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  • Books  (155)
  • thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TH Energy technology and engineering::THR Electrical engineering  (87)
  • QD1-999  (46)
  • ASTROPHYSICS
  • Analytical Chemistry and Spectroscopy
  • Chemical Engineering
  • Deutschland
  • KIT Scientific Publishing  (135)
  • Verlag Julius Klinkhardt  (16)
  • Springer Fachmedien Wiesbaden  (4)
  • Friedr. Vieweg & Sohn, Braunschweig
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  • 1
    Publication Date: 2024-04-11
    Description: The design of approaches for future market-based energy network operation faces the technical challenge of needing to coordinate a vast number of network participants spatially and temporally, in order to balance energy supply and demand, while achieving secure network operation. To meet this challenge, the research field of transactive control emerged. Within this work a new transactive control approach for coupled electric power and district heating networks is presented.
    Keywords: Transactive Control; Wärmenetze; Stromnetze; Sektorenkopplung; Energiemärkte; District Heating Networks; Electric Power Networks; Energy Markets ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TH Energy technology and engineering::THR Electrical engineering
    Language: English
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  • 2
    Publication Date: 2024-04-05
    Description: Ein wesentlicher Aspekt dieser Arbeit ist die Suche nach besseren Donorkomponenten für die, mit Hilfe der Kokondensationstechnik dargestellten, Germaniummonohalogenidlösungen.Des Weiteren befaßt sich die Arbeit mit der Folgechemie von metalloiden Germaniumclustern sowohl in Lösung, als auch in der Gasphase.
    Keywords: QD1-999 ; metalloid ; Kokondensation ; Cluster ; Germanium ; Folgechemie ; thema EDItEUR::P Mathematics and Science::PN Chemistry
    Language: German
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  • 3
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    KIT Scientific Publishing
    Publication Date: 2024-04-11
    Description: The increasing use of automated laser welding processes causes high demands on process monitoring. This work demonstrates methods that use a camera mounted on the focussing optics to perform pre-, in-, and post-process monitoring of welding processes. The implementation uses machine learning methods. All algorithms consider the integration into industrial processes. These challenges include a small database, limited industrial manufacturing inference hardware, and user acceptance.
    Keywords: CNN; stacked dilated U-Net; semantic segmentation; hairpin technology; laser welding; quality assurance; machine learning; Qualitätssicherung; semantische Segmentierung; Hairpin Technologie; Laserschweißen; Maschinelles Lernen; Künstliche Intelligenz ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TH Energy technology and engineering::THR Electrical engineering
    Language: English
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  • 4
    Publication Date: 2024-04-11
    Description: Ultrasound Tomography is an emerging technology for medical imaging that is quickly approaching its clinical utility. Research groups around the globe are engaged in research spanning from theory to practical applications. The International Workshop on Medical Ultrasound Tomography 2019 brought together scientists to exchange their knowledge and discuss new ideas and results in order to boost the research in Ultrasound Tomography.
    Keywords: Ultraschall Tomographie ; Medizinische Bildgebung ; Ultrasound Tomography ; Medical Imaging ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TH Energy technology and engineering::THR Electrical engineering
    Language: English
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  • 5
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    KIT Scientific Publishing | KIT Scientific Publishing
    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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  • 6
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    KIT Scientific Publishing
    Publication Date: 2024-04-11
    Description: The aim of this work is the development of a Radar system for consumer applications. It is capable of tracking multiple people in a room and offers a touchless human-machine interface for purposes that range from entertainment to hygiene.
    Keywords: Radar; FMCW; Gestenerkennung; Tracking; gesture recognition; tracking ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TH Energy technology and engineering::THR Electrical engineering
    Language: English
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  • 7
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    KIT Scientific Publishing
    Publication Date: 2024-04-11
    Description: This work presents a real-time dynamic pricing framework for future electricity markets. Deduced by first-principles analysis of physical, economic, and communication constraints within the power system, the proposed feedback control mechanism ensures both closed-loop system stability and economic efficiency at any given time. The resulting price signals are able to incentivize competitive market participants to eliminate spatio-temporal shortages in power supply quickly and purposively.
    Keywords: Strommarkt; Dynamische Optimierung; Spieltheorie; Nichtlinearer Reglerentwurf; Mathematische Modellbildung; Electricity Market; Dynamic Optimization; Game Theory; Nonlinear Control; Mathematical Modeling ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TH Energy technology and engineering::THR Electrical engineering
    Language: English
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  • 8
    Publication Date: 2024-04-11
    Description: A gyrotron is used in magnetically confined plasma experiments for heating, current drive, plasma stabilization and plasma diagnostics. This work presents the first design and construction of a multi-frequency / multi-purpose coaxial-cavity pre-prototype gyrotron operating at (136)/170/204 GHz with an output power of 2 MW. It is the first step towards operating frequencies up to 240 GHz using the coaxial-cavity gyrotron technology.
