Chaos Solitons & Fractals最新文献_第2页

Dynamic resistive switching of WOx-based memristor for associative learning activities, on-receptor, and reservoir computing 基于 WOx 的动态电阻开关记忆晶体管用于联想学习活动、感应器和水库计算

IF 5.3 1区数学

Chaos Solitons & Fractals Pub Date : 2025-03-29 DOI: 10.1016/j.chaos.2025.116381

Minseo Noh , Hyogeun Park , Sungjun Kim

{"title":"Dynamic resistive switching of WOx-based memristor for associative learning activities, on-receptor, and reservoir computing","authors":"Minseo Noh , Hyogeun Park , Sungjun Kim","doi":"10.1016/j.chaos.2025.116381","DOIUrl":"10.1016/j.chaos.2025.116381","url":null,"abstract":"<div><div>The rapid expansion of data driven by the fourth industrial revolution has revealed significant limitations in conventional computing architectures, particularly in their ability to efficiently process vast amounts of data. Neuromorphic computing, which draws inspiration from the brain's parallel processing capabilities and efficiency, presents a promising solution to overcome these limitations. This study introduces a TiN/WO<sub>x</sub>/Pt memory device capable of emulating both nociceptive and synaptic behaviors, highlighting its potential for neuromorphic computing applications. The device successfully replicates key nociceptive functions, including threshold response, allodynia, and hyperalgesia, through the migration of oxygen ions and vacancies within the interface. Furthermore, it demonstrates a range of synaptic plasticity behaviors, such as spike-number-dependent plasticity, spike-amplitude-dependent plasticity, spike-rate-dependent plasticity, and paired-pulse facilitation. In addition, the device achieves 4-bit multibit reservoir computing with high accuracy, showcasing its ability to perform adaptive learning and nonlinear data processing. These results underline the TiN/WO<sub>x</sub>/Pt memory device's promise for mimicking biological functions and its significant potential in the development of advanced neuromorphic computing systems.</div></div>","PeriodicalId":9764,"journal":{"name":"Chaos Solitons & Fractals","volume":"196 ","pages":"Article 116381"},"PeriodicalIF":5.3,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143734982","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhancing cooperation by balancing the contributions of early and late movers in spatial threshold public goods games

IF 5.3 1区数学

Chaos Solitons & Fractals Pub Date : 2025-03-29 DOI: 10.1016/j.chaos.2025.116324

Xu Liu , Chongkai Wang , Longqing Cui, Zhehang Xu, Yanni Liu, Xiao-Pu Han, Fanyuan Meng

{"title":"Enhancing cooperation by balancing the contributions of early and late movers in spatial threshold public goods games","authors":"Xu Liu , Chongkai Wang , Longqing Cui, Zhehang Xu, Yanni Liu, Xiao-Pu Han, Fanyuan Meng","doi":"10.1016/j.chaos.2025.116324","DOIUrl":"10.1016/j.chaos.2025.116324","url":null,"abstract":"<div><div>The challenge of public goods provision is amplified by the free-rider problem, particularly when late movers exploit the efforts of early contributors, disrupting efficiency and fairness. To tackle this issue, we propose an evolutionary public goods game model wherein the collective success relies on total contributions from both early and late movers reaching a critical threshold. Early movers decide independently based on anticipated payoffs, while late movers adaptively decide whether to cooperate or defect based on observed early contributions. A dynamic role transition mechanism, driven by payoff disparities, facilitates flexible shifts between early and late roles, encouraging adaptive decision-making. Our analysis indicates that late movers generally impede cooperation, especially under extreme parameter conditions. Sustainable cooperation emerges from a finely tuned parameter balance, ensuring adequate contributions from both groups. This framework extends evolutionary game theory by offering a nuanced perspective on cooperative strategies and practical recommendations for designing policy interventions to enhance collective outcomes.</div></div>","PeriodicalId":9764,"journal":{"name":"Chaos Solitons & Fractals","volume":"196 ","pages":"Article 116324"},"PeriodicalIF":5.3,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143724582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Abundant exact solutions of the fractional (3+1)-dimensional Yu–Toda–Sasa–Fukuyama (YTSF) Equation using the Bell Polynomial-based neural network method

