MPNMJ Engineering College

Erode, India

MPNMJ Engineering College

Erode, India
Time filter
Source Type

Sadasivam S.,PSG College of Technology | Kandasamy K.S.,MPNMJ Engineering College | Ponnusamy K.,NGM College | Subramaniam Nagarajan G.,Dongguk University | Kang T.W.,Dongguk University
Journal of Chemical and Engineering Data | Year: 2011

Sulfuric acid treated biopolymers (STB) were prepared from a lignocellulosic-based agricultural byproduct. The STB has been used as an effective adsorbent in a batch experiment for the removal of methyl parathion (MP) from aqueous solution. The as-prepared STB has been characterized by using surface area analyzer, scanning electron microscope (SEM), elemental analyzer, and proximate analysis methods. A batch adsorption study was carried out to investigate the adsorption equilibrium, kinetics, and thermodynamics as a function of agitation time, initial concentration of MP, initial pH, temperature, and carbon dose. Adsorption data were used to perform the kinetic models. The adsorption data was found to obey the Langmuir adsorption isotherm. Thermodynamic parameters of the adsorption process ΔG, ΔS, and ΔH were calculated, and their negative values indicate the feasible exothermic and spontaneous nature of the process. The diffusion of the MP molecule onto the biopolymer was confirmed by using the Weber-Morris equation. Reichenberg's equation shows the film diffusion of MP. © 2011 American Chemical Society.

Vetrivel K.P.,MPNMJ Engineering College | Subramanian R.,PSG College of Technology | Somasundara Vinoth K.,PSG College of Technology
International Journal of Control Theory and Applications | Year: 2016

Now a day the process of control in machining using aluminium alloys is mostly used in electrical discharge machine in order to ease the machinability. Aluminium alloys reinforced with various particulates are used widely in automotive, aircraft and space applications due to their high strength to weight ratio, excellent processing characteristics as well as improved physical and mechanical properties such as hardness, strength and wear resistance. Conventional machining of these Al based MMCs composite possess several problems including severe tool damage and poor surface finish. Use of Non-conventional machining processes for control the process parameters of machining, Al MMCs can be of more advantageous since it is possible to obtain complex and intricate profiles readily with very little tool wear. In the present work, AlSi7Mg alloy based Metal Matrix Composite (MMCs) reinforced with tungsten carbide powder (WC) and graphite (Gr) were investigated for their parametric process control of machining behaviour using Wire electrical discharge machining (WEDM). Tungsten carbide powder (average particle size less than one microns) in varying weight fractions, 3% 6% 9% respectively along with 3% graphite powder (average particle size less than one microns) were added to the aluminium alloy to produce composites by stir casting method. Hardness measurements on composite specimens indicated that hardness showed an increase with increasing concentration of tungsten carbide (WC). Influence of control process parameters on Material removal rate and surface roughness during wire cut electric discharge machining were investigated. It was observed that material removal rate (MRR) showed a decrease with an increase in weight percentage of reinforcement while surface roughness (SR) showed an increase. Design of Experiments (DoE) was used to maximize the process parameters through the use of Taguchi approach. © International Science Press.

Senthilkumaar S.,PSG College of Technology | Krishna S.K.,MPNMJ Engineering College | Kalaamani P.,Ngmcollege | Subburamaan C.V.,Bharathiar University | And 2 more authors.
E-Journal of Chemistry | Year: 2010

Chemically activated "Waste" Jute Fiber carbon has been effectively used for the removal of five organophosphorous pesticides (malathion, monocrotophos, methylparathion, phosphamidon and dimethoate) from aqueous solutions. The prepared activated jute fiber carbon was characterized by using Elemental analyzer and proximate analysis methods. The adsorption equilibrium was examined at 28 °C. Three different kinetic models, the pseudo first order, pseudo second order and Elovich kinetic models were selected to analyses the adsorption process. To compare the fitness of pseudo first order and pseudo second order, sum of the squares of the errors and correlation coefficient, r 2 values were calculated. The Elovich model was used to confirm the chemisorptions.

