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| 1 | Inferring the Tree of Life of the order Cypriniformes, the earth's most diverse clade of freshwater fishes: Implications of varied taxon and character sampling显示文摘The phylogenetic relationships of species are fundamental to any biological investigation, including all evolutionary studies. Accurate inferences of sister group relationships provide the researcher with an historical framework within which the attributes or geographic origin of species (or supraspecific groups) evolved. Taken out of this phylogenetic context, interpretations of evolutionary processes or origins, geographic distributions, or speciation rates and mechanisms, are subject to nothing less than a biological experiment without controls. Cypriniformes is the most diverse clade of freshwater fishes with estimates of diversity of nearly 3,500 species. These fishes display an amazing array of morphological, ecological, behavioral, and geographic diversity and offer a tremendous opportunity to enhance our understanding of the biotic and abiotic factors associated with diversification and adaptation to environments. Given the nearly global distribution of these fishes, they serve as an important model group for a plethora of biological investigations, including indicator species for future cli-matic changes. The occurrence of the zebrafish, Danio rerio, in this order makes this clade a critical component in understanding and predicting the relationship between mutagenesis and phenotypic expressions in vertebrates, including humans. With the tremendous diversity in Cypriniformes, our understanding of their phylogenetic relationships has not proceeded at an acceptable rate, despite a plethora of morphological and more recent mo-lecular studies. Most studies are pre-Hennigian in origin or include relatively small numbers of taxa. Given that analyses of small numbers of taxa for molecular characters can be compromised by peculiarities of long-branch attraction and nodal-density effect, it is critical that significant progress in our understanding of the relationships of these important fishes occurs with increasing sampling of species to mitigate these potential problems. The recent Cypriniformes Tree of Life initiative is an effort to achieve this goal with morphological and molecular (mitochondrial and nuclear) data. In this early synthesis of our understanding of the phylogenetic relationships of these fishes, all types of data have contributed historically to improving our understanding, but not all analyses are complementary in taxon sampling, thus precluding direct understanding of the impact of taxon sampling on achieving accurate phylogenetic inferences. However, recent molecular studies do provide some insight and in some instances taxon sampling can be implicated as a variable that can influence sister group relationships. Other instances may also exist but without inclusion of more taxa for both mitochondrial and nuclear genes, one cannot distinguish between inferences being dictated by taxon sampling or the origins of the molecular data. | Richard L. MAYDEN Kevin L. TANG Robert M. WOOD Wei-Jen CHEN Mary K. AGNEW Kevin W. CONWAY Lei YANG Andrew M. SIMONS Henry L. BART Phillip M. HARRIS Junbing LI Xuzhen WANG Kenji SAITOH Shunping HE Huanzhang LIU Yiyu CHEN Mutstmi NISHIDA Masaki MIYA | 2008 | 植物分类学报2008,46,3: | 5 |
