Abstract
Traffic congestion is a serious problem faced by many cities worldwide today. Congestion warning information is one of the important influencing factors of urban road congestion; To this end, based on the dynamics of infectious diseases, a congestion warning information dissemination model considering the attitudes of travelers and the network structure was constructed. The existence and stability of the equilibrium points of non congestion warning information and congestion warning information in the model were analyzed, and the optimal control strategy of the model was proposed. Numerical simulation was conducted to verify the results of theoretical analysis, simulate and analyze the impact of changes in various parameters in the model on the dissemination of congestion warning information, and perform sensitivity analysis on several parameters. The results indicate that travelers are more inclined towards “fast” modes of transportation and have a stronger willingness to share congestion warning information. The dissemination range of warning information is wider, which can play a positive role in reducing traffic congestion pressure.
1 Introduction
With the rapid development of the urban economy, urban traffic congestion has brought many inconveniences to people’s travel, and alleviating the pressure of urban traffic congestion has become an important task that urgently needs to be solved in the development of many cities around the world. The dissemination of road congestion warning information is an important way to prevent and control urban congestion [1]. The attitude of travelers toward congestion warning information can affect the dissemination process of warning information to some extent, thereby affecting the degree of urban traffic congestion. Therefore, It is necessary to explore the dissemination mechanism of congestion warning information considering the attitude of travelers and propose corresponding optimization strategies.
In recent years, urban road congestion warning information has been disseminated among users through social networks and navigation apps, providing travel plans for travelers and alleviating the pressure of urban traffic congestion. Scholars from different fields have conducted numerous studies on congestion warning information. Ahmad et al. proposed a novel detection scheme (IVCD) to support the propagation of congestion information that is about to occur on all roads in its coverage area [2]. Many scholars began discussing the application of space supply chain in transportation many years ago [3–9]. Yilmaz et al. proposed an urban traffic monitoring system that utilizes participatory sensing and cloud messaging capabilities and can issue warnings or suggestions to drivers near congested roads or on the route [10]. Online sharing of congestion warning information is an effective way to quickly spread congestion information. Travelers can make timely choices and change routes, which is beneficial for controlling vehicle diversion. Yang et al. proposed the concept of an event consistency proof suitable for vehicle networks and introduced two-stage transactions on the blockchain to send warning messages in appropriate regions and time periods [11]. Shi et al. proposed a framework for a physically informed spatiotemporal graph convolutional neural network (PSTGCN) based on the theory of physically informed deep learning to estimate congestion warning information [12]. Ning et al. proposed the traffic warning message dissemination system (TWMDS) framework, which allows travelers to quickly rebuild their travel paths to alleviate traffic congestion [13]. Humayun et al. promotes dissemination by using roadside message proxies to provide real-time traffic information about traffic congestion and unexpected traffic events [14]. Jiang et al. proposed an innovative early traffic congestion warning system to monitor and plan traffic conditions [15]. The above discussion describes the research conducted by scholars on how to develop and send a complete set of congestion warning information, indicating the importance of congestion warning information for urban traffic management.
There are lots of studies in transportation areas to discuss the value of information, Zhang et al. developed a day-to-day route-choice learning model with friends’ travel information [16]. Chen et al. presented a model of a social network-based attitude diffusion system in the context of activity and travel choice behavior [17]. Yu et al. investigated the welfare effects of inaccurate pre-trip information on commuters’ departure time choice under stochastic bottleneck capacity in the morning commute [18]. Han et al. experimentally investigated how routing advice influenced strategic uncertainty and analyzed compliance behavior and decision time that might affect strategic uncertainty [19].
The dissemination of congestion warning information is strongly influenced by travelers’ psychological perceptions of congestion status. Many scholars have studied the attitudes of travelers toward road congestion. Khoo et al. believes that the choice of travel route is directly related to drivers’ sensitivity to congestion and that changing the travel route is positively correlated with the degree of road congestion [20]. Huang et al. quantified drivers’ response to congestion warning information and the traffic congestion mitigation effect based on congestion warning information [21]. Zhou et al. proposed that traffic congestion can be spread among people or through public media, leading to the interactive dissemination of warning information in the network [22]. Huang et al. considered two states in the warning information network, travelers receiving warning information and travelers not receiving warning information, and studied the impact of travelers’ behavioral characteristics when facing warning information on the spread of congestion risk [23]. The warning information is divided into two types: “fast speed” and “short distance”. These two types of warning information can lead travelers to make different travel decisions. The impact of various warning information, such as “fast speed” and “short distance”, on traffic congestion pressure should be analyzed [24].
