摘要:
In a communication apparatus has a line control unit that controls connection with a communication line network, a communication unit transmits/receives data through the communication line network. A detection circuit detects one of a line voltage value and a line current value when the communication apparatus is connected to the line network. A memory unit stores multiple voltage-current characteristic curves defining relationships of line voltage values with respect to line current values satisfying a predetermined standard. An adjusting unit adjusts the line voltage value and the line current value so as to satisfy the predetermined standard based on one of the voltage-current characteristic curves stored in the memory unit. A selecting unit selects another voltage-current characteristic curve different from the one of the voltage-current characteristic curves from among the multiple voltage-current characteristic curves stored in the memory unit. A re-adjusting unit adjusts one of the line voltage and a line current.
摘要:
An acrylic resin composition comprises an organic silicon based compound that can be copolymerised with or mixed with acryl monomer or methacryl monomer in the acrylic resin. The acrylic resin composition may contain inorganic fine grains of which the hydroxyl group or the methyl group is bonded to their surface. A painted-film molded resin plate and a coating member for a solar cell panel use the above acrylic resin composition.
摘要:
A headphone device includes first and second head band members, a first fulcrum portion for pivotally supporting top ends of the first and second head band members so that the lower ends of the first and second head band members are moved towards and away from each other, first and second speaker unit supporting members carrying first and second speaker units, and second and third fulcrum portions for pivotally supporting the respective ends of the first and second speaker unit supporting members for rotation towards the lower ends of the first and second head band members. The center axes of rotation of the second and third fulcrum portions extend in a direction substantially perpendicular to the center axis of rotation of the first fulcrum portion. The headphone device also includes ear support portions provided on the first and second speaker unit supporting members that are retained between the head and the auricles of the user when the user attaches the headphone device to the head.
摘要:
A headphone device and to a technique that makes the headphone device both easy to wear and comfortable when being worn. The headphone device is constructed in such a manner that the positional relationship between driver units and auricles does not change and includes one driver unit and a headband having flexibility and resilience for supporting the driver unit. The headband is arranged around the occipital region of the head when put on the head in such a manner that the driver unit is pressed onto an auricle by the resilience. The headphone device is provided with at least one engaging member having a support coming into contact with an upper side of a root of the auricle, and an auxiliary support coming into contact with a rear side of the root of the auricle.
摘要:
The present technology is an epoxy resin composition for a fiber-reinforced composite material comprising a phosphorus-containing epoxy resin containing phosphorus in the skeleton thereof, a dicyandiamide, and a curing promoter containing at least one selected from 1,1′-(4-methyl-1,3-phenylene)bis(3,3-dimethylurea), phenyl-dimethylurea represented by the following formula (1), and methylene-diphenyl-bisdimethylurea represented by the following formula (2); wherein the phosphorus content of the phosphorus-containing epoxy resin is at least 1.0 mass % and at most 5.0 mass % in the epoxy resin composition.
摘要:
The present invention provides an epoxy resin composition for a fiber reinforced composite material comprising an epoxy resin (A) comprising an epoxy resin (a1) having a weight average molecular weight of up to 1,000 and an epoxy resin (a2) having a weight average molecular weight of 10,000 to 100,000 which contains at least 20% by weight of the basic skeleton of the epoxy resin (a1), a thermoplastic resin (B), and a curing agent (C). The cured composition has a co-continuous phase of the epoxy resin (A) and the thermoplastic resin (B) and/or a continuous phase of the thermoplastic resin (B). A cured product having a high toughness can be obtained from this epoxy resin composition.
摘要:
An earphone device includes a housing having a driver unit, and a sound guide tube mounted on a front surface of the housing to protrude from the front surface, in which the sound guide tube is disposed at a position deviated from a center position of the housing.
摘要:
Provided is an epoxy resin composition for fiber-reinforced composite materials, which serves as a matrix resin for a prepreg. This epoxy resin composition is improved in tackiness stability during storage, while maintaining mechanical characteristics. The epoxy resin composition for fiber-reinforced composite materials is characterized by containing 25 to 50 parts by weight of an amine curing agent (B) selected from aliphatic polyamines, alicyclic polyamines and aromatic polyamines, and 1 to 20 parts by weight of an organic acid dihydrazide compound (C) having a melting point of not less than 150° C., per 100 parts by weight of an epoxy resin (A).
摘要:
Provided is an epoxy resin composition for fiber-reinforced composite materials, which is improved in toughness necessary for improving the strength of self-adhesion of a matrix resin for use in a prepreg for a face sheet of a honeycomb panel. The epoxy resin composition, which comprises: an epoxy resin (A); a thermoplastic resin (B); fine solid resin particles (C); and a curing agent (D), is characterized in that the epoxy resin composition after being cured has a morphology in which the epoxy resin (A) and the thermoplastic resin (B) form co-continuous phases, and the fine solid resin particles (C) are dispersed in at least the continuous phase of the epoxy resin (A) in the co-continuous phases.