Muthu S.,MPNMJ Engineering College | Rakhul T.,Anna University | Jothimani S.,Anna University
International Review of Mechanical Engineering | Year: 2013

The selection of optimum machining conditions, during wire electric discharge machining process, is of great concern in manufacturing industries these days. The increasing quality demands, at higher productivity levels, require the wire electric discharge machining process to be executed more efficiently. As the process involves more than one response characteristic, it is needed to implement the multi-response optimization methodologies for optimize the process parameter and ensuring with low cost of manufacturing. This article addresses an approach based on the Taquchi Data Envelopment Analysis-based Ranking methodology (DEAR) for optimizing wedm operations with multiple responses by using reusable molybdenum wire electrode in Suzhou Baoma BMW 2008 Wirecut EDM. The relation between Input parameters including wire speed, pulse on time, pulse off time, peak current and table feed are optimized with consideration of the multi- response characteristics viz., metal removal rate (MRR), surface roughness (SR) and kerf width (KW) on WEDM in industrial chain link material as EN 9. is studied via experimental result analysis and mathematical modeling. Outputs extracted from Taquchi Data Envelopment Analysis Ranking (DEAR) used for optimization of output parameters resulted with optimal solutions. © 2013 Praise Worthy Prize S.r.l. - All rights reserved.

Kavidha R.,MPNMJ Engineering College | Elangovan K.,PSG College of Technology
International Journal of Applied Environmental Sciences | Year: 2010

Hydrochemistry of groundwater in Erode district, TamilNadu, India was studied to assess the quality of groundwater for determining its suitability for drinking and agricultural purposes. Various physico-chemical parameters, such as pH, total dissolved solids (TDS), hardness, electrical conductivity (EC), sodium, potassium, calcium, magnesium, bicarbonate, carbonate, nitrate, sulphate, chloride and fluoride were determined using standard procedures. The results were compared with the standard values prescribed by the Word Health Organization (WHO 1993). From the drinking water standards, it is found that most of the locations in the study area are contaminated by higher concentration of EC, TDS, K+ and NO3 - due to the rock water interaction and anthropogenic activities such as intense agricultural practices (application of fertilizers, irrigation practice), urban and industrial waste discharge among others. Based on the analytical results, chemical indices like Sodium adsorption ratio (SAR), Sodium percentage (Na %), Salinity hazard and Residual sodium carbonate (RSC) were calculated. The hydro chemical types Ca-HCO3, Na-Cl and mixed Ca-Mg-Cl are the predominant forms in the groundwater followed by water type Ca-Na-HCO3.According to Gibb's diagram maximum samples fall in the rock dominance field. Principal Component Analysis was used to predict the dominating water quality constituents and it revealed that three principal components are accounted for the total chemical variability in the groundwater quality. Assessments of water samples from various methods proved that majority of the water samples are good either for drinking or for agriculture. © Research India Publications.

Sadasivam S.,PSG College of Technology | Krishna S.K.,MPNMJ Engineering College | Ponnusamy K.,NGM College | Nagarajan G.S.,Dongguk University | And 2 more authors.
Journal of Chemical and Engineering Data | Year: 2010

Adsorption of the monocrotophos pesticide from aqueous solution using "waste" jute fiber (JF) has been investigated. Adsorption equilibrium, kinetics, thermodynamics, and mass transfer studies were investigated as a function of agitation time, adsorbent dose, pH, and temperature. The adsorption kinetics were analyzed by using pseudofirst-order and pseudosecond-order kinetic equations. The adsorption isotherm data were fitted well by the Langmuir isotherm model, and the adsorption capacity was found to be 124 mg·L -1. Thermodynamic parameters of the adsorption process, that is, ΔG, ΔS, and ΔH, were calculated, and their negative values indicate the adsorption was exothermic and had a spontaneous nature. The effective diffusion coefficients were calculated with respect to the variation in concentration and temperature. A single-stage batch adsorption process was also designed by using the adsorption isotherm data. © 2010 American Chemical Society.