From the perspective of research methods, because the dissemination process of urban congestion warning information is similar to that of infectious diseases, infectious disease models can be widely applied to analyze various transmission mechanism problems. Saberi et al. (2020) described the dynamic process of urban traffic congestion transmission and dissipation based on the susceptibility infection recovery (SIR) model and monitored, predicted, and controlled the status of urban traffic congestion [25]. Jia et al. proposed an improved susceptible infected susceptible (SIS) congestion propagation model to estimate the probability of congestion risk (RPC) in subway networks [26]. Chen et al. established an urban traffic congestion propagation model based on the SIS propagation theory to study the mechanism and characteristics of urban traffic congestion propagation [27]. For example, Ma et al. established a new UAU-SEIR (Unaware Aware Unaware Susceptible Exposed Infected Recovered) model to study the impact of individual and mass media information dissemination on epidemic transmission [28]. She et al. constructed an SIS model to study the mutual influence between the spread of epidemics and the spread of opinions on the network [29]. Nian et al. explored the propagation patterns of public opinion in social networks based on the susceptible exposed infected recovered (SEIR) model and conducted empirical research on the relationships among rumor propagation, user characteristics, and differences in subject interests. The authors also analyzed the common effects of individual factors and the social environment [30]. Ojha et al. developed a model based on epidemiological methods for detecting and controlling false information propagation in OSNs [31].
In summary, most of the current research has focused on developing congestion warning information and controlling the spread of urban traffic congestion, with little research on the dissemination patterns of congestion warning information. Some studies have also considered the impact of congestion warning information on urban traffic congestion but have considered only two states: each traveler received or did not receive warning information. In addition, when network platforms push warning information, they directly push “fast” and “short distance” messages without considering that travelers’ attitudes toward congestion directly affect the dissemination of congestion warning information. Therefore, to better predict and control the dissemination process of congestion warning information, it is necessary to consider the impact of network topology characteristics and complex user behavior characteristics on the dissemination process of congestion warning information in the social network. In view of this, this article divides travelers into ignorant, negative, positive, disseminator, and immune individuals based on the classic infectious disease SIR model and considers the structural characteristics of the congestion warning information dissemination network to construct a congestion warning information dissemination model to more accurately and reasonably describe the dynamic laws of congestion warning information dissemination in social networks.
The remainder of this article is organized as follows: In the section on model construction, a congestion warning information dissemination model (SPEIR model) is constructed by considering the attitudes of travelers toward road congestion. In the section on model analysis, the basic regeneration number of the model is calculated, and the stability of no congestion warning information and the presence of congestion warning information are analyzed. In the section on the optimal control model, the optimal control model is constructed, and the optimal control strategy is proposed. In the numerical simulation section, the stability analysis in the previous section is simulated and verified, and the impact of parameter changes on the propagation process of congestion warning information is simulated. A sensitivity analysis of the parameters is conducted, and numerical simulations are conducted on the optimal control strategy. The conclusion section provides a summary of the entire article and highlights its limitations.
2 Materials and methods
The model constructed in this article is based on the classic SIR model, assuming that congestion warning information propagates in a mixed uniform network with nodes, each node represents a user in the social network, and the total number of nodes is variable. The information can be divided into 5 categories: (1) Ignorant, which refers to the group of people who have not been exposed to congestion warning information but are easily receptive to it, denoted as ; (2) Negative individuals, who receive congestion warning messages but are not sensitive to congestion and hold a negative attitude, tend to choose the group with a “short distance”, remember ; (3) Positive individuals, who receive congestion warning information and are highly sensitive to road congestion, hold a positive attitude and are more inclined to choose the group with “fast speed”, denoted as ; (4) The disseminator, who receives congestion warning information and chooses to share it with other users, denoted as . (5) Immune individuals who are not interested in congestion warning information are referred to as .
In a social system, the number of users on social networks dynamically changes over time. Therefore, this article assumes that the number of people joining social networks per unit of time is . Moreover, considering that ignorant, negative, positive, spreaders, and immune individuals may all exit social networks for certain reasons, this article assumes that each type of user has the same population migration rate .
