SAN FRANCISCO—As families settled into their evening routines in late March, cooking dinner on electric stoves and flipping on their TV for the newest binge watch, the state’s energy grid was working ...

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 ...

Abstract: This paper presents a coding approach for achieving omnidirectional transmission of certain common signals in massive multi-input multi-output (MIMO) networks such that the received power at ...

You are given an m x n 2D integer grid and an integer x. In one operation, you can add x to or subtract x from any element in the grid. A uni-value grid is a grid where all the elements of it are ...