Zhiwei Li, Sidao Ni, S. W. Roecker, Feng Bao, Xing Wei, David A. Yuen,
... works by this author on: GSW Google Scholar Sidao Ni; Sidao Ni aState Key Laboratory of Geodesy and Earth' ... Street, Wuhan 430077, China, zwli@whigg.ac.cn Sidao Ni aState Key Laboratory of Geodesy and Earth' ... Tools Get Permissions Search Site Citation Zhiwei Li, Sidao Ni, Steven Roecker, Feng Bao, Xing Wei, David ...
Tópico(s): Earthquake Detection and Analysis
2018 - Seismological Society of America | Bulletin of the Seismological Society of America
Xiaohui He, Sidao Ni, Lingling Ye, Thorne Lay, Qiaoxia Liu, Keith D. Koper,
... works by this author on: GSW Google Scholar Sidao Ni; Sidao Ni bState Key Laboratory of Geodesy and Earth' ... mail.ustc.edu.cnliuqx083@mail.ustc.edu.cn Sidao Ni bState Key Laboratory of Geodesy and Earth' ... Tools Get Permissions Search Site Citation Xiaohui He, Sidao Ni, Lingling Ye, Thorne Lay, Qiaoxia Liu, Keith ...
Tópico(s): Earthquake Detection and Analysis
2015 - Seismological Society of America | Seismological Research Letters
Han‐Xiong Li, Xiangfang Zeng, Changsheng Jiang, Sidao Ni, Haijiang Zhang, F. Long,
... works by this author on: GSW Google Scholar Sidao Ni; Sidao Ni cState Key Laboratory of Geodesy and Earth' ... China Earthquake Administration, Beijing 100081, Chinachinakkmm@gmail.com Sidao Ni cState Key Laboratory of Geodesy and Earth' ... Site Citation Libo Han, Xiangfang Zeng, Changsheng Jiang, Sidao Ni, Haijiang Zhang, Feng Long; Focal Mechanisms of ...
Tópico(s): Earthquake Detection and Analysis
2014 - Seismological Society of America | Seismological Research Letters
Sidao Ni, Zhiwei Li, Paul Somerville,
... Radial to Vertical Ratio of Local P Waves Sidao Ni; Sidao Ni aState Key Laboratory of Geodesy and Earth' ... on: GSW Google Scholar Author and Article Information Sidao Ni aState Key Laboratory of Geodesy and Earth' ... Tools Icon Tools Get Permissions Search Site Citation Sidao Ni, Zhiwei Li, Paul Somerville; Estimating Subsurface Shear ...
Tópico(s): High-pressure geophysics and materials
2014 - Seismological Society of America | Seismological Research Letters
Aizhi Guo, Yu‐Zhong Wang, Zhiwei Li, Sidao Ni, Wenfeng Wu, Gang Liu, Yong Zheng, M. Simons,
... works by this author on: GSW Google Scholar Sidao Ni; Sidao Ni aState Key Laboratory of Geodesy and Earth' ... of Sciences, Wuhan 430077, Chinaywang@whigg.ac.cn Sidao Ni aState Key Laboratory of Geodesy and Earth' ... Site Citation Aizhi Guo, Yong Wang, Zhiwei Li, Sidao Ni, Wenbo Wu, Genyou Liu, Yong Zheng, Mark ...
Tópico(s): GNSS positioning and interference
2013 - Seismological Society of America | Seismological Research Letters
Young‐Hee Kim, Xiaohui He, Sidao Ni, Hobin Lim, Sun‐Cheon Park,
... works by this author on: GSW Google Scholar SiDao Ni; SiDao Ni cCAS State Key Laboratory of Geodesy and ... Permissions Search Site Citation YoungHee Kim, XiaoHui He, SiDao Ni, Hobin Lim, Sun‐Cheon Park; Earthquake Source ...
Tópico(s): Seismology and Earthquake Studies
2017 - Seismological Society of America | Bulletin of the Seismological Society of America
Weiwen Chen, Sidao Ni, H. Kanamori, Shengji Wei, Zhe Jia, Lupei Zhu,
... works by this author on: GSW Google Scholar Sidao Ni; Sidao Ni bState Key Laboratory of Geodesy and Earth' ... Tools Get Permissions Search Site Citation Weiwen Chen, Sidao Ni, Hiroo Kanamori, Shengji Wei, Zhe Jia, Lupei ...
