Abstract: Disclosed is an intelligent distributed storage service system comprising: a web server configured to receive selection information including a virtual storage capacity necessary for a virtual storage service, the number of storage nodes, storage node types, and a distribution method from the terminal when the terminal requests the virtual storage service; at least one storage node configured to generate a virtual disk volume according to external control; a control center server configured to monitor available capacities and usage states of the storage nodes, determine a storage node corresponding to the selection information among the monitored storage nodes, and control the determined storage node to generate the virtual disk volume; and a database (DB) configured to store information of the storage node and virtual disk volume information of the user.

Abstract: Disclosed is a virtual storage service system comprising: a web server configured to receive selection information including a virtual storage capacity necessary for a virtual storage service, the number of storage nodes, storage node types, a distribution method, and a selected storage node from the terminal when the terminal requests the virtual storage service; a control center server configured to exert control with reference to the selection information so that a virtual disk volume is generated; at least one storage node configured to generate the virtual disk volume according to the control of the control center server; and a database (DB) configured to store information of the storage nodes and virtual disk volume information of the user.

Abstract: An array of electrodisplacive actuators is prepared by first forming on an electrodisplacive ceramic wafer a plurality of regularly spaced vertically directional trenches running parallel to each other, followed by forming a first conductive metallic layer thereon. A multiplicity of regularly spaced horizontally directional trenches running parallel to each other and running normal to the plurality of vertically directional trenches is then formed on the thus prepared ceramic wafer. A ceramic block having a top and a bottom surfaces is then formed by bonding together two ceramic wafers, prepared using the above described procedures. The top and the bottom surfaces of the ceramic block are removed until the first conductive metallic layer is exposed, and then a series of regularly spaced vertically directional grooves is formed thereon. Finally, a second conductive metallic layer is deposited on a bottom and side surfaces of each of the grooves to thereby form the array of electrodisplacive actuators.