This article presents a comparative literature review of technologies for thickening gold-bearing flotation concentrates and recovering clarified process water. The approaches examined include conventional and high-rate thickening, optimisation of flocculation conditions and feedwell hydrodynamics,...

This review examines the current status and future prospects of technical-grade selenium purification technologies based on published scientific literature. The physicochemical principles and technological capabilities of vacuum distillation, fractional crystallization, zone refining, and combined...

Agglutinative languages encode a substantial part of grammatical relations through ordered affix sequences attached to lexical stems. Encoders in the BERT family can learn some of these regularities implicitly from large corpora, but conventional self-attention does not treat lemma, stem/root, part...

This paper proposes a two-branch hierarchical model for the complex assessment of the foreign-language oral speech of convicted persons based on segmental and suprasegmental indicators. The segmental branch combines the Goodness of Pronunciation (GOP) obtained from forced phonetic alignment, phone...