Hochschule Konstanz University of Applied Sciences
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English-medium instruction (EMI) in German universities
No full textFor some years, universities in countries where the first language is not English choose English as the medium of instruction. In German universities, instruction in German is still the dominant form, which makes university study in Germany less accessible to international students. To attract international students and to improve career prospects for home students, many German universities offer programmes taught in English or in a combination of German and English. It is widely expected that the implementation of EMI-programmes leads to improvements in English language proficiency (ELP). However, it has emerged that substantial gains in ELP in EMI programmes will only occur as the result of content and language integrated learning
Codes over Eisenstein integers for the Niederreiter cryptosystem
No full textLarge-scale quantum computers threaten today's public-key cryptosystems. The code-based McEliece and Niederreiter cryptosystems are among the most promising candidates for post-quantum cryptography. Recently, a new class of q-ary product codes over Gaussian integers together with an efficient decoding algorithm were proposed for the McEliece cryptosystems. It was shown that these codes achieve a higher work factor for information-set decoding attacks than maximum distance separable (MDS) codes with comparable length and dimension. In this work, we adapt this q-ary product code construction to codes over Eisenstein integers. We propose a new syndrome decoding method which is applicable for Niederreiter cryptosystems. The code parameters and work factors for information-set decoding are comparable to codes over Gaussian integers. Hence, the new construction is not favorable for the McEliece system. Nevertheless, it is beneficial for the Niederreiter system, where it achieves larger message lengths. While the Niederreiter and McEliece systems have the same level of security, the Niederreiter system can be advantageous for some applications, e.g., it enables digital signatures. The proposed coding scheme is interesting for lightweight Niederreiter cryptosystems and embedded security due to the short code lengths and low decoding complexity
Training and Preparing Tomorrow’s Workforce for the Fourth Industrial Revolution
Get PDFWe call for a paradigm shift in engineering education. We are entering the era of the Fourth Industrial Revolution (“4IR”), accelerated by Artificial Intelligence (“AI”). Disruptive changes affect all industrial sectors and society, leading to increased uncertainty that makes it impossible to predict what lies ahead. Therefore, gradual cultural change in education is no longer an option to ease social pain. The vast majority of engineering education and training systems, which have remained largely static and underinvested for decades, are inadequate for the emerging 4IR and AI labour markets. Nevertheless, some positive developments can be observed in the reorientation of the engineering education sector. Novel approaches to engineering education are already providing distinctive, technology-enhanced, personalised, student-centred curriculum experiences within an integrated and unified education system. We need to educate engineering students for a future whose key characteristics are volatility, uncertainty, complexity and ambiguity (“VUCA”). Talent and skills gaps are expected to increase in all industries in the coming years. The authors argue for an engineering curriculum that combines timeless didactic traditions such as Socratic inquiry, mastery-based and project-based learning and first-principles thinking with novel elements, e.g., student-centred active and e-learning with a focus on case studies, as well as visualization/metaverse and gamification elements discussed in this paper, and a refocusing of engineering skills and knowledge enhanced by AI on human qualities such as creativity, empathy and dexterity. These skills strengthen engineering students’ perceptions of the world and the decisions they make as a result. This 4IR engineering curriculum will prepare engineering students to become curious engineers and excellent collaborators who navigate increasingly complex multistakeholder ecosystems
Docking Control of a Fully-Actuated Autonomous Vessel using Model Predictive Path Integral Control
No full textThis paper presents the docking control of an autonomous vessel using the nonlinear Model Predictive Path Integral (MPPI) approach. This algorithm is based on a path integral over stochastic trajectories and can be parallelized easily. The controller parameters are tuned offline using knowledge of the system and simulations, including nonlinear state and disturbance observer. The cost function implicitly contains information regarding the surrounding of the docking position. This approach allows continuous optimization of the trajectory with respect to the system state, disturbance state and actuator dynamics. The control strategy has been tested in full-scale experiments using the solar research vessel Solgenia. The investigated MPPI controller has demonstrated excellent performance in both, simulation and real-world experiments. This paper addresses the question of how the MPPI algorithm can be applied to dock a fully-actuated vessel and what benefits its application achieves
Nachhaltigkeit in evolutorischer Perspektive
No full textNachhaltige Entwicklung umfasst verschieden weite Definitionen und konzeptionelle Zugänge. Im Zentrum der Diskussion steht die zukünftige Entwicklungsfähigkeit von Biosphäre und Anthroposphäre im Sinne einer Koevolution. Thematisiert werden die zunehmende Eingriffstiefe in die Natur sowie die intersystemische Konkurrenz zwischen diesen beiden Sphären. Das evolutorische Verständnis der naturalen Produktion unterscheidet sich vom herkömmlichen Produktionsverständnis der Ökonomik. Aus diesen verschiedenen Zugängen ergibt sich ein Problemlösungsspektrum, das sich über eine integrative Verknüpfung der drei Strategieansätze und Handlungsfelder Effizienz, Konsistenz und Suffizienz erstreckt
Technoökonomie der Energiewende
No full textDas 'essential' behandelt die technoökonomischen Grundlagen und deren Anwendung auf die Schlüsseltechnologien der Energiewende. Zunächst erfolgt eine inhaltliche Klärung und formale Herleitung von statischen und dynamischen Skaleneffekten sowie eine Übersicht bzgl. deren unterschiedlicher Kombinationsmöglichkeiten für die Diskussion von Best- und Worst-Case-Szenarien. Für eine Anwendung dieser Grundlagen stehen zunächst die diversen brennstoffbasierten KWK-Varianten, insbesondere Blockheizkraftwerke (BHKW), im Zentrum. Anschließend erfolgt eine Ausweitung der Betrachtungen auf die regenerativen Energietechnologien Photovoltaik und Windkraft. Mit einem kurzen Blick auf weitere Technologien wie Wärmepumpen sowie elektrische und thermische Energiespeicher finden diese Darstellungen ihren Abschluss