Year-2012: Recent submissions

Now showing items 41-60 of 103

Slurry erosion performance study of detonation gun-sprayed WC-10Co-4Cr coatings on CF8M steel under hydro-accelerated conditions

Bhandari, S.; Singh, H.; Kumar, H.; Rastogi, V. (2016-12-02)

In the current investigation, cermet coatings (WC-10Co-4Cr) were deposited on CF8M steel by detonation gun (D-gun) thermal spraying process. Subsequently, the slurry erosion behaviors of the coated and bare steels were ...
Parametric study of slurry-erosion of hydroturbine steels with and without detonation gun spray coatings using taguchi technique

Grewal, H.S.; Bhandari, S.; Singh, H. (2016-12-02)

WC-Co-Cr coatings were deposited on some hydroturbine 13Cr4Ni and 16Cr5Ni steels by the detonation-gun spray process. An in-depth characterization of the as-sprayed coating was done using X-ray diffraction (XRD) and ...
Unsteady peristaltic transport of Maxwell fluid through finite length tube: application to oesophageal swallowing

Pandey, S.K.; Tripathi, D. (2016-12-02)

This paper analytically investigates the unsteady peristaltic transport of the Maxwell fluid in a finite tube. The walls of the tube are subjected to the contraction waves that do not cross the stationary boundaries. The ...
Quadratic frequency modulated thermal wave imaging for non-destructive testing

Subbarao, G.V.; Mulaveesala, R. (2016-12-02)

Thermal non-destructive testing and evaluation of glass fibre reinforced plastic materials has gained more importance in aerospace industry due to low weight and high strength capabilities in severe environmental conditions. ...
A mathematical model for swallowing of food bolus through the oesophagus under the influence of heat transfer

Tripathi, D. (2016-12-02)

A mathematical model is constructed to study the influence of heat transfer in swallowing of food bolus (water) through the oesophagus. The food bolus is supposed to be viscous fluid and the geometry of wall surface of ...
Cavitation erosion studies on friction stir processed hydroturbine steel

Grewal, H.S.; Agrawal, A.; Singh, H.; Arora, H.S. (2016-12-02)

Cavitation erosion (CE) of various components in hydroturbines is a critical issue. Several attempts have been made in the past to counter CE through various surface modification techniques. In this study, a novel attempt ...
Uncertainties in nuclear transition matrix elements for neutrinoless ββ decay: the heavy Majorana neutrino mass mechanism

Rath, P.K.; Chandra, R.; Raina, P.K.; Chaturvedi, K.; Hirsch, J.G. (2016-12-02)

Employing four different parametrizations of the pairing plus the multipolar type of effective two-body interaction and three different parametrizations of the Jastrow type of short-range correlations, the uncertainties ...
A mathematical study on three layered oscillatory blood flow through stenosed arteries

Tripathi, D. (2016-12-02)

A mathematical model is constructed to examine the characteristics of three layered blood flow through the oscillatory cylindrical tube (stenosed arteries). The proposed model basically consists three layers of blood ...
Asymmetric synthesis of densely functionalized medium-ring carbocycles and lactones through modular assembly and ring-closing metathesis of sulfoximine-substituted trienes and dienynes

Lejkowski, M.; Banerjee, P.; Schüller, S.; Münch, A.; Runsink, J.; Vermeeren, C.; Gais, H-J. (2016-12-02)

An asymmetric synthesis of densely functionalized 7-11-membered carbocycles and 9-11-membered lactones has been developed. Its key steps are a modular assembly of sulfoximine-substituted C- and O-tethered trienes and ...
Characterization and in vitro corrosion investigations of thermal sprayed hydroxyapatite and hydroxyapatite-titania coatings on Ti alloy

Sarao, T.P.S.; Sidhu, H.S.; Singh, H. (2016-12-02)

In the current investigation, hydroxyapatite (HA) powder was mixed with titania (TiO2) in 50:50 wt pct for depositing composite coatings on a Ti-alloy substrate using a thermal-spray coating technique. The coatings were ...
Inclusion of short duration wind variations in economic load dispatch

Roy, S. (2016-12-02)

Randomness of wind speed around a short-duration-stable mean value is commonly referred to as short duration wind variation. This paper investigates the effect of substantial wind-based capacity inclusion on optimal load ...
Parametric study of friction stir processing of magnesium-based AE42 alloy

Arora, H.S.; Singh, H.; Dhindaw, B.K (2016-12-02)

Friction stir processing (FSP) is one of the severe plastic deformation processes which can significantly affect the material properties. The friction stir processed (FSPed) zone is extremely sensitive to the FSP parameters. ...
Peristaltic hemodynamic flow of couple-stress fluids through a porous medium with slip effect

Tripathi, D. (2016-12-02)

The present investigation deals with a theoretical study of the peristaltic hemodynamic flow of couple-stress fluids through a porous medium under the influence of wall slip condition. This study is motivated towards the ...
Slurry erosion behaviour of detonation gun spray Al 2O 3 and Al 2O 3-13TiO 2-coated CF8M steel under hydro accelerated conditions

Bhandari, S.; Singh, H.; Kansal, H.K.; Rastogi, V. (2016-12-02)

Slurry erosion performance of detonation gun (D-gun) spray ceramic coatings (Al2O3 and Al2O3–13TiO2) on CF8M steel has been investigated. Slurry collected from an actual hydro power plant was used as the abrasive media in ...
Chromomagnetism in nuclear matter

Ranjan, A.; Raina, P.K. (2016-12-02)

Quarks are color charged particles. Due to their motion there is a strong possibility of generation of color magnetic field. It is shown that however hadrons are color singlet particles they may have non-zero color magnetic ...
Some observations on microstructural changes in a Mg-based AE42 alloy subjected to friction stir processing

Arora, H.S.; Singh, H.; Dhindaw, B.K. (2016-12-02)

The main aim of the current study is the analysis of friction stir processing (FSP) of Mg-based alloys as a possible tool for nanocomposites production. The study reports microstructural changes taking place in a Mg-based ...
A numerical study of oscillating peristaltic flow of generalized maxwell viscoelastic fluids through a porous medium

Tripathi, D.; Bég, O.A. (2016-12-02)

This article presents a numerical study on oscillating peristaltic flow of generalized Maxwell fluids through a porous medium. A sinusoidal model is employed for the oscillating flow regime. A modified Darcy-Brinkman ...
Microstructure and compression behavior of chip consolidated magnesium

Anilchandra, A.R.; Basu, R.; Samajdar, I.; Surappa, M.K. (2016-12-02)

Chips produced by turning a commercial purity magnesium billet were cold compacted and then hot extruded at four different temperatures: 250, 300, 350, and 400 °C. Cast billets, of identical composition, were also extruded ...
Synthesis of zeolite Beta, MFI, and MTW using imidazole, piperidine, and pyridine based quaternary ammonium salts as structure directing agents

Kore, R.K.; Srivastava, R. (2016-12-02)

The synthesis of zeolites is investigated using a variety of quaternary ammonium salts of imidazole, piperidine, and pyridine based structure directing agents. The materials were characterized by a complementary combination ...
Buckling analysis of thin rectangular plates with cutouts subjected to partial edge compression using FEM

Singh, S.; Kulkarni, K.; Pandey, R.; Singh, H. (2016-12-02)

Purpose: The purpose of this paper is to present elastic buckling behaviour of simply supported and clamped thin rectangular isotropic plates having central circular cutouts subjected to uniaxial partial edge compression. ...

Now showing items 41-60 of 103

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