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Chandra Sekhar O.,Vignans Lara Institute of Technology and Science | Chandra Sekhar K.,Rashtreeya Vidyalaya College of Engineering
Journal of Theoretical and Applied Information Technology | Year: 2012

This paper shows the application of fuzzy PID control technique to reduce torque ripple in an induction motor employing Direct Torque Control (DTC). The performance of the proposed drive system is evaluated through digital simulation using MATLAB-SIMULINK package. The simulation results clearly depict the superiority of devised method over the SVM - DTC. © 2005 - 2012 JATIT & LLS. All rights reserved.


Srinivasababu N.,Vignans Lara Institute of Technology and Science | Kumar K.P.,Vignans Lara Institute of Technology and Science
Materials Today: Proceedings | Year: 2015

Increase in environmental awareness towards the sustainable environment invites the development of new materials which are partially/fully green. In this concern an attempt is made to extract the hybrid fibre from sacred grass which is botanically called Imperata Cylindrica. The fibre is reinforced into polyester matrix to make the composites for tensile test at different weight fractions as per ASTM procedures. At maximum fibre volume fraction the composites have shown a tensile strength, modulus of 26.59, 674.95. MPa respectively. Then the tensile properties of the composites are further compared with the composites reinforced with sacred grass leaf and petiole fibre. © 2015 Elsevier Ltd.


Murthy J.V.R.,National Institute of Technology Warangal | Kumar M.P.,Vignans Lara Institute of Technology and Science
Journal of Physics: Conference Series | Year: 2016

Stokes viscous flow past a partially contaminated fluid sphere with no slip condition is considered. No mass transfer for the entire sphere, no slip condition on contaminated part, shear stress continuity on clear part and regularity condition at far away from the body are considered for boundary conditions for evaluation of stream function.


Srinivasababu N.,Vignans Lara Institute of Technology and Science
IOP Conference Series: Materials Science and Engineering | Year: 2015

Increasing attention towards "sustainable environment" invited the development of new materials to satisfy the needs of the public with less/no damage on surroundings. In this regard a specific attempt is made by the author to do review and understand the performance of the variable vegetable fibres of okra which is botanically called 'Abelmoschus Esculentus' and their composites under various conditions of load. Further the results exist in the literature are also reviewed for the purpose of comparison. © Published under licence by IOP Publishing Ltd.


Kothuri S.,Vignans Lara Institute of Technology and Science | Mattupalli K.T.,Vignans Lara Institute of Technology and Science
Proceedings of 2014 International Conference on Contemporary Computing and Informatics, IC3I 2014 | Year: 2015

In this paper a new approach for pattern mining is done through the image set consists of layers that might be irregular or regular one. Those layers will contain the hulls to be identified by using the onion routing approach. As the onion consists of several layers, if those layers are separated they can be easily mined and later the counting algorithm will be easily applied to find number of layers. This can be helpful in knowing how many floors, rooms etc in a building. In a way it can be applied to a number of applications like traffic, military, etc. The estimation results are easily obtained while going through identifying the sub-regional objects by using the SASK algorithm. The hard clustering and density based clustering process of obtained image rough set is used to recognize the differentiated internal objects, if any. Layered hulls are those having the structured layers inside. These are useful in the Military Services and Traffic to identify the number of vehicles or persons. In this Proposed Paper SASK algorithm is designed which is helpful for identifying the regions and By creating clusters and it will be useful to differentiate the layers and can help to identify them easily. © 2014 IEEE.


Kothuri S.,Vignans Lara Institute Of Technology And Science | Teja M.K.,Vignans Lara Institute Of Technology And Science
Advances in Intelligent Systems and Computing | Year: 2015

In this paper we proposed a novel algorithm for recognizing hulls in a hand written digits. Those hull regions are detected in order to find out in a digit of user drawn. To achieve that it is necessary to follow the three steps. Those are Pre-processing, Boundary Extraction and at last apply the Hull Detection system in a way to attain the most relevant results. The detection of Hull Regions is mainly aim to intend the increase of machine learning capability in detection of characters or digits. This provides an artificial intelligence to the system in away in can identify the digits or characters easily. This can also be extended in order to get to detect the hull regions and their intensities in Black Holes in Space Exploration. © Springer International Publishing Switzerland 2015.


Kanagala H.K.,Vignans Lara Institute of Technology and Science | Jaya Rama Krishnaiah V.V.,ASN Womens Engineering College
2016 International Conference on Computer Communication and Informatics, ICCCI 2016 | Year: 2016

In view of today's information available, recent progress in data mining research has lead to the development of various efficient methods for mining interesting patterns in large databases. It plays a vital role in knowledge discovery process by analyzing the huge data from various sources and summarizing it into useful information. It is helpful for analyzing the volumes of data in different domains like Marketing, Health, Science and Technology. Cluster analysis is widely used approach to notice the trends in the volumes of data. In this paper, we evaluated the performance of the different clustering approaches like as K-Means, DBSCAN, and OPTICS in terms of accuracy, outlier's formation, and cluster size prediction. © 2016 IEEE.


Seshagiri Rao N.,Vignans Lara Institute of Technology and Science | Acharyulu K.V.L.N.,University of the Humanities | Kalyani K.,Bapatla Engineering College
ARPN Journal of Engineering and Applied Sciences | Year: 2015

This paper focuses on phase plane diagrams for two species ecological model comprising a mortal commensal and the host species with a constant harvesting of the commensal species. This model is characterized by a couple of first order non-linear ordinary differential equations. The possible three existing equilibrium points of the system are identified and the nature of the ecological interaction between the species is discussed based on the equilibrium points of the model equations through the phase plane diagrams for specific values to the parameters in the model equations. © 2006-2015 Asian Research Publishing Network (ARPN).


Srinivasababu N.,Vignans Lara Institute Of Technology And Science
Advanced Science Letters | Year: 2015

Nature supported with huge amount of natural materials to satisfy human needs, specifically in terms of fibres. Utilization of natural fibres in various engineering applications is a significant subject. In the present work an attempt is made to reinforce a specially grown long time dried hybrid okra fibre botanically called “Abelmoschus Esculentus” into polyester rein to fabricate and test the composites as per ASTM procedures. Then the performance of the composites is further compared with the composites reinforced with the okra fibre in as is condition immediately. From the experimental results it is observed that okra long time dried fibre reinforced polyester composites had shown reasonably good mechanical performance when compared with the composites reinforced with as is fibre. © 2015 American Scientific Publishers All rights reserved.


Srinivasababu N.,Vignans Lara Institute of Technology and Science
Procedia Engineering | Year: 2014

An increase in environmental concern invites the development new eco friendly materials having light weight and superior mechanical performance. In this connection an attempt is made to manufacture composites reinforced with long time exposed dora hemp fibre at ambient conditions into the unsaturated polyester resin. The fabricated composite specimens are processed at P1, P2 and P3 conditions to assess their mechanical performance as per ASTM procedures. Out of all the composites investigated in the present work the dora hemp composites at P2 have shown good tensile and flexural properties, whereas the highest impact strength is achieved for the composites at P1. Hence this class of natural fibre composites is suitable for making automobile components after thorough investigation of necessary parameters. © 2014 The Authors.

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