A Review of Traffic Conflict Avoidance Methods at Intersection Using Vehicle-Infrastructure Cooperation System

Road intersections are important nodes for the convergence,turning,and diversion of traffic flows in the urban road network,but at the same time,due to the large traffic volume and conflict points at the intersection,it has become a traffic congestion and accident-prone area,which seriously affects road traffic safety and vehicle traffic efficiency.Therefore,it is of great significance to study the collaborative control strategy of urban intersections.This paper analyzes and summarizes the methods of intersection cooperative control based on intelligent connected vehicles in recent years,and looks forward to the future development trend and prospects of the combination of intersection cooperative control and Vehicle-Infrastructure Cooperation System.

Time-Critical Tasks Implementation in MEC Based Multi-Robot Cooperation Systems

Mobile edge computing(MEC) deployment in a multi-robot cooperation(MRC) system is an effective way to accomplish the tasks in terms of energy consumption and implementation latency. However, the computation and communication resources need to be considered jointly to fully exploit the advantages brought by the MEC technology. In this paper, the scenario where multi robots cooperate to accomplish the time-critical tasks is studied, where an intelligent master robot(MR) acts as an edge server to provide services to multiple slave robots(SRs) and the SRs are responsible for the environment sensing and data collection. To save energy and prolong the function time of the system, two schemes are proposed to optimize the computation and communication resources, respectively. In the first scheme, the energy consumption of SRs is minimized and balanced while guaranteeing that the tasks are accomplished under a time constraint. In the second scheme, not only the energy consumption, but also the remaining energies of the SRs are considered to enhance the robustness of the system. Through the analysis and numerical simulations, we demonstrate that even though the first policy may guarantee the minimization on the total SRs’ energy consumption, the function time of MRC system by the second scheme is longer than that by the first one.

BRI COOPERATION SYSTEM:GENERAL FRAMEWORK AND DEVELOPMENT PATH

As a major country with systematic influence,China proposed and is promoting cooperation within the framework of the Belt and Road Initiative(BRI).Such cooperation will surely exert important effects over the international order and governance.As BRI cooperation has entered a new era with high quality,it is necessary to reflect on the development of relevant mechanisms and platforms while drawing on experience from cooperation system of various forms,so as to realize better BRI cooperation outcomes.

Roles of N-cadherin in cerebral cortical development:cooperation with membrane trafficking and actin cytoskeletal regulation

Cell adhesion plays pivotal roles in the morphogenesis of multicellular organisms.Epithelial cells form several types of cell-to-cell adhesion,including zonula occludens(tight junctions),zonula adhaerens(adherens junctions),and macula adhaerens(desmosomes).Although these adhesion complexes are basically observed only in epithelial cells,cadherins,which are the major cell adhesion molecules of adherens junctions,are expressed in both epithelial and non-epithelial tissues,including neural tissues(Kawauchi,2012).The cadherin superfamily consists of more than 100 members,but classic cadherins.

MANUFACTURING SYSTEM SCHEDULING BASED ON MULTI-AGENT COOPERATION GAME

Aiming at the flexible manufacturing system with multi-machining and multi-assembly equipment, a new scheduling algorithm is proposed to decompose the assembly structure of the products, thus obtaining simple scheduling problems and forming the cOrrespOnding agents. Then, the importance and the restriction of each agent are cOnsidered, to obtain an order of simple scheduling problems based on the cooperation game theory. With this order, the scheduling of sub-questions is implemented in term of rules, and the almost optimal scheduling results for meeting the restriction can be obtained. Experimental results verify the effectiveness of the proposed scheduling algorithm.

PERMANENCE AND GLOBAL ATTRACTIVITY OF N-SPECIES COOPERATION SYSTEM WITH DISCRETE TIME DELAYS AND FEEDBACK CONTROLS

In this paper, we consider the N-species cooperation system with discrete time delays and feedback controls. By using the differential inequality theory and constructing a suitable Lyapunov functional, we obtain sufficient conditions which guarantee the permanence and the global attractivity of the system.

STABILITY OF LOTKA-VOLTERRA COOPERATION SYSTEM WITH SINGLE FEEDBACK CONTROL

In this paper, a Lotka-Volterra cooperation system with single feedback control is proposed and studied. We investigate the local stability and the global stability of the system. Our study shows that with suitable restriction on the coefficients of the feedback control variable, the system can still remain globally stable or become extinct, which shows that the feedback control variable plays a very important role in the dynamics behaviors of the system.

