In order to provide an approximate solution having high accuracy to a given partial differential equation made up of one of a Poisson equation, diffusion equation or other partial differential equation similar in form to a Poisson or diffusion equation, the given equation being applied on a plurality of grid points dispersed at irregular intervals, a program is generated in which not only the dependent variable of the original equation is used, but in addition first order derivatives thereof als...

A support system for a laser beam machine is provided which includes an inferred value production unit which produces an inferred value for each of a plurality of processing condition parameters indicative of conditions under which laser processing is performed, by use of an artificial intelligence function, and a display unit which displays the inferred value produced by the inferred value production unit. The support system further includes an input unit which allows an operator to enter a plu...

A shaft coupling includes an annular plate having a proper axial flexibility. The annular plate is formed with mounting holes. A first group of coupled portions are fixedly connected to an input shaft, whereas a second group of coupled portions are fixedly connected to an output shaft. The first and second groups of coupled portions are coupled with each other through the annular plate placed therebetween, so that the first and second groups of coupled portions circumferentially alternate with e...

A device for recognizing and measuring the lengths of glitches by sampling the input signal at fractions of a sampling clock, which clock has a period shorter than the period of pulses of the correct signal but longer than the glitch widths. The corrected input signal can be displayed, along with the glitch information.

An aqueous solution of a reducing agent is applied to a chromate coated metal surface to reduce the extent to which the chromate coating undergoes dissolution during a subsequent cleaning process.

A method of and apparatus for recognizing the figure pattern of parts used in factories is disclosed in which a pattern input device, such as an ITV camera creates an electrical image of the part which is A/D converted and then stored in binary coded form. The binary coded data is then processed and compared to known stored values, using one or more characteristics of the figure pattern, to determine the identity of the viewed part.

A high-pressure discharge lamp includes an external tube, and two luminescent tubes which extend in the tube axis direction in such a manner that one tube twists with respect to the other or vice versa and which are close to each other at least at one end of each tube and are more separate in the middle of the tubes than the ends close to each other.

An epoxy resin having a propenyl group conjugated with an aromatic ring is heat resistant and is easily molded and cured into products having high strength and Tg. It is thus useful as a resin component or modifier.

An epoxy resin composition comprising (A) a naphthalene ring-containing epoxy resin, (B) a specific phenolic resin preferably in admixture with a conventional phenolic resin, especially naphthalene ring-containing phenolic resin, and (C) an inorganic filler shows good flow and cures to products having low modulus of elasticity, a low coefficient of expansion, high Tg irrespective of low stresses, and minimized water absorption. Then semiconductor devices encapsulated with the present composition...

An image forming apparatus has a photoconductive element, a developing sleeve, a photosensor and a control device for controlling the dynamic range of an image. A background output VSG is produced from the photosensor when the photoconductive element is rotating and the developing sleeve is rotating and a background output VSG+ is produced from the photosensor when the photoconductive element is rotating and the developing sleeve is not rotating. The control device controls a developing bias, a ...