Abstract: Noise interference severely limits the accuracy and stability of gas concentration measurement in direct absorption spectroscopy (DAS). In this article, an end-to-end methane concentration ...

A political rematch in the Triangle is shaping into an intensely competitive primary election as two Democrats with solidly liberal records seek to position themselves as the better choice to fight ...

Add Yahoo as a preferred source to see more of our stories on Google. U.S. Rep. Valerie Foushee, left, faces a challenge in the Democratic primary for North Carolina’s 4th Congressional District from ...

AI-generated summary reviewed by our newsroom. Read our AI Policy. North Carolina’s primary election is March 3, 2026, with early voting starting Feb. 11, 2026. Here are stories on candidates, voting ...

North Carolina's bluest congressional district is once again home to a contentious and expensive primary between two Democrats - each of whom claims to be the progressive leader the state needs to ...

(The Center Square) – Democracy, living wage, health care, education and the environment are the leading shared campaign platforms of candidates in North Carolina’s 4th Congressional District’s ...