期刊文献+
共找到92,068篇文章
< 1 2 250 >
每页显示 20 50 100
Discreet investors exert greater influence on cooperation in the public goods game
1
作者 康洪炜 金展瑶 +4 位作者 李明远 旺咩 孙兴平 沈勇 陈清毅 《Chinese Physics B》 SCIE EI CAS CSCD 2024年第3期170-178,共9页
This paper studies the evolutionary process of cooperative behavior in a public goods game model with heterogeneous investment strategies in square lattices.In the proposed model,players are divided into defectors,coo... This paper studies the evolutionary process of cooperative behavior in a public goods game model with heterogeneous investment strategies in square lattices.In the proposed model,players are divided into defectors,cooperators and discreet investors.Among these,defectors do not participate in investing,discreet investors make heterogeneous investments based on the investment behavior and cooperation value of their neighbors,and cooperators invest equally in each neighbor.In real life,heterogeneous investment is often accompanied by time or economic costs.The discreet investors in this paper pay a certain price to obtain their neighbors'investment behavior and cooperation value,which quantifies the time and economic costs of the heterogeneous investment process.The results of Monte Carlo simulation experiments in this study show that discreet investors can effectively resist the invasion of the defectors,form a stable cooperative group and expand the cooperative advantage in evolution.However,when discreet investors pay too high a price,they lose their strategic advantage.The results in this paper help us understand the role of heterogeneous investment in promoting and maintaining human social cooperation. 展开更多
关键词 public goods game heterogeneous investment discreet investors cooperation
原文传递
Role Dynamic Allocation of Human-Robot Cooperation Based on Reinforcement Learning in an Installation of Curtain Wall
2
作者 Zhiguang Liu Shilin Wang +2 位作者 Jian Zhao Jianhong Hao Fei Yu 《Computer Modeling in Engineering & Sciences》 SCIE EI 2024年第1期473-487,共15页
A real-time adaptive roles allocation method based on reinforcement learning is proposed to improve humanrobot cooperation performance for a curtain wall installation task.This method breaks the traditional idea that ... A real-time adaptive roles allocation method based on reinforcement learning is proposed to improve humanrobot cooperation performance for a curtain wall installation task.This method breaks the traditional idea that the robot is regarded as the follower or only adjusts the leader and the follower in cooperation.In this paper,a self-learning method is proposed which can dynamically adapt and continuously adjust the initiative weight of the robot according to the change of the task.Firstly,the physical human-robot cooperation model,including the role factor is built.Then,a reinforcement learningmodel that can adjust the role factor in real time is established,and a reward and actionmodel is designed.The role factor can be adjusted continuously according to the comprehensive performance of the human-robot interaction force and the robot’s Jerk during the repeated installation.Finally,the roles adjustment rule established above continuously improves the comprehensive performance.Experiments of the dynamic roles allocation and the effect of the performance weighting coefficient on the result have been verified.The results show that the proposed method can realize the role adaptation and achieve the dual optimization goal of reducing the sum of the cooperator force and the robot’s Jerk. 展开更多
关键词 Human-robot cooperation roles allocation reinforcement learning
下载PDF
Resource Allocation for IRS Assistedmm Wave Wireless Powered Sensor Networks with User Cooperation
3
作者 Yonghui Lin Zhengyu Zhu 《Computer Modeling in Engineering & Sciences》 SCIE EI 2024年第1期663-677,共15页
In this paper,we investigate IRS-aided user cooperation(UC)scheme in millimeter wave(mmWave)wirelesspowered sensor networks(WPSN),where two single-antenna users are wireless powered in the wireless energy transfer(WET... In this paper,we investigate IRS-aided user cooperation(UC)scheme in millimeter wave(mmWave)wirelesspowered sensor networks(WPSN),where two single-antenna users are wireless powered in the wireless energy transfer(WET)phase first and then cooperatively transmit information to a hybrid access point(AP)in the wireless information transmission(WIT)phase,following which the IRS is deployed to enhance the system performance of theWET andWIT.We maximized the weighted sum-rate problem by jointly optimizing the transmit time slots,power allocations,and the phase shifts of the IRS.Due to the non-convexity of the original problem,a semidefinite programming relaxation-based approach is proposed to convert the formulated problem to a convex optimization framework,which can obtain the optimal global solution.Simulation results demonstrate that the weighted sum throughput of the proposed UC scheme outperforms the non-UC scheme whether equipped with IRS or not. 展开更多
