摘要:
Automatic layout planning without previously specifying place of each parts is made possible by utilizing groups of rules each comprising a condition section and a procedure section. An appropriate group of rules can be called from a knowledge base according to an intermediate layout plan generated in a data structure by a rule interpreter.
摘要:
An autonomous resource management method for improving performance of a system in which plurality of process units compete for resources. Previously determined allocation policies are stored in memory along with system status data, control data and an evalution of the effectiveness of the allocation policy. During the operation of the system, the status is detected and an allocation policy is retrieved from memory based on the detected status. The allocation policy is then modified and sent to the scheduler. The effect of modifying the allocation policy is detected and an evaluation of the modified allocation policy is stored in memory. Inferior allocation policies are deleted from memory.
摘要:
The structure of a circuit which is given basic net data is stored as a pattern, the compliance of the basic net data with the pattern is checked by the separately prepared search function, and upon fulfillment of compliance the pattern is determined to exist within the circuit. The subcircuit to be recognized by elements is not directly defined, but is defined using an intermediate expression defined recursively so as to implement a search through pattern matching. In another form, one input terminal is specified, which is followed by a search for blocks having the terminal as an input node and the search for blocks having one of the output node strings as an input node recursively and cyclically until the output terminal is reached, so as to extract a string of nodes on which the signal is propagated. The system is provided with functions for recognizing and comprehending subsidiary structures of the circuit which are not defined by the entered net data. By the combinational use of the recognition result and the layout shape generating function prepared separately, the layout shape of the subsidiary structures are determined. Shapes of objects determined through the above process are laid out automatically, while avoiding obstacles, within a predetermined space. According to still another form, layout patterns of variable structure memorizing the object layout and wiring affair are prepared in advance, and a layout plan for a circuit having a hierarchical structure is created through the operation of embedding the circuit to be laid out into a pattern.
摘要:
To provide a perpendicular magnetic recording head which can prevent unintentional recording and erasing from occurring on recording media.In a perpendicular magnetic recording head comprising a pair of side shield layers made of a soft magnetic material on both sides in a track width direction of a magnetic pole part of a main magnetic pole layer, the pair of side shield layers have a front end face exposed at a medium-opposing surface and a side end face extending from one end part of the front end face remote from the magnetic pole part in the track width direction to the deeper side in a height direction, while the front end face and the side end face form an angle of 90° or greater therebetween.
摘要:
There is provided a perpendicular magnetic recording head device which can increase magnetic field gradient to exhibit excellent recording performance while maintaining magnetic field intensity capable of performing information recording well. In a perpendicular magnetic recording head device composed of a main magnetic pole layer and a return path layer which are laminated with a nonmagnetic insulating layer therebetween, the return path layer has a two-layer structure composed of a low saturation magnetic flux density layer (low Bs layer), and a high saturation magnetic flux density layer (high Bs layer) formed an the low Bs layer and made of a material that has a relatively high saturation magnetic flux density. In a front end surface of the return path layer, the low Bs layer and the high Bs layer are exposed.
摘要:
A main magnetic pore layer is formed on an insulating layer flattened into a high-flatness surface, and a yoke layer having a large film thickness is formed under the main magnetic pole layer independently of the main magnetic pole. The main magnetic pole layer has a front end surface formed in a shape with a width size gradually increasing in a direction of track width as the front end surface departs farther away from an auxiliary magnetic pole layer. A perpendicular magnetic recording head can be provided which can suppress the occurrence of fringing in a recording pattern, and can form the main magnetic pole layer with high pattern accuracy, and can satisfactorily introduce a recording magnetic field to a fore end of the main magnetic pole layer.
摘要:
The present invention relates to an active energy ray-curable organopolysiloxane resin composition that comprises an organopolysiloxane resin having an epoxy group and an aromatic hydrocarbon group and a photopolymerization initiator, as well as to a light-transmitting component that comprises cured bodies produced by irradiating the aforementioned organopolysiloxane resin with active-energy rays in the presence of the aforementioned photopolymerization initiator, and to a method for manufacturing the aforementioned light-transmitting component.
摘要:
An electric rotating machine has a rotor having N and S poles and includes a stator with an annular stator core and slots. Multiple-phase stator windings are embedded in the slots, and are formed by winding continuous wires such that straight parts of the stator windings pressed in a flat shape are wound in rings around a grooved cylindrical member. The cylindrical member is inserted into a bore defined by the annular stator core so that the grooves of the cylindrical member are arranged opposite to the slots. The sets of the windings are folded back alternately outside the slots of the stator core and are wound so the sets of the windings are embedded alternately in the direction of the depth of the slots. Leading and trailing ends of the continuous wires are superposed after being wound at least one turn around the circumferentially arranged slots of the stator.
摘要:
An electric rotating machine has a rotor having N and S poles and includes a stator with an annular stator core and slots. Multiple-phase stator windings are embedded in the slots, and are formed by winding continuous wires such that straight parts of the stator windings pressed in a flat shape are wound in rings around a grooved cylindrical member. The cylindrical member is inserted into a bore defined by the annular stator core so that the grooves of the cylindrical member are arranged opposite to the slots. The sets of the windings are folded back alternately outside the slots of the stator core and are wound so the sets of the windings are embedded alternately in the direction of the depth of the slots. Leading and trailing ends of the continuous wires are superposed after being wound at least one turn around the circumferentially arranged slots of the stator.
摘要:
A thin-film magnetic head includes a magnetic pole, a magnetic circuit unit separate from the magnetic pole, and a coil layer. The magnetic pole has a predetermined shape in which the width of the bottom surface of an upper magnetic pole layer is larger than the width of the top surface of a lower magnetic pole layer. The core layer is disposed at the back in the height direction of the magnetic pole.