Aims: This study aimed to design, develop, and assess a Raspberry Pi-based Internet of Things (IoT) Smart Laboratory Trainer Kit incorporating flame and gas sensors, RFID authentication, an I2C LCD display, a relay-operated solenoid lock, and Telegram Bot communication to support...
Open access
Research Article10.9734/jerr/2026/v28i71966
Yenagoa Metropolis in Bayelsa State, Nigeria, lies within the deltaic lower Nun River basin and experiences recurrent, severe flooding that causes widespread loss of life and damage to infrastructure. This study applied a GIS-based framework integrating morphometric analysis, pea...
Open access
Research Article10.9734/jerr/2026/v28i71964
This study investigated the optimisation of oil extraction from Treculia africana (breadfruit) seeds using response surface methodology (RSM). The effects of three process variables—extraction temperature (°C), extraction time (h), and seed mass dosage (g)—on oil yield were evalu...
Open access
Research Article10.9734/jerr/2026/v28i71963
Praise Adenike Alli, Oluwatunmise Peter Abolarin, Samuel Opeyemi Kayode, Itunu Deborah Odunewu, Oyewumi Tolulope Ajao & Precious Adesope Olaomotito·Journal of Engineering Research and Reports·2026
The present study evaluated the physicochemical and microbial water quality of River Ona, Ibadan, Nigeria, at three sampling stations representing the upstream (Loc 1), midstream (Loc 2), and downstream (Loc 3) reaches of the river's residential corridor. These stations were sele...
Open access
Research Article10.9734/jerr/2026/v28i71960
As service life increases and concrete structures are exposed to variable loads and harsh environments, surface cracks inevitably develop. Cracks affect not only surface appearance but also the long-term durability of concrete components; therefore, accurate identification and re...
Open access
Research Article10.9734/jerr/2026/v28i71961
This study characterised the workability and compressive-strength development of two nominal volume-batched site-mixed concrete formulations, 1:2:3 and 1:2:4, prepared under reported experimental conditions in Bahrain, and contextualised their 28-day strengths using aggregated hi...
Open access
Research Article10.9734/jerr/2026/v28i71962
Ammonia-laden effluent from fertiliser and urea processing facilities poses a significant environmental hazard, causing eutrophication, dissolved-oxygen depletion, and acute aquatic toxicity when discharged untreated. This study presents the process simulation, design, and econom...
Open access
Research Article10.9734/jerr/2026/v28i71958
Jordan has strong solar resources, high energy-import exposure and a policy history that has enabled rapid photovoltaic deployment. The next phase of solar development is likely to be shaped less by aggregate irradiance potential than by the practical conditions under which rural...
Open access
Research Article10.9734/jerr/2026/v28i71959
This study evaluated the adversarial robustness of machine learning-based fraud detection systems by comparing classifier vulnerability profiles and assessing adversarial training as a mitigation strategy. Using the IEEE-CIS Fraud Detection dataset, comprising 590,540 transaction...
Open access
Research Article10.9734/jerr/2026/v28i71957
Water hyacinth infestation in the Niger Delta obstructs navigation, affects fishing and aquatic-resource use, and creates operational difficulties for mechanical removal. Conveyor-equipped harvesters provide a practical means of collecting the biomass, but their use in brackish,...
Open access
Research Article10.9734/jerr/2026/v28i71956