Browsing by Author "Mekonnen, Tadesse"

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    Corporate Governance Practices and Performance of Consumers’ Cooperative Societies in Addis Ababa City
    (A.A.U, 2020-01) Mekonnen, Tadesse; Workneh, Kassa (PhD)
    Cooperatives are member owned and member financed organization. They have been a model for collecting societies together across all sphere of life. As the members of the cooperatives whose relationship with the cooperative managements are slight, the cooperatives are prone to governance failure. Especially in the consumer cooperatives there is a separation between the members/owners of cooperative and the cooperative management body. This separation of ownership and control creates the governance problems. Since governance is the key for the success of any cooperatives, it needs high level attention by the concerned bodies and societies. The main objective of the study is to describe the governance practices and challenges of the consumer cooperative societies and examine whether the governance have a significant effect on the performance of consumer cooperatives in Addis Ababa City. There are 141 consumer cooperative Societies in the City and they have similar stages of development and exhibit high level of homogeneity in aspects such as structure and leadership. For this the study used census. The study seeks to analyze the effect of various corporate governance mechanisms particularly board size, board educational qualification, board gender diversity and board meeting frequency and used mixed research approach by adopting quantitative method. The Linear regression is also used to quantify the strength of the relationship between the independent variables (Corporate governance practices) and the dependent variable (performance). The finding indicated that the consumer cooperatives are found to have operated in accordance with the country’s cooperative society’s proclamation and regulation. The principles of corporate governance were adequately addressed in the governance practice of consumer cooperatives. With respect to challenges of consumer cooperatives in the implementation of corporate governance that the consumer cooperatives board of directors lacked commitment and leadership; the cooperatives were suffered with the supplies of goods and services and audit committees of the consumer cooperatives were incompetent to execute their duties. The finding also indicated that the corporate governance variables of educational qualification and board size have high impact on the performance of the consumer cooperatives whereas gender diversity and meeting frequency have moderate effect on the performance of consumer cooperatives. Based on the result of the study it is recommended that a separate cooperative governance code should be developed, board of directors and members should be trained to improve the performance of the cooperatives and a policy should be designed to strengthen the female participation in the board
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    Thermal Comfort for Passenger Train from Dire-Dawa to Djibouti
    (Addis Ababa University, 2015-03) Mekonnen, Tadesse; Demiss, Alemu (PhD)
    People spend a considerable time in vehicles; cars, trains, planes, buses or subway. This is the reason why the thermal comfort has more and more paid attention. In one hand people try to make comfort whatever they are at home, office or in car. In the other hand the thermal conditions in the cabin of vehicles and passenger compartments directly influences on the drivers and passengers safety, Now a day the railway transport infrastructure in Ethiopia is the major issues in relation to the development of the country. To make the sector more competitive with other transportation modes it is better to design effective air conditioning system for a rail vehicle locally based on the specific working environment, so as to make passengers more comfortable. After all, passengers want to have a comfortable journey and arrive at their destination rested, so keeping train passenger compartment at a pleasant temperature is crucial. The main objective of this thesis is designing of air conditioning system for a rail vehicle passenger compartment locally, while travelling through the route DireDawa-Djibouti. In this paper the thermal load analysis is done in two ways; by using Analytical methods based on ASHRAE for the Design and Application of Heating, Ventilation and Air Conditioning Equipment for Rail Passenger Vehicles and by using Hourly analysis program (HAP) software. During thermal load analysis car body conductive heat gain, solar radiation heat gain, glazing conductive heat gain, glazing solar radiation heat gain, passenger and operator cooling loads, ventilation cooling load, interior lighting heat gains, fan and fan motor heat gains, passenger door cycling air-infiltration cooling load and other miscellaneous internal heat gains have been considered. And the total cooling load using both methods HAP and Analytical methods is calculated as 74.2kw and 78.22kw respectively based on passenger compartment comfort parameters to be kept at a temperature of 23.50C and a relative humidity of 50%. And finally the suitable vehicle AC system has been designed.