| 2 | Design and test of 4ZZ-4A2 full-hydraulic self-propelled jujube harvester显示文摘The cultivated area of jujube in Xinjiang has increased rapidly in recent years.While the jujube harvest by hand has the shortage of high labor intensity,low efficiency and high labor cost,in addition,the harvesting machinery applying to dwarf and dense planting mode of jujubes is unavailable in Xinjiang.The 4ZZ-4A2 based on the full-hydraulic self-propelled jujube harvester was designed to solve the above problems.The harvester was mainly composed of a frame,a vibrating device,a jujube collecting and conveying device,an air separation device,a steering system,a hydraulic system and a jujube suction device and was capable of completing vibration,collection,conveying,cleaning and sundries removal work of jujubes through one step.The jujubes dropped on the ground were picked up at the same time.The AMESim simulation software was adopted to perform simulation analysis on the overall hydraulic system.The results showed that the speed of the vibrating motor was stable at about 650 r/min(the corresponding vibration frequency is 10.83 Hz)with the torque of 80 N·m,the speed of the conveyor motor was stable at 77 r/min with the torque of 77 N·m;the speed of the fan motor was stable at 54 r/min with the torque of 53.6 N·m;the speed of the walking motor fluctuated around 100 r/min with the torque of about 1000 N·m;the hydraulic steering system responded rapidly and could satisfy the actual working requirements of the jujube harvester.The jujube garden test results showed that the harvester could reach to the optimum harvesting effect when running at the speed of 0.5 m/s.Under such speed,the ground jujube picking rate was 45.1%,the tree jujube harvesting rate was 93.2%,the loss rate was 2.9%,and the damage rate was 0.9%.This study can provide theoretical basis and technical support for the jujube harvester. | Wei Fu Zhiyuan Zhang Kai Ding Weibin Cao Za Kan Junbing Pan Yudong Liu | 2018 | International Journal of Agricultural and Biological Engineering2018,11,4: | 4 |
| 3 | Elastic Scattering of 7Be on Pb Target显示文摘 | Yang Yanyun Wang Jiansong Wang Qi Huang Meirong Ma Junbing Ma Peng Cao Xiguang Han Jianlong Bai Zhen Jin Shilong Hu Qiang Jin Lei Chen Jiangbo Zhang Xueying Chen Ruofu Hu Zhengguo Xu Shiwei Zhen Chuan Xu Zhiguo Xu Hushan Duan Liming Sun Zhiyu Chen Zhiqiang He Jianjun Li Songlin Lei Xiangguo Fu Fen Zhang Xueheng Yuan Xiaohua Du Chengming Yan Xinshuang Hu Jun Tang Shuwen Ye Ruiping Yang Kun Shi Fudong Zhang Wei Chen Ze Li Long Xu Xing Liu Longxiang Zhang Liyong Lin Qingyun Gou Boxing Xu Ge Zhou Xionghong Zhang Yuhu Xiao Guoqing | 2011 | IMP & HIRFL Annual Report2011,,1: | 4 |
| 4 | Fac- ile methods to coat polystyrene and silica colloids with metal 显示文摘 | Zhang Jianghui Liu Junbing Wang Sizeng | 2004 | Advanced Functional Materials2004,14,11: | 1 |
| 5 | β-decay Study of Tz=-3/2Proton-rich Nucleus 29S显示文摘The exotic decay of nuclei far from the stability has recently become a hot topic of nuclear structure research.The nuclide 29S is not well investigated in the A=4n+1,Tz=-3/2series of strong+β-delayed proton precursors.The decay schemes of these nuclei are characterized | ZHONG Fupeng XU Xinxing LIN Chengjian WANG Jiansong LI Zhihuan YANG Lei MA Nanru WANG Dongxi WEN Peiwei SUN Lijie WU Hongyi LUO Diwen WU Chenguang JIANG Ying LIU Yang ZANG Hongliang LIANG Pengfei LI Pengjie LI Xiaojing ZHAO Qingqing SHI Guozhu MA Junbing MA Peng YU Gongming Dipikap Patel BAI Zhen YANG Feng JIA Huiming ZHANG Huanqiao WANG Jianguo YANG Yanyun MA Weihu HU Qiang JIN Shuya ZHOU Xiaohong LI Ren HOU Dongsheng LIU Minliang HU Zhengguo MA Xinwen YANG Weiqing GAO Zhihao DUAN Fangfang YU Yuechao WANG Yufeng WANG Peng ZHOU Qingwu CUI Danteng WANG Xiang HU Liyuan PAN Min ZHANG Gaolong WANG Xiaoyu | 2017 | Annual Report of China Institute of Atomic Energy2017,,1: | 0 |
