The breakthrough positions China among a handful of nations mastering high-precision lunar-distance ranging, which experts say is critical for future lunar missions and deep-space navigation. "This ...

June 20, 2025 — Fitness trackers often fail people with obesity by underestimating their energy burn, leading to discouraging results and misguided health data. A scientist's frustrating ...

Femtosecond neodymium-doped fiber laser operating in the 894-909-nm spectral range Abstract: We demonstrate a practical ultrafast Nd-doped fiber laser operating in the 894-909-nm spectral range. Using ...

Abstract: A novel fiber Bragg grating (FBG) sensor configuration using three broadband light sources of different wavelength bands for the interrogation of FBG sensors distributed over 75 km of fiber ...