The present paper is focused on the analysis of the European building processes from the historical perspective of federalism (from ethnic federalism to current federalism) applied to the current framework of Europe...The present paper is focused on the analysis of the European building processes from the historical perspective of federalism (from ethnic federalism to current federalism) applied to the current framework of Europeanization and cross-border cooperation in Europe. With the objective of reviewing some of its processes and impacts, an analysis structure has been set, being the main purpose to extract conclusions on the long Europeanization process undertaken by the EU institutions. One of these recent processes reached the consolidation of Euroregions as cross-border cooperation institutions within the framework of multilevel governance. For the main purpose of the paper, the following questions are raised: How has contributed the perspective of federalism to the building of cross-border institutions, namely Euroregions? After three decades of implementation of the formal cooperation in Europe through institutions as the Euroregions, can it be confirmed that the Eurnregions are consolidated as an institutional benchmark within the cross-border cooperation in Europe (CBC-E)? In order to answer these questions, a review of the historic perspective of ethnic federalism applied to the classical models of formal cooperation is undertaken. From this historical revision, the development of the Euroregion within the EU will be analyzed. Finally, the present paper is focused on the case study of the cross-border space that are the Autonomous Region of Galician and the Regiao Norte de Portugal, as well as its most important cooperative institution, the Euro-region Galicia-North Portugal.展开更多
This study is being carried out in the cross-border area of </span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-fam...This study is being carried out in the cross-border area of </span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">the tri-national Dja-Odzala-Minkébé (TRIDOM), subject of a cooperation agreement between Cameroon, Congo a</span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">nd Gabon in 2005. The purpose of this study is to analyze the dynamics of changes in land use in the context of cross-border cooperation. Geographic information systems and remote sensing were used to produce the various land use maps. For this purpose, the MERIS satellite images for the periods 1992, 2005 and 2018 were used. The exploration of the different images and the field visits made it possible to identify the following six land use classes: dense forests, degraded/deforested forests, savannas, swamp forests, buildings and bare soils, water surfaces. It emerges that the TRIDOM landscape is mainly occupied by dense forests which represent 97.02%, 96.72% and 96.52% respectively in 1992, 2005 and 2018. Then, degraded/deforested forests and savannas which would correspond to cultivation areas and fallow land only represent respectively 1.06% and 0.68% of the landscape in 1992. This proportion in 2005 is respectively 1.22% and 0.77%, whereas in 2018, it is respectively 1.36% and 0.81% of the massif. The landscape of TRIDOM has not experienced any significant land use change during the period after the signing of the cooperation agreement. Historical rates of deforestation are low during the period under study. They are estimated at 0.042% and 0.030% respectively for the period 1992-2005 and the period 2005-2018. These low rates of deforestation seem to be due to the measures taken to secure and sustainably manage the massif taken by the three countries, the low population density in this area and the still difficult level of accessibility of a large part of the massif.展开更多
Partial cooperation models are studied for many years to solve the bilevel programming problems where the follower’s optimal reaction is not unique. However, in these existed models, the follower’s cooperation level...Partial cooperation models are studied for many years to solve the bilevel programming problems where the follower’s optimal reaction is not unique. However, in these existed models, the follower’s cooperation level does not depend on the leader’s decision. A new model is proposed to solve this deficiency. It is proved the feasibility of the new model when the reaction set of the lower level is lower semicontinuous. And the numerical results show that the new model has optimal solutions when the reaction set of the lower level is discrete, lower semi-continuous and non-lower semi-continuous.展开更多
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 restriction...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.展开更多
Take Chinese yew cooperative organization for example,different game structures of forestry cooperation model were analyzed,the elative merit and applicable occasion was discussed combined with empirical investigation...Take Chinese yew cooperative organization for example,different game structures of forestry cooperation model were analyzed,the elative merit and applicable occasion was discussed combined with empirical investigation,and some suggestions were given also.The results showed that depending entirely on normal forest farmers cooperate spontaneously is difficult.Policies should be designed from the perspective of promoted village cadres and influential family salons to cooperation.When market factors become the main obstacle,it is necessary to introduce companies,relax constraints of forest management and build the right market atmosphere.According to unequal status of company and forest farmers,develop the cooperation model of " company + cooperation organization + farmers".In certain circumstances,especially there are several companies vicious competition,the intervention of association can play a coordinating role.展开更多
