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| 1 | Determination of the ^(12)C(p, γ)^(13)N reaction rates fromthe ^(12)C(~7Li,~6He)^(13)N reaction显示文摘The angular distribution of the 12C(7Li,6He)13N reaction at E(7Li) = 44.0 MeV was measured at the HI-13 tandem accelerator of Beijing, China. The asymptotic normalization coefficient (ANC) of 13N → 12C + p was derived to be (1.64 ± 0.11) fm-1/2 through the distorted wave Born approximation (DWBA) analysis. The ANC was then used to deduce the astrophysical S (E) factors and reaction rates for the 12C(p,γ)13N direct capture reaction at energies of astrophysical relevance. | LI ZhiHong, SU Jun, GUO Bing, LI ZhiChang, BAI XiXiang, LIU JianCheng, LI YunJu, YAN ShengQuan, WANG BaoXiang, WANG YouBao, LIAN Gang, ZENG Sheng, LI ErTao, CHEN YongShou, SHU NengChuan, FAN QiWen & LIU WeiPing China Institute of Atomic Energy, Beijing 102413, China | 2010 | Science China(Physics,Mechanics & Astronomy)2010，53，4： | 6 |
| 2 | Progress of Jinping Underground laboratory for Nuclear Astrophysics(JUNA)显示文摘Jinping Underground laboratory for Nuclear Astrophysics(JUNA) will take the advantage of the ultra-low background of CJPL lab and high current accelerator based on an ECR source and a highly sensitive detector to directly study for the first time a number of crucial reactions occurring at their relevant stellar energies during the evolution of hydrostatic stars. In its first phase, JUNA aims at the direct measurements of^(25)Mg(p,γ)^(26)Al,^(19)F(p,α)^(16)O,^(13)C(α,n)^(16)O and ^(12)C(α,γ)^(16)O reactions. The experimental setup,which includes an accelerator system with high stability and high intensity, a detector system, and a shielding material with low background, will be established during the above research. The current progress of JUNA will be given. | WeiPing Liu ZhiHong Li JiangJun He XiaoDong Tang Gang Lian Zhu An JianJun Chang Han Chen QingHao Chen XiongJun Chen ZhiJun Chen BaoQun Cui XianChao Du ChangBo Fu Lin Gan Bing Guo GuoZhu He Alexander Heger SuQing Hou HanXiong Huang Ning Huang BaoLu Jia LiYang Jiang Shigeru Kubono JianMin Li KuoAng Li Tao Li YunJu Li Maria Lugaro XiaoBing Luo HongYi Ma ShaoBo Ma DongMing Mei YongZhong Qian JiuChang Qin Jie Ren YangPing Shen Jun Su LiangTing Sun WanPeng Tan Isao Tanihata Shuo Wang Peng Wang YouBao Wang Qi Wu ShiWei Xu ShengQuan Yan LiTao Yang Yao Yang XiangQing Yu Qian Yue Sheng Zeng HuanYu Zhang Hui Zhang LiYong Zhang NingTao Zhang QiWei Zhang Tao Zhang XiaoPeng Zhang XueZhen Zhang ZiMing Zhang Wei Zhao Zuo Zhao Chao Zhou | 2016 | Science China(Physics,Mechanics & Astronomy)2016，59，4： | 3 |
| 3 | A proposed direct measurement of cross section at Gamow window for key reaction 19F(p,α) 16O in Asymptotic Giant Branch stars with a planned accelerator in CJPL显示文摘In 2014, the National Natural Science Foundation of China(NSFC) approved the Jinping Underground Nuclear Astrophysics laboratory(JUNA) project, which aims at direct cross-section measurements of four key stellar nuclear reactions right down to the Gamow windows. In order to solve the observed fluorine overabundances in Asymptotic Giant Branch(AGB) stars, measuring the key ^(19)F( p,α)^(16)O reaction at effective burning energies(i.e., at Gamow window) is established as one of the scientific research sub-projects. The present paper describes this sub-project in details, including motivation, status, experimental setup, yield and background estimation, aboveground test, as well as other relevant reactions. | JianJun He ShiWei Xu ShaoBo Ma Jun Hu LiYong Zhang ChangBo Fu NingTao Zhang Gang Lian Jun Su YunJu Li ShengQuan Yan YangPing Shen SuQing Hou BaoLu Jia Tao Zhang XiaoPeng Zhang Bing Guo Shigeru Kubono WeiPing Liu | 2016 | Science China(Physics,Mechanics & Astronomy)2016，59，5： | 3 |
