Publications
Now showing items 1841-1920 of 2508
Interaktionstechniken für mobile Augmented-Reality-Anwendungen basierend auf Blick- und Handbewegungen
(2022)
Intuitive interaction techniques are essential for mobile augmented reality systems. For implicit interaction, this work presents techniques for automatic eye movement analysis and visualization. In the context of explicit ...
Der grundrechtliche Schutz der digitalen Identität unter Berücksichtigung von Datenschutz- und IT-Sicherheitsrecht
(2022)
The digital identity is the essential human data interface when interacting on the Internet or with IT systems to enable the multitude of services. No platform can be used without creating a (at least temporary) data ...
Prospective Life Cycle Assessment of High-Temperature Superconductors for Future Grid Applications
(2022)
High-temperature superconductors have distinct advantages compared to conventional conductors. Below their critical temperature, superconductors have immeasurably low ohmic losses. To maintain the superconducting state, ...
A First 2 MW-Class (136)/170/204 GHz Multi-Frequency Gyrotron Pre-Prototype for DEMO: Design, Construction and Key Components Verification
(2023)
A gyrotron is used in magnetically confined plasma experiments for heating, current drive, plasma stabilization and plasma diagnostics. This work presents the first design and construction of a multi-frequency / multi-purpose ...
Decentralized Scheduling of Discrete Production Systems with Limited Buffers
(2023)
Modern production systems have become more flexible and agile. For them, a suitable control and planning method is needed. Agent-based systems offer the required characteristics. The contributions of these work are a ...
Einflusswirkungen auf das Geschäftsmodell Carsharing – unter Berücksichtigung des Stakeholder-Ansatzes
(2023)
Carsharing kann wesentlich zur Reduzierung privater PKW beitragen. Dennoch verharrt es in der Nische. Die vorliegende Arbeit sucht nach den Gründen des Nischendaseins und dies mit Fokus auf unterschiedliche Stakeholdergruppen. ...
Methode zur Ermittlung optimaler Rad- und Reifendimensionen in der frühen Entwicklungsphase von Personenkraftwagen
(2024)
In the context of the present work methods are developed, which allow the statistical estimation of feasible ranges of functional tyre characteristics for any combination of rim and tyre dimension under different operating ...
Automated Mode Recovery and Electronic Stability Control for Wendelstein 7-X Gyrotrons
(2024)
Magnetic confinement fusion relies on plasma heating and plasma control using gyrotron oscillators providing at megawatt power levels. The operational reliability decreases when operating at the performance limits due to ...
Timber Engineering
(2017)
This comprehensive book provides in-depth knowledge and understanding of design rules according to Eurocode 5. It is based on the first edition of the STEP (Structural Timber Education Programme) series, which was prepared ...
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, ...
Numerische Modellierung und Simulation von bleifreien Relaxor-Ferroelektrikum-Kompositen
(2023)
The electromechanical behavior of two new sodium bismuth titanate based lead-free ferroelectric materials as well as bilayer composites are investigated in experiments and numerical simulations. For the Finite-Element-Method, ...
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 ...
Dynamisches Bremsverhalten des Reifen-Fahrwerk-Systems
(2022)
In the frame of this research work, a complete tyre suspension brake system, which includes a McPherson strut and a modified ABS hydro aggregate is analyzed, developed and optimized on the inner drum test bench and studied ...
Systematic Approaches to Advanced Information Flow Analysis – and Applications to Software Security
(2023)
I report on applications of slicing and program dependence graphs (PDGs) to software security. Moreover, I propose a framework that generalizes both data-flow analysis on control-flow graphs and slicing on PDGs. This ...
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 ...
Modeling Backscattering Behavior of Vulnerable Road Users Based on High-Resolution Radar Measurements
(2023)
During the evolvement of autonomous driving technology, obtaining reliable 3-D environmental information is an indispensable task in approaching safe driving. The operational behavior of automotive radars can be precisely ...
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 ...
Microstructure generation and micromechanical modeling of sheet molding compound composites
(2022)
We introduce an algorithm that allows for a fast generation of SMC composite microstructures. An exact closure approximation and a quasi-random orientation sampling ensure high fidelity. Furthermore, we present a modular ...
