When The 74 started looking for Bright Spots — public schools that are beating the odds helping low-income students learn to read — it was hard to miss how well charter schools performed. Charters ...

Abstract: This letter introduces the design of a novel broadband subharmonic mixer operating at 220–330 GHz, which can be applied in the fields of spectrum analysis and wireless communication systems.

Abstract: Optical neural networks (ONNs) have attracted great attention due to their low energy consumption and high-speed processing. The usual neural network training scheme leads to poor ...