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| 1 | Shear-wave splitting beneath Yunnan area of Southwest China显示文摘Systematic analyses of seismic data recorded by the Yunnan regional seismograph network reveal significant crustal and upper mantle anisotropy.Splitting of the S phase of local earthquakes and teleseismic SKS,PKS,and SKKS phases indicates time-delays from 1.60 ms/km to 2.30 ms/km in the crust,and from 0.55 s to 1.65 s in the upper mantle which corresponds to an anisotropic layer with a thickness about between 55-165 km.The polarization orientations of fast shear waves in the crust are complicated with a predominantly north-south direction,and the mantle anisotropy has a nearly west-east direction.Our results show different deformation styles and mechanisms exist between the crust and upper mantle. | Yutao Shi Yuan Gao Youjin Su Qiong Wang | 2012 | Earthquake Science2012,25,1: | 46 |
| 2 | Relocation of the 10 March 2011 Yingjiang,China,earthquake sequence and its tectonic implications显示文摘An earthquake with MS5.8 occurred on 10 March 2011 in Yingjiang county,western Yunnan,China.This earthquake caused 25 deaths and over 250 injuries.In order to better understand the seismotectonics in the region,we collected the arrival time data from the Yunnan seismic observational bulletins during 1 January to 25 March 2011,and precisely hand-picked the arrival times from high-quality seismograms that were recorded by the temporary seismic stations deployed by our Institute of Crustal Dynamics,China Earthquake Administration.Using these arrival times,we relocated all the earthquakes including the Yingjiang mainshock and its aftershocks using the double-difference relocation algorithm.Our results show that the relocated earthquakes dominantly occurred along the ENE direction and formed an upside-down bow-shaped structure in depth.It is also observed that after the Yingjiang mainshock,some aftershocks extended toward the SSE over about 10 km.These results may indicate that the Yingjiang mainshock ruptured a conjugate fault system consisting of the ENE trending Da Yingjiang fault and a SSE trending blind fault.Such structural features could contribute to severely seismic hazards during the moderate-size Yingjiang earthquake. | Jianshe Lei Guangwei Zhang Furen Xie Yuan Li Youjin Su Lifang Liu Honghu Ma Junwei Zhang | 2012 | Earthquake Science2012,25,1: | 35 |
| 3 | S-wave velocity and Poisson's ratio structure of crust in Yunnan and its implication显示文摘Receiver function of body wave under the 23 stations in Yunnan was extracted from 3-component broadband digital recording of teleseismic event. Thus, the S-wave velocity structure and distribution characteristics of Poisson's ratio in crust of Yunnan are obtained by inversion.The results show that the crustal thickness is gradually thinned from north to south. The crustal thickness in Zhongdian of northwest reaches as many as 62.0 km and the one in Jinghong of further south end is only 30.2 km. What should be especially noted is that there exists a Moho upheaval running in NS in the Chuxiong region and a Moho concave is generally parallel to it in Dongchuan. In addition, there exists an obvious transversal inhomogeneity for the S-wave veIocity structure in upper mantle and crust in the Yunnan region. The low velocity layer exists not only in 10.0-15.0 km in upper crust in some regions, but also in 30.0-40.0 km in lower crust.Generally, the Poisson's ratio is on the high side, however it has a better corresponding relation to the crustal velocity structure. An obvious block distribution feature is still shown on such a high background of Poisson's ratio. It is discovered by synthetically analyzing the velocity structure and Poisson's ratio distribution that there are high Poisson's ratio and complicated crust-mantle velocity structure feature in the Sichuan-Yunnan Diamond Block with Xiaojiang fault to be the east boundary and Yulong Snow Mountain fault to be the west boundary besides the frequent seismicity. This feature differs obviously from that of surrounding areas, which would provide geophysical evidence to deeply study the eastwardly flowage of lithospheric substances in the Qinghai-Tibet Plateau. | HU Jiafu, SU Youjin, ZHU Xiongguan & CHEN Yun Geophysical Department of Yunnan University, Kunming 650091, China Seismological Bureau of Yunnan Province, Kunming 650041, China Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100101, China | 2005 | Science China Earth Sciences2005,48,2: | 30 |
