Solomon Mesfin

• Master of Science
• Professor (Assistant) at University of Gondar

The use of natural fibers (NFs) in polymer composites is a modern trend aimed at developing materials with numerous benefits, including low cost, environmental friendliness, biodegradability, and high specific mechanical performance. Ethiopia is abundant in NFs such as palm trees, sisal, water hyacinth, and the newly emerging water lilies. In areas...

Ethiopia has abundant invasive aquatic plants like water hyacinth and water lily. Large masses of these invasive plants have a negative impact on the country's water bodies, specifically at Lake Tana in Ethiopia, by infesting and deteriorating water quality and reducing the quantity of water. In this research work, an attempt was made to fabricate...

Composites are composed of two or more physically distinct phases whose combination produces aggregate properties. Ethiopia is very rich in natural fibers such as palm trees, sisal, water hyacinth, and newly formed water lilies. However, so far little attention has been paid to the study of the mechanical properties of most fiber composites, such a...

In this work, an innovative nanocutting fluid, based on coconut oil was developed by dispersing silver nanoparticles (AgNPs) of size less than 50 nm. The tribological and physical properties of the prepared nanocutting fluid with different volumes of silver nanoparticles were studied. It was found that the addition of 4% by volume of nanoparticles...

This research paper focuses about the total quality management on performance of Brewery industry in Gondar city, north Ethiopia. The total quality management approaches with an aim of incorporating awareness of quality in organizational process. A well framed questionnaire was prepared and used as the instrument for the data collection and adminis...

In this work, a natural fiber obtained from a water hyacinth (WH) plant was used as reinforcement in high-density polyethylene (HDPE) for the fabrication of WH/HDPE composite by the compression molding process. Fabrication parameters such as water hyacinth content, alkali treatment concentration, treatment time, and coupling agent amount were varie...

Dynamic voltage restorer is considered to be one of the best device to compensate voltage sag and swell. Recently the DVRs based on direct converters are very popular and works are getting published for various topologies and modulating techniques to explore the efficiency and worth of the same. In this paper, the direct converter is realized using...

Exergy efficiency, Nusselt number, friction factor, pressure drop, thermal and frictional entropy generation of water-based nanodiamond + Fe3O4 nanofluid flow in a tube and with various coiled wire inserts have been studied experimentally under turbulent and constant heat flux boundary conditions. The experiments were conducted in the Reynolds numb...

Empirical models were developed to relate stress with a resistance of materials that helps to predict the response of materials. For porous materials, measuring the pore parameters is required to incorporate the intensification effect of the pore on the stress distribution. However, image analysis is the common practice employed to measure pore par...

Energy demand is high in all parts of the world, mostly in all industrial sectors. To meet the energy demand the fossil fuel is the only way. Due to rapid industrial growth and use of fossil fuel result in global warming and environmental pollution. Moreover, the limited availability of the fossil fuels, it is necessary to depend on the renewable e...

The synthesis method of in-situ/chemical co-precipitation was implemented for the addition of Fe3O4 nanoparticles on the surface of nanodiamond (ND) nanoparticles, and it is characterized by using x-ray diffraction, transmission electron microscopy and the magnetic property was estimated from the vibrating sample magnetometer. The 60:40% water-ethy...