Two new oonopid spiders (Arachnida, Araneae) from Xishuangbanna tropical rainforest, Yunnan, China.

A new species of the genus Tong & Li, 2015 and a new species of the genus Tong & Li, 2007 are recorded from Xishuangbanna, Yunnan Province: Tong & Li, (♂♀) and Tong & Li, (♂♀). An identification key to species of the genus from Xishuangbanna is provided. Detailed diagnoses, descriptions, and photomicroscopy images of new species are provided.

Prediction of Corrosive Fatigue Life of Submarine Pipelines of API 5L X56 Steel Materials.

Corrosive fatigue failure of submarine pipelines is very common because the pipeline is immersed in a sea environment. In Bohai sea, many old pipelines are made of API 5L X56 steel materials, and it is necessary to provide an accurate method for predicting the residual life of these pipelines. As Paris law has been proven to be reliable in predicting the fatigue crack growth in metal materials, the two constants in Paris law for API 5L X56 steel materials are obtained by using a new proposed shape factor based on the analysis of experimental data measured from fatigue tests on compact tension specimens immersed in the water of Bohai sea.