This thesis investigates the effect of temperature on the performance of crystalline silicon solar
cell at Debre Markos. The study considers the performance of solar cells in the temperature
range 281.97K–299.33 K and ...
This study aimed to design a simple and low-cost visible spectrophotometer for the detection of
the absorbance of colorful metallic solutions. The designed instrument has a tungsten white light
bulb source, a light ...
In this research work, the main task is to increase the DC open loop gain of a CMOS
operational amplifier for biomedical applications. It involves three basic concepts,
theoretical calculation, design, simulation, and ...
The present project work has mainly focused on reviewed structural and optical properties of
pure and Al, Cu doped Tin oxide (SnO2) Nanoparticles. The structure and nature of SnO2
Nanoparticles with different percentage ...
Superconductivity is a phenomenon that is seen in a few different elements and com pounds which is defined by the charge-carrying Fermions that condense into a Bose Einstein condensation. The main objective of this research ...
In this project, we successfully study the class of generalized non expansive mappings. We also
study s-iteration method for approximation for fixed points of generalized non-expansive
mappings which is faster than ...
In this project, we used the variational iteration method (VIM) to find the approximate
solution of linear and nonlinear Volterra Fredholm integro- ordinary differential
equations of the second kind. The reduction in ...
In this project, we apply the combination of Elzaki transform and homotopy perturbation method
(ETHPM) to solve nonlinear fractional heat -like equations and system of equations. The linear term in
the equation can be ...
In this project we solve solving some families of fractional order partial differential
equations using Laplace transform Homotopy Perturbation methods. The aim of the
methods is to find series analytic approximate ...
In this poject, we understand the new equational class of algebra which we call MS-almost
distributive lattice (MS-ADL) as a common abstraction of De Morgan ADLs and Stone
ADLs. We observed that the class of MS-ADLs ...
O. integrifolia is one of the medicinal plants used traditionally for the treatment of different
diseases. This study is intended to identify the phytochemical constituents and to evaluate the
antibacterial and antioxidant ...
A simple, versatile and selective cyclic voltammetry method for simultaneous determination of
paracetamol and amoxicillin on poly (DHRPCO)/GCE has been developed. The good potential
separation between the oxidation ...
This study investigates the extent of solar ultraviolet radiation (UVR), wavelength ranges
from 280nm-315nm which is called UV-B, distribution in Bahir Dar and Ras Dashan.On the
other hand, when materials exposed to ...
A spintronics device is multifunctional device, which allows the interplay between charge carriers
and spin in a single system. These materials are very important in modern technology for non volatility, fast data ...
The cobalt doped bismuth ferrite nano particles are synthesized via sol-gel route using nitrate of
iron and bismuth precursor in ethylene glycol as solvent and different amount cobalt ion as
dopant. The prepared ...
In Ethiopia 60-80 of the population suffers from water –borne and water related diseases due to
lack of safe drinking water distribution. The aim of this study was to determine the physico chemical quality of drinking ...
Nanocomposite materials based on metal nanoparticles and graphene oxide (GO) have gained
increasing attention for their wide range of potential applications in various material science fields.
In this study, GO ...
This study was conducted to analyze the major phytochemicals to evaluate the antioxidant
capacities by using, 2,2-diphenyl-1-picrylhydrazyl (DPPH) scavenging activities)as well as to
determine the total phenolic, ...
Heavy metals such as lead and cadmium are toxic to environment even in very small
concentration. Thus, a sensitive and selective sensor is required to determine such a very low
concentration. The purpose this work was ...