Time filter

Source Type

Hemageetha N.,Periyar University | Nasira G.M.,Chikkanna Government Arts College
International Journal of Control Theory and Applications | Year: 2016

Data mining in agriculture is a novel research field. Analysis of soil is a major component of soil resource management in agriculture. In this paper various soil types are analyzed using Data mining clustering and classification techniques for Salem district. Compared with other classifiers, clustered J48 classifier produce high accuracy result. Soil type classification will help the farmer to cultivate suitable crops in a particular type of soil. © International Science Press.


Sumithra C.,Coimbatore Institute of Technology | Murugavel S.C.,PSG College of Technology | Karthikeyan S.,Chikkanna Government Arts College
Carbon - Science and Technology | Year: 2014

The feasibility of activated carbon prepared from Moringa oleifera fruit shell waste to remove Basic Violet 3 from aqueous solution was investigated through batch mode contact time studies. The surface chemistry of activated carbon is studied using Boehm titrations and pH of PZC measurements indicates that the surface oxygenated groups are mainly basic in nature. The surface area of the activated carbon is determined using BET method. The kinetics of Basic Violet 3 adsorption are observed to be pH dependent. The experimental data can be explained by Pseudo second order kinetic model. For, Basic Violet 3, the Langmuir model is best suited to stimulate the adsorption isotherms. © Applied Science Innovations Pvt. Ltd., India.


Krishnakumar V.,Periyar University | Barathi D.,Nkr Government Arts College W | Mathammal R.,Salem College | Balamani J.,Chikkanna Government Arts College
Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy | Year: 2014

Maltol (3-hydroxy-2-methyl-4pyrone) is widely known as metal ions chelator with many practical applications in catalysis, medicine and food chemistry. The FTIR and FT-Raman spectra of maltol have been recorded in the region 4000-400 and 4000-50 cm-1, respectively. The conformational analysis, optimized geometry, frequency and intensity of the vibrational bands of maltol were obtained by the density functional theory (DFT) with complete relaxation in the potential energy surface using 6-31G* basis set. The observed and the calculated frequencies are found to be in good agreement. The 1H and 13C NMR spectra have been recorded and 1H and 13C nuclear magnetic resonance chemical shifts of the molecule were also calculated using the gauge independent atomic orbital (GIAO) method and their respective linear correlations were obtained. The electronic properties HOMO and LUMO energies were measured. Thermodynamic properties (heat capacity, entropy and enthalpy) of the title compound were calculated. The Mulliken charges, the values of electric dipole moment (μ) of the molecule were computed using DFT calculations. The first order hyperpolarizability (βo) and related properties (β, αo and Δα) of both are calculated using B3LYP/6-31G* method on the finite-field approach. The calculated first hyperpolarizability shows that the molecules are an attractive molecule for future applications in non-linear optics. The intramolecular contacts have been interpreted using Natural Bond Orbital (NBO). © 2013 Elsevier B.V. All rights reserved.


Sivakumar N.,Chikkanna Government Arts College | Chandramohan V.,P.A. College
Journal of Materials Science: Materials in Electronics | Year: 2015

Pure and magnesium doped zinc oxide nanocrystals were synthesized in one molar concentration using zinc acetate dihydrate as starting material by wet chemical method. The prepared nanocrystals were annealed at 350 °C. The impact of addition of different concentrations of magnesium dopant on structural, optical property, surface morphology, and photo-catalytic activity was analyzed and photo-catalytic degradation of methylene blue by pure ZnO and Mg doped ZnO nanocrystals was analyzed in terms of different reaction parameters viz., reaction time, amount of catalyst and concentration of dye were investigated. The results are interpreted in view with the crystallite size and influence of dopant metal. The obtained results reveal that Mg-doping enhances the photo-catalytic performance. © 2015, Springer Science+Business Media New York.


Nasira G.M.,Chikkanna Government Arts College
Asian Journal of Information Technology | Year: 2014

Quality inspection is one of the major problem for fabric manufacturers in textile industries. Textile manufacturing is a process of converting various types of fibers into yarn, woven then into fabric. Weaving is a process of interlacing two distinct yarns namely warp and weft. A fabric fault is any abnormality in the fabric that hinders its acceptability by the user. At present, the fault detection is done manually after production of a sufficient amount of fabric. The nature of work is very dull and repetitive. There is a possibility of human errors with high inspection time in manual inspection, hence it is uneconomical. This study proposed a computer based inspection system for identification of defects in the woven fabrics using image processing and Artificial Neural Network (ANN) with benefits of low cost and high detection rate. The defects consist of hole, stain, warp float and weft float. The inspection system first acquires high quality vibration free images of the fabric. Then, the acquired images are first normalized and preprocessed using image processing techniques then the preprocessed image is converted into binary images based on the threshold value. From the binary image features are extracted and these extracted features are given as input to the Artificial Neural Network (ANN) which uses Back Propagation algorithm to calculate the weighted factors and generates the output. The ANN is trained by using 115 defect free and defected images. © Medwell Journals, 2014.


