China science, technology news summary -- May 16

BEIJING, May 16 (Xinhua) -- The following is a summary of published science and technology news of China.

SYNCHROTRON RADIATION FACILITY

China has upgraded the Shanghai Synchrotron Radiation Facility (SSRF), a key sci-tech infrastructure to reveal the mysteries of the microscopic world.

The construction of upgrades on the SSRF passed the national inspection and acceptance in east China's Shanghai o