Postgraduate Project Topics, Thesis and Dissertation
19201. Influence Of Controlled Light Induced Degradation On Hydrogenated Amorphous Silicon (a-sih) Solar Cell Parameters
The influence of controlled light induced degradation on hydrogenated amorphousrnsilicon (a -Si:H) based solar cell parameters was studied using low intensity (AMi. S) andrnhigh intensity (-lOAMi.S) illuminations obtained from WACOM solar simulator. Thernlight soaking experiments were done on two...
19202. Determination Of The Putative Insect Vector Of Napier Grass Stunt Phytoplasma Using Molecular And Bioassay Techniques In Western Kenya
Sampling insects in and around Napier grass fields revealed that 21 Homopteran insectrnspecies exploit Napier Grass (Pennisetum purpureum Schumach 1827) canopy. LeafhopperrnCicadulina sp., and plant hoppers; Leptodelphax dymas Young, and Sogatella manenthornHorvath, are the most dominant Napier...
19203. Potential Of Floriculture Residue For Biogas Production
Production of methane reach biogas through anaerobic digestion of organicrnmaterial provides versatile carrier of renewable energy, as methane can bernused in replacement for fossil fuels. Thus contributing to cutting down thernemission of green house gasses and slowing down the climate...
19204. Land Useland Cover Dynamics And Soil Degradation Assessement Using Remote Sensing And Gis A Case Study Of Jima Arjo Woreda (western Ethiopia)
This study is aimed at assessing the spatio-temporal dynamics of land use/ land cover and soilrndegradation in Jima Arjo Woreda. Three different time landsat images (1973, 1986 and 2001)rnwere classified into 7 major land use/cover classes through supervised classification: farm land,rndense forest...
19205. Challenges And Opportunities Facing Women Managers In Oromia Regional State Bureaus And Offices
The study is generally intended to investigate challenges and opportunities facing womenrnmanagers in the executive branch regional level bureaus and offices of the Oromia region.rnMoreover, it is concerned with identifying attitude of subordinates towards women managers’rnbehavior, and...
19206. Design And Realization Of An Audio Frequency Filter Unit For Shortwave Communication System Using Tms320cso Dsp Kit
Causes that may affect the quality of shortwave data communication over radio are presented.rnDesigning an audio-frequency filter unit, other than the filters exist in the transceiver, isrnconsidered as one solution to improve the quality of this shortwave data communication.rnAmong the different...
19207. Numerical Groundwater Flow Modeling Of Mehoni Sub-basin In The Raya Valley (northern Ethiopia)
Mehoni sub-basin which is found in the Raya Valley is located in the southern part of TigrayrnRegional State of the Northern Ethiopia. The area covers 60% of the Raya valley with arearncoverage of 1183km2.The sub-basin water resource is used for irrigation and domestic waterrnsupply and is covered...
19208. Tunable Negative Refractive Index In A Metamaterial Composed Of Magnetized Plasma And Ferromagnetic Grains
Electromagnetic waves (EMWs) propagating in magnetized plasma with ferromag-rnnetic grains (MPFG) in a direction perpendicular to the applied constant magneticrn eld are investigated theoretically and numerically. The MPFG system consists ofrnconventional magnetized electron-ion plasma and...
19209. Cooperative Mimo System For Wimax Technology
Multipath fading is one of the primary factors that degrade the performance of wireless networks. One of the most powerful techniques to combat the effect of fading is by using multiple antennas that provides space diversity and spatial multiplexing; this technique is called Multiple-Input...
19210. Assessment Of Prevalence Of Cigarette Smoking And Associated Factors Among Psychiatric Outpatients At Dessie Referal Hospital Northeast Ethiopia
Background - Smoking is currently considered one of the leading problems in public healthrnworldwide, and it is one of the most preventable causes of death. Cigarette consumption killedrnover 6 million people, nearly 80% in low and middle income countries in 2011. Smoking isrnprevalent in the...
