نتایج جستجو برای: plasma theory
تعداد نتایج: 1129934 فیلتر نتایج به سال:
Relativistic magnetohydrodynamics (RMHD) provides an extremely useful description of the low-energy long-wavelength phenomena in a variety physical systems from quark-gluon plasma heavy-ion collisions to matters supernovas, compact stars, and early universe. We review recent theoretical progresses RMHD, such as formulation RMHD perspective magnetic flux conservation using entropy-current analys...
The physics of the unstable E-region plasma is based on the modified two stream, or Farley-Buneman, and the gradient drift instabilities. The theory combines both mechanisms into a single dispersion relation which applies for the directly generated short-scale plasma waves, known as type 1 irregularities. In the absence of a plasma gradient it is only the two stream mechanism acting which favor...
The authors develop a theory of photodetection in double-gated bilayer graphene (BLG) field-effect transistor (FET), following the Dyakonov-Shur scheme based on nonlinear mixing plasma waves. A BLG channel displays peculiar effect: band gap depends intensity wave, which makes photoresponse dependent FET electrostatics. work here bridges microscopic features electronic dispersion two-dimensional...
Successive stages of direct laser acceleration driven by two pulses in an applied magnetic field enable volumetric generation bulk-relativistic, persistently hot plasma at gas-jet-accessible and optically diagnosable density. Theory kinetic simulations demonstrate robustness to experimentally relevant parameters indicate that this approach is capable accessing a relativistically thermal regime ...
Josephson plasma frequency is computed within the interlayer tunneling theory and compared against the experimental results in Tl2Ba2CuOy and La2−xSrxCuO4. It is shown that the theoretical estimates are fully consistent with the recent experiments. Typeset using REVTEX 1 In the Josephson effect [1], the quantum mechanical phases of two superconductors are coupled by the tunneling of the Cooper ...
the present paper investigates how far ideologies can be tease out in discourse by examining the employed schemata by two ideologically opposed news media, the bbc and press tv, to report syria crisis during a period of nine months in 2011. by assuming that news is not a valuefree construction of facts and drawing on micro structural approach of schema theory, for the first time in discours...
tennessee williams (1911-1983), the modern american dramatist, had his own unique school of dramaturgy. the dramas which he depicted are populated by characters who are lonely, desperate, in anxiety, alienated and in one word lost. they face challenges which they may overcome or not, through the choices they make. all these moods and conditions are clearly seen and explained in the theory of ex...
let h be a separable hilbert space and let b be the set of bessel sequences in h. by using several interesting results in operator theory we study some topological properties of frames and riesz bases by constructing a banach space structure on b. the convergence of a sequence of elements in b is de_ned and we determine whether important properties of the sequence is preserved under the con...
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