摘要:
A 1,4-bis(2',2'-diphenylvinyl)benzene derivative represented by formula (I): ##STR1## wherein R.sup.1 and R.sup.2 each represents a different lower alkyl group and Me represents a methyl group, a charge transporting material containing the compound (I), and an electrophotographic photoreceptor comprising a charge transporting layer containing the charge transporting material are disclosed.
摘要:
An apparatus for detecting velocity of an object, includes a light source for generating light having a wavelength .lambda., a light-transmission block for receiving the light from the light source, and guiding the light onto the object, and a photosensor for detecting the light from the object on which the light from the light-transmission block is incident. The light-transmission block is integrally constituted by a diffraction grating for diffracting the light from the light source to produce two diffraction lights, and an optical element for causing the two diffraction lights from the diffraction grating to be incident onto the object at a predetermined incident angle. The diffraction grating and the optical element are arranged so as to have substantially constant sin.theta./.lambda. independently of a change in wavelength .lambda. of the light from the light source where .theta. is the incident angle of each diffraction light onto the object. A velocity of the object is detected through detection by the photosensor.
摘要:
An apparatus for detecting the velocity information of an object comprises the irradiation optical system for performing the irradiation of beam to the predetermined position on an object to be measured; the photodetector for detecting the light from the irradiated object by the irradiation optical system, the velocity information being obtained by the detection; the detector for detecting the irradiating state for detecting the deviation of the irradiating position of the beam on the object to be measured; and the adjuster for adjusting the irradiating state of the beam on the object based on the detection result of the detector for detecting the irradiating state. With such constituents as above, the apparatus is capable of dealing with the fluctuation of the lightning to obtain a high-precision detection of the velocity information at a high speed.
摘要:
An apparatus for recording an image on a recording medium comprises a platen, a recording head arranged to oppose said platen for recording the image on the recording medium, first conveying member arranged upstream of the platen along a conveying direction of the recording medium for conveying the recording medium, second conveying member arranged downstream of the platen along the conveying direction of the recording medium for conveying the recording medium; guide member for guiding the recording medium when the recording medium is fed from the first conveying member to the second conveying member, and driving motor for causing the guide member to set at an operative position where the member guides the recording medium and a retracted position where the guiding member is retracted from the operative position.
摘要:
A liquid jet recording apparatus is provided with a recording head for discharging liquid to thereby effect recording, a carriage movable with the recording head mounted thereon, a first motor for driving the carriage, a tank for storing therein the liquid to be supplied to the recording head, a pedestal, movable with the tank mounted thereon, and a second motor for driving the pedestal.
摘要:
In apparatus for measuring injection speed of a die cast machine, there are provided a pulse generator responsive to a movement of an injection plunger for producing a pulse signal, a detector for detecting a width of the pulse signal to produce pulse width data, a memory device successively storing the pulse width data between commencement and termination of injection, and an arithmetic operation circuit for calculating an average speed in a predetermined high speed section of a stroke of the injection plunger based on pulse width data stored in the memory device.
摘要:
Herein disclosed is a reclining device which can keep the latched engagement between a lock lever and a lock plate member even when, due to for example, sudden sitting of a person onto the seat, an abnormally big force is suddenly applied to the lock lever in a direction to cancel the latched engagement with the lock plate member. An operation lever is biased in a direction to cause a leaning end thereof to press a lug of the lock plate in a direction to achieve the latched engagement. The lock plate member, the lock lever and the operation lever are so arranged that when the leading end of the operation lever is pressed against the lug of the lock plate, the top of the leading end is placed at an opposite side of a pivot pin of the lock lever with respect to an imaginary line which passes through both a pivot pin of the lock plate member and a pivot pin of the operation lever.
摘要:
An evaluation unit includes a front-rear acceleration sensor and an up-down acceleration sensor. The evaluation unit calculates a length of a track obtained by plotting detected front-rear and up-down accelerations on a three-dimensional space along a time axis within a period from gear shift start of an automatic transmission to gear shift end, calculate a track length per unit time by dividing the length of the track by a time interval from the gear shift start to the gear shift end, and evaluates that a gear shift shock is larger as the track length per unit time is longer.
摘要:
A metal bonded grinding stone is manufactured by heating and pressurizing a material including abrasive grains, a cobalt, a tungsten disulfide and a copper tin alloy to obtain a sintered product, and rapid-cooling the sintered product.
摘要:
There is provided a novel pyrrole-imidazole polyamide compound for alkylating the specific base sequence of DNA, the polyamide compound being capable of being synthesized through fewer reaction steps than known hybrid molecules and having a combination of a high reactivity in DNA alkylation and the ability to recognize a sequence. Furthermore, there is provided an alkylating agent and a molecule serving as a drug, the alkylating agent and the molecule containing the polyamide compound.An indole derivative is represented by general formula (1): wherein R1 represents a functional group for alkylating DNA; R2 represents a hydrogen atom, an alkyl group, or an acyl group; and X represents a divalent group having one constitutional unit or having two or more constitutional units which may be the same or different, the constitutional unit being represented by the following formula: (wherein m is an integer of 0 to 10), wherein among the constitutional units, a terminal constitutional unit adjacent to R2 may be a constitutional unit represented by the following formula: (wherein k is an integer of 0 to 10).