نتایج جستجو برای: non linear optic
تعداد نتایج: 1742149 فیلتر نتایج به سال:
Background and purpose: Optic neuritis is one of the common causes of unilateral or bilateral visual loss. The most common cause of this disorder is demyelinating disease of the central nervous system (CNS) and most of the patients with optic neuritis will present other signs of multiple sclerosis (MS). The diagnosis depends on the clinical findings, however, magnetic resonance imaging (MRI) is...
for a finite group G, we denote by p(G) the minimal degree of faithful permutation representations of G, and denote by c(G), the minimal degree of faithful representation of G by quasi-permutation matrices over the complex field C. In this paper we will assume that, G is a p-group of exponent p and class 2, where p is prime and cd(G) = {1, |G : Z(G)|^1/2}. Then we will s...
A technique for accurate measurement of the principle refractive indices and birefringence for silklike samples is presented. It is based on rotating the linear polarization of the illuminating light on a silk immersed in reference liquid to achieve index matching at the silk/liquid interface. The technique was used to measure the principal refractive indices of a P. eburnus radial silk at diff...
Abstract: Backgraound: Optic nerve sheath diameter measurement is a non-invasive method that provides rapid results in intracranial pressure assessment. Our aim this study to investigate how spinal anesthesia and tourniquet use affect optic values total knee arthroplasty operations. Methods:30 cases were included the study. After anesthesia, cuff was inflated. Right left measurements performed ...
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