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Jain P.K.,Center for Information and Communication Technology | Chourasia V.S.,Manoharbhai Patel Institute of Engineering and Technology
Journal of Medical Engineering and Technology | Year: 2016

This paper presents a system based on Seismocardiography (SCG) to monitor the heart sound signal for the long-term. It uses an accelerometer, which is of small size and low weight and, thus, convenient to wear. Such a system should also be robust to various noises which occur in real life scenarios. Therefore, a detailed analysis is provided of the proposed system and its performance is compared to the performance of the Phoncardiography (PCG) system. For this purpose, both signals of five subjects were simultaneously recorded in clinical and different real life noisy scenarios. For the quantitative analysis, the detection rate of fundamental heart sound components, S1 and S2, is obtained. Furthermore, a quality index based on the energy of fundamental components is also proposed and obtained for the same. Results show that both the techniques are able to acquire the S1 and S2, in clinical set-up. However, in real life scenarios, we observed many favourable features in the proposed system as compared to PCG, for its use for long-term monitoring. © 2016 Taylor & Francis Source

Chourasia V.S.,Manoharbhai Patel Institute of Engineering and Technology | Tiwari A.K.,Rajasthan MBM College Campus
The Scientific World Journal | Year: 2013

Fetal phonocardiography (fPCG) based antenatal care system is economical and has a potential to use for long-term monitoring due to noninvasive nature of the system. The main limitation of this technique is that noise gets superimposed on the useful signal during its acquisition and transmission. Conventional filtering may result into loss of valuable diagnostic information from these signals. This calls for a robust, versatile, and adaptable denoising method applicable in different operative circumstances. In this work, a novel algorithm based on wavelet transform has been developed for denoising of fPCG signals. Successful implementation of wavelet theory in denoising is heavily dependent on selection of suitable wavelet basis function. This work introduces a new mother wavelet basis function for denoising of fPCG signals. The performance of newly developed wavelet is found to be better when compared with the existing wavelets. For this purpose, a two-channel filter bank, based on characteristics of fPCG signal, is designed. The resultant denoised fPCG signals retain the important diagnostic information contained in the original fPCG signal. © 2013 Vijay S. Chourasia and Anil Kumar Tiwari. Source

Mittra A.K.,Manoharbhai Patel Institute of Engineering and Technology
International Journal of Biomedical Engineering and Technology | Year: 2010

Foetal heart sound can be extracted from maternal abdominal surface; the technique is also known as foetal Phonocardiography (fPCG). This work investigates the analysis of foetal heart sound in time domain using a novel signal processing algorithm. An innovative approach is presented for the foetal heart sound acquisition, processing, and time domain representation, which can be used in a portable foetal home monitoring applications. The system has been tested for various real and simulated foetal heart sound signals. The outcome of the process is segmented foetal phonocardiogram along with Foetal Heart Rate (FHR) parameters viz., average FHR, standard deviation of FHR and finally the FHR trace. Copyright © 2010 Inderscience Enterprises Ltd. Source

Pandey D.,Manoharbhai Patel Institute of Engineering and Technology
International Journal of Renewable Energy Research | Year: 2013

The purpose of this paper is commercial evaluation of West coast geothermal resources of India. The western parts of Maharashtra State are also known as the economic back-bone of India, where in about 60% of Agro-Industrial products is being manufactured from this part. Considering this fact, it is necessary to evaluate the west coast geothermal resources for non-electric uses. To save the expense of drilling investigation, indirect methods of evaluation of reservoir are chosen. The petrological, mineralogical, geochemical and geophysical survey reports of the areas are thoroughly studied. On the basis of pre-existing data, the evaluation of the area reveals low temperature. Geochemical data reveal that, there is a marginal reduction in alkalis at 100°C, where as they registered enrichment in the resultant solution of experiments at 150°C. The chemical analysis of the basaltic gains after reaction at 175°C and 200°C indicates an increase in tempreture. On the basis of above data, the area was found to be suitable for commercial utilization of geothermal energy for non-electric uses in agricultural and industrial sectors. Source

Rahangdale P.K.,Bhawabhuti College | Dhote P.R.,Manoharbhai Patel Institute of Engineering and Technology | Dongapure A.C.,Shankarlal Agrawal College
Der Pharma Chemica | Year: 2016

Initially, 4-hydroxyacetophenone-biuret-trioxane (4-HABT) terpolymer was successfully synthesized, purified and characterized in the laboratory. A nanophotocatalyst, AgI-ZnO, was prepared using precipitation followed by hydrolysis method. Then, it was anchored on 4-HABT terpolymer using molecular adsorption-deposition method. The AgI-ZnO nanoparticles, deposited on the 4-HABT terpolymeric molecules, formed a coating of about 90 nm in thickness. This newly modified functional nanophotocatalytic material was characterized by means of infrared spectroscopy, X-ray diffraction and scanning electron microscopy studies. This new 4-HABT-AgI-ZnO nanophotocatalyst exhibited an excellent photocatalytic activity in the photodegradation of quite concentrated aqueous solutions of dyes. The dye molecules in bulk solution was supposed to be condensed better around AgI-ZnO particles because of the adsorption phenomenon on 4-HABT terpolymer molecules, and, therefore, the photocatalytic process was enhanced due to the combined effect of adsorption by 4-HABT terpolymer macromolecules and photocatalytic activity on AgI-ZnO. It was observed that the decolorization of contaminated water occurred within a short-time interval. Thus, it can be concluded that the functional nanophotocatalytic material, reported in this research paper, can be successfully used for water and wastewater treatments. Source

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