Publications
Now showing items 321-400 of 403
A Multiscale In Silico Study to Characterize the Atrial Electrical Activity of Patients With Atrial Fibrillation
(2022)
The atrial substrate undergoes electrical and structural remodeling during atrial fibrillation. Detailed multiscale models were used to study the effect of structural remodeling induced at the cellular and tissue levels. ...
OCM 2021 - Optical Characterization of Materials
(2021)
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, ...
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 ...
Self-Learning Longitudinal Control for On-Road Vehicles
(2023)
Reinforcement Learning is a promising tool to automate controller tuning. However, significant extensions are required for real-world applications to enable fast and robust learning. This work proposes several additions ...
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 ...
High-speed surface profilometry based on an adaptive microscope with axial chromatic encoding
(2021)
An adaptive microscope with axial chromatic encoding is designed and developed, namely the AdaScope. With the ability to confocally address any locations within the measurement volume, the AdaScope provides the hardware ...
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 ...
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, ...
Annual Report 2020 of the Institute for Thermal Energy Technology and Safety
(2022)
The annual report of the Institute for Thermal Energy Technology and Safety of KIT summarizes its research activities and provides some highlights of each working group, like thermal-hydraulic analyses for fusion reactors, ...
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 ...
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 ...
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, ...
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, ...
Proceedings of the International Workshop on Medical Ultrasound Tomography: 14.-15. Oct. 2019, Wayne State University, Detroit, Michigan, USA
(2021)
Ultrasound Tomography is an emerging technology for medical imaging that is quickly approaching its clinical utility. Research groups around the globe are engaged in research spanning from theory to practical applications. ...
Integration of Flywheel Energy Storage Systems in Low Voltage Distribution Grids
(2023)
A Flywheel Energy Storage System (FESS) can rapidly inject or absorb high amounts of active power in order to support the grid, following abrupt changes in the generation or in the demand, with no concern over its lifetime. ...
Inverse Dynamic Game Methods for Identification of Cooperative System Behavior
(2021)
This work addresses inverse dynamic games, which generalize the inverse problem of optimal control, and where the aim is to identify cost functions based on observed optimal trajectories. The identified cost functions can ...
Optimizing photocatalysts and photoreactors for solar fuel synthesis
(2023)
The work represents a toolbox for the design of a highly efficient photocatalytic process for solar-driven synthesis. The focus is the optimization of photoreactors and photocatalysts. The described photoreactor design ...
Representation of warm conveyor belts in sub-seasonal forecast models and the link to Atlantic-European weather regimes
(2023)
This study systematically investigates the representation of warm conveyor belts (WCBs) in large reforecast data sets of different numerical weather prediction models and evaluates the role of WCBs for the onset and life ...
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 ...
Modeling transport properties and electrochemical performance of hierarchically structured lithium-ion battery cathodes using resistor networks and mathematical half-cell models
(2022)
Hierarchically structured active materials in electrodes of lithium-ion cells are promising candidates for increasing gravimetric energy density and improving rate capability of the system. To investigate the influence of ...
Thermomechanical Modeling and Experimental Characterization of Sheet Molding Compound Composites
(2023)
The aim of this work is to model and experimentally characterize the anisotropic material behavior of SMC composites on the macroscale with consideration of the microstructure. Temperature-dependent thermoelastic behavior ...
Light Emission from Single Self-decoupled Molecules in a Scanning Tunnelling Microscope
(2022)
In this work, a clear pathway is presented to achieve well-defined electronically decoupled chromophores from metallic leads without requiring additional insulating layers. To study such self-decoupled molecules, STM ...
Analysis of a Rotatable Wind Turbine Tower by means of Aero-Servo-Elastic Load Simulations
(2021)
This work highlights how the costs and CO2-emissions of land-based wind turbines can be reduced by means of an innovative and material efficient support structure concept. Thereby the yaw system is placed at the tower base, ...
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. ...
Model-based Filtering of Interfering Signals in Ultrasonic Time Delay Estimations
(2023)
This work presents model-based algorithmic approaches for interference-invariant time delay estimation, which are specifically suited for the estimation of small time delay differences with a necessary resolution well below ...
Modellbasierte Entscheidungsunterstützung für Vertraulichkeit und Datenschutz in Geschäftsprozessen
(2023)
Information Confidentiality and Data Protection Networks (ICPN) support process modelers and process managers in not only taking a purely technical view of data protection and confidentiality, but also in taking it into ...
