Informatics Publishing Limited

R. Senthilkumar ¹, S. Vaidyanathan , B. Sivaraman

Affiliations
1 Dept. of Mechanical Engg., Annamalai University, Annamalai Nagar – 608 002, Tamil Nadu, IN

Abstract

An experiment is conducted to enhance the heat-transport capability of capillary assisted heat pipes with an aqueous solution of n-Butanol, and its performance is compared with that of pure water. This study uses an aqueous solution of n-Butanol having a positive surface tension gradient with temperature as a working medium with a view to accomplish an enhancement in the performance of capillary limit of heat pipe systems and operative stability. The test heat pipe is made of a copper tube with an external diameter of 22 mm, and an inner diameter of 19.6 mm. Stainless steel wick of wrapped screen structure has been used in the present study. The experiments were conducted with various heat inputs (40 W, 60 W & 80 W) and the heat pipe was kept at different inclinations of 0°, 45° and 90° with horizontal. The results show that the heat-transport capability of heat pipe with the aqueous solution of n-Butanol is higher than the water heat pipe.

Keywords

Heat Pipe, Aqueous Solution of N-butanol, Surface Tension, Wrapped Screen

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R. Senthilkumar ¹, C. S. Manikanda Babu ²

Affiliations
1 Sri Ramakrishna Engineering College, TamilNadu, IN
2 ECE Department at Sri Ramakrishna Engineering College, TamilNadu, IN

Abstract

Multiplication is one of the most important functions in arithmetic operations. A 1-bit adder is designed using the modified complementary pass transistor logic technique. The proposed adder is implemented in 4 Χ 4 bit high radix multiplier circuit. The paper describes the proposed adder technique for obtaining high speed, lower area, less power dissipation and lower propagation delay. The multiplier circuits were schematized using the DSCH2 Design Tool. Two unsigned multipliers were designed using the proposed modified complementary pass-transistor logic (CPL) adder cell, namely a Carry Save Array multiplier (CSA multiplier) and a Baugh-Wooley multiplier, for comparison with the proposed adder cell-based high radix multiplier. The proposed adder cell-based CSA multiplier and Baugh-Wooley multiplier are compared with the high radix multiplier circuit in terms of power dissipation, propagation delay and area. The proposed 1-bit adder and adder-based high radix multiplier demonstrates better performance than other two high speed multipliers. Proposed adder-based radix-4 multiplier can be used in DSP applications because it gives better performance than the Baugh-Wooley multiplier and CSA multiplier such as power dissipation, propagation delay and area.

Keywords

Complementary Pass-Transistor Logic, High-Radix Multiplier, Radix-4 Multiplier.

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A. Balakumar ¹, R. Senthilkumar ¹

Affiliations
1 Jay Shriram Group of Institutions, IN

Abstract

Reversible data hiding (RDH) in encrypted images, in this encryption method to readable data is converted into unreadable data format to using cipher text. In this data can be displayed into the reversible manner to using a RDH technique and it is a securable one. The reversible information can be inserting into the back side of the image. So, both the images and data can be hided after the encryption. So, no one can access without knowing the encryption key. Finally receiver to the hided images and data can be recovering to the original format without any error. The embed maximum 10 times to improve the image quality compare to the previous method, such as peak to signal noise ratio is 60 db.

Keywords

RDH Technique, Cipher Text, Image Encryption, Privacy Protection.

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R. Senthilkumar ¹, R. Laxmishankar ¹, P. Prabhakaran ¹

Affiliations
1 Department of Mechanical Engineering, J.J. College of Engineering and Technology, Tiruchirappalli, Tamilnadu, IN

Abstract

Growing concern regarding energy resources and the environment has increased interest in the study of alternative sources of energy. Biodiesels offer a very promising alternative to diesel since they are renewable and have similar properties. Papaya seed oil has lower performance efficiency then diesel, but it has only lower exhaust emissions and low cost compare to diesel. The modifications in DI engine place an important role in the world for all fuels to increase the efficiency of engine. This paper presents the effects of modified piston on combustion and emission characteristics of a diesel engine fuelled with papaya seed oil. Combustion efficiency of CI Engine can be increased by designing combustion chamber. A good swirl promotes fast combustion to improve the efficiency. In order to achieve different swirl intensity to improve combustibility of combustible mixture in the cylinder, the piston was modified for papaya seed as alternate fuel.

Keywords

Papaya Oil, Piston Bowl, Combustion Efficiency, Air Swirl, Turbulence.

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J. Sathiyadharani ¹, R. Senthilkumar ², D. Rajkumar ²

Affiliations
1 NPR College of Engineering & Technology, IN
2 M. Kumarasamy College of Engineering, Karur, IN

Abstract

In recent technological world lot of devices are invented. Moreover the focused topic is on security system. Even with lot of security system like finger print based, eye-retina based, pin-code based systems are available, face recognition based security system has vital role of advanced technology. Feature based Face authentication requires feature extraction, feature selection and classification. Face recognition process performance is mainly depended on the selection of such extractor and classifier. Feature extraction process gives the feature points of the face in the image. From that important fiducially points are extracted using feature selection process. One has to reduce the feature points, in order to obtain the fast response of recognition. In this work we proposed the feature extraction process with Gabor filter where it is convenient as a biometric filter. Before going to verification process face localization is important one, then only we can reduce the unnecessary feature points. This is done by Neural network classifier. After the face image is obtained, we go for the authentication process with modified Euclidean distance of each fiducial points that made coefficient model for each person. Best optimized Euclidean distance coefficient of images are obtrained through PSO algorithm. Thus the coefficient of test and trained images are given to the classifier and the minimum mean difference profile made as the matching profile. By this work, we reduced the perception time at significant level compared to previous work and we made the recognition rate of the work as 91.81 percent with PIE database.

