نتایج جستجو برای: power normal

تعداد نتایج: 1030658  

2014
M. S. Suresh Saif Mohamed H. Sathyanarayana

Power system planning and operation in present day are more in favour of economic factors and less in terms of technical aspects such as: system security, reliability and stability analysis. Case in point being: the generator scheduling or the pattern in load sharing among the various generators forms a major part in power system planning. Scheduling primarily based on economic criteria, essent...

Journal: :caspian journal of pediatrics 0
hadi sorkhi non-communicable pediatric diseases research center mahmood hajiahmadi department of social medicines and health mehdi pouramir cellular and molecular biology research center, health research institute mohsen akhavan pediatrics medicine research center malihe chooghadi non-communicable pediatric diseases research center, babol university of medical sciences, babol, ir iran. sahar sadr moharerpour non-communicable pediatric diseases research center

background: due to difficulty of obtaining a 24h urine (especially in children), a random urine calcium sample is recommended to detect of hypercalciuria. however, recent studies have shown that the urinary calcium/creatinine ratio varies with age and geographic areas. so, the aim of this study was determining the normal value of urinary calcium to creatinine ratio in healthy adolescent’s child...

Journal: :journal of mahani mathematical research center 0
ayyub sheikhi department of statistics, faculty of mathematics and computer, shahid bahonar university of kerman, kerman, iran.

let x1;x2;...;xn have a jointly multivariate exchangeable normal distribution. in this work we investigate another proof of the independence of x and s2 using order statistics. we also assume that (xi ; yi); i =1; 2;...; n; jointly distributed in bivariate normal and establish the independence of the mean and the variance of concomitants of order statistics.

Journal: :Nature 2021

Andrew Robinson reviews five of the week’s best science picks.

This paper addresses the problem of testing simple hypotheses about the mean of a bivariate normal distribution with identity covariance matrix against restricted alternatives. The LRTs and their power functions for such types of hypotheses are derived. Furthermore, through some elementary calculus, it is shown that the power function of the LRT satisfies certain monotonicity and symmetry p...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیخ بهایی - دانشکده زبانهای خارجی 1391

phatic communion is a cultural concept which differs across cultures. according to hofstede (2001), the u.s. tends to have individualistic culture; however, asian countries tend to have collectivistic cultures. these cultures view phatic communion differently. in individualistic cultures like u.s., phatic communion reflects speakers’ socio-cultural relationships in conversations. to see whether...

Journal: :Annali di Matematica Pura ed Applicata (1923 -) 2014

Journal: :Journal of Biomechanics 2021

Cardiac mechanics is primarily described by the pressure-volume relationship. The ventricular loop displays instantaneous relationship between intraventricular pressure and volume throughout cardiac cycle; however, it does not consider shape of ventricles, their spatiotemporal deformation patterns, how these balance with flowing blood. Our study demonstrates that represents a first level approx...

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