Publications
Now showing items 2461-2508 of 2508
Lebensdauer von LED-Baugruppen
(2022)
This work deals with the material degradation of LED package materials and their contribution to degradation of the whole LED device. The occurring failure modes within the LED package are described and predicted by the ...
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 ...
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 ...
Hochgenaue und robuste odometriebasierte Lokalisierung in einem Parkvorgang
(2025)
As part of this work, a special vehicle movement model is being developed for future parking applications. It uses standard sensor technology and requires hardly any additional computing power. An adaptive localization ...
Facility Location Planning in Relief Logistics: Decision Support for German Authorities
(2022)
The delivery of essential goods to beneficiaries in the aftermath of a disaster is one of the main objectives of relief logistics. Thereby, the present work aims to improve relief logistics by improving the location selection ...
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. ...
Everlasting Energy
(2025)
In this volume, colleagues and friends of Prof. Dr.-Ing. Robert Stieglitz, who died suddenly and unexpectedly on 6 December 2023, pay tribute to his life and his extraordinary achievements as an internationally recognised ...
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 ...
Belief State Planning for Autonomous Driving
(2021)
This work presents a behavior planning algorithm for automated driving in urban environments with an uncertain and dynamic nature. The algorithm allows to consider the prediction uncertainty (e.g. different intentions), ...
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 ...
Herstellung dünner Folien aus Lithium-Lanthan-Titanat zur Anwendung als Festkörperelektrolyt
(2022)
In this work the production of a thin film of lithium lanthanum titanate by tape casting for use in a lithium ion solid state battery is described. The influence of the composition of the slip on its flow properties is ...
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, ...
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 ...
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 ...
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 ...
Untersuchung und Modellierung des Haltezeiteinflusses auf die zyklische Entfestigung ferritisch-martensitischer Stähle
(2021)
Ferritic-martensitic steels are established structural materials for high-temperature applications. However, these steels show characteristic softening under cyclic loading. Based on a comprehensive mechanical characterization, ...
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) ...
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 ...
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 ...
Performance Analysis and Capacity Planning of Multi-stage Stochastic Order Fulfilment Systems with Levelled Order Release and Order Deadlines
(2022)
Order fulfilment systems are forced to manage a volatile customer demand while meeting customer-required short order deadlines. To handle these challenges, we introduce the Strategy of Levelled Order Release (LOR) for ...
Hybrid photonic assemblies based on 3D-printed coupling structures
(2023)
Photonic integrated circuits (PIC) become increasingly important for numerous applications. Mass production of PIC has become widely available, but large-volume low-cost photonic packaging still represents a challenge. ...
Tragfähigkeit mechanischer und geklebter Verbindungsmittel in Buchenfurnierschichtholz
(2021)
Laminated veneer lumber made of beech shows a three times higher tensile strength as glued laminated timber made from softwood. Due to the strength properties laminated veneer lumber made of beech is an ideal material for ...
Phase-field Modeling of Phase Changes and Mechanical Stresses in Electrode Particles of Secondary Batteries
(2021)
Most storage materials exhibit phase changes, which cause stresses and, thus, lead to damage of the electrode particles. In this work, a phase-field model for the cathode material NaxFePO4 of Na-ion batteries is studied ...
10. Fachtagung Hybride und energieeffiziente Antriebe für mobile Arbeitsmaschinen
(2025)
This book contains the conference proceedings to the lectures of the 10th symposium on 19th February 2025 in Karlsruhe. The state of research and new developments in the field of drive technology for mobile working machines ...
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 ...
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 ...
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 ...
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 ...
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 ...
Silicon-organic hybrid electro-optic modulators for high-speed communication systems
(2024)
Silicon-organic hybrid (SOH) electro-optic modulators combining silicon photonic structures with organic EO materials are investigated. This book addresses aspects that are specifically relevant for the use of SOH modulators ...
Multiscale Modeling of Curing and Crack Propagation in Fiber-Reinforced Thermosets
(2024)
During the production of fiber-reinforced thermosets, the resin material undergoes a reaction that can lead to damage. A two-stage polymerization reaction is modeled using molecular dynamics and evaluations of the system ...
Einfluss der Kompaktierung auf die Elektrodenmikrostruktur und elektrochemische Performance bei Lithium-Ionen-Zellen
(2021)
In this work, the influence of compaction of LiNi1/3Co1/3Mn1/3O2 and graphite-based electrodes is characterized electrochemically at current rates between C/20 and 5C in a wide porosity range from uncompacted states to ...
Efficient fast Fourier transform-based solvers for computing the thermomechanical behavior of applied materials
(2022)
The mechanical behavior of many applied materials arises from their microstructure. Thus, to aid the design, development and industrialization of new materials, robust computational homogenization methods are indispensable. ...
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 ...
Wireless Terahertz Communications: Optoelectronic Devices and Signal Processing
(2021)
Novel THz device concepts and signal processing schemes are introduced and experimentally confirmed. Record-high data rates are achieved with a simple envelope detector at the receiver. Moreover, a THz communication system ...
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 ...
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 ...
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. ...
Grundlagenuntersuchungen an intrinsisch gefertigten lasttragenden FVK/Metall-Hybridträgern
(2022)
Both types of hybrids are tested and compared in terms of their mechanical properties in quasi-static, dynamic and cyclic three-point bending tests in reference to their damage behaviour. The intrinsic hybrid structures ...
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 ...
Multi-field modeling and simulation of fiber-reinforced polymers
(2023)
This work proposes a new numerical approach for analyzing the behavior of fiber-reinforced materials, which have gained popularity in various applications. The approach combines theories and methods to model the fracture ...
Distributed Optimization with Application to Power Systems and Control
(2022)
Mathematical optimization techniques are among the most successful tools for controlling technical systems optimally with feasibility guarantees. Yet, they are often centralized—all data has to be collected in one central ...
Reservoir quality controls and reservoir modelling of continental to transitional shallow marine sedimentary basins of Southern Nigeria
(2023)
The object-based stochastic approach in facies modelling is important in the construction of geologically consistent 3-D reservoir models and in constraining the distribution of petrophysical properties. Tortuosity factor, ...
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 ...
Emanzipatorisches Wohnen
(2022)
This monograph illuminates Myra Warhaftig's (1930-2008) architectural contribution to the 1984/87 International Building Exhibition in Berlin. The focus is on the life and work of a Jewish female architect in Germany, in ...
Aufmerksamkeitslenkung mithilfe Innenraumbeleuchtung im Automobil
(2020)
This work deals with the investigation and development of a new light function with the help of interior lighting in automobiles. The interior lighting installed in current vehicles is enhanced by an animation, thereby ...
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. ...