This study addresses the engineering challenges of high water content, low bearing capacity, poor equipment accessibility and unsatisfactory reinforcement performance in soft foundations following large-scale dike breaches. A forced-drop-hammer hydraulic compactor is designed for...
Open access
Research Article10.9734/jerr/2026/v28i102018
Voltage instability remains a critical operational concern in the Nigerian 330 kV transmission network, particularly under disturbances and increasing loading. This study evaluated voltage-stability improvement in selected substations within the south-western region using a unifi...
Open access
Research Article10.9734/jerr/2026/v28i102014
Background and Aims: Nigeria’s substantial dependence on crude petroleum for export earnings and public revenue makes its economy particularly exposed to movements in global oil prices. This study examined whether Brent crude oil price is significantly associated with Nigeria’s g...
Open access
Research Article10.9734/jerr/2026/v28i102013
Mechanically fastened joints remain essential in aerospace structures because they provide reliable, inspectable, and certification-mature load paths. Accurate prediction of fastener load transfer and local stress distribution is fundamental to structural sizing, fatigue and dama...
Open access
Research Article10.9734/jerr/2026/v28i92011
Construction defects in stone masonry buildings pose significant challenges to structural safety, durability, and economic sustainability in Nepal's high-altitude regions. This study employs Principal Component Analysis (PCA) to evaluate current and recommended management strateg...
Open access
Research Article10.9734/jerr/2026/v28i92012
Aims: This study investigated the time-frequency and spatial electroencephalography (EEG) characteristics and classification performance associated with motor imagery at different grip force levels, providing experimental evidence for EEG-based decoding of graded grip-force inten...
Open access
Research Article10.9734/jerr/2026/v28i92010
Aims: Conventional code-modulated visual evoked potential (c-VEP) brain–computer interface (BCI) systems commonly employ high-contrast binary black-and-white flickering stimuli, which can induce visual fatigue, while time-shift encoding based on a single pseudorandom sequence lim...
Open access
Research Article10.9734/jerr/2026/v28i92009
Modern power transmission systems increasingly operate under stressed conditions characterised by load growth, reduced operating margins, ageing infrastructure, and extensive integration of converter-interfaced generation. These conditions strengthen the coupling between transien...
Open access
Research Article10.9734/jerr/2026/v28i92008
Prefabricated steel structures have become increasingly important in modern structural engineering because of their construction efficiency, resource utilisation, and compatibility with industrialised construction. Beam-column joints are critical to the load-transfer, deformation...
Open access
Research Article10.9734/jerr/2026/v28i92006
Accurate characterisation of soil elastic properties is essential for predicting deformation and soil–structure interaction under loading. Young’s modulus, shear modulus, and bulk modulus are influenced by stress state, strain level, and soil characteristics, making their behavio...
Open access
Research Article10.9734/jerr/2026/v28i92007