This study has assessed the concentrations of the essential elements Ca, Cu, Fe, Se and Zn as well as the toxic heavy metals Al, As, Cd, Cr, Ni and Pb in samples of sardine fish collected from Kivukoni, Kunduchi and Bagamoyo fish markets. The collected fish samples were oven drie...
Open access
Research Article10.9734/PSIJ/2018/45156
In this paper, there are presented some results calculated with code ATMED CR (ATom MEDium Collisional Radiative) of the 4th Non-LTE Code Comparison Workshop held in December 2005, when this software didn’t exist, having been released in 2017. NLTE population kinetics codes were...
Open access
Research Article10.9734/PSIJ/2018/44683
An ad hoc correction of a theoretical error does not change other elements of the relevant theory. The mathematical structure of theoretical physics indicates that a removal of the root of an error has a much more profound meaning than that of just correcting an error. Herein, th...
Open access
Research Article10.9734/PSIJ/2018/45286
This research aims to determine the temperature extremes for Ikeja (Lagos), Osogbo (Osun) and Maiduguri (Borno), Nigeria, West Africa using Statistica analytical tool. Thirty (30) years daily maximum and minimum temperature data for Lagos, Osogbo and Maiduguri used for this study...
Open access
Research Article10.9734/PSIJ/2018/34637
BaTiO3 –PbTiO3 nanocomposite materials with the formula (1-x) BaTiO3–(x)PbTiO3 where x=0, 0.2, 0.4, 0.6, 0.8 and 1 were prepared using tartrate method .The structural properties of the samples were characterized using x-ray diffraction( XRD), Fourier Transformed Infrared (FTIR),...
Open access
Research Article10.9734/PSIJ/2018/44797
Analysis of rainfall distribution is important in studying the impact of changing weather and climate on water resources planning and management. This study assessed the performance of three different probability distribution models, namely: Generalized Extreme Value Distribution...
Open access
Research Article10.9734/PSIJ/2018/44983
Metal-Oxide-Semiconductor–MOS devices presented here with thermally grown oxide layer of 3.04-5.92 nm thick were fabricated using p-type Si substrate. Capacitance-voltage (C-V) and conductance-voltage (G/ω-V) characteristics in frequency range of 10 kHz-100 kHz between 22 and 100...
Open access
Research Article10.9734/PSIJ/2018/44368
Guy Hervé Hounguè, Basile Bruno Kounouhéwa, Mathias Adjimon Houékpohéha, Bernard Noukpo Tokpohozin & Vianou Irénée Madogni·Physical Science International Journal·2018
Wave energy recovery in coastal zones can provide mitigation of flooding and play a very important role in the protection of the coastline. Wave energy potential off the coast of Benin has been investigated from ECMWF ERA reanalysis (ERA40 + ERA-Interim). ERA data have been adjus...
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Research Article10.9734/PSIJ/2018/44226
The paper concerns the nanopowder high-speed, 104 – 109 s–1, compaction processes modelling by a two-dimensional granular dynamics method. Nanoparticles interaction, in addition to known contact laws, included dispersive attraction, the formation of a strong interparticle bonding...
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Research Article10.9734/PSIJ/2018/45057
In order to study the effect of mechanical-stress on the quartz filter output, based on the elasto-optical effect of quartz crystal, the relationship between berifringent difference of quratz plate and mechanical-stress is deduced, the experimental system is set up by using Ultra...
Open access
Research Article10.9734/PSIJ/2018/19858