IF 5.3 1区数学

Chaos Solitons & Fractals Pub Date : 2025-03-28 DOI: 10.1016/j.chaos.2025.116333

Yan Zhu , Kehua Li , Chuyu Huang , Yuanze Xu , Junjiang Zhong , Junjie Li

{"title":"Abundant exact solutions of the fractional (3+1)-dimensional Yu–Toda–Sasa–Fukuyama (YTSF) Equation using the Bell Polynomial-based neural network method","authors":"Yan Zhu , Kehua Li , Chuyu Huang , Yuanze Xu , Junjiang Zhong , Junjie Li","doi":"10.1016/j.chaos.2025.116333","DOIUrl":"10.1016/j.chaos.2025.116333","url":null,"abstract":"<div><div>In this paper, we propose a novel neural network method based on Bell polynomials to solve the fractional (3+1)-dimensional Yu–Toda–Sasa–Fukuyama (YTSF) equation, which describes wave phenomena in dual-layer liquids and elastic lattices. The bilinear form of this equation is derived using the bell polynomial approach and combined with neural network, which conquers the inconvenience of traditional Bilinear neural network method. Based on this new approach, various neural network architectures were constructed, including “4-2-1,” “4-3-1,” and “4-2-2-1,” incorporating different activation functions to derive exact solutions such as the breather solution, lump solution, the superposition of rogue and lump solutions, as well as the superposition of double periodic lump solutions. Then the dynamic properties of these solutions are illustrated through 3-D plots, density plots, and line plots. In addition, the chaotic behavior of these exact solutions was studied by applying the Duffing chaotic system. More over, N-soliton solutions could also be reconstructed in the proposed neural network framework which has not been previously exhibited and reported to our knowledge. It paves the possible way to seek for new types of interaction between N-soliton solutions and other type solutions in future work.The successful application of the proposed method to solving the fractional (3+1)-dimensional YTSF equation demonstrates its effectiveness and shows its application potential in fields such as fluid dynamics, marine engineering, and meteorological modeling.</div></div>","PeriodicalId":9764,"journal":{"name":"Chaos Solitons & Fractals","volume":"196 ","pages":"Article 116333"},"PeriodicalIF":5.3,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143724581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Harmony in heterogeneous traffic flow: A lattice hydrodynamic model with perception diversity and predictive effect coordinated by bilaterally controlled CAVs

IF 5.3 1区数学

Chaos Solitons & Fractals Pub Date : 2025-03-28 DOI: 10.1016/j.chaos.2025.116370

Shijiao Yuan, Qiang Chen

{"title":"Harmony in heterogeneous traffic flow: A lattice hydrodynamic model with perception diversity and predictive effect coordinated by bilaterally controlled CAVs","authors":"Shijiao Yuan, Qiang Chen","doi":"10.1016/j.chaos.2025.116370","DOIUrl":"10.1016/j.chaos.2025.116370","url":null,"abstract":"<div><div>With the rapid advancement of intelligent network communication and autonomous driving technologies, future highway traffic will be characterized by a heterogeneous mix of Human Driven Vehicles (HDVs), Autonomous Vehicles (AVs) at various automation levels, and Connected Autonomous Vehicles (CAVs). To evaluate the effectiveness of CAVs in mitigating traffic congestion, this paper proposes an extended lattice hydrodynamic model by integrating the concept of “flow control through particles” into mixed heterogeneous traffic flow scenarios. The model incorporates various vehicles' perceptions of upstream traffic conditions based on predictive capabilities. Furthermore, it investigates the impact of CAV Market Penetration Rate (MPR) on the system's critical stability, considering the sensitivity of diverse vehicle operators. Additionally, a car following model with CAV navigation is developed, considering bilateral control to analyze the string stability of the platoon. Through theoretical analysis and numerical simulations, the study demonstrates that the system's stability region expands significantly with increasing prediction horizon, sensing capability, sensitivity, and CAV penetration rate. Moreover, empirical data simulations demonstrate that implementing even a small fraction of the proposed CAV models can significantly reduce traffic congestion and improve overall roadway efficiency.</div></div>","PeriodicalId":9764,"journal":{"name":"Chaos Solitons & Fractals","volume":"196 ","pages":"Article 116370"},"PeriodicalIF":5.3,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143724457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Capability assessment and critical nodes identification in heterogeneous combat networks with multi-functional equipment

IF 5.3 1区数学

Chaos Solitons & Fractals Pub Date : 2025-03-28 DOI: 10.1016/j.chaos.2025.116375

Meng Liu , Qiang Feng , Xing Guo , Dongli Duan , Changchun Lv , Hongyan Dui , Zili Wang

