International Journal of Nonlinear Sciences and Numerical Simulation最新文献_第4页

New soliton waves and modulation instability analysis for a metamaterials model via the integration schemes 基于积分方案的新孤子波和超材料模型的调制不稳定性分析

IF 1.5 4区工程技术

International Journal of Nonlinear Sciences and Numerical Simulation Pub Date : 2022-10-13 DOI: 10.1515/ijnsns-2021-0443

Yongyi Gu, J. Manafian, M. Mahmoud, Sukaina Tuama Ghafel, O. Ilhan

{"title":"New soliton waves and modulation instability analysis for a metamaterials model via the integration schemes","authors":"Yongyi Gu, J. Manafian, M. Mahmoud, Sukaina Tuama Ghafel, O. Ilhan","doi":"10.1515/ijnsns-2021-0443","DOIUrl":"https://doi.org/10.1515/ijnsns-2021-0443","url":null,"abstract":"Abstract In this paper, the exact analytical solutions to the generalized Schrödinger equation are investigated. The Schrodinger type equations bearing nonlinearity are the important models that flourished with the wide-ranging arena concerning plasma physics, nonlinear optics, fluid-flow, and the theory of deep-water waves, etc. In this exploration, the soliton and other traveling wave solutions in an appropriate form to the generalized nonlinear Schrodinger equation by means of the extended sinh-Gordon equation expansion method, tan(Γ(ϖ))-expansion method, and the improved cos(Γ(ϖ)) function method are obtained. The suggested model of the nonlinear Schrodinger equation is turned into a differential ordinary equation of a single variable through executing some operations. One soliton, periodic, and singular wave solutions to this important equation in physics are reached. The periodic solutions are expressed in terms of the rational functions. Soliton solutions are obtained from them as a particular case. The obtained solutions are figured out in the profiles of 2D, density, and 3D plots by assigning suitable values of the involved unknown constants. Modulation instability (MI) is employed to discuss the stability of got solutions. These various graphical appearances enable the researchers to understand the underlying mechanisms of intricate phenomena of the leading equation. The individual performances of the employed methods are praiseworthy which deserves further application to unravel any other nonlinear partial differential equations (NLPDEs) arising in various branches of sciences. The proposed methodologies for resolving NLPDEs have been designed to be effectual, unpretentious, expedient, and manageable.","PeriodicalId":50304,"journal":{"name":"International Journal of Nonlinear Sciences and Numerical Simulation","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48346054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

A study of a nonlinear Riemann–Liouville coupled integro-differential system with coupled nonlocal fractional integro-multipoint boundary conditions 具有非局部分数积分多点耦合边界条件的非线性Riemann-Liouville耦合积分-微分系统的研究

IF 1.5 4区工程技术

International Journal of Nonlinear Sciences and Numerical Simulation Pub Date : 2022-10-13 DOI: 10.1515/ijnsns-2021-0271

B. Ahmad, A. Alsaedi, Badra S. Alghamdi

引用次数: 0

Bifurcation analysis of a new stochastic traffic flow model 一种新的随机交通流模型的分岔分析

IF 1.5 4区工程技术

International Journal of Nonlinear Sciences and Numerical Simulation Pub Date : 2022-10-13 DOI: 10.1515/ijnsns-2021-0399

W. Ai, Ruihong Tian, Da-Wei Liu, Wenshan Duan

{"title":"Bifurcation analysis of a new stochastic traffic flow model","authors":"W. Ai, Ruihong Tian, Da-Wei Liu, Wenshan Duan","doi":"10.1515/ijnsns-2021-0399","DOIUrl":"https://doi.org/10.1515/ijnsns-2021-0399","url":null,"abstract":"Abstract The stochastic function describing the stochastic behavior of traffic flow in the process of acceleration or deceleration can better capture the stochastic characteristics of traffic flow. Based on this, we introduce the stochastic function into a high-order viscous continuous traffic flow model and propose a stochastic traffic flow model. Furthermore, we performed the bifurcation analysis of traffic flow system based on the model. Accordingly, the traffic flow problem is transformed into the stability analysis problem of the system, highlighting the unstable traffic characteristics such as congestion. The model can be used to study the nonlinear dynamic behavior of traffic flow. Based on this model, the existence of Hopf bifurcation and the saddle-node bifurcation is theoretically proved. And the type of the Hopf bifurcation is theoretically derived. The model can also be used to study the mutation behavior of system stability at bifurcation point. From the density space-time diagram of the system, we find that the system undergoes a stability mutation when it passes through the bifurcation point, which is consistent with the theoretical analysis results.","PeriodicalId":50304,"journal":{"name":"International Journal of Nonlinear Sciences and Numerical Simulation","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45221933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hilfer fractional stochastic evolution equations on infinite interval 无穷区间上的Hilfer分数阶随机演化方程

IF 1.5 4区工程技术

International Journal of Nonlinear Sciences and Numerical Simulation Pub Date : 2022-10-12 DOI: 10.1515/ijnsns-2022-0217

Min Yang, Yong Zhou

引用次数: 1

PS and GW optimization of variable sliding gains mode control to stabilize a wind energy conversion system under the real wind in Adrar, Algeria 阿尔及利亚Adrar实际风况下稳定风能转换系统的变滑动增益模式控制的PS和GW优化

