Results 21 to 30 of about 23,183 (245)
An orbital energy flow and a spin flow at the tight focus
Компьютерная оптика, 2021 We have shown that a reverse energy flow (negative projection of the Poynting vector onto the optical axis) at the sharp focus of an optical vortex with topological charge 2 and left-hand circular polarization arises because the axial spin flow has a ...
S.S. Stafeev
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Effects of fabrication errors on the focusing performance of a sector metalens [PDF]
Компьютерная оптика, 2018 Using e-beam lithography, a 16-sector spiral metalens was fabricated in an amorphous silicon, capable of converting linearly polarized incident light into an azimuthally polarized optical vortex. When illuminated by a 633-nm linearly polarized laser beam,
Sergey S. Stafeev +3 more
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Journal of Rock Mechanics and Geotechnical Engineering, 2020 This paper presents a three-dimensional fully hydro-mechanical coupled distinct element study on fault reactivation and induced seismicity due to hydraulic fracturing injection and subsequent backflow process, based on the geological data in Horn River ...
Zirui Yin +4 more
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A Simulation Study of Ultra-relativistic Jets. III. Particle Acceleration in FR-II Jets
The Astrophysical Journal, 2023 We study the acceleration of ultra-high-energy cosmic rays (UHECRs) in Class II Fanaroff–Riley (FR-II) radio galaxies by performing Monte Carlo simulations for the transport, scattering, and energy change of CR particles injected into time-evolving jet ...
Jeongbhin Seo, Dongsu Ryu, Hyesung Kang
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Flow field analysis of multi-stage middle-open centrifugal pump inter-stage flow passage [PDF]
E3S Web of Conferences, 2020 In order to study the flow velocity, static pressure and turbulent kinetic energy distribution of the inter-stage flow passage, the numerical calculation of the inter-stage flow passage of the multistage split centrifugal pump was carried out under the ...
Zhang Xiao, Huang He
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Effect of The Screw-Barrel Clearance and The Cooling Fan on Non-Wheat Noodle Extruder Performance [PDF]
BIO Web of Conferences, 2023 This research was related to the development of technology for making non-wheat noodles. The process of making non-wheat noodles requires special treatment because of their different characteristics from wheat noodles.
Hanifah U, Taufan A, Sholichah E
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Hysteresis of Backflow Imprinted in Collimated Jets [PDF]
, 1997 We report two different types of backflow from jets by performing 2D special relativistic hydrodynamical simulations. One is anti-parallel and quasi-straight to the main jet (quasi-straight backflow), and the other is bent path of the backflow (bent ...
A Aeppli +17 more
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Hu Y. S., Wei H. J., Yu B., Yang O. X., Wang J., Wu J. Research on the vapor injection of two-stage rotary compressor / trans. from Engl. M. A. Fedorova [PDF]
Омский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2021 In order to understand the vapor injection flow characteristics of two-stage rotary compressor in the course of compression, a mathematical model based on mass conservation equation, energy equation and thermodynamic identity was established and proved
M. A. Fedorova
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Toroidal Vortices of Energy in Tightly Focused Second-Order Cylindrical Vector Beams
Photonics, 2021 In this paper, we simulate the focusing of a cylindrical vector beam (CVB) of second order, using the Richards–Wolf formula. Many papers have been published on focusing CVB, but they did not report on forming of the toroidal vortices of energy (TVE) near
Sergey S. Stafeev +2 more
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Energy dissipation characteristics of sharp-edged orifice plate
Advances in Mechanical Engineering, 2015 The energy loss coefficient, relating directly to the energy dissipation ratio, is an important index of this energy dissipater. In this article, this coefficient and its affecting parameters were analyzed by theoretical considerations, and their ...
Ai Wanzheng
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