When the ignorant individuals receive the congestion warning information, if they are willing to share congestion warning information with other users, they will transform into distributors with probability ; if the ignorant person is not interested in congestion warning information, they will transition to an immune person based on probability ; if the ignorant tends to have a shorter distance due to their sensitivity to traffic congestion, preference for congestion risk, or other reasons, then probability becomes a negative factor; if there is a tendency toward “fast speed”, then the probability changes to a positive one.
Although passive individuals are not sensitive to traffic congestion, if they are willing to share congestion warning information with others, they will transform into distributors based on probability ; if a negative person gradually becomes uninterested in congestion warning information, they will transition to an immune person based on probability . If the active participants are willing to share congestion warning information, they will transform into disseminators based on probability ; the disseminator will eventually transform into an immune recipient with a probability of . This article assumes that the immune state is the final absorption state in the network; that is, the immune recipient will not undergo a state change at any time.
In addition, the impact of network structure on the dissemination process of congestion warning information should be considered. If each social network user is viewed as a node in the network and the connections between users are viewed as edges between nodes, then the social network can be represented as a directed graph . Among them, represents the set of nodes, represents the set of edges, and represents the relationship edge to which node points; that is, node connects to node . Obviously, the more edges a node has in a network, the closer the connections between nodes are. The more paths congestion warning information can propagate, the more conducive it is to the dissemination of congestion warning information. In graph theory, the degree of node is defined as the number of edges connected to that node. The average degree of all nodes in a network is called the average degree of the network, , where represents the total number of nodes in the network. This article uses the average degree to describe the degree of closeness of the social network structure.
Based on the above assumptions, the state transition process of social network users during the dissemination of congestion warning information is obtained, as shown in
Figure 1.
Table 1provides the meaning of each parameter in
Figure 1, where all probabilities are positive constants.
(1) As shown in Figure 1, The changes in the states of the ignorant, negative, positive, spreader, and immune individuals per unit time are as follows: Within a unit of time, there are users who have joined social networks and are all in an ignorant state; that is, they have not yet received congestion warning information. The population density of ignorant individuals who come into contact with distributors and receive congestion warning information is . Similarly, the density of people who quit social networks for some reason is . Therefore, the density of the ignorant population changes by per unit time.
(2) The density of people who transform from ignorant to negative within a unit of time is . The density of people who are willing to share congestion warning information with others and become spreaders is . The population density of passive individuals who forget or are not interested in congestion warning information, thus transforming into immune individuals. The density of negative individuals who withdraw from social networks for some reason is . Therefore, the change in the density of negative individuals per unit of time is .
(3) The density of people who transform from ignorant to active within a unit of time is . Similarly, the density of people who are willing to share congestion warning information with others and become distributors is . Similarly, the population density of active participants who forget or are not interested in congestion warning information, thus transforming into immune recipients, is . Similarly, the density of active users who withdraw from social networks for some reason is . Therefore, the population density of positive individuals varies by per unit time.
(4) The population density of ignorant individuals transforming into disseminators within a unit of time is ; the density of the population where negatives transform into disseminators is ; the population density of positive individuals transforming into disseminators is ; the population density of spreaders who forget or are not interested in congestion warning information and thus become immune recipients is ; and the population density of disseminators who withdraw from social networks for some reason is . Therefore, the population density of the spreader varies by per unit time.
(5) The population density of uninformed, passive, active, and disseminators who become immune due to their neutrality or lack of interest in congestion warning information per unit of time is ; the population density of immune individuals who withdraw from social networks for some reason is . Therefore, the population density of immunized individuals varies by .
FIGURE 1
The flow diagram of the model.
TABLE 1
| Parameter | Description |
|---|---|
| The population density of ignorant individuals at time | |
| The population density of negative individuals at time | |
| The population density of positive individuals at time | |
| The population density of disseminators at time | |
| The population density of immunized individuals at time | |
| The number of immigrants in the social system per unit time | |
| Removal rate per unit time | |
| The probability of the ignorant transforming into the disseminator | |
| The probability of the ignorant transforming into the negative | |
| The probability of the ignorant transforming into positive | |
| The probability of the negative transforming into the disseminator | |
| The probability of the positive transforming into the disseminator | |
| The probability of the negative transforming into the immune | |
| The probability of the positive transforming into the immune | |
| The probability of the disseminator transforming into the immune | |
| Network average |
The parameters description of SPEIR model.
