Abstract: An object of the present invention is to provide a water level measurement device and a shoreline extraction method each of which is capable of stably measuring the water level. A pixel selection unit (11) selects a pixel of interest (302) from a designated area (301) designated from a captured image (300), and an identification image extraction unit (12) extracts identification images (303), (304) each coming in contact with the pixel of interest (302). The identification unit (13) calculates an identification strength indicating a degree to which an area corresponding to each of the identification images (303), (304) is a water area, on a basis of the result of machine learning related to identification between the water area and a non-water area.

Abstract: An object of the present invention is to provide a water level measurement device and a shoreline extraction method each of which is capable of stably measuring the water level. A pixel selection unit (11) selects a pixel of interest (302) from a designated area (301) designated from a captured image (300), and an identification image extraction unit (12) extracts identification images (303), (304) each coming in contact with the pixel of interest (302). The identification unit (13) calculates an identification strength indicating a degree to which an area corresponding to each of the identification images (303), (304) is a water area, on a basis of the result of machine learning related to identification between the water area and a non-water area.

Abstract: This in-vehicle antenna to be used for wireless communication of a vehicle includes a horizontally polarized antenna, and a vertically polarized antenna that is separated from the horizontally polarized antenna by a predetermined distance. The in-vehicle antenna obtains, from among a plurality of signals received using the horizontally polarized antenna and the vertically polarized antenna, a plurality of signals transmitted at one time using a polarization technology.

Abstract: This in-vehicle antenna to be used for wireless communication of a vehicle includes a horizontally polarized antenna, and a vertically polarized antenna that is separated from the horizontally polarized antenna by a predetermined distance. The in-vehicle antenna obtains, from among a plurality of signals received using the horizontally polarized antenna and the vertically polarized antenna, a plurality of signals transmitted at one time using a polarization technology.

Abstract: A method of producing a glass preform by depositing silica powder that contains silica particles on a starting material includes a transferring step, a disaggregating step, and a depositing step. The transferring step includes transferring the silica powder. The disaggregating step includes disaggregating and dispersing agglomerates of the silica particles contained in the silica powder while being transferred in the transferring step. The depositing step includes depositing the silica powder, which is transferred and is obtained by disaggregating and dispersing the agglomerates of the silica particles, on the starting material.

Abstract: An optical power supply type sensing system includes: an optical directivity coupler (6) mounted in a sensor unit (1); a photo-electric converter (4) connected to a first optical fiber (5) among the first to the third optical fiber (5, 7, 8) connected to the optical directivity coupler (6); an optical output device (3) connected to the second optical fiber (7); and a measurement device (10) connected to the third optical fiber (8) drawn out of the sensor unit (1).

Abstract: An electric furnace extending method and apparatus for an optical fiber glass body alignment when connecting the extension use body and pulling member and making it possible to immediately start the extension after the fusing of the connection portion. A centering mechanism for centering the free end portion of the body and member on the furnace center side is provided between the furnace pipe of the electric furnace and grips of the extension use glass body and between the furnace pipe and the pulling member. The free end portion is centered by this centering mechanism, then the gripped sides of the body and member are fixed, the front ends of the two free end portions are abutted and fused and bonded at the highest temperature portion inside the electric furnace, then the highest temperature portion is moved to the extension portion of the glass body side and the extending of the glass body is commenced.

Abstract: An optical power supply type sensing system includes: an optical directivity coupler (6) mounted in a sensor unit (1); a photo-electric converter (4) connected to a first optical fiber (5) among the first to the third optical fiber (5, 7, 8) connected to the optical directivity coupler (6); an optical output device (3) connected to the second optical fiber (7); and a measurement device (10) connected to the third optical fiber (8) drawn out of the sensor unit (1).

Abstract: According to the present invention, there is provided a security thread whose existence is not clarified, which is prevented beforehand from being removed, which can be attached even to a form of a commodity heretofore regarded as difficult, and whose use purpose range is enlarged, and the security thread can be constituted by a core member comprising a soft magnetic fiber (1) or the soft magnetic fiber and a core thread (4), and a cover member (2, 3) comprising a nonmetal material to cover the core member, constituted by covering the core member comprising the soft magnetic fiber or the soft magnetic fiber and core thread and a semi-hard magnetic material (10?) with the cover member, or constituted by covering the soft magnetic fiber or the core member comprising the soft magnetic fiber and a thermal welding thread (9) with the cover member.

Abstract: A thin film deposition method for producing an optical film with an optical characteristic on a deposition substrate in a vacuum chamber is provided. The method may include preparing in the vacuum chamber a deposition source which is a source of the film producing material; holding the deposition substrate with a substrate holding member; arranging the deposition substrate and the deposition source such that, given that a vertical distance from the center of the deposition substrate to the deposition source is defined as ZK and a horizontal distance between the deposition substrate and the deposition source as Xk, Xk/Zk is set to satisfy a following equation 0.48?Xk/Zk?0.78; rotating the deposition substrate on a rotational axis which is orthogonal to the deposition substrate; and evaporating the film producing material of the deposition source to perform deposition on the deposition substrate.

Abstract: An attaching tool of a display tag or the like, having a coated fiber which has a plastic outer skin formed on the circumference of the core yarn material which is a soft magnetic fiber reacting on magnetism or a composite yarn consisting of the soft magnetic fiber and a fiber having a composition different from the soft magnetic fiber, a first member fixed to one end of the coated fiber, and a second member fixed to the other end of the same.

