A wireless, passive embedded sensor was applied for real-time monitoring of water content in civil engineering materials such as sands, subgrade soils, and concrete materials. The sensor, which ...

Current bulk acoustic microresonators offer improved resolution respect to Quartz Crystal Microbalance and Surface Acoustic Wave devices, but tend to be brittle during operation as sensors or requires ...

The sensors automatically detect rising water levels and provide early warnings about high water levels or flooding, and ...

Scientists have pioneered a new way to monitor sodium levels in the blood—without drawing a single drop. By combining terahertz radiation and optoacoustic detection, they created a non-invasive system ...