March 2008

Thermodynamic and isothermal studies of the biosorption of cadmium (II) from solution by maize wrapper

The removal of Cd (II) from dilute aqueous solution using maize (Zea mays) wrapper as a biosorbent was studied. The biosorption was pH-dependent with an optimum pH of 5 - 7. It was also time-dependent and maximum biosorption was obtained after 100 minutes. The adsorption isotherms obtained fitted well into the Freundlich and Langmuir isotherms. The Freundlich equation obtained was log Г = 1.0813 logCe + 0.958...

Author(s): N. A. Adesola Babarinde, , J. Oyebamiji Babalola and Olumide Olukanni

March 2008

Dielectric study of moisture laden soils at X-band microwave frequency

Interaction of electromagnetic waves with the materials of planet earth provides the information for microwave remote sensing. From the reflected wave it is possible to reveal the information, which is useful for the measurement of dielectric properties. The dielectric properties of material are function of its chemical constituents and physical properties. Measurements of real (ε’) and imaginary...

Author(s): Chaudhari, H. C. and Shinde, V. J.

March 2008

Numerical simulation of aerodynamic and thermal fields inside a cylinder of an alternative engine

We are interested in the study of turbulent and instationary flow inside a cylinder of an alternative engine. The finite element method is used to solve equations model. As the domain of the flow is changing with time due to the moving piston, an arbitrary Lagrange eulerian technique is chosen to reply to this problem. The modelisation is based on classic k- ε model. In this paper, we will present...

Author(s): Z. Barbouchi and J. Bessrour