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Bhima K.,BVRIT | Jagan A.,BVRIT
2016 International Conference on Signal and Information Processing, IConSIP 2016 | Year: 2016

This work focuses on analyses of accuracy and detection of anomalies in Brain MR Images. The similar research outcomes exhibit the progress in brain MR image segmentation through diverse methods and techniques. However, the accurate results have not been projected Therefore, this work focuses on enhancement of accuracy for detection of anomalies in Brain MR Images to improve the accuracy of anomalies detection by merging the results of most conventional Watershed Method and EMGM Method. The application of this method is equipped with the bilateral filter to improve the brain MR image edges for better segmentation; the proposed method results are compared with Watershed Method and EMGM Method with the help of BRATS brain image dataset and the results are found superior than conventional Watershed Method and EMGM Method. © 2016 IEEE.

Pasha S.,BVRIT | Tulasi Ram Das G.,Jawaharlal Nehru Technological University Kakinada
International Journal of Applied Engineering Research | Year: 2015

This paper proposes a comparison analysis of different real and reactive power coordination controller for a unified power flow controller (UPFC). The basic control for the UPFC is such that the series converter of the UPFC controls the transmission line real/reactive power flow and the shunt converter of the UPFC controls the UPFC bus voltage/shunt reactive power and the DC link capacitor voltage. In steady state, the real power demand of the series converter is supplied by the shunt converter of the UPFC. To avoid instability/loss of DC link capacitor voltage during transient conditions, a real power coordination ANN, Fuzzy & Neuro Fuzzy controller has been designed. The need for reactive power coordination controller for UPFC arises from the fact that excessive bus voltage (the bus to which the shunt converter is connected) excursions occur during reactive power transfers. A new reactive power coordination controller has been designed to limit excessive voltage excursions during reactive power transfers. MATLAB-SIMULINK simulation results have been presented to show the improvement in the performance of the UPFC control with the real power and reactive power coordination Neuro Fuzzy controller. © Research India Publications.

Reddy T.V.,Bvrit | Rao S.S.,Mrcet | Sridevi P.V.,Andhra University
International Conference on Electrical, Electronics, Signals, Communication and Optimization, EESCO 2015 | Year: 2015

PCM Codec is a versatile device containing of both transmitter and receiver. Transmitter section consists of low pass filters, sampler, quantizer, encoder and the receiver consists of inverse quantizer, decoder, and low pass filters. 4th order filters are used for avoiding the noise in the signal. In this paper, 4 channels are used, only one channel is working at a time, during this period remaining 3 channels are in the off mode for avoiding the dynamic power dissipation. For implementing PCM Codec with filters we used Active HDL 5.1 for simulation and XILINX 8.1 for synthesis and the design is targeted to FPGA board. Finally we attained 85% of utilization on FPGA area. Each channel takes 16 bit input at the transmitter side, but at the receiver side only 14 bits are received accurately, remaining two bits received wrongly. So the accuracy is 87.5%. This problem is caused by the process of sampling and we solved it by decreasing the step size (Δ). © 2015 IEEE.

Deepthi J.,BVRIT | Saxena S.N.,GRIET
International Conference and Workshop on Emerging Trends in Technology 2011, ICWET 2011 - Conference Proceedings | Year: 2011

Mutlilevel Inverter is a power electronic circuit used to generate voltage of multiple levels. As the number of levels increases harmonic content can be decreased. In this paper a three level diode clamped inverter is used and variation of its output total harmonic distortion with respect to modulation index is observed. Here Sinusoidal PWM technique is used to generate the pulse inputs to gate of IGBTs. In this method a fundamental frequency sine wave is compared with high frequency carrier triangular wave. Copyright © 2011 ACM.

Dasaradha Ramaiah K.,BVRIT | Venugopal T.,JNTUH College of Engineering
ARPN Journal of Engineering and Applied Sciences | Year: 2015

Digital image compression technology is of special interest for the fast transmission and real-time processing of digital image. However image compression is a trend of research grown for a long time and there are multiple sophisticated approaches which significantly improve the compression rate and down grade computation time, a basic comparison with the aspect of storage on cloud environment is required. This work analyzes about the background of image compression, including when image compression is needed, categories of techniques and their properties. However compression uses many algorithms that store an exact representation or an approximation of the original image in a smaller number of bytes that can be expanded back to its uncompressed form with a corresponding decompression algorithm. This work also analyzes the performance of multiple image formats for multiple compression algorithms over multiple cloud storage [15]. © 2006-2015 Asian Research Publishing Network (ARPN).

