Groundwater is the principal source of water for domestic purposes in many parts of Eket Metropolis, Akwa Ibom State, Nigeria, and its quality is therefore relevant to public health. This study presents a health risk assessment of heavy metals in groundwater used for domestic pur...
Open access
Research Article10.9734/jerr/2026/v28i81980
The present study investigates the magnetohydrodynamic (MHD) mixed convection flow and heat transfer characteristics of an Eyring-Powell nanofluid over a cone in the presence of nonlinear thermal buoyancy, thermal radiation, Brownian motion, thermophoresis, temperature-dependent...
Open access
Research Article10.9734/jerr/2026/v28i81981
This study addresses voltage instability in developing-economy transmission grids by determining the optimal placement and sizing of Static Var Compensators (SVCs) on the Nigerian 330 kV, 50-bus network. Although metaheuristic techniques have been widely applied to FACTS device a...
Open access
Research Article10.9734/jerr/2026/v28i81976
Aims/Objectives: This study aimed to develop a multiparametric Model Predictive Control (mp-MPC) framework for the thermal regulation of a single-zone space conditioned by a window-type air-conditioning (AC) unit. The framework shifts the optimisation burden offline so that an ex...
Open access
Research Article10.9734/jerr/2026/v28i81977
Ginger is highly perishable because of its high moisture content, and conventional sun drying is often constrained by variable weather conditions, contamination, and prolonged drying periods. Indirect forced-convection photovoltaic/thermal solar dryers offer a promising approach...
Open access
Research Article10.9734/jerr/2026/v28i81978
Engineering–procurement–construction (EPC) general contracting has become an important instrument in China’s effort to reorganise project delivery around integrated responsibility for design, procurement and construction. Its expansion has been encouraged by national rules that c...
Open access
Research Article10.9734/jerr/2026/v28i81975
MXenes are solution-processable two-dimensional carbides and nitrides whose macroscopic performance is often attributed to composition and surface terminations, while the lateral dimensions of individual sheets are treated as a secondary processing detail. This review critically...
Open access
Research Article10.9734/jerr/2026/v28i81973
Nigeria's cement, iron and steel, and chemical industries account for a substantial share of the country's industrial energy use. This study applies the Low Emissions Analysis Platform (LEAP) to project industrial energy demand and greenhouse gas emissions to 2060 under four scen...
Open access
Research Article10.9734/jerr/2026/v28i81974
Flooding remains one of the most devastating natural hazards in Bangladesh, particularly in the northern riverine regions, where transboundary water-management issues exacerbate vulnerability. This study presents a proof-of-concept computational fluid dynamics (CFD) analysis cond...
Open access
Research Article10.9734/jerr/2026/v28i81972
Recycled aggregate concrete (RAC) offers a route to reducing the extraction of natural aggregate and the landfilling of construction and demolition waste, yet its uptake in durability-critical applications remains constrained by uncertainty over long-term performance. The behavio...
Open access
Research Article10.9734/jerr/2026/v28i81970
Aims: This research aims to advance industrial glass manufacturing by implementing a next-generation autonomous control architecture. The study focuses on maximising energy efficiency and product quality by integrating Digital Twin technology, Deep Reinforcement Learning (DRL), a...
Open access
Research Article10.9734/jerr/2026/v28i81971
Md. Rejoan Chowdhury, S. M. Saif Hasan Nirob, Rafi Ahammed Shuva, Afroja Akter, Md. Habibullah, Md. Shaon Akon, Golam Safayat & Md. Fahim Hossain·Journal of Engineering Research and Reports·2026
The use of recycled aggregate can reduce dependence on natural stone, while steel fibres may improve the mechanical performance of concrete containing recycled materials. This study evaluated the workability, compressive strength, and splitting tensile strength of concrete incorp...
Open access
Research Article10.9734/jerr/2026/v28i71969
Osita Miracle Nwakeze, Ugoji Frank-Godric Chidubem, Nwafor Anthony Chigozie, Naveed Uddin Mohammed, Oboti Nwamaka Peace & Ogochukwu Patience Okechukwu·Journal of Engineering Research and Reports·2026
The growing demand for smarter and more dependable surveillance systems has driven the integration of advanced technologies capable of providing real-time situational awareness and accurate anomaly detection. Conventional Closed-Circuit Television (CCTV) systems are typically con...
Open access
Research Article10.9734/jerr/2026/v28i71968
Hybrid power systems are increasingly used to improve electricity reliability in Nigerian industrial areas, but their site-level environmental implications remain insufficiently documented. This study evaluates the environmental impacts of hybrid power generation systems in the i...
Open access
Research Article10.9734/jerr/2026/v28i71967
This study evaluated the influence of coarse aggregate type on the compressive strength of concrete, with particular emphasis on granite and locally sourced gravel. Concrete performance is largely governed by the properties of its constituent materials, among which coarse aggrega...
Open access
Research Article10.9734/jerr/2026/v28i71965