Nowadays, no state in the world is able to work on creation and implementation of artificial intelligence (AI) isolation from others. AI technologies are used solve general highly specialized tasks various spheres society. In process assessing (identifying) complex objects management analysis, there a high degree priori uncertainty regarding their small amount initial data describing them. At s...

This paper presents an improved linearity variable-gain amplifier (VGA) in 0.18-µm CMOS technology. The lineari­ty improvement is resulted from employing a new combinational technique, which utilizes third-order-intermodulation (IM3) cancellation mechanism using second-order-intermodul­ation (­IM2) injection, and intermodulation distortion (IMD) sinking techniques. The proposed VGA gain cell co...

Correction for 'Dynamic ruffling distortion of the heme substrate in non-canonical heme oxygenase enzymes' by Amanda B. Graves et al., Dalton Trans., 2016, 45, 10058-10067.

PURPOSE To investigate the effect of laser spot size on the outcome of aberration correction with scanning laser corneal ablation. METHODS Numerical simulation of ablation outcome. RESULTS Correction of wavefront aberrations of Zernike modes from second to eighth order were simulated. Gaussian and top-hat beams of 0.6 to 2.0-mm full-width-half-maximum diameters were modeled. The fractional ...

To ensure that linearity is maintained to a high degree, it is necessary to examine the nature of amplifier distortion. Audio amplifier distortion is of concern for many years. The conventional feedback techniques used at audio frequencies are not applicable to many RF amplifiers due to following problems: 1. Stability at high bandwidth; 2. Cost for high gains in RF stages. Memory less or Insta...

Direct gating of mechanoelectrical transduction channels by mechanical force is a basic feature of hair cells that assures fast transduction and underpins the mechanical amplification of acoustic inputs, but the associated non-linearity - the gating compliance - inevitably distorts signals. Because reducing distortion would make the ear a better detector, we sought mechanisms with that effect. ...

Introduction Echo-planar imaging (EPI), used in most functional MRI (fMRI) studies, has several major limitations, including 1) geometric distortion, 2) low spatial-resolution, and 3) low anatomic resolvability, as compared with structural MRI data. Because of these limitations, it is difficult to accurately register EPI based fMRI data to structural images. For the same reasons, it remains cha...