نتایج جستجو برای: light processing

تعداد نتایج: 878407  

پایان نامه :وزارت بهداشت، درمان و آموزش پزشکی - دانشگاه علوم پزشکی و خدمات بهداشتی درمانی مشهد - دانشکده دندانپزشکی 1392

مقدمه و هدف : یکی از مهمترین مراحل در ساخت یک پروتز با تطابق غیرفعال قالب گیری می باشد. هدف از انجام مطالعه حاضر بررسی دقت قالب گیری توسط ویسکوزیته های مختلف ماده پلی وینیل سایلوکسان (pvs) با استفاده از دو روش مستقیم و غیر مستقیم می باشد. مواد و روش ها : در این مطالعه 4 عدد فیکسچر از سیستم تجاری dio به صورت کاملا موازی بر روی یک مدل مرجع از فک پایین تعبیه شد. سپس با استفاده از سه ویسکوزیته...

2012
Anton Delwig Anne M. Logan David R. Copenhagen Andrew H. Ahn

Melanopsin-expressing intrinsically photosensitive retinal ganglion cells (ipRGCs) are the only functional photoreceptive cells in the eye of newborn mice. Through postnatal day 9, in the absence of functional rods and cones, these ipRGCs mediate a robust avoidance behavior to a light source, termed negative phototaxis. To determine whether this behavior is associated with an aversive experienc...

2009
Anthony Accardi Gregory Wornell

Imaging technologies such as dynamic viewpoint generation are engineered for incoherent radiation using the traditional light field, and for coherent radiation using electromagnetic field theory. We present a model of coherent image formation that strikes a balance between the utility of the light field and the comprehensive predictive power of Maxwell’s equations. We synthesize research in opt...

Journal: :Journal of the Optical Society of America. A, Optics, image science, and vision 2009
Anthony Accardi Gregory Wornell

Imaging technologies such as dynamic viewpoint generation are engineered for incoherent radiation using the traditional light field, and for coherent radiation using electromagnetic field theory. We present a model of coherent image formation that strikes a balance between the utility of the light field and the comprehensive predictive power of Maxwell's equations. We synthesize research in opt...

2005
Jelena Vuckovic Dirk Englund David Fattal Edo Waks Yoshihisa Yamamoto

Photonic crystal cavities can localize light into nanoscale volumes with high quality factors. This permits a strong interaction between light and matter, which is important for the construction of classical light sources with improved properties (e.g., low threshold lasers) and of nonclassical light sources (such as single and entangled photon sources) that are crucial pieces of hardware of qu...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه الزهراء - دانشکده ادبیات، زبانهای خارجی و تاریخ 1387

هدف از این پژوهش مقایسهprocessing instruction باdictogloss و بررسی تاثیر این دو آموزش بر یادگیری افعال مجهول ساده انگلیسی دربین زبان آموزان انگلیسی به عنوان زبان خارجی است. بدین منظور30خانم فارسی زبان درسطح pre-intermediate موسسه کیش در تهران انتخاب شده و در دوگروه processing instruction و dictogloss به تعداد مساوی قرارگرفتند. برای بررسی تاثیر این دو آموزش از سه آزمون مشابه استفاده شد که یکی از...

Journal: :thrita 0
seyed behnamedin jameie medical basic sciences department, faculty of allied medicine, iran university of medical sciences, tehran, ir iran; medical basic sciences department, faculty of allied medicine, iums, tehran, ir iran. tel: +98-2155306576 mahbobeh mousavi anatomy department, faculty of medicine, tehran university of medical sciences, tehran, ir iran mona farhadi department of microbiology, islamic azad university, karaj, ir iran fereshteh mehraein anatomy department, faculty of medicine, iran university of medical sciences, tehran, ir iran shima ababzadeh anatomy department, qom university of medical sciences, qom, ir iran maryam soleimani department of basic sciences, university of social welfare and rehabilitation sciences, tehran, ir iran

results brdu ihc showed a significant decrease in neurogenesis following tld in both sexes showing more severity in male rats than in female rats. results of nissl staining and mwm also confirmed the brdu findings. regarding sexual dimorphism, our data showed no significant sex differences in the dg area of the hippocampus. conclusions sex-dependent reduction in neurogenesis following tld could...

Journal: :Journal of visualized experiments : JoVE 2013
Abud J Farca Luna Alina M H J von Essen Yves F Widmer Simon G Sprecher

Light acts as environmental signal to control animal behavior at various levels. The Drosophila larval nervous system is used as a unique model to answer basic questions on how light information is processed and shared between rapid and circadian behaviors. Drosophila larvae display a stereotypical avoidance behavior when exposed to light. To investigate light dependent behaviors comparably sim...

2012
C. W. Chow C. H. Yeh Y. Liu Y. F. Liu

The realization of enhanced efficiency light emitting diodes (LED) and the trend to lower costs of LED lighting systems will facilitate their wider deployment in many applications. LED lighting system with the value-added functionality of optical wireless communication enables the deployment of a communication system with very little extra cost. Visible light communication (VLC) provides the me...

Journal: :IACR Cryptology ePrint Archive 2015
Thuong T. Dang Tri T. Ton Van H. Dang Thuc D. Nguyen

In the paper about the cryptosystem MST3, Svaba and Trung proposed a way to build a cryptosystem based on the concept of logarithmic signatures, and they choose Suzuki’s group, which is not abelian for implementing. Recently, to reason why these methods cannot be applied to abelian groups; Svaba, Trung and Wolf developed some algorithms to factorize the fused transversal logarithmic signatures ...

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