70 research outputs found
Fusion-Fission Hybrid Reactors
to the design of hybrid reactors and to inform the new generation of hybrid reactor researchers of the hybrid reactor data base developed in the seventies and early eighties
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Influence of Radiation Upon Corrosion and Surface Reactions of Metals and Alloys
A discussion of various factors in corrosion of irradiated metallic surfaces is presented. The usual mechanisms of metallic corrosion, such as direct chemi-cal reactions, direct solution (mass transfer), and electrochemical mechanisms, are considered in relation to the effects of light and x rays. In addition, corrosion of reactor materials in aqueous materials is considered. The effect of irradiation on gas -solid reactions is discussed as well as proton irradiation effects on surface reactions. Several tables and graphs are included. (J.R.D.
Comparison of BEO Versus Graphite as a Moderator for MGCR
The comparison is made on the basis of nuclear requirements, properties, cost, and performance under irradiation. Results of published work were reviewed on the effects of irradiation on beryllium oxide and beryllium oxide - uranium dioxide dispersions. A research proposal for a Maritime Gas-cooled Reaotor Moderator is included. (J.R.D.
The stability and properties of alloy steels at elevated temperatures : a literature survey /
"Project No.39, U.S. Atomic Energy Commission, Contract No. AT(04-3)-314.""November 21, 1960."Includes bibliographical references (pages 76-78).U.S. Atomic Energy Commission Contract ;Mode of access: Internet
Genetics of protein I of Neisseria gonorrhoeae: construction of hybrid porins.
Protein I (PI), the major outer membrane protein of Neisseria gonorrhoeae, is a porin and occurs in two major immunochemical classes, A and B. By using shuttle mutagenesis to insert a selectable marker close to the PI structural gene, evidence was obtained from transformation experiments to demonstrate that the PI structural gene is equivalent to the defined locus nmp and that the genes for PI class A and PI class B are alleles of the same locus. The PI class B gene of strain MS11 was cloned and sequenced, and comparison of this sequence with the gene sequence of PI class A of FA19 revealed a number of regions of significant divergence. By selection for the closely linked marker in transformations between the two strains, a series of strains with a hybrid PI was obtained. Analysis of these strains with monoclonal antibodies and oligonucleotides specific to PI class A or PI class B elucidated the nature and location of some of the surface-exposed epitopes, a thorough characterization of which is a prerequisite for understanding the role of PI in gonococcal pathogenesis and its possible use as a component of a vaccine
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