Research and Publications
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Research and Publications
Whole-Genome Sequences of Two Multidrug-Resistant Acinetobacter baumannii Strains Isolated from Patients with Urinary Tract Infection in Ghana
Agyepong N, Govinden U, Owusu-Ofori A, Allam M, Ismail A, Pedersen T, Sundsfjord A, Essack S. 2019. Whole-genome sequences of two multidrug-resistant Acinetobacter baumannii strains isolated from patients with urinary tract infection in Ghana. Microbiol Resour Announc 8:e00270-19.
Salancrete Building Blocks From A Mixture Of Sand, Laterite And Cement For Sustainable Housing Construction In Ghana
This paper assesses the suitability of Salancrete block – mixture of sand, laterite and cement – for urban housing delivery in Ghana. Three Salancrete blocks were moulded from four lateritic soil samples obtained from Fiapre, Magazine, Kotokrom and S-Poly, all in the Sunyani Municipality. Also, three blocks each were moulded for sandcrete and landcrete (laterite and cement), using 10% cement content in each case. The 28-day compressive strength values were 5.76, 3.78 and 3.09 N/mm2 for Salancrete, Sandcrete and Landcrete respectively. It was concluded that combining laterite and sand will produce a more suitable block input for sustainable housing delivery in Ghana.
Authors: Kwadwo Adinkrah-Appiah
Towards A Sustainable Ceramic Industry In Ghana: An Assessment Of The Working Environment Using Five Forces Industrial Model
This paper discussed ceramics as an industry that is capable of improving Ghana’s economy and providing direct and indirect employment, and penetrating the international market. The working environments of the companies within the local industry were analysed using the Porter’s Five Forces Industrial Model which revealed that the Ghanaian Ceramic Companies are competitively weak in the areas of exports, and not able to compete favourably with new entrants, although, strong in the area of raw materials and resource inputs. Study showed that the challenges within the industry can be nipped in the bud if academia, industry and government work indivisibly.
Authors: Samuel Nortey, Robert Amoanyi, Frederick E. Okai
Power Loss Minimization And Voltage Improvement By Combined Compensation Method: A Case Study
This paper presents the applicability and effectiveness of the use of both shunt capacitor banks and Unified Power Flow Controllers (UPFCs) for power loss minimization and voltage improvement on a typical power system, the Sunyani sub-transmission and distribution networks. Data were collected from the Sunyani offices of the Grid Company (GRIDCo.) and Northern Electricity Distribution Company (NEDCo.) and modelled with PowerWorld Simulator (PWS) software. The models were based on four scenarios namely, network without compensation (i.e. base case), network with only shunt capacitor bank compensation, network with only UPFC compensation, and network with both UPFC and shunt capacitor bank compensation. The results were presented in Model Explorers, which assist in identifying critical weak buses that merit compensation. There is a general trend of drop in voltage values at the progression of the buses for the base case scenario. Voltage improvement due to the shunt capacitor bank compensation was 25 % of overall system improvement. The UPFCs improved the voltage of the system by 28 %. A combined approach involving both UPFCs and shunt capacitor banks resulted in 47 % of overall system improvement. Although all the violations were not cleared, there is a reasonably high margin of voltage improvement on the buses with the combined compensation method. A major recommendation of this study is that sub-transmission and distribution companies should depart from using only capacitor banks or UPFCs for voltage compensation and adopt a combined compensation method, since it is more effective in lowering power system losses and improving system voltages.
Authors: Iddrisu Danlard, Samuel Jonas Yeboah, Matthew Tawiah
Assessment Of Residents’ Level Of Dependence On Ecotourism At Boabeng In Ghana
Protected areas in Ghana are portions of community lands set aside for ecotourism projects. However, there has been little accompanying exploration of strategies adopted by households in response to their livelihood challenges. The purpose of this study was to assess residents’ level of dependence on ecotourism at Boabeng, which is found within the Boabeng-Fiema Monkey Sanctuary (BFMS) in the Nkoranza North district in Ghana. Data collection instruments included schedules, In-Depth Interview (IDI) and Focus Group Discussion (FGD) guides. A sample of 404 heads of households was randomly selected for the administration of the schedules, whilst 12 respondents each were purposively selected for both the FGDs and the IDIs Data from the IDI and FGD guides were analysed with the thematic networks technique of qualitative data analysis. Respondents were found to be mostly dependent on nontourism related livelihood activities. This study recommends the intensification of livelihood diversification schemes in the study area. Keywords: Ecotourism, Boabeng, community, dependence, household, livelihood.
Authors: Thomas Yeboah, Kwaku Adutwum Ayim Boakye, Ahmed Kulega, Alexander Baidoo