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ARNOLD HARTLEY GIBSON: Hydraulics professor and textbook author
(2022)The United Kingdom was the leading nation in the 19th century, then the British Empire. Despite this fact, hydraulic engineering was not a main concern. Scientists rather worked in maritime hydraulics and naval architecture. In all the above three topics, textbooks were not really available, because both engineers and scientists rather published their works in scientific journals. Gibson, an indirect successor of Osborne Reynolds at the ...Working Paper -
Chance-constrained OPF: A Distributed Method with Confidentiality Preservation
(2022)Given the increased percentage of wind power in power systems, chance-constrained optimal power flow (CC-OPF) calculation, as a means to take wind power uncertainty into account with a guaranteed security level, is being promoted. Compared to the local CC-OPF within a regional grid, the global CC-OPF of a multi-regional interconnected grid is able to coordinate across different regions and therefore improve the economic efficiency when ...Working Paper -
Control-aware Probabilistic Load Flow for Transmission Systems: An Analytical Method
(2022)Probabilistic load flow (PLF) calculation, as a fundamental tool to analyze transmission system behavior, has been studied for decades. Despite a variety of available methods, existing PLF approaches rarely take system control into account. However, system control, as an automatic buffer between the fluctuations in random variables and the variations in system states, has a significant impact on the final PLF result. To consider control ...Working Paper -
Resources for Co-Designing Games with Children
(2022)As part of a co-design project, we designed and assembled a kit of resources for co-designing games with children. This kit is intended for researchers or designers who wish to co-design computer games with children. Moreover, our kit is specifically focused on raising interest and understanding of game design among the participants, and has been tested with girls aged 11-12. In this document, we describe each of the resources, their ...Working Paper -
Designing, developing, evaluating, and Implementing a Smartphone-delivered, rule-based COnVERsational agent (DISCOVER): a conceptual framework
(2022)JMIR PreprintsBackground: Conversational agents (CAs), also known as chatbots are computer programs that simulate human conversations using predetermined rule-based responses or employing artificial intelligent algorithms. They are increasingly used in healthcare, particularly via smartphones. There is, at present no conceptual framework guiding the development of smartphone rule-based CAs in healthcare. To fill this gap we propose structured and ...Working Paper -
Power Shifts, Emigration, and Population Sorting
(2022)KOF Working PapersWe investigate the consequences of a peaceful shift of power from one social group to another. Theoretically, we show that an individual’s decision to stay put or migrate depends on the difference between the political preferences of groups and the change in tax. Empirically, we use the case of the unexpected creation of the Canton of Jura in Switzerland, which witnessed a power shift from German to French speakers in the 1970s. We find ...Working Paper -
Correspondence between de Saint-Venant and Boussinesq
(2022)The research of Boussinesq entitled ‘Essay on the theory of flowing water’ is certainly one of his key works. It was decided to publish it not as a book but rather as a contribution to the Mémoires de l’Académie de sciences, the French top journal of the 19th century. To be accepted in it, a Report of the president of the Mechanics Section of the Academy had to generate a positive evaluation. Given that Saint-Venant was its president, and ...Working Paper -
Follow the Leader: Technical and Inspirational Leadership in Open Source Software
(2022)Center for Law & Economics Working Paper SeriesWorking Paper -
Decision-Making under Information Asymmetry: How do Misinformation and Uncertainty Affect Tertiary Education Choices?
(2022)CES Working PapersConsidering that tertiary education has become increasingly popular among young adults worldwide, this study analyses their choices between two different types of tertiary education. We focus on the unique case of Swiss vocational education and training (VET) graduates, who can choose between university education or professional education and training (PET) for tertiary education. However, such diversified educations systems are difficult ...Working Paper -
Proposal of a single arm optical birefringence interferometer for detection of gravitational waves
(2022)I conjecture that gravitational waves induce variations in the optical dielectric permittivity and the magnetic permeability tensors of vacuum. The metric of space remains unchanged. Based on this conjecture the functioning of the Michelson interferometric gravitational wave detector is explained without assuming any stretching and shrinking of the interferometer arms in the rhythm of the gravitational wave. A single-arm optical ...Working Paper