| 4 | Parametrization of woods-saxon potential for heavy-ion systems显示文摘Several elastic scattering angular distributions of ^(12)C from target nuclei of A ≥39 are analyzed to extract the Woods-Saxon potential parameters with the fixed imaginary potential and Coulomb radius parameters.Using the best fitted diffuseness parameters,the correlations of the real part parameters with A_1^(1/3)+ A_2^(1/3) and incident energy are revealed, and the systematic Woods-Saxon potential parameters are presented for nucleus-nucleus interaction.The proposed potential parameters can reproduce not only the elastic scattering angular distributions induced by ^(12)C,but also many elastic scattering angular distributions induced by the projectiles other than ^(12)C,thus providing important inputs for the study of nuclear reactions of heavy-ion systems. | Lin Gan ZhiHong Li HuiBin Sun DanYang Pang Bing Guo YunJu Li Jun Su ShengQuan Yan ErTao Li YouBao Wang Gang Lian ZhiYu Han XinYue Li DongHui Li TianLi Ma ChangJin Pei YangPing Shen Yi Su Sheng Zeng Yong Zhou WeiPing Liu | 2017 | Science China(Physics,Mechanics & Astronomy)2017，60，8： | 2 |
| 5 | Current re-vegetation patterns and restoration issues in degraded geological phosphorus-rich mountain areas:A synthetic analysis of Central Yunnan, SW China显示文摘China has the largest area of inland geological phosphorus-rich(GPR) mountains in the world, where vegetation restoration is key to safeguarding the environment. We reviewed the published literature and collected new data in order to analyze re-vegetation patterns and the status of plant communities in central Yunnan. The aim of our analysis was to suggest future improvements to restoration strategies in GPR mountain regions. Our results showed that spontaneous recovery was the most widespread type of restoration. N-fixing species such as Coriaria nepalensis and Alnus nepalensis play a vital role in succession. In the past, monoculture tree plantation was the primary method used in afforestation activities in central Yunnan; in recent years however, several different methods of restoration have been introduced including the use of agroforestry systems. For practical restoration, we found that spontaneous recovery was capable of delivering the best results, but that during its early stages, restoration results were affected by several factors including erosion risk, the origin of propagates and environmental variation. In contrast, methods employing human-made communities performed better in their early stages, but were constrained by higher costs and vulnerability to degradation and erosion. The use of N-fixing species such as A. nepalensis and Acacia mearnsii in plantations were unsuccessful in restoring full ecosystem functions. The success of restoration activities in GPR mountain regions could be improved through the following measures:(1) developing a better understanding of the respective advantages and disadvantages of current natural and human-engineered restoration approaches;(2) elucidating the feedback mechanism between phosphorus-rich soil and species selected for restoration, especially N-fixing species;(3) introducing market incentives aimed at encouraging specific restoration activities such as agroforestry, and improving the industry value chain. | Kai Yan Sailesh Ranjitkar Deli Zhai Yunju Li Jianchu Xu Bo Li Yang Lu | 2017 | Plant Diversity2017，39，3： | 2 |
| 6 | Studies on fossil Metasequoia from northeast China and their taxonomic implications 显示文摘 | Liu Yunju Li Chengsen Wang Yufei | 1999 | Botanical Journal of Linnean Society1999，130，： | 1 |
| 7 | Recrystalli- zation and fatigue failure of DS alloy blades 显示文摘 | Zhang Weifang Li Yunju Liu Gaoyuan | 2004 | Eng Fail Anal2004，11，3： | 1 |
