نتایج جستجو برای: ریاضی factor analysis

تعداد نتایج: 3487166  

Journal: :hepatitis monthly 0
seyyed mohammad miri baqiyatallah research center for gastroenterology and liver diseases, ir iran; kowsar, the netherlands +98-2188621755, [email protected] azam raoofi kowsar, the netherlands +98-2188621755, [email protected]; kowsar, the netherlands +98-2188621755, [email protected] zahra heidari kowsar, the netherlands +98-2188621755, [email protected]; department of clinical psychology, shahid beheshti university of medical science and health services, ir iran

background citation analysis as one of the most widely used methods of bibliometrics can be used for computing the various impact measures for scholars based on data from citation databases. journal citation reports (jcr) from thomson reuters provides annual report in the form of impact factor (if) for each journal. objectives we aimed to evaluate the citation parameters of hepatitis monthly by...

Journal: :international journal of preventive medicine 0
elham shakibazadeh arash rashidian bagher larijani davood shojaeezadeh

background: this article is a report of psychometric testing ofthe farsi version of resources and support for chronic illnessself‑management (rssm) scale.methods: in this cross‑sectional study, a convenience sampleof 160 patients with type 2 diabetes, registered with the charityfoundation for special diseases’ team‑focused diabetes clinic,were recruited (response rate=83.7%; n=134). participant...

Journal: :iranian journal of public health 0
mostafa amini rarani dept. of health management and economics, school of public health, tehran university of medical sciences, tehran, iran. hassan rafiye esmaeil khedmati morasae

as social health is a condition-driven, dynamic and fluid concept, it seems necessary to construct and obtain a national and relevant concept of it for every society. providing an empirical back up for iran's concept of social health was the aim of the present study.this study is an ecologic study in which available data for 30 provinces of iran in 2007 were analyzed. in order to prove construc...

Journal: :journal of the structural engineering and geotechnics 0
l shahryari science and research branch, islamic azad university, fars, iran

this paper consists of three sections. in the first section an efficient method is used for decomposition of the canonical matrices associated with repetitive structures. to this end, cylindrical coordinate system, as well as a special numbering scheme were employed. in the second section, divide and conquer method have been used for eigensolution of these structures, where the matrices are in ...

Journal: :international journal of agricultural science, research and technology in extension and education systems 0
solieman rasouliazar assistant professor of agricultural management, mahabad branch, islamic azad university, mahabad, iran maryam sadeghi msc student of agricultural management, mahabad branch, islamic azad university, mahabad, iran nouraldin shayesteh professor of plant protection, mahabad branch, islamic azad university, mahabad, iran

organic agriculture, sometimes called biological or ecological agriculture, combines traditional conservation-minded farming methods with modern farming technologies .the purpose of this research was to identify management skills in development of organic agriculture in west azerbaijan province (iran) farms. the target population of this research included all agricultural experts who work in we...

Journal: :پژوهش های حبوبات ایران 0
محمدی محمدی بی همتا بی همتا دُری دُری

abstract in order to study the effects of quantitative and qualitative traits on cooking characteristics and protein percentage of 15 red bean genotypes, a randomized complete block design was conducted with three replications in normal irrigation and drought stress. these traits were measured in farm and nutrition laboratory employing international standard of ciat. analyses of variance showed...

Journal: :desert 2013
m. jafari m. biniaz e. janfaza m.j. nematolahi m. karimpour reyhan

relationships between soil factors and vegetation types in playa of damghan was investigated. six vegetationtypes including artemisia.sieberi, arundo. sp, artemisia.sieberi-peganum.harmala, alhagi.cammelerom,artemisia.sieberi-petropyron.sp, tamarix.passerinoides-halocnemum strobilaceum. one bare land was recognized inthe study area and the research was conducted within mentioned types. canopy p...

Journal: :journal of agricultural science and technology 2010
j. ashkani h. pakniyat y. emam m. t. assad m. j. bahrani

eight genotypes of spring safflower (carthamus tinctorius l.) were evaluated for several physiological traits under stress and non-stress water regimes. data were analyzed using principal factor analysis. the factor analysis technique extracted six factors under non-stress conditions. six factors explained about 80% of the total variation, and only 40% of the variance was accounted for by the f...

Journal: :iranian journal of science and technology (sciences) 2014
a. shakeri

concentrations of elements (as, co, cu, ni, mo, pb, v, cd, cr and zn) are studied in the surface sediments of bakhtegan lake, northwest of nyriz city, iran, to assess metal contamination. the average abundance order of trace elements content in bakhtegan lake sediments is cr>ni> v> zn> cu> co> as> pb> mo>cd. the comparison of trace elements concentration in bakhtegan lake sediments with toxicol...

Journal: :iranian journal of materials forming 2014
sh. molaei m. shahbaz r. ebrahimi

frictional shear stress is usually determined by utilizing the coefficient of friction or the constant friction factor models. the present study deals with finite element analysis of double cup extrusion process to determine the relationship between constant friction factor (m) and coefficient of friction (µ), since the metal flow in this process is very sensitive to frictional conditions. ther...

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