Compaction and cementation controls on reservoir quality in Buntsandstein red beds
(2022)
Reservoir quality in fluvial siliciclastic rocks is variable. Permeability is influenced by micron-scale grain coatings or bedding style on the m-/km-scale. Outcrops allow the analysis of depositional environments and ...
Application of diffractive lens arrays in confocal microscopy
(2022)
Diffractive lens arrays are proposed in this work for application in reflected-light confocal microscopes. They have overcome the limitations between fields of view and resolution of traditional objectives. Experiments of ...
Plasmonic-Organic and Silicon-Organic Hybrid Modulators for High-Speed Signal Processing
(2024)
High-speed electro-optic modulators in silicon platform are introduced and experimentally verified. The devices rely on plasmonic and photonic slot waveguides and are combined with efficient organic electro-optic materials. ...
Probabilistic Models and Inference for Multi-View People Detection in Overlapping Depth Images
(2022)
In this work, the task of wide-area indoor people detection in a network of depth sensors is examined. In particular, we investigate how the redundant and complementary multi-view information, including the temporal context, ...
Peptoide als potenzielle antibiotische Wirkstoffe gegen multiresistente Bakterien
(2024)
There are fewer and fewer treatment options available for treating multi-resistant germs. In this work, peptoids were investigated as a possible class of substances for the therapeutic application of infections with ...
Langzeitstabilität der Innendrücke von Kavernen benachbarter MEMS-Sensoren auf Siliziumbasis
(2022)
Due to a trend towards miniaturization of many MEMS devices and thus also the cavity volumes of inertial sensors, the influence of slight changes in the damping atmosphere in sensor cavities on the reliability of the sensors ...
Symbiosen, Rituale, Routinen
(2010)
not yet available
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 ...
Development of high-temperature superconductor cables for high direct current applications
(2021)
A design process for HTS DC cables was developed for high current applications. Based on the design process, a 35 kA HTS DC cable demonstrator was developed. The superconducting elements of the demonstrator were manufactured ...
Bewertungsmodell zur Evaluation hochauflösender, lichtbasierter Fahrerassistenzsysteme
(2020)
Modern headlights are able to project any desired symbol directly onto the street. Feasible applications are driver assistance, information or communication with other traffic participants. Besides all the possibilities ...
Manchester Ship Canal
(2021)
This book investigates how urban/rural patterns provide differing conditions for living and working. The project is to read and analyse these urban/rural settlement structures and provide insight into the patterns of living ...
Auf der Suche nach der eigenen Alma Mater
(2022)
The book provides a thorough overview of Estonians and other Estonian-born students who studied at various European universities of technology before the Second World War. In addition to Saint Petersburg and Riga, Gdansk, ...
Auslegung von Verstärkungen ermüdungsgeschädigter Stahlbauteile mit aufgeklebten Faserverbundwerkstoffen
(2024)
Within the scope of the present work, extensive experimental and numerical investigations are carried out on the crack propagation behaviour in steel plates under cyclic loading, which have been reinforced with adhesively ...
Proceedings of the 2022 Joint Workshop of Fraunhofer IOSB and Institute for Anthropomatics, Vision and Fusion Laboratory
(2023)
In August 2022, Fraunhofer IOSB and IES of KIT held a joint workshop in a Schwarzwaldhaus near Triberg. Doctoral students presented research reports and discussed various topics like computer vision, optical metrology, ...
Forum Bildverarbeitung 2022
(2022)
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 ...
2000 Revisited - Visionen der Welt von morgen im Gestern und Heute
(2020)
Visions of the future have a performative effect as they trigger political debates and articulate societal grievances, hopes and fears. Time horizons envisaged in them – such as the year 2000 – often become synonymous with ...
Methodik zur effizienten Applikation automatisierter Fahrfunktionen
(2024)
The work introduces a method for an efficient calibration of automated driving functions. The method is based on an initial limitation of the relevant parameter space for the optimization of function behaviour. Furthermore, ...
Consistent View-Based Management of Variability in Space and Time
(2022)
Developing variable systems faces many challenges. Dependencies between interrelated artifacts within a product variant, such as code or diagrams, across product variants and across their revisions quickly lead to ...
Techniknostalgie und Retrotechnologie
(2010)
not yet available
Bildende Künstler im Fotoporträt
(2022)
To define the social interactions of a photographer and the portrayed artist as friendship is a recurring topos in art. However, only in some instances can the photographic portrait fulfill the concrete visibility represented ...
