Abstract: A method for determining a heating line for bending a steel plate includes the steps of: placing a virtual pattern on a virtual plate; rolling the plate along a frame line from a reference position to contact the plate at two points on the plate; rolling the steel plate back to the reference position; obtaining straight lines connecting the contact points; determining a heating point relative to a reference point; repeating the same steps while contacting the contact points on a reference point side; drawing straight lines from a certain heating point on a certain line to heating points on other lines; examining the degree of parallelism between each straight line and a roller line; grouping the relevant heating points as the same group; and connecting the heating points of the same group by a straight line or a curve.

Abstract: A method and a system for determining a heating point and a heating line in steel plate bending place a virtual wooden pattern on a virtual steel plate; roll the wooden pattern or steel plate along a frame line from a reference position to contact the wooden pattern and steel plate at two points A, B on the steel plate and C, D on the wooden pattern; roll the wooden pattern or steel plate in the reverse direction for return to the reference position; obtain straight lines U, V connecting the contact points A, B and C, D, respectively; determine a heating point relative to a reference point based on an intersection point of the straight lines U, V; repeat the same steps while contacting the contact points A, C on a reference point side to use their contact point as a new reference point, to determine respective heating points along a specific line up to the end of the steel plate; draw straight lines from a certain heating point on a certain line to heating points on other lines based on the determined heating

Abstract: A method and a system for determining a heating point and a heating line in steel plate bending place a virtual wooden pattern on a virtual steel plate; roll the wooden pattern or steel plate along a frame line from a reference position to contact the wooden pattern and steel plate at two points A, B on the steel plate and C, D on the wooden pattern; roll the wooden pattern or steel plate in the reverse direction for return to the reference position; obtain straight lines U, V connecting the contact points A, B and C, D, respectively; determine a heating point relative to a reference point based on an intersection point of the straight lines U, V; repeat the same steps while contacting the contact points A, C on a reference point side to use their contact point as a new reference point, to determine respective heating points along a specific line up to the end of the steel plate; draw straight lines from a certain heating point on a certain line to heating points on other lines based on the determined heating

Abstract: A method and a system for determining a heating point and a heating line in steel plate bending place a virtual wooden pattern on a virtual steel plate; roll the wooden pattern or steel plate along a frame line from a reference position to contact the wooden pattern and steel plate at two points A, B on the steel plate and C, D on the wooden pattern; roll the wooden pattern or steel plate in the reverse direction for return to the reference position; obtain straight lines U, V connecting the contact points A, B and C, D, respectively; determine a heating point relative to a reference point based on an intersection point of the straight lines U, V; repeat the same steps while contacting the contact points A, C on a reference point side to use their contact point as a new reference point, to determine respective heating points along a specific line up to the end of the steel plate; draw straight lines from a certain heating point on a certain line to heating points on other lines based on the determined heating

Abstract: A threshold arrangement capable of reducing a moiré pattern produced by an interference between the output resolution and halftone frequency of an image outputting apparatus is determined. Halftone dot image data is generated by a threshold arrangement determined up to a certain gradation, and low-frequency component data is extracted from the halftone dot image data by an FFT, a LPF, and an IFFT. The position of a threshold where the extracted low-frequency component data is smaller is determined as the position of the threshold for a next gradation. The process of determining the position of the threshold is a process in a real space, and can determine the position of the threshold for the next gradation accurately. The threshold arrangement thus determined minimizes a moiré pattern which is an unwanted low-frequency component in a gradation image that is generated using the threshold arrangement.

Abstract: A gradation-corrected image data is generated by converting an input gradation image data depending on conditions of an output machine and thereafter scanning a recording medium in the output machine with a light beam based on the gradation-corrected image data. Specifically, an amount-of-exposure distribution is calculated based on a shape of recording dots corresponding to input gradations and specification details of the light beam step. Then, a density distribution of an image on the recording medium is calculated from the calculated amount-of-exposure distribution and characteristics of density characteristics regarding an amount of exposure of the recording medium step. Output gradations recorded on the recording medium are calculated based on the calculated density distribution, generating an input/output gradation characteristic curve, from which a gradation corrective curve is generated as an inverse function.

