Jiangxi Copper (China)

Intelligent Ore Sorting Method Based on Multi-Feature Fusion of Dual-Energy X-Ray Responses

The conventional attenuation-ratio feature R remains affected by particle thickness, material heterogeneity, and beam hardening in practical dual-energy X-ray transmission (DE-XRT) measurements. This study proposes an ore-sorting method based on multi-feature fusion of dual-energ...

Underwater image enhancement via boundary-aware gradient domain reconstruction and intuitionistic fuzzy set similarity measure-guided wavelet fusion for lowlight conditions

Due to the light absorption and scattering effects of water in dark underwater environments, along with the sensitivity limitations of imaging devices, captured images generally suffer from color distortion, low contrast, blurred details, and uneven illumination. These issues sev...

Steric Hindrance-Controlled Selective Adsorption of Amine Surfactants: The Crucial Role of Cation Vacancies on Aluminosilicate Mineral Surface

Abstract Selectively regulating feldspar surface hydrophobicity remains a key challenge for the flotation separation of quartz from feldspar. This challenge is closely related to its heterogeneous surface chemistry and the limited understanding of how cation leaching affects coll...

Highly Selective Capture of ReO4– by a Conjugated Amine-Based Polymer Synthesized via a One-Pot Strategy

Abstract Given the highly dispersed occurrence of rhenium in the natural environment, it is commonly encountered in conjunction with other minerals and primarily occurs as perrhenate ions (ReO4–) in the acidic waste solutions produced by nonferrous metallurgical operations. The a...

Hygrothermal reconfiguration of radial chemo-mechanical gradients in arc-shaped natural fiber-reinforced bamboo composite for flattening and panel manufacturing

It remains unclear whether hygrothermal softening controls the deformation of bamboo as a natural fiber-reinforced composite by reshaping its radial physicochemical structures and mechanical-gradient heterogeneity. Here, hygrothermally softened arc-shaped bamboo strips were inves...

Groundwater environmental assessment of cemented backfill prepared from decyanidated tailings: evidence from 30-day static immersion tests

Decyanidated tailings are increasingly used as aggregates for underground cemented backfill, but their potential effects on groundwater quality remain uncertain. In this study, cemented backfill samples prepared from decyanidated tailings from Suichang Gold Mine were subjected to...