摘要:
The present invention relates to a method for purifying a compound selected from a compound represented by the following general formula [1] or [2], a saturated aliphatic hydrocarbon having no substituent, or kerosene: (R represents a halogen atom or a lower alkyl group having 1 to 3 carbon atoms, and n represents an integer of 1 to 5); (R is the same as above, p and q independently represent an integer of 0 to 4, with the proviso that at least one of p and q is not 0), comprising: removing a impurity contained in said compound by a first step comprising contacting said compound with ozone gas, and then a second step comprising contacting said compound with an adsorbent selected from zeolite or a basic adsorbent.
摘要:
A vane pump includes a housing defining a pump chamber; a rotor rotatably arranged in the pump chamber; and a motor to rotate the rotor. An imaginary plane is defined to bisect the pump chamber in an axis direction. The housing has a first inlet port and a second inlet port located symmetrical with each other with respect to the imaginary plane, and the housing has a first outlet port and a second outlet port located symmetrical with each other with respect to the imaginary plane.
摘要:
A first determiner determines whether a pressure in a fuel tank is within a predetermined range when an ignition switch of an engine is on. A second determiner determines whether a valve allows or prohibits a communication between the fuel tank and a switch valve, when the first determiner determines that the pressure in the fuel tank is within the predetermined range. A control unit controls a pressure controlling portion based on a determination result of the first determiner and a determination result of the second determiner. A leak determiner determines whether the fuel tank has a leak of evaporated fuel based on a signal output from a first detector detecting a pressure in a detection passage and a signal output from a second detector detecting a pressure in the fuel tank.
摘要:
The present invention provides a test apparatus for a 64B/66B encoding process capable of precisely performing a test with a high reproducibility on a certain pattern of a 64B/66B encoder or decoder. A frame generator generates frame data in a layer higher than a physical coding sublayer of Ethernet (registered trademark) and inputs the frame data to a 64B/66B encoder such that the 64B/66B encoder performs a 64B/66B encoding process of the physical coding sublayer with respect to the frame data. A sequence pattern generator generates a certain 66B sequence pattern written in advance, and a controller writes a desired sequence pattern in the sequence pattern generator and, at the same time, controls a data selector to select one of data encoded by the 64B/66B encoder and a sequence pattern output from the sequence pattern generator and to provide the selected one to a test subject.
摘要:
In a magnetic rotation angle sensor for detecting a rotation angle of a detection target, a yoke covers outer circumferences of a magnet and a Hall device. One of the magnet and the magnetic flux density detection device rotates together with the detection target. The Hall IC is radially shifted from a rotation center of the detection target. The magnetic flux density detection device has a detection surface that is in parallel to one of a tangential direction and a normal direction of a turning circle. The magnet is magnetized in the one of the tangential direction and the normal direction of the turning circle.
摘要:
The absorbing rods have a nearly the same shape as the shape of columnar control rods for PWR used in reactivity control of core in a reactor. The absorbing rods can shield neutrons, and are inserted in control rod guide pipes and measuring pipes in fuel assemblies.
摘要:
A photoconductor which has an active layer including channels of ultrafine wire structures each having cross sectional lengths comparable to an electron de Broglie wavelength is provided. The photoconductor has a high gain and a considerably increased response speed. The electric current of the photoconductor may also be increased by introducing a superlattice structure.
摘要:
A first determiner determines whether a pressure in a fuel tank is within a predetermined range when an ignition switch of an engine is on. A second determiner determines whether a valve allows or prohibits a communication between the fuel tank and a switch valve, when the first determiner determines that the pressure in the fuel tank is within the predetermined range. A control unit controls a pressure controlling portion based on a determination result of the first determiner and a determination result of the second determiner. A leak determiner determines whether the fuel tank has a leak of evaporated fuel based on a signal output from a first detector detecting a pressure in a detection passage and a signal output from a second detector detecting a pressure in the fuel tank.
摘要:
An ECU determines whether condensed water is present at a rotor and vanes based on an electric current, which flows in an electric motor that drives the rotor. When the condensed water is determined to be present, the ECU drives the motor for a predetermined time period. When the condensed water is determined to be absent, the ECU stores a pressure, which is sensed through a pressure sensor, as a first pressure. The ECU is adapted to sense an abnormality in a pump characteristic based on a value of the first pressure.
摘要:
For improvement in gate leakage current, there is disclosed a hetero-MIS gate type field effect transistor comprising (a) an indium-phosphide semi-insulating substrate, (b) an indium-phosphide active layer formed on a surface of the semi-insulating substrate, (c) an aluminum-gallium-arsenide layer formed on a surface of the indium-phosphide active layer, (d) a metal gate electrode formed on the aluminum-gallium-arsenide layer, and (e) source and drain electrodes formed on the indium-phosphide active layer and located at the both sides of the metal gate electrode, and the aluminum-gallium-arsenide layer has the highest aluminum atom composition at the upper surface portion contacting the metal gate electrode and the lowest aluminum atom composition at the lower surface portion contacting the indium-phosphide active layer, so that a discontinuity takes place between the indium-phosphide active layer and the aluminum-gallium-arsenide layer and a higher Schottky barrier is provided between the aluminum-gallium-arsenide layer and the gate electrode, thereby preventing the field effect transistor from the large gate leakage current.