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  • thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TH Energy technology and engineering::THR Electrical engineering  (41)
  • KIT Scientific Publishing  (41)
  • Hannover
  • München : Beck
  • German  (41)
  • Czech
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  • 1
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    Verbesserungen beim Laserschneiden mit Methoden des maschinellen Lernens (2022)
    KIT Scientific Publishing | KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: Although laser cutting of metals is a well-established process, there is considerable potential for improvement with regard to various requirements for the manufacturing industry. First, this potential is identified and then it is shown how improvements could be made using machine learning. For this purpose, a database was generated. It contains the process parameters, RGB images, 3D point clouds and various quality features of almost 4000 cut edges.
    Keywords: cut quality ; convolutional neural network ; machine learning ; stainless steel ; Laser cutting ; Schnittqualität ; Maschinelles Lernen ; Edelstahl ; Laserschneiden ; Faltendes neuronales Netz ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TH Energy technology and engineering::THR Electrical engineering
    Language: German
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  • 2
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    Fahrerintentionserkennung zur lichtbasierten Kommunikation mit Fußgängern (2022)
    KIT Scientific Publishing
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    Publication Date: 2024-04-11
    Description: Especially pedestrians rely on the interaction with other road users. The introduction of automated driving systems withdraws this communication from drivers and thus, vehicles need to interact with pedestrians. Therefore, multiple vehicle-pedestrian-communication concepts are evaluated. A driver intention prediction allows pedestrians to learn these newly introduced signals, while driver and vehicle communicate simultaneously.
    Keywords: Fahrzeug-Fußgänger-Kommunikation; Symbole; Farben; Neuronale Netze; Automatisiertes Fahren; Vehicle-Pedestrian-Communication; Symbols; Colors; Neural Networks; Automated Driving ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TH Energy technology and engineering::THR Electrical engineering
    Language: German
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  • 3
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    Entwicklung von Modellen zur speichergestützten Versorgung mit regenerativen Energien in Inselnetzen (2022)
    KIT Scientific Publishing
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    Publication Date: 2024-04-11
    Description: The proposed method for the configuration of renewably powered energy supply systems as isolated grids backed by energy storage technology and based on statistical models shows the economic viability of such a system. The energy supply system was configured by implementing cost models using an optimization software. Validation was achieved through comparison with measurements taken from two different existing energy supply areas.
    Keywords: Windenergie; Solarenergie; Energiespeicher; energieautark; Wasserstoff; energy; renewable; wind; solar; hydrogen ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TH Energy technology and engineering::THR Electrical engineering
    Language: German
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  • 4
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    Breitbandige Frequenzweichen für die Parallelisierung von Millimeterwellen-Messtechnik (2021)
    KIT Scientific Publishing | KIT Scientific Publishing
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    Publication Date: 2024-04-11
    Description: This work describes the novel use of broadband continuous diplexers that could be integrated into on-wafer probes to parallize millimeter wave on-wafer measurement equipment. A model-based method for the efficient design of diplexers with a large number of adjustable parameters allows the realization of a DC – 110 GHz – 170 GHz diplexer for the first time.
    Keywords: Frequenzweiche ; Diplexer ; Multiplexer ; Filter ; Millimeterwellen-Filter ; diplexer ; multiplexer ; filter ; millimeter-wave filter ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TH Energy technology and engineering::THR Electrical engineering
    Language: German
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  • 5
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    Prospective Life Cycle Assessment of High-Temperature Superconductors for Future Grid Applications (2022)
    KIT Scientific Publishing
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    Publication Date: 2024-04-11
    Description: High-temperature superconductors have distinct advantages compared to conventional conductors. Below their critical temperature, superconductors have immeasurably low ohmic losses. To maintain the superconducting state, superconductors require constant cooling. This study aims at identifying the environmental impacts of the application of superconductors in future grid technologies such as superconducting power cables.
