نتایج جستجو برای: coupling coefficient

تعداد نتایج: 317575  

2009
S.S.L. Peppin J. S. Wettlaufer

The diffusive motion of foreign particles dispersed in a premelting solid is analyzed within the framework of irreversible thermodynamics. We determine the mass diffusion coefficient, thermal diffusion coefficient and Soret coefficient of the particles in the dilute limit, and find good agreement with experimental data. In contrast to liquid suspensions, the unique nature of premelting solids a...

2007
N. P. Hoffmann

In the present work the influence of a LuGre type friction law [cf. to C. Canudas de Wit, H. Olsson, K.J. Aström, P. Lischinsky, A new model for control of systems with friction, IEEE Transactions on Automatic Control 40 (1995) 419] on the fundamental mechanisms resulting in linear instability of steady sliding in point contacts is investigated. Both a velocity-dependent kinetic friction coeffi...

2015
Siavash Golkar

We show using diagramtic arguments that in some (but not all) cases, the temperature dependent part of the chiral vortical effect coefficient is independent of the coupling constant. An interpretation of this result in terms of quantization in the effective 3 dimensional Chern-Simons theory is also given. In the language of 3D, dimensionally reduced theory, the value of the chiral vortical coef...

2006
A. Vuorinen

We use perturbation theory to compute the diffusion coefficient of a heavy quark or scalar moving in N = 4 SU(Nc) Super Yang-Mills plasma to leading order in the coupling and the ratio T/M ≪ 1. The result is compared both to recent strong coupling calculations in the same theory and to the corresponding weak coupling result in QCD. This way, we obtain an estimate for the heavy quark diffusion c...

Journal: :Journal of the Korea Society of Computer and Information 2010

Journal: :Optics letters 2000
M Cai K Vahala

We report that greater than 99.8% optical power transfer to whispering-gallery modes was achieved in fused-silica microspheres by use of a dual-tapered-fiber coupling method. The intrinsic cavity loss and the taper-to-sphere coupling coefficient are inferred from the experimental data. It is shown that the low intrinsic cavity loss and the symmetrical dual-coupling structure are crucial for obt...

Journal: :transport phenomena in nano and micro scales 2015
f. vahidinia m. rahmdel

in this paper, turbulent mixed convective heat transfer of water and al2o3 nanofluid has been numerically studied in a horizontal tube under non-uniform heat flux on the upper wall and insulation in the lower wall using mixture model. for the discretization of governing equations, the second-order upstream difference scheme and finite volume method were used. the coupling of pressure and veloci...

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