One thing that can show on a CT scan or X-ray is a degree of haziness referred to as opacity. This can indicate a concern, but your doctor may want more testing to determine the cause of any potential ...

Flyash and condensed sulfur trioxide (SO 3) are the major components of flue gas that contribute to the opacity of a coal plant’s stack emissions (stack opacity). Estimates are that 75% to 85% of ...

Researchers have pioneered an innovative method using helioseismology to measure the solar radiative opacity under extreme conditions. This groundbreaking work not only reveals gaps in our ...