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.

Tailoring the performance of bamboo filler reinforced epoxy composite: insights into fracture properties and fracture mechanism

Abstract: Due to the graded micro-structure and high specific strength-stiffness, bamboo micro fillers are systematically utilized in reinforcing different thermoset and thermoplastic polymers as replacement of conventional glass and carbon fillers. In this work, micro-size bamboo particle fillers are reinforced in ‘specific grade’ thermoset epoxy matrix and its fracture properties has been evaluated by following linear elastic fracture mechanics. To enhance its compatibility with the polymer matrix and to reduce the hydrophilicity, the bamboo micro fillers are surface modified through alkaline treatment. The extent of surface modification and removal of lower weight polymers from filler surface are examined and established by Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction analysis and thermogravimetric analysis. The fracture properties of bamboo-epoxy composite material are observed to be increasing with the addition of bamboo fillers and the maximum value of fracture toughness is 0.678 MPa.m0.5 which is 32% higher than the same for neat epoxy samples. In addition, the mechanisms of notch initiated fracture propagation have also been explained for the understanding of stress singularity present at the preexisted crack tip.

Meta Heuristic Search Algorithms for Short-Term Hydrothermal Scheduling

Abstract: This paper presents the performances of meta heuristic search algorithms in solving short-term hydro thermal scheduling problems. Meta heuristic search algorithms like GA, CEP, FEP, IFEP and PSO have been developed for hydrothermal scheduling problems. The performances of the algorithms are demonstrated on a test case. It has been observed that all the algorithms are capable of finding very nearly global solutions within a reasonable time but PSO algorithm was found to be the most efficient amongst them in terms of convergence rate, solution time and success rate.

3D cuboidal design MIMO/diversity antenna with band notched characteristics

Abstract: In this paper, a non-planar coplanar waveguide (CPW)-fed ultra-wideband (UWB) four-port multiple-input-multiple-output (MIMO)/diversity antenna with a wireless local area network (WLAN) band-notched characteristic is presented. The four antenna elements are arranged in a cuboidal pattern around the polystyrene foam to realize spatial diversity. By embedding an inverted U-shaped open loop resonator in the center of CPW feed, a WLAN notch band is achieved. Further, for improving isolation between adjoining antenna elements, a reflector is positioned between the two surfaces of the cuboidal antenna. The impedance bandwidth (S11