Browsing by Author "RAGHAVAN, USHA"

Now showing 1 - 2 of 2
  • Thumbnail Image
    Item
    Innovation in Technical Education through Research Based Entrepreneurship
    (2014-03-07T06:07:40Z) RAGHAVAN, USHA
    The technical education system in the country has grown into a fairly large system in the last decade, offering opportunities to the aspiring students in a wide variety of trades and disciplines at various levels. Quality is a dynamic concept that needs to be reviewed and redefined from time to time. Globalization has intensified competition amongst industrial and business sector. We need to achieve global standards that are of great relevance today, since India has a demographic advantage in its favour.We need to nurture and carefully strategize to reap the benefits of human resource.
  • Thumbnail Image
    Item
    Luminescence Of ZnS Nanoparticles In Organic Phase And Effect Of Doping
    (2014-03-07T06:12:55Z) RAGHAVAN, USHA; ANKAMWAR, BALAPRASAD; SASTRY, MURALI
    The present work provides a potentially efficient and a simple chemical route for the synthesis of ZnS & Zn(1-x)MnxS nanocrystals in organic phase at ambient room temperature. The nanostructures of the prepared undoped ZnS and Mn2+ doped ZnS:Mn nanoparticles have been analysed using UV-Vis spectrophotometer and Fourier Transform Infrared studies have been studied. There is a wavelength shift in the emission of manganese doped samples. The size and shape of the synthesized nanoparticles have been studied using the Transmission Electron Microscope. Chemical manipulation towards both size and shape tunable preparation is achieved successfully.