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April 2004

Volume 56 Issue 4

FEATURED ARTICLES

Fine copper grinding using Metso's Stirred Media Detritor Graham Davey	Preview
Promoting cooperation between small- and large-scale miners in Ghana R.K. Amankwah, C. Anim-Sackey	Preview
Barrick's gold production to increase by 40 percent	Preview
Mining important to Colorado's economy William R. Yernberg	Preview
Equipment Maintenance: Tips on maximizing mining-equipment engine life Reginald Dias	Preview

TECHNOLOGY NEWS

Komatsu truck offers many new features

Preview

TECHNICAL PAPERS

Worker exposure and equipment noise in large surface coal mines E.R. Bauer, D.R. Babich	Abstract
Sampling and analysis for optimal ore-grade control M.G. Nelson, N.K. Riddle	Abstract
Design considerations for a high-tonnage countercurrent decantation thickener plant R.A. Williams, D. Anthony, R. Raponi	Abstract