Results 141 to 150 of about 54,082 (295)
An Overview of Producer Services in the Mining Industry in South Africa
, 2000 The mining industry has been at the heart of South Africa's economy for over 100 years. This working paper explores an aspect of the mining industry that has received little attention - the producer services used in production.
Pogue, Thomas E.
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Deep Underground Science and Engineering, EarlyView.The Great Dyke of Zimbabwe is notable for its rich platinum group metal deposits but poses significant geological and geotechnical challenges due to its complex rock types and structural features. Traditional pillar design methods are insufficient for addressing these complexities; the study suggests incorporating advanced techniques such as machine ...
Tawanda Zvarivadza +3 more
wiley +1 more source
New Analysis Method for Gold Occurrence in Carlin-type Gold Ore
Yankuang ceshi, 2013 Gold exists in the form of micro-super micro dispersed states in Carlin-type gold ores, which is in the form of rich organic matter. The gold occurrence state cannot be analyzed accurately or at best, can be roughly estimated by using the Mineral ...
SU Xiu-zhu +5 more
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Recovery of gold from thiosulfate solutions and pulps with anion-exchange resins
, 2002 With growing environmental and occupational safety concerns over the use of cyanide in gold processing, more acceptable alternatives are receiving increased interest. The most promising of the possible alternatives is thiosulfate.
O'Malley, Glen Peter
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Deep Underground Science and Engineering, EarlyView.This study highlights that with the static and time‐dependent evolution of slip versus dilation tendency parameter space, structurally controlled deep geothermal systems can be selected within areas of higher permeability and lower seismic hazard. Abstract Faults play a vital role in the Earth's hydraulic system by facilitating fluid flow when dilating
Michal Kruszewski +4 more
wiley +1 more source
Deep Underground Science and Engineering, EarlyView.Based on the 90 datasets, ERT and four optimization algorithms were used to build four hybrid models to predict the UCS of the backfill body. The SMA‐ERT model was the most effective model, and it can reliably guide the design of the backfill ratio parameters. Abstract This study analyzed the feasibility of using titanium (Ti) tailings as a backfilling
Weijun Liu, Zida Liu, Zhixiang Liu
wiley +1 more source
Deep Underground Science and Engineering, EarlyView.This research proposes an interpretable hybrid stacking ensemble framework, optimized by the Sparrow Search Algorithm, to enhance hard rock pillar stability prediction. By integrating six machine learning models—k‐nearest neighbors, support vector machines, random forests, Gradient Boosting Decision Tree, eXtreme Gradient Boosting, and Light Gradient ...
Ning Wang +3 more
wiley +1 more source
VPRS 9686 Mining Warden's Register of Applications for Gold Mining Leases, Eaglehawk
Mining Warden's Register of Applications for Gold Mining Leases ...
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Comparative Analysis of Metal Preloading Technologies in Batteries and Capacitors
EcoEnergy, EarlyView.Metal preloading strategies play an important role in efficient batteries and hybrid capacitors to compensate for the consumed metals at the first discharge. This article reviews recent progress in preloading technologies in lithium‐ion and other metal‐ion systems.
Xuexue Pan +3 more
wiley +1 more source
, 1893 Caption title.; All signed [i.e. sd] by K. Shi Gun, legal manager and six directors: Thomas Kin, Pin Cheok Tow, Wong Shi Hoo, Wong Shin, Hoy Ling, Wah Moon and H. Yeshue.; Lloyd, Brian. Gold in the north-east, p.156.; Also available online at: http://nla.
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