Anaphalis marguuritacea, a Chinese medicinal herb, was extracted by supercritical carbon dioxide and steam distillation.

Here we discuss the method of preparation of golden pearl pigment by ferric oxide's wrapping on titanium-mica,and also we research the quatity of ferric oxide,temperature,pH which in- fluence the quality of product.

Here we discuss the preparation method of green pearl pigment by de- positing chromium oxide on the micatitanium,and research the wrap- ping quantity of chromium,reaction tempture,calcining tempture,and so on which affect the quality of product.

Comparison of welding temperater field between bainite rail and pearlite rail;

Recent evolution of pearlite transformation theory;

Evolution of pearlite microstructure during warm cross wedge rolling;

Process of research work regarding synthesis and applications of stearic acid glycol ester type pearlescing agent;

The result showed that the pearlescent effect was affected by the preparation process as well as the pearlescing agent content,and it was best when the dosage is 2%.