An international team of scientists led by researchers from Germany has observed the earliest steps of charge separation in a ...

This paper presents a vibration energy converter with a double frequency-up conversion (FUC) mechanism for enhanced self-powered human motion sensing. The system primarily consists of two ...

The global integration lets 700 million members swap Marriott Bonvoy points and Flipkart SuperCoins, but the 2:1 exchange ...

The July 26 killing of a 16-year-old Madison youth by a man armed with a handgun converted to fire as a fully-automatic weapon underscores the increasing frequency of those weapons showing up in ...

Here, we propose a frequency conversion mechanism based on time-varying metasurfaces, an emerging frontier in metamaterial research. We show how temporal properties of metasurfaces can effectively ...

A simple frequency doubler circuit produces a square wave output with a precise 50 percent duty cycle.

With the advantages of ultracompact footprint and low energy consumption, nanowire (NW) lasers hold great promise for constructing miniaturized photonic integration systems. Limited by the gain ...

For such a conversion, expensive analog-to-digital converters (ADCs) are commonly used. The purpose of this article is to develop and present a simplified technique for direct conversion of the analog ...