Pramana最新文献 - Book学术

Stability study of GEM chamber using (^{55})Fe X-ray source 利用(^{55}) Fe x射线源研究GEM腔室的稳定性

IF 2.1 4区物理与天体物理

Pramana Pub Date : 2026-05-07 DOI: 10.1007/s12043-025-03107-y

S Mandal, S Gope, S Das, S Biswas

引用次数: 0

Experimental optical wavefront manipulation using restructured DMD devices 重构DMD器件的实验光波前处理

IF 2.1 4区物理与天体物理

Pramana Pub Date : 2026-05-07 DOI: 10.1007/s12043-025-03103-2

T Gadha, Abhijith C Preej, H Adithyan, K Vaishnav Raj, Jerin Thomas, Abhishek Rhisheekesan, Dennis Thomas, A V Pradeep, Jijo Pulickiyil Ulahannan, Sajeev Damodarakurup

引用次数: 0

Uniform alloying of aluminium with boron 铝与硼的均匀合金化

IF 2.1 4区物理与天体物理

Pramana Pub Date : 2026-05-06 DOI: 10.1007/s12043-025-03105-0

G N Churilov, G A Glushenko, A M Zhyzhaev, N S Nikolaev, V I Elesina, N G Vnukova, A Tokmin, V Lopatin, M Kastyuk, A N Loktev

{"title":"Uniform alloying of aluminium with boron","authors":"G N Churilov, G A Glushenko, A M Zhyzhaev, N S Nikolaev, V I Elesina, N G Vnukova, A Tokmin, V Lopatin, M Kastyuk, A N Loktev","doi":"10.1007/s12043-025-03105-0","DOIUrl":"10.1007/s12043-025-03105-0","url":null,"abstract":"<div><p>In this research, a novel technology for producing Al–B alloys by treating aluminium ingots with boron processed in a low-frequency arc discharge plasma (66 kHz) is described. Argon was employed as both the plasma-forming and transport gas. Fullerenes were used to reduce the aluminium oxide film that forms on the surface of the ingots. The study presents data on the morphology, microstructure and distribution of boron particles within the aluminium alloy. Results from X-ray fluorescence analysis indicate that the boron content in aluminium is 7.8 (± 2.5) wt%. Boron is uniformly distributed throughout the volume of the aluminium ingot, as confirmed by scanning electron microscopy images. It was demonstrated that treating micron-sized boron particles with arc discharge plasma significantly reduces their particle size while maintaining their elemental composition. Microhardness and surface hardness of the produced Al-B ingots were investigated using indentation methods. It was found that an increase in boron content within the sample leads to a decrease in hardness. This study demonstrates that the proposed technology enables the production of Al-B alloy with a uniform distribution of boron throughout the aluminium volume.</p></div>","PeriodicalId":743,"journal":{"name":"Pramana","volume":"100 2","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Lie symmetries and invariant solutions of the ((2+1))-mKdVKP equation （(2+1)）-mKdVKP方程的李对称性和不变解

IF 2.1 4区物理与天体物理

Pramana Pub Date : 2026-05-06 DOI: 10.1007/s12043-025-03111-2

Ravi Shankar Verma

引用次数: 0

On the reflexive edge irregularity strength in barycentric subdivision of circulant networks 循环网络重心细分中自反边不规则性强度的研究

IF 2.1 4区物理与天体物理

Pramana Pub Date : 2026-05-04 DOI: 10.1007/s12043-025-03076-2

Tanveer Iqbal, Shajar Abbas, Nashwan Adnan Othman, Muhammad Zeeshan Shah, Hammad Saleh M Alotaibi, Mamurakhon Toshpulatova, Hakim AL Garalleh, Ibrahim Mahariq

引用次数: 0

Analytical and dynamical investigation of a modified equal-width equation: diverse W-M shaped solitary wave solutions, bifurcation analysis and chaotic dynamics 修正等宽方程的分析与动力学研究：不同W-M形孤立波解、分岔分析与混沌动力学

