Zobrazeno 1 - 10
of 41
pro vyhledávání: '"J R Stephens"'
Autor:
J L C Wong, Robert Broomhead, Stephen J. Brett, Richard Stümpfle, Sanooj Soni, Parind Patel, Umeer Waheed, J R Stephens
Publikováno v:
British Journal of Surgery
The British Journal of Surgery
The British Journal of Surgery
A high incidence of pancreatitis in COVID-19 has been reported. Although a high proportion of critically unwell patients with COVID-19 have raised serum amylase levels, this does not necessarily reflect acute pancreatitis or a clinically important pa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4d7951c2eea2e04e09cdcfb9a5543d83
http://hdl.handle.net/10044/1/87524
http://hdl.handle.net/10044/1/87524
Publikováno v:
Il Nuovo Cimento C. 15:1091-1096
The mass absorption coefficients of some glassy and crystalline silicates of astrophysical relevance have been measured. We produced and characterized also synthetic silicates of olivine type since this material is considered one of the most likely c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab2d5b6edb7de264cf2304b3167d0a92
https://doi.org/10.1007/bf02506700
https://doi.org/10.1007/bf02506700
Autor:
J. R. Stephens
Publikováno v:
International Journal of Energetic Materials and Chemical Propulsion. 5:81-87
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::72254736516bf6aa7a382ab4b66ee537
https://doi.org/10.1615/intjenergeticmaterialschemprop.v5.i1-6.110
https://doi.org/10.1615/intjenergeticmaterialschemprop.v5.i1-6.110
Autor:
Sarah W. Allendorf, Sam Williams, Christopher R. Shaddix, Albert Moeller, William Bellow, Walter Gray, J. R. Stephens, Bruce E. Watkins, Joel Lipkin, Raymond Peabody, Solim S. W. Kwak, John Carson, C. A. Velsko
Publikováno v:
International Journal of Energetic Materials and Chemical Propulsion. 5:40-49
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::821f34f87201d3d2821df8438d7f663d
https://doi.org/10.1615/intjenergeticmaterialschemprop.v5.i1-6.60
https://doi.org/10.1615/intjenergeticmaterialschemprop.v5.i1-6.60
Autor:
Sergio Fonti, Luigi Colangeli, Armando Blanco, E. Bussoletti, J. R. Stephens, Vito Mennella, Vincenzo Orofino
Publikováno v:
Planetary and Space Science. 43:1241-1246
Synthetic amorphous silicate dust samples were produced with various metal to silicon and iron to magnesium ratios to serve as analogues to cosmic dust. The IR spectra of the dusts were measured in the 10 and 20 μ m bands to determine the effect of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d564bdaff58668ae4c62487ff29736ce
https://doi.org/10.1016/0032-0633(95)00005-p
https://doi.org/10.1016/0032-0633(95)00005-p
Autor:
J. R. Stephens, E. Bussoletti, F. Furgeson, D. Mancini, Joseph A. Nuth, L. Colangeli, L. U. Lilleleht, Vito Mennella, C. Mirra, A. A. Vittone
Publikováno v:
Il Nuovo Cimento C. 15:1071-1076
The first results of the STARDUST project, aimed at producing and analyzing cosmic-dust analog materials in microgravity conditions, are summarized. The discussion covers the purpose of the investigation, cosmic-dust formation and properties, previou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::10db3ee90c4f8530d0038a2dd68494b6
https://doi.org/10.1007/bf02506697
https://doi.org/10.1007/bf02506697
Autor:
Bo Å. S. Gustafson, J. R. Stephens
Publikováno v:
Icarus. 94:209-217
This article presents laboratory measurements of bidirectional reflectances from particle/ice mixtures representing “dirty” ice surfaces on atmosphereless Solar System bodies. The reflectance was monitored as ice sublimed under vacuum from the mi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::057efe45b80de9e8777ea57492691518
https://doi.org/10.1016/0019-1035(91)90151-i
https://doi.org/10.1016/0019-1035(91)90151-i
Publikováno v:
International Astronomical Union Colloquium. 126:49-52
We report preliminary analytical electron microscope (AEM) analysis of nearly 300 stratospheric particles collected using balloon-borne collectors at 34-36 km altitude. The particles are predominantly silica, plagioclase feldspar, Mg, Fe-silicates an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::de2791c48fc42480b42e37c77f0fd2a9
https://doi.org/10.1017/s025292110006646x
https://doi.org/10.1017/s025292110006646x
Publikováno v:
International Astronomical Union Colloquium. 126:125-128
Among the various silicates proposed as components of cosmic dust grains, olivine is considered one of the most likely materials. In this work we present the infrared spectra of three different types of olivine grains: crystalline, amorphous and synt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::813e2530be047593fa7b7b77bdfe6877
https://doi.org/10.1017/s025292110006663x
https://doi.org/10.1017/s025292110006663x
Autor:
J. R. Stephens, Steven B. Brumby, Paul A. Pope, Ryan A. Channell, Martin Pieck, Eva R. Birnbaum
Publikováno v:
SPIE Proceedings.
Open-air explosive activities are carried out by a variety of institutions, including government agencies and private organizations. These activities result in debris plumes that contain elements of the explosive package as well as substantial amount
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f51b8cfb602591cccdeb6e63107ad1b
https://doi.org/10.1117/12.692452
https://doi.org/10.1117/12.692452