排序方式: 共有10条查询结果,搜索用时 15 毫秒
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Arisaka K Auerbach LB Axelrod S Belz J Biery KA Buchholz P Chapman MD Cousins RD Diwan MV Eckhause M Ginkel JF Guss C Hancock AD Heinson AP Highland VL Hoffmann GW Horvath J Irwin GM Joyce D Kaarsberg T Kane JR Kenney CJ Kettell SH Kinnison WW Knibbe P Konigsberg J Kuang Y Lang K Lee DM Margulies J Mathiazhagan C McFarlane WK McKee RJ Melese P Milner EC Molzon WR Ouimette DA Riley PJ Ritchie JL Rubin P Sanders GH Schwartz AJ Sivertz M Slater WE Urheim J Vulcan WF Wagner DL Welsh RE Whyley RJ 《Physical review letters》1993,71(24):3910-3913
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Mathiazhagan C Molzon WR Cousins RD Konigsberg J Kubic J Melese P Rubin P Slater WE Wagner D Hart GW Kinnison WW Lee DM McKee RJ Milner EC Sanders GH Ziock HJ Arisaka K Knibbe P Urheim J Axelrod S Biery KA Irwin GM Lang K Margulies J Ouimette DA Ritchie JL Trang QH Wojcicki SG Auerbach LB Buchholz P Highland VL McFarlane WK Sivertz M Chapman MD Eckhause M Ginkel JF Hancock AD Joyce D Kane JR Kenney CJ Vulcan WF Welsh RE Whyley RJ Winter RG 《Physical review letters》1989,63(20):2181-2184
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J. H. Kaye R. R. Kinnison F. P. Brauer 《Journal of Radioanalytical and Nuclear Chemistry》1985,89(2):571-587
A comparison is made in this paper of the number of radioactive atoms which can be detected by means of two data analysis methods. One method is the conventional data acquisition and reduction method and the other measures and records the time of each detected decay event. By use of simulation methods it is shown that under appropriate conditions the latter method can detect a smaller number of atoms of a decaying radionuclide in the presence of a constant background component.This paper is based on work sponsored by the Division of Chemical Sciences of the Department of Energy and performed under DOE Contract DE-AC06-76RLO-1830. 相似文献
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Positron annihilation in ammonia gas at temperatures of ?19°C, 22,5°C, and 95°C in the density range 1.76 × 10?4 g/cm3 to 6.63 × 10?3 g/cm3 is investigated. 1Zeff for orthopositronium annihilation is 0.58 ± 0.04 Zeff/ Z for positrons not forming positronium varies from about 117 to 1329. 相似文献
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Arisaka K Auerbach LB Axelrod S Belz J Biery KA Buchholz P Chapman MD Cousins RD Diwan MV Eckhause M Ginkel JF Guss C Hancock AD Heinson AP Highland VL Hoffmann GW Horvath J Irwin GM Joyce D Kaarsberg T Kane JR Kenney CJ Kettell SH Kinnison WW Knibbe P Konigsberg J Kuang Y Lang K Lee DM Margulies J Mathiazhagan C McFarlane WK McKee RJ Melese P Milner EC Molzon WR Ouimette DA Riley PJ Ritchie JL Rubin P Sanders GH Schwartz AJ Sivertz M Slater WE Urheim J Vulcan WF Wagner DL Welsh RE Whyley RJ 《Physical review letters》1993,70(8):1049-1052
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Antonio Francs‐Monerris Javier Carmona‐García A. Ulises Acua Juan Z. Dvalos Carlos A. Cuevas Douglas E. Kinnison Joseph S. Francisco Alfonso Saiz‐Lopez Daniel Roca‐Sanjun 《Angewandte Chemie (International ed. in English)》2020,59(19):7605-7610
Mercury is a contaminant of global concern that is transported throughout the atmosphere as elemental mercury Hg0 and its oxidized forms HgI and HgII. The efficient gas‐phase photolysis of HgII and HgI has recently been reported. However, whether the photolysis of HgII leads to other stable HgII species, to HgI, or to Hg0 and its competition with thermal reactivity remain unknown. Herein, we show that all oxidized forms of mercury rapidly revert directly and indirectly to Hg0 by photolysis. Results are based on non‐adiabatic dynamics simulations, in which the photoproduct ratios were determined with maximum errors of 3%. We construct for the first time a complete quantitative mechanism of the photochemical and thermal conversion between atmospheric HgII, HgI, and Hg0 compounds. These results reveal new fundamental chemistry that has broad implications for the global atmospheric Hg cycle. Thus, photoreduction clearly competes with thermal oxidation, with Hg0 being the main photoproduct of HgII photolysis in the atmosphere, which significantly increases the lifetime of this metal in the environment. 相似文献
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Mathiazhagan C Molzon WR Cousins RD Konigsberg J Kubic J Melese P Rubin P Slater WE Wagner D Hart GW Kinnison WW Lee DM McKee RJ Milner EC Sanders GH Ziock HJ Arisaka K Knibbe P Urheim J Axelrod S Biery KA Irwin GM Lang K Margulies J Ouimette DA Ritchie JL Trang QH Wojcicki SG Auerbach LB Buchholz P Highland VL McFarlane WK Sivertz M Chapman MD Eckhause M Ginkel JF Hancock AD Joyce D Kane JR Kenney CJ Vulcan WF Welsh RE Whyley RJ Winter RG 《Physical review letters》1989,63(20):2185-2188
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Heinson AP Horvath J Knibbe P Mathiazhagan C Molzon WR Urheim J Arisaka K Cousins RD Kaarsberg T Konigsberg J Melese P Rubin P Slater WE Wagner D Hart GW Kinnison WW Lee DM McKee RJ Milner EC Sanders GH Ziock HJ Axelrod S Biery KA Diwan M Irwin GM Lang K Margulies J Ouimette DA Schwartz AJ Wojcicki SG Auerbach LB Belz J Buchholz P Guss C Highland VL Kettell SH McFarlane WK Sivertz M Hoffmann GW Riley PJ Ritchie JL Yamashita A Chapman MD Eckhause M Ginkel JF Hancock AD Kane JR Kenney CJ Kuang Y 《Physical review D: Particles and fields》1995,51(3):985-1013
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Heinson AP Horvath J Mathiazhagan C Molzon WR Arisaka K Cousins RD Kaarsberg T Konigsberg J Rubin P Slater WE Wagner DL Kinnison WW Lee DM McKee RJ Milner EC Sanders GH Ziock HJ Knibbe P Urheim J Biery KA Diwan MV Irwin GM Lang K Margulies J Ouimette DA Schwartz A Wojcicki SG Auerbach LB Belz J Buchholz P Highland VL McFarlane WK Sivertz M Ritchie JL Yamashita A Chapman MD Eckhause M Ginkel JF Hancock AD Kane JR Kenney CJ Kuang Y Vulcan WF Welsh RE Whyley RJ Winter RG 《Physical review D: Particles and fields》1991,44(1):R1-R5
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