Abstract: The invention relates to a method for producing acrylonitrile which includes a vapor phase catalytic ammoxidation process of performing vapor phase catalytic ammoxidation by bringing a source gas containing propylene, molecular oxygen, and ammonia into contact with a fluidized bed catalyst to obtain acrylonitrile. The method is characterized in that the fluidized bed catalyst is a catalyst containing iron, antimony, and tellurium, and the vapor phase catalytic ammoxidation process is performed while maintaining an adsorbed amount of ammonia per specific surface area (m2/g) of the fluidized bed catalyst in the range of 0.01 to 0.22 ?mol/m2. According to the method for producing acrylonitrile of the invention, it is possible to stably maintain a high acrylonitrile yield over a long period of time.

Abstract: The invention relates to a method for producing acrylonitrile which includes a vapor phase catalytic ammoxidation process of performing vapor phase catalytic ammoxidation by bringing a source gas containing propylene, molecular oxygen, and ammonia into contact with a fluidized bed catalyst to obtain acrylonitrile. The method is characterized in that the fluidized bed catalyst consists of particles containing Fe, Sb, and Te, and the vapor phase catalytic ammoxidation process is performed while maintaining a B/A in the range of 2.0 to 5.0, where A denotes an atomic ratio of Te/Sb in a bulk composition of the fluidized bed catalyst and B denotes an atomic ratio of Te/Sb in a surface composition of the particles of the fluidized bed catalyst. According to the method for producing acrylonitrile of the invention, it is possible to stably maintain a high acrylonitrile yield over a long period of time.

Abstract: A displacement sensor includes a light source unit configured to apply light with different plural wavelengths in a direction oblique to a measurement region of a planar measured object, a spectroscope configured to measure spectral distribution of light reflected by the measurement region, a feature amount extracting module configured to extract a feature amount of the spectral distribution, and a displacement calculating module configured to calculate displacement of the measurement region based on the extracted feature amount and a relation between displacement and a feature amount acquired previously.

Abstract: A multichannel photometric measurement apparatus according to one embodiment includes: a single signal generator for generating an initial signal, the initial signal containing a harmonic component for collectively generating a plurality of modulation signals; a light emitting device including a plurality of light sources that are respectively drivable by each of the plurality of modulation signals having different frequencies; a light detector for detecting a plurality of kinds of light emitted from the light emitting device; and discriminating means for discriminating a detected signal output from the light detector per frequency domain of each of the different frequencies for each of the modulation signals.

Abstract: There is provided a method of measuring a physical thickness of each of layers of a multilayer film, based on an optical thickness thereof. The method includes: (a) setting refractive indexes of the layers; (b) calculating a coefficient matrix using the refractive indexes; (c) providing light to the multilayer film so as to measure the optical thickness based on the light reflected by the multilayer film; and (d) calculating the physical thickness, based on the optical thickness and the coefficient matrix.

Abstract: A multichannel photometric measurement apparatus according to one embodiment includes: a single signal generator for generating an initial signal, the initial signal containing a harmonic component for collectively generating a plurality of modulation signals; a light emitting device including a plurality of light sources that are respectively drivable by each of the plurality of modulation signals having different frequencies; a light detector for detecting a plurality of kinds of light emitted from the light emitting device; and discriminating means for discriminating a detected signal output from the light detector per frequency domain of each of the different frequencies for each of the modulation signals.

Abstract: There is provided a method of measuring a physical thickness of each of layers of a multilayer film, based on an optical thickness thereof. The method includes: (a) setting refractive indexes of the layers; (b) calculating a coefficient matrix using the refractive indexes; (c) providing light to the multilayer film so as to measure the optical thickness based on the light reflected by the multilayer film; and (d) calculating the physical thickness, based on the optical thickness and the coefficient matrix.

Abstract: A film thickness measurement apparatus may include a spectrum acquisition unit that irradiates a light onto a film and acquires a spectrum of a reflection light or a transmission light, a power spectrum calculating unit that calculates a power spectrum, a film thickness calculating unit that detects a peak position of the power spectrum and calculates a thickness of the film, a measurement quality calculating unit that calculates a measurement quality of the thickness, a measurement quality determining unit that determines whether the thickness is valid or invalid, and a film thickness output unit that outputs the thickness if the measurement quality determining unit determines that the thickness is valid.

Abstract: A film thickness measuring apparatus of the present invention includes: a light source that emits white light to be irradiated onto a multilayer thin film; a spectroscope that disperses reflected light obtained as a result of irradiating the white light onto the multilayer thin film in order to obtain reflectance spectrums; and a computation section, said computation section including: a setting section that sets a plurality of wavelength ranges for the reflectance spectrums; a first conversion section that obtains wavenumber range reflectance spectrums by re-sequencing, among the reflectance spectrums, reflectance spectrums in the plurality of wavelength ranges set in said setting section at equal intervals, respectively; a second conversion section that converts the wavenumber range reflectance spectrums in the plurality of wavelength ranges obtained in said first conversion section into power spectrums, respectively; and a calculation section that obtains a film thickness of the multilayer thin film based

Abstract: A film thickness measuring apparatus of the present invention includes: a light source that emits white light to be irradiated onto a multilayer thin film; a spectroscope that disperses reflected light obtained as a result of irradiating the white light onto the multilayer thin film in order to obtain reflectance spectrums; and a computation section, said computation section including: a setting section that sets a plurality of wavelength ranges for the reflectance spectrums; a first conversion section that obtains wavenumber range reflectance spectrums by re-sequencing, among the reflectance spectrums, reflectance spectrums in the plurality of wavelength ranges set in said setting section at equal intervals, respectively; a second conversion section that converts the wavenumber range reflectance spectrums in the plurality of wavelength ranges obtained in said first conversion section into power spectrums, respectively; and a calculation section that obtains a film thickness of the multilayer thin film based

Abstract: A polymer electrolyte fuel cell of the present invention includes a hydrogen ion-conductive polymer electrolyte membrane, an anode and a cathode sandwiching the hydrogen ion-conductive polymer electrolyte membrane, an anode-side conductive separator plate having a gas flow channel for supplying a fuel gas to the anode, and a cathode-side conductive separator plate having a gas flow channel for supplying an oxidant gas to the cathode.