19211. An Assessment Of The Role Of Micro Finance Institution In Urban Poverty Alleviation (the Case Of Addis Credit And Saving Institution In Kirkos Sub City)
Poverty is a critical problem of all countries in the world regardless of theirrnlevel of development. The whole purpose of development and DevelopmentrnStudies is to fight against poverty and reducing both urban and ruralrnpoverty in the world to the possible minimum level through...
19212. Plant Diversity And Carbon Stock Analysis Along Environmental Gradientsthe Case Of Gergeda And Anbessa Forests In Western Ethiopia
make an assessment of plant diversity, plant community types, structural analysis of woody plantrnspecies and quantify the amount of carbon stock and its relation with environmental gradients. Arnsystematic sampling technique was used and a total of 102 and 30 sample plots each with 20 x 20rnm were...
19213. Hydrology Hydrogeology And Hydrochemistry Of The Lakes System Haiq-ardibo Northern Ethiopia
The geology, hydrology, and hydrogeology of Haiq-Ardibo catclilllent was studied. The mainrnobjectives is to understand and map the different lithologic units and characterize them in tornhydrostratigraphic units, to analyze the water balance of the catchment including lakes Haiqrnand Ardibo....
19214. Modeling And Control Of A Quad-rotor Unmanned Aerial Vehicle At Hovering Position
This thesis titled Modeling and Control of a Quad-rotor Unmanned Aerial vehicle at hoveringrnPosition by Ruth Tesfaye presents the study of modeling and control of quad-rotor UnmannedrnAerial vehicle (UAV) characteristics that could be used for any of its application.rnQuad-rotor UAVs consist of...
19215. Optically Induced Bistability As Nonlinear Optics Phenomena
The project is devoted to a review of some manifastations of the nonlinear optics phenomena.rnIn the rst chapter of this project, we will see the brief introduction of nonlinear opticsrnlike nonlinear optical phenomena,nonlinear optical material and thier properties,polarization ofrnnonlinear...
19216. Assessment Of Lead Toxicity Awareness Among Battery Charging Garage And Workshop Workers And Levels Of Lead In Piped Drinking Water Of Addis Ababa Ethiopia
Lead is a metal with many attractive features such as abundance, low cost, andrnuseful physical properties. Lead and its compounds have been widely used in arnvariety of products including paint, ceramics, pipes, solders, gasoline, batteries,rnand cosmetics. On the other hand, lead is a highly...
19217. Individual Household And Environmental Variables In Relation To Some Neglected Tropical Diseases In Hara Health Center South Wollo Northeast Ethiopia
Intestinal parasitic infections (IPIs) are common health concerns in low-income countries like Ethiopia. Current information on the magnitude of the problem in a locality is vital to devise appropriate control strategies. The objective of this study was, therefore, to assess the prevalence of IPIs...
19218. Simulation Of A Mobile Radio Communication.
The Implementation of A Simulation Environment For Mobile Communication Is VeryrnSignificant For Engineers And Researchers of A Mobile Communication Since It Enables ThemrnTo Work In A Environment That Is Almost Similar With The Practical One. BecausernMultipurpose Programmable Digital Signal...
19219. Study On Current Status Of Institutional Biogas Plants In Ethiopia
Biogas is potential source of energy, particularly where there is an abundant supply of wasternorganic matter. Thus, it is expected that, the greater part of the potential have to be realizedrnthrough community (institutional) biogas plants of large capacities. Therefore, it is paramount torncome...
19220. Geology Geochemistry And Genesis Of Tantalite Deposit Of The Primary Ore Zone Of Kenticha Rare Metal Pegmatite Field Adola Belt Southern Ethiopia
Tantalum is the most important valuable raw-material in electronic, medical and chemical industries.The Kenticha rare-element granite pegmatite in the Neoproterozoic Adola Belt of southern Ethiopia, is a subhorizontal sheet-like structurally controlled intrusive body, is an important source of...
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