| 6 | 2 - 30 Progress in Analyzing RIBLL1 17F+p Experimental Data显示文摘 | He Jianjun Hu Jun Xu Shiwei Chen Zhiqiang Zhang Xueying Wang Jiansong Yu Xiangqing Li Long Zhang Liyong Yang Yanyun Ma Peng Wang Hongwei Tian Wendong Zhang Xueheng Su Jun Li Ertao Hu Zhengguo Guo Zhongyan Xu Xing Yuan Xiaohua Lu Wan Lei Xiangguo Yu Yuhong Tang Shuwen Ye Ruiping Chen Jinda Jin Shilun Du Chengming Wang Shitao Ma Junbing Liu Longxiang Bai Zhen Sun Zhiyu Li Xiangqing Zhang Yuhu Zhou Xiaohong Xu Hushan | 2010 | IMP & HIRFL Annual Report2010,,1: | 0 |
| 7 | 2-18 Research Progress in the Exotic Nuclei Group显示文摘In order to study short-lived isotopes with submilisecond half-life and very low recoil energy, some technicalimprovements were made: (1) A VME data acquisition system was introduced to replace the old CAMMAC system.This allows to study isotopes with half-life down to 10 s. (2) Electrical isolation and filtering were introduced,the front end electronic noises have been reduced from 8 MeV down to 2 MeV and the 16 kHz noise producedby the engine of the rotating target system has been removed. (3) A cooling system for the energy degrader wasinstalled and the degrader can be cooled to 0?C. | Liu Zhong Huang Tianheng Ding Bing Sun Mingdao Ma Junbing | 2014 | IMP & HIRFL Annual Report2014,,1: | 0 |
| 8 | Differentiation of Algal Blooms and Aquatic Vegetation in Chinese Lakes Using Modified Vegetation Presence Frequency Index Method显示文摘Algal blooms in lakes have become a common global environmental problem. Nowadays, remote sensing is widely used to monitor algal blooms in lakes due to the macroscopic, fast, real-time characteristics. However, it is often difficult to distinguish between algal blooms and aquatic vegetation due to their similar spectral characteristics. In this paper, we used modified vegetation presence frequency index(VPF) based on Moderate-resolution Imaging Spectroradiometer(MODIS) imagery to distinguish algal blooms from aquatic vegetation, and analyzed the spatial and temporal variations of algal blooms and aquatic vegetation from a phenological perspective for five large natural lakes with frequent algal bloom outbreaks in China from 2019 to 2020. We simplified the VPF method to make it with a higher spatial transferability so that it could be applied to other lakes in different climatic zones. Through accuracy validation, we found that the modified VPF method can effectively distinguish between algal blooms and aquatic vegetation, and the results vary from lake to lake. The highest accuracy of 97% was achieved in Hulun Lake, where the frequency of algal outbreaks is low and the extent of aquatic vegetation is stable, while the lowest accuracy of 76% was achieved in Dianchi Lake, which is rainy in summer and the lake is small. Analyses suggests that the time period when algal blooms occur most frequently might not coincide with that when they have the largest area. However, in most cases these two are close in terms of time period. The modified VPF method has a broad scope of application, is easy to implement, and has a high practical value. Furthermore, the method could be established using only a small amount of measured data, which is useful for water quality monitoring on large spatial scales. | PU Jing SONG Kaishan LIU Ge WEN Zhidan FANG Chong HOU Junbing LV Yunfeng | 2022 | Chinese Geographical Science2022,32,5: | 0 |
