Ln Government College

Ponneri, India

Ln Government College

Ponneri, India
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Velmurugan R.,Ln Government College | Jothi Venkateswaran C.,Presidency College at Chennai | Krishnamurthy M.,k-Technology
International Journal of Control Theory and Applications | Year: 2016

Data mining is an important tool in extracting interesting knowledge from large databases. Finding frequent itemsets and generating association rules from huge amount of database is an important task of it. The primary goal of this, is consumes less memory for storing database and minimize the execution time. Methods: The frequent itemsets generation by the existing algorithms will have more number of scans of database and more number of candidate generations, it uses more number of intermediate tables and the duplicate transactions are not eliminated. In this paper a new technique is proposed by converting the transactions in the database into bit vectors by using counters and by the anti-mirroring concept. Findings: Counters which are fixed to eliminate the duplicates and Anti-mirroring concept is used to reduce the storage space so that all the time, scanning and computing is reduced. The experimental results show the efficiency of the algorithm which outperforms than the existing algorithms. © International Science Press.


Sudharsan A.,SCSVMV University | Seshadri S.,Ln Government College | Saravanan R.R.,AMET University
Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy | Year: 2014

In this work, the vibrational spectral analysis was carried out by using FT-Raman and FT-IR spectroscopy in the range 3500-100 cm-1 and 4000-400 cm-1, respectively, for 3-Bromodiphenylamine (3BDPA). Theoretical calculations were performed by using Density Functional Theory (DFT) method with 6-31G(d,p) and 6-311++G(d,p) basis sets. The complete vibrational assignments of wavenumbers were made on the basis of potential energy distribution (PED). The calculated wavenumbers were applied to simulate spectra of the title compound, which show excellent agreement with observed spectra. The frontier orbital energy gap and dipole moment illustrates the high reactivity of the title molecule. The first order hyperpolarizability (β0) and related properties (μ, α and Δα) of the molecule were also calculated. Stability of the molecule arising from hyperconjugative interactions and charge delocalization were analyzed using natural bond orbital (NBO) analysis. The results show that electron density (ED) in the σ* and π* anti-bonding orbitals and second order delocalization energies (E2) confirm the occurrence of intramolecular charge transfer (ICT) within the molecule. Molecular electrostatic potential (MEP) and HOMO-LUMO energy levels are also constructed. The thermodynamic properties of the title compound were calculated at different temperatures and the results reveals the heat capacity (C), and entropy (S) increases with rise in temperature. © 2014 Elsevier B.V. All rights reserved.


Suthanthiraraj S.A.,University of Madras | Sarojini S.,LN Government College
AIP Conference Proceedings | Year: 2012

Fast ion conducting system (SbI3)0.3-(Ag 2CrO4)0.7 containing 0.3 mole fraction SbI 3 was synthesized by rapid melt-quenching method. The open circuit voltage, (OCV) measured for the solid state primary electrochemical cell fabricated using the above best conducting composition (SbI3) 0.3-(Ag2Cr04)0.7 is found to be 641 mV. Detailed discharge characteristics evaluated under different load conditions for the solid state cell have indicated certain interesting features. © 2012 American Institute of Physics.


Jacinth Salome J.,Ln Government College | Suresh R.M.,Jerusalem College of Engineering
Life Science Journal | Year: 2013

The DNA mciroarray gene data is in the expression levels of thousands of genes for a small amount of samples. From the microarray gene data, the process of extracting the required knowledge remains an open challenge. Acquiring knowledge is the intricacy in such types of gene data, though number of researches is arising in order to acquire information from these gene data. In order to retrieve the required information, gene classification is vital; however, the task is complex because of the data characteristics, high dimensionality and smaller sample size. Initially, the dimensionality diminution process is carried out in order to shrink the microarray data without losing information with the aid of LPP and PCA techniques and utilized for information retrieval. In this paper, we propose an effective gene retrieval technique based on LPP and PCA called LPCA. The technique like LPP and PCA is chosen for the dimensionality reduction for efficient retrieval of microarray gene data. An application of microarray gene data is included with classification by SVM. SVM is trained by the dimensionality reduced gene data for effective classification. A comparative study is made with these dimensionality reduction techniques.


Saraswathi M.,SCSVMV University | Bhuvaneswari T.,Ln Government College
2014 International Conference on Communication and Network Technologies, ICCNT 2014 | Year: 2014

Today's businesses can attain applications on demand using cloud computing. Multi-tenancy is a significant feature of cloud computing in which a single application is shared among multiple tenants. Multi-tenancy offers variety of advantages including cost savings, resource utilization, version control and more. Currently more applications are moved from organization's internal infrastructure to data centers using shared infrastructure that provide Software as a Service (SaaS) to large number of organizations. This paper is devoted to discussing different options for implementing multitenancy such as An Efficient Schema Shared Approach for Cloud Based Multitenant Database with Authentication & Authorization Framework and A Non-Intrusive Multi-Tenant Database For Large Scale Applications. Finally analyze the two solution with various factors. © 2014 IEEE.


