نتایج جستجو برای: area matrix

تعداد نتایج: 934445  

2006
Raphael Bousso Aleksey L. Mints

As a quantum theory of gravity, Matrix theory should provide a realization of the holographic principle, in the sense that a holographic theory should contain one binary degree of freedom per Planck area. We present evidence that Bekenstein’s entropy bound, which is related to area differences, is manifest in the plane wave matrix model. If holography is implemented in this way, we predict cros...

Ahmadi, Zohreh, Aligol, Mohammad, Asgarian, Azadeh, Mohammadbeigi, Abolfazl, Rahmani, Abdollah ,

Background and Objectives: The duty of every healthcare system worldwide, is to address needs and problems associated with community health. The current study was performed aiming at identifying and prioritizing the most important needs of Jamkaran village in Qom province and providing applied and useful interventional suggestions in order to solve the problems of the village.   Methods: In a ...

Journal: :محیط زیست طبیعی 0
سید علی جوزی استادیار دانشکده فنی و مهندسی، دانشگاه آزاد اسلامی واحد تهران شمال، ایران سحر رضایان عضو هیئت علمی دانشگاه آزاد اسلامی واحد شاهرود، ایران مهدی ایرانخواهی کارشناس ارشد دانشکده محیط زیست و انرژی، دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران، ایران

a study with travel cost method (tcm) was performed to evaluate ecotourism demand of lake belonging to karoon 3 dam. for this purpose, 220 clawson questionnaires at highest demand time (february to may 2008) were completed. results of this investigation showed that forecasting outdoor recreational value of karoon 3 dam limits is equal to 2,879,550,000 rials at month, during study. in order to p...

Journal: :Science intensive technologies in mechanical engineering 2021

There is considered square billet stretching in a cylindrical matrix. To ensure minimization of an inequality effect ends the matrix there was used leading-in profile area. The investigation impact upon geometry products manufactured carried out. efficient geometrical ratios tool allowing achievement lesser parts end area are revealed.

Journal: :IACR Cryptology ePrint Archive 2017
Sumanta Sarkar Habeeb Syed Rajat Sadhukhan Debdeep Mukhopadhyay

Serial matrices are a preferred choice for building diffusion layers of lightweight block ciphers as one just needs to implement the last row of such a matrix. In this work we analyze a new class of serial matrices which are the lightest possible 4 × 4 serial matrix that can be used to build diffusion layers. With this new matrix we show that block ciphers like LED can be implemented with a red...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یزد - دانشکده جغرافیا 1392

the west of esfahan province, iran, is one of the most important agricultural areas throughout the country due to the climate variability and life-giving water of zayanderood river. rice is one of the major and economic crops in this area. the most important climatic elements in agricultural activities which should be considered include temperature, relative humidity, precipitation and wind. so...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده علوم 1376

saluk mount is selected for devonian biostratigraphy. this area located at southwest of bojnurd. in this study three sections are selected and two sections, chahar-borj and tabar sections with a thickness of 650 m, which consist mainly of calcareous sediments was studied in detailed but third section, qelli section, with a thickness of about 450m which consist mainly of sandstone and evaporates...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد شاهرود - دانشکده علوم پایه 1392

اسانس گیاهان خشک شده در سایه haplophyllum acutifolium، salvia chloroleuca به دو روش1.تقطیر با آب 2. روش میکرواستخراج فاز جامد با نمونه برداری از فضای فوقانی گرفته شد و سپس به روشgc/ms مورد آنالیز و شناسایی قرار گرفت. عمده ترکیبات اسانس گیاه haplophyllum acutifolium: stem oil (%) flower oil (%) leaf oil (%) ri compound with head space area %)) ri compound with hydrodistillation 19.19 17.55 3...

Journal: :bulletin of the iranian mathematical society 2011
m. radjabalipour p. torabian

Journal: :bulletin of the iranian mathematical society 2011
j.-f. li x.-y. hu x.-f. duan l. zhang

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