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Hyderabad, India

The CVR College of Engineering was established in 2001. It is approved by the All India Council for Technical Education and accredited by the National Board of Accreditation, India.CVR College of Engineering is affiliated with the Jawaharlal Nehru Technological University, Hyderabad. The college is located in Mangalpalli, Ibrahimpatan, Ranga Reddy, 20 km from the centre of Hyderabad, India. The college is supported by the Cherabuddi Educational Society.It was ranked 23rd among the engineering colleges of Telangana in a survey conducted by the Sakshi newspaper. CVR has become the youngest college to get the JNTU Hyderabad "Autonomous" status for 3 years. No other college in the JNTUH system got the autonomous status for three years at the age of ten years. Wikipedia.

Rao N.V.,CVR College of Engineering | Kumari V.M.,Defense Metallurgical Research Laboratory
Information Security Journal | Year: 2011

Medical image watermarking has been widely recognized as a relevant technique for enhancing data security, image fidelity, authenticity and content verification in the current e-health environment where medical images are stored, retrieved and transmitted over networks. Medical image watermarking preserves image quality that is mandatory for medical diagnosis and treatment. The present paper highlights essential needs of medical image watermarking with a review of developments since 2000 and simulated experiments to demonstrate the significance of watermarking in medical information management. © Taylor & Francis Group, LLC.

Seetha Rama Raju V.,CVR College of Engineering | Seetha Rama Raju V.,Osmania University
Journal of Magnetism and Magnetic Materials | Year: 2015

PbO and Ta2O5 added MgCuZn ferrites are prepared by the Microwave-Hydrothermal (M-H) processing. The nanocrystalline ferrites are sintered to a temperature of 900 °C/4 h. SEM pictures reveal that, the addition of PbO causes a small amount of grain growth, whereas the addition of Ta2O5 causes a fine-grained microstructure. The complex permeability spectra (μ∗=μ′-iμ″) of the prepared samples were measured in the frequency range from 1 MHz to 1.8 GHz, the μâ∗spectra are analyzed into two magnetization processes with focus on the particle size of ferrite samples. In addition to the spin rotation relaxation in 130-200 MHz, it is initially identified the contribution from reversible domain wall bowing rising at 6-40 MHz. The magnetic state of the ferrite is also influenced by the addition of PbO and Ta2O5. The spin rotation mechanism of the present ferrites is enhanced by the preparation of nanocrystalline samples. © 2015 Elsevier B.V. All rights reserved.

Sunil Kumar C.,CVR College of Engineering | Amarnath J.,Jawaharlal Nehru University | Subrahmanyam P.S.,Vignana Bharathi Institute of Telchnology
International Review on Modelling and Simulations | Year: 2011

In this paper, important factors that may affect generating companies' profit margins through wholesale electricity trading are discussed. These factors include generators' efficiencies and capabilities, types of generators owned, fuel costs, transmission losses and settling price variation. It demonstrates how proper analysis of these factors using the solutions of Optimal Power Flow (OPF), can allow companies to maximize overall revenue. And through this OPF analysis, companies will be able to determine, for example, which generators are most economical to run, best locations for generators to be situated at, and also the scheduling of generators as demand changes throughout the day. It illustrates how solutions of OPF can be used to maximize companies' revenue under different scenarios. And is also extended to computation of Available Transfer Capability (ATC) is very important to the transmission system security and market forecasting. From these results it is observed that how crucial it is for companies to plan their daily operations and is certainly useful in an online environment of deregulated power system. In this paper above tasks are demonstrated on IEEE 26-bus system and IEEE 118-bus system and results have been presented and analyzed. © 2011 Praise Worthy Prize S.r.l. - All rights reserved.

Rao P.V.B.,CVR College of Engineering | Sankaram T.B.,Osmania University
Journal of Electroceramics | Year: 2010

Lead free Potassium bismuth Titanate K0.5Bi 0.5TiO3 (KBT) was prepared by high temperature solid state reaction method in a closed crucible with excess KBT powder around the samples. A room temperature study of XRD confirms, single phase formation with tetragonal structure .Grain and grain boundary conduction is observed from complex impedance spectrum at high temperatures (425°C) by the appearance of two semicircular arcs. The Cole-Cole plots of impedance spectrum consisted of a Circular arc followed by a semicircular spur indicate that the dielectric phenomenon of KBT is due to conductive grain boundaries. The temperature variation of grain resistance and grain boundary resistance is observed with the activation energies. The presence of non-Debye type multiple relaxations has been confirmed by complex modulus analysis. The dielectric data obtained from impedance measurements, indicates broad dielectric peaks around 380°C. The ferroelectric nature confirmed from hysteresis plot. The DC Conductivity results indicate activation energy 0.54 eV below 400°C and 0.85 eV above 400°C. The AC conductivity values and electric modulus values are computed from the impedance data. The activation energies of AC conductivity have observed to decrease with decrease in frequencies. © 2009 Springer Science+Business Media, LLC.

Ramisetti S.,CVR College of Engineering | Wankar R.,University of Hyderabad
Proceedings - 2011 2nd International Conference on Intelligent Systems, Modelling and Simulation, ISMS 2011 | Year: 2011

This paper discusses the Design and Implementation of Hierarchical Thread Pool Executor (HTPE) using the non blocking queues. This work enhances the performances of the Distributed Shared Memory (DSM) Programming. Few Java based DSMs make use of the concurrent utilities of Java that support the thread pool executor with blocking queues (i.e. Jackal). The study of the new proposed algorithm is done in a simulated environment which demonstrates that if the non-blocking queues are used, their performance improve significantly. The Hierarchical Thread Pool Executor using the non blocking queue has been simulated on the cluster environment using MinHeap tree data structure. © 2011 IEEE.

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