نتایج جستجو برای: factor and r
تعداد نتایج: 16998628 فیلتر نتایج به سال:
Response modification factor (R-factor) is one of the seismic design parameters to consider nonlinear performance of building structures during strong earthquake. Relying on this, many seismic design codes led to reduce earthquake loads imposed to the structure. The present paper tries to evaluate the R-factors of conventional concentric braced frames (CBFs) and special moment frames (MRFs) in ...
This paper presents investigation carried out, including experimental and numerical studies, on low-rise shear-dominated brick masonry structures for the calculation of force reduction factor R. Basic experimental tests were conducted on masonry constituent materials for mechancial characterization. In-plane quasi-static cyclic tests were conducted on twelve full scale brick masonry walls, to u...
abstract objective: diabetes mellitus is the most common metabolic disease. one of the most common problems in diabetic patients is atherosclerotic cardiovascular disease which is induced by hyperlipidemia. impaired lipid metabolism resulting from uncontrolled hyperglycemia has been implicated in cardiovascular complications in diabetic patients. also, glycated hemoglobin (hba1c) has been regar...
Background: Fear is an important emotion that can be adaptive to promote security and survival or to be negatively maladaptive with effect on the quality of life. The aim of the present study was extracting psychometrics features and factor structure of the Fear Survey Schedule for Children—revised in sample of Iranian children and adolescents. Methods: The present study included the ...
ضریب رفتار یا behavior factor برای اولین بار در سال 1985 و در گزارش (aa c-06 (applied technology council) در ادبیات فنی خود را نمایان ساخت . بطور کلی زیربنا و اساس ظهور ضریب r در آیین نامه استفاده از ظرفیت مازاد بر حالت الاستیک مصالح می باشد. استفاده از خصوصیات پلاستیک مصالح باعث می شود که طراحی ها اقتصادی تر شده و دستیابی به طرحهای بهینه با توجه به خصوصیات واقعی مصالح میسر شود. ضریب رفتار سازه...
Background and Aim: The fair access to health services is one of the most important challenges of the country health system. The family physician was designed to increase access to services, reduce parallel work, and make optimal use of the country’s health resources. The aim of this study was to investigate the factors related to the longevity of physicians in the family physicians Materials ...
Abstract Objective: Diabetes mellitus is the most common metabolic disease. One of the most common problems in diabetic patients is atherosclerotic cardiovascular disease which is induced by hyperlipidemia. Impaired lipid metabolism resulting from uncontrolled hyperglycemia has been implicated in cardiovascular complications in diabetic patients. Also, glycated hemoglobin (HbA1c) has been rega...
accelerated soil erosion is an undesirable process that adversely affects water and soil resources. rainfall erosivity is an important factor in water erosion models. accordingly, the present study was conducted to estimate the rainfall erosivity throughout iran based on the latest available detailed rainfall data while considering its temporal and spatial variations. to accomplish this, th...
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