Pilgrimage destinations can experience concentrated and variable visitor flows that complicate urban electricity planning. Ayodhya, Uttar Pradesh, provides a pertinent setting because rapid growth in reported visits has coincided with its development as a model solar city. This d...
Open access
Research Article10.9734/psij/2026/v30i6996
This study investigates the thermal-hydraulic characteristics of magnetohydrodynamic (MHD) silver nanofluid flow over a cylindrical surface under the combined effects of thermal radiation and chemical reaction. Effective thermophysical property correlations are incorporated to de...
Open access
Research Article10.9734/psij/2026/v30i6995
Extreme rainfall events leading to floods are among the most severe threats facing communities today in the Lake Tanganyika Basin. This study analyses the spatial and temporal distribution of extreme wet events, detects their trends, and predicts the risk of rare wet conditions t...
Open access
Research Article10.9734/psij/2026/v30i6994
Urban environmental noise is insufficiently characterized in many secondary cities in sub-Saharan Africa. This exploratory study characterizes short-duration urban sound recordings from five neighborhoods of Duékoué, Côte d’Ivoire (Kokoman, Antenne, Résidence, Belleville, and Gui...
Open access
Research Article10.9734/psij/2026/v30i6993
Sanda Yusuf Sadau, Ishaya Iliyasu, Atipo Kolawole M., Ojo Emmanuel O., Obonyilo Edache Gabriel, Tine Abimbola Adeniji, Gada Sunday Samson & Oyadiran Wuyi Jonathan·Physical Science International Journal·2026
Petroleum exploration and production can alter the geochemical quality of surrounding soils and water through the introduction and redistribution of potentially toxic metals. This study assessed the degree of heavy-metal pollution and associated ecological risk in soils and water...
Open access
Research Article10.9734/psij/2026/v30i6992
Background: Climate variability can alter air temperature and rainfall characteristics, with important implications for rainfall erosivity and associated soil degradation. However, the relationship between long-term temperature trends and rainfall erosivity remains insufficiently...
Open access
Research Article10.9734/psij/2026/v30i5991
Yaya Dembélé, Souleymane Sanogo, Abdoul Latif Bonkaney, Safiatou Mariko, Navneet Kumar, Bernhard Tischbein & Saidou Madougou·Physical Science International Journal·2026
Aims: The study investigates the operational performance of a utility-scale grid-connected photovoltaic (PV) system operating under hot semi-arid conditions of Mali. Study Design: The analysis was based on key performance indicators: system efficiency, performance ratio (PR), cap...
Open access
Research Article10.9734/psij/2026/v30i5990
Reliable electricity is essential for poultry-house lighting, ventilation, water supply, refrigeration, and incubation, particularly in rural areas with limited or unstable grid access. This study assessed the solar resource at Kassiapleu, near Man in western Côte d’Ivoire, and s...
Open access
Research Article10.9734/psij/2026/v30i5988
Vinci De Dieu Bokoyo Barandja, Thierry Serge Gbembongo, Magloire Bienvenu Pakouzou, Mamoudou Saria, Ramatou Saré, Clautaire Mwebi Ekengoue, Pankaj Kumar, Venant Sorel Chara-Dackou, Christian Kenfack-Sadem, Martial Zoungrana & Issa Zerbo·Physical Science International Journal·2026
Photovoltaic (PV) generators often require module interconnection to achieve target voltage and current, but non-identical modules can introduce electrical mismatch. The use of photovoltaic (PV) installations is becoming increasingly widespread in electricity generation. The perf...
Open access
Research Article10.9734/psij/2026/v30i5989
Total electron content (TEC) varies with solar activity, season, local time, and geomagnetic conditions. This study compares hourly TEC estimates from IRI-2020 and NeQuick2 at BF01, Ouagadougou (12°37′N, 1°51′W), for selected days of recurrent geomagnetic activity during solar cy...
Open access
Research Article10.9734/psij/2026/v30i5987