Preparation of improved network by using internet for the database system for advanced nuclear materials, "Data Free Way"

Tachi, Yoshiaki  ; not registered; Kano, Shigeki

The database system named "Data Free Way (DFW)" has been constructed in collaboration with PNC, NRIM, JAERI and JST, and a lot of materials data have been stored in DFW with its improvements. Experimental and literature data on corrosion behaviors of ceramics and refractory metals based alloys against alkali metals have been inputted in DFW of PNC site. The DFW system and the network situation around it have been improved to retrieve distributed database by using Internet. The WWW server has been set in DFW machine for client-server system and user's interface has been developed in order to retrieve the database through WWW browser. The DFW server machine of PNC has been set outside of seculity system called firewall for access from other organizations directly, and the local area network of DFW (DFW-LAN) has been constructed to be possible to use and maintain DFW system through the PNC main network. This consists of some personal computers, which play part in preparation, input and analysis of database, instead of engineering workstation. These improvements have brought more effective value to DFW as a advanced material database system.