ABSTRACT Merchantable trees in the tropical forest are usually widely scattered and the cost of road construction and logging operations are expensive.
ABSTRACT Soilless farming of vegetables in greenhouse has become a profitable venture in some parts of the world. A high degree of competence in engineering skills, irrigation techniques and cost reduction is required for its successful operation. In Nigeria, the potential of soilless farming in greenhouses has not received adequate attention. The use of soilless media and appropriate irrigation system to produce marketable tomato in a greenhouse were investigated. Roma VF variety of tomato...
The effects of temperature, dielectric constant and catalysis in the kinetics of the oxidation –reduction reactions (involving electron transfer) of N-(2-hydroxy-ethyl) ethylenediammine- N’,N’,N’-Triacetatocobalt (II) by Cu2+ cation were determined. The dielectric constant was decreased from 63.05 to 43.18 and it was found that the rates of the reaction did not show any appreciable change. This seems to mean that the change in the dielectric constant of the medium had no effect on ...
ABSTRACT The postharvest storage of sweet potato roots in the tropics is a major challenge in the crop’s value chain as it deteriorates readily in the hot climate. Although prolonged storage in the cold chain has been shown to be feasible, technical and economic constraints in the tropics makes cold storage inaccessible to growers and retailers of sweet potato. It has been demonstrated in several studies that the plant hormone ethylene greatly influences metabolic changes in many types of h...
This work investigated the anaerobic digestion of cow-dung and cassava peels, the effect of co digestion in biogas production and purification process for biogas upgrade. The biogas experiments were carried out in five different anaerobic digesters which contained cow-dung and cassava peels slurry in the (wt-wt%) ratios of (100:0), (75:25), (50:50), (25:75), (0:100) and were incubated for a 30-day period at ambient temperature. Combined absorption and adsorption process was used to purif...
The project research entailed the production of high quality sealant incorporating a local raw material for sealing holes and gaps in various materials like metal and plastic. Two samples of acrylic sealants were produced, the first samples which is the standard formulations involved the use of silica gel as a major adhesion promoter and the second samples which is the research formulations involved the use of sand (sharp colourless sand with 59% silica/silicondioxide composition)) as a...
The inhibitive strength of Canonamuricata (CM) and Cassuttidfilifurmis (CF) on mild steel dissolution in 0.5 M H2SO4 and 1 M HCl environment was studied using gravimetric and electrochemical techniques. The results obtained indicate that all studied extracts of both plants are adsorption type inhibitors hence; the adsorption of the inhibitors is in line with Langmuir adsorption isotherm. Efficiencies of the inhibitors increased with an increase in concentration of the extract but decreas...
ABSTRACT The effect of moisture content (5-24%) on some physical and compressive properties of the ‘Amelonado’ and ‘Hybrid’ varieties of cocoa beans were studied. Alongside, the effects of fermentation periods (0-8 days) on the biochemical profiles of the dried beans were studied in three morphological parts (whole bean, nib and shell). Four experiments were separately conducted as completely randomized, factorial designs. Compared to the ‘Amelonado’ variety, the axial dimensions ...
Abstract This paper presents the characterization of laterite-cement-based matrix composites, reinforced with chemically modified bamboo fibers. Fiber extraction and chemical modification were first explored by soaking slabs of bamboos in NaOH solution (5 wt.% of NaOH in distilled water) for 14 days. Fiber characterization, as well as the flexural and compressive strength of reinforced composites, were carried out with MTS universal mechanical testing machine. Comparative results on the compr...
Abstract Car theft has become prominent all over Ghana in recent years. Despite its growing prominence throughout the country, measures to promptly recover stolen vehicles have often proved tedious and futile. To tackle this problem, this project aims to develop a remote control system and a model of a GPS tracking system which would together help vehicle owners swiftly recover their vehicles should the need arise. This was achieved by developing a mobile application to serve as an interface...
Abstract Vehicles provide an efficient way of transportation across the cities of Greater Accra in Ghana. Technology has impacted the transportation sector through variety of modes such as applications for routing. An example of this is the google maps mobile application. However, due to bad road networks and a time sequenced traffic control system in Ghana, traffic congestion is a major problem during peak times of the day. In cases of emergencies where a route needs to be created for emerg...
ABSTRACT Imagine a five-year-old boy losing his life by being knocked down by a drunk driver who has been intoxicated with alcohol. The driver’s carelessness will cause the family of the little child so much pain, as well as lead to a significant loss of human resources in the country. Road accident according to research has been the second leading cause of death in Ghana. While several countries in the world invest in finding solutions to road accidents [1], little is done by the country t...
AbstractThe main purpose of the project is to convert polyethylenetetraphylate (PET), a known plastic waste material in Ghana, to wealth. Composite samples were produced by heating aggregates together with shredded PET plastic waste material, while bitumen was added to the plasticcoated aggregates. The composites produced were of 4.5 wt%, 9.0 wt%, 13.6 wt% and 18.0 wt% concentrations of PET. Mechanical and optical characterisation of the fabricated composite samples were studied for optimizat...
Abstract The public transport industry is an essential part of people’s lives. However, the problem associated with the local public transport industry is, travellers usually get frustrated when waiting for a bus to arrive at a bus stop due to uncertainty on when the bus may arrive or if it may arrive at all. This leads to anxiety on the part of the traveller as well as time wastage, especially if this was not planned for in the trip. To solve this, historically GPS receivers are used in co...
Abstract Diabetes mellitus, also known as diabetes has on major effect on its patients. This is the effect of impaired wound healing. Patients thus get minor wounds such as small cuts which become non-healing and are liable to get infected. Severe cases of such occasions lead to amputations. A solution to this problem is tissue regeneration with the help of scaffolds. These scaffolds are made of biopolymers and promote cell adhesion, regeneration and minimal diffusional constraints. Computer ...