There have been many different ideas presented for increasing the acoustic output of a piezo buzzer or ultrasonic transducer. Most of them involve rather complicated circuitry that drives up the total ...
Scientists at Germany’s Jülich Institute for Energy and Climate Research (IEK-5) have raised the open circuit voltage of perovskite solar cells to a record of 1.26 V. The researchers say open circuit ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback