Abstract: There is provided an underfloor duct which enables inspection of electric equipment to be easily performed, has a simple structure, and hardly allows water to intrude into a duct passage. An underfloor duct according to an aspect of the present invention is an underfloor duct, provided under a floor of a railcar, for storing electric equipment including a cable. The underfloor duct includes: a box having a frame that projects upward, and an opening that opens downward; and a lid that closes the opening and forms a duct passage between the lid and the box. An end portion of the box is located outside an end portion of the lid in a car width direction.

Abstract: A connecting hanger bolt according to an aspect of the present invention is a hanger bolt which is inserted into a hanging groove rail having an opening narrower than the outer diameter of a bolt head and extending in a hanging groove rail longitudinal direction and from which a device is hangable. The connecting hanger bolt includes: a plurality of bolts which move in the hanging groove rail longitudinal direction in the hanging groove rail and whose shaft portions pass through the opening; and a connecting member which connects the plurality of bolts to each other, and keeps an interval in the hanging groove rail longitudinal direction between the plurality of bolts adjacent to each other.

Abstract: There is provided a horn device for a railcar capable of delivering horn sound to a long distance in a traveling direction and being less likely to spread sound in a car width direction. A horn device for a railcar according to one aspect of the present invention includes: a whistle portion that is supplied with compressed air to make horn sound in a traveling direction; a duct located in the traveling direction of the whistle portion and having an opening portion at an end portion in the traveling direction; and at least one partition plate that is disposed perpendicularly to a car width direction, extends in a car longitudinal direction, and divides the interior of the duct.

Abstract: A wire supporting structure supporting an electric wire extending between a bogie and a carbody in a railcar includes: a support supported by the carbody and including a fitted portion; a carbody-side coupling device supported by the carbody; an electric wire connected to an electrical apparatus of the bogie; an electric wire-side coupling device provided at a tip end of the electric wire and connected to the carbody-side coupling device; and a bracket connected to a part of the electric wire, the part being located close to the electric wire-side coupling device, the bracket including a fitting portion fitted to the fitted portion of the support, the bracket being supported by the support with the fitting portion fitted in the fitted portion.

Abstract: Provided is a sheet holder capable of suitably holding a cloth sheet medium while a plotter performs processing. The sheet holder is used for a plotter that performs processing on a cloth sheet medium. The sheet holder includes a holder base material on an upper surface of which the sheet medium is mounted, and an engaging sheet attached onto the holder base material and including a plurality of hook-shaped engaging elements to be engaged with the sheet medium. The engaging elements are arranged so as to be arranged in a plane shape at predetermined intervals on the holder base material.

Abstract: In an image projection device including a laser beam source and a diffractive optical element provided on an optical path of a laser beam L from the laser beam source, a transparent member having a refractive index higher than that of an area ahead of an emission surface on the optical path of the laser beam L and a diffractive optical element is formed on an emission surface of the transparent member. The laser beam L is obliquely incident on the diffractive optical element. The diffractive optical element generates a diffraction image in an area which is not overlapped with zeroth order light LR of the laser beam L and an area occupied by a conjugate image, and is arranged in a direction to irradiate a screen with diffracted light forming the diffraction image while substantially eliminating the zeroth order light and the diffracted light forming the conjugate image.

Abstract: A method of manufacturing a high aspect ratio structure includes: a hole forming step of forming a plurality of holes in at least one principal surface of a substrate; a resist forming step of forming a first area with a resist layer and a second area without the resist layer on the principal surface provided with the plurality of holes after the hole forming step ends; and a concave portion forming step of immersing the substrate into an etching solution to form a concave portion in the substrate corresponding to the second area.

Abstract: An attaching metal fitting is used to attach an underfloor device to an underframe of a railcar including a beam member and includes: a first member located at a lower side of a projecting portion projecting in a horizontal direction at a lower end portion of the beam member and formed integrally with or separately from the beam member; and a second member located at an upper side of the projecting portion, wherein: the first member includes a first supporting portion overlapping the projecting portion from below to be fixed to the projecting portion; the second member includes a second supporting portion overlapping the projecting portion from above to be fixed to the projecting portion; and an upper surface of the second supporting portion supports the underfloor device with the projecting portion sandwiched between the first supporting portion and the second supporting portion.

Abstract: In respective methods for manufacturing a high aspect ratio structure and an ultrasonic probe, a plurality of holes extending in a direction crossing a main surface of a substrate are formed, a plurality of first regions and second regions excluding the first regions from the main surface are periodically defined, and partition walls between the plurality of holes formed in the substrate corresponding to the first regions are removed by etching so that part of each of the partition walls within a predetermined range excluding a bottom portion is left. A high aspect ratio structure and an X-ray imaging apparatus include, over a side wall, a porous member including a plurality of holes extending in a direction crossing a grating surface within a predetermined range excluding a bottom portion in each of a plurality of recesses in a grating.

Abstract: A wire supporting structure supporting an electric wire extending between a bogie and a carbody in a railcar includes: a support supported by the carbody and including a fitted portion; a carbody-side coupling device supported by the carbody; an electric wire connected to an electrical apparatus of the bogie; an electric wire-side coupling device provided at a tip end of the electric wire and connected to the carbody-side coupling device; and a bracket connected to a part of the electric wire, the part being located close to the electric wire-side coupling device, the bracket including a fitting portion fitted to the fitted portion of the support, the bracket being supported by the support with the fitting portion fitted in the fitted portion.

