摘要:
A high-hardness metal skin film is formed of an aggregate of metal crystals. The area rate A of pyramid-shaped metal crystals in a surface of the skin film is in a range of A.gtoreq.40%. The aggregate contains at least one element selected from boron (B), carbon (C) and hydrogen (H) as an added element, wherein the B content is in a range of B.gtoreq.0.01% by weight, the C content is in a range of C.gtoreq.0.03% by weight, and the H content is in a range of H.gtoreq.0.01% by weight. The skin surface takes on an intricate aspect due to the presence of a large number pyramid-shaped metal crystals and hence, has a good oil retention. In addition, the wear of each pyramid-shaped metal crystal is inhibited by an increase in hardness produced with the containment of boron and/or carbon and/or hydrogen and therefore, the oil retention is maintained.
摘要:
A slide surface construction is formed of an aggregate of Fe crystals having a body-centered cubic structure. The aggregate includes {222} oriented Fe crystals with their {222} planes by Miller indices oriented toward a slide surface. The content S of the {222} oriented Fe crystals is in a range represented by S.gtoreq.20%, preferably in a range represented by S.gtoreq.40%. The {222} oriented Fe crystals form a trigonal pyramid shape on the slide surface, which provides good oil retention for the slide surface construction. Thus, the slide surface construction exhibits an excellent seizure resistance.
摘要:
Before an optical disk is inserted into an electronic filing system, one of three mode-setting keys provided on a keyboard is pushed, thereby setting an automatic mode for permitting automatic updating of retrieval data items, an inhibit mode for inhibiting the automatic updating of retrieval data items, and a select mode for selecting the automatic updating of retrieval data items or the inhibition thereof. The mode, thus set, is recorded on a magnetic disk. When the optical disk is inserted into the system, the mode is read from the magnetic disk. The mode read from the magnetic disk controls the updating of the retrieval data items recorded on the magnetic disk.
摘要:
A processor performs a pipelined parallel processing by an operand effective address calculation unit for calculating an operand effective address necessary to execute an instruction and an instruction execution unit for executing the instruction. A 64 bit width data operation is performed in such a way that a high order 32 bit operation is performed in an arithmetic device in the operand effective address unit and a low order 32 bit operation is performed in another arithmetic device in the instruction execution unit. A carry is transferred from the low order 32 bit arithmetic device to the high order 32 bit arithmetic device. The arithmetic devices thus joined can perform the 64 bit with data operation as an arithmetic device.
摘要:
A plurality of picture data storage/retrieval apparatuses are connected to each other through a communication line. Each picture data storage/retrieval apparatus has a two-dimensional scanning device for inputting picture data, a keyboard for entering control data, an optical disk for storing the picture data input through the two-dimensional scanning device, a floppy disk for storing a control program, a CRT display device for displaying the picture data stored in the optical disk, a printer for producing a hard copy of the picture data stored in the optical disk, and a communication control unit. When a given apparatus desires registration, retrieval or deletion of picture data in another apparatus, a control unit of the given apparatus communicates with the another apparatus through the communication control units.
摘要:
An image information filing apparatus having a first storing medium with a finish data area. A recognition code is previously stored in the first storing medium. After the recognition code of the first storing medium has been written into a second data storing medium, finish data is written into the finish data area of the first storing medium. Both the finish data written into the first storing medium and the recognition code written into the second storing medium allow a one-to-one correspondence between the first and second storing mediums.
摘要:
There is disclosed a current type inverter excellent in transient response which comprises a two-phase sine wave generator for receiving signals corresponding to a motor speed signal and a speed deviation signal, to provide sine waves shifted 90.degree. in phase, and a vector calculating circuit for calculating stator current instruction vectors from exciting current components and torque current components, the outputs of the vector calculating circuit being applied as frequency instruction signals of a conventional current type inverter.
摘要:
In a control device of an AC motor wherein a torque equivalent to that of a DC motor is created by controlling the instantaneous values of its stator current, or in a vector control device, signals from a position detector such as a resolver coupled to the AC motor are utilized to form stator current instruction signals and to provide rotation position feed-back signals and rotation speed feed-back signals for the AC motor, thereby to perform precise servo-control.