Results 11 to 20 of about 186,870 (267)

A technology for non-mining flanks formation at deep kimberlite open pits

open access: yesIzvestiya vysshikh uchebnykh zavedenii. Gornyi zhurnal, 2022
Research objective is to develop a technology for non-mining flanks formation at deep open pits to reduce the amount of stripping operations and increase the scope of diamond fields mining by the open-pit method. Research relevance. The non-mining flanks formation and reduction of their additional excavation from the main openings is one of the most ...
Lel Iurii   +4 more
openaire   +1 more source

New Approach for Trace Thallium Removal in High Purity Ammonium Rhenate Solution by P204 Extraction

open access: yesSeparations, 2022
Thallium (Tl) is an extremely toxic rare metal to the eco-environment. Trace thallium impurity in ammonium perrhenate is harmful to the high-temperature mechanical properties of rhenium metal used for aeroengine single crystal blade. The di(2-ethylhexyl)
Aifei Yi   +7 more
doaj   +1 more source

New Insights into the Drill Cutting Characteristics and Fault Distribution in Gas-Containing Coal Seams

open access: yesGeofluids, 2022
This study is aimed at detecting small faults in coal seams. With coal seams of different buried depths in Luling Coal Mine, Yuenan Coal Mine, and Sihe Coal Mine with obvious difference in hardness and outburst hazards selected as the research objects ...
Xinghua Zhang   +8 more
doaj   +1 more source

Lessons for the mining industry from non-mining landscape restoration experiences [PDF]

open access: yesProceedings of the International Conference on Mine Closure, 2013
Mining is a temporary land use that can produce great economic value from a small physical footprint, although sometimes with an environmental and social footprint that can be devastated by the activity. Nevertheless, mining has the potential to create a foundation for real (sustainable) development in the locality and region around the mine.
Peter Whitbread-Abrutat   +2 more
openaire   +1 more source

Effect of Cr on the Microstructure and Mechanical Properties of the Al-Cu-Y-Zr Alloy

open access: yesMetals, 2023
The present investigation aimed at the determination of Cr addition on microstructure, phase composition, and mechanical properties of the Al-Cu-Y-Zr alloy.
Sayed M. Amer   +4 more
doaj   +1 more source

Water-related sustainability reporting practices amongst South African mining and non-mining corporations [PDF]

open access: yesEnvironmental Economics, 2021
Globally, water resource management has emerged as an important research area and is acknowledged as a crucial factor in achieving sustainable development goals. Despite its significance, water-related sustainability disclosures regarding water and water-related risks among companies are alarmingly weak.
Nadia Latiff, Ferina Marimuthu
openaire   +2 more sources

Investigation of rare earth elements in drinking water of typical rare earth mining and non-mining areas in three provinces of China

open access: yesZhongguo shipin weisheng zazhi, 2021
ObjectiveTo explore the concentrations of rare earth elements (Rare earth elements, REEs) in drinking water in rare earth mining and non-mining areas in Shandong, Guangdong, and Jiangxi provinces of China.MethodsTypical rare earth mining areas and 3 non ...
LOU Minhan   +8 more
doaj   +1 more source

XGBoost-based and tumor-immune characterized gene signature for the prediction of metastatic status in breast cancer

open access: yesJournal of Translational Medicine, 2022
Background For a long time, breast cancer has been a leading cancer diagnosed in women worldwide, and approximately 90% of cancer-related deaths are caused by metastasis.
Qingqing Li   +5 more
doaj   +1 more source

Effects of controllable shock wave on particle size characteristics of tin polymetallic ore crushing products

open access: yesJournal of Materials Research and Technology, 2023
Different minerals in tin polymetallic ores have varying degrees of grindability. When the particle size distribution of the crushed ore is unreasonable, sufficient liberation of useful minerals necessitates an increase in the grinding time, resulting in
Shuai Ma   +7 more
doaj   +1 more source

Estimating Potential Output in Chile: A Multivariate Filter for Mining and Non-Mining Sectors [PDF]

open access: yesIMF Working Papers, 2016
Using a multivariate filter, we estimate potential growth rates in Chile’s mining and non-mining sectors. Estimates for the mining sector incorporate information on copper prices, whereas estimates for non-mining reflect information on inflation and unemployment rates.
Marika International Monetary Fund   +1 more
openaire   +1 more source

Home - About - Disclaimer - Privacy