A5101852357- Seismic Waves and Analysis
- Seismic Imaging and Inversion Techniques
- earthquake and tectonic studies
- Drilling and Well Engineering
- Seismology and Earthquake Studies
- High-pressure geophysics and materials
- Geophysical Methods and Applications
- Advanced machining processes and optimization
- Underwater Acoustics Research
- Geoscience and Mining Technology
- Manufacturing Process and Optimization
- Reservoir Engineering and Simulation Methods
- Geomechanics and Mining Engineering
- Advanced Fiber Optic Sensors
- Hydraulic Fracturing and Reservoir Analysis
- Injection Molding Process and Properties
- Nanoplatforms for cancer theranostics
- Iterative Learning Control Systems
- Geophysics and Sensor Technology
- Advanced Surface Polishing Techniques
- Environmental remediation with nanomaterials
- Geochemistry and Geochronology of Asian Mineral Deposits
- Thermochemical Biomass Conversion Processes
- Structural Behavior of Reinforced Concrete
- Industrial Gas Emission Control
Xidian University
2025
University of Houston
2022-2024
Gansu Provincial Hospital
2024
Blue Sky Research (United States)
2024
Wuhan University of Science and Technology
2024
South China Agricultural University
2023
Southwest Jiaotong University
2021-2023
Fudan University
2019-2022
State Key Laboratory of Genetic Engineering
2022
Shell (United States)
2006-2021
Abstract Background Early diagnosis of syphilis is vital for its effective control. This study aimed to develop an Artificial Intelligence (AI) diagnostic model based on radiomics technology distinguish early from other clinical skin lesions. Methods The collected 260 images lesions caused by various infections, including 115 and 145 infection types. 80% the dataset was used development with 5-fold cross-validation, remaining 20% as a hold-out test set. exact lesion region manually segmented...
A new book examines how fiber-optic cables installed in boreholes can monitor seismic activity, fluid flow, subsurface temperatures, and more.
新书探讨了安装在井孔中的光纤电缆如何监测地震活动、流体流动、地下温度等。
A new book examines how fiber-optic cables installed in boreholes can monitor seismic activity, fluid flow, subsurface temperatures, and more.
We have acquired and processed 3D vertical seismic profile (VSP) data recorded simultaneously in two wells using distributed acoustic sensing (DAS) during the acquisition of 2012 Mars 4D ocean-bottom survey deepwater Gulf Mexico. The objectives project were to assess quality DAS fiber-optic cables from surface total depth, demonstrate efficacy VSP technology a environment, derisk use for future water injection or production monitoring without intervention, exploit velocity information that...
Characterizing and monitoring geologic formations around a borehole are crucial for energy environmental applications. However, conventional wireline sonic logging usually cannot be used in high-temperature environments nor is the tool feasible long-term monitoring. We introduce evaluate feasibility of source-free distributed-acoustic-sensing (DAS) method based on DAS ambient noise. Our new provides next-generation imaging tool. The source free because it uses ever-present noises as sources...
Coseismic surface deformation associated with the M w 6.1, April 23, 1992, Joshua Tree earthquake is well represented by estimates of geodetic monument displacements at 20 locations independently derived from Global Positioning System and trilateration measurements. The rms signal to noise ratio for these inferred 1.8 near‐fault displacement exceeding 40 mm. In order determine long‐wavelength distribution slip over plane rupture, a Tikhonov regularization operator applied which minimizes...
Summary Shell conducted its first dual-well 3D DAS-VSP survey concurrently with an OBS in a deep water environment the Gulf of Mexico 2012. This produced about 40M picks arrival times (FAT) which were used to diagnose and update velocity models for improvement both borehole surface seismic images subsurface structures. We developed procedure use VSP-FAT derived from surveys monitor updating process. The method was selecting suitable initial model. After travel-time tomography inversion FAT,...
Congenital vertebral malformations (CVMs) manifest with abnormal morphology. Genetic factors have been implicated in CVM pathogenesis, but the underlying pathogenic mechanisms remain unclear most subjects. We previously reported that human 16p11.2 BP4-BP5 deletion and its associated
Split shear wave arrivals are analyzed in seismograms from local earthquakes southern Hawaii recorded at five temporary arrays and one permanent network station. We identify split by their orthogonally polarized pulses, linear particle motions, similar waveforms estimate the delay time for slow arrival ( S 2 ) using a waveform cross‐correlation method. Consistent leading polarizations were measured majority of our stations. Comparison observed predicted confirms that former due to anisotropy...
