Abstract: A piping device for use in a cutting oil coater includes an oil supply path, a narrower path connected with the oil supply path and having an inside diameter smaller than that of the oil supply path, an oil tube, for feeding liquid oil to the oil supply path, a gas tube for feeding a gas to the oil supply path, where it mixes with the oil and changes it into a droplet state, an air space into which the oil is discharged from the narrower path, and is changed into a spray, a wall defining the air space having a recess, and a plurality of branch paths into which the oil impinges on the recess flows, with a substantially even flow distribution in each branch path, wherein a vertex of the recess and an end of the narrower path face each other. The apparatus suppresses an uneven distribution of flow rate of oil discharged into the air space.

Abstract: A novel 1,2,4-triazole compound which is useful as a therapeutic agent for hyperuricemia and gout due to hyperuricemia is provided. A compound is represented by the following general formula (1): wherein R2 represents an unsubstituted or substituted pyridyl group, R1 represents a similar pyridyl group, a pyridine-N-oxide group corresponding to these pyridyl groups, or a phenyl group, and R3 represents hydrogen or a lower alkyl group substituted with pivaloyloxy group and R3 bonds to a nitrogen atom in the ring. A process for production of a compound by reacting a nitrile and a hydrazide, and a therapeutic agent, particularly a xanthine oxidase inhibitor are also provided.

Abstract: A system for controlling a gas-turbine engine having a combustor which generates a combustion such that resulting combustion gas rotates a turbine that is connected to the compressor and a load such as a generator to drive the compressor and the generator. In the system, the oxygen concentration of the resulting combustion gas is detected and the adiabatic flame temperature is calculated based on at least the detected oxygen concentration such that the combustion mode is switched between the premix combustion and the diffusive combustion by calculated temperature. With this, the system, when operated using a gas fuel whose composition is not constant can control the fuel supply through a multiple venturi mixer, while avoiding flame-out and operate stably in response to load demand and achieving excellent emission performance.

Abstract: It is an object of the present invention to provide a probe that may correspond to various styles of measurement when used in microscopes and that is also applicable to recording devices and an optical head using the same, as well as to provide a method for manufacturing such a probe in a simple and costless manner; for achieving such objects, the method for manufacturing a multiple optical path array type probe according to the present invention is arranged in that in a light guiding material including a substrate that functions as a clad and a light guiding path formed of a component that functions as a core for guiding light or as a waveguide, the light guiding material includes a plurality of light guiding paths aligned to be parallel to each other within the substrate that functions as a clad, and tip end portions of the light guiding paths are sharpened through chemical etching of an end surface that is orthogonal to the plurality of light guiding paths.

Abstract: An opening fabricating apparatus for creating an opening with desired dimensions at a mask tip of a near-field optical microscope, and a near-field optical microscope using the same are provided. The apparatus comprising: a light source 116; reflection means 140, light detection means 124; press means 128, 130 pressing a probe tip against said reflection means; storage means 142; calculation means 144 figuring out the quantity of light of the reflected light for the acquisition of said opening with desired dimensions from the calibration information stored in said storage means; and press control means 126 controlling pressing of said probe tip against said reflection means so as to allow the quantity of light of said reflected light to become equal to the quantity figured out by said calculation means. The probe opening fabricating apparatus is capable of readily fabricating an opening of desired dimensions with a high reproducibility.

Abstract: An opening fabricating apparatus for creating an opening with desired dimensions at a mask tip of a near-field optical microscope, and a near-field optical microscope using the same are provided. The apparatus comprising: a light source 116; reflection means 140; light detection means 124; press means 128, 130 pressing a probe tip against said reflection means; storage means 142; calculation means 144 figuring out the quantity of light of the reflected light for the acquisition of said opening with desired dimensions from the calibration information stored in said storage means; and press control means 126 controlling pressing of said probe tip against said reflection means so as to allow the quantity of light of said reflected light to become equal to the quantity figured out by said calculation means. The probe opening fabricating apparatus is capable of readily fabricating an opening of desired dimensions with a high reproducibility.

