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Sharma R.,Rp Inderaprastha Institute Of Technology | Kaushik A.,Maharishi Markandeshwar Engineering College | Sharma N.,Rpinderaprastha Institute Of Technology
International Journal of Biomedical Engineering and Technology | Year: 2013

Gene identification is a critical and challenging problem in bioinformatics. The task of gene prediction is to find sub-sequences of bases that encode proteins. The protein coding regions of DNA sequences have period-3 behaviour. This period-3 property can be used for locating the exons. The field of signal processing is deal with numerical sequences. Therefore gene sequence is map into indicator sequence (Binary indicator sequence, complex indicator sequence and grouped indicator sequence) for gene prediction. In this paper grouped indicator sequence is considered. Digital signal processing provides a useful tool for gene prediction. © 2013 Inderscience Enterprises Ltd. Source


Gupta P.,Sant Longowal Institute of Engineering And Technology | Khanna R.,Maharishi Markandeshwer University | Gupta R.D.,Maharishi Markandeshwer University | Sharma N.,Rp Inderaprastha Institute Of Technology
Journal of Engineering Technology | Year: 2012

Wire electric discharge machine (WEDM) is a spark erosion machining process to cut very hard conductive material with the help of a wire electrode. High strength low alloy steel (HSLA) is a hard alloy with high hardness and wear resisting property. The purpose of this study is to investigate the effect of parameters on kerf width for WEDM using HSLA as workpiece. HSLA is used in cars, trucks, cranes, bridges, roller coasters and other structures that are designed to handle large amounts of stress. It is revealed that kerf width decreases with increase in pulse on time, pulse off time, spark gap voltage and peak current. Kerf width increases with increase in wire tension. In order to evaluate the effect of selected process parameters, the response surface methodology (RSM) is used to formulate a mathematical model which correlates the independent process parameters with the desired kerf width. The central composite rotatable design has been used to conduct the experiments. The analysis of results indicates that the spark gap voltage, pulse on time, peak current and pulse off time have a significant effect on kerf width. Source


Sharma N.,Rp Inderaprastha Institute Of Technology | Khanna R.,Maharishi Markandeshwar University | Gupta R.,Maharishi Markandeshwar University
Procedia Engineering | Year: 2013

Wire electric discharge machine (WEDM) is a spark erosion non conventional machining method to cut hard and conductive material with the help of a wire electrode. High strength low alloy steel (HSLA) is a hard alloy with high hardness and wear resisting property. The purpose of this study is to investigate the effect of parameters on metal removal rate for WEDM using HSLA as work-piece and brass wire as electrode. HSLA used in cars, trucks, cranes, bridges, roller coasters and other structures that are designed to handle large amounts of stress. It is observed that metal removal rate and surface roughness increases with increase in pulse on time and peak current. Metal removal rate and surface roughness decreases with increase in pulse off time and servo voltage. Wire mechanical tension has no significant effect on metal removal rate and surface roughness. Response Surface methodology (RSM) is used to optimize the process parameter for metal removal rate and surface roughness. Response Surface Methodology is formulating a mathematical model which correlates the independent process parameters with the desired metal removal rate and surface roughness. The central composite rotatable design (CCRD) has been used to conduct the experiments. © 2013 The Authors. Published by Elsevier Ltd. Source


Sharma R.,Deaprtment of Electronics and Communication Engineering | Sharma R.,Rp Inderaprastha Institute Of Technology | Sharma N.,Rp Inderaprastha Institute Of Technology | Kaushish D.,Geeta Institute of Management and Technology
International Journal of Applied Engineering Research | Year: 2012

Bioinformatics, as its name implies, deals with applying computer science methods on biological problems. It is divided into different sub areas, whereas the area concerning this paper is Gene prediction. Gene sequence has been divided into exons and introns. Gene detections means to find the coding sequence which is exons. The property of period-3 behaviour of exons helps in detecting the sequence, which is detected with the help of filter. © Research India Publications. Source


Sharma N.,Rp Inderaprastha Institute Of Technology | Khanna R.,Maharishi Markandeshwar University | Gupta R.D.,Maharishi Markandeshwar University | Sharma R.,Rp Inderaprastha Institute Of Technology
International Journal of Advanced Manufacturing Technology | Year: 2013

Wire electric discharge machining (WEDM) is a nonconventional machining method to cut hard and conductive material with the help of a moving electrode. High-strength low-alloy steel (HSLA) is a hard alloy with high hardness and wear-resisting property. The purpose of this study is to investigate the effect of parameters on cutting speed and dimensional deviation for WEDM using HSLA as workpiece. It is seen that the most prominent factor for cutting speed and dimensional deviation is pulse-on time, while two-factor interactions play an important role in this analysis. Response surface methodology was used to optimize the process parameter for cutting speed and dimensional deviation. The central composite rotatable design was used to conduct the experiments. The analysis of variance was used for the investigation of significant factors. © Springer-Verlag London 2012. Source

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