it offers a better trade-off between sensitivity and ...
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 ...
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 ...
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 ...
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, ...
Neue Wege beruflicher Qualifizierung zur Stärkung der wirtschaftlichen Prosperität
(2010)
not yet available
Strengthening Resilience of Supply with Essential Goods through Public-Private Emergency Collaborations
(2023)
Companies can be valuable partners in delivering essential goods but must be appropriately motivated to participate in humanitarian crisis management. This work provides valuable insights into the status of humanitarian ...
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 ...
Experimental characterization and modelling of textile reinforced masonry structures with the Equivalent frame method
(2022)
An innovative strengthening technique for the seismic retrofitting of masonry buildings is the fabric-reinforced cementitious matrix (FRCM). The system presented in this work is EQ-GRID, which consists of a multi-axial ...
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 ...
Diagenetic controls on fluid flow and mechanical properties in Rotliegend reservoir sandstones
(2021)
Reservoir quality of Rotliegend sandstones is mainly controlled by their permeability, and porosity, and their mechanical properties. Thus, diagenetic porosity-reducing processes need to be understood to evaluate reservoir ...
Power Generation by Resonant Self-Actuation
(2023)
Research into micro energy harvesting systems has been driven by the need for self-sustaining, stable power sources for interconnected wireless sensors. Waste heat, particularly at temperatures below 200 °C, presents a ...
Vertrauen in Roboter und dessen Beeinflussbarkeit durch sprachliches Framing
(2022)
Collaborative robots (cobots) enable human-robot interactions in the workplace without safety fences. An appropriate level of trust by employees is critical to the success of these interactions. Anthropomorphic perceptions ...
Arthur Schnitzler und der Film. Bedeutung, Wahrnehmung, Beziehung, Umsetzung, Erfahrung
(2006)
not yet available
Innovative micro-NMR/MRI functionality utilizing flexible electronics and control systems
(2023)
The advantages offered by the flexible electronics and control systems technologies were utilized for tackling the challenges facing two crucial Magnetic Resonance (MR) applications. The first application is in the field ...
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 ...
Emanzipatorisches Wohnen
(2022)
Entwicklung einer Methode zum Einsatz von Reinforcement Learning für die dynamische Fertigungsdurchlaufsteuerung
(2023)
This work aims to develop a method that can reschedule the matrix production in the case of a disruption. For this purpose, different artificial intelligence methods are combined in a novel way. The developed method is ...
Self-learning Anomaly Detection in Industrial Production
(2023)
Configuring an anomaly-based Network Intrusion Detection System for cybersecurity of an industrial system in the absence of information on networking infrastructure and programmed deterministic industrial process is ...
On the Influence of Piecewise Defined Contact Geometries on Friction Dampers
(2023)
This work considers dampers that do not solely focus on a single strategy but instead combine them. The capabilities of conventional dry friction dampers are expanded by taking into account piecewise defined contact ...
60 Jahre Studium Generale und 20 Jahre Angewandte Kulturwissenschaft
(2009)
not yet available
Automatisierte, minimalinvasive Sicherheitsanalyse und Vorfallreaktion für industrielle Systeme
(2022)
Automated defense and prevention measures designed to protect industrial automation and control systems often compromise their real-time processing, resilience and redundancy. Therefore, they need to be performed as ...
Architectural Data Flow Analysis for Detecting Violations of Confidentiality Requirements
(2022)
Software vendors must consider confidentiality especially while creating software architectures because decisions made here are hard to change later. Our approach represents and analyzes data flows in software architectures. ...
Sustainable phosphate management
(2023)
Phosphorus is a crucial element in agriculture to feed the fast-growing global population. Its sustainable supply has ecological, social and human dimensions and it is classified as critical to European industries. On the ...
Technology and readout for scaling up superconducting nanowire single-photon detectors
(2023)
This work presents three advances to scale SNSPDs from few-pixel devices to large detector arrays: atomic layer deposition for the fabrication of uniform superconducting niobium nitride films of few-nanometer thickness, a ...