The cooperation models appeared in the process of tomato industrialization in Xinjiang include orders,intermediary agencies and workshops.The cooperation content,the closeness and the cooperation stability of these mo...The cooperation models appeared in the process of tomato industrialization in Xinjiang include orders,intermediary agencies and workshops.The cooperation content,the closeness and the cooperation stability of these models are different from each other.From the local to the Corps in Xinjiang,the cooperation model has undergone corresponding changes.The internal interest mechanism,the constriant mechanism and the protection mechanism have also undergone some changes.In order to make a breakthrough in tomato industrialization in Xinjiang,the cooperation model should be changed from the loose and semi-compact type to the high-compact type.The interest mechanism,the constriant mechanism and the protection mechanism between farmers and companies will be strengthened.展开更多
In this article,lane change models for mixed traffic flow under cooperative adaptive cruise control(CACC)platoon formation are established.The analysis begins by examining the impact of lane changes on traffic flow st...In this article,lane change models for mixed traffic flow under cooperative adaptive cruise control(CACC)platoon formation are established.The analysis begins by examining the impact of lane changes on traffic flow stability.The influences of various factors such as lane change locations,timing,and the current traffic state on stability are discussed.In this analysis,it is assumed that the lane change location and the entry position in the adjacent lane have already been selected,without considering the specific intention behind the lane change.The speeds of the involved vehicles are adjusted based on an existing lane change model,and various conditions are analyzed for traffic flow disturbances,including duration,shock amplitude,and driving delays.Numerical calculations are provided to illustrate these effects.Additionally,traffic flow stability is factored into the lane change decision-making process.By incorporating disturbances to the fleet into the lane change income model,both a lane change intention model and a lane change execution model are constructed.These models are then compared with a model that does not account for stability,leading to the corresponding conclusions.展开更多
In the photogrammetry,some researchers have applied genetic algorithms in aerial image texture classification and reducing hyper_spectrum remote sensing data.Genetic algorithm can rapidly find the solutions which are ...In the photogrammetry,some researchers have applied genetic algorithms in aerial image texture classification and reducing hyper_spectrum remote sensing data.Genetic algorithm can rapidly find the solutions which are close to the optimal solution.But it is not easy to find the optimal solution.In order to solve the problem,a cooperative evolution idea integrating genetic algorithm and ant colony algorithm is presented in this paper.On the basis of the advantages of ant colony algorithm,this paper proposes the method integrating genetic algorithms and ant colony algorithm to overcome the drawback of genetic algorithms.Moreover,the paper takes designing texture classification masks of aerial images as an example to illustrate the integration theory and procedures.展开更多
In order to get an acceptable interests-distribution scheme for each partner of enterprise-university-research institute cooperation in advance,based on Nash model,the paper designs the interest distribution method of...In order to get an acceptable interests-distribution scheme for each partner of enterprise-university-research institute cooperation in advance,based on Nash model,the paper designs the interest distribution method of enterprise-university-research institute cooperation and provides the basis for determining the weight of each partner in accordance with the interest distribution principles and subjected relations between major factors in enterprise-university-research institute cooperation.Also,in combination with one example,an applicable method is provided to distribute interest in enterprise-university-research institute cooperation.The study gives some references for interests-distribution of enterprise-university-research institute cooperation.展开更多
The purpose of this study is to explore the business model for a cross-border watch company in the virtual market.The virtual market in this research focuses on mobile app devices and social communities.In the e-comme...The purpose of this study is to explore the business model for a cross-border watch company in the virtual market.The virtual market in this research focuses on mobile app devices and social communities.In the e-commerce market,the company uses community marketing and cross-border e-commerce to enhance its merchandise sales.In-depth interviews are applied to e-commerce platform experts.The findings suggest that the successful business model includes a clear brand positioning,exposure to social media channels,enhance of the webpage experience,and optimization of global cross-border e-commerce purchasing platform.展开更多
