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Author

A. A. Alfa

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3 papers indexed here

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Open access Oct 2026

A Secure Face–Fingerprint Dual-Biometric Staff Attendance System for Confluence University of Science and Technology, Osara

The paper presents the design, implementation, and evaluation of a secure dual-biometric staff attendance system for Confluence University of Science and Technology (CUSTECH), Osara. The methodology combined biometric acquisition and preprocessing, pretrained MobileNetV2, ResNet-50, and ViT-B/16 feature extractors,  no...

A. A. Alfa, E. Salami, Kharimah Bimbola Ahmed et al. · 0 citations
Sep 2026

Time-dependent Axial Fluid Flow in an Annulus: A Semi-Analytical Approach

This study presents a semi-analytical solution for the start-up pressure-driven axial flow of an incompressible Newtonian fluid between two stationary concentric cylinders. The governing unsteady momentum equation is transformed using the Laplace technique, yielding closed-form expressions for the velocity and wall-she...

Jibrin Danjuma Yahaya, B. Michael, A. A. Alfa et al. · 0 citations
Open access Sep 2026

NFTcate: A Soulbound Non-Fungible Token Decentralized User-Centered Certificate Verification System

Many countries, with emphasis on Nigeria, face a critical challenge with the undermining of educational systems and graduate qualification credibility. Popular physical and hardcopy-based certificates linked to centralized databases are vulnerable to fraud and inefficiency while also limiting the accessibility of these...

Khadija S. Ladan, O. Olaniyi, A. A. Alfa et al. · 0 citations

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