Problem of concession accounting in coal mining enterprises

Fundamentals of 3D modelling and resource estimation in coal mining

The prerequisite of maintaining an efficient and safe mining operation is the proper design of a mine by considering all aspects. The first step in a coal mine design is a realistic geometrical modelling of the coal seam(s). The structural features such as faults and folding must be reliably implemented in 3D seam models. Upon having a consistent seam model, the attributes such as calorific val...

Risk-shiting Incentive Problem and Debt Concession

Risk-shifting incentive problem in financial contracting, which typically arises in the context of a lenderborrower relationship, stands for the borrower’s incentive to influence the risk of his project. Thus, the borrower can increase the value of his payoff at the expense of the lender. However, the lender also may have a risk incentive under some circumstances so that he may render it diffic...

Coal Exploration and Mining

Bioassessment of Heavy Metals in Wheat Crop from Soil and Dust in a Coal Mining Area

Coal mining and related industry can increase heavy metals (HMs) concentrations in soil, atmosphere and wheat, thereby posing metal-associated human health risk via food ingestion.  In this study, 58 samples of soil, wheat, and dust were collected from Xuzhou coal mine eastern China, six kinds of HMs Pb, Cd, Cu, Zn, As and Cr were studied for their spatial distribution in wheat, enrichment in d...

Bioassessment of Heavy Metals in Wheat Crop from Soil and Dust in a Coal Mining Area

Coal mining and related industry can increase heavy metals (HMs) concentrations in soil, atmosphere and wheat, thereby posing metal-associated human health risk via food ingestion.  In this study, 58 samples of soil, wheat, and dust were collected from Xuzhou coal mine eastern China, six kinds of HMs Pb, Cd, Cu, Zn, As and Cr were studied for their spatial distribution in wheat, enrichment in d...