Informatics Publishing Limited

J. Yesudoss ¹, M. Pradeep ¹

Affiliations
1 Department of Computer Science, Sri Ramakrishna Mission Vidyalaya College of Arts and Science, Tamil Nadu, IN

Abstract

Objectives: The main objective of this research is to achieve the quality of software code and abstract identification with high precision and recall values among diverse software program documents.

Methods: Improved Context-Sensitive Document Recovery (ICSDR) method is used to discover the more accurate abstract terms as well as produce the high quality of software code.

Findings: The proposed method achieves high performance in terms of precision, recall and accuracy.

Application/Improvements: The proposed system is done by using Improved Context-Sensitive Document Recovery (ICSDR) approcah. ICSDR method is used for identification of relevance abstract terms and improves the quality of source code significantly.

Keywords

Abstraction, Context-Sensitive, Information Retrieval and Source Code Identifier Quality.

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M. Pradeep ¹, K. Jason ²

Affiliations
1 Department of ECE, JCT college of Engineering and Technology, Coimbatore-105, IN
2 Department of CSE, JCT College of Engineering and Technology, Coimbatore-105, IN

Abstract

Improving performance is one of the major concerns in wireless sensor network; since it impacts the network Qos. In wireless sensor network applications, timely packet delivery is fundamental requirement. Data generated in wireless sensor network may not be alike; some data may be more important than others and hence may have different delivery requirements in congested sensor network. As deployment sizes and data rate grow, congestion arises as major problem in sensor networks leads to dropping of data. In this paper we propose a class of algorithm that enforce differentiated routing based on congested areas of network and data priority. The basic approach called Congestion Alert Routing (CAR) dynamically discovers congested zone of the network that exist between high priority data sources and data sink and, using simple forwarding rules, dedicates this portion of the network to forwarding primarily high priority traffic. While high priority packets are routed inside the conzone, low priority packets generated outside the conzone use off-conzone nodes for routing; there by providing better service. CAR increases the fraction of high priority data delivery, decreases delay and jitter for such delivery while using energy uniformly in deployment. Since CAR reduces the energy consumed in the nodes, it leads to an increase in connectivity life time. Moreover, we look at issues related to real time audio/video traffic and CAR can effectively handle such data.

Keywords

Wireless Sensor Networks, Routing, Differentiated Service, Qos, Congestion.

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R. Suguna ¹, S. Jalaja ², M. Pradeep ¹, R. Senthil Kumar ¹, S. SrikrishnaKumar ¹, K. R. Sugavanam ¹

Affiliations
1 Vel Tech High Tech Dr. Rangarajan and Dr. Sakunthala Engineering College, Avadi, Chennai - 600062, Tamil Nadu, IN
2 Vel Tech Engineering College, Avadi, Chennai - 600062, Tamil Nadu, IN

Abstract

Background/Objectives: To study the improvement of transient stability using FACTS devices (TCSC and STATCOM). Methods/Statistical Analysis: The objectives are met by varying the value of capacitance value of constant capacitor by fluctuating the firing angle of TCR. STATCOM is realized by linking the system with voltage source via transformer. Findings: In the transmission line of 8 bus system FACTS device is used and both ends power transfer is controlled. Major transient parameter are stimulated individually and analysed. Applications/Improvements: The single phase and three phase systems are modeled with and without FACTS device and the results are simulated using MATLAB.

Keywords

Injection of Voltage, STATCOM, TCSC, Transient Stability Improvement

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M. Pradeep ¹, M. Senthil Kumar ², S. Sathiskumar ³, S. Hakkim Raja ⁴

Affiliations
1 Department of EEE, Vel Tech, Chennai - 600062, Tamil Nadu, IN
2 Department of EEE, Anna University Regional Centre, Coimbatore - 641046, Tamil Nadu, IN
3 Department of EEE, Rajalaksmi Institute of Technology, Chennai - 600124, Tamil Nadu, IN
4 Department of EEE, RVS Padhmavathi College of Engineering and Technology, Chennai - 601202, Tamil Nadu, IN

Abstract

Objectives: Solar power or fuel cell produces a very low output voltage (~20 v to 60 v), so we need to boost up voltage with high efficient converter. Method Analysis: Here an isolated converter is used in order to overcome back EMF problem from the load. Designing an Isolated DC low voltage to DC high voltage converter will be of great challenge because converter must handle high input current at the supply side and high output voltage at the loads side. For efficient way, we will be connecting the input parallel and connect the output in series. Findings: Based on this concept two inductors connected in parallel at the input side to share the input current and the capacitor are connected in series at output side to share output voltage in an interleaved manner. Thus the two boost converter cells are demagnetizing by repelling each other, therefore the transformer structure is simplified. By using interleaved operation ripple current will reduced, therefore capacitor and inductor size is reduced both at input and output side. Improvements: And features make on this interleaved isolated boost converter, then it desirable for high power low to high DC application, 40 V DC is boosted to 680 V DC is simulated using MATLAB.

Keywords

Boost Converter, Fuel Cell, MATLAB Simulink, Micro Inverter, Renewable Energy, Solar PV Cell

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