Imports of cross-border E-business are rising quickly,and cross-border online shopping is getting more and more popular.Besides newcomers like Ymatou,wgyp.com,Xiaohongshu,yunhou.com,metao.com,Haojiemi,and smzdm.com,Tm...Imports of cross-border E-business are rising quickly,and cross-border online shopping is getting more and more popular.Besides newcomers like Ymatou,wgyp.com,Xiaohongshu,yunhou.com,metao.com,Haojiemi,and smzdm.com,Tmall,Jingdong,Suning,the Amazon,jumei.com,yhd.com,Vipshop and other established domestic E-business enterprises are also attracted and actively involved in this booming business sector.Recently,the China展开更多
Everyone is surrounded by crisis just like the air we breathe at every moment;therefore, all countries, organizations and person are confronted with the risk challenges. Nowadays, the human society has evolved to a re...Everyone is surrounded by crisis just like the air we breathe at every moment;therefore, all countries, organizations and person are confronted with the risk challenges. Nowadays, the human society has evolved to a relatively advanced stage, and along with society progress, complicated social relationship and environment will result in more dangerous elements, thus bringing in more risks. This paper introduces the public security crisis management model based on diversified cooperation in detail from the concept of public security crisis and puts forward safeguard mechanism construction for enhancing the crisis management under diversified cooperation in a brief manner, thus improving the efficiency of crisis management under diversified cooperation.展开更多
On July 4th,2016,China COSCO Shipping Corporation Limited('COSCO SHIPPING'or'the Group')and the Hellenic Republic Asset Development Fund(HRADF)signed a letter in Beijing,confirming that the conditions ...On July 4th,2016,China COSCO Shipping Corporation Limited('COSCO SHIPPING'or'the Group')and the Hellenic Republic Asset Development Fund(HRADF)signed a letter in Beijing,confirming that the conditions defined in the previously signed Share Purchase Agreement(SPA)have been fulfilled.It marks a decisive achievement for COSCO SHIPPING’S展开更多
The introduction of automated driving systems raised questions about how the human driver interacts with the automated system. Non-cooperative game theory is increasingly used for modelling and understanding such inte...The introduction of automated driving systems raised questions about how the human driver interacts with the automated system. Non-cooperative game theory is increasingly used for modelling and understanding such interaction, while its counterpart, cooperative game theory is rarely discussed for similar applications despite it may be potentially more suitable. This paper describes the modelling of a human driver’s steering interaction with an automated steering system using cooperative game theory. The distributed Model Predictive Control approach is adopted to derive the driver’s and the automated steering system’s strategies in a Pareto equilibrium sense, namely their cooperative Pareto steering strategies. Two separate numerical studies are carried out to study the influence of strategy parameters, and the influence of strategy types on the driver’s and the automated system’s steering performance. It is found that when a driver interacts with an automated steering system using a cooperative Pareto steering strategy, the driver can improve his/her performance in following a target path through increasing his/her effort in pursuing his/her own interest under the driver-automation cooperative control goal. It is also found that a driver’s adoption of cooperative Pareto steering strategy leads to a reinforcement in the driver’s steering angle control, compared to the driver’s adoption of non-cooperative Nash strategy. This in turn enables the vehicle to return from a lane-change maneuver to straight-line driving swifter.展开更多
Aiming at the problem on cooperative air-defense of surface warship formation, this paper maps the cooperative airdefense system of systems (SoS) for surface warship formation (CASoSSWF) to the biological immune s...Aiming at the problem on cooperative air-defense of surface warship formation, this paper maps the cooperative airdefense system of systems (SoS) for surface warship formation (CASoSSWF) to the biological immune system (BIS) according to the similarity of the defense mechanism and characteristics between the CASoSSWF and the BIS, and then designs the models of components and the architecture for a monitoring agent, a regulating agent, a killer agent, a pre-warning agent and a communicating agent by making use of the theories and methods of the artificial immune system, the multi-agent system (MAS), the vaccine and the danger theory (DT). Moreover a new immune multi-agent model using vaccine based on DT (IMMUVBDT) for the cooperative air-defense SoS is advanced. The immune response and immune mechanism of the CASoSSWF are analyzed. The model has a capability of memory, evolution, commendable dynamic environment adaptability and self-learning, and embodies adequately the cooperative air-defense mechanism for the CASoSSWF. Therefore it shows a novel idea for the CASoSSWF which can provide conception models for a surface warship formation operation simulation system.展开更多