Conflict-Resolution in Multi-ES Cooperation System

In the so called “Group Problem” (we would like to term it “Group-Consulting Type Cooperation”), ESs of the same cooperating group may have different views towards the same problem, and the differences may sometimes be very great. For the circumstance of those ESs with relatively closer views, we present in this paper three methods of consistency treatment and a method for calcula- ting the maximal deviation of the confidence value about the cooperating group's common view based on the consistency degree of those different views. For the circumstance of those views being not very close to each other and also not very different from each other, we designed two synthesis functions for synthesizing multiple views. These two circumstances are formally defined in this paper. A comparison be- tween these two functions and the combining function in is also demonstrated. In the last section of this paper, we present a discussion about some further research topics of conflict-resolution in the group problem.

PERMANENCE AND GLOBAL STABILITY OF A DISCRETE COOPERATION SYSTEM

In this paper,a discrete cooperation system is studied. Sufficient conditions which guarantee the permanence and global stability of such system are obtained.

Regional container transportation system for Northeast Asia economic cooperation in the 21^(st) century

In this paper, the roles of infrastructure development and transportation coordination for Northeast Asian economic cooperation are discussed. It would be necessary to establish an efficient transportation network as soon as possible. 'Hub-and-Spoke'transportation system and China-Korean peninsula railway container transportation system might be more significant for regional economic cooperation.

Distributed Model Predictive Control for Networked Plant-wide Systems With Neighborhood Cooperation

For large-scale networked plant-wide systems composed by physically(or geographically) divided subsystems, only limited information is available for local controllers on account of region and communication restrictions. Concerning the optimal control problem of such subsystems, a neighbor-based distributed model predictive control(NDMPC) strategy is presented to improve the global system performance. In this scheme, the performance index of local subsystems and that of its neighbors are minimized together in the determination of the optimal control input, which makes the local control decision also beneficial to its neighboring subsystems and further contributes to improving the convergence and control performance of overall system.The stability of the closed-loop system is proved. Moreover, the parameter designing method for distributed synthesis is provided.Finally, the simulation results illustrate the main characteristics and effectiveness of the proposed control scheme.

JOINT ITERATIVE DECODING FOR SIMPLE-ENCODING SYSTEMATIC IRREGULAR-LDPC-BASED CODED COOPERATION IN NON-IDEAL RELAY CHANNEL

In this paper, a new kind of simple-encoding irregular systematic LDPC codes suitable for one-relay coded cooperation is designed, where the proposed joint iterative decoding is effectively performed in the destination which is in accordance with the corresponding joint Tanner graph characterizing two different component LDPC codes used by the source and relay in ideal and non-ideal relay cooperations. The theoretical analysis and simulations show that the coded cooperation scheme obviously outperforms the coded non-cooperation one under the same code rate and decoding complex. The significant performance improvement can be virtually credited to the additional mutual exchange of the extrinsic information resulted by the LDPC code employed by the source and its counterpart used by the relay in both ideal and non-ideal cooperations.

Correlation between breast cancer and lifestyle within the Gulf Cooperation Council countries:A systematic review

BACKGROUND In the six Gulf Cooperation Council countries(GCCCs),Bahrain,Saudi Arabia,Kuwait,Oman,Qatar and the United Arab Emirates,breast cancer(BC)is the greatest cause of cancer incidence and mortality.Obesity and physical inactivity are established risk factors for BC globally and appear to be more of a problem in high income countries like the GCCCs.AIM To determine whether obesity and physical inactivity are associated with BC incidence in the GCCCs using the United Kingdom as a comparator.METHODS This systematic review was carried out according to PRISMA guidelines.A cancer registry and a statistical data search was done to identify the BC incidence over the past two decades and the prevalence of obesity and physical inactivity in the GCCCs.Additionally,a systematic search of the databases,MEDLINE,Web of Science,and PubMed between 1999 and 2019 was performed to determine whether obesity and physical inactivity are risk factors for BC in the GCCCs.All papers were critically appraised according to their research methods and were assessed for quality and risk of bias.RESULTS BC was the top malignancy in each GCC country.Women tended to be diagnosed with BC at a younger age than women in the United Kingdom.The greatest 10-year increase in BC incidence was seen in Saudi Arabia(54.2%),,approximately seven times the rate of increase seen in the United Kingdom(7.6%).The prevalence of obesity and physical inactivity was greater in all the GCCCs in comparison to the United Kingdom.A total of 155 full studies were reviewed of which 17 were included.Of those,eight looked at the prevalence of obesity and physical inactivity in the Gulf States and nine looked at these as risk factors for BC.Only one study found an association between BC and obesity(odds ratio=2.29).No studies looked solely at the link between physical inactivity and BC.CONCLUSION The prevalence of obesity and physical inactivity was high within the GCCCs,but the majority of the included studies found no positive correlation between obesity or physical inactivity and BC.A high proportion of women in this study were pre-menopausal which could contribute to the negative findings.

