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  • thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials  (61)
  • thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TC Biochemical engineering::TCB Biotechnology  (54)
  • Erdbeben
  • FID-GEO-DE-7
  • Geophysik
  • KIT Scientific Publishing  (124)
  • Friedr. Vieweg & Sohn, Braunschweig  (18)
  • Selbstverl. des Inst. für Phys. Geographie der Freien Univ. Berlin, Berlin  (5)
  • German  (147)
  • Spanish  (1)
Collection
Keywords
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Language
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  • 1
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    Verhaltensentscheidung für automatisierte Fahrzeuge mittels Arbitrationsgraphen (2024)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: This work proposes a system architecture for secure and robust behavioral decision-making for automated vehicles. It assembles basic behavior blocks in a hierarchical arbitration graph and ensures safety through verification and diverse levels of fallback. The presented method contributes to a transparent and comprehensible decision-making process and produces safe and stable driving behavior even at high failure rates.
    Keywords: safety verification; automated driving; hierarchical arbitration graphs; behaviour planning; decision-making; Verifikation; automatisiertes Fahren; hierarchische Arbitrationsgraphen; Verhaltensplanung; Verhaltensentscheidung ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 2
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    Methode zur Ermittlung optimaler Rad- und Reifendimensionen in der frühen Entwicklungsphase von Personenkraftwagen (2024)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: In the context of the present work methods are developed, which allow the statistical estimation of feasible ranges of functional tyre characteristics for any combination of rim and tyre dimension under different operating conditions. Therefore, measurement data regarding energy efficiency, driving dynamics and comfort are statistically analyzed and interpreted with regard to their physical root causes.
    Keywords: Functional Tyre Characteristics (FTC); Rim dimension; Tyre dimension; Rim; Tyre; Funktionale Reifeneigenschaften (FTC); Raddimension; Reifendimension; Rad; Reifen ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 3
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    Zur Wechselwirkung zwischen Fahrbahntextur und Laufstreifenmischung von Pkw-Reifen (2023)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: This work aims to gain an understanding of the interactions between tread compounds and surface texture on dry and wet road conditions. If, for example, a corundum surface, which is very well-established in the tire industry, is used on the tire test bench instead of a real track surface, for wet track conditions ranking inversions in the tested compounds occur.
    Keywords: PKW-Reifen; Laufstreifenmischung; Fahrbahntextur; Kraftübertragung; Passenger Car; Tire Tread Compound; Road Surface Texture; Traction ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 4
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    Proceedings - 33. Workshop Computational Intelligence (2023)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: The workshop proceedings contain the contributions of the 33rd workshop "Computational Intelligence" which will take place from 23.11. - 24.11.2023 in Berlin. The focus is on methods, applications and tools for Fuzzy systems, Artificial Neural Networks, Evolutionary algorithms and Data mining methods as well as the comparison of methods on the basis of industrial and benchmark problems.
    Keywords: Modelling and Simulation; Fuzzy Systems; Artificial Intelligence; Maschine Learning; Modellierung und Simulation; Computational Intelligence; Fuzzy Systeme; Künstliche Intelligenz; Maschinelles Lernen ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: English , German
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  • 5
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    Vibroakustische Analyse eines elektrischen Radnabenmotors und Optimierung durch geeignete Steuerungsansätze (2023)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: This work deals with the mechanisms of disturbing noises at the electric wheel hub motor and describes a multiphysical model which simulates them. From this, countermeasures are derived and evaluated. A vibroacoustical optimized control approach, was developed and applied to the system. Furthermore, limitations and the interaction of the optimized control approach with the motor control are examined more detail.
    Keywords: elektrische Maschine; NVH; Akustik; HCI; Radnabenmotor; electric machine; acoustic; wheel hub motor ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 6
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    Hybride und energieeffiziente Antriebe für mobile Arbeitsmaschinen (2023)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: This book contains the conference proceedings to the lectures of the 9th symposium on 28th February 2023 in Karlsruhe. The state of research and new developments in the field of drive technology for mobile machines are reported in 12 articles. The conference proceedings are characterized by technical contributions on climate-neutral, efficiency-optimized and electrified drives in a variety of machines. In addition to traction drives, drive systems for performing work tasks are also addressed.
    Keywords: Hybrid; Antrieb; Mobile Arbeitsmaschine; Elektrifizierung; Klimaneutrale Antriebe; Drive Technology; Mobile Machine; Electrification; Climate-neutral drives ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 7
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    Entwicklung und Charakterisierung von Siliziumnitrid-/Siliziumkarbidkompositen für den Einsatz in tribologisch hochbeanspruchten Gleitsystemen (2023)
    KIT Scientific Publishing | KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: In this work, silicon nitride/silicon carbide composites are manufactured and characterized for tribologically highly stressed applications. The characterization of the composite materials shows the influence of the silicon carbide content on the resulting microstructure and the mechanical properties. The friction properties of the composite materials were characterized in tribological experiments. The composites show very good friction and wear behavior.
    Keywords: Siliziumnitrid ; Siliziumkarbid ; technische Keramik ; keramische Prozesstechnik ; Tribologie ; silicon nitride ; silicon carbide ; technical ceramics ; ceramic process technology ; tribology ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 8
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    Methode zur Bewertung der Zuverlässigkeit der elektrischen Energieversorgung in der automobilen Vorentwicklung (2023)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: With the introduction of highly automated assistance systems in passenger cars, the requirements for the reliability of the electrical power supply increase significantly. In this thesis, a method for evaluating the reliability of the electrical power supply in automotive pre-development is presented and applied. As a result, it could be shown that the classical electrical power supply is not suitable for supplying highly automated assistance systems.
    Keywords: pre-development; Vorentwicklung; energy supply; Reliability; Zuverlässigkeit; Energieversorgung ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 9
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    Entwicklung keramischer Vergussmassen mit Alkoxysilanen zur Steigerung der Haftfestigkeit (2023)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: The adhesion of encapsulation materials is an dendrimental factor for the robustness and functionality of a power electronic device. In this work the adhesion of ceramic potting materials was developed. A new primer was invented, that enabled high shear strengths even at high temperatures for short times. Furthermore, a completely new potting material was invented on the basis of alkoxysilanes. Especially MTES showed beneficial properties for the adhesion under temperature load.
    Keywords: Vergussmasse; Scherfestigkeit; Primer; Alkoxysilan; Leistungselektronik; Potting Material; Shear Strength; Alkoxysilane; Power Electronics ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 10
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    Indirekte Schätzung des Fahrbahnnässegrads zur Detektion von gefährlichen Fahrzuständen (2023)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: An estimation of the road wetness level supports the driver as well as the vehicle to maneuver safely. This study presents the fundamentals of a system that uses structure-borne sound measurements at various positions on the vehicle to detect the water spraying up from the tires and uses this information to estimate the degree of road wetness. The system finds its first application in the Porsche 911, Type 992.
    Keywords: Fahrbahnnässe; Fahrzeugsicherheit; Wasseraufwirbelung; Road wetness; Vehicle safety; Tire splash and spray ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 11
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    Entwicklung und Evaluierung einer Kommunikationsgestützten Lokalisierung (2023)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: The content of this work is the development of a localization system, which enables several driverless transport vehicles to navigate locally in a highly flexible and free way. The ceiling mounted sensor system detects and analyzes objects within the field of view. The detected properties of all objects are made available via an interface and enable vehicles to identify themselves and navigate freely without a sensor mounted on the vehicle.
    Keywords: Lokalisierung; fahrerlose Transportfahrzeuge; 3D-Kamera; Objekterkennung; Kommunikation; Localization; automated guided vehicles; 3D camera; object recognition; communication ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 12
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    Numerische Modellierung und Simulation von bleifreien Relaxor-Ferroelektrikum-Kompositen (2023)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: The electromechanical behavior of two new sodium bismuth titanate based lead-free ferroelectric materials as well as bilayer composites are investigated in experiments and numerical simulations. For the Finite-Element-Method, a fully coupled, three dimensional ferroelectric constitutive model is developed. In a parameter study, the electromechanical coupling of bilayer composite is optimized.
    Keywords: Finite-Elemente-Simulation ; Piezoelektrizität ; Ferroelektrizität ; bleifreie Ferroelektrika ; Piezoelectricity ; Ferroelectricity ; Lead-Free Ferroelectrics ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 13
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    Deep Reinforcement Learning zur Steigerung von Energieeffizienz und Pünktlichkeit von Straßenbahnen (2023)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: This work investigates how the energy efficiency and punctuality of streetcars can be increased by using AI. The AI is trained on two scenarios at three traffic times each. The determined driving profiles are compared with those of drivers from regular passenger operation as well as with a theoretical optimum determined by Dynamic Programming. In addition, transfer learning capabilities of the AI will be investigated.
    Keywords: Straßenbahn; KI; Energie; effizienz; Pünktlichkeit; Modellierung; Light Rail; AI; Energy Efficiency; Punctuality; Modelling ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 14
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    Entwicklung einer Methode zum Einsatz von Reinforcement Learning für die dynamische Fertigungsdurchlaufsteuerung (2023)
    KIT Scientific Publishing
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    Publication Date: 2024-04-11
    Description: This work aims to develop a method that can reschedule the matrix production in the case of a disruption. For this purpose, different artificial intelligence methods are combined in a novel way. The developed method is validated on a theoretical and a real scheduling case.
    Keywords: Produktionssteuerung; Reinforcement Learning; Künstliche Intelligenz; Terminierung; Production control; artificial intelligence; scheduling ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 15
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    Örtliches Auslegungskonzept gegen Pittingversagen bei randschichtgehärteten Zahnrädern (2023)
    KIT Scientific Publishing
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    Publication Date: 2024-04-11
    Description: The current design of gears against pitting fatigue is based on simple physical models in combination with empirically determined factors. In contrast to that, this work presents a new design concept against pitting fatigue which is based on local quantities and allows a more detailed consideration of different influence parameters on the expected pitting life.
