Abstract: There is provided a space information sharing apparatus, a space information sharing method, and a program adapted to let users feel as if their spaces are interconnected in a multidirectional communication system while saving bandwidth. A control section is provided to control communication of space information indicative of appearances of a space of a first user to an apparatus of a second user on the basis of first sensing information representative of the state of the first user and second sensing information representative of the state of the second user. This technology is applied advantageously to multidirectional communication systems.

Abstract: The present technique relates to a multi-direction communication apparatus, a multi-direction communication method, and a program capable of reducing an uncomfortable feeling to be provided to a user feeling that spaces are continuous in a multi-direction communication system. A reception section receives real space information including information representing a situation of a real space for a user B. A virtual data generation section generates, on the basis of the received real space information, virtual space information including information representing a situation of a virtual space. A control section controls display, on an information processing apparatus of a user A, of the virtual space represented by the generated virtual space information instead of the real space represented by the real space information. The present technique can be applied to a multi-direction communication system.

Abstract: There is provided a space information sharing apparatus, a space information sharing method, and a program adapted to let users feel as if their spaces are interconnected in a multidirectional communication system while saving bandwidth. A control section is provided to control communication of space information indicative of appearances of a space of a first user to an apparatus of a second user on the basis of first sensing information representative of the state of the first user and second sensing information representative of the state of the second user. This technology is applied advantageously to multidirectional communication systems.

Abstract: The present technique relates to a multi-direction communication apparatus, a multi-direction communication method, and a program capable of reducing an uncomfortable feeling to be provided to a user feeling that spaces are continuous in a multi-direction communication system. A reception section receives real space information including information representing a situation of a real space for a user B. A virtual data generation section generates, on the basis of the received real space information, virtual space information including information representing a situation of a virtual space. A control section controls display, on an information processing apparatus of a user A, of the virtual space represented by the generated virtual space information instead of the real space represented by the real space information. The present technique can be applied to a multi-direction communication system.

Abstract: Provided is a lithium titanate powder for an electrode of an energy storage device, an active material containing the same, and an energy storage device using the active material. The lithium titanate powder comprises Li4Ti5O12 as a main component, and wherein, when a volume surface diameter calculated from specific surface area determined by the BET method is DBET and a crystallite diameter calculated from half-peak width of (111) plane of Li4Ti5O12 by the Scherrer equation is DX, DBET is 0.1 to 0.

Abstract: Provided is a lithium titanate powder for an electrode of an energy storage device, the lithium titanate powder comprising Li4Ti5O12 as a main component, wherein, when the volume surface diameter calculated from the specific surface area determined by the BET method is represented as DBET and the crystallite diameter calculated from the half-peak width of the peak of the (111) plane of Li4Ti5O12 by the Scherrer equation is represented as DX, DBET is 0.1 to 0.6 ?m, DX is greater than 80 nm, and (DBET/DX (?m/?m)) the ratio of DBET to DX is 3 or less. Also provided are an active material including the lithium titanate powder and an energy storage device using the active material.

Abstract: Provided is a lithium titanate powder for an electrode of an energy storage device, an active material containing the same, and an energy storage device using the active material. The lithium titanate powder comprises Li4Ti5O12 as a main component, and wherein, when a volume surface diameter calculated from specific surface area determined by the BET method is DBET and a crystallite diameter calculated from half-peak width of (111) plane of Li4Ti5O12 by the Scherrer equation is DX, DBET is 0.1 to 0.

Abstract: Provided is a lithium titanate powder for an electrode of an energy storage device, the lithium titanate powder comprising Li4Ti5O12 as a main component, wherein, when the volume surface diameter calculated from the specific surface area determined by the BET method is represented as DBET and the crystallite diameter calculated from the half-peak width of the peak of the (111) plane of Li4Ti5O12 by the Scherrer equation is represented as DX, DBET is 0.1 to 0.6 ?m, DX is greater than 80 nm, and (DBET/DX (?m/?m)) the ratio of DBET to DX is 3 or less. Also provided are an active material including the lithium titanate powder and an energy storage device using the active material.

