Based on landscaping practices in the stereo landscape demonstration project of Chongqing Academy of Science and Technology (CAST),current management and maintenance of the stereo landscapes were introduced by analyzi...Based on landscaping practices in the stereo landscape demonstration project of Chongqing Academy of Science and Technology (CAST),current management and maintenance of the stereo landscapes were introduced by analyzing maintenance and management of the plants in the stereo landscape forest.The maintenance and management models were summarized according to the management styles,concrete measures and new technologies were studied,laws and key points for the maintenance and management in different seasons were given,and finally deficiencies and solutions were proposed to improve the future maintenance and management.展开更多
The author uses system analysis to provide system thinkings of the deepening reform of the management of defence science, technology and industry (DSTI) and investigate the system definition of DSTI, the system reform...The author uses system analysis to provide system thinkings of the deepening reform of the management of defence science, technology and industry (DSTI) and investigate the system definition of DSTI, the system reform target, system operational mechanism, institutional structure, coordination and control functions and the orientation of conversion in China.展开更多
The technologies of design, manufacture and MRO （maintenance, repair and overhaul） tor the mili- tary aero-engines, particularly for the fighters, are much more difficult to be mastered than those for any other aero...The technologies of design, manufacture and MRO （maintenance, repair and overhaul） tor the mili- tary aero-engines, particularly for the fighters, are much more difficult to be mastered than those for any other aero-engines. They have been monopolized by only a few countries and the core technologies have never been transferred due to high risk, high investment, high barrier and high cost. Therefore, our country has long relied on mapping and copying the others＇ engines to satisfy the domestic demand due to not having our own indepen- dent technologies for the design and manufacture of military aero-engines. However, through over 20 years of unremitting effort, the independent MRO has been achieved for all the Chinese fighter engines, covering in- R＆D （research and development） and in-service engines; and the MRO technologies, capabilities, quality, cost-efficiency have reached or exceeded those of original manufacturers. It has grown out of nothing, and then from weak to strong. In particular, dozens of projects concerning the R＆D and engineering application of re- manufacturing have obtained the independent intellectual property rights and are playing an irreplaceable role in achieving leaping improvement of independent MRO for Chinese military aero-engines.展开更多
The slow progress and lack of fundamental breakthroughs in legislative practices are an important subject for China's space legislation. Oriented by the idea to formulate China's space law as soon as possible,...The slow progress and lack of fundamental breakthroughs in legislative practices are an important subject for China's space legislation. Oriented by the idea to formulate China's space law as soon as possible, it is necessary to solve five key issues. In the national policy, it is needful not only to implement China's space policy and promote the development of the space industry in depth, but also to advance the deep integration of military and civil application in space field. In terms of legal orientation, three features should be reflected upon, including the functional integration of public and private laws, the balance of regulation by substantive and procedural laws, and the effective coordination of domestic and international laws. To this end, both top-level design and implementation should be paid close attention to in order to achieve significant progress in China's space legislation.展开更多
This paper introduces the current practice of building a network of institutional repositories(IRs) at Chinese Academy of Sciences(CAS), which is named CAS IR Grid.National Science Library(NSL) of CAS plays a leading ...This paper introduces the current practice of building a network of institutional repositories(IRs) at Chinese Academy of Sciences(CAS), which is named CAS IR Grid.National Science Library(NSL) of CAS plays a leading role in the construction, promotion and implementation of CAS IR Grid. It aims to promote each institute of CAS to build IR of its own, and finally form the IR network of CAS institutes. NSL's experience is introduced in coordinating and supporting institutes' building of their respective IRs and promoting IR services by adopting collaborative and progressive development strategies. Achievements made during the development of CAS IR Grid are described and challenges for its future development are discussed. The authors aim to provide best practices for developing a network of institutional repositories in research institute settings, which can serve as a practical reference to other institutions engaged in the similar task.展开更多
随着空域资源需求的不断增大,军民航间飞行矛盾日益突显。为解决此问题,本文以国务院、中央军事委员会空中交通管制委员会提出的“军民航空管联合运行”为背景,引入军民航共享空域的概念,重点研究了在此类空域中军民航飞行活动协同排序(...随着空域资源需求的不断增大,军民航间飞行矛盾日益突显。为解决此问题,本文以国务院、中央军事委员会空中交通管制委员会提出的“军民航空管联合运行”为背景,引入军民航共享空域的概念,重点研究了在此类空域中军民航飞行活动协同排序(CMFCS,civil-military aviation flight activity collaborative sequencing)问题。首先,基于军民航各自飞行任务特点与差异,对军民航飞行任务的种类进行划分,并使用层次分析法确定各类飞行任务的优先权原则;其次,以军民航飞行活动总延误时间成本最小为目标,建立CMFCS模型;最后,使用遗传算法对模型进行求解,确定军民航飞行活动批准进入共享空域的时间序列。研究结果表明,与经典的先到先服务(FCFS,first come first service)策略相比,协同排序策略得到的总延误时间成本降低了72.17%,优化效果显著且更符合实际,能够实现军民航共同使用国家空域资源,保障飞行活动安全、有序、高效地运行。展开更多
文摘Based on landscaping practices in the stereo landscape demonstration project of Chongqing Academy of Science and Technology (CAST),current management and maintenance of the stereo landscapes were introduced by analyzing maintenance and management of the plants in the stereo landscape forest.The maintenance and management models were summarized according to the management styles,concrete measures and new technologies were studied,laws and key points for the maintenance and management in different seasons were given,and finally deficiencies and solutions were proposed to improve the future maintenance and management.
