EZ-Up curtain stoppings a practical solution for directing ventilation airflows in large-opening metal/nonmetal mines

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.:

[2] p. : digital, PDF file

Electronic resource

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Super stopping a permanent solid stopping for directing ventilation airflows in large-opening metal/nonmetal mines

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.:

[2] p. : digital, PDF file

Electronic resource

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Ventilation of a 40-foot, two-pass, extended cut

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

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Control of longwall gob gas with cross-measure boreholes (upper Kittanning coalbed)

Publisher:

[Washington, D.C.] : U.S. Dept. of the Interior, Bureau of Mines, [1983]

Phys. Desc.:

17 pages : digital, PDF file

Electronic resource

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Ventilation of the public buildings, &c.

Publisher:

[Washington, D.C.] : [publisher not identified], 1845.

Phys. Desc.:

1 online resource (1 page)

Electronic resource

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Effect of a surface borehole on longwall gob degasification (Pocahontas No. 3 Coalbed)

Publisher:

[Pittsburgh, Pa.?] : U.S. Dept. of the Interior, Bureau of Mines, [1972]

Phys. Desc.:

9 pages : digital, PDF file

Electronic resource

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In the Senate of the United States, February 21, 1859--ordered to be printed : Mr. Davis made the following report (to accompany Joint Resolution no. 81)

Publisher:

Washington, D.C. : [publisher not identified], 1859.

Phys. Desc.:

1 online resource (4 pages)

Electronic resource

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Bleeder system in virgin area in a Pittsburgh coalbed mine

Publisher:

[Pittsburg, Pa.?] : U.S. Dept. of the Interior, Bureau of Mines, [1973]

Phys. Desc.:

8 pages : digital, PDF file

Electronic resource

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Face ventilation measurement with sulfur hexafluoride (SF₆)

Publisher:

[Avondale, Md.] : U.S. Dept. of the Interior, Bureau of Mines, [1980]

Phys. Desc.:

16 pages : digital, PDF file

Electronic resource

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Degasification study from an air shaft in the Beckley coalbed

Publisher:

[Pittsburgh, Pa.?] : U.S. Dept. of the Interior, Bureau of Mines, [1982]

Phys. Desc.:

19 pages : digital, PDF file

Electronic resource

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