Modern designof the earrings has prominently individual andartistic characteristics, and it brings new ones inthe choice of earrings materials, using variousmaterials to design earrings.

In this paper, the advance failure of a certain aircraft fork earrings was investigated The result showed that, this failure was occurred due to dis cooperation between earhole and peg, which caused glide abrasion and initiated fatigue crack In addition, the abrasion character is complex It consists of adherence abrasion, grain abrasion and touching fatigue abrasio

Experimental study on anti-viral activity of the water extract from Pitecollobium clypearia Benth;