Abstract: Provided is a carbon transfer film excellent in wear suppression and friction reduction effects. A carbon transfer film 12 contains sp2-bonded carbon, wherein a ratio of zirconium calculated by elemental analysis of a surface by SEM-EDX measurement is 0.6 mass % or lower, and a thickness is less than 100 nm. A sliding member 1 includes a substrate 11 and a carbon transfer film 12 provided on at least one surface of the substrate 11, wherein the carbon transfer film 12 contains sp2-bonded carbon and has a thickness of less than 100 nm; and a ratio of zirconium calculated from elemental analysis the carbon transfer film 12 surface by SEM-EDX measurement of is 0.6 mass % or lower. A lubricant composition contains an organic dispersion medium as a lubricant base and nanodiamond particles nanodispersed in the organic dispersion medium, wherein a content ratio of zirconia is lower than 100 mass ppm.

Abstract: Provided is a carbon transfer film excellent in wear suppression and friction reduction effects. A carbon transfer film 12 contains sp2-bonded carbon, wherein a ratio of zirconium calculated by elemental analysis of a surface by SEM-EDX measurement is 0.6 mass % or lower, and a thickness is less than 100 nm. A sliding member 1 includes a substrate 11 and a carbon transfer film 12 provided on at least one surface of the substrate 11, wherein the carbon transfer film 12 contains sp2-bonded carbon and has a thickness of less than 100 nm; and a ratio of zirconium calculated from elemental analysis the carbon transfer film 12 surface by SEM-EDX measurement of is 0.6 mass % or lower. A lubricant composition contains an organic dispersion medium as a lubricant base and nanodiamond particles nanodispersed in the organic dispersion medium, wherein a content ratio of zirconia is lower than 100 mass ppm.

Abstract: The present invention allows a user to enjoyably select a music content, which meets the user's potential likes, for a short period of time without stressing the user. The present invention selects a group of music contents, which should be regarded as objects of reproduction, from among numerous contents, sequentially reproduces and outputs hook-portion data items (A1, B1, and C1) of the group of music contents, inserts a hook switching sound effect, which is expected to exert a user-desired effect, between adjoining ones of the hook-portion data items (A1, B1, and C1), and thus performs partial reproduction processing on the hook portions of the group of music contents.