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| 1 | ΛN张量相互作用的首次观测显示文摘在用HYPERBALL进行的16ΛO的γ射线谱学测量中,观察到由16ΛO的6.6MeV1-2激发态跃迁到基态自旋翻转二重态(1-1和0-)之间的两条γ射线.由这两条γ射线的能量差得到基态二重态之间的能量间隔为26.4±1.6(stat)±0.5(syst)keV,并由此推导出ΛN之间的张量相互作用强度T=0.03MeV.实验还测定了16ΛO的1-2激发态的激发能为6561.7±1.1(stat)±1.7(syst)keV. | 周书华 周静 孟秋英 S.Ajimura H.Akikawa D.E.Alburger A.Banu R.E.Chrien G.B.Franklin J.Franz O.Hashimoto T.Hayakawa H.Hotchi K.Imai T.Kishimoto M.May D.J.Millener S.Minami Y.Miura T.Miyoshi K.Mizunuma T.Nagae S.N.Nakamura K.Nakazawa Y.Okayasu P.Pile B.P.Quinn A.Rusek Y.Sato R.Sutter H.Takahashi L.Tang H.Tamura K.Tanida M.Ukai L.Yuan | 2005 | 高能物理与核物理2005,29,7: | 1 |
| 2 | Ag nanoparticle dispersed PbTiO percolative composite thin film with high permittivity显示文摘 | Z.Wang T.Hu L.Tang N.Ma C.Song G.Han W.Weng P.Du | | 0,,: | 1 |
| 3 | Capecitabine for the treatment for advanced gastric cancer: efficacy, safety and ethnicity显示文摘 | Y.Ma L.Tang H.‐X.Wang Y.‐C.Xu Y.Ma F.‐C.Zhang | 2012 | Journal of Clinical Pharmacy and Therapeutics2012,,3: | 1 |
| 4 | Classification of CIE standard skies using probabilistic neural networks显示文摘 | Danny H. W.Li H. L.Tang Eric W. M.Lee TariqMuneer | 2010 | Climatol2010,,2: | 1 |
| 5 | Unlocked disinfection by-product formation potential upon exposure of swimming pool water to additional stimulants显示文摘Anthropogenic organics are known to be responsible for the formation of harmful disinfection byproducts (DBPs) in swimming pool water (SPW). The research explored an important scenario of SPW with no additional anthropogenic organic input. With stimulations by residual chlorine or additional chlorine and extended incubation, the formation of DBPs, especially chlorofonn, was significantly induced. Similar observations were found by investigating synthetic SPW made with sweat and urine. The presence of urine led to a massive fbmiation of chloroform, as noted by an approximate 19-fbld increase after 165-day incubation with a shock chlorine dose. The research suggests that consistent residual chlorine and long water retention as two typical features of SPW could unlock the DBP fbnnation potential of anthropogenic organics. Thus, limiting the introduction of anthropogenic organics may not have an immediate effect on reducing DBP levels, because their reactions with chlorine can be slow and long-lasting. Pool management should prioritize on control of urine and improving air ventilation. This work is useful to deepen understandings about DBP formation in SPW and provide implications for pool management and prospective legislation. | Alvyn P.Berg Ting-An Fang Hao L.Tang | 2019 | Frontiers of Environmental Science & Engineering2019,13,1: | 1 |
| 6 | In situ neutron diffraction unravels deformation mechanisms of a strong and ductile Fe Cr Ni medium entropy alloy显示文摘We investigated the mechanical and microstructural responses of a high-strength equal-molar medium entropy FeCrNi alloy at 293 and 15 K by in situ neutron diffraction testing.At 293 K,the alloy had a very high yield strength of 651±12 MPa,with a total elongation of 48%±5%.At 15 K,the yield strength increased to 1092±22 MPa,but the total elongation dropped to 18%±1%.Via analyzing the neutron diffraction data,we determined the lattice strain evolution,single-crystal elastic constants,stacking fault probability,and estimated stacking fault energy of the alloy at both temperatures,which are the critical parameters to feed into and compare against our first-principles calculations and dislocation-based slip system modeling.The density functional theory calculations show that the alloy tends to form shortrange order at room temperatures.However,atom probe tomography and atomic-resolution transmission electron microscopy did not clearly identify the short-range order.Additionally,at 293 K,experimental measured single-crystal elastic constants did not agree with those determined by first-principles calculations with short-range order but agreed well with the values from the calculation with the disordered configuration at 2000 K.This suggests that the alloy is at a metastable state resulted from the fabrication methods.In view of the high yield strength of the alloy,we calculated the strengthening contribution to the yield strength from grain boundaries,dislocations,and lattice distortion.The lattice distortion contribution was based on the Varenne-Luque-Curtine strengthening theory for multi-component alloys,which was found to be 316 MPa at 293 K and increased to 629 MPa at 15 K,making a significant contribution to the high yield strength.Regarding plastic deformation,dislocation movement and multiplication were found to be the dominant hardening mechanism at both temperatures,whereas twinning and phase transformation were not prevalent.This is mainly due to the high stacking fault energy of the alloy as estimated to be 63 mJ m^(-2) at 293 K and 47 mJ m^(-2) at 15 K.This work highlights the significance of lattice distortion and dislocations played in this alloy,providing insights into the design of new multicomponent alloys with superb mechanical performance for cryogenic applications. | L.Tang F.Q.Jiang J.S.Wróbel B.Liu S.Kabra R.X.Duan J.H.Luan Z.B.Jiao M.M.Attallah D.Nguyen-Manh B.Cai | 2022 | Journal of Materials Science & Technology2022,,21: | 0 |
| 7 | Position reconstruction in fission fragment detection using the low pressure MWPC technique for the JLab experiment E02-017显示文摘When a Λ hyperon is embedded in a nucleus it can form a hypernucleus. The lifetime and its mass dependence of stable hypernuclei provide information about the ΛN interaction in the nuclear medium. This work will introduce the Jefferson Lab experiment(E02-017), which aims to study the lifetime of the heavy hypernuclei using a specially developed fission fragment detection technique: a multi-wire proportional chamber operating under low gas pressure(LPMWPC). The trajectory of the detected fragment is reconstructed and used to find the fission point on the target foil, the position resolution is less than 1 mm, which meets the original design, the separation of target materials and events mixture percentage in different regions are verified by Monte Carlo simulation. | 邱玺玉 L.Tang A.Margaryan 徐进章 胡碧涛 陈熙萌 | 2014 | Chinese Physics C2014,38,7: | 0 |