This study focused on the measurements of physical and chemical characteristics sand samples taken from Atayie, Je-wuha, Ziway (4 quarrying sites), Mekie Soderie (2 sites) were analyzed by conducting different tests, such as silt content, moisture bulking, sieve size, unit weight, specific gravity, water absorption, organic impurities tests. After those results Alagie, Bosat Fokie sites satisfi...

One of the most important steps involved in mining operations is to select an appropriate extraction method for mine resources. After choosing the extraction method, it is usually impossible to replace it with another one because it may be so expensive that implementation of the entire project could be economically impossible. Choosing a mining method depends on the geological and geometrical c...

opinion mining deals with an analysis of user reviews for extracting their opinions, sentiments and demands in a specific area, which can play an important role in making major decisions in such area. in general, opinion mining extracts user reviews at three levels of document, sentence and feature. opinion mining at the feature level is taken into consideration more than the other two levels d...

Free silica (silicon dioxide) is naturally found in amorphous and crystalline forms in many rocks in the Earth . Inhaled silicon dioxide is usually crystalline and most often quartz which is the most important form. Silicosis is an irreversible disease that results from workrelated exposures to dusts containing silica crystals, and is characterized by fibrotic tissue reaction caused by the pres...

Dust particles form a major part of air pollutants arising due to industrial processes and pose serious threat to the ecosystem. In India 30-35% of air pollutants comprises of dust particles. Activities such as coal mining, quarrying, stone crushing, thermal power plants, cement industries etc., adds huge quantities of dust to the environment. The current scenario of large scale deforestation; ...

this study was carried out to 1. determine spatial variations of heavy metal deposition in agricultural soils of two rural communities (ouledbouaicha and tazakourte) of about 5790 ha in a mining area near marrakech city in morocco; 2. to assess the extent of metallic pollution generated by the mining activity and; 3. to identify the key mechanism responsible for this contamination and its relat...

Enhanced weathering (EW) involves application of crushed silicate rocks on croplands to capture CO 2 . Although research EW is gaining traction, the missing elements in literature however are supply chain sustainability impacts associated with large-scale production and deployment silicates for purposes. The need conduct assessments systems addition validated technical feasibility remains a rel...

<h1 align="justify"><em>This study aims to identify the leading sectors in Demak Regency. The research objective are: 1) Knowing basic and non-basic . 2) whether there is a shift regional economic structure during 2016-2020 period by looking at components. 3) typology of sectors. method used this quantitative method. data needed form secondary data, namely PDRB for Regency Central J...

clinical databases can be categorized as big data, include large quantities of information about patients and their medical conditions. analyzing the quantitative and qualitative clinical data in addition with discovering relationships among huge number of samples using data mining techniques could unveil hidden medical knowledge in terms of correlation and association of apparently independent...