    Keywords: Pitting; Grübchenbildung; Zahnradermüdung; Zahnradberechnung; örtliches Auslegungskonzept; gear fatigue; gear design; local fatigue concept ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 16
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    Der Spröd-duktil-Übergang in ultrafeinkörnigem Wolfram (2023)
    KIT Scientific Publishing
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    Publication Date: 2024-04-11
    Description: High brittle-ductile transition temperatures preclude the use of conventionally manufactured tungsten (W) as a structural material. Ultrafine grained (UFG) W materials, however, exhibit the brittle-ductile transition at very low temperatures and consequently exhibit room-temperature ductility. The correlative microstructure analysis revealed a strong correlation between the transition temperature and the mean grain boundary spacing along the crack front.
    Keywords: kink pair mechanism; Arrhenius activation energy; brittle-ductile transition; ultrafine grained; Kinkenpaarmechanismus; Arrhenius-Aktivierungsenergie; Spröd-duktil-Übergang; ultrafeinkörnig; tungsten; Wolfram ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 17
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    Thermomechanischer Kontakt und stochastische Dynamik gleitender Körper mit rauen Oberflächen (2023)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: Within this work, the friction coefficient is calculated for the dry contact of two sliding metallic bodies as a function of various physical parameters. For this purpose, a thermomechanical model is developed and evaluated for different contact configurations considering the surface roughness of both contact bodies. Subsequent investigations on the consequences of the calculated friction coefficient in the context of friction-induced vibrations are carried out.
    Keywords: Strukurdynamik; Thermoelastizität; Kontaktmechanik; Stochastik; Stabilitätstheorie; Trockene Reibung; Raue Oberflächen; structural dynamics; thermoelasticity; contact mechanics; stochastics; theory of stability; dry friction; rough surfaces ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 18
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    Beitrag zur Entwicklung von Konstantflusspumpen für Frischbeton unter genauerer Betrachtung der Dickstoffventile (2022)
    KIT Scientific Publishing | KIT Scientific Publishing
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    Publication Date: 2024-04-11
    Description: On almost every construction site, mobile fresh-concrete pumps of different designs can be found, all of which have an interruptions in delivery. In this work, a fresh-concrete constant-flow pump is developed and simulated. In order to be able to develop the new type of fresh-concrete valve required for this, knowledge is built up in a first step. This is done with a test bench using statistical design of experiments.
    Keywords: Konstantflusspumpe für Frischbeton ; Frischbetonventil ; statistische Versuchsplanung ; virtual Prototyping ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 19
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    Modellierung von Lithium-Ionen-Batterien zur Lebensdauerprädiktion unter besonderer Berücksichtigung des Anodenüberhangeffekts (2022)
    KIT Scientific Publishing | KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: The focus of this work is on the modelling of the degradation behaviour of conventional lithium-ion cells with graphite/NMC electrodes in conjunction with electrolytes based on LiPF6 in organic solvents. The potential for improvements of parameterization methods dealing with physical-chemical aging effects and simulation studies for optimization of the battery lifetime is shown. In the process of model parameterization mostly data-based as well as non-invasive analysis methods are used.
    Keywords: Lithium-Ionen-Zelle ; Batterie ; Elektrofahrzeug ; Degradationsmechanismen ; Lebensdauerprädiktion ; lithium-ion cell ; battery ; electric vehicle ; degradation mechanism ; lifetime prediction ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 20
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    Modellierung der Mechanik und der effektiven Transporteigenschaften von partikulären Kathoden sowie deren Einfluss auf die elektrochemische Performance von Lithium-Ionen-Batterien (2022)
    KIT Scientific Publishing | KIT Scientific Publishing
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    Publication Date: 2024-04-11
    Description: In the present work, lithium-ion battery cathodes and battery half-cells are numerically investigated. Of main interest is the influence of the calendering of an electrode during its manufacture on the mechanically induced changes in the microstructure and the resulting performance characteristics of a cell. In particular, the influence of varying particle shape and plastic material properties is considered.
    Keywords: Lithium-Ionen-Batterien ; Diskrete Elemente ; Mechanik ; Lithium-Ion-Batteries ; discrete elements ; mechanics ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 21
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    Grundlagenuntersuchungen an intrinsisch gefertigten lasttragenden FVK/Metall-Hybridträgern (2022)
    KIT Scientific Publishing | KIT Scientific Publishing
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    Publication Date: 2024-04-11
    Description: Both types of hybrids are tested and compared in terms of their mechanical properties in quasi-static, dynamic and cyclic three-point bending tests in reference to their damage behaviour. The intrinsic hybrid structures bear approximately a 20% higher maximum force at all load cases investigated and are less prone to mechanical, thermal and corrosive pre-damage.
    Keywords: Hybridwerkstoffe ; Fügen ; Bauteilnahe Beanspruchung ; Hybridmaterials ; Joining ; Near service loads ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 22
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    Kinematische Tätigkeitsanalyse (2022)
    KIT Scientific Publishing
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    Publication Date: 2024-04-11
    Description: The assessment of perceived exertion is highly relevant for workplace design to improve the quality of work. This approach represents an objective method based on kinematic data. The method's objective was to determine the feasibility of using the time derivative of acceleration - jerk - as an indicator of time of increased physical exertion (TIPE). The result showed that the jerk data peaks' height and frequency are useful indicators for identifying physical exertion.
    Keywords: Ruck; körperliche Beanspruchung; Anstrengung; Ergonomie; Arbeitsplatzgestaltung; repetitive Tätigkeiten; Arbeitswissenschaft; Jerk; physical exertion; perceived exertion; ergonomics; workplace design; repetition task; human factors ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 23
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    Diffusionseigenschaften von Nickel in einer Festoxid-Brennstoffzelle (2022)
    KIT Scientific Publishing | KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: In this work, thermal grooving experiments were performed on anode microstructures, Ni polycrystals and Ni bicrystals. The grain boundary grooves were measured by means of an AFM. The results provide for the first time reliable values as well as the complete anisotropy of the relevant material parameters - the relative grain boundary energies and the surface diffusion coefficients - of nickel under realistic operating conditions of an SOFC anode.
    Keywords: solid oxide fuel cell ; grain boundary energy ; Festoxid-Brennstoffzelle ; SOFC ; Nickel ; Diffusion ; Korngrenzenergie ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 24
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    Experimentelle und numerische Analyse des Körperschallübertragungsverhaltens von Aggregatelagerelementen im akustisch relevanten Frequenzbereich (2022)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: The structure-borne sound transmission properties of hydraulic and conventional engine mounts is analyzed experimentally and numerically in a acoustically relevant frequency range. In order to do so, first of all a test bench environment for analyzing the dynamic sound transmission properties is presented. In subsequent steps the main influence parameters on the transmission properties are determined experimentally and numerically.
    Keywords: Akustik; Körperschall; Aggregatelager; Schall; acoustics; Structure borne noise; engine mount; noise ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 25
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    Proceedings - 32. Workshop Computational Intelligence: Berlin, 1. - 2. Dezember 2022 (2022)
    KIT Scientific Publishing | KIT Scientific Publishing
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    Publication Date: 2024-04-11
    Description: This conference volume contains the contributions of the 32nd workshop "Computational Intelligence" of the Technical Committee 5.14 of the VDI/VDE Society for Measurement and Automation Technology (GMA) of 1.12. – 2.12.2022 in Berlin. The focus is on methods, applications and tools for.
    Keywords: Computational Intelligence ; Maschinelles Lernen ; Deep Learning ; Fuzzy Systeme ; Datenanalyse ; Machine Learning ; Fuzzy Systems ; Data Mining ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 26
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    Langzeitstabilität der Innendrücke von Kavernen benachbarter MEMS-Sensoren auf Siliziumbasis (2022)
    KIT Scientific Publishing | KIT Scientific Publishing
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    Publication Date: 2024-04-11
    Description: Due to a trend towards miniaturization of many MEMS devices and thus also the cavity volumes of inertial sensors, the influence of slight changes in the damping atmosphere in sensor cavities on the reliability of the sensors is increasing. In this work, mechanisms affecting the pressure stability of gyroscopes are investigated and countermeasures are presented. A focus is placed on desorption sources as well as gas diffusion paths in the sensor layer stack.
    Keywords: MEMS-Sensor ; Drehratensensor ; Inertialsensor ; Dämpfung ; Q-Faktor ; MEMS sensor ; gyroscope ; inertial sensor ; damping atmosphere ; Q factor ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 27
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    Multiskalige Modellierung von Lithium-Ionen-Batterien (2022)
    KIT Scientific Publishing
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    Publication Date: 2024-04-11
    Description: In this work, model approaches for the internal processes of large-format lithium-ion batteries are developed, experimentally parameterized, and validated. The electrochemical losses in the electrode’s microstructure are investigated as well as their interaction with the heterogeneous potential and temperature distribution of large-format cells. In addition, permissible operating conditions of the cells are identified as well as potentials with regard to increasing power and energy density.
    Keywords: Batterie; Lithium-Ionen-Batterie; Modellierung; Multiskalenmodell; Simulation; Charakterisierung; Multiskalen Modell; battery; lithium-ion battery; modeling; multiscale model; simulation; characterization ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 28
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    Ganzheitliche Optimierung einer Axialkolbenpumpe durch bedarfsangepasste Entlastung tribologischer Kontakte (2022)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: Swash plate axial piston pumps are used in various industrial & mobile applications. An optimization of this displacement principle can be achieved by the active influence of the hydrostatic relief in tribological contacts.The approach addressed in this work is a characteristic field-based pressure control of pressure reservoirs, which can be used to adjust the degree of relief of the individual contact surfaces according to the operating point.
    Keywords: Axialkolbenpumpe; Tribologie; Hydrostaten; Verdängereinheiten; Hydraulik; Axial piston pump; tribology; hydrostat; displacement pump; hydraulic ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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    Herstellung dünner Folien aus Lithium-Lanthan-Titanat zur Anwendung als Festkörperelektrolyt (2022)
    KIT Scientific Publishing | KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: In this work the production of a thin film of lithium lanthanum titanate by tape casting for use in a lithium ion solid state battery is described. The influence of the composition of the slip on its flow properties is investigated. The layers produced are characterized both individually and in connection with a composite anode made of lithium titanate. Their suitability for use in a solid-state battery is demonstrated.
