This paper proposes an estimator of factor strength and establishes its consistency asymptotic distribution. The is based on the number statistically significant loadings, taking multiple testing into account. Both cases observed unobserved factors are considered. small sample properties proposed investigated using Monte Carlo experiments. It shown that estimation inference procedures perform w...

We perform noise spectroscopy of a Josephson parametric oscillator (JPO) by implementing microwave homodyne interferometric measurement scheme. observe the fluctuations in self-oscillating output field JPO for long 10-s time interval single-shot and characterize phase amplitude noise. Furthermore, we investigate effects pump strength on power spectra JPO. find strong with $1/{f}^{2}$ characteri...

MRI scanners enable fast, noninvasive, and high-resolution imaging of organs and soft tissue. The images are reconstructed from NMR signals generated by nuclear spins that precess in a static magnetic field B0 in the presence of magnetic field gradients. Most clinical MRI scanners operate at a magnetic field B0 = 1.5 T, corresponding to a proton resonance frequency of 64 MHz. Because these syst...

the ever increasing rate of power consumption has led to an increase in public exposure to extremely low frequency magnetic fields (elf-mfs) and brought severe concerns about their health effects. considering previous studies and the facts about potential health effects of these fields, the present study aimed to evaluate the elf-mf flux densities from power distribution lines near hospitals i...