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| 1 | Spatial segmentation characteristic of focal mechanism of aftershock sequence of Wenchuan Earthquake显示文摘Moment tensor solutions of 88 earthquakes were determined by using the broadband waveform data recorded in six stations within 450 km around the Wenchuan Earthquake sequence by means of the time domain moment tensor inversion method.It was found that the type of the focal mechanism solution is characteristic of obvious spatial segmentation.There are six segments along the main rupture zone from southwest to northeast,where initially the focal mechanism is of main thrust type,finally of main right-lateral strike-slip type and between these two areas there is a transition zone characterized in multiple types of focal mechanisms appearing in turn.Earthquakes of left-lateral strike-slip type perpendicular to the main rupture zone occurred near Xiaoyudong Town.The stress field of each segment is inversed by means of the FMSI program,and it was found that,along the main rupture zone from southwest to northeast,the direction of the maximum principal stress is gradually changing from near EW to NW-SE,and finally changing back to near EW. | WANG QinCai CHEN ZhangLi ZHENG SiHua | 2009 | Chinese Science Bulletin2009，54，13： | 20 |
| 2 | Uneven aftershock distribution of Wenchuan Ms8.0 earthquake and possible mechanism显示文摘The aftershock activity of Wenchuan Ms8.0 earthquake showed different spatial and temporal distributions along two different segments of the Longmenshan fault.This difference was likely the result of segmentation of the earthquake rupture process,which in turn may be the result of the fault's segmentation in its long-term geotectonic condition. | Li Zhixiong Chen Zhangli Zhao Cuiping Shao Zhigang Hua Wei Wang Qincai He Ping | 2011 | Geodesy and Geodynamics2011，2，2： | 1 |
| 3 | Effects of Carbon Black Content on Microwave Absorbing and Mechanical Properties of Linear Low Density Polyethylene/Ethylene-Octene Copolymer/Calcium Carbonate Composites显示文摘 | Qincai Ling Jianzhong Sun Qian Zhao Qiyun Zhou | 2011 | Polymer-Plastics Technology and Engineering2011，，1： | 1 |
| 4 | Preparation andcharacterization of visible-light-driven titania photocatalyst co-doped with boron and nitrogen显示文摘 | Ling Qincai Sun Jianzhong Zhou Qiyun | | 0，，10： | 1 |
| 5 | Visible- light-driven titania/silica photocatalyst co-doped with boron and ferrum显示文摘 | Ling Qincai Sun Jianzhong Zhou Qiyun | 2008 | Applied Surface Science2008，254，： | 1 |
| 6 | Effects of plant growth regulators and phenolic compounds on paulownia culture in vitro infected with mycoplasma - like organisms 显示文摘 | Tian Guozhong Yuan Qiaoping Huang Qincai | 1994 | Int J Tropical Plant Diseases1994，12，2： | 1 |
| 7 | Spatiotemporal evolution of the 2021 M_(S)6.4 Yangbi earthquake sequence显示文摘Based on the seismic phase reports of the Yangbi area from January 1 to June 25,2021,and the waveform data of M≥4 earthquakes,we obtained the relocation results and focal mechanism solutions of the M_(S)6.4 Yangbi earthquake sequence using the HypoDD and CAP methods.Based on our results,our main conclusions are as follows:(1)the M_(S)6.4 Yangbi earthquake sequence is a typical foreshock-mainshock-aftershock sequence.The fore-shocks of the first two stages have the obvious fronts of migration and their migration rate increased gradually.There was no apparent front of migration during the third stage,and the occurrence of the mainshock was related to stress triggering from a M5.3 foreshock.We tentatively speculate that the rupture pattern of the Yangbi earthquake sequence conforms to the cascading-rupture model;and(2)the main fault of the M_(S)6.4 Yangbi earthquake sequence is a NW-trending right-lateral strike-slip fault.As time progressed,a minor conjugate aftershock belt formed at the northwest end of this fault,and a dendritic branching structure emerged in the southern fault segment,showing a complex seismogenic fault structure.We suggested that the fault of the Yangbi earthquake sequence may be a young sub-fault of the Weixi-Weishan fault. | Qincai Wang Jinchuan Zhang Zhongping Wang Jun Li Weijun Wang | 2021 | Earthquake Science2021，34，5： | 0 |
