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Binary pollution of both heavy metals and antibiotics has received increasing attentions for their joint effects of eco-toxicity and health hazards. To reveal the effects of mixtures of different pollutants on bacterial antioxidant response system, Pseudomonas fluorescens ZY2, a new strain isolated from swine wastewater, was chosen to determinate growth (bacterial density OD600), reactive oxygen species...
This paper presents a low power and high gain limiting amplifier for Gbps wireless communication system in 0.18μm CMOS technology. It incorporates negative active inductor, negative resistance and negative capacitance to boost gain and bandwidth. Drawing 2.8mA from 1.8V supply, the limiting amplifier achieves 1.25Gbps data rate and 52dB differential gain. The chip is fully integrated, which occupies...
Differential power analysis attacks must be considered in low-power adiabatic logic crypto-system designs. This paper presents analyses, simulations and comparisons about the DPA resistance of several transistor-based adiabatic logic styles in a uniform testbench using a 0.18 μm CMOS technology. The simulation experiment results indicate that all the adiabatic logic styles have better DPA resistances...
We report a novel PIN diode SiGe HBT variable gain amplifier (VGA) suited for the standard of WCDMA. The PIN diode which is employed in the feedback loop of the VGA play as a variable resistor to realize the gain control function. By adjusting the bias of the diode, the gain of the VGA can be changed. An inductor is utilized in the feedback loop to reduce the noise figure of the circuit. After matching...
A 4 GS/s 2-bit non-time-interleaved flash ADC is designed for an IR-UWB (Impulse Radio Ultra Wide Band) receiver. In this flash ADC, implementing differential low-swing operation in analog part and CML (current mode logic) in digital part result in high-speed and low power consumption. Furthermore, because of the low-bit-sampling characteristic of the IR-UWB system, non-time-interleaved structure...
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