关键词 Intelligent reflecting surface millimeter wave wireless powered sensor networks user cooperation resource allocation
下载PDF
China-ASEAN Technological Cooperation Digital and green technologies remain the focus of cooperation
4
作者 Gao Yuan 《China Report ASEAN》 2024年第1期29-31,共3页
At the 11th Forum on China-ASEAN Technology Transfer and Collaborative Innovation(hereinafter referred to as the China-ASEAN Innovation Forum)in July 2023,ASEAN Secretary-General Kao Kim Hourn highlighted the pivotal ... At the 11th Forum on China-ASEAN Technology Transfer and Collaborative Innovation(hereinafter referred to as the China-ASEAN Innovation Forum)in July 2023,ASEAN Secretary-General Kao Kim Hourn highlighted the pivotal role of technology transfer and innovation in driving economic growth.He emphasized that technology transfer can assist China and ASEAN in bypassing traditional developmental stages. 展开更多
关键词 ASEAN driving cooperation
下载PDF
Boundless Potential China-Africa cooperation in the space sector exemplifies mutually beneficial partnerships
5
作者 HU FAN 《ChinAfrica》 2024年第5期18-19,共2页
Exports of Chinese satellites,joint construction of space infrastructure,and joint research and development of satellites...The recent years have seen substantial growth in China-Africa cooperation in the space sector... Exports of Chinese satellites,joint construction of space infrastructure,and joint research and development of satellites...The recent years have seen substantial growth in China-Africa cooperation in the space sector,which is bringing tangible benefits to both sides. 展开更多
关键词 mutually bringing cooperation
原文传递
Innovative Exploration and Research on International Exchange and Cooperation Mechanisms under the Background of Hainan Free Trade Port
6
作者 Xiaochao Yao 《Proceedings of Business and Economic Studies》 2024年第1期150-154,共5页
In order to explore and foster innovation in international exchange and cooperation,this study focuses on the background of the construction of the Hainan Free Trade Port.It delves into the current development status,... In order to explore and foster innovation in international exchange and cooperation,this study focuses on the background of the construction of the Hainan Free Trade Port.It delves into the current development status,characteristic demands,and potential challenges of its international exchange and cooperation mechanisms.Through a comprehensive analysis of relevant cases,survey questionnaires,and literature,this study aims to provide feasible innovative models and recommendations to promote the sustained development of the Hainan Free Trade Port in the field of international exchange and cooperation,injecting new vitality into China’s economic globalization.This exploration contributes to a deeper understanding of the development of free trade ports and provides insights and references for other countries and regions. 展开更多
关键词 Free trade port International exchange cooperation mechanism
下载PDF
Application of Nursing Cooperation Path in Operating Room and Analysis of Complication Rate During Laparoscopic Hysterectomy
7
作者 Xiaohong Shen 《Journal of Clinical and Nursing Research》 2024年第1期222-227,共6页
Objective:To explore the clinical benefits achieved by implementing the operating room nursing cooperation path for patients undergoing laparoscopic hysterectomy.Methods:64 laparoscopic hysterectomy cases were divided... Objective:To explore the clinical benefits achieved by implementing the operating room nursing cooperation path for patients undergoing laparoscopic hysterectomy.Methods:64 laparoscopic hysterectomy cases were divided into groups according to the order of admission.The control group received routine perioperative care.The observation group implemented the nursing cooperation path in the operating room on the same basis as the control group.The two groups’physiological responses,stimulus indicators,anxiety,and complication rates were compared.Results:The heart rate,blood pressure 0.5 hours after surgery,anxiety scores 1 day before and 3 days after surgery,and the total number of complications in the observation group were all lower than those in the control group(P<0.05).Conclusion:The development of a nursing cooperation path in the operating room can help patients undergoing laparoscopic hysterectomy reduce heart rate,blood pressure,stress responses,and the risk of complications,and is worthy of promotion. 展开更多
关键词 Laparoscopic hysterectomy Operating room nursing cooperation path COMPLICATIONS
下载PDF
Research on the Reform of School-Enterprise Cooperation Teaching and Education Mode for Computer Majors
8
作者 Zichen Xu 《Journal of Contemporary Educational Research》 2024年第2期144-150,共7页
