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  • thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues  (128)
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  • KIT Scientific Publishing  (128)
  • English  (128)
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  • English  (128)
  • Japanese
  • German  (260)
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  • 1
    Publication Date: 2024-04-09
    Description: Radio communications in the range of 60 GHz enable multi-Gigabit/s network access in indoor environments. Due to the propagation characteristics of such signals only very short range radio transmission is feasible. In order to distribute these signals across large distances, analog transmission over optical fiber is considered. In this work, mode-locked laser diodes serve as optoelectronic oscillators for the generation of such signals. Their system-relevant properties are studied in detail.
    Keywords: T1-995 ; millimeter wave communications ; mode-locked lasers ; wireless personal area networks ; radio-over-fiber ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 2
    Publication Date: 2024-04-09
    Description: The aim of this work was to identify the patterns that can induce heating around implanted cardiac pacemakers during MRI and to develop strategies to counteract them. Two approaches were taken: computer simulations of the occurring electromagnetic field distributions and in-vitro experiments using phantoms in real MRI devices, both for conventional bore-hole and new open MRI systems. Using the open MRI, the observed heating could be reduced significantly.
    Keywords: T1-995 ; pacemaker ; MRI ; numerical field calculation ; biomedical engineering ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 3
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    KIT Scientific Publishing
    Publication Date: 2024-04-09
    Description: In this work, the realization limits of an impulse-based Ultra-Wideband (UWB) localization system for indoor applications have been thoroughly investigated and verified by measurements. The analysis spans from the position calculation algorithms, through hardware realization and modeling, up to the localization experiments conducted in realistic scenarios. The main focus was put on identification and characterization of limiting factors as well as developing methods to overcome them.
    Keywords: T1-995 ; localization ; UWB ; transceiver ; positioning ; ultra-wideband ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 4
    Publication Date: 2024-04-09
    Description: This work has arisen out of the strong demand for a superior power-added efficiency (PAE) of AlGaN/GaN high electron mobility transistor (HEMT) high-power amplifiers (HPAs) that are part of any advanced wireless multifunctional RF-system with limited prime energy. Different concepts and approaches on device and design level for PAE improvements are analyzed, e.g. structural and layout changes of the GaN transistor and advanced circuit design techniques for PAE improvements of GaN HEMT HPAs.
    Keywords: T1-995 ; MMIC design ; power amplifier ; AlGaN/GaN HEMT ; X-band ; power-added efficiency ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 5
    Publication Date: 2024-04-09
    Description: Fracture of storage particles is considered to be one of the major reasons for capacity fade and increasing power loss in Li-ion batteries. In this work, we tackle the problem by merging a coupled model of mechanical stress and diffusion of Li-ions with a phase field description of an evolving crack. The novel approach allows us to study the evolution of the Li concentration together with the initiation and growth of a crack in an arbitrary geometry and without presuming a specific crack path.
    Keywords: T1-995 ; Lithium-Diffusion ; Lithium-Ionen-BatterienCrack Growth ; Storage Particles ; Risswachstum ; Phasefield ; Li-Diffusion ; Phasenfeld ; Li-Ion-Batteries ; Speicherpartikel ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 6
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    KIT Scientific Publishing
    Publication Date: 2024-04-09
    Description: We study the potential of the silicon-organic hybrid (SOH) platform for integrated optics. The unique properties of selected organic materials are added to silicon devices made with CMOS-based processes. We investigate the feasibility of this approach by making prototypes of key components in form of photonic integrated circuits: SOH lasers and SOH modulators are designed, fabricated, post-processed, and characterized. Application scenarios are identified.
    Keywords: T1-995 ; CMOS ; Modulator ; laser ; modulator ; Silizium-Photonik ; Laser ; Detektor ; CMOSsilicon photonics ; detector ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 7
    Publication Date: 2024-04-09
    Description: In this book, stagnation flows on a catalytic porous plate is modeled one-dimensionally coupled with multi-step surface reaction mechanisms and molecular transport (diffusion and conduction) in the flow field and in the porous catalyst. Internal and external mass transfer limitations as well as possible reaction routes in the catalyst are investigated for CO oxidation, WGS reaction, partial and steam reforming of methane over Rh/Al?O?.
    Keywords: T1-995 ; Heterogeneous catalysis ; Stofftransportlimitierungen ; Reaktion-DiffusionStagnation-flow reactor ; Staupunktreaktor ; Reaction-Diffusion ; Heterogenen Katalyse ; External and internal mass transfer limitation ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 8
    Publication Date: 2024-04-09
    Description: The present work delivers a versatile, accurate and reliable wind tunnel facility that is particularly developed to test different flow control techniques for drag reduction in precisely adjustable test conditions. Skin friction changes of 0.4% are resolved, which is comparable to the most accurate reported studies in liquids. this high accuracy is verified through a comprehensive uncertainty analysis. Subsequently, various passive and active flow control strategies are investigated.
    Keywords: T1-995 ; Riblets ; Kanalströmung ; pressure measurement ; riblets ; accuracy ; Messgenauigkeitchannel flow ; drag reduction ; Wandreibung ; Druckmessung ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 9
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    KIT Scientific Publishing
    Publication Date: 2024-04-09
    Description: ECG recordings provide diagnostic relevant information on the de- and repolarisation sequences of the heart. A modification of the repolarisation sequence is assumed to cause Torsades de Pointes. Especially drug induced effects on the repolarisation processes are in focus, since some non-cardiac drugs have been associated with sudden cardiac death in the 1990s. The analysis of the ventricular repolarisation using a set of parameters depicting the morphology of the T-wave is introduced in this work. Therefore, new methods of fully automatic patient-specific QRS detection, beat classification and precise T-wave delineation are presented. Using these methods, medical studies are investigated regarding the modification of the T-wave by different compounds. Also the impact of the heart rate on the morphology of the T-wave is part of this research.The reliable identification of ventricular ectopic beats allows an analysis of the influence of these beats on subsequent heart beats. It turned out that the morphology of subsequent heart beats can significantly be changed. This might give new information on the proarrythmical risk of ventricular ectopic beats.
    Keywords: T1-995 ; QT interval ; QT prolongation ; T wave ; Repolarisation ; HRT ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 10
    Publication Date: 2024-04-09
    Description: In this work, a flexible biosensor platform based on impedance spectroscopy and comprising of gold electrodes, polymeric flow cells and a suitable surface modification were developed. Initially, several surface modification techniques described in literature were implemented and optimized for impedimetric biosensors but their individual limitations rendered them unsuitable for this biosensor platform. A novel method based on photobleaching was developed and tested showing satisfactory results.
    Keywords: T1-995 ; Mikrofluidik ; electrochemical impedance spectroscopy ; Oberflächenmodifikation ; Biosensor ; surface modification ; photobleaching ; PhotobleichungBiosensor ; microfluidics ; Elektrochemische Impedanzspektroscopie ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 11
    Publication Date: 2024-04-09
    Description: Due to their high energy conversion efficiencies and low emissions, Solid Oxide Fuel Cells (SOFCs) show promise as a replacement for combustion-based electrical generators at all sizes. Further increase of SOFC efficiency can be achieved by microstructural optimization of the oxygen-ion conducting electrolyte and the mixed ionic-electronic conducting cathode. By application of nanoscaled thin films, the exceptionally high efficiency allows the realization of mobile SOFCs.
    Keywords: T1-995 ; grain-size effect ; nanoscaled thin film ; solid oxide fuel cell (SOFC) ; cathode ; electrolyte ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 12
    Publication Date: 2024-04-09
    Description: Within this book fabrication processes for high-quality Josephson junctions based on niobium and aluminum oxide as well as niobium nitride and aluminum nitride on various substrates are discussed. Techniques for achieving a planar chip topography and sub-µm lateral dimensions, aiding the realization of sophisticated Josephson devices such as SQUIDs, flux-flow oscillators and long Josephson junctions with artificial phase discontinuities, are presented in detail.
    Keywords: T1-995 ; Superconductor ; Quantum ; Multilayer ; Cryogenics ; Josephson ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 13
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    KIT Scientific Publishing
    Publication Date: 2024-04-09
    Description: Collision avoidance systems like emergency braking assist systems have demonstrated their effectiveness in increasing the safety of vehicle passengers in various studies. To further increase the effectiveness of collision avoidance systems, the exploitation of the lateral free space by evasive maneuvers is being investigated in this book. This work focuses on methods for integrated trajectory planning and vehicle dynamics control in collision avoidance scenarios by combined evasion and braking.
