The quality of water is a function of either or both natural and anthropogenic activities. Wastewater usually contains various pollutants, depending on what it was used for. This study was conducted to assess the pre and ...

Three box type solar cookers were designed and prepared from locally available materials. Performance evaluations of the three box-type solar cookers were made by boiling water, heating sand and by measuring temperature ...

This study was carried out to determine temperature gradient of solar ponds constructed from sand, stone, cement and gravel during the Autumn season (November) in Arsi Sire, Oromia region (at an altitude of 1793 m.a.s.l. ...

The study was conducted to determine sound created from wind turbine under a variety of wind conditions at a variety of distances from the wind turbine base. The initial energy in the sound was distributed over a larger ...