This paper uses the panel data of 17 cities in Shandong Province from 2003 to 2018 to construct a panel model to empirically study the impact of foreign direct investment(FDI)on the industrial structure.The results sh...This paper uses the panel data of 17 cities in Shandong Province from 2003 to 2018 to construct a panel model to empirically study the impact of foreign direct investment(FDI)on the industrial structure.The results show that two-way investment,financial industry development,and policy variables have significant roles in promoting the advancement of the industrial structure in the province.In the future implementation of the“Going Global”strategy in Shandong Province,the cooperation between two-way investment and the financial industry should be strengthened,the level of regional financial development should be improved,and the impact of two-way investment on the optimization and upgrading of the industrial structure should be reinforced.展开更多
Against the backdrop of global energy shortages and increasingly severe environmental pollution,renewable energy is gradually becoming a significant direction for future energy development.Power electronics converters...Against the backdrop of global energy shortages and increasingly severe environmental pollution,renewable energy is gradually becoming a significant direction for future energy development.Power electronics converters,as the core technology for energy conversion and control,play a crucial role in enhancing the efficiency and stability of renewable energy systems.This paper explores the basic principles and functions of power electronics converters and their specific applications in photovoltaic power generation,wind power generation,and energy storage systems.Additionally,it analyzes the current innovations in high-efficiency energy conversion,multilevel conversion technology,and the application of new materials and devices.By studying these technologies,the aim is to promote the widespread application of power electronics converters in renewable energy systems and provide theoretical and technical support for achieving sustainable energy development.展开更多
At present,the grape and cherry industries in Shandong are in the leading position in China and have driven the development of related high-end manufacturing industries such as wine,brandy,preserved fruit processing,f...At present,the grape and cherry industries in Shandong are in the leading position in China and have driven the development of related high-end manufacturing industries such as wine,brandy,preserved fruit processing,fruit juice processing and health products. Therefore,vigorously developing the grape and cherry industries in Shandong Province and carrying out development and innovation are important parts of Shandong Province in responding to the strategy of national new and old kinetic energy conversion. However,currently the germplasm resources preserved in the fruit tree resources banks in China are only 45% of those in the US and 27. 2% of those in the EU. Moreover,the development of fruit trees resources banks in Shandong is relatively backward in China,and there is still no banks related with grape and cherry germplasm resources in Shandong. Therefore,importance can be attached to the agriculture,forestry,and animal husbandry to build germplasm resources banks for grape and cherry industries in Shandong Province. Building the national-level grape and cherry germplasm resources bank in Shandong Province can also promote the utilization of wild and farm germplasm resources in the future; advance the research on the genes related to disease resistance,stress resistance and quality of grapes and cherries; push forward the construction and development of cherry and grape mutants banks. It is conducive to the research on the agronomic traits of grapes and cherries,and can provide the parents resources for planting innovation and improving the quality of grapes and cherries,as well as promote the development and application of molecular markers of grapes and cherries,including the identification of lines and crossbreeding. Thereby,it cannot only promote the industry development,but also achieve the development of cultivation,breeding and basic research in an all-round way and the development of " production,study and research" going side by side.展开更多
基于储能在参与调节新能源出力随机性和波动性的重要作用,针对由储能种类多样性和参数复杂性导致的储能选型和配置困难问题,提出了一种面向新能源波动平抑的储能快速选型与配置方法。首先,从储能的物理模型本质出发,综合考虑储能的多类...基于储能在参与调节新能源出力随机性和波动性的重要作用,针对由储能种类多样性和参数复杂性导致的储能选型和配置困难问题,提出了一种面向新能源波动平抑的储能快速选型与配置方法。首先,从储能的物理模型本质出发,综合考虑储能的多类型参数,提出了一种储能多参数等价折算的方法;该方法将储能的荷电状态(state of charge,SOC)、寿命、效率和初始投资成本等多参数对比等价折算为功率和容量的配置成本对比,对复杂参数关系进行综合量化表征,实现对储能价值的快速准确评估。然后,为保证新能源出力平滑,建立了不同时间尺度下的新能源波动平抑指标,提出了新能源波动平抑的储能优化配置模型。该模型以储能成本、限电损失费用和新能源波动越限惩罚费用最小化为目标,考虑系统的运行约束与储能约束,实现系统技术和经济性能的最优化。最后,根据某实际算例的波动平抑需求调研了多种应用广泛的储能系统,基于所提储能多参数等价折算方法对不同储能的技术经济参数进行分析与比较,验证了所提的储能选型配置方法和新能源波动平抑模型的有效性和适用性。展开更多
基金the phased result of the general project“Analysis of the Impact of Shandong Province’s Two-Way Investment on the Transformation and Upgrading of Industrial Structure under the Background of‘High-Quality Development’”and the 2020 Shandong Province Key R&D Program(Soft Science Project)(Project Number:2020RKB01339).