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 ...
Architecture-based Evolution of Dependable Software-intensive Systems
(2023)
This cumulative habilitation thesis, proposes concepts for (i) modelling and analysing dependability based on architectural models of software-intensive systems early in development, (ii) decomposition and composition of ...
EAS Elements for Solid Mechanics
(2023)
Proposed in the early 1990s, the enhanced assumed strain (EAS) method is one of the probably most successful mixed finite element methods for solid mechanics. This cumulative dissertation gives a comprehensive overview of ...
Modellfreies Lernen optimaler zeitdiskreter Regelungsstrategien für Fertigungsprozesse mit endlichem Zeithorizont
(2022)
The quality and performance of components is largely determined by the execution of the manufacturing processes involved. The process result depends -- in addition to the initial state of the component and the process -- ...
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 ...
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 ...
Gamification of telematics data to enhance operators’ behaviour for improvement of machine productivity in loading cycles
(2023)
Construction industry is suffering from low productivity rate in various projects such as excavation. Although this issue is discussed in literature and several approaches are proposed to address it, productivity rate is ...
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 ...
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 ...
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. ...
Untersuchungen zum Arbeitsfluss in getakteten Bauproduktionssystemen aus Perspektive von Generalunternehmern
(2022)
A good workflow plays a crucial role in production in terms of productivity and efficiency. In construction, the use of tact creates flow.The scientific work takes on the flow and tact in construction. A workflow evaluation ...
Finite Element Simulation of Residual Stresses from Welding and High Frequency Hammer Peening
(2022)
Research goal of the present monograph is the establishment of an efficient engineering approach, which will include straightforward but accurate simulation models, in order to estimate the residual stress fields of welded ...
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 ...
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 ...
Szeneninterpretation unter Verwendung multimodaler Sensorik und Salienzmaßen
(2022)
The work deals with aspects of image and video exploitation for monitoring, surveillance and security applications in non-cooperative application situations. The term "non-cooperative" refers to scenarios in which, for ...
Bauen mit Beton im Kreislauf - Recycling, Re-Use und Ressourcenschonung
(2023)
The concrete industry is facing the major challenge of drastically reducing CO₂ emissions and thus contributing to sustainability and climate protection. In these conference proceedings, we would like to focus on how we ...
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 ...
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 ...
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) ...
Integrated optical sensors on the Si₃N₄-organic hybrid (SiNOH) platform
(2023)
A waveguide-based sensor chip is demonstrated that is suitable for point-of-care applications. The biosensor is designed using a mathematical model to investigate the sensitivity of the waveguides. A new class of integrated ...
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 ...
Architectural Alignment of Access Control Requirements Extracted from Business Processes
(2023)
Business processes and information systems evolve constantly and affect each other in non-trivial ways. Aligning security requirements between both is a challenging task. This work presents an automated approach to extract ...
Model-Based Performance Prediction for Concurrent Software on Multicore Architectures
(2022)
Model-based performance prediction is a well-known concept to ensure the quality of software.Current approaches are based on a single-metric model, which leads to inaccurate predictions for modern architectures.
This ...
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 ...
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 ...
Experimental investigation of relevant road surface descriptors for tire-road noise measurements on low-absorbing road surfaces
(2024)
Ihrer Arbeit in der Originalsprache: This work aims at identifying relevant road surface characteristics to mitigate tire-road noise of free-rolling tires using a systematic approach. As using open porous roads is already ...
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), ...
AC Losses in High-Temperature Superconductor Tapes and Cables for Power Applications
(2022)
This work focuses on two topics. The first is the investigation of producing filaments on copper-stabilized coated conductors, with striations made after or before electroplating the tape. The second topic is the applicability ...
Multi-User Gesture Recognition with Radar Technology
(2022)
The aim of this work is the development of a Radar system for consumer applications. It is capable of tracking multiple people in a room and offers a touchless human-machine interface for purposes that range from entertainment ...
Knowledge-Driven Harmonization of Sensor Observations: Exploiting Linked Open Data for IoT Data Streams
(2021)
The rise of the Internet of Things leads to an unprecedented number of continuous sensor observations that are available as IoT data streams. Harmonization of such observations is a labor-intensive task due to heterogeneity ...
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 ...
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 ...
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 ...
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, ...