    Keywords: Keramik ; Foliengießen ; Festkörperelektrolyt ; Lithium-Ionen-Batterie ; Lithium-Lanthan-Titanat ; ceramics ; tape casting ; solid electrolyte ; lithium ion battery ; lithium lanthanum titanate ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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    Werkzeug- und Prozessentwicklung des Roll-to-Roll-Hochdurchsatzverfahrens zur kontinuierlichen, großflächigen Mikrostrukturierung (2022)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: This work describes the set-up of a roll-to-roll (R2R) system and the development of a specific microstructuring process for a variety of different materials ranging from high-performance polymers and low-melting-point metals to glass nanocomposites and thermoplastic nonwovens, including a lithography and electroplating-based semi-automated tooling production for seamless R2R microreplication.
    Keywords: Roll-to-Roll; Heißprägen; Mikrostruktur; Lithographie; Galvanik; roll-to-roll; thermal nanoimprint; microstructure; lithography; electroplating ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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    Dynamisches Bremsverhalten des Reifen-Fahrwerk-Systems (2022)
    KIT Scientific Publishing | KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: In the frame of this research work, a complete tyre suspension brake system, which includes a McPherson strut and a modified ABS hydro aggregate is analyzed, developed and optimized on the inner drum test bench and studied using different tyres as well as under various road and braking excitations. By direct control of each interior magnet valve in the ABS hydro aggregate by a real time computer, complex brake slopes as well as various ABS control concepts are implemented on the test bench.
    Keywords: Bremsverhalten ; Reifen ; Fahrwerk ; ABS ; Optimierte Ansteuerung ; Braking behavior ; tyre ; chassis ; Optimized control ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 32
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    Modellierung und Optimierung der strömungstechnischen Vorgänge in Abweiseradsichtern (2022)
    KIT Scientific Publishing | KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: Centrifugal classifiers are processing machines used in the gas-particle classification. The aim of this work is to reduce energy costs by improving the classification properties and reducing the pressure drop. In addition to design measures, the focus is also on model development. For the development of the models, a deeper understanding of the flow processes is required.
    Keywords: Gas-Partikel-Klassierung ; Abweiseradsichter ; Mathematische Modellierung ; Numerische Simulation ; Optimierung ; Gas particle separation ; Centrifugal Classifier ; Mathematical Modeling ; Numerical Simulation ; Optimization ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 33
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    Nanoskalige Analytik der Mikrostruktur von hochdosig bestrahltem Beryllium (2022)
    KIT Scientific Publishing | KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: The aim of the present work is to develop an in-depth understanding of the microstructural changes in neutron-irradiated beryllium. In particular, it aims to reveal the precise mechanisms leading to the observed tritium retention.Both, helium and tritium could be detected for the first time by high-resolution electron energy loss spectroscopy (EELS) within bubbles in the grain interior as well as along grain boundaries.
    Keywords: Beryllium ; Wasserstoff ; Mikrostruktur ; EELS ; Bestrahlung ; beryllium ; hydrogen ; microstructure ; irradiation ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 34
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    Modellfreies Lernen optimaler zeitdiskreter Regelungsstrategien für Fertigungsprozesse mit endlichem Zeithorizont (2022)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: The quality and performance of components is largely determined by the execution of the manufacturing processes involved. The process result depends -- in addition to the initial state of the component and the process -- on the course of the process. In many manufacturing processes, the course of the process can be decisively determined by manipulated variables that change over time. This work deals with methods to optimize these time-varying quantities under fluctuating process conditions. The quality of components depend to a large extent on the execution of the industrial processes involved in manufacturing. In addition to the initial conditions of the component and the process, the process result depends on the course of the process, which often can be significantly determined by time-varying manipulated variables. Methods for the optimization of these time-dependent quantities with regard to the component quality and depending on process conditions is the subject of this work.
    Keywords: Maschinelles Lernen; Entscheidungsoptimierung; Bestärkendes Lernen; Prozesspfadoptimierung; Optimale Regelung; machine learning; reinforcement learning; decision optimization; process optimization; optimal control ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 35
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    Mechanische und Strömungsmechanische Topologieoptimierung mit der Phasenfeldmethode (2022)
    KIT Scientific Publishing | KIT Scientific Publishing
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    Publication Date: 2024-04-11
    Description: In engineering work, the optimization of the microstructure of a material, of mechanically loaded components and of components influencing the flow behaviour is important. Understanding the behavior of flows in geological structures can be used to optimize the design of geothermal power plants. In this thesis, methods from continuum mechanics, fluid mechanics and the phase field method are presented for the optimization of such processes and examples of optimizations are shown.
    Keywords: Kontinuumsmechanik ; Strömungsmechanik ; Phasenfeldmethode ; Topologieoptimierung ; continuum mechanics ; fluid mechanics ; phase field method ; topology optimization ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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    Ein Beitrag zur asymptotischen Analyse der hydraulischen Ventilsteuerungen (2022)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: A method based on the singular perturbation theory and the averaging method is developed for the dynamic analysis of hydraulic valves. Periodic solutions are calculated and stability is analyzed under the influence of non-smooth phenomena. Based on this analysis, reduced models are developed, which exhibit significantly improved computational time efficiency, both in the simulation of non-stationary motions as well as in nonlinear valve control.
    Keywords: hydraulisches Druckregelventil; singulär gestörtes System; nichtlineare Dynamik; nicht-glatte Dynamik; Regelung; hydraulic pressure control valve; singularly perturbed system; nonlinear dynamics; non-smooth dynamics; control ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 37
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    Kleinskalige Charakterisierung der Fest-Flüssig-Trennung und Betrachtung des Scherbruchs von Proteinkristallen (2022)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: Proteins are macromolecules composed of amino acids that are essential for a large number of biological metabolic processes. Proteins are also used in technical applications, for example to catalyze reactions. The objective of this work is to provide an indication of filterability early in the process development. A filtration cell for a centrifuge developed in this work makes it possible to characterize filtration on a small scale.
    Keywords: Proteinkristall; Fest-Flüssig-Trennung; Kleinstmaßstab; Bruch; Protein Crystal; Solid-Liquid Separation; Small Scale; Fracture ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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    Proceedings - 30. Workshop Computational Intelligence : Berlin, 26. - 27. November 2020 (2022)
    KIT Scientific Publishing | KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: The proceedings of the 30th workshop on computational intelligence focus on methods, applications, and tools for fuzzy systems, artificial neural networks, deep learning, system identification, and data mining techniques.
    Keywords: Computational Intelligence ; Data Mining ; Deep Learning ; Machinelles Lernen ; Evolutionäre Algorithmen ; Machine Learning ; Evolutionary Algorithms ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 39
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    Werkzeuge und Konzepte für die Untersuchung und Entwicklung zukünftiger Kfz-Bremssysteme (2022)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: The electrification of the power train as well as the automatisation of driving have a strong influence on chassis for future vehicles. Due to the possibility for recuperation using the electric motor a strong shift in the so far used load spectrum can be seen. Furthermore, this increases the high amount of requirements for brake systems. For understanding the interactions and for developing corresponding optimal systems for future vehicles, proper tools and concepts are necessary.
    Keywords: Bremssysteme; hydraulisch; by-Wire; Werkzeuge; Elektromobilität; brake systems; hydraulic; by-wire; tools; electrification ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 40
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    Phasenfeldmodellierung von Bruchbildungs-, Kristallisations- und Auflösungsvorgängen in hydrothermalen Umgebungen (2022)
    KIT Scientific Publishing
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    Publication Date: 2024-04-11
    Description: This work focuses on the numerical investigation of fracture formation, crystallization, and crystal dissolution processes in subsurface hydrothermal environments on microscale. Phase-field models are presented and applied to these processes. The formation of mineral veins in limestones and in quartz-rich microstructures are modeled to investigate different factors which influence the evolving crystal structure. Moreover, crystal dissolution processes of different minerals are modeled.
    Keywords: Phasenfeldsimulation; Rissausbreitung; Kristallisation; Kristallauflösung; Mikrostrukturanalyse; phase-field simulation; fracture formation; crystallization; crystal dissolution; microstructure analysis ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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    Steuerung und Regelung des Lenkradmoments durch Nutzung radselektiver Frontantriebe (2022)
    KIT Scientific Publishing | KIT Scientific Publishing
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    Publication Date: 2024-04-11
    Description: The use of wheel-individual drives on the steered axle simultaneously enables propulsion and implementation of steering assistance. This work presents a closed-loop and open-loop method for controlling wheel-selective drives with the aim of reducing the steering wheel torque. The proposed optimal linear-quadratic-integral controller achieves a high control quality while ensuring driving safety and reducing energy consumption.
    Keywords: wheel individual ; steering assistance ; steering torque ; closed-loop control ; Open-loop control ; radselektiv ; Lenkkraftunterstützung ; Lenkradmoment ; Regelung ; Steuerung ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 42
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    Experimentelle Untersuchungen und Bemessungsansätze für faserverstärktes Mauerwerk unter Erdbebenbeanspruchungen (2021)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: Several experimental campaigns are conducted to find feasible fiber reinforcements for buildings under earthquake conditions. Therefore tensile tests for the description of the bonding behavior of the fibers, shear tests on three-stone small specimen, small static cyclic shear wall tests, bending tests of wall segments, large format dynamically loaded wall plates and five building experiments were performed under realistic time history acceleration. At the end a calculation method is proposed.
    Keywords: TA1-2040 ; masonry ; Erdbeben ; Verstärkungen ; fiber reinforced concrete ; Bemessung ; Faserverbundwerkstoffe ; earthquake ; Mauerwerk ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues::TBX History of engineering and technology
    Language: German
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    Untersuchung der Makro- und Mikromischung in kontinuierlich durchströmten Taylor-Vortex Reaktoren mit modifizierter Rotorgeometrie (2021)
    KIT Scientific Publishing
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    Publication Date: 2024-04-11
    Description: In der vorliegenden Arbeit wurde der Einfluss der Zylindergeometrie (zylindrisch; rippenförmig) auf die Mischcharakteristik eines kontinuierlich durchströmten Taylor-Vortex Reaktors untersucht. Hierfür wurde die Makro- und Mikromischung mittels Spurstoffversuchen, Messung des Rührenergieeintrages und einer chemischen Testreaktion bestimmt.