Abstract: A method for operating a data processing system to compute the response of a DUT to a modulated input signal is disclosed. The method includes determining a set of parameters for a first model of the DUT from a plurality of measurements of output values from the DUT, each output value includes a measurement of a gain and phase shift provided by the DUT when the DUT is stimulated with a single tone input signal having a frequency in a frequency range determined by the modulated signal. The method also determines a second model that characterizes noise generated by the DUT at the single tone input signals. A performance parameter for an output signal that would be obtained by applying the modulated input signal to an input of the DUT, and receiving the output of the DUT is then determined from the first and second models.

Abstract: A high-aspect ratio structure production method and an ultrasonic probe production method of the present invention include: forming, in a principal surface of a substrate, a plurality of pores each extending in a direction intersecting the principal surface; plugging, among the plurality of pores, one or more pores formed in a first region; and forming a recess in a second region by a wet etching process. A high-aspect ratio structure includes a grating having a plurality of convex portions, wherein each of the plurality of convex portions is provided with a plugging member plugging a plurality of pores formed therein in a thickness direction of the structure.

Abstract: There is provided a hanger bolt which can reduce the burden of positioning work and which hardly corotates with a nut upon nut coupling. A connecting hanger bolt according to an aspect of the present invention is a hanger bolt which is inserted into a hanging groove rail having an opening narrower than the outer diameter of a bolt head and extending in a hanging groove rail longitudinal direction and from which a device is hangable. The connecting hanger bolt includes: a plurality of bolts which move in the hanging groove rail longitudinal direction in the hanging groove rail and whose shaft portions pass through the opening; and a connecting member which connects the plurality of bolts to each other, and keeps an interval in the hanging groove rail longitudinal direction between the plurality of bolts adjacent to each other.

Abstract: There is provided a horn device for a railcar capable of delivering horn sound to a long distance in a traveling direction and being less likely to spread sound in a car width direction. A horn device for a railcar according to one aspect of the present invention includes: a whistle portion that is supplied with compressed air to make horn sound in a traveling direction; a duct located in the traveling direction of the whistle portion and having an opening portion at an end portion in the traveling direction; and at least one partition plate that is disposed perpendicularly to a car width direction, extends in a car longitudinal direction, and divides the interior of the duct.

Abstract: There is provided an underfloor duct which enables inspection of electric equipment to be easily performed, has a simple structure, and hardly allows water to intrude into a duct passage. An underfloor duct according to an aspect of the present invention is an underfloor duct, provided under a floor of a railcar, for storing electric equipment including a cable. The underfloor duct includes: a box having a frame that projects upward, and an opening that opens downward; and a lid that closes the opening and forms a duct passage between the lid and the box. An end portion of the box is located outside an end portion of the lid in a car width direction.

Abstract: A metal grating structure for X-ray includes a first silicon part having a plate form or a layer form, and a grating portion, wherein the grating portion includes a plurality of second silicon parts formed on the first silicon part, and a plurality of metal parts interposed between the respective adjacent second silicon parts, each of the plurality of metal parts having a deposition start tip part extending toward an inside of the first silicon part.

Abstract: An X-ray metal grating structure of the present invention has a grating region in which a plurality of first structural portions are periodically provided, wherein an air gap is formed between each of the plurality of first structural portions and a second structural portion as a remaining part of the grating region other than the plurality of first structural portions. Thus, the X-ray metal grating structure of the present invention is formed as a grating structure having high flatness. A production method therefor comprises a step of forming the air gap between the first structural portion and the second structural portion. Thus, the production method makes it possible to produce an X-ray metal grating structure having high flatness. The present invention further provides an X-ray metal grating unit and an X-ray imaging device each comprising the X-ray metal grating structure.

Abstract: In an image projection device including a laser beam source and a diffractive optical element provided on an optical path of a laser beam L from the laser beam source, a transparent member having a refractive index higher than that of an area ahead of an emission surface on the optical path of the laser beam L and a diffractive optical element is formed on an emission surface of the transparent member. The laser beam L is obliquely incident on the diffractive optical element. The diffractive optical element generates a diffraction image in an area which is not overlapped with zeroth order light LR of the laser beam L and an area occupied by a conjugate image, and is arranged in a direction to irradiate a screen with diffracted light forming the diffraction image while substantially eliminating the zeroth order light and the diffracted light forming the conjugate image.

Abstract: A method of designing an electroluminescent device includes preparing a reference device including a construction of an electroluminescent device and a desired analyzed device including a construction of an electroluminescent device, performing quantum optical analysis, electromagnetic field analysis, and ray trace with thicknesses and complex relative permittivities of a first transparent member, a first electrode, a first functional layer, a second functional layer, an emissive layer, and a second electrode as well as a position of a light-emitting point in the emissive layer and a distribution of light-emitting points in the emissive layer being used as design variables, calculating a “ratio of light extraction efficiency” between the reference device and the analyzed device by computing efficiency of light extraction from the emissive layer into the transparent member or air in both of the reference device and the analyzed device, finding relation of the thickness and the complex relative permittivity of

Abstract: In respective methods for manufacturing a high aspect ratio structure and an ultrasonic probe, a plurality of holes extending in a direction crossing a main surface of a substrate are formed, a plurality of first regions and second regions excluding the first regions from the main surface are periodically defined, and partition walls between the plurality of holes formed in the substrate corresponding to the first regions are removed by etching so that part of each of the partition walls within a predetermined range excluding a bottom portion is left. A high aspect ratio structure and an X-ray imaging apparatus include, over a side wall, a porous member including a plurality of holes extending in a direction crossing a grating surface within a predetermined range excluding a bottom portion in each of a plurality of recesses in a grating.