The U.S. Drug Enforcement Administration warned Americans Tuesday that fentanyl is increasingly mixed with a dangerous array of synthetic substances that can limit the effectiveness of ...
Abstract: Two-dimensional (2D) direction-of-arrival (DOA) estimation using sparse arrays shows advantages in reducing hardware costs and enhancing degrees-of-freedom. However, most current studies ...
Abstract: We present a novel augmented reality (AR) display system utilizing a holographic optical element (HOE)-based approach, featuring seamless switching between three-dimensional (3D) and ...
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This site displays a prototype of a “Web 2.0” version of the daily Federal Register. It is not an official legal edition of the Federal Register, and does not replace the official print version or the ...
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