A laser gas sensor with phase compensation in free space is designed based on a half-mirror and mixer in this study. The half-mirror is employed to split the returned beam into transmitted and ...

Praziquantel (PZQ) is widely used to treat schistosomiasis. However, this chiral active pharmaceutical ingredient (API) is still produced as a racemic compound while only the (R)-enantiomer is active.

Oil-gas–water three-phase slug flow characterization and flow rate metering is an important issue highly related to the production safety and efficiency in petroleum industries. In this article, to ...

Four climbers went up and down Everest in under a week with the help of xenon gas—a record-breaking ascent that has ignited controversy in the mountaineering world.