摘要:
A combined cycle power plant is disclosed, which has a backup function operating during the normal operation as well as when the plant is activated, so as to reliably maintain the steam cooling operation when an abnormal phenomenon occurs. In this power plant, the cool steam of the steam cooling system for cooling a high-temperature portion of the gas turbine is the high-pressure exhaust gas of the high-pressure turbine. When the exhaust gas is unexpectedly insufficient, high or medium-pressure steam output from the exhaust heat recovery boiler is introduced as cool steam into the steam cooling system, thereby reliably continuing the steam cooling operation.
摘要:
A polarization detection device includes a photocoupler; an optical waveguide layer for propagating light from the photocoupler therethrough; a polarization splitter for splitting the propagation light into two components having different refractive angles; and a photodetector formed of a semiconductor material for performing photoelectric conversion on the propagation light split into the two components. The photocoupler, the optical waveguide layer, the polarization splitter, and the photodetector are provided on a single semiconductor substrate. The photocoupler is one of a prism and a beam splitter formed of a dielectric material and supported by the optical waveguide layer only by an adhesive layer, the adhesive layer having a straight edge in the vicinity of the photocoupler. The adhesive layer has a thickness d fulfilling expression (1) where a longer diameter of a beam spot of the light incident on the photocoupler on an interface between the adhesive layer and the optical waveguide layer is L, and the angle of incidence of the light with respect to the optical waveguide layer is .theta.:d.gtoreq.L/tan .theta. (1).
摘要翻译:偏振检测装置包括光电耦合器; 用于传播来自光电耦合器的光的光波导层; 偏振分离器,用于将传播光分成具有不同折射角的两个分量; 以及由半导体材料形成的光电检测器,用于对分成两个部件的传播光执行光电转换。 光电耦合器,光波导层,偏振分离器和光电检测器设置在单个半导体衬底上。 光电耦合器是由介电材料形成的棱镜和分束器之一,并且仅由粘合剂层由光波导层支撑,粘合剂层在光电耦合器附近具有直边。 粘合剂层的厚度d满足表达式(1),其中入射到光电耦合器上的粘合剂层和光波导层之间的界面上的光束的长度的直径较大,并且光的入射角 相对于光波导层为θ= d / L /tanθ(1)。
摘要:
The present invention provides a combined cycle electric power generating plant that effectively reduces the noise produced by the exhaust of steam in the warm-up process or the like. This plant has a duct which drives the steam used for warming a steam cooling system which cools the high temperature parts which are cooled of the gas turbine at the start of the operation to an exhaust duct of the gas turbine. The steam used for warming a steam cooling system is directed to the exhaust duct of the gas turbine, and the noise which is produced by the exhaust of the steam for warming is silenced by the exhaust duct of the gas turbine.
摘要:
A strong metal plate having flexibility includes a flat portion, a plurality of first protuberances projecting from the flat portion in one direction of the thickness direction of the flat portion and a plurality of second protuberances projecting from the flat portion in the other direction of the thickness.
摘要:
Real-time image processing apparatus and method for displaying two different visual resolutions includes structure and steps for detecting a position on a display screen at which an operator is looking. A center area of a predetermined size is determined and includes the detected position at which the operator is looking and another area different from the center area. Structure and steps are provided for determining a first image generation algorithm for a first image to be displayed on the center area and a second image generation algorithm for a second image to be displayed on another area. The first and second image generation algorithms are different from each other. Structure and steps are provided for generating the first and second images using the first and second image generation algorithms, respectively. Structure and steps are provided for causing a display of the first and second images together and having different visual resolutions.
摘要:
An image processing method and the apparatus thereof for approximating an object shape and reconstructing the corresponding image by subjecting a radial range image to approximating with polygons and reconstructing an image from these polygons execute the following processes. At block B210, reading a radial range image data is executed. At block B220, a plural of different resolution radial range images are generated based upon the read radial range image. At block B230, normal vectors, according to each resolution of a radial range image, are calculated. At block B240, an edge-map having a plural of edges is generated in such a manner that a plural of edges are generated depending upon the resulting normal vectors and the radial range images of different resolutions. At block B250, the edge-maps of all kinds of resolutions are ORed to form a synthesized map. The synthesized map is subjected to correcting crossing and isolated edges. At block B260, each polygon is divided into a plural of triangles. At block B270, assigning 3 dimensional coordinate values and the normal vector generated at block B230 to each apex and the corresponding triangle plane respectively, is executed. At block B280, eliminating unnecessary triangle gaps around a T-shaped point is executed.
摘要:
A method for producing a tapered waveguide layer is disclosed. The method includes the steps of: forming a resist pattern on a substrate; setting the substrate in an apparatus for forming a film such that particles constituting the film reach the substrate from a direction which is oblique relative to the substrate; forming the film on a region of a surface of the substrate which is not covered by the resist pattern, the film having a thickness distribution corresponding to a shadow which the resist pattern creates on the substrate in accordance with an angle between the substrate and the direction; and removing the resist pattern, thereby forming the tapered waveguide layer consisting of the film on the substrate.
摘要:
An image memory apparatus for storing image data which includes: plural memory cells, arranged in a one-chip memory, for inputting image data and for outputting the image data therefrom; a writing line, connected with all of the plural memory cells, for inputting the image data into the plural memory cells; a readout line, provided independent from the writing line and connected to all of the plural memory cells, for outputting the image data from the plural memory cells; a first address designating line, connected with the plural memory cells, for identifying one of the plural memory cells which is subjected to an input of the image data through the writing line; a second address designating line, provided independent from the first address designating line and connected with the plural memory cells, for identifying one of the plural memory cells which is subjected to an output of the image data through the readout line.
摘要:
A correction device for correcting the deviation of light beams of a primary scanning direction used for an image forming apparatus in which a plurality of light beams are simultaneously scanned on a recording medium in the primary scanning direction so that a plurality of lines are simultaneously recorded. A plurality of beam detectors, the number of which corresponds to the number of beams of light, are disposed in a scanning region in parallel with the primary scanning direction. Only one light beam is incident upon each beam detector, and a difference of detection time between the plurality of beam detectors is detected by a same beam detection interval detector. A different beam detection interval detector detects a time difference between detection of different light beams are detected. Based on the time differences detected by the same beam detection interval detector and by the different beam detection interval detector, a deviation time calculator calculates the deviation of a plurality of light beams of the primary scanning direction. Based on the calculation result of the deviation time calculator, a deviation corrector controls the phase of a printing clock for the image formation conducted by the plurality of light beams and also controls a timed relation of the start of image formation.
摘要:
An optical integrated circuit is disclosed. The optical integrated circuit includes: a dielectric waveguide having at least a waveguide layer for transmitting light in a first direction; a first reflector for reflecting the light in a substantially opposite direction to the first direction, the first reflector being formed on an end face of the waveguide layer; a grating coupler having a grating for diffracting at least a part of the light in a second direction which is different from the first direction, the grating coupler being formed at a surface of the waveguide layer; and a light detector for detecting the diffracted light, the light detector being optically connected with the dielectric waveguide.