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Rani A.J.M.,Maamallan Institute of Technology | Parthipan L.,Pondicherry Engineering College
2013 International Conference on Recent Trends in Information Technology, ICRTIT 2013 | Year: 2013

This paper proposed Fuzzified Particle Swarm Optimization and K-Harmonic Means algorithm (FPSO+KHM) for clustering the Electrical data systems. Thepartitioned clustering algorithms are more suitable for clustering large datasets. The K-Harmonic means algorithm is center based clustering algorithm and veryinsensitive to the selection of initial partition usingbuilt in boost function, but easily convergence in local optima. The proposed algorithm uses Fuzzified PSO and K-harmonic means algorithm to generate more accurate, robust, better clustering results, best solution in few number of iterations, avoid trapping in local optima and get faster convergence when compare to K-Harmonic Meansand hybrid PSO+ K-Harmonic Means algorithms. This algorithm is applied for two different set of IEEE bus electrical data systems. © 2013 IEEE. Source


Rani A.J.M.,Maamallan Institute of Technology | Parthipan L.,Pondicherry Engineering College
IET Conference Publications | Year: 2012

This paper presents an Improved Particle Swarm Optimization (IPSO) and K- means algorithm for solving clustering problems for document and avoid trapping in a local optimal solution. Recent studies have shown that partitional clustering algorithms are more suitable for clustering large datasets. The K-means algorithm is the most commonly used partitional clustering algorithm because it can be easily implemented and is the most efficient one in terms of the execution time. The major problem with this algorithm is that it is sensitive to the selection of the initial partition and may converge to local optima. So here used Improved Particle Swarm Optimization (IPSO) +K-means document clustering algorithm. The proposed solution generates more accurate, robust and better clustering results when compared with K-means and PSO. IPSO algorithm is applied for four different text document datasets. The number of documents in the datasets range from 204 to over 800, and the number of terms range from over 5000 to over 7000 are take for analysis. Source


Shyju T.S.,Sathyabama University | Anandhi S.,Maamallan Institute of Technology | Sivakumar R.,Alagappa University | Gopalakrishnan R.,Anna University
International Journal of Nanoscience | Year: 2014

Nanoparticle Lead sulfide was synthesized via simple chemical method and deposited on glass substrates at different substrate temperatures by thermal evaporation technique. The synthesized nanoparticle PbS was analyzed and confirmed by X-ray diffraction (XRD), Scanning electron microscopy SEM with EDX and thermogravimetry. The structural, optical, morphological and electrical properties of the deposited films were studied using XRD, UV-Vis, Raman, SEM with EDX, atomicforce microscopy AFM and Hall Effect measurements. The thickness of the deposited samples was measured using thickness profilometer. The Raman shift in the peak occurs toward lower energy with increasing substrate temperature deposited lead sulfide. The Z-scan study with open aperture was carried out at 532 nm using 5 ns laser pulse on the deposited films which shows that nonlinear absorption arises from saturable absorption process. The deposited PbS film exhibits p-type conductivity in Hall measurement. © 2014 World Scientific Publishing Company. Source


Saravanan S.,Maamallan Institute of Technology
2014 IEEE International Conference on Computational Intelligence and Computing Research, IEEE ICCIC 2014 | Year: 2014

This paper demonstrates the automated traffic surveillance without any human intervention. The aim of this paper is to detect the traffic density and to work according to the traffic density. The traffic signal is structured with the camera which takes the snap of the road and the density is identified. Hence by this method the traffic is analyzed and the lights are transferred according to the traffic density. The number of objects present in the roads will be identified and those numbers are transmitted to the micro controller. The micro controller controls the traffic signal and the varied time is displayed in the 7 segment display. By this a dynamic approach is being followed to minimize the traffic delay and effectively commute even in heavy traffic scenarios. The primary aim is to eliminate waiting time, during peak hours. Some added advantage that are to be implemented are dealing at the time of unusual situation such as emergency vehicles like ambulances, patrol vehicles, fire engines etc., Time is varied in propotional to the traffic density. Using this model will eliminate unwanted waiting time in peak traffic hours. Single camera is used in determining density of the traffic which will reduce the cost of implementing. © 2014 IEEE. Source


Elangovan P.,Maamallan Institute of Technology | John Peter A.,Government Arts College | Kyoo Yoo C.,Kyung Hee University
Journal of Luminescence | Year: 2013

Binding energy of an exciton in a wurtzite ZnO/Zn1-xMg xO strained quantum well is investigated theoretically in which the strong built-in electric field due to the spontaneous and piezoelectric polarizations is included. Numerical calculations are performed using variational procedure within the single band effective mass approximation by varying the Mg composition in the barrier. The exciton oscillator strength and the exciton lifetime for radiative recombination as functions of well width and Mg content have been computed. The internal field induced interband emission energy of strained ZnO/Zn1-xMgxO well is investigated with the various structural parameters. The total optical absorption coefficients and the changes of refractive index as a function of normalized photon energy in the presence of built-in internal field are analyzed. The result shows that the strong built-in electric field has influence on the oscillator strength and the recombination life time of the exciton. The optical absorption coefficients and the refractive index changes strongly depend on Mg composition. The occurred blue shift of the resonant peak due to the incorporation of Mg ions will give the information about the variation of two energy levels in the quantum well. © 2013 Elsevier B.V. Source

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