| 9 | 通过^(1)H(^(15)O,p)^(15)O弹性散射来研究^(16)F的能级性质显示文摘The understanding of open quantum systems in unbound nuclei is a challenge to the nuclear structure research[1].The continuum coupling effect may lead to a reordering of the shells in such systems[2].A way to study this effect is to compare the level schemes of two mirror nuclei involving an unbound and a bound nucleus such as 16F and 16N[3].Here we report an experiment of studying the level properties of 16F using the resonant elastic scattering with an 15O radioactive beam delivered by the Radioactive Ion Beam Line at Lanzhou(RIBLL)[4]. | Ru Longhui Hu Jun Liu Enqiang Bai Zhen Duan Fangfang Fang Xiao Hou Suqing Hu Qiang Ji Liancheng Jin Shuya Li Kuoang Li Yiyang Li Ruojie Ma Peng Ma Junbing Sun Xinxin Shi Guozhu Tang Xiaodong Wang Xinyu Wang Jiansong Wang Yufeng Wu Jiatong Xu Xiaodong Xu Shiwei Xin Wenyu Yang Kaiping Yang Yanyun NMichel | 2018 | IMP & HIRFL Annual Report2018,,1: | 0 |
| 10 | 2018年重离子核反应组研究进展显示文摘Heavy Ion Reaction Group is in charge of the operation and maintenance of the 1st Radioactive Ion Beam Line in Lanzhou(RIBLL1).Their research works are focused on the direct reactions induced by radioactive ion beams,nuclear reaction dynamics at Fermi energy and some international collaborations.The progress achieved in 2018 are as the following. | Wang Jiansong Yang Yanyun Ma Peng Ma Junbing Liu Xingquan Bai Zhen Hu Qiang Jin Shilun Yu Gongming DPatel Duan Fangfang | 2018 | IMP & HIRFL Annual Report2018,,1: | 0 |
| 11 | Experimental Study of the Elastic Scattering and Breakup Reactions of Proton Drip-line Nucleus^(8)B on^(208)Pb at energies around Four Times of Coulomb Barrier显示文摘First measurement of the angular distribution of breakup reaction for^(8)B on a^(208)Pb target at an energy around four times of Coulomb barrier was carried out at the National Laboratory of Heavy Ion Research of Institute of Modern Physics. | Wang Kang Yang Yanyun Duan Fangfang Pang Danyang Wang Jiansong Gao Zhihao Ma Peng Xu Shiwei Liu Xingquan Ma Junbing Bai Zhen Hu Qiang Jin Shuya Sun Zhiyu | 2019 | IMP & HIRFL Annual Report2019,,1: | 0 |
| 12 | Experimental Study of the Elastic Scattering of^(10)Be on^(208)Pb at the Energy around Three Times of the Coulomb Barrier显示文摘Elastic scattering is the simplest nuclear process and has been widely used to investigate the structure of the interacting nuclei[1,2]. | Duan Fangfang Yang Yanyun Pang Danyang Hu Bitao Wang Jiansong Wang Kang Yang Guo Valdir Guimaraes Ma Peng Xu Shiwei Liu Xingquan Ma Junbing Bai Zhen Hu Qiang Shu Jinya Sun Xinxin Yao Jiasheng Qi Hangkai Sun Zhiyu | 2019 | IMP & HIRFL Annual Report2019,,1: | 0 |
| 13 | 重离子核反应组研究进展显示文摘The Heavy Ion Reaction Group at IMP has been working in the fields of elastic scattering,breakup reaction and three-body forces both experimentally and theoretically.The progresses of the researches in 2017 are given briefly as follows.Four different experiments employing around 500 h beam-time were carried out at the RIBLL1.The users are from Hongkong University,China Institute of Atomic Energy,National Space Science Center and Institute of Modern Physics.The aims of these experiments were to study the elastic scattering,breakup of neutron-rich nucleus 11Be,and proton decay of ^(26)P,^(27)S,^(23)Si and ^(22)Al. | Wang Jiansong Yang Yanyun Ma Peng Ma Junbing Liu Xingquan Hu Qiang Bai Zhen Yu Gongming D.Patel Duan Fangfang Gao Zhihao Yu Yuechao Ma Weihu | 2017 | IMP & HIRFL Annual Report2017,,1: | 0 |
