摘要:
An object of the invention is to provide a process for industrially producing fluorinated dicyanobenzenes using tetrachlorodicyanobenzene as a raw material. According to the present invention, fluorinated dicyanobenzene can be produced in a high yield by allowing tetrachlorodicyanobenzenes to react with a fluorinating agent in the presence of a non-protonic polar solvent in an amount of 0.1 to 3 times by mass based on the tetrachlorodicyanobenzene. Further, the above production can be conducted more efficiently by reacting while disintegrating or removing bulk solid matters.
摘要:
Provided is a shot peening device with which recovered projection material and foreign bodies can be more precisely separated while inhibiting an increase in the size of the device. The shot peening device is provided with: a projector which projects projection material onto a workpiece (W); recovery mechanisms which recover the projection material projected by the projector; and a wind power sorting mechanism in which recovered projection material is allowed to fall freely while an upward air current is applied to the recovered projection material, and foreign bodies included in the recovered projection material are separated from the recovered projection material.
摘要:
A receiver includes: a first amplifier for amplifying an input signal and outputting an output signal; a clock generator for generating a clock signal corresponding to a period of the output signal; a judger for outputting a first logical value or a second logical value in accordance with a phase lead or phase lag which has been occurred at a crossing point of the positive-phase signal and the negative-phase signal of the output signal upon rising or falling the clock signal; a detector for outputting a difference value between a time for which the judgment signal has the first logical value and a time for which the judgment signal has the second logical value; and an adjustor for adjusting reference voltages of a positive-phase signal and a negative-phase signal of the input signal in accordance with the difference value output from the detector.
摘要:
An amplifier is realized by a distributed-constant-type amplifier including an input-side transmission line and an output-side transmission line, and a plurality of unit circuits coupled between the input-side transmission line and the output-side transmission line, in which each of the plurality of unit circuits is formed by including an amplification circuit having a gain equal to or greater than one.
摘要:
In a method of attaching an electronic component to a printed circuit board by a plurality of screws that are inserted into corresponding through holes cut in the board from a surface of the board and then screwed into corresponding screw holes formed in the component mounted on an opposite surface, the component is screwed onto the board using one of the screws and the component and the screw are soldered onto the board with lead-free solder. After they have been cooled down, the component is screwed onto the board using remaining screws. With this, the strength of the connection between the component and board is improved and also the occurrence of warp of the board and component can be prevented.
摘要:
A recirculation exhaust gas extracted from the exhaust passage of an internal combustion engine and flowing through a recirculation passage. A recirculation control valve (6) controls the flow of the recirculation exhaust gas in the recirculation passage. A recirculation pipe (7) forming the recirculation passage has a hot or contact section (7c, 7e) extending near and along an exhaust manifold (1). The recirculation pipe (7) and the exhaust manifold (1) are covered with a heat-insulation cover (10). The drop of the temperature of the recirculation exhaust gas flowing through the recirculation passage is suppressed and the deposition of deposits including carbon in the recirculation control valve (6) is suppressed.
摘要:
The invention provides a pneumatic tire in which each sidewall covering and protecting the side face of the carcass has a double-layer structure consisting of an inner layer adjacent to the carcass and an outer layer disposed outwardly on the inner layer and which is characterized in that the rubber component of the rubber composition constituting the inner layer consists essentially of 10 to 30% by weight of at least one rubber having a low degree of unsaturation selected from the group consisting of halogenated butyl rubber and ethylene-propylene-diene rubber and 90 to 70% by weight of at least one rubber having a high degree of unsaturation selected from the group consisting of natural rubber, isoprene rubber, butadiene rubber and styrene-butadiene rubber and that the rubber component of the rubber composition constituting the outer layer consists essentially of 30 to 60% by weight of at least one rubber having a low degree of unsaturation selected from the corresponding group defined above and 70 to 40% by weight of at least one rubber having a high degree of unsaturation selected from the corresponding group defined above.
摘要:
Provided is a shot peening device with which recovered projection material and foreign bodies can be more precisely separated while inhibiting an increase in the size of the device. The shot peening device is provided with: a projector which projects projection material onto a workpiece (W); recovery mechanisms which recover the projection material projected by the projector; and a wind power sorting mechanism in which recovered projection material is allowed to fall freely while an upward air current is applied to the recovered projection material, and foreign bodies included in the recovered projection material are separated from the recovered projection material.
摘要:
The present invention provides a method for determining the physiological state of a microbial community, which rapidly and precisely determines the physiological state of a microbial community present in a treatment tank of a wastewater biological treatment facility; and a wastewater treatment method utilizing the same. In the method for determining the physiological state of a microbial community of the present invention, the method includes the steps of staining the microbial community collected from a treatment tank of a wastewater biological treatment facility with a first fluorescent dye which binds to a nucleotide chain of a microbe in the microbial community, and a second fluorescent dye which is degraded by an enzyme in cells of the microbe to emit fluorescent light having a wavelength different from that of the first fluorescent dye; measuring a first fluorescent intensity (F1) derived from the first fluorescent dye and a second fluorescent intensity (F2) derived from the second fluorescent dye, regarding the stained microbial community; and determining the satisfactory degree of the physiological state of the microbial community.