نتایج جستجو برای: time periods
تعداد نتایج: 1958427 فیلتر نتایج به سال:
The Oman Sea (Makoran) has always been influenced by the monsoon currents, and this phenomenon is a natural stressor for species inhabiting the marine ecosystem, including bivalve molluscs. To study the diversity of subterranean bivalves sampled from three areas of Ramin, Beris, and Pasabandar, a total of 10 stations, in the winter of Pre-Manson, Mansoon and Post Mansoon in 2018. In this study,...
Achaemanid art is one of the most important periods of Iranian ancient culture. In different periods of time, it has been considered as the determiner of the Iranian identity. The art of this era has been analyzed and investigated in different ways. According to the range of the available studies and the intertextuality which is the approach of this study, the research question is that whether ...
Changes in nutrient concentrations of soil can specify optimal management of manure and prevent environmental and water resources pollution. The present study was conducted with the objective of changing macronutrients concentrations of Nitrogen, Phosphorus, and Potassium with amendments application of polyvinyl acetate, bean residual, and a combination of polyvinyl acetate + bean residual for ...
background : one of the major health policy issues, in the both developed and developing countries, is the equality in the distribution of health resources. the aim of this study was to investigate the disparity in the distribution of health physical resources across the provinces of iran in 2001 and 2011. methods : this was a cross-sectional retrospective study which investigated inequality in...
to evaluate the ultimate compressive strength of five composite resins after 1 hour, 24 hours, 7 days and 1 month. twenty four cylindrical 4 mm×8mm specimens of each commonly used composite resins in posterior region (nulite-f , z250 , p60, biscore, tetric ceram hb) were prepared. each group of composite resins were divided into four time groups of 1 h, 24 h, 7 days and 1 month. all of specimen...
in this paper, an exact geometric algorithm is presented for solving two-job sequencing and scheduling problems in flexible flow shop and job shop environments while the resources are (un)available in some time periods and processors (un)availability is the same in all work centers. this study seems utterly new and it is applicable to any performance measure based on the completion time. the in...
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