نتایج جستجو برای: coke powder
تعداد نتایج: 49670 فیلتر نتایج به سال:
DNA repair is an essential mechanism for cells to maintain their genomic integrity under endogenous or exogenous assault. Reduced DNA repair capacity (DRC) is associated with increased risk for several environmentally related cancers. The micronucleus in peripheral lymphocytes has been validated as a biomarker of chromosomal damage, increasing cancer risk in human populations. We hypothesized t...
OBJECTIVES This study evaluated the levels of exposure to polycyclic aromatic hydrocarbons (PAHs) and their relationship with oxidative DNA damage among Vietnamese coke-oven workers. METHODS We collected urine from 36 coke-oven workers (exposed group) at the beginning and end of the shift on 2 consecutive days. We also collected urine from 78 medical staff (control group). Information was col...
Mathematical model for a pilot scale iron ore pellet induration furnace has been developed which considers the process of induration including the reactions of limestone, magnetite and coke. The differential equations of energy, mass and momentum are solved simultaneously. The profiles of temperature, pressure and concentration are obtained. Performing separate experiments on sub processes; dry...
Fluidized bed was employed to investigate propane steam reforming over Ni-K/CeO2-Al2O3 catalyst. The catalyst was characterized by XRD, SEM, TG/DTA, and N2 adsorption-desorption tests. Effects of promoters, space velocity, temperature, and steam/propane (S/C) ratio on propane conversion, H2 yield, H2/CO ratio, and stability were studied and discussed. The experiments were carried out under cond...
The recycling potential is being actualized due to the trends in production and use of powder liquid combustible materials from waste a mining enterprise cycle mining, enrichment processing (polymer packaging containers explosives, large tires rubber products during operation vehicles, coal coke breeze coking coal, oil vehicles mechanization equipment). In material under consideration, SWOT ana...
Abstract Energy and environmental issues have triggered the search for new sources of green energy alternatives in recent years. Biofuel production from renewable is widely considered one most sustainable economic sustainability. Microalgae are currently being promoted as promising liquid biofuel feedstocks due to their rapid growth, high lipid capacity, carbon–neutral cycle. In this study, who...
Coke-oven workers are exposed to high concentrations of coke-oven emissions, which are comprised mainly of polycyclic aromatic hydrocarbons. We conducted a pilot study to determine the time changes in urinary 1-hydroxypyrene (1-OHP) concentrations, as a metabolite of pyrene, in coke-oven workers after exposure to a benzene-soluble fraction (BSF) of total particulates. Thirteen subjects, includi...
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