IF 1.5 4区工程技术

International Journal of Nonlinear Sciences and Numerical Simulation Pub Date : 2022-10-11 DOI: 10.1515/ijnsns-2022-0237

F. Bekraoui, A. Harrouz, Khayra Roummani, I. Boussaid, Amina Bekraoui

引用次数: 4

An analysis on approximate controllability of Atangana–Baleanu fractional semilinear control systems Atangana–Baleanu分数阶半线性控制系统的近似可控性分析

IF 1.5 4区工程技术

International Journal of Nonlinear Sciences and Numerical Simulation Pub Date : 2022-10-11 DOI: 10.1515/ijnsns-2021-0371

W. Kavitha Williams, V. Vijayakumar, A. Shukla, K. Nisar

引用次数: 4

On the penetration efficiency of ceramic fragments through steel targets 陶瓷碎片对钢靶的穿透效率研究

IF 1.5 4区工程技术

International Journal of Nonlinear Sciences and Numerical Simulation Pub Date : 2022-10-11 DOI: 10.1515/ijnsns-2021-0430

Weizhan Wang, Peng Tian, Wenjie Lu, F. Meng, Zhigang Chen, T. Zhao

{"title":"On the penetration efficiency of ceramic fragments through steel targets","authors":"Weizhan Wang, Peng Tian, Wenjie Lu, F. Meng, Zhigang Chen, T. Zhao","doi":"10.1515/ijnsns-2021-0430","DOIUrl":"https://doi.org/10.1515/ijnsns-2021-0430","url":null,"abstract":"Abstract The penetration efficiency of novel ceramic fragments should be investigated, and their weapon damage effectiveness must be evaluated. In this study, the efficiency of ceramic fragments in penetrating steel targets were analyzed through ballistic impact tests and numerical simulations. The penetration patterns of these ceramic fragments through steel targets indicate significant perforation. It was deduced that the thicker the steel target, the greater the ability of ZrO2 ceramic fragments to penetrate. Results indicate that the thicker the steel target, the greater the ability of ZrO2 ceramic fragments to expand their perforation, while that of Al2O3 ceramic fragments is reduced as the thickness of the steel target is increased. In addition, the number of projectiles triggered by the perforation of the two ceramic fragments behind the targets decreases as the thickness of the steel target increases. Thus, the higher the impact velocity, the larger the perforation diameter of the ceramic fragments, and the larger the number of projectiles behind the target. Under the same impact velocity, the penetration ability of a ZrO2 ceramic fragment on steel targets was better than that of an Al2O3 ceramic fragment, and the number of projectiles behind the target was greater.","PeriodicalId":50304,"journal":{"name":"International Journal of Nonlinear Sciences and Numerical Simulation","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41784637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cryptanalysis of various images based on neural networks with leakage and time varying delays 基于泄漏和时变延迟的神经网络的各种图像密码分析

IF 1.5 4区工程技术

International Journal of Nonlinear Sciences and Numerical Simulation Pub Date : 2022-10-11 DOI: 10.1515/ijnsns-2021-0444

M. Manikandan, S. Ong

引用次数: 0

A generalized stochastic SIR epidemic model with vaccination rules 具有接种规则的广义随机SIR流行病模型

IF 1.5 4区工程技术

International Journal of Nonlinear Sciences and Numerical Simulation Pub Date : 2022-10-10 DOI: 10.1515/ijnsns-2021-0448

Zhi-hui Ma, Ting Qi, Xiaohua Li

引用次数: 0

Computational study of intravenous magnetic drug targeting using implanted magnetizable stent 植入磁化支架静脉磁性药物靶向的计算研究

IF 1.5 4区工程技术

International Journal of Nonlinear Sciences and Numerical Simulation Pub Date : 2022-10-10 DOI: 10.1515/ijnsns-2019-0200

A. Krafčík, M. Babincová, P. Babinec, I. Frollo

{"title":"Computational study of intravenous magnetic drug targeting using implanted magnetizable stent","authors":"A. Krafčík, M. Babincová, P. Babinec, I. Frollo","doi":"10.1515/ijnsns-2019-0200","DOIUrl":"https://doi.org/10.1515/ijnsns-2019-0200","url":null,"abstract":"Abstract Magnetic carriers for guiding, delivery, and capturing of drugs to desired place attract interest in the field of smart treatment of various pathological conditions. Presented paper, therefore, deals with one such application with the theoretical model of magnetic fluid flow through vessel bifurcation with one arm treated with ferromagnetic vascular stent placed in an external originally homogeneous magnetic field. This flow was described as laminar Newtonian incompressible continuum of the magnetic many-bead system, with Reynolds number ≈ 1 $approx 1$ , using magnetic force variant of the Nernst–Planck equation coupled with the Navier–Stokes equations, solved numerically by the finite element method (FEM). This approach allowed us to quantify capturing efficiency of magnetic beads in each arm of bifurcation vessels. Results show reduction of the number of magnetic beads entering as well as leaving the arm treated with stent in comparison with the untreated one. For stented bifurcation arm, the significant amount of beads are captured to its luminal surface, which may be used for drug delivery using magnetic carriers.","PeriodicalId":50304,"journal":{"name":"International Journal of Nonlinear Sciences and Numerical Simulation","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46023989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0