Výsledky vyhledávání

HighT c composite silver/oxide superconductors

Autor: Maw-Kuen Wu, P. N. Peters, R. C. Sisk, C. Y. Huang, Peter A. Curreri

Publikováno v: Metallurgical Transactions A. 21:257-260

Factors involved in the strong flux pinning effect of high-Tc YBa2Cu3O7/AgO (Y-123/AgO) composite and other REE-123/AgO composites were investigated. Samples of superconducting REE-123 and REE-123/AgO (where REE was Nd, Sm, Eu, Gd, Dy, Ho, Er, or Y)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9d98ed64448c85969f522bf34e248323
https://doi.org/10.1007/bf02656444

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Scanning instrumentation for measuring magnetic field trapping in high Tc superconductors

Autor: A. J. Helton, R. C. Sisk

Publikováno v: Review of Scientific Instruments. 64:2601-2603

Computerized scanning instrumentation measures and displays trapped magnetic fields across the surface of high Tc superconductors at 77 K. Data are acquired in the form of a raster scan image utilizing stepping motor stages for positioning and a cryo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e04c7a7023aea868bedc277bc4a55d6d
https://doi.org/10.1063/1.1143875

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Stationary crystal diffraction with a monochromatic convergent X-ray source and application for macromolecular crystal data collection

Autor: Edward H. Snell, S.M. Owens, Joseph X. Ho, J.R. Ruble, Daniel C. Carter, Walter M. Gibson, R. C. Sisk

Publikováno v: Acta crystallographica. Section D, Biological crystallography. 54(Pt 2)

A diffraction geometry utilizing convergent X-rays from a polycapillary optic incident on a stationary crystal is described. A mathematical simulation of the resulting diffraction pattern (in terms of spot shape, position and intensity) is presented

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d5342c572ebea9e8beb4e67aee3ba2a3
https://pubmed.ncbi.nlm.nih.gov/9761885

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Polycapillary x-ray optics for macromolecular crystallography

Autor: Igor Yu. Ponomarev, J.B. Ullrich, S.M. Owens, Daniel C. Carter, R. C. Sisk, Walter M. Gibson, Joseph X. Ho

Publikováno v: SPIE Proceedings.

Polycapillary x-ray optics have found potential application in many different fields, including antiscatter and magnification in mammography, radiography, x-ray fluorescence, x-ray lithography, and x-ray diffraction techniques. In x-ray diffraction,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fd3660b06e8d09934fea195b3fc710ca
https://doi.org/10.1117/12.245141

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Polycapillary X-ray optics for macromolecular crystallography

Autor: Daniel C. Carter, S.M. Owens, W. M. Gibson, I. Yu. Ponomarev, R. C. Sisk, Qi-Fan Xiao, J.B. Ullrich

Publikováno v: Acta Crystallographica Section A Foundations of Crystallography. 52:C494-C494

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dfbdd2510457f89e431468c4a4220502
https://doi.org/10.1107/s0108767396079780

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Convergent-beam macromolecular crystallography using polycapillary X-ray optics

Autor: I. Yu. Ponomarev, W. M. Gibson, R. C. Sisk, S.M. Owens, Qi-Fan Xiao, Daniel C. Carter, J.B. Ullrich

Publikováno v: Acta Crystallographica Section A Foundations of Crystallography. 52:C495-C495

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d0b3810dfb3da5d33d51d213891aa555
https://doi.org/10.1107/s0108767396079755

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Velocity distributions of oxygen atoms incident on spacecraft surfaces

Autor: Palmer N. Peters, John C. Gregory, R. C. Sisk

Publikováno v: Journal of Spacecraft and Rockets. 25:53-58

The angular distributions of oxygen atoms incident on surfaces in low earth orbit have been calculated for a number of ambient gas temperatures. Atom fluxes to surfaces were modeled by integrals over all permitted angles of incidence. Angles of incid

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d29d58e4ae26e110380198325efa6c7b
https://doi.org/10.2514/3.25987

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Observation of enhanced properties in samples of silver oxide doped YBa2Cu3Ox

Autor: P. N. Peters, R. C. Sisk, Maw-Kuen Wu, E. W. Urban, C. Y. Huang

Publikováno v: Applied Physics Letters. 52:2066-2067

Samples of YBa2Cu3O(x) doped with silver oxide (Tc is about 93 K) have exhibited attractive forces in gradient magnetic fields, both normal and tangential to the surfaces, which are more than twice the sample weight. This allows sample suspension bel

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ccec8313a2c6dea84ac3b1d8c155e973
https://doi.org/10.1063/1.99775

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