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Muthu S.,Sri Venkateswara College of Engineering | Prasath M.,Manonmaniam Sundaranar University | Arun Balaji R.,GRT Institute of Engineering and Technology
Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy | Year: 2013

The Fourier transform infrared (FTIR) and FT-Raman spectra of 8-chloro-1-methyl-6-phenyl-4H-[1,2,4]triazolo[4,3-a][1,4]benzodiazepine (8C1M6PB) have been recorded in the range of 4000-400 and 4000-100 cm -1, respectively. A detailed interpretation of the vibrational spectra of this compound has been made on the basis of the calculated potential energy distribution (PED). The equilibrium geometries, harmonic frequencies, infrared intensities and Raman scattering activities were calculated by Hartree-Fock (HF) and density functional B3LYP method with the 6-31G (d,p) basis set. The vibrational frequencies were calculated in all these methods and were compared with the experimental frequencies which yield good agreement between observed and calculated frequencies. The first order hyperpolarizability (βtotal) of this molecular system and related properties (β, μ, and Δα) are calculated using HF/6-31G (d,p) and B3LYP/6-31G(d,p) methods based on the finite-field approach. The calculated Highest Occupied Molecular Orbital (HOMO) and Lowest Unoccupied Molecular Orbital (LUMO) energies show that charge transfer occurs in the molecule. Stability of the molecule arising from hyper conjugative interactions, charge delocalization has been analyzed using natural bond orbital (NBO) analysis. Conformation analysis was carried for 8C1M6PB by Potential energy surface scan to find all possible conformers with B3LYP method using 6-31G (d,p) basis set. The entropy of the title compound is also performed at HF/6-31G (d,p) and B3LYP/6-31G(d,p) levels of theory. In addition, the thermodynamic properties of the compound were calculated at different temperatures and corresponding relations between the properties and temperature were also studied. © 2013 Elsevier B.V. All rights reserved.

Arivukkarasu D.,GRT Institute of Engineering and Technology
Pollution Research | Year: 2014

In India groundwater is the major source of drinking water for millions of rural and urban families. Groundwater is generally less susceptible to contamination and pollution when compared to surface water bodies. Also, the natural impurities in rainwater, which replenishes groundwater systems, get removed while infiltrating through soil strata. In India, where groundwater is used intensively for irrigation and industrial purposes, a variety of land and water -based human activities are causing pollution of this precious resource. Tirupur, Tamilnadu is one of the largest contributors to India's textile output and has 5450 units in this business. But this increasing commercialization has an impact on its environment especially on groundwater. It is facing a severe shortage of potable water. The dyeing and bleaching units are pumping out large quantities of effluents, as a result the ground water and water bodies have degraded up to a large extent. In Tirupur 700 dyeing units discharge 100 million litres of untreated effluents every day. As a result, sludge has deposited largely in NoyyalRiver, a tributary of Cauvery. The Noyyal River has been associated with severe water qualityproblems and the practice of discharging untreated industrial waste into the river course is alarming. The quality of groundwater in Tirupur regions hasbeen deteriorating rapidly during the last decade. In this paper efforts have been made for assessing the quality of groundwater, water samples from the study area were collected and analyzed for physicochemical parameters. Also suggest the prevention of groundwater from textile industries effluents and remedial strategies for sustainable development. Copyright © EM International.

Balamurugan T.,Anna University | Nalini R.,GRT Institute of Engineering and Technology
International Journal of ChemTech Research | Year: 2014

In day today's relevance, it is mandatory to devise the usage of diesel in an economic and environmentally benevolent way. In the present scenario, the very low combustion efficiency of compression ignition engine leads to poor performance of the engine and emission of incomplete combustion by-products. Hence it was planned to increase the combustion efficiency, and thereby to increase the performance and to reduce the exhaust emission by adding n-propanol at different proportions like 2%, 4%, 6%, 8% and 10% by volume with diesel. The performance, combustion and emission characteristics observed while using blended fuels were analyzed and compared with that of diesel as fuel without any additives. The performance analysis revealed that, at full load, the brake thermal efficiency is increases by 11.78% for 10% n-propanol blended with diesel. The emission test reported that, the CO and NOx emissions decreased by 44.12% and 9.33% respectively at full load.

Anu A.,Shri Venkateshwara University | Loganathan R.,Alagappa Chettiar College of Engineering And Technology | Umadevi M.,GRT Institute of Engineering and Technology
IET Seminar Digest | Year: 2013

Cytogenetic is a branch of genetics that is concerned with the study of the structure and function of the cell, especially the chromosomes. The chromosomal identification is of prime importance to geneticist for diagnosing various abnormalities. The existing system is developed to classify the chromosomes based on pixel distribution, centromere index and band patterns using artificial neural network techniques. The accuracy of classification is lowered particularly in sub group 'C'. In this paper we propose a technique where the input images of the unpaired well spread chromosomes are obtained from the electron microscope. Initially noise is removed and edges are detected. Then, each object is extracted from the input image, rotated to align vertically and cropped. Then, the features of each chromosome like major axis length, Area and histogram are analysed and sorted in descending order to perform classification. Then based on the number of objects, the numerical abnormality like monosomy and trisomy are detected. Thus the system is fully automated for well-spread images and semi-automated for images with overlapped chromosomes.

Arivukkarasu D.,GRT Institute of Engineering and Technology
Pollution Research | Year: 2014

Water is the most precious asset in this world; water shortage has been recognized as one of the key issues facing many countries. The water demand is still increasing due to population growth and higher standard of living. The use of domestic rainwater harvesting and greywater treatment systems has potential to supply nearly 20 to 30 percent of domestic water in India households. Wastewater is an immense resource which could have significant applications in regions of water scarcity. Greywater has particular advantages in that it is a large source with a low organic content. This study is aims in greywater recycling technologies, applications. It also suggests simple technologies that sand filters have been shown to achieve only a limited treatment of the greywater whereas membranes were reported to provide good removal of the solids. Disinfection of various microorganisms is achieved by chlorination. The best overall performances were observed within the schemes combining different types of treatment to ensure effective treatment of all the fractions. It has been estimated that water savings in the range of 18-29 percent for an average household could be achieved by reusing greywater. Domestic rainwater harvesting and greywater treatment systems can play a very important role in future water management and prospective sustainable living in India. Copyright © EM International.

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