Publications
Now showing items 1-100 of 402
A Contribution to Friction in Timber Connections
(2025)
The load-carrying capacity of connections with inclined screws can be increased due to friction in the shear plane. Surface modifications to increase the friction were investigated. Friction tests showed increased friction ...
On multi-scale modeling of fatigue in short glass fiber reinforced thermoplastics
(2025)
This work covers the topic of micromechanical modeling of the elastic and fatigue behavior of short glass fiber reinforced thermoplastic composites (SFRTs). A novel algorithm extracts microstructural data from x-ray ...
Berufliche Bildung in Deutschland
(2008)
not yet available
Worte am Werk
(2008)
The focus of this study on Wittgenstein's work is on the connection between language and world. Whereas this issue is of high relevance in the Tractatus, PU seems to unmask it as meaningless. It is widely assumed that the ...
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 ...
Understanding Degradation Phenomena in Solid-Oxide Fuel-Cell Anodes by Phase-Field Modeling and Analytics
(2024)
The current work analyzes degradation effects in solid-oxide fuel cell anodes with the phase-field method. A model extension for interface diffusion is formulated and calibrated. Large-scale 3D-simulations provide interesting ...
Human-Machine Cooperative Decision Making
(2022)
The research reported in this thesis focuses on the decision making aspect of human-machine cooperation and reveals new insights from theoretical modeling to experimental evaluations: Two mathematical behavior models of ...
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, ...
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 ...
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 ...
Schlüsselqualifikationen für Studium, Beruf und Gesellschaft
(2009)
not yet available
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, ...
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 ...
Thermodynamically consistent space-time discretization of non-isothermal mechanical systems in the framework of GENERIC
(2022)
The present work addresses the design of structure-preserving numerical methods that emanate from the general equation for non-equilibrium reversible-irreversible coupling (GENERIC) formalism. Novel energy-momentum (EM) ...
Hybride und energieeffiziente Antriebe für mobile Arbeitsmaschinen
(2023)
This book contains the conference proceedings to the lectures of the 9th symposium on 28th February 2023 in Karlsruhe. The state of research and new developments in the field of drive technology for mobile machines are ...
State-of-the-Art of High-Power Gyro-Devices
(2024)
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, Millimeter, and Terahertz Waves, 41, No. ...
Case-Based Decision Support for Disaster Management
(2020)
Disasters are characterized by severe disruptions of the society’s functionality and adverse impacts on humans, the environment, and economy that cannot be coped with by society using its own resources. This work presents ...
Chip-scale optical frequency comb sources for terabit communications
(2022)
To keep up with the ever-increasing data transmission speed needs, data center interconnects are scaling up to provide multi-Tbit/s connectivity. These links require a high number of WDM channels, while the associated ...
Verbinder aus Kunstharzpressholz mit erhöhter Reibung in der Scherfuge
(2023)
For the first time new connectors were realized using densified veneer wood (DVW). Initially, the DVW surface was modified to increase the friction between the connector and the timber part in the shear plane and thus ...
Überwachte Methoden für die spektrale Entmischung mit künstlichen neuronalen Netzen
(2023)
In this work, artificial neural networks trained in a supervised manner for spectral unmixing are investigated. For this purpose, a suitable network architecture is determined first. After that, the focus lies on the ...
Ein Beitrag zur Auslegung tragender Klebverbindungen im Fassadenbau
(2022)
This work describes investigations into the design of load-bearing bonded joints facade construction. The core element is the analysis of the time- and temperature-dependent load-bearing behavior of bonded joints. For this ...
New Type of sub-THz Oscillator and Amplifier Systems Based on Helical-Type Gyro-TWTs
(2023)
This work presents the development of a new sub-THz source for the generation of trains of coherent high-power ultra-short pulses at 263 GHz via passive mode-locking of two coupled helical gyro-TWTs. For the first time, ...
Forum Bildverarbeitung 2022
(2022)
Allgemeine Technologie
(2009)
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 ...
Building Transformation Networks for Consistent Evolution of Interrelated Models
(2022)
Complex software systems are described with multiple artifacts, such as code, design diagrams and others. Ensuring their consistency is crucial and can be automated with transformations for pairs of artifacts. We investigate ...
Fragilitätsuntersuchungen und Schadensklassifikationen im Erdbebenfall auf Basis von luftgestützten Aufnahmen
(2025)
Following seismic events, there is often a lack of damage data, which impedes the rescue of lives and the effective deployment of resources. The objective of this thesis is to make an interdisciplinary contribution to the ...
Laserbasierte Verschaltung und Strukturierung von Perowskit-Solarmodulen
(2025)
This work explores laser-based interconnection and structuring of perovskite solar modules for industrial production and scaling. The goal is to develop efficient processes for high-performance modules, including transparent ...
