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The digha is located at the border of West
Bengal and Orissa state. It has both fresh and saline waterbodies rich in aquatic
vegetation and several kinds of birds in the harbours in all the seasons. Grassland
areas, rice fields, herbs, shrubs and trees located in and around the water bodies
provide food and shelter for these birds. Total number of 86 bird species belonging
to 10 orders and 35 families were recorded during the 2-year long study period.
Passeriformes is the dominant order of birds. But the future of this avian fauna
is in danger due to unchecked growth of tourism related hotel industry and urbanisation
of the city.
An approach to optimize the processing parameters to get superior ridging resistance and mechanical properties in commercial production of 430 ferritic stainless steel has been studied. Attention was also paid to improve productivity and energy saving without hampering the surface and mechanical property aspects of the material. Hot rolled coils annealed by slow cooling under insulated cover exhibit better ridging resistance than bell annealing treatment with a minor decrease in ductility. Soaking temperature prior to hot rolling has a significant effect on ridging resistance.