    Keywords: T1-995 ; Fahrdynamikregelung ; model predictive control ; Collision Avoidance System ; Modelprädiktive Regelung ; Kollisionsvermeidung ; Trajectory Planning ; Driver Assistance System ; Fahrassistenzsystem ; Trajektorienplanung ; Vehicle Dynamics Control ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 14
    Publication Date: 2024-04-09
    Description: Mixed ionic-electronic conducting (MIEC) ceramics as oxygen transport membranes (OTMs) can provide high oxygen permeation rates at comparably low energy demands. For this purpose, Ba?.?Sr?.?Co?.?Fe?.?O??? (BSCF) shows the best performance under ideal operating conditions. Thermal and chemical stability investigations, electrical behavior ?(T,pO?,t), and oxygen exchange parameter extraction by means of electrical conductivity relaxation resulted in a far better understanding of the BSCF system.
    Keywords: T1-995 ; electrochemical characterization ; thermische und chemische Stabilitätmixed ionic-electronic conductors ; oxygen transport membranes ; elektronische/ionische Mischleiter ; thermal and chemical stability ; Sauerstofftransportmembranen ; BSCF ; elektrochemische Charakterisierung ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 15
    Publication Date: 2024-04-09
    Description: Ein Riss im Rotor ruft eine lokale Steifigkeitsänderung hervor. Die vorliegende Arbeit ermittelt die Steifigkeitsänderung einer angerissenen Welle. Dazu wird ein Kohäsivzonenmodell eingesetzt. Das Modell wurde für die erste Rissöffnungsmode bei ebenem Verzerrungszustand in Abhängigkeit der Mehrachsigkeit des Spannungszustandes (Triaxialität) entwickelt. Außerdemwird das Kohäsivzonenmodell bei einem eindimensionalen Kontinuumsrotor als FE Modell ausgeführt.
    Keywords: T1-995 ; Cohesive zone model ; cracked rotor ; stiffness variation ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 16
    Publication Date: 2024-04-09
    Description: Techniques based on numerical simulations have been applied to the analysis of the heat exchanger and the High Temperature Superconductor (HTS) module of HTS current leads. In the first case correlations have been derived for the meander flow geometry. In the second case steady state and transient thermal-electric models have been validated. Both techniques are used to design and optimize HTS current leads. The correlations were applied to a predictive analysis of the ITER HTS current leads.
    Keywords: T1-995 ; current lead ; Nuclear fusion ; High Temperature Superconductor ; Computational thermal Fluid Dynamics ; Numerical simulation ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 17
    Publication Date: 2024-04-09
    Description: The work presents an attempt to improve the understanding of reactive drag reducing control of near-wall turbulence with respect to limitations present in a realistic application scenario. The reference reactive control scheme of opposition control is studied using direct numerical simulation through the consideration of various application oriented restrictions, i.e. local control application, limited spatial and temporal resolution of the scheme, sensor noise and control elements arrangement.
    Keywords: T1-995 ; turbulence control ; direct numerical simulation ; turbulent boundary layers ; Direkte Numerische Simulation ; Reibungsminderung ; drag reduction ; Turbulente Grenzschichten ; Turbulenzkontrolle ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 18
    Publication Date: 2024-04-09
    Description: This book targets three fields of computational multi-scale cardiac modeling. First, advanced models of the cellular atrial electrophysiology and fiber orientation are introduced. Second, novel methods to create patient-specific models of the atria are described. Third, applications of personalized models in basic research and clinical practice are presented. The results mark an important step towards the patient-specific model-based atrial fibrillation diagnosis, understanding and treatment.
    Keywords: T1-995 ; atrial fibrillation ; radio-frequency ablation ; hemodialysis therapy ; atrial anatomy ; cardiac modeling ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 19
    Publication Date: 2024-04-09
    Description: The work describes a method for the determination of the conversion by radical photopolymerization of acrylic coatings that is suitable for an in situ monitoring during the coating process.The applied method is based on the 1620 nm overtone absorption of the acrylate end group. The capability of the sensor to discriminate between polymerized and unpolymerized coatings on metal substrates down to a coating thickness of less than 16µm is demonstrated and and proved by reference measurements.
    Keywords: T1-995 ; acrylate ; photopolymerization ; in-line monioring ; UV-coatings ; 1620 nm overtone absorption ; conversion monitoring ; IR-spectroscopy ; coating thickness ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 20
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    KIT Scientific Publishing
    Publication Date: 2024-04-09
    Description: Environment perception with cameras is an important requirement for many applications for autonomous vehicles and robots. This work presents a stereoscopic omnidirectional camera system for autonomous vehicles which resolves the problem of a limited field of view and provides a 360° panoramic view of the environment. We present a new projection model for these cameras and show that the camera setup overcomes major drawbacks of traditional perspective cameras in many applications.
    Keywords: T1-995 ; Bildverarbeitung ; Autonomous Vehicles ; Rundumsicht ; Kamera-Kalibrierung ; Computer Vision ; Autonomes Fahren ; Robotik ; Camera-Calibration ; Omni-Vision ; Robotics ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 21
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    KIT Scientific Publishing
    Publication Date: 2024-04-09
    Description: Hot-electron bolometers are fast and low noise radiation detectors which can be used for many different applications. The aim of this work was to optimize the fabrication process of hot-electron bolometers and gain a deeper understanding of the underlying processes. To achieve this, the fabrication of the superconducting thin films was optimized and the superconducting properties of the films were analyzed. Detectors fabricated using the results showed a record value for the noise temperature.
    Keywords: T1-995 ; noise temperature ; superconductivity ; THz detector ; optimization ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 22
    Publication Date: 2024-04-09
    Description: The 12th volume of Reports on Industrial Information Technology presents some selected results of research achieved at the Institute of Industrial Information Technology during the last two years.These results have contributed to many cooperative projects with partners from academia and industry and cover current research interests including signal and image processing, pattern recognition, distributed systems, powerline communications, automotive applications, and robotics.
    Keywords: T1-995 ; Powerline Communications ; Image Processing ; Robotics and autonomous systems ; Automotive ; Signal Processing ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 23
    Publication Date: 2024-04-09
    Description: Throughput in manual order picking systems with narrow aisles suffers from congestion as pickers cannot pass each other. Only few models incorporate congestion but they have very strict assumptions. In this work, queueing theory is used to analyze systems with traversal routing as well as different storage policies. The models are able to estimate throughput for many alternative designs in a relatively short amount of time. New guidelines for narrow-­aisle order picking systems are introduced.
    Keywords: T1-995 ; Order Picking ; Blocking ; Queueing Theory ; Congestion ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 24
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    KIT Scientific Publishing
    Publication Date: 2024-04-09
    Description: In this book, a new procedure to analyze lithium-ion cells is introduced. The cells are disassembled to analyze their components in experimental cell housings. Then, Electrochemical Impedance Spectroscopy, time domain measurements and the Distribution function of Relaxation Times are applied to obtain a deep understanding of the relevant loss processes. This procedure yields a notable surplus of information about the electrode contributions to the overall internal resistance of the cell.
    Keywords: T1-995 ; Lithium-Ionen Zelle ; lithium-ion cell ; impedance spectroscopy ; Modell ; distribution of relaxation times ; Verteilung der Relaxationszeiten ; loss processes ; Impedanzspektroskopie ; model ; Verlustprozesse ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 25
    Publication Date: 2024-04-09
    Description: Heart disease is a leading cause of death worldwide. Straightforward information about the cardiac electrophysiology can help to improve the quality of diagnosis of heart diseases. The inverse problem of electrocardiography and the intracardiac catheter measurement are two ways to get access to the electrophysiology in the heart. In this thesis six research topics related to these two techniques are included.
