A5100431789- Seismic Imaging and Inversion Techniques
- Seismic Waves and Analysis
- Hydraulic Fracturing and Reservoir Analysis
- Drilling and Well Engineering
- Geophysical Methods and Applications
- Hydrocarbon exploration and reservoir analysis
- Geophysical and Geoelectrical Methods
- Ionic liquids properties and applications
- Electrodeposition and Electroless Coatings
- Smart Grid and Power Systems
- Geoscience and Mining Technology
- Advanced MIMO Systems Optimization
- Astronomical Observations and Instrumentation
- Electrochemical Analysis and Applications
- Seismology and Earthquake Studies
- Advanced Wireless Network Optimization
- Inertial Sensor and Navigation
- Electromagnetic wave absorption materials
- Transcranial Magnetic Stimulation Studies
- Medical Imaging Techniques and Applications
- Earthquake Detection and Analysis
- Cooperative Communication and Network Coding
- Electromagnetic Fields and Biological Effects
- Power Systems and Technologies
- Geological formations and processes
Shenyang Ligong University
2008-2025
Shanghai Normal University
2025
Chengdu University of Technology
2014-2024
China Southern Power Grid (China)
2019-2024
Dalian Maritime University
2023
Chinese Academy of Sciences
2007-2022
China National Petroleum Corporation (China)
2014-2022
Technology and Engineering Center for Space Utilization
2022
Institute of Mountain Hazards and Environment
2020
China University of Geosciences (Beijing)
2018-2020
Automatic seismic fault identification for data is essential oil and gas resource exploration. The traditional manual method cannot accommodate the needs of processing massive data. With development artificial intelligence technology, deep learning techniques based on pattern recognition have become a popular research area identification. Despite progress made with U-shaped neural networks (Unet), they still fall short in meeting stringent requirements prediction complex structures. We...
We studied second-order wave propagation systems for vertical transversely isotropic (VTI) and tilted (TTI) acoustic media with variable axes of symmetry that have their shear-wave speeds set to zero. Acoustic TTI are commonly used in reverse-time migration, but these susceptible instablities appearing as nonphysical stationary noise growing linearly time, particularly variable-tilt media. found an explanation the cause this phenomenon. The instabilities not caused only by numerical schemes;...
Abstract To explore the neurobiological heterogeneity within Clinical High-Risk (CHR) for psychosis population, this study aimed to identify and characterize distinct biotypes CHR using features from resting-state functional networks. A total of 239 participants Shanghai At Risk Psychosis (SHARP) program were enrolled, consisting 151 individuals 88 matched healthy controls (HCs). Functional connectivity (FC) that correlated with symptom severity subjected single-cell interpretation through...
In two-way wave-equation depth migration by either time extrapolation or extrapolation, an efficient wavefield separation scheme (to separate wavefields into their one-way counterparts: down- and upgoing waves) is typically required for high-quality imaging. For a depth-extrapolation scheme, this conventionally accomplished using two wavefields, the pressure p its derivative [Formula: see text]. However, that presents significant challenge in accuracy computational cost wave-equation-based...
The thermal conductivity of flake graphite (FG) particulates reinforced high density polyethylene (HDPE) composites was systematically investigated under a special dispersion state FG particles. effects particle size, weight filling ratio and proportion various sizes were discussed in detail. A composite (15 wt % 500 μm/10 200 20 μm/5 2 μm + 60 (PE)) with about 2.49 W/(m·K) produced by combining the synergistic effect several fillers. component material size distribution employed to analyze...
Co‐processors offer attractive acceleration opportunities to waveform‐based imaging and inversion applications in challenging exploration production environments. Unlike seismic forward modeling, the large amount of data involved can pose a significant challenge scalable acceleration. We provide compare several computational schemes perform anisotropic reverse‐time migration on two co‐processor platforms: FPGAs GPUs. Our ongoing experiments so far indicate that both platforms potentially...
Abstract Regarding the vast difference between design index and actual performance of magnetic shielding devices, this paper proposes a novel method using precise permeability under specific weak field, aiming to improve accuracy performance. Firstly, relative permalloy is measured applied field from geomagnetic down 1 nT. Next, coefficient formulas single- double-layer spherical shells are derived. For shells, deviation remanence considering ultra-weak properties constant 24.3%. This...
A zero gravity robot (ZGR) is a two-body standalone system to isolate ambient disturbances provide high-level microgravity environment. ZGR demonstrates new means realize long-term and in space station. In this article, the performance of evaluated via conducting researches on design simulation control system. The configuration its working modes are first presented. Subsequently, methodology described, including dynamic modeling law for implementing active vibration isolation drag-free...
In a viscoacoustic medium, intrinsic attenuation causes seismic wavefields to attenuate in amplitude and become dispersed phase, leading distorted structural imaging inaccurate migrated amplitudes. To address this problem, reverse time migration corrects for dispersion effects wavefield propagation forward backward directions. provide parallel alternative approach, the fractional derivative wave equation depth domain is solved Q-compensated extrapolation scheme established compensate during...
Reverse time migration (RTM), based on the full solution of two‐way wave equation, is capable focusing waves beyond dip limitation one‐way imaging. Although becoming increasingly affordable, RTM still computationally expensive in practical applications. We present a target‐oriented approach to image only subset volume interest, potentially reducing runtime and memory cost significantly. As complementary tool traditional full‐volume imaging, reverse‐time (TRTM) can be useful achieving quicker...
With the development of space communication systems, transferred data have varied from traditional asynchronous to mixed synchronous and data. Synchronous data, such as video audio, need be transmitted in high real-time while image, command file, not real-time. The conventional way is transmit audio information a single channel, but it can decline channel utilization. To solve this problem, virtual (VC) scheduling algorithm proposed paper based on Consultative Committee for Space Data...
The earth Q-filter, including the energy dissipation of high frequency wave components and velocity dispersion, distorts seismic wavelets, reduces resolution, causes difficulty to obtain resolution data. process inverse Q-filter attempts remove Q-effect produce high-resolution data, but numerical instability amplitude compensation signal-to-noise (S/N) ratio limits its spatial resolution. In order control instability, a large number papers studying gain-limit constrained method. But, rarely...
Under the premise of ensuring safety and reliability equipment, power system takes highest economic benefit long-term operation equipment as core. It considers whole process single related projects, operation. also pursues a theoretical technical means optimal benefit. Its core is to analyze, predict control, make final decision by integrating various influencing factors. This paper combines algorithm with maintenance business uses evaluate life so formulate standards. The digital twin...