Abstract: An opening fabricating apparatus for creating an opening with desired dimensions at a mask tip of a near-field optical microscope, and a near-field optical microscope using the same are provided. The apparatus comprising: a light source 116; reflection means 140; light detection means 124; press means 128, 130 pressing a probe tip against said reflection means; storage means 142; calculation means 144 figuring out the quantity of light of the reflected light for the acquisition of said opening with desired dimensions from the calibration information stored in said storage means; and press control means 126 controlling pressing of said probe tip against said reflection means so as to allow the quantity of light of said reflected light to become equal to the quantity figured out by said calculation means. The probe opening fabricating apparatus is capable of readily fabricating an opening of desired dimensions with a high reproducibility.

Abstract: An opening fabricating apparatus for creating an opening with desired dimensions at a mask tip of a near-field optical microscope, and a near-field optical microscope using the same are provided. The apparatus comprising: a light source 116; reflection means 140; light detection means 124; press means 128, 130 pressing a probe tip against said reflection means; storage means 142; calculation means 144 figuring out the quantity of light of the reflected light for the acquisition of said opening with desired dimensions from the calibration information stored in said storage means; and press control means 126 controlling pressing of said probe tip against said reflection means so as to allow the quantity of light of said reflected light to become equal to the quantity figured out by said calculation means. The probe opening fabricating apparatus is capable of readily fabricating an opening of desired dimensions with a high reproducibility.

Abstract: An opening fabricating apparatus for creating an opening with desired dimensions at a mask tip of a near-field optical microscope, and a near-field optical microscope using the same are provided. The apparatus comprising: a light source 116; reflection means 140; light detection means 124; press means 128, 130 pressing a probe tip against said reflection means; storage means 142; calculation means 144 figuring out the quantity of light of the reflected light for the acquisition of said opening with desired dimensions from the calibration information stored in said storage means; and press control means 126 controlling pressing of said probe tip against said reflection means so as to allow the quantity of light of said reflected light to become equal to the quantity figured out by said calculation means. The probe opening fabricating apparatus is capable of readily fabricating an opening of desired dimensions with a high reproducibility.

Abstract: The near-field spectrometer 10 comprises a Z-axis scanner 18, 20 for bringing a sample 24 and the tip of a probe 12 close to each other at a predetermined distance within a near-field 26 region when obtaining near-field spectral information and separating them from each other at a predetermined distance outside a near-field 26 region when obtaining back ground spectral information, and a data processor 22 for obtaining the true near-field spectral information free from the background by subtracting the background spectral information from the near-field spectral information, characterized in that a background information collector, during the separation of the sample 24 and the tip of the probe 12 at a predetermined distance outside the near-field 26 region, obtains the background spectral information for the corresponding portion to be measured.

Abstract: A cutting-oil coater that prevents oil spray from liquefying during conveying and improves the efficiency of work such as oil-refilling by forming a spray feed portion and an oil storage portion separately from each other and making it possible to adjust the arrangement position. A cutting-oil coater includes a spray feed portion, an oil storage portion, an oil feed means for feeding oil to the oil spray feed portion, and a spray conveying passage for conveying the oil spray inside the spray feed portion to the outside of the spray feed portion, wherein the spray feed portion and the oil storage portion are formed separately from each other and can be arranged in different positions respectively, and the arrangement can be adjusted. Thus, the spray feed portion is arranged in the vicinity of the cutting position of a machining tool and the fluid feed unit 11 is arranged at a place where a worker can carry out a work such as oil-refilling.

Abstract: In a gas-turbine engine control system, a temperature of the air supplied to mixers and a pressure of the fuel supplied to the mixers are detected and based on the detected fuel pressure, a flow rate of the fuel supplied to the mixers is determined based on at least the detected pressure of the fuel. Then, an adiabatic flame temperature in a combustion chamber is determined based on at least the determined flow rate of the fuel and it is determined whether a selected one of combustion modes including premixed combustion and diffusive combustion is to be switched to other based on the determined adiabatic flame temperature and the detected air temperature and the selected combustion mode is controlled to switch to the other in response to a result of determination. With this, it becomes possible to achieve switchover to the stabler combustion mode and realize better low emission performance by utilizing the premixed combustion range.

