Abstract: A fuel control method for a gas turbine with a combustor being formed of at least two groups of a pluralities of main nozzles for supplying fuel, and that supplies fuel from the main nozzles of all groups upon ignition of the combustor (S1), and supplies fuel from three main nozzles of a group A during subsequent acceleration of the gas turbine (S3). Because fuel is injected from a small number of the main nozzles during acceleration, the fuel flow rate per one main nozzle is increased, thereby increasing the fuel-air ratio (fuel flow rate/air flow rate) in a combustion region and improving the combustion characteristics. Accordingly, the generation of carbon monoxide and unburned hydrocarbon is reduced, whereby no bypass valve is required and manufacturing costs are reduced.

Abstract: An object is to reduce a fluctuation in the gas-turbine output in a nozzle switching period. In the nozzle switching period during which a first nozzle group that has been used is switched to a second nozzle group that is going to be used, the amounts of fuel supplied through the first nozzle group and the second nozzle group are adjusted by using at least one adjustment parameter registered in advance, the adjustment parameter registered in advance is updated according to the operating condition of the gas turbine, and the updated adjustment parameter is registered as an adjustment parameter to be used next.

Abstract: A control apparatus of an extracted air booster system of an integrated gasification combined cycle power plant can additionally serve a sufficient pressure control function and a sufficient antisurge control function. For example, when an inlet guide vane is fully closed or has a small opening degree equal to or smaller than a predetermined opening degree, a second control section of the control apparatus performs pressure control based on a pressure deviation, instead of or as well as antisurge control. In the pressure control, the degree of opening of an antisurge valve is controlled so that a booster outlet pressure detection value can become equal to a set pressure value. In a case where a pressure ratio is larger than a set pressure ratio value, it is also effective that the second control section performs the antisurge control even when the inlet guide vane is fully closed.

Abstract: In a statistical variable display apparatus, first lengths along a first axis and second lengths along a second axis are determined. The first lengths are respectively allotted to first-type subgroups, and the second lengths are respectively allotted to the second-type subgroups. The apparatus displays the first-type subgroups arranged along the first axis to have the respective first lengths, the second-type subgroups arranged along the second axis to have the respective second lengths, and representations of acquired statistical variables correspondingly to a respective one of the first-type subgroups arranged along the first axis and a respective one of the second-type subgroups arranged along the second axis.

Abstract: Provided is a gas turbine operation control device and operation control method that are capable of suppressing turbine inlet temperature and of satisfying the demand response for shaft output. An IGV emergency fully-open flag is activated when the output of a generator is in a high load band at or above a predetermined value, and the like. When the IGV emergency fully-open flag is activated, the degree of opening of an inlet guide vane is set to a predetermined degree of opening, a temperature adjustment setting is set by switching in accordance with the degree of opening of the inlet guide vane, and an exhaust gas temperature setting value or a blade path temperature setting value of a turbine, for controlling the fuel supply amount for a combustor, is generated based on the temperature adjustment setting.

Abstract: The objects are to provide easy maintenance/inspection and to rapidly achieve stable start-up of a plant. Provided is a closed-cycle plant including a high-temperature gas-cooled reactor having a nuclear reactor; a gas turbine that is driven by working fluid heated in the high-temperature gas-cooled reactor; a low-pressure compressor and high-pressure compressor that are linked coaxially with the gas turbine; a power generator connected to the gas turbine through an output shaft; and a power supply unit that is connected to the power generator in a disconnectable manner and supplies electric power, wherein, at startup, the power supply unit is connected to the power generator and electric power is supplied so as to make the speed-up ratio of the power generator constant.

Abstract: A fuel-flow-rate control device, a power generation system, and a fuel-flow-rate control method which can prevent overshooting of a gas turbine output (gas turbine inlet temperature) and which can improve power generation efficiency are provided. The fuel-flow-rate control device includes a computing portion for obtaining a state quantity relating to operating conditions and temperature conditions of a gas turbine as an input signal and computing a fuel-flow-rate command for controlling a fuel flow rate supplied to a combustor based on the above input signal, and a second selection circuit for setting the above fuel-flow-rate command to be not more than a fuel-flow-rate upper limit. The fuel-flow-rate upper limit is a fuel flow rate at which the gas turbine inlet temperature is set to be not more than a predetermined upper temperature limit.

Abstract: A printed material having a location identification function includes multiple encode units provided on an area to be encoded. Each of the multiple encode units records first code information of coordinate values identifying a location on the printed material and second code information of an identification number identifying the printed material, and the first code information and the second code information are invisibly recorded on the printed material.

Abstract: A variation in calorific value is detected using existing measurement values, without using a measurement device such as a calorimeter. An allowable variation range of a gas turbine power generation output with respect to a charged fuel amount or an allowable variation range of a charged fuel amount with respect to a gas turbine power generation output is set from a relation between the fuel amount charged to the combustor of the gas turbine and the gas turbine power generation output when the fuel gas calorific value is constant, and a calorific abnormality is detected when an actually charged fuel amount or an actual gas turbine power generation output falls outside the allowable variation range.

