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National Science Library(NSL) aims to establish an integrated and digital science information service environment for researchers and students in CAS during***. CSDL can be divided into three top-down layers: portal, application and resource. resource layer is mainly consist of all kinds of databases such as A&I database, fulltext database, citation database etc. application layer has OpenURL linking server, Cross-Database Meta-search engine, OAI Service providers that can integrated those resource into a universal knowledge platform; portal layer enable user to customizes CSDL information and service and subscribe CSDL via RSS and e-mail??CSDL is based on a library consortia including almost 90 institutional libraries across CAS and tend to incorporate them into a virtual library federation of resource and service. the mission of CSDL Project Coordination Office is to help these libraries to acquire e-resource and establish onweb service system via public biding.[國際網路] - www.*as.ac.cn - -
Optics InfoBase is the Optical Society's onweb library for flagship journals, partnered and copublished journals, and recent proceedings from OSA conferences.[國際網路] - www.opticsinfoba*e.org - -
[國際網路] - www.science*ag.org - -
[國際網路] - www.n*tlibrary.com - -
[國際網路] - www.enginee*ingvillage.com - -
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