Subhash B.,SR Engineering College | Rajagopal V.,BVRIT
2014 Power and Energy Systems Conference: Towards Sustainable Energy, PESTSE 2014 | Year: 2014

In Smart Grid, the smart meters are versatile role with intelligent capabilities in order to meet the consumer's demands and their each objective. Smart meter can measure and communicate detailed real time electricity usage, facilitate remote real time monitoring and control power consumptions and consumers are provided with real time pricing and analyzed usage information, which is a technical data to be transmitted to the grid, who are utility providers. More detailed feedback on each appliance to the user. In this connection Demand-side management (DSM) programs implemented by utility companies to control the energy consumption in residences appliances which are interfacing the digital meter with many DSM technical properties and Home energy management system is also implemented for the same cause. A simulation framework that can model a house equipped with various home appliances and the simulator can predict the power dissipation profiles of individual appliances as well as the cumulative energy consumption of the house in a realistic manner, in this process the harmonic pollutions in the electrical networks became one of the major factors affecting the power quality of the network which are detected and for which one of the techniques is two stage solutions for the harmonic analysis by Radial basis function in the neural network. Future smart grids will likely to be more tightly integrated with the cyber infrastructure for sensing, control, scheduling, dispatch, billing and cyber attacks can be detected by using smart meters and also ordering the power demand through online. © 2014 IEEE.

Rao V.S.,Anurag Group of Institutions | Babu L.A.,Anurag Group of Institutions | Raju R.S.,B.V.R.I.T
Journal of Applied Fluid Mechanics | Year: 2013

The objectives of the present study are to investigate the radiation effects on unsteady heat and mass transfer flow of a chemically reacting fluid past a semi-infinite vertical plate with viscous dissipation. The method of solution is applied using Finite element technique. Numerical results for the velocity, the temperature and the concentration are shown graphically for various flow parameters. The expressions for the skin-frication, Nusselt number and Sherwood number are obtained. The result shows that increased cooling (Gr>0) of the plate and the Eckert number leads to a rise in the velocity. Also, an increase in the Eckert number leads to an increase in the temperature, whereas increase in radiation lead to a decrease in the temperature distribution when the plate is being cooled.

Mahender D.,B.V.R.I.T | Rao P.S.,B.V.R.I.T
Journal of Physics: Conference Series | Year: 2016

This study examines the influence of unsteady magneto hydrodynamic free convection and mass transfer flow past a vertical porous plate in presence of viscous dissipation and heat source. The governing non linear partial differential equations are transformed into a system of coupled non linear partial differential equations and solved using a Finite element technique. The effects of various physical parameters on the dimensionless velocity, temperature and concentration profiles are depicted graphically and analyzed in detail.

Gupta S.,BVRIT | Bhattacharya S.,BVRIT
Lecture Notes in Electrical Engineering | Year: 2013

ECG signals play an important role in the primary diagnosis, prognosis and survival analysis of heart diseases. In this paper, a new approach based on the threshold value of ECG signal determination is proposed using Wavelet Transform coefficients. The electrocardiogram signal contains an important amount of information that can be exploited in different manners [1]. Different ECG signals are used to verify the proposed method. A wavelet-based electrocardiogram (ECG) data compression algorithm for dynamic Arrythmia database is presented. The ECG signal is first processed then discrete wavelet is sent to the preprocessed signal. Compression is achieved by variable length based on run length encoding to compress significance and direct binary representation for representing significant coefficients. The proposed algorithm is compared with direct wavelet based compression algorithm represents superior performance. © 2013 Springer Science+Business Media.

Abhilash R.,BVRIT | Dubey S.,BVRIT | Chinnaaiah M.C.,BVRIT
International Conference on Electrical, Electronics, Signals, Communication and Optimization, EESCO 2015 | Year: 2015

Signed Baugh-Wooley multiplier is famous for multiplication of signed multiplicands in twos complement data representation. In this Paper, a novel 4:2 and 5:2 compressors architecture is proposed. Wallace tree architecture is chosen to reduce the number of stages and by using the proposed compressors additional reduction of latency and area is achieved. The performance of these compressors is evaluated by including those in signed Baugh-Wooley multipliers with Wallace tree. The result shows 6.77 percentage reduction in cell area and 7.04 percentage faster than existing Signed Baugh-Wooley multiplier when 5:2 compressor architecture is used. © 2015 IEEE.

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