The rising phase of Solar Cycle 25 has produced several extreme space-weather episodes driven by explosive magnetic reconnection in the solar atmosphere. This study presents an integrated, multi-parameter analysis of the eruptive sequence of 9–14 November 2025 originating from th...
Open access
Research Article10.9734/psij/2026/v30i4961
This study investigates crustal structure beneath the Nsukka, Ife, and Kaduna seismic stations in Nigeria using waveform data from the 11 September 2009 earthquake recorded by the national seismic network. The work applies body-wave phase modelling to examine P- and S-wave propag...
Open access
Research Article10.9734/psij/2026/v30i4962
Emmanuel Sidwaya Sawadogo, Salmwendé Eloi Tiendrebeogo, Guy Christian Tubreoumya, André Luc Batiana, Windnigda Zoungrana, Téré Dabilgou, Jacques Nébié, Oumar Bailou, Alfa Oumar Dissa & Antoine Béré·Physical Science International Journal·2026
This study presents the development and experimental validation of a coupled heat and mass transfer model for a dual-collector indirect solar dryer based on the energy balance of a representative section of the system. The governing equations describe the simultaneous evolution o...
Open access
Research Article10.9734/psij/2026/v30i4960
This study evaluated heavy metal pollution levels in agricultural soils around the Kalsaka gold mine in Burkina Faso. Sixteen surface soil samples were collected from agricultural areas near the former mining site and analysed for chromium, nickel, copper, zinc, arsenic, mercury,...
Open access
Research Article10.9734/psij/2026/v30i4959
This study examines the statistical relationship between solar flare classes and the occurrence of associated coronal mass ejections (CMEs) during solar cycles 23 and 24, covering the period from 1 January 1996 to 31 December 2019. The analysis considers CME angular width and spe...
Open access
Research Article10.9734/psij/2026/v30i4956
Cassava processing is commonly performed with manual tools such as knives, machetes and mortars, making the operation laborious and time-consuming. Mechanised processing units can reduce this workload, but their electrical requirements must be characterised to support efficient o...
Open access
Research Article10.9734/psij/2026/v30i4957
This study examines the combined influence of magnetic field and operating temperature on charge-carrier transport parameters in a polycrystalline silicon radial junction solar cell. The analysis focuses on carrier mobility, diffusion coefficient, and diffusion length, which are...
Open access
Research Article10.9734/psij/2026/v30i4958
Ogunlade-Anibasa, G. O., J. I. Ajanya, A. A. Jerome, E. I. Otteh, J. Daudu, O. S. Aniki, B. E. Anda, P. T. Ameh, M. V. Aregbesola & S. A. Jayden·Physical Science International Journal·2026
Potentially toxic elements (PTEs) in food products represent a public health concern because of their persistence, bioaccumulation potential and adverse effects. This study assessed the contamination levels and potential health risks of selected PTEs in date fruits (Phoenix dacty...
Open access
Research Article10.9734/psij/2026/v30i4955
Solar wind–magnetosphere coupling governs the transfer of energy from the solar wind into the Earth's magnetosphere and plays a fundamental role in space weather processes. This study investigates the occurrence of different geomagnetic activity classes defined by Legrand & S...
Open access
Research Article10.9734/psij/2026/v30i4954
The corrosion inhibition performance of native starch (NS), alkaline-modified starch (MS), polyethylene glycol (PEG), and their blends on mild steel in acidic medium was evaluated using weight loss measurements over 120 h. Single inhibitors exhibited moderate inhibition efficienc...
Open access
Research Article10.9734/psij/2026/v30i4953
Intrinsically conducting polymers (ICPs), most notably polyaniline (PANI), have fundamentally bridged the gap between conventional insulating plastics and metallic conductors. However, the commercial and industrial integration of PANI remains hindered by its rigid aromatic backbo...
Open access
Research Article10.9734/psij/2026/v30i3951
Electromagnetic wave propagation is fundamental to AM broadcasting, where signal quality depends on field strength influenced by frequency, terrain, atmospheric conditions, and antenna design. This study addresses the problem of limited coverage and signal degradation in medium-w...
Open access
Research Article10.9734/psij/2026/v30i3952
Ground clutter remains a significant challenge in radar systems because low-frequency reflections from stationary objects can mask or distort high-frequency target signals, thereby reducing detection accuracy and overall system performance. This study presents the comparative des...
Open access
Research Article10.9734/psij/2026/v30i3950
This study presents a spectral collocation analysis of entropy generation in a laminar boundary layer flow with coupled heat and mass transfer. The model considers a steady, two-dimensional, incompressible, and Newtonian flow over a flat plate with constant thermophysical propert...
Open access
Research Article10.9734/psij/2026/v30i3949
Background: Understanding subsoil corrosivity is critical in foundation and infrastructure design, particularly for projects involving buried metallic structures such as pipelines, storage tanks, foundation reinforcements, and cathodic protection systems. Despite the extensive ap...
Open access
Research Article10.9734/psij/2026/v30i3948