https://journals.abuad.edu.ng/index.php/ajeas/issue/feedABUAD Journal of Engineering and Applied Sciences2025-06-30T00:00:00+00:00Engr. Ms. M. G. Omofoyewaajeas@abuad.edu.ngOpen Journal Systems<p style="text-align: justify;">ABUAD Journal of Engineering and Applied Sciences (AJEAS) is a peer-reviewed open access journal, which is domiciled in Afe Babalola University, Ado-Ekiti (ABUAD), Ekiti State, Nigeria. AJEAS is a peer-reviewed journal with a high impact factor. All papers are subject to rigorous peer-review by experts in the field. Papers that are accepted for publication are freely available online with permanent web identifier. The abstracts will be submitted for indexing in major academic databases. <a title="About the journal" href="https://journals.abuad.edu.ng/index.php/ajeas/about">Readmore</a></p>https://journals.abuad.edu.ng/index.php/ajeas/article/view/1223Silver Nanoparticles Recovery from X-ray Films using Humic and Fulvic Acids: Synthesis and Antimicrobial Applications2025-02-14T14:35:52+00:00Owolabi Mutolib BANKOLEowolabi.bankole@aaua.edu.ngTemitope Michael ALADEJANAaladejana684@gmail.comJulius Gbenga OMOSEBIomosebi_jg@fedpolyado.edu.ngAbiola Olanike ADESINAabiola.adesina@aaua.edu.ngSegun Esan OLASENIlincolnolaseni@yahoo.com<p>The current study investigates the recovery and synthesis of silver nanoparticles (AgNPs) from used x-ray photographic films as a sustainable and cost-effective strategy for scalable production. Silver was extracted using an alkaline NaOH solution and stabilised with humic (HA) and fulvic (FA) acids, demonstrating a green chemistry approach that enhances nanoparticle stability and biocompatibility. FTIR analysis confirmed the incorporation of functional groups for AgNP stabilisation, SEM revealed well-dispersed nanoparticles, and XRD verified their crystalline structure. The HA- and FA-stabilised AgNPs showed superior antimicrobial activity compared to pure AgNPs, with inhibition zones of 35 and 39 mm against Escherichia coli and Streptococcus pneumonia, respectively. The antibacterial effects of the synthesised particles were found to be concentration-dependent. This dual approach of waste photographic film valorisation and in situ nanoparticle stabilisation offers an eco-friendly pathway for functional AgNP production with potential applications in medical and environmental fields.</p>2025-06-30T00:00:00+00:00Copyright (c) 2025 ABUAD Journal of Engineering and Applied Scienceshttps://journals.abuad.edu.ng/index.php/ajeas/article/view/1218Allocation of Power Losses with Distributed Generation using a Contribution of Generator to Load Pairs Technique in a Distribution System2025-02-13T08:49:37+00:00Ebenezer Abiodun OMOTOSOebenezerabbey@gmail.comDavid Olugbenga ABORISADEdoaborisade@gmail.comIsaiah Gbadegesin ADEBAYOigadeyo@lautech.edu.ngSamson Oladayo AYANLADEayanlade.oladayo@oouagoiwoye.edu.ng<p>Nigeria's power sector lacks a structured approach to allocating active power losses, impacting cost fairness and operational efficiency. The contribution of the generator-load pairs technique effectively ensures equitable loss allocation in power networks. This study applied the technique in a Nigerian distribution network integrated with distributed generation (DG) to enhance transparency in loss allocation, using the Imalefalafia 32-bus network as a case study. Power flow analysis was conducted using the backward/forward sweep method to solve the network’s power flow problem. The adopted loss allocation technique was then used to allocate active power losses among generators and loads based on their contributions. Results demonstrated accurate and transparent loss allocation, ensuring fairness. The findings confirm the technique’s suitability for Nigeria’s distribution network and its potential to enhance efficiency in DG-integrated systems. This study introduces an effective loss allocation framework tailored to Nigeria’s electricity network, providing a basis for fair active loss-sharing mechanisms.</p>2025-06-30T00:00:00+00:00Copyright (c) 2025 ABUAD Journal of Engineering and Applied Sciences