Abstract: An air bag control system for passenger seat has a seated-state detection sensor provided in a seat, a proximity sensor that detects an object near an air bag apparatus, and an impact sensor that detects a deceleration at the time of an impact. If there is no detection made by the proximity sensor for a predetermined length of time after the seated-state detection sensor detects the seating of an occupant, a control device keeps the air bag apparatus in an operable state after elapse of the predetermined length of time. If there is no detection made by the proximity sensor for the predetermined length of time after the seated-state detection sensor makes detection, the control device ignores an on-state of the proximity sensor or a signal from the proximity sensor, and keeps the air bag apparatus in the operable state.

Abstract: Halftone-dot image data in a position space is converted into data in a frequency space by fast Fourier transform unit, and data including low-frequency noise components whose frequency is lower than the fundamental frequency component of halftone dots is extracted from the data in the frequency space by a low-pass filter. The extracted data including the frequency noise components is inversely converted into image data in the position space by an inverse fast Fourier transform unit. Pixels of the halftone-dot image data in positions which correspond to pixels including the noise components in the inversely converted image data are corrected by a corrector such that the noise components will be reduced. The correcting process is in the position space, and can simply be carried out.

Abstract: In the method, apparatus and the substance produced thereby: a plasma flame 1 is produced by a plasma torch 11; the plasma flame 1 is passed through a plasma flame furnace 21 which controls the heat of the plasma flame 1; then, the plasma flame 1 is injected into a reactor column 31 to heat the substance. The substance may be a particle. The plasma flame 1 has a wide flame area in which a temperature of flame is uniform.

Abstract: In the method, apparatus and the substance produced thereby: a plasma flame 1 is produced by a plasma torch 11; the plasma flame 1 is passed through a plasma flame furnace 21 which controls the heat of the plasma flame 1; then, the plasma flame 1 is injected into a reactor column 31 to heat the substance. The substance may be a particle. The plasma flame 1 has a wide flame area in which a temperature of flame is uniform.

Abstract: An automatic plate bending system using high frequency induction heating has many universal poles for bearing a steel plate, a member to be heated, by supporting it from below, the height positions of front end portions of the universal poles themselves being adjustable, and automatically moves a high frequency heating coil of a high frequency heating head above the steel plate, which is placed on the universal poles, along predetermined heating lines while retaining a constant clearance between the high frequency heating coil and the surface of the steel plate, whereby the steel plate is heated and automatically bent into a desired shape.

Abstract: Provided is a method for drying resin-used electronic parts which comprises enclosing resin-used electronic parts together with both an oxygen absorbent requiring no moisture for absorption of oxygen and a drying agent in a container having a gas barrier property and then sealing the container and removing oxygen and, preferably, then heating the sealed container. Thereby, no quality deterioration due to oxidation and degradation of a metal surface occurs in a drying step of resin-used electronic parts.

Abstract: Bundled and cut carbon fibers having a bulk density of from 450 g/l to 650 g/l, which are obtained by bundling carbon fibers having a yield of at least 0.9 g/m followed by cutting, and having a collapse initiating angle and funnel drop time of at most 65.degree. and at most 20 seconds, respectively.

Abstract: An automatic plate bending system using high frequency induction heating has many universal poles for bearing a steel plate, a member to be heated, by supporting it from below, the height positions of front end portions of the universal poles themselves being adjustable, and automatically moves a high frequency heating coil of a high frequency heating head above the steel plate, which is placed on the universal poles, along predetermined heating lines while retaining a constant clearance between the high frequency heating coil and the surface of the steel plate, whereby the steel plate is heated and automatically bent into a desired shape.

