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All published articles 700

The Role of Nanotechnology on Photovoltaic Cells

Pigweh Isa Amos · Physical Science International Journal · 2017

Advances in the field of Nanotechnology has shown great promise to enhance the photoconversion of photovoltaic cells and hence improved electrical output. This breakthrough in terms of efficiency seems meager when compared to the crystalline silicon solar cells. However, Quantum...

Open access Research Article 10.9734/PSIJ/2017/32757

Green’s Function (GF) for the Two Dimensional (2D) Time Dependent Inhomogeneous Wave Equation

Akpata Erhieyovwe, Umukoro Judith & Enaibe A. Edison · Physical Science International Journal · 2017

Interference effect that occurs when two or more waves overlap or intersect is a common phenomenon in physical wave mechanics. A carrier wave as applied in this study describes the resultant of the interference of a parasitic wave with a host wave. A carrier wave in this wise, is...

Open access Research Article 10.9734/PSIJ/2017/31687

Natural Radioactivity Levels and Radiological Risk Assessment of Surface Water from Coastal Communities of Ndokwa East, Delta State, Nigeria

C. P. Ononugbo & C. D. Anyalebechi · Physical Science International Journal · 2017

Aims: The aim of this study is to measure the natural radioactivity levels in surface water from coastal communities in order to assess the radiological health hazards associated with the use of such water. Study Design: This study was purely an experimental work. Place and Durat...

Open access Research Article 10.9734/PSIJ/2017/31782

Thermal Diffusivity Variations at Ministry of Agriculture Akure South, Ondo State, South–West Nigeria

K. D. Adedayo, J. S. Ojo & I. E. Okoroafor · Physical Science International Journal · 2017

Thermal diffusivity variations of different soil types in a tropical location, Akure, Nigeria at three different depths over dry and wet seasons are presented. The time lag method was used to estimate the thermal diffusivity (D) of the experimental site using the hourly and mean...

Open access Research Article 10.9734/PSIJ/2017/24135

Spatial Variation Modeling of Geothermal Gradient and Heat Flow in Eastern Parts of Niger Delta Sedimentary Basin, Nigeria

Emujakporue Godwin Omokenu & L. I. Nwosu · Physical Science International Journal · 2017

The aims of this research are to carry out statistical and geostatistical analysis of geothermal data and to determine the spatial variation of geothermal gradient and heat flow of parts of Niger delta sedimentary basin. Corrected Bottom hole temperatures from 18 deep oil wells w...

Open access Research Article 10.9734/PSIJ/2017/31581

The Radiological Impact of a Municipal Solid Waste Dumpsite on Soil and Groundwater Using Gamma Ray Spectroscopy

G. O. Itota & A. O. Balogun · Physical Science International Journal · 2017

The radiological impact of a municipal solid waste dumpsite on soil and groundwater in Port Harcourt municipality was investigated by gamma-ray spectroscopy. The objective of the study was to evaluate the radioactivity concentrations in soil and groundwater within the landfill. R...

Open access Research Article 10.9734/PSIJ/2017/28074

Design Analysis and Implementation of A 0.5 KVA Uninterruptible Power Stabilizer

Aghanwa Sunny, S. O. Ezeonu & S. O. Ezennaya · Physical Science International Journal · 2017

This paper presents design analysis and implementation of a 0.5 KVA uninterruptible electronic power stabilizer (UPSz). Poor and instability of power supply delivery in Nigeria necessitated the need for a device that can stabilize voltage, protect equipment from damages and also...

Open access Research Article 10.9734/PSIJ/2017/31535

Characterization of Worst Month Statistics for Satellite-Earth Links Performance in Tropical Locations

O. M. Durodola, J. S. Ojo & M. O. Ajewole · Physical Science International Journal · 2017

The increasing development in satellite technology has brought about several novel mobile satellite services and applications. Consequently, there is a pressing demand for seamless data transfer and accessibility to satellite-earth microwave links in SHF/EHF frequency bands. Howe...

Open access Research Article 10.9734/PSIJ/2017/31899

Study of Sunspot Time Series Using Wavelet-based Multifractal Analysis during Solar Cycle 23 and Ascending Phase of Cycle 24

S. K. Kasde, D. K. Sondhiya & A. K. Gwal · Physical Science International Journal · 2017

Wavelet based Multifractal analysis techniques provides a sophisticated statistical characterization of many complex dynamical phenomena related with Sun and its environment. In this work multifractal property of the Sunspot number time series, has been analyzed during Solar cycl...

Open access Research Article 10.9734/PSIJ/2017/30319

Radioactivity Levels in Maize from High Background Radiation Areas and Dose Estimates for the Public in Tanzania

Leonid L. Nkuba & Yesaya Y. Sungita · Physical Science International Journal · 2017

Natural radioactivity levels in maize which is one of the staple foods in various regions in Tanzania have been studied. The radioactivity concentration of 238U, 232Th and 40K were determined using γ ray spectrometry employing HPGe detector of relative efficiency of 51%. The aver...

Open access Research Article 10.9734/PSIJ/2017/31697

Computer Modeling of Properties of Superparticles

Obikhod Tetiana · Physical Science International Journal · 2017

The properties of superparticles within Constrained Minimal Supersymmetric Standard Model (CMSSM) using experimental data obtained at the LHC were studied. The first run of the LHC made it possible the selection of experimental data for purposeful SUSY searches at energies of 13...

Open access Research Article 10.9734/PSIJ/2017/31669

Dielectric Properties of 1-ethyl-3-methyl-imidazolium Tetrafluoroborate (EMIM-BF4) Using Cole-Cole Relaxation Model

T. J. Ikyumbur, E. N. Asagha, E. C. Hemba & J. A. Bash · Physical Science International Journal · 2017

The Cole-Cole relaxation equations were derived from the Debye equation. The dielectric constant E’ and loss factor E” of EMIM-BF4 were fitted using the derived equations at temperature range of 5°C to 65°C and frequency range of 0.1GHz to 10GHz. The result obtained shows that th...

Open access Research Article 10.9734/PSIJ/2017/31315