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Kolkata, India

Jadavpur University or JU is a premier public research university located in urban metropolitan city of Kolkata, West Bengal.It has two campuses: the main campus at Jadavpur and the new campus at Salt Lake, approximately 12.6 kilometres and 8.8 kilometres from the city centre respectively. A third campus is due to open at the site of the erstwhile National Instruments , opposite the main campus along the Raja S.C. Mullick Road. Wikipedia.

Das S.,Jadavpur University | Suganthan P.N.,Nanyang Technological University
IEEE Transactions on Evolutionary Computation | Year: 2011

Differential evolution (DE) is arguably one of the most powerful stochastic real-parameter optimization algorithms in current use. DE operates through similar computational steps as employed by a standard evolutionary algorithm (EA). However, unlike traditional EAs, the DE-variants perturb the current-generation population members with the scaled differences of randomly selected and distinct population members. Therefore, no separate probability distribution has to be used for generating the offspring. Since its inception in 1995, DE has drawn the attention of many researchers all over the world resulting in a lot of variants of the basic algorithm with improved performance. This paper presents a detailed review of the basic concepts of DE and a survey of its major variants, its application to multiobjective, constrained, large scale, and uncertain optimization problems, and the theoretical studies conducted on DE so far. Also, it provides an overview of the significant engineering applications that have benefited from the powerful nature of DE. © 2010 IEEE. Source

Basu M.,Jadavpur University
Applied Soft Computing Journal | Year: 2011

Economic environmental dispatch (EED) is an important optimization task in fossil fuel fired power plant operation for allocating generation among the committed units such that fuel cost and emission level are optimized simultaneously while satisfying all operational constraints. It is a highly constrained multiobjective optimization problem involving conflicting objectives with both equality and inequality constraints. In this paper, multi-objective differential evolution has been proposed to solve EED problem. Numerical results of three test systems demonstrate the capabilities of the proposed approach. Results obtained from the proposed approach have been compared to those obtained from pareto differential evolution, nondominated sorting genetic algorithm-II and strength pareto evolutionary algorithm 2. © 2010 Elsevier B.V. All rights reserved. Source

Chakraborty S.,Jadavpur University
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics | Year: 2014

A model of an emergent universe is formulated using the mechanism of particle creation. Here the universe is considered as a non-equilibrium thermodynamical system with dissipation due to particle creation mechanism. The universe is chosen as spatially flat FRW space-time and the cosmic substratum is chosen as perfect fluid with barotropic equation of state. Both first and second order deviations from equilibrium prescription are considered and it is found that the scenario of emergent universe is possible in both the cases. © 2014 . Source

Basu M.,Jadavpur University
International Journal of Electrical Power and Energy Systems | Year: 2014

This paper presents an improved differential evolution to determine the optimal hourly schedule of power generation in a hydrothermal system. Differential evolution (DE) exploits the differences of randomly sampled pairs of objective vectors for its mutation process. Consequently the variation between vectors will outfit the objective function toward the optimization process and therefore provides efficient global optimization capability. However, although DE is shown to be precise, fast as well as robust, its search efficiency will be impaired during solution process with fast descending diversity of population. This paper proposes Gaussian random variable instead of scaling factor which improves search efficiency. The algorithm is tested on two test problems and three hydrothermal multi-reservoir cascaded hydroelectric test systems having prohibited operating zones and thermal units with valve point loading. The ramp-rate limits of thermal generators are taken into consideration. The transmission losses are also accounted for through the use of loss coefficients. The results of the proposed approach are compared with those obtained by other evolutionary methods. It is found that the improved differential evolution based approach is able to provide better solution. © 2013 Elsevier Ltd. All rights reserved. Source

Chakraborty S.,Jadavpur University
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics | Year: 2012

In this brief communication, we have studied the validity of the first law of thermodynamics for the universe bounded by event horizon with two examples. The key point is the appropriate choice of the temperature on the event horizon. Finally, we have concluded that universe bounded by the event horizon may be a Bekenstein system and Einstein's equations and the first law of thermodynamics on the event horizons are equivalent. © 2012. Source

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