IF 2.1 4区物理与天体物理

Pramana Pub Date : 2026-05-04 DOI: 10.1007/s12043-025-03087-z

Sonia Akram, Mati ur Rahman, Laila A AL-Essa

{"title":"Analytical and dynamical investigation of a modified equal-width equation: diverse W-M shaped solitary wave solutions, bifurcation analysis and chaotic dynamics","authors":"Sonia Akram, Mati ur Rahman, Laila A AL-Essa","doi":"10.1007/s12043-025-03087-z","DOIUrl":"10.1007/s12043-025-03087-z","url":null,"abstract":"<p>This study focusses on the in-depth analysis of a modified equal-width (MEW) equation, which serves as a pivotal mathematical model for characterising wave transmission in nonlinear media affected by dispersive processes. The MEW equation captures the significant balance between dispersion and nonlinearity, making it highly relevant for simulating a variety of physical phenomena in optical fibres, plasma physics and fluid dynamics. To obtain exact analytical solutions, we utilise two effective and reliable techniques: the extended modified tanh-function method (eMETFM) and the extended Sardar sub-equation method (eSSEM). By using these methods, we successfully extract a wide range of explicit soliton solutions, including dark, bright, periodic, singular, W-shaped, M-shaped, and composite wave patterns. These solutions not only validate the suitability of the selected techniques but also reveal intricate solitary wave behaviours pertinent to nonlinear wave propagation. Beyond investigating soliton solutions, we also conduct a qualitative analysis of the perturbed system by examining its bifurcation structure. This analysis demonstrates crucial insights into the transition dynamics of the model under changing system parameters. To exhibit the onset and nature of chaotic behaviour, we establish a suite of advanced chaos detection tools, including power spectrum analysis, return map analysis, multistability analysis, bifurcation diagrams, strange attractor plots and Lyapunov exponent evaluation. These tools enable the detailed identification of periodic, quasi-periodic and chaotic regimes within the system, thereby enhancing our understanding of its nonlinear dynamics. The obtained results significantly contribute to the theoretical simulation of wave phenomena in nonlinear dispersive media, paving the way for future advancements in soliton theory and chaos control in engineering systems and applied physics.</p>","PeriodicalId":743,"journal":{"name":"Pramana","volume":"100 2","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A study on fractional cancer model using neural network scheme based on PINN–ASBO 基于PINN-ASBO的神经网络分式肿瘤模型研究

IF 2.1 4区物理与天体物理

Pramana Pub Date : 2026-05-02 DOI: 10.1007/s12043-025-03095-z

Chumki Banerjee, Sunil Kumar, Shaher Momani

{"title":"A study on fractional cancer model using neural network scheme based on PINN–ASBO","authors":"Chumki Banerjee, Sunil Kumar, Shaher Momani","doi":"10.1007/s12043-025-03095-z","DOIUrl":"10.1007/s12043-025-03095-z","url":null,"abstract":"<div><p>A tumour is a mass or lump of tissue that forms when abnormal cells aggregate, posing a serious and harmful health risk. In this study, we develop a fractional-order cancer immune dynamical model to compare tumour cells and effector cells. Our primary objective is to introduce a neural network-based method for solving the fractional-order cancer model. We apply the average and subtraction-based optimisation (ASBO) method to solve the model. ASBO is a three-step optimisation method which gives us accurate results. We analyse it using Levenberg–Marquardt neural networks (LMNNs). The robustness and versatility of the ASBO algorithm enable it to converge rapidly to the ideal values. We examine the interactions between tumour cells and immune cells, thereby simulating a real-world medical research problem that aids model construction. Using the Jacobian matrix, we establish the model’s stability and prove ULAM’s stability. We solve the problem with a neural network containing 20 neurons. The LMNN approach applies supervised learning, where we use <span>(80%)</span> of the data for training, <span>(15%)</span> for validation and <span>(5%)</span> for testing. We assess the efficacy and accuracy of LMNNs through regression plots, correlation analysis, histogram curves and function tests. We also employ the Adams–Bashforth–Moulton (ABM) predictor–corrector method to compare with our solutions. We generate all graphical results in MATLAB. The findings of this investigation will support biologists in the treatment of cancer.</p></div>","PeriodicalId":743,"journal":{"name":"Pramana","volume":"100 2","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147796461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Exploring Wronskian, soliton, lump and lump-multi-kink solutions of a ((3 + 1))-dimensional Boussinesq type equation uisng Hirota bilinear and Riccati methods 利用Hirota双线性和Riccati方法探索（(3 + 1)）维Boussinesq型方程的朗斯基解、孤子解、块解和块多结解

IF 2.1 4区物理与天体物理

Pramana Pub Date : 2026-05-02 DOI: 10.1007/s12043-026-03117-4

Ali Althobaiti, Sandeep Malik, Faisal Alsharif, Muhammad Amin S. Murad, Uttam Kumar Mandal

{"title":"Exploring Wronskian, soliton, lump and lump-multi-kink solutions of a ((3 + 1))-dimensional Boussinesq type equation uisng Hirota bilinear and Riccati methods","authors":"Ali Althobaiti, Sandeep Malik, Faisal Alsharif, Muhammad Amin S. Murad, Uttam Kumar Mandal","doi":"10.1007/s12043-026-03117-4","DOIUrl":"10.1007/s12043-026-03117-4","url":null,"abstract":"<div><p>This article investigates a <span>((3+1))</span>-dimensional Boussinesq-type equation (BTE) that models the propagation of small-amplitude dispersive waves in shallow water. The equation is of great physical significance due to its relevance in diverse phenomena such as ocean wave dynamics, tsunami propagation, and coastal harbor behavior. By establishing the intrinsic relationship between the Bell polynomials and the Hirota <i>D</i>-operator, we construct the Hirota bilinear form of the equation in a systematic manner. Based on this bilinear framework, we derive and graphically illustrate various nonlinear wave structures, including one-, two-, and three-kink soliton solutions. Furthermore, a lump solution is obtained through a quadratic test function, and its strong localization characteristics are demonstrated through detailed graphical visualization. Two distinct families of lump-multi-kink interaction solutions are then derived by employing quadratic–exponential and quadratic–hyperbolic cosine test functions, respectively, revealing rich and complex wave interaction dynamics. Furthermore, the application of the Plücker relation leads to the Wronskian condition, demonstrating that the <i>N</i>-soliton solutions of the model can be represented through Wronskian determinants. Finally, by invoking the Riccati equation approach, we derive several new classes of soliton solutions expressed in hyperbolic, trigonometric, and rational function forms, enriching the overall solution structure of the model.\u0000</p></div>","PeriodicalId":743,"journal":{"name":"Pramana","volume":"100 2","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147796528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Exploring soliton dynamics in Zakharov equations: Analytical approach and LM-ANN-driven convergence of solitary waves 探索Zakharov方程中的孤子动力学：解析方法和lm - ann驱动的孤子波收敛

IF 2.1 4区物理与天体物理

Pramana Pub Date : 2026-04-29 DOI: 10.1007/s12043-026-03118-3

Ghulam Hussain Tipu, Fengping Yao, Muhammad Asif

{"title":"Exploring soliton dynamics in Zakharov equations: Analytical approach and LM-ANN-driven convergence of solitary waves","authors":"Ghulam Hussain Tipu, Fengping Yao, Muhammad Asif","doi":"10.1007/s12043-026-03118-3","DOIUrl":"10.1007/s12043-026-03118-3","url":null,"abstract":"<div><p>This study aims to derive soliton solutions for the Zakharov equations, a versatile model that generalizes several significant phenomena in science and engineering. The equations governing laser-plasma interactions are formulated, resulting in a system that accommodates complex soliton structures. First, the system is reformulated into nonlinear ordinary differential equations using a traveling wave transformation. Exact analytical solutions are obtained using the Kumar–Malik (KM) method, yielding multiple classes of soliton solutions expressed in terms of hyperbolic, Jacobi elliptic, trigonometric, and exponential functions, subject to appropriate parameter constraints. These solutions enable the construction of a wide variety of soliton waveforms, including periodic, dark, bright, and W-shaped soliton waves. Secondly, to assess the stability and accuracy of these solutions, the Levenberg–Marquardt artificial neural network (LM-ANN) approach is employed. This method demonstrates high reliability in approximating the analytical profiles, with convergence and precision confirmed through fitness and regression analyses. Furthermore, the study includes extensive 3D, 2D, and density plots of the obtained solutions to facilitate a deeper understanding of the soliton dynamics. This research advances the study of soliton dynamics in nonlinear systems and introduces a novel integration of neural network methodologies with classical soliton theory, with potential applications in optical communication, ultrafast photonics, and nonlinear signal processing.</p></div>","PeriodicalId":743,"journal":{"name":"Pramana","volume":"100 2","pages":""},"PeriodicalIF":2.1,"publicationDate":"2026-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147797076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysis of the breakup reaction 9Be(28P,27Si)X at 65 MeV/n beam energy 65 MeV/n束流能量下9Be(28P,27Si)X破裂反应分析

IF 2.1 4区物理与天体物理

Pramana Pub Date : 2026-04-22 DOI: 10.1007/s12043-025-03104-1

Sarla Devi, Ravinder Kumar

引用次数: 0