Molecular sieve catalysts containing transition metals have been attracting attention for their potential applications in various fields, including environmental and industrial catalysis. A Cu-Ce-Zr/SAPO-34 series of molecular were prepared by the impregnation method, effect Zr introduction on selective catalytic reduction NO Cu-Ce/SAPO-34 was explored. Through characterization methods, physica...

This paper presents the influence of production parameters and analysis ZrC coatings on Monel®400 substrate. The effects laser beam power microstructure, chemical composition, corrosion resistance selected mechanical properties such as microhardness wear were investigated. investigation consisted composite using processing pre-coatings made in paste form a nickel based alloy (Monel®400). In stu...

Abstract Sorption kinetics of organic compounds on biochars is important for understanding the retardation mobility and bioavailability compounds. Herein, sorption 1,3,5-trinitrobenzene prepared from 200 to 700 °C was investigated explore process. Loose partition matrix condensed were formed at relatively low moderate temperatures, respectively. However, produced high temperatures rich pore str...

BACKGROUND The aim of this study was to determine the effect of culture medium osmolality, in the range known to occur in the male and female reproductive tracts, on human sperm tyrosine phosphorylation and sperm-zona pellucida (ZP) interaction in vitro. METHODS Motile sperm (2x10(6)), selected by swim-up from semen of normozoospermic men with normal sperm-ZP binding, were incubated with or w...