    Keywords: T1-995 ; premature ventricular contraction ; inverse problem of electrocardiography ; myocardial infarction ; ECG measurement system ; intracardiac mapping ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 26
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    KIT Scientific Publishing
    Publication Date: 2024-04-09
    Description: The intuitive understanding of contact bodies is based on the geometry and adjoining surfaces. A powerful approach to solve the contact problem is to take advantage of the geometry of an analyzed object and describe the problem in the best coordinate system. This book is a systematical analysis of geometrical situations leading to contact pairs: suface-to-surface, curve-to-surface, point-to-surface a.s.o. resultingin the corresponding computational algorithms to solve the contact problem.
    Keywords: T1-995 ; geometrical methods in mechanics ; computatiobal contact mechanics ; covariant contact description ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 27
    Publication Date: 2024-04-09
    Description: With the advent of high performance computing, the application areas of the phase-field method, traditionally used to numerically model the phase transformation in metals and alloys, have now spanned into geoscience. A systematic investigation of the two distinct scientific problems in consideration suggest a strong influence of interfacial energy on the natural and induced pattern formation in diffusion-controlled regime.
    Keywords: T1-995 ; Oberflächenenergie ; GesteinsadernMultiphase-field model ; Interfacial energy ; Veins ; Multiphasenfeldmodell ; Eutektoider Umwandlungen ; Eutectoid transformations ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 28
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    KIT Scientific Publishing
    Publication Date: 2024-04-09
    Description: In this work an approach is presented to model and recognize traffic maneuvers in terms of interactions between different traffic participants on extra urban roads. Results of the recognition concept are presented and evaluated using different sensor setups and its benefit is outlined by an integration into a software framework in the field of Car-to-Car (C2C) communications. Furthermore, recognition results are used in this work to robustly predict vehicle’s trajectories while driving dynamic
    Keywords: T1-995 ; Nachrichtenverifizierung ; Trajectory Prediction ; Maneuver Recognition ; Probabilistic Models ; Message Verification ; Situationsanalyse ; Probabilistische Modellierung ; TrajektorienprädiktionSituation Assessment ; Fahrmanövererkennung ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 29
    Publication Date: 2024-04-09
    Description: This work introduces a novel wireless approach for the data transmission within automotive battery management systems. The main target is the reduction of the wiring harness deployed in a battery. The characteristics of the wireless in-battery channel are investigated by means of measurements and software-based electromagnetic simulations. Different types of antennas and frequency bands are analyzed. The performance of the proposed system is evaluated by means of simulations and prototypes.
    Keywords: T1-995 ; HF-Messung ; Battery Management System ; Drahtlose Kommunikation ; Electromagnetic Simulation ; Antenne ; Wireless Communications ; Batteriemanagementsystem ; Elektromagnetische Simulation ; RF Measurement ; Antenna ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 30
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    KIT Scientific Publishing
    Publication Date: 2024-04-09
    Description: In this book we successfully demonstrate a millimeter-precision laser rangefinder using a low-cost photon counter. An application-specific integrated circuit (ASIC) comprises timing circuitry and single-photon avalanche diodes (SPADs) as the photodetectors. For the timing circuitry, a novel binning architecture for sampling the received signal is proposed which mitigates non-idealities that are inherent to a system with SPADs and timing circuitry in one chip.
    Keywords: T1-995 ; Photonenzähler ; Laser-EntfernungsmessgerätDistance measurement ; SPAD ; laser rangefinder ; Entfernungsmessung ; LIDAR ; photon counter ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 31
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    KIT Scientific Publishing
    Publication Date: 2024-04-09
    Description: Three dimensional modeling and visualization of environments is an increasingly important problem. This work addresses the problem of automatic 3D reconstruction and we present a system for unsupervised reconstruction of textured 3D models in the context of modeling indoor environments. We present solutions to all aspects of the modeling process and an integrated system for the automatic creation of large scale 3D models.
    Keywords: T1-995 ; Robotik Rekonstruktion Modellierung Registering SLAMRobotics Reconstruction Modeling Registration SLAM ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 32
    Publication Date: 2024-04-09
    Description: Nanostructured metals with maximal grain or twin sizes of less than 100 nm have advanced properties like increased strength.As beneficial as these microstructures can be for the strength of materials, they are not infinitely stable. During mechanical loading these metals tend to coarsen and lose their beneficial structure. Besides electron microscopic analysis of fatigued samples, in situ cycling tests were conducted in order to observe structural degradation during mechanical loading.
    Keywords: T1-995 ; fatigue ; nanostructured metals ; electron microscopy ; in situ ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 33
    Publication Date: 2024-04-09
    Description: In this book a novel optical switch is designed, developed, and tested. The switch integrates optical switching, transparent traffic aggregation/grooming, and optical regener-ation. Innovative switch subsystems are developed that enable these functionalities, including all-optical OTDM-to-WDM converters. High capacity ring interconnection between metro-core rings, carrying 130 Gbit/s OTDM traffic, and metro-access rings carring 43 Gbit/s WDM traffic is experimentally demonstrated. The developed switch features flexibility in bandwidth provisioning, scalability to higher traffic volumes, and backward compatibility with existing network implementations in a future-proof way.
    Keywords: T1-995 ; All-Optical Regeneration ; Traffic Grooming and Aggregation ; Time Division Multiplexing ; Optical Communications ; Wavelength Division Multiplexing ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 34
    Publication Date: 2024-04-09
    Description: In this book, semiconductor optical amplifiers (SOAs) are studied with a view to linear and nonlinear applications in next-generation optical networks. Quantum-dot SOAs can be optimized for linear amplification of signals with different modulation formats and multiplexing techniques. Conversely, bulk SOAs can be easily optimized for operation in the nonlinear regime. However, due to the fast carrier recovery times in QD SOAs we also look into nonlinear applications with these devices.
    Keywords: T1-995 ; wavelength conversion ; semiconductor optical amplifier (SOA) ; reach extender ; quantum-dot ; access network ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 35
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    KIT Scientific Publishing
    Publication Date: 2024-04-09
    Description: The deep drawing of an aluminum alloy used in the packaging industry for the beverage can manufacturing process is investigated. In this work, the effective constitutive behavior is based on a crystal plasticity model in combination with a non-linear Hashin-Shtrikman type homogenization scheme in which a reference stiffness controls the stress and strain fluctuations. The simulation results are compared to experiments in terms of deep drawing earing profiles, texture evolution, and localization.
    Keywords: T1-995 ; Mikromechanik ; homogenization ; Homogenisierung ; sheet metal forming ; Multiskalen ; Blechumformungmicromechanics ; multiscale ; Kristallplastizität ; crystal plasticity ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 36
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    KIT Scientific Publishing
    Publication Date: 2024-04-09
    Description: We present a virtual heart model simulating the flow in the left human ventricle and in the aorta. Because of the lack of in vivo structure data of the human ventricle, the active ventricle movement is given by a time-dependent ventricle model that is derived from in vivo image data of a nuclear spin MRT tomograph of a healthy human heart. The passive part of the virtual heart model consists of a model aorta and vena cava, and of heart valves. As the movement is due to the flow in the inactive region of the heart, a coupling of flow and structure is necessary in the model to take into account the deviation of the aorta and the closing and opening of the heart valves. The flow calculation is performed with a finite volume method, while the structure of the aorta is calculated using the finite element method. The flow resistance of the time simulation in the body is taken into account with a circulation model. In the outlook of the article, we show how the virtual heart model can be used to predict flow losses due to pathological ventricle contraction defects in an unhealthy human heart.
    Keywords: T1-995 ; pathological ventricle defects ; Computer Fluid Dynamics ; in vivo ; left human ventricle ; MRI tomography ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 37
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    KIT Scientific Publishing
    Publication Date: 2024-04-09
    Description: This work proposes novel approaches for object tracking in challenging scenarios like severe occlusion, deteriorated vision and long range multi-object reidenti?cation. All these solutions are only based on image sequence captured by a monocular camera and do not require additional sensors. Experiments on standard benchmarks demonstrate an improved state-of-the-art performance of these approaches. Since all the presented approaches are smartly designed, they can run at a real-time speed.
    Keywords: T1-995 ; Occlusion ; geringe Beleuchtung ; Tracking ; multiple objects ; monocular camera ; low illumination ; mehrere Objeke ; Verdeckung ; monokulare Kamera ; Verfolgung ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 38
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    KIT Scientific Publishing
    Publication Date: 2024-04-09
    Description: All-optical signal processing will be used in future communication networks. We discuss a new and generic scheme for such devices. The basic configuration comprises an asymmetric resonator within an active or passive nonlinear medium. This arrangement enables all-optical flip-flop operation and switching with a reduced threshold. In addition, a novel optical isolator concept based on resonator asymmetries is is introduced. The model is also applicable to photonic crystal based resonators.
