Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Omar F. Carvacho"'
Autor:
Omar F. Carvacho, Lubomir M. Hadjiiski, Gary S. Casuccio, Philip K. Hopke, Steven F. Schlaegle, Xin-Hua Song, Lowell L. Ashbaugh
Publikováno v:
Journal of the AirWaste Management Association (1995). 49(7)
The apportionment of ambient aerosol mass to different sources of airborne soil is a difficult problem because of the similarity of the chemical composition of crustal sources. However, additional information can be obtained using individual particle
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3efc87c020025e884d9f831c509a743e
https://pubmed.ncbi.nlm.nih.gov/28060662
https://pubmed.ncbi.nlm.nih.gov/28060662
Autor:
Robert G. Flocchini, Lowell L. Ashbaugh, Pedro Melin, José E. Celis, Krystyna Trzepla-Nabaglo, Omar F. Carvacho
Publikováno v:
Atmospheric Environment. 38:5349-5352
An aerosol monitoring study was established to measure ambient aerosol composition and study air pollution for one sampling site located at the University of Concepcion, Chillan Campus. Chillan, a typical agricultural city in the central valley, is l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b3d00c92a5ba1ebea127e6808478852
https://doi.org/10.1016/j.atmosenv.2004.03.076
https://doi.org/10.1016/j.atmosenv.2004.03.076
Publikováno v:
Geomorphology. 59:75-80
Human health effects have been linked to airborne concentrations of fine particulate matter. One source of fine particulate matter in the atmosphere is resuspended soil dust from a variety of activities, including agricultural operations. We have est
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e593947dffe0395501bc3744fc2261b3
https://doi.org/10.1016/j.geomorph.2003.09.007
https://doi.org/10.1016/j.geomorph.2003.09.007
Autor:
John G. Watson, Michael S Brown, Lowell L. Ashbaugh, Judith C. Chow, Omar F. Carvacho, Karen C Magliano
Publikováno v:
Atmospheric Environment. 37:1163-1173
A unique set of soil samples was collected as part of the Fugitive Dust Characterization Study. The study was carried out to establish whether or not source profiles could be constructed usingnovel analytical methods that could distinguish soil dust
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1ea463fd66d0aa142e2547781a9acdc8
https://doi.org/10.1016/s1352-2310(02)01022-1
https://doi.org/10.1016/s1352-2310(02)01022-1
Publikováno v:
Applied Radiation and Isotopes. 46:833-838
The production of no-carrier-added (NCA) 18F with high-energy protons on natural Ne(20Ne 90.51%; 21Ne 0.27%; and 22Ne 9.22%) gas targets was studied with external proton beams in the 68-22 MeV energy range. Single (thin-target) (mCi/μAh) yields for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::566b15c693530b9827b356039ee392cb
https://doi.org/10.1016/0969-8043(95)00148-7
https://doi.org/10.1016/0969-8043(95)00148-7
Publikováno v:
International Journal of Radiation Applications and Instrumentation. Part A. Applied Radiation and Isotopes. 43:1375-1381
Thin- and thick-target yields for the production of 34mCl (31.99 min; β + 53%; IT 47%) with high-energy protons on natural isotopic chlorine targets were measured in the 67.5–20.0 MeV energy range. The total cross section for the reactions 35Cl(p,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1741cf036c28d54ab971d51451a0fac0
https://doi.org/10.1016/0883-2889(92)90011-3
https://doi.org/10.1016/0883-2889(92)90011-3
Publikováno v:
International Journal of Radiation Applications and Instrumentation. Part A. Applied Radiation and Isotopes. 43:1005-1011
The production of no-carrier-added (NCA) 18 F from reactions induced by high-energy protons on Na-containing targets was studied. Single (mCi/μAh) and cumulative yields (mCi/μAh) for 18 F were measured in the 67.5–20 MeV proton energy range. Tota
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cadc774e3173730e3b7ac9e85095d563
https://doi.org/10.1016/0883-2889(92)90219-5
https://doi.org/10.1016/0883-2889(92)90219-5
Autor:
Manuel C. Lagunas-Solar, Anibal Demateo, Jaime E. Fernandez, Jose I. Oyarzun, Omar F. Carvacho, Ramon A. Arancibia, Pamela O. Delgado
Publikováno v:
American Journal of Enology and Viticulture. 43:266-274
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b1761b4d0671742fd465acc1dddb5df
https://doi.org/10.5344/ajev.1992.43.3.266
https://doi.org/10.5344/ajev.1992.43.3.266
Publikováno v:
International Journal of Radiation Applications and Instrumentation. Part A. Applied Radiation and Isotopes. 41:521-529
The indirect production of the 3.5 min positron emitter 118Sb (β+ 75%, max. 2.70 MeV, EC 25%) from its longer-lived 118Te (6.00 d) parent was studied using 67.5, 60.0 and 42.0 MeV proton beams to irradiate natural Sb targets. The purpose of this stu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::69f114608e9d908c9d5d6ed1b000c993
https://doi.org/10.1016/0883-2889(90)90033-d
https://doi.org/10.1016/0883-2889(90)90033-d
Publikováno v:
International Journal of Radiation Applications and Instrumentation. Part A. Applied Radiation and Isotopes. 41:349-357
The production of no-carrier-added (NCA) 18 F (109.77 min) from proton induced reactions on Mg targets of natural isotopic composition was investigated in the 67.5-13.7-MeV energy range. In Mg targets, 22 Na (2.602 a) and 24 Na (15.04 h) were detecte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc01682d3d5f351fd3bccd264b53067d
https://doi.org/10.1016/0883-2889(90)90143-5
https://doi.org/10.1016/0883-2889(90)90143-5