Abstract: This invention provides water-soluble magnetic or water-soluble metal oxide nanoparticles, which are coated with phase transfer ligands having an adhesive region, an adhesive region-crosslinking region, or an adhesive region-reactive region, and also provides a method of preparing water-soluble magnetic or metal oxide nanoparticles, the method including (1) synthesizing water-insoluble magnetic or metal oxide nanoparticles in an organic solvent; (2) dissolving the water-insoluble magnetic or metal oxide nanoparticles in a first solvent and dissolving a phase transfer ligand in a second solvent; and (3) mixing the two solutions achieved in step (2) to thus exchange the surface of the water-insoluble magnetic or metal oxide nanoparticles with the phase transfer ligand.

Abstract: A method of processing a dynamic database in a distributed processing system based on CORBA platform includes calling a generic method in a server, detecting data by the called generic method, storing the detected data, and returning the detected data to a client, in the distributed processing system. The detected data is initially stored in a local memory of the database. The generic method then creates a dynamic storage area in the database for the data based on the number of data units that were detected, and based on the size of the detected data unit. In this manner, there is no need to pre-define the structure of the storage area before performing the query.

Abstract: A method of processing a dynamic database in a distributed processing system based on CORBA platform includes calling a generic method in a server, detecting data by the called generic method, storing the detected data, and returning the detected data to a client, in the distributed processing system. The detected data is initially stored in a local memory. The generic method then creates a storage area for the data based on the number of data units that were detected, and based on the size of the detected data unit. In this manner, there is no need to pre-define the structure of the storage are before performing the query.