نتایج جستجو برای: factor and r

تعداد نتایج: 16998628  

Journal: :Antimicrobial Agents and Chemotherapy 1976

Journal: :journal of sciences, islamic republic of iran 2007
m.r. vedadi

we call a module  essentially retractable if homr for all essential submodules n of m. for a right fbn ring r, it is shown that: (i)  a non-zero module  is retractable (in the sense that homr for all non-zero ) if and only if certain factor modules of m are essentially retractable nonsingular modules over r modulo their annihilators. (ii)  a non-zero module  is essentially retractable if and on...

Fatemeh Sheikhbahaei, Frouzan Khademi, Hassan Bahari, Rostam Ghorbani, Seyed Hassan Eftekhar Vaghefi, Tahmineh Mokhtari,

Introduction: Height is an important biological human characteristic in anthropological studies and forensic medicine. In this way, forearm length (FAL) can be a useful factor for the height prediction in different population. The goal of this study was to find the relation between FAL and height in natives of Kerman. Methods: In a cross-sectional study, 150 cases including 75 males and 75...

Journal: :Proceedings of the National Academy of Sciences 1975

Journal: :iranian journal of medical physics 0
fatemeh seif department of medical physics & khansari hospital, arak university of medical sciences, arak, iran mojtaba karbalayi department of medical physics, faculty of medicine, isfahan university of medical sciences, isfahan, iran. mohamad reza bayatiani department of medical physics & khansari hospital, arak university of medical sciences, arak, iran mitra karbalayi department of medical physics, faculty of medicine, iran university of medical sciences, tehran, iran. mohamad javad tahmasebi-birgani department of medical physics & golestan hospital, medical faculty, ahvaz jundishapur university of medical sciences, ahvaz, iran

introduction for dose measurement in megavoltage (mv) photon beams with ion chambers, the effect of volume occupied by the air cavity is not negligible. therefore, the result of measurement should be corrected with a displacement perturbation correction factor (pdis) or using an effective point of measurement (epom). the aim of this study is to calculate the epom for cylindrical ion chamber and...

ژورنال: علوم آب و خاک 2010
اخوان, سمیرا , اسلامیان , سید سعید , افیونی, مجید , عابدی کوپایی, جهانگیر , عباسپور, کریم , موسوی, سید فرهاد ,

Temporal and spatial distribution of water components in watersheds, estimation of water quality, and uncertaintiesassociated with these estimations are important issues in freshwater studies. In this study, Soil and Water AssessmentTool (SWAT) model was used to estimate components of freshwater availability: blue water (surface runoff plus deepaquifer recharge), green water flow (actual evapot...

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