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In this paper, a variable inertance and variable damping (VIVD) vibration control system with an electric circuit is proposed and analysed. By connecting a VD device and an inerter in series, a VI ...
4d
IEEE Spectrum on MSNReviving a 1970s Analog HP X-Y RecorderSo when I recently came across an early 1970s HP 7041A X-Y recorder while clearing out my parents’ attic, I knew that I just ...
Active Power Factor Correction (PFC) Circuit With Resistor-Free Zero-Current Detection - IEEE Xplore
An active power-factor correction (PFC) circuit is presented that employs a newly proposed resistor-free zero-current detection (ZCD). While the conventional ZCD requires either a sensing resistor or ...
A team of researchers from KAIST and Seoul National University has now developed a electronic ink that enables room-temperature printing of variable-stiffness circuits capable of switching between ...
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