This paper discusses the innovative methods of school-enterprise cooperation education mode in computer applied talent training.An innovative training model based on school-enterprise cooperation is proposed to promot... This paper discusses the innovative methods of school-enterprise cooperation education mode in computer applied talent training.An innovative training model based on school-enterprise cooperation is proposed to promote the cultivation of students’practical and innovative skills,so as to better adapt to the needs of society.By analyzing the key links and influencing factors of the training mode,this paper puts forward some concrete suggestions and measures to provide guidelines for universities and enterprises in personnel training. 展开更多
关键词 School-enterprise cooperation Computer applied talents Innovative training mode
下载PDF
Optimization Task Scheduling Using Cooperation Search Algorithm for Heterogeneous Cloud Computing Systems 被引量:1
9
作者 Ahmed Y.Hamed M.Kh.Elnahary +1 位作者 Faisal S.Alsubaei Hamdy H.El-Sayed 《Computers, Materials & Continua》 SCIE EI 2023年第1期2133-2148,共16页
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 ... 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. 展开更多
关键词 Heterogeneous processors cooperation search algorithm task scheduling cloud computing
下载PDF
Research on the implementation of the Convention on Biological Diversity among the Shanghai Cooperation Organisation countries
10
作者 HAO Yun WU Miao +2 位作者 ZHANG Xiaoyun WANG Lixian HE Jingjing 《Regional Sustainability》 2023年第3期322-331,共10页
The Shanghai Cooperation Organisation(SCO)is the most extensive and populous comprehensive regional cooperation organization in the world,covering about half of the world's population,with not only a huge consumer... The Shanghai Cooperation Organisation(SCO)is the most extensive and populous comprehensive regional cooperation organization in the world,covering about half of the world's population,with not only a huge consumer market,but also rich natural resources and strong productivity.As one of the important platforms for the implementation of the Green Belt and Road Initiative,it is an important opportunity for the SCO to actively participate in global governance and contribute to building a community of global life.To investigate the status of biodiversity conservation in the SCO countries,we used literature analysis approach.We surveyed the performance and international cooperation status of the SCO countries in the implementation of the Convention on Biological Diversity(CBD),listed facing problems and threats to biodiversity conservation,including not optimistic biodiversity conservation project implementation status,contradiction between ecological protection and economic development,impacts of human activities,lack of funds and talents,etc.,and analyzed the biodiversity protection needs of the SCO countries from the perspectives of project and policy implementation status and international cooperation.According to the cooperation between China and the other SCO countries on biodiversity conservation and the post-2020 global biodiversity framework goals,we gave some recommendations:(1)promoting access to genetic resources and benefit-sharing;(2)integrating multiple funds and innovating the implementation of funding mechanism;(3)developing talent training and exchange programs and deepening multilateral cooperation;(4)strengthening cross-border cooperation and improving cooperation network;and(5)establishing a coordination mechanism for biodiversity conservation within the framework of the SCO. 展开更多
关键词 Shanghai cooperation Organisation(SCO) Biodiversity conservation Convention on Biological Diversity(CBD) International cooperation Cross-border cooperation Multilateral cooperation
下载PDF
Effect of conformity on evolution of cooperation in a coordination game
11
作者 王先甲 王饕 《Chinese Physics B》 SCIE EI CAS CSCD 2023年第10期172-183,共12页
Individual decision-making processes are not solely driven by self-interest maximization but are also influenced by the pressure to conform to the group.In primary games like the prisoner's dilemma,the presence of... Individual decision-making processes are not solely driven by self-interest maximization but are also influenced by the pressure to conform to the group.In primary games like the prisoner's dilemma,the presence of conformity pressure may facilitate the constructive development of cooperative behavior.In this study,we investigate how conformity influences the growth of cooperation in complicated coordination games.Our findings reveal that,even in the presence of stringent game rules,conformity can promote cooperation.In fact,a certain level of conformity pressure can even eliminate the“defection basin”of deer hunting games played on regular networks.Additionally,we demonstrate that the effect of conformity on cooperative behavior is contingent upon the degree of conformity pressure,with different levels of conformity pressure producing opposite effects.These findings provide novel insights into the promotion of cooperative evolution.For instance,if increasing the reward for cooperation has proven ineffective,manipulating the proportion of initial strategy choices may be a more promising approach. 展开更多
关键词 cooperative evolution complex network conformity behavior spatial dynamics
