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Govind Ballabh Pant University of Agriculture and Technology, Pantnagar

After independence, development of the rural sector was considered the primary concern of the Government of India. In 1949, with the appointment of the Radhakrishnan University Education Commission, imparting of agricultural education through the setting up of rural universities became the focal point. Later, in 1954 an Indo-American team led by Dr. K.R. Damle, the Vice-President of ICAR, was constituted that arrived at the idea of establishing a Rural University on the land-grant pattern of USA. As a consequence a contract between the Government of India, the Technical Cooperation Mission and some land-grant universities of USA, was signed to promote agricultural education in the country. The US universities included the universities of Tennessee, the Ohio State University, the Kansas State University, The University of Illinois, the Pennsylvania State University and the University of Missouri. The task of assisting Uttar Pradesh in establishing an agricultural university was assigned to the University of Illinois which signed a contract in 1959 to establish an agricultural University in the State. Dean, H.W. Hannah, of the University of Illinois prepared a blueprint for a Rural University to be set up at the Tarai State Farm in the district Nainital, UP. In the initial stage the University of Illinois also offered the services of its scientists and teachers. Thus, in 1960, the first agricultural university of India, UP Agricultural University, came into being by an Act of legislation, UP Act XI-V of 1958. The Act was later amended under UP Universities Re-enactment and Amendment Act 1972 and the University was rechristened as Govind Ballabh Pant University of Agriculture and Technology keeping in view the contributions of Pt. Govind Ballabh Pant, the then Chief Minister of UP. The University was dedicated to the Nation by the first Prime Minister of India Pt Jawaharlal Nehru on 17 November 1960. The G.B. Pant University is a symbol of successful partnership between India and the United States. The establishment of this university brought about a revolution in agricultural education, research and extension. It paved the way for setting up of 31 other agricultural universities in the country.

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  • ThesisItemOpen Access
    Fabrication and characterization of novel liquid rubber modified epoxy
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2017-11) Gunwant, Dheeraj; Sah, P.L.
    A series of liquid rubber modified epoxies (LREs) were fabricated by dispersing pyrolysis derived liquid rubber (PLR) with concentrations ranging 0-25 wt. % into a commercially available epoxy resin (CY-230) followed by curing with triethylene tetramine (TETA, HY-951). The qualitative dispersion of PLR into cured epoxy was ascertained through atomic force microscopy (AFM) and DC conductivity. The nature of bonding of PLR with epoxy was studied using FTIR spectra. The LREs were cast into different dimensions according to ASTM D specifications. The effect of PLR on their mechanical and thermal properties has been evaluated. With PLR concentration, a regular decrease in hardness, tensile, flexural and compressive properties has been observed. This is attributed to the increase in size of phase separated rubber particles (RPs) as well as plasticization of epoxy matrix due to PLR addition. The impact strength and fracture toughness (KIC) of LREs improved gradually up to 15 wt. % of PLR concentration. This is attributed to the increase in size of plastic zone due to the presence of in the LREs. In order to correlate the improvement in impact strength and KIC values, specimens recovered from these tests were subjected to fractography using FESEM. Cavitation of RPs followed by shear yielding of epoxy matrix was observed to be the most prominent toughening mechanism in LREs. The effect of PLR on thermo-oxidative stability of cured epoxy as well as LREs was investigated through simultaneous thermogravimetric-differential thermal analysis-differential thermogravimetry (TG-DTA-DTG). Micromechanical modeling of LREs was conducted using a finite element (FE) model assuming bcc arrangement of RPs in epoxy matrix. The model was used to explain the lowering of stiffness using a novel scheme based on isotropic stiffness matrix and numerical homogenization technique (NHT). The model was employed to substantiate the experimental findings through stress analysis. Finally, the model was used to predict the effect of RP properties on the elastic properties and stress distributions in LREs.