    Keywords: TP155-156 ; Spurstoffversuche ; Mikromischung ; alkalische Verseifung Ethylacetat ; Taylor-Vortex Reaktor ; Makromischung ; spezifischer Rührenergieeintrag ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TC Biochemical engineering::TCB Biotechnology
    Language: German
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    Internetbasiertes Fachinformationssystem zur Plattenkinematik (2021)
    KIT Scientific Publishing
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    Publication Date: 2024-04-04
    Description: In der vorliegenden Arbeit wird ein internetbasiertes Fachinformationssystem zur Detektion krustaler Deformationen in den Ostkarpaten vorgestellt, welches im Rahmen des Sonderforschungsbereichs 461 Starkbeben: von wissenschaftlichen Grundlagen zu Ingenieurmaßnahmen entwickelt wurde.Im Vordergrund stehen die Konzeption und Implementierung eines Fachinformationssystems für regionale beziehungsweise globale GPS-Projekte, die zur Aufdeckung von Plattengrenzen und Analyse von Plattenbewegungen eingerichtet wird.
    Keywords: QC1-999 ; Grundlagenforschung ; JavaBeans ; Erdbeben ; Katastrophenschutz ; JBoss 3.0 ; Enterprise ; Informationssystem ; Datenbank ; XML 1.1 ; Middleware ; Ostkarpaten ; bic Book Industry Communication::P Mathematics & science::PH Physics ; thema EDItEUR::P Mathematics and Science::PH Physics
    Language: German
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    Abschlussbericht für die Jahre 1996 - 2007 mit Berichtsband für die Jahre 2005 - 2007 [mit CD] (2021)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-04
    Description: Sonderforschungsbereich 461 ""Starkbeben : Von geowissenschaftlichen Grundlagen zu Ingenieurmaßnahmen"" von Juli 1996 bis Dezember 2007 an der Universität Karlsruhe. Forschungsfeld des SFB 461 waren Starkbeben mit einem regionalen Fokus auf den Vrancea-Ereignissen in Rumänien, wo sie immer wieder starke Schäden verursachten. Diese Risiken und die Gewissheit, dass Rumänien und seine Städte wieder von einem Starkbeben betroffen werden, bildeten die Motivation der Arbeit, erkennend, dass Schadensminderung mit moderner Wissenschaft und Technik sowie mit konsequenter Implementierung des Wissens möglich und aussichtsreich ist.
    Keywords: QC1-999 ; Erdbeben ; Hochbau ; Katastrophe ; Rettungsmaßnahmen ; bic Book Industry Communication::P Mathematics & science::PH Physics ; thema EDItEUR::P Mathematics and Science::PH Physics
    Language: German
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    Assistenzsysteme zur Reduktion des Schädigungsverhaltens von Komponenten einer mobilen Arbeitsmaschine (2021)
    KIT Scientific Publishing | KIT Scientific Publishing
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    Publication Date: 2024-04-11
    Description: In this work, modular damage reduction assistance systems are investigated. Identification modules provide information about the current driving and working state, the machine operator, the bulk material mass and system parameters. Damage modules with complexity reduced calculation approaches allow a quantification of the machine damage. Possible applications and the potential of the assistance systems are demonstrated in a model-based development environment.
    Keywords: Assistenzsysteme ; Schädigungsreduktion ; Machine Learning ; Modellbasierte Entwicklung ; Radlader ; assistance systems ; damage reduction ; machine learning ; model-based development ; wheel loader ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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    Ferromagnetische Inhomogenitäten zur berührungslosen Bestimmung der Geschwindigkeit und gleisselektiven Position von Schienenfahrzeugen (2021)
    KIT Scientific Publishing
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    Publication Date: 2024-04-11
    Description: Ferromagnetic inhomogeneities along the track serve as landmarks. With these, each track section in the track network can be uniquely identified. In addition to non-contact speed determination, this also provides a track-selective method for determining the absolute position of the rail vehicle.
    Keywords: bordautonome Lokalisierung ; berührungslose Geschwindigkeitsmessung ; ferromagnetische Inhomogenitäten ; ferromagnetische Signaturen ; Schienenfahrzeug ; high accuracy velocity and position estimation ; ferromagnetic inhomogeneities ; ferromagnetic signatures ; rail vehicle ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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    Vermischung in Taylor-Couette Strömung (2021)
    KIT Scientific Publishing
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    Publication Date: 2024-04-11
    Description: Der Taylor-Couette Reaktor zeichnet sich aus durch gleichmäßige Mischintensitäten und schonende Mischbedingungen. Die Vermischung in der Taylor-Couette Strömung wurde experimentell untersucht. Die Größenskalen der Vermischung wurden hinsichtlich der Reaktorgeometrie spezifiziert. Basierend auf experimentellen Ergebnissen wurde die Vermischung in der Taylor-Couette Strömung modelliert sowie die Zusammenhänge zwischen Prozessparametern und Mischungszuständen geklärt.
    Keywords: TP155-156 ; Makrovermischung ; Taylor-Couette Reaktor ; Mikrovermischung ; Mesovermischung ; Taylor-Couette Strömung ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TC Biochemical engineering::TCB Biotechnology
    Language: German
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    Thermische Charakterisierung von keramischen Schwammstrukturen für verfahrenstechnische Apparate (2021)
    KIT Scientific Publishing
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    Publication Date: 2024-04-11
    Description: In dieser Arbeit wurden Schwämme aus Al2O3, Mullit und oxidisch gebundenem SiC hinsichtlich ihrer Impuls- und Wärmetransporteigenschaften experimentell untersucht. Zur Auslegung chemischer Apparate nach dem heterogenen oder dem homogenen Modell wurden für folgende wärmetechnisch interessanten Parameter allgemeingültige, dimensionslose Korrelationen abgeleitet: Druckverlust, Wärmeübergangskoeffizient zwischen Fluid und Feststoffgerüst, Ruhe- sowie axiale und radiale Zweiphasen-Wärmeleitfähigkeit.
    Keywords: TP155-156 ; Wärmeübergangskoeffizient ; Druckverlust ; Keramischer Schwamm ; Offenzelliger Schaum ; Wärmeleitfähigkeit ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TC Biochemical engineering::TCB Biotechnology
    Language: German
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    Dynamische Simulation der Mechanischen Flüssigkeitsabtrennung in Vollmantelzentrifugen (2021)
    KIT Scientific Publishing
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    Publication Date: 2024-04-11
    Description: The aim of the present work is the mathematical modeling of solid bowl centrifuges for the dynamic simulation of separation processes in real time. The developed compartment model couples the residence time behavior with the material properties and thus allows a time and space-resolved simulation for solid bowl centrifuges. The profound insights into the separation process open up not only a better design, but also new fields of application such as the dynamic flowchart simulation.
    Keywords: TP155-156 ; Systemverhalten ; Solid Bowl Centrifuges ; System Behaviour ; Vollmantelzentrifugen ; Mathematische Modellierung ; Dynamische Simulation ; Solid-Liquid Separation ; Mathematical modelling ; Mechanische Flüssigkeitsabtrennung ; Dynamic Simulation ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TC Biochemical engineering::TCB Biotechnology
    Language: German
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    Bestimmung der thermischen Transporteigenschaften poröser Elektroden von Lithium-Ionen Batterien (2021)
    KIT Scientific Publishing | KIT Scientific Publishing
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    Publication Date: 2024-04-11
    Description: This contribution presents an analytical and a numerical model for predicting the effective thermal conductivity of porous electrode coatings as a function of microstructure parameters. Both models account for the morphological parameters and the thermal bulk materials of the constitutive cell components. The results of both models have been successfully verified against each other and validated with literature data as well as own experimental measurements.
    Keywords: thermal conductivity ; thermal transport properties ; porous electrodes ; lithium-ion cell ; lithium-ion battery ; Wärmeleitfähigkeit ; thermische Transporteigenschaften ; poröse Elektroden ; Lithium-Ionen Zelle ; Lithium-Ionen Batterie ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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    In-situ Visualisierung von Oberflächendeformationen aufgrund von Marangoni-Konvektion während der Filmtrocknung (2021)
    KIT Scientific Publishing
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    Publication Date: 2024-04-11
    Description: In the production of modern components, e.g. displays, complex substrates with e.g. conducting paths and pre-structuring are liquid coated and dried. The surfaces of such layers have to have a very well specified quality, usual. Thus it is necessary to avoid the formation of surface structures. This work presents the elementary mechanism and describes a technique for visualization to investigate surface deformations due to Marangoni-Convection during thin film drying.
    Keywords: TP155-156 ; convection ; Filmtrocknung ; Konvektion ; Marangoni ; Oberflächendeformationthin film drying ; surface deformation ; Oberflächenspannung ; surface tension ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TC Biochemical engineering::TCB Biotechnology
    Language: German
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  • 53
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    Oxidation von Isobutan und Isobuten zu Methacrolein an einem neuen Mo-basierten Mischoxid-Katalysator (2021)
    KIT Scientific Publishing
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    Publication Date: 2024-04-11
    Description: In the present work kinetic experiments addressing the oxidation of isobutene and isobutene to methacrolein over a new Mo-based mixed oxide catalyst are presented. The experiments focus on the one hand on the synthesis of the mixed oxide catalyst as well as the characterization of the crystal structure and on the other hand on the identification of suitable reaction conditions for the oxidation of the hydrocarbons.
    Keywords: TP155-156 ; Isobutene ; Isobutan ; Mischoxid-Katalysator ; Methacrolein ; Mixed Oxide Catalyst ; Isobutane ; Isobuten ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TC Biochemical engineering::TCB Biotechnology
    Language: German
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  • 54
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    Vom Keim zum Kristall - Über die Partikelbildung bei der Fällung schwerlöslicher Feststoffe (2021)
    KIT Scientific Publishing
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    Publication Date: 2024-04-11
    Description: Die Feststofferzeugung mit Hilfe von Fällungsprozessen kommt in der chemischen Industrie schon seit Jahrhunderten zum Einsatz. Die grundlegenden Vorgänge während einer Fällung sind aber bis heute noch wenig verstanden. Zur gezielten Einstellung diverser Produktparameter ist für den Anwender die Kenntnis der ablaufenden physikalisch-chemischen Vorgänge bei der Partikelbildung unabdingbar. Das Ziel dieser Arbeit ist es, Hinweise zu geben, wie Partikelbildungsprozesse beeinflusst werden können.
