Dr Sakunthala Engineering College

Chennai. Chennai, India

Dr Sakunthala Engineering College

Chennai. Chennai, India
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Balakrishnan P.,Anna University | Sathiyasekar K.,Dr Sakunthala Engineering College
Proceedings of 2013 International Conference on Power, Energy and Control, ICPEC 2013 | Year: 2013

Transmission line is a vital component that acts as a bridge between the generating stations and end users. In the power system, reliability and stability must be ensured to provide continuity of service. Transmission lines run over several kilometers will have the chance for occurrence of fault. In order to maintain stability, faults should be cleared at short span of time with recent advancements in signal processing. In this paper, a novel technique for the protection of transmission lines is proposed. The proposed system uses Discrete Wavelet Transform (DWT) which is widely used in recent times for power system protection. DWT is used here to extract the hidden factors from the fault signals by performing decomposition at different levels. Daubechies wavelet 'dB6' is used with single level decomposition and adaptive threshold is calculated to discriminate and detect the faulty phase. The location of faults is carried out by obtaining the local fault information and remote location fault information along with the transmission line length. The system is independent of any statistical system data and has negligible fault resistance. Test system is modeled and fault signals are generated to test the reliability of the algorithm. The proposed system promises the result by detecting, classifying and locating all the ten faults possible in the transmission line of the power system. © 2013 IEEE.


Bharathiraja B.,Dr Sakunthala Engineering College | Jayamuthunagai J.,Anna University | Kirubakaran M.A.,Dr Sakunthala Engineering College | VIvek P.,Dr Sakunthala Engineering College | And 2 more authors.
Asian Journal of Chemistry | Year: 2013

Biodegradation of polymeric material has gained considerable attention in recent years, mainly because of the environmental pollution caused by the waste polymers. Several studies have been carried out on the biodegradation of polymers using polymer degrading microorganisms. This work deals with the biodegradation of poly(vinyl alcohol) (PVA), a water soluble synthetic polymer prepared by the hydrolysis of polyvinyl acetate. Poly(vinyl alcohol) was subjected to biodegradation by the microorganism Pseudomonas alcaligenes. P. aclaligenes is a gram negative bacterium that can degrade polycyclic aromatic hydrocarbons. The degradation of PVA by P. alcaligenes was studied using batch method and flow method. The extent of degradation was studied by evaluating the effect of initial concentration of the PVA, effect of size of the inoculum, effect of pH and effect of flow rate. The studies revealed effective results of PVA degradation. In batch method the degradation rate was higher when the initial concentration of PVA was less and pH maintained under alkaline conditions. In flow method the degradation rate was greater at minimum flow rate was maintained in the upflow bioreactor. The degradation capabilities of Pseudomonas alcaligenes have been brought out using effective degradation techniques. The results of this research would help in minimizing the pollution caused by poly(vinyl alcohol) and poly(vinyl alcohol) based materials.


Ajitha E.,Dr Sakunthala Engineering College | Kumar A.N.,Dr Sakunthala Engineering College | Jayanthi A.,Dr Sakunthala Engineering College | Florance D.D.,Dr Sakunthala Engineering College
IIOAB Journal | Year: 2016

A social blogging service is one of the most abundant resources for data collection about one’s personal interest on various things. Collection of these data will result in the explosion of short text messages. The analyzed and collected data contains enormous amount of noise and redundancy. The small scale data set along with a database is designed to collect and handle the text streams. These datasets are clustered based on time (Day wise). Keyword filtering is used to remove the noisy and outlier datasets. A user purchase model is designed which holds two search criteria Such as General Purchase and Profile Based Purchase. The interest is monitored in a continuous manner in social blog through a Hadoop Server. © 2016, Institute of Integrative Omics and Applied Biotechnology. All rights reserved.