Constrained-layer damping in hybrid fibre metal elastomer laminates and its tolerance to damage
(2025)
This work presents experimental, analytical and numerical methods for predicting structural behaviour as well as damping capabilities of hybrid fibre metal elastomer laminates (FMELs), particularly for the assessment and ...
OCM 2025 - 7th International Conference on Optical Characterization of Materials
(2025)
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, ...
Karlsruher Tage 2024 - Holzbau : Forschung für die Praxis, Karlsruhe, 10. Oktober - 11. Oktober 2024
(2024)
Topics are the activation of friction in connections and the use of long screws, which lead to positional imperfections. Design and execution of eccentric holes or holes arranged in groups and solutions for the realisation ...
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 ...
Analyse und Separation polyphoner Musiksignale
(2024)
In this work, improved signal analysis approaches for polyphonic music recordings, based on artificial neural networks, are presented. These approaches enable an objective estimation of the recording quality of amateur ...
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 ...
A Framework for Decentralized Stabilization in Networked Energy Systems
(2024)
This work proposes a passivity-based framework for the decentralized stabilization of networked energy systems. Its key innovation are equilibrium-independent, passivity-based conditions for modularly inferring asymptotic ...
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, ...
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 ...
13. Kolloquium Mobilhydraulik : Karlsruhe, 8./9. Oktober 2024
(2024)
The manuscript “13th Mobile hydraulic colloquium” contains the collected contributions to the presentations of the event of the same name, which took place on the 8th/9th October 2024 in Karlsruhe. In nine articles the ...
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 ...
Multi-Physics Modelling towards the Stabilization of PAN Fibers with Microwaves Based on Experimental Data
(2024)
High energy demand is one reason for high costs of carbon fibers. One option to decrease them is to use microwave heating instead of conventional heating. In this work, steps towards a microwave assisted process during the ...
Proceedings - 34. Workshop Computational Intelligence: Berlin, 21.-22. November 2024
(2024)
This conference proceedings volume contains the contributions from the 34th ""Computational Intelligence"" workshop, held in Berlin from November 21 to November 22, 2024. The main focus areas are methods, applications, and ...
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 ...
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. ...
Refraktive Multifokusröntgenlinsen und Hartmann-Shack-Sensoren
(2024)
Compound refractive X-ray lenses (CRLs) have an absorption-limited numerical aperture. In this work, an array of CRLs with slightly inclined optical axes is used to circumvent this limitation in full-field microscopy at ...
On direct and inverse problems related to longitudinal impact of non-uniform elastic rods
(2021)
The impact of two non-uniform elastic rods is considered and a recursive method was developed that solves the inverse problem: Find the location-dependent impedance function of the impacting rod that generates a prescribed ...
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, ...
Zum Dämpfungsverhalten viskoelastischer Klebverbindungen im Stahlbau
(2024)
In this work, the damping properties of adhesively bonded joints are investigated numerically, experimentally and analytically. In numerical investigations on steel structures, the potential of bonded joints to optimise ...
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 ...
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 ...
Dynamical Modeling and Control of Multiphase Heat Transport Systems Based on Loop Heat Pipes
(2022)
Effective heat transport systems in aerospace are based on multiphase loop heat pipes (LHPs). For a precise thermal control of the electronics, electrical heaters are additionally used to control the operating temperature ...
Transactive Control of Coupled Electric Power and District Heating Networks
(2023)
The design of approaches for future market-based energy network operation faces the technical challenge of needing to coordinate a vast number of network participants spatially and temporally, in order to balance energy ...
Energy-efficient, scalable and modular industrial microwave applicator for high temperature alkaline hydrolysis of PET
(2023)
Microwave-assisted alkaline hydrolysis of PET can be 20 times faster and at lower temperatures. This work presents a novel industrial microwave applicator at 2.45 GHz with homogeneous distribution to support this reaction, ...
Entwicklung eines Entscheidungsunterstützungssystems (EUS) für die Auswahl von Verfahren zur Instandsetzung von Einkammerschleusen für die Schifffahrt unter laufendem Betrieb
(2023)
A two-stage decision support system (DSS) was developed for the selection of maintenance procedures for single-chamber locks while they are in operation. The Choosing by Advantages Decision Making System (CBA) tabular ...
Kleinskalige Charakterisierung der Fest-Flüssig-Trennung und Betrachtung des Scherbruchs von Proteinkristallen
(2022)
Proteins are macromolecules composed of amino acids that are essential for a large number of biological metabolic processes. Proteins are also used in technical applications, for example to catalyze reactions. The objective ...
Convective precipitation simulated with ICON over heterogeneous surfaces in dependence on model and land-surface resolution
(2021)
The impact of land-surface properties like vegetation, soil type, soil moisture, and the orography on the atmosphere is manifold. These features determine the evolution of the atmospheric boundary layer, convective conditions, ...
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 ...
Verantwortung in Technik und Ökonomie
(2009)
not yet available
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 ...