    Keywords: T1-995 ; All-optical signal processing ; Optical flip-flop ; Nonlinear resonators and photonic crystals ; Nonreciprocity ; Switching ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 39
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    KIT Scientific Publishing
    Publication Date: 2024-04-09
    Description: A short introduction to the theory of surface plasmon polaritons (SPPs) is given. The application of the SPPs in on-chip signal processing is discussed. In particular, two concepts of plasmonic modulators are reported, wherein the SPPs are modulated by 40 Gbit/s electrical signals. Phase and Mach-Zehnder modulators employing the Pockels effect in electro-optic organic materials are discussed. A few micro-meter long SPP absorption modulator based on a thin layer of indium-tin-oxide is reported.
    Keywords: T1-995 ; phase modulator ; indium tin oxide ; Plasmonik ; surface plasmon polariton ; Indium-Zinn-Oxid ; Oberfla?chen-Plasmon-Polaritonen ; Plasmonics ; Modulatoren ; modulators ; Absorptionsmodulator ; Phasenmodulator ; absorption modulator ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 40
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    KIT Scientific Publishing
    Publication Date: 2024-04-09
    Description: Scope of this work is to determine cycle time formulas for packing in distribution centres. No such formulas exist today, even if it is the second most important process after picking. Based on examining packing, morphological boxes showing time influencing parameters are derived. The most significant parameters are identified using analysis of variance (ANOVA). Cycle times are determined and applied to cases. These prove that the formulas can be used to calculate the time required for packing.
    Keywords: T1-995 ; cycle time ; Lagerpacking ; packaging ; Verpacken ; Packen ; Distributionszentrum ; warehouse ; distribution centre ; Spielzeit ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 41
    Publication Date: 2024-04-09
    Description: The main objective of this book is to analyse and detect small changes in ECG waves and complexes that indicate cardiac diseases and disorders. Detecting predisposition to Torsade de Points (TDP) by analysing the beat-to-beat variability in T wave morphology is the main core of this work. The second main topic is detecting small changes in QRS complex and predicting future QRS complexes of patients. Moreover, the last main topic is clustering similar ECG components in different groups.
    Keywords: T1-995 ; Wavelet ; TdP ; Baseline Wander ; ECG ; Torsade de Points ; Feature Extraction ; Biosignal Pr ; Multi-Channel ECG ; Principal Component Analysis ; PCA ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 42
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    KIT Scientific Publishing
    Publication Date: 2024-04-09
    Description: While the spectral information contained in hyperspectral images is rich, the spatial resolution of such images is in many cases very low. Many pixel spectra are mixtures of pure materials’ spectra and therefore need to be decomposed into their constituents. This work investigates new decomposition methods taking into account spectral, spatial and global 3D adjacency information. This allows for faster and more accurate decomposition results.
    Keywords: T1-995 ; Spektrale Entmischung ; spectral unmixing ; Blinde Quellentrennung ; Hyperspectral image processing ; Nichtnegative Matrixzerlegung ; nonnegative matrix factorization ; blind source separation ; Hyperspektrale Bildverarbeitung ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 43
    Publication Date: 2024-04-09
    Description: This work aims at developing a strategy how the energy which has to be applied to transport incompressible and Newtonian fluids through straight ducts can be reduced. Based on the physical properties of laminar and turbulent flow, models are derived which theoretically lead to the reduction of the dissipated energy. The possibility to implement the proposed state due to appropriate design aspects in the cross section shape of the duct is investigated based on numerical simulations of the flow
    Keywords: T1-995 ; Strömungskontrolle ; direkte numerische Simulation ; direct numerical simulation ; turbulente Strömungflow control ; turbulent flow ; drag reduction ; Reibungsreduktion ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 44
    Publication Date: 2024-04-09
    Description: In this work, up to 80 Gbit/s monolithically integrated clock and data recovery (CDR) circuits with 1:2 demultiplexer are developed. The integrated circuits are manufactured using an InP double heterojunction bipolar transistor (DHBT) technology, featuring cut-off frequency values of more than 250 GHz. The outstanding and (to some extent) record achievements throughout the work make an essential contribution to the development of future optical telecommunication networks operating at 80 Gbit/s.
    Keywords: T1-995 ; InP DHBT ; Phase detector ; Phase-locked loop ; Optical link ; Clock and data recovery ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 45
    Publication Date: 2024-04-09
    Description: This work presents methods to advance electrophysiological simulations of intracardiac electrograms (IEGM). An experimental setup is introduced, which combines electrical measurements of extracellular potentials with a method for optical acquisition of the transmembrane voltage in-vitro. Thereby, intracardiac electrograms can be recorded under defined conditions. Using experimental and clinical signals, detailed simulations of IEGMs are parametrized, which can support clinical diagnosis.
    Keywords: T1-995 ; catheter ; Simulation ; experiment ; signal processing ; Experiment ; simulation ; Herz ; Katheter ; Signalverarbeitungheart ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 46
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    KIT Scientific Publishing
    Publication Date: 2024-04-09
    Description: Current automotive radar sensors prove to be a weather robust and low-cost solution, but are suffering from low resolution and are not capable of classifying detected targets. However, for future applications like autonomous driving, such features are becoming ever increasingly important. On the basis of successful state-of-the-art applications, this work presents the first in-depth analysis and ground-breaking, novel results of polarimetric millimeter wave radars for automotive applications.
    Keywords: T1-995 ; Machine-Learning ; Millimeter-Wave Radar ; Automotive Radar ; Polarimetric Radar ; Target Classification ; Polarimetrie ; Millimeterwellen-Radar ; Objekterkennung ; KI ; Automotive-Radar ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 47
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    KIT Scientific Publishing
    Publication Date: 2024-04-09
    Description: Nowadays, compact fluorescent lamps are widely-used in general lighting applications. However, they still struggle with acceptance problems due to the hazardous mercury, which serves as the radiant component inside the lamp. The presented work deals with the development of a mercury-free, electrodeless, low pressure plasma based on a molecular filling and driven by microwaves, which may represent a viable alternative to the conventional CFLs.
    Keywords: T1-995 ; Plasma ; Surface waves ; Oberflächenwellen ; General lighting ; QuecksilberfreiPlasma ; Mercury free ; Mikrowellen ; Allgemein Beleuchtung ; Microwaves ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 48
    Publication Date: 2024-04-09
    Description: This work presents a numerical FEM framework, capable of predicting SOFC performance under technically relevant, planar stack contacting conditions. A high level of confidence in the model predictions is supplied by using exclusively experimentally determined material/kinetic parameters and by a comprehensive validation. The presented model aids SOFC stack development by pre-evaluating possible material choices and design combinations for cells/interconnectors without any experimental effort.
    Keywords: T1-995 ; Finite Element Method (FEM) simulation ; Solid Oxide Fuel Cell (SOFC) ; Hochtemperatur Festoxid-Brennstoffzelle (SOFC) ; anode supported cell (ASC) ; Finite Elemente Methode (FEM) Simulation ; mischleitende (MIEC) Kathode ; mixed-ionic-electronic conductive (MIEC) cathode ; anodengestützte Zelle (ASC) ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 49
    Publication Date: 2024-04-09
    Description: Grating based X-ray phase contrast imaging sets out to overcome the limits of conventional X-ray imaging in the detection of subtle density differences and opens a way to characterize a sample’s microstructure without the need for ultrahigh spatial resolution. The technique relies on grating structures with micrometric periods and extreme aspect ratio – their fabrication by X-ray lithography with optimal structure quality is the topic of this work.
    Keywords: T1-995 ; Talbot effect ; Röntgengitter ; LIGA ; X-ray optics ; Phasenkontrast ; Talbot-Effect ; phase contrast ; X-ray gratings ; Röntgenoptik ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 50
    Publication Date: 2024-04-09
    Description: The deformation behavior of steels is strongly influenced by their microstructure which is a result of the alloying elements and thermal treatments. In this work, the microstructure and the deformation behavior of a non-alloyed deep drawing DC04 steel was investigated. The microstructure was analyzed during heat treatment by EBSD, then microcompression experiments were performed on selected microstructural units and then bulk steel samples were mechanically tested by tensile experiments.
