Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Phyllis Ko"'
Autor:
Sarah Anne J. Guagliardo, Teresa Smith, Davidson H. Hamer, Ralph Huits, Phyllis Kozarsky, Michael Libman, Andrea M. McCollum, Kristina M. Angelo
Publikováno v:
Emerging Infectious Diseases, Vol 30, Iss 11, Pp 2381-2384 (2024)
We used cross-sectional data from 226 patients with monkeypox virus to investigate the association between anatomic exposure site and lesion development. Penile, anorectal, and oral exposures predicted lesion presence at correlating anatomic sites. E
Externí odkaz:
https://doaj.org/article/808545375e284f21aaaa5a3714ba13d2
Publikováno v:
Spectrochimica Acta Part B: Atomic Spectroscopy. :72-76
Laser-induced breakdown spectroscopy can be augmented by concurrent spectroscopic measurements of molecules and molecular ions resulting from recombination of laser-ablated plasmas with the ablated sample and surrounding environment. Molecular emissi
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 296:135-141
When compared to many other sensitive methods for material detection, such as inductively coupled mass spectroscopy and thermal ionization mass spectroscopy, laser-induced breakdown spectroscopy (LIBS) typically exhibits a lower signal-to-noise ratio
To more fully take advantage of a low-cost, small footprint hybrid interferometric/dispersive spectrometer, a mathematical reconstruction technique was developed to accurately capture the high-resolution and relative peak intensities from complex spe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e9e748b044e8deebdc318f30a521aadd
http://arxiv.org/abs/1508.07303
http://arxiv.org/abs/1508.07303
Publikováno v:
Frontiers in Optics 2015.
A hybrid interferometric/dispersive instrument is used to measure laser-induced plasma spectra. An analysis method that rapidly reconstructs the high-resolution source spectra was developed for this instrument.
Publikováno v:
Frontiers in Optics 2014.
We report the first implementation of a laser-induced breakdown spectroscopy system driven by 2-μm femtosecond pulses. Ab initio modeling is used to explain the present femtosecond results and the previously reported nanosecond results.
Publikováno v:
Frontiers in Optics 2013.
Femtosecond and nanosecond laser ablation were used to perform isotopic measurements of boron using molecular emission spectra acquired by a non-gated detector. The accuracy of isotopic reconstruction is relatively insensitive to laser pulse duration
Autor:
K. C. Hartig, Phyllis Ko, Jessica P. McNutt, Igor Jovanovic, Randy Schur, Timothy Jacomb-Hood
Publikováno v:
Frontiers in Optics 2012/Laser Science XXVIII.
Experimental evidence for a significant effect of pulse chirp in laser-induced breakdown spectroscopy of uranium is reported. A 27% improvement in the signal-to-noise ratio is demonstrated by the use of linear chirp.
Autor:
T. W. Jacomb-Hood, Igor Jovanovic, Jessica P. McNutt, Phyllis Ko, K. C. Hartig, R. B. D. Schur
Publikováno v:
Review of Scientific Instruments. 84:013104
Laser-induced breakdown spectroscopy (LIBS) is an established technique for material characterization applicable to a variety of problems in research, industry, environmental studies, and security. LIBS conducted with femtosecond laser pulses exhibit
Autor:
Kristina M. Angelo, Michael Libman, Eric Caumes, Davidson H. Hamer, Kevin C. Kain, Karin Leder, Martin P. Grobusch, Stefan H. Hagmann, Phyllis Kozarsky, David G. Lalloo, Poh-Lian Lim, Calvin Patimeteeporn, Philippe Gautret, Silvia Odolini, François Chappuis, Douglas H. Esposito, for the GeoSentinel Network
Publikováno v:
Malaria Journal, Vol 16, Iss 1, Pp 1-9 (2017)
Abstract Background More than 30,000 malaria cases are reported annually among international travellers. Despite improvements in malaria control, malaria continues to threaten travellers due to inaccurate perception of risk and sub-optimal pre-travel
Externí odkaz:
https://doaj.org/article/18136b49f34f401d9342ae6c1394639c