نتایج جستجو برای: degree of anisotropy
تعداد نتایج: 21171732 فیلتر نتایج به سال:
the seismic anisotropy is a subject of interest for seismologists and geologists. the information of seismic anisotropy has significant role in geology interpretations (savage, 1999). in this study, we have investigated the upper crust anisotropy in bam area by means of shear wave splitting sg phase. we have selected more than three hundred aftershocks from iiees local temporary seismic network...
Despite strong anisotropy seen in analysis of seismic data from the NoMelt experiment in 70 Ma Pacific seafloor, a previous analysis of coincident magnetotelluric (MT) data showed no evidence for anisotropy in the electrical conductivity structure of either lithosphere or asthenosphere. We revisit the MT data and use 1D anisotropic models of the lithosphere to demonstrate the limits of acceptab...
If aspherical dust grains are immersed in an anisotropic radiation field, their temperature depends on the cross-sections projected in the direction of the anisotropy. It was shown that the temperature difference produces polarized thermal emission even without alignment, if the observer looks at the grains from a direction different from the anisotropic radiation. When the dust grains are alig...
Indices of diffusion anisotropy calculated from diffusion coefficients acquired in two or three perpendicular directions are rotationally variant. In living monkey brain, these indices severely underestimate the degree of diffusion anisotropy. New indices calculated from the entire diffusion tensor are rotationally invariant (RI). They show that anisotropy is highly variable in different white ...
تأثیر ناهمسانی مکانیکی و ناهمگونی پارامترهای مقاومت برشی خاکها بر ظرفیت باربری دراز مدت پیهای سطحی
Natural formation of soil deposits causes heterogeneity and anisotropy in their strength and stiffness properties. However, most soils in their natural states exhibit some anisotropy with respect to shear strength and heterogeneity with respect to the depth. In this paper, the standard Mohr- Coulomb constitutive law is generalized to anisotropic version in order to consider the effect of cohesi...
gol-e-gohar iron ore mine of sirjan in southern part of iran is a large open pit that operates below the groundwater table and during mining operation, dewatering is required to prevent operation processes from flooding. current operation is going on by digging wells in or out of the pit and pumping to prevent flooding. as a result of the former dewatering operation a vast deep cone of depressi...
Large strains, anisotropy of mechanical properties of materials and Coulomb friction in contact regions are some properties in the analysis of deep drawing process. In this research, the effects of different parameters such as anisotropy coefficient, work hardening exponent and friction coefficient on deep drawing process of drawing quality steel are studied. For this purpose, the finite elemen...
A 79 year old female presents for evaluation of multiple episodes of witnessed syncope. Invasive electrophysiologic evaluation revealed evidence of both intrahissian Wenckebach and anisotropy. This is the first report documenting both phenomena in the same patient. The patient underwent a dual-chamber pacemaker implantation without complication.
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