| 8 | Seismic analysis of the Xiluodu reservoir area and insights into the geometry of seismogenic faults显示文摘The Xiluodu(XLD)reservoir is the second largest reservoir in China and the largest in the Jinsha River basin.The occurrence of two M>5 earthquakes after reservoir impoundment has aroused great interest among seismologists and plant operators.We comprehensively analyzed the seismicity of the XLD reservoir area using precise earthquake relocation results and focal mechanism solutions and found that the seismicity of this area was weak before impoundment.Following impoundment,earthquake activity increased significantly.The occurrence of M≥3.5 earthquakes within five years of impoundment also appear to be closely related to rapid rises and falls in water level,though this correlation weakened after five years because earthquake activity was far from the reservoir area.Earthquakes in the XLD reservoir area are clustered;near the dam(Area A),small faults are intermittently distributed along the river,while Area B is composed of multiple NW-trending left-lateral strikeslip faults and a thrust fault and Area C is composed of a NW-trending left-lateral strike-slip main fault and a nearly EWtrending right-lateral strike-slip minor fault.The geometries of the deep and the shallow parts of the NW-trending fault differ.Under the action of the NW-trending background stress field,a series of NW-trending left-lateral strike-slip faults and NE-trending thrust faults in critical stress states were dislocated due to the stress caused by reservoir impoundment.The two largest earthquakes in the XLD reservoir area were tectonic earthquakes that were directly triggered by impoundment. | Hongfu Lei Qincai Wang Cuiping Zhao Ce Zhao Jinchuan Zhang Jun Li | 2022 | Earthquake Science2022，35，5： | 0 |
| 9 | c-Ab1以控制蛋白酶体亚基PSMA7通过泛素蛋白酶体降解调节蛋白酶体丰度显示文摘细胞出版社《细胞报告》是2012年推出的开放获取期刊,本刊致力于报道整个生命科学领域的高质量研究成果。与细胞出版社所有其他期刊一样,《细胞报告》审稿标准也是新的生物观点。杂志内部的专业编辑与作者、审稿人、科学编辑委员会保持密切的联系。该杂志2015年公布的影响因子为8.358。 | Dapei Li Qincai Dong Qingping Tao Jing Gu Yan Cui Xuefeng Jiang Jing Yuan Weihua Li Rao Xu Yanwen Jin Ping Li David T.Weaver Qingjun Ma 刘萱 曹诚 | 2016 | 科学新闻2016，0，1： | 0 |
| 10 | Intrinsic and scattering attenuations of the Sichuan-Yunnan region in China from S coda waves显示文摘Seismic attenuation is a fundamental property of the Earth's media.Attenuation structure for the complicated geological structures with strong seismicity in the Sichuan-Yunnan region is poorly studied.In this study,we collected 108,399 waveforms of 11,517 local small earthquakes with magnitudes between 1.5 and 3.5 from January 2014 to September 2021 in the Sichuan-Yunnan region and its adjacent areas.We employed an envelope inversion technique for separating the intrinsic and scattering attenuations of the S coda wave,and obtained the intrinsic and scattering attenuation structures for frequencies between 0.25 and 8.00 Hz.The attenuation structures correlate well with the geological units,and some major faults mark the attenuation variations where historic large earthquakes have occurred.The regional average attenuation shows a negative frequency dependence.The average scattering attenuation has a faster descending rate than the average intrinsic attenuation,and is dominant at low frequencies,while at high frequencies the average intrinsic attenuation is stronger.The lateral variation in the intrinsic attenuation is consistent with the variation in heat flow,the scattering attenuation may be related to the scatter distribution and size.The total attenuation is consistent with the previous studies in this region,and the separate intrinsic and scattering attenuation may be useful in understanding regional tectonics and important in earthquake prevention and disaster reduction. | Tian Li Lei Zhang Xiaodong Song Qincai Wang Xinyu Jiang Jinchuan Zhang Hanlin Chen | 2024 | Earthquake Science2024，37，1： | 0 |
