摘要:
A driving apparatus for an electromagnetic valve which supplies fuel to an engine comprises a conduction control circuit and a current-limit-value setting circuit. The conduction control circuit turns on and off an FET so that a conduction current flowing through a coil of the electromagnetic valve has a magnitude equal to a predetermined current limit value while a microcomputer is outputting a driving signal to the conduction control circuit. The predetermined current limit value used in the conduction control circuit is set at a first current limit value during a predetermined period starting at a point of time the microcomputer outputs the driving signal. When the predetermined period has lapsed, the predetermined current limit value is switched from the first current limit value to a second current limit value which is smaller than the first current limit value. In addition, when the microcomputer detects a start state of the engine or a low level state of a battery voltage, the second current limit value is raised to the first current limit value to thereby improve the starting characteristics of the engine.
摘要:
A method for automatically generating a mesh (e.g., a quadrilateral mesh, a hexahedral mesh, and the like) includes inputting a geometric model to be meshed, generating a plurality of bubbles within a region of the geometric model, determining a stable allocation of the bubbles by moving the bubbles using a force defined by a potential field provided for the bubbles and controlling a number of the bubbles, and generating the mesh by connecting centers of adjacent bubbles.
摘要:
A mask is irradiated by an optical illumination system. An electron beam passing through the pattern on the mask is formed into an image on a wafer by two lenses, and a pattern on a mask is projected onto the wafer in reduced manner. The semi-angles and ratio of ampere-turn values of the deflecting coils of at least one of deflectors constituting the deflector are then set in such a manner that a 3&thgr; component, 5&thgr; component and 7&thgr; component of a magnetic field generated by the deflector are substantially zero. As a result, four-fold aberrations generated at the deflector can be reduced.
摘要:
One end of a first transmission line is connected to the collector of an HBT with the base connected to an output terminal of an input-side matching circuit and with the emitter grounded, and one end of an end-open stub for blocking the passage of the doubled wave is connected to the other end of the first transmission line. One end of a second transmission line is connected to the other end of the first transmission line, and one end of an end-open stub for blocking the passage of the fundamental wave is connected to the other end of the second transmission line. An input terminal of an output-side matching circuit is connected to the other end of the second transmission line. The fundamental wave is reflected toward the HBT at the connecting point of the end-open stub for blocking the passage of the fundamental wave, while the doubled wave is reflected toward the HBT at the connecting point of the end-open stub for blocking the passage of the doubled wave, by which only harmonics of quadrupled wave or higher-ordered waves are outputted via the output-side matching circuit. Thus, the frequency multiplier is capable of taking out fourth- or higher-ordered harmonics efficiently with a simple constitution using one high frequency transistor, and can be reduced in size and stabilized in operation.
摘要:
A quadrilateral or a hexahedron is used for a virtual object. If, for example, a quadrilateral mesh is composed of perfect squares and a voronoi diagram is dual to them, it is considered that the voronoi diagram comprises the perfect squares whose centers are connected to be a quadrilateral mesh. Accordingly, the quadrilateral mesh is generated by filling the object to be meshed with quadrilateral virtual objects corresponding to the voronoi diagram and connecting their centers.
摘要:
A color coating composition having excellent appearance, acid resistance and mar resistance is provided. Such excellent properties are achieved by the combination of an aminoplast-curing coating system with a curable coating system comprising a particular half esterified acid anhydrides, hydroxyl groups and epoxy groups.
摘要:
A clip includes a resilient tongue at one end thereof, a resilient engaging portion at another end thereof, an engaging portion formed on the resilient tongue for engagement with a support member of an attachment article, and a stop member provided on the support member to suppress flexing by the resilient engaging portion when the engaging portion of the resilient tongue is in engagement with the support member. The engaging portion is in contact with the stop member when the engaging portion of the resilient tongue is in engagement with the support member. Flexing of the resilient engaging portion is enabled by releasing the engagement of the engaging portion of the resilient tongue and moving the clip.
摘要:
A mounting structure for a vanity mirror includes two screw penetration holes formed in a lamp section of the vanity mirror; positive and negative contacts for supplying a light source in the lamp section with electricity, the positive and negative contacts being formed with through holes and being disposed such that each of the through holes formed in the positive and negative contacts is aligned with a corresponding one of the screw penetration holes of the lamp section; two contacts provided on a sun visor and connected to a power source, the sun visor-side contacts being formed with through holes and being positioned such that each of the through holes of the sun visor-side contacts is aligned with a corresponding one of the screw holes in bosses of the sun visor which are located at positions corresponding to the screw penetration holes of the lamp section; and two mounting screws made of a conductive material which are passed through the through holes of the contacts of the lamp section, the screw penetration holes of the vanity mirror and the through holes of the contacts on the sun visor, in this order, and are screwed to the screw holes in the sun visor, whereby the contacts of the lamp section and the contacts on the sun visors are electrically connected with each other through the mounting screws. Accordingly, the structure for supplying electricity to the lamp section of the vanity mirror is simplified.
摘要:
A connecting assembly is disposed between a concrete column and at least one beam having upper and lower flanges. The connecting assembly has upper and lower connecting members and a tubular member disposed between the connecting members. The upper and lower connecting members are mounted on the upper and lower flanges of the beam, respectively. Each of the connecting members has at least one through-hole in which concrete of the column is filled, so that the column is partly encased by the tubular member. Accordingly, the column is connected to the beam.
摘要:
A connecting assembly is disposed between a concrete column and at least one beam having upper and lower flanges. The connecting assembly has upper and lower first connecting members each having at least one through-hole through which at least one portion of the column is disposed so that both of the first connecting members are mounted on the column. Upper and lower second connecting members are mounted on the upper and lower flange portions of the beam, respectively. The upper and lower second connecting members are affixed respectively to the upper and lower first connecting members by screw engagements, whereby the column is connected to the beam.