نتایج جستجو برای: reduced distribution function

تعداد نتایج: 2210162  

Journal: :international journal of nanoscience and nanotechnology(ijnn 0
m. salehian faculty of physics and energy engineering, amirkabir university of technology, tehran, islamic republic of iran a. mohammadian department of physics, tehran central branch, islamic azad university, tehran, islamic republic of iran m. vaezzadeh department of solid state physics, faculty of physics, k. n. toosi university of technology, tehran, islamic republic of iran m. saeidi department of physics, faculty of basic sciences, shahed university, tehran, islamic republic of iran

in this paper, the effect of size on melting temperature of metallic nanoparticles (au, pb and bi) is theoretically simulated and explained. in this regard, the cause of difference in various experimental data is introduced, which is the difference between nanoparticles’ grain gaussian distribution. this volume-depended model with the help of the gaussian distribution can describe the relation ...

Journal: :international journal of communications and information technology 2011
r. abaspour m. mehrjoo s. mohanna m. rezaei

co-channel interference is a major factor in limiting the capacity and link quality in cellular communications. as the co-channel interference is modeled by lognormal distribution, sum of the co-channel interferences of neighboring cells is represented by the sum of lognormal random variables (rvs) which has no closed-form expression. assuming independent, identically distributed (iid) rvs, the...

Journal: :international journal of transportation engineereing 2014
amir reza mamdoohi mahmoud saffarzadeh siavash shojaat

existence of capacity drop phenomenon, as the difference between pre-queue and queue discharge flow rates, has been one of the controversial concepts of traffic engineering. several researches have focused on capacity drop existence and also its estimation issues. this paper aims to estimate capacity drop based not only on a comparison between breakdown and queue discharge flow rates, but also ...

Journal: :iranian journal of science and technology (sciences) 2014
s. m. dehnavi

the square map is one of the functions used in cryptography. for instance, the square map is used in rabin encryption scheme, block cipher rc6 and stream cipher rabbit, in different forms. in this paper, we study statistical properties of the output of the square map as a vectorial boolean function. we obtain the joint probability distribution of arbitrary number of the upper and the lower bits...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه 1377

the methods which are used to analyze microstrip antennas, are divited into three categories: empirical methods, semi-empirical methods and full-wave analysis. empirical and semi-empirical methods are generally based on some fundamental simplifying assumptions about quality of surface current distribution and substrate thickness. thses simplificatioms cause low accuracy in field evaluation. ful...

2008
M. I. Kalinin

In this article it is shown that in an equilibrium classical canonical ensemble of molecules with two-body interaction and external field full Gibbs distribution can be uniquely expressed in terms of a reduced two-particle distribution function. This means that while a number of particles N and a volume V are fixed the reduced two-particle distribution function contains as much information abou...

Ishtiaq Ahmad, Ovais Karnain Wadoo, Sheikh Imran Sayeed,

Objective: Prediabetes is a state that people have blood glucose levels higher than normal but still not in diabetes range. There is a close relationship between impaired lung function and diabetes mellitus (DM). Reduced lung function can be present before the clinical evidence of diabetes or insulin resistance. Materials and Methods: The total number of subjects in this longitudinal study was ...

Journal: :آب و خاک 0
احسان امینی بیژن قهرمان کامران داوری محمد موسوی بایگی

abstract agricultural scientists have developed considerable interest in modeling and generation of rainfall as new ways of analyzing rainfall data and assessing its impact on agriculture. a combination of markov chain and gamma distribution function is recognized as a simple approach and is demonstrated to be effective in generating daily rainfall data for many environments. thus the availabil...

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