Zobrazeno 1 - 10
of 10
pro vyhledávání: '"S. P. Ashworth"'
Publikováno v:
Atmospheric Chemistry and Physics, Vol 4, Iss 5, Pp 1443-1450 (2004)
Following recent observations of molecular iodine (I2) in the coastal marine boundary layer (MBL) (Saiz-Lopez and Plane, 2004), it has become important to determine the absolute absorption cross-section of I2 at reasonably high resolution, and also t
Externí odkaz:
https://doaj.org/article/7051b8e1c7924355ab4270be8f0f46a0
Publikováno v:
Journal of Applied Physics. 88:2718-2723
We report on measurements of the ac losses of YBa2Cu3O7−x conductors on technical substrates. The samples are taken from conductors 1 m long produced with an ion beam assisted deposition step in the manufacturing process yielding 1 cm wide conducto
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ff1f97d023735dbbb95b8f8fe3ff2961
https://doi.org/10.1063/1.1288505
https://doi.org/10.1063/1.1288505
Autor:
S. P. Ashworth, David A. Cardwell, A.M. Campbell, Charles Dewhurst, Anya R. Jones, A.P. Baker
Publikováno v:
Applied Superconductivity. 3:47-53
An understanding of the mechanisms of current flow in melt-processed HTSC thick films is obviously of critical importance if these films are to find commercial applications. For this reason studies have been carried out on thick films of BSCCO materi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57741a78aeb31aa9100fad13d3ec6a4b
https://doi.org/10.1016/0964-1807(95)00031-y
https://doi.org/10.1016/0964-1807(95)00031-y
Autor:
N.McN. Alford, A.M. Campbell, J.S. Abell, Anya R. Jones, F. Wellhofer, S. P. Ashworth, Tim W. Button, N. J. C. Ingle, David A. Cardwell
Publikováno v:
Journal of Applied Physics. 76:1720-1725
Transport critical current measurements have been carried out on melt‐processed thick films of YBa2Cu3O7−δ on yttria‐stabilized zirconia in fields of up to 8 T both within grains and across grain boundaries. These measurements yield Jc values
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::42304b19d0d9139541e75ba89c9fd3c7
https://doi.org/10.1063/1.357687
https://doi.org/10.1063/1.357687
Publikováno v:
Journal of Fluids Engineering. 130
A simple model is developed here to predict the pressure drop and discharge coefficient for incompressible flow through orifices with length-to-diameter ratio greater than zero (orifice tubes) over wide ranges of Reynolds number. The pressure drop fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c3109375f899ffa024f0dc91a27fb18e
https://doi.org/10.1115/1.2907408
https://doi.org/10.1115/1.2907408
Autor:
T. A. Jankowski, E. N. Schmierer, F. C. Prenger, S. P. Ashworth, J. G. Weisend, John Barclay, Susan Breon, Jonathan Demko, Michael DiPirro, J. Patrick Kelley, Peter Kittel, Arkadiy Klebaner, Al Zeller, Mark Zagarola, Steven Van Sciver, Andrew Rowe, John Pfotenhauer, Tom Peterson, Jennifer Lock
Publikováno v:
AIP Conference Proceedings.
The flow of saturated liquid nitrogen through micro-scale orifices has been characterized experimentally. Measurements of pressure drop and flow rate were made with liquid nitrogen flowing through orifices ranging in diameter from 50 micron to 370 mi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::86203e6418cf9433898afbf4a8e9e163
https://doi.org/10.1063/1.2908490
https://doi.org/10.1063/1.2908490
Publikováno v:
Advances in Superconductivity XII ISBN: 9784431702702
Since Bi2Sr2Ca2Cu3O10/Ag, [Bi2223/Ag], tapes have geometrically large aspect ratios, and have highly anisotropic properties along its crystallographic directions, it is not clear to what extent the ac loss theories, which are based on the critical-st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::576a9adf804060b945803111ec64096f
https://doi.org/10.1007/978-4-431-66877-0_213
https://doi.org/10.1007/978-4-431-66877-0_213
Autor:
S. P. Ashworth
Publikováno v:
Advances in Superconductivity VII ISBN: 9784431685371
The aim of this paper is to describe the scope and structure of industrial HTSC materials and engineering research in Europe. This is taken to cover the development of bulk and tape materials and R&D into the possible applications of these materials,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::387a4271fff0d100ca1eb4f18accd156
https://doi.org/10.1007/978-4-431-68535-7_127
https://doi.org/10.1007/978-4-431-68535-7_127
Autor:
A. F. G. Wyatt, S. P. Ashworth
Publikováno v:
Japanese Journal of Applied Physics. 26:27
Phonons and rotons can be injected into liquid 4He by a thin film heater. It is shown that as the heater power is increased the phonon propagation goes from ballistic to quasi-diffusive. The evidence shows that the scattering region is near the heate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ad3348337aa993f6664f9095d48a703f
https://doi.org/10.7567/jjaps.26s3.27
https://doi.org/10.7567/jjaps.26s3.27
Autor:
S. P. Ashworth, A. F. G. Wyatt
Publikováno v:
Japanese Journal of Applied Physics. 26:25
When two high intensity pulses of excitations are injected into liquid 4He a strong non-linear interaction occurs which produces a large signal. We propose that rotons from the first pulse form relatively long lived surface rotons on the bolometer an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b08fb727eaab877bf612f1c8f8afea56
https://doi.org/10.7567/jjaps.26s3.25
https://doi.org/10.7567/jjaps.26s3.25