Abstract: The invention provides a liquid crystal display device with an LCD cover comprising: a conductive LCD cover for covering a rear surface of an LCD module for displaying information on a screen; and a circuit board mounted on the LCD cover; wherein a rear surface of the LCD cover is provided with an opening corresponding to the size of the circuit board, the circuit board mounted so as to cover the opening, and the distance between the rear surface of the LCD cover and the rear surface of the LCD module is set to at least an insulation distance corresponding to a voltage generated in a circuit formed on the circuit board.

Abstract: On connection of a control board and an external apparatus, an externally connecting cable which is drawn out from a rear surface of the casing can be drawn out without interfering with other components. A connector terminal 32 which connects the external apparatus is mounted to be inclined with respect to a control board 30 mounted substantially vertically in a cabinet 5, and is mounted along an inclined surface 13A formed in a downward direction in a stepped recessed part 13 of a back cabinet 5B. Thereby, a cable 31 which is connected to the connector terminal 32 does not interfere with a cover portion 13C of the stepped recessed part 13, which covers a support column part 17 of a stand 15.

Abstract: A polymer-electrolyte fuel cell having: an electrolyte membrane-electrode assembly having a polymer-electrolyte membrane and a pair of gas-diffusion electrodes sandwiching the polymer-electrolyte membrane; a first electroconductive separator having a gas channel for supplying an oxidant gas to one of the gas-diffusion electrodes of said pair; and a second electroconductive separator having a gas channel for supplying a fuel gas to the other of the gas-diffusion electrodes of the pair. The polymer-electrolyte fuel cell is characterized in that: at least one of the first and second electroconductive separators has a metal substrate and an electroconductive resin layer on the substrate and contacting the electrolyte membrane-electrode assembly; and the electroconductive resin layer has a resin having water-repellant or basic radicals, and an electroconductive particulate substance which has a carbon powder of a specific surface area of less than 100 m2/g.

Abstract: The invention provides an electronic device with a display tube having excellent impact-resistant property, capable of preventing a display tube mounted on a circuit board from tilting toward or falling on the circuit board upon receiving impact when the device is dropped or during mounting operations. A fluorescent display tube 10 is mounted on a circuit board 3 on which various electronic components 4 are mounted, and a switch 20 that does not constitute a circuit with a circuit pattern 6 on the circuit board 3 is soldered and fixed between the fluorescent display tube 10 and the circuit board 3.

Abstract: The invention provides a liquid crystal display device capable of mounting a recording/playing device of a DVD etc. on a casing of the liquid crystal display device easily at low cost, the device capable of having the recording/playing device and recording/playing device manipulation buttons etc. mounted easily thereto by changing a part of the design of a mounting cover attached to a casing of the liquid crystal display device. A mounting cover 14 for fixing an LCD device 13 inside a casing 5 of a liquid crystal television receiver 1 is provided, the cover 14 provided with LCD manipulation buttons 10 for manipulating the LCD device 13.

Abstract: The invention provides a liquid crystal display device which allow a plurality of liquid crystal display panels of different mounting specifications to be fixed using a common mounting cover. Mounting sections such as screw holes 13A, 13B, and 13C are provided to allow different first, second, and third liquid crystal display panels 10A, 10B, and 10C to be attached to a mounting cover 2. It is possible to fix the first, the second, or the third liquid crystal display panel 10A, 10B, or 10C of different mounting specifications to a common mounting cover 4, fix any one of different liquid crystal display panels to the mounting cover 2, provide excellent versatility, reduce the number of parts and thereby facilitate parts control and provide excellent cost efficiency.

Abstract: To provide a liquid crystal television which is small in size and low in price, by designing the construction of the control circuit boards of a liquid crystal display device including a recording/reproducing device such as a DVD or the like and the layout construction thereof. The present invention is characterized by installing three main boards comprising: a television circuit board mounted with an analog control circuit for power supply processing, audio video signal processing, etc., a circuit board for a DVD circuit mounted with a DVD driving control circuit and a liquid crystal circuit board mounted with a liquid crystal digital control circuit on the back of a liquid crystal panel unit in a liquid crystal television device mounted with a recording/reproducing device such as a DVD or the like.

Abstract: A polymer electrolyte fuel cell comprises a separator plate having a gas channel for supplying an oxidant gas or a fuel gas to an electrode, said separator plate comprising a metal plate, a conductive film formed on the surface of the metal plate, and a diffused layer resulting from diffusion of a material of the conductive film formed between the metal plate and the conductive film. The fuel cell produces stable output free from corrosion or dissolution of the metal plate even in a long-term operation.

Abstract: A polymer electrolyte fuel cell stack that includes a cell laminate having a plurality of unit cells, which are laid one upon another and each of which includes a polymer electrolyte membrane, a pair of electrodes arranged across the polymer electrolyte membrane and having respective catalytic reaction layers, a separator having means for feeding a supply of fuel gas containing hydrogen gas to one of the electrodes, another separator having means for feeding a supply of oxidant gas to the other of the electrodes, and a manifold for feeding the supply of fuel gas or the supply of oxidant gas to the respective electrode and disposed on a side face of each unit cell. In the polymer electrolyte fuel cell stack, a sealing portion is disposed at least in the vicinity of each electrode. The polymer electrolyte fuel cell stack has excellent durability and productivity.