نتایج جستجو برای: particulate suspensions
تعداد نتایج: 42912 فیلتر نتایج به سال:
1. Two mutant strains of Rhodopseudomonas spheroides, which are blocked in the synthesis of bacteriochlorophyll, accumulate pigments. These have been tentatively identified as magnesium 2,4-divinylphaeoporphyrin a(5) monomethyl ester and the magnesium derivative of 2-devinyl-2-hydroxyethyl-phaeophorbid a, formed by mutant 2/73 and 2/21 respectively. 2. Maximum extracellular production of these ...
Soil nematodes are useful ecological indicators and can be extracted from soil by a variety of techniques. Because the nematode samples (suspensions) quite turbid (i.e., they contain particles organic in addition to nematodes), quantitative taxonomic analyses microscopy difficult. In this study, following three methods for cleaning suspensions obtained Baermann funnels were assessed: repeated c...
In this study, we characterized and modeled the rheology of TEMPO-oxidized cellulose nanofibril (NFC) aqueous suspensions with electrostatically stabilized and unflocculated nanofibrous structures. These colloidal suspensions of slender and wavy nanofibers exhibited a yield stress and a shear thinning behavior at low and high shear rates, respectively. Both the shear yield stress and the consis...
OBJECTIVE It has been proposed that the redox activity of particles may represent a major determinant of their toxicity. We measured the in vitro ability of ambient fine particles [particulate matter with aerodynamic diameters<or=2.5 microm (PM2.5)] to form hydroxyl radicals (.OH) in an oxidant environment, as well as to deplete physiologic antioxidants (ascorbic acid, glutathione) in the natur...
the most important environmental pollutant in steel industry is air pollution due to the process of its products. optimise sitting for this industry, in a great extend will prevent pollutants and emissions. khorasan steel company is located near some populous villages and three rivers. it is necessary to perform an investigation for providing abatement and control of air pollution, in time of p...
PURPOSE The stability and viscosity of preparations of a commercially available, flavored, immediate-release powder for oral suspension (omeprazole-sodium bicarbonate) during refrigerator and room temperature storage were investigated. METHODS Omeprazole-sodium bicarbonate 20-mg packets were suspended to initial omeprazole concentrations of 0.6 and 2 mg/mL, and omeprazole-sodium bicarbonate 4...
in order to ensure the safety of parenterals, international pharmacopoeias and national standards have set up stringent guidelines and standards. particulate con- tamination is a potential health risk caused by intravenous injection of particles large enough to potentially clog the small arteries. particles could be produced through manufacturing and packaging or even dispensing of the pharmace...
BACKGROUND The efficacy of particulate and non-particulate steroids in patients receiving epidural steroid injections remains unclear. OBJECTIVE The purpose of this meta-analysis was to compare the efficacy of particulate and non-particulate steroids in patients receiving epidural injections for radicular pain over 3 months. STUDY DESIGN Systematic review and meta-analysis. METHODS We rev...
backgrounds and objectives: the dispersion of particulate matter has been known as the most serious environmental pollution of cement plants. in the present work, dispersion of the particulate matter from stack of kerman cement plant was investigated using computational fluid dynamics (cfd) modeling.materials and methods: in order to study the dispersion of particulate matter from the stack, a ...
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