Subjects: Library Science，Information Science >> Library Science submitted time 2023-04-20
Abstract： [Purpose/Significance] The study constructs a framework of intelligent library construction ideas for public libraries during the “14th Five-Year” Plan period, intending to provide reference and innovative understanding for the intelligent transformation of public libraries in China. [Method/Process] The study selected the strategic planning texts of 32 provincial public libraries and 15 sub-provincial public libraries in China as the sample for analysis, and the general objectives, development strategies, and specific actions about smart libraries in the sample were used as the basic analysis units for manual class coding to reveal the contents related to smart library construction in the planning texts. [Result/Conclusion] Active development of smart libraries has now become a basic consensus in public libraries. It is found that the path of smart transformation of public libraries mainly revolves around six aspects, including technology, space, resources, services, management, and collaboration and coordination. Future public library practices can start from three aspects, such as the overall construction of Digital China, the National Cultural Digitization Strategy, and the construction of great power of quality, to provide insights for their intelligent transformation.
Peer Review Status:
Awaiting Review
Subjects: Mechanics >> Applied Mechanics submitted time 2023-03-20 Cooperative journals: 《应用力学学报》
Abstract： This paper studies the forward flight dynamic model of tilt rotor unbalanced load proposed byJohnson , and applies its blade analysis method to the modal analysis of helicopter rotor system.Under theassumption of rigidity , the flapping and shimmy motion equations of helicopter rotor blade under the com-bined action of elastic damping and inertial force are derived , and the corresponding motion equations infixed and rotating coordinate systems are given.By introducing the assumption of uniform inflow and lineartorsion , the theoretical analytical solution of the equation of motion is obtained.Then , using the superposi-tion principle , the axial motion equation of the hub is obtained; Newmark method is used to solve the vibration differential equation , and finally the axis motion trajectory of helicopter rotor is obtained.Taking a hel-icopter rotor system as an example , the accuracy of the rotor blade modal analysis method proposed in thispaper is verified , and the optimal solution step selection method considering both calculation accuracy andefficiency is given. 'The hub axis trajectory under typical flight state is predicted , which provides a basicmethod and technical reference for the design of helicopter rotor system.
Subjects: Library Science，Information Science >> Library Management submitted time 2022-08-25
Abstract： Purpose/Significance With the far-reaching influence of the tide of science and technology on library career, "transformation and reform" has become a major proposition in the library field. What does the current university library look like in the eyes of users? It is of great significance to explore the users’ perception of university library image for improving the image of university library and promoting its overall development. Method/Process In view of the lack of user perception research on the image of college libraries in China with user review data from third-party review websites, based on comments on libraries of universities included in the “double first-class” construction collected from the public comment network，this paper analyses the overall image，cognitive image and emotional tendency perception of university libraries by using TF-IDF keyword extraction, LDA topic clustering algorithm and ROST CM6.0. Result/Conclusion The results show that the users mainly hold a positive attitude towards the image of university libraries, though they have different emphasis on the image perception of different components. Finally, this paper puts forward some strategies to improve the image of university libraries.
Peer Review Status:Awaiting Review
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