Abstract: In this article, a novel approach is proposed to address sensors’ significant challenges by introducing a portable planar microstrip sensor based on a dual-bandpass filter (BPF). This sensor ...

Abstract: Based on the theoretical foundation of microwave time-domain transmission, a novel sensor for detecting water content in crude oil is designed. The principles of measuring the water content ...

You probably have a few water bottles stashed for an emergency, but if you rely on sensitive medical gear such as a CPAP machine, that isn't going to work. In a disaster scenario, finding a gallon of ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Tim Heffernan Tim Heffernan is a writer who covers air and water quality and ...

Scroll or swipe down to find out how to make a feast for the birds in your garden. There are three different bird feeders you can make with your grown-up. Take a look below, you might want to make all ...