摘要:
A reflective type liquid crystal display which has a liquid crystal composition exhibiting a cholesteric phase in a room temperature and a columnar structure between substrates with ITO electrodes thereon. The liquid crystal composition is a chiral nematic liquid crystal composition which is produced by adding a chiral agent at a ratio within a range from 10 wt % to 45 wt % to nematic liquid crystal which contains a nematic liquid crystal component with a polar group at not less than 25 wt % and of which transition temperature to isotropic phase is within a range from 70° C. to 150° C. The anisotropy of refractive index of the liquid crystal composition is 0.10 to 0.22, and the anisotropy of dielectric constant is 5 to 30.
摘要:
A composite material includes a cholesteric liquid crystal; a polymer which is distributed in phase-separated domains and provides an effective form-retention property for the composite material; and an additional material which is dissolved in the cholesteric liquid crystal and maintains a cholesteric phase of the liquid crystal and bistability of a focal conic state and a planar state of the liquid crystal.
摘要:
A straight-chain organopolysiloxane represented by the general formula: ##STR1## wherein R.sup.1 represents a monovalent hydrocarbon group, R.sup.2 represents a bivalent organic group, Rf represents a perfluoroalkyl ether group or a perfluoroalkyl group, X represents a hydrogen atom or an organosilyl group, and n is an integer of 15 to 4,000 and having a content of cyclic polysiloxanes with a molecular weight of 3,000 or below of 50 ppm or below. This organopolysiloxane is novel in that the content of cyclic siloxanes with a molecular weight of 3,000 or below is only 50 ppm or below and the organopolysiloxane can obviate contact failure due to volatilization of components or surrounding contamination due to bleeding when used as materials in the field of electricity and electronics or as building materials.
摘要:
An organopolysiloxane composition comprising (A) a linear, alkenyl-containing, fluorinated organopolysiloxane, (B) a cyclic fluorinated organosiloxane as a tackifier, (C) an organohydrogenpolysiloxane having at least two hydrogen atoms attached to a silicon atom in a molecule, and (D) a platinum group metal catalyst has excellent properties inherent to fluorinated silicone rubber, and cures into products having adhesion and close contact to various materials including metals, glass and resins.
摘要:
A device for determining deterioration of a catalytic converter for an engine equipped with a catalytic converter disposed in the exhaust passage and upstream and downstream air-fuel ratio sensors disposed in the exhaust passage upstream and downstream of the catalytic converter, respectively, wherein the device calculates the area surrounded by the output response curve of the downstream air-fuel ratio sensor and a predetermined reference value line, the device determining whether or not the catalyst is deteriorated in accordance with the area calculated when the output of downstream air-fuel ratio sensor stays on a rich side or lean side air-fuel ratio for more than a predetermined time during feedback control of air-fuel ratio by the output of upstream air-fuel ratio sensor.
摘要:
A recorder with a pencil pen which contains a plurality of pencil leads therein comprises means for causing a lead chuck mechanism of the pencil lead to hold and release the pencil lead and means for vertically moving a pencil lead displacement mechanism of the pencil pen. Those means are alternately activated by lead feed/eject means to eject a consumed unnecessary pencil lead and drive out a new pencil lead and hold it at a recording position. Since the pencil leads can be automatically ejected and driven out, a recording efficiency is improved and long period continuous recording is attained with a single pencil pen. A lead feed/eject holder is provided to eject a residual lead of the pencil pen, and a processing unit for processing the ejected residual lead is provided. Thus, the recording efficiency is further improved.
摘要:
Disclosed is an engine having an air-fuel ratio control apparatus for obtaining various air-fuel ratios, the range of which is between the stoichiometric air-fuel ratio or lower than that ratio and the high air-fuel ratio providing a very lean air-fuel mixture. A plurality of ignition timing maps is provided, these maps having a respective order of priority determined by the air-fuel ratio. During operation of the engine, parameters substantially related to the air-fuel ratio ranges are detected, and a map having the highest order of priority is selected from the maps which meet the engine parameters. The ignition timing is calculated from the selected map.
摘要:
A method of producing an oil seal comprises the following steps: a slicing step in which a seal ring is sliced from an end of a tubular billet of a resin material in a predetermined axial thickness; a fixing step in which the radially outer portion of the seal ring is fixed in the support member; and a bending-out/thread-forming step in which the radially inner portion of the seal ring is bent out of the plane of the radially outer portion of the seal ring thereby forming a tubular seal lip, and sequentially after forming of this seal lip, a screw thread is formed on the inner peripheral surface of the tubular seal lip. The fixing step is conducted by a press having an upper die and a lower die, in which the seal ring is fixed in the support member. The bending-out/thread-forming step is conducted by the press in which the radially inner portion of the seal ring is deformed into the tubular seal lip, and a screw thread is formed on the inner peripheral surface of the tubular seal lip by means of a mandrel having a tap. The bending-out/thread-forming step may be conducted in advance of the fixing step.
摘要:
In an internal combustion engine, when the opening of a throttle valve is smaller than a relatively small definite value, the feedback of the air-fuel ratio of the engine is controlled so that the air-fuel ratio is brought close to a first target air-fuel ratio. When the opening of the throttle valve is equal to or larger than a relatively small definite value and is smaller than a relatively large definite value, the feedback of the air-fuel ratio of the engine is controlled so that the air-fuel ratio is brought close to a second target air-fuel ratio on the rich side with respect to the first target air-fuel ratio. Further, when the opening of the throttle valve is equal to or larger than the relatively large definite value, the air-fuel ratio of the engine is controlled to be a power fuel increment air-fuel ratio.
摘要:
In an internal combustion engine having two bypass air passages for controlling the idling speed, one (first) of the bypass air passages is controlled in accordance with the engine speed, and the other (second) is controlled in accordance with the ON and OFF state of an electrical load such as an air conditioner. When the electrical load is in the ON state, the first bypass air passage is not closed. Also, before a predetermined time period passes after the electrical load is changed from the ON state to the OFF state, the first bypass air passage is not closed.