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Padmini S.,SRM University | Christober Asir Rajan C.,Pondichery University
IET Conference Publications | Year: 2011

This paper addresses short-term scheduling of hydrothermal systems by using Particle Swarm Optimization (PSO) algorithm. Particle Swarm Optimization is applied to determine the optimal hourly schedule of power generation in a hydrothermal power system. The developed algorithm is illustrated for a test system consisting of one hydro and one thermal plant respectively. The effectiveness and stochastic nature of proposed algorithm has been tested with standard test case and the results have been compared with earlier works. It is found that convergence characteristic is excellent and the results obtained by the proposed method are superior in terms of fuel cost and computation time.


Padmini S.,SRM University | Rajan C.C.A.,Pondichery University | Chaudhuri S.,SRM University | Chakraborty A.,SRM University
Advances in Intelligent Systems and Computing | Year: 2013

This paper addresses short-term scheduling of two test hydrothermal systems by using Genetic algorithm. Short-term hydrothermal coordination consists of determining the optimal usage of available hydro and thermal resources during a scheduling period of time.Genetic algorithm is applied to determine the optimal hourly schedule of power generation in a hydrothermal power system. The developed algorithm is illustrated for a test system an Indian Utility System which consists of 7 hydro and 4 thermal systems respectively. The effectiveness and stochastic nature of proposed algorithm has been tested with standard test case and the results have been proved to be better than conventional method and results obtained by the proposed method are superior in terms of fuel cost. © 2013 Springer-Verlag.


Padmini S.,SRM University | Rajan C.C.A.,Pondichery University | Murthy P.,SRM University
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) | Year: 2011

This paper addresses short-term scheduling of hydrothermal systems by using Particle Swarm Optimization (PSO) algorithm. Particle Swarm Optimization is applied to determine the optimal hourly schedule of power generation in a hydrothermal power system. The developed algorithm is illustrated for a test system consisting of one hydro and one thermal plant respectively. The effectiveness and stochastic nature of proposed algorithm has been tested with standard test case and the results have been compared with earlier works. It is found that convergence characteristic is excellent and the results obtained by the proposed method are superior in terms of fuel cost. © 2011 Springer-Verlag.


Inglebert S.A.,Sri Ram Engineering College | Kamalraja J.,Pondichery University | Sethusankar K.,RKM Vivekananda College Autonomous | Vasuki G.,Pondichery University
Acta Crystallographica Section E: Structure Reports Online | Year: 2013

In the title compound, C19H19N5, the piperidine ring adopts a chair conformation. The pyridine ring is essentially planar, with a maximum deviation of 0.039 (2) Å for a C atom substituted with a carbonitrile group. The mean plane of the central pyridine ring makes the dihedral angles of 37.90 (14) and 56.10 (12)° with the piperidine and benzene rings, respectively. In the crystal, molecules are linked via N-H⋯N and C-H⋯N hydrogen bonds, forming chains along [101], and enclosing R 22(17) ring motifs. The chains are linked by further C-H⋯N hydrogen bonds, forming two-dimensional networks lying parallel to (10-1), and enclosing inversion dimers with R 22(20) ring motifs.


Inglebert S.A.,Sri Ram Engineering College | Kamalraja J.,Pondichery University | Sethusankar K.,RKM Vivekananda College Autonomous | Vasuki G.,Pondichery University
Acta Crystallographica Section E: Structure Reports Online | Year: 2012

In the title compound, C17H14ClN5, two C atoms and their attached H atoms of the pyrrolidine ring are disordered over two sets of sites with an occupancy ratio of 0.638 (10):0.362 (10). The benzene and pyridine rings are inclined to one another by 60.57 (8)°. In the crystal, the amino group forms an N-H⋯N hydrogen bond with one of the cyano groups, linking the mol-ecules into chains along [010].


Sivaranjani M.S.,Pondichery University | Sunitha R.,Pondichery University
Proceedings of 2nd IEEE International Conference on Engineering and Technology, ICETECH 2016 | Year: 2016

Opinion mining is the process of retrieving the opinion evidences from the reviews and finding their polarity such as positive, negative. Topical term mining enhances the opinion mining in which topical terms have to be extracted along with opinion evidences. Topical terms are specific attribute or quality of a topic. This paper proposes an approach for topical term mining. It aims to assist the users in decision making utilizing the score table. Score table comprises the topical terms of a specific topic along with its positive, negative scores and neutral counts individually. Proposed work incorporates the ontology for identifying implicit topical terms and the variation of maximum opinion score algorithm for finding the polarity. Goals of this approach are 1) to improve the identification of implicit topical terms using ontology 2) to provide accurate estimation of sentiment polarity. © 2016 IEEE.


Inglebert S.A.,Sri Ram Engineering College | Kamalraja J.,Pondichery University | Sethusankar K.,RKM Vivekananda College Autonomous | Vasuki G.,Pondichery University
Acta Crystallographica Section E: Structure Reports Online | Year: 2014

In the title compound, C18H19BrN2O 4, the chromene unit is not quite planar (r.m.s. deviation = 0.199Å), with the methyl C atoms lying 0.027(4) and 1.929(4)Å from the mean plane of the chromene unit. The six-membered carbocyclic ring of the chromene moiety adopts an envelope conformation, with the dimethyl-substituted C atom as the flap. The methylamine and nitro groups are slightly twisted from the chromene moiety, with C - N - C - O and O - N - C - C torsion angles of 2.7(4) and -0.4(4)°, respectively. The dihedral angle between the mean plane of the chromene unit and the benzene ring is 85.61(13)°. An intramolecular N - H⋯O hydrogen bond generates an S(6) ring motif, which stabilizes the molecular conformation. In the crystal, molecules are linked via N - H⋯O hydrogen bonds, forming hexagonal rings lying parallel to the ab plane. A region of disordered electron density, most probably disordered ethanol solvent molecules, occupying voids of ca 432Å3 for an electron count of 158, was treated using the SQUEEZE routine in PLATON [Spek (2009). Acta Cryst. D65, 148-155]. Their formula mass and unit-cell characteristics were not taken into account during refinement. © 2014 CrossMark.


Inglebert S.A.,Sri Ram Engineering College | Kamalraja J.,Pondichery University | Vasuki G.,Pondichery University | Sethusankar K.,RKM Vivekananda College Autonomous
Acta Crystallographica Section E: Structure Reports Online | Year: 2011

In the title compound, C 18H 17N 5, the pyrrolidine ring adopts an envelope conformation. The pyrrolidine ring is disordered over two sets of sites with occupancy factors of 0.648 (6) and 0.352 (6). The dihedral angles between the pyrrolidine and pyridine rings are 14.6 (3)° for the major component and 16.2 (6)° for the ninor component. The crystal structure is stabilized by inter-molecular N - H⋯N and C - H⋯N interactions.

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