    Keywords: TP155-156 ; Aggregation ; Fällung ; Produktgestaltung ; Keimbildung ; Kristallisation ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TC Biochemical engineering::TCB Biotechnology
    Language: German
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    Messung und Berechnung des Resonanzverhaltens gekoppelter Helmholtz-Resonatoren in technischen Verbrennungssystemen (2021)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: Für eine quantitative Vorhersage des Stabilitätsverhaltens eines technischen Verbrennungssystems in Hinblick auf das Auftreten selbsterregter Druck-/Flammenschwingungen, ist es u. a von entscheidender Bedeutung das Übertragungsverhalten der Brennkammer einschließlich vor- und nachgeschalteter Bauteile zu kennen (Helmholtz-Resonatoren). In dieser Arbeit wurde ein Modell zur Vorhersage des Resonanzverhaltens realer, gedämpfter Verbrennungssysteme auf gekoppelte Systeme erweitert.
    Keywords: TP155-156 ; Brennkammer ; Gasturbine ; Verbrennungsinstabilität ; Helmholtz-Resonator ; Thermoakustik ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TC Biochemical engineering::TCB Biotechnology
    Language: German
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  • 56
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    Produktion und Charakterisierung biogener anorganischer, nanoskaliger und nanostrukturierter Partikel (2021)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: Die industrielle Herstellung anorganischer nanoskaliger und nanostrukturierter Partikel erfolgt vorwiegend durch den Einsatz physikalischer und chemischer Verfahren. Im Rahmen dieser Arbeit wird gezeigt, dass durch Verwendung sog. Biomineralisationsprozesse eine relativ große Anzahl qualitativ hochwertiger Partikel zu wirtschaftlich interessanten Konditionen herstellbar ist. Im Vgl. zu Partikeln aus physikalischchemischen Verfahren besitzen biogene Partikel weitere interessante Eigenschaften.
    Keywords: TP155-156 ; Biomineralisation ; Halbleiter ; Nanotechnologie ; Bioverfahrenstechnik ; Partikel ; Biomimetik ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TC Biochemical engineering::TCB Biotechnology
    Language: German
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  • 57
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    Einfluss der Kompaktierung auf die Elektrodenmikrostruktur und elektrochemische Performance bei Lithium-Ionen-Zellen (2021)
    KIT Scientific Publishing | KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: In this work, the influence of compaction of LiNi1/3Co1/3Mn1/3O2 and graphite-based electrodes is characterized electrochemically at current rates between C/20 and 5C in a wide porosity range from uncompacted states to porosities 〈 20%. From the determined capacitances, gravimetric and volumetric considerations, among others, are presented in Ragone plots and correlated with the microstructural analysis findings.
    Keywords: Lithium-Ionen-Zellen ; Elektrodenfertigung ; Elektroden-Mikrostruktur ; elektrochemische Eigenschaften ; Lithium ion batteries ; electrode manufacturing ; electrode microstructure ; electrochemical properties ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 58
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    Analytische und numerische Untersuchungen der Dynamik von Vormischflammen sowie deren Interaktion mit Ringwirbelstrukturen (2021)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: Die Verwendung des Konzeptes der Vormischverbrennung in technischen Verbrennungsanlagen fördert die Ausbildung von selbsterregten Instabilitäten.Der Schwerpunkt der Arbeit liegt in der Berechnung des dynamischen Verhaltens bzw. des Frequenzgangs von pulsierten turbulenten vorgemischten Axialstrahlflammen. Dieses steht unter dem Einfluss der Bildung von kohärenten Ringwirbelstrukturen an der Brennermündung. Es werden sowohl instationäre Flammen als auch Ringwirbelströmungen numerisch untersucht.
    Keywords: TP155-156 ; Ringwirbel ; Modellierung ; Turbulente Strömung ; Vormischflamme ; Selbsterregte Schwingung ; Reagierende Strömung ; Pulsation ; Turbulente Verbrennung ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TC Biochemical engineering::TCB Biotechnology
    Language: German
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  • 59
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    Einfluss des Dralls auf den Überschallnachlauf eines längsangeströmten zylindrischen Körpers (2021)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: This study investigates the effects of swirl on the supersonic wake of longitudinally-aligned axisymmetric afterbodies. The swirl was introduced upstream of the base corner by either spinning non-canted or non-spinning canted fins. Depending on the introduced swirl rate, both the experimental and numerical results show two distinctively different wake flow structures. The fluid-dynamic processes present in the rotating wakes and the resulting structural changes are analyzed in detail.
    Keywords: Überschallnachlauf ; Drall ; Wirbelaufplatzen ; Windkanalmessungen ; Numerische Simulationen ; supersonic wake flow ; swirl ; vortex breakdown ; wind-tunnel measurements ; numerical simulations ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 60
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    Hybride und energieeffiziente Antriebe für mobile Arbeitsmaschinen (2021)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: This book contains the collected conference proceedings to the lectures of the 8th symposium on 23rd February 2021 in Karlsruhe. The state of research and new developments in the field of drive technology for mobile machines are reported in 11 articles. The conference proceedings are characterised by technical contributions on intelligent machine control systems, innovative electrical drives and development methods for off-highway vehicles.
    Keywords: Hybrid ; Antrieb ; Mobile Arbeitsmaschine ; Elektrifizierung ; Industrie 4.0 ; Drive Technology ; Mobile Machine ; Electrification ; Industry 4.0 ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 61
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    Kontaktverbindungen für aussteifende Scheiben aus Brettsperrholz (2021)
    KIT Scientific Publishing
    Details
    Publication Date: 2023-12-21
    Description: Cross-laminated timber (CLT) is already being used successfully in residential, commercial and industrial buildings for different reasons. High in-plane shear strength and stiffness of the CLT itself make CLT members especially suited for bracing elements with in-plane loads. To better use the potential of CLT under static in-plane loading, so called contact joints were developed with increased stiffness and load-carrying capacities using CNC automatic processing machines.
    Keywords: T1-995 ; Erdbeben ; Kontaktverbindung ; diaphragms ; Brettsperrholz ; cross-laminated-timber ; Aussteifung ; contact-joint ; earthquake ; Scheiben ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues
    Language: German
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  • 62
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    Partielle Oxidation von o-Xylol zu Phthalsäureanhydrid : Keramische Schwämme als alternative Trägerstrukturen (2021)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: Gegenstand der vorliegenden Arbeit war die Abschätzung des Potentials keramischer Schwämme als Katalysatorträger. Die dafür notwendigen Untersuchungen wurden mittels der partiellen Oxidation von o-Xylol zu Phthalsäureanhydrid durchgeführt. Im Rahmen der Arbeit wurden zum einen Festbettreaktoren mit Kugeln und Schwammpackungen rein theoretisch auf Grundlage einer Modellrechnung verglichen und zum anderen wurden eine Reihe experimenteller Untersuchungen in einer Laboranlage durchgeführt.
    Keywords: TP155-156 ; Modellierung ; Flammensprühpyrolyse ; Schwämme ; Phthalsäureanhydrid ; Vanadiumpentoxid ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TC Biochemical engineering::TCB Biotechnology
    Language: German
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  • 63
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    Zum Stofftransport schwer flüchtiger Additive in Polymerbeschichtungen - Untersuchungen mit Hilfe der konvokalen Mikro-Raman-Spektroskopie (2021)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: Schwerpunkt dieses Buchs ist es, den Einfluss von schwer flüchtigen Additiven auf die Mobilität von Lösemitteln zu quantifizieren sowie die Mobilität der Additive in Polymersystemen zu bestimmen. Ausgangspunkt hierfür war die Hypothese, dass sich Fick'sche Diffusionskoeffizienten einzelner Spezies in Polymersystemen durch Anpassung von Simulationsrechnungen an gemessene Beladungsprofile zu verschiedenen Zeitpunkten eines Konzentrationsausgleichsprozesses bestimmen lassen.
    Keywords: TP155-156 ; IMRS ; schwerflüchtige Additive ; Diffusion ; Trocknung ; Polymerbeschichtungen ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TC Biochemical engineering::TCB Biotechnology
    Language: German
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  • 64
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    Reaktionskinetische Untersuchungen zur Umwandlung stickstoffhaltiger Gaskomponenten unter Bedingungen der Abfallverbrennung (2021)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: Die vorliegende Arbeit stellt einen detaillierten Reaktionsmechanismus zur Verfügung, der die Stickstoffoxidbildung aus brennstoffgebundenem Stickstoff in der Gasphase unter Bedingungen der Abfallverbrennung beschreiben kann. Der Mechanismus wurde mit Hilfe eigener Messungen an einem Kolbenströmungsreaktor sowie Daten aus der Literatur erarbeitet. Mit einem solchen detaillierten Modell können gezielt Einflussparameter auf die NOx-Bildung untersucht werden.
    Keywords: TP155-156 ; Reaktionskinetik ; Stickstoffoxid ; Abfallverbrennung ; Reaktionsmechanismus ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TC Biochemical engineering::TCB Biotechnology
    Language: German
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  • 65
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    Entwicklung einer Kontinuumsbeschreibung für die Versetzungsmobilität in Versetzungsnetzwerken (2021)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: This work deals with the homogenization of dislocation reactions across slip systems in a physically based three-dimensional formulation of metal plasticity. Based on comparisons with discrete dislocation dynamics simulations, a description of dislocation networks is developed. Thereby, strain hardening is achieved as a consequence of the evolution of dislocation networks, which in turn results from an interaction of plastic slip and physical mechanisms.
    Keywords: Werkstoffsimulation ; plastische Verformung von Metallen ; physikalisch-basierte Kontinuumsbeschreibung ; Versetzungsnetzwerke ; Versetzungsdynamik ; material simulation ; plastic deformation of metals ; physically-based continuum formulation ; dislocation networks ; dislocation dynamic ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 66
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    Aussteifende Wandscheiben in Einzelelement-Bauweise (2021)
    KIT Scientific Publishing
    Details
    Publication Date: 2023-12-21
    Description: Im Rahmen der Arbeit wurde eine Elementbauweise hinsichtlich ihrer Eigenschaften unter horizontalen Lasten untersucht. Bei der Bauweise werden die Vorteile von handlichem Format der einzelnen Elemente sowie dem geringen Gewicht des Werkstoffs Holz vereint.Um die Eigenschaften der Bauweise erforschen zu können, wurde an der Universität Karlsruhe eine Apparatur zur Prüfung von Wandscheiben entwickelt, mit der Wände unter vertikalen sowie horizontalen Lasten untersucht werden können.
