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Panda A.,Sonakhali Girlss High School | Das C.B.,Tamralipta Mahavidyalaya
Journal of Uncertain Systems | Year: 2014

In this paper we represent a two-vehicle cost varying transportation model. In this model the transportation cost is vary due to capacity of vehicles as well as amount of transport quantity. At first we propose an algorithm to determine unit transportation cost with initial allocation to the basic cells by North-west corner rule. Then solve it. The unit transportation cost vary during optimality test when allocations are changed. Numerical examples are presented to illustrate the two-vehicle cost varying transportation problem(TVCVTP). Finally, comparison is given to show better effective of this model. © 2014 World Academic Press, UK. All rights reserved.


Panda A.,Sonakhali Girls's High School | Das C.B.,Tamralipta Mahavidyalaya
Journal of Uncertain Systems | Year: 2015

In this paper, we focus on the problem formulation and solution procedure of the multi-objective interval transportation problem(MOITP) where the source and destination parameters are expressed as interval values by the decision maker. This problem is a cost varying multi-objective interval transporta- tion problem(CVMOITP). The intervals cost coefficients of the objective functions of this problem are determined by fixed single trip transportation costs of vehicles. After that, this problem is converted into a classical multi-objective transportation problem(MOTP) where to minimize the interval objective function, the order relations that represent the decision marker's preference between interval is defined by the right limit, centre and half-width of an interval. Finally, the equivalent transformed problem is solved by Zimmerman's fuzzy programming technique. © 2015 World Academic Press, UK. All rights reserved.


Sarkar S.,Haldia Institute of Technology | Patra S.,Haldia Institute of Technology | Bera S.K.,Tamralipta Mahavidyalaya | Paul G.K.,Jalpaiguri Government Engineering College | Ghosh R.,Indian Central Mechanical Engineering Research Institute
Physica E: Low-Dimensional Systems and Nanostructures | Year: 2012

We report on the rectifying behavior of sol-gel synthesized Al (1 and 3 at):ZnO/Si (N-n) thin film isotype heterojunctions. The films were dense and uniform over the substrate and show polycrystalline morphology with defined grain boundaries. The current-voltage (I-V) characteristics of the junctions at room temperature and high temperature in air ambient were found to be asymmetric with an increase in rectification ratio (I f/I r) from 1.29 to 3.70 for 1 at and from 0.60 to 2.54 for 3 at of Al (at a bias voltage of 5 V) for increase in temperature upto 150 °C. The I-V characteristics of the junctions were explained on the basis of high temperature carrier injection and single carrier dynamics. © 2012 Elsevier B.V.


Jana A.,Indian Institute of Technology Delhi | Das B.,Tamralipta Mahavidyalaya | Mandal S.K.,Kalyani University | Mabhai S.,Mahishadal Raj College East Midnapore | And 2 more authors.
New Journal of Chemistry | Year: 2016

Proper fusion of fluorescence mechanisms in a single fluorophore unit is highly desirable to obtain better sensitivity, as well as selectivity towards a particular metal ion. In this regard, a Zn2+ chemosensor exhibiting strong fluorescence through synergistic CHEF-PET-ESIPT fluorescence mechanism has not received substantial deployment. This type of chemosensor provides an ample avenue to detect metal ions with a large stokes shift and are useful in living cell imaging study. Herein, we report an unparalleled Zn2+ chemosensor (L) based on these three types of fluorescence mechanisms by condensing 2,6-diformyl-4-methylphenol and 2-hydrazinyl-4,6-dimethylpyrimidine. All the three types of mechanism were experimentally verified by UV-Vis, fluorescence and time resolved photoluminescence (TRPL) spectroscopic evaluation. The sensor L and Zn2+ formed a 1:1 ratio complex demonstrating a high binding constant value (Ka = 4.812 × 105 M-1) and L showed clear discrimination from the Cd2+ ion. The limit of detection (LOD) and limit of quantification (LOQ) were calculated to be 9.727 × 10-7 (M) and 3.24 × 10-6 (M), respectively. We have also shown that cell imaging can be performed using L without many cytotoxicity concerns. © 2016 The Royal Society of Chemistry and the Centre National de la Recherche Scientifique.


Das C.B.,Tamralipta Mahavidyalaya | Roy S.K.,Vidyasagar University
International Journal of Uncertainty, Fuzziness and Knowlege-Based Systems | Year: 2010

In this paper, we propose a new mathematical model to analyze bimatrix goal game under entropy environment. This new approach incorporates the entropy function of the players as an objective to the bimatrix game. The solution concepts behind this game are based on getting the probability to achieve some specified goals. We consider the solution, not only by the payoff values, but also by the probability to get them. Numerical examples are presented to illustrate the methodology in the paper. © 2010 World Scientific Publishing Company.