    Keywords: mode generator; multi-frequency operation; electron vacuum tube; gyrotron; nuclear fusion; Modenerzeuger; Mehrfrequenzbetrieb; Vakuumröhre; Gyrotron; Kernfusion ; thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TH Energy technology and engineering::THR Electrical engineering
    Language: English
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  • 9
    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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  • 10
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    Verlag Julius Klinkhardt
    Publication Date: 2024-03-29
    Description: Contrary to the assumption of worldwide diffusion processes of internationally circulating reform ideas in education there are examples of regions that resist. In the present study, the phenomenon of incorporating international reform ideas into local education systems is examined using new institutionalism as a theory for its explanatory power of worldwide diffusion processes in education together with a set of cases that offer semi-lab-like conditions: Not all German federated states have adopted Bachelor’s and Master’s degrees for teacher training; some have maintained the state examination. Based on this empirical finding, the question of the dissertation is: Whether and how were the Bachelor’s and Master’s degree in German teacher training implemented on the federated statelevel in the period between 1999 and 2013? It can be shown that the federal ministers of higher education specified three core characteristics of the Bologna Process, namely the introduction of Bachelor’s and Master’s degrees, a credit point system, and modularisation. A decision of the Standing Conference of the Ministers of Education and Cultural Affairs of Germany made in 2005 further ensured that the reformed degrees were recognised nationwide for teachers as well. The educational organisations’ demands were characterised by a large number of positive and only a few negative votes concerning the implementation of the Bologna Process in German teacher education. To provide specific insights into the reform process, this study focuses on teacher training for secondary school teachers, comparing the teacher training regulations as of 1999 with all subsequent changes until 2013 to obtain the degree of change for each federated state. As a result, it can be stated that eight states introduced reformed degrees into secondary school teacher education and eight states kept the state examination. Both groups are then compared as to whether a change of the degree towards Bachelor’s and Master’s is more likely to be accompanied by further reforms. The results suggest that while changes have occurred in all states, the percentage increase of courses in education and didactics, as well as the increased study duration, correlates positively with a change of the degree structure. Therefore one can interpret that the Bologna reforms, especially those concerning the degree structure, were used to implement other curricular and structural reforms that were not related to the Bologna Process itself. In the last step, plenary debates on the federated state level regarding the introduction of these Bologna reforms are analysed to examine the justifications for the introduction of a change in the degree structure, as well as for maintaining the state examination. Justifications or strategies for preserving the state examination are particularly relevant because they act against the political and public expectations analysed earlier. In a nutshell, it can be stated that the innovative strength of the partial reforms adopted in the hybrid model and the exclusion of a fundamental criticism of Bachelor’s and Master’s degrees are used as a strategy to reject the implementation of a new degree structure without being interpreted as non-innovative. Federated states that implemented the degree reform referenced decisions made in other states or regions, as well as possible negative consequences of not implementing the degrees, to support their decision while also presenting it within the discourse as a window of opportunity for more fundamental reforms in teacher training.
