7,609 Result(s)
within
**ao** Xu
Earth Sciences
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Article
Inversion of Seabed Geotechnical Properties in the Arctic Chukchi Deep Sea Basin Based on Time Domain Adaptive Search Matching Algorithm
The chirp sub-bottom profiler, for its high resolution, easy accessibility and cost-effectiveness, has been widely used in acoustic detection. In this paper, the acoustic impedance and grain size compositions ...
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Article
A Heterogeneous Graph Construction Method for Mineral Prospectivity Map**
Graph-based models have been utilized for mineral prospectivity map** (MPM), and they have demonstrated excellent performance owing to their adaptable graph structure, which is conducive to comprehensively c...
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Article
DAS coupling noise suppression based on MCA–FK
In recent years, distributed fiber acoustic sensor (DAS) technology has been applied for high-precision acquisition of vertical seismic profile (VSP) data, which has the advantages of high-density acquisition,...
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Effects of Mineral Displacement on Geothermal Reservoir Properties at High Temperatures Identified using Micro-CT and Digital Volume Correlation
Characterization of reservoir rock samples under in situ conditions is crucial for evaluating the quantity and exploitable potential of geothermal energy. However, reservoir characterization is impeded by the ...
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Article
Dynamic Location Method for Shallow Ocean Bottom Nodes Using the Levenberg-Marquart Algorithm
Ocean bottom node (OBN) data acquisition is the main development direction of marine seismic exploration; it is widely promoted, especially in shallow sea environments. However, the OBN receivers may move seve...
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A New Method for Evaluating the Recoverability of Geothermal Fluid Under In Situ Conditions Based on Nuclear Magnetic Resonance
Aiming to solve the problems of unclear pore structure, unknown fluid storage and seepage pattern, and inaccurate fluid recoverability evaluation under in situ high pressure of thermal storage, a new method ba...
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Article
Cyclic Beam Direction of Arrival Estimation Method for Ship Propeller Noise
In underwater acoustic applications, the conventional cyclic direction of arrival algorithm faces challenges, including a low signal-to-noise ratio and high bandwidth when compared with modulated frequencies. ...
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Article
Spatiotemporal Distributions of Bacterioplankton Communities in the Qiantang River (Hangzhou Section), China
The spatial and temporal distribution of bacterioplankton communities plays a vital role in understanding the ecological dynamics and health of aquatic ecosystems. In this study, we conducted a comprehensive i...
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Article
Vulnerability and Conservation of Nearshore Cetaceans to Increasing Vessel Traffic: The Indo-Pacific Humpback Dolphin in the South China Sea
A comprehensive risk assessment to evaluate the vulnerability of the nearshore cetaceans to increasing marine traffic is lacking. In this study, the risk to Indo-Pacific humpback dolphins (Sousa chinensis) in the...
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Article
Osmium and zinc isotope constraints on the origin of chromitites from the Yarlung-Zangbo ophiolites, Tibet, China
Chromitites or chromite mineralization of varying degrees has been discovered in the various ophiolites along the east–west trending Yarlung-Zangbo Suture Zone (YZSZ) in Tibet, China. The high-Cr variety domin...
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Article
Storm Liquefaction Deposits: A Possibility of Time Reversal in Sedimentary Strata of an Estuarial Coastal Area
In the sedimentary strata dating of estuarial coastal areas, it is often found that there is phenomenon of time-reversal in strata. The seabed sediments could be liquefied under storm waves. A laboratory wave ...
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Article
Effects of Different Concentrations of Weak Acid Fracturing Fluid on the Microstructure of Coal
As a crucial factor that influences the hydraulic fracturing effectiveness of coal seams, fracturing fluids have garnered increasing attention. Among them, acid fracturing fluids have demonstrated positive imp...
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Article
Research on the method of determining landslide threshold based on accelerating point dynamic identification
This article employs dynamic recognition of acceleration points to determine velocity thresholds for different deformation stages of landslides. It proposes a dimensionless time parameter, tw, and analyzes over 6...
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Article
Physically modulated phytoplankton production and export at submesoscales in the oligotrophic South China Sea Basin
Oceanic submesoscales can significantly influence phytoplankton production and export owing to their similar timescales of days. Based on two-year Biogeochemical Argo (BGC-Argo) observations, this study invest...
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Article
Evaluation of Snowmelt and Rainfall Erosion in the Total Soil Losses in a Typical Small Watershed in Black Soil Region of Northeast China
Snowmelt erosion and rainfall erosion are important components of soil erosion in Northeast China. Studying how snowmelt and rainfall affect runoff and sediment yield is essential to control soil erosion in th...
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Article
Open AccessUsing radio occultation-based electron density profiles for studying sporadic E layer spatial and temporal characteristics
An improved method for identifying sporadic E (Es) layer properties from radio occultation (RO) electron density profiles (EDPs) is presented. The data used are sourced from COSMIC-1 RO EDPs collected between ...
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Article
Training data selection using information entropy: Application to heating load modeling of rural residence in northern China
The selection of input variables and their amount has been an important issue in big data load forecasting. Taking heating load forecasting as an example, this paper proposed a method for data filtering based ...
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Article
M_IFCB: a MATLAB-based software for multi‑GNSS inter‑frequency clock bias estimation and forecast
To address the lack of publicly available inter-frequency clock bias (IFCB) products and the impact of IFCB on real-time or near-real-time multi-frequency precision positioning, a MATLAB-based software for mul...
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Article
Impact of Ultra-Low Emission Technology of Thermal Power Plants on Air Quality in China
China is confronted with a severe air pollution challenge, wherein thermal power generation plays a significant role. In recent years, substantial efforts have been made in ultra-low emission retrofitting of c...
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Article
A DEM upscaling method with integrating valley lines based on HASM
A new digital elevation model (DEM) upscaling method based on high accuracy surface modeling (HASM) is proposed by combining the elevation information of DEM and the valley lines extracted from DEM with differ...