    Keywords: T1-995 ; in-situ heating ; Microcompression experiments ; Tensile Experiments ; non-alloyed steel ; EBSD ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 51
    Publication Date: 2024-04-09
    Description: The objective of this work is to develop a method which solves the nonlinear elastohydrodynamic contact problem in a fast and precise way using model order reduction techniques. The reduction procedure is based on a projection onto a low-dimensional subspace using different hyper-reduction procedures. The method provides fast and highly accurate reduced order models for stationary and transient, Newtonian and Non-Newtonian EHD line and point contact problems.
    Keywords: T1-995 ; EHD ; Modellordnungsreduktion ; Newton-Raphson method ; model order reduction ; Newton-VerfahrenEHD ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 52
    Publication Date: 2024-04-09
    Description: This work describes the OFDM-based MIMO Radar-Communication System, intended for operation in a multiple-user network, especially the automotive sector in the vehicle-to vehicle/infrastructure network. The OFDM signals however are weak towards frequency offsets causing subcarrier misalignment and corrupts the radar estimation and the demodulation of the communication signal. A simple yet effective interference cancellation algorithm is detailed here with real time measurement verification.
    Keywords: T1-995 ; Multi-user network ; OFDM ; Radar ; Interference ; Radar-Communication System ; Mehrbenutzer NetwerkRadar ; Interferenz ; Radar-Kommunikations System ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 53
    Publication Date: 2024-04-09
    Description: The linear and nonlinear resonance behaviour of optical antennas (metallic nanostructures showing resonance behaviour at optical frequencies) made of gold and aluminum using electron-beam lithography is investigated. Specifically, it is of interest how the emission behaviour is changed by the coupling of two antenna arms via a small gap. Experimental techniques applied include dark-field spectroscopy and two-photon luminescence.
    Keywords: T1-995 ; plasmonics ; two-photon luminescence ; nanostructure ; resonance ; optical antenna ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 54
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    KIT Scientific Publishing
    Publication Date: 2024-04-09
    Description: The goal of technology assessment (TA) is to lend support to society and policy making by promoting understanding of the problems related to the grand sociotechnical challenges of our time, as well as to assess the available options for managing them. Researchers from Japan and Europe reflected together in this book on country-specific developments to identify the conditions that must be present to anchor TA in science, politics, and society. This book helps us to learn about different cultures.
    Keywords: T1-995 ; GesellschaftTechnology Assessment ; Policy Advice ; Technikfolgenabschätzung ; Society ; Inter-disciplinary Research ; interdisziplinärer Forschung ; Politikberatung ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 55
    Publication Date: 2024-04-09
    Description: Based on physiological data, intelligent algorithms can assist with the classification and recognition of the most severely impaired victims. This book presents a new sensorbased triage platform with the main proposal to join different sensor and communications technologies into a portable device. This new device must be able to assist the rescue units along with the tactical planning of the operation. This work discusses the implementation and the evaluation of the platform.
    Keywords: T1-995 ; Biosignalverarbeitung ; Biosensoren ; wearable device ; ad-hoc networks ; emergency response ; Notfallmanagement ; biosignal ; biosensors ; Ad-hoc Netzwerk ; tragbares Gerät ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 56
    Publication Date: 2024-04-09
    Description: In this work the feasibility of a 4 MW 170 GHz coaxial-cavity gyrotron for continuous wave operation is demonstrated. For the first time complete physical designs of the major gyrotron components are elaborated. In a first step, one possible new operating mode is determined, followed by the development of detailed physical designs of the major gyrotron components: Diode and triode type electron gun, coaxial cavity, two-beam quasi-optical output coupler and depressed collector.
    Keywords: T1-995 ; coaxial ; gyrotron ; cavity ; two beam ; 4 MW ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 57
    Publication Date: 2024-04-09
    Description: Measurement at millimeter-wave frequencies are prone to parasitic effects which distort the overall results. Especially the use of RF probes introduces unknown distortions, even after the measurement setup is calibrated. This works investigates these distortions based on electromagnetic field simulations of integrated circuits in conjunction with models of the used RF probes. This allows to comprehend the observed distortions and successfully resolve the root of the distortions.
    Keywords: T1-995 ; On-Wafer Measurements ; Monolithic Microwave Integrated Circuits ; Halbleiterschaltungen ; Messtechnik ; Hochfrequenztechnik ; Electromagnetic Field Simulation ; Elektromagnetische Feldsimulation ; Radio Frequency ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 58
    Publication Date: 2024-04-09
    Description: A specific cost-efficient type of plain journal bearing is the porous journal bearing, which possesses a pervious bush that serves as a lubricant reservoir. The current work is concerned with modeling porous journal bearings in multibody systems, for which dynamical models are needed to investigate the bearing’s behavior. Such porous journal bearing models as well as models of elementary rotor-bearing systems including these, were developed and investigated during the course for this work.
    Keywords: T1-995 ; mixed lubrication ; multibody systems ; porous journal bearing ; nonlinear dynamics ; rotor dynamics ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 59
    Publication Date: 2024-04-09
    Description: This book enhances economic methods for social cost-benefit analysis of air pollution control measures at point emission sources. A new and highly resolved health damage cost assessment framework is developed and applied, notably in order to evaluate the influence of site-dependent and generic methodological choices. Several of these are shown to have a major impact on resulting health damage costs with important implications for decision-making.
    Keywords: T1-995 ; externalities ; Kosten-Nutzen-Analyse ; cost-benefit analysis ; Emissionsminderungsmaßnahmen ; Gesundheitsschadenskosten ; air pollution ; health damage costs ; Luftverschmutzung ; Externalitäten ; pollution control measures ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 60
    Publication Date: 2024-04-09
    Description: All-optical wavelength converters (AOWC) are considered key to overcome wavelength blocking issues in next generation transparent networks. The focus of this book is on semiconductor optical amplifiers (SOA), a mature nonlinear element with very favorable nonlinear characteristics, and on a discussion of various filter configurations as well as on their adaptations for providing optimum performance matched to the nonlinear element working in high-speed all-optical wavelength converters.
    Keywords: T1-995 ; Semiconductor Optical Amplifier ; Time Division Multiplexing ; Optical Communication ; Wavelength Division Multiplexing ; All-Optical Wavelength Conversion ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 61
    Publication Date: 2024-04-09
    Description: Core topics of the work are the vehicle access systems such as PAssive Start and Entry (PASE), Remote Keyless Entry (RKE) as well as Tyre Pressure Monitoring System (TPMS). Two goals are followed: the development of antennas and functionality analysis from RF (Radio Frequency) point of view and improvement of system parts. The overall objective of this work is to advance the state-of-the-art vehicular electromagnetic simulation taking into account the vehicle body and nearest surroundings.
    Keywords: T1-995 ; RF modelling ; Simulation ; TPMS ; Reifendruckkontrolle ; simulation ; PASE ; automotive antenna ; Antenne ; Zugangssysteme ; Fahrzeugtechnik ; RKE ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 62
    Publication Date: 2024-04-09
    Description: Ink-jet printed devices on the flexible substrate are inexpensive and large area compatible as compared to rigid substrates. However, during fabrication and service they are subjected to complex strains, resulting in crack formation or delamination within the layers, affecting the device performance. Therefore, it is necessary to understand their failure mechanisms by correlating their electrical or structural properties with applied strain, supported by detailed microstructural investigations.
    Keywords: T1-995 ; elektromechanische Charakterisierung ; flexible Elektronik ; thin-film devices ; Ink-jet printing ; flexible electronics ; synchrotron X-ray diffraction ; Dünnschichtbauteil ; Ink-jet drucken ; Synchrotron-Röntgenbeugung ; electro-mechanical characterization ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 63
    Publication Date: 2024-04-09
    Description: This work addresses major challenges of heart model personalization. Analysis techniques for clinical intracardiac electrograms determine wave direction and conduction velocity from single beats. Electrophysiological measurements are simulated to validate the models. Uncertainties in tissue conductivities impact on simulated ECGs. A minimal model of cardiac myocytes is adapted to the atria. This makes personalized cardiac models a promising technique to improve treatment of atrial arrhythmias.
