Structural changes due to coalification and oxidation influence the coal quality,geochemically and petrologically.Understanding of the coal structures helps to
The mineralogy and trace element contents in coals from the West Bokaro coalfield,which is the one of the biggest Gondwana coalfields of India,were studied to d
Key management is a fundamental security service in wireless sensor networks. The communication security problems for these networks are exacerbated by the limi