    Description: Entgegen der Annahme weltweiter Diffusionsprozesse international kursierender Reformideen in der Bildungspolitik gibt es Beispiele für Regionen, die sich widersetzen. In der vorliegenden Arbeit wird dieses Phänomen mithilfe eines Sets an Fällen untersucht, die in ihrer Gesamtheit quasi-laborartige Bedingungen bieten: Im Zuge des Bologna-Prozesses haben einige Bundesländer die Abschlüsse ‚Bachelor‘ und ‚Master‘ für die Lehrer*innenbildung übernommen, während andere die Staatsprüfung beibehalten haben. Ausgehend von diesem Befund wird in der Arbeit die Frage untersucht, mit welchen Strategien die Bologna-Reformen in der Lehrer*innenbildung der einzelnen Bundesländer in den Jahren von 1999 bis 2013 politisch umgesetzt bzw. wie deren Implementation verhindert wurde. Die Analyse der Erwartungen bildungspolitischer Akteure zeigt, dass die Hochschulminister*innen im Bologna-Prozess drei Kernmerkmale für die Organisation von Studiengängen festlegten, nämlich Bachelor- und Masterabschlüsse, ein Leistungspunktesystem und die Modularisierung. Darüber hinaus wurde die Bologna-Reform durch die Kultusministerkonferenz im Jahr 2005 auch für die Lehrer*innenbildung deutschlandweit anerkannt. Der Diskurs weiterer wichtiger bildungspolitischer Akteure zeichnet sich darüber hinaus durch eine Vielzahl an positiven gegenüber nur wenigen negativen Stimmen zur Implementation des Bologna-Prozesses in der Lehrer*innenbildung aus. Um die tatsächlichen Reformen differenziert betrachten zu können, wird der Fokus der zweiten Untersuchung allein auf das gymnasiale Lehramt gelegt. Dabei wird für jedes Bundesland die Gestaltung der Studienphase im Jahr 1999 mit dem Stand im Jahr 2013 verglichen. Dabei kann festgestellt werden, dass in allen Bundesländern sowohl das Leistungspunktesystem als auch die Modularisierung eingeführt wurden. Eine Reform der Staatsprüfung hin zu einem Masterabschluss wurde im Untersuchungszeitraum jedoch nur in acht der 16 Bundesländer umgesetzt. Die Einführung der Bachelor- und Masterabschlüsse ging zudem mit einer prozentualen Erhöhung des Anteils der Berufswissenschaften, definiert als Fachdidaktiken, Bildungswissenschaften und Schulpraktika, sowie einer Verlängerung der Studienzeit einher. Dies kann dahingehend interpretiert werden, dass die Bologna- Reformen insgesamt und die Einführung der Bachelor- und Masterabschlüsse im Besonderen als window of opportunity genutzt wurden, um auch andere Reformen umzusetzen. In der dritten Untersuchung werden Plenardebatten in den Bundesländern im Rahmen der Einführung der Bologna-Reformen analysiert, um die Begründungen für eine Reform bzw. für die Beibehaltung der Staatsprüfung zu untersuchen. Insbesondere Begründungen bzw. Strategien der Nicht-Einführung sind dabei besonders relevant, weil sie gängigen theoretischen Annahmen der Diffusion von international kursierenden Reformideen widersprechen. Zusammenfassend kann festgehalten werden, dass die Innovationskraft bzw. Passfähigkeit des eigenen Gesetzentwurfs unter Ausschluss einer Fundamentalkritik an den Bachelor- und Masterabschlüssen als Strategie verwendet wurden, um die Einführung dieser Abschlüsse zu umgehen, ohne gleichzeitig als rückständig im Vergleich zu den Ländern mit einer vollständigen Implementation zu gelten. Bei einer Implementation der Abschlüsse dient neben dem diskursiv hergestellten window of opportunity auch der Verweis auf an anderen Orten getroffene Entscheidungen und den daraus resultierenden negativen Konsequenzen für das eigene Bundesland bei einer etwaigen Nicht-Implementation als legitimitätsstiftend.
    Keywords: Lehrerbildung ; Lehrerausbildung ; Bologna-Prozess ; Hochschulpolitik ; Bachelor-Studiengang ; Master-Studiengang ; Lehramtsstudiengang ; Hochschulreform ; Hochschule ; Entscheidung ; Strategie ; Studiengang ; Studienordnung ; Bildungspolitik ; Gymnasium ; Modularisierung ; Staatsprüfung ; Lehramtsprüfung ; Argumentation ; Debatte ; Politik ; Bundesland ; Nationaler Vergleich ; Baden-Württemberg ; Bayern ; Berlin ; Brandenburg ; Bremen ; Hamburg ; Hessen ; Mecklenburg-Vorpommern ; Niedersachsen ; Nordrhein-Westfalen ; Rheinland-Pfalz ; Saarland ; Sachsen ; Sachsen-Anhalt ; Schleswig-Holstein ; Thüringen ; Deutschland ; Teacher education ; Teachers' training ; Teacher training ; Higher education policy ; University policy ; Bachelor course ; Master course ; Preservice Teacher Education ; Higher education reform ; University reform ; Higher education institute ; Strategy ; Channel of academic studies ; Course of studies ; Course of study ; Study regulations ; Educational policy ; German academic secondary school ; Grammar School ; Secondary school ; Modularization ; First state examination for the teaching profession ; Politics ; Baden-Wurtemberg ; Baden-Wurttemberg ; Mecklenburg-Western Pomerania ; Lower Saxony ; North Rhine-Westphalia ; North-Rhine Westphalia ; Rhineland-Palatinate ; Saxony ; Saxony-Anhalt ; Thuringia ; Germany ; Teaching post ; Teaching profession ; bic Book Industry Communication::J Society & social sciences::JN Education::JNM Higher & further education, tertiary education::JNMN Universities ; thema EDItEUR::J Society and Social Sciences::JN Education::JNM Higher education, tertiary education
    Language: German
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