随着人类对宇宙太空的深入探索,对于提供能量的电源要求也在逐步提高,空间核反应堆电源在执行深空探测任务中脱颖而出。热管核反应堆由于具备非能动性、寿期长、可靠性高等优势,成为目前空间核反应堆领域的研究热点。本文通过重点介绍...随着人类对宇宙太空的深入探索,对于提供能量的电源要求也在逐步提高,空间核反应堆电源在执行深空探测任务中脱颖而出。热管核反应堆由于具备非能动性、寿期长、可靠性高等优势,成为目前空间核反应堆领域的研究热点。本文通过重点介绍典型热管堆的概念设计系统以及在Kilopower中的应用,对热管电源系统(Heatpipe Power System,HPS)、由热管控制的火星探索反应堆(The Heatpipe-operated Mars Exploration Reactor,HOMER)、安全可负担裂变引擎方案(Safe Affordable Fission Engine,SAFE)以及Kilopower进行了重点调研,归纳总结了各个反应堆的结构设计、燃料选择、热管排布、功率设计等,以期对未来热管空间核反应堆电源的设计研究提供思路和参考。展开更多
The e-commerce standard internationalization has become the strategic targets of China’s digital economy.This paper proposes the system dynamics model through analyzing the internal and external factors of e-commerce...The e-commerce standard internationalization has become the strategic targets of China’s digital economy.This paper proposes the system dynamics model through analyzing the internal and external factors of e-commerce standard internationalization under dynamic mechanism.The internationalization trend of China’s e-commerce standard is simulated by Vensim under adjusting economy factor,policy support factor,technical-innovation factor and industry supply chain’s service factor.The experiment results show that China’s international leadership on e-commerce and its influence on standard internationalization from the top-level design,strengthen industry supply chain’s standard certification and the technical-innovation of product standard factors,which can promote the high quality made-in-China brand.展开更多
文摘随着人类对宇宙太空的深入探索,对于提供能量的电源要求也在逐步提高,空间核反应堆电源在执行深空探测任务中脱颖而出。热管核反应堆由于具备非能动性、寿期长、可靠性高等优势,成为目前空间核反应堆领域的研究热点。本文通过重点介绍典型热管堆的概念设计系统以及在Kilopower中的应用,对热管电源系统(Heatpipe Power System,HPS)、由热管控制的火星探索反应堆(The Heatpipe-operated Mars Exploration Reactor,HOMER)、安全可负担裂变引擎方案(Safe Affordable Fission Engine,SAFE)以及Kilopower进行了重点调研,归纳总结了各个反应堆的结构设计、燃料选择、热管排布、功率设计等,以期对未来热管空间核反应堆电源的设计研究提供思路和参考。
基金supported by the Zhejiang Provincial Philosophy and Social Science Planning Project of China(Grant No.20NDJC096YB)the National Key Research and Development Project of China(Grant No.2017YFF0209600)
文摘The e-commerce standard internationalization has become the strategic targets of China’s digital economy.This paper proposes the system dynamics model through analyzing the internal and external factors of e-commerce standard internationalization under dynamic mechanism.The internationalization trend of China’s e-commerce standard is simulated by Vensim under adjusting economy factor,policy support factor,technical-innovation factor and industry supply chain’s service factor.The experiment results show that China’s international leadership on e-commerce and its influence on standard internationalization from the top-level design,strengthen industry supply chain’s standard certification and the technical-innovation of product standard factors,which can promote the high quality made-in-China brand.
