نتایج جستجو برای: chemical treatment
تعداد نتایج: 1726903 فیلتر نتایج به سال:
In this study the effects of gamma irradiation and frozen storage on sensory, chemical and microbial quality of fish fillets was investigated. Hypophtalmyctis molitrix were equally divided to 12 fillests, then these 12 fillets were equally arranged in 4 groups (1-4). One group considered as control with no treatment and the other 3 groups was treated by 0.75, 3 and 5 KGy of gamma irradiation...
abstract in order to investigate the effects of nutrient resources and weed management on qualitative and quantitative criteria of cat tyme (teucrium polium), an experiment was conducted as split plot based on a complete randomized block design with 3 replications at the agricultural research station, ferdowsi university of mashhad, iran, during the years 2008 and 2009. treatments included diff...
Background andpurpose:Currently, leachate production and its management are major environmental problems associated with the operation of solid waste landfill. The aim of this study was to evaluate the efficiency of combined processes of coagulation, ozonation, and advanced oxidation using UV-activated oxone in treatment of landfill leachate of Zahedan, Iran. Materials andmethods: This exper...
126 abstract: in this research we studied the effects of cyclic hydration and dehydration of cysts of artemia urmiana and artemia parthenogenetica on the hatching percentage, survival and growth. the experiment was carried out in 3 treatments (1-3 hydration/dehydration cycles) with 3 replicates for each treatment. later effects of cold preservation at -20°c during three time periods were ...
Introduction: Novichoks are considered as the fourth generation of chemical weapons and nerve agents (NA) category. NAs were produced and developed during the Cold War in the (former) Soviet :union:. Due to the confidentiality of the manufacturing process of these agents, there is little information about the properties of these compounds. Like other NA, novichoks are organophosphorus compounds...
We tested a threshold-based bed bug (Cimex lectularius L.) management approach with the goal of achieving elimination with minimal or no insecticide application. Thirty-two bed bug infested apartments were identified. These apartments were divided into four treatment groups based on apartment size and initial bed bug count, obtained through a combination of visual inspection and bed bug monitor...
introduction to achieve the higher economic yield of crop plants, supplying enough nutrients to plants is very important. moreover, nutrient uptakes by plants is influenced by the soil water contents. however, nowadays chemical fertilizer application is important agronomic factor that has significant effects on growth and quantity and quality of final yield, but traditional nutrient management ...
today oil removal from contaminated soil by new methods such as bioremediation is necessary. in this paper, the effect of chemical fertilizers and aeration on bioremediation of oil-contaminated soil has been investigated. also the control group, (bioremediation of petroleum hydrocarbons in contaminated soil without treatment by chemical fertilizers and aeration treatment was examined. the cond...
Background and Objective: Surface water and underground water quality in countries that facing dehydration have increased the interest of the community to use Household Water Treatment devices. The aim of this study was the evaluation of the quality of drinking water of Household Water Treatment devices and general distribution network in Garmsar, which is under the control of the water safety ...
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