February 2011
Critical appraisal of an irrigation command and water productivity based on satellite remote sensing
Irrigation policy makers and managers need information on the irrigation performance and productivity of water at various scales to devise appropriate water management strategies, considering dwindling water availability, further threats due to continually rising population and food demand. It is often difficult to access sufficient water supply and use data to determine crop water consumption and irrigation...
February 2011
Radon and radium concentrations in 120 samples of drinking springs and rivers water sources of northwest regions of Mashhad
Radon makes up approximately half of the total dose of radiation were received naturally. The majority of it comes from the inhalation of progeny of 222Rn and is prominent in a closed atmosphere. The continuous measurement of the levels of 222Rn concentration in different geographical areas is of great importance, particularly in living places. In this study, the concentration of radium and...
February 2011
New technological root for regenerating demineralized water plants for safe environment
The experiments in this work were subjected to lab-scale ion exchangers unit, consists of two kinds of ion exchangers (strong acid cation exchanger and weak base anion exchangers). The experimental investigation was directed at studying a new method for regenerating the strongly acidic cation exchanger in the demineralized water unit using one concentration of sulfuric acid (5%) directly without any...
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