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Fluid Maxwell’s equations in the language of geometric algebra Pramana (IF 2.8) Pub Date : 2024-04-17 R Parameswaran, Susan Mathew Panakkal, M J Vedan
A comparison of the vorticity field tensor with the electromagnetic tensor is done. An attempt is made to express the vorticity and its dual in the language of geometric algebra using bivectors. In the language of geometric algebra, all four fluid Maxwell’s equations are reduced to a single equation in two ways, i.e., using a bivector \(\textbf{F}\) and also its Hodge dual \(\mathbf {F^*}\), and these
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The optimal values of Greenwald density limit and plasma safety factor in inductive and non-inductive operation modes Pramana (IF 2.8) Pub Date : 2024-04-17 F Sharifi, S M Motevalli, F Fadaei
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Next-to-leading power corrections to event-shape variables Pramana (IF 2.8) Pub Date : 2024-04-15 Neelima Agarwal, Melissa van Beekveld, Eric Laenen, Shubham Mishra, Ayan Mukhopadhyay, Anurag Tripathi
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Physical properties and thermal stability of the GeTe2-x(SeSb)x (x = 0, 0.2, 0.4, 0.6) chalcogenide glasses Pramana (IF 2.8) Pub Date : 2024-04-15 Devesh Pati Tripathi, Surbhi Agarwal, D K Dwivedi, Pooja Lohia, Rajesh Kumar Yadav, M Khalid Hossain
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Broadcasting of non-locality Pramana (IF 2.8) Pub Date : 2024-04-09 Dhrumil Patel, Arup Roy, Indranil Chakrabarty, Nirman Ganguly
Bell non-locality and steering are archetypal characteristics of quantum mechanics that mark a significant departure from conventional classical notions. They basically refer to the presence of quantum correlations between separated systems which violate a non-local inequality, the violation otherwise is not possible if we restrict ourselves only to classical correlations. In view of the importance
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Higher-order stochastic optical new shock-like and super solitary structures for Schrödinger model Pramana (IF 2.8) Pub Date : 2024-04-09 Yousef F Alharbi, Mahmoud A E Abdelrahman, E K El-Shewy
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Influence of nuclear size on nuclear dynamics, peak mass production’s energy and onset of multifragmentation Pramana (IF 2.8) Pub Date : 2024-04-03 Sucheta, Sakshi Gautam
The effect of nuclear size on different observables in fragmentation reactions is investigated using the quantum molecular dynamics approach. The present study is carried out using \(^{36, 37}\)Mg projectiles on various target nuclei ranging from \(^{27}\)Al to \(^{80}\)Br over a wide range of incident energies. Our findings revealed a significant influence (\(\sim \)20\(\%\)) of nuclear size on the
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Thompson and Troian velocity slip flow of the Casson hybrid nanofluid past a Darcy–Forchheimer porous inclined surface with Ohmic heating, Dufour and Soret effects Pramana (IF 2.8) Pub Date : 2024-04-01
Abstract A model of magnetohydrodynamic (MHD) flow of non-Newtonian Casson hybrid nanofluid past a Darcy–Forchheimer porous inclined surface has been considered. Consequences of volumetric thermal and mass expansions along with Thompson and Troian velocity slip constraints on flow profiles have been investigated. Heat and mass transfer have been manipulated over heat absorption, Dufour and Soret effects
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Determining the structure of Hqt couplings at the LHC Pramana (IF 2.8) Pub Date : 2024-03-29 Saurabh D Rindani
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Phase-mixing of high-frequency electrostatic oscillations in multi-component dusty plasmas Pramana (IF 2.8) Pub Date : 2024-03-27
Abstract A theoretical investigation of the phase-mixing phenomenon of Langmuir oscillations (LOs) in a multi-component dusty plasma is presented. The plasma under study is a four-component plasma consisting of electrons, positrons, singly ionised positive ions and positive (or negative) polarity dust grains. The massive dust grains are assumed to form a fixed charge neutralising background, while
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Fractional-order neuronal maps: dynamics, control and stability analysis Pramana (IF 2.8) Pub Date : 2024-03-27 Trupti R Shrama, Prashant M Gade
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A super mKdV equation: bi-Hamiltonian structures and Darboux transformations Pramana (IF 2.8) Pub Date : 2024-03-27 Hanyu Zhou, Kai Tian, XiaoXia Yang
