摘要:
A multidisk containing player comprises: a playing device including a turntable, a pickup, and a disk clamp mechanism, the playing device being provided within a player housing, a magazine accommodating a plurality of disks and being removably mounted on a mounting portion as installed within the player housing, and a transfer mechanism for transferring the playing device toward a disk to be played and loading the playing means to the disk to be played. The magazine includes a housing having an upper half portion and a lower half portion, the two portions being separate from each other.
摘要:
A tape cassette push-out device for a tape recorder includes a push-out mechanism for pushing the rear face of a tape cassette (A) thereby moving the cassette to a cassette insertion opening (2) of the recorder. Before the push-out mechanism is operated, a cassette box (7) for holding the cassette is first moved from a tape driving position to a position adjacent to the backside of the cassette insertion opening. After operation of the push-out mechanism, the mechanism is retractable away from the cassette.
摘要:
A thermal transfer printer including a thermal head for generating heat in accordance with a desired print pattern, a platen having a surface for supporting an ink-sheet and paper, the ink-sheet and paper being pressed by the thermal head on the platen surface so that ink from the ink-sheet is transferred to the paper, a paper supply for storing and supplying paper, an ink-sheet supply and drive for storing and supplying an ink-sheet, the ink-sheet supply and drive driving the ink-sheet to move in accordance with the movement of the paper, a paper drive arranged between the platen and the paper supply, the paper drive driving the paper by the required length according to the position of the paper relative to the position of the platen, and a paper tension device for applying suitable tension to the paper at least between the platen and the paper drive so that the length by which the paper drive drives the paper is identical with the length by which the paper moves on the platen. Since the length by which the paper moves on the platen corresponds only to the length by which the paper drive drives the paper, the length by which the paper moves on the platen can be correctly controlled through the paper drive.
摘要:
A cold cathode device wherein a cold cathode and an anode face each other with an electron transit path intermediated therebetween, and one or more control electrodes structurally insulated from the said cathode and the anode, are provided exposing to the electron transit path. A cold cathode vacuum tube has an electron emission element having a p-type semiconductor region on an electron emission side and a work function lowering region with junctional relation to the p-type semiconductor region; and a plate electrode structurally insulated from the electron emission element by using an insulation layer which is formed with an electron transmit path corresponding in position to an electron emission area of the electron emission element.
摘要:
In a semiconductor laser device for emitting a laser beam of a variable frequency depending on a current applied to the laser device, there are provided a semiconductor substrate, an optical waveguide structure formed on the substrate having two or more semiconductor light emission layers and barrier layers having a wider band gap then that of the light emission layers, alternately stacked, clad layers stacked on the opposite sides of the waveguide structure and having a lower refractive index than that of the waveguide structure, and a device for applying a current to the light emission layers, and the wave guide structure includes at least first and the second light emission layers which respectively emit lights having different wavelengths.
摘要:
A dielectric article comprises a laminate of plural thin dielectric material layers wherein at least one kind of combination of dielectric material layers different in temperature characteristics of permittivity is present and thickness of each layer is 1000 .ANG. or less but not less than of monatomic layer.
摘要:
Interleukin 2 receptor protein having the following properties:(a) molecular weight: 40 to 43 kd,(b) pI of 5.2 to 4.4,(c) amino acid sequence (N-terminal): ##STR1##
摘要:
An electrophotographic apparatus of the retention type is provided with a record paper detection assembly which generates a paper shortage signal when the number of record papers stored in a paper cassette is decreased to a predetermined small number substantially equal to the number of copies which can be formed from a single latent image. When the paper shortage signal is produced during a retention copy for a document, the copying operation is completed for the current document, but further copying operation for a next document is inhibited. After the copying operation for the current document has been finished, an indication lamp is lighted to indicate that the remaining number of record papers in the cassette has been reduced to the predetermined number. Further, the copying operation for the next document which has been set on a document table can be initiated automatically after the paper cassette with a sufficient number of papers stored therein has been attached to the apparatus.
摘要:
A database management system (DBMS) generates a query execution plan including information representing one or more database (DB) operations necessary for executing a query, and executes the query in accordance with the query execution plan. In the execution of the query, the DBMS dynamically generates tasks for executing the DB operations and executes the dynamically generated tasks. The query execution plan includes a plurality of query blocks, which are sets of one or more DB operations. When newly generating a task, the DBMS executes determination processing of simultaneous-task-generation number. The determination processing of simultaneous-task-generation number is to calculate, targeting each of the query blocks, the number of simultaneous task generation, which is the number of tasks simultaneously generatable as tasks for executing the query block. The number of the dynamically generated tasks is equal to or smaller than the number of simultaneous task generation.