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Bangalore, India

Oxidation of trichloroethylene and derivatives of phenol, which are toxic compounds present in water, to harmless species has been carried out in the presence of modified clays such as HDTMA-immobilized-interlayer-Mn(VII) (surfactant immobilized manganate clay) and M n+-bent-Mn (VII) (metal cations like Al, Cr, Fe, Cu, Ni, Mn & Zn impregnated on manganate clays), by treating the toxic compounds with HDTMA-immobilized-interlayer-Mn(VII) clay and M n+-bent-Mn (VII) clays. The oxidation reaction was monitored by measuring the absorbance after every hour using a UV-Visible spectrophotometer at a definite wavelength. © 2010 Springer Science+Business Media B.V. Source

Mayaja N.A.,Atria Institute of Technology | Srinivasa C.V.,Global Academy of Technology
Proceedings of the 16th International Association for Mathematical Geosciences - Geostatistical and Geospatial Approaches for the Characterization of Natural Resources in the Environment: Challenges, Processes and Strategies, IAMG 2014

Kerala, one of the smallest States of South India, is blessed with forty-four rivers. River Pampa is the third largest river in the State of Kerala, 176km long with a catchment area of 2235Sq. km. Recurring tropical monsoon floods during every season, causing substantial damages, is one of the perennial problems experienced in this river basin. Studying rainfall trend in the river basin and its underlying features are vital in understanding the flood phenomena and its socio-economic impacts. The present study evaluates the trend of rainfall in the Pampa river basin, utilizing the data from five gauging stations. The time series of monthly and annual rainfalls for the past twenty two years have been analyzed statistically. Significant changes have been observed in the basin rainfall features - both seasonal and annual rainfall. © 2014, Capital Publishing Company. Source

Anil P.N.,Global Academy of Technology | Natarajan S.,PES Institute of Technology
Journal of the Indian Society of Remote Sensing

Road extraction from remotely sensed images has always been a challenging problem. In this paper we present an approach for road extraction based on topological derivative and mathematical morphology. The road extraction scheme has three main steps: image segmentation using topological derivative, road cluster identification and road cluster filtering using mathematical morphology. © 2013 Indian Society of Remote Sensing. Source

Preethi B.,Global Academy of Technology | Sumangala B.V.,National Institute of Technology Jalandhar
Lecture Notes in Electrical Engineering

This paper presents the analysis of the FACTS device-thyristor-switched capacitor (TSC) connected on the secondary terminals of the distribution feeder (transformer) in a power system network for effective voltage stability and reactive power control. The FACTS device is advantageous over the mechanical switch operated capacitors in the aspects of faster control, improved system performance, and system voltage stability. The power system network simulations are carried out, and the model of the TSC is realized for a 220 kV transmission line system using Simulink in MATLAB. © 2014 Springer India. Source

Anil P.N.,Global Academy of Technology | Natarajan S.,PES Institute of Technology
ICMLC 2010 - The 2nd International Conference on Machine Learning and Computing

Road Extraction from satellite imagery is of fundamental importance in the context of spatial data capturing and updating for GIS applications. As fully automatic method for feature extraction is difficult due to the increasing complexity of objects. This paper proposes a semi-automatic road extraction methodology from high resolution satellite imagery using active contour model (Snakes). First the image is preprocessed using relaxed median filter. In the next step the user inputs initial seed points on the road to be extracted. Then the road segment is extracted using active contour model. The method is tested using high resolution satellite imagery and the results are presented in the paper. © 2010 IEEE. Source

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