Fig.2 Amplifier under test. Amplifiers can operate in classes A, B, AB, C, D, E and F [2]. We tested class A amplifier made by „Microwave Power Devices“, Model: LWA 4690-1/1837, based on bipolar devices (Fig.2). Usually, 1dB compression point, gain and two-tone third-order intercept point are measured as the amplifier figure of merit. As specified by manufacturer, the frequency range of the amp...

Background: Polymer gel dosimeters combined with magnetic resonance imaging (MRI) can be used for dose verification of advanced radiation therapy techniques. However, the uncertainty of dose map measured by gel dosimeter should be known. The purpose of this study is to investigate the uncertainty related to calibration curve and MRI protocol for MAGIC (Methacrylic and Ascorbic acid in Gelatin I...

We show that it is possible to describe the effective Pomeron intercept, determined from the HERA deep inelastic scattering data at small values of Bjorken x, by using next-to-leading order Balitsky-Fadin-Kuraev-Lipatov evolution together with collinear improvements. To obtain a good description over the whole range of Q(2), we use a non-Abelian physical renormalization scheme with the Brodsky-...

This report is a documentation of analytical techniques for characterizing the degree of nonlinearity implicit to active networks designed to achieve nominally linear performance input -tooutput performance characteristics. It addresses such metrics as total harmonic distortion, intermodulation levels, intercept points, and spurious free dynamic range. Aside from addressing the theoretic nature...

Linearity range (μg/ml) 2.5-15 1-3 2.5-15 1-3 Correlation coefficient (r) 0.999 0.997 0.999 0.997 0.999 0.997 0.998 0.999 Intercept 0.00195 0.00867 0.00195 0.00867 0.00245 0.00951 0.00329 0.00375 Slope 0.0607 0.0508 0.0607 0.0508 0.0605 0.0543 0.0572 0.0698 Accuracy (%) 98.8-102 98.2-98.8 97.5-99.5 100.2-100.9 Repeatability (RSD) 0.472 0.0058 0.467 0.0051 % Recovery 98.5±1.8 102±0.3 99.5±1.8 10...

To intercept a moving object, one needs to be in the right place at the right time. In order to do this, it is necessary to pick up and use perceptual information that specifies the time to arrival of an object at an interception point. In the present study, we examined the ability to intercept a laterally moving virtual sound object by controlling the displacement of a sliding handle and teste...

It is known that people can learn to deal with delays between their actions and the consequences of such actions. We wondered whether they do so by adjusting their anticipations about the sensory consequences of their actions or whether they simply learn to move in certain ways when performing specific tasks. To find out, we examined details of how people learn to intercept a moving target with...

We used an immersive virtual environment to examine how children and adults learn to intercept moving gaps and whether children and adults benefit from variability of practice. Children (10- and 12-year-olds) and adults attempted to bicycle between two moving vehicle-size blocks without stopping. In Experiment 1, block motions were timed such that if participants maintained a constant speed, th...

This paper describes a baseband analog (BBA) chain for wireless local area network (WLAN) applications. For the given specifications of the receiver BBA chain, the optimum allocation of the gain and filter rejection of each block in a BBA chain is achieved to maximize the SFDR. The fully integrated BBA chain is fabricated in 0.13 μm CMOS technology. An input-referred third-order intercept point...