نتایج جستجو برای: factor and r
تعداد نتایج: 16998628 فیلتر نتایج به سال:
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...
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...
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...
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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