The four-bar spatial mechanism is the most basic chain that can be composed of four links andrncan include joints with any combination of rotational and translational freedom used inrnthousands of applications. This thesis will present some of the techniques and introduce solutionrntools that were...

7202. Assessment Of Safety And Health Laws And Enforcement Practice In Ethiopian Construction Industry A Case Of Selected High-rise Building Projects In Addis Ababa

The nature of construction work is dangerous, risky, and needs attention in integrating well-being andrnsafety management into the entire process. In Ethiopia, the state of occupational safety and healthrn(OSH) is weak, especially in the construction industry. Compliance with OSH law is one of...

7203. Developing Activity Construction Labor Productivity Model A Case Study On Meles Zenawi Leadership Academy Construction Project

Productivity is an influential variable showing the economics of production activities. Higher productivity levels imply increased profitability and the ability to pay higher wages to workers. In the Ethiopian building industry, construction labor productivity loss is one of the severe problems....

7204. Coexistence Of Distributional And Rational Solution To Some Linear Ordinary Differential Equations

In this paper, we visit a distributional solution of the di erential equationrnty(n)(t) + my(nÃƒÂ€Â€Â€1)(t) + ty(t) = 0rnwhere m and n are any integers with n 2 and t 2 R using Laplace transformrntechnique. We nd that the types of Laplace transformable solution in thernspace of...

7205. Design And Performance Analysis Of Schottky Terahertz Transceiver For 6g Wireless Communication

Wireless technology is in a rapid chase of higher data rates to satisfy the growingrndemands of services and devices which will all interconnect. One of the envisionedrntechnologies to fulfill this is Terahertz wireless communication owing tornwide bandwidth and possible bitrates into the Tbps....

7206. Biomass Gasifier Process Simulation For Sustaibale Energy Production From Different Biomass Feedstock

With the gradual depletion of coal and petroleum resources, biomass is being perceived as arnself-sustainable source of energy production. It is cheap and readily available as well.rnGasification is one of the potential sources for production of clean and eco-friendly fuel.rnASPEN PLUS simulator is...

7207. Deinking Of Black Toner Ink From Laser Printed Paper By Using Anionic Surfactant

The purpose of this research was to synthesize one type of natural anionic surfactant (fatty acid soap) from renewable material (natural oil) and use of this surfactant for ink removal from waste printed paper via flotation deinking in paper recycling process. The work included the preparation of...

7208. Removal Of Chromium From Tannery Wastewater Using Modified Fish Scales As Adsorbent

Industrialization activities have brought many troublesome changes in the environment due to the disposal of huge amount of liquid and solid wastes. However, the presence of a heavy metal such as chromium in the industrial wastewater is a potential hazard to aquatic, animal, and human. Biosorption...

7209. Exponential Estimates In Retarded Functional Differential Equations

So far, many things were said about differential equations without time delay, the so called ordinary differential equations or partial differential equations and their solutions. Different techniques have been used to show the existence and uniqueness of the solution of initial value problem of...

7210. A Graduate Seminar Report On Combinatorial And Automated Proofs Of Certain Identities

This paper is intended to discuss different approaches in proving identities. The paper comprises of two sections. The first one deals with basic concepts in combinatorics that are used in farther discussions and the second Section is the main body that discusses the proofs that illustrate the...

7211. Graduate Project Paper On Colorful Paths In Vertex Coloring Of A Graph

This project paper is mainly focused on connected simple graph G and onrnthe existence of a v-colorful path and rainbow path for any _ _ __ _(thernset of all vertices of a graph G) of a given length, and algorithms to findrnthose colorings.rnThe first section contains the short summary of the paper...

7212. The Haar System

In this project we will present an example of an orthonormal system on [0,1) known asrnthe Haar system. The Haar basis is the simplest and historically the first example of anrnorthonormal wavelet basis. Many of its properties stand in sharp contrast to therncorresponding properties of the...

7213. Differential Eqauations And Bifurcation Analysis Of Dynamical Systems

Systems of differential equations occur in various practical problems and their theory includes that of the single equation. Many important physical problems arising in engineering and applied science are modeled directly or indirectly by ordinary differential equation which is actually...

7214. Feeding Behaviour And Activity Patterns Of Hamerkop (scopus Umbretta) In Lake Hora Bishoftu

The feeding behavior and activity pattern of hamerkop (Scopus Umbretta) was studied on the Lake Hora Bishoftu. While study was carried out data were collected during dry and wet seasons (Jan- July 2019). Four days a month totally for 28 days data collected. Data collection throughout the day...

7215. Interrogative Constructions In Poko Allete (ga Ww Ada)

The th es is deals wi th interroga ti ve constructions in Al lete by uSing a descripti vernapproach. After the necessa ry data were coll ec ted, the resea rcher described thernmorpho logica l, syntac ti c, lex ical properties and intonational behavior of interrogati vernconstructions. Throughout...

7216. )in Foration Of Tlie Perceptions Ana Practices Of Flip-trainea Su6ject )i Rea Instructors In Promoting )icaaemic Fngcisii Learning Tlie Case Of )ir6a Mincli Coege Ofteacherfaucation

This study was aimed at exploring the perceptions of ELIP-Trained subject area instructorsrntowards promoting academic English Learning and assessing their practices in promotingrnacademic English learning. The study allempted to see ELIP-Trained subject area instructors 'rnperceptions and...

7217. Prevalence And Treatment Outcome Of Tuberculosis And Tb Hiv Co-infection Among Patients Visiting Boru Meda Hospital Dessie Town Northeast Ethiopia

Tuberculosis (TB) is a highly infectious air born bacterial disease that is caused by Mycobacterium tuberculosis. It is the major cause of death in developing countries. There were an estimated 9.0 million incident cases of TB which is equivalent to 126 cases per 100,000 populations in 2013.The...

7218. Use And Management Of Traditional Medicinal Plants By Communities Living In Tselemti Wereda North-west Zone Tigray Regional State

Traditional medicine refers to any ancient and culturally based health care practice differing from scientific medicine. In Ethiopia, communitiesâ€™ knowledge about traditional medicinal plants (TMPs) is transferred secretly. The present study was conducted in Tselemti Wereda, North-West...