The dislocation between regional innovation and economic development directly influences the economic effect of regional innovation. However, no in-depth researches have been made on how to solve this problem. Using d...The dislocation between regional innovation and economic development directly influences the economic effect of regional innovation. However, no in-depth researches have been made on how to solve this problem. Using data from Henan Province, China,employing geographical detector technology, this paper focuses on testing whether the industry-university-research cooperation can contribute to coordinating the relation between regional innovation and economic development. It is shown that: 1) the industry-universityresearch cooperation in Henan Province is increasing gradually, and the network presents a core-edge structure, and the coupling degree between regional innovation and economic development is spatially unbalanced, which is similar to the spatial distribution of the intensity of industry-university-research cooperation;2) as an important approach to effectively connect scientific researches with market demands, the industry-university-research cooperation can help form an interactive, interconnected, coupled and coordinated virtuous relation between regional innovation and economic development. Compared with the cooperation between organizations of the same type and the separate innovation of organizations, the improvement of the industry-university-research cooperation level can better coordinate the relation between regional innovation and economic development;3) the cooperative innovation model between enterprises and universities can better promote the coupling between regional innovation and economic development, compared with many industryuniversity-research cooperation models. For underdeveloped areas lacking local knowledge base, industry-university-research cooperation should be considered as a long-term development strategy, especially using the knowledge sources of external universities and scientific research institutions to enhance innovation capability and achieve economic growth.展开更多
In order to analyze the stability impact of cooperative adaptive cruise control (CACC) platoon, an adaptive control model designed for the lead vehicle in a CACC platoon (LCACC model) in heterogeneous traffic flow...In order to analyze the stability impact of cooperative adaptive cruise control (CACC) platoon, an adaptive control model designed for the lead vehicle in a CACC platoon (LCACC model) in heterogeneous traffic flow with both CACC and manual vehicles is proposed. Considering the communication delay of a CACC platoon, a frequency-domain approach is taken to analyze the stability conditions of the novel lead-vehicle CACC model. Field trajectory data from the next-generation simulation (NGSIM) data is used as the initial condition. To account for car- following behaviors in reality, an intelligent driver model (IDM) is calibrated with the same NGSIM dataset from a previous study to model manual vehicles. The stability conditions of the proposed model are validated by the ring- road stability analysis. The ring-road test results indicate the potential of the LCACC model for improving the traffic flow stability impact of CACC platoons. Sensitivity analysis shows that the CACC fleet size has impact on the parameters of the LCACC model.展开更多
In this paper, a three-dimensional(3D) geometry- based stochastic scattering model(GBSSM) for wideband multi-input multi-output(MIMO) vehicle-to-vehicle(V2V) relay-based cooperative fading channel based on geometrical...In this paper, a three-dimensional(3D) geometry- based stochastic scattering model(GBSSM) for wideband multi-input multi-output(MIMO) vehicle-to-vehicle(V2V) relay-based cooperative fading channel based on geometrical three-cylinder is proposed. Non-line-of-sight(NLOS) propagation condition is assumed in amplify-and-forward(AF) cooperative networks from the source mobile station(S) to the destination mobile station(D) via the mobile relay station(R). We extend the proposed narrowband model to wideband and also introduce the carrier frequency and bandwidth into the model. To avoid complicated procedure in deriving the analytical expressions of the channel parameters and functions, the channel is realized first. By using the realized channel matrix, the channel properties are further investigated.展开更多
In recent years,while the traditional trade sectors have been shrinking,China’s cross-border e-commerce has undergone rapid development and has become a new driver of its international trade.Based on analysis of the ...In recent years,while the traditional trade sectors have been shrinking,China’s cross-border e-commerce has undergone rapid development and has become a new driver of its international trade.Based on analysis of the evolution pattern of China’s cross-border e-commerce,this paper uses a revised gravity model to test empirically the driving factors and the resistance factors in the development of the country’s cross-border e-commerce.The results show that the total GDP,per capita disposable income of urban residents,total imports and exports,and the scale of the online shopping market have a positive relationship with cross-border e-commerce transactions,which are conducive to the development of cross-border e-commerce,while logistics costs inhibit the development of cross-border e-commerce.Accordingly,the paper puts forward several policy recommendations.展开更多