Under an appropriate Miura-type transformation, a super modified Korteweg–de Vries (mKdV) equation, introduced by Hu in 1997, is shown to be a modification of the generalised super Korteweg–de Vries (KdV) equation. By correspondingly changing bi-Hamiltonian formulations of the latter, bi-Hamiltonian structures are established for the super mKdV equation. Moreover, from an ansatz about gauge transformations
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Structural features of anisotropic spheres with quintessence in pure Lovelock gravity Pramana (IF 2.8) Pub Date : 2024-03-26 Allah Ditta, Xia Tiecheng, S K Maurya, G Mustafa
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Multi-wave complexiton, multi-wave, interaction-wave and the travelling wave solutions to the (2 + 1)-dimensional Boiti–Leon–Manna–Pempinelli equation for the incompressible fluid Pramana (IF 2.8) Pub Date : 2024-03-26
Abstract The current research aims to look into the exact solutions (ESs) of the (2 + 1)-dimensional Boiti–Leon–Manna–Pempinelli equation (BLMPE), which describes the irrotational-incompressible fluid. The Hirota bilinear equation of the problem under consideration is developed by applying the Cole–Hopf transform. Then, the ansatz function, combined with the symbolic computation, is utilised to extract
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Thermonuclear rate of the $$^{7}$$ Be( $$p,\gamma ) ^{8}$$ B reaction by EFT Pramana (IF 2.8) Pub Date : 2024-03-26 L Asgari, H Sadeghi
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Dynamic behaviour and semi-analytical solution of nonlinear fractional-order Kuramoto–Sivashinsky equation Pramana (IF 2.8) Pub Date : 2024-03-26
Abstract In this paper, we apply the fractional homotopy perturbation transform method (FHPTM) to deliver an effective semi-analytical technique for determining fractional-order Kuramoto–Sivashinsky equations. The project technique combines the Laplace transform with the Caputo–Fabrizio fractional derivative of order \(\alpha \) where \(\alpha \in (0, 1]\) . Fractional-order Kuramoto–Sivashinsky equation
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Investigation on the mass of open-charm dibaryons as hexaquarks Pramana (IF 2.8) Pub Date : 2024-03-26
Abstract Conventionally, it is claimed that hexaquarks are exotic particles, most of which have not yet been experimentally detected. This essay is fixated on the view to extend a simple phenomenological model based on the Gürsey–Radicati mass formula for hadrons, including charm baryons and to predict the mass of hexaquark states. To make our purpose conspicuous, we perform a numerical tuning of this
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Application of three analytical approaches to the model of ion sound and Langmuir waves Pramana (IF 2.8) Pub Date : 2024-03-26 Abdul Hamid Ganie, Abdul-Majid Wazwaz, Aly R Seadawy, Mohammad Safi Ullah, Harun-Or-Roshid, Humayra Dil Afroz, Rabeya Akter
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The capability of pure and modified boron carbide nanosheet as a nanocarrier for dacarbazine anticancer drug delivery: DFT study Pramana (IF 2.8) Pub Date : 2024-03-18 Chou-Yi Hsu, Sarah Alwan Malik Al-Yasiri, A H Shather, Abdullah Jalil, Ali Jihad Hemid Al-Athari, Zaid H Mahmoud, Salema K Hadrawi, Mustafa M Kadhim
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New exact solution forms and stability aspects to Drinfel’d–Sokolov–Wilson model by using extended Jacobi elliptic rational function approach Pramana (IF 2.8) Pub Date : 2024-03-18 Nİsa ÇelİK
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Stochastic resonance in strong Poisson white noise excited system and its application in multi-features identification Pramana (IF 2.8) Pub Date : 2024-03-18 Qiang Ma, Shuqian Cao, Tao Gong, Jianhua Yang
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A review on synthesis, challenges as well as future prospects of graphene quantum dot (GQD) Pramana (IF 2.8) Pub Date : 2024-03-18 Narinder Kumar, Reena Dhyani, B S Rawat, P S Rawat, Diptarka Roy, Devendra Singh
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Application of principal component analysis for streak images: quality improvement in LIBS experiments Pramana (IF 2.8) Pub Date : 2024-03-13 Dragana M Pavlovic, Dragutin Sevic, Bratislav P Marinkovic, Maja S Rabasovic
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Symmetry structures and conservation laws of four-dimensional non-reductive homogeneous spaces Pramana (IF 2.8) Pub Date : 2024-03-07 Y Aryanejad, M Padiz Foumani
We investigate variational, Lie and Killing symmetries of the Lagrangian of an essential class of four-dimensional (pseudo-)Riemannian manifolds, i.e., non-reductive homogeneous spaces. Moreover, a Lie algebra analysis is shown. With the help of a result of the Noether’s theorem, we have presented the expressions for conservation laws corresponding to all variational symmetries.