| 4 | Imaging 3-D crustal P-wave velocity structure of western Yunnan with bulletin data显示文摘Western Yunnan is a region with intensive tectonic activity and serious earthquake risk.It is of significant importance to study three dimensional crustal structure of this region to understand the tectonic setting and disaster mechanism.Densification and digitalization of seismic networks in this region provides an opportunity to study the velocity structure with bulletin data.In this study,we collect P-wave data of 10 403 regional earthquakes recorded by 79 seismic stations from January 2008 to December 2010.In addition to first arrivals data (Pg with epicentral distance less than 200 km and Pn),the Pg (or P) data with epicentral distance more than 200 km are also considered as later direct arrivals in the tomographic inversion.We also compare the quantity and the quality of the seismic data before 2010 and after 2010.The test results show that adding the follow-up Pg phase can effectively improve the inversion ability of crustal imaging,and quantity and the data quality are significantly improved since 2010.The tomographic results show that:(1) The Honghe fault zone,which is the major fault systems in this region,may cut through the entire crust,and the velocity contrasts between two sides at lower crust beneath the Honghe fault are estimated at higher than 10%,while the velocity difference below Nujiang fault zone extends only in the upper crust;(2) Most of the earthquakes in the region occurred at the interface of high-velocity media and low-velocity media,i.e.,the areas with high velocity gradient,which has been validated in other areas. | Jing Huang Xuejun Liu Youjin Su Baoshan Wang | 2012 | Earthquake Science2012,25,2: | 16 |
| 5 | First mass measurement of short-lived nuclides at HIRFL-CSR显示文摘Recent commissioning of the HIRFL-CSR has demonstrated its ability to perform direct mass measurement for short-lived nuclides. Projectile fragments produced by the 78Kr ions at 481.88 MeV/u were separated with the new radioactive beam line in Lanzhou (RIBLL2), and injected into and stored in the experimental storage ring (CSRe). By operating the CSRe as an isochronous mass spectrometry, a typical mass resolution around 2.0×10?5 has been achieved. The masses for 63Ge, 65As and 67Se were measured for the first time. The measured masses are compared with theoretical predictions and the location of the proton drip-line for As isotopes is discussed. The implication of the 65As mass in the astrophysical rapid proton capture process has also been addressed. | XU HuShan TU XiaoLin YUAN YouJin XIA JiaWen ZANG YongDong WANG Meng MAO RuiShi HU ZhengGuo MEI Bo SHUAI Peng ZHU ZhiChao TANG ShuWen GENG Peng LIU Yong ZHAO TieCheng ZHANG XueYing YANG JianCheng MAO LiJun ZHANG YuHu ZHOU XiaoHong HUANG WenXue XIAO GuoQing ZHAO HongWei ZHAN WenLong | 2009 | Chinese Science Bulletin2009,54,24: | 11 |
| 6 | A high-resolution seismic catalog for the 2021 M_(S)6.4/M_(W)6.1 Yangbi earthquake sequence, Yunnan, China: Application of AI picker and matched filter显示文摘We present a high-resolution seismic catalog for the 2021 M_(S)6.4/M_(W)6.1 Yangbi sequence.The catalog has a time range of 2021-05-01 to 2021-05-28,and contains~8,000 well located events.It captures the features of the whole foreshock sequence and the early aftershocks.We designed a detection strategy incorporating both an artificial intelligent(AI)picker and a matched filter algorithm.Here,we adopt a hybrid AI method incorporating convolutional and recurrent neural network(CNN&RNN)for event detection and phase picking respectively(i.e.CERP),a light-weight AI picker that can be trained with small volume of data.CERP is first trained with detections from a STA/LTA and Kurtosis-based method called PAL,and then construct a rather complete template set of~4,000 events.Finally,the matched filter algorithm MESS augments the initial detections and measures differential travel times with cross-correlation,which finally results in precise relocation.This process gives 9,026 detections,among which 7,943 events can be well relocated.The catalog shows as expected power-law distribution of frequency magnitude and reveals detailed pattern of seismicity evolution.The main features are:(1)the foreshock sequence images simple fault geometry with consistent strike,but also show a variable event depth along strike;(2)the mainshock ruptures the same fault of the foreshock sequence and activate conjugate faults further to the southeast;(3)complex seismicity are developed in the post-seismic period,indicating complex triggering mechanisms.Thus,our catalog provides a reliable basis for further investigations,such as b-value studies,rupture process,and triggering relations. | Yijian Zhou Abhijit Ghosh Lihua Fang Han Yue Shiyong Zhou Youjin Su | 2021 | Earthquake Science2021,34,5: | 6 |
