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E-book
Geologic factors causing roof instability and methane emission problems : the Lower Kittaning coalbed, Cambria County, Pa
- Publisher:
- [Washington, D.C.?] : U.S. Dept. of the Interior, Bureau of Mines, [1973]
- Phys. Desc.:
- ii, 25 pages : digital, PDF file
- Electronic resource
- Click for online content.
E-book
A method to characterize risk associated with mine roof conditions
- Publisher:
- [Pittsburgh, PA] : U.S. Dept. of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, [2006]
- Phys. Desc.:
- [4] p. : digital, PDF file
- Electronic resource
- Click for online content.
E-book
Proceedings, new technology for coal mine roof support, Information Circular (IC) 9453
- Publisher:
- [Pittsburgh, PA] : U.S. Dept. of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, [2001]
- Phys. Desc.:
- [2] p. : digital, PDF file
- Electronic resource
- Click for online content.
E-book
Resin-grouted cables for enhanced coal mine roof support
- Publisher:
- Washington, DC : Bureau of Mines, U.S. Dept. of the Interior, [1994]
- Phys. Desc.:
- [2] p. : digital, PDF file
- Electronic resource
- Click for online content.
E-book
NIOSH releases new coal mine roof rating software
- Publisher:
- [Pittsburgh, PA] : U.S. Dept. of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, [2003]
- Phys. Desc.:
- [2] p. : digital, PDF file
- Electronic resource
- Click for online content.
E-book
Roof Monitoring Safety System for underground stone mines
- Publisher:
- [Pittsburgh, PA] : U.S. Dept. of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, [1998]
- Phys. Desc.:
- [2] p. : digital, PDF file
- Electronic resource
- Click for online content.
E-book
Using ground penetrating radar for roof hazard detection in underground mines
- Publisher:
- [Pittsburgh, Pa.] : U.S. Dept. of Energy, Pittsburgh Research Center, [1996]
- Phys. Desc.:
- 14 pages : digital, PDF file
- Electronic resource
- Click for online content.
E-book
Evaluation of dust collector bags for reducing dust exposure of roof bolter operators
- Publisher:
- [Pittsburgh, PA] : U.S. Dept. of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, [2007]
- Phys. Desc.:
- [2] p. : digital, PDF file
- Electronic resource
- Click for online content.
E-book
Field-use early-strength shotcrete test system
- Publisher:
- [Pittsburgh, PA] : Dept. of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, [2011]
- Phys. Desc.:
- 1 online resource ([2] p.) : color ill.
- Electronic resource
- Click for online content.
E-book
Field-expedient shotcrete adhesion test system
- Publisher:
- [Pittsburgh, PA] : Dept. of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, [2011]
- Phys. Desc.:
- 1 online resource ([2] p.) : color illustrations
- Electronic resource
- Click for online content.
