4篇
您的检索式：作者名="Lv Bingfeng"
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| 1 | 2-2 Lifetime Measurement of the Low-lying Excited States 7/21^+in^87Zr显示文摘Lifetime measurements of low-lying excited states in^87Zr have been performed viaβ-γcoincidences.The 127 MeV^32S beam was delivered from the Sector-Focusing Cyclotron(SFC)of the Heavy Ion Research Facility in Lanzhou(HIRFL).The parent nuclei^87Nb were produced by the reaction 58Ni(32S,2p1n),at a beam energy 127 MeV through a 8 um Al degrader.A 200ug/cm^2 layer of 58Ni evaporated onto a 200ug/cm^2 thick carbon foil was employed as the target.After evaporation residues were separated from the projectile beams by the gas-filled recoil separator SHANS[1],the nuclei of interest 87Zr can be obtained with a higher purity and then were implanted into a 300um silicon detector. | Qiang Yunhua Liu Minliang Zhou Xiaohong Wang Jianguo Guo Song Wang Kailong Lv Bingfeng Zheng Yong Gan Zaiguo Ma Long Yang Huabin Ding Bing Huang Tianheng Sun Mingdao | 2016 | IMP & HIRFL Annual Report2016，，1： | 0 |
| 2 | 2-2 Lifetime Measurements of the Low-lying Excited States in 87 Zr and 87 Nb显示文摘Lifetime measurements of low-lying excited states in 87Zr and 87Nb have been performed via and coincidences. The 124 MeV 32S beam was delivered from the Sector-Focusing Cyclotron (SFC) of the Heavy Ion R-esearch Facility in Lanzhou (HIRFL). The parent nuclei 87Nb and 87Mo were produced by the respective reactions 58Ni (32S, 3p) and 58Ni (32S, 2p1n), at a beam energy 100 MeV through the 8 m Al degrader. | Qiang Yunhua Liu Minliang Zhou Xiaohong Wang Jianguo Wang Kailong Lv Bingfeng Zheng Yong Gan Zaiguo Zhang Zhiyuan Ma Long Yang Huabin Yu Lin Jiang Jian Sun Mingdao | 2015 | IMP & HIRFL Annual Report2015，，1： | 0 |
| 3 | 2-3 Lifetime Measurement of the First Excited State in 37S显示文摘We have found that the excited energy from the ground state with 1f7=2 configuration to the first excited state with 2p3=2 configuration in 37S is obviously lower compared with that in nearby N=21 isotones 35Si, 39Ar and 41Ca (see Fig. 1, The insert indicates the relevant single-particle orbits of proton and neutron). This interesting phenomenon may result from the collapse of N=28 closure, which gives the sufficient valence space for collective deformation which can been revealed from the B(E2) value. Therefore, to obtain the B(E2), we perform the experiments for measuring the lifetime of the first excited state in 37S. | Wang Kailong Liu Minliang Wang Jianguo Qiang Yunhua Gao Bingshui Zheng Yong Lv Bingfeng Zhang Zhiyuan Zhang Wenqiang Zhou Xiaohong Wang Jiansong Yang Yanyun Bai Zhen Ma Peng Jin Shilun Ma Junbing Duan Fangfang Zhang Xing Jiao Lei | 2015 | IMP & HIRFL Annual Report2015，，1： | 0 |
| 4 | Phenanthroline Derivatives as Efficient Organic Photocatalysts for Visible-Light-Mediated PET-RAFT Polymerization显示文摘Phenanthroline is an excellent and stableπ-electron acceptor with a large conjugated chromophore.Phenanthroline derivatives are widely used in adsorption,photodegradation,solar cells,biology,and so on.At present,there are still limited organic molecules utilized to efficiently photocatalyze reversible-deactivation radical polymerization(RDRP).Therefore,the design of organic photocatalysts(OPCs)for RDRP remains a challenge.Herein,according to the strategy of combining the donor groups and weak acceptor groups,donor-acceptor(D-A)type OPCs based on phenanthroline were utilized for the first time in photoinduced electron transfer-reversible addition-fragmentation chain transfer(PET-RAFT)polymerization.1,10-Phenanthroline-5-amine(Aphen)with a donor group-amino was screened out for efficacious photo-controlled radical polymerization under blue light for various monomers with conjugated and unconjugated structures with high monomer conversion and well-defined narrow dispersity polymers(Đ<1.20).Controllable homo-polymers and block copolymers were successfully realized by chain extension reaction and block copolymerization of structurally diverse monomers. | Yang Xiao Wanchao Hu Zhinan Xia Bingfeng Shi Changli Lv | 2023 | Chinese Journal of Chemistry2023，41，20： | 0 |
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