摘要:
In an air-fuel ratio control system for an internal combustion engine, the basic fuel injection amount computed from engine parameters such as engine speed and intake air flow is corrected by using map having air-fuel ratio compensation data stored battery back-up in accordance with the engine parameters. The compensation data is read out of the map in accordance with the parameters at the time of detection of the stable combustion state of the engine. When an output of an oxygen sensor is on lean side, a predetermined amount is added to the data thus read, while when the output of the oxygen sensor is on rich side, a predetermined amount is subtracted from the data thus read, thereby renewing the stored value.
摘要:
A closed loop mixture control system for internal combustion engines is responsive to a signal derived from an exhaust gas sensor. The sensor signal is time-integrated in a direction depending on the level of the gas sensor output to derive a first mixture corrective setting of the control system. Second corrective settings or learning data are established for the control system in correspondence with the amount of air supplied to the engine. Each of the latter settings is varied as a function of time in a direction depending on the value of the time-varying first corrective setting relative to a reference so that the second settings are automatically updated to meet varying engine performance such as aging. One of the second corrective settings is selected in response to the detected quantity of the supplied air and multiplied by the first corrective setting to correct the basic mixture control setting of the system toward an optimum value. All of the second corrective settings are reset to appropriate values, for example, "1" at the instant the engine is started if an average value of the second settings is greater than a predetermined value to compensate for different fuel vaporizations.
摘要:
A graft copolymer is obtained by graft-polmerizing a vinyl or vinylidene monomer onto a rubber trunk polymer which comprises a polyalkylene oxide monomer comprising 4 to 500 alkylene oxide groups together with an ethylenic unsaturation, and a conjugated diene and/or an alkyl acrylate.This graft copolymer alone or in a mixture thereof with another thermoplastic resin, because of the presence of the polyalkylene oxide monomer unit incorporated in the rubber trunk polymer, provides a resin composition possessing excellent antistatic property, which, practically, is not lowered by washing.
摘要:
An antistatic resin composition comprises 100 parts of a nitrile copolymer comprising 7 to 100% of a nitrile graft copolymer with a graft ratio of 4 to 50% obtained by graft-polymerizing a monomer mixture of a specific composition onto a rubber trunk polymer predominantly comprising a conjugated diolefin and/or an acrylate, and 0 to 93% of a nitrile random copolymer of a specific composition; and 0.05 to 10 parts of a surfactant added thereto. This antistatic resin composition, wherein the rubber trunk polymer forms a bridge structure, not only has, per se, an excellent antistatic property but also an antistatic property which undergoes substantially no change upon washing, for example, with water.
摘要:
A transparent resin composition comprising (1) 6 to 100% by weight of a nitrile graft copolymer comprising a rubber trunk polymer and a branch polymer grafted thereon, which has been obtained by graft-polymerizing onto the rubber trunk polymer a monomer mixture containing an unsaturated nitrile and a monomer copolymerizable therewith, and (2) 0 to 94% by weight of a random copolymer of an unsaturated nitrile and a monomer copolymerizable therewith, the resin components of the resin composition other than the rubber trunk polymer constituting a matrix resin, wherein(a) said rubber trunk polymer has a glass transition temperature of not higher than 0.degree. C. and constitutes 4 to 25% by weight of the resin composition,(b) the unsaturated nitrile constitutes 25 to 90% by weight of the matrix resin in the resin composition,(c) the difference in the refractive indexes between the rubber trunk polymer and the matrix resin is not more than 0.008, and(d) the resin composition, when molded into a 3 mm-thick plate, has a transmittance in diethyl phthalate of not lower than 95% with respect to the laser rays used.The above described resin composition has excellent transparency and molding fidelity and can be used for molding information signal recording discs, information pits being engraved on one side of each disc, and a metal coating being deposited thereon, the information signals recorded on the information pits being reproducible by irradiation with laser rays from the other side of said disc.
摘要:
An AC/DC power supply device for operating a refrigerator compressor by switching over the AC operation mode in which the compressor is operated from AC power source and the DC operation mode in which the compressor is operated from DC power source through an inverter circuit, wherein a thermostat is constructed so as to be connected to a circuit for supplying DC voltage to the inverter circuit in the DC operation mode, and a switching section is constructed so that high potential points including the potential of the AC power source and low potential points including the potential of the DC power source do not face each other in close vicinity to prevent the AC power voltage from being unwantedly applied to the low voltage side.
