Publications
Now showing items 361-420 of 466
Adding nonlinearity to an electromagnetic-magnonic quantum hybrid device
(2020)
In this book, hybrid systems based on yttrium-iron-garnet (YIG), three dimensional microwave cavity resonators, and superconducting transmon qubits, are investigated by continuous wave and pulsed microwave spectroscopy. ...
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 ...
Mesoscale simulation of the mold filling process of Sheet Molding Compound
(2022)
Sheet Molding Compounds (SMC) are discontinuous fiber reinforced composites that are widely applied due to their ability to realize composite parts with long fibers at low cost. A novel Direct Bundle Simulation (DBS) method ...
Probabilistic Parametric Curves for Sequence Modeling
(2022)
This work proposes a probabilistic extension to Bézier curves as a basis for effectively modeling stochastic processes with a bounded index set. The proposed stochastic process model is based on Mixture Density Networks ...
Consequences of hydroxyl generation by the silica/water reaction
(2022)
Water diffusing into silica surfaces gives rise for several effects on diffusion behaviour and mechanical properties. In a preceding booklet, we focused on diffusion and fiber strengths and deformations which were obtained ...
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, ...
Modeling of Dislocation
(2022)
A physically-based dislocation theory of plasticity is derived within an extended continuum mechanical context. Thermodynamically consistent flow rules at the grain boundaries are derived. With an analytical solution of a ...
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 ...
Motion Planning for Autonomous Vehicles in Partially Observable Environments
(2023)
This work develops a motion planner that compensates the deficiencies from perception modules by exploiting the reaction capabilities of a vehicle. The work analyzes present uncertainties and defines driving objectives ...
Modellbasierte prädiktive Längsdynamikregelung für künftige Fahrerassistenz- und Automatisierungssysteme
(2024)
A fundamental requirement for future automated vehicles is that curbs and other bumps in the road can be driven over safely, reliably and accurately. This work presents a concept for a model-based, predictive longitudinal ...
Verhaltensentscheidung für automatisierte Fahrzeuge mittels Arbitrationsgraphen
(2024)
This work proposes a system architecture for secure and robust behavioral decision-making for automated vehicles. It assembles basic behavior blocks in a hierarchical arbitration graph and ensures safety through verification ...
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 ...
Multimodal Panoptic Segmentation of 3D Point Clouds
(2023)
The understanding and interpretation of complex 3D environments is a key challenge of autonomous driving. Lidar sensors and their recorded point clouds are particularly interesting for this challenge since they provide ...
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. ...
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 ...
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 ...
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 ...
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 ...
Materiell nichtlineare Kontinuumsmodellierung ferroelektrischer Funktionskeramiken mit piezoelektrischen und flexoelektrischen Eigenschaften
(2024)
The present work deals with the development of a macroscopic continuum model to investigate the influence of the flexoelectric effect on microstructural domain switching processes in ferroelectric ceramics. It is of interest ...
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 ...
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. ...
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, ...
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 ...
Nutzung von Blickbewegungen für die Mensch-Computer-Interaktion mit dynamischen Bildinhalten am Beispiel der Videobildauswertung
(2024)
Interaction with dynamic image content is challenging for user perception, cognition and motor action. This dissertation identifies appropriate gaze-based interaction techniques for moving object selection in image sequences ...
Fahrassistenz
(2024)
Driving assistance systems are automotive basic equipment whilst promises of autonomous driving are still subject of dispute. Both are based on ideas of simplifying and automating the driving process that have a long ...
Der Quasi-n-Level Betrieb des Flying Capacitor Umrichters für Mittelspannungsanwendungen
(2024)
The quasi-n-level operation of the flying capacitor converter (FCCs) is an optimized operation mode of a multilevel converter. The quasi-n-level operation of a multilevel converter was presented with an analysis of its ...
Intelligent Reflecting Surfaces in Wireless Communication Systems
(2024)
Accompanied with the development of the wireless communication technologies, the high data traffic is more necessary for civil and industrial applications than ever The concept of an intelligent reflective surface (IRS) ...
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 ...
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 ...
Machine Learning for Camera-Based Monitoring of Laser Welding Processes
(2024)
The increasing use of automated laser welding processes causes high demands on process monitoring. This work demonstrates methods that use a camera mounted on the focussing optics to perform pre-, in-, and post-process ...
380 kV Superconducting Fault Current Limiter Feasibility Study
(2023)
In this study the technical and economic feasibility of a 380 kV, 5 kA resistive type superconducting fault current limiter was investigated. Conceptual designs were developed with superconducting tapes cooled by liquid ...
Trajectory optimization based on recursive B-spline approximation for automated longitudinal control of a battery electric vehicle
(2024)
This work describes a method for weighted least squares approximation of an unbounded number of data points using a B-spline function. The method can shift the bounded B-spline function definition range during run-time. ...
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 ...
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 ...
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 ...
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 ...
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 ...
Retroreflex Ellipsometry for Nonplanar Surfaces
(2025)
Retroreflex ellipsometry addresses the geometric restrictions of conventional ellipsometry by using a retroreflective sheet, which returns the light beam from the sample on the same beam path. Simulation and experiments ...
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 ...
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 ...
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 ...
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 ...
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 ...
Reduction of Selected Road Noise Phenomena by Modifying Suspension Kinematics Using Metamodels in the Digital Vehicle Development Phase
(2025)
With growing electrification and comfort in cars, road noise reduction is increasingly important. This study explores influencing road noise via suspension kinematics optimization in early development. 500 kinematics ...
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 ...
Occupant-Oriented Demand Response with Model Predictive Heating Control in a Multi-Zone Residential Building
(2025)
This book introduces a framework for occupant-oriented demand response in residential buildings with distributed energy sources. Using model predictive control, it optimizes heat pump operation while integrating PV, ...
Towards Learning Object Detectors with Limited Data for Industrial Applications
(2025)
In this dissertation, three novel Generalized Few-Shot Object Detection (G-FSOD) approaches are presented to minimize the forgetting of previously learned classes while learning new classes with limited data. The first two ...
Silicon-Plasmonic Photodetectors for High-Speed Signal Processing
(2025)
This book introduces and experimentally demonstrates a novel approach to exploit internal photoemission (IPE) for photodetection in silicon. The resulting device represents the first IPE-based detector that operates at ...
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 ...
Objektive Fahrkomfortbewertung des Gesamtfahrzeugs unter Berücksichtigung menschlicher Wahrnehmungsaspekte
(2025)
This study inquires into just noticeable differences in the stimulus between harmonic and transient vibrations, the properties and effects of transient vibrations, multi-sensory perception in the tactile frequency domain, ...
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 ...
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 ...