نتایج جستجو برای: carboxymethylcellulose
تعداد نتایج: 1302 فیلتر نتایج به سال:
The viscosity distribution of the liquid around a rising bubble in carboxymethyl cellulose (CMC) aqueous solutions was measured experimentally by particle image velocimetry (PIV). The effect of the concentration of CMC solutions on the viscosity distribution around a bubble and the coupling relations between the viscosity field, flow field and shear stress field were also studied. Results indic...
OBJECTIVE This study examines the effect of various wound dressings on the pH levels of a wound, using a simulated wound environment. METHOD The pH levels of a 4 different wound dressings (manuka honey dressing, sodium carboxymethylcellulose hydrofiber dressing, polyhydrated ionogen-coated polymer mesh dressing, and a protease modulating collagen cellulose dressing) were tested in a simulated...
Enger, M. D. (North Dakota State University, Fargo), and B. P. Sleeper. Multiple cellulase system from Streptomyces antibioticus. J. Bacteriol. 89:23-27. 1965.-Starch-block zone electrophoresis was used to isolate five electrophoretically distinct, active cellulolytic components (I to V) from the crude extracellular cellulase system of Streptomyces antibioticus (strain C2A). Agar diffusion prec...
We report the exfoliation of graphite in aqueous solutions under high shear rate [∼ 108 s-1] turbulent flow conditions, with a 100% exfoliation yield. The material is stabilized without centrifugation at concentrations up to 100 g/L using carboxymethylcellulose sodium salt to formulate conductive printable inks. The sheet resistance of blade coated films is below ∼2Ω/□. This is a simple and sca...
Polymethylmetacrylate (PMMA) is a synthetic polymer that is being used in large scale in cosmetic surgery to fill soft tissue. In its injectable form, it is made up of microspheres spread within a colloid medium of carboxymethylcellulose. It is used to soften wrinkles, increase volume and enhance facial contour, among other surgical applications. We report a case of a 77-year-old lady who had a...
This paper describes a diffusion-controlled electrolysis of glucose with mediated bioelectrocatalysis at microdisk-electrodes. Under conditions of an extremely fast enzyme reaction, compared with the diffusion of glucose, the current in potential-step chronoamperometry reaches an almost steady state within 10 s, and is proportional to the glucose concentration. The current can be detected at +0...
Globally, large concrete companies have the common purpose of reducing the dependence on additives used in high performance concrete due to the high costs they represent. This study a basic characterization of currently commercial additives is performed upon this characterization substitutes additives locally available are selected and use in the formulation of ready mix concrete evaluating per...
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