Tópico(s): Earthquake Detection and Analysis
2015 - Seismological Society of America | Seismological Research Letters
Zhiwei Li, Sidao Ni, Paul Somerville,
... works by this author on: GSW Google Scholar Sidao Ni; Sidao Ni aState Key Laboratory of Geodesy and Earth' ... Tools Get Permissions Search Site Citation Zhiwei Li, Sidao Ni, Paul Somerville; Resolving Shallow Shear‐Wave Velocity ...
Tópico(s): earthquake and tectonic studies
2014 - Seismological Society of America | Bulletin of the Seismological Society of America
Sidao Ni, D. V. Helmberger, Arben Pitarka,
... 2010 Rapid Source Estimation from Global Calibrated Paths Sidao Ni; Sidao Ni URS Corporation 566 El Dorado Street Pasadena, ... Tools Icon Tools Get Permissions Search Site Citation Sidao Ni, Don Helmberger, Arben Pitarka; Rapid Source Estimation ...
Tópico(s): earthquake and tectonic studies
2010 - Seismological Society of America | Seismological Research Letters
Xiaobiao Zhu, Dayun Sun, Bao-shan CHENG, Delin Hong,
... were investigated in three combinations of japonica rice (Sidao 10A/Wuyujing 3R, Wuyujing 3A/Sidao 10R and Liuyan 189A/HR-122), and genetic ... of leaf pubescences in the reciprocal combinations of Sidao 10A/Wuyujing 3R and Wuyujing 3A/Sidao 10R and numbers of hull pubescences in all ...
Tópico(s): GABA and Rice Research
2008 - Elsevier BV | Rice Science
Haowen Yang, Zhu Chen, Xiaobao Cao, Zhiyang Li, Stavros Stavrakis, Jaebum Choo, Andrew J. deMello, Philip D. Howes, Nongyue He,
... describe an integrated sample-in-digital-answer-out (SIDAO) diagnostic system incorporating DNA extraction and digital recombinase ... and demonstrate excellent analytical accuracy and specificity. This SIDAO system provides a promising diagnostic platform for quantitative ...
Tópico(s): Microfluidic and Capillary Electrophoresis Applications
2018 - Springer Science+Business Media | Analytical and Bioanalytical Chemistry
... the Kyushu Island, Japan” by Xiangfang Zeng and Sidao Ni (Geophysical Research Letters, 37, L24307, doi:10. ...
Tópico(s): Earthquake Detection and Analysis
2011 - American Geophysical Union | Geophysical Research Letters
Xiaohui He, Peizhen Zhang, Sidao Ni, Wenjun Zheng,
... works by this author on: GSW Google Scholar Sidao Ni; Sidao Ni bState Key Laboratory of Geodesy and Earth' ... Permissions Search Site Citation Xiaohui He, Peizhen Zhang, Sidao Ni, Wenjun Zheng; Resolving Focal Depth in Sparse ...
Tópico(s): Seismic Waves and Analysis
2019 - Seismological Society of America | Bulletin of the Seismological Society of America
... works by this author on: GSW Google Scholar Sidao Ni Sidao Ni aState Key Laboratory of Geodesy and Earth' ... Road, Wuhan 430077, China, sdni@whigg.ac.cn Sidao Ni aState Key Laboratory of Geodesy and Earth' ... Tools Get Permissions Search Site Citation Jun Xie, Sidao Ni; Imaging 3D Upper‐Mantle Structure with Autocorrelation ...
Tópico(s): Seismic Imaging and Inversion Techniques
2019 - Seismological Society of America | Seismological Research Letters
Wenzhong Wang, Yinhan Xu, Daoyuan Sun, Sidao Ni, Renata M. Wentzcovitch, Zhongqing Wu,
Abstract Seismic heterogeneities detected in the lower mantle were proposed to be related to subducted oceanic crust. However, the velocity and density of subducted oceanic crust at lower-mantle conditions remain unknown. Here, we report ab initio results for the elastic properties of calcium ferrite‐type phases and determine the velocities and density of oceanic crust along different mantle geotherms. We find that the subducted oceanic crust shows a large negative shear velocity anomaly at the ...
Tópico(s): earthquake and tectonic studies
2020 - Nature Portfolio | Nature Communications
Wei Li, Sidao Ni, Chong Zang, Risheng Chu,
ABSTRACT On 17 June 2019, an ML 6.0 earthquake struck the Changning county in Sichuan Province of China, causing substantial casualties and property losses. The earthquake is the largest and the most damaging event in the Changning area and close to shale gas and salt mining production region. To investigate the possibility of the earthquake being induced, we resolve its rupture dimension and hypocentral depth via modeling of local seismic waveforms. The result reveals that its hypocentral depth ...
