Abstract: An information processing system with memory and processing circuitry to build a virtualized image file from a base image file used as a base for an image file to be virtualized. Based on a description in a building instruction setting file, it associates the virtualized image file having been built with the base image file and the building instruction setting file, and stores the virtualized image file in the memory. It determines a combination of the base image file and the building instruction setting file with another combination of the base image file and the building instruction setting file to determine whether both combinations match, and when determining that both combinations match, it reuses the virtualized image file.

Abstract: There is provided a data browse apparatus that can improve visibility by controlling a display content regarding data having a high degree of correlation with an instruction direction among pieces of data on a browse screen. The data browse apparatus includes a data direction acquisition unit configured to acquire a direction indicated by data expressing a path as a data direction, an instruction direction acquisition unit configured to acquire a direction in a space of the data as an instruction direction, a relationship acquisition unit configured to acquire a relationship between the data direction and the instruction direction, and a display control unit configured to perform display control so as to make a difference in display content among a plurality of pieces of the data based on the relationship.

Abstract: A data retrieval apparatus selects data to be retained in a cache so that a cache created in retrieval at a previous stage is reused in retrieval at a later stage, and implements retrieval processing to enhance a reusability of retrieved data and upgrade a response speed.

Abstract: A data retrieval apparatus selects data to be retained in a cache so that a cache created in retrieval at a previous stage is reused in retrieval at a later stage, and implements retrieval processing to enhance a reusability of retrieved data and upgrade a response speed.

Abstract: The oxidation of a high polymer such as polyvinyl chloride or polyolefin, which oxidation causes cleavages of carbon-carbon bonds in the main chains thereof to degrade the high polymer into lower molecular weight compounds, is remarkably accelerated when the high polymer is impregnated with a halogenated compound having a carbonyl group or carbonyl groups and exposed to sunlight or is irradiated with ultraviolet radiation in an ambient atmosphere of oxygen or a gas containing oxygen. This acceleration of the oxidation makes possible easy destruction of a shaped article made of such a high polymer.