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Naguri K.,Jadavpur University | Sil P.,Techno India Salt Lake | Mukherjee N.,Jadavpur University
2015 17th International Conference on E-Health Networking, Application and Services, HealthCom 2015 | Year: 2015

In this paper, we studied different issues related to storing and retrieval of health data. A data model is discussed for storing health records keeping in mind popular national and international standards of Electronic Health Records. The data model is then mapped to a big data solution, namely Cassandra. The mapping is done on the basis of a predetermined set of queries. Next, each of the queries is executed with varying datasizes and performance of the queries is observed. © 2015 IEEE. Source


Maity S.,Techno India Salt Lake | Debnath U.,Bengal Engineering and Science University
International Journal of Theoretical Physics | Year: 2013

In this work, we have assumed the modified Lagrangian of non-linear electrodynamics for accelerated universe. The energy density and pressure for non-linear electromagnetic theory have been considered in terms of both electric and magnetic fields. The Einstein's filed equations have been considered in FRW universe for Hořava-Lifshitz gravity. Since we are considering the non-linear form of Lagrangian for accelerating universe, so four forms of scale factors like logamediate, intermediate, emergent and power law forms are chosen in our investigation. For every expansion, the natures of electric field and magnetic field have been shown through graphical representation. The electric and magnetic fields increase for logamediate, intermediate and emergent expansion and decrease in power law expansion. © 2013 Springer Science+Business Media New York. Source


Maity S.,Techno India Salt Lake | Debnath U.,Bengal Engineering and Science University
Astrophysics and Space Science | Year: 2013

In this work, we have considered different candidates of dark energy such as tachyonic field, DBI-essence, hessence, k-essence and dilaton dark energy in the framework of f-essence cosmology and investigated the consequences for their co-existence. Also we have reconstructed the potential functions and the scalar fields in this scenario. The potential function can be directly obtained in terms of fermionic kinetic term and fermionic Lagrangian density. © 2013 Springer Science+Business Media Dordrecht. Source


Mal A.,Birla Institute of Technology | Mal A.K.,National Institute of Technology Durgapur | Datta S.K.,Techno India Salt Lake
Advances in Intelligent Systems and Computing | Year: 2015

This paper demonstrates design of analog circuits using gm/ID method. It explains the effectiveness of gm − ID approach and then generates required plots using any simulator. Other than complex method of generating gm − ID plots, which requires advanced simulators, it is shown that a plot of ID/gm can be easily generated directly using simulator or through a simple program capable to manipulate device current-voltage data. The success of gm/ID technique lies on the fact that it employs a simple rule of scaling device dimension (w) and scales the current as well as transconductance (gm) equally, when other parameters are constant. Therefore, when a reference device with required gm and ID is found, it can be scaled up to generate desired gm at the given bias current (power) ID. Proposed method is not only technology independent, it is also free from complex mathematical expressions associated with the device as it employs data generated from simulators. As it is not based on analytical methods or models, its accuracy (independent of BSIM or ACM; and their parameter values) is much better specially for analog design. Most importantly incorporating simulator in the design process, analysis of the designed circuit, using the same simulator, is expected to match the desired performance closely. Using this simple approach, design time becomes shorter and a workable design can be made very quickly. Two basic amplifier circuits are designed using the proposed method, and simulation results are discussed. © 2015, Springer India. Source


Sarkar B.B.,Techno India Salt Lake | Cortesi A.,University of Venice | Chaki N.,University of Calcutta
2013 Federated Conference on Computer Science and Information Systems, FedCSIS 2013 | Year: 2013

Bullwhip effect (BWE) refers to the accumulation of stock flowing up and down along the supply chain management (SCM). It reduces the operating efficiency of the chain and blocks the operating resources. Some of the common causes of BWE are demand order variations, long lead times, competence defects between supply chain links, lack of communication among links in the chain, etc. There have been efforts to overcome these issues. However, very little work has been reported based on formal representation and analysis of resource flow in the supply chain system. In this work, a novel framework is proposed using Generalized Stochastic Petri-net (GSPN) model towards handling this issue in a distributed scenario. The analysis on the stochastic nets allows identifying the bottlenecks in the supply chain echelons along with customer relationship management (CRM). This has been used to rebuild infrastructure with the end-objective of reducing the BWE. © 2013 Polish Information Processing Society. Source

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