منابع مشابه
Cryogenic Model Materials
An overview and status of current activities seeking alternatives to 200 grade 18Ni Steel CVM alloy for cryogenic wind tunnel models is presented. Specific improvements in material selection have been researched including availability, strength, fracture toughness and potential for use in transonic wind tunnel testing. Potential benefits from utilizing damage tolerant life-prediction methods, r...
متن کاملA Cryogenic Data
A computer storage system which is addressed by content rather than location is described. The design has been verified by constructing and successfully operating a three-word module consisti~g of 81 crossed-film cryotrons on a 6-inch by 3-inch substrate.
متن کاملCryogenic optical refrigeration
We review the field of laser cooling of solids, focusing our attention on the recent advances in cryogenic cooling of an ytterbium-doped fluoride crystal (Yb:YLiF4). Recently, bulk cooling in this material to 155 K has been observed upon excitation near the lowest-energy (E4–E5) crystal-field resonance of Yb3+. Furthermore, local cooling in the same material to a minimum achievable temperature ...
متن کاملCryogenic Cooling System
Printed & published by Dr Mohinder Singh, Director, DESIDOC, on behalf of DRDO. RNI No. 55787/93 Readers of Technology Focus are invited to send their communications to the Editor, Technology Focus DESIDOC, Metcalfe House, Delhi 110 054. India Telephone: 011-23819975; Fax: 011-23819151; Drona-mail: [email protected] E-mail: [email protected], [email protected] Internet: http://www....
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ژورنال
عنوان ژورنال: TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan)
سال: 1973
ISSN: 0389-2441,1880-0408
DOI: 10.2221/jcsj.8.35