Techno India Salt Lake

Kolkata, India

Techno India Salt Lake

Kolkata, India

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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.


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.


Baidya S.S.,Techno India Salt Lake | Bhattacharyya C.K.,Techno India Salt Lake
Proceedings of the International Conference on Sensing Technology, ICST | Year: 2012

In Wireless Sensor Networks deploying a sensor node ensuring full coverage with connectivity is a real challenge. It is extremely difficult to find an optimal node deployment strategy that can minimize cost, and communicate on overhead and provide a high degree of coverage with network connectivity. In this paper we have made a comparative study to reach an optimum deployment solution using a layered deployment model. We have also presented the trade-offs between optimal coverage and optimal connectivity topology and their mathematical foundations. The simulation results verify the mathematical calculations. © 2012 IEEE.


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.


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.


Maity S.,Techno India Salt Lake | Debnath U.,Indian Institute of Science
International Journal of Theoretical Physics | Year: 2016

In this work, we consider a non-flat universe in the framework of fractal cosmology. We have investigated the co-existence of different kinds of dark energy models such as tachyonic field, DBI-essence, hessence, k-essence, dilaton, quintessence with the modified Chaplygin gas (MCG) in fractal universe and obtained the statefinder parameters. The natures of the scalar fields and the concerned potentials have been analyzed by the correspondence scenario in the fractal universe. © 2016, Springer Science+Business Media New York.


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.


Maity S.,Techno India Salt Lake | Debnath U.,Indian Institute of Science
International Journal of Theoretical Physics | Year: 2016

In this work, we consider a non-flat universe filled with Fermionic field. First, we have considered the holographic dark energy and new agegraphic dark energy in the framework of F-essence cosmology and investigated the consequences for their co-existence. The correspondence of F-essence with the above types of dark energy models have been investigated. The natures of K and Y for these correspondence of F-essence with the above dark energies have been analyzed. © 2015, Springer Science+Business Media New York.


Debnath U.,Bengal Engineering and Science University | Maity S.,Techno India Salt Lake
European Physical Journal Plus | Year: 2014

In this work, we have considered generalized cosmic Chaplygin gas (GCCG) and new variable modified Chaplygin gas (NVMCG) types of dark energies in the framework of F -essence cosmology and investigated the consequences for their co-existence. The correspondence of the F -essence with the above types of Chaplygin gas models has been investigated. The natures of K and Y for this correspondence of the F -essence with all the gases have been analyzed graphically. From the graphical representation, we demand that K always increases with Y due to correspondence, and the EoS parameter w shows that the F -essence model always gives only quintessence type of dark energy and phantom crossing does not happen in our constructed models. © 2014, Società Italiana di Fisica and Springer-Verlag Berlin Heidelberg.


Maity S.,Techno India Salt Lake | Debnath U.,Indian Institute of Science
International Journal of Theoretical Physics | Year: 2015

In this work, we have considered non-flat FRW universe filled with dark matter (with non-zero pressure) and generalized dark energy (GDE) as motivated by the work of Sharif et al. (Mod. Phys. Lett. A 28, 1350180, 2013). Also the dark matter and the dark energy are considered to be interacting. The energy density, pressure and the EoS of the GDE have been calculated for the interacting scenario. For stability analysis of this model, we have also analyzed the sign of square speed of sound. Next we investigate the correspondence between GDE and different other candidates of dark energies such as DBI-essence, tachyonic field, hessenc and electromagnetic field. Also we have reconstructed the potential functions and the scalar fields in this scenario. © 2015, Springer Science+Business Media New York.

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