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Bursting oscillations in dry friction system under external excitation Pramana (IF 2.8) Pub Date : 2024-03-07
Abstract In this paper, a system containing switching manifolds is constructed based on a non-linear conveyor belt model by introducing a periodic external excitation term. When the frequency of the external excitation is much smaller than the intrinsic frequency of the system, a series of bursting phenomena can be observed. Using the Filippov convex method, bifurcation mechanisms on the non-smooth
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Impact of electromagnetic field on three-phase flow of dissipative and radiative Casson hybrid nanofluid with internal heat generation/absorption Pramana (IF 2.8) Pub Date : 2024-03-07 P V Ananth Subray, B N Hanumagowda, S V K Varma, Jasgurpreet Singh Chouhan, K M Yogeesha, J Madhu, R Naveen Kumar
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A mathematical analysis of the unsteady magnetohydrodynamic stagnation point flow of a nanofluid consisting of single-walled carbon nanotubes and human blood through a stretchable wall with slip effects Pramana (IF 2.8) Pub Date : 2024-02-29 K M Kanika, Smrati Tripathi, Monika Rani
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Joint remote state preparation of an arbitrary single-qutrit state in noisy environment Pramana (IF 2.8) Pub Date : 2024-02-27 Cong Jiang, YuZhen Wei, Min Jiang
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Vortex states in rotating Bose–Einstein condensates beyond the mean-field regime Pramana (IF 2.8) Pub Date : 2024-02-27 Budhaditya Chatterjee
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Wilsonian RG approach to non-trivial fixed-point potential for N–d scattering Pramana (IF 2.8) Pub Date : 2024-02-23
Abstract We investigated a non-trivial fixed-point potential originating from the neutron–deuteron contact interaction using a basic form known as the Skornyakov–Ter-Martyrosian (S–TM) equation. The Wilsonian renormalisation group (RG) equation was employed to derive a non-trivial fixed-point potential of the short-range interaction in either the presence or the absence of the three-body force. In
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The use of the SRIM code for calculating radiation damage induced by γ-rays Pramana (IF 2.8) Pub Date : 2024-02-23 M Hoseini, S Hamidi, A Mohammadi
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Two-dimensional dynamics of ion-acoustic waves in a magnetised electronegative plasma Pramana (IF 2.8) Pub Date : 2024-02-23 Stéphanie Ganyou, Chérif S Panguetna, Serge I Fewo, Conrad B Tabi, Timoléon C Kofané
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Unlocking the efficiency potential of tin-based perovskite solar cell Pramana (IF 2.8) Pub Date : 2024-02-17 Shivani Chauhan, Rachna Singh
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Non-local hyperdifferential momentum operators in quantum field theory free from tachyons: the case of neutral mesons Pramana (IF 2.8) Pub Date : 2024-02-17 Waranont Anukool, Rami Ahmad El-Nabulsi
An extended non-local field equations characterised by modified dispersion relations have been constructed based on non-local differential and hyperdifferential quantum operators. The dispersion relations obtained are found to be comparable to those obtained within the framework of unified theories and the covariant Kempf–Mangano algebra but free from tachyons. For the case of neutral meson, the upper
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Sub-picosecond pulses in single-mode optical fibres with the Kaup–Newell model via two innovative methods Pramana (IF 2.8) Pub Date : 2024-02-17 Kang-Jia Wang, Guo-Dong Wang, Feng Shi
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Numerical analysis of MHD tangent hyperbolic nanofluid flow over a stretching surface subject to heat source/sink Pramana (IF 2.8) Pub Date : 2024-02-17 Muhammad Waqas, Mariam Redn Almutiri, Budur Yagoob, Hijaz Ahmad, Muhammad Bilal
