نتایج جستجو برای: transmittance optic
تعداد نتایج: 49785 فیلتر نتایج به سال:
Purpose: To report a case of unilateral severe visual loss and bilateral optic disc cupping secondary to brain metastasis of bronchogenic carcinoma Patient and findings: A 48 year-old woman presented with severe visual loss of left eye without redness or pain or any systemic findings .Clinical findings included decreased visual acuity of left eye to 4 m CF and (+3) positive Marcus-Gunn refle...
We present the formulation, calibration and validation of a model to estimate photosynthetically active radiation (PAR) intercepted by olive (Olea europaea L.) canopies. The model calculates the PAR transmittance at any point located within the four central trees of the orchard. The spatial and time integration of this process allows calculation of PAR transmitted to the ground and, thus, the P...
: The usual experimental set-up for measuring the wave function phase shift of electrons tunneling through a quantum dot (QD) embedded in a ring (i.e., the transmittance phase) is the so-called 'open' interferometer as first proposed by Schuster et al. in 1997, in which the electrons back-scattered at source and the drain contacts are absorbed by additional leads in order to exclude multiple in...
Purpose: This work studies possible role of FOS proteins, retinoic acid (RA) and mitogens during optic vesicle development in vitro. Materials and Methods: Fos was detected as a product of 55-62 kDa in optic vesicles via electrophoretic procedures. Incubation (24hr) of optic vesicles with RA 25nM and mitogens(serum10%,insulin2.5%) on the day 9.5 of gestation revealed that Fos was induced by mi...
We present an in-depth analysis of the sources variance in state-of-the-art unbiased volumetric transmittance estimators, and propose several new methods for improving their efficiency. These combine to produce a single estimator that is universally optimal relative prior work, with up orders magnitude lower at same cost, has zero any ray non-varying extinction. first reduce truncated power-ser...
Conductive transparent ZnS/M/ZnS, (M = Au, Ag, Cu, Al) nano-structures have been simulated by optimization layers thickness, and gold, silver, copper, and aluminum materials were used as a metal layer and zinc sulfide for dielectric layers. Then the optimum simulated structure has been fabricated on a glass substrate by thermal evaporation. The crystallinity properties of the structures, such a...
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