Ultrasonic imaging has become a very promising technology, and it has been widely applied in biomedicine, geology, and other fields due to its advantages of safety, nondamaging, and real time.

How to use a circuit breaker finder to understand your home's wiring (and why it matters so much) I almost paid for new wiring - until this Klein tool showed me the power was already there.

The smart water controller for metro water supply lines described in this work makes use of a relay, an ultrasonic sensor, a flow sensor, a solenoid valve, GPS, and GSM. The planned system is intended ...