Browsing by Author "Reddy, P.R."

Filter results by typing the first few letters
Now showing 1 - 5 of 5
  • No Thumbnail Available
    Item
    Climate Change—Present Scenario in Parts of India; Needed Preventive Measures and Role of Earth System Scientists
    (Springer International Publishing, 2015) Venkat Reddy, D.; Reddy, P.R.
    It is now evident, from glacier receding in Himalaya, ice melting in Arctic and Green Land, significant fluctuations in day and night temperatures, unprecedented monsoon vagaries that Climate change is a reality and Man needs to take urgent measures to contain its impact and save himself and Fauna-Fauna. The expected sea water rise, due to ice melting of Polar Regions, is bound to affect the long coastal corridors flanking the eastern and western parts of India. Unfortunately, in spite of many warnings by the Nature in the form of unprecedented spells of cloud bursts during non monsoon seasons of 2012 and 2013 no steps have been initiated to safe guard erosion of our coasts that are inhabited by millions of people. Since both the administrative channels and the political mind set are not tuned to take preventive measures it is essential for the earth system scientists to prepare land erosion, land subsidence, saline water ingression details in space and time using remote sensing and GIS techniques.In this exercise the earth scientists and space scientists should evolve strategies that can convincingly produce models showing how the coastal corridor can be affected with varied intensity and magnitude of sea water rise, in time and space. Specific details of the expected ill effects on the coastal segments of Andhra Pradesh and parts of Tamilnadu will be discussed along with proposed remedial measures to strengthen the wind and tide barriers in these areas. © Springer International Publishing Switzerland 2015.
  • No Thumbnail Available
    Item
    El nino effect
    (CAFET INNOVA Technical Society cafetinnova@gmail.com 1-2-18/103, Mohini Mansion, Gagan Mahal Road, Domalguda, Hyderabad 500029, 2014) Reddy, P.R.; Venkat Reddy, D.V.
    [No abstract available]
  • No Thumbnail Available
    Item
    How to protect your home and neighbourhood from solar flares and solar storms
    (2012) Reddy, P.R.; Venkat Reddy, D.
    [No abstract available]
  • No Thumbnail Available
    Item
    Studies on mechanical properties of porous anodic alumina membranes using microindentation test
    (2015) Reddy, P.R.; Udayashankar, N.K.; Ajith, K.M.
    Porous anodic alumina (PAA) membranes were prepared using two-step self-organized anodization process carried out in 0.3 M oxalic acid at the temperature of about 5 o C. PAA membranes fabricated underconstant potential of 40 V gave optimum ordering of hexagonal pores. Microhardness of the prepared PAA membranes were studied using Vickers hardness test rig. It was observed that microhardness of prepared PAA membraneswere 2.20 GPa and 0.21 GPa for 100 g and1000 g loads respectively. � 2015 AIP Publishing LLC.
  • No Thumbnail Available
    Item
    Studies on mechanical properties of porous anodic alumina membranes using microindentation test
    (American Institute of Physics Inc. subs@aip.org, 2015) Reddy, P.R.; Udayashankar, N.K.; Ajith, K.M.
    Porous anodic alumina (PAA) membranes were prepared using two-step self-organized anodization process carried out in 0.3 M oxalic acid at the temperature of about 5 o C. PAA membranes fabricated underconstant potential of 40 V gave optimum ordering of hexagonal pores. Microhardness of the prepared PAA membranes were studied using Vickers hardness test rig. It was observed that microhardness of prepared PAA membraneswere 2.20 GPa and 0.21 GPa for 100 g and1000 g loads respectively. © 2015 AIP Publishing LLC.