For the case that two pursuers intercept an evasive target,the cooperative strategies and state estimation methods taken by pursuers can seriously affect the guidance accuracy for the target,which performs a bang For ...For the case that two pursuers intercept an evasive target,the cooperative strategies and state estimation methods taken by pursuers can seriously affect the guidance accuracy for the target,which performs a bang For the case that two pursuers intercept an evasive target,the cooperative strategies and state estimation methods taken by pursuers can seriously affect the guidance accuracy for the target,which performs a bang-bang evasive maneuver with a random switching time.Combined Fast multiple model adaptive estimation(Fast MMAE)algorithm,the cooperative guidance law takes detection configuration affecting the accuracy of interception into consideration.Introduced the detection error model related to the line-of-sight(LOS)separation angle of two interceptors,an optimal cooperative guidance law solving the optimization problem is designed to modulate the LOS separation angle to reduce the estimation error and improve the interception performance.Due to the uncertainty of the target bang-bang maneuver switching time and the effective fitting of its multi-modal motion,Fast MMAE is introduced to identify its maneuver switching time and estimate the acceleration of the target to track and intercept the target accurately.The designed cooperative optimal guidance law with Fast MMAE has better estimation ability and interception performance than the traditional guidance law and estimation method via Monte Carlo simulation.展开更多
文摘The present paper is focused on the analysis of the European building processes from the historical perspective of federalism (from ethnic federalism to current federalism) applied to the current framework of Europeanization and cross-border cooperation in Europe. With the objective of reviewing some of its processes and impacts, an analysis structure has been set, being the main purpose to extract conclusions on the long Europeanization process undertaken by the EU institutions. One of these recent processes reached the consolidation of Euroregions as cross-border cooperation institutions within the framework of multilevel governance. For the main purpose of the paper, the following questions are raised: How has contributed the perspective of federalism to the building of cross-border institutions, namely Euroregions? After three decades of implementation of the formal cooperation in Europe through institutions as the Euroregions, can it be confirmed that the Eurnregions are consolidated as an institutional benchmark within the cross-border cooperation in Europe (CBC-E)? In order to answer these questions, a review of the historic perspective of ethnic federalism applied to the classical models of formal cooperation is undertaken. From this historical revision, the development of the Euroregion within the EU will be analyzed. Finally, the present paper is focused on the case study of the cross-border space that are the Autonomous Region of Galician and the Regiao Norte de Portugal, as well as its most important cooperative institution, the Euro-region Galicia-North Portugal.
文摘This study is being carried out in the cross-border area of </span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">the tri-national Dja-Odzala-Minkébé (TRIDOM), subject of a cooperation agreement between Cameroon, Congo a</span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">nd Gabon in 2005. The purpose of this study is to analyze the dynamics of changes in land use in the context of cross-border cooperation. Geographic information systems and remote sensing were used to produce the various land use maps. For this purpose, the MERIS satellite images for the periods 1992, 2005 and 2018 were used. The exploration of the different images and the field visits made it possible to identify the following six land use classes: dense forests, degraded/deforested forests, savannas, swamp forests, buildings and bare soils, water surfaces. It emerges that the TRIDOM landscape is mainly occupied by dense forests which represent 97.02%, 96.72% and 96.52% respectively in 1992, 2005 and 2018. Then, degraded/deforested forests and savannas which would correspond to cultivation areas and fallow land only represent respectively 1.06% and 0.68% of the landscape in 1992. This proportion in 2005 is respectively 1.22% and 0.77%, whereas in 2018, it is respectively 1.36% and 0.81% of the massif. The landscape of TRIDOM has not experienced any significant land use change during the period after the signing of the cooperation agreement. Historical rates of deforestation are low during the period under study. They are estimated at 0.042% and 0.030% respectively for the period 1992-2005 and the period 2005-2018. These low rates of deforestation seem to be due to the measures taken to secure and sustainably manage the massif taken by the three countries, the low population density in this area and the still difficult level of accessibility of a large part of the massif.
基金supported by the National Natural Science Foundationof China (70771080)the National Science Foundation of Hubei Province(20091107)Hubei Province Key Laboratory of Systems Science in Metallurgical Process (B201003)
文摘Partial cooperation models are studied for many years to solve the bilevel programming problems where the follower’s optimal reaction is not unique. However, in these existed models, the follower’s cooperation level does not depend on the leader’s decision. A new model is proposed to solve this deficiency. It is proved the feasibility of the new model when the reaction set of the lower level is lower semicontinuous. And the numerical results show that the new model has optimal solutions when the reaction set of the lower level is discrete, lower semi-continuous and non-lower semi-continuous.
基金supported by the National Nature Science Foundation of China (61590924,61673273,61833012)
文摘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.
