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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

Reducing worker exposure to asphalt fumes from roofing kettles

Publisher:
[Cincinnati, OH] : Dept. of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, [2007]
Phys. Desc.:
1 online resource ([4] pages) : digital, PDF file
Electronic resource
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E-book

Roofing for historic buildings

Publisher:
Washington, DC : National Park Service, Technical Preservation Services, [1978]
Phys. Desc.:
1 electronic text : HTML file.
Electronic resource
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E-book

Evaluation of instrumented cable bolts in cement grout to determine physical and numerical modeling properties

Publisher:
Spokane, WA : U.S. Dept. of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Spokane Research Laboratory, [2004]
Phys. Desc.:
14 pages : digital, PDF file
Electronic resource
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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.