نتایج جستجو برای: anisotropy evolution

تعداد نتایج: 374147  

2017
Rimma Bubnova Sergey Volkov Barbara Albert Stanislav Filatov

In the present study the thermal structure evolution is reviewed for known nonlinear optical borates such as β-BaB2O4, LiB3O5, CsLiB6O10, Li2B4O7, K2Al2B2O7, and α-BiB3O6, based on single-crystal and powder X-ray diffraction data collected over wide temperature ranges. Temperature-dependent measurements of further borates are presented for the first time: α-BaB2O4 (295–673 K), β-BaB2O4 (98–693 ...

2003
L. A. Popa N. Mandolesi

We present the CMB anisotropy induced by the non-linear perturbations in the massive neutrino density associated to the non-linear gravitational clustering. We show that the non-linear time varying potential induced by the gravitational clustering process generates metric perturbations that affect the time evolution of the density fluctuations in all the components of the expanding Universe, le...

Naturally formation of soil deposits leads to anisotropy and heterogeneity in their properties. The aim of this study is modeling of soil having anisotropic and heterogeneous strength using finite difference method to estimate the effect of these on slope stability in undrained condition. In this study the soil cohesion is considered as an anisotropic and heterogeneous variable and assumed to h...

Journal: :Energies 2021

Degradation of electrode microstructure is one the key factors affecting long term performance Solid Oxide Fuel Cell systems. Evolution a multiphase system can be described quantitatively by change in its interfacial energy. In this paper, we discuss free energy to showcase anisotropy evolution during long-term experiment involving an SOFC stack. Ginzburg Landau type functional used compute ene...

Journal: :فیزیک زمین و فضا 0
مروارید ساکی دانش آموخته زلزله شناسی، پژوهشگاه بین المللی زلزله شناسی و مهندسی زلزله، تهران، ایران غلام جوان دولویی استادیار، پژوهشگاه بین المللی زلزله شناسی و مهندسی زلزله، تهران، ایران احمد سدیدخوی استادیار، گروه فیزیک زمین، مؤسسة ژئوفیزیک دانشگاه تهران، ایران

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...

Journal: :Journal of Geotechnical and Geoenvironmental Engineering 2021

AbstractUnderstanding the evolution of dynamic properties sand subjected to induced anisotropy is indispensable for an accurate seismic analysis geostructures. In this study, several bender e...

AKBAR ZADEH A., , SALARI M., ,

AA3004 alloy is widely used in can making. The major concern in the production of canbodies is earing, which develop by high planar anisotropy of rolled sheet. Balance ofrecrystallisation and rolling textures together with a uniform and fine grain microstructure canminimize the earing. The effects of finish rolling temperature (FRT) on planar anisotropy,microstructure, texture development and m...

2006
Yaoyu Pang Rui Huang

A stressed epitaxial film can undergo surface instability. The stress field and the interface interaction have profound effects on the dynamics of surface evolution that leads to selfassembled quantum dots. In this paper, by using a nonlinear evolution equation, we investigate pattern evolution of self-assembled quantum dots under general biaxial stresses. It is found that the shape of quantum ...

2009
Bin Zhang B. Zhang

Kinetic equilibration during the early stage of a relativistic heavy ion collision is studied using a radiative transport model. Thermalization is found to dominate over expansion with medium regulated cross sections. Pressure anisotropy shows an approximate αs scaling when radiative processes are included. It approaches an asymptotic time evolution on a time scale of 1 to 2 fm/c. Energy densit...

2009
Bo Li John Lowengrub Andreas Rätz Axel Voigt

Geometrical evolution laws are widely used in continuum modeling of surface and interface motion in materials science. In this article, we first give a brief review of various kinds of geometrical evolution laws and their variational derivations, with an emphasis on strong anisotropy. We then survey some of the finite element based numerical methods for simulating the motion of interfaces focus...

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