Zobrazeno 1 - 10
of 78
pro vyhledávání: '"E. K. Parks"'
Publikováno v:
Medical Dosimetry. 28:243-253
An innovative (and yet simple) dosimetric model is proposed that provides a semi-analytical solution to the total activity-volume relationship in ultrasound-guided transperineal prostate implant. This dosimetric model is based on 4 simple assumptions
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f7ade06e307736956c72feb6064052d
https://doi.org/10.1016/j.meddos.2003.03.001
https://doi.org/10.1016/j.meddos.2003.03.001
Publikováno v:
The Journal of Chemical Physics. 117:95-99
Reactions of N2 with NinAl clusters, n=14–19, are used to determine the location of the Al atom within the cluster framework. N2 saturation levels are consistent with cluster structures in which one surface atom of the corresponding Nin+1 cluster i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1bd2f2901598467007576c3fdcf99299
https://doi.org/10.1063/1.1481387
https://doi.org/10.1063/1.1481387
Publikováno v:
The Journal of Chemical Physics. 115:4125-4131
Two-reagent reactions of Ni19 and Ni23 with hydrogen/deuterium and ammonia are studied to probe adsorbate-induced cluster structural changes. H/D and NH3 bind to the clusters noncompetitively, i.e., to different sites, so simultaneous saturation by t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d6fe2f0c1e6c55e16b5bb1cc196e866
https://doi.org/10.1063/1.1389838
https://doi.org/10.1063/1.1389838
Publikováno v:
The Journal of Chemical Physics. 114:2228-2236
The geometrical structures of Ni46, Ni47, and Ni48 are investigated by the chemical probe method using molecular nitrogen as the probe molecule. Nitrogen saturation levels are determined and found to be consistent with cluster structures derived from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::de1a456dcd3ec9b0fe5e8b974abcaea1
https://doi.org/10.1063/1.1338975
https://doi.org/10.1063/1.1338975
Publikováno v:
The Journal of Chemical Physics. 112:3384-3393
The reactions of small nickel clusters Nin (n=3–60) with carbon monoxide are studied in a gas-phase flow-tube reactor. Cluster coverage is determined as a function of CO pressure at temperatures between −160 and 20 °C. The reactions are kinetica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f593a7eebb620e6cbe0a86972e6a07a
https://doi.org/10.1063/1.480920
https://doi.org/10.1063/1.480920
Publikováno v:
The Journal of Chemical Physics. 112:3394-3407
The saturation levels of small nickel clusters Nin (n=2–20) with CO are determined. Modeling of the CO-covered clusters shows that in almost all cases saturation is governed by the geometrical sizes of the nickel clusters and the van der Waals size
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ad5718cbc1e8d7fdc0b67fee82209160
https://doi.org/10.1063/1.480499
https://doi.org/10.1063/1.480499
Publikováno v:
The Journal of Chemical Physics. 112:2479-2485
The adsorption of C60 on nickel clusters Nin in the n=8–31 size range is studied at elevated temperatures. Above 800 °C, decomposition of C60 is seen on clusters containing oxide impurities by the loss of CO and/or CO2 molecules. The extent of dec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a921761e3d42251e541c1142590c4727
https://doi.org/10.1063/1.480813
https://doi.org/10.1063/1.480813
Publikováno v:
The Journal of Chemical Physics. 109:10207-10216
The geometrical structure of Ni39 is probed via molecular adsorption of nitrogen on its surface. Nitrogen uptake patterns are determined at various reaction temperatures, and the results are interpreted in terms of the number and nature of nitrogen b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5093a287a2bb5d0a2b0c07161afa6e14
https://doi.org/10.1063/1.477715
https://doi.org/10.1063/1.477715
Publikováno v:
The Journal of Chemical Physics. 108:3731-3739
Equilibrium constants for the chemisorption reactions of molecular nitrogen with nickel clusters Nin have been determined as a function of temperature for n=19 to 71. Van’t Hoff analysis of the data yields standard-state changes in reaction enthalp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c0ff092d80d46782044816ea44979f3
https://doi.org/10.1063/1.475779
https://doi.org/10.1063/1.475779
Publikováno v:
The Journal of Chemical Physics. 107:1861-1871
The gas-phase reactions of nitrogen, hydrogen, and carbon monoxide with Ni38 are studied as a function of reagent pressure at several reaction temperatures. Saturation coverage of the cluster is found at Ni38(N2)24, Ni38H36, and Ni38(CO)36. These sat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4be428646207327507f47f8f060f369
https://doi.org/10.1063/1.474536
https://doi.org/10.1063/1.474536