Senkamalavalli R.,SCSVMV University | Bhuvaneshwari T.,Ln Government College
2014 International Conference on Information Communication and Embedded Systems, ICICES 2014 | Year: 2014

The way in which companies interact with their customers has changed dramatically over the past few years. A customer's containing business is no longer guaranteed. As a result, companies have found that they need to understand their customers better, and to quickly respond to their wants and needs. In addition, the time frame in which these responses need to be made has been shrinking. It is no longer possible to wait until the signs of customer dissatisfaction are obvious before action must be taken. To succeed, companies must be proactive and anticipate what a customer desires. In this paper we are going to discuss the Data Mining techniques used in Customer Relationship Management. © 2014 IEEE.


Rajesh Kumar T.,Loyola College | Jerald Vijay R.,Loyola College | Jerald Vijay R.,Ln Government College | Jeyasekaran R.,Loyola College | And 3 more authors.
Optical Materials | Year: 2011

Single crystals of bimetallic MnHg(SCN)4 (abbreviated as MMTC) are grown by slow cooling method and the second and third order optical nonlinearities are investigated by Kurtz and Perry powder SHG test and single beam Z-scan technique respectively. The influences of SCN ligand in modifying the NLO properties are discussed and the results are compared with other organometallic crystals. The nonlinear refractive index, absorption coefficient and third order susceptibility are estimated to be -1.88 × 10 -11 cm2/W, 8.65 × 10-6 cm/W and 6.58 × 10-9 esu, respectively. The optical absorption of MMTC single crystal was recorded and the corresponding direct band gap is found to be 4.2 eV. The phase matching and laser induced damage threshold studies are also carried out. The FT-IR and photoluminescence spectroscopic techniques were employed to identify the composition and luminescence nature of the crystal. © 2011 Elsevier B.V. All rights reserved.


Jagannathan L.,Ctte College For Women | Meenakshi R.,Ctte College For Women | Gunasekaran S.,Pachaiyappas College | Srinivasan S.,Ln Government College
Molecular Simulation | Year: 2010

The FT-IR and FT-Raman spectra of carvedilol were recorded in the regions 4000-400 and 3500-100cm-1, respectively. The electronic absorption spectrum was recorded in the region 400-200nm. In the present study, AM1 and PM3 semi-empirical molecular orbital methods were employed to study molecular structure as well as to predict infrared spectra. The AM1-optimised geometry was used in the density functional theory (DFT) calculation to predict the oscillator strength, electronic transition energies between the orbitals and wavelength of the transitions. The DFT-based NMR calculation procedure was used to assign the 1H NMR chemical shift of carvedilol. The electron density-based local reactivity descriptors such as Fukui functions were calculated to explain the chemical selectivity or reactivity site in carvedilol.


Meenakshi R.,Ctte College For Women | Jagannathan L.,Ctte College For Women | Gunasekaran S.,Pachaiyappas College | Srinivasan S.,Ln Government College
Molecular Simulation | Year: 2010

Fourier transform infrared and Raman spectra of trimetazidine (TMZ) were recorded. The structure, geometry optimisation and vibrational frequencies were investigated. The specific mode of normal coordinate analysis was made for the stable conformer of the molecule using restricted Hartree-Fock (RHF) and density functional theory (DFT) calculations (B3LYP) with the 6-31G(d,p) basis set. Comparison of the observed fundamental vibrational frequencies of the molecule and calculated results by RHF and DFT methods indicates that B3LYP is superior to molecular vibrational problems. The thermodynamic functions of the title molecule were also calculated using the RHF and DFT methods. The DFT-optimised geometry was used in the time-dependent DFT and ZINDO calculations to predict the oscillator strength, electronic transition energies between the orbital and wavelength of the transitions. The DFT-based NMR calculation procedure was used to assign the 1H NMR chemical shift of TMZ. The electron density-based local reactivity descriptors such as Fukui functions were calculated to explain the chemical selectivity or reactivity site in TMZ. © 2010 Taylor & Francis.


Meenakshi R.,Ctte College For Women | Jaganathan L.,Ctte College For Women | Gunasekaran S.,Pachaiyappas College | Srinivasan S.,Ln Government College
Molecular Simulation | Year: 2010

Fourier transform infrared and Raman spectra of nicorandil have been recorded. The structure, conformational stability, geometry optimisation and vibrational frequencies have been investigated. Complete vibrational assignments were made for the stable conformer of the molecule using restricted Hartree-Fock (RHF) and density functional theory (DFT) calculations (B3LYP) with the 6-31G(d,p) basis set. Comparison of the observed fundamental vibratioal frequencies of the molecule and calculated results by RHF and DFT methods indicates that B3LYP is superior for molecular vibrational problems. The thermodynamic functions of the title molecule were also performed using the RHF and DFT methods. Natural bond order analysis of the title molecule was also carried out. Comparison of the simulated spectra with the experimental spectra provides important information about the ability of the computational method to describe the vibration modes. © 2010 Taylor & Francis.

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