Quantum Sensing Experiments with Superconducting Qubits
(2021)
Quantum sensing is a vast and emerging field enabling in-situ studies of quantum systems and hence the development of quantum hybrid systems. This work creates the fundament of direct superconducting-magnetic hybrid systems ...
Microstructure modeling and crystal plasticity parameter identification for predicting the cyclic mechanical behavior of polycrystalline metals
(2023)
Computational homogenization permits to capture the influence of the microstructure on the cyclic mechanical behavior of polycrystalline metals. In this work we investigate methods to compute Laguerre tessellations as ...
QoS-Based Optimization of Runtime Management of Sensing Cloud Applications
(2022)
IoT applications perceive and interact with the environment via smart devices and cloud services. When operating such applications one is faced with the challenge of configuring the smart devices and the cloud services in ...
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. ...
Dynamische Charakteristik von Eisenbahnrahmenbrücken
(2024)
Railway bridges are subject to dynamic loads caused by train crossings. To assess the risk of resonance, the dynamic properties are analysed using FE simulations. The identification of the dynamic system often proves to ...
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 ...
Deep material networks for efficient scale-bridging in thermomechanical simulations of solids
(2023)
We investigate deep material networks (DMN). We lay the mathematical foundation of DMNs and present a novel DMN formulation, which is characterized by a reduced number of degrees of freedom. We present a efficient solution ...
Indirekte Schätzung des Fahrbahnnässegrads zur Detektion von gefährlichen Fahrzuständen
(2023)
An estimation of the road wetness level supports the driver as well as the vehicle to maneuver safely. This study presents the fundamentals of a system that uses structure-borne sound measurements at various positions on ...
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 ...
Assistenzsysteme zur Reduktion des Schädigungsverhaltens von Komponenten einer mobilen Arbeitsmaschine
(2021)
In this work, modular damage reduction assistance systems are investigated. Identification modules provide information about the current driving and working state, the machine operator, the bulk material mass and system ...
Fiber-dependent injection molding simulation of discontinuous reinforced polymers
(2022)
This work presents novel simulation techniques for injection molding of fiber reinforced polymers. These include approaches for anisotropic flow modeling, hydrodynamic forces from fluid on fibers, contact forces between ...
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 ...
Roboter für Assistenzfunktionen
(2024)
The performance and flexibility of robot technologies make it possible to bring robots to everyday life. This creates many challenges: safety, legal regulations, reliability, reusability, and business models must be ...
Datensouveränität für Betroffene über persönliche medizinische Daten durch technische Umsetzung einer datenschutzgerechten Forschungsplattform
(2024)
Digitalization in the healthcare sector is progressing more and more.
This is leading to an increase in data that is available for secondary uses such as research.
Due to regulation, there is a tension between research ...
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 ...
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 ...
Der Spröd-duktil-Übergang in ultrafeinkörnigem Wolfram
(2023)
High brittle-ductile transition temperatures preclude the use of conventionally manufactured tungsten (W) as a structural material. Ultrafine grained (UFG) W materials, however, exhibit the brittle-ductile transition at ...
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 ...
Diffusionseigenschaften von Nickel in einer Festoxid-Brennstoffzelle
(2022)
In this work, thermal grooving experiments were performed on anode microstructures, Ni polycrystals and Ni bicrystals. The grain boundary grooves were measured by means of an AFM. The results provide for the first time ...
Vibroakustische Analyse eines elektrischen Radnabenmotors und Optimierung durch geeignete Steuerungsansätze
(2023)
This work deals with the mechanisms of disturbing noises at the electric wheel hub motor and describes a multiphysical model which simulates them. From this, countermeasures are derived and evaluated. A vibroacoustical ...
Fiber Orientation Tensors and Mean Field Homogenization
(2023)
Effective mechanical properties of fiber-reinforced composites strongly depend on the microstructure, including the fibers' orientation. Studying this dependency, we identify the variety of fiber orientation tensors up to ...
A computational multi-scale approach for brittle materials
(2023)
Materials of industrial interest often show a complex microstructure which directly influences their macroscopic material behavior. For simulations on the component scale, multi-scale methods may exploit this microstructural ...
OCM 2023
(2023)
The state of the art in the optical characterization of materials is advancing rapidly. New insights have been gained into the theoretical foundations of this research and exciting developments have been made in practice, ...
