ABSTRACT There has been growing need to characterize the fluid flow through a simplified model such as random walk dynamics.
Abstract Nanocomposite hydrogels of poly-n-isopropyl were prepared by incorporating gold and magnetite nanoparticles. The nanocomposite-based hydrogels formed were geometrical, ~7.3 mm in diameter and 5 mm thick (in the swollen state). Morphological analysis was characterized by a scanning electron microscope. Drug-loaded hydrogels were subjected to laser heating at 1 W, 1.5 W and 2 W for 20 min in each laser cycle. The metabolic activities of the cells were analysed. The photothermal convers...
Abstract Road construction typically confers significant benefits on the population the road serves. A recent rapid growth of urban residential areas in Ghana has necessitated the construction and rehabilitation of the roads linking these urban areas to major commercial towns in the country. The Kwabenya (Abuom) to Kitase area, straddling Ghana’s Eastern and Greater Accra regions, is a typical example. Using both primary and secondary data sources, the research reveals that agricultural pro...
Abstract This paper presents a recent study on recycling poly-ethylene-tetraphylate (PET), known as plastic waste material in Ghana, to wealth. Composites were produced by heating aggregates together with shredded PET plastic waste material, while bitumen was added to the plasticcoated aggregates. The composites produced were reinforced with 4.5 wt%, 9.0 wt%, 13.6 wt%, and 18.0 wt% PET. Mechanical properties of the fabricated composite samples were studied with a Universal testing machine for...
Abstract Aquatic search and rescue in Ghana and most parts of the world poses lots of disadvantages to the rescuers. Divers being tasked for each search and rescue mission risk their lives trying to locate a body or an object underwater. Sometimes, these divers are attacked by aquatic animals or even hit by submersible objects. This approach is also problematic since divers are not able to stay longer under water due to fixed oxygen tanks. This limits their search periods as they ought to res...
Abstract Industrial accidents are on the rise. This fact is even more prevalent in developing countries where the countries lack the safety standards required to ensure workplace safety in the pursuit of economic development. As land in prime locations becomes increasingly scarce, there is an argument for building skyscrapers. But this just creates a new workforce that are subject to the horrific dangers of cleaning glass panels at heights well above the ground. In this applied project, I des...
Abstract The objectives a welding flux is expected to achieve are many and often mutually incompatible.
ABSTRACT Both Engineering students and praticising engineers are involved in the design and analysis associated with fluid mechanics and thermodynamic problems.
ABSTRACT The plastic extruder system is an important process in the solid waste recycling system.
ABSTRACT Abundant and economical energy is the life blood of modern civilization.
Abstract This paper presents experimental and simulation study of the effects of stress on microstructure and failure morphology of low carbon steel under plane stress conditions. The study has revealed large extension of grains at the point of fracture and, stress and strain looped around the pearlitic faces of the microstructure matrix. The stress and strain distributions in the microstructure have shown that concentration of stress and strain on the pearlite were instrumental to oblique f...
ABSTRACT Development and enhancement of innovative engineering curriculum is a vital exercise in producing well grounded graduates that can perform in todays world.
ABSTRACT A multipurpose machine for sieving of Ogi (ground corn slurry) and other applicable grain slurry compromises the sieving container which receives water from an external water unit and the slurry Ogi to be sieved through a hopper.
ABSTRACT Sawdust particles soon after emission from the cutting machine usually move dynamically with transformation in some dimensions. This paper models the sawdust particle motion as a two dimensional transformation system of continuous time series. Cost could be saved using this approach instead of utilizing dynamic systems that depend on time history. TWP dimensional graphical representation of continuous time series of Duffing's dynamic system for sawdust particles was investigated with...
ABSTRACT Heat flow patterns in two salt bath furnaces were studied in this work using finite element(FE) analysis. The implications of the heat flows on long term stability of furnace performance were evaluated. One design had a purely silica brick back-up after the embedded heating element with asbestos and glass-wool fiber insulation just before the outer steel shell. The other had an additional air-gap insulation formed by cylindrical steel belts with spacers placed after the silica back-...