Vanadium pentoxide powders are very useful in producing ferrous as well as aluminiumalloys, inremoving carbon and sulphur and as catalysts in synthesizing ammonia and sulphuric acid. It is also used as corrosion inhibitor petroleum and chemical processing.
In the present investigation V2O5 powders are exposed to biofield. Both the exposed and unexposed powders are later characterized by various techniques. The average particle size is found to decrease with increase in number of days after treatment upto a maximum of 15.9% in 110 days indicating severe fracture at agglomerate/crystallite boundaries. The BET surface area showed a surprising decrease (it should increase as particle size is decreased) of 7.22% in 109 days indicating the surface densification/removal of sharp surface corners/formation of large particles. SEM photographs indeed showed that samples exposed to biofield after 20 days showed increase in size as well as rounded corners. Thermal analysis indicated an increase in melting temperature by 9.9% in samples treated after 57 days along with a much reduced change in weight.
X-ray diffraction of the powder samples indicated both increase and decrease in crystallite size, unit cell volume and molecular weight of samples exposed to biofield after 28, 104, 124 and 139 days.
These results indicate that the catalytic nature of vanadium pentoxide can be controlled by exposing to bio field and using after a specific number of days after exposure.

In this paper a comparative study of the electronic transport phenomenon in the semiconductor II-VI alloy HgCdTe is presented. In this study we have adopted Monte Carlo simulation. The model of the method used in this work takes into account the valleys, L and X of the conduction band, in which considered isotropic but not parabolic. This model provides a detailed description of the electronic dynamic and the electrons behavior at high electrical fields and high temperatures in these materials in each considered valleys. Furthermore, he permits two main functions: the calculation of the scatterings rates taken into consideration and the determination of the instantaneous quantities such as speed, energy etc. The obtained results, compared on many experimental reference frames, are satisfactory.

In the present work nickel-cobalt oxide nanocomposite were prepared using well known co-precipitation method. For comparison nano nickel oxide and nano cobalt oxide was also prepared. The samples were annealed at 500°C and characterized using SEM, TG, FTIR, XRD and UV. The dielectric studies at various frequencies of nickel-cobalt oxide nanocomposite were also done. The results showed that the capacitance of the as prepared and the annealed samples varied from milli farad to pico farad range. From this study it can be concluded that the present material by proper tuning can be used as a supercapacitor.