نتایج جستجو برای: water sample
تعداد نتایج: 939644 فیلتر نتایج به سال:
Hot working condition is the integration result among temperature, humidity, velocity of air movement, and hot radiation from the body's workers, which causes the decrease of systol-icblood pressure withits complication (1). The kitchen is a place with hot working condition because there is process of cooking using the instruments producing hot radiation making the space of kitchen to be hot. A...
BACKGROUND The aims of the present study were to determine the prevalence of toxoplasmosis in pregnant women at first trimester of their pregnancy and to follow up the seroconversion for next two trimesters, and to identify the risk factors and possible contamination routes in Aydin province, Turkey. METHOD The sample size was calculated as 423 on a prevalence of 50%, d=0.05 at a confidence l...
Fractionation is important to understand someone’s health. How we can simulate blood fractionation through a simple, inexpensive ink spread experiment more about blood fractionation and liquid chromatography. Cotton will spread on ink the most because it has the most pores. Pilot ink spreads fast because it is water-based (low viscosity). Higher temperatures should result in more spread because...
today many countries have water shortage problems, so most of them compel to resort to desalination processes. this paper describes the effect of indirect contact freezing by external cooling for desalination of seawater and brackish water. although various types of processes are introduced for desalination and such processes as reverse osmosis (ro) and multi-effect distillation (med) are used ...
gol-e-gohar iron ore mine of sirjan in southern part of iran is a large open pit that operates below the groundwater table and during mining operation, dewatering is required to prevent operation processes from flooding. current operation is going on by digging wells in or out of the pit and pumping to prevent flooding. as a result of the former dewatering operation a vast deep cone of depressi...
rivers and runoff have always been of interest to human beings. in order to make use of the proper water resources, human societies, industrial and agricultural centers, etc. have usually been established near rivers. as the time goes on, these societies developed, and therefore water resources were extracted more and more. consequently, conditions of water quality of the rivers experienced rap...
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