Study on the oai - based cross - retrieval in database 的數據庫跨庫檢索研究
Information resources integration based on oai - pmh 的信息資源整合
The chapter i , problems and challenges of the oai are discussed , which serve as the base for presenting the oai issues 第一章主要探討了農業產業化經營面臨的現實困難和挑戰,為農業產業化資本經營問題提供依據。
The operation of agricultural industry ( oai ) is another great creation of china " s the economy of rural area after the household contract system 農業產業化經營是中國農村繼家庭聯產承包責任制以后的又一個偉大創舉。農業產業化的迅猛發展已成為農村經濟中最富有活力的增長點。
Simultaneously , the intrinsic defects of the oai begin to appear . it proves that oai can not expand on the road of simply duplicating construction and simplifying , low - level , and low - graded growth , it need to be further reform and innovated 這預示著發展農業產業化發展不能再依靠走低水平重復建設以及簡單化、低水平、低層次對外擴張的路子,它經營需要進一步改革和創新。
Along with the system analyse , this paper illuminates the key technologies which are used in the system development , such as jsp , jdbc , oai , openurl etc . the implementation of this digital thesis system platform has adopted object - oriented programming thoughts with the ways and means of software engineering . the platform provides great convenience with high efficiency in making users to fulfill the operation of submitting , searching and managing theses . also the system accomplishes the share of theses information between colleges and the calis center and among colleges 論文采用面向對象的設計思想,按照軟件工程的方法提出并實現了數字學位論文系統平臺,用戶在此平臺上可以很方便的完成學位論文的在線提交、檢索以及管理等操作,同時系統還實現了與“ calis高校學位論文全文數據庫”的交互,完成了各高校間學位論文數據共享。
This paper tries to explore the necessities and prospect of the capital operation of agricultural industry ( coai ) . and to supply the theoretic background and guidance for the further development of the oai by the systemic study on the issues of the coai , according to the theoretic base of economics and administration 本文以經濟學和管理學的基本理論為指導,試圖通過對農業產業化資本經營問題的系統研究,揭示農業產業化實施資本經營的必要性和前景,旨在為我國農業產業化向縱深發展提供理論依據和指導。
A good digital library should be able to communicate with the world outside and to develop itself as well ; this is exactly the new rule set by the author to evaluate digital libraries . during the last ten years " evolution of digital libraries , a lot of digital library architectures have been worked out . they include k - w architecture which is well known for its " handle system " , dienst architecture which uses " collection " to search information , infobus architecture which extends its services from the bottom to top , warwick framework which introduces the idea of " container " , fedora architecture which resorts to " content type " to solve interoperability issue , and oai architecture which uses " filtering gate " to solve the same problem 數字圖書館事業的興起已經有了近10年,在這段期間,研究人員們設計出了不少優秀的數字圖書館體系結構,其中包括以“調度系統( handlesystem ) ”而著名的k - w體系模型、利用“類聚合體( collection ) ”來幫助尋找信息的dienst體系模型、自底向上分層次擴展服務的infobus體系模型、利用“容器”思想的warwick框架、引入“內容類型”解決互操作性問題的fedora模型、以及用“過濾性關口”解決互操作性問題的oai ( openarehivesinitiative )框架,這些模型在解決互操作性和可擴展性兩大難題時各有特點,但是他們也都存在著一定的不足之處。