نتایج جستجو برای: field of values
تعداد نتایج: 21230144 فیلتر نتایج به سال:
The values of cultural heritage can be considered as a key word in interventions in conservation of cultural heritage. Nowadays, the role of value in various fields of heritage, especially in architecture heritage, is one of the most important factors that affects the concept of conservation. Along with and related to the concept of value, lies the concept of conservation, one as old as human h...
In this paper we investigate the effect of a random transverse field, distributed according to a trimodal distribution, on the phase diagram and magnetic properties of a two-dimensional lattice (square with z=4), ferromagnetic Ising system consisting of magnetic atoms with spin-1. This study is done using the effectivefield theory (EFT) with correlations method. The equations are derived using...
Background: This study aims to evaluate the negative health impacts of exposure to electromagnetic field and to prepare a risk map of two selected call centers. Materials and Methods: Two call centers whose electromagnetic field values were measured by calibrated low high and point frequency measurement device. The measurements were performed by following the EN 50492 Standards. 178 employees ...
introduction wedge modifiers are commonly applied in external beam radiotherapy to change the dose distribution corresponding to the body contour and to obtain a uniform dose distribution within the target volume. since the radiation dose delivered to the target must be within ±5% of the prescribed dose, accurate dose calculation by a treatment planning system (tps) is important. the objective ...
the purpose of this study was evaluated the hierarchy of values and source of influence on beliefs of candidates entering the field of physical education. the research method was survey. the statistical population were participants in the physical education practical test. 180 boys and 120 girls were randomly selected as the statistical sample (n= 300). data collection tools was the allport, v...
Introduction: Irregular/blocked fields are routinely used in radiotherapy. The doses of these fields are usually calculated by means of equivalent square method that is inherently prone to uncertainty. On the other hand, Clarkson’s sector integration method is a dose calculation method which offers far better accuracy in dose calculation of irregular fields. The Scatter Air Ratio (SAR) of an in...
because thin plate reinforced concrete members such as walls and slabs are greatly influenced by the drying shrinkage, cracks can occur in these members due to the restraint of the volume change caused by drying shrinkage. therefore, the control of cracking due to drying shrinkage is very important in building construction that the thin plate members are frequently used. however, few researches...
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