Assessment of siltation rate and sediment transport in Bombay harbour based on Cesium-137 distribution

Low level aqueous radioactive wastes from the nuclear complex at Trombay are discharged into the Bombay harbour. Of the 6 principal radionuclides comprising the discharge, cesium-137 is most predominantly taken up by silt from the sea water. Isoactivity contours show that activity levels just off the point of discharge, and further south to Pir Pau, were between 50 and 100 pCi/g. Activity in the main channel of the harbour remained below 10 pCi/g, while further north (below the Thane Creek bridge) it was around 20 pCi/g. Activity in the top 6 cm of a core off Trombay naval jetty was <5 pCi/g, reaching a maximum of 178 pCi/g at 14cm below the surface. Thereafter, it tapered off to 5 pCi/g down to a metre

Development of an efficient trap for lobster fishing

A modified trap was developed for fishing spiny lobsters. Experimental fishing was conducted using this trap along with traditional trap (as control) to assess the comparative efficiency. Design details and comparative efficiency of the modified trap is reported in this paper. From the analysis of variance, the difference in average catches between the modified trap and the control is found to be highly significant establishing the high efficiency of new trap

Optimization of Interior Spacing in Car with Help of Air Inflatable Seat

Automobile plays an inevitable role in the present world for transportation of people and goods. Much advancement has done in automobiles to increase various aspects like aesthetics, safety, comfort and engine performance etc., among this, one of the major requirements of modern automobiles is to increase fuel economy. Every design modification that has been made in automobile will need to meet with requirement of increase in fuel economy and engine performance. On considering Indian consumers, their usage and requirements are multipurpose. Their requirement is about having comfortable seating and also having additional space for goods, if the need arise. To comply with above requirement of Indian consumers with improved fuel economy, various concepts are discussed. One among the factor was seat weight. This can be modified by implanting inflatable seats in automobile