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1999
Friday, June 11th

A Proposed New Method to Determine the Effectiveness of In-Heading Methane Control

F. J. van Zyl, CSIR Miningtek, South Africa

Rolla, MO

Comparison of Methane Concentrations at a Simulated Coal Mine Face During Bolting

Charles D. Taylor, NIOSH, Pittsburgh, PA
Edward D. Thimons, NIOSH, Pittsburgh, PA
Jeanne A. Zimmer, NIOSH, Pittsburgh, PA

Rolla, MO

Methane Concentration at Heading Faces With Auxiliary Ventilation

Shinji Tomita, Kyushu University, Japan
Kenichi Uchino, Kyushu University, Japan
Masahiro Inoue, Kyushu University, Japan

Rolla, MO

Methane Ignitions on Roof Bolters in Underground Coal Mines

John E. Urosek, Mine Safety and Health Administration, Pittsburgh, PA
William J. Francart, Mine Safety and Health Administration, Pittsburgh, PA

Rolla, MO

Ventilating the Box Cut of a Two-Pass 40-ft Extended Cut

Edward D. Thimons, NIOSH, Pittsburgh, PA
Charles D. Taylor, NIOSH, Pittsburgh, PA
Jeanne A. Zimmer, NIOSH, Pittsburgh, PA

Rolla, MO