【摘 要】
：
DURING the 2021 China International Fair for Trade in Services(CIFTIS),the digital RMB avenue at the exhibition area for financial services in the Shougang Park attracted a constant stream of visitors.With just a few clicks on a smartphone,visitors could
论文部分内容阅读
DURING the 2021 China International Fair for Trade in Services(CIFTIS),the digital RMB avenue at the exhibition area for financial services in the Shougang Park attracted a constant stream of visitors.With just a few clicks on a smartphone,visitors could
其他文献
THE Mogao Grottoes in Dunhuang,China,began to be built during the reign of Emperor Fu Jian(338-385)of one of the 16 kingdoms in northern China.After construction spanning several dynasties,a sprawling structure was formed,including 735 caves,with 45,000 s
The 2021 China International Fair on Trade in Services(CIFTIS)held last September has drawn worldwide attention.As the largest comprehensive exhibition in the field of global trade in services,the fair sent the world a positive signal for robust recovery
THE global pandemic has not dampened the desire of the international community for exchanges and cooperation.At the 2021 China International Fair for Trade in Services(CIFTIS),foreign exhibitors praised China’s improved business environment and high-quali
针对复杂环境多约束条件下的飞行器末制导问题,提出了一种基于最优控制理论,同时考虑过程约束和终端约束的末制导律设计方法。首先,考虑终端位置、落角和过载需求,基于最优控制理论和Schwartz不等式,建立了过载指令表达式;然后,根据需要对其进行了简化处理,得到了便于应用的表达形式;接着,在建立飞行过载和导引头视角解析表达式并进行分析的基础上,设计了同时考虑过程约束和终端约束的制导参数设计策略;最后,开展了仿真分析,仿真结果表明,所提制导律在满足飞行过程和终端约束的同时,降低了飞行器飞行末段过载需求。
针对多方对抗博弈问题的复杂性和多样性,提出了利用决策树思想对多防御方的目标攻防问题的策略进行决策树分类,再利用决策树分类模型对多防御方的目标攻防问题的攻防策略进行快速决策。首先,对多防御方目标攻防问题利用决策树ID3算法以攻防双方的策略作为类别属性进行分类,得到多防御方目标攻防问题的决策树模型;然后,对多方对抗中的攻击方,基于距离的威胁权重函数得到攻击方的轨迹;最后,得到防御方的协同合作策略,并进行了仿真验证。
THE 2021 World Winter Sports Expo was an essential part of the special exhibition on sports services of the CIFTIS,which gathered resources of the ice&snow industry from various countries around the world,exhibited cutting-edge technologies and achiev
AT the China International Fair for Trade in Services(CIFTIS)held from September 2 to 7 in Beijing,elements of its vision“green,low-carbon,and environmental protection,”can be seen everywhere.In addition to 15 events advocating the vision,such as the“2021
AS an important part of the modern economic system,emerging industries are a reflection of the scientific and technological strength and economic vitality of China at its new stage of development.As the COVID-19 pandemic continues,China is facing a more c
AS a saying goes,“The world’s best wheaten foods are in China,and Shanxi is known for a wide variety of options.”Shanxi Province boasts an extensive and profound culture of making various delicious wheaten foods.Accordingly it has been treated as the land
CHINESE enterprises must attach importance to crossborder compliance if they want to continue to grow into outstanding companies in the process of going global.That’s according to Liu Chao,secretary general of the International Commercial Dispute Preventi