Abstract Two earthquake doublets and two multiplets recorded by the Charlevoix Telemetered Network (CLTN) in Seismic Zone (CSZ) of southern Quebec, Canada, have been analyzed using an empirical Green's function (EGF) method to derive relative source time functions (RSTF's) seven master events with MbLg = 1.2 4.4. We identified a waveform cross-correlation event location technique verify that each pair had similar focal mechanisms hypocentral locations. Three-component S waveforms high...
Abstract The source-time functions of two microearthquakes with magnitudes 2.1 and 2.3 at Kilauea Volcano, Hawaii, are determined by using the deconvolution technique. P-wave seismograms a smaller event magnitude 1.6 in nearby location treated as empirical Green's deconvolved from waveforms larger earthquakes spectral division. From time-domain analysis functions, some source properties, such complexity directivity, parameters, pulse width, rise time, dimension, determined. With good...
Heterochromatin is essential for genomic integrity and stability in eukaryotes. The mechanisms that regulate meiotic heterochromatin formation remain largely undefined. Here, we show the catalytic subunit (POL2A) of Arabidopsis DNA polymerase epsilon (POL ε) required proper heterochromatin. POL2A N terminus interacts with GHKL adenosine triphosphatase (ATPase) MORC1 (Microrchidia 1), MORC1’s localization on Mutations affecting cause aberrant morphology heterochromatin, which also observed...
Sepsis is one of the leading causes death worldwide. The disease progression sepsis very fast, and there a 7–9% increase in mortality every hour. Therefore, rapid sensitive detection pathogenic bacteria crucial for timely treatment as well reduction mortality. Herein, we present near-infrared (NIR) fluorescence identification magnetic capture based on bioorthogonal nanoprobes multiple whole blood. with NIR fluorescence/magnetic properties were modified dibenzocyclooctyne groups used to...
We have identified seismic phases reflected off the top and bottom of a low velocity layer (LVL) by analysis seismograms from six small earthquakes in Hawaii. These events occurred almost directly beneath station AIN Hawaiian Volcano Observatory (HVO) network, located within Kaoiki zone on southeast flank Mauna Loa. The polarity reversals first provide clear evidence for existence LVL this station. is estimated to be at depth about 11.5 km, with thickness 800 m. consistent distribution...
ABSTRACT Quantifying uncertainties of surface seismic velocity models is a difficult task. The use multifarious vertical profiling data provides quantification model uncertainties. Two borehole diagnosis methods for are developed. first method performed with 3D ray‐traced arrival times through and compared measured from downhole receivers. It generates profile absolute relative misfits, indicating the uncertainty as function depth. second approach directly compares differences between...
Recently, a concrete‐filled steel tube confined with fiber‐reinforced polymer (FRP) has become hot research issue as new type of structure. These studies mainly focus on its static performance and seismic impact behaviour, little blast resistance performance. In this study, the dynamic response columns FRP under loading was investigated. Numerical analysis implemented using multimaterial ALE method in finite element program LS‐DYNA. The proposed numerical model validated by SDOF result...
Titanium (Ti) is generally considered as an ideal bipolar plate (BPP) material because of its excellent corrosion resistance, good machinability and lightweight nature. However, the easy-passivation property, which leads to increased interfacial contact resistance (ICR) subsequently decreased cell performance, limits large-scale commercial application in proton exchange membrane fuel cells (PEMFCs). In this paper, we proposed a NiTi alloy prepared by suction casting promising for PEMFCs....
The hydraulic fracturing technique is an important method for enhancing hydrocarbon recovery, geothermal energy extraction, and solid waste disposal. Determination of the geometry growth process a fracture zone monitoring assessing subsurface fractures. A relative‐source‐location approach, based on waveform correlation grid search method, has been developed to estimate relative hypocenter locations cluster 157 microearthquakes induced by at Los Alamos Hot Dry Rock (HDR) site. Among events,...