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JournalISSN: 0019-5480

Indian Journal of Physics 

Springer Science+Business Media
About: Indian Journal of Physics is an academic journal published by Springer Science+Business Media. The journal publishes majorly in the area(s): Physics & Materials science. It has an ISSN identifier of 0019-5480. Over the lifetime, 3326 publications have been published receiving 21236 citations.


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Journal ArticleDOI
TL;DR: In this article, a mathematical model is derived to elucidate the dominant mechanism governing film formation, which leads to a relation between film thickness and film radius spreading with time, and the advantages and disadvantages of this process with applications are reviewed.
Abstract: A mathematical model is derived to elucidate the dominant mechanism governing film formation. It leads to a relation between film thickness and film radius spreading with time. Inclusion of evaporation and shear stress was made with extension to non-Newtonian fluid. The advantages and disadvantages of this process with applications are reviewed.

310 citations

Journal ArticleDOI
TL;DR: In this article, a modified Riemann-Liouville derivative and first integral method are applied for constructing exact solutions of nonlinear fractional generalized reaction duffing model and nonlinear diffusion reaction equation with quadratic and cubic nonlinearity.
Abstract: In this paper, fractional derivatives in the sense of modified Riemann-Liouville derivative and first integral method are applied for constructing exact solutions of nonlinear fractional generalized reaction duffing model and nonlinear fractional diffusion reaction equation with quadratic and cubic nonlinearity. Our approach provides first integrals in polynomial form with a high accuracy for two-dimensional plane autonomous systems. Exact soliton solutions are constructed through established first integrals.

202 citations

Journal ArticleDOI
TL;DR: In this paper, the authors have studied the two dimensional tangent hyperbolic fluid flow towards a stretching sheet with a magnetic field and modelled the governing equations for the proposed model and then simplified using boundary layer approach and similarity transformations.
Abstract: In the present article, we have studied the two dimensional tangent hyperbolic fluid flow towards a stretching sheet with a magnetic field. Governing equations for the proposed model are modelled and then simplified using boundary layer approach and similarity transformations. Simplified governing equations are then solved numerically with the help of fourth and fifth order Runge–Kutta–Fehlberg method. Physical features of the involved parameters are presented and discussed.

170 citations

Journal ArticleDOI
TL;DR: In this paper, the structural, elastic, electronic, magnetic and thermodynamic properties of Co2TaGa full-Heusler alloy were investigated using density functional theory-based full-potential linearized augmented plane waves method.
Abstract: The structural, elastic, electronic, magnetic and thermodynamic properties of Co2TaGa full-Heusler alloy are investigated using density functional theory-based full-potential linearized augmented plane waves method. Our results present Co2TaGa full-Heusler in CuHg2Ti-type structure FM phase that is mechanically and dynamically stable at pressure. The negative formation energy of Co2TaGa is −1.516 eV that can be synthesized experimentally. The electronic properties of 3d transition metal-based full-Heusler compound Co2TaGa are calculated within Perdew–Burke–Ernzerhof generalized gradient approximation. Co2TaGa is predicted to be half-metallic ferrimagnet with an indirect band gap and 100% spin polarization. The calculated total magnetic moment is 2 μB, which is mainly determined by Co partial moment, and total spin magnetic moment is in conformity with Slater–Pauling rule Mt that gives a simple function of valence electrons number, Zt, formulated as Mt = Zt − 18.

147 citations

Journal ArticleDOI
TL;DR: In this article, the characteristics of the UV illumination-assisted degradation of Malachite green (MG) on highly active nanostructured-anatase TiO2, bulk Polyaniline (PAni), PAni nanoparticles and PANi-TiO2 nanocomposites have been studied.
Abstract: The characteristics of the UV illumination-assisted degradation of Malachite green (MG) on highly active nanostructured-anatase TiO2, bulk Polyaniline (PAni), PAni nanoparticles and PAni-TiO2 nanocomposites have been studied. Dodecylbenzene sulphonic acid doped PAni-TiO2 nanocomposites were synthesized by a water-assisted self-assembly method. Samples were characterized using transmission electron microscopy, X-ray diffraction studies, Fourier Transform Infra red spectroscopy and photoluminescence studies. Photoluminescence intensity of TiO2 nanoparticles was found to decrease with the increase of PAni in the nanocomposite which can be attributed to the reduction of electron-hole pair recombination at the interface of PAni and TiO2 due to electron transfer from TiO2 to PAni. Exposure to UV light brought about the photocatalytic oxidation of MG in contact with bulk PAni, PAni and TiO2 nanoparticles, and PAni-TiO2 nanocomposites. The decrease in absorbance was measured, and its kinetics was analyzed using the Langmuir-Hinshelwood kinetic model. PAni-TiO2 nanocomposites exhibit higher photocatalytic activity than pure TiO2 nanoparticles, bulk PAni and PAni nanoparticles under the same degradation condition for MG. The enhanced photocatalytic activity of nanocomposites is attributed to the electron transfer from TiO2 to PAni resulting in enhancing the oxidative property of the TiO2 nanoparticles.

129 citations

Performance
Metrics
No. of papers from the Journal in previous years
YearPapers
2023261
2022344
2021550
2020235
2019180
2018178