| 14 | 高于库仑位垒能区的^(11)Be+^(208)Pb的弹性散射和破裂反应测量显示文摘Our previous experimental result for proton-rich nucleus ^(8)B at above the Coulomb barrier shows that in spite of its low proton separation energy(0.136 MeV)there is no strong breakup coupling effects[1].The fact is in contrast to the observation of neutron-rich nuclei ^(11)Be around the Coulomb barrier.A systematic study for elastic scattering cross sections of neutron-rich nucleus ^(11)Be and the proton-halo nucleus ^(8)B at low and higher energies shows that the Coulomb rainbow in the elastic scattering of ^(11)Be is still strongly suppressed at high energies[2].In order to examine the predictions,experimental measurements for 11Be elastic scattering and breakup for ^(11)Be+^(208)Pb system at 141 and 209 MeV were performed at the National Laboratory of Heavy Ion Research of the Institute of Modern Physics,Lanzhou,China. | Yang Yanyun Wang Jiansong Liu Xingquan Duan Fangfang Gao Zhihao DPatel Ma Peng Ma Junbing Bai Zhen Hu Qiang Yu Yuechao Yu Gongming Ma Weihu | 2017 | IMP & HIRFL Annual Report2017,,1: | 0 |
| 15 | 用于放射性束物理实验的探测硅阵列的研制显示文摘With the development of radioactive beam facilities,several exciting results were provided concerning the understanding of fundamental nuclear physics.However,typical-beam intensities are always low and the production is often in very small quantities,so,new generation detectors need to be developed with large solid angle and angular coverage,which can identify particle effectively as well as possesses high energy resolution,high spatial resolution and high geometric efficiency.The new detector based on Double Side Silicon Strip Detector(DSSD)is foreseen for the study of the reaction production in the experiment of direct nuclear reaction above the Coulomb barrier using RIBLL[1,2]at the HIRFL[3,4].However,the disadvantage of the RIBs is that it has a broad distribution in coordinate spaces.Therefore,new detector system with high resolution and a large solid angle was developed successfully for performing nuclear reaction experiments using RIBs.The geometric efficiency of the new detector array with 5 large area DSSD telescopes increases up to 70%. | Duan Fangfang Yang Yanyun Gao Zhihao Liu Xingquan Ma Peng Wang Jiansong Bai Zhen Ma Junbing Hu Qiang Jin Shilun Jin Shuya Yu Gongming | 2017 | IMP & HIRFL Annual Report2017,,1: | 0 |
| 16 | β-decay study of neutron-rich nucleus ^(34)Al显示文摘The'island of inversion'has been known for over a quarter century,since Warburton et al.[1]proposed that nuclei with intruder ground states would constitute a 3×3 square with Z=10-12,N=20-22 in 1990.Uncovering the underlying inversion mechanism and exploring the scope of the island have attracted significant theoretical and experimental efforts in the following years.Now it is well known that the reduction of N=20 shell gap,which is likely caused by the | Rui Han XiangQing Li WeiGuang Jiang ZhiHuan Li Hui Hua ShuangQuan Zhang CenXi Yuan DongXing Jiang YanLin Ye Jing Li ZongHao Li FuRong Xu QiBo Chen Jie Meng JianSong Wang Chuan Xu YeLei Sun ChunGuang Wang HongYi Wu ChenYang Niu ChenGuang Li Chao He Wei Jiang PengJie Li HongLiang Zang Jun Feng SiDong Chen Qiang Liu XiaoChi Chen HuShan Xu ZhengGuo Hu YanYun Yang Peng Ma JunBing Ma ShiLun Jin Zhen Bai MeiRong Huang Yuan Jie Zhou WeiHu Ma Yong Li XiaoHong Zhou YuHu Zhang GuoQing Xiao WenLong Zhan | 2017 | Science China(Physics,Mechanics & Astronomy)2017,60,4: | 0 |
