July 2009
Simulation of spatial and energy resolution in signal for gas proportional detector
Computer simulations of charge transport and signal generation mechanism have been performed for the Aleph Inner Tracking Detector geometry. A number of factors influence the signal arising from the charge carriers generated within detector volume. In the present simulation, signal fluctuations due to changing of incident charged particle energy and position of the primary generated electron-ion pairs in the gas volume...
July 2009
Properties of the U>>t 2-electrons in two dimensions using the hubbard model
We examine the behaviour of 2 electrons on a 2 x 2 square lattice sites. The Hubbard model was used to model the system and was diagonalized using the configuration interaction method which is a variational method. The variations of the ground state energy ground state double occupied sites D, and the ground state kinetic energy with the interaction strength (u < 0 and u > 0) were examined....
July 2009
Biogas production from blends of cassava (Manihot utilissima) peels with some animal wastes
Cassava peels (CP) obtained after peeling cassava roots were anaerobically digested using 50L capacity fermentor and in blends with some animal wastes. The peels were blended with cow dung (CD), poultry droppings (PD) and swine dung (SD), in the ratio of 1:1. The mean flammable biogas yield of the cassava peels alone was 2.29 ± 0.97L /total mass of slurry. When blended with CD, PD and SD, mean flammable biogas...
July 2009
Natural radioactivity of coals and its risk assessment
Burning of the coal that occur around coal-fired power plants and also in many of the habitance during the winter season may affect human health as it contains natural radionuclides. In this study, the radioactivity of the different types of coal samples used in Turkey has been determined using a ï§-ray spectrometer which consists of a NaI (Tl) detector connected MCA, and possible health effect were estimated. The...
July 2009
Hydrogenation impairs the hypolipidemic and antioxidant effects of palm oil in rats
The effect of hydrogenated palm oil on lipid profiles and on activities of selected glutathione-dependent enzymes in rats was investigated. Male albino wistar rats were randomly divided into 2 groups, fed on fresh palm oil (control) and hydrogenated palm oil (HPO) supplemented (5% by weight) diets respectively for 10 weeks. Serum cholesterol, liver lipid peroxidation and daily excretion of triacyl glycerol (TAG) and...
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