| 11 | Measurement of Earthquake Size显示文摘The paper begins with a brief review of the research history of earthquake size measurement. On this basis,the author pointed out the following points: 1 In recent decades,ML,mb( mB),MSmagnitude scales are widely used as measures of earthquake size. However,these magnitude scales have a deficiency of 'overgeneralization ' and'magnitude saturation'. Moreover,since they do not fully take into account the regional difference of seismic attenuation, especially the difference of site effects on the amplification of ground motion,these magnitude scales are but inaccurate measures of earthquake size. 2 Seismic moment M0 not only has clear physical meaning,but also overcomes the deficiencies existing in ML,mb( mB) and MSmagnitude scales,so it is the most suitable physical quantity for measuring earthquake size scientifically. In order to continue to use the term 'magnitude',Kanamori defined the moment magnitude scaleΔσ. Although its prerequisite assumptions remain to be studied,it is still a reasonable scale used as a measure of the relative size of an earthquake. 3 For measuring the earthquake size more scientifically,we must make full use of a large amount of waveform data from modern regional digital seismograph networks,strengthen the research on seismic wave attenuation characteristics,site effect,calculation of source parameters and the related scaling relations. In improving the measurement methods for ML,mb( mB) and MSmagnitude,we should focus on the improvement of MWscale and carry forward the work as gradually taking MWmagnitude scale as the uniform physical quantity to measure the relative size of earthquakes,so as to lay a more solid foundation for research in earthquake science and earthquake prediction. | Chen Zhangli Chen Hanlin Zhao Cuiping Wang Qincai Hua Wei Zhou Lianqing | 2014 | Earthquake Research in China2014，28，3： | 0 |
| 12 | Monitoring Media Velocity Variations with Coda Wave Interferometry显示文摘Multiply scattered waves are sensitive to media changes owing to the effect of repeated sampling,superposition and amplification. Based on this characteristic,small-medium changes could be detected by using coda wave interferometry. In recent years,coda wave interferometry has been widely used in estimating velocity variation with high precision in areas such as seismology and non-destructive testing. This paper systematically presents the principle and research status of coda wave interferometry,and especial focus is placed on the research of media velocity variations by using repeating earthquakes,artificial sources,and ambient noise. Applications of coda wave interferometry can contribute to the more subtle understanding of dynamic evolution process in the medium. | Zhang Jinchuan Wang Qincai Xue Bing Ding Lisha | 2015 | Earthquake Research in China2015，29，2： | 0 |
| 13 | Highly pathogenic coronavirus N protein aggravates inflammation by MASP-2-mediated lectin complement pathway overactivation显示文摘Excessive inflammatory responses contribute to the pathogenesis and lethality of highly pathogenic human coronaviruses,but the underlying mechanism remains unclear.In this study,the N proteins of highly pathogenic human coronaviruses,including severe acute respiratory syndrome coronavirus(SARS-CoV),middle east respiratory syndrome coronavirus(MERS-CoV)and severe acute respiratory syndrome coronavirus 2(SARS-CoV-2),were found to bind MASP-2,a key serine protease in the lectin pathway of complement activation,resulting in excessive complement activation by potentiating MBL-dependent MASP-2 activation,and the deposition of MASP-2,C4b,activated C3 and C5b-9.Aggravated inflammatory lung injury was observed in mice infected with adenovirus expressing the N protein.Complement hyperactivation was also observed in SARS-CoV-2-infected patients.Either blocking the N protein:MASP-2 interaction,MASP-2 depletion or suppressing complement activation can significantly alleviate N protein-induced complement hyperactivation and lung injury in vitro and in vivo.Altogether,these data suggested that complement suppression may represent a novel therapeutic approach for pneumonia induced by these highly pathogenic coronaviruses. | Ting Gao Lin Zhu Hainan Liu Xiaopeng Zhang Tingting Wang Yangbo Fu Hongzhen Li Qincai Dong Yong Hu Zhang Zhang Jing Jin Zijing Liu Weihong Yang Yaoning Liu Yanwen Jin Kaitong Li Yongjiu Xiao Junli Liu Huailong Zhao Yue Liu Ping Li Jibo Song Lu Zhang Yuwei Gao Sisi Kang Shoudeng Chen Qingjun Ma Xiuwu Bian Wei Chen Xuan Liu Qing Mao Cheng Cao | 2022 | Signal Transduction and Targeted Therapy2022，7，10： | 0 |