| 17 | 2-16 Experimental Study of 13N(α,p)16O at the Stellar Energies显示文摘The presolar SiC grains[1]carry the original stellar nucleosynthesis signature.Their isotopic anomalies compared to the sun are the strong constrains in the supernovae(SN)model calculations.The 15N-excess in some SiC-AB grains(12C/13C<10 and 14N/15N<272)is one of the challenges of core-collapse supernovae(CCSNe)models[2].Recently,Pignatari pointed out that the entrainment of H-rich material into the He shell before the SN explosion allows the coproduction of 13C,15N and 26Al,which provides a new production scenario for SiC-AB grains[2].In the He shell nucleosynthesis,the 13C is produced through 12C(p,γ)13N(β+γ)13C reaction.The 14N is synthesized through 13N(n,γ)and 13C(p,γ)reactions. | Lin Weiping Ma Shaobo Hu Jun Bai Zhen Chen Han Chen Zhijun Duan Fangfang Gao Bingshui Gao Zhihao Hou Suqing Ji Liancheng Jia Baolu Jiao Lei Jin ShuYa Liu Xingquan Li Kuoang Lu Tan Ma Junbing Ma Peng Tang Xiaodong Wang Xinyu Xu Shiwei Yang Yanyun Yu Gongming Yu Xiangqing Zhai Yaojie Zhang Ningtao Zhang Xing | 2016 | IMP & HIRFL Annual Report2016,,1: | 0 |
| 18 | 2-24 Research Progress of Heavy Ion Reaction Group显示文摘In 2016,the environment of the power supply of RIBLL1 is improved by building a closed space with air condition.It will be good for the magnetic stability which is directly affected by the stability of the power supply.There are 9 experiments,more than 1 165.5 h beam-time,carried out at the RIBLL1.The users are from Peking University,China Institute of Atomic Energy,Shanghai Institute of Applied Physics,National Space Science Center,Institute of High Energy Physics and Institute of Modern Physics. | Wang Jiansong Yang Yanyun Ma Peng Jin Shilun Ma Junbing Liu Xingquan Bai Zhen Ma Weihu Wang Qi Hu Qiang Yu Gongming D.Patel Gao Zhihao Duan Fangfang Zhang Xing Jiao Lei Yu Yuechao | 2016 | IMP & HIRFL Annual Report2016,,1: | 0 |
| 19 | 2-26 Experimental Measurement of 12N,13O on natPb Elastic Scattering Above the Coulomb Barriers显示文摘Elastic scattering is an ideal tool to study the information of the exotic structure and reaction mechanism of the weakly bound nuclei.A great deal of elastic scattering experiments have been performed for neutron halo nuclei,such as 6He,11Li and 11Be[1].However,elastic scattering data for proton halo nuclei above the Coulomb barrier are still scarce.13O and 12N,with small separation energies,are good candidates of proton halo nuclei.The 13O and 12N induced elastic scattering is experimentally investigated. | Liu Xingquan Yang Yanyun Wang Jiansong Duan Fangfang Ma Peng Ma Junbing Jin Shilun Bai Zhen Gao Zhihao Hu Qiang Ma Weihu Yu Yuechao Yu Gongming | 2016 | IMP & HIRFL Annual Report2016,,1: | 0 |
| 20 | 2-27 Experimental Measurement of 7Be,8B and 9C on natPb Elastic Scattering Above the Coulomb Barriers显示文摘The experiment was performed at the National Laboratory of Heavy Ion Research of the Institute of Modern Physics,Lanzhou,China.The secondary beams of radioactive isotopes were produced by the fragmentation of the 12C6+primary on a 9Be target with a thickness of 2 652 m[1;2].The secondary beams,7Be,8B and 9C beams were delivered by the Radioactive Ion Beam Line in Lanzhou(RIBLL)[3,4]and impinged on a natPb target at RIBLL Terminal.The energies of the secondary beams,at the physical target,were about three times the Coulomb barriers,130 MeV for 7Be,178 MeV for 8B and 227 MeV for 9C,respectively. | Yang Yanyun Liu Xingquan Wang Jiansong Duan Fangfang Ma Peng Ma Junbing Jin Shilun Bai Zhen Gao Zhihao Hu Qiang Ma Weihu Yu Yuechao Yu Gongming | 2016 | IMP & HIRFL Annual Report2016,,1: | 0 |