Gomathi P.M.,P.A. College | Nasira G.M.,Chikkanna Government Arts College
International Review on Computers and Software | Year: 2014

The major objective of the work is concern about the education community in their mission to be with the majority. The initial stage of the work is to study different mechanism for diagnosing learning disability (LD). Medical diagnosing searching becomes the major problem for movements of relationship among eye and dyslexia. To manage these problems several work have been demonstrated. But still it becomes most important difficulty how to extraction of best features from original data and how to improves the detection result in learning disability (LD). In order overcome these difficulties proposed an efficient wavelet transform (WT) for feature extraction and Adaptive Neuro-Fuzzy Inference System (ANFIS) based classifier dyslexia detection from eye movement signal. Eye movement of children was evaluated using Videooculographic (VOG) techniques. During this process both reading and non-reading tasks were measured based on eye movement of each children. After the measurement of eye movement then extract features using WT, then further the diagnosis of learning disability for classification using ANFIS system. Finally evaluate the performance of ANFIS classifier for dyslexia detection from eye movement signal. Compare to ANN based classification,proposed ANFIS Classifier are less computational complication and detection result of methods are compared using parameters like accuracy, sensitivity and specificity, it shows that ANFIS Classifier are higher detection result than existing ANN classification. © 2014 Praise Worthy Prize S.r.l. - All rights reserved.


Rabeeth M.,Chikkanna Government Arts College | Anitha A.,Nehru Arts and Science College | Srikanth G.,Amrita University
Pakistan Journal of Biological Sciences | Year: 2011

Streptomyces griseus (MTCC 9723) is a chitinolytic bacterium isolated from prawn cultivated pond soil of Peddapuram Village; East Godavari District was studied in detailed. Chitinase (EC 3.2.1.14) was extracted from the culture filtrate of Streptomyces griseus and purified by ammonium sulfate precipitation, DEAE-cellulose ionexchange chromatography, Sephadex G-100 and Sephadex G-200 gel filtration chromatography. The molecular mass of the purified chitinase was estimated to be 34, 32 kDa by SDS gel electrophoresis and confirmed by activity staining with Calcofluor White M2R. Chitinase was optimally active at pH of 6.0 and at 40°C. The enzyme was stable from pH 5-9 and up to 20-50°C. The chitinase exhibited Km and Vmax values of 400 mg and 180 IU mL -1 for colloidal chitin. Among the metals and inhibitors that were tested, the Hg +, Hg 2+ and P-chloromercuribenzoic acid completely inhibited the chitinase activity at 1 mM concentration. The purified chitinase showed high activity on colloidal chitin, chitodiose, and chitooligosaccharide. An in vitro assay proved that the crude chitinase, actively growing cells of S. griseus having antifungal activity against all studied fungal pathogen. This result implies that characteristics of S. griseus producing endochitinase made them suitable for biotechnological purpose such as for degradation of chitin containing waste and it might be a promising biocontrol agent for plant pathogens. © 2011 Asian Network for Scientific Information.


Maiyalagan T.,Nanyang Technological University | Karthikeyan S.,Chikkanna Government Arts College
Indian Journal of Chemical Technology | Year: 2013

Exfoliated graphitic nanoplatelets (xGnPs) have been utilized as a potential adsorbent for toxic textile dye Acid Orange 7 (acid dye). The effects of major variables governing the efficiency of the process, such as temperature, initial dye concentration and pH are studied. The kinetic measurements have been used for determining the specific rate constant, confirming the applicability of pseudo first-order rate expression. Plausible mechanism of ongoing adsorption process involved is obtained by carrying out kinetic measurements. To identify whether the ongoing process is particle diffusion or film diffusion, the treatments given by Boyd and Reichenberg have been employed. The influence of different factors on the adsorption of Acid Orange 7 from solution is explained in terms of electrostatic interaction by considering the dye species and the surface character of the xGnPs. The developed system for the removal of acid dye is found to be very useful, economic, rapid and reproducible.


Sumithra C.,Coimbatore Institute of Technology | Karthikeyan S.,Chikkanna Government Arts College
Rasayan Journal of Chemistry | Year: 2014

A carbonaceous adsorbent prepared from an indigenous Moringa oleifera fruit shell waste by carbonate treatment process was tested for its efficiency in removing Acid Blue 92 (AB 92). Adsorption of AB 92 on the Moringa oleifera fruit shell waste showed the highest value around pH 4.0 and followed the pseudo second order kinetic model. The adsorption equilibrium was represented with Langmuir and Freundlich isotherms. To identify whether the ongoing process is particle diffusion or film diffusion, the treatment given by Boyd and Reichenberg was employed. Thermodynamic parameters such as enthalpy change (ΔH), free energy change (ΔG) and entropy change (ΔS) were studied, and the adsorption process of AB 92 was found to be endothermic and spontaneous. © 2014 RASĀYAN. All rights reserved.


Karthikeyan S.,Chikkanna Government Arts College | Babu Rajendran A.,Government Higher Secondary School
Nature Environment and Pollution Technology | Year: 2010

The adsorption of Rhodamine B (Basic dye) on Leucaena leucocephala seed shell waste carbon was investigated to assess the possible use of this adsorbent for the processing of dyeing industry wastewater. The influence of various factors such as initial dye concentration, agitation time and temperature on the adsorption capacity has been studied. The percentage removal of dye is observed to decrease with the increase in initial dye concentration. With increase in temperature the adsorption of dye also increases, indicating endothermic nature of the reaction. Adsorption isothermal data could be interpreted by the Langmuir and Freundlich equations. Kinetic data have been studied using Elovich and Pseudo-second order equations for understanding the reaction mechanism.

Loading Chikkanna Government Arts College collaborators
Loading Chikkanna Government Arts College collaborators