| 7 | Relocation of the Foreshocks and Aftershocks of the 2021 Ms 6.4 Yangbi Earthquake Sequence,Yunnan,China显示文摘An Ms 6.4 earthquake occurred in Yangbi,Yunnan,China on May 21,2021,which has obvious foreshock activity and abundant aftershocks.Based on the seismic observation data recorded by the Yunnan Seismic Network three days before and seven days after the mainshock,a doubledifference location method was used to relocate 2133 earthquakes of the Yangbi sequence.Aftershocks are mostly distributed to the southeast of the mainshock in a unilateral rupture pattern.This sequence exhibits a SE-trending linear alignment with a length of about 25 km,and most of the focal depth is above 12 km.Integrated with the seismic distribution and focal mechanism results,we infer that the strike of the seismogenic fault is about 140°,and dipping to the SW.The fault structure revealed by the seismic sequence is complex,with the NW segment exhibiting a steep dip and relatively simple structure of strike-slip rupture and the SE segment consisting of several branching ruptures.The Yangbi Earthquake is a typical foreshock-mainshock-aftershock sequence,and the mainshock is likely triggered by the largest foreshock.This earthquake occurred in the boundary between high-and lowvelocity anomalous zone,where is susceptible to generate large earthquakes. | Ting Yang Boren Li Lihua Fang Youjin Su Yusheng Zhong Jingqiong Yang Min Qin Yaji Xu | 2022 | Journal of Earth Science2022,33,4: | 5 |
| 8 | The size of cell-free mitochondrial DNA in blood is inversely correlated with tumor burden in cancer patients显示文摘Circulating cell-free DNAs(cfDNAs)are fragmented DNA molecules released into the blood by cells.Previous studies have suggested that mitochondria-originated cfDNA fragments(mt-cfDNAs)in cancer patients are more fragmented than those from healthy controls.However,it is still unknown where these short mtcfDNAs originate,and whether the length of mt-cfDNAs can be correlated with tumor burden and cancer progression.In this study,we first performed whole-genome sequencing analysis(WGS)of cfDNAs from a human tumor cell line-xenotransplantation mouse model and found that mt-cfDNAs released from transplanted tumor cells were shorter than the mouse counterpart.We next analyzed blood cfDNA samples from hepatocellular carcinoma and prostate cancer patients and found that mt-cfDNA lengths were inversely related to tumor size as well as the concentration of circulating tumor DNA.Our study suggested that monitoring the size of mt-cfDNAs in cancer patients would be a useful way to estimate tumor burden and cancer progression. | Qin An Youjin Hu Qingjiao Li Xufeng Chen Jiaoti Huang Matteo Pellegrini Xianghong Jasmine Zhou Matthew Rettig Guoping Fan | 2019 | Precision Clinical Medicine2019,2,3: | 4 |
| 9 | Strong Earthquake Activity and Its Relation to Regional Neotectonic Movement in Sichuan-Yunnan Region显示文摘Based on analyzing space inhomogeneous image of strong earthquake activity, the image of source rupture and the mechanical property of the source fault in Sichuan-Yunnan region, the relations among the strong earthquake activity, active fault, modern movement status of active blocks and structural background of the deep media have been discussed, and the characteristics of strong earthquake activity and possible mechanism have been also discussed. | Su Youjin and Qin Jiazheng Seismological Bureau of Yunnan Province,Kunming 650041,China | 2001 | Earthquake Research in China2001,15,3: | 4 |
| 10 | History-dependent percolation on multiplex networks显示文摘The structure of interconnected systems and its impact on the system dynamics is a much-studied cross-disciplinary topic.Although various critical phenomena have been found in different models;study of the connections between different percolation transitions is still lacking.Here we propose a unified framework to study the origins of the discontinuous transitions of the percolation process on interacting networks.The model evolves in generations with the result of the present percolation depending on the previous state,and thus is history-dependent.Both theoretical analysis and Monte Carlo simulations reveal that the nature of the transition remains the same at firdte generations but exhibits an abrupt change for the infinite generation.We use brain functional correlation and morphological similarity data to show that our model also provides a general method to explore the network structure and can contribute to many practical applications,such as detecting the abnormal structures of human brain networks. | Ming Li Linyuan Lu Youjin Deng Mao-Bin Hu Hao Wang Matus Medo H.Eugene Stanley | 2020 | National Science Review2020,7,8: | 3 |
| 11 | Mating System of Tricholoma giganteum显示文摘Microscopical examination demonstrated that Tricholoma giganteum basidia bear 4 basidiospores. Mating tests revealed that T. giganteum has a tetra-polar, heterothallic mating system. New types of factor B (Br) occurred as a result of recombination within the B-type mating factor. | FU Junsheng CAI Yanshan KE Lina LIN Shaoxia DENG Youjin XIE Baogui | 2007 | 食用菌学报2007,14,3: | 3 |