Abstract: A printed material includes a first coded pattern of image identification information repeatedly formed on a recording material, and a second coded pattern of a coordinate value on the recording material recorded as a background image. The first coded pattern and the second coded pattern are provided to identify an image formed on the recording material, and the first coded pattern represents a second pattern value, on the basis of a value obtained by adding a third pattern value to a first pattern value, the third pattern value being obtained by encoding the coordinate value, the first pattern value being obtained by encoding the image identification information.

Abstract: There is provided a code pattern readable by a reader having a given number of dots that are selectively arranged in a block that is an information unit.

Abstract: An information processing system has a link information input unit, a link information totaling unit and a network similarity calculating unit. The link information input unit inputs link information indicating links among nodes in networks. The link information totaling unit totals the link information in the respective networks to be compared and determines presence/absence of the links among the nodes or link quantities. The network similarity calculating unit calculates the similarity among the networks based on the sum of the comparison results of the links among all nodes.

Abstract: An integrated gasification combined cycle that can adjust the balance of pressure/temperature in an overall plant and can stabilize the output of a gas turbine at an early stage during load variation, and an operation control method of the integrated gasification combined cycle are provided. When a calorific abnormality of fuel gas is detected during load variation of a gas turbine (5b), a load change command value of the gas turbine (5b) is set to zero or is decreased, and based on this load change command value, a power generation output command of the gas turbine (5b) is generated.

Abstract: A meniscus of applying fluid is controlled by applying a voltage to a discharge-nozzle side electrode and a counter electrode placed downstream of the discharge nozzle and by increasing or decreasing fluid pressure inside a pump chamber with use of a mechanism for rotational motion or rectilinear motion.

Abstract: A handwritten information management system, which includes a paper sheet document generation section that generates a paper sheet document in which plurality pieces of coded information including coordinate information indicating a position on a paper sheet and document identification information of the paper sheet document formed on the paper sheet are recorded; a paper sheet document registration section that registers the generated paper sheet document and an electronic document corresponding to the paper sheet document correlated with the document identification information; a handwritten information detection section that detects handwritten information handwriting on the generated paper sheet document; a handwritten information registration section that registers handwritten information identification information to identify the handwritten information correlated with the detected handwritten information; and an identification information management section that manages the document identification info

Abstract: A gasifying agent supply path A from an axial flow compressor 21 which boosts pressure of a gasifying agent to a gasifying furnace 2 is branched, and a gasifying agent bypass path D having an escaping pressure adjusting valve 23 is provided. The flow quantity or pressure of the gasifying agent supplied to the gasifying furnace 2 from the gasifying agent supply path A can be adjusted according to the degree of opening of the adjusting valve 23 disposed in the gasifying agent bypass path D, whereby providing a control valve in the gasifying agent supply path A is no longer necessary. Thus, pressure loss at the gasifying agent supply path A can be suppressed, and the discharge pressure of the axial flow compressor 21 can be greatly reduced.

Abstract: An image generation apparatus includes an additional image information generation section and a superposition information generation section. The additional image information generation section generates additional image information in which control information, which controls operation of a machine for reading information recorded on a recording medium, is placed as second image information in partitions formed by two-dimensionally placing position information, which are unique to positions on the recording medium or unique to recording positions of a document image recorded on the recording medium as first image information. The superposition information generation section converts acquired document information into third image information and superposes the third image information and the additional image information generated by the additional image information generation section to generate superposition information.

Abstract: An image generation apparatus includes an acquisition unit and a generation unit. The acquisition unit acquires information to be embedded in each of a plurality of partitions on a recording medium. The generation unit generates an image in which first pattern images representing the information and a second pattern image controlling acquisition of the information from the first pattern images are placed in each of the plurality of partitions. The first and second pattern images are ones of mCn pattern images which are obtained by placing a unit image in n points selected from among m points where m and n are natural numbers, m?4, and 2?n<m.

Abstract: An image generation apparatus includes an information acquisition section and an image generation section. The information acquisition section acquires record information to be recorded on a recording medium. The image generation section generates an image including code pattern images and a latent image for checking paper being copied. The code pattern image represents the record information acquired by the information acquisition section. The latent image for checking paper being copied includes second pattern images each having a smaller size than each code pattern image and third pattern images each having a larger size than each code pattern image.

Abstract: An image processing apparatus includes an image acquisition section, a combination detection section and an angle detection section. The image acquisition section acquires a code pattern image from a surface of a recording medium on which the code pattern is formed. In the code pattern, N unit images are selectively placed in M reference positions that are arranged at predetermined intervals in two directions orthogonal to each other where M?4 and 2?N<M. The combination detection section detects pairs of the unit images based on the predetermined intervals and respective positions of the unit images contained in the code pattern image acquired. The angle detection section detects a rotation angle of the code pattern image with respect to a predetermined reference axis based on an inclination of a line, with respect to the predetermined reference axis, connecting the unit images of each pair detected.