Simulation of the thermoforming process of UD fiber-reinforced thermoplastic tape laminates
(2021)
In this work, initially, the requirements on a simulation model of the non-isothermal stamp forming process of unidirectional fiber-reinforced, and thermoplastic tape laminates are investigated experimentally. On this ...
Spannungseinprägende aktive Filter zur Kompensation der Stromverzerrungen von Netzstromrichtern
(2023)
In this thesis, the use of voltage-source active filters for harmonic mitigation of grid-connected power converters is proposed. Based on a modeling of this novel converter configuration, an operating strategy is derived ...
Numerical prediction of curing and process-induced distortion of composite structures
(2021)
Fiber-reinforced materials offer a huge potential for lightweight design of load-bearing structures. However, high-volume production of such parts is still a challenge in terms of cost efficiency and competitiveness. ...
On the Electro-Chemo-Mechanical Coupling in Solid State Batteries and its Impact on Morphological Interface Stability
(2021)
Solid state batteries with a lithium metal electrode are considered the next generation of high energy battery technology. Unfortunately, lithium metal is prone to harmful protrusion or dendrite growth which causes dangerous ...
Entwicklung von Modellen zur speichergestützten Versorgung mit regenerativen Energien in Inselnetzen
(2022)
The proposed method for the configuration of renewably powered energy supply systems as isolated grids backed by energy storage technology and based on statistical models shows the economic viability of such a system. The ...
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 ...
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 ...
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 ...
Technik und Kultur
(2010)
not yet available
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 ...
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 ...
A Reference Structure for Modular Model-based Analyses
(2024)
In this work, the authors analysed the co-dependency between models and analyses, particularly the structure and interdependence of artefacts and the feature-based decomposition and composition of model-based analyses. ...
Image registration between MRI and spot mammograms for X-ray guided stereotactic breast biopsy
(2024)
This work proposes a novel method for a matching tool between MRI and spot mammograms. Two registration methods are used : a biomechanical model based registration between MRI and full X-ray mammograms, followed by an image ...
Distributed Planning for Self-Organizing Production Systems
(2024)
In dieser Arbeit wird ein Ansatz entwickelt, um eine automatische Anpassung des Verhaltens von Produktionsanlagen an wechselnde Aufträge und Rahmenbedingungen zu erreichen. Dabei kommt das Prinzip der Selbstorganisation ...
Herstellung und Charakterisierung von Nb- und Ta-Al₂O₃-Verbundwerkstoffen für Hochtemperaturanwendungen
(2024)
Newly designed coarse-grained Nb-/Ta-Al₂O₃ refractory composite materials with multi-scale structure are potential candidates for high-temperature applications. As a basis, this work deals with the synthesis of composites ...
Worte am Werk
(2008)
not yet available
Konvolutionäre neuronale Netze in der industriellen Bildverarbeitung und Robotik
(2022)
In the first part of this dissertation, a framework for the design of a CNN for FPGAs is presented, consisting of a preprocessing algorithm, an augmentation technique, a custom quantization scheme and a pruning step of the ...
Proceedings of the 2019 Joint Workshop of Fraunhofer IOSB and Institute for Anthropomatics, Vision and Fusion Laboratory
(2020)
In 2019 again, the annual joint workshop of the Fraunhofer IOSB and the Vision and Fusion Laboratory of the Karlsruhe Institute of Technology took place. The doctoral students of both institutions presented extensive reports ...
Entwicklung eines Messsystems zur modalbasierten Schädigungsanalyse von Brückenüberbauten
(2022)
Bridges are key components of infrastructure networks, which are the basic prerequisite for a prospering economy. Regarding maintenance scheduling, profound knowledge of the current bridge condition is of high interest. ...
Parameter- und Ordnungsidentifikation von fraktionalen Systemen mit einer Anwendung auf eine Lithium-Ionen-Batteriezelle
(2022)
Model-based methods are increasingly being used for a safe and efficient operation of battery cells. For modeling battery cells, fractional models which are characterized by non-integer derivative orders have become ...
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 ...
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 ...
Pushing the KIT 2 MW Coaxial-Cavity Short-Pulse Gyrotron Towards a DEMO Relevant Design
(2021)
Magnetic fusion is one approach to generate thermonuclear fusion power in an environmental friendly way. The Electron Cyclotron Resonance Heating is considered as the major concept for startup, heating and control of the ...
Power, policies, and algorithms - technologies of surveillance in the European border surveillance regime
(2022)
This work analyses the emergent European border surveillance regime as part of the European border regime/migratory regime and the power structures this technologogical regime is embedded into, is reproducing and creating. ...
Werkzeug- und Prozessentwicklung des Roll-to-Roll-Hochdurchsatzverfahrens zur kontinuierlichen, großflächigen Mikrostrukturierung
(2022)
This work describes the set-up of a roll-to-roll (R2R) system and the development of a specific microstructuring process for a variety of different materials ranging from high-performance polymers and low-melting-point ...
