نتایج جستجو برای: density distribution

تعداد نتایج: 974041  

Journal: :Pathophysiology of haemostasis and thrombosis 2010
Micha Milovanovic Kourosh Lotfi Tomas Lindahl Claes Hallert Petter Järemo

Essential thrombocythemia (ET) is characterized by high platelet counts and a slightly increased bleeding risk. Why severe hemorrhage does not occur more frequently is not known. Variations of platelet density (kg/l) depend mainly on cell organelle content in that high-density platelets contain more α and dense granules. This study compares ET patients (n = 2) and healthy volunteers (n = 2) wit...

Journal: :journal of paramedical sciences 0
batoul ahadi department of biostatistics, para-medical faculty, shahid beheshti university of medical sciences, tehran, iran hamid alavi majd department of biostatistics, para-medical faculty, shahid beheshti university of medical sciences, tehran, iran soheila khodakarim department of epidemiology,health faculty, shahid beheshti university of medical sciences, tehran, iran forough rahimi department of english language, paramedical faculty, shahid beheshti university of medical sciences, tehran, iran nourossadat kariman department of midwifery, school of nursing and midwifery, shahid beheshti university of medical sciences, tehran, iran. mahieh khalili department of biostatistics, para-medical faculty, shahid beheshti university of medical sciences, tehran, iran

various statistical methods have been proposed in terms of predicting the outcomes of facing special factors. in the classical approaches,  making the probability distribution or known probability density functions is ordinarily necessary to predict the desired outcome. however, most of the times enough information about the probability distribution of studied variables is not available to the ...

Journal: :journal of sciences, islamic republic of iran 2015
z. javanshiri a. habibi rad n.r. arghami

in this paper, we propose and study exp-kumaraswamy distribution. some of its properties  are derived, including the density function, hazard rate function, quantile function, moments,  skewness  and kurtosis.   adata set isused to illustrate an application of the proposed distribution. also, we obtain a new distribution by transformation onexp-kumaraswamy distribution.   new distribution is an...

Journal: :مرتع و آبخیزداری 0
مجید آجورلو استادیار گروه مرتع و آبخیزداری، دانشکدة منابع طبیعی، دانشگاه زابل محبوبه ابراهیمیان دانشجوی دکتری آبخیزداری، دانشکدة جنگل داری، دانشگاه پوترا، مالزی رمضانی عبدالله دانشیار دانشکدة مطالعات محیط زیست، دانشگاه پوترا، مالزی

root morphological and distribution responses of signal grass (brachiaria decumbens) to long-term cattle grazing were examined in a tropical pasture in malaysia. the treatments were no grazing by cattle and grazing at a moderate stocking density (2.7 animal unit/ha) under rotational grazing for 33 years. the method consists of taking soil core using a soil corer to a depth of 30 cm and extracti...

Ehsan Bahrami, Narges Yarmoghaddam,

In this paper, we propose a new parametric distribution which called as the Beta Modified Weibull Power Series (BMWPS) distribution. This distribution is obtained by compounding Beta Modified Weibull (BMW) and power series distributions. BMWPS distribution contains, as special sub-models, such as Beta Modified Weibull Poisson (BMWP) distribution, Beta Modified Weibull Geometric (BMWG) distribut...

Journal: :journal of agricultural science and technology 2010
a. afshari e. soleiman-negadian p. shishebor

the seasonal abundance patterns of the cotton aphid, aphis gossypii glover, in cotton fields at gorgan in northern iran were studied during two growing seasons of 2002 and 2003. the spatial distribution of different developmental stages and morphs of the aphid was described by fitting data to poisson (random) and negative binomial (aggregated) dis-tributions, and calculating the dispersion indi...

ژورنال: علوم آب و خاک 2007
محمدحسن راشدمحصل, , مهدی نصیری‌ محلاتی, , آسیه سیاه‌مرگویی, , علی اصغر محمدآبادی, , محمد بنایان اول, ,

This study was performed in two barley fields, in Experimental Station, Agricultural College of Ferdowsi University of Mashhad in 2003. Sampling was done by systematic method in which samples were taken from the corners of 7m*7m grids using 0.5m 0.5m size quadrates in three stages (pre herbicide, post herbicide and pre harvesting stages). The results indicted that the density of annual weed see...

غضنفری مجرد, مهدی, مستأجران گورتانی, اعظم, موسوی خرشتمی, سیده کبری,

Using mean-field and semi-classical approximation of Thomas-Fermi, within a statistical model, equation of state and critical properties of symmetric nuclear matter is studied.  In this model, two body and phenomenological interaction of Myers and Swiatecki is used in phase space. By performing  a functional variation of the total Helmholtz free energy of system with respect to the nucleonic di...

محمدحسن راشدمحصل, , مهدی نصیری‌ محلاتی, , آسیه سیاه‌مرگویی, , علی اصغر محمدآبادی, , محمد بنایان اول, ,

This study was performed in two barley fields, in Experimental Station, Agricultural College of Ferdowsi University of Mashhad in 2003. Sampling was done by systematic method in which samples were taken from the corners of 7m*7m grids using 0.5m 0.5m size quadrates in three stages (pre herbicide, post herbicide and pre harvesting stages). The results indicted that the density of annual weed see...

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