Abstract: This invention relates in general to a fluid device and to a method of changing the aperture size of an orifice aperture. The invention relates in particular to a technique capable of easily forming an orifice aperture having an exact aperture size and easily making a change in the orifice aperture size. While being brought into communication with a connecting pipe 83 through an intersecting inner aperture 633 drilled in a lower plate 63 of a device main body 6, two inner apertures 632, 632 with their one ends opening to a recessed portion 631 are each provided with a female thread 634. An orifice member 4 provide with a through-hole 412 having a corresponding inside diameter to an orifice aperture and communicating with a hexagon socket into which a hexagon bar spanner wrench 16 is internally fit, is threaded into each female thread 634, whereby the orifice member 4 is mounted. Finally, a covering member 15 is sealingly threaded into an opening of the other end of each inner aperture.

Abstract: A gas-turbine engine combustor having a plurality of venturi mixers, each includes an air inlet connecting to an air supply path, a fuel inlet connecting to a supply source of gaseous fuel, and an air-fuel mixture generating passage connecting to the air inlet and the fuel inlet and merges with an air-fuel mixture generating section to produce the air-fuel mixture and a nozzle opened into the combustion chamber at an end of the air-fuel mixture generating passage.

Abstract: A gas-turbine engine combustor having a plurality of venturi mixers, each includes an air inlet connecting to an air supply path, a fuel inlet connecting to a supply source of gaseous fuel, and an air-fuel mixture generating passage connecting to the air inlet and the fuel inlet and merges with an air-fuel mixture generating section to produce the air-fuel mixture and a first nozzle opened into the combustion chamber at an end of the air-fuel mixture generating passage.

Abstract: A gas-turbine engine combustor having a plurality of venturi mixers, each includes an air inlet connecting to an air supply path, a fuel inlet connecting to a supply source of gaseous fuel, and an air-fuel mixture generating passage connecting to the air inlet and the fuel inlet and merges with an air-fuel mixture generating section to produce the air-fuel mixture and a first nozzle opened into the combustion chamber at an end of the air-fuel mixture generating passage.

Abstract: A gas-turbine engine combustor having a plurality of venturi mixers, each includes an air inlet connecting to an air supply path, a fuel inlet connecting to a supply source of gaseous fuel, and an air-fuel mixture generating passage connecting to the air inlet and the fuel inlet and merges with an air-fuel mixture generating section to produce the air-fuel mixture and a nozzle opened into the combustion chamber at an end of the air-fuel mixture generating passage.

Abstract: A system for controlling a gas-turbine engine having a combustor which generates a combustion such that resulting combustion gas rotates a turbine that is connected to the compressor and a load such as a generator to drive the compressor and the generator. In the system, the oxygen concentration of the resulting combustion gas is detected and the adiabatic flame temperature is calculated based on at least the detected oxygen concentration such that the combustion mode is switched between the premix combustion and the diffusive combustion by calculated temperature. With this, the system, when operated using a gas fuel whose composition is not constant can control the fuel supply through a multiple venturi mixer, while avoiding flame-out and operate stably in response to load demand and achieving excellent emission performance.

Abstract: A gas-turbine engine combustor having a plurality of venturi mixers, each connected to an air supply path that passes air compressed by a compressor and to a supply source of gaseous fuel, which mix the air and the gaseous fuel to produce an air-fuel mixture and supply the air-fuel mixture to a combustion chamber for generating premixed combustion or diffusive combustion such that produced combustion gas is supplied to a turbine through a turbine nozzle to rotates the turbine that outputs its rotation through an output shaft, while driving the compressor by the rotation.

Abstract: In a gas-turbine engine control system, a temperature of the air supplied to mixers and a pressure of the fuel supplied to the mixers are detected and based on the detected fuel pressure, a flow rate of the fuel supplied to the mixers is determined based on at least the detected pressure of the fuel. Then, an adiabatic flame temperature in a combustion chamber is determined based on at least the determined flow rate of the fuel and it is determined whether a selected one of combustion modes including premixed combustion and diffusive combustion is to be switched to other based on the determined adiabatic flame temperature and the detected air temperature and the selected combustion mode is controlled to switch to the other in response to a result of determination. With this, it becomes possible to achieve switchover to the stabler combustion mode and realize better low emission performance by utilizing the premixed combustion range.