Optimization Task Scheduling Using Cooperation Search Algorithm for Heterogeneous Cloud Computing Systems

Cloud computing has taken over the high-performance distributed computing area,and it currently provides on-demand services and resource polling over the web.As a result of constantly changing user service demand,the task scheduling problem has emerged as a critical analytical topic in cloud computing.The primary goal of scheduling tasks is to distribute tasks to available processors to construct the shortest possible schedule without breaching precedence restrictions.Assignments and schedules of tasks substantially influence system operation in a heterogeneous multiprocessor system.The diverse processes inside the heuristic-based task scheduling method will result in varying makespan in the heterogeneous computing system.As a result,an intelligent scheduling algorithm should efficiently determine the priority of every subtask based on the resources necessary to lower the makespan.This research introduced a novel efficient scheduling task method in cloud computing systems based on the cooperation search algorithm to tackle an essential task and schedule a heterogeneous cloud computing problem.The basic idea of thismethod is to use the advantages of meta-heuristic algorithms to get the optimal solution.We assess our algorithm’s performance by running it through three scenarios with varying numbers of tasks.The findings demonstrate that the suggested technique beats existingmethods NewGenetic Algorithm(NGA),Genetic Algorithm(GA),Whale Optimization Algorithm(WOA),Gravitational Search Algorithm(GSA),and Hybrid Heuristic and Genetic(HHG)by 7.9%,2.1%,8.8%,7.7%,3.4%respectively according to makespan.

A Proposal for the International Cooperation of Mangrove Ecosystem Studies in Guangxi of China

In the present paper,the situations concerning mangroves in Guangxi,China werereviewed with focus on resources,scientific research and natural conservation.The urgentproblems,related to coastal mangroves,were given out as some research projects for theconsiderations of foreign scientists and managers.On this basis,a favourable local study site ofmangrove ecosystem was introduced in detail.

Resource allocation schemes in multi-vehicle cooperation systems

With the rapid development of smart driving and communications technologies,an increasing number of vehicles are cooperating with each other to improve traffc effciency and travel safety.This paper conducts a comprehensive survey of multi-vehicle cooperation from the aspects of control and communication.Firstly,three typical multi-vehicle cooperation scenarios are summarized.Communication issues relating to multi-vehicle cooperation are then introduced,including communication types,requirements,and potential solutions.To address the control requirements,a general resource allocation solution for multi-vehicle cooperation is formulated;speci cally,two types of resource allocation scheme for intersection management are proposed.Finally,performance of the proposed schemes is evaluated and compared.

A Comparative Study of School-enterprise Cooperation and Work-study Combination System Construction in Vocational Education at Home and Abroad

In this paper, based on the experience and practice of school-enterprise cooperation in developed countries, the current situation ofschool-enterprise cooperation in China was studied. Through analysis and comparison, the mode of school-enterprise cooperationsuitable for higher vocational education in China was explored to promote the development of higher vocational education inChina. The current situation and existing problems of work-study integration in higher vocational education in China wereanalyzed, and different modes of work-study combination in foreign higher vocational education were compared. Under thecurrent situation, earnestly studying and drawing lessons from the experience of foreign developed countries is of greatsignificance to the continuing development of school-enterprise cooperation and the talent training mode of work-studycombination in national model colleges and key universities.

Research on the Design of International Cooperation System to Supply Global Public Goods:with A View on the Route Selection for China's Participation

Since the 1990 s, GPGs have become one of the questions arousing general concern in the international political and economic relations. It has its unique characteristics different from the public goods domestically supplied in any country in terms of organizational form,incentive mechanisms, implementation means and other aspects. The theory and policy proposal on GPGs mostly reflect the requirements of developing countries to seek an external environment favorable to their stable development, thus it is absolutely necessary to establish an efficient mechanism to supply GPGs for the countries of the world, especially for the developing ones to realize the national benefit and mutual development. The most efficient approach to resolve the problem of supplying GPGs is international cooperation, which raises critical requests on the design of an efficient and reasonable cooperative system. Following the principals of international cooperation system, China must choose an optimal route for supply of GPGs, which conforms to its own interests, by starting from the supply of the regional public goods and in accordance with its own economic development and financial capacity.

Rough set based multi-agent system cooperation for industrial supervisory interface system

In this paper, rough set theory is introduced into the interface multi-agent system （MAS） for industrial supervisory system. Taking advantages of rough set in data mining, a cooperation model for MAS is built. Rules for avoiding cooperation conflict are deduced. An optimization algorithm is used to enhance security and real time attributes of the system. An application based on the proposed algorithm and rules are given.

Research on Cognitive Cooperation in Multi-Agent Systems

The accomplishment of a complex problem usually involves cooperation between participators with different knowledge background concerned. This paper identifies interdependency between different sub problems （through problem decomposition） as the major factor that influences cooperative relations in multi-Agent systems, based on which we propose an efficient means to measure cooperation coefficient （degree） between different Agents. Then cognitive cooperation between Agents is analyzed which aims at collecting the wisdom of the cognitive community for a systematic solution to the overall problem.