    Keywords: T1-995 ; Erdbeben ; Holzbau ; Wandscheiben ; Aussteifung ; Energiedissipation ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues
    Language: German
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  • 67
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    Grundlegende Untersuchungen zur biotechnologischen Kultivierung von Schwämmen : Massenbilanzierung bei Aplysina aerophoba (2021)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: Grundlegende Untersuchungen zur biotechnologischen Kultivierung von Schwämmen am Modellorganismus A. aerophoba mit dem Ziel Aussagen über die quantitativen Anforderungen von Schwämmen unter ex situ Bedingungen zu beurteilen. Durch Bestimmung der quantitativen Randbedingungen sollten Vorschläge zur Auslegung einer Anlage zur Produktion von Schwammbiomasse unter artifiziellen Bedingungen abgeleitet werden. Marine Schwämme sind als Quelle zahlreicher neuer Naturstoffe in den Fokus gerückt.
    Keywords: TP155-156 ; Filtrationsraten ; Naturstoffe ; Aplysina aerophoba ; marine Schwämme ; Respirationsraten ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TC Biochemical engineering::TCB Biotechnology
    Language: German
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  • 68
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    Objektivierung des Schwingungskomforts schwerer Nutzfahrzeuge (2021)
    KIT Scientific Publishing | KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: A time efficient development process of new trucks includes an early development of ride comfort before real prototypes exist. Therefore it is necessary to determine objective and measurable characteristic values to predict the subjectively percepted ride comfort from measurement or simulation results. The aim of this work is the determination of objective characteristic values for three selected vibration phenomena and the prediction of their subjective evaluations.
    Keywords: Schwingungskomfort ; Objektivierung ; LKW ; Maskierungseffekte ; Schwingungswahrnehmung ; ride comfort ; objectification ; heavy duty truck ; masking effects ; human vibration perception ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 69
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    Über das Konkurrenzverhalten von Dielektrika bei der Mikrowellenerwärmung (2021)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: Die Leistungsaufnahme einer Last in einem Mikrowellenprozess hängt entscheidend davon ab, ob andere Produkte oder auch die Anlage einen Teil der angebotenen Leistung abziehen. Ein solcher Zustand, in dem Produkte und die Anlage um die angebotene Mikrowellenleistung konkurrieren, wird in neuer Definition als Erwärmung unter Konkurrenz bezeichnet. In dieser Arbeit werden die Implikationen solcher Konkurrenzsituationen diskutiert und ein quantitative Lösung zu ihrer Beschreibung angeboten.
    Keywords: TP155-156 ; Effizienz ; Lebensmittel ; Mikrowellen ; Kakao ; Leistungsaufnahme ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TC Biochemical engineering::TCB Biotechnology
    Language: German
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  • 70
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    Wärmeübergang beim pulsierenden Prallstrahl (2021)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: Bei der rotationssymmetrischen Prallströmung strömt ein Fluid (hier: Luft) aus einer Düse mit kreisförmiger
    Keywords: TP155-156 ; Laser-Doppler-Anemometrie ; Strömungsfeld ; Thermographie ; Wärmeübergang ; Prallströhmung ; Numerische Strömungssimulation ; Pulsation ; Korrelation ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TC Biochemical engineering::TCB Biotechnology
    Language: German
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  • 71
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    Die partielle Oxidation von Propan zu Acrylsäure. Bestimmung der Reaktionskinetik und in-situ Charakterisierung des Katalysators unter Betriebsbedingungen (2021)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: Gegenstand der vorliegenden Arbeit ist die partielle einstufige Oxidation von Propan zu Acrylsäure an einem oxidischen Multikomponentenkatalysator mit der Zusammensetzung Mo1V0,33Nb0,17Te0,25Ox. In der vorliegenden Arbeit stehen zwei Gesichtspunkte im Mittelpunkt: grundlegende Untersuchungen zur Reaktionskinetik und die in-situ Charakterisierung des Katalysators unter Betriebsbedingungen mittels Festkörperelektrolypotentiometrie.Die Reaktion sollte mit Hilfe eines möglichst einfachen Reaktionsnetzes und einfacher kinetischer Ansätze qualitativ und quantitativ beschrieben werden. Dabei war neben dem Einfluss der Temperatur, der Einfluss der Eingangsmolenbrüche von Propan, Sauerstoff und Wasser zu untersuchen und zu quantifizieren.Parallel wurde der Einfluss der Gasphasenzusammensetzung auf die Sauerstoffaktivität unter Betriebsbedingungen untersucht. Dabei wurde erwartet mit Hilfe der simultanen potentiometrischen und kinetischen Messungen Rückschlüsse auf die Wirkungsweise des Katalysators ziehen zu können.
    Keywords: TP155-156 ; Reaktionskinetik ; Chemische Reaktion / Katalyse ; Acrylsäure ; Katalytische Oxidation ; Propan ; Selektive Oxidation ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TC Biochemical engineering::TCB Biotechnology
    Language: German
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  • 72
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    Biotechnologische Methoden zur Kultivierung von Schwämmen : grundlegende Untersuchungen zur ex-situ Kultivierung mariner Porifera (2021)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: Ziele der vorliegenden Arbeit waren die Entwicklung neuer und die Optimierung bereits angewendeter Methoden für eine dauerhafte ex-situ Kultivierung von Schwämmen als Lieferanten von pharmakologisch interessanten Naturstoffen. Verschiedene Kultivierungsparameter wurden hinsichtlich ihrer Auswirkungen auf die Vitalität und das Wachstum der Schwämme analysiert und vier Kultivierungsansätze getestet: Schwammfragmente, multizelluläre Reaggregate, Gemmulae & die Immobilisierung von Schwammzellen.
    Keywords: TP155-156 ; Aquakultur ; ex-situ Kultivierung ; mediterrane Schwämme ; Fragmentierung ; Immobilisierung ; Porifera ; Aplysina ; Gemmulae ; Suberites ; Schwammkultivierung ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TC Biochemical engineering::TCB Biotechnology
    Language: German
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  • 73
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    Experimentelle Analyse der Stabilisierungseigenschaften von abgehobenen eingeschlossenen nicht-vorgemischten Drallflammen (2021)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: Subject of this work was the experimental investigation of an confined, lifted, non-premixed swirl flame by employing a novel airblast nozzle. For the time-resolved determination of all three velocity components, a measurement campaign was carried out using a commercial 3-D LDA system. Concentration and temperature measurements in the reacting field were also performed to better understand the complex turbulent and chemical interactions.
    Keywords: TP155-156 ; Abgehobene nicht-vorgemischte Drallflamme ; 3D-LDA ; drallinduzierte selbsterregte Instabilität. ; Airblast-Düse ; experimentelle Untersuchung ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TC Biochemical engineering::TCB Biotechnology
    Language: German
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  • 74
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    Prozesstechnische Optimierung des Molecular Farming glykosylierter Proteine in Photo-Bioreaktoren mit dem Moos Physcomitrella patens (2021)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: Moose sind in den letzten Jahren als interessante Expressionsplattform für rekombinante Proteine entdeckt worden. In dieser Arbeit wird ein Ansatz zur Produktion komplexer Glycoproteine mit dem Moos Physcomitrella patens in Photo-Bioreaktoren entwickelt und überprüft. Langfristige kontinuierliche Kultivierungen mit Perfusion sowie mit Steuerung der Moosmorphologie zeichnen sich als ein einfach skalierbares, vielversprechendes neues Verfahren für Molecular Farming ab.
    Keywords: TP155-156 ; Moos ; Photo-Bioreaktor ; Physcomitrella patens ; Molecular Farming ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TC Biochemical engineering::TCB Biotechnology
    Language: German
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  • 75
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    Extrusion von technischen ZSM-5-Kontakten und ihre Anwendung im MTO-Prozess (2021)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: In dieser Arbeit wurden technische Zeolithkatalysatoren (ZSM-5 + Binder) mittels Extrusion hergestellt und im Festbett-MTO-Prozess (Methanol-to-Olefins) getestet. Das Ziel war die Optimierung der Reaktionsbedingungen und des Katalysators, um möglichst hohe Selektivitäten zu Ethen und Propen sowie verbesserte Katalysatorstandzeiten zu erreichen.
    Keywords: TP155-156 ; Olefine ; Aluminiumphosphat ; ZSM-5 ; MTO ; Methanol ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TC Biochemical engineering::TCB Biotechnology
    Language: German
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  • 76
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    Schadensanalyse von Bauwerken in Indonesien nach einem Erdbeben (2021)
    KIT Scientific Publishing
    Details
    Publication Date: 2023-12-21
    Description: Im Mai 2006 wurde die Provinz Yogyakarta (Java, Indonesien) von einem Erdbeben erschüttert. Im Rahmen des Projektes wurden Gebäudeschäden im Katastrophengebiet untersucht und eine detaillierte Datenerhebung der Schadensarten an Bauwerken vorgenommen. Die Ergebnisse der Untersuchungen wurden im Hinblick auf die Widerstandsfähigkeit der Gebäude gegen dynamische Beanspruchungen zu vereinfachten Regeln für eine erdbebensichere Konstruktion von nicht-ingenieurmäßigen Bauwerken zusammengefasst.
    Keywords: T1-995 ; Erdbebenschaden ; Erdbebensicherheit ; Erdbeben ; Erdbebenbelastung ; Bemessung ; Bauwerke ; nicht-ing ; Schadensanalyse ; ingenieurmäßig ; Indonesien ; bic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues
    Language: German
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  • 77
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    Entwicklung und Optimierung eines biotechnologischen Prozesses zur Herstellung mikrobieller Rhamnolipide auf Basis nachwachsender Rohstoffe (2021)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: Im Fokus dieser Arbeit steht die Entwicklung und Optimierung eines biotechnologischen Prozesses zur Herstellung von Rhamnolipiden auf Basis von nachwachsenden Rohstoffen. Ein Schwerpunkt lag hierbei auf der Entwicklung und Evaluierung einer Standardprozessführung, sowie eines auf einem Parallelbioreaktor basierenden, effizienten Screening-Systems. Ein Produk­tions­stammvergleich wurde durchgeführt. Zur Produktanalyse sollte FTIR-Spektroskopie als alternative Analysemethode eingesetzt werden.
