نتایج جستجو برای: kerosene
تعداد نتایج: 1547 فیلتر نتایج به سال:
BACKGROUND Acute lower respiratory infections (ALRI) are a leading cause of death among African children under five. A significant proportion of these are attributable to household air pollution from solid fuel use. METHODS We assessed the relationship between cooking practices and ALRI in pooled datasets of Demographic and Health Surveys conducted between 2000 and 2011 in countries of sub-Sa...
The air pollution-related health benefits of interventions to reduce indoor air pollution from cooking and heating with solid fuels are evaluated in South and South-east Asia, Africa, and the Americas using generalized cost-effectiveness methodology. Three scenarios are assessed: 1) providing access to cleaner fuels, (2) providing access to improved stoves, and (3) providing part of the populat...
The radionuclide of uranium (U) is major radionuclide contained in the long life of high level radioactive liquid waste (HLLW) generated from reprocessing of spent nuclear fuel. The radioactive waste have to be treated to ready for long term disposal. Separation of the U at high efficiencies greatly lowers the volume of the long life alpha radioactive waste to be disposed and decreases the haza...
Bessey et al. (1) reported a simple method of photolytic determination of vitamin A in as little as 0.06ml of blood serum and Jackson et al. (2) and Krause et al. (3) used this method for studies on serum vitamin A. Sahashi et al. (4) reexamined the method applying the apparatus and reagents available in the country. Sobel et al. (5) noticed too high values for carotene, when the method was app...
The effect of different concentration Kerosene had been examined upon Oscillatoria splendida, optical density depended as measure for growth well chlorophyll a concentration, Phycocyanin pigment and protein an indicator effects, in addition to morphological changes. the control sample was (0.34), while it (0.23) at 0.25% kerosene It is noted slowing with high treatment, 0.5% peak (0.08), resist...
This research aimed to study the effects of individual components on physicochemical properties systems composed surfactants, polymers, oils, and electrolytes in order maximize recovery efficiency kerosene while minimizing impact environment human health. Four independent factors, namely anionic surfactant sodium dodecylbenzene sulfonate (X1) (SDBS), oil (X2) (kerosene), water-soluble polymer p...
چکیده ندارد.
in the present paper, the biodesulfurization of simulated light fuel oil (i.e., dibenzothiophene (dbt) in dodecane) and untreated kerosene with a high total sulfur content has been studied by a native isolated bacterium named bacillus cereus hn. the influences of various parameters such as the reaction temperature (t), biocatalyst cell density, oil phase fraction (ofp), and initial dbt concentr...
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