基金Supported by the Youth Program of Humanities of Education Department(12YJCZH273,11YJCZH199)Humanity Planning Program of Education Department(12YJA790003)
文摘Take Chinese yew cooperative organization for example,different game structures of forestry cooperation model were analyzed,the elative merit and applicable occasion was discussed combined with empirical investigation,and some suggestions were given also.The results showed that depending entirely on normal forest farmers cooperate spontaneously is difficult.Policies should be designed from the perspective of promoted village cadres and influential family salons to cooperation.When market factors become the main obstacle,it is necessary to introduce companies,relax constraints of forest management and build the right market atmosphere.According to unequal status of company and forest farmers,develop the cooperation model of " company + cooperation organization + farmers".In certain circumstances,especially there are several companies vicious competition,the intervention of association can play a coordinating role.
基金Supported by Major Tenders of National Social Science Funds(07&ZD026)
文摘The cooperation models appeared in the process of tomato industrialization in Xinjiang include orders,intermediary agencies and workshops.The cooperation content,the closeness and the cooperation stability of these models are different from each other.From the local to the Corps in Xinjiang,the cooperation model has undergone corresponding changes.The internal interest mechanism,the constriant mechanism and the protection mechanism have also undergone some changes.In order to make a breakthrough in tomato industrialization in Xinjiang,the cooperation model should be changed from the loose and semi-compact type to the high-compact type.The interest mechanism,the constriant mechanism and the protection mechanism between farmers and companies will be strengthened.
文摘In this article,lane change models for mixed traffic flow under cooperative adaptive cruise control(CACC)platoon formation are established.The analysis begins by examining the impact of lane changes on traffic flow stability.The influences of various factors such as lane change locations,timing,and the current traffic state on stability are discussed.In this analysis,it is assumed that the lane change location and the entry position in the adjacent lane have already been selected,without considering the specific intention behind the lane change.The speeds of the involved vehicles are adjusted based on an existing lane change model,and various conditions are analyzed for traffic flow disturbances,including duration,shock amplitude,and driving delays.Numerical calculations are provided to illustrate these effects.Additionally,traffic flow stability is factored into the lane change decision-making process.By incorporating disturbances to the fleet into the lane change income model,both a lane change intention model and a lane change execution model are constructed.These models are then compared with a model that does not account for stability,leading to the corresponding conclusions.
文摘In the photogrammetry,some researchers have applied genetic algorithms in aerial image texture classification and reducing hyper_spectrum remote sensing data.Genetic algorithm can rapidly find the solutions which are close to the optimal solution.But it is not easy to find the optimal solution.In order to solve the problem,a cooperative evolution idea integrating genetic algorithm and ant colony algorithm is presented in this paper.On the basis of the advantages of ant colony algorithm,this paper proposes the method integrating genetic algorithms and ant colony algorithm to overcome the drawback of genetic algorithms.Moreover,the paper takes designing texture classification masks of aerial images as an example to illustrate the integration theory and procedures.
基金Sponsored by the National Natural Science Foundation of China(Grant No.70473020)the Science and Technology Research Project of Heilongjiang Province(Grant No.GC04D404)the Science and Technology Research Project(Soft Science) of Harbin(Grant No.2006AA9CT189).
文摘In order to get an acceptable interests-distribution scheme for each partner of enterprise-university-research institute cooperation in advance,based on Nash model,the paper designs the interest distribution method of enterprise-university-research institute cooperation and provides the basis for determining the weight of each partner in accordance with the interest distribution principles and subjected relations between major factors in enterprise-university-research institute cooperation.Also,in combination with one example,an applicable method is provided to distribute interest in enterprise-university-research institute cooperation.The study gives some references for interests-distribution of enterprise-university-research institute cooperation.
文摘The purpose of this study is to explore the business model for a cross-border watch company in the virtual market.The virtual market in this research focuses on mobile app devices and social communities.In the e-commerce market,the company uses community marketing and cross-border e-commerce to enhance its merchandise sales.In-depth interviews are applied to e-commerce platform experts.The findings suggest that the successful business model includes a clear brand positioning,exposure to social media channels,enhance of the webpage experience,and optimization of global cross-border e-commerce purchasing platform.
