Aerosols are minute liquid or solid particles suspended in the atmosphere. Aerosol optical Depth
(AOD) and Angstrom Exponent (AE) are significant parameters to study the concentration and
size or type of aerosol over an ...
Aerosols are minute liquid or solid particles suspended in the atmosphere. Aerosol optical Depth (AOD) and Angstrom Exponent (AE) are significant parameters to study the concentration and size or type of aerosol over an ...
Abstract
Nonlinear differential equations arise in all fields of applied mathematics, physics and Engineering hence being of fundamental importance of methods to find their solutions. In the 1980’s George Adomian introduced ...
Diblock star copolymers (DBSCP) are polymers of the two chemically distinct monomer units
covalently bonded to form macromolecule of Diblock star copolymer unit. These types of polymer
can be synthesized in three mechanisms ...
Abstract
Backgrounds:Food security is an enduring critical challenge in Ethiopia.
The 2015 El Ni~no drought is one of the strongest droughts that have been
recorded in Ethiopian history .
Method: The study aims to ...
The ionosphere, also known as the ionized part of the upper atmosphere, is believed to vary as
a function of different parameters such as solar and geomagnetic activities. One of the
peculiar parameters that describe the ...
The design of op-amps continues to pose a challenge as the supply voltage and transistor
channel lengths scale down with each generation of CMOS technologies. In this
thesis, a single stage telescopic CMOS op-amp is ...
The need to design and manufacture CMOS amplifiers to maintain acceptable level of
performances at low voltages is immensely important. This research work emphasizes
on investigating the CMRR, slew rate, and DC gain of ...
Due to the problem associated with device power dissipation, the demand for low
power devices is increasing at a faster rate as a result of wider implementation of
smaller-sized, portable, and hand held devices in the ...
Abstract
Due to the problem of power dissipation, electronic circuits are not fully utilized.
Nowadays, the concept of low power system is one of the most indispensable criteria
in several op amp applications. This ...
Despite the recognized importance of productive struggle (PS) in fostering conceptual
understanding in mathematics, a persistent gap exists between its theoretical endorsement and
classroom implementation. In Ethiopia, ...
Injera is an important staple food in Ethiopia and mostly it is made from Teff and other
crops in small amount such as corn, rice, and wheat. However, post-manufacturing
contamination and improper storage make them ...
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 ...
This study aimed to investigate heavy metal concentrations in soil samples collected from Bahir Dar City Sebatamet solid waste disposal site and to compare the observed values with the regulatory limits. This study also ...
he level ofchromimn species (toto! chromium. C/'(111; and Cr(Vl)) i11 the disch<1rge(l effluent of'
Bahir Dar 'l annery wue determined using two analytical methods. Tota! chromium
concentration in the sampfc.. IJ.<ing ...
Abstract
Antiretroviral Treatment (ART) can help people from becoming ill for many years and this has
improved the survival of HIV patients. In Ethiopia about 690,000 people and globally more than
23.3 million people ...
ABSTRACT
The age at which childbearing begins influences the total number of children a woman bears
throughout her reproductive period. The study aimed to identify determinants of age at first birth by
using gamma ...