Background Use of irrigation catheters increases the power supply energy to create transmural injury [Jais P., Shah D.C., Haissaguerre M. et al., 2000]. However, these data are based on the catheter procedures and concomitant monopolar endocardial ablation [Deneke T., Khargi K. et al., 2007]. The benefits of using irrigation during bipolar concomitant ablation has no reflection in the literature.

Objects: To evaluate the relationship between bipolar temperament (BT) and the behavioral and psychological symptoms of dementia (BPSD) in Alzheimer’s disease (AD). Backgrounds: In Japan, no medicine is permitted for BPSD in AD. And there was no study that evaluated the relationship BT and BPSD in AD. Methods and Results: We evaluated 65 AD patients using demographic data (sex, educational leve...

This paper proposes a new compact electrothermal model of the Insulated Gate Bipolar Transistors (IGBT) dedicated for SPICE (Simulation Program with Integrated Circuit Emphasis). makes it possible to compute non-isothermal DC characteristics considered transistor and waveforms terminal voltages currents investigated device its internal temperature at transients. takes into account nonlinearity ...

This paper proposes a new zero-current-switching (ZCS) pulsewidth modulation (PWM) switch cell that has no additional conduction loss of the main switch. In this cell, the main switch and the auxiliary switch turn on and turn off under zero-current condition. The diodes commutate softly and the reverse-recovery problems are alleviated. The conduction loss and the current stress of the main swit...

In this study, a Mahalanobis distance (MD)-based anomaly detection approach has been evaluated for non-punch through (NPT) and trench field stop (FS) insulated gate bipolar transistors (IGBTs). The IGBTs were subjected to electrical–thermal stress under a resistive load until their failure. Monitored on-state collector–emitter voltage and collector–emitter currents were used as input parameters...

Directed hypergraphs are widely used as a tool to solve andmodel the problems appearing in computer science and operations research. Bipolar neutrosophic models are more flexible and applicable because these models study neutrosophic behavior positively as well as negatively. In this research study, we present a new frame work for handling bipolar neutrosophic information by combining the bipol...

Alternating current (AC) electrical drives mainly require smaller (or torque) ripples and lower total harmonic distortion (THD) of voltage for excellent drive performances. Normally, in practice, to achieve these requirements, the inverter needs be operated at high switching frequency. By operating frequency, size filter can reduced. However, which oftenly employs insulated gate bipolar transis...

We present near-IR narrow-band continuum-subtracted images in the H2 2:122 m, and Br 2:166 m emission lines for a sample of 15 bipolar planetary nebulae. H2 emission was definitely detected for most of the objects in this sample (13 out of 15). The very high H2 detection rate supports the idea that bipolar planetary nebulae have important reservoirs of molecular material and offer suitable phys...

Cholinergic agonists and vagal stimulation potentiate the inducibility of atrial fibrillation. To describe the activation patterns and determine the mechanisms that sustain cholinergic fibrillation, tachyarrhythmias were induced with a single extrastimulus in the isolated Krebs-Henseleit-perfused canine right atrium (n=11) at increasing concentrations of acetylcholine (from 10-7-5 to 10-4-5 M)....

The Screen-Grid Field Effect Transistor (SGrFET) is a planar MOSFET-type device with a gating configuration consisting of metal cylindrical fingers inside the channel perpendicular to the current flow. The SGrFET operates in a MESFET mode using oxide insulated gates. The multi-gate configuration offers advantages for both analog and digital applications, whilst the gate cylinder holes can be ex...