نتایج جستجو برای: as different points
تعداد نتایج: 6521366 فیلتر نتایج به سال:
We propose a method for calculating the so-called multi-wavelength diffractive lenses (MWDLs) intended separating and focusing radiation of L given wavelengths to points located in certain plane perpendicular optical axis. The is based on minimizing objective function characterizing deviation complex transmission functions MWDL from design points. In method, calculation reduced set independent ...
flow in natural river bends is a complex and turbulent phenomenon which affects the scour and sedimentations and causes an irregular bed topography on the bed. for the reason, the flow hydralics and the parameters which affect the flow to be studied and understand. in this study the effect of bed and wall roughness using the software fluent discussed in a sharp 90-degree flume bend with 40.3cm ...
short story as an important literary genre in the recent decade is focused by many of young writers and literary critical with searching structure, content , artistic techniques and cognitive phenomenon of these works , we can show quantity of using some parts of storied literature from new literal techniques of the word and also we can show the usage of native, cultural and social foundation...
any change in the refractive index of a laser active medium can lead to serious degradation of beam quality, laser beam modes, laser performance and variation in the intensity distribution. alteration in the refractive index of laser active medium is especially notable in high power lasers. it is clear that in the laser beam production, the pumping agent induces a great amount of heat which...
the question of who is and who is not a bilingual is more difficult to answer than it first appears. bilingualism was long regarded as the equal mastery of two languages, a definition that still prevails in certain glossaries of linguistics. however, today's complex world requires a more exact definition and analysis of the competencies that community members require to interact with speakers o...
This paper presents the effects of instrument transformers connection points on the measured impedance by distance relays in the presence of Flexible Alternating Current Transmission System (FACTS) devices with series connected branch. Distance relay tripping characteristic itself depends on the power system structural conditions, pre-fault operational conditions, and especially the ground ...
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