摘要:
A heterojunction semiconductor device includes a first Schottky contact layer made of a first semiconductor, a second Schottky contact layer made of a second semiconductor and a metal electrode. The first Schottky contact layer, the second Schottky contact layer and the metal electrode are laminated in this order on a semiconductor substrate or on a main structure of a semiconductor device laminated on a semiconductor substrate from the substrate side or from the main structure side. The first Schottky contact layer serves as a barrier layer toward the second Schottky contact layer, and a layer thickness of the second Schottky contact layer is greater than the mean free pass of carriers in the second Schottky contact layer.
摘要:
When read image data is mapped outside the range of a page memory, the invention allows a coordinate value to be stored in the page memory to be mapped after being shifted into the page memory, thereby allowing efficient utilization of the page memory, and in order to achieve the above-described object, the invention employs the configuration that when an integral number coordinate value (X.sub.int, Y.sub.int) is out of the range of an image memory, an X-coordinate conversion circuit and a Y-coordinate conversion circuit shift the coordinate value so that it comes in the range and outputs a coordinate value (XINT, YINT) and this shifting process allows read image data outside the image memory to be shifted into the area of the image memory to be stored therein and when image data stored in the image memory is read out, the coordinate is read out in reverse on the assumption that a shifted origin coordinate O (X.sub.smin, Y.sub.smin) serves as the coordinate origin of the image memory and the origin coordinate O (X.sub.smin, Y.sub.smin) is automatically stored in a register when the reading of the image is completed.
摘要:
A waterproof automatic weighing apparatus comprising a case hermetically sealed by means of sealing members, internal components lodged in this case, and external components arranged outside this case. The internal components include weight sensing elements, driving sections for opening and closing hopper gates, electromagnetic vibrator sections, and a control unit having an electrical circuit. The external components include a dispersion table, feed troughs, pool hoppers, weighing hoppers, and, as needed memory hoppers. Each of the internal components is hermetically connected to the corresponding external component.
摘要:
First and second voltages of different levels are supplied to first and second key switches, which are consecutively turned on with the depression of a performance key on a keyboard. The output terminals of the first and second key switches are commonly connected to a common connection node, which is in turn commonly connected to input terminals of first and second buffers having different input threshold levels. A tone signal with a touch response is obtained through a response data generating circuit according to the outputs of the buffer circuits.
摘要:
A printer is used for printing the output of an electronic balance, for example, having a printing roller as a component of a printing unit. The printing roller is adapted to be driven by a motor and to feed the printing sheet by its own rotation when a printing head presses the printing sheet against the printing roller and impresses a given print on the printing sheet.
摘要:
An electronic timepiece, which comprises a circuit for encoding an externally supplied voice and a semiconductor memory for memorizing the encoded voice data. The voice data memorized in the semiconductor memory is read out when a preset time is reached, and the data thus read out is converted into a voice signal which is coupled to a sound producing device such as a loudspeaker for the reproduction of the voice.
摘要:
An exhaust gas purification catalyst includes a composite oxide support, and a precious metal catalyst supported on the composite oxide support. The composite oxide support includes alumina, zirconia, ceria, a first additive element oxide and a second additive element oxide. The first additive element oxide contains an additive element selected from the group consisting of rare earth elements excluding cerium and alkali earth elements. The second additive element oxide contains an additive element selected from the group consisting of rare earth elements excluding cerium and alkali earth elements. In the composite oxide support, alumina is contained in a range of 30 to 40% by mass and zirconia is contained in a range of 36 to 46% by mass.
摘要:
The optical connector has the plug for holding the plurality of optical fibers arranged in parallel in a left-right direction, and the receptacle and the board for holding the plurality of optical waveguides arranged in parallel in a left-right direction. The plug has the lower surface located along a direction the plurality of optical fibers arranged. The receptacle has, at the part which projects toward a side of the first holding member, the bottom surface which faces the lower surface and positions the lower surface, when butting joint the plurality of optical fibers and the plurality of optical waveguides. Further, a space which is located between the lower surface and the bottom surface is located below the plurality of optical fibers.
摘要:
A regeneration apparatus comprises a heater 2 which heats a catalyst 1 at the time of stopping fuel supply to an engine, a pump 4 which supplies an oxidizing gas or a reducing gas to the heated catalyst 1 and a switching valve 3. In the oxidizing step, catalytic poisons, for example hydrocarbon, which are absorbed on a noble metal are oxidized and removed. The particles of the noble metal become oxidized particles as pure oxide and the like. After the oxidizing step, the reducing step is carried out. In the reducing step, particles of the noble metal are reduced and re-dispersed on the support simultaneously and as a result, the particles of the noble metal become fine. Thus, a deteriorated catalyst can be regenerated without interrupting the use of catalyst and also without deteriorating the drivability.