International Journal of
Physical Sciences

  • Abbreviation: Int. J. Phys. Sci.
  • Language: English
  • ISSN: 1992-1950
  • DOI: 10.5897/IJPS
  • Start Year: 2006
  • Published Articles: 2570

Table of Content: January-March, 2023; 18(1)

January 2023

Design of a low-cost electronic board for monitoring photovoltaic systems

The development of renewable energies is essential to meet the energy demand which is growing year after year. Africa has a strong solar potential which is, however, little exploited. The development of solar photovoltaic (PV) energy will be more favored with the democratization of performance monitoring and characterization tools for PV systems. Monitoring systems are very important because they allow the monitoring of...

Author(s): Pape Alioune Dia and Ababacar Ndiaye

January 2023

Performance comparison of diversity techniques with Addictive White Gaussian Channel (AWGC) in free space optical communication (FSO) under atmospheric turbulence scenario

The spatial diversity techniques are broken down and explained systematically along with its combination which includes Maximum Ratio Combining (MRC), Equal Gain Combining (EGC) and Simple Selection Combining (SC) under the influence of atmospheric-induced turbulence fading in Free Space Optical (FSO) communication. Diversity is a technique used to prevent or reduce multipath. Multipath is a phenomenon describing...

Author(s): Ayeni O. O., Ojo J. S., Owolawi P. A. and Ajewole M. O.

February 2023

Indoor ionizing radiation measurement in different departments of the Federal University of Technology Owerri

The indoor background ionizing radiation of various offices of the various departments in Federal University of Technology, Owerri (FUTO) was estimated in this study. This was conducted using a well calibrated digital Geiger - Muller Counter (GCA - 04W). The highest value measured was 0.0873 ± 0.1432 µSv/h while the lowest value was 0.0006 ± 0.0001 µSv/h with an average value of 0.0052 ±...

Author(s): Chinaza C. Abara, Dominic  D. O. Eya, Mbamara. U.S. and Chijioke M. Amakom  

February 2023

Using vertical electrical sounding and 2D resistivity tomography to investigate Osogbo central waste dumpsite, Osun State, Nigeria

The Osogbo central solid waste dumpsite in Osun State, Nigeria falls within the Ilesha Schist Belt, southwestern basement complex of Nigeria. Thirty-three (33) Vertical Electric Sounding (VES), and 2-D Electric Resistivity Tomography (ERT) data were acquired across various locations in the study area using ABEM Terrameter SAS 300, respectively. Schlumberger configuration with a maximum spread length of 100 m, for the...

Author(s): Chukwudi C. Ezeh and Shukwunweizu M. A. Maike  

March 2023

A mathematical model development to investigate the impact of key parameters on the generated voltage hysteresis of silicon anode based lithium half cells

Lithium-ion batteries are widely used in various energy storage systems. In this article, a physics-based mathematical model of silicon micro-particle (SiMP) anode is developed to identify the principal reasons of voltage hysteresis occurrence during lithiation and delithiation battery cycling of silicon (Si) anode-based lithium half cells. Firstly, lithium diffusion, reaction kinetics, thermodynamics and mechanical...

Author(s): Al-Mustasin Abir Hossain

March 2023

Mannheim partner curves in the special linear group

In this study, we state some basic results about the geometry of the special linear group SL(2,R), seen as a subset of  in terms of the left invariant fields, such as bracketing, Levi Civita connection ∇ and Riemann curvature tensor R, we give some basic theorems for Mannheim partner curves  in the special linear group. We also find the relations between the curvatures and torsions of these...

Author(s): Thiago A. DE A. Mendonça  

March 2023

Study of diffusion processes in contact areas of thermocouples with metals

Diffusion processes on the contact areas of the metal-solder-semiconductor system are experimentally studied in this work. Diffusion coefficients, activation energies and pre-exponential factors in samples commutated with solders based on Pb-Sb are determined. It has been established that lead-based solder has a significantly higher inertness to thermoelectric materials. The nickel-phosphorus coating was coated with a...

Author(s): K. E. Onarkulov and T. M. Azimov