摘要:
An apparatus for switching a video signal comprises a switch for switching a video signal from one to another, a memory for storing an output of the switch, a detector for detecting a switch signal, a switch control circuit for controlling the switch in response to the switch signal, and a memory control circuit for controlling writing and reading of the memory, wherein when the switch signal is detected, the memory control circuit continues to write one video signal until a sync. (synchronizing) signal of the one video signal is detected and after a predetermined period write another video signal when a sync. signal of the other video signal is detected.
摘要:
A method of producing an electrode useful as anode of a liquid fuel cell using methanol as fuel. The method has the steps of coating and impregnating a porous electrode body made of carbon with a noble metal such as platinum, activating the noble metal present on and in the electrode body and then depositing a base metal such as tin onto the surfaces of the electrode body coated with the activated noble metal for the purpose of maintaining the activated state of the noble metal coating. To rapidly accomplish the deposition of the base metal while the noble metal remains in the activated state, the method comprises an additional step of immersing the electrode body with the noble metal deposited thereon in a solution containing ions of the base metal precedent to the activation step. For the same purpose, it is very favorable to form through-holes in the electrode body for use in this method.
摘要:
Molten slag fresh from a smelting or refining furnace is ladled into a pan on a wheeled carriage and is thereby transported to a first heat recovery station, where water is heated by radiation from the slag while the latter is being agitated and granulated. On granulation the slag is conveyed as by a skip hoist to a second heat recovery station, where the residual heat of the slag is utilized to heat air by convection. The heated air is directed into a utility device such as a boiler, from which the cooled air is fed back to the second heat recovery station for reheating. Several embodiments are disclosed.
摘要:
A floating-refuse-collecting boat of a twin-hulled construction includes a floating-refuse collector located in the water channel formed between the hulls. A plurality of main water-jet units are installed on the bows of the hulls for directing jets of water rearwardly through the water channel for guiding and forcing the refuse afloat in the vicinity of the entrance into the channel and toward the collector. In addition, a plurality of auxiliary water-jet units are mounted on the hulls rearwardly of the main water-jet units and in front of the collector to provide jets of water which prevents refuse from flowing out of the collector when the boat moves astern.
摘要:
An apparatus comprising a round-like housing having two assemblies therein. In one assembly there is a group of extending members each having affixed thereto metal backing members, which are alternatively either segment-like or inverted segment-like and have mounted a pair of rollers facing each other across a weld backing strip, the extending members being movable and workable in alternative shifts. In the other assembly the extending members each have affixed thereto a roller, the extending members being movable and workable all in one movement. There are fluid cylinder mechanisms in the assemblies for moving the members in the above-mentioned manner. The aligning, the expanding and the welding of pipes are easily and stably accomplished by such apparatus performed without need of any tack welding.
摘要:
Provided is a stator for a rotary electric machine, capable of reducing a space on an end surface of a stator core on an inner diameter side to reduce a size in an axial direction to realize a compact size by maintaining an insulating distance corresponding to a potential difference. In the stator for a rotary electric machine according to the present invention, a coil portion includes a coil main-body portion (21) and a second connecting wire (23). The second connecting wire (23) includes a first bent portion (24) and a second connecting-wire end portion (23A). The second connecting wire (23) is configured so that a differential value of a length z in the axial direction of the stator to a length r in the radial direction of the stator is Δz/Δr≧0.
摘要:
A signal processing circuit transfers a signal between an externally connected device and an internal circuit. The signal processing circuit includes a clock selector that selects and outputs any one of clocks received from plural systems; data latch units that respectively latch, according to the respective clocks received from the systems, data pieces being input; a data selector that selects and outputs, among the data pieces latched, a data piece latched according to the selected clock; and a data retaining unit that temporarily retains the data between the data latch units and the internal circuit. When the data is processed between the data retaining unit and the internal circuit, the data retaining unit operates according to an operating clock of the internal circuit, but when the data is processed between the data retaining unit and the data latch units, the data retaining unit operates according to the selected clock.
摘要:
A display device includes a pixel array having a plurality of pixels, a plurality of first signal lines and a plurality of second signal lines. A first driving circuit outputs scanning signals to the plurality of first signal lines, and a second driving circuit outputs display signals to the plurality of second signal lines. Each pixel of the plurality of pixels is operated in a normally black-displaying mode, the first driving circuit repeats a first step of sequentially selecting N lines of the plurality of first signal lines and a second step of selecting Z lines of the plurality of first signal lines that are separate from the N lines, where N and Z are natural numbers, and the second driving circuit repeats outputting N times the display signals and outputting one time a blanking signal which masks an image displayed on corresponding pixels.
摘要:
An epitaxial growth method includes: supporting a substrate for growth (for example, an InP substrate) with a substrate supporter, growing a compound semiconductor layer comprising 3 or 4 elements (for example, a III-V group compound semiconductor such as an InGaAs layer, AlGaAs layer, AlInAs layer and AlInGaAs layer) on the substrate for growth by metal organic chemical vapor deposition, polishing the substrate so that an angle of gradient is 0.00° to 0.03° or 0.04° to 0.24° with respect to (100) direction in the entire effective area of the substrate, and forming the compound semiconductor layer to be 0.5 μm thick or more on the substrate by using the substrate for growth.
摘要:
It is to provide a vapor phase growth method in which an epitaxial layer consisting of a compound semiconductor such as InAlAs, can be grown, with superior reproducibility, on a semiconductor substrate such as Fe-doped InP. In vapor phase growth method for growing an epitaxial layer on a semiconductor substrate, a resistivity of the semiconductor substrate at a room temperature is previously measured, a set temperature of the substrate is controlled depending on the resistivity at the room temperature such that a surface temperature of the substrate is a desired temperature regardless of the resistivity of the semiconductor substrate, and the epitaxial layer is grown.