have been extensively studied. Various existence and uniqueness results are given in [1], [2], and [3], to name a few. More recently, in [4], it is shown that by certain transformations the boundary layer equations for the class of non-Newtonian uids named pseudoplastic can be generalized in the above form for the ODE case n = 1. Under this physical interpretation the above equation, considered...

The aim of this work was to study the production of exopolysaccharide (EPS) from a novel ustilaginomycetes yeast strain Pseudozyma sp. NII 08165. The culture produced 3.5g/l EPS on fourth day of fermentation in a glucose-based medium. The structural characterization revealed that the EPS was a polymer of glucose, galactose and mannose in the ratio of 2.4:5.0:2.6 with a molecular weight of 1.7MD...

This article discusses the well-posedness and error analysis of the coupling of finite and boundary elements for transmission or contact problems in nonlinear elasticity. It concerns “pseudoplastic”, p–Laplacian-type Hencky materials with an unbounded stress–strain relation, as they arise in the modelling of ice sheets, non-Newtonian fluids or porous media. For 1 < p < 2 the bilinear form of th...

shampoos are products which remove surface grease and dirt from the hair shaft and scalp. the cleansing or detergent action of a shampoo is a primary function. however, the foaming characteristic of a shampoo has an important role in its acceptability. often alkanolamides are used for the formation of a stable foam; but because of producing nitrosamines, they are potentially carcinogenic compou...

Frontal polymerization has been successfully used to synthesize poly(N-isopropylacrylamide) nanocomposite hydrogels containing graphene. The latter was directly achieved by ultrasound treatment of a dispersion of graphite inN-methylpyrrolidone. The dispersion, having the concentration of 2.21 g L , was characterized by TEM analysis and mixed with suitable amounts of N-isopropylacrylamide for th...

Rhizobium tropici, a member of the Rhizobiaceae family, has the ability to synthesize and secrete extracellular polysaccharides (EPS). Rhizobial EPS have attracted much attention from the scientific and industrial communities. Rhizobial isolates and R. tropici mutants that produced higher levels of EPS than the wild-type strain SEMIA4080 were used in the present study. The results suggested a h...

Pectin derived from plant waste sources is currently focused as an economical and eco-friendly approach. Optimization of pectin extraction from muskmelon peel by response surface methodology (RSM) was investigated in this study. Box-Behnken Design (BBD) was used to identify the optimal level of the extraction variables such as time, pH and temperature. A second-order model equation for pectin e...

Gas hydrate slurries, which are prepared using solid hydrates and water, effective secondary refrigerants with a high latent heat of fusion could be used to reduce global warming. The application these slurries requires knowledge their flow characteristics in good poor states. In the present work, properties R-134a R-32 gas circulating loop tube were investigated Rabinowitsch–Mooney equation es...