Abstract: A supercell is divided into halftone dot cells each with a highlight point at center and halftone dot cells each with a shadow point at center. Thresholds 0, 1, 2, 3, . . . assigned to pixels in the halftone dot cells each with a highlight point at center and thresholds N, N-1, N-2, N-3, . . . assigned to pixels in the halftone dot cells each with a shadow point at center are alternately determined, i.e., determined in the order of 0.fwdarw.N.fwdarw.1.fwdarw.N-1.fwdarw., . . . .fwdarw.3.fwdarw.N-3. When the density of an original image is high, the number of blackened pixels in the halftone dot cells each with a highlight point at center and the number of blank pixels in the halftone dot cells each with a shadow point at center are equalized to each other, thus preventing moire stripes from being produced which would otherwise be caused by a periodic change in the number of blackened pixels in the halftone dot cells.

Abstract: A raw material prepared by washing a phosphor powder containing a phosphor host material and an activator with an acid solution, followed by drying the washed powder, is heated within a thermal plasma at a temperature which permits partially melting the phosphor, followed by cooling and subsequently subjecting the resultant phosphor at 1200.degree. to 1700.degree. C., thereby manufacturing spherical phosphor particles having a concentration gradient in a radial direction.

Abstract: A supercell is divided into halftone dot cells each with a highlight point at center and halftone dot cells each with a shadow point at center. Thresholds 0, 1, 2, 3, . . . assigned to pixels in the halftone dot cells each with a highlight point at center and thresholds N, N-1, N-2, N-3, . . . assigned to pixels in the halftone dot cells each with a shadow point at center are alternately determined, i.e., determined in the order of 0.fwdarw.N.fwdarw.1.fwdarw.N-1.fwdarw., . . . .fwdarw.3.fwdarw.N-3. When the density of an original image is high, the number of blackened pixels in the halftone dot cells each with a highlight point at center and the number of blank pixels in the halftone dot cells each with a shadow point at center are equalized to each other, thus preventing moire stripes from being produced which would otherwise be caused by a periodic change in the number of blackened pixels in the halftone dot cells.

Abstract: An halftone dot image output apparatus scans a photosensitive medium with a laser beam which is selectively turned on and off based on an indicated halftone dot area percentage that is inputted, for thereby recording the halftone dot image on the photosensitive medium, and develops the recorded halftone dot image to output a film with the halftone dot image recorded thereon.

Abstract: A sliding unit for a brake comprising a disk and pads made of carbon-fiber reinforced carbon composite materials, characterized in that in evaluation by X-ray diffraction, the sliding surface of the disk to the pads has interplanar spacing of graphite's reflection (002) of disk d002.sub.(disk) of 3.37 .ANG.-3.43 .ANG., and intensity ratio I.sub.(disk) /Ic of 60-90, which is obtained by dividing the integrated intensity of graphite's reflection (002) of disk I.sub.(disk) by the integrated intensity of (113) of .alpha.-Al.sub.2 O.sub.3 as a reference material Ic; the sliding surface of the pads to the disk has interplanar spacing of graphite's reflection (002) of pad d002.sub.(pad) of 3.42 .ANG.-3.44 .ANG., and intensity ratio I.sub.(pad) /Ic of 45-75, which is obtained by dividing the integrated intensity of graphite's reflection (002) of pad I.sub.(pad) by the integrated intensity of (113) of .alpha.-Al.sub.2 O.sub.3 as a reference materials Ic, and d002.sub.(disk) <d002(.sub.(pad).

Abstract: In an improved method and apparatus for processing image signals, an input original image signal that contains a periodic pattern is smoothed to obtain a first unsharpness signal which is then processed for sharpness to obtain an output image signal having its edge enhanced and this output image signal is halftoned to obtain a halftone image signal from which a halftone image is reproduced. The mask size used in the smoothing step is computed in accordance with the pitch of said periodic pattern as optionally combined with the factor of scaling for conversion from an input to an output image. Alternatively, said first unsharpness signal is processed for sharpness only when the difference between said first unsharpness signal and the second unsharpness signal which is obtained by smoothing it is greater than a predetermined threshold value. The apparatus is capable of reproducing a sharp image with minimum moire even if the input original image contains a periodic pattern.