The study's authors surveyed 12,395 students and analyzed nine risk behaviors, including excessive alcohol use, illegal drug use, heavy smoking, high media use and truancy.
A trailing spacecraft then flew through the cloud of debris and dust thrown up by the collision and used its instruments to analyze what was inside before it also struck the moon.
This paper analyzes the surrounding rock characteristics of single shell lining only from the mechanical mechanism aspects using the discrete element software of UDEC.
The formation of thin coal shell that is formed by aerofoil cracks engendered at the tip of primary cracks in the entry's surrounding coal is analysed.
This paper gives a precise solution to the coupled vibration of a cylindrical shell conveying fluid and surrounding with a medium under the condition of plane strain.