    Keywords: T1-995 ; Atrial fibrillation ; Intracardiac electrograms ; Model personalization ; Cardiac modelling ; Electroyphsiology ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 64
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    KIT Scientific Publishing
    Publication Date: 2024-04-09
    Description: This work introduces novel techniques for the fabrication of bio-inspired hierarchical micro- and nanostructures. The enormous potential of these techniques is demonstrated by presenting a synthetic gecko-like adhesive matching the adhesion and self-cleaning of geckos very closely and a nanofur which is superhydrophobic, superoleophilic, underwater air-retaining, and even self-healing when surface treated.
    Keywords: T1-995 ; biomimetics fabrication adhesion wetting gecko ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 65
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    KIT Scientific Publishing
    Publication Date: 2024-04-09
    Description: The new concept for mobile environmental education extends the traditional media-based environmental interpretation by means of a mobile context-aware computer. This mobile nature guide system can assist its user during self-determined exploration by adapting its presentation to the usage situation, preferences and current environmental conditions. The impact of the prototype mobile nature guide on environmental literacy and user satisfaction has been compared to traditional media in the field.
    Keywords: T1-995 ; Kontextbezogenes System ; Navigation ; mobile maps ; environmental interpretation ; environmental literacy ; E-Learning ; LBSMobile nature guide ; Umweltpsychologie ; impact evaluation ; Umweltinformationssystem ; Mobile Computing ; Umweltinformatik ; PDA ; context-awareness ; Naturentfremdung ; EvaluationMobiler Naturführer ; GIS ; Kartographie ; Umwelterziehung ; Umweltbewusstsein ; Naturerlebnis ; Umweltinterpretation ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 66
    Publication Date: 2024-04-09
    Description: This work presents three new quantitative methods for magnetic resonance imaging. A method for simultaneous mapping of B1 and T1 (MTM) is developed and validated. Electric Properties Tomography (EPT), a method for quantitative imaging of dielectric properties of tissue, is presented. Based on EPT, separate (phase-based) conductivity and (amplitude-based) permittivity measurements are introduced. Finally, a B1-based method for patient-specific local SAR measurements is presented.
    Keywords: T1-995 ; Magnetic Resonance Imaging ; permittivity imaging ; conductivity imaging ; local specific absorption rate imaging ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 67
    Publication Date: 2024-04-09
    Description: Mass-spring systems are considered the simplest and most intuitive of all deformable models. They are computationally efficient, and can handle large deformations with ease. But they suffer several intrinsic limitations. In this book a modified mass-spring system for physically based deformation modeling that addresses the limitations and solves them elegantly is presented. Several implementations in modeling breast mechanics, heart mechanics and for elastic images registration are presented.
    Keywords: T1-995 ; heart modeling ; mechanical modeling ; breast modeling ; image registration ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 68
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    KIT Scientific Publishing
    Publication Date: 2024-04-09
    Description: Nuclear fusion is considered as a future source of sustainable energy supply. Since the H-mode discovery in ASDEX experiment ""Divertor I"" in 1982, the divertor has been an integral part of all modern tokamaks and stellarators. The major goal of this thesis is to develop a feasible divertor design for a fusion power plant to be built after ITER. The thesis describes the approach in the conceptual development of a helium-cooled divertor and the methods of verification and validation of the design.
    Keywords: T1-995 ; machining and joining tungsten ; Fusion power plant ; high heat flux tests ; helium impingement cooling ; helium-cooled divertor ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 69
    Publication Date: 2024-04-09
    Description: Main objective of this work is to develop, by systematic variation of the chemical composition, and TMP, 14% Cr nano-structured ferritic alloys with significantly improved high-temperature properties compared to currently available ODS alloys. Application of state-of-the-art characterization tools shall lead to an integrated understanding of structure-property correlation and the formation mechanism of nanoparticles.
    Keywords: T1-995 ; thermal-mechanical processing ; ODS ferritic steel ; low cycle fatigue ; X-ray absorption fine structure ; transmission electron microscopy ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 70
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    KIT Scientific Publishing
    Publication Date: 2024-04-09
    Description: Organic photovoltaic is an attractive technology to solve future energy supply scenarios. To further increase the potential of this technology novel absorber materials and interface materials have to be developed. In this work the paramount importance of interface materials for efficient as well as stable organic photovoltaic cells and modules is demonstrated. The general requirements of interface materials are elaborated and properties of a novel interface material which meets the demands are investigated experimentally and by simulations.
    Keywords: T1-995 ; Interfaces ; S-shape ; Hot spots ; Organic photovoltaic ; Low light ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 71
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    KIT Scientific Publishing
    Publication Date: 2024-04-09
    Description: For the analysis and optimization of the picosecond pulsed terahertz radiation generated by electron storage rings or other pulsed sources, ultra-fast detectors are required which are able to resolve picosecond dynamic processes directly in the time domain. In this book, a new direct terahertz detector technology based on the high-temperature superconductor YBa2Cu3O7-x has been developed which opens new routes in the analysis of picosecond time-domain processes with a wide dynamic range.
    Keywords: T1-995 ; terahertz detector ; picosecond temporal resolution ; high-temperature superconductivity ; synchrotron radiation ; electron storage rings ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 72
    Publication Date: 2024-04-09
    Description: Future access networks are converged optical-wireless networks, where fixed-line and wireless services share the same infrastructure. In this book, semiconductor optical amplifiers (SOA) and mm-wave wireless links are investigated, and their use in converged access networks is explored: SOAs compensate losses in the network, and thereby extend the network reach. Millimeter-wave wireless links substitute fiber links when cabling is not economical.
    Keywords: T1-995 ; converged access networks ; optische Halbleiterverstärker ; konvergierte Zugangsnetzesemiconductor optical amplifiers ; Millimeterwellen-Funkverbindungen ; mm-wave wireless links ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 73
    Publication Date: 2024-04-09
    Description: A software-defined optical Tx is designed and demonstrated generating signals with various formats and pulse-shapes in real-time. Special pulse-shapes such as OFDM or Nyquist signaling were utilized resulting in a highly efficient usage of the available fiber channel bandwidth. This was achieved by parallel data processing with high-end FPGAs. Furthermore, highly efficient Rx algorithms for carrier and timing recovery as well as for polarization demultiplexing were developed and investigated.
    Keywords: T1-995 ; parallel processing with FPGA ; Optical communications ; coherent systems ; Parallele Prozessierung mit FPGA ; real-time transmitters and receivers ; Optische Nachrichtentechnik ; Kohärente Systeme ; Digitale Signalprozessierung ; digital signal processing ; Echtzeitfähige Sender und Empfänger ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 74
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    KIT Scientific Publishing
    Publication Date: 2024-04-09
    Description: Multi-camera systems are being deployed in a variety of vehicles and mobile robots today. To eliminate the need for cost and labor intensive maintenance and calibration, continuous self-calibration is highly desirable. In this book we present such an approach for self-calibration of multi-Camera systems for vehicle surround sensing. In an extensive evaluation we assess our algorithm quantitatively using real-world data.
    Keywords: T1-995 ; Surround Sensing ; UmfelderfassungSelf-calibration ; Extrinsic Calibration ; Extrinsische Kalibrierung ; Multi-Camera System ; Selbstkalibrierung ; Multikamerasystem ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 75
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    KIT Scientific Publishing
    Publication Date: 2024-04-09
    Description: Nowadays, the development of magnetic data storage devices technique faces fundamental limitations which lead to a slow-down of the increase of areal storage density. Therefore, magnetoelectric coupling which allows to change the magnetic state of matter by means of an electric field attracted significant interest. In this work, scanning tunneling microscopy was used to show for the first time that magnetic information can be written on the nanometer scale by the application of electric fields.
    Keywords: T1-995 ; magnetoelectric ; Iron ; electric field ; STM ; nanomagnetism ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
    Language: English
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  • 76
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    KIT Scientific Publishing
    Publication Date: 2024-04-09
    Description: This book therefore proposes a new philosophy of Grid usage: provide virtual computing environments for Grid users. The new methodology could solve the problems currently encountered by Grid computing. It supports desired computing environments for users, which provide customized hardware/software configuration, QoS assurance and manageable functionality. This philosophy also liberates resource providers from the various onerous tasks of resource management.