Proceedings of the 2021 Joint Workshop of Fraunhofer IOSB and Institute for Anthropomatics, Vision and Fusion Laboratory
(2022)
2021, the annual joint workshop of the Fraunhofer IOSB and KIT IES was hosted at the IOSB in Karlsruhe. For a week from the 2nd to the 6th July the doctoral students extensive reports on the status of their research. The ...
Örtliches Auslegungskonzept gegen Pittingversagen bei randschichtgehärteten Zahnrädern
(2023)
The current design of gears against pitting fatigue is based on simple physical models in combination with empirically determined factors. In contrast to that, this work presents a new design concept against pitting fatigue ...
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 ...
Anonymous Point Collection - Improved Models and Security Definitions
(2020)
This work is a comprehensive, formal treatment of anonymous point collection. The proposed definition does not only provide a strong notion of security and privacy, but also covers features which are important for practical ...
Cross-Border Collaboration in Disaster Management
(2022)
In recent years, disaster events spreading across national borders have increased, which requires improved collaboration between countries. By means of an agent-based simulation and an empirical study, this thesis provides ...
Multisensorielle Navigation und Kartierung in schwierigen Bedingungen
(2023)
Robust navigation as well as mapping of the environment are critical for autonomous aerial vehicles. This is especially challenging in poor visual conditions or degraded GNSS. Therefore, this thesis proposes multi-sensor ...
Vernetztes Leben. Soziale und digitale Kulturen
(2006)
The Internet has taken with its unlimited communication structures an outstanding role. In the process of globalization this creates not only the possibility for the integration of access to information independent from ...
Nutzung der keramischen Glühkerze als Sensorelement
(2024)
This work presents methods for using the ceramic glow plug as a sensor element. This means that the ceramic glow plug will not only perform its conventional task as a heating element but will also provide information, such ...
Möglichkeiten und klimarelevante Auswirkungen der stofflichen Nutzung von Kohlenstoffdioxid
(2022)
Energy transition and climate protection cause extensive changes in the German energy supply. In this context, there is an additional interest in the material utilization of carbon dioxide. The possible contributions to ...
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 ...
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 ...
Dynamic Incentives for Optimal Control of Competitive Power Systems
(2022)
This work presents a real-time dynamic pricing framework for future electricity markets. Deduced by first-principles analysis of physical, economic, and communication constraints within the power system, the proposed ...
Proceedings - 33. Workshop Computational Intelligence
(2023)
The workshop proceedings contain the contributions of the 33rd workshop "Computational Intelligence" which will take place from 23.11. - 24.11.2023 in Berlin. The focus is on methods, applications and tools for Fuzzy ...
Multiskalige Modellierung von Lithium-Ionen-Batterien
(2022)
In this work, model approaches for the internal processes of large-format lithium-ion batteries are developed, experimentally parameterized, and validated. The electrochemical losses in the electrode’s microstructure are ...
Bildfolgenbasierte Gewinnung und Nutzung partikelindividueller Bewegungsinformation in der optischen Schüttgutsortierung
(2022)
Sensor-based sorting enables the separation of individual particles from a material stream. In this work, a novel sorting system using an area-scan camera is investigated. The use of high-speed cameras raises exciting ...
High-Precision Automotive Radar Target Simulation
(2023)
Radar target simulators (RTSs) deceive a radar under test (RuT) by creating an artificial environment consisting of virtual radar targets. In this work, new techniques are presented that overcome the rasterization deficiency ...
Active Vision for Scene Understanding
(2021)
Visual perception is one of the most important sources of information for both humans and robots. A particular challenge is the acquisition and interpretation of complex unstructured scenes. This work contributes to active ...
Optimal Scheduling of Combined Heat and Power Generation Considering Heating Grid Dynamics
(2021)
As the share of renewable generation increases in electric grids, the traditionally heat driven operation of combined heat and power plants (CHPs) reaches its limits. Thermal storage is required for a flexible operation ...
