FDRE TVTI ETD
FDRE TVTI institutional repository is a new digital institutional repository system that collects, preserve and distribute the scholarly output of the Institute, mainly postgraduate Electronic Thesis and Dissertation (ETD), articles, proceedings. The system is dedicated to help users to find all the information they might require in order to format and successfully submit their graduate thesis, dissertation and publications electronically. The user friendly web interface enables to maximize and optimize the resource sharing among FDRE TVTI different faculties
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Recent Submissions
Investigation The Effect Of Alternative Additive Mixed Castor And Cottonseed Oil On The Lubricity Of Diesel Fuels.
(FTVETI, 2023-01-16) Degife , Yohannes
Fuel additives are used worldwide for a variety of applications including fuel efficiency increase, emission reduction, and modifying storage/handling properties among others. Because of the high percentage of global diesel fuel consumption and its impacts on internal combustion engines, various investigations are being conducted around fuel additives that increase the efficiency of diesel fuel-powered internal combustion engines in terms of diesel fuel consumption, wear, lubricity, and greenhouse gas emissions. In this research, the effect of castor bean and cotton seed oil (CBO/CSO) as an additive to diesel fuel and its tribological behavior in terms of engine performance and efficiency and greenhouse emissions has been experimentally investigated, and ANOVA and Pareto chart is used to support the research and optimize the acquired data in spell out the level of influence of castor bean and cotton seed oil from other parameters. To this effect as starting point characterization of diesel fuel used in Ethiopia and the castor bean and cotton seed oil has been conducted separately. At the same time, an extensive literature survey has been conducted in search of the optimum percentage of castor bean and cotton seed oil to be added to the diesel fuel that does not affect the essential characteristics of normal diesel oil. Consequently, using the diesel oil tribological behavior as benchmark samples of blends with 0.5% (5ml Castor bean and cotton seed oil 995ml Diesel fuel), 0.75% (7.5ml castor bean and cotton seed oil 992.5ml Diesel fuel) and 1% (10ml castor bean and cotton seed oil 990ml Diesel fuel) As the result, a
cotton seed and caster bean oil additive of 1% has shown enhanced tribological properties over normal diesel fuel. Moreover, experimental evaluations on performance, combustion, and emissions characteristics have been conducted using a computer-aided performance test and finally, the blend of 1% cotton seed and caster bean oil has shown superior characteristics in terms of wear, lubricity, and reduction of carbon monoxide and hydrocarbon emissions as compared with normal diesel oil.
Bike renovation
(FTVTI, 2025) FTVTI
Mathematical Modeling Of Aspect Of Crocodile Ranching With Numerical Analysis Approach
(ASTU, 2024-06) Hirut, Gebremedhin; Prof. Anne Kværnø
Dr. Mesfin Mekuria Woldaregay
Crocodiles are aquatic reptile which includes 23 species in the world. This thesis investigated the growth patterns of crocodiles in Arba Minch Crocodile Ranch, employing three renowned growth models: Von Bertalanffy, Logistic and Von Bertalanffy-Putter. The study aims to identify the best fit model by comparing their performance using the least square method in python. The Bertalanffy Putter model was further modified to include linear terms, enhancing its adaptability to the crocodile growth data. The performance of each model was evaluated by calculating the sum of squared differences.The results indicate that the modified Bertalanffy model provided the most accurate representation of the growth of Nile crocodiles. This model accurately captures the growth patterns. To further validate the models, they were applied to a separate data set from the literature with long term growth data. With some simulations we have seen that increasing the amount of food than usual decreases the amount of time to reach the desired length to slaughter the crocodiles.
Factors Contributing To Entrepreneurship Intention Of Graduate Students:The Case Study Of Private Higher Education Institution In Asella Town
(2018-05) Kiberom, Mehari; Bekele Reta (Asist. Professor
This study is intended to fill the gap by exploring the intention and of PHEI students in general and specifically to examine how Gender, Family background, Entrepreneurship education, Perceived access to finance, perceived government policy and Social normaffect Entrepreneurial intention of undergraduate students of private higher education institution. Stratified Simple Random sampling technique was used to draw sample from population. The primary data of this study was gathered by distributing 219 survey questionnaires to respondents at private higher education institution. From these sample questionnaires, the responses of 210 respondents were qualified for analysis and analyzed through Descriptive statistics,Independent T-test, Pearson Correlation Coefficient and multiple linear regression Analysis. The results indicated that there are significant and positive relationships between all the independent variables. However, training and skill development programs are necessary to increase the personal capabilities and generate interest and intention among students to have positive attitudes towards entrepreneurship.This paper suggests that there should be continuous effort to promote female entrepreneurship and continuous effort from PHEI to work closely with a variety of business support agencies or other government agencies to raise students' awareness of various avenues of support and programs available to assist them in their business start-ups.