Gopal B.G.,Dr Sakunthala Engineering College | Rajamani V.,Dr Sakunthala Engineering College
Journal of Computational and Theoretical Nanoscience | Year: 2017

In electronic communication receiver systems, maximum power gain and minimum noise figure of an amplifier are equally important. However both cannot be achieved simultaneously. A trade-off between these two gives an optimal design. A practical design of single stage Low Noise Amplifier (LNA) is reported in this paper for X-band applications like radar, satellite ground station services and direct broadcast satellite (DBS) service. The LNA is designed with the nonlinear model of Hetero Junction FET. NI/AWR microwave office (MWO) tool is used to construct and simulate the circuit. The performance of the amplifier such as Noise Figure, Gain, VSWR, 1 dB compression point, Third order Intercept point (TOI), Harmonic power levels, Dynamic Range are analyzed by considering all device parasitic elements including package parasitic. This is a hybrid microwave integrated circuit (MIC) implementation which uses both minimal microwave discrete components and micro strip transmission lines for biasing and matching networks. In the previously published report, 30 dB gain using three stages has been achieved. In this work, gain is conveniently improved to 11 dB even with single stage. The IIP3 is also well improved to 15 dBm rather than 1 dBm reported. The 1 dB compression point is also quite better as 7 dBm. © Copyright 2017 American Scientific Publishers All rights reserved.


Karthikeyini C.,PSNA College of Engineering and Technology | Rajamani V.,Dr Sakunthala Engineering College | Raja K.B.,PSNA College of Engineering and Technology
International Journal of Biomedical Engineering and Technology | Year: 2014

This work proposes a new approach to identify the hereditary relation among intra- and inter-class family members using fingerprint minutiae descriptors. The fingerprint images are acquired across three generations, from 324 subjects of 54 families. The thinned ridge patterns are investigated using a number of minutiae points and location, minutiae density and inter-ridge width. The findings are impressive, wherein 85.19% families have similar and 14.81% families have dissimilar ridge patterns. Also, the minutiae points are located proximately for intra-class, which are further validated by clustering. In addition, minutiae density and inter-ridge width for intra-class get well associated compared to inter-class. The study shows that for intra-class members of three generations, the fingerprints are evidently associated. This strongly suggests that certain hereditary information get transmuted as inheritance characteristics and registered in fingerprints. The results obtained explore the possibility of using the fingerprints in various clinical and genetically related studies. © 2014 Inderscience Enterprises Ltd.


Kumaran S.,Dr Sakunthala Engineering College | Palani P.,University of Madras | Chellaram C.,Dr Sakunthala Engineering College | Prem Anand T.,Dr Sakunthala Engineering College | Kaviyarasan V.,University of Madras
International Journal of Pharma and Bio Sciences | Year: 2011

Intravascular thrombosis due to fibrin aggregation in arteries is one of the main causes of cardiovascular disease in humans. Thrombolytic agents such as heparin and Streptokinase have been extensively used in the therapeutic treatment of thrombosis. Search for potent and effective thrombolytic agents from various sources such as bacteria and fungi continue around the world. In the present study, Ganoderma lucidum a higher fungus has been studied for the optimal production of fibrinolytic protease. The physical parameter been identified and standardized for optimal production of biomass and intracellular fibrinolytic protease. The medium composition and design of fermentation condition play vital role in enhancing the efficiency of biomass and by-product production. Out of eight media tested the maximum mycelial biomass of 15 g/L was obtained on day 21 of incubation when the test fungus G. lucidum was grown on fibrin amended potato dextrose broth. Of all the 24 isolates grown on fibrin amended PDA, it was found that the strain VK 12 isolated from Tamarindus indica showed faster growth rate and maximum protease production.