    Keywords: T1-995 ; virtual machine ; virtual environment ; Grid computing ; cloud computing ; distributed computing ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
    Language: English
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  • 77
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    KIT Scientific Publishing
    Publication Date: 2024-04-09
    Description: Currently, companies have covered their business processes with stationary workstations while mobile business applications have limited relevance. Companies can cover their overall business processes more time-efficiently and cost-effectively when they integrate mobile users in workflows using mobile device features. The objective is a framework that can be used to model and control business applications for PLM processes using mobile device features to allow a totally new user experience.
    Keywords: T1-995 ; Product Development ; ProduktentwicklungProduct Lifecycle Management (PLM) ; Produktlebenszyklusmanagement (PLM) ; Produktdatenmanagement (PDM) ; Product Data Management (PDM) ; Mobile Gerätefeature ; Mobile Device Feature ; Framework ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 78
    Publication Date: 2024-04-09
    Description: To create photonic multi-chip modules, integrated photonic chips need to be connected internally and to external glass fibers. A novel approach to address this task is the concept of photonic wire bonding, where free-standing polymer waveguides are printed in-situ by two-photon polymerization. This book contains a detailed description of the methodology of photonic wire bonding together with a number of key experiments.
    Keywords: T1-995 ; optische Aufbau- und Verbindungstechnik ; Photonic Wire Bonding ; optical interconnects ; photonic integrated circuits ; integrierte Photonik ; Silizium-Photonik ; silicon photonics ; photonic wire bonding ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 79
    Publication Date: 2024-04-09
    Description: Single crystalline, µm-sized cantilevers are fabricated out of epitaxially grown Ag thin films by a lithography-based procedure and are deflected by a nanoindenter system. The microstructure of the plastically deformed cantile-vers is investigated using transmission Kikuchi diffraction (TKD) on the cantilever cross section. 3D discrete dislocation dynamics simulations (DDD) are performed for further analysis. A mechanism to explain the formation of dislocation networks upon loading is suggested.
    Keywords: T1-995 ; Größeneffekt ; Size effect ; Micro plasticity ; Biegebalken ; Cantilever bending ; Mikroplastizität ; Nanoindenter ; Transmission Kikuchi Diffraction ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 80
    Publication Date: 2024-04-09
    Description: This book is a contribution to the further development of gradient plasticity. Several open questions are addressed, where the efficient numerical implementation is particularly focused on. Thebook inspects an equivalent plastic strain gradient plasticity theory and a grain boundary yield model. Experiments can successfully be reproduced. The hardening model is based on dislocation densities evolving according to partial differential equations taking into account dislocation transport.
    Keywords: T1-995 ; Größeneffekt ; crystals ; hardening ; Plastizität ; Verfestigung ; Kristalle ; plasticity ; Versetzungen ; size effect ; Dislocations ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 81
    Publication Date: 2024-04-09
    Description: Ultrasound excitation of structural steel members leads to localised energy dissipation at existent fatigue cracks and thus allows for thermographic flaw detection. Essential effects on the defect-selective heating, such as flaw size, plate thickness, crack mouth opening or static preload, are systematically investigated. Laser vibrometry measurements of the crack edges, theoretical modelling of frictional heating and numerical simulations contribute to the understanding of the involved physics.
    Keywords: T1-995 ; infrared thermography ; ultrasound excitation ; Ermüdungsriss ; Stahlbau ; Zerstörungsfreie Prüfung ; Ultraschallanregung ; steel construction ; fatigue crack ; Infrarotthermografienon-destructive testing ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 82
    Publication Date: 2024-04-09
    Description: This work presents a method to detect and classify varnish defects on wood surfaces. Since these defects are only partially visible under certain illumination directions, one image doesn't provide enough information for a recognition task. A classification requires inspecting the surface under different illumination directions, which results in image series. The information is distributed along this series and can be extracted by merging the knowledge about the defect shape and light direction.
    Keywords: T1-995 ; detection ; illumination ; image series ; invariant features ; classification ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 83
    Publication Date: 2024-04-09
    Description: The increasing demand for powerful, reliable, and efficient gyrotron oscillators for Electron Cyclotron Resonance Heating (ECRH) in fusion plasma experiments requires a close look at the various factors in gyrotrons that determine gyrotron performance. In this frame, the influence of emitter surface roughness, emission inhomogeneity, and secondary electron generation on gyrotron operation is presented, with focus on Low Frequency Oscillations (LFOs) and Electron Beam Halo (EBH) generation.
    Keywords: T1-995 ; Strahlsysteme ; Emitter ; Low Frequency Oscillations ; Magnetron Injection Gun ; Gyrotron ; Electron Beam Halo ; Electron Beam HaloGyrotron ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 84
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    KIT Scientific Publishing
    Publication Date: 2024-04-09
    Description: The automatic retrieval of images according to the similarity of their content is a challenging task with many application fields. In this book the automatic retrieval of images according to human spontaneous perception without further effort or knowledge is considered. A system is therefore designed and analyzed. Methods for the detection and extraction of regions and for the extraction and comparison of color, shape, and texture features are also investigated.
    Keywords: T1-995 ; Texturmerkmale ; color features ; similarity comparisons ; Inhaltsbasierte Bildsuche ; texture features ; Formmerkmale ; Content-based image retrieval ; form features ; Ähnlichkeitsvergleich ; Farbmerkmale ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 85
    Publication Date: 2024-04-09
    Description: This textbook on fluid mechanics is aimed at engineering students at Bachelor's degree level. In Chapter 2 the fundamentals of fluid mechanics, needed for the description and analysis of flows in technology, are presented. One-dimensional stream filament theory, along with the momentum integral and angular momentum integral equations, already present us with one method of constructing fluid technological appliances and experiments. For example, the dimensions of a machine can be determined quite accurately in one first step and predictions made about the flow losses which occur.However, these methods fail when machines are to be optimized, or when appliances are to be developed to operate under extreme conditions, such as silent operation, high efficiency, small dimensions, greatly damped oscillatory behavior, etc. In addition to this, even for most simple cases of application, simple fluid mechanical fundamentals cannot determine the operating behavior of a machine accurately enough. This requires extensive experiments to be carried out and these can be very costly and time consuming.At this point we refer to more detailed textbooks which progress systematically from the fundamental fluid mechanical equations and their methods of solution to the application of fluid mechanical software.The methods used in fluid mechanics are analytical, numerical and experimental. Although numerical methods are increasingly used to replace experimental methods, all three are still needed to solve fluid mechanical problems. This book is restricted to theoretical, that is analytical, methods. After working through this book, students are qualified to understand the basics and phenomena of fluid mechanics, and will have obtained an initial insight into fluid mechanical software, even if further studies into the fundamental equations of fluid mechanics and numerical methods are necessary for the application of this software.The composition of this book is partly very theoretical. In order not to lose sight of the connection to technical applications during the extensive derivations, we have selected flows past airplane wings, flows past vehicles and flows in pipes of process engineering systems as representative examples to illustrate the basics of one-dimensional fluid mechanics.We now introduce the student to the great variety of fluid mechanical applications, demonstrating that flows are all around us in our technological environment, by describing selected examples of flows in the following introductory sections.
    Keywords: T1-995 ; Lehrbuch ; Strömungsmechanik ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 86
    Publication Date: 2024-04-09
    Description: Superconducting Nanowire Single-Photon Detectors offer the capability to detect electromagnetic waves on a single photon level in a wavelength range that far exceeds that of alternative detector types. However, above a certain threshold wavelength, the efficiency of those detectors decreases stronlgy, leading to a poor performance in the far-infrared range. Influences on this threshold are studied and approaches for improvement are verified experimentally by measurement of the device performance.
    Keywords: T1-995 ; SuperconductorDetectorNanotechnologyDissertation ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 87
    Publication Date: 2024-04-09
    Description: In freeform optics, the optimization is limited due to large number of parameters present in it. This limitation was overcome by a technique known as optimization using freeform deformation (OFFD). Though this technique proved to work well, it has left many challenges to the optical designer. These challenges are solved by providing mathematical design techniques. This implementation transformed the OFFD into an intelligent tool replacing the optical designer's efforts during the design process.
