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Jalandhar, India

Grewal J.S.,Guru Nanak Institutions | Sidhu B.S.,PTU | Prakash S.,Indian Institute of Technology Roorkee
Proceedings of the International Thermal Spray Conference | Year: 2015

Titanium aluminium based nitride (Ti, A1)N coatings possess excellent tribological behaviour with respect to metal cutting and polymer forming contacts. In the present work TiAIN coatings were deposited by plasma spray process. Three coatings of TiAIN were deposited on AISI-347 grade boiler steel substrate out of which two were thin nano coatings deposited at different temperatures of 500°C and 200°C and one conventional coating was deposited by plasma spraying. The as sprayed coatings were characterized with relative to coating thickness, microhardness, porosity and microstructure. The optical microscopy (OM), the XRD analysis and field mission scanning electron microscope (FESEM with EDAX attachment) techniques have been used to identify various phases formed after coating deposited on the surface of the substrate. Subsequently the sliding wear behaviour of uncoated, PVD sprayed nanostructured thin TiAIN coatings deposited at 500°C and 200°C and plasma sprayed conventional coated AISI-347 grade boiler steel were investigated according to ASTM standard G99-03 using pin on disk wear test rig. Cumulative wear volume loss and coefficient of friction, p were calculated for the coated as well as uncoated specimens for 10, 15 and 20 N normal loads at a constant sliding velocity of 1 m/sec. The worn out samples were analysed with SEM/EDAX. Wear rates in terms of volumetric loss (mm3/g) for uncoated and coated alloys were compared. The nanostructured TiAIN coatings deposited at 500°C and 200°C has shown minimum wear rate as compared to conventional TiAIN coating and uncoated AISI-347 grade boiler steel. Nanostructured TiAIN coatings were found to be successful in retaining surface contact with the substrate after the wear tests. © (2015) by ASM International All rights reserved. Source

Kang H.S.,PTU | Mann K.S.,GNDEC
Smart Innovation, Systems and Technologies | Year: 2015

The innovative features of information system, known as, Radiology Information System (RIS), for electronic medical records has shown a good impact in the hospital. The interoperability of RIS with the other Intra-hospital Information Systems that interacts with, dealing with the compatibility and open architecture issues, are accomplished by two novel mechanisms. The first one is the particular message handling system that is applied for the exchange of information, according to the Health Level Seven (HL7) protocol’s specifications and serves the transfer of medical and administrative data among the RIS applications and data store unit. The same mechanism allows the secure and HL7-compatible interactions with the Hospital Information System (HIS) too. The second one implements the translation of information between the formats that HL7 and Digital Imaging and Communication in Medicine (DICOM) protocols specify, providing the communication between RIS and Picture and Archive Communication System (PACS). © Springer India 2015. Source

Baghla S.,PTU | Bansal S.,Punjab Technical University
2014 IEEE International Conference on Computational Intelligence and Computing Research, IEEE ICCIC 2014 | Year: 2014

Beyond 3G or 4G or Fourth generation wireless networks is an era of heterogeneous networks where a large number of wireless networks having different quality of service and features are present simultaneously. To provide ubiquitous access to end users in such environment, vertical handoff mechanism is deployed where an active call or session is transferred from one access point to another depending on the services required by the end user. This optimal network selection among large number of networks available requires consideration of multiple criteria like cost, delay, jitter, available bandwidth etc. To incorporate maximum number of quality of service (Qos) parameters MADM methods provide a promising solution. But MADM methods suffer from two major problems; number of handovers and ranking abnormality. In this paper VIKOR MADM method has been analyzed with various normalization techniques to mitigate the effect of large number of handovers and ranking abnormality. © 2014 IEEE. Source

Bansal J.,PTU | Rani S.,Punjab Technical University | Singh P.,Punjab Technical University
International Journal of Engineering and Technology | Year: 2016

This Paper proposes a novel batch mode scheduling heuristic for scheduling of independent jobs on heterogeneous Grid resources.Proposed heuristic works in two stages, in the first stage Min-Min heuristic is being followed for the assignment of jobs to the resources & in the second stage jobs are being transferred from heavily loaded resource to the lightly loaded resource to achieve load balancing.The proposed heuristic and various existing heuristics were tested and compared within a grid simulator called GridSim[20] The experimental results reveal that the new heuristic performs better in throughput and flowtime value and also provide best resource utilization. Source

Kaushik B.,PTU | Kaur N.,CGC | Kohli A.K.,Thapar University
Applied Soft Computing Journal | Year: 2013

The objective of this paper is to present a novel method to achieve maximum reliability for fault tolerant optimal network design when network has variable size. Reliability calculation is most important and critical component when fault tolerant optimal network design is required. A network must be supplied with certain parameters that guarantee proper functionality and maintainability under worse situations. Many alternative methods for measuring reliability have been stated in literature for optimal network design. Most of these methods mentioned in literature for evaluating reliability may be analytical and simulation based. These methods provide significant way to compute reliability when network has limited size. Also, significant computational effort is required for growing variable sized networks. Therefore, a novel neural network method is presented to achieve significant high reliability for fault tolerant optimal network design in highly growing variable networks. This paper computes reliability with improved learning rate gradient descent based neural network method. The result shows that improved optimal network design with maximum reliability is achievable by novel neural network at manageable computational cost. Crown Copyright © 2013 Published by Elsevier B.V. All rights reserved. Source

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