Government College

About: Government College is a based out in . It is known for research contribution in the topics: Population & Ring (chemistry). The organization has 4481 authors who have published 5986 publications receiving 57398 citations.

Support vector machine classifier based detection of fungal rust disease in Pea Plant ( Pisam sativam )

Abstract: The present study is based on the image processing techniques to identify and classify fungal rust disease of Pea. Rust disease is caused by Uromyces fabae (Pers.) de Bary in the form of rust-colored pustules on the leaves. The plant disease detection is limited by human visual capabilities due to microscopic symptoms of the disease and for that image processing techniques seems to be well adapted. The goal of this paper is to detect, to identify the early symptoms of rust disease at the microscopic level. The performance of various preprocessing, feature extraction and classification techniques was evaluated on microscopic images. Finally support vector machine classifier was used to detect the leaf disease of Pea Plant. The proposed system can successfully detect and examined disease with accuracy of 89.60%. Focus has been done on the early detection of rust disease at microscopic level which avoids spreading of disease not only on the whole plant but also to the other plants.

Simultaneous scheduling of machines and tools in multimachine flexible manufacturing systems using artificial immune system algorithm

Abstract: This article deals with simultaneous scheduling of machines and tools in a multimachine flexible manufacturing system to generate best optimal sequences that minimise makespan. As flexible manufacturing system (FMS) is an integrated manufacturing facility, simultaneous scheduling of different components of FMS is essential. In this research work, attempts have been made to integrate machines and tools. The aim of this article is to address combined machine and tool scheduling in a FMS consisting of machines and a central tool magazine. Four heuristics, priority dispatching rules, modified nondelay schedule generation algorithm with six different priority dispatching rules, modified Giffler and Thompson algorithm and artificial immune system (AIS) algorithm, have been proposed for solving combined machine and tool problems with makespan as objective. The proposed heuristics are numerically tested on various problems and the results are compared. The result shows that AIS algorithm yields better results for...

Microstrip feed spanner shape monopole antennas for ultra wide band applications

Abstract: An optimized design for the spanner shape regular hexagonal monopole (RHM) patch antennas has been reported to yield ultra wide band (UWB) impedance bandwidth. Impedance and radiation characteristics are presented and discussed. From the results, it has been observed that, the impedance bandwidth, defined by 10 dB return loss, can reach a value of 8.63GHz. A rectangular slit in the radiating patch is used to reduce the lower-edge frequency resulting in improved bandwidth. This technique yields the ability to construct a smaller antenna in comparison to a simple printed planar monopole antenna for a given frequency range. The printed metallic patch is defected for increasing the operating bandwidth. The antennas considered in this paper operate between 2.95 GHz to 11.58 GHz, making them suitable for numerous DECT, WLAN, remote sensing, radar, imaging, localization and medical applications. The etched area of the antenna can be used for communication circuit components.