China’s 6G engineers have built a special metasurface system that can bounce wireless signals around like a precision mirror to fill in dead spots, while still sensing people moving about – just like ...

Abstract: This paper proposes monitoring leakage in underground pipes using ZigBee in Wireless Sensor Networks. Leakage in underground pipes is a significant concern for water utilities as undetected ...

Abstract: In this paper, characterization of an acoustic wireless sensor for leakage detection in underground pipes is presented. The sensor is based on an acoustic sensing element, called a ...

A mine-hunting gadget once honed on battlefields is about to start cruising past San Antonio’s front yards, this time in the name of public health. The San Antonio Water System is rolling out ...

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Cross threading occurs when the bolt is misaligned with the threads in the nut. It can destroy the threads, or cause the nut to jam. The standard beveled end process makes cross threading a ...

One of the most important metrics on a Fitbit tracker is the Estimated Oxygen Variation—and now that every tracker is fitted with an SpO2 sensor, everyone can take advantage. Blood oxygen may be used ...

Most any insurance company will tell you that while fire might be a homeowner’s greatest fear, water is the far more common cause of property damage. And that’s true even if you don’t live in a FEMA ...