Zobrazeno 1 - 10
of 122
pro vyhledávání: '"S. Wirick"'
Publikováno v:
Journal of Electron Spectroscopy and Related Phenomena. 170:42-48
Carbon NEXAFS and EELS spectra of soot, and NEXAFS spectra of soot extracts, are presented. The EELS spectra of solid soot particles from a TEM-EELS show fewer structures than the corresponding NEXAFS spectra obtained at two different synchrotron bea
Publikováno v:
Journal of Electron Spectroscopy and Related Phenomena. 170:57-64
Scanning transmission X-ray microscopy and micro carbon X-ray Absorption Near Edge Spectroscopy (C-XANES) can provide quantitative information regarding the distribution of the biopolymers cellulose, hemicellulose, and lignin in vascular plant cell w
Autor:
Scott Messenger, S. Wirick, Lindsay P. Keller, Robert O. Pepin, Russel L. Palma, Simon J. Clemett, Michael E. Zolensky, Keiko Nakamura-Messenger
Publikováno v:
Meteoritics & Planetary Science. 43:A15-A178
Autor:
Mary K. Gilles, Keiko Messenger, Chris Jacobsen, M. O'd. Alexander, Harald Ade, S. Wirick, Tolek Tyliszczak, Hikaru Yabuta, Holger Fleckenstein, Anna L. Butterworth, Scott A. Sandford, George D. Cody, George J. Flynn, Andrew J. Westphal, Tohru Araki, A. L. D. Kilcoyne
Publikováno v:
ResearcherID
Synchrotron-based soft X-ray micro-analysis was performed on particles extracted from the Stardust aerogel collector in order to obtain detailed organic functional group information on any organic solids captured as part of the Principal Examination
Publikováno v:
Atmospheric Environment. 40:5837-5844
Aqueous extracts from diesel engine exhaust particulate matter (soot) obtained by hot pressurized water extraction were subject to near-edge X-ray absorption fine structure (NEXAFS) spectroscopy with respect to the carbon K (1 s) absorption edge at a
Autor:
Kerry E. Kelly, G.E. Thomas, Frank E. Huggins, Andreas P. Braun, Naresh Shah, Adel F. Sarofim, S. Wirick, H. E. Francis, Chris Jacobsen, Gerald P. Huffman, Jan Ilavsky
Publikováno v:
Carbon. 43:2588-2599
Diesel soot from reference diesel fuel and oxygenated fuel under idle and load engine conditions was investigated with X-ray scattering and X-ray carbon K-edge absorption spectroscopy. Up to five characteristic size ranges were found. Idle soot was g
Publikováno v:
Symposium - International Astronomical Union. 213:275-280
Interplanetary dust particles (IDPs), ∼ 10μm particles from comets and asteroids, have been collected by NASA from the Earth's stratosphere. We compared carbon X-ray Absorption Near-Edge Structure (XANES) and Fourier Transform Infra-Red (FTIR) spe
Publikováno v:
International Journal of Coal Geology. 32:69-86
Soft X-ray imaging and carbon near edge absorption fine structure spectroscopy (C-NEXAFS) has been used for the in-situ analysis of sporinite in a rank-variable suite of organic-rich sediments extending from up to high volatile A bituminous coal. The
Autor:
J. Fu, Chris Jacobsen, A. Osanna, S. Wang, J. Maser, S. Spector, Janos Kirz, S. Wirick, Henry N. Chapman, Xiaodong Zhang, Donald M. Tennant, Alex Kalinovsky
Publikováno v:
Journal of Electron Spectroscopy and Related Phenomena. 80:337-341
Soft x-ray microscopes offer higher resolution than confocM optical microscopes, and unique contrast characteristics which are well suited to the study of biological and materials science samples. A number of such microscopes are in use worldwide (se
Publikováno v:
Energy & Fuels. 9:525-533
Inner-shell microspectroscopy has been used to provide in-situ microanalysis of organic and inorganic constituents within Wyodak subbituminous coal (APCS No. 2). Two specimens were prepared, one loaded with Ca 2+ and the other rinsed in HCI. Carbon N