It’s pretty easy to take a balloon, fill it up with helium, and send it up in to the upper atmosphere. It’s much harder to keep track of it and recover it when it falls back to Earth. If you’re trying ...

Abstract: Respiratory rate (RR) monitoring has received widespread attention in medical field. Complex, expensive, and bulky commercial equipment limits the monitoring cost. To take full advantage of ...

Abstract: A surface plasmon resonance (SPR) sensor based on a polyvinyl alcohol-graphene oxide (PVA-GO) composite film and a polydimethylsiloxane (PDMS) film was proposed for simultaneous measurement ...

The city says its "Safe and Bright Residential Light" program promotes safety and helps people light up dark areas like alleys and sidewalks. The Democrats who voted against the War Powers Resolution ...

When temperatures rise, this is the number to keep an eye on. By Jesus Jiménez When heat intensifies, all eyes are focused on the temperature. But often, experts say, it’s the heat index that should ...

The news you need to know today — and the stories that will stick with you tomorrow. Plus, special series and behind-the-scenes extras from Here & Now hosts Robin Young and Scott Tong with help from ...

Traveling in cold weather conditions can be life threatening. The information provided here is designed for educational use only and is not a substitute for specific training or experience. Princeton ...

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voltage and current are displayed after switching on (readings) to protect the OLED display, it is switched off after 60s if the rotary encoder is not used. It can be switched on again by pressing the ...