Sihua Zheng

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12 [1] We perform ambient noise tomography of China using data from the China National Seismic Network 13 and surrounding global and regional stations. For most of the station pairs, we retrieve good Rayleigh 14 waveforms from ambient noise correlations using 18 months of continuous data at all distance ranges 15 across the entire region (over 5000 km) and(More)
We determine the 3D shear velocity structure of the crust and upper mantle in China using Green's functions obtained from seismic ambient noise cross-correlation. The data we used are from the China National Seismic Network, global and regional network and PASSCAL stations in the region. We first acquire cross-correlation seismogram between all possible(More)
Compressional waves that sample the lowermost mantle west of Central America show a rapid change in travel times of up to 4 s over a sampling distance of 300 km and a change in waveforms. The differential travel times of the PKP waves (which traverse Earth's core) correlate remarkably well with predictions for S-wave tomography. Our modeling suggests a(More)
We determine the three-dimensional shear wave velocity structure of the crust and upper mantle in China using Green’'s functions obtained from seismic ambient noise cross-correlation. The data we use are from the China National Seismic Network, global and regional networks and PASSCAL stations in the region. We first acquire cross-correlation seismo-grams(More)
We determine the three-dimensional shear wave velocity structure of the crust and upper mantle in China using Green's functions obtained from seismic ambient noise cross-correlation. The data we use are from the China National Seismic Network, global and regional networks and PASSCAL stations in the region. We first acquire cross-correlation seismograms(More)
We perform ambient noise tomography of China using the data from the China National Seismic Network and surrounding global and PASSCAL stations. The results so far are summarized below. (1) Dispersion measurements and tomography. For most of the station pairs, we retrieve good Rayleigh waveforms from ambient noise correlations using 18-months of continuous(More)
  • Mingxing Zhao, Wei Gao, +5 authors Baoyong Tang
  • 2017
BACKGROUND Ankle sprains occur frequently among young and active people, accounting for almost two million injuries per year. Previous reports suggest that acupressure therapy for acute ankle sprains may shorten the recovery time. OBJECTIVE To evaluate whether acupressure therapy can improve ankle sprain recovery when compared to standard RICE (rest, ice,(More)
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