Results 31 to 40 of about 5,514,879 (214)
Journal of Marine Science and Engineering, 2023 This study aimed to reveal the energy loss characteristics of each part of the shaft tubular pump device (STPD) under stall conditions. Numerical simulations were conducted by using the SST k-ω turbulence model with curvature correction, and the ...
Dongtao Ji +4 more
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A Blueprint for Ocean Energy Development 2010-2015 [PDF]
In an effort to foster a collaborative approach to advancing the ocean energy industry, OWET convened the OWET 2010 Developersʼ Summit on September 27 and 28, 2010 in Portland, Oregon.
Oregon Wave Energy Trust
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Energy flux of a vortex field focused using a secant gradient lens
Компьютерная оптика, 2020 In this paper we simulated the focusing of left circular polarized beam with a second order phase vortex and a second-order cylindrical vector beam by a gradient index Mikaelian lens.
A.G. Nalimov
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Energies, 2023 Dual-active bridge (DAB) converters are receiving increasing attention from researchers as a critical part of the power transmission of energy routers. However, the DAB converter generates a large backflow power in conventional control mode, and when the
Xinwen Zhang, Canlong Wang
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Toroidal polarization vortices in tightly focused beams with singularity
Компьютерная оптика, 2020 In this paper, we numerically investigated tight focusing of cylindrical vector beams of the sec-ond order using Richards-Wolf formulae. It was shown that intensity rings where the Poynting vector was equal to zero appeared not only in the focal plane ...
S.S. Stafeev, V.V. Kotlyar
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Recommendations concerning energy information model documentation, public access, and evaluation [PDF]
, 1979 In this study we provide an analysis of the factors underlying Congressional concern regarding model documentation, policies for public access, and evaluation procedures of the Energy Information Administration (EIA) and its predecessor agencies; we also
Wood, D.O. +3 more
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Quantum backflow in the presence of defects [PDF]
, 2021 A physical quantity that is positive in classical physics can become negative in quantum physics, but it may be bounded. Quantum inequalities are lower bounds on averages of these physical quantities.
de Vasconcelos Junior, Alexandre Hefren
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Advanced Electronic Materials, 2023 The lack of theoretical understanding of triboelectrification has hindered the development of energy harvesting technologies like triboelectric nanogenerators.
Giulio Fatti +10 more
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, 2009 The Annual Energy Outlook 2009 (AEO2009), prepared by the Energy Information Administration (EIA), presents long-term projections of energy supply, demand, and prices through 2030, based on results from EIA’s National Energy Modeling System (NEMS).
United States. Energy Information Administration.
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Generation and focusing of a second-order vector beam using a subwavelength optical element
Компьютерная оптика, 2022 This article proposes a new type of subwavelength axicons for creating and focusing second-order vector cylindrical beams. It is also shown that using the proposed subwavelength axicons, it is possible to create focal spots with an energy backflow.
S.A. Degtyarev, D.A. Savelyev
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