The temporal variations in ambient carbon monoxide (CO) concentration has been investigated between weekdays and weekends through the analysis of a year-long measurement data between March 2009 - February 2010 taken at the central business district in Akure, Nigeria. This area ha...
Open access
Research Article10.9734/PSIJ/2017/35279
Ba(Mg1/3Nb2/3)O3 is an important microwave polar dielectric material. However, the large leakage current and losses due to defects incorporated during high temperature processing restricts its use in microwave devices. We have synthesized phase pure perovskite Ba(Mg1/3Nb2/3)O3 by...
Open access
Research Article10.9734/PSIJ/2017/37111
Fine particles (PM2.5) are mainly generated by combustion processes including emissions from motor vehicles, combustion of fossil fuel for power generation and large industrial processes such as ore and metal smelting. They may also include natural emissions such as fine windblow...
Open access
Research Article10.9734/PSIJ/2017/36683
The study determined the mean concentrations of natural radionuclides, the annual intake of radionuclides and annual effective dose due to the ingestion of Vegetables from selected areas of Manyoni in Tanzania. Thirty (30) bunches of leafy vegetable samples grouped into five cate...
Open access
Research Article10.9734/PSIJ/2017/34746
A linear thermoelectric generation of a fundamental acoustic wave in organic conductors with two conducting channels, quasi-one dimensional (q1D) and quasi-two dimensional (q2D), is analyzed theoretically. Specifically, the case when an acoustic wave with a fundamental frequency...
Open access
Research Article10.9734/PSIJ/2017/36390
The frontier molecular orbitals (FMOs) are very important for describing chemical reactivity and understanding the static molecular reactivity. The HOMO and LUMO energies of 1,3,4-thiadiazole and its substituted derivatives were calculated using the hybrid B3LYP method with a lar...
Open access
Research Article10.9734/PSIJ/2017/36555
The effect of a standing high-power high-frequency radio wave on the behavior of the F-layer ionospheric plasma is numerically investigated with the help of the mathematical model, developed earlier in the Polar Geophysical Institute. The mathematical model is based on a numerica...
Open access
Research Article10.9734/PSIJ/2017/36043
Cadmium Sulphide (CdS) thin films were deposited onto glass substrates by chemical bath deposition (CBD) technique from a bath containing Cadmium acetate, ammonium acetate, thiourea and ammonium hydroxide and the bath was maintained at using 78H – 1 hot plate magnetic stirrer. T...
Open access
Research Article10.9734/PSIJ/2017/35738
The impact on depths and P-wave velocities deduced from seismic data, due to subsurface water variation, resulting from the variation in the amount of annual rainfall, was investigated in this study in order to establish the best season for reliable seismic surveys in Zaria Area,...
Open access
Research Article10.9734/PSIJ/2017/36348
DPCD is an emerging non-thermal process which evidently inactivates certain micro organisms and enzymes at lower temperatures and high pressure combination thereby maintaining fresh like characteristics as well as providing convenient shelf life, nutritional value and the product...
Open access
Research Article10.9734/PSIJ/2017/35518
Non-commutativity and uncertainty relation in quantum mechanics are considered here from the group-theoretic point of view. It is shown that uncertainty relation is connected with one of unit vector of orthogonal basis of spinor transformations space. The group-theoretic approach...
Open access
Research Article10.9734/PSIJ/2017/33792
The potential of Isatin (1H-indole-2,3-dione) as a donor moiety in an alternating donor-acceptor conjugated oligomer models was studied. Eight different electron acceptor molecules investigated are: thiazole (Z),thiadiazole (D), thienopyrazine (TP), thienothiadiazole (TD), benzot...
Open access
Research Article10.9734/PSIJ/2017/35185
In this paper we consider the coherent states which play an important role in quantum optics, especially in laser physics and much work in this field. Here we connect the coherent states with the Lucas numbers and Fibonacci numbers.
Open access
Research Article10.9734/PSIJ/2017/35177
Automatic fire suppression systems control and extinguish fires in buildings without human intervention from widespread use of the techniques of measurements and control. Automatic control is achieved here by a design and implementation process. This system implements an early de...
Open access
Research Article10.9734/PSIJ/2017/34433