| 12 | Nuclear uncertainties in the s-process simulation显示文摘The heavy elements in the Universe are formed during the s- and r-processes mainly in AGB stars and supernovae, respectively. Simulation of s- and r-nucleosynthesis critically depends on the neutron capture and weak decay rates for all the nuclei on the reaction chain. The present work analyzes systematically the neutron capture rates (cross sections) for the s-process nuclei, including ~3000 rates on ~200 nuclei. The network calculations for the constant temperature s-process have been performed using the different data sets selected as the nuclear inputs to investigate the uncertainties in the predicted s-abundances. We show that the available cross sections of neutron capture on many s-process nuclei still carry large uncertainties, which lead to low accuracy in the determination of s-process isotope abundances. We analyze the neutron capture cross section data for the same unique isobar nucleus accorded by year from previous work. Such an analysis indicates that the s-process has been studied for more than fifty years and there exist two research stages around 1976 and 2002, respectively. The needs and opportunities for future experiments and theoretical tools are highlighted to remove the existing shortcomings in the neutron capture rates. | ZHANG YouJin CHEN YongShou GUO JianYou HOU SuQing LI ZhiHong SHI JianRong | 2013 | Science China(Physics,Mechanics & Astronomy)2013,56,5: | 2 |
| 13 | Development of a widely targeted volatilomics method for profiling volatilomes in plants显示文摘Volatile organic compounds play essential roles in plant environment interactions as well as determining the fragrance of plants.Although gas chromatography-mass spectrometry-based untargeted metabolo-mics is commonly used to assess plant volatiles,it suffers from high spectral convolution,low detection sensitivity,a limited number of annotated metabolites,and relatively poor reproducibility.Here,we report a widely targeted volatilomics(WTV)method that involves using a“targeted spectra extraction”algorithm to address spectral convolution,constructing a high-coverage MS2 spectral tag library to expand volatile annotation,adapting a multiple reaction monitoring mode to improve sensitivity,and using regression models to adjust for signal drift.The newly developed method was used to profile the volatilome of rice grains.Compared with the untargeted method,the newly developed WTV method shows higher sensitivity(for example,the signal-to-noise ratio of guaicol increased from 4.1 to 18.8),high annotation coverage(the number of annotated volatiles increased from 43 to 132),and better reproducibility(the number of volatiles in quality control samples with relative standard deviation value below 30.0%increased from 14 to 92 after normalization).Using the WTV method,we studied the metabolic responses of tomato to environmental stimuli and profiled the volatilomes of different rice accessions.The results identified benzothiazole as a potential airborne signal priming tomato plants for enhanced defense and 2-nonanone and 2-heptanone as novel aromatic compounds contributing to rice fragrance.These case studies suggest that the widely targeted volatilomics method is more efficient than those currently used and may considerably promote plant volatilomics studies. | Honglun Yuan Guangping Cao Xiaodong Hou Menglan Huang Pengmeng Du Tingting Tan Youjin Zhang Haihong Zhou Xianqing Liu Ling Liu Yiding Jiangfang Yufei Li Zhenhuan Liu Chuanying Fang Liqing Zhao Alisdair R.Fernie Jie Luo | 2022 | Molecular Plant2022,15,1: | 2 |
| 14 | Simultaneous analysis of three-dimensional percolation models显示文摘 | Xiao Xu Junfeng Wang Jian-Ping Lv Youjin Deng | 2014 | Frontiers of physics2014,9,1: | 2 |
| 15 | High-accuracy absolute measurement of the refractive index of air optical显示文摘 | Guangping Xie Youjin Wang Lynn J | 2004 | Engineering2004,4,: | 1 |
| 16 | A non-viral vector for potential DMD gene therapy study by targeting a minidystrophin-GFP fusion gene into the hrDNA locus显示文摘基因治疗为 Duchenne 肌肉发达的营养障碍(DMD ) 的致命的混乱作为一条有希望的途径出现了。用一个新奇非病毒的交货系统,指向向量的人的 ribosomal DNA (hrDNA ) ,我们与 10 的高地点特定的综合效率指向了 minidystrophin-GFP 熔化基因进 HT1080 房间的 hrDNA 地点 ? 5,在里面 transgene 能高效地并且连续地表示它。minidystrophin-GFP 熔化蛋白质容易被发现在 HT1080 房间的血浆膜上本地化,显示它的可能的生理的表演。我们的调查结果证明指向 hrDNA 向量可能为 DMD 基因治疗学习是高度有用的。 | Junlin Yang Xionghao Liu Jiaoling Yu Liang Sheng Yan Shi Zhuo Li Youjin Hu Jinfeng Xu Lingqian Wu Yu Liang Jiahui Xia Desheng Liang | 2009 | Acta Biochimica et Biophysica Sinica2009,41,12: | 1 |
| 17 | Query reformulation using auto- matically generated query concepts from a document space显示文摘 | Chang Youjin Ounis I Kim M | 2006 | In-formation Processing and Management2006,42,2: | 1 |
| 18 | Antimicrobial Effect of Chitooligo-saccharides Produced by Bioreactor显示文摘 | Youjin JEON Pyojam PARK Se-kwon KIM | 2001 | Carbohydrate Polymers2001,44,1: | 1 |
| 19 | Authentication codes based on association schemes显示文摘 | YOUJIN S KUROSAWA K TSUJI S | 1996 | IEICE Transactions on Fundamentals of Electron- ics Communications and Computer Sciences1996,79,1: | 1 |
| 20 | Economic evaluation of coalbed methane production in China 显示文摘 | DONGKUN L YOUJIN D | 2009 | Energy Policy2009,37,: | 1 |