The equilibrium chemical reactions taken place in a converter reactor of the Khorasan Petrochemical Ammonia plant was studied using the minimization of Gibbs free energy method. In the minimization of the Gibbs free energy function the Davidon– Fletcher–Powell (DFP) optimization procedure using the penalty terms in the well-defined objective function was used. It should be noted that in the DFP...

The purpose of this study is that, whether inputs and insurance protection policy can effect on income inequality or not? The data which was needed for this study was gained by stratified simple random sampling from 573 wheat insured and uninsured farmers in North, Razavi and South Khorasan provinces in 1383. Result of this study showed that wheat farmer’s income tends to inequality as among th...

Background: Many developing countries are facing the problem of rapidly rising death rate from fatal accidents involving motorcycles. Objective: To determine the effect of participation and implementation of the World Health Organization (WHO) Safe Community Programme on death rate from fatal motorcycle accidents. Methods: Motorcycle’ fatal accident data were obtained from forensic medicine dep...

BACKGROUND The objective of the present study was to survey the presence of Sarcocystis in sheep's brain in North Khorasan Province. METHODS In general, 80 samples of sheep's brain were collected from slaughtered sheep in slaughterhouses of North Khorasan Province. Tissue digestion method was used for observing bradyzoites in tissues. Histopathological processing tracing Sarcocystis and ensui...

OBJECTIVE(S) Human T-cell lymphotropic virus type-1 is an oncornavirus that causes adult T cell leukemia (ATL) HTLV-I-associated myelopathy⁄tropical spastic paraparesis (HAM/TSP). Golestan province is located in North West of Khorasan province known as an endemic area for HTLV-I in Iran. This study aimed to evaluate seroprevalence of HTLV-I in Golestan province. MATERIALS AND METHODS In this ...

in order to identify the plant parasitic nematodes of tomato fields in northern khorasan province, 50 soil and root samples were collected during 2009 - 2010. nematodes were extracted by combined sieving and centrifugal-flotation method and processed to be transferred to glycerin. after preparing microscope slides, the morphological and morphometrical characters of the nematodes were studied us...

calomyscus mystax is endemic to great balkhan mountains in southwestern turkmenistan. however there have been some inaccurate reports of existing this species in koprtdagh mts. and northern iran, but these were considered as calomyscus elburzensis and calomyscus grandis. phylogenetic analyses on cytb gene clustered samples from kopetdagh mts. in northeastern iran with one specimen of c. mystax ...

in this paper, synoptic patterns associated with maximum precipitation over the khorasan region, between 1985-2000 with the computation of some forcing functions are studied and classified into three types. type a: consists of the anticyclones that move from the scandinavian peninsula and central-europe in an east and south-east direction during cold seasons, with relatively high speed and cold...

but in some cases due to the inability forced the princes to rule some areas such as northern khorasan (which is a combination of social and population) to the heads of state and the khans and the tribes were deposited. so that quchan government (except for short) is always the beginning of the reign of the qajar dynasty zfranlvha and raza khan and their children and their amyrgvnh qlykhan boy ...