National Institute of Technology, Silchar

About: National Institute of Technology, Silchar is a education organization based out in Silchar, Assam, India. It is known for research contribution in the topics: Computer science & Control theory. The organization has 1934 authors who have published 4219 publications receiving 41149 citations. The organization is also known as: NIT Silchar.

L-Tyrosine loaded nanoparticles: an efficient catalyst for the synthesis of dicoumarols and Hantzsch 1,4-dihydropyridines

Abstract: Environmentally benign L-tyrosine loaded nanoparticles are fabricated and characterized by PCS, TEM, FT-IR and AFM studies. A novel straightforward green approach was applied for the synthesis of dicoumarols and Hantzsch 1,4-dihydropyridines using this catalyst. The structures and purity of these compounds were confirmed by FT-IR and NMR (1H, 13C and DEPT). The flexible and swelling properties of the polymer coating increase L-tyrosine dispersion and its high catalytic activity in organic reactions.

Design of fractional-order hyperchaotic systems with maximum number of positive lyapunov exponents and their antisynchronisation using adaptive control

Abstract: A systematic design procedure for generating fractional-order hyperchaotic systems (FOHSs) with a desired number of positive Lyapunov Exponents (LEs) remains an open problem. This paper puts forwar...

Wide bandwidth microstrip antenna with defected patch surface for low cross polarization applications

Abstract: A simple and single element wide slot dipole loaded shorted rectangular microstrip antenna has been proposed and investigated experimentally for broad impedance bandwidth and improved cross polarized (XP) radiation compared to maximum co-polarized (CP) gain without changing the co-polarized (CP) radiation pattern Around 23-35 dB isolation between CP and XP radiation along with 25% impedance bandwidth is achieved with the proposed structure The measured gain of the antenna is around 62 dBi over the entire band The present antenna is very simple and easy to manufacture Unlike the other structures, the present one is free from back radiation in terms of XP fields The design of the antenna structure is theoretically justified and rigorously analyzed The present investigation provides an insightful, clear visualization-based understanding of the concurrent improvement in both the impedance bandwidth and XP performance with the present structure

Event triggered nonlinear model predictive control for a wastewater treatment plant

Abstract: This paper presents an event triggered nonlinear model predictive control (NMPC) to improve the performance of a wastewater treatment plant (WWTP). The goal of this paper is to design a simplified event triggered NMPC(ETNMPC) suitable for practical implementation. Unlike the conventional NMPC where an optimisation problem is solved at each sampling instant, in the proposed event based formulation of NMPC, the optimisation problem is re-evaluated only when a certain triggering condition is satisfied. A triggering condition is designed based on deviation of error or one step ahead prediction of error from a predefined threshold value. If one of these goes beyond the predefined threshold limit or the time gap from the triggering of last event crosses the maximum allowable time limit, a new event is triggered. The controller is designed to improve the overall performance of a WWTP by regulating two significant variables, i.e. nitrate and dissolved oxygen concentrations at some specified set-points. A conventional NMPC is also designed. The performances of the proposed controller is compared with a conventional NMPC and PI controller. Both NMPC and ETNMPC are able to improve Effluent Quality and Overall Cost Index of the WWTP when compared with PI controller, but a significant reduction in computation and communication(almost 50%) is achieved in the case of ETNMPC when compared with the conventional NMPC.

A Hierarchical Bayesian Network Model for Flood Resilience Quantification of Housing Infrastructure Systems

Abstract: Resilience is defined as the capacity of a system to withstand a natural hazard and to regain desirable performance after the occurrence of such disasters. Natural hazards, such as floods, ...