| 14 | Discussion on the Relationship between Different Earthquake Magnitude Scales and the Effect of Seismic Station Sites on Magnitude Estimation显示文摘Based on the earthquake catalog reported by the Chinese digital seismic network in recent years,we select the earthquakes with both surface wave magnitude and local magnitude and fit them into a relationship between the two magnitudes.The systematic difference is found from the formula which has been used for 30 years.Because of a large dynamic range and wide frequency range of the current digital observation system,in addition to a larger number of stations and earthquakes being used compared to before,the relation obtained in this paper seems more reliable.Our calculation shows that there is no significant difference before and after magnitude conversion so we suggest the abandonment of magnitude conversion.The site response of a station consists of amplification at different frequencies.The amplification is equal to about 1 and changes little with frequency at stations located on basement rock,and it is greater than 1 at low frequency ranges and less than 1 at high frequency ranges at stations located on sediment layers.The difference between magnitudes from single station located on sediment layer and the average magnitude from the whole network increases from negative to positive with period.It seems that there is no fixed station correction factor and the station correction method does not work to improve the accuracy and magnitude estimates. | Zhang Hongzhi Diao Guiling Zhao Mingchun Wang Qincai Zhang Xiao Huang Yuan | 2008 | Earthquake Research in China2008，22，1： | 0 |
| 15 | Estimation of Site Effects on Stations in the Capital Circle Region Using the Generalized Inversion Method显示文摘Generalized Inversion Method has been used to estimate the spatial variation of site effects,using the digital data of SH-waves recorded by 63 stations in the Capital Circle Region of China from 2001 to 2006.We gained the site effects of all stations participating in the calculation.We found that the site effect of rock was stabile and about 1.0 from 1.0Hz to 10.0Hz,while the site effect of deposit was high in low frequencies,about 3 ~ 7 from 1.0Hz to 8.0Hz,and the site effect was protuberant at about 5.0Hz,then fell as the frequency increased.The result shows the shape and intensity of station site effects are mainly influenced by the lithology below the station,and possibly also by the local geological structure. | Shi Haixia Xiu Jigang Chen Zhangli Wang Qincai Hua Wei | 2010 | Earthquake Research in China2010，24，2： | 0 |
| 16 | The seismogenic structures and migration characteristics of the 2021 Yangbi M6.4 Earthquake sequence in Yunnan,China显示文摘We constructed a more complete earthquake catalog in the 2021 Yangbi M6.4 focal area by re-scanning the continuous waveforms integrated with deep learning and template matching techniques,to explore the seismogenic structures of the Yangbi mainshock and its nucleation process.The new catalog has three times the number of earthquakes than the CENC catalog,and the magnitude completeness has dropped from 1.1 to 0.5.The distribution of earthquakes indicates a broom-shaped structure consisting of several oblique secondary faults and a strike-slip main fault which strikes to 315°with 80°dipping to NE.The earthquakes extend along the fault strike about 27 km in width and 2-13 km at depth and have noticeable variations on seismicity in the mainshock’s north and south.Compared with the north,the south has denser and higher magnitude aftershocks and also has a seismic gap probably weakened by the fluid at the depth range of about 5-6 km.The foreshocks were mainly active in the 8-kilometer-long fault zone south of the mainshock,which show a steady drop in b-values over time and a migration pattern toward the epicenter of two steep jumps,stagnation,and then acceleration which finally triggered the mainshock.While in the north,seldom foreshock occurred,and the aftershocks were delayed triggered 3 hours after the mainshock,and sparsely scattered shallow at depth and small in magnitude.To summarize,the northern part of the Yangbi seismogenic fault is thought to be relatively locked,whereas the southern part has a weakening zone and promotes pre-slip.The nucleation mechanism of the mainshock and its onset at the junction of the locked and pre-slip zones may be a combination of pre-slip and cascade triggering. | Kun YAN Weijun WANG Fei PENG Qincai WANG Huadong KOU Aijing YUAN | 2022 | Science China Earth Sciences2022，65，8： | 0 |
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