Abstract: There have been numerous studies on formal methods but yet there is diminutive utilization of formal methods in the commercial world. This can be attributed to many factors such as that few specialists know how to use Formal Methods (FMs) and also the use of mathematical notation gives a perception ...     Read More

Abstract: This work analyzed the plastic and elastic properties of some Nigerian timber as a structural material. Charpy impact test method was used to determine the impact energy/toughness of twenty locally available timber species, comprising of ten hardwoods and ten softwoods. Three sets of specimen (havin...     Read More

Abstract: Reinforced concrete construction entails substantial support work and formwork activities, which expose workers to, inter alia, work at elevated heights, ergonomic hazards, and hazardous chemical substances. Furthermore, support work and formwork are required to support and or restrain substantial l...     Read More

Abstract: The work verifies the morphological variation of strength in various sizes of solid timber beam in order to ascertain their respective volumetric strength mode at the three (3) perpendicular directions. In this work, a mathematical tool known as Volume Integral was adopted to analyze the volumetric ...     Read More

Abstract: This work presents a finite element analysis, using Ansys software, of the O-ring behavior inserted into a groove in a static sealing assembly. The analysis showed that mechanical clearance and friction are key parameters that have an effect on stress distribution. The results of the numerical simul...     Read More

Abstract: In the recent decades, multi-pass sheet metal spinning proved to be a critical process for many industrial components such as jet engines, large size pressurized tanks and vessels, but residual stresses and springback in these spun parts remain an alarming problem. This study is intended to provide ...     Read More

Abstract: Numerical study has been carried out to determine the ultimate bearing capacity of circular footing on a sand layer of limited thickness underlain by a rigid rough base subjected to an eccentric vertical load. The sand layer for the numerical study was prepared at a relative density (Dr) of 69% usin...     Read More

Abstract: The transportation industry is no doubt a fast growing industry globally. In the recent years, the use of nano fluids have been proposed in the refrigeration and air-conditioning system as primary, secondary fluids and lubricants to enhance the performance of the system. This present study focuses o...     Read More

Abstract: This paper focuses on design alternatives of a helicopter tail rotor driveshaft utilizing shape memory alloy (SMA). The conventional tail rotor designs segment the complete shaft into multiple shafts due to its long length which would have low bending natural frequencies. Using multi-segmented shaft...     Read More

Abstract: This study was aimed at improving the degradation rate and bioactivity of magnesium alloy by homogenization annealing and hydroxyapatite coating via electrophoretic approach. Hydroxyapatite was synthesized using co-precipitation method and deposited on mechanical treated and homogenized magnesium al...     Read More