Articles
Peer-reviewed papers published in Physics Access.
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Energy Reliability and Its Implications for Translational Research Capacity in Nigeria’s Tertiary Institutions
This study investigated the implications of electricity reliability for translational research capacity in Nigerian tertiary institutions using a cross-sectional survey and quantitative laboratory energy assessment. Data...
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Gum Arabic-Assisted TiO? Photoanode Fabrication for Dye-Sensitized Solar Cells Sensitized with Natural Dye Extracted from Bicolor Sorghum
The stability and efficiency of dye-sensitized solar cells (DSSCs) are often limited by the degradation of key components, including dyes, electrolytes, and electrodes. This study investigates the effect of gum Arabic as...
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Morphological and Textural Characterization of Activated Carbon Derived from Microwave-Assisted KOH Activation of Banana Peels
Banana peel biomass was converted into activated carbon through microwave-assisted KOH activation at a constant microwave power of 800 W and a KOH/precursor mass ratio of 1:1, using activation times of 10, 20, 30, and 40...
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Evaluation of Radiological Health Hazard Indices of Natural Radioactivity in Vegetables from Irrigation Farms in Soba Local Government Area, Kaduna State, Nigeria
Natural radionuclides in agricultural products may contribute to long-term radiological health risks through dietary intake. This study assessed the activity concentrations of U-238, Th-232, and K-40 in vegetables cultiv...
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Measurement of Indoor Radon Concentration and Associated Health Risks in Selected Elementary Schools in Lafia, Nasarawa State, Nigeria
Indoor radon concentration was measured in selected elementary schools across Lafia, Nasarawa State, Nigeria, using passive diffusion cups fitted with CR-39 detectors. The rooms were selected based on varying natural ven...
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Assessment of Natural Radioactivity and Associated Radiological Risks in Cements Produced and Used as Building Materials in Malawi
This study assessed the natural radioactivity and associated radiological health risks of commercially available cement brands produced and distributed in Malawi to evaluate compliance with international radiation safety...
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Exploring Intermediate and Natural Inflation under a Nonminimal Derivative Coupling: The John-George Framework
Intermediate and natural inflation are investigated within a nonminimal derivative coupling scalar field model, namely the John–George framework. The derivative coupling introduces enhanced gravitational friction, modify...
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Performance Evaluation of a Thermo-luminescent Dosimetry System for Occupational Monitoring in Federal Teaching Hospital Katsina, Nigeria
Thermo-luminescent dosimeters (TLDs) are widely used for occupational radiation monitoring due to their sensitivity, reusability, and tissue equivalence. This study evaluates the performance of a TLD system deployed at t...
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Comparative Analysis of Classical Machine Learning and Deep Learning Architectures for Handwritten Digit Classification
Handwritten digit recognition remains a core problem in computer vision, with both classical machine learning (ML) and deep learning (DL) models widely applied but rarely compared under identical conditions. This study p...
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Effect of Deposition Time on the Optoelectronic Properties of CdS Thin Films Synthesized via Chemical Bath Deposition Technique
Cadmium sulphide (CdS) thin films were synthesized via chemical bath deposition (CBD) to investigate the influence of deposition time on their optoelectronic properties. The films were deposited at 80 °C for durations ra...
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Ab initio study of structural, electronic, and magnetic properties of pristine and Fe-doped Al2Si2O5(OH)4
First-principles calculations based on density functional theory (DFT) were employed to investigate the structural, electronic, and magnetic properties of pristine and single Fe-doped Al2Si2O5(OH)4 (kaolinite). All calcu...
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Comparative Electrothermal Characterization of Organic Light-Emitting Diodes Using Thermocouple and Infrared Thermography
This paper reports a comparative experimental study on the thermal behavior of organic lightemitting diodes (OLEDs) under varying electrical driving conditions. Temperature distributions were simultaneously measured at b...
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Bandwidth Enhancement in White LED Visible Light Communication Systems Using Blue Optical Filtering and Multi-Stage Equalization
Visible Light Communication (VLC) enables short-range high-speed data transmission using white light-emitting diodes (LEDs) for both illumination and communication. However, phosphor-converted white LEDs suffer from limi...
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Long-Term Characterization of Vertical Radio Refractivity Gradients and Tropospheric Propagation Conditions over North-Central Nigeria Using ERA5 Reanalysis Data
This study presents a comprehensive long-term evaluation of vertical radio refractivity and refractivity gradients over selected locations in North-Central Nigeria. Forty-one years (1980– 2020) of meteorological data obt...
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High-Efficiency Cs2TiBr6 Lead-Free Perovskite Solar Cell Enabled by All-inorganic CZTS/NiO Double Hole Transport Layer: A Numerical Simulation Study
Ti-based Cs?TiBr? double-halide perovskites are promising for optoelectronic and renewable energy applications, offering a non-toxic alternative to Pb-based perovskite solar cells (PSCs). This study uses SCAPS-1D to simu...
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Dopant-Induced Modulation of Structural and Magnetic Properties in Strontium Ferrite Perovskite Nanomaterials
This research centres on enhancing the magnetic properties of Europium (Eu) doped Strontium Ferrite (SrFeO3) nanomaterials, synthesized successfully using the solution combustion method. The study explores doping concent...
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Emerging Renewable Polymer Platforms for Biomedical Interfaces, Bioadhesives, and 3D Printing
The traditional polymer industry, which depends heavily on fossil resources, faces increasing challenges due to resource depletion, environmental damage, and sustainability issues linked to petroleum-based materials. In...
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Geothermal Resources Exploration in Kerang Highland, Jos Plateau, Nigeria Using Aeromagnetic and Aero-Radiometric Data
This study investigates the geothermal energy potential of the Kerang Highland, Jos Plateau, Nigeria, using high-resolution aeromagnetic and aero-radiometric datasets: Sheet 168 (Naraguta), 169 (Majuju), 189 (Laura), and...
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This article is temporarily suspended pending administrative compliance: A Hodge Theory-Driven Quantum Mapping Between Calabi-Yau Manifolds and Nuclear Topology: First-Principles Derivation and Experimental Verification
Article Status: Temporarily Suspended This article has been temporarily suspended by the publisher due to pending administrative requirements related to the publication process. The suspension is not related to the sci...
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Design, Performance, and Cost Optimization of a 10.2 kWp Grid-Tied Hybrid Photovoltaic System in Owerri, Nigeria
This study presents the design and techno-economic optimization of a 10.2 kWp grid-tied hybrid photovoltaic (PV) system for residential applications in Owerri, Nigeria. The objective is to develop a reliable and cost-eff...