When looking for sustainable energy systems that are environmentally friendly, clean and versatile, Biogas plays a significant role. Moreover, converting food waste into Biogas helps to generate energy and reduce greenhouse ...

The rapid growth of computers transformed the way in which information and data was stored and transmitted. With this new paradigm of data access, comes the threat of this information being exposed to unauthorized and ...

The success factor for a manufacturing firm depends on awareness and management of its productivity level that results from measurement. This study focuses on labor productivity measurement and improvement using the Ethiopian ...

Grouted macadam is a composite material which consists of porous asphalt concrete with 25–35% air voids, in which a designed cementitious grout is filled. This research tried to design grouted macadam mixtures from local ...

Lakes are integrator of environmental changes occurring at a regional to global scale and present a high variety of behaviors on a variety of time scale. In addition, their crucial importance as water stocks and retaining ...

In this thesis the investigation of the possible use of solar energy for large scale water heating system is conducted for the following sites in Ethiopia: Addis Ababa Tannery, Dire Tannery, Modjo Tannery, and Jimma ...

Global climate change has increasingly gained worldwide attention. The concentration of greenhouse gases in our atmosphere is becoming an issue of increasing concern. To address this problem, it is believed that examining ...

The main purpose of this study was to conduct the life-cycle cost analysis of road maintenance interventions undertaken by the Ethiopian Roads Authority (ERA), considering the Alemgena Road Maintenance District as a case ...

Drainage structures of a road are one of the major components which contribute for proper function of the road system. Under designing might result in over flooding of the road surface which undermines the safety of the ...

A good portion of the Ethiopian population, especially of the youth, has taken up the habit of chewing Khat (scientific name: Catha edulis Forsk). Growing use of the stimulant is obviously generating a huge amount of waste ...