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Bäcklund transformation, Lax pair and dynamic behaviour of exact solutions for a ( $$3+1$$ )-dimensional nonlinear equation Pramana (IF 2.8) Pub Date : 2024-02-09 Zhimin Ma, Binji Wang, Xukun Liu, Yuanlin Liu
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Anisotropic stellar models with Tolman IV space–time in non-minimally coupled theory Pramana (IF 2.8) Pub Date : 2024-02-09 M Sharif, Tayyab Naseer
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Testing linearly coasting cosmology by strong lensing system and Pantheon $$+$$ data Pramana (IF 2.8) Pub Date : 2024-02-07 Savita Gahlaut
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Three-dimensional convective rotating hybrid nanofluid flow across the linear stretching $$/$$ shrinking sheet due to the impact of dissipative heat Pramana (IF 2.8) Pub Date : 2024-02-03
Abstract The present study investigates the three-dimensional convective rotating hybrid nanofluid flow over a linear stretching/shrinking sheet under the influence of dissipative heat. The behaviour of nanofluids, which are mixtures of Ag and MoS \(_4\) nanoparticles in water in this study, is considered in the occurrence of convective flow and the impact of rotation. The linear stretching \(/\) shrinking
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Soliton solutions to a negative flow in the Degasperis–Procesi hierarchy and its short-wave limit Pramana (IF 2.8) Pub Date : 2024-02-03 Rongcong Guo, Xiaoyan Zhen
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Analysis of porous magneto-thermoelastic solid cylinder via dual phase lag heat transfer model Pramana (IF 2.8) Pub Date : 2024-01-31
Abstract Mathematical models and numerical simulations are used to analyse and predict the behaviour of porous materials under coupled mechanical and thermal loading conditions in poroelastic thermoelastic studies. This field is crucial in understanding and designing systems involving porous media where mechanical and thermal factors are important. For this reason, this work aims to provide a theoretical
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A computational approach for the generalised Genesio–Tesi systems using a novel fractional operator Pramana (IF 2.8) Pub Date : 2024-01-30
Abstract This article presents the novel fractional-order Genesio–Tesi system, along with discussions of its boundedness, stability of the equilibrium points, Lyapunov stability, uniqueness of the solution and bifurcation. The efficient predictor–corrector approach is employed to quantitatively analyse the Genesio–Tesi system in fractional order. The findings enable conceptualisation and visualisation
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Traversable wormhole models in Finslerian geometry Pramana (IF 2.8) Pub Date : 2024-01-30 T Sanjay, S K Narasimhamurthy, Z Nekouee, H M Manjunatha
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Properties of glitching pulsars in the Skyrme–Hartree–Fock framework Pramana (IF 2.8) Pub Date : 2024-01-30
Abstract We address the crustal properties of neutron stars, such as crustal mass, crustal radius, crustal fraction of the moment of inertia and investigate the crustal and structural properties related to the glitching mechanism observed in pulsars. The mass, radius and crustal fraction of the moment of inertia in neutron stars have been determined using \(\beta \) -equilibrated neutron–proton–electron–muon
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The role of superthermal electrons and positrons on magnetised oscillatory shock waves Pramana (IF 2.8) Pub Date : 2024-01-28 S Y El-Monier, A S El-Helbawy, Moamen M Elsayed, M Saad
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Blob and hole dynamics in the rotating plasma column of a simple magnetised torus in open field line configuration Pramana (IF 2.8) Pub Date : 2024-01-28 P Alex, R Barni, H E Roman, C Riccardi
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Simulation study on the effect of hydro-active patches in passive micromixer geometry for fluid flow and mixing Pramana (IF 2.8) Pub Date : 2024-01-28
