Search U.S. government technical reports digitized or harvested by TRAIL.

Keyword Search

Frictional ignition with coal mining bits

Frictional ignition of natural gas-air mixtures by alternative coal-cutter bit shank materials

Published Year

• 1990-1999 (2) *

Subject

• Coal-cutting bits--Testing (2) *
• Friction (2)
• Coalbed methane--Combustion (1)
• Methane--Combustion (1)
• Mine explosions--Prevention (1)

Author

• Courtney, Welby G. (1)
• McDonald, L. Garner. (1)

• About TRAIL
• FAQ
• Join TRAIL
• Contact Us

Search developed and maintained by the University of Washington Libraries
Copyright 2010