摘要:
In a dust removing system, the level of influence of dust sticking to an objective lens of an optical head is detected from either an amount of light emitted from the optical head and reflected from an optical head or from an access time. Three stages of levels with regard to the degree of influence of the dust are set in accordance with such detection value, and a different message for the removal of dust is indicated on a display unit in response to the level of the influence. When the influence is low, a dust removing mechanism is automatically rendered operative to remove the dust. At the first level at which the influence of dust is low, the optical disk in the optical disk device is discharged and cleaning of the objective lens is performed, and an indication is provided on the display unit representing that cleaning is proceeding. When the second stage is detected, the optical disk in the optical disk device is discharged, and a message is indicated on the display unit representing that cleaning of the objective lens should be performed using a cleaning disk. When the third stage is detected, a message is indicated on the display unit representing that cleaning of the objective lens should be performed by manual operation.
摘要:
The present invention relates to a method for producing an ink jet recording sheet characterized by including: applying a coating liquid containing at least both a temperature-sensitive polymeric compound and a pigment the temperature-sensitive polymeric compound having a temperature region where hydrophobicity is exhibited and a temperature region where hydrophilicity is exhibited, the coating liquid becoming more viscous or gelating in the temperature region where hydrophilicity is exhibited, onto either an air-permeable support or at least one undercoating layer provided on an air-permeable support in the temperature region where hydrophobicity is exhibited, to form a coating layer of the coating liquid, bringing the temperature thereof to the temperature region where the temperature-sensitive polymeric compound exhibits hydrophilicity to increase the viscosity of the coating layer or gelate the coating layer, then applying a wetting liquid containing an ink fixing agent (and colloidal particles) onto the viscosity-increased or gelated coating layer, followed by bringing the assembly into contact and press to a heated specular surface and drying to form an ink-receptive layer.
摘要:
A surface acoustic wave (SAW) device includes a comb-shaped electrode 2, a reflector 3 and a plurality of auxiliary electrodes 6a and 6b for surrounding the comb-shaped electrode 2 and the reflector 3, which are electrically independent of each other and have different widths locally. The SAW device is capable of efficiently and electrically uniformizing electric charge generated by pyroelectric property of a piezoelectric substrate 1.
摘要:
A wear-resistant member formed comprises a sintered ceramic body essentially consisting of 0.1 to 15% by weight of at least one material selected from the group comprising molybdenum carbide, niobium carbide, hafnium carbide, tantalum carbide, tungsten carbide, molybdenum silicide, niobium silicide, hafnium silicide, tantalum silicide, tungsten silicide, molybdenum boride, niobium boride, hafnium boride, tantalum boride, and tungsten boride, 2 to 20% by weight of a boundary phase selected from the group consisting of Si--Y--Al--O--N and Si--Y--Al--O--N--B, and a balance of .beta.-silicon nitride. The wear-resistant member preferably has a metal member bonded to the sintered ceramic body. The wear-resistant member can perform high-load work such as high-speed cutting.
摘要:
The present invention provides a manufacturing method for an impeller with which molding and high-quality finishing can be performed extremely easily and quickly through resin molding using a die, and an impeller manufactured by the impeller manufacturing method. A metallic bush is disposed in a die, whereupon a resin material is injected through a gate in the die. A connecting portion between an unnecessary resin portion formed from residual resin material in the gate and a resin impeller main body molded around the bush is formed to be thin, and the unnecessary resin portion is removed from the impeller main body using pushing or withdrawing means.
摘要:
A surface acoustic wave (SAW) device includes a piezoelectric substrate, and on this substrate there are provided comb electrodes for forming an inter digital transducer (IDT), reflector electrodes placed closely along a traveling direction of a surface wave generated by the IDT, and a frame-like short-circuited auxiliary electrode having a width varying depending on its portions. This structure allows to uniform electric charges overall the electrode-surfaces, where the electric charges are generated in a heat treatment applied to the piezoelectric substrate during the manufacturing of the SAW device. Thus even after the device is diced into pieces, this structure can prevent damages of the electrodes or degradation in electrical properties due to an electric discharge generated by accumulated electric charges caused by pyroelectricity of the substrate.
摘要:
In a building box type plug-in modular rack structure for electronic equipment, a box-like shelf accommodates a plurality of printed circuit boards therein. A pair of side frames symmetrical in a right-and-left direction each has a recess at the upper end and a projection at the lower end for respectively mating with the projection and the recess of adjoining side frames. A framework is constituted by the pair of side frames and the shelf interposed between them. Covers cover the outer periphery of the framework. A plurality of frameworks are stacked and connected together by the recesses and the projections of the side frames. A top cover and a bottom cover respectively are fitted on the top and the bottom of the stack of frameworks.
摘要:
A front structure for a vehicle body including a front frame which extends in the longitudinal direction of the side of the engine room of the vehicle. The front frame is formed of an outer frame and an inner frame connected together to form a closed cross section. A dashboard lower panel is disposed near the rear edge of the front side frame and extends vertically. A front floor extends rearward from the lower edge of the dashboard lower panel. A side sill extends in the longitudinal direction along the side of the front floor and is formed of an outer frame and an inner frame connected together to form a closed cross section. The side sill has a projection on its inward side at front end thereof which is connected to the rear portion of the front side frame.
摘要:
A hermetic rotary compressor has a motor unit composed of a stator and a rotor which are arranged in an upper portion of a hermetic housing, an oil-lubricated compressor unit arranged in a lower portion of the hermetic housing, a crank shaft which interconnects said motor unit and said compressor unit, a discharging silencer which is formed by a lower bearing of the compressor unit positioned around the lower end of the crank shaft and a cover of the lower bearing. The hermetic rotary compressor further has a lower balancing weight mounted around a lower shaft end portion of the crank shaft which extends to a position below the discharging silencer and a weight cup surrounding the lower balancing weight. In this hermetic rotary compressor, the lower balancing weight is not disposed within the discharging silencer. Hence, even is the gas-liquid mixture of refrigerant is discharged from the discharging valve into the silencer chamber in the start-up or during liquid-back operation of the compressor, there is no risk that the lower balancing weight undesirably stirs such a fluid.