Abstract The study of steady and unsteady microflows plays an important role in micromixing applications. In this paper, Computational Fluid Dynamics (CFD) simulations using OpenFOAM have been carried out to investigate mixing efficiency and flow characteristics with rectangular geometry of three different wall conditions. The geometries of the microchannels were rectangular with the dimensions of
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Unsteady bioconvection microbial nanofluid flow in a revolving vertical cone with chemical reaction Pramana (IF 2.8) Pub Date : 2024-01-23 Shweta Mishra, Hiranmoy Mondal, Prabir Kumar Kundu
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Impact of nuclear structure of correlated pairs of fission fragments in mass distribution spectra of heavy-ion fusion–fission reactions Pramana (IF 2.8) Pub Date : 2024-01-20 Sham S Malik, Rajeev K Puri
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The undecidable charge gap and the oil drop experiment Pramana (IF 2.8) Pub Date : 2024-01-10
Abstract Decision problems in physics have been an active field of research for quite a few decades resulting in some interesting findings in recent years. However, such research investigations are based on a priori knowledge of theoretical computer science and the technical jargon of set theory. Here, I discuss a particular, but a significant, instance of how decision problems in physics can be realised
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Exact solutions to the $$(3 + 1)$$ -dimensional time-fractional KdV–Zakharov–Kuznetsov equation and modified KdV equation with variable coefficients Pramana (IF 2.8) Pub Date : 2024-01-05 Yating Hao, Ben Gao
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Modulational instability of ion-acoustic waves in multicomponent plasma using $$\kappa $$ -deformed Kaniadakis distribution Pramana (IF 2.8) Pub Date : 2024-01-02 Parveen Bala, Gurleen Kaur
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Exact diffusion–reaction dynamics for two different confined potentials in the presence of a perfect trap Pramana (IF 2.8) Pub Date : 2023-12-26 Chinmoy Samanta, Aniruddha Chakraborty
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Pseudorandom number generation derived from Josephson junction stimulated by Wien bridge oscillator embedded in the microcontroller Pramana (IF 2.8) Pub Date : 2023-12-26 Balakrishnan Sriram, Paul Didier Kamdem Kuate, Jules Metsebo, Isidore Komofor Ngongiah, Karthikeyan Rajagopal
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Primary radiation damage due to neutron interactions using inexplicit evaluated nuclear data: a case study in isotopes of tungsten using ENDF $$/$$ B-VIII.0 and TENDL-2019 Pramana (IF 2.8) Pub Date : 2023-12-26 Uttiyoarnab Saha
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The multiturn transverse injection scheme using short pulse nonlinear kicker into the 3.5 GeV synchrotron storage ring Pramana (IF 2.8) Pub Date : 2023-12-26
Abstract Considering the demand of users to achieve minimum emittance and thus the dynamic aperture shrink, it is consistently important to find an optimal scheme for injecting the beam with the maximum current to fill the acceptance. We present an on-axis injection scheme with designed elements of the injection system such as septum and pulsed sextupole magnet (PSM) in the 3.5 GeV storage ring. The
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Degeneracy affected stability in ionospheric plasma waves Pramana (IF 2.8) Pub Date : 2023-12-22
Abstract Ionospheric plasma introduces nonlinear perturbations in regular EM wave propagation which in turn affects the signal transmission in a highly nonlinear manner. Often the signals are distorted by a varied degree of nonlinearity. The wireless communication mechanism is affected by small perturbations which take gigantic rogue wave structures with the possibility of damaging sophisticated equipments
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Soliton solutions, lump solutions, mixed interactional solutions and their dynamical analysis of the $$(2+1)$$ -dimensional Calogero–Degasperis system Pramana (IF 2.8) Pub Date : 2023-12-22 Xiao-Qi Cui, Xiao-Yong Wen, Zhe Lin