Abstract: A processor of an information processing apparatus displays a first component in a state in which a first terminal of the first component is located on a second terminal of a second component. The processor displays, along a designated route, a first wiring pattern for connecting the second terminal to the first terminal and moves the first component to a first distal end of the first wiring pattern. The processor determines whether a pattern area of the first wiring pattern or a component area of the first component which is placed at a second distal end of the designated route overlaps any of first areas of already placed components or second areas of already wired wiring patterns. The processor finalizes placement of the first component and the first wiring pattern upon determining that the pattern area and the component area overlap none of the first areas and the second areas.

Abstract: In the present case, when one component of a plurality of components is arranged, an interference state between a first check region set to the one component and a second check region set to an arranged component near the one component. If the checked interference state satisfies predetermined conditions, an arrangement position of the one component is determined by permitting the interference state. Then, the first check region and the second check region are combined and the combined check region is used as one check region set to the one component and the arranged component. Accordingly, the arrangement position of a component to be arranged can be determined by considering arrangements of a plurality of components therearound on a board.

Abstract: Logical design of a circuit or a printed board including a number of components is carried out with improved flexibility in determination of the positions and the number of logical terminals of a symbol in order to easily create a logical circuit diagram high invisibility due to absence of deficiency such as interconnections crossing. The design aid apparatus includes a terminal information retaining section for retaining terminal information pieces; a tentative symbol determining section for determining a tentative symbol, for each component, having tentative logical terminals; a tentative symbol arranging section for arranging the determined tentative symbol; and a symbol determining section for determining the tentative symbol to be the symbol representing each component by, for the component, allocating each retained terminal information piece to one of the tentative logical terminals of the arranged tentative symbol.

Abstract: Logical design of a circuit or a printed board including a number of components is carried out with improved flexibility in determination of the positions and the number of logical terminals of a symbol in order to easily create a logical circuit diagram high invisibility due to absence of deficiency such as interconnections crossing. The design aid apparatus includes a terminal information retaining section for retaining terminal information pieces; a tentative symbol determining section for determining a tentative symbol, for each component, having tentative logical terminals; a tentative symbol arranging section for arranging the determined tentative symbol; and a symbol determining section for determining the tentative symbol to be the symbol representing each component by, for the component, allocating each retained terminal information piece to one of the tentative logical terminals of the arranged tentative symbol.

Abstract: To improve high-temperature strength, as well as increased resistance to wear due to sparking, a Ni-based alloy sparking plug electrode material for use in an internal combustion engine is provided. Such a Ni-based alloy sparking plug electrode material contain, by weight, from 3.1 to 4.3 of Al, from 0.5 to 1.5% of Si, from 0.45 to 0.65% of Mn, from 0.002 to 0.01% of C, from 0.005 to 0.05% of at least one of Mg and Ca, and, as necessitated, from to 2% of Cr, with the balance substantially Ni and inevitable impurities.

Abstract: An Ni base alloy for use in spark plug electrodes for internal combustion engines which consists essentially of, on a weight percent basis,0.1 to 1.5% Si,0.1 to 0.65% Mn,3.1 to 5% Al,0 to 2% Cr,0 to 0.5% of one or more elements selected from the group consisting of Y and rare earth elements,0 to 5% Co,0 to 0.5% of Hf and/or Re, andthe remainder Ni and incidental impurities.

Abstract: An Ni base alloy for use in spark plug electrodes for internal combustion engines which consists essentially by weight of:0.5 through 1.5% Si;0.7 through 2.8% Mn;0.25 through 4.5% Al; andoptionally 0.005-1% of one or more elements selected from the group consisting of Y and rare earth elements; and the remainder Ni and incidental impurities.