Abstract: A first fuel flow rate command value indicating a command value of a fuel input amount is calculated so that an output of a gas turbine matches a target output. An upper limit value of the first fuel flow rate command value is calculated based on a deviation obtained by subtracting, from an estimated value of a turbine inlet temperature of the gas turbine, a second limit value relating to the estimated value set such that the estimated value does not exceed a first limit value of the turbine inlet temperature.

Abstract: A system display control unit causes a display unit to display a simulated system screen. A symbol selection unit receives a selection of a symbol from a user. A model display control unit causes the display unit to display a plant model in which a component model corresponding to the component represented by the selected symbol is emphasized. A model selection unit receives a selection of a component model from the user. A component information display control unit causes the display unit to display information about the component represented by the selected model.

Abstract: A system display control unit causes a display unit to display a simulated system screen. A symbol selection unit receives a selection of a symbol from a user. A model display control unit causes the display unit to display a plant model in which a component model corresponding to the component represented by the selected symbol is emphasized. A model selection unit receives a selection of a component model from the user. A component information display control unit causes the display unit to display information about the component represented by the selected model.

Abstract: A first fuel flow rate command value indicating a command value CSO of a fuel input amount is calculated so that the output of a gas turbine matches a target output. An upper limit value of the first fuel flow rate command value is calculated. The upper limit value of the first fuel flow rate command value is calculated on the basis of a deviation obtained by subtracting from an estimated value of the turbine inlet temperature of the gas turbine a second limit value relating to the estimated value set such that the estimated value does not exceed the first limit value of the turbine inlet temperature.

Abstract: In a surface treating method of the present invention, a fluid suction passage 26 communicating with a fluid supply passage 25 via only a narrowed portion 27 is provided, so as to approximately concentrically surround the periphery of the fluid supply passage 25 having the narrowed portion 27 at one end thereof, and the sucking cavitation flow 5 is generated at the direct downstream of the narrowed portion 27, by sucking the processing fluid 8 into the fluid suction passage 26 using a suction pump 17, as well as a surface treating is performed on the treated surface 6a, by crushing the sucking cavitation flow 5 approximately perpendicular to the treated surface 6a.

Abstract: In a surface treating method of the present invention, a fluid suction passage 26 communicating with a fluid supply passage 25 via only a narrowed portion 27 is provided, so as to approximately concentrically surround the periphery of the fluid supply passage 25 having the narrowed portion 27 at one end thereof, and the sucking cavitation flow 5 is generated at the direct downstream of the narrowed portion 27, by sucking the processing fluid 8 into the fluid suction passage 26 using a suction pump 17, as well as a surface treating is performed on the treated surface 6a, by crushing the sucking cavitation flow 5 approximately perpendicular to the treated surface 6a.

Abstract: An image input apparatus has an image sensor for photoelectrically converting image information of an object into an electric signal and outputting the signal, and a correction circuit for adjusting a fluctuation of offset components generated during photoelectric conversion contained in the signal output from the image sensor to correct the offset components. Images of good quality can be obtained by correcting the offset components contained in the signal output from the image sensor.

Abstract: A work piece 1 mounted on a movable table 22 is rotated while adjusting cutting depths of a grinding wheel 23 by means of feed motor so as to perform cylindrical grinding. During the cylindrical grinding, a thermocouple 42 is pushed to and caused to contact the rotating cylindrical grinding surface 1a of the work piece 1 at a constant pressure and thermoelectromotive force generated by the thermocouple 42 is measured. Surface roughness data corresponding to the measured thermoelectromotive force are obtained on the basis of the thermoelectromotive data obtained by the measurement and correlation between thermoelectromotive force and surface roughness concerning a known standard surface previously obtained and memorized. The surface roughness data are output and displayed on a display section. Therefore, an in-process measurement of surface state of the work piece 1 can be performed, while the machining such as cylindrical grinding is being carried out.

Abstract: Image signals output from a linear image sensor which outputs charges accumulated in pixels in the right-side area and charges accumulated in pixels in the left-side area via different channels are subjected to discrepancy correction. First, a gray reference board is scanned by the linear image sensor while changing charging periods, and look up tables for converting signal levels of the respective channels are generated on the basis of signal levels obtained by scanning the gray reference board. A discrepancy correction is realized by converting levels of image signals output from the two terminals using the look up tables.

Abstract: A work piece 1 mounted on a movable table 22 is rotated while adjusting cutting depths of a grinding wheel 23 by means of feed motor so as to perform cylindrical grinding. During the cylindrical grinding, a thermocouple 42 is pushed to and caused to contact the rotating cylindrical grinding surface 1a of the work piece 1 at a constant pressure and thermoelectromotive force generated by the thermocouple 42 is measured. Surface roughness data corresponding to the measured thermoelectromotive force are obtained on the basis of the thermoelectromotive data obtained by the measurement and correlation between thermoelectromotive force and surface roughness concerning a known standard surface previously obtained and memorized. The surface roughness data are output and displayed on a display section. Therefore, an in-process measurement of surface state of the work piece 1 can be performed, while the machining such as cylindrical grinding is being carried out.