{"title":"Capability assessment and critical nodes identification in heterogeneous combat networks with multi-functional equipment","authors":"Meng Liu , Qiang Feng , Xing Guo , Dongli Duan , Changchun Lv , Hongyan Dui , Zili Wang","doi":"10.1016/j.chaos.2025.116375","DOIUrl":"10.1016/j.chaos.2025.116375","url":null,"abstract":"<div><div>The aggregation of diverse equipment functionalities through networked forms represents a trend in the future warfare. Effective capability assessment and identifying critical nodes are fundamental aspects of related research. Advances in technologies have empowered individual equipment with multiple functionalities, leading to increasingly complex combat network structures. Current combat network capabilities assessment methods are exploratory and the coupling of operational logic with node characteristics further complicates critical node identification. This study proposes a novel Operation Chain (OC) capability measure to capture the process of its functional exertion and introduce a dimension for such a method. With the fusion higher-order nodes and ordinary nodes, a modeling approach is present for heterogeneous combat networks with multi-functional equipment (M-HCN), using a meta-path pruned breadth-first search for finding OCs. By evaluating the quantity and quality of OCs within a network, a capabilities assessment of M-HCNs is conducted. Based on the characteristics and capability contributions of OCs formed with the participation of a node, Operation Chain Centrality (OCC) is given to distinguish the importance of various nodes. We find the approach models multifunctional & conventional equipment in one heterogeneous network without introducing new OC types. The assessment method aligns with the characteristics of M-HCNs and provides an interpretable unit of measurement. Compared to 8 baseline methods, OCC exhibits significant advantages in terms of discriminability and effectiveness. The case also reveals that nodes with more functions are more likely to become critical and this observed pattern remains consistent across varying network scales.</div></div>","PeriodicalId":9764,"journal":{"name":"Chaos Solitons & Fractals","volume":"196 ","pages":"Article 116375"},"PeriodicalIF":5.3,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143724456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimal magnetic stimulation strategy for absence seizures: Targeted therapy for PY and E in a neural mass model

IF 5.3 1区数学

Chaos Solitons & Fractals Pub Date : 2025-03-28 DOI: 10.1016/j.chaos.2025.116322

Zhihui Wang, Yitong Ge, Lixia Duan

{"title":"Optimal magnetic stimulation strategy for absence seizures: Targeted therapy for PY and E in a neural mass model","authors":"Zhihui Wang, Yitong Ge, Lixia Duan","doi":"10.1016/j.chaos.2025.116322","DOIUrl":"10.1016/j.chaos.2025.116322","url":null,"abstract":"<div><div>Studies have shown that excitatory neurons play a crucial role in regulating seizures. We use an improved Wendling neural mass model to explore the effects of magnetic current stimulation on absence seizures. Firstly, we study the reciprocal excitatory projections between pyramidal neurons(PY) and excitatory interneurons (E), where the system appears in resting state, spike and wave discharge state (SWD) and simple oscillation state. Secondly, we apply magnetic stimulation to PY and E, independently. During PY-targeted magnetic stimulation, the gradual disappearance of the unstable region in the bifurcation diagram suggests that appropriate magnetic stimulation effectively suppressed seizures. During E-targeted magnetic stimulation, the backward shift of the Hopf bifurcation curve suggests that appropriate magnetic stimulation is capable of inducing resting state in the physiologic range of epilepsy. Finally, in order to find a stimulation strategy with the least stimulation intensity and the best effect, we target the magnetic stimulation in ratio to PY and E. By comparing the stimulation efficiency and the minimum magnetic stimulation intensity, we confirm that the optimal magnetic current ratio strategy for seizure suppression is <span><math><mi>PY: E = 1 : 9</mi></math></span>. This finding reveals the intrinsic nature of epileptic discharge states through bifurcation analysis. The study provides feasible suggestions for magnetic flow in the treatment of absence seizures.</div></div>","PeriodicalId":9764,"journal":{"name":"Chaos Solitons & Fractals","volume":"196 ","pages":"Article 116322"},"PeriodicalIF":5.3,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143715580","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tuning the Photonic Spin Hall Effect through vacuum-induced transparency in an atomic cavity 通过原子腔中的真空诱导透明度调谐光子自旋霍尔效应

IF 5.3 1区数学

Chaos Solitons & Fractals Pub Date : 2025-03-27 DOI: 10.1016/j.chaos.2025.116292

Muqaddar Abbas , Yunlong Wang , Feiran Wang , Hamid R. Hamedi , Pei Zhang

引用次数: 0

Bifurcation analysis, chaos control, and FAST approach for the complex dynamics of a discrete-time predator–prey system with a weak Allee effect

