摘要:
A method of producing a titanium oxide, including the steps of: ion-exchanging a sodium titanium oxide Na2Ti6O13, to synthesize Li2Ti6O13; subjecting Li2Ti6O13 to proton exchange, to give H2Ti6O13; and subjecting H2Ti6O13, as a starting material, to a heat treatment.
摘要翻译:一种氧化钛的制造方法,其特征在于,包括以下工序:离子交换钠二氧化钛Na 2 Ti 6 O 13,合成Li 2 Ti 6 O 13; 使Li2Ti6O13进行质子交换,得到H 2 Ti 6 O 13; 并将作为原料的H 2 Ti 6 O 13进行热处理。
摘要:
A modular barcode scanner for identifying various types of barcodes or the like is provided. The scanner has a housing that has a light source mounted therein and a plurality of walls with one wall at least partially disposed to allow a light path originating from the light source to pass out of the housing to reach the bar codes. The scanner further has a top module mounted on the top of the housing comprising a flat member having light receiving and processing optics as well as subsequent electronic processing devices mounted thereon; and a bottom module mounted on the bottom of the housing having an inner surface with a rotating mirror mounted thereon for directing the light path.
摘要:
A gas generator is provided in which the filter life is prolonged and the pressure regulating valve is thereby protected for a prolonged periods. The gas generator is intended for electrolyzing an electrolyte in an electrolytic cell to generate a gas or gases and comprises at least one absorber for absorbing an unnecessary by-products generated from the gas generator, a filter for removing the mist generated from the absorber, and at least one pressure regulating valve for adjusting the pressure in the electrolytic cell, wherein the filter is inserted downstream from the absorber and, further, the pressure regulating valve is disposed downstream from the filter.
摘要:
A magnetic attraction preventive system includes an approach detection unit which generates an approach detection magnetic field and detects the approach of a magnetic material to a magnetic resonance imaging apparatus on the basis of a variation in the strength of the approach detection magnetic field, and a preventive unit which prevents magnetic attraction of the magnetic material to the magnetic resonance imaging apparatus when the approach detection unit detects the approach of the magnetic material to the magnetic resonance imaging apparatus.
摘要:
A module for an optical information reader, wherein a light emitting unit (22), a collimator lens (23), a vibration mirror (31) for scanning, a condensing mirror (40), and a light receiving unit (50) are installed in a module casing (10) for modularization, and a lens-barrel hole (13b) opening at one end thereof and having an aperture (13a) formed at the tip face thereof is provided in the module casing (10), the collimator lens (23) is installed in the lens-barrel hole (13b) so as to come into contact with the tip bottom part thereof, and the light emitting unit (22) is press-fitted into the press-fit part (13c) of the lens-barrel hole in front of the collimator lens to form a laser beam generating part (20).
摘要:
A method and system used in the barcode sensing process are disclosed, in which at least two instances of an optical signal are obtained from the same barcode in different time periods, and digitized by a first digitizer with a first threshold. The digitized results from the at least two instances are then applied with an AND algorithm to eliminate the noise, whereby create a correct digitized output. Preferably, the instances of the signal are also digitized by a second digitizer with a second threshold, which are used to synchronize the timing of the digitized results created by the first digitizer. The second threshold is preferably larger than the first threshold.
摘要:
A method of producing high-quality and large-diameter single crystals by the Czochralski method is disclosed which can provide wafers with a minimized number of such grown-in defects as dislocation clusters and laser scattering tomography defects. Specifically, it is a method of producing silicon single crystals which comprises carrying out the crystal pulling while maintaining the solid-melt interface during pulling in the shape of an upward convex with the central portion of the interface being higher by at least 5 mm than the peripheral region thereof and while applying a magnetic field, and optionally in addition to the above, while maintaining the temperature gradient in the direction of axis of pulling in the peripheral region at a level lower than that in the central portion in the range of from the melting point to 1,200° C. In this case, it is desirable that the portion of the single crystal surface lying at least 50 mm above the melt surface be shielded from direct radiant heat from the heater and/or crucible wall, that a horizontal magnetic field of 0.08 to 0.3 T be applied in parallel with the melt surface or a cusped magnetic field showing an intensity of 0.02 to 0.07 T at a crucible wall site on the melt surface be applied and that the crucible be rotated at a speed of not more than 5 min−1 and the single crystal at a speed of not less than 13 min−1.
摘要:
An information processing apparatus and method, such that when an interruption occurs in a microprocessor, an exception processing sequence control is started, a program condition of an interrupted program and an address of the interrupted program are saved in a RAM, a program address of a jump instruction is read out from an exception processing generating source and is set in a program counter, and the exception processing sequence control is stopped. Thereafter, a normal processing sequence control is started, the jump instruction is read out from a ROM, an address of an exception processing vector is calculated according to the jump instruction, the exception processing vector is read out from the ROM, a branch address of an exception processing routine indicated by the exception processing vector is set in the program counter, and an operation state of the microprocessor is branched to the exception processing routine. Thereafter, the normal processing sequence control is stopped, and the exception processing routine is performed in the exception processing sequence control.
摘要:
A pipeline arithmetic and logic system capable of adjusting operational timings among stages without using an NOP instruction, providing a size reduction of its control section. The system has a decoder set including decoder groups divided into a decoder group for controlling an arithmetic section unit, a register file unit and a program counter unit, and a decoder for control of an address unit, and further including a clock control unit controlled by the address unit control decoder. A clock signal from an external source is directly fed to the address unit while being fed through the clock control unit to the other units. When fetching a data transfer instruction and repeatedly executing an MA stage twice, the system stops the clock control unit at the execution of the first MA stage to inhibit the operations of the units other than the address unit.
摘要:
A process for the isolation of carbon nanotubes from a mixture containing carbon nanotubes and graphite is disclosed, which includes the steps of: (a) reacting the mixture with a metal compound to intercalate the metal compound into the graphite; (b) reducing the reaction mixture obtained in step (a) to convert the intercalated metal compound to elemental metal; (c) heating the reduction mixture obtained in step (b) at a temperature of 450-600.degree. C. in an oxygen-containing atmosphere to selectively oxidize the graphite and the elemental metal; and (d) contacting the heated mixture obtained in step (c) with a liquid to dissolve the oxidized metal in the liquid and to separate the carbon nanotubes as a solid phase from the oxidized metal.