Zobrazeno 1 - 10
of 18
pro vyhledávání: '"J. E. Spragg"'
Autor:
B. Sanderson, Gilbert G. Fritz, Raymond G. Cruddace, J. E. Spragg, Herbert Gursky, Martin A. Barstow, Michael P. Kowalski, J. L. Culhane, Joseph F. Kordas, J. A. Tandy, William H. Goldstein, Charles M. Brown, Nigel Bannister, George W. Fraser, Troy W. Barbee, Jonathan S. Lapington, Daryl J. Yentis
Publikováno v:
The Astrophysical Journal. 565:L47-L50
We report a high-resolution (R=3000-4000) spectroscopic observation of the DA white dwarf G191-B2B in the extreme ultraviolet band 220-245 A. A low- density ionised He component is clearly present along the line-of-sight, which if completely interste
Publikováno v:
Integrated Manufacturing Systems. 10:322-328
The paper discusses the design, implementation and validation of FLEAS, a flowline environment for automated supervision of clothing manufacturing systems. The paper argues for a mixed initiative approach to system control which incorporates both a s
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 416:293-300
The potential for spacecraft contaminants to outgas in orbit and condense onto the cold surfaces of X-ray CCDs has been appreciated for some time. We investigate the effect of ice build-up on the low-energy response of a soft X-ray sensitive CCD. We
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 332:570-574
A CsI coated microchannel plate (MCP) detector was exposed, in vacuo, to increasing partial pressures of a) water vapour and b) the organic plasticiser
Autor:
P. Guttridge, Darach Watson, Trevor J. Ponman, B. J. Kent, Mark R. Sims, Richard Willingale, John P. Pye, Bruce Swinyard, C. V. Goodall, A. W. Harris, S. D. Sidher, Alan A. Wells, E. R. Breeveld, G. K. Rochester, Richard Lieu, R. D. Bentley, D. H. Reading, A. J. McCalden, M. J. Ricketts, A. G. Richards, M. Deeley, J. E. Spragg, J. A. Gourlay, R. J. Vallance, Richard E. Cole, S. E. Sembay, J. S. Wright, G. S. Pankiewicz, Anne E. Sansom, M. Denby, G. M. Courtier, H. E. Huckle, T. J. Sumner, A. F. Abbey, Martin A. Barstow, Clive G. Page, M. G. Watson, A. Bewick, Ken Pounds
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 253:364-368
Following a successful launch on 1990 June 1, the ROSAT spacecraft and its payload, consisting of an X-ray and an EUV telescope, underwent two months of in-orbit calibration and detailed performance checks. A preliminary observation of a small sectio
Autor:
J. C. Underwood, M.F. Neal, J. S. Lingard, S. C. Peskett, Lutz Richter, H. Hamacher, R. Turner, S. Whitehead, Alan A. Wells, B. Hancock, Ian Wright, T. C. Ng, H. U. Keller, N.M. Sale, Nigel P. Meredith, Colin T. Pillinger, Nicolas Thomas, A. Senior, George W. Fraser, J. Dowson, C. de la Nougerede, Göstar Klingelhöfer, M. Newns, J. E. Spragg, Mark R. Sims, André Brack, M. Humphries, J. Hobbs, Alan Johnstone
Publikováno v:
Advances in space research : the official journal of the Committee on Space Research (COSPAR). 23(11)
The aim of the proposed Beagle 2 small lander for ESA's 2003 Mars Express mission is to search for organic material on and below the surface of Mars and to study the inorganic chemistry and mineralogy of the landing site. The lander will have a total
Autor:
B. Sanderson, Martin A. Barstow, George W. Fraser, Jonathan S. Lapington, Nigel Bannister, J. E. Spragg, J. A. Tandy, James F. Pearson
Publikováno v:
X-Ray and Gamma-Ray Instrumentation for Astronomy XI.
We describe the development of an imaging microchannel plate detector for a new class of high resolution EUV spectrometer. The detector incorporates a front MCP coated with a CsI photocathode to enhance quantum efficiency, while the rear MCP, supplie
Publikováno v:
Recent Advances in AI Planning ISBN: 9783540639121
ECP
ECP
The problem of scheduling manufacturing systems where the capacity of a production resource is subject to stochastic change, is the subject of this paper. Resources which are dependent upon labour intensive processes provide typical examples. In the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::51216c89030d1585191ca2509970dc96
https://e-space.mmu.ac.uk/597122/
https://e-space.mmu.ac.uk/597122/
Autor:
C. V. Goodall, Claude Pigot, E. Pferrerman, J. E. Spragg, C. Moriggio, Monique Arnaud, I. Butler, Gabriele E. Villa, D. Schmitt, M. Balasini, S. Sciortino, Giovanni F. Bignami, C. Musso, P. Tua, Lothar Strueder, G. Cafagna, Norbert Meidinger, Christophe Cara, John B. Stephen, M. Trifoglio, A. F. Abbey, Alain Labeque, J. Dowson, Guido Di Cocco, S. Whitehead, Martin J. L. Turner, Claus Reppin, Mariasole Conte, Nicola La Palombara, Richard E. Cole, Salvatore Serio, H. Hippman, Michel Boer, Andrew D. Holland, E. Poindron, C. Chabaud, Eckhard Kendziorra, Heinrich W. Braeuninger, L. Chiappetti, John P. Pye, Pierre Dhez, Philippe Ferrando, R. Duc, Giovanni Peres
Publikováno v:
SPIE Proceedings.
The European photon imaging camera (EPIC) is one of the two main instruments onboard the ESA X-Ray Cornerstone Mission XMM. It is devoted to performing imaging and spectroscopy of the x-ray sky in the domain 0.1 10 keV with a peak sensitivity in 105
Publikováno v:
Instrumentation in Astronomy VIII.
Astronomers responsible for the planning of astronomical observations are showing an interest in scheduling technology. This interest is related to the increasing cost of acquiring high-quality astronomical data, in terms of the technology of contemp