摘要:
In an acoustic sheet which can be used as a head material of a percussion instrument or a head material for a sound box of a string instrument, a plurality of change regions having a crystalline orientation different from a base are dispersed into the base made of a synthetic resin sheet having a uniform crystalline orientation. The acoustic sheet can include a delamination which is formed by delaminating the synthetic resin sheet in a thickness direction.
摘要:
A highly reliable vacuum heat insulating material having excellent processability, usability and heat insulating performance and a heat insulating box using the vacuum heat insulating material are provided. A vacuum heat insulating material related to the present invention includes: a core material structured by a laminated structure of an organic fiber assembly formed by forming an organic fiber into a sheet shape and cutting an end face with a predetermined length, and having a core material opening portion formed by a through hole or a notch with cutting; a gas-barrier outer cover material containing the core material inside, having a sealing portion for sealing surrounding of the sheet-shaped organic fiber assembly and surrounding of the core material opening portion, and hermetically sealing an inside with almost vacuum status by sealing the sealing portion; and an outer cover material opening portion provided at the outer cover material under a status in which the sealing portion provided at the surrounding of the sheet-shaped organic fiber assembly and the surrounding of the core material opening portion is sealed, being a through hole or a notch which is smaller than the core material opening portion with a sealed amount, and a long fiber being equal to or longer than a length of the sheet is used for the organic fiber.
摘要:
A manufacturing apparatus of a core material of a highly reliable vacuum heat insulating material having excellent workability, usability, and heat insulating performance is provided. The manufacturing apparatus of a core material of a vacuum heat insulating material related to the present invention includes: a reel for winding up a fiber assembly which has a predetermined width and is wound on a substantially cylindrical original fabric roll which has been cut to have a predetermined width, at a predetermined number of times; cutting means for cutting the fiber assembly which has been wound on the reel; and a forming member for forming the fiber assembly into a flat-plate-shaped core material after removing from the reel the fiber assembly which has been wound up on the reel at the predetermined number of times and been cut.
摘要:
A highly reliable vacuum heat insulating material having excellent workability, usability, and heat insulating performance, and a heat insulation box using the vacuum heat insulating material are provided. A vacuum heat insulating material includes: a first fiber assembly made by aligning a plurality of sheet-shaped fiber assemblies, which are continuous in a length direction, so as to be next to each other in a width direction; a second fiber assembly provided so as to overlap the first fiber assembly and made by aligning a plurality of sheet-shaped fiber assemblies, which are continuous in the length direction, so as to be next to each other in the width direction; and a core material formed in a flat plate shape by winding up the first fiber assembly and the second fiber assembly continuously from inside toward outside while being displaced by a predetermined amount Xb in the width direction.
摘要:
A highly reliable vacuum heat insulating material having excellent processability, usability and heat insulating performance and a heat insulating box using the vacuum heat insulating material are provided. A vacuum heat insulating material related to the present invention includes: a core material structured by a laminated structure of an organic fiber assembly formed by forming an organic fiber into a sheet shape and cutting an end face with a predetermined length, and having a core material opening portion formed by a through hole or a notch with cutting; a gas-barrier outer cover material containing the core material inside, having a sealing portion for sealing surrounding of the sheet-shaped organic fiber assembly and surrounding of the core material opening portion, and hermetically sealing an inside with almost vacuum status by sealing the sealing portion; and an outer cover material opening portion provided at the outer cover material under a status in which the sealing portion provided at the surrounding of the sheet-shaped organic fiber assembly and the surrounding of the core material opening portion is sealed, being a through hole or a notch which is smaller than the core material opening portion with a sealed amount, and a long fiber being equal to or longer than a length of the sheet is used for the organic fiber.
摘要:
A superconductivity utilizing support mechanism comprises a superconductive coil and a ferromagnetic body. One of the ferromagnetic body, so constituted as to slide in a direction of a center axis of the superconductive coil, and the superconductive coil, so constituted as to slide in a direction of the center axis thereof, is floated and supported relative to the other by axial magnetic attraction caused by a center plane of the superconductive coil and a center plane of the ferromagnetic body moving apart from each other.
摘要:
A navigation apparatus of the invention includes a display portion that displays a guidance screen and a removably installed recording medium, the navigation apparatus being provided in a vehicle and guiding the vehicle along a guidance path. When candidate site data created in an external apparatus has been stored on the storage medium, a screen for selectively setting the end point of the guidance path based on the candidate site data is displayed in the display portion, and when setting the end point, a guidance path that arrives at the end point is calculated. The candidate site data includes information related to one or a plurality of locations that have been designated in advance by a user of the navigation apparatus, and the end point is selected from the one or plurality of locations.
摘要:
In an antenna device of the present invention, a plurality of antennas 21 are connected to a radio module 41 through respective coaxial cables 22, and one or more of the antennas 21 in good communication conditions can be selected by the radio module 41. An upper cabinet 2 is pivoted to a lower cabinet 4 through a three-dimensional joint 3. The radio module 41 is contained in the lower cabinet 4, while the plurality of antennas 21 are contained in the upper cabinet 2. The plurality of coaxial cables 22 extending from the plurality of antennas 21 are tied in a bundle to pass through a through hole 34 provided in the three-dimensional joint 3, and are connected to the radio module 41.
摘要:
The present invention relates to a radio wave-transmitting, wavelength-selective plate, which is characterized in that a layer composed of Ag fine particles is formed and that the central portions of the Ag fine particles contain an alloy (Ag alloy) formed of Ag and a metal which forms a homogeneous solid solution with Ag (hereinafter referred to as a homogeneous solid solution metal).
摘要:
A frequency selective plate which is produced by coating an Ag layer dispersed with Ag particles on a transparent substrate. The Ag layer is formed by depositing an Ag continuous layer on the substrate and heating the Ag continuous layer to varying into Ag particles or by depositing an Ag continuous layer on the heated substrate. The frequency selective plate performs high transparency of radio waves and visible rays while sufficiently reflecting near-infrared rays of solar radiation.