Tópico(s): High-pressure geophysics and materials
2020 - Seismological Society of America | Bulletin of the Seismological Society of America
Minhan Sheng, Risheng Chu, Sidao Ni, Yong Wang, Liming Jiang, Hongfeng Yang,
Abstract On 7 September 2019, an M L 5.4 earthquake struck the Weiyuan area in southwestern China. This is the largest and most damaging event in the Weiyuan shale gas field. In the next 4 months, two earthquakes with M L 4.3 and M L 5.2 rattled the same area. In this study, we obtain source parameters of these earthquakes (e.g., centroid location, focal mechanism, and rupture directivity) to investigate whether they are induced by hydraulic fracturing of shale gas production. We first invert for ...
Tópico(s): High-pressure geophysics and materials
2020 - Wiley | Journal of Geophysical Research Solid Earth
Wenbo Wu, Zhongwen Zhan, Shirui Peng, Sidao Ni, Jörn Callies,
Hearing the heat Most of the excess heat that causes global warming is absorbed by the oceans. Quantifying that heat increase is challenging because it requires many different temperature measurements over both the vertical and horizontal extent of the oceans. Wu et al. report success in this effort through the use of a different method: They inferred temperature changes from sound waves generated by repeating earthquakes (see the Perspective by Wunsch). The travel time of these earthquakes from ...
Tópico(s): Geophysics and Gravity Measurements
2020 - American Association for the Advancement of Science | Science
Lihui Zhou, Yan Lu, Yadong Zhang, Changquan Zhang, Ling Zhao, Shu Yao, Xuchao Sun, Tao Chen, Zhen Zhu, Zhao QingYong, Chunfang Zhao, Wenhua Liang, Kai Lü, Cailin Wang, Qiaoquan Liu,
... WY27) and Yangeng 13 (YG13), while the variety Sidao 785 (SD785) displayed the opposite trend. We propose ...
Tópico(s): Rice Cultivation and Yield Improvement
2020 - Elsevier BV | Journal of Cereal Science
Wenbo Wu, Sidao Ni, J. C. E. Irving,
Inferring blocked mantle convection The boundaries between rocks with different physical properties in Earth's interior come from either a change in crystal structure or a change in chemical composition. Wu et al. examined the roughness of the boundary between Earth's upper and lower mantle, thought to form from a change in mineral structure (see the Perspective by Houser). To their surprise, in some locations, the boundary has small-scale roughness that requires some chemical difference above and ...
Tópico(s): earthquake and tectonic studies
2019 - American Association for the Advancement of Science | Science
Yunyi Qian, Shengji Wei, Wenbo Wu, Hongyu Zeng, Aurélie Coudurier‐Curveur, Sidao Ni,
Abstract The complex near trench velocity structures, characterized by strongly varying bathymetry along with seawater, can produce substantial waveform complexities for near trench earthquakes, which makes it difficult to study earthquake source parameters through waveform modeling/inversion. Here we explore these wavefield complexities via modeling teleseismic records of a Mw6.6 near coast event and a Mw6.8 near trench event in the 2015 Illapel earthquake sequence. For the near coast event, the ...
Tópico(s): Seismic Waves and Analysis
2019 - Wiley | Journal of Geophysical Research Solid Earth
Wenbo Wu, Sidao Ni, Zhongwen Zhan, Shengji Wei,
Despite recent advances in High Performance Computing (HPC), numerical simulation of high frequency (e.g. 1 Hz or higher) seismic wave propagation at the global scale is still prohibitive. To overcome this difficulty, we propose a hybrid method to efficiently compute teleseismic waveforms with 3-D source-side structures. By coupling the Spectral Element Method (SEM) with the Direct Solution Method (DSM) based on the representation theorem, we are able to limit the costly SEM simulation to a small source- ...
Tópico(s): Seismic Waves and Analysis
2018 - Oxford University Press | Geophysical Journal International
Xiaowei Chen, Nori Nakata, Colin Pennington, Jackson Haffener, J. C. Chang, Xiaohui He, Zhongwen Zhan, Sidao Ni, J. I. Walter,
Abstract The Pawnee M5.8 earthquake is the largest event in Oklahoma instrument recorded history. It occurred near the edge of active seismic zones, similar to other M5+ earthquakes since 2011. It ruptured a previously unmapped fault and triggered aftershocks along a complex conjugate fault system. With a high-resolution earthquake catalog, we observe propagating foreshocks leading to the mainshock within 0.5 km distance, suggesting existence of precursory aseismic slip. At approximately 100 days ...