文摘Imports of cross-border E-business are rising quickly,and cross-border online shopping is getting more and more popular.Besides newcomers like Ymatou,wgyp.com,Xiaohongshu,yunhou.com,metao.com,Haojiemi,and smzdm.com,Tmall,Jingdong,Suning,the Amazon,jumei.com,yhd.com,Vipshop and other established domestic E-business enterprises are also attracted and actively involved in this booming business sector.Recently,the China
文摘Everyone is surrounded by crisis just like the air we breathe at every moment;therefore, all countries, organizations and person are confronted with the risk challenges. Nowadays, the human society has evolved to a relatively advanced stage, and along with society progress, complicated social relationship and environment will result in more dangerous elements, thus bringing in more risks. This paper introduces the public security crisis management model based on diversified cooperation in detail from the concept of public security crisis and puts forward safeguard mechanism construction for enhancing the crisis management under diversified cooperation in a brief manner, thus improving the efficiency of crisis management under diversified cooperation.
文摘On July 4th,2016,China COSCO Shipping Corporation Limited('COSCO SHIPPING'or'the Group')and the Hellenic Republic Asset Development Fund(HRADF)signed a letter in Beijing,confirming that the conditions defined in the previously signed Share Purchase Agreement(SPA)have been fulfilled.It marks a decisive achievement for COSCO SHIPPING’S
文摘The introduction of automated driving systems raised questions about how the human driver interacts with the automated system. Non-cooperative game theory is increasingly used for modelling and understanding such interaction, while its counterpart, cooperative game theory is rarely discussed for similar applications despite it may be potentially more suitable. This paper describes the modelling of a human driver’s steering interaction with an automated steering system using cooperative game theory. The distributed Model Predictive Control approach is adopted to derive the driver’s and the automated steering system’s strategies in a Pareto equilibrium sense, namely their cooperative Pareto steering strategies. Two separate numerical studies are carried out to study the influence of strategy parameters, and the influence of strategy types on the driver’s and the automated system’s steering performance. It is found that when a driver interacts with an automated steering system using a cooperative Pareto steering strategy, the driver can improve his/her performance in following a target path through increasing his/her effort in pursuing his/her own interest under the driver-automation cooperative control goal. It is also found that a driver’s adoption of cooperative Pareto steering strategy leads to a reinforcement in the driver’s steering angle control, compared to the driver’s adoption of non-cooperative Nash strategy. This in turn enables the vehicle to return from a lane-change maneuver to straight-line driving swifter.
文摘Aiming at the problem on cooperative air-defense of surface warship formation, this paper maps the cooperative airdefense system of systems (SoS) for surface warship formation (CASoSSWF) to the biological immune system (BIS) according to the similarity of the defense mechanism and characteristics between the CASoSSWF and the BIS, and then designs the models of components and the architecture for a monitoring agent, a regulating agent, a killer agent, a pre-warning agent and a communicating agent by making use of the theories and methods of the artificial immune system, the multi-agent system (MAS), the vaccine and the danger theory (DT). Moreover a new immune multi-agent model using vaccine based on DT (IMMUVBDT) for the cooperative air-defense SoS is advanced. The immune response and immune mechanism of the CASoSSWF are analyzed. The model has a capability of memory, evolution, commendable dynamic environment adaptability and self-learning, and embodies adequately the cooperative air-defense mechanism for the CASoSSWF. Therefore it shows a novel idea for the CASoSSWF which can provide conception models for a surface warship formation operation simulation system.
基金Under the auspices of National Natural Science Foundation of China (No. 41971222)Key R&D (Science and Technology)+2 种基金Promotion Project of Henan Province (No. 222102110420)Key Research Project of Higher Education Think Tank in Henan Province (No. 2022ZKYJ06)Science and Technology Innovative Team Support Plan Project in Higher Educational Institutions of Henan Province (No. 21IRTSTHN008)。
文摘The dislocation between regional innovation and economic development directly influences the economic effect of regional innovation. However, no in-depth researches have been made on how to solve this problem. Using data from Henan Province, China,employing geographical detector technology, this paper focuses on testing whether the industry-university-research cooperation can contribute to coordinating the relation between regional innovation and economic development. It is shown that: 1) the industry-universityresearch cooperation in Henan Province is increasing gradually, and the network presents a core-edge structure, and the coupling degree between regional innovation and economic development is spatially unbalanced, which is similar to the spatial distribution of the intensity of industry-university-research cooperation;2) as an important approach to effectively connect scientific researches with market demands, the industry-university-research cooperation can help form an interactive, interconnected, coupled and coordinated virtuous relation between regional innovation and economic development. Compared with the cooperation between organizations of the same type and the separate innovation of organizations, the improvement of the industry-university-research cooperation level can better coordinate the relation between regional innovation and economic development;3) the cooperative innovation model between enterprises and universities can better promote the coupling between regional innovation and economic development, compared with many industryuniversity-research cooperation models. For underdeveloped areas lacking local knowledge base, industry-university-research cooperation should be considered as a long-term development strategy, especially using the knowledge sources of external universities and scientific research institutions to enhance innovation capability and achieve economic growth.
