Publications
Now showing items 1801-1860 of 2508
Fast Dense Depth Estimation from UAV-borne Aerial Imagery for the Assistance of Emergency Forces
(2023)
This work addresses the use of commercial off-the-shelf rotor-based unmanned aerial vehicles (UAVs) to facilitate emergency forces in the rapid structural assessment of a disaster site by means of aerial image-based ...
Innovative micro-NMR/MRI functionality utilizing flexible electronics and control systems
(2023)
The advantages offered by the flexible electronics and control systems technologies were utilized for tackling the challenges facing two crucial Magnetic Resonance (MR) applications. The first application is in the field ...
Worte am Werk
(2008)
not yet available
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 -- ...
Technology and readout for scaling up superconducting nanowire single-photon detectors
(2023)
This work presents three advances to scale SNSPDs from few-pixel devices to large detector arrays: atomic layer deposition for the fabrication of uniform superconducting niobium nitride films of few-nanometer thickness, a ...
Experimental investigation and process simulation of the compression molding process of Sheet Molding Compound (SMC) with local reinforcements
(2022)
In this book, a new three-dimensional approach for the process simulation of SMC is developed. This approach takes into account both, the core layer that is dominated by the extensional viscosity and the thin lubrication ...
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, ...
Adaptive Umweltmodellierung für kognitive Systeme in offener Welt durch dynamische Konzepte und quantitative Modellbewertung
(2022)
In this work, an approach for adaptive world modeling is proposed. World models for cognitive systems often employ predefined domain models, which may become insufficient when encountering unforeseen entities. The presented ...
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. ...
Verbesserungen beim Laserschneiden mit Methoden des maschinellen Lernens
(2022)
Although laser cutting of metals is a well-established process, there is considerable potential for improvement with regard to various requirements for the manufacturing industry. First, this potential is identified and ...
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 ...
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 ...
In Situ Characterization and Modelling of Drying Dynamics for Scalable Printing of Hybrid Perovskite Photovoltaics
(2023)
Hybrid perovskite photovoltaics could play a vital role in future’s renewable energy production. However, there are still severe challenges when scaling the technology. In this work, perovskite solution films drying in ...
Gutes Klima für die Zukunft. Dekarbonisierung als wichtiger Schlüssel zum nachhaltigen Bauen mit Beton
(2022)
How can we manage the growing demand for housing and the increasing desire for sustainability and climate protection at the same time? And how can the various stakeholders in the concrete construction industry contribute? ...
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 ...
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 ...
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 ...
Application of Data Mining and Machine Learning Methods to Industrial Heat Treatment Processes for Hardness Prediction
(2024)
This work presents a data mining framework applied to industrial heattreatment (bainitization and case hardening) aiming to optimize processes and reduce costs. The framework analyses factors such as material, production ...
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 ...
Automated Model Generation and Observer Design for Interconnected Systems
(2022)
This work addresses the automated generation of physical-based models and model-based observers. We develop port-Hamiltonian methods, which for the first time allow a complete and consistent automation of these two processes ...
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 ...
Breitbandige Frequenzweichen für die Parallelisierung von Millimeterwellen-Messtechnik
(2021)
This work describes the novel use of broadband continuous diplexers that could be integrated into on-wafer probes to parallize millimeter wave on-wafer measurement equipment. A model-based method for the efficient design ...
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 ...
Entwicklung und Charakterisierung von Siliziumnitrid-/Siliziumkarbidkompositen für den Einsatz in tribologisch hochbeanspruchten Gleitsystemen
(2023)
In this work, silicon nitride/silicon carbide composites are manufactured and characterized for tribologically highly stressed applications. The characterization of the composite materials shows the influence of the silicon ...
Umweltverträglichkeit und Menschenzuträglichkeit
(2009)
not yet available
Stochastic Range Estimation Algorithms for Electric Vehicles using Data-Driven Learning Models
(2022)
This work aims at improving the energy consumption forecast of electric vehicles by enhancing the prediction with a notion of uncertainty. The algorithm itself learns from driver and traffic data in a training set to ...
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 ...
Alexander Camaro (1901-1992) - Leben und Werk
(2021)
In four detailed and richly illustrated chapters, art historian Anna Krüger examines the life and work of painter Alexander Camaro (1901-1992). The study and the catalog raisonné of the paintings are based on a review of ...
Development of NbN based Kinetic Inductance Detectors on sapphire and diamond substrates for fusion plasma polarimetric diagnostics
(2022)
This work aimed at designing, studying and producing the first prototypes of KIDs tailored for fusion plasma polarimetric diagnostics. Diamond was considered for the first time as substrate material for low-temperature ...
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 ...
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 ...
Entwicklung keramischer Vergussmassen mit Alkoxysilanen zur Steigerung der Haftfestigkeit
(2023)
The adhesion of encapsulation materials is an dendrimental factor for the robustness and functionality of a power electronic device. In this work the adhesion of ceramic potting materials was developed. A new primer was ...
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 ...
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. ...
Entwicklung von Siebdruckpasten zur Herstellung von Glaslotfügungen für die Festoxidbrennstoffzelle
(2021)
Solid oxide fuel cells are used to generate electricity from various fuel gases. The sealants between the stack-components should be gas-tight, mechanically stable and insulating. This work shows that glass ceramics can ...
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 ...
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 ...
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) ...
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. ...
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), ...
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 ...