    Keywords: TP155-156 ; ATR-FTIR ; Rhamnolipide ; Pseudomonas aeruginosa ; Biotenside ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TC Biochemical engineering::TCB Biotechnology
    Language: German
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  • 78
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    Proceedings - 31. Workshop Computational Intelligence : Berlin, 25. - 26. November 2021 (2021)
    KIT Scientific Publishing | KIT Scientific Publishing
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    Publication Date: 2024-04-11
    Description: The proceedings of the 31st Workshop on Computational Intelligence focus on methods, applications, and tools for fuzzy systems, artificial neural networks, deep learning, system identification, and data mining techniques.
    Keywords: Maschinelles Lernen ; Deep Learning ; Computational Intelligence ; Künstliche Intelligenz ; Neuronale Netze ; Maschine Learning ; Artificial Intelligence ; Neural Networks ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 79
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    Prozessintensivierung durch feldunterstützte Bioseparation : Elektrofiltration und in situ Magnetseparation (2021)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: Die Bioseparation ist mitunter der kostenintensivste Teil der Bioproduktion. Daher sind Technologien nötig, die das Downstream processing vereinfachen. Die Magnetseparation und die Elektrofiltration sind Methoden, die durch externe Felder einen Trennschritt verbessern und somit die Raum-Zeit-Ausbeute des Verfahrensschritts erhöhen können. Die Anwendung der Magnetseparation als in situ Separationsmethode und der Elektrofiltration als Proteinfraktionierungstechnik wird in dieser Arbeit erörtert.
    Keywords: TP155-156 ; Elektrofiltration ; Magnetseparation ; Downstream processing ; Bioverfahrenstechnik ; Biotechnologie ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TC Biochemical engineering::TCB Biotechnology
    Language: German
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  • 80
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    Porphyridium purpureum: Strukturierte Modellbildung und experimentelle Validierung der Stoffwechselreaktion auf Hell-Dunkel-Zyklen (2021)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: Weit über 25.000 Arten von Mikroalgen stellen ein bislang kaum erschlossenes Potential für die Biotechnologie dar. Sie bilden vielfältige Produkte wie Farbstoffe, ungesättigte Fettsäuren, Polysaccharide und Antioxidanten mit interessanten Einsatzgebieten u.a. in der Lebensmittel- und Kosmetikindustrie. Pharmazeutisch wirksame Produkte aus Mikroalgen sind bekannt, aber noch unzulänglich untersucht. Um ihre Bildung näher verstehen und in größerem Maßstab (scale up) durch geeignete Auswahl von Kultivierungsparametern beeinflussen zu können, wird ein mathematisches Modell entwickelt, welches das Wachstum und die Produktbildung einer einzelligen Mikroalge Porphyridium purpureum abbildet.Die Validierung des entwickelten mathematischen Modells erfolgt durch den Einsatz von geeigneten experimentell gewonnenen Kultivierungsdaten der Mikroalge Porphyridium purpureum in Abhängigkeit von Kultivierungsparametern wie der Lichtquantität oder -qualität in einem am Institut für Mechanische Verfahrenstechnik und Mechanik entwickelten Photobioreaktor. Die experimentellen Untersuchungen zu Wachstum und Produktbildung der Mikroalge sowie die Modellierung ihrer Stoffwechselaktivität zur besseren Vorhersagbarkeit und zur Auslegung von Pilotanlagen stellen die beiden Hauptschwerpunkte dieser Arbeit dar.
    Keywords: TP155-156 ; Beleuchtung ; Mikroalgen ; Stoffwechsel ; Mathematisches Modell ; Porphyridium cruentum ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TC Biochemical engineering::TCB Biotechnology
    Language: German
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  • 81
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    Entwicklung von Siebdruckpasten zur Herstellung von Glaslotfügungen für die Festoxidbrennstoffzelle (2021)
    KIT Scientific Publishing | KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: Solid oxide fuel cells are used to generate electricity from various fuel gases. The sealants between the stack-components should be gas-tight, mechanically stable and insulating. This work shows that glass ceramics can be used as sealant material for fuel cells. Solvent- and water-based suspensions are made from alkaline earth silicate glass and thick layers are produced using the screen-printing process. To demonstrate the applicability, they are soldered between steel and ceramic substrates.
    Keywords: Glaskeramik ; Festoxidbrennstoffzelle ; Siebdruck ; Rheologie ; glass ceramics ; solid oxide fuel cell ; screen printing ; rheology ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 82
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    Experimentelle Untersuchungen selbsterregter Druck-/Flammenschwingungen bei Wassereinspritzung in heizölbefeuerten Gasturbinenbrennkammern (2021)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: Eine mögliche angewandte Primärmaßnahme zur Reduzierung der NO-Emissionen bei Heizöl-Diffusionsflammen ist die Wassereinspritzung in die Flamme. Ein Nebeneffekt ist das spontane Auftreten selbsterregter Druckschwingungen. Die im Rahmen dieser Arbeit präsentierten Ergebnisse ermöglichen insgesamt die Vorhersage des Auftretens selbsterregter Druckschwingungen bei den untersuchten Drallbrennern und die Vermeidung dieser Schwingungen durch entsprechende Wahl der Betriebsparameter.
    Keywords: TP155-156 ; Wassereinspritzung ; Heizölverbrennung ; Druckschwingungen ; Diffusionsflamme ; Flammenpulsation ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TC Biochemical engineering::TCB Biotechnology
    Language: German
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  • 83
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    Verminderung der Verbackungsneigung von sprühgetrockneten laktosehaltigen Pulvern (2021)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: Bei der Herstellung von Molkepulver besteht die Schwierigkeit, dass die in dem Ausgangskonzentrat enthaltene gelöste Laktose während der Sprühtrocknung amorph erstarrt. Diese amorphe Form der Laktose ist instabil und kann bei zu feuchten oder warmen Bedingungen die Glasübergangstemperatur überschreiten und so klebrige Eigenschaften erhalten. Durch Nachkristallisationen konnten die Verbackungsneigungen der sprühgetrockneten laktosehaltigen Pulvern vermindert werden.
    Keywords: TP155-156 ; Lactose ; Einfriertemperatur ; Molkepulver ; Amorpher Zustand ; Zerstäubungstrocknung ; Kristallisation ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TC Biochemical engineering::TCB Biotechnology
    Language: German
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  • 84
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    Einfluss der Vermischung auf chemische Reaktionen im Taylor-Couette Reaktor am Beispiel der Polymerisation von Methacrylat (2021)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: In dieser Arbeit wurde der Taylor-Couette Reaktor hinsichtlich seiner Anwendbarkeit im kontinuierlichen Polymerherstellungsprozess des PMMA grundlegend charakterisiert. Es wurde der Einfluss der Vermischung auf ein polymerisierendes Reaktionssystem, bei dem es im kontinuierlichen Prozess zum Viskositätsanstieg kommt, untersucht. Die Variation der Prozessbedingungen und die Modellierung des Ablaufs der Polymerisationsreaktion stellen die Kernthemen dieser Arbeit dar.
    Keywords: TP155-156 ; Lösungspolymerisation von MMA ; Makro- und Mikrovermischung ; Taylor-Couette Reaktor ; Kontinuierliche Polymerisationsverfahren ; Polymerisationskinetik ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TC Biochemical engineering::TCB Biotechnology
    Language: German
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  • 85
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    Einfluss gleich- und gegensinniger Drehrichtung der Verbrennungsluftströme auf die Stabilisierung turbulenter Deppeldrall-Diffusionsflammen (2021)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: Die Verbrennungsluft der untersuchten Gasfilmdüse wird auf zwei Teilströme aufgeteilt, wobei der äußere Luftstrom den inneren konzentrisch umschließt. Daher steht als zusätzlicher Freiheitsgrad die gleich- oder gegensinnige Verdrallung der Einzelströme zur Verfügung.Die durchgeführten Experimente ergeben eine signifikante Erweiterung des Betriebsbereiches der Düse bei gegensinniger Verdrallung. Dies ist neben konvektivem Brennstoffttransport durch einen zusätzlichen Mündungswirbel maßgeblich auf die stabilere radiale Strömungsschichtung zurückzuführen.
    Keywords: TP155-156 ; Drallflamme ; Dralldüse ; Turbulente Strömung ; Boussinesq-Approximation ; Turbulente Verbr ; Diffusionsflamme ; Spannungstensor ; Drallstabilisierung ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TC Biochemical engineering::TCB Biotechnology
    Language: German
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  • 86
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    Untersuchung zur mikrobiologischen Stabilisierung von Emulsionen (2021)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: Viele Lebensmittel wie Milch liegen in Form von
    Keywords: TP155-156 ; Emulsion ; mikrobiologische Stabilität ; Inaktivierung von Mikroorganismen in Emulsionen ; Sterilfiltration ; Membranemulgieren ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TC Biochemical engineering::TCB Biotechnology
    Language: German
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  • 87
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    Thermodynamik von Kobaltoxid Anodenmaterialien für Lithium-Ionen-Batterien und ihr elektrochemisches Verhalten (2021)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: A thermodynamic approach is used to gain new insights into reaction mechanism and correlations between electrochemical and thermodynamic properties of conversion electrodes in the material system Li-Co-O. For this purpose, thermodynamic modeling using the CALPHAD method as well as measurements of the thermodynamic and electrochemical properties of the electrode materials were performed.
    Keywords: Lithium-Ionen-Batterien ; Konversionselektroden ; Co3O4 ; Thermodynamische Eigenschaften ; Lithium-Kobaltoxide ; Lithium-Ion-Battery ; conversion electrodes ; thermodynamic properties ; lithium-cobalt oxides ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 88
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    Zum Stofftransport in Brennstoffzellenmembranen : Untersuchungen mit Hilfe der konfokalen Mikro-Raman-Spektroskopie (2021)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: Im Rahmen dieser Arbeit wurde die Pervaporation von Wasser und Alkohol durch Direkt-Alkohol-Brennstoffzellenmembranen aus Nafion mit Hilfe der konfokalen Mikro-Raman-Spektroskopie untersucht. Durch den Vergleich von gemessenen Beladungsprofilen mit Simulationsrechnungen wurden bei unterschiedlichen Pervaporationsraten Diffusionskoeffizienten und Phasengleichgewichtsdaten bestimmt.
