In this paper memristor based RC phase shift oscillator and Colpitts oscillator have been proposed. In the proposed oscillators resistors and inductors present in the conventional circuits have been replaced by memris...
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ISBN:
(纸本)9781728100173
In this paper memristor based RC phase shift oscillator and Colpitts oscillator have been proposed. In the proposed oscillators resistors and inductors present in the conventional circuits have been replaced by memristors. Memristor characteristics like nano scale dimension, low power consumption and electronic programmability help in achieving high performance oscillators. LTspice has been used to simulate the conventional and proposed circuits. These simulaton results show that RC phase shift and Colpitts oscillators can be tuned in the frequency range of 3 to5 kHz and 52 to 58 kHz respectively, if controlling voltage is changed from 0.3 to 1.8 V.
This systematic review examines the health risk assessment of fluoride and nitrate concentrations in drinking water sources across India. 1250 studies on fluoride and nitrate in Indian waters were examined between 201...
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This systematic review examines the health risk assessment of fluoride and nitrate concentrations in drinking water sources across India. 1250 studies on fluoride and nitrate in Indian waters were examined between 2015 and 2024; following thorough evaluation and exclusion, 55 high-quality, pertinent papers were chosen. The results were shown using a geographic information system (GIS) and corresponding zoning maps. Alarmingly, more than 40 % and 50 % of samples investigated exceeded the allowable level set for fluoride and nitrate concentration in potable water 1.5 mg/L and 50 mg/L, posing potential Health risks. The results indicated that the HQ of fluoride and nitrate across all targeted groups (children, teenagers, and adults) exceeded 1. The HQ values were 3.206, 2.466, 1.9764 for fluoride and 6.487, 4.99, 3.998 for nitrate. Significantly, the order of vulnerability was children > teenagers > adults, with children being the most vulnerable group to fluoride and nitrate consumptions in the investigated locations. This research study shows that a detailed investigation of the hydro geochemistry of fluoride and nitrate can predict groundwater quality zones of the state using machine-learning techniques, viz., artificial neural network (ANN) and extreme gradient boosting (XGBoost) regression. The ANN and XGBoost models, with their high R 2 values of 0.9991 and 0.9992 in training, and 0.9868 and 0.8943 in testing, inspire confidence in their predictive power. The average RMSE values during training were 0.0441 and 0.0067 for fluoride. Similarly, the R 2 values of 0.9998 and 0.9985 in training, and 0.9956 and 0.9448 in testing, along with the average RMSE values of 0.0441 and 0.0067 for nitrate, further reinforce the models' predictive capabilities. Therefore, fluoride and nitrate amounts must be measured in diverse water sources to determine the optimal removal technique and limit human health risks.
Lignocellulosic ethanol is one of the utmost promising and happening technological options available to moderate greenhouse gas emissions from transportation sector. Present study used ultrasound-assisted lime pretrea...
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Intramuscular fat is one of the crucial quality indices in meat grading. The traditional intramuscular fat detection methods like chemical, visual, nuclear magnetic resonance etc. are tedious, costly and time-consumin...
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Intramuscular fat is one of the crucial quality indices in meat grading. The traditional intramuscular fat detection methods like chemical, visual, nuclear magnetic resonance etc. are tedious, costly and time-consuming whereas edge detection techniques are fast and non-destructive testing methods. In this paper hyper smoothing function-based edge detection technique is proposed for intramuscular fat detection. The proposed method utilizes an improved counting scheme and the relationship between surrounding pixels and centric pixel. The scheme calculates fat percentage, fat fleck size distribution and homogeneity. The quantitative analysis of results shows that the fat percentage measured by HLBP is more accurate as compared to black and white method and energy and skewness based fat detection method.
In wireless sensor network, for some applications users are attracted in real time data. This can be done, if users directly interact with sensor node. For security reasons, user needs to get authorized to base statio...
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Lung cancer is the one of the most deadly diseases because of its constant change in biological behavior with respect to different infected patients. So, identification of genes responsible for lung cancer is a major ...
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Data collected in Wireless Sensor Network is transmitted to the sink by the sensor nodes. Sink processes the data for further action. These networks are energy constrained and hence communication to sink should be ene...
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People are increasingly using social media to share both their personal and professional interests. Though most social networks cater to no specific age group, in recent years, platforms such as Twitter have taken cen...
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ISBN:
(纸本)9781728102122
People are increasingly using social media to share both their personal and professional interests. Though most social networks cater to no specific age group, in recent years, platforms such as Twitter have taken center stage for students to discuss and discover similar passions and areas of interest. In this paper, we first explore students' Twitter activity to determine the core interests of students and then propose a recommender system that assigns group leaders to projects. We use a clustering algorithm to group the students with similar interests in the projects.
In the present article, we deal with the so-called overconvergence phenomenon in C of a slightly modified Post-Widder operator of real variable, that is with the extension of its approximation properties from the real...
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In the present article, we deal with the so-called overconvergence phenomenon in C of a slightly modified Post-Widder operator of real variable, that is with the extension of its approximation properties from the real axis in the complex *** this sense, error estimates in approximation and a quantitative Voronovskaya-type asymptotic formula are established.
High gain transimpedance amplifier (TIA) with low power dissipation is presented in which Self cascode structure (also known as split length transistor structure) is used to achieve high output impedance which leads t...
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