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Different Flotation Behaviors of Ca2+-Activated Quartz in the Presence of 18-Carbon Fatty Acids with Different Saturation

open access: yesKuangchan zonghe liyong, 2023
This is an essay in the field of mineral processing engineering. In this study, sodium palmitate, sodium oleate and sodium linoleate were applied as collectors for the flotation of Ca2+-activated quartz.
Liqun Peng   +5 more
doaj   +1 more source

Analysis of the Dynamic Stability of Tailing Dams: An Experimental Study on the Dynamic Characteristics of Tailing Silt

open access: yesApplied Sciences, 2023
With the improvement in tailing mining-grade requirements and in mineral processing technology, tailing materials tend to be fine-grained. Under the action of earthquakes, a tailing dam is prone to liquefaction, which endangers the safety and stability ...
Fuqi Kang   +6 more
doaj   +1 more source

Investigation of Anisotropic Behavior and Statistical Evolution of Acoustic Emission Energy during the Deformation of Layered Sandstone

open access: yesGeofluids, 2022
To further understand the anisotropic behavior of layered rock and the precursor characteristics of rock mass instability, a series of uniaxial compression experiments using a loading system and an acoustic emission system was conducted on sandstone ...
Shujian Li   +5 more
doaj   +1 more source

Dynamic mechanical properties and failure behaviors of brittle rock materials with a tunnel-shaped opening subjected to impact loads

open access: yesJournal of Materials Research and Technology, 2023
Since the surrounding rocks of underground tunnels are frequently suffered from the dynamic disturbance of mechanical percussion drilling and explosive blasting, it is significantly meaningful to investigate the mechanical properties and failure ...
Hao Wu   +6 more
doaj   +1 more source

Study on dynamic strength and liquefaction mechanism of silt soil in Castor earthquake prone areas under different consolidation ratios

open access: yesFrontiers in Earth Science, 2023
Under the Castor earthquake, there is a risk of liquefaction instability of saturated tailings, and the evolution of dynamic pore pressure can indirectly reflect its instability process.
Jiang Chunlin   +6 more
doaj   +1 more source

Deterioration mechanism of mechanical properties of phosphorite under different saturation duration

open access: yesFrontiers in Earth Science, 2023
In order to explore the deterioration mechanism of mechanical properties of phosphate rock under different saturation time, the degradation mechanism of phosphoric rock samples under different saturation duration was analyzed by laboratory test ...
Shujian Li   +7 more
doaj   +1 more source

Triaxial testing on water permeability evolution of fractured shale

open access: yesRoyal Society Open Science, 2021
A sound understanding of the water permeability evolution in fractured shale is essential to the optimal hydraulic fracturing (reservoir stimulation) strategies.
Menglai Wang, Dongming Zhang
doaj   +1 more source

Reasearch on Optimum Mix Proportion Waste Rock-tailings Backfill Materials Based on Orthogonal Tests

open access: yesKuangchan zonghe liyong, 2022
To improve the problem of solid waste in phosphate mines, the research on the optimum mix ratio for cemented filling experiment of waste rock and phosphorus tailings was studied by orthogonal tests.
Junjie Song   +4 more
doaj   +1 more source

Acoustic emission feature events during rock failure and their cumulative probability distribution: Case study of phosphate rock and granite

open access: yesFrontiers in Environmental Science, 2022
Rock mass failure is gradually becoming more common as the number of geotechnical engineering projects continues to increase. In this paper, the probability density distributions of initial and peak frequency events in the acoustic emission (AE) from two
Yi Zhang   +10 more
doaj   +1 more source

Growth pattern in children with X-linked hypophosphatemia treated with burosumab and growth hormone

open access: yesOrphanet Journal of Rare Diseases, 2022
Background X-linked hypophosphatemia (XLH) is characterized by increased serum concentrations of fibroblast growth factor 23 (FGF23), hypophosphatemia and insufficient endogenous synthesis of calcitriol.
Diana-Alexandra Ertl   +11 more
doaj   +1 more source

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