摘要:
A process for producing a graft polymer possessing a low gas-permeability and an excellent impact resistance and thermal stability which comprises the steps of:First graft-polymerizing in emulsion 5 to 40 parts by weight of (A) a monomeric mixture comprising 30 to 70% by weight of acrylonitrile and 30 to 70% by weight of at least one acrylic ester having the following formula:CH.sub.2 .dbd.CHCOOR.sub.1 wherein R.sub.1 represents an alkyl group having from 1 to 4 carbon atoms, in the presence of 2 to 30 parts by weight of (B) a trunk copolymer prepared by copolymerizing 50 to 90% by weight of 1,3-butadiene, 10 to 50% by weight of at least one acrylic or methacrylic ester having the following formula:CH.sub.2 .dbd.CR.sub.3 COOR.sub.2 wherein R.sub.2 represents an alkyl group having from 1 to 8 carbon atoms and R.sub.3 represents a hydrogen atom or a methyl group, and 0 to 15% by weight of styrene to form a first branch polymer; and thenGraft-polymerizing in emulsion 40 to 90 parts by weight of (C) a monomeric mixture comprising 50 to 85% by weight of acrylonitrile and 15 to 50% by weight of at least one acrylic ester having the following formula:CH.sub.2 .dbd.CHCOOR.sub.4 wherein R.sub.4 represents an alkyl group having from 1 to 4 carbon atoms, in the presence of 10 to 60 parts by weight of the first branch polymer prepared in the preceding step, to form a second branch polymer and wherein2.0.ltoreq..delta.P.sub.2 -.delta.P.sub.1 .ltoreq.2.70.4.ltoreq..delta.p.sub.3 -.delta.p.sub.2 .ltoreq.0.8 wherein .delta.P.sub.1, .delta.P.sub.2 and .delta.P.sub.3 are solubility parameters of the trunk polymer, the first branch polymer and the second branch polymer, respectively, expressed in terms of (cal/cc).sup.1/2.
摘要:
A heater includes a heating element, a pair of lead wires each connected to an end of the heating element, and an insulating base body in which the heating element and the pair of lead wires are embedded. The insulating base body contains a plurality of metal particles around the heating element, the metal particles being separated from the heating element. The plurality of metal particles and the heating element comprise an elliptical cross-section comprising a same major axis direction. With such a structure, when the heater is rapidly cooled to cause a crack on the surface of the insulating base body, the crack develops along the major axis direction of the metal particles and therefore rarely reaches the heating element. This resists breakage of the heating element.
摘要:
An execution log generation apparatus generates an execution log upon receiving, for each job operation, job operation data indicating content of a job operation performed in a job procedure from a job processing apparatus that performs job processes through job procedures. The execution log generation apparatus includes a definition file holding unit that holds a definition file in which job operations performed in the job procedures are defined along a flow of the job processes and the job procedures, and in which output items to be output as execution logs for the each job operation are listed in a common format; and an execution log output unit that selects, from the definition file, an output item corresponding to a job operation contained in the job operation data, and outputs, as an execution log, the same output item as the selected output item from the job operation data.
摘要:
A wavefront aberration compensating apparatus includes: a deformable mirror which compensates a wavefront aberration of a light flux entered, the deformable mirror including a plurality of electrodes, and a thin-film mirror which changes a configuration thereof in accordance with a voltage value applied to each of the electrodes; an optical system provided with the deformable mirror, and including an object subjected to aberration compensation; a wavefront sensor which receives the light flux traveled through the object and the deformable mirror, and which measures the wavefront aberration of the light flux; and a controller configured to calculate the voltage value applied to each of the electrodes, on the basis of differences, from a signal outputted from the wavefront sensor, between application points on the thin-film mirror and target points both corresponding to the electrodes, respectively, and to repeat compensation of the configuration of the thin-film mirror of the deformable mirror on the basis of the calculated voltage value, such that the wavefront aberration of the light flux measured by the wavefront sensor is suppressed.