WorldCat Identities

Cook, Margaret M.

Works: 2 works in 3 publications in 1 language and 4 library holdings
Publication Timeline
Most widely held works by Margaret M Cook
The Standardization and Evolution of the COBOL Language by P.M Hoyt( Book )

2 editions published in 1977 in English and held by 3 WorldCat member libraries worldwide

Government-wide testing of COBOL compilers is the responsibility of the Federal COBOL Compiler Testing Service, an activity of the Department of the Navy's Automatic Data Processing Equipment Selection Office, Software Development Division. In May 1974, the American National Standards Institute approved ANS Programming Language COBOL, X3.23-1974 as the national standard for the COBOL language. Specifications for this revision were drawn from USA Standard COBOL X3.23-1968 and the CODASYL COBOL Journal of Development, dated 31 December 1971. As a result, the Testing Service is engaged in the development of a COBOL Compiler Validation System for this new Standard, incorporating tests for the revised language into the existing 1968 COBOL Compiler Validation System. The first part of the paper focuses on the rationale behind changes from the '68 to '74 COBOL Standard as well as highlighting the new features in the language. The second part of the paper discusses evolution within the COBOL language itself with respect to the CODASYL COBOL Journal of Development and several other CODASYL language activities. (Author)
Microstructures of powder and conventionally processed 7075 aluminum alloy by L. A Jacobson( Book )

1 edition published in 1971 in English and held by 1 WorldCat member library worldwide

Aluminum alloy powder of the 7075 composition was consolidated by warm upset and extrusion. Commercial cast and wrought materials was also extruded to serve as a control. Results of varying the length of time at solution treatment temperature indicate that the powder materials is far less resistant to recrystallization than the conventional material. Optical and transmission electron microscopy revealed that after identical post-extrusion solution treatments the substructure formed during extrusion throughout the commercial material was stable while the powder material retained substructure only near the edges of the rectangular extrusion and had undergone complete recrystallization toward the center. These results are explained in terms of the presence of a certain particulate constituent and the amount of warm working, both of which appear to influence substructure formation and stability. The presence or absence of the observed subgrain structure was shown to influence tensile properties either directly or through its effect on aging response. The results obtained by varying quench rates and employing cold work after solution treatment are compared for the powder and the conventional material and shed light on the various effects of chromium in the 7075 alloy
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