Abstract: A cylinder for a combustor includes a cylindrical member, a first cooling passage defined in the cylindrical member and a second cooling passage defined in the cylindrical member, and a supply port extender. The first cooling passage includes a supply port that opens to an outer peripheral surface of the cylindrical member. The second cooling passage includes a discharge port that opens to the outer peripheral surface of the cylindrical member downstream of the supply port. The supply port extender includes a first wall that is disposed between the supply port and the discharge port and extends away from the outer peripheral surface of the cylindrical member and a second wall that is disposed upstream of the supply port and extends away from the outer peripheral surface of the cylindrical member.

Abstract: A combustor including: a transition piece having a cylindrical shape and including an inlet of combustion gas at one end and an outlet of the combustion gas at the other end and configured to allow the combustion gas flowing from the inlet to flow out from the outlet so as to introduce the combustion gas into a turbine; a cooling medium introduction unit introduced with the cooling medium and provided on an outer periphery portion in an outlet side of the transition piece; a cooling medium inlet configured to introduce the cooling medium into the cooling medium introduction unit; and a cooling portion, connected to the cooling medium introduction unit, provided on a portion from the outlet of the transition piece toward the inlet and configured to allow the cooling medium from the cooling medium introduction unit to pass through the outlet toward the inlet.

Abstract: An actuator includes a diaphragm, a lower electrode on the diaphragm, an electromechanical transducer film on the lower electrode, and an upper electrode on the electromechanical transducer film. The diaphragm includes a first silicon oxide film having a thickness of 0.5 ?m or more, a silicon layer on the first silicon oxide film, a thickness of which is 3 ?m or more, and a second silicon oxide film on the silicon layer, a thickness of which is 0.5 ?m or more. A volume resistivity of the silicon layer is 103 ?·cm or more and 106 ?·cm or less.

Abstract: An electromechanical transducer element including a lower electrode, an electromechanical transducer film and an upper electrode formed on the electromechanical transducer film.

Abstract: A liquid discharge head includes a channel forming member made of silicon, the channel forming member including a plurality of liquid channels, a natural oxide film having a film thickness of 2 nm or more on an outermost surface of the plurality of liquid channels of the channel forming member, and a surface treatment film on the natural oxide film to contact the natural oxide film. Each of a carbon content and a fluorine content in an interface between the natural oxide film and the surface treatment film is 5 atomic % or less.

Abstract: A resonant sound absorbing device of a gas turbine combustor includes a plurality of resonance chambers independently disposed side by side in an axial direction of the gas turbine combustor so as to communicate with a gas passage of the gas turbine combustor via acoustic holes. The plurality of resonance chambers include n related resonance chambers each satisfying: 0.9 × ? i = 1 n ? F i n ? F i ? 1.1 × ? i = 1 n ? F i n ( A ) where n is an integer of 2 or more, and Fi is a peak frequency corresponding to a maximum sound absorbing ratio of the ith related resonance chamber of the n related resonance chambers.

Abstract: An actuator includes a diaphragm, a lower electrode on the diaphragm, an electromechanical transducer film on the lower electrode, and an upper electrode on the electromechanical transducer film. The diaphragm includes a first silicon oxide film having a thickness of 0.5 ?m or more, a silicon layer on the first silicon oxide film, a thickness of which is 3 ?m or more, and a second silicon oxide film on the silicon layer, a thickness of which is 0.5 ?m or more. A volume resistivity of the silicon layer is 103 ?·cm or more and 106 ?·cm or less.

Abstract: A gas turbine combustor comprising a plurality of cooling air passages (27A) through which bled pressurized air flows from downstream of a combustion gas flow toward upstream, the plurality of cooling air passages (27A) being disposed in a wall portion (26) side by side and aligned in a flow direction of a combustion gas; wherein the plurality of cooling air passages (27A) are divided via a passage transition groove portion (33) into upstream cooling air passages (27A1) disposed closer to bled pressurized air inlet holes (30a) and downstream cooling air passages (27A2) disposed closer to bled pressurized air outlet holes (30b), and center lines (C1) of the upstream cooling air passages are non-collinear with center lines (C2) of the downstream cooling air passages.

Abstract: A gas turbine equipped with a compressor, a combustion chamber and a turbine is further equipped with: a pressurizing device for taking a portion of the compressed air compressed by the compressor, and pressurizing the compressed air; a combustion chamber cooling line for cooling the combustion chamber using the pressurized compressed air; a temperature regulating line for regulating the temperature of a stationary member of a blade ring or the like of a turbine by using the pressurized compressed air; a combustion chamber supply line through which the compressed air flows from the pressurizing device to the combustion chamber cooling line; a turbine supply line through which the compressed air flows from the pressurizing device to the temperature regulating line; a heater for heating the compressed air, provided in the turbine supply line; and a control device capable of controlling the heater.

Abstract: A liquid discharge head includes a head substrate and a surface treatment film on a surface of the head substrate. The surface treatment film is an oxide film containing Si. The oxide film contains a transition metal to form a passive film. A content of Si in a vicinity of an interface of the surface treatment film with the head substrate is higher than a content of Si in an inside of the surface treatment film and is 20 at % or more.