原文传递
Business and IndustryCooperation Between China and Central Asia Marches Forward
12
作者 Lily Wang 《China's Foreign Trade》 2023年第3期8-11,共4页
The China-Central Asia Summit was held in Xi’an,Shaanxi during May 18-19.This was China’s first major home diplomatic event this year and the first on-site summit held between China and the five Central Asian countr... The China-Central Asia Summit was held in Xi’an,Shaanxi during May 18-19.This was China’s first major home diplomatic event this year and the first on-site summit held between China and the five Central Asian countries in the 31 years since the establishment of diplomatic relations.This meeting not only summarized the long-term cooperation achievements between China and Central Asian countries,but also drew up a new blueprint for future cooperation and development. 展开更多
关键词 CENTRAL summarized cooperation
下载PDF
SCO Digital Technology Platform:A New Chapter of Cooperation
13
作者 Liu Xinwei 《China's Foreign Trade》 2023年第5期45-46,共2页
Recently, the Digital Technology Platform of Shanghai Cooperation Organization(SCO)(Платформа цифровых технологии стран ШОС, hereinafter referred to as the platform) was inaugurated,... Recently, the Digital Technology Platform of Shanghai Cooperation Organization(SCO)(Платформа цифровых технологии стран ШОС, hereinafter referred to as the platform) was inaugurated, which, as an international exchange and cooperation platform based on the framework of the SCO, will promote exchanges and cooperation in the field of the digital economy among member states. 展开更多
关键词 PLATFORM BATCH cooperation
下载PDF
Enhance International Cooperation and Reinvigorate the Global Economy
14
作者 Lily Wang 《China's Foreign Trade》 2023年第5期22-25,共4页
The International Finance Forum(IFF)20th Anniversary and Annual Meeting was held recently.This meeting is themed“new capital,new value,new world:revitalization and cooperation under the shattered global economy”.Pol... The International Finance Forum(IFF)20th Anniversary and Annual Meeting was held recently.This meeting is themed“new capital,new value,new world:revitalization and cooperation under the shattered global economy”.Politicians,heads of international institutions,experts and scholars,and business representatives from more than 50 countries and regions discussed topics such as the opportunities and challenges faced by the global economy.Several participants said that the global economy is facing numerous challenges due to a series of negative factors,and that future prospects are not optimistic.There is an urgent need to strengthen cooperation and revitalize the global economy. 展开更多
关键词 cooperation ECONOMY CHALLENGES
下载PDF
Computation Rate Maximization in Multi-User Cooperation-Assisted Wireless-Powered Mobile Edge Computing with OFDMA
15
作者 Xinying Wu Yejun He Asad Saleem 《China Communications》 SCIE CSCD 2023年第1期218-229,共12页
In the era of Internet of Things(Io T),mobile edge computing(MEC)and wireless power transfer(WPT)provide a prominent solution for computation-intensive applications to enhance computation capability and achieve sustai... In the era of Internet of Things(Io T),mobile edge computing(MEC)and wireless power transfer(WPT)provide a prominent solution for computation-intensive applications to enhance computation capability and achieve sustainable energy supply.A wireless-powered mobile edge computing(WPMEC)system consisting of a hybrid access point(HAP)combined with MEC servers and many users is considered in this paper.In particular,a novel multiuser cooperation scheme based on orthogonal frequency division multiple access(OFDMA)is provided to improve the computation performance,where users can split the computation tasks into various parts for local computing,offloading to corresponding helper,and HAP for remote execution respectively with the aid of helper.Specifically,we aim at maximizing the weighted sum computation rate(WSCR)by optimizing time assignment,computation-task allocation,and transmission power at the same time while keeping energy neutrality in mind.We transform the original non-convex optimization problem to a convex optimization problem and then obtain a semi-closed form expression of the optimal solution by considering the convex optimization techniques.Simulation results demonstrate that the proposed multi-user cooperationassisted WPMEC scheme greatly improves the WSCR of all users than the existing schemes.In addition,OFDMA protocol increases the fairness and decreases delay among the users when compared to TDMA protocol. 展开更多
关键词 mobile edge computing(MEC) wireless power transfer(WPT) user cooperation OFDMA convex optimization
下载PDF
High-Quality Cooperation Under the BRI
16
作者 ZHANG YONG WANG XINYUE 《China Today》 2023年第5期60-61,共2页
