摘要:
The present disclosure is a heat radiator for an aircraft which cools a heat source installed in the aircraft, which includes a heat radiating part in which a contact surface comes into contact with a main flow, the contact surface being formed with a concave portion or a convex portion in which a surface thereof directed upstream in a flow direction of the main flow is curved in a plan view.
摘要:
A method of producing a semiconductor laminate film includes forming a semiconductor layer containing silicon and germanium on a silicon substrate by a sputtering method. In the sputtering method, a film formation temperature of the semiconductor layer is less than 500 °C, and a film formation pressure of the semiconductor layer ranges from 1 mTorr to 11 mTorr, or, a film formation temperature of the semiconductor layer is less than 600 °C, and a film formation pressure of the semiconductor layer is equal to or more than 2 mTorr and less than 5 mTorr. The sputtering method uses a sputtering gas having a volume ratio of a hydrogen gas of less than 0.1%, and the semiconductor layer satisfies a relationship of t≤0.881×x -4.79 , where t represents a thickness (nm) of the semiconductor layer, and x represents a ratio of the number of germanium atoms to a sum of the number of silicon atoms and the number of germanium atoms in the semiconductor layer.
摘要:
There has been a problem that because the size of an adsorption reactor is very big, the conventional adsorption chiller which uses six adsorption reactors becomes very big, and a wide installation space is needed. An adsorption chiller comprising an evaporator which generates cold heat by vaporizing a liquefied refrigerant, a first adsorption reaction section which adsorbs the vaporized refrigerant generated from the evaporator and then vaporizes the refrigerant again, a second adsorption reaction section which adsorbs the vaporized refrigerant generated from the first adsorption reaction section and then vaporizes the refrigerant again, and a condenser which, by cooling and liquefying the vaporized refrigerant generated from the second adsorption reaction section, supplies the refrigerant to the evaporator, wherein at least one of the first adsorption reaction section and the second adsorption reaction section includes at least two adsorption reactors, a first coupling pipe which couples the two adsorption reactors, and a first control valve which controls opening and closing of the first coupling pipe.
摘要:
A liquid jet discharge device includes: a narrow tube having a tube shaped body that is open at both ends, and in which a discharge liquid being disposed therein, the discharge liquid contacting at least at an inner face of the narrow tube at a contact angle of less than 90 degrees; a container in which a transmission medium being disposed at a base side thereof where one end of the narrow tube is disposed, so as to enable pressure to be transmitted to the discharge liquid; an adjustment mechanism that causes a liquid surface of the discharge liquid inside the narrow tube and an interface of the transmission medium outside the narrow tube and inside the container to be staggered in position along an axial direction of the narrow tube; and a generation mechanism that generates a pressure wave in the transmission medium such that a liquid jet is discharged from the discharge liquid inside the narrow tube.
摘要:
There has been a problem that because the size of an adsorption reactor is very big, the conventional adsorption chiller which uses six adsorption reactors becomes very big, and a wide installation space is needed. An adsorption chiller comprising an evaporator which generates cold heat by vaporizing a liquefied refrigerant, a first adsorption reaction section which adsorbs the vaporized refrigerant generated from the evaporator and then vaporizes the refrigerant again, a second adsorption reaction section which adsorbs the vaporized refrigerant generated from the first adsorption reaction section and then vaporizes the refrigerant again, and a condenser which, by cooling and liquefying the vaporized refrigerant generated from the second adsorption reaction section, supplies the refrigerant to the evaporator, wherein at least one of the first adsorption reaction section and the second adsorption reaction section includes at least two adsorption reactors, a first coupling pipe which couples the two adsorption reactors, and a first control valve which controls opening and closing of the first coupling pipe.
摘要:
A phase sensitive detection mechanism that uses electrical processing is realized, and an optical detection device, an optical detection method, and a program that are capable of detecting faint light at high speed and with high sensitivity are provided by a simple configuration. A light source section generates a first pulsed light. A filter section transmits a second pulsed light formed from a portion of a frequency spectrum exhibited by the first pulsed light, and reflects a third pulsed light formed from another portion of the frequency spectrum exhibited by the first pulsed light. A phase modulation section phase modulates the second pulsed light at plural phases. A multiplexing section produces a fourth pulsed light by multiplexing the third pulsed light with the second pulsed light phase modulated by the phase modulation section. A detector spectrally disperses and detects scattered light generated by radiating the fourth pulsed light onto a target object. An extraction section uses specific calculation processing to synchronize with the phase modulation in the phase modulation section, so as to extract a frequency spectrum of scattered light scattered based on the second pulsed light phase modulated by the phase modulation section from the frequency spectrum of the scattered light detected by the detector.
摘要:
A nitride semiconductor crystal has a diameter of four inches or more and is warped to have a curvature radius of 100 m or more, and has an impurity concentration of 1 × 10 17 /cm 3 or lower. A manufacturing method for a nitride semiconductor crystal includes providing a substrate, feeding a gallium trihalide gas having a partial pressure of 9.0 × 10 -3 atm or higher onto the substrate, and growing a GaN crystal in the -C-axis direction on the substrate, where a growth temperature for the GaN crystal is 1200°C or higher, or a manufacturing method for a nitride semiconductor crystal includes providing a substrate, feeding an aluminum trihalide gas having a partial pressure of 9.0 × 10 -3 atm or higher onto the substrate, and growing an AlN crystal in the -C-axis direction on the substrate, where a growth temperature for the AlN crystal is 1400°C or higher.
摘要:
Provided are: a method for efficiently growing a high-quality, large diameter β-Ga 2 O 3 -based single crystal film; and a crystalline layered structure having a β-Ga 2 O 3 -based single crystal film grown using this growing method. As one embodiment, the present invention provides a method for growing a β-Ga 2 O 3 -based single crystal film by using the HVPE method, and including a step for exposing a Ga 2 O 3 -based substrate (10) to a gallium chloride gas and an oxygen-containing gas, and growing a β-Ga 2 O 3 -based single crystal film (12) on the principal surface (11) of the Ga 2 O 3 -based substrate (10) at a growing temperature of 900° C or higher.
摘要翻译:本发明提供:用于有效地生长高质量的方法,大直径²-的Ga 2 O 3系单晶膜; 和具有使用该生长方法生长的²-的Ga 2 O 3系单晶膜的结晶层状结构。 作为一个实施例,本发明提供了一种方法,用于通过利用HVPE法生长²-的Ga 2 O 3系单晶的电影,并且包括用于曝光的Ga 2 O 3系基材(10),以镓的工序 氯化物气体和基底物在生长温度气体,和Ga的2 O 3(10)的主表面(11)上生长²-的Ga 2 O 3系单晶膜(12)的含氧 900℃或更高。
摘要:
Light emitted from a low-coherence light source (10) is split into two beams by an optical coupler (20). One of the two beams split by the optical coupler (20) is applied to a sample medium (40). The other of the two beams split by the optical coupler (20) is subjected to phase modulation by a reference mirror (50) and a vibration element (52). The beam (reference beam) subjected to phase modulation and a scattered beam from the sample medium (40) are wavelength-resolved by a diffraction grating (62), and the spectrum of interference light of the reference beam and the scattered beam is detected by a photodetector (70). A calculation section (80) calculates an intensity signal corresponding to the position of each scattering point in the sample medium (40) on the basis of the detected spectrum, calculates a power spectrum corresponding to the position of each scattering point on the basis of a temporal change in the intensity signal corresponding to the position of each scattering point, and calculates a diffusion coefficient of the particles corresponding to the position of each scattering point on the basis of the calculated power spectrum.