Browsing by Author "Mengistu, Daniel"

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    Assessing Rainwater Harvesting as an Alternative Source of Non-Domestic Water Supply: Case Study at Jemo-1 Condominium
    (Addis Ababa University, 2017-06) Mengistu, Daniel; Tsegaye, Wondmyibza
    Water supply systems in Addis Ababa provide service to approximately 55% of the demand. Simple mechanisms that address urgent problems had to be used to supply citizens with water. Rainwater harvesting (RWH) systems have been in use since ancient times, and these days its use is increasing. Rainwater catchment systems are simple solutions that can be adopted in many parts of the city; many houses are already equipped with storage tanks and catching rainwater would require only a basic catchment system and make the most from the natural resources available. Rainwater harvesting is one option worth analyzing for Jemo-1 condominium site. The total area of the study catchment is 111,030 m2 which is composed of 333 blocks (the total area of 1 block is 290 m2) and 50 communal (the total area of 1 communal is 266 m2). From this 107,442 m3 of water will be collected in a year but this will satisfy only 18.45 % of the total non-domestic water demand. In this study, household scale rainwater catchment systems were analyzed, where water can be channeled through pipes installed on each building roofs. The pipes transport water to aboveground reservoirs. Precipitation data for Jemo-1 was used to determine the amount of water that can be collected. In the end, all aspects were analyzed to determine whether this could be a solution worth implementing in Jemo-1 to alleviate water scarcity problems as well as the possible positive and negative impacts it would have on the economy, society and the environment. It has also been tried to design the RWH components based on design criteria. Based on the design and analyses performed, it becomes clear that rainwater harvesting is not the only solution that will solve all water scarcity issues in Jemo-1. Storage tanks need to be much larger, precipitation has to be more abundant, roofs need to have a bigger area and tanks need to be cheaper for it to be the major source of water supply in the area. Key Words: Rainwater Harvesting, Jemo-1, Catchment, Non-Domestic Demand, Daily Per Capita Demand, Observatory Station
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    Challenges and Opportunities of Managing the Telecom Sector:The Case of Ethio Telecom
    (Addis Ababa University, 2016-06) Mengistu, Daniel; Mohammed, Abdurezak (PhD)
    Telecommunication is the transmission of information over significant distances to communicate. The strong development of telecommunication would help to improve efficiency of the economy and the country’s competitiveness which promote economic and social development. Telecom will change the way humans work, play, and live. The International Telecommunications Union (ITU, 2015) reported that there are more in-use cell phones than there are people on the planet already. Continuous technical transformation and information waves of the past century have driven high growth in the telecom industry. However, telecom companies are facing challenges as well as opportunities in their business endeavor. Hence, the purpose of this research is to investigate and examine the challenges and opportunities of managing the telecom sector of Ethiopia, with particular focus on ethio telecom. The method employed in the research is qualitative research method. Data is collected from both primary and secondary sources using the techniques of indepth interview, direct observation, document review and analysis. Accordingly, it is found out that technological advancement, and telecom fraud are among the major challenges and opportunities of Ethiopian Telecom Sector. Moreover, it is found out that WTO accession will create new opportunities and as well will impose new challenges to the telecommunications sector of Ethiopia. Hence, ethio telecom and the Government shall create strategic alliance and partnership with high technology companies around the World, implement a fraud management system that detect frauds before it happen and damage occurs, implement appropriate policies and strategies to avoid the risks and grasp the opportunities of joining WTO, and establish Research and Development Center of Telecom for sustained development of the Telecom Industry of Ethiopia. Key Words: challenges and opportunities of telecom sector
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    The Effect Of Physical Distribution Service On Customer Satisfaction (The Case Of Moha Soft Drinks Industry S.C. Tekelehaimnot Plant)
    (Addis Ababa University, 2018-05-19) Mengistu, Daniel; Belayneh, Temesgen (PhD)
    The purpose of this paper is to investigate the effect of physical distribution service on customer satisfaction in the case of Moha Soft Drinks Industry S.C. Tekelehaimnot Plant. A structured questionnaire was adopted. A quantitative research approach was implemented, and the hypotheses were also tested on a sample of 341 customers out of 377 distributed, giving a valid response rate of 90.5% percent. The questionnaires were analyzed using Cronbach Alpha, descriptive statistics, correlation & regression. The application used to analyze and examine the hypotheses is the Statistical Package for Social Sciences (SPSS) V.20. The findings of independent variable of descriptive statistics has shown that, the mean score of Physical distribution service variables i.e Product Availability, PDS Timeliness, PDS Quality, PDS Flexibility has been 3.94, 3.75, 3.71 & 3.61 respectively. All selected dimensions of physical distribution service independent variables have a significant correlation with the dependent variable “overall customer satisfaction” with 95% confidence interval & at 0.05 p-value, by scoring a Pearson Correlation Coefficient “R-value” value of 0.667**, 0.582**, 0.544** & 0.534** respectively. In this case relatively product availability had a higher strong relationship with overall customer satisfaction than the other three independent variables & the linear combination of physical distribution service predictors’ (independent variables) explains 57.3% of the variance in customers’ purchases decision. In addition to correlation analysis, further regression analysis was also conducted, and the result indicates that all the selected dimensions of physical distribution service have significant relation with overall customer satisfaction. Finally, the results are useful in identifying physical distribution service focus areas to help Moha Soft Drinks Industry S.C. Tekelehaimnot Plant marketing strategy. As evident from the finding section that, Moha Soft Drinks Industry S.C. Tekelehaimnot Plant is recommended to fully implement physical distribution service dimensions effectively to attract customers that make purchase decision and to increase the sales volume. physical distribution service is one of the competitive advantage area for Moha Soft Drinks Industry S.C. Tekelehaimnot Plant to remain competitive in the soft drinks industry