XVIII. Miscellaneous Topics

Controlled Recirculation in Deep South African Gold Mines

Mark Butterworth, CSIR Mining Technology, South Africa

Rolla, Missouri

Direct and Inverse Problem of Diffusion with Simultaneous Linear Accumulation

Petko Ivanov Lalov, University of Mining and Geology "St. Ivan Rilski", Bulgaria

Rolla, Missouri

Equivalent Roughness and Its Application in Calculating Friction Drag of Mine Roadway

Yan Zhou, China University of Mining and Technology, China
Xingshen Wang, China University of Mining and Technology, China

Rolla, Missouri

Management of the Mining Industry/Research Organization Interface

Brad John, Department of Mines and Energy, Australia
Jeneth M. Spiliopoulos, Medtronic, Australasia Pty Ltd., Australia
Judy Beazley, Holy Spirit Hospital, Australia
Timothy J. M. Harvey, Shell Coal Pyt Ltd., Australia
A. D. Stewart Gillies, University of Queensland, Australia

Rolla, Missouri

Mine Safety in Chinese Coal Mines: Today and Tomorrow

Xintan Chang, Xi'an Mining Institute, China
Yunxiu Sai, Xi'an Mining Institute, China

Rolla, Missouri

Modelling of the Occurrence of Hydrogen Sulphide in Coal Seams

A. D. Stewart Gillies, University of Queensland, Australia
Mehmet S. Kizil, University of Queensland, Australia
Hsin Wei Wu, University of Queensland, Australia
Timothy J. M. Harvey, Shell Coal Pyt Ltd., Australia

Rolla, Missouri

Practical Values of Friction Factors

Brian S. Prosser, Mine Ventilation Services, Inc., Fresno, CA
Keith G. Wallace, Mine Ventilation Services, Inc., Fresno, CA

Rolla, Missouri