Publications
Voici les éléments 1921-1980 de 2508
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 ...
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 ...
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 ...
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. ...
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. ...
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 ...
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. ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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 ...
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, ...
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 ...
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. ...
Cassirers politische Philosophie
(2007)
The paper presents the main lines of the European totalitarianism debates to demonstrate Cassirer's argument on the same phenomenon of totalitarianism. The author focuses on Cassirer's philosophy of culture and political ...
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 ...
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 ...
High-Precision Automotive Radar Target Simulation
(2023)
Radar target simulators (RTSs) deceive a radar under test (RuT) by creating an artificial environment consisting of virtual radar targets. In this work, new techniques are presented that overcome the rasterization deficiency ...
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 ...
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 ...
Örtliches Auslegungskonzept gegen Pittingversagen bei randschichtgehärteten Zahnrädern
(2023)
The current design of gears against pitting fatigue is based on simple physical models in combination with empirically determined factors. In contrast to that, this work presents a new design concept against pitting fatigue ...
Proceedings - 32. Workshop Computational Intelligence: Berlin, 1. - 2. Dezember 2022
(2022)
This conference volume contains the contributions of the 32nd workshop "Computational Intelligence" of the Technical Committee 5.14 of the VDI/VDE Society for Measurement and Automation Technology (GMA) of 1.12. – 2.12.2022 ...
A hydrodynamical perspective on the turbulent transport of bacteria in rivers
(2023)
The transport of bacteria in turbulent river-like environments is addressed, where bacterial populations are frequently encountered attached to solids. This transport mode is investigated by studying the transient settling ...
Proceedings - 33. Workshop Computational Intelligence
(2023)
The workshop proceedings contain the contributions of the 33rd workshop "Computational Intelligence" which will take place from 23.11. - 24.11.2023 in Berlin. The focus is on methods, applications and tools for Fuzzy ...
Guaranteed Verification of Dynamic Systems
(2022)
This work introduces a new specification and verification approach for dynamic systems. The introduced approach is able to provide type II error free results by definition, i.e. there are no hidden faults in the verification ...
An analysis of current and future electricity production from biogas in Germany
(2023)
In this work a process simulation model identifies the most profitable German biogas plant types and sizes. Small manure and large-scale biowaste plants are currently the most economically attractive installations whereas ...
Fahrerintentionserkennung zur lichtbasierten Kommunikation mit Fußgängern
(2022)
Especially pedestrians rely on the interaction with other road users. The introduction of automated driving systems withdraws this communication from drivers and thus, vehicles need to interact with pedestrians.
Therefore, ...
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 ...
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 ...
Berufliche Bildung in Deutschland
(2008)
not yet available
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 ...
Dynamische Rekonfigurationsmethodik für zuverlässige, echtzeitfähige Eingebettete Systeme in Automotive
(2021)
Currently, dynamically reconfigurable systems are not used in automotive and there is no process model for their development. The focus of this dissertation is to explore methods and approaches for the development of such ...
Vernetztes Leben. Soziale und digitale Kulturen
(2006)
The Internet has taken with its unlimited communication structures an outstanding role. In the process of globalization this creates not only the possibility for the integration of access to information independent from ...
Registrierende Härtemessung an neutronenbestrahlten Materialien bei hohen Temperaturen
(2021)
The present work investigates neutron-irradiated EUROFER97 by high-temperature indentation. Before, a test procedure is defined for the prototype device Karlsruhe high-temperature indenter. The procedure leads to a quality ...
Vertrauen in Roboter und dessen Beeinflussbarkeit durch sprachliches Framing
(2022)
Collaborative robots (cobots) enable human-robot interactions in the workplace without safety fences. An appropriate level of trust by employees is critical to the success of these interactions. Anthropomorphic perceptions ...
Cross-Border Collaboration in Disaster Management
(2022)
In recent years, disaster events spreading across national borders have increased, which requires improved collaboration between countries. By means of an agent-based simulation and an empirical study, this thesis provides ...
Adaptive Modulationsverfahren für die schmalbandige Powerline-Kommunikation in Niederspannungsnetzen
(2020)
Powerline communications utilize the existing energy distribution network for information transmission. In this work, the low voltage grid is investigated as a transmission channel for frequencies up to 500 kHz. Based on ...
Kursbuch Geschichte der europäischen und globalen Moderne
(2022)
“Kursbuch Geschichte der europäischen und globalen Moderne” offers a compendium and study book on types of events, central terms and learning strategies in modern and contemporary European and global history as an exemplary ...
Umsetzung des datenschutzrechtlichen Auskunftsanspruchs auf Grundlage von Usage-Control und Data-Provenance-Technologien
(2021)
The ever-growing levels of complexity of modern information systems complicate the traceability of processed and stored personal data. The individual citizen is at the mercy of the systems. Data protection law tries to ...
Integration von Nachhaltigkeitsaspekten in die operativen und strategischen Prozesse von Kapitalverwaltungsgesellschaften für Immobilienfonds
(2022)
In this work, a proposal for the integration of sustainability aspects into existing risk and portfolio management processes of capital management companies for real estate funds is developed and presented. Here, the ...
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 ...
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, ...
Process simulation of wet compression moulding for continuous fibre-reinforced polymers
(2022)
Interdisciplinary development approaches for system-efficient lightweight design unite a comprehensive understanding of materials, processes and methods. This applies particularly to continuous fibre-reinforced plastics ...
Realities, Challenges, Visions?
(2022)
Changing realities, global power shifts, and societal upheavals are resulting in new tasks and challenges for Foreign Cultural and Educational Policy. In an age of globalisation, digitisation, and growing nationalism, there ...
Development of a modular Knowledge-Discovery Framework based on Machine Learning
(2023)
In this work, a novel knowledge discovery framework able to analyze data produced in the Gasoline Direct Injection (GDI) context through machine learning is presented and validated. This approach is able to explore and ...
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 ...
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 ...
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 ...
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 ...
Bewertung der Ökologie, Wirtschaftlichkeit und sozialen Effekte von ressourceneffizienzsteigernden Maßnahmen auf Quartiersebene – von der volkswirtschaftlichen zur akteursspezifischen Perspektive (NaMaRes): Schlussbericht des Forschungsvorhabens
(2023)
The NaMaRes project developed tools and recommendations to support sustainable and resource-efficient urban planning at the neighborhood level. The considered resources include water, materials, land, and ecosystem services. ...
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 ...
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. ...