Physical review. E最新文献_第8页

Unifying fluidization and defluidization of granular columns. 统一颗粒柱的流化和脱流化。

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2025-04-01 DOI: 10.1103/PhysRevE.111.045421

L Chupin, O Roche, S van den Wildenberg

引用次数: 0

Experimental verification of one-dimensional models of thermoelectric generators. 热电发电机一维模型的实验验证。

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2025-04-01 DOI: 10.1103/PhysRevE.111.045506

B Chen, Y D Wu, W G Ma, Z Y Guo

{"title":"Experimental verification of one-dimensional models of thermoelectric generators.","authors":"B Chen, Y D Wu, W G Ma, Z Y Guo","doi":"10.1103/PhysRevE.111.045506","DOIUrl":"https://doi.org/10.1103/PhysRevE.111.045506","url":null,"abstract":"In thermoelectric power generation circuits, one-dimensional models are commonly applied to analyze the energy conversion mechanism and calculate the relationship between various parameters. The two main conclusions derived from the one-dimensional models are as follows: (1) The maximum output power of the loop is achieved when the load is equal to the internal resistance of the thermoelectric element. (2) The source of output power is the Peltier heat flux. Since it is generally believed that the thermoelectric conversion theory is relatively mature, the current research work mainly focuses on finding high-performance thermoelectric materials to improve the thermoelectric conversion efficiency, while the experimental verification of thermoelectric conversion theory is less. In this paper, the two main conclusions in the one-dimensional models are verified by the thermal power generation loop composed of Bi_{2}Te_{3} and copper wires. Experiments show that the criterion for the maximum output power in the first conclusion should be modified to be that the load resistance is equal to the sum of the internal resistance of the thermoelectric component in the circuit, the resistance at the junction between the component and the wire, as well as the resistance of the wire itself. Additionally, we also discussed whether the Peltier heat serves as the source of the output power. Therefore, the one-dimensional models of the existing thermoelectric power generation circuit merit reconsideration.","PeriodicalId":20085,"journal":{"name":"Physical review. E","volume":"111 4-2","pages":"045506"},"PeriodicalIF":2.4,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144136332","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Interplay of turbulent transport and Reynolds stress in drift-wave turbulence. 漂波湍流中湍流输运与雷诺应力的相互作用。

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2025-04-01 DOI: 10.1103/PhysRevE.111.045207

R Sarkis, N Dumerat, B Schmid, G E M Tovar, M Ramisch

引用次数: 0

Generative modeling through internal high-dimensional chaotic activity. 通过内部高维混沌活动生成建模。

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2025-04-01 DOI: 10.1103/PhysRevE.111.045304

Samantha J Fournier, Pierfrancesco Urbani

引用次数: 0

Reconstructing simplicial complexes from evolutionary games. 从进化博弈中重构简单复合体。

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2025-04-01 DOI: 10.1103/PhysRevE.111.044304

Yin-Jie Ma, Zhi-Qiang Jiang, Fanshu Fang, Charo I Del Genio, Stefano Boccaletti

引用次数: 0

Self-propelled motion of induced-charge electrophoretic Janus particles in viscoelastic fluids. 粘弹性流体中诱导电荷电泳Janus粒子的自推进运动。

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2025-04-01 DOI: 10.1103/PhysRevE.111.045409

Keita Saito, Ryunosuke Kawano, Chisato Sadamatsu, Yasutaka Iwashita, Yasuyuki Kimura

{"title":"Self-propelled motion of induced-charge electrophoretic Janus particles in viscoelastic fluids.","authors":"Keita Saito, Ryunosuke Kawano, Chisato Sadamatsu, Yasutaka Iwashita, Yasuyuki Kimura","doi":"10.1103/PhysRevE.111.045409","DOIUrl":"https://doi.org/10.1103/PhysRevE.111.045409","url":null,"abstract":"Swimming micro-objects exist in viscoelastic fluids. Elucidating the effect of viscoelasticity on the motion of these objects is important for understanding their behavior. Since the mechanical response of viscoelastic fluids depends on the temporal deformation rate exerted by a moving object, it is necessary to control their speed over a wide range to examine the effect of viscoelasticity. In this study, we examined the motion of Janus particles self-propelled by induced charge electrophoresis over a wide range of speeds in semidilute polymer solutions. In our system, the motion of Janus particles changed from active Brownian motion to stationary rotation as the speed increased. The torque for stationary rotation originates from the difference between the direction of self-propulsion and that of the time-delayed restoring force from the polymer solution, which has been reported in another self-propelled particle system. The switch from active Brownian motion to stationary rotation at different polymer concentrations can be explained by the Weisenberg number, which is defined as the ratio of the relaxation time of the polymer network to the travel time of the Janus particle to its size. The results of this study will lead to a better understanding of the motion of self-propelled micro-objects in viscoelastic fluids.","PeriodicalId":20085,"journal":{"name":"Physical review. E","volume":"111 4-2","pages":"045409"},"PeriodicalIF":2.4,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144136554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Repulsive thermal van der Waals interaction in multispecies asymmetric electrolytes driven by external electric fields. 外电场驱动下多态不对称电解质中的排斥热范德华相互作用。

