نتایج جستجو برای: left handed materials
تعداد نتایج: 726760 فیلتر نتایج به سال:
We investigate the possibility of preparing left-handed materials in metallic magnetic granular composites. Based on the effective medium approximation, we show that by incorporating metallic magnetic nanoparticles into an appropriate insulating matrix and controlling the directions of magnetization of metallic magnetic components and their volume fraction, it may be possible to prepare a compo...
UNLABELLED BACKGROUND Radiosensitivity is an inheriting trait that mainly depends on genetic factors. it is well known in similar dose of ionizing radiation and identical biological characteristics 9-10 percent of normal population have higher radiation response. Some reports indicate that distribution of breast cancer, immune diseases including autoimmune diseases as example lupus, Myasthen...
School education plays an essential role in the formation and development of child's personality, due to this fact it is necessary that educational process be adapted requirements all children, whether they are normal or with special requirements, right-handed left-handed. Due predominance right cerebral hemisphere these children information differently. However, entire school curriculum design...
purpose: to determine the correlation between hand dominancy and eye dominancy with visual acuity and refraction in subjects with refractive errors. methods: this cross-sectional study includes 620 patients undergoing lasik. their refractive error (dry and cycloplegic), hand dominancy, eye dominancy (by hole-in-the-hand method) and visual acuity were determined. exclusion criteria were monocula...
The high optical and chemical activity of nanoparticles (NPs) signifies the possibility of converting the spin angular momenta of photons into structural changes in matter. Here, we demonstrate that illumination of dispersions of racemic CdTe NPs with right- (left-)handed circularly polarized light (CPL) induces the formation of right- (left-)handed twisted nanoribbons with an enantiomeric exce...
In this present article, we studied the transmission, refraction and focusing properties of one, two and three dimensional labyrinth based left-handed metamaterials. We demonstrated that the proper periodic arrangement of labyrinth structures and wires results in left-handed transmission. By using a two dimensional labyrinth based left-handed slab, it is shown that it is possible to image the f...
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