126 publication(s) trouvée(s)
Article scientifique
First-Principles Investigation of Alkaline-Earth Metal Co-Doped Hexagonal WO₃ for Enhanced Near-Infrared Optical Response
The structural, thermodynamic, electronic, and optoelectronic properties of co-doped hexagonal tungsten trioxide (h-WO₃) are investigated using Density Functional Theory (DFT) …
Article scientifique
Digital Holographic Interferometry for Ethylene Glycol Quality Control
Digital holographic interferometry is a non-contact, full-field optical technique for quantifying sample-induced phase variations in transparent liquids. It offers a …
Article scientifique
Indoor Radon Concentrations and Associated Radiological Risk in Selected Buildings at SouthEastern Kenya University, Kenya
Radon is a naturally occurring radioactive gas and a major contributor to natural radiation exposure, with prolonged inhalation associated with …
Article scientifique
Occupational Radiation Dose and Ambient Dose Characterization in Selected Healthcare Facilities in Kitui County, Kenya
Radiation exposure during diagnostic radiology remains a critical occupational radiation safety concern as the global volume and complexity of medical …
Article scientifique
Integrated Aeromagnetic Structural Mapping and Magnetic Source Depth Estimation of the Kaduna Basement Complex, Northwestern Nigeria: Implications for Regional Tectonics and Mineral Exploration
This study presents an integrated aeromagnetic investigation of Kaduna State, northwestern Nigeria, to delineate subsurface structures and estimate magnetic source …
Article scientifique
Assessment of Groundwater Quality, Contamination Risk, and Hydrogeochemical Characteristics Around Okitipupa Dumpsites, Southwestern Nigeria
Groundwater contamination from unmanaged dumpsites threatens water quality and public health in many developing countries. This study evaluated the physicochemical …
Article scientifique
Formation Energy and Phonon Dispersion of Halogen-Doped Rutile TiO₂: First-Principles Investigation
This study presents a first-principles investigation of the formation energy and phonon dispersion of halogen-doped rutile TiO₂. Calculations were performed …
Article scientifique
Halide-Induced Band Gap Modulation in RbPbCl3-XBrX Perovskites: Insights from a First-Principles Study
First-principles calculations based on density functional theory (DFT) as implemented in Quantum ESPRESSO were used to systematically investigate the structural …
Article scientifique
First-principles Investigation of Structural, Electronic, Mechanical, Optical, and Thermodynamic Properties of Lead-Free KSrX3 (X = F, Cl, and Br) Halide Perovskites for UV Optoelectronic Applications
This study employed density functional theory (DFT) within Quantum ESPRESSO to investigate the structural, electronic, phonon, mechanical, optical, and thermodynamic …
Article scientifique
Risk Assessment and Uncertainty Analysis of Radon-222 Concentrations in Groundwater Within Abuja, Nigeria, Using Liquid Scintillation Counting
Radon-222 (222Rn) in groundwater is a potential source of internal radiation exposure through ingestion, particularly in regions where groundwater constitutes …
Article scientifique
Development and Validation of a MeasurementInformed MATLAB/Simulink Harmonic Propagation Model for a Practical 33 kV Distribution Network
This study developed and validated a measurement-informed MATLAB/Simulink harmonic propagation model for a practical 33 kV distribution network using the …
Article scientifique
An Offline-First Low-Cost Smart Home Automation System Using Bluetooth and Android-Based Voice Control for Resource-Constrained Environments
The widespread adoption of Internet of Things (IoT)-based smart home systems has led to increasing reliance on cloud-dependent architectures that …
Article scientifique
Crystallographic and Spectroscopic Analysis of Activated Carbon Derived from MicrowaveAssisted KOH Activation of Banana Peels
KOH-activated carbon was prepared from banana peel waste by microwave heating (800 W) for 10, 20, 30, and 40 min …
Article scientifique
Design and Construction of an Ultrasonic Level Measurement Device Using Arduino Uno
Accurate and reliable level monitoring is essential in many industrial and scientific applications, including water storage, oil and gas processing, …
Article scientifique
Gum Arabic-Assisted TiO₂ 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, …
Article scientifique
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 …
Article scientifique
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 …
Article scientifique
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 …
Article scientifique
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 …
Article scientifique
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 …
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