    Keywords: TP155-156 ; DEFC ; Brennstoffzelle ; Alkohol-Crossover ; Nafion ; Membran ; DMFC ; Polymerfilm ; Methanol-Crossover ; Stofftransport ; Raman-Spektroskopie ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TC Biochemical engineering::TCB Biotechnology
    Language: German
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  • 89
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    Untersuchungen zur Herstellung geträgerter mono- und bimetallischer Nanopartikel mithilfe von überkritischem CO2 (2021)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: Mono- and bimetallic nanoparticles were deposited onto different powdered supports by Supercritical Fluid Reactive Deposition (SFRD). Carbon dioxide was used as supercritical solvent and hydrogen as reduction agent. In order to optimize the production process unknown factors influencing the particle and product properties were extensively studied.
    Keywords: TP155-156 ; gold ; Überkritische Fluide ; Gold ; CO2 ; nanoparticle ; silver ; Nanopartikel ; SilberSupercritical fluids ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TC Biochemical engineering::TCB Biotechnology
    Language: German
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  • 90
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    Verhalten einer Massivholzbauweise unter Erdbebenlasten (2021)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: Die Eigenschaften einer Massivholzbauweise, die aufgrund ihrer Flexibilität und des einfachen Aufbaus besonders für den Einsatz in Erdbebengebieten geeignet ist, wurden untersucht. In experimentellen Untersuchungen wurden die Eigenschaften der Verbindungsmittel und von Wandscheiben in Originalgröße geprüft. Mit Hilfe numerischer Modelle wurde das Verhalten der Bauweise unter monotonen und zyklischen Lasten berechnet. Mit den Modellen wurde der Verhaltensbeiwert q bestimmt.
    Keywords: TA1-2040 ; Erdbeben ; Holzbau ; Wandscheiben ; Aussteifung ; Energiedissipation ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues::TBX History of engineering and technology
    Language: German
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  • 91
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    Über die Synärese kolloidaler Strukturen am Beispiel von Siliciumdioxid (2021)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: Silica is a naturally occuring solid substance with either a crystalline or amorphous structure. Industrially produced amorphous silica has a wide field of application. During the production process of amorphous silica, syneresis of the solid structures created occurs. In this work, the influences of the process parameters on syneresis are determined experimentally and a physically based model is proposed to describe syneresis.
    Keywords: TP155-156 ; Siliciumdioxid ; syneresis ; silica ; kolloidal ; Restrukturierung ; colloidal ; Synärese ; restructuring ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TC Biochemical engineering::TCB Biotechnology
    Language: German
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  • 92
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    Methodik für Wissens- und Prozessmanagement bei der interaktiven kollaborativen Montage variantenreicher Produkte (2021)
    KIT Scientific Publishing | KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: Collaboration-oriented knowledge and process management must support the integration of all systems involved, address specific questions of the division of labor within the control system, but also enable the planning and engineering of new variants and contribute to a continuous increase in quality through the persistence and analysis of process data.
    Keywords: Informationsmanagement ; Robotik ; Cobot ; Montage ; Kollaboration ; Information Management ; Robotics ; Assembly ; Collaboration ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 93
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    Registrierende Härtemessung an neutronenbestrahlten Materialien bei hohen Temperaturen (2021)
    KIT Scientific Publishing | KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: The present work investigates neutron-irradiated EUROFER97 by high-temperature indentation. Before, a test procedure is defined for the prototype device Karlsruhe high-temperature indenter. The procedure leads to a quality of the test results at high temperatures comparable to commercial devices at room temperature. The results contribute to a better understanding of structural materials of future fusion reactors.
    Keywords: Fusion ; Strukturmaterialien ; Härte ; Neutronenschäden ; Hochtemperatur ; Hardness ; High-temperature ; structural materials ; Neutron-induced defects ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 94
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    Untersuchung der einstufigen Gasphasenhydrierung von Dimethylmaleat zur Hertellung von gamma-Butyrolacton, 1,4-Butandiol und Tetrahydrofuran (2021)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: Für die Herstellung von 1,4-Butandiol haben neben dem technisch ausgereiften Reppe-Prozess in den letzten Jahren neue Synthesetechnologien an Bedeutung gewonnen. Hierzu zählt die Gasphasenhydrierung von Dimethylmaleat, der Davy-Prozess.Vorteile sind die milden Reaktionsbedingungen und die kombinierte Herstellung von 1,4-Butandiol mit den Folgeprodukten g-Butyrolacton und Tetrahydrofuran. Gegenstand der vorliegenden Arbeit war die gezielte Vermeidung von ungewollter Polymerbildung bei der einstufigen Prozessführung der Gasphasenhydrierung von Dimethylmaleat. Zudem wurden mit einem Cu/ZnO/Al2O3-Katalysator detaillierte kinetische Messungen durchgeführt und eine qualitative und quantitative Beschreibung der Reaktionskinetik mit Hilfe eines möglichst einfachen Reaktionsnetzes realisiert.
    Keywords: TP155-156 ; Reaktionskinetik ; Gasphasenreaktion ; Katalytische Hydrierung ; Butandiole ; Butyrolactone ; Maleinsäureester ; Tetrahydrofuran ; Maleinsäuredimethylester ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TC Biochemical engineering::TCB Biotechnology
    Language: German
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  • 95
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    Innovative Wandbausysteme aus Holz unter Erdbebeneinwirkungen (2021)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: Neben der bekannten Holztafel- und Holzskelettbauweise entwickelten sich in den letzten Jahren verschiedene innovative Wandbausysteme aus Holz, von denen zwei im Rahmen dieser Arbeit hinsichtlich ihrer Eigenschaften unter Erdbeben untersucht wurden. In experimentellen Untersuchungen wurden einzelne Verbindungen und auch ganze Wandscheiben der Bauweisen untersucht. Das Verhalten von Verbindungen und Wandscheiben kann mit den erstellten numerischen Modellen berechnet werden.
    Keywords: TA1-2040 ; Erdbeben ; Wandscheiben ; Hysterese ; Verhaltensbeiwert ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues::TBX History of engineering and technology
    Language: German
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  • 96
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    Automatische Erzeugung langzeitverfügbarer Punktmerkmalskarten zur robusten Lokalisierung mit Multi-Kamera-Systemen für automatisierte Fahrzeuge (2021)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: Automated vehicles heavily rely on accurate self-localization to operate safely and efficiently in dynamic road traffic scenarios. In this work, an iterative and robust approach to create highly accurate maps comprising any number of drives of arbitrary length with constant computation complexity is proposed. Furthermore, a high-precision self-localization method using multiple cameras covering the surrounding environment is presented.
    Keywords: SLAM ; Automatisiertes Fahren ; Fahrzeugsehen ; Umweltwahrnehmung ; Lokalisierung ; Automated Driving ; Machine Vision ; Environment Perception ; Mapping and Localization ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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  • 97
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    Nutzung des Zentrifugalkraftfeldes für die Vorhersage der Langzeitstabilität von kosmetischen Emulsionen (2021)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: Die Bestimmung der Haltbarkeitsdauer kosmetischer Emulsionen ist von großem industriellen Interesse. Bisherige Verfahren zur Bestimmung der Stabilität von Emulsionen sind nur sehr bedingt auf langzeitstabile Emulsionen anwendbar.In dieser Arbeit wurde erstmals eine optische Zentrifuge zur Vorhersage der Langzeitstabilität von kosmetischen Emulsionen eingesetzt.Diese Methode erfordert keine Wiederholungsmessungen und wurde sowohl auf W/O- als auch auf O/W-Emulsionen angewandt.
    Keywords: TP155-156 ; Semantic Web ; Wissensmanagement ; Verbandstheorie ; Formale Begriffsanalyse ; Data Mining ; Terminologische Logik ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TC Biochemical engineering::TCB Biotechnology
    Language: German
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  • 98
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    Fortgeschrittene Methoden zur Beschreibung der Wirbelschicht-Sprühgranulation (2021)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: A multiscale simulation model is developed by combining the CFD Simulation and the population balance equations to describe a transient process of fluidized bed spray granulation. In this model, the CFD simulation generates the particle growth and nucleation rates in consideration of fluid dynamics, drying and multiple interactions, such as drops deposition, dust integration and nucleation between different particles (drops, dust and granules).
    Keywords: TP155-156 ; CFD-Simulation ; Keimbildungsrate ; Partikel-Populationsbilanzen ; Wirbelschicht-Sprühgranulation ; Multiscale-Simulation ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TC Biochemical engineering::TCB Biotechnology
    Language: German
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  • 99
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    Pyrolyse- und Aufkohlungsverhalten von C2H2 bei der Vakuumaufkohlung von Stahl (2021)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: Im Rahmen der Arbeit wurde das Zusammenwirken von Pyrolyse und Aufkohlungsverhalten von Ethin bei der Vakuumaufkohlung von Stahl untersucht. Es wurde aus Messdaten ein formalkinetisches Modell zur Beschreibung der Pyrolysereaktionen von Ethin unter typischen Aufkohlungsbedingungen aufgestellt. Aus experimentellen Untersuchungen mit einer Thermowaage konnten wichtige Erkenntnisse über das Aufkohlungsverhalten von Ethin und die gegenseitige Beeinflussung von Aufkohlung und Pyrolyse gezogen werden.
    Keywords: TP155-156 ; Rußbildung ; Aufkohlung ; Pyrolyse ; Acetylen ; Einsatzhärten ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TC Biochemical engineering::TCB Biotechnology
    Language: German
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  • 100
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    Vorausschauende Regelung von Fahrzeugsystemen durch stochastische Vorhersage der Fahrzeugdynamik (2021)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: Predictive control of vehicle systems often requires application of forecasting models. In this work a stochastic framework for generating forecasts of vehicle dynamics is proposed, to directly address uncertainty within the control algorithms. Building on this framework, the predictive control of vehicle systems with stochastic optimal control algorithms is investigated, implemented and evaluated for two exemplary vehicle systems.
    Keywords: mpc ; driver behavior ; vehicle system ; forecast ; predictive control ; MPC ; Fahrerverhalten ; Fahrzeugsystem ; Vorhersage ; Vorausschauende Regelung ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
    Language: German
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