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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
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Effect of the interaction between hyperons on the moment of inertia of proto neutron star PSR J0740+6620 Pramana (IF 2.8) Pub Date : 2023-12-12 Xian-Feng Zhao
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Universality in quantum measurements Pramana (IF 2.8) Pub Date : 2023-12-12 Avijit Lahiri
We briefly review a number of major features of the approach to quantum measurement theory based on environment-induced decoherence of the measuring apparatus, and summarise our observations in the form of a couple of general principles that, unlike the wave function collapse hypothesis, emerge as the ones consistent with the unitary Schrödinger evolution of wave functions. We conclude with a few observations
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Microscopic theory of novel pseudogap phenomena and Bose-liquid superconductivity and superfluidity in high- $$T_c$$ cuprates and other systems Pramana (IF 2.8) Pub Date : 2023-12-09 S Dzhumanov
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Exploring the impact of a moving sink in a reaction–diffusion system: exact dynamics for two simple potentials Pramana (IF 2.8) Pub Date : 2023-12-09 Chinmoy Samanta, Aniruddha Chakraborty
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Generalised Lie similarity transformations for the unsteady flow and heat transfer under the influence of internal heating and thermal radiation Pramana (IF 2.8) Pub Date : 2023-12-09 Shuguang Li, M Safdar, S Taj, M Bilal, S Ahmed, M Ijaz Khan, Maimona Rafiq, Sherzod Shukhratovich Abdullaev
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Heat and mass transfer on MHD flow of Jeffrey nanofluid based on Cu and TiO2 over an inclined plate and diffusion-thermo and radiation absorption effects Pramana (IF 2.8) Pub Date : 2023-12-09 Raghunath Kodi, Farhan Ali, M Khalid, Barno Sayfutdinovna Abdullaeva, Reem Altuijri, M Ijaz Khan
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Analysis of patterns in an additional food-provided predator–prey reaction diffusion model using amplitude equations Pramana (IF 2.8) Pub Date : 2023-12-08 Santu Ghorai, Omür Umut, Swarup Poria
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The effect of negative mass in gravitating systems Pramana (IF 2.8) Pub Date : 2023-12-08 Edward Bormashenko
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Modulating the optical behaviour of metallic vanadium dioxide by adjusting the number of Drude oscillators Pramana (IF 2.8) Pub Date : 2023-12-08 Abderrahim Ben Chaib, Mohammed Zouini
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Insight into the heat transfer across the dynamics of Burger fluid due to stretching and buoyancy forces when thermal radiation and heat source are significant Pramana (IF 2.8) Pub Date : 2023-11-27 Shuguang Li, Tasawar Abbas, Kamel Al-Khaled, Sami Ullah Khan, Ehsan Ul Haq, Sherzod Shukhratovich Abdullaev, Muhammad Ijaz Khan
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Trapping of agglomerated nanoparticles by the acoustic field: influence of particle diameter and density on the trap efficiency Pramana (IF 2.8) Pub Date : 2023-11-27 Satya P R KANDADA, C Balasubramanian
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Transverse effective charge, energy band structure and optical properties of nanostructured AlxIn1-xPySbzAs1-y-z alloy for the solar cells system Pramana (IF 2.8) Pub Date : 2023-11-27 Mohammed Alyami, O A Alfrnwani, Elkenany B Elkenany
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Energy content, centre of mass and Dirac spin of cylindrically rotating solution in the teleparallel gravity Pramana (IF 2.8) Pub Date : 2023-11-27 M Abdelgaber, M F Mourad, Ravi Panchal
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Coexistence of the breather and the rogue waves for a coupled nonlinear Schrödinger equation Pramana (IF 2.8) Pub Date : 2023-11-27 Ya-Hui Guo, Da-Wei Zuo
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Second-grade bioconvection flow of a nanofluid with slip convective boundary conditions Pramana (IF 2.8) Pub Date : 2023-11-27 Mlamuli Dhlamini, Kukhanya Zondo, Hiranmoy Mondal, Precious Sibanda, Sachin Shaw, Sandile S Motsa, Musawenkhosi P Mkhatshwa, Mangwiro Magodora
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Theoretical investigation of electromagnetohydrodynamic flow of a couple stress fluid through a circular microchannel Pramana (IF 2.8) Pub Date : 2023-11-21 Brijesh Kumar, Srinivas Jangili, J V Ramana Murthy
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Detecting hidden changes in the dynamics of noisy nonlinear time series by using the Jensen–Shannon divergence Pramana (IF 2.8) Pub Date : 2023-11-21 Kazimieras Pukenas
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Gravastars in $$f(R,\,\Sigma ,\,T)$$ strong-gravity and antigravity theories Pramana (IF 2.8) Pub Date : 2023-11-21 A T Shafeek, M A Bakry, G M Moatimid
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Influence of altered parasitic aspects on the device structure for efficient organic solar cells Pramana (IF 2.8) Pub Date : 2023-11-20 Dipankar Gogoi, Sagar Bhattarai, T D Das
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Schwarzian derivative in higher-order Riccati equations Pramana (IF 2.8) Pub Date : 2023-11-20 Benoy Talukdar, Supriya Chatterjee, Golam Ali Sekh
The Sturm–Liouville equation represents the linearised form of the first-order Riccati equation. This provides an evidence for the connection between Schwarzian derivative and this first-order nonlinear differential equation. Similar connection is not obvious for higher-order equations in the Riccati chain because the corresponding linear equations are of order greater than two. With special attention
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Magnetisation reversal in two-dimensional ensemble of nanoparticles with positional defects Pramana (IF 2.8) Pub Date : 2023-11-10 Manish Anand
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Convective non-conducting magnetic fluid flow and heat transfer due to the rotating cone in the presence of magnetic dipole Pramana (IF 2.8) Pub Date : 2023-11-06 Anupam Bhandari, K P S Parmar