Keywords

Feature Extractor, PSO-Particle Swarm Optimization, Fiducial Points, Neural Network Classifiers.

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R. Senthilkumar ¹, T. Arunkumar ¹

Affiliations
1 SCOPE, VIT University, Vellore - 632014, Tamil Nadu, IN

Abstract

Objective: The objective of the survey is to understand the need of software quality metrics in providing better software product. Without knowledge about the quality dependencies, conflicts, incurred costs, and technical feasibility it is very difficult to minimize the cost involved in software development. Statistical Analysis: The Quantitative feedback for the prioritization and cost/benefit considerations for quality requirements is highly recommended. The distinction between the utilization of software metrics and software quality confirmation is necessary to quantify the strength software product against vulnerabilities. The prioritization of software quality attributes is demonstrated to influence the software developers for providing the quality software product. The prioritization is established, product and process metrics. Findings: Various distinctive metrics identifying with upkeep are depicted. This will be trailed by brief exchanges about programmed gathering of software metrics information, use of gathered information, and expenses of software metrics. This survey has been formed with remarkably the quality components reasonableness and steady quality likewise, the quality model versatile quality identity a primary need. It is intended for my future investigation eagerness of ensuring nature of programming by means of mechanized data collection of the product quality measurements. Application: The benefits of an instrument, or a gadget set, to be conveyed, will preferably be to manage the bolster costs in a relationship in a more orchestrated and proficient way.

Keywords

Prioritization, Process Metrics, Product Metrics, Project Metrics, Quality Attributes, Software Quality Metrics.

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I. Gerald Chirstopher Raj ¹, K. Sundararaju ², R. Senthilkumar ²

Affiliations
1 Department of Electrical and Electronics Engineering, PSNA College of Engineering and Technology, Dindigul,Tamil Nadu, IN
2 Department of Electrical and Electronics Engineering, M. Kumarasamy College of Engineering, Karur, Tamil Nadu, IN

Abstract

This paper presents multi stage voltage equalizer to the improvement control performance in PV system to eliminate partial shading issues using fuzzy logic technique. In order to avoid partial shading problem here single switch is used for voltage equalizing purpose then it applied to multi stacked SEPIC converter then get the maximum energy from panels. Here, fuzzy logic concept is used to turn and off for the particular SEPIC switch. Compare to conventional equalizer, these type of single switch topology has minimum size circuits and extract maximum power also. The proposed voltage equalizer can be found by stacking capacitor-inductor-diode (CLD) filter on SEPIC converter. Here, fuzzy logic algorithms are simulated using MATLAB fuzzy logic toolbox. In this paper the fuzzy logic based control circuit is developed to give equal power in all panels. A hardware prototype with three PV panel is implemented. The equalization efficiency is higher than 98% equalization compared with the conventional analog control algorithm. Here, fuzzy logic based multi stack voltage equalizer is simulated using MATLAB/SIMULINK software.

Keywords

Partial Shading, Photovoltaic System, Sepic, Multi Stack Voltage Equalizer, Fuzzy Logic.

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R. Senthilkumar ¹, G. Ulaganathan ²

Affiliations
1 Department of Library and Information Science, Kongunadu Arts and Science College (Autonomous), Coimbatore - 641029, Tamil Nadu, IN
2 Kongunadu Arts and Science College (Autonomous), Coimbatore - 641029, Tamil Nadu, IN

Abstract

This paper discusses about the published research articles and its citation available in the Indian Citation Index by the authors from Lovely Professional University. The relevant data are collected from Indian Citation Index and it was analyzed. It shows among the published. 387 articles, maximum of 148 (38.24%) articles published in 2015 and minimum 1 (0.26%) article published in 2007. Based on the citation study during the period 86 citations were made. Among the Citations, maximum of 20 (23.26%) citations in 2010 and 2015 followed by 19 (22.09%) citations in 2012 was identified.

Keywords

Citation Analysis, Lovely Professional University, Mapping, Research Productivity ICI, Scientometric, Year Wise Distribution.

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R. Kalpana ¹, R. Senthilkumar ¹, S. Sankarakumar ¹

Affiliations
1 Department of English, PSG College of Technology, Coimbatore, Tamil Nadu, IN

Abstract

Graded texts in course books generally contain different reading comprehension passages. An intelligent improvisation on the part of the teacher would help him/her go a long way in exploiting the text book for teaching different items of language, reading skills, grammar and other academic skills. This article is an attempt to formulate more creative ways of using a simple reading passage for teaching different skills, subskills of reading, vocabulary and grammatical items through activities. Instead of frantically hunting down new materials, the teacher can save a huge amount of time and energy. Further, it is also time for the teachers to explore ways of making learning more activity based. These activities would not only cater to different learning styles of learners, but would also make classrooms more interactive, learner-centred and fun-filled. This paper explicates how to build interesting activities around a reading passage with a specific skill/skills focus and also give a step by step description of how these activities can be executed in the classroom.

Keywords

Activity-Based Learning, LSRW Skills, Pre/Post/While-Reading/Summarising/Paraphrasing/Vocabulary.

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