Chellaram C.,Dr Sakunthala Engineering College | Prem Anand T.,Dr Sakunthala Engineering College | Shailaja N.R.,Dr Sakunthala Engineering College | Kesavan D.,HIGH-TECH
Asian Journal of Animal and Veterinary Advances | Year: 2012

The plants, animals and microorganisms of the marine environment with their wide range of chemical diversity are still an unexplored resource for the development of new agro-chemical agents. Works related to the herbicidal activity of the marine organisms are too scanty. Compared to the search for new pharmaceutical compounds, very little effort has been devoted to the exploration of agrochemical compounds from marine natural products. In the present study, the herbicidal activity of the crude extracts and partial purified fractions of Trochus tentorium was assayed using the duckweed, Lemna minor L. following a bench top bioassay. The crude acetone extract of T. tentorium decayed the fronds of Lemna plants at the concentration of 1000 mg mL -1 on the 4th day, while the results of same concentration of ethyl acetate, dichloromethane and methanol extracts showed decay of the plants on the 5th day of the experiment. This study reveals that the column-purified acetone fraction of the gastropod was able to decay L. minor to a better degree in comparison with the crude extracts. Hence, from the present study, it was noted that not only the 100% acetone fractions but also the 20:80 hexane: methanol and 80:20 acetone: methanol fractions showed a higher degree of activity against L. minor. © 2012 Academic Journals Inc.


Chellaram C.,Dr Sakunthala Engineering College | Felicia Shanthini C.,Madras Christian College
Journal of Pure and Applied Microbiology | Year: 2013

The discovery of novel chemical classes has been in decline for the past two decades, the need to exploit new resources in search for effective chemicals with novel mechanism of actions is imperative. Marine bacteria are such a resource yet to be tapped, and the potential it offers is vast. The antitumour assay (artemia toxicity bioassay) developed by McLaughlin et al. is being used as a "bench top bioassay" by many researchers for the preliminary screening of bioactive compounds. In this study 94 Streptomyces strains isolated from different types of corals were screened for artemia and insecticidal activity. The lowest ED50 values were exhibited by 4 strains out of the 94 strains screened. Bacterial extracts exhibiting artemia toxicity were further screened for their insecticidal activity using two storage pests, Tribolium castaneum and Sitophilus oryzae. 59 strains exhibited activity either against Tribolium castaneum or Sitophilus oryzae or both.


Saravanan C.B.,Dr Sakunthala Engineering College | Sugumar R.,Dr Sakunthala Engineering College
2014 International Conference on Information Communication and Embedded Systems, ICICES 2014 | Year: 2014

In the milieu of civil rights law, favoritism refers to undue or crooked healing of people based on affiliate-ship to a sort or a marginal, without gaze at to dignitary merit. Rules extract from statistics bases by in filament mining piece, such as classification or pact rules, when used for verdict tasks such as benefit or acclaim endorsement, can be prejudiced in the above sense. In this paper, the impression of inequitable classification rules is forging and premeditated. On stipulation that a pledge of non-favoritism is exposed to be a non-trivial task. A naive loom, like captivating away all bigoted constituencies, is exposed to be not ample when other milieu fluency is available. Loom lead to a strict formulation of the redlining crisis alongside with a ritual corollary pertaining to prejudiced rules with apparently safe ones by affluence of milieu acuity. © 2014 IEEE.


Vinothkumar G.,Dr Sakunthala Engineering College | Ramya G.,Dr Sakunthala Engineering College | Rengarajan A.,Dr Sakunthala Engineering College
4th International Conference on Advanced Computing, ICoAC 2012 | Year: 2012

In wireless sensor network one of the most security threat is the reactive jammer because of the mass destruction to the sensor communication and it is difficult to disclose. So we have to deactivate the reactive jammers by identifying all the trigger nodes, because the transmission invokes the jammer. Such a trigger identification procedure can work as an application-layer service and benefit many existing reactive jamming defending schemes. In this paper, on the one hand, we leverage several optimization problems to provide a complete trigger-identification service framework for unreliable wireless sensor networks. On the other hand, we provide an improved algorithm with regard to two sophisticated jamming models, in order to enhance its robustness for various network scenarios. theoretical analysis and simulation results are included to validate the performance of this framework. © 2012 IEEE.

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