Results 11 to 20 of about 503,264 (268)
The power of perturbation theory [PDF]
Journal of High Energy Physics, 2017 We study quantum mechanical systems with a discrete spectrum. We show that the asymptotic series associated to certain paths of steepest-descent (Lefschetz thimbles) are Borel resummable to the full result.
Marco Serone +2 more
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Quarterly Journal of Political Science, 2022 We present a theory of war onset and war duration in which power is multidimensional and can evolve through conflict. The resources players can secure without fighting are determined by their political power, while the ability of appropriating resources with violence is due to their military power.
Herrera, Helios +2 more
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Reconsidering power functional theory [PDF]
The Journal of Chemical Physics, 2021 The original derivation of power functional theory [M. Schmidt and J. M. Brader, J. Chem. Phys. 138, 214101 (2013)] is reworked in some detail with a view to clarifying and simplifying the logic and making explicit the various functional dependencies.
James F. Lutsko, Martin Oettel
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Mathematics, 2021 Traditional electrical power theories and one of their most important concepts—apparent power—are still a source of debate, because they present several flaws that misinterpret the power-transfer and energy-balance phenomena under distorted grid ...
Francisco G. Montoya +4 more
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Mathematics, 2021 This paper presents a new framework based on geometric algebra (GA) to solve and analyse three-phase balanced electrical circuits under sinusoidal and non-sinusoidal conditions. The proposed approach is an exploratory application of the geometric algebra
Francisco G. Montoya +4 more
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Energies, 2023 This article presents the concept of a mathematical description of a three-phase, four-wire asymmetrical electric circuit in decomposition into Voltages’ Physical Components (VPC), associated with distinctive physical phenomena in the load.
Konrad Zajkowski, Stanisław Duer
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Mathematics, 2022 In this paper, power flows in electrical circuits are modelled in a mixed time-frequency domain by using geometric algebra and the Hilbert transform for the first time.
Francisco G. Montoya +4 more
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CPC-based currents’ description in three-phase four-wire systems with asymmetrical and nonsinusoidal waveforms [PDF]
Bulletin of the Polish Academy of Sciences: Technical Sciences, 2020 This article aims to explain the capability of describing three-phase systems powered from the source with asymmetrical nonsinusoidal voltage waveforms.
Z. Sołjan, G. Hołdyński, M. Zajkowski
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Balancing reactive compensation at three-phase four-wire systems with a sinusoidal and asymmetrical voltage source [PDF]
Bulletin of the Polish Academy of Sciences: Technical Sciences, 2020 The article presents the essentials of reactance compensation of unbalanced loads in three-phase four-wire systems powered by a sinusoidal and asymmetrical voltage source.
Z. Sołjan, G. Hołdyński, M. Zajkowski
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Power research in adaptive water governance and beyond: a review
Ecology and Society, 2023 Power dynamics are widely recognized as key contributors to poor outcomes of environmental governance broadly and specifically for adaptive water governance.
Lisa McIlwain +3 more
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