Abstract: The object of this invention is to provide an image reading apparatus capable of greatly reducing generation of a black streak image caused by dust, dirt, or the like at a flow scanning position on a document glass table in flow scanning of reading a document image while moving the document sheet at a predetermined speed. To achieve this object, the CPU of the image reading apparatus performs dust detection processing of detecting dust on the document glass table by a dust detection circuit during a document nonreading period. The CPU executes dust correction processing based on the dust detection result during continuous document reading. During an interval between the end of a series of image reading JOBs and the next image reading JOB, the CPU performs dust avoidance processing of changing the flow scanning position to a position free from any dust on the document glass table.

Abstract: An image input apparatus has an image sensor for photoelectrically converting image information of an object into an electric signal and outputting the signal, and a correction circuit for adjusting a fluctuation of offset components generated during photoelectric conversion contained in the signal output from the image sensor to correct the offset components. Images of good quality can be obtained by correcting the offset components contained in the signal output from the image sensor.

Abstract: An image input apparatus has an image sensor for photoelectrically converting image information of an object into an electric signal and outputting the signal, and a correction circuit for adjusting a fluctuation of offset components generated during photoelectric conversion contained in the signal output from the image sensor to correct the offset components. Images of good quality can be obtained by correcting the offset components contained in the signal output from the image sensor.

Abstract: Since an apparatus has a linear image sensor for scanning an image at the stop position of a mirror table from a document that moves at a constant speed, a black stripe image detection circuit for detecting the presence/absence of generation of a black stripe image on the basis of an image signal, and a CPU for determining that dust or soil is attached to the surface of the platen glass upon detection of generation of the black stripe image, and making control for changing the stop position of the mirror table and control for displaying a warning message, any black stripe generated due to dust or soil on the platen glass surface is detected in the sheetfed scanning mode, and the control for changing the sheetfed scan position or the control for displaying a warning message indicating that dust or soil is attached to the platen glass surface is done in accordance with the detection result, thus reducing the frequency of occurrence of generation of a black stripe compared to a conventional apparatus.

Abstract: The object of this invention is to provide an image reading apparatus capable of greatly reducing generation of a black streak image caused by dust, dirt, or the like at a flow scanning position on a document glass table in flow scanning of reading a document image while moving the document sheet at a predetermined speed. To achieve this object, the CPU of the image reading apparatus performs dust detection processing of detecting dust on the document glass table by a dust detection circuit during a document nonreading period. The CPU executes dust correction processing based on the dust detection result during continuous document reading. During an interval between the end of a series of image reading JOBs and the next image reading JOB, the CPU performs dust avoidance processing of changing the flow scanning position to a position free from any dust on the document glass table.

Abstract: Image signals output from a linear image sensor which outputs charges accumulated in pixels in the right-side area and charges accumulated in pixels in the left-side area via different channels are subjected to discrepancy correction. First, a gray reference board is scanned by the linear image sensor while changing charging periods, and look up tables for converting signal levels of the respective channels are generated on the basis of signal levels obtained by scanning the gray reference board. A discrepancy correction is realized by converting levels of image signals output from the two terminals using the look up tables.

Abstract: Interpolation apparatus for offset sampling of signals comprises a plurality of interpolation circuits whose interpolation methods are different from each other and a selection circuit which selects one of outputs of the interpolation circuits according to the degree of correlation between a group of pixels located in the surrounding area of an interpolation pixel and another group of pixels located in the surrounding area of the group of pixels.

Abstract: This invention provides an image reading method and apparatus which can prevent a large difference from being produced between the color tones of the read image and the original image. A plurality of signals output from an image sensor (101) are A/D-converted into a plurality of digital signals by A/D conversion circuits (105), a predetermined one of the A/D-converted digital signals is compared with a predetermined reference level by a comparator (108), a low-pass filter (109) removes any high-frequency component from the comparison result, and the output from the low-pass filter (109) is controlled to be input to the A/D conversion circuits (105) as a reference voltage for determining the input range of each A/D conversion circuit (105).

Abstract: An image signal recording apparatus for recording, on a recording medium, image signals corresponding to an image in which one picture is composed of a plurality of horizontal scanning lines is arranged to store the image signals for one picture, to simultaneously output N kinds (N: an integer at least 2) of image signals corresponding to N number of horizontal scanning lines adjacently located on the picture, and to simultaneously record, in different areas on the recording medium, the N kinds of image signals. This arrangement enables the apparatus to record an image signal of a high picture quality on the recording medium with a high degree of density.

Abstract: When an image from a scanner or an external apparatus is to be printed out, in order to achieve both high color reproducibility and high gray reproducibility, a black signal is extracted from an input color image signal, the ratio of the extracted black signal to the color image signal is changed in accordance with an input instruction, and an output operation is performed in accordance with the extracted black signal and the color image signal. When a color image signal is formed by scanning an image, a black signal is extracted from the color image signal, a high-frequency component of the extracted black signal is removed, and an output operation is performed in accordance with the black signal, from which the high-frequency component is removed, and with the color image signal.