A reliable indicator of the air quality in offices, classrooms, or living rooms is the CO2 content. In fresh air, the ...

A guide for engineers balancing performance, reliability, and manufacturability across today’s smart systems By Barry Brents, ...

NORFOLK, Va. — Most summer days, you hear us talk about “humidity” when describing how the air feels. While many people are familiar with the term relative humidity — the percentage of water vapor in ...

Hot, sticky and unrelenting: That has been the experience for much of the country this summer, including more than a dozen states that had record high humidity in July. Last month was muggier than ...

Heat and humidity will once again smother the eastern half of the country this week, pushing the heat index to dangerous levels for tens of millions of people. In the Midwest, the humidity will be ...

The first major heat wave of summer has enveloped much of the midwestern and eastern U.S. in a brutal “dome” of record temperatures and high humidity. The dome phenomenon happens when weather ...

Some hot days feel even worse thanks to high humidity, trapped heat and dew points. Cities are especially vulnerable. By Nazaneen Ghaffar Nazaneen Ghaffar is a reporter on The Times’s weather team. It ...

The Chicago area is bracing for extreme heat and humidity in the coming days, and experts said it could become more common with changing weather patterns. A Chicago doctor said extreme humidity ...

Abstract: In this paper, a micro-capacitance detection circuit based on 40nm CMOS process is designed for capacitive humidity sensor. The circuit can detect the small change of capacitance value when ...

(Nanowerk Spotlight) Each exhaled breath carries distinct signatures of human activity - quick and shallow during exercise, deep and regular in sleep, irregular while speaking. These breathing ...