Abstract: A small size gear pump having a disc-shaped case, inside which a flat cylindrical motor rotor chamber, a bearing chamber and a flat cylindrical gear chamber are arranged eccentrically from the bearing chamber and the rotor chamber, which are piled sequentially along an axial direction and are communicating to each other.

Abstract: It is an object of the present invention to solve the problem of a drop in precision in conventional systems using a square pyramid type five-hole probe due to the drop in atmospheric pressure in high altitude ranges, and to provide a wide velocity range flight velocity vector measurement system that can prevent a drop in measurement precision. Furthermore, it is also an object of the present invention to provide a method for eliminating the effects of detection fluctuations caused by adhering water droplets, ice particles or dust in a wide velocity range flight velocity vector measurement system.

Abstract: A thruster is provided that makes it possible to reduce and eventually eliminate the toxicity of storable liquid propellant and improve the low-temperature environment adaptability of propulsion system using the storable liquid propellant. The thruster produces thrust by using catalytic decomposition gas obtained by catalytically decomposing nitrous oxide with a nitrous oxide decomposition catalyst.

Abstract: Disclosed is a thermal control apparatus which comprises a base plate associated with a target object in a heat-exchangeable manner therebetween, at least one heat-exchange paddle attached to the base plate in such a manner as to be selectively deployed and retracted, paddle drive means provided at an end of the base plate and adapted to drive a deployment movement and a retraction movement of the heat-exchange paddle so as to change an angle of the heat-exchange paddle, and a heat transport element provided to connect the base plate and the heat-exchange paddle.

Abstract: A fuel/air premixer for use in a gas turbine improves the atomization performance and mixing performance of the fuel by guiding an air so as to flow in an outward radial direction. A flow-deflecting tubular body having an annular cross section is disposed on the inside of and coaxially with a liquid film-forming body of an airbiast atomizer nozzle disposed at the inlet portion of a premixing tube. The outer peripheral surface of the flow-deflecting tubular body has a wall surface which increases in outer diameter toward the tip end of a first annular passage. The inner peripheral surface of the flow-deflecting tubular body has a form in which the inner diameter has a minimum to form a contracted portion, and then increases dramatically toward the tip end.

Abstract: The present invention provides a hall-type electric propulsion that exhibits both overheating protection and operational stability, thereby simultaneously solving the problem of waste heat, which worsens with micronization, and the problem of discharge current oscillation. First, the magnetic flux distribution in ionization/acceleration channel is formed to optimize ion velocity vector, whereupon a propellant flow passage (propellant conduit) is disposed in a magnetic pole of the propulsion, or more specifically in the vicinity of the acceleration channel, and then propellant is passed through the flow passage. Thus, the magnetic pole, which is overheated by the generated plasma, can be cooled, and at the same time the propellant can be heated.

Abstract: In order to obtain an electromagnetic rotating machine of lightweight and high energy efficiency, which produces big torque for rotating a large-diameter fan, a coil A and coil B as excitation coils are disposed on an inner peripheral surface of a fan casing so as to face an outer circumference of the fan, and a coil M as an armature coil crosses at a central portion and is disposed on the outer circumference of the fan. The relationships |Iai|=|Iai+1| and Iai=?Iai+1, or |Ibi|=|Ibi+1| and Ibi=?Ibi+1 are obtained respectively for the coil A or coil B by a current control device (not shown). Moreover, the coil A and coil B are subjected to excitation control such that the direction of effective electromagnetic force, which is generated by an interaction between an effective magnetic field formed by the coil A and effective induced current applied to the coil M by the coil B, corresponds to the direction of rotation of the fan.

Abstract: A method for evaluating a semiconductor substrate is provided that can evaluate even a thin semiconductor substrate or a substrate with untreated surfaces, can evaluate a large quantity of semiconductor substrates for solar cells in a short time and can be used as in-line inspection in a production process of solar cells or the like. The method for evaluating a semiconductor substrate comprises a step of immersing a semiconductor substrate in an etching solution filled in a container, a step of irradiating the substrate being immersed in the etching solution with light via the etching solution to cause the substrate to emit photoluminescence, and a step of observing the emitted photoluminescence.

Abstract: The present invention provides a liquid gas generating composition comprising the following (a) to (c) components, wherein the content ratio of (b) component is 0.5 mass % or more and less than 5.0 mass %: (a) hydroxyammonium nitrate; (b) a thickening stabilizer; and (c) water.

Abstract: An ultrasonic test method for detecting a defective portion more precisely in a noncontact reflection way, and ultrasonic test instrument used for the method. An ultrasonic wave is transmitted from a transmitter (20 (21)) provided on one side of an object under test, and the reflected wave is received by a receiver (30 (31)) provided on the same side. The ultrasonic wave is transmitted/received through an air layer between the transmitter and the object (100) under test and between the receiver and the object (100). The relative positions of the transmitter (20), the receiver (30), and the object (100) are so determined that the air propagation time ta of the air path (RA) between the transmitter and the receiver is longer than the propagation time tb of the reflected wave in the reflection path (RB). The propagation of the ultrasonic wave through the solid body between the transmitter and the receiver is blocked.

Abstract: It is an object of the present invention to provide a system that is used to provide support so that a pilot can perform flight operations that reduce noise pollution, by devising this system so that noise conditions on the ground are calculated and displayed on the basis of map information for the flight area in which facilities and the like are described, environmental conditions in the flight area such as the wind direction and wind velocity, or the temperature and density of the atmosphere, and noise generation data for the aircraft itself.