    Keywords: T1-995 ; Deformation ; Optics Design ; Optik Design ; Beleuchtung ; Illumination ; LED ; Freeform optics ; Freiform Optik ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 88
    Publication Date: 2024-04-09
    Description: This scientific work is designated to provide an innovative and integrated conceptional approach to improve the assembly quality of automotive electronics. This is achieved by the reduction and elimination of production related risks of automotive electronics and the implementation of a sustainable solution process. The focus is the development and implementation of an integrated technical risk management approach for automotive electronics throughout the vehicle life cycle and the vehicle production planning process.
    Keywords: T1-995 ; Wissensmanagement ; Risikomanagement ; Produktgestaltung / Standardisierung ; Fallbasiertes Schließen ; Methodologie ; Kraftfahrzeugelektrik ; Technisches Risikomanagement ; Produktionsgerechte Produktgestaltung ; Fahrzeugindustrie ; Montage ; Ganzheitliche Methodik ; Produktion ; Elektrik / Elektronik ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 89
    Publication Date: 2024-04-09
    Description: The present work shows the development, optimization and application of biomicrofluidic chips. The developed microfluidic chios are used to (1) analyze the stem cell differentiation, (2) produce valuable substances via metabolic engineering and (3) the fabrication of polymeric films possessing a gradient of morphology. All structures are build up from two elementary structures and all microstructured parts are normalized to the size of a microscope glass slide.
    Keywords: T1-995 ; Stammzelle ; Pflanzenzelle ; Thermobonden ; Heißprägen ; Polycarbonat ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 90
    Publication Date: 2024-04-09
    Description: In order to develop a driver assistance system for pedestrian protection, pedestrians in the environment of a truck are detected by radars and a camera and are tracked across distributed fields of view using a Joint Integrated Probabilistic Data Association filter. A robust approach for prediction of the system vehicles trajectory is presented. It serves the computation of a probabilistic collision risk based on reachable sets where different sources of uncertainty are taken into account.
    Keywords: T1-995 ; Trajectory Prediction ; Radar and Camera ; Pedestrian ; Sensor Data Fusion ; Risk Assessement ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 91
    Publication Date: 2024-04-09
    Description: A general analytical travel time model for the quadruple command cycle in double deep storage systems with a dual capacity load handling device is formulated and validated by means of a simulation model. Various routing and sequencing strategies are composed. A simulation model is used to compare strategies for differnt AS/RS configurations and settings to assess them in consideration of real-world cases. For selected strategies, analytical formulations are derived.
    Keywords: T1-995 ; Travel-time models ; Travel-time determintation ; AS/RS ; Spielzeitberechnung ; automatische Lagersysteme ; Spielzeitmodelle ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 92
    Publication Date: 2024-04-09
    Description: In this book a test set for dielectric measurements at 2.45 GHz during curing of polymer composites is developed. Fast reconstruction is solved using a neural network algorithm. Modeling of the curing process at 2.45 GHz using both dielectric constant and dielectric loss factor results in more accurate model compared to low frequency modelling that only uses the loss factor. Effect of various hardeners and different amount of filler is investigated.
    Keywords: T1-995 ; Online-Überwachung der Aushärtungdielectric measurement ; microwave characterization ; online monitoring of curing ; dielektrische Messungen ; Aushärtung von Polymerkompositen ; Mikrowellen-Charakterisierung ; curing model ; Aushärtung Modell ; polymer composite curing ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 93
    Publication Date: 2024-04-09
    Description: This work is focused on different aspects within the loop of multiscale modeling:On the cellular level, effects of adrenergic regulation and the Long-QT syndrome have been investigated.On the organ level, a model for the excitation conduction system was developed and the role of electrophysiological heterogeneities was analyzed.On the torso level a dynamic model of a deforming heart was created and the effects of tissue conductivities on the solution of the forward problem were evaluated.
    Keywords: T1-995 ; Forward Calculation ; Electrophysiological Heterogeneities ; Multiscale Modeling ; Cardiac Electrophysiology ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 94
    Publication Date: 2024-04-09
    Description: The utilization of thermodynamic and mobility data plays a major role in phase-field modeling. This work discusses different formulations for the thermodynamic quantities of a grand potential model along with practices to determine parameters from datasets. The framework is used to study solidification of Al-Si-Mg for a variation of composition, diffusivities and surface energy anisotropies. To verify the simulations, they are compared with solidification theories.
    Keywords: T1-995 ; Erstarrung CALPHAD Phasenfeld-Methode Simulation MaterialwissenschaftSolidification CALPHAD Phasefield-method Simulation Material-science ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 95
    Publication Date: 2024-04-09
    Description: Half of the patients suffering from atrial fibrillation (AF) cannot be treated adequately, today. This book presents multi-scale computational methods to advance our understanding of patho-mechanisms, to improve the diagnosis of patients harboring an arrhythmogenic substrate, and to tailor therapy. The modeling pipeline ranges from ion channels on the subcellular level up to the ECG on the body surface. The tailored therapeutic approaches carry the potential to reduce the burden of AF.
    Keywords: T1-995 ; atrial fibrillation ; P-wave ; Vorhof ; electrophysiology ; Computermodell ; Elektrophysiologie ; Vorhofflimmerncomputational modeling ; atria ; P-Welle ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 96
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    KIT Scientific Publishing
    Publication Date: 2024-04-09
    Description: Biosensors are devices that utilize biological recognition elements to selectively detect and analyze specific biological and chemical analyte substances. In this work a technology platform for label-free optical biosensors based on surface-functionalized photonic crystal slabs is proposed. Using this technology platform, low-cost solutions for three biotechnical questions are presented.
    Keywords: T1-995 ; biosensor ; lab-on-a-chip ; affinity kinetics ; photonic crystal ; contrast enhancement ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
    Language: English
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  • 97
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    KIT Scientific Publishing
    Publication Date: 2024-04-09
    Description: In this book, silicon photonic integrated circuits are combined with electro-optic organic materials for realizing energy-efficient modulators with unprecedented performance. These silicon-organic hybrid Mach-Zehnder modulators feature a compact size, sub-Volt drive voltages, and they support data rates up to 84 Gbit/s. In addition, a wet chemical waveguide fabrication scheme and an efficient fiber-chip coupling scheme are presented.
    Keywords: T1-995 ; elektro-optische Modulatoren ; photonic integrated circuit ; Silizium-Photonik ; Pockel's effect ; ChromophorSilicon photonic ; electro-optic modulators ; chromophore ; integrierte Optik ; Pockels-Effekt ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 98
    Publication Date: 2024-04-09
    Description: CAE ProNet methodology is to develop CAE network considering interdependencies among digital validations. Utilizing CAE network and considering industrial requirements, an algorithm is applied to execute a product, vehicle development phase, and load case priority oriented CAE process. Major advantage of this research work is to improve quality of simulation results, reducing time-to-market and decreasing dependencies on hardware prototype.
    Keywords: T1-995 ; Multiphysics Simulation ; CAE-Process ; CAE-Network ; CAE-ProNet Application ; Simulation Data Management ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
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  • 99
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    KIT Scientific Publishing
    Publication Date: 2024-04-09
    Description: Transient voltages occur on the terminals of superconducting coils and may lead to internal over-voltages. The main objective of this work was to calculate the transient electrical behaviour and internal voltage distribution within the ITER poloidal field (PF) coils at four scenarios and was made using the PF 3 and PF 6 coils as examples. The calculated maximum voltages will be used for definition of amplitudes and voltage waveforms for the tests of the high-voltage insulation of the coils.
    Keywords: T1-995 ; high-voltage insulation ; Superconducting coils ; transient voltages ; FEM and network calculations ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
    Language: English
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  • 100
    Publication Date: 2024-04-09
    Description: Custom built setups were developed to investigate micro samples during quasistatic and cyclic testing in tension, compression and bending. Micro molded CuAl10Ni5Fe4-samples showed similar fatigue behavior compared to macroscopic samples due to both the sample size and microstructure being scaled down with the manufacturing process. Results from cyclic three-point bending tests on micro molded 3Y-TZP suggested that a minimum crack extension is necessary to develop cyclically degradable shielding.
    Keywords: T1-995 ; Ermüdung Mikroguss Aluminiumbronze Zirkonoxid Apparaturresonance custom-built setup microstructure 3Y-TZP ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
    Language: English
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