Results 21 to 30 of about 33,130 (248)
工程科学学报, 2021 Anshan-type low-grade hematite ore is one of the most important types of iron ore in China. It is usually separated by a combined process of gravity concentration-magnetic separation-reverse flotation.
Rui-yang ZHANG +4 more
doaj +1 more source
Entropy, 2023 Typical human-scaled considerations of thermodynamic states depend primarily on the core of associated speed or other relevant distributions, because the wings of those distributions are so improbable that they cannot contribute significantly to averages. However, for long timescale regimes (slow time), previous papers have shown otherwise. Fluctuating
Christopher Essex, Bjarne Andresen
openaire +5 more sources
Fixed-Time Leader-Following Flocking for Nonlinear Second-Order Multi-Agent Systems
IEEE Access, 2020 This work focuses on the fixed-time leader-following flocking for multi-agent systems. Different from the previous continuous inherent dynamic f(xi,vi,t) for agent i, a new nonlinear discontinuous one is firstly proposed in this paper.
Zhenghua Xu, Hongliang Liu, Yong Liu
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Tailings facility disclosures reveal stability risks
Scientific Reports, 2021 Tailings facility failures represent a significant risk to the environment and communities globally, but until now little data was available on the global distribution of risks and characteristics of facilities to ensure proper governance. We conducted a
Daniel M. Franks +8 more
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Study on comprehensive utilization of tailings by using bioleaching and microbial-cementation
Case Studies in Construction Materials, 2023 This study aims to realize copper recovery from tailings and make further application of bioleached tailings residues as microbial-cemented tailings backfilling materials (MCTB).
Wei Chen +4 more
doaj +1 more source
Offsetting of CO₂ emissions by air capture in mine tailings at the Mount Keith Nickel Mine, Western Australia: Rates, controls and prospects for carbon neutral mining [PDF]
, 2014 The hydrated Mg-carbonate mineral, hydromagnesite [Mg₅(CO₃)₄(OH)₂•4H₂O], precipitates within mine tailings at the Mount Keith Nickel Mine, Western Australia as a direct result of mining operations.
K. Ulrich Mayer +25 more
core +2 more sources
Study on the Solution of Sand Slabbing in the Tailing Sand Bin of Huanggang Iron Ore Mine
Advances in Civil Engineering, 2022 In order to improve the tailings utilization rate and realize full tailings’ filling in Huanggang iron mine in Inner Mongolia, a flocculation settlement system was added, which resulted in silting and consolidation of tailings in sand silts.
Xin Zhu +6 more
doaj +1 more source
Regional Distribution and Causes of Global Mine Tailings Dam Failures
Metals, 2022 Tailings ponds are one of the three major production facilities in metal mines. The volume of tailings increases year by year, but the storage capacity of existing tailings ponds is limited.
Shui-Quan Lin +6 more
doaj +1 more source
De-licensing of Oil Sands Tailings Dams. Technical Guidance Document [PDF]
, 2014 Some of the oil sands tailings dams, licensed under the Alberta dam safety regulations, have reached the end of their service life and under a responsible environmental stewardship should be closed and reclaimed.
Oil Sands Tailings Dam Committee
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Applied Sciences, 2021 The stability of tailings dam will be affected by the internal erosion under unsteady seepage caused by heavy rainfall infiltration which changes the physical and mechanical properties of tailings.
Rong Gui, Guicheng He
doaj +1 more source