A chemical and spectroscopic comparison of two purple gem spinel samples, one of them the first reported example of a spinel with a saturated purple color caused predominantly by chromium and cobalt.

We realized color-temperature tunable organic light-emitting diodes (OLEDs) through an extremely simplified sandwich structure with only three organic materials. The correlated color temperature (CCT) ...

Absence of nearby light sources while capturing an image will degrade the visibility and quality of the captured image, making computer vision tasks difficult. In this paper, a color-wise attention ...

Deported Purple Heart Army veteran hopes for U.S. return from South Korea By CNN Newsource Published July 5, 2025 11:55 am ...

INDEPENDENCE, Missouri (KSHB) — A long-lost Purple Heart medal that represents the life of a Kansas City World War II pilot is now in safe hands, thanks to a stranger who spotted it for sale at ...