Abstract: Provided is a gas turbine capable of achieving high-speed startup of the gas turbine through quick operation control of an ACC system during startup of the gas turbine, improving the cooling efficiency of turbine stationary components, and quickly carrying out an operation required for cat back prevention during shutdown of the gas turbine.

Abstract: Provided is a gas turbine capable of achieving high-speed startup of the gas turbine through quick operation control of an ACC system during startup of the gas turbine, improving the cooling efficiency of turbine stationary components, and quickly carrying out an operation required for cat back prevention during shutdown of the gas turbine.

Abstract: A liquid discharge head includes a plurality of nozzles from which a liquid is discharged, a plurality of pressure chambers communicating with the plurality of nozzles, respectively, a substrate in which the plurality of pressure chamber is arranged in a predetermined direction, a diaphragm provided on a first side of the substrate opposite a second side of the substrate facing the plurality of nozzles, the diaphragm forming walls of the plurality of pressure chambers, and a plurality of electromechanical transducer elements provided on the diaphragm corresponding to the plurality of pressure chambers, respectively. A groove is formed in the substrate on an end side of the plurality of pressure chambers in the predetermined direction, and the groove includes an opening that opens toward a direction opposite to the diaphragm.

Abstract: An electromechanical transducer includes an electromechanical transducer film of laminated layers including a perovskite-type complex oxide represented by a general formula of ABO3; and a pair of electrodes opposed to each other with the electromechanical transducer film interposed between the pair of electrodes. In the general formula of ABO3, A includes Pb and B includes Zr and Ti.

Abstract: An electromechanical transducer element including a lower electrode, an electromechanical transducer film and an upper electrode formed on the electromechanical transducer film.

Abstract: An electromechanical-transducing electronic component includes at least one element array of electromechanical transducer elements. A piezoelectric material of each transducer element is made of a composite oxide having a perovskite structure preferentially oriented to at least one of (100) and (001) planes and has a drop of diffraction intensity in a rocking curve corresponding to at least one of (200) and (002) planes measured at a position (2?=?max) of a diffraction peak intensity P where the diffraction intensity is largest in a diffraction intensity peak corresponding to the at least one of the (200) and (002) planes out of diffraction intensity peaks measured by an X-ray diffraction ?-2? method. ?P/PAVE is 20% or less where PAVE represents an average of the intensity P in the element array in the piezoelectric material of each transducer element and ?P represents a maximum difference of the intensity P in the array.

Abstract: An electromechanical transducer element includes a lower electrode, an electromechanical transducer film of a piezoelectric material, and an upper electrode which are laminated. A diffraction intensity peak profile of the film obtained by measurement in which a tilt angle is changed in a position where diffraction intensity of a peak profile corresponding to a {200} plane among peak profiles of the film obtained by measurement according to an X-ray diffraction ?-2? method is the maximum can be separated into three peak profiles. When peak intensities of the peak profiles are set to peak1, peak2, and peak3 and half-value widths of the peak profiles are set to ?1, ?2, and ?3, a weighted average FWHMstd(?) of the peak intensities using the half-value widths as weights (=(?1×peak1+?2×peak2+?3×peak3)/(peak1+peak2+peak3)) is equal to or less than 12°.

Abstract: An electro-mechanical transduction element includes a lower electrode formed above a substrate; an electro-mechanical transduction film which is formed on the lower electrode and includes a perovskite-type crystal containing lead zirconate titanate (PZT); and an upper electrode formed on the electro-mechanical transduction film, wherein, in a state where the electro-mechanical transduction film is not bound by the substrate, a peak position of X-ray diffraction caused by a plane (200) of the electro-mechanical transduction film is 2?=44.45° or greater and 44.75° or smaller, and a peak of diffraction caused by the plane (200) or a plane (400) of the electro-mechanical transduction film has an asymmetry property.

Abstract: A liquid discharge head includes a plurality of nozzles from which a liquid is discharged, a plurality of pressure chambers communicating with the plurality of nozzles, respectively, a substrate in which the plurality of pressure chamber is arranged in a predetermined direction, a diaphragm provided on a first side of the substrate opposite a second side of the substrate facing the plurality of nozzles, the diaphragm forming walls of the plurality of pressure chambers, and a plurality of electromechanical transducer elements provided on the diaphragm corresponding to the plurality of pressure chambers, respectively. A groove is formed in the substrate on an end side of the plurality of pressure chambers in the predetermined direction, and the groove includes an opening that opens toward a direction opposite to the diaphragm.

Abstract: A gas turbine combustor and a gas turbine; wherein inclined surfaces are provided on inner surfaces of side walls neighboring in a circumferential direction at downstream end portions of transition pieces of combustors, the inclined surfaces being configured to increase a passage area of the transition pieces, a ratio (S/P) is from 0 to 0.2, where (P) is a pitch dimension of first stage vanes, and (S) is a circumferential dimension from an intermediate point between neighboring transition pieces to an upstream end of a first stage vane closest in the circumferential direction; and a ratio (L/P) is from 0.3 to 0.55, where (P) is the pitch dimension, and (L) is an axial dimension from a downstream end of the transition piece to the upstream end of the first stage vane.