An important goal of the theory of genetic algorithms is to build models that predict how well genetic algorithms are expected to perform on a given fitness landscape (i.e., a given combination of representation, fitness function, and set of genetic operators). This paper describes the design of a software tool called a virtual genetic algorithm (VGA) that predicts the behavior of a genetic alg...

We present a design of broadband and wide dynamic range low noise amplifier/radio frequency variable gain amplifier (LNA/RF VGA) for digital video broadcasting – satellite (DVBS2) receiver tuner integrated circuit fabricated using the 0.18 μm complementary metal oxide semiconductor (CMOS) process. The MOS switching filter was used to get broadband characteristics of the LNA circuit and the MOS ...

Increasing emergence of staphylococci resistant to pleuromutilins, lincosamides, and streptogramin A (PLSA) and isolated from humans and pets is a growing public health concern worldwide. Currently, there was only one published study regarding one of the PLSA genes, vga(A) detected in staphylococci isolated from cat. In this study, eleven pleuromutilin-resistant staphylococci from pets and two ...

This paper introduces a simple variable gain amplifier (VGA) structure that shows an inherently dB-linear gain control property. Requiring no additional components for dB-linear control, the structure is compact and power efficient. The designed two-stage VGA shows a gain control range of 60dB with the gain error in the range of ±0.4 dB. The power consumption including the output buffer is 20.4...

Films of α-Ga2O3 grown by Halide Vapor Phase Epitaxy (HVPE) were irradiated with protons at energies 330, 400, and 460 keV fluences 6 × 1015 cm−2 7 MeV C4+ ions a fluence 1.3 1013 characterized suite measurements, including Photoinduced Transient Current Spectroscopy (PICTS), Thermally Stimulated (TSC), Microcathodoluminescence (MCL), Capacitance–frequency (C–f), photocapacitance Admittance (AS...

A video interface with end-point security is able to protect the confidentiality of electronic information up until the scan-line conversion process. Data stored in the video RAM remains encrypted, and this feature can be used to support design rights management. We describe the implementation of an end-pointsecure character-based VGA video interface. Video data confidentiality is maintained by...

Introduction Ultra-wideband (UWB) technology is a promising solution for low-complexity, low cost, low power and high-data rate wireless connectivity among devices in a personal area network. The main signal processing operations involved in a typical analog front end of a UWB receiver before demodulation are frequency translation to baseband, signal amplification and filtering to strengthen th...

Sir, The genes vga(A) and vga(C) and the most recently identified gene, vga(E), as well as the gene cfr, mediate transferable resistance to pleuromutilins in staphylococci. The vga genes encode ABC transporters, which also export streptogramin A antibiotics and lincosamides, and the cfr gene encodes a methyltransferase that confers additional resistance to phenicols, lincosamides, oxazolidinone...

Ammonothermal GaN samples with the concentration of free electrons 1018 and 1019 cm?3 were annealed in a wide range temperatures (Tann = 300–1400 °C) under atmospheric N2 pressure ultra-high conditions to avoid decomposition. Photoluminescence (PL) studies reveal YL2 band maximum at 2.3 eV before annealing two new PL bands after Tann > 600 °C: OL3 2.1 RL4 1.6–1.7 eV. The ammonothermal have high...