University of Rajasthan

About: University of Rajasthan is a education organization based out in Jaipur, India. It is known for research contribution in the topics: Chemical shift & Derivative (chemistry). The organization has 15058 authors who have published 15733 publications receiving 117400 citations. The organization is also known as: Rajasthan University.

Comparative Heat Transfer Analysis of MoS2/C2H6O2 and SiO2-MoS2/C2H6O2 Nanofluids with Natural Convection and Inclined Magnetic Field

Abstract: This article explores the comparative analysis of MoS2/C2H6O2 nanofluid and SiO2-MoS2/C2H6O2 hybrid nanofluid natural convective boundary layer flow through a stretching area. Uniform inclined magnetic field is applied together with viscous dissipation. The governing model of the flow is solved by Runga-Kutta fourth orde method using appropriate similarity transformations. Temperature and velocity field are presented for various flow pertinent parameters. It is conclude that if we give an increment in the convection parameter the velocity profile increases and opposite effect is noticed for the temperature profile for both fluids. Also with increased volume fraction parameter Φ2, we get increased velocity and temperature profiles for both nanofluids.

Proton-Lambda correlations in central Au+Au collisions at root s(NN)=200 GeV

Abstract: We report on p-Lambda, p-(Lambda) over bar, (p) over bar-Lambda, and (p) over bar-(Lambda) over bar correlation functions constructed in central Au-Au collisions at root s(NN) = 200 GeV by the STAR experiment at RHIC. The proton and lambda source size is inferred from the p-Lambda and (p) over bar-(Lambda) over bar correlation functions. It is found to be smaller than the pion source size also measured by the STAR experiment at smaller transverse masses, in agreement with a scenario of a strong universal collective flow. The p-(Lambda) over bar and (p) over bar-Lambda correlation functions, which are measured for the first time, exhibit a large anticorrelation. Annihilation channels and/or a negative real part of the spin-averaged scattering length must be included in the final-state interactions calculation to reproduce the measured correlation function.

Glass transition phenomena, crystallization kinetics and thermodynamic properties of ternary Se80Te20−xInx (x=2, 4, 6, 8 and 10) semiconducting glasses: theoretical and experimental aspects

Abstract: This paper presents the results of kinematical studies of glass transition and crystallization in glassy Se 80 Te 20− x In x ( x =2,4, 6, 8 and 10) using differential scanning calorimetry (DSC). Also the thermodynamic properties of these glasses in the transformation range of temperatures have been studied. Glass transition region has been investigated in terms of activation energy, dependence of glass transition temperature on coordination number with the varying composition and heating rates. The growth kinetics and its dimensionality have been investigated using three different models viz. Kissinger, Ozawa and Matusita equations. On the basis of the obtained experimental results on phase transformations in these glasses, thermodynamic parameters like entropy difference between metastable states in the glassy region, difference of Gibbs free energy, specific heat, entropy between the two phases and the enthalpy released during crystallization have been determined. On the basis of experimental observations and theoretical calculations of thermodynamic properties, it has been found that Se 80 Te 10 In 10 is the most stable glass.

Optical properties of CdS sintered film

Abstract: Chemical method has been used to prepare cadmium sulphide by using cadmium, hydrochloric acid and H2S. The reflection spectra of covered and uncovered sintered films of CdS have been recorded by ‘Hitachi spectrophotometer’ over the wavelength range 300–700 nm. The energy band gaps of these films have been calculated from reflection spectra. It is found that the energy band gap of both films is same as 2.41 eV. It is indicated that energy band gap of these films does not change. This value of band gap is in good agreement with the value reported by other workers. The measurement of photocurrent has also been carried out using Keithley High Resistance meter/ Electrometer. This film shows the high photosensitivity and high photocurrent decay. Thus so obtained films are suitable for fabrication of photo detectors and solar cells.