The process parameters of aluminum alloy ladder bowl with viscous pressure forming and solid metal punch forming were numerically simulated by commercial finite
An Archaeopteryx-like theropod dinosaur newly found from western Liaoning Province in northeastern China would make an unusual, if not unwelcome, gift for the 1
Experiments are reported on the effects of flow intensity, obstacle alignment and cross-section geome try on the equilibrium scour depth around abutments. The e
On the frigid land of Antarctica, a man in a blue jacket and black rain boots was tottering againstalmost blinded by the snowflakes but apparently looking for s
Helium isotope compositions of the mantle xenoliths and megacrysts in the Cenozoic basalts in the eastern China were measured. The samples were collected from L
In late October 2011, the distinguished glaciologist Lonnie Thompson from Ohio State University depicted to BCAS reporter XIN Ling how environment has been chan
The Aiketik Group, distributed at the western end of the South Tianshan Mountains, China, is an important lithostratigraphic unit involved in the South Tianshan