文摘This paper uses the panel data of 17 cities in Shandong Province from 2003 to 2018 to construct a panel model to empirically study the impact of foreign direct investment(FDI)on the industrial structure.The results show that two-way investment,financial industry development,and policy variables have significant roles in promoting the advancement of the industrial structure in the province.In the future implementation of the“Going Global”strategy in Shandong Province,the cooperation between two-way investment and the financial industry should be strengthened,the level of regional financial development should be improved,and the impact of two-way investment on the optimization and upgrading of the industrial structure should be reinforced.
文摘Against the backdrop of global energy shortages and increasingly severe environmental pollution,renewable energy is gradually becoming a significant direction for future energy development.Power electronics converters,as the core technology for energy conversion and control,play a crucial role in enhancing the efficiency and stability of renewable energy systems.This paper explores the basic principles and functions of power electronics converters and their specific applications in photovoltaic power generation,wind power generation,and energy storage systems.Additionally,it analyzes the current innovations in high-efficiency energy conversion,multilevel conversion technology,and the application of new materials and devices.By studying these technologies,the aim is to promote the widespread application of power electronics converters in renewable energy systems and provide theoretical and technical support for achieving sustainable energy development.
基金supported by the Agricultural scientific and technological innovation project of Shandong Academy of Agricultural Sciences(CXGC2016D01)Agricultural scientific and technological innovation project of Shandong Academy of Agricultural Sciences-cultivating project for National Natural Science Foundation of China in 2018"identification and function research of Vitis vinifera and Vitis amurensis cold stress response-related micro RNAs"+2 种基金Major Agricultural Application Technology Innovation Project of Shandong Province"Research and Application of Precision Control of Maturation and Product Innovation of Featured Brewing Grape"Major Agricultural Application Technology Innovation Project of Shandong Province"Development of Landmark Wines and Integrated Application of Key Technologies in Shandong Province"Fruit innovation team of modern agricultural industry technology system in Shandong Province-Jinan comprehensive test station(SDAIT-06-21)
文摘At present,the grape and cherry industries in Shandong are in the leading position in China and have driven the development of related high-end manufacturing industries such as wine,brandy,preserved fruit processing,fruit juice processing and health products. Therefore,vigorously developing the grape and cherry industries in Shandong Province and carrying out development and innovation are important parts of Shandong Province in responding to the strategy of national new and old kinetic energy conversion. However,currently the germplasm resources preserved in the fruit tree resources banks in China are only 45% of those in the US and 27. 2% of those in the EU. Moreover,the development of fruit trees resources banks in Shandong is relatively backward in China,and there is still no banks related with grape and cherry germplasm resources in Shandong. Therefore,importance can be attached to the agriculture,forestry,and animal husbandry to build germplasm resources banks for grape and cherry industries in Shandong Province. Building the national-level grape and cherry germplasm resources bank in Shandong Province can also promote the utilization of wild and farm germplasm resources in the future; advance the research on the genes related to disease resistance,stress resistance and quality of grapes and cherries; push forward the construction and development of cherry and grape mutants banks. It is conducive to the research on the agronomic traits of grapes and cherries,and can provide the parents resources for planting innovation and improving the quality of grapes and cherries,as well as promote the development and application of molecular markers of grapes and cherries,including the identification of lines and crossbreeding. Thereby,it cannot only promote the industry development,but also achieve the development of cultivation,breeding and basic research in an all-round way and the development of " production,study and research" going side by side.
文摘基于储能在参与调节新能源出力随机性和波动性的重要作用,针对由储能种类多样性和参数复杂性导致的储能选型和配置困难问题,提出了一种面向新能源波动平抑的储能快速选型与配置方法。首先,从储能的物理模型本质出发,综合考虑储能的多类型参数,提出了一种储能多参数等价折算的方法;该方法将储能的荷电状态(state of charge,SOC)、寿命、效率和初始投资成本等多参数对比等价折算为功率和容量的配置成本对比,对复杂参数关系进行综合量化表征,实现对储能价值的快速准确评估。然后,为保证新能源出力平滑,建立了不同时间尺度下的新能源波动平抑指标,提出了新能源波动平抑的储能优化配置模型。该模型以储能成本、限电损失费用和新能源波动越限惩罚费用最小化为目标,考虑系统的运行约束与储能约束,实现系统技术和经济性能的最优化。最后,根据某实际算例的波动平抑需求调研了多种应用广泛的储能系统,基于所提储能多参数等价折算方法对不同储能的技术经济参数进行分析与比较,验证了所提的储能选型配置方法和新能源波动平抑模型的有效性和适用性。