As an important part of the BRI,energy cooperation is key to realizing the Initiative’s goals.THIS year marks the 10th anniversary of the launching of the Belt and Road Initiative (BRI)as well as the 30th anniversary... As an important part of the BRI,energy cooperation is key to realizing the Initiative’s goals.THIS year marks the 10th anniversary of the launching of the Belt and Road Initiative (BRI)as well as the 30th anniversary of China National Petroleum Corporation’s (CNPC) going global.Since Chinese President Xi Jinping proposed the Initiative in 2013,it has received positive response and support from the international community. 展开更多
关键词 mutual CNPC cooperation
下载PDF
High Quality Development of the Belt and Road Oil&Gas Cooperation in the New Situation
17
作者 Ding Peng Zhang Xiuling 《China Oil & Gas》 CAS 2023年第5期3-9,共7页
Oil&gas cooperation is a key area of the Belt and Road construction.Currently,there have been profound and significant changes in the global political,economic,and oil&gas market landscape.Great power games,Uk... Oil&gas cooperation is a key area of the Belt and Road construction.Currently,there have been profound and significant changes in the global political,economic,and oil&gas market landscape.Great power games,Ukraine crisis,energy transformation,etc.have had a profound impact on the Belt and Road oil&gas cooperation.On the occasion of the 10th anniversary of the Belt and Road initiative,how to promote the high-quality development of oil and gas cooperation in the joint construction of the Belt and Road is the key content to be studied in the future.This article takes CNPC as an example,systematically summarized the basis for high-quality development of CNPC’s the Belt and Road oil&gas cooperation,discussed the connotation of high-quality development of oil&gas cooperation and four suggestions for promoting high-quality development,with a view to providing certain support and guidance to other Chinese enterprises to participate in the Belt and Road energy cooperation. 展开更多
关键词 ROAD CNPC cooperation
下载PDF
Achievements and Challenges Faced by the Belt and Road Energy Cooperation
18
作者 Hou Mingyang Zhang Yaxiong 《China Oil & Gas》 CAS 2023年第5期15-20,共6页
Since General Secretary Xi Jinping proposed the Belt and Road Initiative in 2013,the Belt and Road energy cooperation has achieved fruitful results in the following five aspects:policy coordination,infrastructure conn... Since General Secretary Xi Jinping proposed the Belt and Road Initiative in 2013,the Belt and Road energy cooperation has achieved fruitful results in the following five aspects:policy coordination,infrastructure connectivity,unimpeded trade,financial integration,and people-to-people ties.Looking back on the development over the past decade,the Belt and Road energy cooperation has witnessed mutual benefits and win-win results,openness and shared benefits,innovation and progress,and green and low-carbon development.In the current context of energy transition and escalating energy geopolitical risks,high-quality energy cooperation is beneficial not only for ensuring the energy security of countries along the Belt and Road but also for promoting their green development and improving the well-being of their people.Based on the above understanding,the author has analyzed the following four major challenges faced by high-quality Belt and Road energy cooperation in the future:international politics,geopolitical risks,energy markets,and technological innovation,and put forward relevant suggestions from such five aspects as balance of development and security,incremental market and current market,traditional energy and new energy,technological progress and industrial upgrading,and China’s interests and the welfare of the people in resource-rich countries. 展开更多
关键词 ROAD mutual cooperation
下载PDF
Paths for High-quality Energy Cooperation under the Belt and Road Initiative
19
作者 Yu Xiaozhong Wei Jing +1 位作者 Bai Long Gu Sui 《China Oil & Gas》 CAS 2023年第2期20-27,共8页
The“Belt and Road Initiative”(BRI)has been put forward for ten years,during which energy cooperation has always been a key focus.Driven by energy revolution and China’s economic mode transition,energy cooperation h... The“Belt and Road Initiative”(BRI)has been put forward for ten years,during which energy cooperation has always been a key focus.Driven by energy revolution and China’s economic mode transition,energy cooperation has new characteristics of the era,that is,its quality is getting higher.Based on the goal of“high-quality energy cooperation”,this paper discusses the achievements of energy cooperation among BRI countries over the past ten years,analyzes the existing issues,and focuses on the state,enterprises,financial institutions,and the society to achieve a comprehensive evolution of high-quality energy cooperation through multi-level collaboration. 展开更多
关键词 ROAD enterprises cooperation
下载PDF
China-EU Relations:Cooperation Outweighs Differences
20
作者 ZHANG HUI 《China Today》 2023年第5期16-19,共4页
Restarting dialogue mechanisms in various fields,promoting economic cooperation,and the political settlement of the Ukraine crisis have topped recent high-level China-EU talks’agenda.
关键词 SETTLEMENT cooperation POLITICAL
下载PDF
上一页 1 2 250 下一页 到第
使用帮助 返回顶部