| 8 | Empirical formula for β^--decay half-lives of r-process nuclei显示文摘Experimental data ofβ--decay half-lives of nuclei with atomic number between 20 and 190 are investigated.A systematic formula has been proposed to calculateβ^--decay half-lives of neutron-rich nuclei,with a particular consideration on shell and pair effects,the decay energy Q as well as the nucleon numbers(Z,N).Although the formula has relatively few parameters,it reproduces the experimentalβ^--decay half-lives of neutron-rich nuclei very well.The predicted half-lives for the r-process relevant nuclei obtained with the current formula serve as reliable input in the r-process model calculations. | Yong Zhou ZhiHong Li YouBao Wang YongShou Chen Bing Guo Jun Su YunJu Li ShengQuan Yan XinYue Li ZhiYu Han YangPing Shen Lin Gan Sheng Zeng Gang Lian WeiPing Liu | 2017 | Science China(Physics,Mechanics & Astronomy)2017，60，8： | 1 |
| 9 | Response of hydrological proces- ses to land cover and climate changes in Songhuaba watershed, Southwest China显示文摘 | Li Yaoji Li Yunju Li Xiaoshuang | 2012 | Disaster Advances2012，5，1： | 1 |
| 10 | Recrystallization and Fatigue Failure of DS Alloy Blades显示文摘 | Li Yunju Liu Gaoyuan | 2004 | Engineering Failure Analysis2004，11，3： | 1 |
| 11 | Development in vibration-based structural damage detection technique显示文摘 | Yan Yunju Cheng Li Wu Ziyan | 2007 | Mechanical Systems and Signal Processing2007，21，5： | 1 |
| 12 | Jinping Underground Laboratory Common Experimental Platform for Nuclear Astrophysics显示文摘The accurate measurement of key reactions based on underground laboratory has been an international frontier of nuclear astrophysics.The project aims to build an common platform for Jinping Underground Laboratory for Nuclear Astrophysics(JUNA).As the basis,the project will support the study of JUNA physics experi- | LIAN Gang CHEN Lihua CUI Baoqun LI Yunju SU Jun SHEN Yangping YAN Shengquan ZHANG Huanyu LIU Ping REN Jie | 2017 | Annual Report of China Institute of Atomic Energy2017，，1： | 0 |
| 13 | Study on 95Zr(n, γ)96Zr, an Important Reaction of s-Process in Heavy Element Synthesis and Development of Large Solid Angle BGO Detection Array显示文摘In recent years,a large number of experimental data have been obtained from the measurement of the stable nuclear neutron capture cross section,which has been applied to the calculation of the neutron synthesis network.However,a large | MA Tianli GUO Bing HAN Zhiyu LI Xinyue LI Yunju LI Zhihong LIAN Gang LIU Weiping SHEN Yangping SU Jun SU Yi WANG Youbao YAN Shengquan ZENG Sheng | 2017 | Annual Report of China Institute of Atomic Energy2017，，1： | 0 |
| 14 | The First Experimental Constraint of Spectroscopic Amplitudes forα-cluster in (11)~B Ground State显示文摘The nuclear cluster structure is one of the key problems in the nuclear physics research.Theα-transfer reactions,being most likely to take place by cluster transfer,not only can be utilized to investigate nuclear structure(e.g.,α-decay widths)and nuclear reaction mechanisms,but also are of particular interest for the study of astrophysicalα-particle induced reactions which are one kind of the most important reactions in nuclear astrophysics,since helium is the second most abundant element in the observable universe after hydrogen. | SHEN Yangping GUO Bing MA Tianli LI Yunju | 2018 | 中国原子能科学研究院年报2018，，1： | 0 |
| 15 | Measurement of 25Mg(7Li,6He)26Al Angular Distribution显示文摘In order to study the 58keV resonance in 25Mg(p,γ)26Al reaction,the measurement of the25Mg(7Li,6 He)26 Al*6.364reaction was carried out by using a 31.5 MeV 7Li beam from the HI-13tandem accelerator,Beijing.The 200 enA 7Li beam impinged on 25MgO,24MgO and 12C target, | LI Yunju | 2017 | Annual Report of China Institute of Atomic Energy2017，，1： | 0 |
| 16 | Determination of the ^(25)Mg(p,γ)^(26)Al resonance strength at E_(c.m.)=58 keV via shell model calculation显示文摘The observation of 26 Al is an useful tool for γ-ray astronomy and in studies of galactic chemical evolution. The most likely mechanism for 26A1 nucleosynthesis is in the hydrogen burning Mg Al cycle, and the 26A1 production reaction 25Mg(p,γ)26Al at the important temperature range below T = 0.2 GK is still not well known. The spectroscopic factor of 58 ke V resonance level in 26A1 is determined with shell model calculation and then used to deduce the resonance strength of the 25Mg(p,γ)26Al reaction. The result provides a reference for the future 25Mg(p,γ)26Al direct measurement at Jinping underground laboratory. | LI ZhiHong SU Jun LI YunJu GUO Bing LI ErTao WANG YouBao YAN ShengQuan LIU WeiPing | 2015 | Science China(Physics,Mechanics & Astronomy)2015，58，8： | 0 |
