نتایج جستجو برای: reflection properties
تعداد نتایج: 924759 فیلتر نتایج به سال:
ing the full potential linearized augmented plan wave in framework density functional theory(DFT) with wien2k code. The band structure and energy gap of the bulk structures are calculated with GGA-PBE, GGA+U and GGA+MBJ approximations, and results obtained from the MBJ function are more consistent with the reported experimental results. The optical properties such as real and imaginary parts...
The vertical variation of cloud microphysical properties (e.g., droplet size distribution, total number concentration, phase, habit) complicates the interpretation of multi-spectral cloud reflection and emission as measured by passive radiometers in space. Solar reflection-based retrievals of cloud optical properties from sensors such as the Geostationary Operational Environmental Satellite (GO...
We have studied the effect of increasing porosity and its microstructure surface variation on the optical and dielectric properties of porous silicon. It seems that porosity, as the surface roughness within the range of a few microns, shows quantum effect in the absorption and reflection process of porous silicon. Optical constants of porous silicon at normal incidence of light with wavelengt...
1 Manuscript received ????, ????? Revised version received ??????? Ling Li is with the Department of Computing at Curtin University of Technology, Australia. Carmen So-ling Ng is with the School of Computer Engineering, at Nanyang Technological University, Singapore. Contact: [email protected] Abstract: A key element to creating realistic images is the appearance of surfaces. In order to overc...
To any complex reflection group W ⊂ GL(V ), one may attach a braid group B(W ), defined as the fundamental group of the space of regular orbits for the action of W on V [Broué et al. 98]. The “ordinary” braid group on n strings, introduced by [Artin 47], corresponds to the case of the symmetric group Sn, in its monomial reflection representation in GLn(C). More generally, any Coxeter group can ...
In this paper the reflection and transmission at a plane interface between two different couple stress generalized thermoelastic solid half spaces in context of Loard-Shulman(LS)[1967] and Green-Lindsay(GL)[1972] theories in welded contact has been investigated. Amplitude ratios of various reflected and transmitted waves are obtained due to incidence of a set of coupled longitudinal waves and c...
Porous silicon (PS) layers come into existance as a result of electrochemical anodization on silicon. Although a great deal of research has been done on the formation and optical properties of this material, the exact mechanism involved is not well-understood yet. In this article, first, the optical properties of silicon and porous silicon are described. Then, previous research and the prop...
The three electromagnetic properties appearing in Maxwell’s equations are dielectric permittivity, electrical conductivity and magnetic permeability. The study of point diffractors in a homogeneous, isotropic, linear medium suggests the use of logarithms to describe the variations of electromagnetic properties in the earth. A small anomaly in electrical properties (permittivity and conductivity...
The present study is an attempt to discover the relationships among reflection, role stressors and resilience. To this end, a mixed-method approach was adopted. In the quantitative phase, 122 EFL teachers completed three questionnaires namely English Language Teaching Reflection Inventory, Teacher Role Stressors Scale and Connor-Davidson Resilience Scale. The results of correlation indicated th...
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