摘要:
An electrophotographic method is disclosed, in which electrostatic latent images are formed on an electrophotographic photoconductor by exposure of the photoconductor to a light beam, and the formed electrostatic latent images are developed to visible toner images by a developer comprising toner particles, with the minimum diameter D of the light spot of the light beam on the photoconductor and the volume mean diameter X.sub.w of the toner particles being in the relationship of (D).mu.m.gtoreq.9.0.times.(X.sub.w).mu.m-34.
摘要:
The present invention provides a positively chargeable for use in dry type electrophotography that contains, as a charge controlling agent, a lake (blue pigment) of a compound represented by the general formula: ##STR1## [Wherein, R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 are H, CnH.sub.2 n+1(n is an integer of 1-5) or ##STR2## These R.sub.1 -R.sub.6 may be the same or different].
摘要:
A die for extruding honeycomb structural bodies includes a plurality of ceramic batch exhaust grooves and a plurality of ceramic batch supply apertures. Tubes are fitted in at least some of the ceramic batch supply apertures to improve or make constant the surface roughness and dimensions of inner surfaces of ceramic batch supply apertures through which the ceramic batch passes, thereby producing perfect ceramic honeycomb stuctural bodies. The adjustment of flow of ceramic batch is so simplified that any other controlling plate which would be required in the prior art is not needed for controlling the flow. When the supply apertures have been worn off, the tubes are exchanged by new ones to restore the required inner surfaces easily.
摘要:
A fungicidal composition which comprises as an active ingredient a 1,8-disubstituted carbostyril derivative of the formula: ##STR1## wherein R is a chlorine, bromine or fluorine atom or methyl group, A is an ethylene or vinylene group and X is an oxygen or sulfur atom, and an inert carrier or diluent.
摘要:
A method of manufacturing fluorescent material-dispersed glass, comprising: performing production of a fluorescent material-dispersed gel utilizing sol-gel reaction and acid-base reaction by preparing a fluorescent material-dispersed sol containing silicon alkoxide, metal chloride and/or metal aklkoxide, and fluorescent material, and subsequently gelling the fluorescent material-dispersed sol; and performing production of a fluorescent material-dispersed glass by heating the fluorescent material-dispersed gel.
摘要:
A vehicle surroundings monitoring device carries out a position mapping process of expressing a positional relationship in the detection ranges of distance sensors 2 for detecting an obstacle 100 by coordinates on a camera image captured by a camera unit 3 having an image capture range in the surroundings of a vehicle, derives transformation parameters used for carrying out a mapping transformation in such a way that the obstacle detected by the distance sensors 2 is placed at a predetermined position on the camera image on which the position mapping process has been carried out, and carries out an image transformation on the camera image by using the transformation parameters in such a way that the obstacle is placed at the predetermined position.
摘要:
An obstacle detection device includes one or more emitter ultrasonic sensors, each emitting an ultrasonic wave toward an obstacle, and one or more detection ultrasonic sensors for reception, each detecting a reflected wave from the obstacle. A control unit drives a specific one of the emitter ultrasonic sensors to cause it to emit an ultrasonic wave, stops the emission of the ultrasonic wave by the specific emitter ultrasonic sensor at the time that one of the detection ultrasonic sensors detects a reflected wave from the obstacle, and carries out detection of the obstacle and measurement of the distance to the obstacle from the time that the control unit stops the emission of the ultrasonic wave by the emitter ultrasonic sensor and the time that the reflected wave cannot be detected anymore.
摘要:
The present invention provides a diene polymer in which a polar functional group is introduced into an end by radical polymerization, and its production method; a polymer emulsion and a rubber composition each containing the diene polymer; and a pneumatic tire containing the rubber composition. The present invention relates to a diene polymer, which is obtained by radical polymerization of at least one radical polymerizable monomer in the presence of at least one polar functional group-containing thiol compound, and has a polar functional group at at least one end: The polar functional group-containing thiol compound is preferably represented by formula (1): X—R1—SH (1) wherein X represents an ester group, a hydroxyl group, a carboxyl group, an amino group, or an alkoxysilyl group, and R1 represents an alkylene or arylene group which may have a substituent.
摘要:
An airborne ultrasonic sensor is obtained in which a sensor body and a housing have an integrated structure, and which can reduce spurious waves which propagate through the housing to arrive at the sensor body. The sensor is provided with the sensor body that radiates ultrasonic waves into air and at the same time receives reflected waves from a reflection source which exists in the air, a transmission and reception device that drives the sensor body and at the same time obtains a distance to the reflection source or a propagation speed of sound based on the reflected waves, and the housing that has the sensor body fixedly secured thereto with an integrated structure. The housing has groove portions which are different in acoustic impedance from their surroundings. The groove portions are arranged obliquely regarding either one of a horizontal direction or a vertical direction of the sensor body.
摘要:
An obstacle detection device controls distance sensors to cause the distance sensors to transmit a transmission wave during a fixed time period, measures a first time which has elapsed from a time at which the transmission starts to a time at which a reflected wave is detected, and a second time which has elapsed a time at which the above-mentioned transmission is stopped to a time at which the reflected wave disappears, and determines that an obstacle exists when a time difference between the above-mentioned first time and the above-mentioned second time is equal to or shorter than a predetermined allowed time. Therefore, the obstacle detection device can reduce the time required for the determination to at least one-half that provided by a related art technique, and improves the accuracy of the detection of an object moving at a relatively high speed.