Reliable knowledge of local meteorological variability is a prerequisite for technically sound siting and grid integration of a utility-scale solar photovoltaic (PV) farm. This study statistically analysed eleven years (2015–2025; N = 132 monthly observations) of rainfall amount,...
Open access
Research Article10.9734/psij/2026/v30i5977
Sanda Yusuf Sadau, Ishaya Iliyasu, Adelowo A. A., Sunday Sarki Habila, Yusuf Umar, Gada Sunday Samson, Atipo Kolawole M. & Ojo Emmanuel O.·Physical Science International Journal·2026
Decades of tin extraction on the Jos Plateau have left behind heavily reworked ground, including open pits, spoil heaps and slurry deposits, much of which has gradually been absorbed back into local farming. This paper re-examines a field investigation of that reclamation process...
Open access
Research Article10.9734/psij/2026/v30i5973
Olasoji I. Adekoya, Moradeyo A. Adeniji, Daudu F. Azumi, Yusuf A. Sofiyat, Mohammed M. Beloved, Tinuoye A. Semilore & Akinboye B. Rukayat·Physical Science International Journal·2026
A post-commissioning radiological assessment was conducted to evaluate the radiological status of soil and water in three host communities, Idaso, Ilege, and Mobido, located around the Dangote Petroleum Refinery in Ibeju-Lekki, Lagos, Nigeria. Seven composite soil samples and thr...
Open access
Research Article10.9734/psij/2026/v30i5974
Sanda Yusuf Sadau, Ishaya Iliyasu, M. Alpha, Muhammad Lawal, Mubarak Mu’azu Gambo, Gada Sunday Samson & Oyadiran Wuyi Jonathan·Physical Science International Journal·2026
Petroleum exploration and production can introduce potentially toxic metals into the soils and water bodies of host communities, with consequences for both ecosystem integrity and human exposure. This study assessed the concentrations and distribution of ten heavy metals: Ni, Cr,...
Open access
Research Article10.9734/psij/2026/v30i5975
This study evaluated selected correlation models for estimating daytime profiles of global solar radiation on a horizontal surface and ambient temperature at a measurement site in Ouagadougou, Burkina Faso. Experimental data were collected using a pyranometer, a K-type thermocoup...
Open access
Research Article10.9734/psij/2026/v30i5976
Access to clean and affordable cooking energy remains a challenge in developing regions, particularly in sub-Saharan Africa, where traditional biomass fuels are widely used and are associated with environmental and health concerns. Solar cooking provides a renewable alternative;...
Open access
Research Article10.9734/psij/2026/v30i5972
Sanda Yusuf Sadau, Ishaya Iliyasu, M. Ndawashi, M. Alpha, Sunday H. Sarki, Tina Abimbola A. & Oyadiran Wuyi Jonathan·Physical Science International Journal·2026
The total amount of a potentially toxic element in soil, on its own, provides limited information about its mobility or bioavailability. This paper re-examines the geochemical partitioning, extractability and environmental status of lead (Pb), cadmium (Cd) and zinc (Zn) in agricu...
Open access
Research Article10.9734/psij/2026/v30i5971
Low-cost acoustic monitoring can support condition-related data collection for hydropower generators where commercial instruments may be costly or difficult to deploy. This study developed an acoustic acquisition and monitoring arrangement using a KY-038 sound sensor, a parabolic...
Open access
Research Article10.9734/psij/2026/v30i5970
Aims: The study aims to synthesise phase change material (PCM) classification and building-envelope integration techniques relevant to hot, arid climates, and to carry out a comparative techno-economic and environmental assessment of three candidate PCMs (a paraffin, a hydrated s...
Open access
Research Article10.9734/psij/2026/v30i5969
Magnetohydrodynamic (MHD) nanofluids have emerged as promising working fluids for advanced thermal management systems owing to their enhanced heat transfer capability and controllable transport characteristics under external magnetic fields. This study presents an analytical inve...
Open access
Research Article10.9734/psij/2026/v30i5968
This study presents a cycle-to-date classification and geoeffectiveness analysis of the interplanetary drivers of geomagnetic storms during Solar Cycle 25 (SC25), from December 2019 to 24 June 2026. Hourly OMNI solar-wind plasma and interplanetary magnetic-field data were analyse...
Open access
Research Article10.9734/psij/2026/v30i5967
Manual operation of barriers at access points can increase operator workload and may delay vehicular movement. This study designed, constructed, and evaluated a remote-controlled gate cross bar intended to provide a low-cost wireless alternative for automated access control. The...
Open access
Research Article10.9734/psij/2026/v30i5966
Ozoemelam Onyebuchi, M. Okehie Baslem, O. Ofoegbu Christian, R. N. Abali, I. Olua Rita & C. Maduenyi Agwuncha·Physical Science International Journal·2026
This study quantifies the statistical relationships among four meteorological variables: sunshine duration, rainfall amount, rainfall rate, and relative humidity using six years of monthly observational data (2015–2020, n = 72) sourced from the Nigerian Meteorological Agency (NiM...
Open access
Research Article10.9734/psij/2026/v30i4965
Many copper alloys suffer from weaknesses in certain mechanical properties, hindering their suitability for various industrial applications. Copper powder with 4% iron nanoparticles added as a constant-ratio reinforcement material was used, along with nano-alumina at varying rein...
Open access
Research Article10.9734/psij/2026/v30i4964
The increasing deployment of mobile communication infrastructure has raised public concern regarding exposure to radiofrequency (RF) electromagnetic fields around base transceiver stations (BTSs). This study evaluated electromagnetic field exposure around a BTS in Owa-Eke, Delta...
Open access
Research Article10.9734/psij/2026/v30i4963