Abstract: Due to the inherent $\pi $ -phase constraint in phase unwrapping algorithms, the dynamic strain range of phase-sensitive optical time domain reflectometry ($\Phi $ -OTDR) is significantly ...

WASHINGTON (AP) — The United States under the Biden and Trump administrations has provided at least $21.7 billion in military assistance to Israel since the start of the Gaza war two years ago, ...

RGB LED Is Getting Its Time in the Spotlight. Will TV Shoppers Tune In? Vendors tout advances in color and brightness in the new display technology, but they lack a compelling sales pitch about its ...

LONDON (AP) — U.K. police were given extra time Saturday to question four people arrested on suspicion of terror offenses after an attack on a synagogue in ...