Tópico(s): High-pressure geophysics and materials
2017 - Nature Portfolio | Scientific Reports
Adebayo Oluwaseun Ojo, Sidao Ni, Haopeng Chen, Jun Xie,
To understand the depth variation of deformation beneath Cameroon, West Africa, we developed a new 3D model of S-wave isotropic velocity and azimuthal anisotropy from joint analysis of ambient seismic noise and earthquake surface wave dispersion. We found that the Cameroon Volcanic Line (CVL) is well delineated by slow phase velocities in contrast with the neighboring Congo Craton, in agreement with previous studies. Apart from the Congo Craton and the Oubanguides Belt, the uppermost mantle revealed ...
Tópico(s): earthquake and tectonic studies
2017 - Elsevier BV | Physics of The Earth and Planetary Interiors
Yunyi Qian, Sidao Ni, Shengji Wei, Rafael Almeida, Han Zhang,
Teleseismic body waves are essential for imaging rupture processes of large earthquakes. Earthquake source parameters are usually characterized by waveform analyses such as finite fault inversions using only turning (direct) P and SH waves without considering the reflected phases from the core–mantle boundary (CMB). However, core-reflected waves such as ScS usually have amplitudes comparable to direct S waves due to the total reflection from the CMB and might interfere with the S waves used for inversion, ...
Tópico(s): Seismic Imaging and Inversion Techniques
2017 - Oxford University Press | Geophysical Journal International
Jiajun Chong, Risheng Chu, Sidao Ni, Qingjun Meng, Aizhi Guo,
It is known that a receiver function has relatively weak constraint on absolute seismic wave velocity, and that joint inversion of the receiver function with surface wave dispersion has been widely applied to reduce the trade-off of velocity with interface depth. However, some studies indicate that the receiver function itself is capable for determining the absolute shear-wave velocity. In this study, we propose to measure the receiver function HV ratio which takes advantage of the amplitude information ...
Tópico(s): Seismic Imaging and Inversion Techniques
2017 - Oxford University Press | Geophysical Journal International
Yan Lü, Sidao Ni, Ling Chen, Qi‐Fu Chen,
Abstract We proposed a modified Pn velocity and anisotropy tomography method by considering the Moho depth variations using the Crust 1.0 model and obtained high‐resolution images of the uppermost mantle Pn velocity and anisotropy structure from eastern Europe to western China. The tomography results indicate that the average Pn velocities are approximately 8.0 and 8.1 km/s under the western and eastern parts of the study area, respectively, with maximum velocity perturbations of 3%–4%. We observed ...
Tópico(s): Geological and Geochemical Analysis
2017 - Wiley | Journal of Geophysical Research Solid Earth
Xu Yan, Jianxun Liu, Hongjin Wu, Yuna Liu, Sidao Zheng, Chengying Zhang, Yang Cui,
Ginsenoside Rb1 (GS-Rb1) is one of the most important active pharmacological extracts of the Traditional Chinese Medicine ginseng, with extensive evidence of its cardioprotective properties. Mir-208 has been shown to act as a biomarker of acute myocardial infarction in vivo studies including man. However the impact of miR-208 on the protective effect of GS-Rb1 in hypoxia/ischemia injured cardiomyocytes remains unclear. The current study aims to investigate the target gene of miR-208 and the impact ...
Tópico(s): Circular RNAs in diseases
2016 - Karger Publishers | Cellular Physiology and Biochemistry
Adebayo Oluwaseun Ojo, Sidao Ni, Zhiwei Li,
Tópico(s): Seismic Imaging and Inversion Techniques
2016 - Elsevier BV | Tectonophysics
Zhiwei Li, Sidao Ni, Baolong Zhang, Feng Bao, Senqi Zhang, Deng Yang, David A. Yuen,
Abstract The Wudalianchi Volcano Field (WDF) is a typical intraplate volcano in northeast China with generation mechanism not yet well understood. As its last eruption was around 300 years ago, the present risk for volcano eruption is of particular public interest. We have carried out a high‐resolution ambient noise tomography to investigate the location of magma chambers beneath the volcanic cones with a dense seismic array of 43 seismometers and ~ 6 km spatial interval. Significant low‐velocity anomalies ...
Tópico(s): Earthquake Detection and Analysis
2016 - American Geophysical Union | Geophysical Research Letters