It is commonly recognized that correct transformer model (particularly topological one) a key element for any ferroresonance simulations. This paper represents line of reasoning by which reliable voltage (VT) can be constructed given substantial uncertainties in its parameters and characteristics. Starting with catalog data electric steels typical leakage inductances 6-kV VTs, an isolated neutr...

Stereotactic body radiotherapy (SBRT) is a novel treatment for otherwise resistant ventricular tachycardias (VTs). Different mechanisms of SBRT VT suppression were proposed that include radiation-induced fibrosis but also SBRT-triggered increase in myocardial conduction velocities without significant fibrotic changes. The study compared the morphologies and cycle lengths (CLs) inducible VTs dur...

In this paper we describe a new framework of feature compensation for robust speech recognition. We introduce Delta-Cepstrum Normalization (DCN) that normalizes not only cepstral coefficients, but also their time-derivatives. In previous work, the mean and the variance of cepstral coefficients are normalized to reduce the irrelevant information, but such a normalization was not applied to time-...

BACKGROUND Radiofrequency ablation of multiple or unmappable ventricular tachycardias (VTs) remains a challenge with unclear end points. We present our experience with a new strategy isolating core elements of VT circuits. METHODS AND RESULTS Patients with structural heart disease presenting for VT radiofrequency ablation at 2 centers were included. Strategy involved entrainment/activation ma...

BACKGROUND Ventricular tachyarrhythmias (VTs) are life-threatening events that result in hemodynamic compromise. Recurrence is common and may worsen a patient׳s clinical course despite appropriate treatment. This study aimed to examine the effectiveness of antiarrhythmic drugs for suppression of VTs. METHODS In this cohort study, eligible patients were those who were admitted to one of the ni...

2-Hydroxypropyl-beta-cyclodextrin (HPβCD) has gained recent attention as a potential therapeutic intervention in the treatment of the rare autosomal-recessive, neurodegenerative lysosomal storage disorder Niemann-Pick Disease Type C1 (NPC1). Notably, HPβCD formulations are not comprised of a single molecular species, but instead are complex mixtures of species with differing degrees of hydroxyp...

BACKGROUND In the absence of overt structural heart disease, most left ventricular outflow tract ventricular tachycardias (VTs) have a focal origin and are benign. We hypothesized that multiple morphologies (MMs) of inducible left ventricular outflow tract VT may indicate a scar-related VT that can mimic idiopathic VT. METHODS AND RESULTS Of 54 consecutive patients referred for ablation of su...

The discrimination between ventricular (VT) and supraventricular tachycardia (SVT) and the evaluation of their hemodynamic impact are essential issues in the arrhythmia management. A new pacing device features a tachycardia diagnostic system relying on simultaneous recording of the transvalvular impedance (TVI) and a special integrated electric signal derived by the whole set of endocardial ele...

I would first like to welcome Prof. Weihua Zhuang, 2023 IEEE Vehicular Technology Society (VTS) president, the issue of year IEEE Magazine . is a long-standing VTS volunteer (including positions such as editor-in-chief Transactions on Technology and vice president—publications), had pleasur...

Transient entrainment was demonstrated during 59 pacing events in 18 episodes of sustained uniform ventricular tachycardia (VT) while recording electrograms from the site of origin of tachycardia (LE-SOO). During entrainment, the morphology of the initial component of the LE-SOO was identical to the morphology observed during the tachycardia in 13 VTs (group I), but in five VTs (group II), the ...