The influence of tungsten inert gas (TIG) welding process parameters on the microstructural features and mechanical properties (hardness and tensile strength) of AISI430 ferritic stainless steel (FSS) welds based on the central composite design (CCD) approach, was investigated. The process parameters considered in this study include; the welding cu... Continue Reading
Records of flooding are increasing due to heavy storm which tend to filled most of the water bodies, thereby overflowing onto the land, causing damages and endangering the lives people. Flood also occur due to other factors such dam break, overflowing rivers etc. Most of this event occur with inadequate capacity of reservoirs, channels, drainages e... Continue Reading
In the calibration of partial safety factor of steel reinforcement bars conducted in this study, necessary parameters (i.e. steel diameter, area, yield strength, ultimate strength, and elongation) needed for the calibration were obtained from the steel testing laboratory, Department of Civil Engineering, Ahmadu Bello University Zaria. The test resu... Continue Reading
Vegetable oils need to be chemically modified before being used for biolubricant production for internal combustion engines applications. One of the most effective chemical modifications for vegetable oils is epoxidation of its double bonds. In this work, Crude Jatropha oil (CJO) was epoxidized using peracid generated in-situ by the reaction of for... Continue Reading
Aromatization is an important process for catalytic conversion of light alkanes to aromatics which are essential feedstocks to petrochemical industries. A number of catalysts have been used for this transformation among which Zn/ZSM-5 emerged so far best owing to its good dehydrogenating activity, lower cost and environmental friendliness. Compared... Continue Reading
The necessity to source clean energy and contain CO2 emissions has brought about a global interest in the use of biomass as an environmental friendly renewable energy route. One of the drawbacks in the conversion of biomass to energy via pyrolysis/gasification is the liberation of CO2 from the syngas.This study was carried out in a two- stage catal... Continue Reading
A Carbon fiber-reinforced polymer (CFRP) has emerged as promising material for rehabilitation of existing reinforced concrete structures. However, one of the major concerns of using this material is its high cost. In this research, a classical optimization technique was employed to optimize the thickness of Carbon Fibre Reinforced Polymer material ... Continue Reading
This research studied the effect of filler dimensions on some major properties of pineapple leaf fibre-reinforced polypropylene composites. In this study, composites of PALF/PP were produced, the PALF were extracted from pineapple leaves. This was achieved by adopting the mechanical scrapping method. The surface of the extracted PALF were modified ... Continue Reading
The rate of increase in multimedia data necessitated the need for a large number of storage devices. Nonetheless, the stored multimedia data has a lot of redundant video frames. These redundant frames make video browsing and retrieval difficult as well as time-consuming for the user; hence, negatively affecting bandwidth utilization and storage cap... Continue Reading
The new developments in mechanical engineering in Nigeria (Low Cost Vehicle project, aviation projects - AIR BEETLE, etc.), require in-house practical calculation techniques in design generally and calculation of stresses in machine components, particularly. The machine components (Spur Gears) under operation are subjected to stresses which differ ... Continue Reading
For reliable and efficient operation of power system, voltage level and reactive power flow along transmission lines has to be adequately regulated. To control reactive power flow over transmission lines and compensate for varying voltage drops, tap changing transformers are required. By altering the voltage magnitudes at the windings of the transf... Continue Reading
Characterization and flotation studies were carried out on the Nasarawa-Eggon lead zinc ore sample through Chemical analysis, Mineralogical analysis, Petrological analysis, Work Index evaluation, Particle size/mineral assay analysis, Liberation studies Bulk Froth Flotation and development of a flow sheet. The chemical analysis was carried out using... Continue Reading
This project produced and evaluated a Self-propelled boom sprayer for small and medium scale herbicide application; with reduced drudgery and better effective herbicide application than the commonly used application machine in Nigeria, the knapsack sprayer. The knapsack sprayer was developed for spot spraying and its small coverage limits it to eff... Continue Reading
Modernization of our surrounding has resulted to widespread pollutants being disposed amidst which are heavy metals into the surroundings. Heavy metals are toxic to both human health and the environment even at low concentrations. Biosorption studies is considered as a method for the removal of heavy metals from dye wastewater due to its simple des... Continue Reading
The effect of thermal pre-treatments on the beneficiation of Ndit Ilmenite resource has been investigated in this work. The Ilmenite resource is located at Ndit village, in Bogoro Local Government Area, Bauchi State, Nigeria. The sample was sourced from four different points at 50m interval apart. The samples were homogenized then pulverized, sieve... Continue Reading