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227 results on '"Agilan, S."'

2. Enhancing Byzantine fault tolerance using MD5 checksum and delay variation in Cloud services

Author

Sathya, C, Agilan, S, and Aruna, A G

Subjects
Computer Science - Distributed, Parallel, and Cluster Computing
Abstract

Cloud computing management are beyond typical human narratives. However if a virtual system is not effectively designed to tolerate Byzantine faults, it could lead to a faultily executed mission rather than a cloud crash. The cloud could recover from the crash but it could not recover from the loss of credibility. Moreover no amount of replication or fault handling measures can be helpful in facing a Byzantine fault unless the virtual system is designed to detect, tolerate and eliminate such faults. However research efforts that are made to address Byzantine faults have not provided convincing solutions vastly due to their limited capabilities in detecting the Byzantine faults. As a result, in this paper the Cloud system is modeled as a discrete system to determine the virtual system behavior at varying time intervals. A delay variation variable as a measure of deviation for the expected processing delay associated with the virtual nodes takes values from the set of P {low, normal, high, extreme}. Similarly, a check sum error variable which is even computed for intra nodes that have no attachment to TCP/IP stack takes values from the set of P {no error, error}. These conditions are then represented by the occurrence of faulty events that cause specific component mode transition from fail safe to fail-stop or byzantine prone., Comment: 22 pages

Published
2018

9. Effect of sintering temperature on the mechanical properties of vacuum sintered Co-(Zn)-Ni-Al alloys

Author

Johnsy Arputhavalli G., Agilan S., Jebasingh S., and Vijay Joseph S.

Subjects
cobalt nickel aluminium alloys, powder metallurgy, vacuum sintering, mechanical properties, Chemical technology, TP1-1185
Abstract

In the present study, the wear resistance behavior and the microhardness of the Co38Ni35Al27 and Co35Zn10Ni32Al23 ferromagnetic shape memory alloys (FSMAs) were investigated. The alloy samples were prepared by powder metallurgy method along with the vacuum sintering technique. The major aim is to prepare an alloy with high wear resistance having remarkable microhardness suitable for the sustainable shape memory alloy. The wear test report shows that the wear resistance is high for the sample sintered at 673 K and it gradually reduces when the sintering temperature decreases. The result also shows that the inclusion of zinc in the alloy increases the wear rate. The maximum hardness value of 126 HV was observed in Co38Ni35Al27 sample sintered at 673 K for 8 hrs because of its minimal porosity.

Published
2020
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12. Comparative study of conventionally sintered Co-Ni-Al alloy with spark plasma sintered alloy

Author

Johnsy Arputhavalli G., Agilan S., Dinesh M., Vijay S.J., and Johnson Roy

Subjects
ferromagnetic shape memory alloy, β+γ martensite phase, high ductility, crystalline structure, spark plasma sintering, Chemical technology, TP1-1185
Abstract

Co-Ni-Al alloy samples were prepared by compacting the powdered alloy at various pressures in proper stoichiometric ratio and the high density compacted alloy was sintered at 673 K. The magnetic, mechanical properties, microstructure and phase analysis were studied and compared with that of spark plasma sintered (SPS) alloy. The sintered alloy exhibit martensitic twin variants with β phase structure. Along with the diffused particle, few agglomerated clusters were observed on the topographic images. The magnetic and the mechanical studies of the test specimens were investigated using the vibrating sample magnetometer, pin on disk tribometer and universal testing machine respectively. The coercivity value and the ductility of the SPS alloy are higher than the same of the as-sintered alloy.

Published
2018
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35. A Review On Automation in Two Wheeler Parking System

Author

Vignesh, S., Agilan, S., Karan, C., Madhu, S., and Shahin, Z. Mohammed

Subjects
Motor, Sensors, Gear, Parking system, Rotary mechanism
Abstract

The continuous development and evolution of vehicle causes insufficient places to park the vehicles. For current situation large spaces is required for parking large number of vehicles. Due to insufficient amount of spaces, vehicles are parked road side and this creates more traffic. This paper discusses the method to overcome this issue by introducing new parking system for two wheelers that provides us to park many two wheelers in a small area of space. In this system rotary mechanism is used for parking large number of two wheelers. When the vehicle is parked small lock is provided to lock the vehicle in the parking slot. After locking the vehicle, slot will move to the original position. This can also be used for future needs, if there is any lack of space to park the vehicles.

Published
2021

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