Results 31 to 40 of about 2,119,792 (195)

Structural Integrity Analysis of Nozzleless Booster Propellant Grain in the Process of Curing and Cooling [PDF]

open access: yesHangkong bingqi
In order to accurately evaluate the structural integrity level of the solid rocket ramjet nozzleless booster propellant grain during curing and cooling, the structural integrity of the nozzleless booster propellant grain of a solid rocket ramjet engine ...
Kui Bin, Liu Qiang, Na Xudong, Liu Jue
doaj   +1 more source

Supersymmetric Quantum Mechanics on Non-Commutative Plane [PDF]

open access: yes, 2004
We study the Pauli equation on non-commutative plane. It is shown that the Supersymmetry algebra holds to all orders in the non-commutative parameter $\theta$ in case the gyro-magnetic ratio $g$ is 2. Using Seiberg-Witten map, the first order in $\theta$
Alvarez-Gaume   +34 more
core   +2 more sources

Near⁃Field Sources Localization Based on Non⁃uniform Sparse Bayesian Learning

open access: yesShuju Caiji Yu Chuli
The near-field steering vector contains the angle and range parameters. They are coupled with each other and difficult to separate. Most existing methods adopt the approximate decoupling model to estimate the angle and range parameters step by step ...
LI Yi, FU Haijun, DAI Jisheng
doaj   +1 more source

IMPEDANCE BOUNDARY CONDITION OF NON-UNIFORM ELECTROMAGNETIC FIELD PENETRATION INTO CONDUCTING HALF-SPACE

open access: yesТехнічна електродинаміка, 2022
The influence of the non-uniformity of the external field to its distribution on the surface of the conducting half-space is investigated on the basis of exact analytical and approximate asymptotic calculation methods of an arbitrary three-dimensional ...
Ю.М. Васецький
doaj   +1 more source

Quantum dynamics in sine-square deformed conformal field theory: Quench from uniform to non-uniform CFTs

open access: yes, 2018
In this work, motivated by the sine-square deformation (SSD) for (1+1)-dimensional quantum critical systems, we study the non-equilibrium quantum dynamics of a conformal field theory (CFT) with SSD, which was recently proposed to have continuous energy ...
Wen, Xueda, Wu, Jie-Qiang
core   +1 more source

Research on polarization switching dynamics in barium titanate ferroelectric tunnel junctions

open access: yesGongneng cailiao yu qijian xuebao
To address the high energy consumption and low efficiency caused by the data transfer bottleneck between processors and memory in von Neumann architectures, this study explores a neuromorphic computing solution based on ferroelectric tunnel junctions ...
Zhan-feng ZHANG   +3 more
doaj   +1 more source

Multiscale enhanced non‐uniform transformation field analysis

open access: yesInternational Journal for Numerical Methods in Engineering
AbstractEnhanced transformation field analysis (E‐TFA), recently proposed for reduced‐order modeling, is here formulated for and applied to multiscale analysis. The approach is able to reproduce a highly complex nonlinear macroscale behavior, resulting from a microstructure with cohesive interfaces embedded in an elasto‐plastic bulk.
A. Mishra   +4 more
openaire   +2 more sources

Separation of solid paraffins from heavy oil fractions in an electric field

open access: yesИзвестия высших учебных заведений: Нефть и газ, 2022
The process of separating solid paraffins from heavy oil fractions is one of the most expensive and difficult to implement in oil refining. Dewaxing is usually carried out by the method of low-temperature crystallization of solid paraffins in the ...
A. L. Savchenkov   +4 more
doaj   +1 more source

A Bose-Einstein Condensate in a Uniform Light-induced Vector Potential

open access: yes, 2008
We use a two-photon dressing field to create an effective vector gauge potential for Bose-condensed Rb atoms in the F=1 hyperfine ground state. The dressed states in this Raman field are spin and momentum superpositions, and we adiabatically load the ...
Compton, R. L.   +5 more
core   +1 more source

Surface flashover of oil-immersed dielectric materials in uniform and non-uniform fields [PDF]

open access: yes, 2009
The applied electrical fields required to initiate surface flashover of different types of dielectric material immersed in insulating oil have been investigated, by applying impulses of increasing peak voltage until surface flashover occurred.
Given, M.J.   +6 more
core   +1 more source

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