Goswami S.,Global Group Of Institutions | Das C.B.,Tamralipta Mahavidyalaya
Journal of Uncertain Systems | Year: 2016

The growing use of IP devices in portable applications has created the demand for mobility support for entire networks of IP devices. Network Mobility solves this problem by extending Mobile IP. The protocol is an extension of Mobile IPv6 and allows session continuity for every node in the mobile network as the network moves. The Mobile Router, which connects the network to the Internet, runs the Network Mobility Basic Support protocol with its Home Agent. The protocol is designed so that network mobility is transparent to the nodes inside the mobile network. This paper targets to analyze network mobility issues and requirements. The aim is to explore the idea of route optimization in Network mobility. We classify the schemes established on the basic method for route optimization, and equal the schemes based on protocol overhead, such as header overhead, amount of signaling, and memory requirements. After discussing the need of route optimization in Network mobility, different solutions provided so far are discussed and analyzed. Lastly the performance of the classes of different schemes has to be estimated under norms such as available bandwidth, topology of the mobile network and mobility type. All these issues are explained to provide a future scope of studies in this field. © 2016 World Academic Press, UK. All rights reserved.


Das C.B.,Tamralipta Mahavidyalaya | Roy S.K.,Vidyasagar University
OPSEARCH | Year: 2013

Here, we propose a mathematical model to analyze the multi-objective bimatrix game under entropy environment. In this new approach, the entropy function of each player is considered as an objective to the multi-objective bimatrix game. This model is named as multi-objective entropy bimatrix game model. The formulated model is a multi-objective non-linear programming problem. To solve this model, we have introduced a solution procedure, which determines the feasibility of multi-objective non-linear programming problem using fuzzy programming approach and revised Genetic Algorithm (GA). By a real coded GA we have obtained the bounds of the objectives of the said model. Then we have determined the solutions of our proposed model. Finally, numerical examples are presented to illustrate the methodology. © 2012 Operational Research Society of India.


Sarkar S.,Haldia Institute of Technology | Patra S.,Haldia Institute of Technology | Bera S.K.,Tamralipta Mahavidyalaya | Paul G.K.,Haldia Institute of Technology | Ghosh R.,Haldia Institute of Technology
Materials Letters | Year: 2010

The authors report on the water repellent properties of quasialigned zinc oxide (ZnO) nanowire arrays grown by low-temperature solvothermal technique. The uniform and dense ZnO nanowires of average diameter ∼ 75 nm have been found to have hexagonal wurtzite type structure. The as synthesized ZnO nanowire surfaces have hydrophilic nature with a water contact angle of 73° ± 3°. The superhydrophobic behavior with a water contact angle of 145° ± 3° of the nanowire arrays has been realized due to the reduction of surface free energy after being coated with an octadecyltrichlorosilane (OTS) monolayer. This work may be of huge importance from the viewpoint of both the understanding of the mechanisms involved and industrial applications. © 2009 Elsevier B.V. All rights reserved.


Mandal M.,Tamralipta Mahavidyalaya | Majumdar D.,Tamralipta Mahavidyalaya
Radiochemistry | Year: 2015

A radiotracer technique has been used to achieve the separation of micro quantities of Ag(I) from nitric acid solution using a chromatographic column packed with TODGA-impregnated silica gel. Adsorption of spiked silver on such a column was studied at different acid concentrations and different temperatures. Effects of diverse ions in the adsorption process were also studied. The sorption is adequately described by the classical Freundlich adsorption isotherm over the concentration range from 4 × 10-4 to 60 × 10-4 M. © 2015 Pleiades Publishing, Inc.


Roy S.K.,Vidyasagar University | Das C.B.,Tamralipta Mahavidyalaya
Journal of Uncertain Systems | Year: 2013

This paper analyzes the multicriteria bimatrix goal game under the light of entropy environment. In this approach, the entropy functions of the players are considered as objectives to the bimatrix game. The solution concepts behind this game are based on getting the probability to achieve some specified goals by determining G-goal security strategies (GGSS). We deffne the real coded Genetic Algorithm (GA) to obtain the bounds of the objectives of the proposed game. Then formulated model is solved by fuzzy programming technique. Finally a numerical example is included to illustrate the methodology. © 2013 World Academic Press, UK. All rights reserved.

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