This wireless sensor system has been designed and developed in-house using off-the-shelf components and open source software for remote and mobile applications [30]. The small form factor (3.75 selleck chemicals llc cm �� 5 cm �� 1 cm), high throughput, and low cost of this wireless sensor system make it particularly attractive for phonocardiography and other sensing applications. The results of sensor signal analysis using several signal characterization techniques suggest that the wireless sensor system can capture both fundamental heart sounds (S1 and S2), and is also capable of capturing abnormal heart sounds (S3 and S4) and heart murmurs without aliasing.The organization of the remainder of this paper is as follows: In Section 2, the overview of WSN platforms and phonocardiography sensors is presented.
The proposed wireless platform architecture and sensor integration are described in Section 3. Inhibitors,Modulators,Libraries In Section 4, strategies for improving the sensor’s data streaming rate are provided. The PCG sensor implementation details and validation studies are shown in Section 5. The summary of this paper is provided in Section 6.2.?Overview of WSN Platforms and Phonocardiography SensorsThe WSN platforms can be categorized into three main groups, namely, Advanced RISC Machine (ARM)-based platforms, microcontroller-based platforms and RF integrated platforms [31]. ARM-based platforms are designed mainly for applications that require considerable processing power. For instance, Intel Imote2 uses an Intel PXA271 processor which is an ARM-based processor.
This processor can provide a very high sampling data rate and is aimed at applications involving high-performance computations, where high bandwidth is required. However, compared to other platforms, this type of WSN platform also consumes high energy. In the case of applications where power consumption is a major consideration, microcontroller-based Inhibitors,Modulators,Libraries platforms are considered much more suitable. The MicaZ platform is specifically optimized for low-power, battery-operated Inhibitors,Modulators,Libraries networks. This platform uses an ATmega processor, which is a relatively slow processor but requires muc
Swine-origin influenza virus, a high-risk human influenza A virus (H1N1), is a serious health threat and potential leading cause of death all around the World [1]. The World Health Organization (WHO) has reported that more than 16,000 cumulative deaths were reported from 213 countries due to H1N1 Inhibitors,Modulators,Libraries in February 2010 [2].
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