| 17 | A Method for Reducing Ocean Wave-Induced Magnetic Noises in Shallow-Water MT Data Using a Complex Adaptive Filter显示文摘In shallow-water areas,the marine magnetotelluric(MT)method faces a challenge in the investigation of seabed conductivity structures due to electrical and magnetic noises induced by ocean waves,which seriously contaminate MT data.Ocean waves can affect electric and magnetic fields to different extents.In general,their influence on magnetic fields is considerably greater than that on electric fields.In this paper,a complex adaptive filter is adopted to reduce wave-induced magnetic noises in the frequency domain.The processing results of synthetic and measured MT data indicate that the proposed method can effectively reduce wave-induced magnetic noises and provide reliable apparent resistivity and phase data. | WU Yunju LUO Ming LI Yuguo GE Jiaqi PAN Lindong | 2023 | Journal of Ocean University of China2023，22，1： | 0 |
| 18 | Measurement of β Delayed γ Decay of 47Mn显示文摘The isobaric multiplet mass equation(IMME)is one of the basic conclusions derived from the concept of isospin.IMME has been fre-quently tested using experimentally determined masses.Significant deviations of IMME have been found in A=8,9,32and 35quartets | SU Jun HAN Zhiyu SHEN Yangping LI Zhihong WANG Youbao GUO Bing YAN Shengquan LI Yunju ZENG Sheng LIAN Gang MA Tianli LI Xinyue SU Yi LIU Weiping | 2017 | Annual Report of China Institute of Atomic Energy2017，，1： | 0 |
| 19 | Study of β-γ-α Exotic Decay Mode in 20Na显示文摘20Na decays with a half life of 0.448sand a decay energy of 13.9 MeV,to the daughter nucleus 20Ne.The spin and parity of the ground state of 20Na is 2+and the isospin T=1,its decay mainly proceeds through the transitions to the 1+,2+ and 3+ states in 20Ne with T=0or 1.The resonance states in 20Ne | WANG Youbao HAN Zhiyu SU Jun GUO Bing LI Xinyue LI Yunju LI Zhihong LIAN Gang MA Tianli SHEN Yangping SU Yi YAN Shengquan ZENG Sheng ZHOU Chao CUI Baoqun LIU Weiping | 2017 | Annual Report of China Institute of Atomic Energy2017，，1： | 0 |
| 20 | 2-12 Fusion Cross Section of 13C + 12C at Sub-barrier Energies显示文摘Heavy-ion fusion reactions between light nuclei such as carbon and oxygen isotopes have been studied becauseof their importance in a wide variety of stellar burning scenarios. However, due to extremely low cross sectionsand signal/background ratio, all the measurements could only be carried out at energies well above the regionof astrophysical interest. The reaction rates in stellar environment could be estimated only by extrapolating theexisted cross sections or the astrophysical S-factors at higher energies. The situation is even more complicated bythe strong, relatively narrow resonances in some reactions, such as 12C+12C, 12C+16O. Traditionally, optical modelor equivalent square-well optical model (ESW) were used to fit the average cross section and predict the reactioncross sections at the energies of astrophysical interest[1]. Recently, a new model, the hindrance model, was proposedto provide systematic fits to fusion reaction data at extreme sub-barrier energies[2]. Lacking of experimental datawithin this energy range, large discrepancies exist among different nuclear reaction models. | Zhang Ningtao D. Chesneanu Li Yunju M. Straticiuc Tang Xiaodong L. Trache D. G. Ghita I. Burducea R. Margineanu A. Pantelica C. Gomoiu | 2014 | IMP & HIRFL Annual Report2014，，1： | 0 |
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