“Vickers hardness” is a hardness measured by applying a static load to a quadrilateral diamond indenter having an angle of 136° between the opposite faces. Vickers hardness Hv is obtained from equation: Hv=1.854P/d2(kg/mm2)≈18.1692P/d2(MPa) where P is a load (kg) applied, and d ...
5. A lens-fitted photo film unit as defined in claim 4, wherein said quadrilateral tube is fixedly positioned on said front cover by use of one of forced insertion, caulking, welding and insert molding. 6. A lens-fitted photo film unit as defined in claim 4, wherein said quadrilateral...
The invention relates to a filling method for concave quadrilateral FPGA (Field Programmable Gate Array) hardware for a pattern generator of a direct writing photo-etching machine. Compared with the prior art, the filling method has the advantage that the defect of being unable to fill a concave...
the gradation heat energy being determined by density at which each color should be developed. This combination of the bias heating and gradation heating records a dot by coloring each one of pixels, which are virtually defined on a surface of the recording material as quadrilateral cells arranged...
A lens-fitted photo film unit incorporates a mechanism for taking an exposure, and is pre-loaded with unexposed photo film. A telephoto selectable type indicia is imprinted previously on a first edge of the photo film outside imaging frames in an optical manner. An indicia recorder imprints a...
A lens-fitted photo film unit includes a main body. A cassette holder chamber in the main body contains a photo film cassette. A roll holder chamber in the main body contains a roll of photo film draw
The methodology of residual stresses quantification using the hole-drilling strain gauge method involves several steps: smoothing of the specimen surface using, e.g., chemical etching (manufacturing technologies such as abrading or grinding have to be avoided); attaching a strain gauge rosette with sp...