Abstract: To provide a turbofan jet engine for a supersonic aircraft, which enables a supersonic cruise with small additional drag due to engine installation while minimizing the jet noise at takeoff. In the turbofan jet engine, two fans, i.e., a front fan and an aft fan, are disposed, and an air inlet and an air outlet are provided on each of the front and aft fans, whereby at takeoff, air is introduced to each of the air inlets of the front and aft fans to drive the front and aft fans in parallel, and the air is then ejected from each of the outlets. On the other hand, during a supersonic cruise, an inlet of an aft fan duct is coupled to an outlet of a front fan duct, where external air is introduced only to an air inlet of the front fan duct and the air compressed through the front fan is fed to the aft fan duct and further compressed through the aft fan, and ejected from a nozzle, so that the front and aft fans are driven in series.

Abstract: Disclosed are a non-flammable nonaqueous electrolyte solution and a lithium ion cell using the electrolyte solution. The non-flammable nonaqueous electrolyte solution comprises a ternary or higher-order compound additive, a high concentration of lithium salt and a phosphoric ester serving as a primary solvent. The lithium ion cell comprises a positive electrode containing a lithium transition metal oxide capable of absorbing and releasing lithium, a negative electrode containing a carbon-based material capable of absorbing and releasing lithium, and the above non-flammable nonaqueous electrolyte solution.

Abstract: A dual structure is introduced to the transistor in a flip-flop or a data input step controlled by a clock of a semiconductor logic circuit. The dual structure is formed by connecting a transistor with a MOS transistor having a channel of the same conductivity type in series with respect to the line of a source or drain and connecting their gates to each other, or by connecting an inverter with p-MOS transistors, one for VDD side and one for VSS side of the output step. The dual structure prevents single event phenomenon in a semiconductor logic circuit, such as inverter, SRAM and data latch circuit.

Abstract: There is provided a fuel cell system having a moisture mixture separating mechanism capable of separating produced water in high purity. While a sheet member closes an outlet port of a drain port and an inlet port of a drain passage by closely adhering to an outlet-side opening end of the drain port and an inlet-side opening end of the drain passage in a state when hydraulic pressure within a Pitot tube is low, it elastically deforms and separates from the opening ends of the drain port and drain passage when the hydraulic pressure within the Pitot tube increases, thus communicating the outlet-side opening end of the drain port with the inlet-side opening end of the drain passage and discharging water in the drain port to the drain passage.

Abstract: A method of precisely measuring temperature of an object without having to setting the emissivity of the object over a wide temperature range from low to high temperature with a single radiation thermometer. The temperature-measuring device of the present invention includes a reference object having an emissivity of substantially 1 in a prescribed wavelength range; a bandpass filter transmitting radiant energy in the prescribed wavelength range; and a radiation thermometer for observing temperature by taking in the radiant energy transmitted through the bandpass filter.

Abstract: A system which comprises a sun-synchronous orbit satellite (3) revolving around the sun (5) and apparently revolving around the earth at a period of approximately one year while keeping the direction and the geometry to the sun and the earth (4) constant at an ultrahigh altitude of several millions km keeping clear of the influence zone of the earth, and which provides any of astronomical or global observation service and communication service. An observation satellite, which meets such conditions that a vector normal to a virtual orbital plane centering around the earth is substantially fixed regardless of revolution, can sweep the substantially entire celestial sphere during a single revolution while avoiding the effect of light and heat from the earth, and can keep a local solar time at a sub-satellite point on the surface of the earth constant, can be attained.

Abstract: In adjustment of the control parameters of a magnetic suspension system, an object of the present invention is to provide a technique for adjusting the control parameters to optimum values automatically by employing the iterative feedback tuning method, without increasing the complexity of the program, the amount of calculation and the overall size of the system, and still reducing the amount of calculation required for calculation of the safety margin (gain margin and phase margin). In a method of automatic adjustment of control parameters according to the invention, when applying the iterative feedback tuning method to a feedback control system for a magnetic suspension system, only those control parameters that have a significant effect on the control performance of the system are selectively adopted/discarded from among control parameters so that the control parameters are guided to optimum values to obtain a response waveform desired by a designer directly from input/output data of a control subject.

Abstract: An air intake includes a spike and a cylindrical cowl. The spike is composed of a plurality of plates which are arranged axial symmetrically around a central axis thereof, and the cowl includes an inner wall parallel to the central axis and is formed so as to enclose a rear portion of the spike via a given space. The adjacent ones of the plates form respective aerodynamic compressive surfaces in spaces formed by the adjacent ones. The distances between the adjacent ones of the plates are variable, and the distance between the forefront of the spike along the central axis and the cowl is variable.

Abstract: A crystallization device is for protein crystallization with a small amount of a sample in the liquid to liquid diffusion method. It is easy to fill the device with protein solution and precipitant solution and easy to pick up grown crystals from the device. The device comprises a channel plate made of polydimethylsiloxane (PDMS) and the first and second cover sheets made of polyethylene terephthalate. The channel plate includes at least one elongated channel having one side which extends in the longitudinal direction of the channel, the one side being exposed at the bottom surface of the channel plate. The channel has both ends which communicate with a protein solution inlet and a precipitant solution inlet respectively. The channel also communicates midway with a gel inlet and a vent hole. When picking up grown crystals from the device, the second cover sheet is cut off with a cutter knife so that the channel is exposed.