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In this paper, an energy-efficient phonocardiogram (PCG) signal processor is proposed for wearable long-term cardiac monitoring. To achieve high energy efficiency, the proposed PCG processor employs pipelined and memory-less adaptive architecture to implement wavelet-domain statistic based real-time de-noising, heart sound peak detection, false peak filtering, S1/S2 peak identification and cardiac...
This paper presents an intelligent on-line monitoring system based on the elastic wave for damage inspection on overhead transmission lines, the damage location on overhead transmission lines was successfully achieved by Gabor wavelet transform and power spectral density (PSD) technology. An overview of the system is presented, including a signal generation and acquisition system that is the elastic...
System call interposition is a powerful method for regulating and monitoring program behavior. A wide variety of security tools have been developed which use this technique. However, traditional system call interposition techniques are vulnerable to kernel attacks and have some limitations on effectiveness and transparency. In this paper, we propose a novel approach named VSyscall, which leverages...
Resource view is the user defined table to provide specific view on resource status in cloud computing environment. It provides a convenient way to retrieve resource data for applications at infrastructure, platform and service layers. But the description and maintenance of these diverse resource views are inconvenient and dramatically difficult due to massive, heterogeneous and dynamic characteristics...
This article presents the real-time sampling and counter control system controlled of Environmental On-line Monitoring System, as well as a comprehensive data parameters that are used to accessing water quality as COD, TOC, pH value, flow, which require data acquisition system to have a good real-time performance, powerful anti-interference performance, good stability performance, and good transplant...
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