Evaluating Architectural Safeguards for Uncertain AI Black-Box Components
(2023)
Although tremendous progress has been made in Artificial Intelligence (AI), it entails new challenges. The growing complexity of learning tasks requires more complex AI components, which increasingly exhibit unreliable ...
A hydrodynamical perspective on the turbulent transport of bacteria in rivers
(2023)
The transport of bacteria in turbulent river-like environments is addressed, where bacterial populations are frequently encountered attached to solids. This transport mode is investigated by studying the transient settling ...
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, ...
Waveguide-Based Photonic Sensors: From Devices to Robust Systems
(2022)
Integrated photonic sensor systems are miniaturized, mass-producible devices that leverage the mature semiconductor fabrication technology and a well-established ecosystem for photonic circuits. This book aims at a holistic ...
Neue Methode zur Bestimmung und Beschreibung der taktfrequenten Stromsteigungen in Drehstromsynchronmaschinen
(2022)
Knowledge of the cycle-frequency changes in the machine currents is of great advantage for many methods of controlling modern, highly utilized electrical machines. But how can these changes in machine currents be reliably ...
NMR micro-detectors tailored for multinuclear and electrochemistry lab-on-a-chip applications
(2022)
This work offers three solutions tailored to specific applications to overcome NMR challenges in the micro-domain. As the first sub-topic of this work, different potential electrode designs, compatible with NMR technique, ...
Structure evolution in tribological interfaces studied by multilayer model alloys
(2020)
Recent studies of deformation mechanisms of metals and alloys pioneer the better investigation of the friction and wear behavior of materials with well-defined initial microstructures. Within this scope, in this work, the ...
Annual Report 2019 of the Institute for Nuclear and Energy Technologies
(2021)
The annual report of the Institute for Nuclear and Energy Technologies of KIT summarizes its research activities and provides some highlights of each working group, like thermal-hydraulic analyses for fusion reactors, ...
Evaluation of the Use of Superconducting 380 kV Cable
(2020)
This study describes the design of superconducting cables for use in the 380 kV three-phase network and explains general aspects of the use of such cables in the extra-high voltage grid. It compares the superconducting ...
Integration von Nachhaltigkeitsaspekten in die operativen und strategischen Prozesse von Kapitalverwaltungsgesellschaften für Immobilienfonds
(2022)
In this work, a proposal for the integration of sustainability aspects into existing risk and portfolio management processes of capital management companies for real estate funds is developed and presented. Here, the ...
Das Mobilitätsskelett
(2023)
Seemingly detached from attractive mobility alternatives in cities the car remains highly relevant in personal mobility. In order to investigate the role of the car, a new survey concept for a multidimensional analysis of ...
Werkzeuge und Konzepte für die Untersuchung und Entwicklung zukünftiger Kfz-Bremssysteme
(2022)
The electrification of the power train as well as the automatisation of driving have a strong influence on chassis for future vehicles. Due to the possibility for recuperation using the electric motor a strong shift in the ...
Detektion und Klassifizierung unterschiedlicher Bedeckungen auf Abschlussscheiben von LiDAR-Sensoren
(2022)
By providing a high resolution at high distances in a broad field of view, LiDAR sensors are a key element in automated driving cars. However, in harsh environmental conditions, particles from rain or dust attach on the ...
Dynamics of Rotors on Refrigerant-Lubricated Gas Foil Bearings
(2021)
The gas foil bearing (GFB) technology is a key factor for the transition to oil-free rotating machinery. Among numerous advantages, GFBs offer the unique ability to be lubricated with working fluids such as refrigerants. ...
Consequences of hydroxyl generation by the silica/water reaction
(2022)
Water diffusing into silica surfaces gives rise for several effectson diffusion behaviour and mechanical properties. Water added to silica glass increases its specific volume so that the silica expands near the surface. ...