Abstract: An electric furnace extending method and apparatus for an optical fiber glass body alignment when connecting the extension use body and pulling member and making it possible to immediately start the extension after the fusing of the connection portion. A centering mechanism for centering the free end portion of the body and member on the furnace center side is provided between the furnace pipe of the electric furnace and grips of the extension use glass body and between the furnace pipe and the pulling member. The free end portion is centered by this centering mechanism, then the gripped sides of the body and member are fixed, the front ends of the two free end portions are abutted and fused and bonded at the highest temperature portion inside the electric furnace, then the highest temperature portion is moved to the extension portion of the glass body side and the extending of the glass body is commenced.

Abstract: A fixture of an indication tag has a magnetic body and is used as a marker for preventing, for example, items in a store or furnishings in public facilities from being removed without permission. The fixture is formed by connecting an engagement male portion (2) to one end side of a filamentous coupling portion (4) and an engagement female portion (3) to the other end side to form a loop (R) by engaging the engagement male portion (2) and the engagement female portion (3). The filamentous coupling portion (4) is formed with a filament (40) having a soft magnetic material fiber (41) in order to obscure the location of the magnetic body for the marker preventing it from being removed.

Abstract: An electric furnace extending method and apparatus for an optical fiber glass body alignment when connecting the extension use body and pulling member and making it possible to immediately start the extension after the fusing of the connection portion. A centering mechanism for centering the free end portion of the body and member on the furnace center side is provided between the furnace pipe of the electric furnace and grips of the extension use glass body and between the furnace pipe and the pulling member. The free end portion is centered by this centering mechanism, then the gripped sides of the body and member are fixed, the front ends of the two free end portions are abutted and fused and bonded at the highest temperature portion inside the electric furnace, then the highest temperature portion is moved to the extension portion of the glass body side and the extending of the glass body is commenced.

Abstract: In an optical device manufacturing method according to the present invention, a metal film is formed on a side surface of a bare fiber, a film is formed on an end face of the bare fiber, and, thereafter, the bare fiber is inserted into a ferrule until the end face of the bare fiber on which the film was formed is protruded from an end face of the ferrule, and then, the bare fiber is secured to the ferrule. In an optical device according to the present invention, a bare fiber having a side surface on which a metal film was formed is inserted into and secured to a ferrule, and an end face of the bare fiber is protruded from an end face of the ferrule, and a distance L between the end faces satisfies a relationship L<4×d (outer diameter of the bare fiber), and a film is formed on the end face of the bare fiber.

Abstract: An audio signal decoding and encoding device has a decoding device having a stream separating circuit, a control signal decoding circuit for outputting blocking information, a decoding and dequantizing circuit, a frequency-time converting circuit, and an information multiplexing circuit for multiplexing a time domain signal and the blocking information and an encoding device having an information separating circuit for separating the time domain signal and the blocking information from a multiplex signal, a time-frequency converting circuit, a psycho-acoustic model circuit, a control signal encoding circuit, a quantizing and encoding circuit, a stream multiplexing circuit, and an output control circuit for controlling output timing of an encoded stream on the basis of the blocking information so that the processing delay time within the device becomes fixed.

Abstract: The present invention provides a thin film deposition apparatus for producing an optical film with an optical characteristic on a deposition substrate in a vacuum chamber by depositing a film producing material on the deposition substrate, comprising:

Abstract: The present invention concerns a fixture of indication tag or the like having a magnetic body for marker for preventing commodities in a store or furnishings of public facilities or others from being taken away without leave, formed by connecting an engagement male portion (2) to one end side of a filamentous coupling portion (4) and an engagement female portion (3) to the other end side, and forming a loop (R) by engaging the engagement male portion (2) and the engagement female portion (3), wherein the filamentous coupling portion (4) is formed with a filament (40) having a soft magnetic material fiber (41), in order to obscure the location of the magnetic body for marker and prevent it from being removed.

Abstract: In an optical device manufacturing method according to the present invention, a metal film is formed on a side surface of a bare fiber, a film is formed on an end face of the bare fiber, and, thereafter, the bare fiber is inserted into a ferrule until the end face of the bare fiber on which the film was formed is protruded from an end face of the ferrule, and then, the bare fiber is secured to the ferrule. In an optical device according to the present invention, a bare fiber having a side surface on which a metal film was formed is inserted into and secured to a ferrule, and an end face of the bare fiber is protruded from an end face of the ferrule, and a distance L between the end faces satisfies a relationship L<4×d (outer diameter of the bare fiber), and a film is formed on the end face of the bare fiber.

Abstract: An electric furnace extending method and apparatus for an optical fiber glass body alignment when connecting the extension use body and pulling member and making it possible to immediately start the extension after the fusing of the connection portion. A centering mechanism for centering the frame and portion of the body and member on the furnace center side is provided between the furnace pipe of the electric furnaces and grips of the extension use glass body and between the furnace pipe and the pulling member. The free end portion is centered by this centering mechanism, then the gripped sides of the body and member are fixed, the front ends of the two free end portions are abutted and fused and bonded at the highest temperature portion inside the electric furnace, then the highest temperature portion is moved to the extension portion of the glass body side and the extending of the glass body is commenced.