Suchergebnisse

As one of the eighteen field-specific reports comprising the comprehensive scope of the strategic general report of the Chinese Academy of Sciences, this sub-report addresses long-range planning for developing science and technology in the field of regional development research. They each craft a roadmap for their sphere of development to 2050. In their entirety, the general and sub-group reports analyze the evolution and laws governing the development of science and technology, describe the decisive impact of science and technology on the modernization process, predict that the world is on the eve of an impending S & T revolution, and call for China to be fully prepared for this new round of S & T advancement. Based on the detailed study of the demands on S & T innovation in China's modernization, the reports draw a framework for eight basic and strategic systems of socio-economic development with the support of science and technology, work out China's S & T roadmaps for the relevant eight basic and strategic systems in line with China's reality, further detail S & T initiatives of strategic importance to China's modernization, and provide S & T decision-makers with comprehensive consultations for the development of S & T innovation consistent with China's reality. Supported by illustrations and tables of data, the reports provide researchers, government officials and entrepreneurs with guidance concerning research directions, the planning process, and investment. Founded in 1949, the Chinese Academy of Sciences is the nation's highest academic institution in natural sciences. Its major responsibilities are to conduct research in basic and technological sciences, to undertake nationwide integrated surveys on natural resources and ecological environment, to provide the country with scientific data and consultations for government's decision-making, to undertake government-assigned projects with regard to key S & T problems in the process of socio-economic development, to initiate personnel training, and to promote China's high-tech enterprises through its active engagement in these areas.

Taking 286 cities above the prefecture level in China as the research object and the research period from 2003 to 2019, through the two-way fixed effect model, this paper empirically analyzes the impact of the city level on environmental collaborative governance. The threshold regression model is used to reveal the nonlinear relationship between urban levels and environmental collaborative governance and to analyze the phase characteristics of different urban levels for environmental collaborative governance. The results show that: (1) The city level has a significant role in promoting collaborative environmental governance. (2) The regression results of the three major sections show that the urban level promotion in the eastern region has the strongest promoting effect on the coordinated environmental governance, and the western region is the weakest. (3) The impact of the city level on collaborative environmental governance is nonlinear. When the city scale reaches a certain critical point, its impact on the collaborative environmental governance tends to intensify.

AbstractThis paper studies a combined replenishment and warehouse size planning problem. A firm (3PW user) decides the replenishment quantities over a finite planning horizon to satisfy the time‐varying demands of a product. The firm has no warehouse and contracts with a third‐party warehousing (3PW) provider for storage space over the planning horizon. In the warehousing contract, the planning horizon is partitioned into a number of sessions, and each session also consists of multiple periods. The firm decides a stationary base storage size (BSS) of each session and has an opportunity to adjust the BSS at the beginning of each session. The firm also has the option to rent additional storage size beyond the BSS by paying higher rental cost in each individual period. We explore structural properties and develop a strongly polynomial‐time algorithm by applying geometric techniques to solve the firm's replenishment and warehouse sizing problem. We also conduct numerical experiments and provide important insights into the 3PW user's decisions and the 3PW contract design.