摘要:
A biometric apparatus includes: at least two electrode members arranged so as to be capable of coming into contact with a measured person; a determining device that determines whether the at least two electrode members are in a conducting state via a body of the measured person or not; a measuring device that measures biometric data of the measured person; and a control device that activates or deactivates the measuring device on the basis of a result of determination provided by the determining device.
摘要:
Zinc sulfide phosphor that has high energy efficiency and color purity and that emits blue light is provided. Specifically, a zinc sulfide phosphor adapted for use as a light source or in a display by being applied to powder EL elements is provided. The zinc sulfide blue phosphor comprises copper, silver or both elements and nickel, iron or both elements. The phosphor is obtained by adding a compound comprising copper, silver or both elements, a zinc compound, a sulfidizing agent and a compound comprising nickel, iron or both elements as an aqueous solution to an organic solvent to form a reaction mixture, heating the mixture and removing water from the reaction mixture by azeotropic dehydration of water and the organic solvent to obtain a zinc sulfide phosphor precursor, further sintering the zinc sulfide phosphor precursor.
摘要:
The present invention provides a method for producing a zinc sulfide based phosphor by firing a zinc sulfide based precursor, comprising at least: a first firing step and a second firing step. Use of the method of the present invention makes it possible to provide a zinc sulfide based phosphor material suitable in the production of an EL device that shows high brightness.
摘要:
A phenolic compound which can be obtained by reacting the compound of the formula (1): wherein R1 groups are each independently present and represent a hydrogen atom etc. with the formula (6): wherein R4 groups are each independently present and represent a hydrogen atom etc.; and k represents the number of R4 groups and is an integer of 0 to 4 and an epoxy resin which can be obtained by reacting the phenolic compound with an epihalohydrin are excellent in solvent solubility and also of which cured product has an excellent thermal conductance.
摘要:
The present invention provides a method for producing a zinc sulfide based phosphor by firing a zinc sulfide based phosphor precursor, comprising at least: a first firing step of firing a mixture containing a zinc sulfide based phosphor precursor, sulfur, and a chlorine-containing flux; and a second firing step of further firing the fired product obtained from the first firing step, wherein the first firing step comprises: heating the mixture in an atmosphere wherein an air stream is introduced so that a temperature of the mixture is increased from normal temperature to a transformation temperature at which a crystal system of the phosphor precursor is transformed; when a temperature of the mixture is increased above the transformation temperature, switching the atmosphere to a nitrogen atmosphere and continuing the heating of the mixture; and when the temperature of the mixture reaches a temperature in a range of 1000° C. to 1200° C., inclusive, maintaining the temperature of the mixture at a constant level and thereafter rapidly quenching the mixture and washing the mixture to obtain a fired product; and wherein the second firing step comprises heating in the nitrogen atmosphere the fired product obtained from the first firing step so that the temperature of the fired product is increased from normal temperature to a temperature in a range of 650° C. to 1000° C., inclusive; and when a temperature of the fired product reaches the temperature in the range of 650° C. to 1000° C., inclusive, introducing oxygen while maintaining the temperature of the fired product and thereafter rapidly quenching the fired product and washing the fired product to obtain a zinc sulfide based phosphor. Use of the method of the present invention makes it possible to provide a zinc sulfide based phosphor material suitable for use in the production of an EL device that shows high brightness.
摘要:
The present invention provides a polarized electrode 12 containing mixed activated carbon composed of at least two activated carbons with different specific surface areas, and the specific surface area of the mixed activated carbon is not less than 900 m2/g and less than 1900 m2/g. By setting the specific surface area of the mixed activated carbon to less than 1900 m2/g, the resistance reduction ratio of the polarized electrode 12 rapidly increases.
摘要:
Aimed at providing an electronic weighing scale possibly thinned overall, an electronic weighing scale disclosed herein has a top plate component allowing on the top surface thereof placement of an object to be weighed; and load cell units supporting the top plate component from the lower side thereof, wherein the top plate component is provided with mounting holes so as to extend therethrough in the thickness-wise direction, allowing therein attachment of cup components each having an opening opened downward, and each load cell unit is attached inside each cup component.
摘要:
The use of an activated carbon precursor having a weight reduction rate of 1% or less from the temperature at which its weight reduction ends according to thermogravimetric analysis, to 500 C, when manufacturing activated carbon by activating an activated carbon precursor obtained by heating a mixture of a carbonaceous material and an alkali metal hydroxide at a reduced pressure and/or in the presence of an inert gas.
摘要:
The present invention provides a polarized electrode 12 containing mixed activated carbon composed of at least two activated carbons with different specific surface areas, and the specific surface area of the mixed activated carbon is not less than 900 m2/g and less than 1900 m2/g. By setting the specific surface area of the mixed activated carbon to less than 1900 m2/g, the resistance reduction ratio of the polarized electrode 12 rapidly increases.