The synthesis of 1-(5-(4-chlorophenyl)thiazol-2-yl)hydrazine hydrobromide was achieved in a single step by condensation of 2-bromo-1-(4-chlorophenyl)ethanone with thiosemicarbazide in absolute ethanol. The structure of the target compound was deduced by modern spectroscopic techn...
The modeling of gas yield with time for the biogas production from waste by-products of ethanol production process was studied. The wastes from the processing of four starch feedstock and from their fermentation wort were utilized for the biogas production studies. The wastes con...
Aims: Solving Dirichlet’s problem through large singular finite elements method for the Poisson’s equation. Study design: Large Singular Finite Elements Method (LSFEM). Place and Duration of Study: Sample: Department of Physics, UFR-SEA, University of Ouagadougou, Burkina Faso, b...
In this paper, the exp-function method is used to obtain generalized travelling wave solutions of a Nonlinear Evolution Equation of variable coefficients. It is shown that the Exp-function method, with the help of symbolic computation, provides a straightforward and powerful math...
The viscosity at constant shear rate of 30 rpm and density of Lophira lanceolata oil (LLO) were measured at different temperatures. The viscosity at constant temperature, 285 K was measured at different shear rates. The results show that viscosity decreases with both shear rate a...
To describe the time dependent response of a variety of viscoelastic materials, a one-dimensional nonlinear rheological mathematical model with constant material parameters is developed by using the stress decomposition theory. The model represents, under relaxation of stress, th...
The compound semiconductors of zinc-blende structures (ZBS) are the promising materials for numerous experimental and theoretical investigations. These investigations are the consequences of efforts devoted to understand the interesting crystal properties and interaction mechanis...
Zirconia stabilized by addition of bismuth oxide was prepared by co precipitation process from metal oxide chlorides using sodium hydroxide. The dried gels produced pure phase ZrO2-Bi2O3 powders on calcination at 800ºC for the co precipitated powders. The phase evolution was stud...
The synthesis and characterization of two new ruthenium diporphyrazines is reported. The ruthenium (III) chloride in cyclotetramerization reaction with 5,6-diphenylpyrazine-2,3- dicarbonitrile or 1,2-dicyanobenzene resulted the green and blue diporphyrazinato counterparts respect...
Aims: 222Rn, a radioactive inert gas is a large component of the natural radiation that humans are exposed to, can pose a threat to the public health when it accumulates in poorly ventilated residential and occupational settings. About half of the total radiation effective dose t...