Longwall mining method is popular for high production, safety and winning deep underground coal seams. This technology has the robust machinery such as shields to support the face, shearer to cut the ...

Capital risk allocation is an important problem in corporate, financial and insurance risk management. There are two theoretical aspects to this problem. The first aspect consists of choosing a risk ...

The damage of fixed breakwaters like the vertical, sloping, and curved rigid walls has been frequently observed by several coastal engineers and scientists due to the continuous gravity wave stroke.