Abstract: An out-of-head localization filter determination system according to an embodiment includes headphones, a microphone unit, a measurement processor, and a server device. The measurement processor measures first ear canal transfer characteristics from a first position to a microphone, measures ear canal transfer characteristics from a second position to a microphone, and transmits user data related to the first ear canal transfer characteristics to the server device. The server device includes a storage unit that stores first preset data and a second preset data in association with each other, a comparison unit that compares the second preset data with the user data, and an extraction unit that extracts the first preset data according to a comparison result.

Abstract: Unburned carbon is efficiently removed from fly ash, and effective utilization of the fly ash and removed unburned carbon is attained. Water is added to fly ash to thereby obtain a slurry. A collector is added to the slurry, and shearing force is applied to the slurry and collector to thereby attain a surface modification. The mixture is subjected to flotation operation at which unburned carbon of fly ash is attached to froths and surfaced. The application of shearing force to the slurry and collector can be carried out by means of a submerged agitator whereby an agitation power of 0.7 to 10 kWh/m3 is applied per unit quantity of slurry. The fly ash concentration of the slurry is in the range of 3 to 50 wt. %, and the amount of collector added is in the range of 5 to 100 wt. % based on the amount of unburned carbon of fly ash. The unburned carbon separated by flotation can be used as fuel, and the fly ash (product) having its unburned carbon content reduced to 1 wt.

Abstract: Unburned carbon is efficiently removed from fly ash, and effective utilization of the fly ash and removed unburned carbon is attained. Water is added to fly ash to thereby obtain a slurry. A collector is added to the slurry, and shearing force is applied to the slurry and collector to thereby attain a surface modification. The mixture is subjected to flotation operation at which unburned carbon of fly ash is attached to froths and surfaced. The application of shearing force to the slurry and collector can be carried out by means of a submerged agitator whereby an agitation power of 0.7 to 10 kWh/m3 is applied per unit quantity of slurry. The fly ash concentration of the slurry is in the range of 3 to 50 wt. %, and the amount of collector added is in the range of 5 to 100 wt. % based on the amount of unburned carbon of fly ash. The unburned carbon separated by flotation can be used as fuel, and the fly ash (product) having its unburned carbon content reduced to 1 wt.

Abstract: A photocatalyst module comprising a substrate, for example, a metallic substrate, a layer of a photocatalyst such as titanium oxide, and a protective layer containing lithium silicate provided between the substrate and the layer of a photocatalyst wherein the protective layer can sufficiently withstand the heat in a step for forming the layer of a photocatalyst by a flame spray coating method and can prevents oxidation and/or decomposition of the substrate is disclosed.

Abstract: A method comprising a first step for radiating ultraviolet rays of a short wavelength of 110 nm or longer, but shorter than 200 nm to the gas, for example, an air to be treated to generate ozone, a second step for radiating ultraviolet rays of a medium wavelength of 200 nm or longer, but shorter than 300 nm to the air treated in the first step to form active oxygen, and a third step for radiating ultraviolet rays of a long wavelength of 300 nm or longer, but shorter than 380 nm to the air treated in the second step to convert the active oxygen into oxygen molecule in ground state, at least the second and/or third step being conducted in the presence of a photocatalyst comprising particles of titanium oxide of an orthorhombic crystal system or particles of titanium oxide of an orthorhombic crystal system supporting fine particles of another metal.

Abstract: A photocatalyst module comprising a substrate, for example, a metallic substrate, a layer of a photocatalyst such as titanium oxide, and a protective layer containing lithium silicate provided between the substrate and the layer of a photocatalyst wherein the protective layer can sufficiently withstand the heat in a step for forming the layer of a photocatalyst by a flame spray coating method and can prevents oxidation and/or decomposition of the substrate is disclosed.

Abstract: The inventive cement-based composition is useful as a coating material for corrosion-resistant protection on steel and iron surfaces. The composition is basically a polymer cement composition prepared by compounding a hydraulic cement with an aqueous emulsion of a polymeric constituent but characteritically the inventive composition is prepared by adding an aqueous emulsion of a hydrocarbon solvent such as kerosene containing a combination of surface active agents, i.e. oil-soluble non-ionic, water-soluble non-ionic and water-soluble cationic ones, and a saccharide compound such as glucose. By virtue of the unique formulation, the composition has a greatly extended pot-life suitable for coating works of, for example, steel rods and pipes by the dip coating method.

Abstract: Disclosed is a process for deashing coal, which comprises the following steps (a) to (e):(a) crushing coal to form crushed coal having a particle size distribution of 0.05 to 15 mm and an average particle size of 0.5 to 2 mm,(b) producing an aqueous slurry comprising the crushed coal, 1 to 4 wt.

Abstract: Uniform flow of gas flowing in a cylinder having inner diameter larger than that of a pipeline is introduced through a funnelform reducer into the inlet of the pipeline, where uniform flow of gas turned to a spiral gas stream by bringing to the mean gas stream velocity faster than 20 meter per second there. When solid particles are introduced into the spiral gas strem zone, they are transported to the outlet of the pipeline. A compressed gas layer is formed along the inside wall of the pipeline by the spiral motion of gas stream, and the layer prevents the direct contact of the solid particles to the inside wall of the pipeline which causes the erosion of the pipeline. As the center part of the cross section of the pipeline becomes very low pressure, especially along the axis of the pipeline, solid particles containing or accompanying volatile matters are desiccated or concentrated as a result of the evaporation of volatile matters while being transported in the pipeline.

Abstract: Coal particles can be agglomerated with simultaneous ash removal therefrom by adding an oil fraction to an aqueous slurry of coal particles which contains a surfactant and optionally an inorganic electrolyte.