Three waveforms for transthoracic defibrillation are assessed and compared: the Pulsed Biphasic Waveform (PBW), the Rectilinear Biphasic Waveform (RBW), and the “lossless” constant current (LLCC) pulses. Two indices are introduced: 1) kf = W/W0 – the ratio between the delivered energy W and the energy W0 of a rectangular pulse with the same duration and electric charge; 2) ηC = W/WC0 – the leve...

This study presents a supervisory genetic algorithm (SGA) control system for a linear ultrasonic motor (LUSM) driven by a two-inductance two-capacitance (LLCC) resonant driving circuit. First, the motor configuration and driving circuit of an LUSM are introduced, and its hypothetical dynamic model is described briefly. Since the dynamic characteristics and motor parameters of the LUSM are highl...

An equation for vertical vc.locity is app1ic.d to data from 850, 500, and 200 mb. for calc~~lationa of vertical velocity and divergcsnce in special cases characterizcad by prononnccid fnilurca of barotropic forecasts. The results of the calculations show t,hat a norl-davclopmc,nt situation was sdequatrly described by the equivalent-barotropic picture of a single quasi-horizontal surface of rlor...