We have developed a model of the high-current breakdown of the integer quantum Hall effect, as measured in contactless experiments using a highly-sensitive torsion balance magnetometer. The model predicts that, for empirically “low-mobility” samples sm,75 m2 V−1 s−1d, the critical current for breakdown should decrease with, and have a linear dependence on, temperature. This prediction is verifi...

An aluminum nanowire switches from superconducting to normal as the current is increased in an upsweep. The switching current (I(s)) averaged over upsweeps approximately follows the depairing critical current (I(c)) but falls below it. Fluctuations in I(s) exhibit three distinct regions of behaviors and are nonmonotonic in temperature: saturation well below the critical temperature T(c), an inc...

Background: Positioning of premature newborns significantly affects their health status. However, the most suitable position remains controversial. The current study aimed to compare the effect of supine and prone positions on oxygen saturation and vital signs in premature newborns. Methods: In this crossover clinical trial, a total of 22 new...

Common-mode choke (CMC) plays an important role in suppressing the leakage current produced during operation of pulse width modulation (PWM) inverters. However, when common-mode path exhibits a large series stray capacitance, particularly capacitance by long shielded cables, CMC core reaches magnetic saturation. This paper presents technique selecting suitable carrier frequency for inverter to ...