Developing a GIS-based Plume Rose for Industrial Chemical Incident Preparedness and Response

The variable nature of wind speed and direction affects the critical zones of chemical incidents (spills and effluents). We describe a method to develop a GIS-based “plume rose” using its corresponding wind rose to map the areas that might be affected by a chemical release incident. The plume rose can thus be used in the preparation and response phases of emergency management for an industrial chemical incident. In this study, we examine an industrial region in Bangalore, India and show that seasonal variation in winds significantly change the nature (size and direction) of the plume rose.

Bandgap engineering of polymer electrolytes: A simulation based study

The aim is to study how the bandgap can be varied with different functional groups added to the polymer. The calculations are initially compared with the corresponding experimental values for various sulfone compounds.The method is further extended to PEO functionalized with groups like OH, COOH, NH2,NP and(CH3)3Si to study how the bandgap can be engineered by varying the chemistry of the material.The aim is to study how the bandgap can be varied with different functional groups added to the polymer.

A simple explicit model approximating the relationship between speed and density of vehicular traffic on urban roads

With the increase in simulation of urban environments for the purpose of planning, modelling vehicular traffic has become important. While empirical evidence on traffic flow is relatively sparse, models representing the same are being increasingly used for planning urban roads and environments. In this paper, a simple explicit model is proposed to approximate the speed versus density of vehicular traffic flow.