期刊论文结构化加工在期刊界已经逐步形成共识,国内期刊平台多采用新版期刊文章标签集(Journal Article Tag Suite,JATS)标准进行加工,但JATS标准仅对数据属性提出建议值,自行拓展空间较大,导致实际的数据加工结果千差万别,数据交换困...期刊论文结构化加工在期刊界已经逐步形成共识,国内期刊平台多采用新版期刊文章标签集(Journal Article Tag Suite,JATS)标准进行加工,但JATS标准仅对数据属性提出建议值,自行拓展空间较大,导致实际的数据加工结果千差万别,数据交换困难重重。本文分析了国内外数字化加工和标准进化的历程及我国在XML结构化数据加工中存在的问题,进一步分析了存档及交换标签集、出版标签集等不同子集的特点,提出既能完整保留论文原始信息,又便于提取各类结构化信息的数据加工及存储解决方案,可以根据需要通过减法转换生成符合各平台标准的数据加工存储格式,从而真正实现一次加工、多渠道投放和传播。展开更多
Flywheel energy storage(FES) can have energy fed in the rotational mass of a flywheel,store it as kinetic energy,and release out upon demand.The superconducting energy storage flywheel comprising of magnetic and super...Flywheel energy storage(FES) can have energy fed in the rotational mass of a flywheel,store it as kinetic energy,and release out upon demand.The superconducting energy storage flywheel comprising of magnetic and superconducting bearings is fit for energy storage on account of its high efficiency,long cycle life,wide operating temperature range and so on.According to the high temperature superconducting(HTS) cooling mode,there are zero field cooling(ZFC) bearings and field cooling(FC) bearings.In practice,the superconducting bearings are formed by field-cooled superconductors and permanent magnets(PMs) generally.With respect to the forces between a permanent magnet and a superconductor,there are axial(thrust) bearings and radial(journal) bearings.Accordingly,there are two main types of high-temperature superconducting energy storage flywheels,and if a system comprising both the thrust bearing and the radial bearing will have the characteristics of both types of bearings.Magnetic force,magnetic stiffness and damping are these three main parameters to describe the levitation characteristics.Arrangement and shape of superconductors,thickness of superconductor,superconducting flux creep and critical current density of the superconductor affect the magnetic levitation force of these superconducting bearings.The key factors of FES technology,such as flywheel material,geometry,length and its support system were described,which directly influence the amount of energy storage and flywheel specific energy.All these results presented in this paper indicate that the superconducting energy storage flywheel is an ideal form of energy storage and an attractive technology for energy storage.展开更多
就下列三方面进行论述:首先就《菌物学报》的简史进行了回顾。对《真菌学报》及《Mycosystema》的创刊及其背景进行了简短叙述。当《Mycosystema》已被《Dictionary of the Fungi》第八版作为世界25种菌物科学定期刊物之一列入国际刊物...就下列三方面进行论述:首先就《菌物学报》的简史进行了回顾。对《真菌学报》及《Mycosystema》的创刊及其背景进行了简短叙述。当《Mycosystema》已被《Dictionary of the Fungi》第八版作为世界25种菌物科学定期刊物之一列入国际刊物名录后,学会和开放实验室决定将《真菌学报》并入《Mycosystema》;就中文刊名启用《菌物学报》的背景进行了回顾。其次,就菌物多样性及其分类学与演化系统生物学、《菌物学报》所扮演的三大存取系统之一——菌物信息存取系统的重要性进行了论述。再次,对《菌物学报》的过去和现在的历史性贡献予以肯定;对其今后的作用抱有期望。展开更多
文摘期刊论文结构化加工在期刊界已经逐步形成共识,国内期刊平台多采用新版期刊文章标签集(Journal Article Tag Suite,JATS)标准进行加工,但JATS标准仅对数据属性提出建议值,自行拓展空间较大,导致实际的数据加工结果千差万别,数据交换困难重重。本文分析了国内外数字化加工和标准进化的历程及我国在XML结构化数据加工中存在的问题,进一步分析了存档及交换标签集、出版标签集等不同子集的特点,提出既能完整保留论文原始信息,又便于提取各类结构化信息的数据加工及存储解决方案,可以根据需要通过减法转换生成符合各平台标准的数据加工存储格式,从而真正实现一次加工、多渠道投放和传播。
基金the Postdoctoral Foundation of China(No. 20060400389)the National High Technology Research and Development Program (863) of China(No. 2006AA05Z241)
文摘Flywheel energy storage(FES) can have energy fed in the rotational mass of a flywheel,store it as kinetic energy,and release out upon demand.The superconducting energy storage flywheel comprising of magnetic and superconducting bearings is fit for energy storage on account of its high efficiency,long cycle life,wide operating temperature range and so on.According to the high temperature superconducting(HTS) cooling mode,there are zero field cooling(ZFC) bearings and field cooling(FC) bearings.In practice,the superconducting bearings are formed by field-cooled superconductors and permanent magnets(PMs) generally.With respect to the forces between a permanent magnet and a superconductor,there are axial(thrust) bearings and radial(journal) bearings.Accordingly,there are two main types of high-temperature superconducting energy storage flywheels,and if a system comprising both the thrust bearing and the radial bearing will have the characteristics of both types of bearings.Magnetic force,magnetic stiffness and damping are these three main parameters to describe the levitation characteristics.Arrangement and shape of superconductors,thickness of superconductor,superconducting flux creep and critical current density of the superconductor affect the magnetic levitation force of these superconducting bearings.The key factors of FES technology,such as flywheel material,geometry,length and its support system were described,which directly influence the amount of energy storage and flywheel specific energy.All these results presented in this paper indicate that the superconducting energy storage flywheel is an ideal form of energy storage and an attractive technology for energy storage.
文摘就下列三方面进行论述:首先就《菌物学报》的简史进行了回顾。对《真菌学报》及《Mycosystema》的创刊及其背景进行了简短叙述。当《Mycosystema》已被《Dictionary of the Fungi》第八版作为世界25种菌物科学定期刊物之一列入国际刊物名录后,学会和开放实验室决定将《真菌学报》并入《Mycosystema》;就中文刊名启用《菌物学报》的背景进行了回顾。其次,就菌物多样性及其分类学与演化系统生物学、《菌物学报》所扮演的三大存取系统之一——菌物信息存取系统的重要性进行了论述。再次,对《菌物学报》的过去和现在的历史性贡献予以肯定;对其今后的作用抱有期望。