Thanesar, India
Thanesar, India

Kurukshetra University was established on 11 January 1956 in Kurukshetra in Haryana, India, 160 km from Delhi. It is a member of Association of Commonwealth Universities. The university was the dream of the then Punjab governor, Sir Chandeshwar Prasad Narayan Singh, a Sanskrit scholar, who wanted to set up an institute to promote Indian culture and traditions. The Department of Sanskrit was the first and the only department in the university when it was inaugurated by India's first president, Dr. Rajendra Prasad. Its campus is spread over 470 acres . Wikipedia.

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News Article | February 24, 2017

PANIPAT INSTITUTE OF ENGINEERING AND TECHNOLOGY (PIET), the Best Engineering College of 2017 is located at 70 mile stone on Delhi-Panipat highway. It is approved by AICTE, Govt. of India and affiliated to Kurukshetra University, Kurukshetra.

Dubey N.,Kurukshetra University
Journal of Molecular Liquids | Year: 2013

The effect of organic additive, C8-OH and C9-OH (octan-1-ol and nonan-1-ol) on the micellar behavior of aqueous solution of cetyltrimethylammonium bromide, CTAB was examined by thermodynamic (density and speed of sound) measurements. The polar compounds form the additive-CTAB mixed micelles which cause micellar growth. The critical micelle concentration, cmc, and degree of counterion dissociation, α, of aqueous solution of CTAB containing different amounts of monohydric alcohols have been determined at various temperatures by means of electrical conductivity. Fluorescence method has also been used to obtain cmc values as well as the aggregation number, Nagg, of CTAB in the presence of studied alcohols. In general, the experimental results indicate that micelle formation is hindered by a rise in temperature. In addition, alcohols show an inhibitory effect on the formation of micelles of CTAB. The results are well supported by spectral studies viz. fluorescence and NMR. © 2013 Elsevier B.V. All rights reserved.

Sharma M.D.,Kurukshetra University
Geophysical Journal International | Year: 2012

Propagation of Rayleigh waves is studied in a porous medium, which is not fully saturated. The porous medium is assumed to be a continuum consisting of a solid skeletal with connected void space occupied by a mixture of two immiscible viscous fluids. This model also represents a case when liquid fills only a part of the pore space and gas bubbles span the remaining void space. In this isotropic medium, potential functions identify the existence of three dilatational waves coupled with a shear wave. For propagation of plane harmonic waves restricted to a plane, these potentials decay with depth from the plane boundary of the medium. Rayleigh wave in this dissipative medium is an inhomogeneous wave which decays with depth and ensures the vanishing of stresses at the plane boundary of the medium. The existence and propagation of such a wave is represented by a secular equation, which happens to be complex and irrational. This irrational equation is resolved into a polynomial form so as to find its exact roots and hence to analyse the existence and propagation of Rayleigh wave. The velocity and amplitude of Rayleigh wave are used further to calculate the averaged polarization of aggregate displacement in the medium. Existence of Rayleigh wave in a particular porous medium depends on the values of various parameters involved in secular equation. Hence, a numerical example is studied to find pertinent saturation levels for which Rayleigh waves exist in the considered numerical model of the porous medium. Variations in valid saturation range, velocity, quality factor and polarization of Rayleigh waves are studied with the changes in wave frequency, capillary pressure, liquid viscosity and frame anelasticity. © 2012 The Authors Geophysical Journal International © 2012 RAS.

Gautam M.S.,Kurukshetra University
Modern Physics Letters A | Year: 2015

This paper is mainly focused on the limitations of energy independent Woods-Saxon potential and the applicability of energy dependent Woods-Saxon potential (EDWSP) model in conjunction with one-dimensional Wong formula for description of the heavy-ion fusion reactions. The effects of neutron transfer channels and inelastic surface vibrations of colliding nuclei in the enhancement of sub-barrier fusion excitation function data, in the various heavy-ion fusion reactions, have been investigated within the framework of energy independent one-dimensional barrier penetration model, the EDWSP model and the coupled channel code CCFULL. In certain projectile-target combinations, the influences of multi-neutrons transfer between reactants are found to be dominating over the coupling to low lying surface vibrational states. Furthermore, the effects of these dominant degrees of freedom can be simulated by introducing the energy dependence in real part of nucleus-nucleus potential. © 2015 World Scientific Publishing Company.

In the present work, the fusion of symmetric and asymmetric projectile-target combinations are deeply analyzed within the framework of energy dependent Woods-Saxon potential model (EDWSP model) in conjunction with one dimensional Wong formula and the coupled channel code CCFULL. The neutron transfer channels and the inelastic surface excitations of collision partners are dominating mode of couplings and the coupling of relative motion of colliding nuclei to such relevant internal degrees of freedom produces a significant fusion enhancement at sub-barrier energies. It is quite interesting that the effects of dominant intrinsic degrees of freedom such as multi-phonon vibrational states, neutron transfer channels and proton transfer channels can be simulated by introducing the energy dependence in the nucleus-nucleus potential (EDWSP model). In the EDWSP model calculations, a wide range of diffuseness parameter ranging from a= 0.85fm to a= 0.97fm, which is much larger than a value ( a= 0.65fm) extracted from the elastic scattering data, is needed to reproduce sub-barrier fusion data. However, such diffuseness anomaly, which might be an artifact of some dynamical effects, has been resolved by trajectory fluctuation dissipation (TFD) model wherein the resulting nucleus-nucleus potential possesses normal diffuseness parameter. © 2014 Elsevier B.V.