    Keywords: Hochtemperatursupraleiter; Supraleitende Kabel; Ökobilanz; Energieverteilung; High-temperature superconductor; Superconducting cable; Life cycle assessment; Energy transmission ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TH Energy technology and engineering::THR Electrical engineering
    Language: German
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  • 6
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    Adaptive Modulationsverfahren für die schmalbandige Powerline-Kommunikation in Niederspannungsnetzen (2022)
    KIT Scientific Publishing | KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: Powerline communications utilize the existing energy distribution network for information transmission. In this work, the low voltage grid is investigated as a transmission channel for frequencies up to 500 kHz. Based on characterizing the channel with regard to its cyclostationary properties, novel adaptive transmission methods are developed. The presented methods are evaluated under realistic channel conditions.
    Keywords: adaptive modulation ; cyclostationary analysis ; channel measurement ; smart grid ; power line communications ; adaptive Modulation ; Kanalmessung ; Smart Grid ; Powerline-Kommunikation (PLC) ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TH Energy technology and engineering::THR Electrical engineering
    Language: German
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  • 7
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    Neue Methode zur Bestimmung und Beschreibung der taktfrequenten Stromsteigungen in Drehstromsynchronmaschinen (2022)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: Knowledge of the cycle-frequency changes in the machine currents is of great advantage for many methods of controlling modern, highly utilized electrical machines. But how can these changes in machine currents be reliably measured during operation? Is the very short time of the individual switching states sufficient? And how can the changes in the currents be described mathematically and interpreted physically? This work provides an answer to these questions.
    Keywords: Synchronmaschine; Regelung; Least-Squares-Schätzer; Modellbildung; Parameteridentifikation; synchronous machine; control; Least-Squares-Estimator; modeling; parameter identification ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TH Energy technology and engineering::THR Electrical engineering
    Language: German
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  • 8
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    Multisensorielle Navigation und Kartierung in schwierigen Bedingungen (2023)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: Robust navigation as well as mapping of the environment are critical for autonomous aerial vehicles. This is especially challenging in poor visual conditions or degraded GNSS. Therefore, this thesis proposes multi-sensor fusion approaches based on FMCW radar, cameras and inertial sensors. These approaches can cope with such challenging conditions as demonstrated in different scenarios.
    Keywords: Sensorfusion; Navigation; Kartierung; FMCW-Radar; Thermalkamera; sensorfusion; navigation; mapping; FMCW radar; thermal camera ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TH Energy technology and engineering::THR Electrical engineering
    Language: German
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  • 9
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    Untersuchung der Augensicherheit durch Multi-Pulsbestrahlung für LiDAR-Anwendungen (2022)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: LiDAR (Light detection and ranging) represents one of the key technologies for autonomous driving. For this reason, this work is concerned with the question of eye safety of the laser-based technology. For this purpose, investigations on laser-tissue interactions, laser-induced damage thresholds and mechanisms by multi-pulse trains were performed as well as assessments according to the laser safety standard in Europe (DIN EN 60825) and the USA (ANSI Z.136) were applied.
    Keywords: Laser; Schädigung; Netzhaut; Schwellenwerte; Mehrfachpulse; wiederholte; Laser-Gewebe-Wechselwirkung; Augensicherheit; Lasersicherheit; Fotochemie; Damage; retina; thresholds; multiple pulses; repetitive; Laser-tissue-interaction; eye safety; laser safety; photo-chemical ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TH Energy technology and engineering::THR Electrical engineering
    Language: German
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  • 10
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    Technologische Beschreibung und physiologische Bewertung eines hochaufgelösten Laserscanner- Scheinwerfersystems (2023)
    KIT Scientific Publishing
    Details
    Publication Date: 2024-04-11
    Description: The approach of a laser scanning headlamp for adaptive light functions includes six laser sources which are deviated on a micro mirror. The oscillation of that mirror generates an extended light distribution on a white light converter which is then projected on the road. This work describes that approach and presents methods to evaluate the homogeneity of headlamp light distributions.
    Keywords: automotive light functions; homogeneity; laser scanning; Headlamp; Fahrzeug-Lichtfunktionen; Homogenität; Laser-Scanner; Scheinwerfer ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TH Energy technology and engineering::THR Electrical engineering
    Language: German
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