Methode zur Bewertung der Zuverlässigkeit der elektrischen Energieversorgung in der automobilen Vorentwicklung
(2023)
With the introduction of highly automated assistance systems in passenger cars, the requirements for the reliability of the electrical power supply increase significantly. In this thesis, a method for evaluating the ...
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 ...
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 ...
Proceedings of the 15th International Workshop on Beryllium Technology (BeWS-15)
(2023)
The 15th International Workshop on Beryllium Technology (BeWS-15) was held as a joint event combining BeWS-15 and industrial forum BeYOND-IX on September 14-15, 2022 in Karlsruhe, Germany with great success as a hybrid ...
Development of a CO2e quantification method and of solutions for reducing the greenhouse gas emissions of construction machines
(2022)
This work focuses on the development of a quantification method for GHG (CO2e) emissions from construction machines. The method considers CO2e reduction potentials in the time past-present–future, through influencing factors ...
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. ...
Analyse und Modellbildung von PEM-Brennstoffzellen mittels elektrochemischer Impedanzspektroskopie
(2024)
This work presents a physically motivated model for predicting the current/voltage behavior of PEM fuel cells. Extensive impedance measurements and DRT analyses were used to identify and quantify all loss processes. The ...
Zur Wechselwirkung zwischen Fahrbahntextur und Laufstreifenmischung von Pkw-Reifen
(2023)
This work aims to gain an understanding of the interactions between tread compounds and surface texture on dry and wet road conditions. If, for example, a corundum surface, which is very well-established in the tire industry, ...
Welt als ideales Artefakt
(2022)
The construction of artificial, ideal worlds as habitats and their history.
Perspectives on warm conveyor belts - sensitivities to ensemble configuration and the role for forecast error
(2023)
Warm conveyor belts (WCBs) are weather systems that substantially modulate the large-scale extratropical circulation. As they can amplify forecast errors and project them onto the Rossby wave pattern, they are of high ...
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 ...
Innovative tools and design strategies
(2023)
The research deals with a question about Architecture and its design strategies, combining historical information and digital tools. Design strategies are historically defined, they rely on geometry, context, building ...
Integrierte Projektabwicklung mit Mehrparteienverträgen
(2024)
In the context of IPA projects, project participants generally try to create a system that aligns the individual interests of the participants in such a way that opportunistic behavior of the participants does not have ...
Thermische Untersuchungen an Laser-aktivierten Leuchtstoff-Systemen mit dynamischer Leuchtdichteverteilung
(2023)
The simulation of ceramic phosphors by means of the diffusion approximation of the radiation transport equation is extended from rotationally symmetrical cases to general, three-dimensional problems. The phosphor is simulated ...
Deep Learning based Vehicle Detection in Aerial Imagery
(2022)
This book proposes a novel deep learning based detection method, focusing on vehicle detection in aerial imagery recorded in top view. The base detection framework is extended by two novel components to improve the detection ...
Einfluss atmosphärischer Umgebungsbedingungen auf den Lebenszyklus konvektiver Zellen in der Echtzeit-Vorhersage
(2022)
Precise warnings of the accompanying effects of thunderstorms are essential for preventive measures. The dynamic development of thunderstorm cells often leads to a large discrepancy between the real-time forecasts (nowcasts) ...
Local Probing of a Superconductor’s Quasiparticles and Bosonic Excitations with a Scanning Tunnelling Microscope
(2023)
Complementary to scattering techniques, scanning tunnelling microscopy provides atomic-scale real space information about a material's electronic state of matter. State-of-the-art designs of a scanning tunnelling microscope ...
Thermodynamik von Kobaltoxid Anodenmaterialien für Lithium-Ionen-Batterien und ihr elektrochemisches Verhalten
(2020)
A thermodynamic approach is used to gain new insights into reaction mechanism and correlations between electrochemical and thermodynamic properties of conversion electrodes in the material system Li-Co-O. For this purpose, ...
Elektromobile Flotten im lokalen Energiesystem mit Photovoltaikeinspeisung unter Berücksichtigung von Unsicherheiten
(2021)
In this book, a model is developed which can be used to identify the load shifting potential of electric vehicle fleets considering the integration of photovoltaic generation and uncertainty. Different approaches using ...