The system analysis of specific absorption rate(SAR)in human body exposed to a base station antenna by using finite difference time domain techniques was presented in this research works.The objectives of ...The system analysis of specific absorption rate(SAR)in human body exposed to a base station antenna by using finite difference time domain techniques was presented in this research works.The objectives of this work are to evaluate the knowledge and awareness about SAR among human body and mobile base station.The paper investigates the electromagnetic wave absorption inside a human body.The human body has been identified using dataset based on 2D object considering different electrical parameters.The SAR convinced inside the human body model exposed to a radiating base station antenna(BSA)has been considered for multiple numbers of carrier frequencies and input power of 20 W/carrier at GSM 900 band.The distance(R)of human body from BSA is varied in the range of 0.1 m to 5.0 m.For the number of carrier frequency equal to one and R=0.1 m,the concentrated value of whole-body average SAR obtained by FDTD technique is found to be 0.68 W/kg which decreases either with increase of R or decrease of number of carrier frequencies.Safety distance for general public is found to be 1.5 m for number of carrier frequencies equal to one.The performance accuracy of this analysis meets the high level condition by comparing with the relevant system development in recent time.展开更多
In order to robustly detect and quantify gene expression from small amounts of RNA, amplification of the gene transcript is necessary. Real Time PCR is useful for detection and quantification of genetic constitution o...In order to robustly detect and quantify gene expression from small amounts of RNA, amplification of the gene transcript is necessary. Real Time PCR is useful for detection and quantification of genetic constitution of pathogens. This technique amplifies a tiny DNA target million or billion times in such a way that it can be easily studied by scientists. Availability of highly sensitive and specific assay for the detection of SARS-Cov-2 and easy accessibility of such was necessary for early diagnosis and effective management of COVID-19 infection. The aim of this study was to evaluate the performance characteristic of SCODA. Validation of SCODA was performed using synthesized standards and clinical samples previously tested using a commercially approved COVID-19 RT-qPCR detection kit (LifeRiver). The assay showed a linearity of 98.2% on the ORF1ab target and 99.8% on the N-gene target. The sensitivity and specificity were both 100%. Analysis for the LoD<sub>95</sub> produced 74.04 (CI: 25 - 1000) cp/μl on ORF1ab gene and 1.119 (CI: 1 - 1) cp/μl on N-gene target with a precision of CV ≤ 3%. SCODA showed high comparable performance in comparison with LifeRiver and other commercial COVID-19 RT-qPCR test kits.展开更多
基金This work is collaborative research with the Department of Electronics&Communication Engineering,Acharya Institute of Technology,Bengaluru,India.And also this work is a collaborative research between Yangon Technological University and University of Oulu in Finland based on the enhancement of Telecommunication Engineering Education in YTU.This work is fully supported by the government research funds of 2020-2021 academic year which is the grant no of GB/D(4)2020/4.
文摘The system analysis of specific absorption rate(SAR)in human body exposed to a base station antenna by using finite difference time domain techniques was presented in this research works.The objectives of this work are to evaluate the knowledge and awareness about SAR among human body and mobile base station.The paper investigates the electromagnetic wave absorption inside a human body.The human body has been identified using dataset based on 2D object considering different electrical parameters.The SAR convinced inside the human body model exposed to a radiating base station antenna(BSA)has been considered for multiple numbers of carrier frequencies and input power of 20 W/carrier at GSM 900 band.The distance(R)of human body from BSA is varied in the range of 0.1 m to 5.0 m.For the number of carrier frequency equal to one and R=0.1 m,the concentrated value of whole-body average SAR obtained by FDTD technique is found to be 0.68 W/kg which decreases either with increase of R or decrease of number of carrier frequencies.Safety distance for general public is found to be 1.5 m for number of carrier frequencies equal to one.The performance accuracy of this analysis meets the high level condition by comparing with the relevant system development in recent time.
文摘In order to robustly detect and quantify gene expression from small amounts of RNA, amplification of the gene transcript is necessary. Real Time PCR is useful for detection and quantification of genetic constitution of pathogens. This technique amplifies a tiny DNA target million or billion times in such a way that it can be easily studied by scientists. Availability of highly sensitive and specific assay for the detection of SARS-Cov-2 and easy accessibility of such was necessary for early diagnosis and effective management of COVID-19 infection. The aim of this study was to evaluate the performance characteristic of SCODA. Validation of SCODA was performed using synthesized standards and clinical samples previously tested using a commercially approved COVID-19 RT-qPCR detection kit (LifeRiver). The assay showed a linearity of 98.2% on the ORF1ab target and 99.8% on the N-gene target. The sensitivity and specificity were both 100%. Analysis for the LoD<sub>95</sub> produced 74.04 (CI: 25 - 1000) cp/μl on ORF1ab gene and 1.119 (CI: 1 - 1) cp/μl on N-gene target with a precision of CV ≤ 3%. SCODA showed high comparable performance in comparison with LifeRiver and other commercial COVID-19 RT-qPCR test kits.
