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This paper describes a highly integrated, low power chip solution for ECG signal processing in wearable devices. The chip contains an instrumentation amplifier with programmable gain, a band-pass filter, a 12-bit SAR ADC, a novel QRS detector, 8 K on-chip SRAM, and relevant control circuitry and CPU interfaces. The analog front end circuits accurately senses and digitizes the raw ECG signal, which...
In this paper the performance of two-color middle wavelength infrared photovoltaic HgCdTe detector is simulated numerically based on two-dimensional model. Structure of n-p-p-p-n is designed in simultaneous mode. Spectral response is calculated, crosstalk between two bands and the function of barrier layer are analyzed in detail. Calculation results show that the radiation in MW1(shorter wavelength...
The transient photo-generated excess minority carrier lifetime in Hg1-xCdxTe n+p junction photodetector are measured using improved photo-induced open-circuit voltage decay (OCVD) technique. The lifetimes we extracted from the decay curve of the photovoltage are from tens to hundreds ns. A comparison of the relationship between composition of Cd and minority carrier lifetime show the lifetimes become...
The link between atherosclerosis and wall shear stress (WSS) has lead to considerable interest in the in vivo estimation of WSS. Both magnetic resonance imaging (MRI) and three-dimensional ultrasound (3DUS) are capable of providing the anatomical and flow data required for subject-specific computational fluid dynamics (CFD) simulations. This study compares, for the first time, predicted 3D flow patterns...
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