Fluorocarbon surfactants could change coal structure and improve wettability characteristics, thus, it plays a significant role in coal dust prevention and control.Composite dust suppressant based on fluorocarbon surfactant (FS-31) enhancement was developed, and the surface tension and contact angle characteristics were analyzed.Based on the infrar
Abstract Suspensions of nanoparticles (i.e., particles with diameters < 100 nm) in liquids, termed nanofluids, show remarkable thermal and optical property changes from the base liquid at low particle loadings.Recent studies also indicate that selected nanofluids may improve the efficiency of direct absorption solar thermal collectors.To determi
Alkali-activated slag (AAS) characterized by fast hardening and high early strength has potential application prospects in concrete canvas (CC), where a non-stirring molding method is required to prepare mortar.This paper provides a new method for hp 14a-na0031wm the preparation of alkali-activated slag mortar (AASM) by non-stirring (sprinkling-mol
Background/Aim.The beneficial effects of medicinal plants are well-known from the ancient times.However, expansion of phytopharmacy and phytotherapy occured during the last decades.Medicinal plants can absorb environmental contaminants from the ground and consequently may cause harmful effects on human health.Quality control usually comprises stand