Based on the above analysis, this article considers the congestion warning information dissemination model for the sensitivity of travelers to traffic congestion as follows:
Satisfy
3 Stability analysis of the model
It is not difficult to determine that the model has a balance point without congestion warning information. The existence of this equilibrium point means that when the evolution of the congestion warning information dissemination system reaches a steady state, there will be no individual users infected by the congestion warning information, that is, the congestion warning information will no longer spread in the network. This article uses the next-generation matrix method to calculate the basic regeneration number [32] of Equation 1. The specific calculation process is shown in Equations 2–5.
Let , then Equation 1 can be written as
We can get:
Through calculation, it can be concluded that
Therefore, the basic regeneration number of system Equation 1 is the spectral radius , represented by , and the calculated basic regeneration number of the system is:
When , there exists an equilibrium point (Equation 6) for the propagation of congestion warning information in Equation 1, where (The proof process can be found in Supplementary Appendix A)
When , the equilibrium point of the congestion free warning information is locally asymptotically stable in the feasible domain. (The proof process can be found in Supplementary Appendix B)
When , the equilibrium point of the congestion-free warning information is globally asymptotically stable. (The proof process can be found in Supplementary Appendix C)
When occurs, the congestion warning information at equilibrium point is locally asymptotically stable. (The proof process can be found in Supplementary Appendix D)
The congestion warning information has an equilibrium point that is globally asymptotically stable. (The proof process can be found in Supplementary Appendix E)
4 Optimal control model
Convert the four proportional constants in the model into control variables
Therefore, it can be proposed that the objective function is Equation 7:
Satisfy the following state system:
The initial conditions of system Equation 8 meet (Equation 9):
Where:while is the admissible control set (Equation 10). The time interval of control is between 0 and , are positive weight coefficients shown the control strength and importance of four control measures.
An optimal control pair exists so that the function is established below (Equation 11) (The proof process can be found in Supplementary Appendix F):
For the optimal control pair of state System Equation 8, there exist adjoint variables that satisfy (Equation 12) (The proof process can be found in Supplementary Appendix G):
With boundary conditions (Equation 13):
In addition, the optimal control pair of state System Equation 8 can be given by (Equation 14):
5 Numerical simulations
In this section, MATLAB R2021a simulation software is used, and the method is used to numerically simulate the differential equation system given in Equation 1. To verify the theoretical analysis results, the impacts of different parameters in the model on the propagation process of congestion warning information are analyzed, a sensitivity analysis is conducted on , and the optimal control problem is numerically simulated. Assuming that congestion warning information is initially propagated in a mixed uniform network with nodes, each node represents the users who can receive congestion warning information, . In the initial state, there are only 100 propagators, 100 positives, and 100 negatives, namely, .
In , the population density changes of the uninformed, active, passive, spreading, and immune users who can receive congestion warning information in are shown in Figure 2A. In the process of disseminating congestion warning information, the population density values of positive, negative, disseminators, and immune individuals increase first, reaches their peak values, then begin to decrease, and finally become 0; the density of the ignorant population rapidly decreases until it reaches equilibrium. Theorems 2, 3 indicate that when occurs, congestion warning information will eventually disappear in the propagation network, indicating that the equilibrium point of no congestion warning information is stable. The simulation results shown in Figure 2A further confirm this conclusion.
FIGURE 2
Stability of the equilibrium point of (A) and (B)
When , the population density changes of the ignorant, active, passive, spreading, and immune users who can receive congestion warning information in are shown in Figure 2B. In the process of disseminating congestion warning information, as shown in Figure 2B, the population density values of positive, negative, spreading, and immune individuals in the congestion warning information first increase, reaches their peak values, and gradually stabilize. The population density of ignorant individuals gradually decreases until it reaches equilibrium. Theorems 1, 4, 5 indicate that the congestion warning information of the model established in this article has a stable equilibrium point at ; that is, it will continue to exist in the network at a certain amount. The simulation results shown in Figure 2B further verify the above conclusion.
