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Bharathi, V.
- Hierarchical Cluster Based Efficient Data Acquisition and Detection of Smart Attackers Using IDS
Authors
1 Department of ECE, Sri Manakula Vinayagar Engineering College, Madagadipet, IN
Source
Networking and Communication Engineering, Vol 9, No 4 (2017), Pagination: 91-95Abstract
Energy consumption and security are major issues in designing Wireless Sensor Network (WSN). In which, Smart attack and selective capture is one of the most important security issues in WSN which cripples the basic data delivery functionality of a base station in the network. In order to overcome this issue, existing Adaptive Defense Management Network (ADMN) utilizes multipath communication and radio range adjustment to improve data acquisition. However it consumes more energy and detection of smart attack is poor. In the proposed Hierarchical Cluster based Efficient Defense Network (HCEDN) the nodes are grouped into cluster. The node near the cluster head will have IDS (Intrusion Detection System) to detect the attackers. The cluster heads in the lower level will vote for cluster heads communicating with Base station to identify smart attackers. In HCEDN, data acquisition is secured between each cluster and base station using IDS and voting for identifying smart attacks. It also overcomes smart attacks by radio frequency adjustment and optimized multipath communication. Hence, the proposed HCEDN optimizes energy level of each node by clustering which increases network life time, throughput and reduces energy consumption compared with existing ADMN.
Keywords
Wireless Sensor Networks, Smart Attacks, Selective Capture, Clusters, Intruder Detection System, Hierarchical Cluster Based Efficient Defense Network, Radio Frequency Adjustment, Multipath Communication, Optimal Path Communication.
- The Wear & Friction Characteristics of Glass-Epoxy Composites for Coal Handling Parts in Thermal Power Plants
Authors
1 Department of Mechanical Engineering, BMS College of Engineering, Bangalore-560019, IN
2 Materials Technology Division, Central Power Research Institute, Bangalore – 560 080, IN
Source
Power Research, Vol 9, No 4 (2013), Pagination: 613-618Abstract
The comparative performance of plain Glass-Epoxy (G-E) system with graphite(2.5wt.%) as filler has been reported for slide wear and friction behavior using pin-on-disc setup under varying loads and sliding velocities. This material is intended for use in coal handling systems. Besides slide wear and coefficient of friction (μ) measurements, examination of worn surface features by scanning electron microscope has been carried out to support the slide wear data. The slide wear data reveal that with increase in sliding speed, wear loss of both G-E composite and G-E plain system increase. Further it is seen that the G-E graphite filled system shows the least wear loss compared to plain G-E system. This trend is observed for all the three loads employed in this work. It is observed that the graphite bearing and plain G-E samples display a rise in the value of μ, when both load and sliding velocity are increased. The coefficient of friction of graphite G-E shows the least compared to plain G-E system irrespective of the load and the sliding velocity employed.