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773115293新蟲 (著名寫手)
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[求助]
翻譯一段英文文獻(xiàn)(數(shù)字細(xì)節(jié)沒事)
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| Therefore, the apparent diffusion coefficient Da value decreases with the increasing of dry density. For example, the Da of 99Tc decreases from 69 to 1.0 ×10-11 m2/s when bulk density is increased from 200 to 2000 kg/m3 [12], and Da of Se decreases from 43 to 3.2 ×10-11 m2/s when density change from 400 to 1800 kg/m3 [13]. However, as far as we know, the diffusion of 99Tc and Se diffusion are investigated at dry density in the range from 800 to 1800 kg/m3, the study high density like 2000 kg/m3 is absence. Previous study, HTO and 125I have studies at dry density from 1600 to 2000 kg/m3 [4, 14] in GMZ. Re(as analogue to 99Tc) and Se have investigated at 1300 kg/m3 as well [15]. In this study, the diffusion behaviors of Re and Se are studied at 2000 kg/m3 density in order to enrich the diffusion database in HLW. Out- diffusion method was employed to check the correction of the obtained diffusion parameters. |
金蟲 (著名寫手)
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因此,表觀擴(kuò)散系數(shù)Da值隨著干密度的增加而減小。例如, 當(dāng)堆密度從200增加到2000 kg/m3時(shí),99Tc的Da值從69減小到1.0?0 - 11 m2/秒[12],并且,當(dāng)密度從400變?yōu)?800 kg/m3時(shí)Se從43減小到3.2?0-11 m2/秒[13]。然而,據(jù)我們所知, 99Tc的擴(kuò)散和Se擴(kuò)散是干密度于800到1800 kg/m3范圍內(nèi)考察的,缺少如2000 kg/m3的高密度研究。 先前HTO和125I已經(jīng)由1600到2000 kg/m3的干密度對(duì)GMZ進(jìn)行過研究。 同樣Re(與99Tc類似)和Se已經(jīng)于1300 kg/m3進(jìn)行過調(diào)查[15]。本研究為了豐富HLW中的擴(kuò)散數(shù)據(jù)庫(kù),于2000 kg/m3密度對(duì)Re和Se的擴(kuò)散行為進(jìn)行了研究。采用外擴(kuò)散方法復(fù)核所得擴(kuò)散參數(shù)的校正值。 |
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