Ravikumar V.,MPNMJ Engineering College | Chandrakumarmangalam S.,Anna University
Problemy Ekorozwoju | Year: 2016

The Poverty may be a complicated and stereotypical drawback at both national and international levels. There are no bilaterally symmetrical measures known which would be suitable for worldwide application. However, every country takes specific initiatives to tackle poverty and international efforts go along with nation’s efforts for up-rooting this crisis. Creating a compassionate International environment is a serious answer to the current draw-backs. This paper intends to review the poverty level as a threating issue for sustainable development in top four international developing countries. Wiping-out poverty is a supreme international challenge which the world faces nowadays and there is an increasing demand for sustainable development, especially for developing countries. This paper strives to find out in what way impoverishment can have an adverse effect on the countries sustainable development, particularly in developing countries. This paper also aims to explain the cause of poverty, to chalk out a mechanism to wipe it out and to create opportunities for sustainable development. © 2016, Politechnika Lubelska. All rights reserved.

Karthika P.,MPNMJ Engineering College | Karthikeyan P.,Kongu Engineering College
International Journal of Applied Engineering Research | Year: 2015

One of the important functions of Futures market is Price discovery. Futures markets provide a mechanism through which information about current and futures Spot prices can be assimilated and disseminated to all participants in the economy. The ability of future markets to provide information about price is a central theme for the existence of these markets. The paper has examined whether the futures market is performing its primary role of price discovery. The main objective of the study is to examine whether any long run equilibrium relationship exists between spot market and future market and to identify the lead-lag relationship between these markets. The daily NSE closing prices of Nifty Spot Index and Nifty Index Futures of near month contracts from January 2013 to December 2013 have been taken for the study purpose. After obtaining the stationarity of the series by conducting Augmented Dickey Fuller Test, Granger’s Co integration Test and Johansen Co integration Test have been conducted on the Nifty Spot and Nifty futures. The empirical results indicate that there exists long run equilibrium between these two markets. Further Granger’s Causality Test results indicate that there exists lead –lag relationship between these Spot market and Future market. It also shows that there is much feedback from Futures market to Spot market in impounding information in its prices. Finally from overall empirical results we propose that Futures markets are more efficient in discovering the Future spot price. © Research India Publications.

Sustainability essentially involves maintaining level of per capita well-being over time. With coming of the concept of sustainability the line of distinction existing between Human and society got vanished and there was a paradigm shift to understanding the various dimension of human society and their inter linkages along with the challenges we face. This paper reviews contemporary thinking and outlines the challenges with regard to the three very important dimensions, namely: urbanization, food insecurity and agriculture. Among the various reasons for growing food insecurity the key one has been Urbanization and its consequential increase in population. Through this paper we are presenting the ideas and practices of agricultural sustainability dealing with the following problems: Agro-environmental Sources, Inputs System, Socio-Economic system and the various Farming Systems. Also in this paper outline for ideas of urban sustainability incorporating the concept of urban social sustainability, understanding the position of urban ecology have been studied. Concept of urban farming is also important, since it helps to reduce problems in urban food supply by ensuring urban food security. © 2016, Politechnika Lubelska. All rights reserved.

Parthiban K.G.,MPNMJ Engineering College | Vijayachitra S.,Kongu Engineering College
International Review on Computers and Software | Year: 2013

Studying the behavior of spikes in EEG is important for detecting brain abnormality. In EEG recorded signal contain large amount of spikes, so the spike detection is a technical challenge one. Morphological filters are normally used to separate this spikes from the recorded EEG signal. In existing technique the Gaussian function is used in morphological filter to find out the optimal structuring element. Using this function, it cannot find the accurate optimal structuring element, for that we have intended to propose a spike detection method using morphological filter with optimization technique. In the proposed method, initially the EEG signals noise is removed by the wavelet technique and this preprocessed EEG signals are given to the spike detection process. Morphological filter is used for the spike detection, in which optimal structuring elements are computed by the hybrid optimization technique as GA-PSO. After that, an amplitude threshold should be set to detect the occurrence of individual spikes. Hence, the spikes can be detected more effectively by achieving more number of correctly detected spikes rather than the conventional spike detection algorithms. Moreover our proposed technique performance is compared with the PSO and GA optimization methods. © 2013 Praise Worthy Prize S.r.l. - All rights reserved.

Loading MPNMJ Engineering College collaborators
Loading MPNMJ Engineering College collaborators