The suitability of residue sand (the coarse fraction remaining from Bayer's process of bauxite refining) for constructing the surface cover of closed bauxite residue storage areas was investigated. Specifically, its properties as a medium for plant growth are of interest to ensure residue sand can support a sustainable ecosystem following site closure. The geochemical evolution of the residue s...

Land cover and land use surrounding fragmented habitat can greatly impact species persistence by altering resource availability, edge effects, or the movement of individuals throughout a landscape. Despite the potential importance of the landscape matrix, ecologists still have limited understanding of the relative effects of different types of land cover and land uses on species patterns and pr...

Background. The Cretaceous of southern Europe was characterized by an archipelago setting with faunas of mixed composition of endemic, Laurasian and Gondwanan elements. However, little is known about the relative timing of these faunal influences. The Lower Cretaceous of East-Central Europe holds a great promise for understanding the biogeographic history of Cretaceous European biotas because o...

A fast and accurate bauxite recognition method combining an attention module a clustering algorithm is proposed in this paper. By introducing the K-means into YOLOv4 network embedding SE module, we calculate corresponding anchor box value, enhance feature learning ability of to bauxite, automatically learn importance different channel features, improve accuracy target detection. In experiment, ...

Abstract The mining machine for bauxite is the key equipment mechanized of underground ore. machines shearing and loading ore have been studied in this paper from three aspects: determination technical parameters, in-situ tests, optimization, improvement. Mechanical physical parameters ore, such as high tensile strength, no-cleavage, abrasion properties, a great impact on machine. conventional ...

Abstract The processing of bauxite ore into aluminium produces a large amount waste materials. Red mud as from the alumina industry is problem that damages hydrological function soil. can still be utilised according to its composition and characteristics. In this study, red originating Tanjungpinang characterised using several techniques (Scanning Electron Microscopy-Energy Dispersive X-ray (SE...