Dubey N.,Kurukshetra University
Journal of Chemical and Engineering Data | Year: 2010

Densities, ρ, speeds of sound, u, viscosities, η, and specific conductivities, κ, of mixtures of 1-pentanol or 1-hexanol with the anionic surfactant sodium dodecyl sulfate (SDS) have been measured at molalities between (0.05 and 0.10) mol · kg-1 and temperatures of (298.15 and 308.15) K. The apparent molar volumes, Φν, partial molar volumes, Φ°ν, transfer volume, Φ°ν(tr), isentropic compressibility, κs, relative viscosity, ηrel, viscosity A- and B-coefficients, free energies per mole of solvent, Δμ10#, and per mole of solute, Δμ20#, and limiting molar conductivity, Λm0, were calculated to permit speculation of the interactions prevailing in the studied aqueous surfactant-alcohol systems. The results were interpreted from the point of view of alcohol-surfactant-water interactions in these systems. Further, 1H NMR chemical shift measurements in micelle solutions containing 1-pentanol have also been carried out. The results obtained are compared with the conclusions drawn from the thermodynamic measurements. © ?2010 American Chemical Society.

Dubey N.,Kurukshetra University
Fluid Phase Equilibria | Year: 2014

The behavior and properties of mixed surfactant systems are discussed in the context of experimental techniques. The aggregation behavior of tetradecyltrimethylammonium bromide (TTAB), hexadecyltrimethylammonium bromide (CTAB), and hexadecyltriphe-nylphosphonium bromide (HTPB) and their mixtures in aqueous medium was investigated using conductance, fluorescence and NMR techniques. The critical micelle concentration (cmc), counterion binding, thermodynamic parameters of micellization, aggregation number (Nagg) etc. have been quantitatively estimated. Results were analyzed using regular solution theory (RST) to obtain the composition of the mixed micelles and the interaction parameter, βm, to evaluate the type and strength of interactions of surfactants in the mixed micelle. Activity coefficients and excess free energy of mixing were also determined. 1H NMR studies suggested that when mixed with CTAB or TTAB, the bulky head group of HTPB induce steric hindrance. 1H NMR results suggest that CTAB+HTPB produced compact mixed micelles. © 2014 Elsevier B.V.

The focus of the present article is to address the effects of the role of a neutron transfer channel in the enhancement of sub-barrier fusion excitation function data of various heavy-ion systems by using an energy-dependent Woods-Saxon potential (EDWSP) model in conjunction with the one-dimensional Wong's formula and the coupled-channel model by using the code ccfull. The effects of coupling to neutron transfer channels are found to have dominance over the coupling to low-lying surface vibrational states, such as the 2+ and 3- vibrational states. Furthermore, the influence of inelastic surface excitations and the effects of six neutron transfer channels with positive ground state Q values are mocked up by the EDWSP model. © 2014 American Physical Society.

Sharma M.D.,Kurukshetra University
Geophysical Journal International | Year: 2010

Energy flux vector and related wavefield quantities are studied for the propagation of harmonic plane waves in an anisotropic viscoelastic porous medium saturated with viscous fluid. In this dissipative medium, Biot's theory is used to define the propagation of four attenuating waves through different complex-valued slowness vectors. The attenuating waves are considered to be propagating as general inhomogeneous waves. The inhomogeneity strength of an attenuating wave is defined by a non-dimensional parameter. A fixed value of this inhomogeneity parameter is used to calculate the complex slowness vector of any attenuated wave in the medium for an arbitrarily chosen propagation direction. The complex slowness vector is then used to calculate the velocity and direction of energy flux for each of the four waves in the medium. Dissipation of energy is explained in terms of quality factors of attenuation such that the contributions from pore-fluid viscosity and anelastic porous-frame are separated. Deviations of the ray (or group velocity) direction from the propagation direction, the attenuation direction and the propagation-attenuation plane are also calculated. A numerical example is studied to analyse the variations in the energy-flux characteristics with propagation direction and inhomogeneity parameter. © 2010 The Author Journal compilation © 2010 RAS.

This work deeply analyzed the relative importance of the neutron transfer channels and inelastic surface vibrations of colliding nuclei in the sub-barrier fusion enhancement of various heavy ion systems using an energy dependent Woods-Saxon potential (EDWSP) model in conjunction with a one-dimensional Wong formula and the coupled channel formulation using the code CCFULL. The multi-phonon vibrational states of colliding nuclei and the nucleon transfer channels are found to be dominant internal degrees of freedom. The coupling between the relative motion of reactants and these relevant channels produces anomalously large sub-barrier fusion enhancement over the expectations of the one-dimensional barrier penetration model. In some cases, the influence of neutron transfer dominates over the couplings to low lying surface vibrational states of collision partners. Furthermore, the effects of coupling to inelastic surface excitations and the impact of neutron transfer channels with positive ground state Q-values are imitated due to energy dependence in the Woods-Saxon potential. In the EDWSP model calculations, a wide range for the diffuseness parameter, which is much larger than the value extracted from the elastic scattering data, is needed to account for the observed fusion enhancement in the close vicinity of the Coulomb barrier. © 2015 The Royal Swedish Academy of Sciences.

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