conclusions: the current study presents the highest accuracy value to diagnose the lad stenosis in the literature. results: bagging and c4.5 classification algorithms were drawn upon to analyse the data, the former reaching accuracy rates of 79.54%, 61.46%, and 68.96% for the diagnosis of the stenoses of the left anterior descending (lad), left circumflex (lcx), and right coronary artery (rca),...

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...

This study investigates how the unregulated and unscientific manner of stone quarrying in Bangladesh degrades environment affects life livelihoods local people. The recent countrywide construction boom infrastructural development kept GDP growth constant Bangladesh. generates colossal demand for stones, Sylhet region is its major supplier. Although there are laws legal mechanisms to regulate co...

one of the most important issues related to knowledge discovery is the field of comment mining. opinion mining is a tool through which the opinions of people who comment about a specific issue can be evaluated in order to achieve some interesting results. this is a subset of data mining. opinion mining can be improved using the data mining algorithms. one of the important parts of opinion minin...

in despite of all progress in technology in mining industry, still labor is one of the key factors in mining operation. this paper presents a system dynamics approach to evaluate the mining labor productivity. therefore, after the identification of main effective variables, two quantitative and qualitative models were built. the qualitative model illustrates the complex interrelated structure o...

introduction development of natural resources and mining activities are prerequisite for economic and industrial growth in many countries. in many cases, such mining areas lie within residential or agricultural lands or natural habitats intensifying the contradiction between land use and environmental protection. different components of mining activities including exploration, extraction and pr...

The purpose of study was to conduct a business feasibility analysis for Perseroda Muratara Energi and Argo, north Musi Rawas Regency, South Sumatra Province. Types sources od data related this are primary secondary data. Secondary ttaken comes from thhe Regional Goverment relevant accountable agencies or stakeholders laws regulations, literature books, journals, financial other sources. In addi...