Figures 3A–D depict the effects of different parameters in the model on the population density of congestion warning information disseminators. Figure 3A illustrates the trend of the population density of spreaders over time when and take different values. Figure 3B illustrates the trend of the population density of spreaders over time when different values of and are taken. The results show that the larger is, the greater the probability of ignorant individuals spreading congestion warning information, the higher the peak density of the spreader population, and the shorter the time required to reach the peak. The network average represents the degree of closeness between users. As increases, the disseminator of congestion warning information will reach a higher peak in a shorter time. Figures 3A, B show that if ignorant individuals have a greater willingness to share congestion warning information with others or have closer contact with users after being exposed to it, this further promotes the dissemination of congestion warning information and alleviates traffic congestion pressure.
FIGURE 3
Trend of the density of disseminators over time under (A) different values, (B) different values, (C) different values and (D) different values.
Figure 3C shows the trend of the population density of spreaders over time when and take different values. The results show that the larger is, the more willing people who are negative about congestion warning information are to make changes, realize the adverse effects of congestion on traffic, and share congestion information with others. The peak density of the spreader population is greater, and the time required to reach the peak is shorter. Figure 3D shows the trend of the population density of spreaders over time when and take different values. The results indicate that as the value of increases, the willingness of congestion warning information enthusiasts to disseminate congestion warning information increases, resulting in a significant increase in the population density of disseminators.
Figure 4 shows the trend of the density of negative individuals over time when and take different values. Figure 5 shows the trend of the density of positive individuals over time when and take different values. The simulation results show that when an ignorant individual receives congestion warning information, if the ignorant individual tends to travel a shorter distance, the population density of the passive will increase with increasing congestion; if ignorant individuals tend to travel faster, then the population density of positive individuals will increase with increasing .
FIGURE 4
Trend of negative population density over time under different values.
FIGURE 5
Trend of population density of active participants over time under different values.
6 Discussion
To evaluate the influence of parameters on the basic regeneration number , this article conducts a sensitivity analysis on . Based on the previous calculation of , it can be concluded that (Equation 15)
This means that as increases, the basic regeneration number also increases, as shown in Figure 6A. This indicates that the greater the closeness between users is, the more conducive they are to the dissemination of congestion warning information; that is, the more people there are in contact with the disseminator, the more likely they are to be to spread congestion warning information.
FIGURE 6
(A, B) The sensitivity analysis of the basic reproduction number.
For parameters and , it can be obtained that (Equations 16, 17)
This means that the basic regeneration number increases with increasing and decreases with increasing . As shown in Figure 6B. From this, it can be seen that when ignorant individuals are exposed to congestion warning information, they are more willing to spontaneously spread congestion warning information, which promotes the dissemination of congestion warning information. In addition, if the disseminator is more likely to forget or shift his or her attention to congestion warning information, the dissemination of congestion warning information will be suppressed. In fact, the current speed of updating social information on the internet is extremely fast, and the attention given to irrelevant congestion warning information is very limited. Therefore, the forgetting mechanism has a significant impact on the dissemination process of congestion warning information.
7 Optimal control simulation
To analyze the impact of the optimal control on the propagation process of congestion warning information when adopting the optimal control strategy, this section simulates the changes in the active participant and the disseminator during the period from to . The simulation is divided into the following three situations: (1) no control, (2), control of only a single variable, and (3) optimal control strategy.
In the uncontrolled strategy, when , let to control , let to control and the trend of population density changes among active participants when adopting the optimal control strategy. As shown in Figure 7A, when the optimal control strategy is adopted for and , the density of active participants reaches its maximum value, indicating that the more people tend to be “fast”, the wider the dissemination range of congestion warning information, which is beneficial for alleviating traffic congestion pressure.
FIGURE 7
Trend of population density of (A) and (B) over time under the different control strategies.
When , let control , let control , let control and change the density of the spreader population when adopting the optimal control strategy. As shown in Figure 7B, when and adopt the optimal control strategy, the density of the spreader population reaches its maximum value. This indicates that the greater the willingness of the ignorant , the passive , and the active to share congestion warning information is, the more conducive it is to the rapid dissemination of congestion warning information, which is conducive to the quick response of travelers and thus alleviates traffic congestion pressure.