IF 5.3 1区数学

Chaos Solitons & Fractals Pub Date : 2025-03-27 DOI: 10.1016/j.chaos.2025.116317

Pinar Baydemir, Huseyin Merdan

{"title":"Bifurcation analysis, chaos control, and FAST approach for the complex dynamics of a discrete-time predator–prey system with a weak Allee effect","authors":"Pinar Baydemir, Huseyin Merdan","doi":"10.1016/j.chaos.2025.116317","DOIUrl":"10.1016/j.chaos.2025.116317","url":null,"abstract":"<div><div>In this paper, we analyze the complex dynamics of a discrete-time, Leslie-type predator–prey system that exhibits a weak Allee effect where the prey population has a mate-finding Allee effect. This discrete mathematical model has been obtained by applying the forward Euler scheme to its continuous-time counterpart. First, stability and bifurcation analyses are performed to explore the stability of positive equilibrium points and to identify critical points where dynamic behavioral transitions occur. Then, center manifold theory and normal form theory are used to classify bifurcations, including Flip bifurcation and Neimark–Sacker bifurcation, revealing the emergence of chaos and periodic orbits in the system by choosing integral step size as a bifurcation parameter. Specifically, numerical examples are presented to illustrate and support the theoretical results, thereby demonstrating the practical application of the theory. Next, we implement chaos control strategies, namely the feedback control method, to control chaotic dynamics. In addition, we apply the FAST method to improve the efficiency of our numerical simulations, allowing a more detailed exploration of the parameter space. Our results contribute to a better understanding of ecological interactions under the influence of the Allee effect and provide valuable insights for biodiversity management in predator–prey systems, especially for endangered populations.</div></div>","PeriodicalId":9764,"journal":{"name":"Chaos Solitons & Fractals","volume":"196 ","pages":"Article 116317"},"PeriodicalIF":5.3,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143715636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Active disturbance reduction on non-homogeneous T-S fuzzy semi-Markovian jump systems and its application to secure digital signal communication

IF 5.3 1区数学

Chaos Solitons & Fractals Pub Date : 2025-03-27 DOI: 10.1016/j.chaos.2025.116275

S. Mohanapriya , P. Muthukumar , E.A. Gopalakrishnan , Deepa Gupta

{"title":"Active disturbance reduction on non-homogeneous T-S fuzzy semi-Markovian jump systems and its application to secure digital signal communication","authors":"S. Mohanapriya , P. Muthukumar , E.A. Gopalakrishnan , Deepa Gupta","doi":"10.1016/j.chaos.2025.116275","DOIUrl":"10.1016/j.chaos.2025.116275","url":null,"abstract":"<div><div>The concerns of disturbance reduction and tracking controller in non-homogeneous Takagi–Sugeno fuzzy semi-Markovian jump systems (T-SFSMJSs) are explained in this extensive effort. By elucidating the effects produced due to disturbances and delay in control input, it delivers a detailed understanding of the significances of disturbances and input delay on system execution. To be more specific, the performance of accurate tracking and accurate disturbance diminution are ensured by means of a generalized modified repetitive control (GMRC) strategy and an artificial neural network (ANN)-based disturbance estimator integrated with Astrom modified Smith predictor (ASP) technique. Particularly, the numerical instances deliver a comprehensive demonstration of how the suggested control procedure works in several scenarios and exhibit its efficiency under a variety of circumstances. These results are further reinforced by comparative investigation, which narrates the performance of the proposed method with that of former methods such as improved-equivalent-input-disturbance (IEID), truncated predictive control (TPC) and disturbance observer based control (DOBC) design, which have the limits in the case of mismatched multiple disturbances. From an application viewpoint, a novel encryption and decryption technique is suggested and numerically shown for securely transmitting digital signals over unprotected channels by utilizing T-S fuzzy chaotic semi-Markovian jump systems. Further, the experimental results demonstrate the effectiveness of the proposed algorithm and quality metrics of the proposed encryption method are analyzed. The suggested encryption algorithm’s key size is twelve times larger than the conventional key size, according to the key space measure and secure against different attacks.</div></div>","PeriodicalId":9764,"journal":{"name":"Chaos Solitons & Fractals","volume":"196 ","pages":"Article 116275"},"PeriodicalIF":5.3,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143715582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Vortex modulation via four-wave mixing in superconducting artificial atoms

IF 5.3 1区数学

Chaos Solitons & Fractals Pub Date : 2025-03-26 DOI: 10.1016/j.chaos.2025.116293

Chong Wu , Hamid R. Hamedi , Chenyu Kong , Weibin Li , Zhiping Wang

引用次数: 0