摘要:
.alpha.-Silicon nitride powder which is used as a raw material for the preparation of high strength silicon nitride with additives such as magnesia and yttrium oxide, and other sintered materials suitable for high temperature gas turbine engine components and the like, is prepared by heating a powdered mixture of silica, carbon and metallic silicon in a nitrogen containing atmosphere and then subjecting the material to a heat treatment in an oxidizing atmosphere for decarbonization of said material.
摘要:
A semiconductor wafer evaluation apparatus, wherein a conductivity detector and a carrier mobility detector are independently arranged so that detections can be made under optimum conditions, respectively. A wafer carrying unit is arranged so as to carry or convey a semiconductor wafer on a carrying path between the two detectors. These components are controlled by a controller. A carrier concentration is calculated from the conductivity and the carrier mobility detected by both detectors. When a partition wall for preventing interference of an electromagnetic wave is provided between the conductivity detector and the carrier mobility detector, interference between the two detectors is further reduced.
摘要:
A compact light-emission gun amusement machine for home use, comprising a light source, a screen, a mirror as disposed between the screen and light source, the angle of reflection of the mirror being variable to project a moving mark on said screen, a light-emission weapon and a novel hit indicating device in a novel combination. The hit indicating device includes a mirror vertical drive mechanism connected to a driving shaft driven by an electric motor and a mirror horizontal drive mechanism which is associated with the driving shaft in such relation that the former is driven only when the latter is driven in a reverse direction. Thus, as the motor is driven in a normal direction, the mark is caused to move in a composite direction made up of horizontal and vertical components to simulate a flight of a winged creature, while as the same motor is driven in reverse, the horizontal drive of the mirror is suspended to cause the mark to move in a vertically downward direction only across the screen to simulate a fall of the creature shot by the weapon.
摘要:
A suspend control apparatus, disposed in an electronic device having a SIM card, includes a control unit that switches the state of the SIM card between a suspended state and a resumed state. The control unit determines, based on the state of SIM card access for data communication and the state of the SIM card when the data communication occurs, whether to give priority to SIM card access or switching to the suspended state, and sets the state of the SIM card accordingly.
摘要:
An antioxidant composition can be obtained efficiently at high yields by (a) adding ethanol to a hot water fraction of an oyster meat to a final concentration of not less than 40 (w/w) % to obtain a supernatant (step 1), (b) concentrating the obtained supernatant to a solid content of 30-45 (w/w) % (step 2), and (c) adding ethanol thereto to a final concentration of 55-70 (w/w) % to recover precipitates (step 3).
摘要:
A parison, as a precursor of a container, composed at least of a thermoplastic resin (resin A) and another thermoplastic resin having excellent gas-barrier property (resin B) and containing a multilayered resin layer at least in an intermediate layer between an outermost layer and an innermost layer each composed of resin A at parts other than the open end part of the mouth portion of the parison, or wholly in the parison, said multilayered resin layer being formed by using an injection-molding machine equipped with a static mixing-stirring device provided in a nozzle portion of an injection cylinder, or in a mold, or in a resin flow passage between the nozzle portion and a mold, and injecting the resins A and B through the static mixing-stirring device so that flows of the resins A and B are divided in a plurality of thin layers parallel to the flowing direction; and a process for production thereof. A container obtained by biaxially stretching and blow-molding the said parison has excellent transparency, gas-barrier property and mechanical strength.
摘要:
An input/output device for a programmable controller provided separately from said device capable of performing the bidirectional transmission such as taking in the input data and sending out the output data only by connecting the main unit of said controller to said input/output device or devices with two systems of signal line consisting of a serial data conductor and a clock signal conductor.
摘要:
A suspend control apparatus, disposed in an electronic device having a SIM card, includes a control unit that switches the state of the SIM card between a suspended state and a resumed state. The control unit determines, based on the state of SIM card access for data communication and the state of the SIM card when the data communication occurs, whether to give priority to SIM card access or switching to the suspended state, and sets the state of the SIM card accordingly.
摘要:
A defect-recognition processing apparatus converts into a defect image pattern, via a television camera, crystal defects present on the surface of an object under inspection, to process an image signal, by means of an image processing device, which corresponds to the defect image pattern, to measure rectangular images in terms of their length and their ratio between L.sub.Y and L.sub.X (L.sub.Y : a length in a longitudinal direction and L.sub.X : a length in the lateral direction of the wafer) and to detect defects developed on the surface of the aforementioned object.
摘要:
A light-emission gun amusement machine for projecting a light image onto a screen and for receiving a reflected image from said screen. The device uses a light-emission gun, and has a machine housing separate from the light-emission gun and the screen. Within the housing are: a light source, a photoelectric element above the light source; and a lens system between the light source and the photoelectric element within the housing and the screen outside the housing for coaxially aligning the light rays from the light source to the screen and the light rays from the screen returning toward the photoelectric element. Furthermore, there is an electrically operative motor within the housing with a main shaft operatively connected thereto, and an electric power source connected to the light source and the motor. A power source control means actuated by the photoelectric element reverses the electrical connection between the power source and the motor when light is reflected from the screen onto the photoelectric element, thereby reversing the normal rotational direction of the motor. Finally a target producing means is contained within the housing between the light source and the photoelectric element and is operatively connected to the main shaft for producing target and hit images of the light source on the screen.