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Tindivanam, India

Naik S.K.,SEC | Mishra G.,University of Technology | Mohanty S.K.,University of Technology | Sahoo S.P.,University of Technology | Kabat M.R.,University of Technology
Proceedings - International Conference on Communication Systems and Network Technologies, CSNT 2012 | Year: 2012

Tree based multicast protocols often use hierarchical loss recovery where some special routers called proxy are assigned for retransmission handling. This leads to traffic redundancy and latency. The existing approaches of loss collected retransmission based on X-OR selective principle, which minimizes the number of packets to be retransmitted. However, the receivers send NACKs to the source expecting the retransmission from the source. This overwhelms the source affecting the throughput and processing time. In this paper we analyze the processing time of sender in loss collected retransmission by placing proxies at the intermediate router. The simulation results reveal that our framework minimizes the processing time of sender than simple loss collected retransmission model. © 2012 IEEE. Source

Chhabra A.,SEC | Iyengar S.R.S.,Indian Institute of Technology Ropar | Saini P.,PEC University of Technology | Bhat R.S.,PESIT
Proceedings of the 2015 IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining, ASONAM 2015 | Year: 2015

The phenomenal success of certain crowdsourced online platforms, such as Wikipedia, is accredited to their ability to tap the crowd's potential to collaboratively build knowledge. While it is well known that the crowd's collective wisdom surpasses the cumulative individual expertise, little is understood on the dynamics of knowledge building in a crowdsourced environment. A proper understanding of the dynamics of knowledge building in a crowdsourced environment would enable one in the better designing of such environments to solicit knowledge from the crowd. Our experiment on crowdsourced systems based on annotations shows that an important reason for the rapid knowledge building in such environments is due to variance in expertise. We use, as our test bed, a customized Crowdsourced Annotation System (CAS) which provides a group of users the facility to annotate a given document while trying to understand it. Our results show the presence of different genres of proficiency amongst the users of an annotation system. We observe that the crowdsourced knowledge ecosystem comprises of mainly four categories of contributors, namely: Probers, Solvers, Articulators and Explorers. We infer from our experiment that the knowledge garnering mainly happens due to the synergetic interaction across these categories. © 2015 ACM. Source

Singh B.P.,Panjab University | Virmani N.,Panjab University | Bhargava O.N.,SEC | Kishore N.,Panjab University | Gill A.,Consolidated Contractor International Company
Journal of the Palaeontological Society of India | Year: 2013

Cambrian trilobite taxon Yuehsienszella Chang, 1957 (Cambrian Series 2) is reported from the Kunzum La (=Parahio) Formation in the Parahio Valley, Spiti region of Zanskar-Spiti sub-basin, Northwest Himalaya. The taxon occurs 237 m below the Oryctocephalus indicus level (Cambrian Series 3, Stage 5) and indicates a late Tsanglangpuan age (Cambrian Series 2, Stage 4) for the level within the Kunzum La (=Parahio) Formation at the type section and hence revises the lower age limit to Tsanglangpuan age (Cambrian Series 2). Yuehsienszella is also known from the Cambrian succession of the Salt Range (Pakistan) where it occurs in association with the Redlichia noetlingi. In the Spiti region, Redlichia noetlingi is known from a float. The in situ specimen of Yuehsienszella from the Parahio Valley (Spiti region) supports the presence of equivalent level in the Cambrian of this area. A correlation of the lower Cambrian successions extending from the Salt Range (Pakistan) in the west to the Garhwal Himalaya in east is presented. Source

Integration and splitting are business strategies commonly used by enterprise. This study discusses the impact of the integration and splitting of hospitals from the point of view of efficiency. After using super CCR and context-dependent CCR to assess the performance in various cases, this study finds that the average efficiency of the subsidiary hospitals has been improved after the integration of Chang Gung Memorial Hospital. However, the integration has no significant impact on the efficiency of Chang Gung Memorial hospital itself. Chi Mei Medical Center has improved its efficiency after splitting while the efficiency of Chung Shan Hospital after splitting is worse. Hospital integration should be based on functional complementation, and hospital splitting depends on whether the organizational structure can effectively distribute the current resources to achieve efficient operational performance. © (2013) Trans Tech Publications, Switzerland. Source

Soni J.S.,M. Technology Power System Scholar SEC | Pareek S.,Faculty Electronics Engg. | Agrawal H.P.,SEC
Proceedings - 5th International Conference on Computational Intelligence and Communication Networks, CICN 2013 | Year: 2013

The projected technique is based on the utilization of customized three-level resonant converter topology to increase their power ratings to be in several kilowatts levels. In this technique low voltage stress on switches, made possibility of operation with high frequency, possibility of zero voltage switching, can be applied under a wide range of input and output conditions including high flexibility in operation and control can be achieved using the principle of combined control of frequency and asymmetrical pulse width modulation. In proposed technique the output voltage is regulated through the variation of frequency and input power factor correction are obtained through pulse width modulation control. The proposed topology of converter has been implemented and investigated in the MATLAB/Simulink and the various results are provided to validate the proposed concepts. © 2013 IEEE. Source

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