The fact that there exists a core sinusoidal oscillator at the heart of Saito’s double-screw hysteresis chaotic oscillator is demonstrated. By applying Bruton’s transformation to the active linear part of the circuit, which is shown to be a classical LC-R negative resistor sinusoidal oscillator, an inductorless realization based on a frequency-dependent negative resistor (FDNR) is obtained. The...

2 V has been generated from four FFF printed “piezo leaves” through 3 min of fan blowing.

The piezo-phototronic effect can modulate the dynamics of photo-generated carriers by utilizing external-strain–induced piezoelectric charges (piezo-charges). Most current researches focus on modulation optoelectronic properties p–n junctions. There are only a few studies focusing metal-oxide–semiconductor (MOS) structures. In this work, PEDOT:PSS/Al2O3/n-ZnO tri-layer MOS tunneling junction is...

We consider circular planar graphs and circular planar resistor networks. Associated with each circular planar graph F there is a set n(F) = { (P; Q) } of pairs of sequences of boundary nodes which are connected through F. A graph F is called critical if removing any edge breaks at least one of the connections (P: Q) in n(F). We prove that two critical circular planar graphs are Y-A equivalent ...

An elastically deformable bearing ring is investigated. The piezo-actuated shaping of the elastic as well journal motion are coupled and determine height lubrication gap which takes a crucial part in theory hydrodynamic lubrication. influence active-dynamic on rotor dynamic behaviour has been investigated [1], especially for two-lobe bearing. present investigations aiming at active-static ring,...