Supplier selection serves as the most critical factor in supply chain, which involves several criteria. The of right supplier supports company's competition. To support decision-making, a credible and practical decision-making method is thus required. This study aims to integrate Analytic Hierarchy Process (AHP) PROMETHEE II methods for selection. In utilizing this method, AHP utilized determin...

Recovery of platinum from spent catalysts can meet the comprehensive recycling secondary resources. and enrichment Al2O3 carrier catalyst using matte smelting for pyrite-acid leaching process were studied. In melting process, effects pyrite, CaO, quartz sand, Na2B4O7 dosage on recovery rate Pt investigated. effect H2SO4 concentration, temperature, time, liquid/solid (L/S) ratio enriching effici...

ABSTRACT We study the enrichment of interstellar medium (ISM) with rapid neutron capture (r-process) elements produced in binary star (BNS) mergers. use a semi-analytic model to describe galactic evolution, merger rates and time delay distributions BNS mergers consistent latest population synthesis models. In order dispersion relative abundances r-process iron, we applied turbulent mixing schem...