Abstract: A production process which comprises a preform formation step of forming a fiber preform made of silicon carbide short fibers having heat resistance of 1000° C. or greater; a sol-gel preparation step of preparing a sol-gel solution containing a heat resistant compound having heat resistance of 1000° C. or greater; an impregnation-drying-calcination step of impregnating the fiber preform with the sol-gel solution, followed by drying and calcining; and a crystallization step of crystallizing the fiber preform after impregnation, drying and calcination.

Abstract: A production method of a zinc oxide single crystal, comprising depositing a crystal of zinc oxide on a seed crystal from a mixed melt of zinc oxide and a solvent capable of melting zinc oxide and having a higher average density than zinc oxide in the melt. Preferably, a zinc oxide single crystal is continuously pulled while supplying the same amount of a zinc oxide raw material as that of the pulled zinc oxide. A single crystal excellent in the crystal quality and long in the pulling direction can be continuously produced.

Abstract: A production process which comprises a preform formation step of forming a fiber preform made of silicon carbide short fibers having heat resistance of 1000° C. or greater; a sol-gel preparation step of preparing a sol-gel solution containing a heat resistant compound having heat resistance of 1000° C. or greater; an impregnation-drying-calcination step of impregnating the fiber preform with the sol-gel solution, followed by drying and calcining; and a crystallization step of crystallizing the fiber preform after impregnation, drying and calcination.

Abstract: A production process which comprises a preform formation step of forming a fiber preform made of silicon carbide short fibers having heat resistance of 1000° C. or greater; a sol-gel preparation step of preparing a sol-gel solution containing a heat resistant compound having heat resistance of 1000° C. or greater; an impregnation-drying-calcination step of impregnating the fiber preform with the sol-gel solution, followed by drying and calcining; and a crystallization step of crystallizing the fiber preform after impregnation, drying and calcination.

Abstract: A production method of a zinc oxide single crystal, comprising depositing a crystal of zinc oxide on a seed crystal from a mixed melt of zinc oxide and a solvent capable of melting zinc oxide and having a higher average density than zinc oxide in the melt. Preferably, a zinc oxide single crystal is continuously pulled while supplying the same amount of a zinc oxide raw material as that of the pulled zinc oxide. A single crystal excellent in the crystal quality and long in the pulling direction can be continuously produced.

Abstract: A production process which comprises a preform formation step of forming a fiber preform made of silicon carbide short fibers having heat resistance of 1000° C. or greater; a sol-gel preparation step of preparing a sol-gel solution containing a heat resistant compound having heat resistance of 1000° C. or greater; an impregnation-drying-calcination step of impregnating the fiber preform with the sol-gel solution, followed by drying and calcining; and a crystallization step of crystallizing the fiber preform after impregnation, drying and calcination.

Abstract: The porous sound-absorbing material manufactured is light and has excellent heat resistance to be applicable to the exhaust nozzle etc. of a jet engine, can effectively absorb noise as that from a jet engine, over a wide range of frequencies, is free from variations in porosity, and provides stable performance characteristics. An essential feature thereof is the formation of a skeleton of the material, with aggregates containing voids. Thus, a porous sound-absorbing material having a skeleton of aggregates with first voids is described, wherein diameters of first voids of the aggregates are 50 ?m to 100 ?m, approximately, and diameters of second voids between the aggregates are 100 ?m to 600 ?m.

Abstract: The porous sound-absorbing material manufactured is light and has excellent heat resistance to be applicable to the exhaust nozzle etc. of a jet engine, can effectively absorb noise as that from a jet engine, over a wide range of frequencies, is free from variations in porosity, and provides stable performance characteristics. An essential feature thereof is the formation of a skeleton of the material, with aggregates 5 containing voids 6.