文摘The author uses system analysis to provide system thinkings of the deepening reform of the management of defence science, technology and industry (DSTI) and investigate the system definition of DSTI, the system reform target, system operational mechanism, institutional structure, coordination and control functions and the orientation of conversion in China.
文摘The technologies of design, manufacture and MRO （maintenance, repair and overhaul） tor the mili- tary aero-engines, particularly for the fighters, are much more difficult to be mastered than those for any other aero-engines. They have been monopolized by only a few countries and the core technologies have never been transferred due to high risk, high investment, high barrier and high cost. Therefore, our country has long relied on mapping and copying the others＇ engines to satisfy the domestic demand due to not having our own indepen- dent technologies for the design and manufacture of military aero-engines. However, through over 20 years of unremitting effort, the independent MRO has been achieved for all the Chinese fighter engines, covering in- R＆D （research and development） and in-service engines; and the MRO technologies, capabilities, quality, cost-efficiency have reached or exceeded those of original manufacturers. It has grown out of nothing, and then from weak to strong. In particular, dozens of projects concerning the R＆D and engineering application of re- manufacturing have obtained the independent intellectual property rights and are playing an irreplaceable role in achieving leaping improvement of independent MRO for Chinese military aero-engines.
文摘The slow progress and lack of fundamental breakthroughs in legislative practices are an important subject for China's space legislation. Oriented by the idea to formulate China's space law as soon as possible, it is necessary to solve five key issues. In the national policy, it is needful not only to implement China's space policy and promote the development of the space industry in depth, but also to advance the deep integration of military and civil application in space field. In terms of legal orientation, three features should be reflected upon, including the functional integration of public and private laws, the balance of regulation by substantive and procedural laws, and the effective coordination of domestic and international laws. To this end, both top-level design and implementation should be paid close attention to in order to achieve significant progress in China's space legislation.
基金supported by the Knowledge Innovation Program of Chinese Academy of Sciences (CAS) and the West Light Foundation of CAS
文摘This paper introduces the current practice of building a network of institutional repositories(IRs) at Chinese Academy of Sciences(CAS), which is named CAS IR Grid.National Science Library(NSL) of CAS plays a leading role in the construction, promotion and implementation of CAS IR Grid. It aims to promote each institute of CAS to build IR of its own, and finally form the IR network of CAS institutes. NSL's experience is introduced in coordinating and supporting institutes' building of their respective IRs and promoting IR services by adopting collaborative and progressive development strategies. Achievements made during the development of CAS IR Grid are described and challenges for its future development are discussed. The authors aim to provide best practices for developing a network of institutional repositories in research institute settings, which can serve as a practical reference to other institutions engaged in the similar task.
文摘随着空域资源需求的不断增大,军民航间飞行矛盾日益突显。为解决此问题,本文以国务院、中央军事委员会空中交通管制委员会提出的“军民航空管联合运行”为背景,引入军民航共享空域的概念,重点研究了在此类空域中军民航飞行活动协同排序(CMFCS,civil-military aviation flight activity collaborative sequencing)问题。首先,基于军民航各自飞行任务特点与差异,对军民航飞行任务的种类进行划分,并使用层次分析法确定各类飞行任务的优先权原则;其次,以军民航飞行活动总延误时间成本最小为目标,建立CMFCS模型;最后,使用遗传算法对模型进行求解,确定军民航飞行活动批准进入共享空域的时间序列。研究结果表明,与经典的先到先服务(FCFS,first come first service)策略相比,协同排序策略得到的总延误时间成本降低了72.17%,优化效果显著且更符合实际,能够实现军民航共同使用国家空域资源,保障飞行活动安全、有序、高效地运行。