基金The National High Technology Research and Development Program of China(863 Program)(No.2011AA110405)
文摘In order to analyze the stability impact of cooperative adaptive cruise control (CACC) platoon, an adaptive control model designed for the lead vehicle in a CACC platoon (LCACC model) in heterogeneous traffic flow with both CACC and manual vehicles is proposed. Considering the communication delay of a CACC platoon, a frequency-domain approach is taken to analyze the stability conditions of the novel lead-vehicle CACC model. Field trajectory data from the next-generation simulation (NGSIM) data is used as the initial condition. To account for car- following behaviors in reality, an intelligent driver model (IDM) is calibrated with the same NGSIM dataset from a previous study to model manual vehicles. The stability conditions of the proposed model are validated by the ring- road stability analysis. The ring-road test results indicate the potential of the LCACC model for improving the traffic flow stability impact of CACC platoons. Sensitivity analysis shows that the CACC fleet size has impact on the parameters of the LCACC model.
基金supported by the open research fund of National Mobile Communications Research Laboratory, Southeast University (No. 2016D09)National Nature Science Foundation of China (NSFC) under grant No. 61372051
文摘In this paper, a three-dimensional(3D) geometry- based stochastic scattering model(GBSSM) for wideband multi-input multi-output(MIMO) vehicle-to-vehicle(V2V) relay-based cooperative fading channel based on geometrical three-cylinder is proposed. Non-line-of-sight(NLOS) propagation condition is assumed in amplify-and-forward(AF) cooperative networks from the source mobile station(S) to the destination mobile station(D) via the mobile relay station(R). We extend the proposed narrowband model to wideband and also introduce the carrier frequency and bandwidth into the model. To avoid complicated procedure in deriving the analytical expressions of the channel parameters and functions, the channel is realized first. By using the realized channel matrix, the channel properties are further investigated.
基金supported by the National Social Science Foundation General Program (12BJY009)the National Natural Science Foundation (71673087)Shanghai Municipal Philosophy and Social Sciences Planning General Program (2018BJB025)
文摘In recent years,while the traditional trade sectors have been shrinking,China’s cross-border e-commerce has undergone rapid development and has become a new driver of its international trade.Based on analysis of the evolution pattern of China’s cross-border e-commerce,this paper uses a revised gravity model to test empirically the driving factors and the resistance factors in the development of the country’s cross-border e-commerce.The results show that the total GDP,per capita disposable income of urban residents,total imports and exports,and the scale of the online shopping market have a positive relationship with cross-border e-commerce transactions,which are conducive to the development of cross-border e-commerce,while logistics costs inhibit the development of cross-border e-commerce.Accordingly,the paper puts forward several policy recommendations.
基金This work was supported by the National Natural Science Foundation(NNSF)of China under grant no.61673386,62073335the China Postdoctoral Science Foundation(2017M613201,2019T120944).
文摘For the case that two pursuers intercept an evasive target,the cooperative strategies and state estimation methods taken by pursuers can seriously affect the guidance accuracy for the target,which performs a bang For the case that two pursuers intercept an evasive target,the cooperative strategies and state estimation methods taken by pursuers can seriously affect the guidance accuracy for the target,which performs a bang-bang evasive maneuver with a random switching time.Combined Fast multiple model adaptive estimation(Fast MMAE)algorithm,the cooperative guidance law takes detection configuration affecting the accuracy of interception into consideration.Introduced the detection error model related to the line-of-sight(LOS)separation angle of two interceptors,an optimal cooperative guidance law solving the optimization problem is designed to modulate the LOS separation angle to reduce the estimation error and improve the interception performance.Due to the uncertainty of the target bang-bang maneuver switching time and the effective fitting of its multi-modal motion,Fast MMAE is introduced to identify its maneuver switching time and estimate the acceleration of the target to track and intercept the target accurately.The designed cooperative optimal guidance law with Fast MMAE has better estimation ability and interception performance than the traditional guidance law and estimation method via Monte Carlo simulation.