8 Conclusion
In this paper, a congestion warning information dissemination model is constructed by considering the influence of travelers’ attitudes on the dissemination of congestion warning information. The basic reproduction number is calculated, and the existence and stability of the equilibrium points of no congestion warning information and congestion warning information in the model are analyzed. The existence of the optimal control of the model is verified, and the optimal control strategy of the model is proposed. In addition, the basic theorem of the model and the impact of changes in various parameters in the simulation model on the propagation process of congestion warning information are verified through numerical simulation, and sensitivity analysis and optimization control simulation are carried out. The research conclusions of this article are as follows:
(1) Based on the combination of two attitudes (positive and negative) of travelers toward road congestion, the SPEIR model for both negative and positive individuals is introduced on the basis of the classic infectious disease model. Moreover, the dissemination of congestion warning information is influenced by the topology of social networks. Therefore, the network average is introduced to characterize the tightness of the social network structure, increasing the realism and reasonableness of the model.
(2) Based on the next-generation matrix method, the basic regeneration number is determined, and the existence and stability of the equilibrium points of congestion free warning information and congestion warning information in the model are evaluated. When the basic regeneration number is reached, the congestion warning information eventually disappears from the system and reaches stability. When occurs, congestion warning information will continue to exist in the system and gradually stabilize.
(3) By utilizing optimal control theory, establishing and discussing optimal control problems, and formulating optimal control strategies that simultaneously increase the population density of both positive and disseminator, important reference opinions are provided for controlling or mitigating traffic congestion.
(4) The sensitivity of travelers to road congestion directly affects the dissemination process of congestion warning information. A negative or more inclined attitude toward road congestion after receiving congestion warning information is not conducive to alleviating traffic congestion pressure; if travelers are more sensitive to road congestion, they are more inclined to choose “fast” modes of transportation and have a stronger willingness to share congestion warning information, which is beneficial for preventing and controlling traffic congestion outbreaks. Therefore, relevant departments have taken timely measures to achieve vehicle diversion and real-time push congestion warning information to improve the sensitivity of traveler information, providing a reference for using congestion warning information dissemination models to suppress practical problems of road congestion.
There are some limitations in this paper. First, the average field method is used to construct a congestion warning information dissemination model, without considering the impact of social network heterogeneity on the process of congestion warning information dissemination. Therefore, in the future, congestion warning information dissemination models for different network structures should be investigated. Second, Only MATLAB was used for numerical simulation of the model, but the real process of congestion warning information dissemination is often more complex.
Therefore, in the future, the effectiveness of the model can be further verified in a real network environment, taking into account various individual psychological and behavioral factors, as well as the dynamic laws of congestion warning information dissemination evolution in a dual-layer coupled online and offline social network.
Statements
Data availability statement
The original contributions presented in the study are included in the article/Supplementary Material, further inquiries can be directed to the corresponding author.
Author contributions
HY: Conceptualization, Formal Analysis, Methodology, Writing–original draft, Writing–review and editing. HL: Methodology, Project administration, Supervision, Writing–review and editing. QS: Conceptualization, Formal Analysis, Investigation, Methodology, Supervision, Writing–review and editing. YJ: Formal Analysis, Methodology, Supervision, Writing–review and editing.
Funding
The author(s) declare that financial support was received for the research, authorship, and/or publication of this article. This work was supported by the 2023 Research Outcomes of Basic Scientific Research Projects of Liaoning Provincial Department of Education (JYTZD2023090) and the Liaoning Province Education Science Planning Project (JG20DB070).
Conflict of interest
Author QS was employed by Asset Company.
The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
Publisher’s note
All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article, or claim that may be made by its manufacturer, is not guaranteed or endorsed by the publisher.
Supplementary material
The Supplementary Material for this article can be found online at: https://www.frontiersin.org/articles/10.3389/fphy.2024.1490499/full#supplementary-material
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Summary
Keywords
congestion warning information, social networks, communication dynamics, traveler attitude, optimum control
Citation
Yan H, Li H, Sun Q and Jiang Y (2024) Communication dynamics of congestion warning information considering the attitudes of travelers. Front. Phys. 12:1490499. doi: 10.3389/fphy.2024.1490499
Received
03 September 2024
Accepted
01 October 2024
Published
16 October 2024
Volume
12 - 2024
Edited by
Ningbo Zhang, Beijing University of Posts and Telecommunications (BUPT), China
Reviewed by
Yasuko Kawahata, Rikkyo University, Japan
Xiao Han, Beijing Jiaotong University, China
Updates
Copyright
© 2024 Yan, Li, Sun and Jiang.
This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
*Correspondence: Hua Li, lh1@ustl.edu.cn
Disclaimer
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