In this thesis, certain in_nite subsets of the set of positive integers are inves-rntigated as possible spectra of regular weighted Sturm-Liouville eigenvaluernproblem with separated homogeneous boundary conditions. With the (con-rnditional) exception of the set of square integers, it is shown that...
In this thesis, certain in_nite subsets of the set of positive integers are inves-rntigated as possible spectra of regular weighted Sturm-Liouville eigenvaluernproblem with separated homogeneous boundary conditions. With the (con-rnditional) exception of the set of square integers, it is shown that...
In this thesis, certain in_nite subsets of the set of positive integers are inves-rntigated as possible spectra of regular weighted Sturm-Liouville eigenvaluernproblem with separated homogeneous boundary conditions. With the (con-rnditional) exception of the set of square integers, it is shown that...
HIV/AIDS continues to be a major public health problem in Ethiopia. The current level of the national HIV prevalence in Ethiopia is 4.4%. It is acknowledged that there is a strong relationship between HIV and nutrition. All forms of malnutrition, especially under nutrition are the main problem that...
The underlying aim of all employees training is to increasernefficiency. The need for employees training has increasedrnsignificantly in recent years. It is strongly argued thatrnthe most effective training program is those which changernbehavior on the job in a constructive way. Many...
A Parking function is a sequence of positive integers (a1; a2; : : : ; an) such that its non-decreasingrnrearrangement (b1; b2; : : : ; bn), satis es bi i, for all index i.rnIn this thesis we will see about parking functions and their interrelation with other combinatorialrnobjects; namely...
Milk and milk products are nutrient rich foods, supplying energy and high-quality protein with a range of essential micronutrients. But, it becomes a health risk to the consumers if not handled properly due to high perishability and vulnerability to microorganisms. The present study was conducted...
Concrete prefabrication is an essential and cost effective concepts of today’s fast track construction in the world. Because it is manufactured in the factory within a standard manner and transport the customized components in to the project site where the structure is to be located for...
Concrete prefabrication is an essential and cost effective concepts of today’s fast track construction in the world. Because it is manufactured in the factory within a standard manner and transport the customized components in to the project site where the structure is to be located for...
Concrete prefabrication is an essential and cost effective concepts of today’s fast track construction in the world. Because it is manufactured in the factory within a standard manner and transport the customized components in to the project site where the structure is to be located for...
Concrete prefabrication is an essential and cost effective concepts of today’s fast track construction in the world. Because it is manufactured in the factory within a standard manner and transport the customized components in to the project site where the structure is to be located for...
It is known that road construction projects are executed over spans of years in the country. In consideration of the long years of execution, and in recognition of the risk of rise or fall of cost of construction inputs from the time of tendering to the time of execution, contracts for most of...
In computer security, Intrusion detection Systems (IDS) are mechanism of detecting anrnintruder in the system and notifying malicious activities to system administrator. Mostrnof IDS researches are on wired Local Area network (LAN) using KDD dataset. But thernwireless IDS needs its own research...
Digital Terrestrial Television (DTT) is a technological evolution of broadcast television and an advancement over analog television. The analog television system has been in existence in Ethiopia over the years but now Ethiopian Broadcasting Corporation (EBC) is ongoing to deploy DTT transmitter....
Since the useable frequency spectrum is a scarce resource, future wireless systems should focus onrnnew technologies that provide high spectral efficiency and improved link reliability. Therncombination of Multiple Input Multiple Output (MIMO) wireless communication withrnOrthogonal Frequency...
In today’s world, microstrip antenna and coplanar waveguide patch antenna are used in allrnwireless communication such as cellular telephony, satellite, portable personal communication,rnaircraft, spacecraft, and missile applications. The growth and popularity of wireless application...
Due to the rapid population growth and unmanageable urbanization, one of the burning issuesrnfaced by the world today is management of all types of wastes. This study has been conducted onrnthe production of biogas by anaerobic co-digestion of food wastes with goat manure. Food wastern(FW), goat...
Ethiopia, in order to reduce its dependency on imported petroleum fuels which consumes more than70% of the foreign currency earning, climate change issues and to tackle invasive weed problem such as Water hyacinth through integrated management approach of the concept of waste to Energy, a lot of...
Electrochemical carbon dioxide reduction reaction (ECR) on surface CuS (001) is one of the most capable approaches to convert CO2 gases to formic acid and carbon monoxide products. Geometry optimization and Gibbs free energy calculation were carried out using density functional theory with general...
Cellulose-based aerogels are materials that are produced from cellulose, which is the most abundantly available natural polymer. Like other aerogels, cellulose-based aerogels have low density and highly porous structure made from interconnected network of cellulose fibers. Those properties of...