Results 221 to 230 of about 36,908 (247)
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Anisotropy of the selenium diffusion coefficient in bismuth telluride
Journal of Physics and Chemistry of Solids, 2000Abstract We present results for the anisotropic diffusion coefficient of selenium, isoelectronic impurity, in Bi 2 Te 3 along the solidus. The single crystals were prepared by travelling heater method and they have a high crystalline quality. The experimental conditions permitted us to obtain a definite stoichiometric deviation, and diffusion ...
M Chitroub, S Scherrer, H Scherrer
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Temperature Dependence of Ferromagnetic Uniaxial Anisotropy Coefficients
Journal of Applied Physics, 1962The problem of a spin one Weiss molecular field Hamiltonian with uniaxial anisotropy is solved exactly. The free energy contains magnetocrystalline anisotropy terms of all even order Legendre polynomials. The P2 coefficient varies as the third power of the magnetization rather well even for fairly large anisotropy, and over the entire temperature range.
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ChemPhysChem, 2009
AbstractAnisotropy counts: A brief review of the main physical properties of elongated magnetic particles (EMPs) is presented. The most important characteristic of an EMP is the additional contribution of shape anisotropy to the total anisotropy energy of the particle, when compared to spherical magnetic particles.
Fernando, Vereda +2 more
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AbstractAnisotropy counts: A brief review of the main physical properties of elongated magnetic particles (EMPs) is presented. The most important characteristic of an EMP is the additional contribution of shape anisotropy to the total anisotropy energy of the particle, when compared to spherical magnetic particles.
Fernando, Vereda +2 more
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Anisotropy of the seebeck coefficients of bismuth telluride
Advanced Energy Conversion, 1961Abstract Anisotropy in the Seebeck effect is found to arise in two separate theoretical situations. It will arise in a single-carrier system when there are two competing scattering mechanisms. One of these (lattice scattering, for example) must be isotropic.
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Regional and directional anisotropy of apparent diffusion coefficient in rat brain
NMR in Biomedicine, 1999Quantitative diffusion maps were recorded in normal rat brain. In multi-slice sections covering the whole brain, strong variation of the apparent diffusion coefficient (ADC) was observed depending on slice position at constant gradient direction. Furthermore, a varying difference between apparent diffusion coefficients depending on gradient direction ...
M, Hoehn-Berlage, M, Eis, B, Schmitz
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Fuel, 2019
Abstract The assessment of process phenomena resulting from the hydrodynamics of gas flow through various kinds of coal chars may refer to a vast number of technological aspects pertaining to qualitative features of those materials. Those issues are subject to the assessment of the post-reaction gas movement in the conditions of the thermal ...
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Abstract The assessment of process phenomena resulting from the hydrodynamics of gas flow through various kinds of coal chars may refer to a vast number of technological aspects pertaining to qualitative features of those materials. Those issues are subject to the assessment of the post-reaction gas movement in the conditions of the thermal ...
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The Study of Influence Factors of the Transmission Coefficient Anisotropy
Proceedings, 2014In anisotropic media, the P-wave reflection coefficient varies with the incidence and azimuth phase angles. The azimuthal anisotropy of horizontal transverse isotropy (HTI) media is used to detect fractures in the reservoir. In this paper, we introduce the reflection and transmission coefficient at interfaces between two weakly anisotropic HTI media ...
P.D. Shi +5 more
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Anisotropy of Sound Speed and Absorption Coefficient of FRP Plate
Japanese Journal of Applied Physics, 1990The variation of sound speed and absorption coefficient are very important parameters in selecting materials for sonar domes. This paper describes the results of measurement on these two factors in a FRP plate composed of resin and layers of polythylene cloth, and it is shown that they increase according to the increase of the refraction angle ...
Toshiyuki Nakanishi +3 more
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Relationships among the harmonic coefficients of scan plane anisotropies
Journal of Geophysical Research: Space Physics, 1985Frequently, a detector on a spinning spacecraft measures the flux of charged particles whose velocities lie in a plane containing the magnetic field. This flux may be Fourier analyzed as a function of the spacecraft roll angle. Relationships among the Fourier coefficients are derived using the adiabatic solution of the Vlasov equation.
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Physica Status Solidi (a), 1978
The dependence of the growth rate v on the misorientation α of the growing face toward a singular orientation {110} is investigated experimentally for the case of dislocation free growth. Measurements of v(α) are accomplished at LPE garnet films on the base of an interference technique. Slightly parabolically shaped substrate surfaces are used covering
R. Hergt, P. Görnert
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The dependence of the growth rate v on the misorientation α of the growing face toward a singular orientation {110} is investigated experimentally for the case of dislocation free growth. Measurements of v(α) are accomplished at LPE garnet films on the base of an interference technique. Slightly parabolically shaped substrate surfaces are used covering
R. Hergt, P. Görnert
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