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2025-04-01 DOI: 10.1103/PhysRevE.111.044108

Guangle Du, David S Dean, Bing Miao, Rudolf Podgornik

引用次数: 0

Escaping dynamics of relativistic protons in the Earth's magnetosphere. 地球磁层中相对论性质子的逃逸动力学。

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2025-04-01 DOI: 10.1103/PhysRevE.111.044216

Álvaro Meseguer, Juan C Vallejo, Jesús M Seoane, Francisco Marqués, Miguel A F Sanjuán

{"title":"Escaping dynamics of relativistic protons in the Earth's magnetosphere.","authors":"Álvaro Meseguer, Juan C Vallejo, Jesús M Seoane, Francisco Marqués, Miguel A F Sanjuán","doi":"10.1103/PhysRevE.111.044216","DOIUrl":"https://doi.org/10.1103/PhysRevE.111.044216","url":null,"abstract":"In this work, we study the motion of protons under the influence of the Earth's magnetic field. We investigate the dynamics and topology of invariant spatial regions in two magnetic field models, namely, the dipolar and Luhmann tail configurations. In both cases, we analyze the motion of the protons in the relativistic regime, with kinetic energy intervals in the range 10<E<100MeV. Specifically, we examine situations in which the protons undergo chaotic scattering due to their interaction with the Earth's magnetic field. Additionally, we consider scenarios where the protons, during their interaction, fall onto the Earth's surface. We compare the dipole and Luhmann tail cases by computing the distributions of escape and residence times, the exit basins, and the fractal dimensions of their boundaries. We present a robust symplectic numerical scheme which is suitable for analyzing the impact of the nonlinear effects and the presence of strong sensitivity to initial conditions when the model goes beyond the pure dipolar field. Surprisingly, we uncover a scaling law between the coefficient of the decay law and the energy of the protons. Furthermore, our computation of the fractal dimension of the exit basin boundaries D versus the distance between the protons and the Earth z_{0} reveals a decrease in D as z_{0} increases. We expect this work to be useful for a better understanding of the behavior of protons under the influence of the Earth's magnetic field when they are in the chaotic scattering regime.","PeriodicalId":20085,"journal":{"name":"Physical review. E","volume":"111 4-1","pages":"044216"},"PeriodicalIF":2.4,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144135940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Finding influential cores via normalized Ricci flows in directed and undirected hypergraphs with applications. 通过有向和无向超图中的归一化Ricci流寻找有影响的核心及其应用。

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2025-04-01 DOI: 10.1103/PhysRevE.111.044316

Prithviraj Sengupta, Nazanin Azarhooshang, Réka Albert, Bhaskar DasGupta

{"title":"Finding influential cores via normalized Ricci flows in directed and undirected hypergraphs with applications.","authors":"Prithviraj Sengupta, Nazanin Azarhooshang, Réka Albert, Bhaskar DasGupta","doi":"10.1103/PhysRevE.111.044316","DOIUrl":"https://doi.org/10.1103/PhysRevE.111.044316","url":null,"abstract":"Many biological and social systems are naturally represented as edge-weighted directed or undirected hypergraphs since they exhibit group interactions involving three or more system units as opposed to pairwise interactions that can be incorporated in graph-theoretic representations. However, finding influential cores in hypergraphs is still not as extensively studied as their graph-theoretic counterparts. To this end, we develop and implement a hypergraph-curvature guided discrete time diffusion process with suitable topological surgeries and edge-weight renormalization procedures for both undirected and directed weighted hypergraphs to find influential cores. We successfully apply our framework for directed hypergraphs to seven metabolic hypergraphs and our framework for undirected hypergraphs to two social (coauthorship) hypergraphs to find influential cores, thereby demonstrating the practical feasibility of our approach. In addition, we prove a theorem showing that a certain edge weight renormalization procedure in a prior research work for Ricci flows for edge-weighted graphs has the undesirable outcome of modifying the edge weights to negative numbers, thereby rendering the procedure impossible to use. This paper formulates algorithmic approaches for finding core(s) of (weighted or unweighted) directed hypergraphs.","PeriodicalId":20085,"journal":{"name":"Physical review. E","volume":"111 4-1","pages":"044316"},"PeriodicalIF":2.4,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144135960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

First-passage times for generalized heterogeneous telegrapher's processes. 广义异构电报过程的首次通过时间。

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2025-04-01 DOI: 10.1103/PhysRevE.111.044105

T Sandev, R K Singh, V Méndez, L Kocarev

引用次数: 0