Search

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

Keyword Search

Enter your search term(s):
[advanced search]

3 results returned

Search results

• Statistical analysis of methane concentration fluctuations produced by incomplete mixing of methane and air at a model coal mine working face
• Replacing brattice cloth at coal faces with air curtains and diffuser fans,a preliminary study
• Coal mine equipment forecast to 1985