INTRODUCTION Since 2002, with the creation of Centers of Memory Resources and Research (CMRR), considerable progress has been made in France regarding the administrative and institutional framework within which Alzheimer's disease (AD) is managed. In this study, we explore three approaches that can help optimize the inclusion of patients in clinical trials related to AD. They are as follows: to...

A large number of health and wellness applications wish to monitor electrocardiogram signal (ECG) in the least intrusive way possible. The use dry textile electrodes with high input impedance bio-amplifiers is a common technique. This paper presents novel ultra-high buffer obtain reduced capacitance enhance acquisition results for or non-contact capacitive ECG electrodes. Based on different boo...

A system-on-chip for the application of Electrocardiogram (ECG) monitoring and diagnostic is proposed in this paper, which includes reference circuit, instrumentation amplifier (IA), band-pass filter (BPF), amplifier stage and successive approximation register analog-to-digital converter (SAR-ADC). The Common-Mode Rejection Ratio (CMRR) of IA is greater than 132.87 dB, total gain of the AFE ach...

Abstract: In the paper, the folded-cascode low-noise operational amplifier (LNA) with constant-gm is proposed and analyzed. The channel-length split technique adopted to expand ratio of W/L of the differential pair transistor to improve the performance of LNA for the gain bandwidth product, noise and offset voltage. The channel-length split method is separated differential input transistor into...

This paper presents the analysin ,design and implementation of a high voltage ratio topology of DC-DC converter. The DC-DC converter has high voltage ratio with reduced input current, output voltage and output current ripple, and also reduces the voltage and current rating of power electronics components and compared with conventional boost converter. The voltage stress on the switches are  red...

assessment of agricultural drought risk at critical times before and during the growing season can provide sufficient time to policy makers and farmers to implement appropriate strategies to reduce the potential of risk. the purpose followed in the present study is to develop a statistical model to estimate the quality of agricultural drought risk for rainfed barley crop (prior to planting and ...

Nonideal factors which play a key role in performance and yield in high-precision applications of operational amplifiers are rigorously investigated. Of necessity, the combined effects of both deterministic and statistical parameters must be incorporated. The statistical characteristics of the common-mode rejection ratio and the offset of two-stage CMOS op-amps are investigated. The op-amp erro...

In this work, an ultra-low-voltage (ULV) technique to improve body-driven current mirrors is proposed. The proposed employed the performance of conventional differential-to-single-ended (D2S) converters which at these low voltages suffer from a common-mode rejection ratio (CMRR). addition, aims D2S also under large signal swing and with respect process, voltage temperature (PVT) variations, res...