A5061332279- Geographic Information Systems Studies
- Data Management and Algorithms
- Chronic Disease Management Strategies
- Advanced Measurement and Metrology Techniques
- Plant and animal studies
- Paleontology and Stratigraphy of Fossils
- Advanced Computational Techniques and Applications
- Groundwater and Isotope Geochemistry
- Aquatic and Environmental Studies
- Arctic and Antarctic ice dynamics
- Bone and Joint Diseases
- Geological Studies and Exploration
- Geochemistry and Elemental Analysis
- Reinforcement Learning in Robotics
- Remote Sensing and Land Use
- Maritime Navigation and Safety
- Medical Research and Treatments
- Manufacturing Process and Optimization
- Inertial Sensor and Navigation
- Maritime Ports and Logistics
- Coastal and Marine Management
- Statistical Methods in Epidemiology
- Time Series Analysis and Forecasting
- Hip disorders and treatments
- Hydrogen's biological and therapeutic effects
Zunyi Medical University
2025
Dalian Ocean University
2019-2024
Dalian Naval Academy
2019-2024
Ministry of Natural Resources
2024
Beijing Institute of Petrochemical Technology
2024
Shandong Geological Sciences Institute
2023
Huizhou Central People's Hospital
2013
Ocean University of China
2008
The Huanggang depression in eastern China is a significant Cenozoic salt-bearing basin that formed during the alternating dry and wet climate periods from Eocene to Oligocene. Despite economic importance of depression, its saliferous model remains controversial. To address this issue, we conducted comprehensive analyses sedimentology elemental geochemistry on YZR1 borehole core, which hosts relatively complete sedimentary record consisting five lithofacies’ assemblages. combined lithofacies...
Halite is a type of evaporite that can be processed into refined salt for food processing, and used as an important raw material in the chemical industry. However, our understanding astronomical forcing pattern on halite formation at sedimentary basin scale still limited. Here, we present halite-rich lacustrine record from middle-late Eocene through early Oligocene Dawenkou Formation Huanggang Basin, Eastern China. A ∼ 6.5-Myr-long floating time was constructed based 405-kyr orbital...
Spondyloarthritis (SpA), a chronic inflammatory disorder, predominantly impacts the sacroiliac joints and spine, significantly escalating risk of disability. SpA's complexity, as evidenced by its diverse clinical presentations symptoms that often mimic other diseases, presents substantial challenges in accurate diagnosis differentiation. This complexity becomes even more pronounced nonspecialist health care environments due to limited resources, resulting delayed referrals, increased...
Aiming at the problem that current double direction buffering algorithm is easy to use seal “bottleneck” area when simplifying coastlines, an adaptive simplification method for coastlines using a skeleton line “bridge” proposed. Firstly, from perspective of visual constraints, relationship between buffer distance and coastline width minimum recognition human eye theoretically derived determined. Then, based on construction binary tree, extracted “source tracing” algorithm. Finally, shoreline...
In current practices of determining continental shelf area, the measured sediment thickness data do not effectively reflect distribution sediments across area due to its dispersed nature. This issue raises potential limitations in unknown optimal survey line layout strategies for maximizing posterior determination area. paper adopts binary search algorithm, relies on existing grid data, and uses geodetic formulas build an ellipsoidal surface distance calculation model. model quickly screens...
Addressing the shortcomings of existing ship trajectory compression methods that rely on empirical setting a fixed threshold and face challenges in controlling spatial similarity before after compression, this paper proposes self-adaptive method for trajectories does not require setting. Initially, hierarchical sequential tree structure based characteristics is constructed to determine importance ship’s points. Subsequently, dynamic time warping (DTW) operator introduced assess exploring...
The method for calculation of geodetic problem on earth ellipsoid surface is the basic premise realization high-precision marine delimitation technology. Based analysis construction principle existing solution method, algorithm direct solution(DGPS) based nested coefficient and Bessel’s inverse solution(IGPS), which are suitable various distance solutions, optimized. Then, experimental verification scheme designed. Finally, crossing reducing accuracy different examples verified by methods,...
The automatic extraction of bottom sediment annotations in large-scale raster nautical charts has limitations, including an imprecise semantic information description and low efficiency. To overcome them, we propose a convolutional neural network (CNN)-based method for the charts, using image processing techniques to improve it. First, adaptive chart partitioning model that considers element completeness is constructed. Second, principle unique identification elements based on spatial...
Based on the current quality detection methods and development direction of digital chart, a Chart method based depth range constraints in isobath zones was proposed for large number water points isobates chart. Firstly, view defects existing method, different are compared analyzed. Then, logical error chart data is studied. Through experimental calculation, weight extraction determined. The results show that can effectively improve accuracy detection.
<sec> <title>BACKGROUND</title> Spondyloarthritis (SpA), a chronic inflammatory disorder, predominantly impacts the sacroiliac joints and spine, significantly escalating risk of disability. SpA’s complexity, as evidenced by its diverse clinical presentations symptoms that often mimic other diseases, presents substantial challenges in accurate diagnosis differentiation. This complexity becomes even more pronounced nonspecialist health care environments due to limited resources, resulting...
Addressing the limitations of current multi-scale seabed terrain construction methods for a Digital Depth Model (DDM) and low computational efficiency automatic generalization algorithms, this paper draws on concept curvature simplification from 3D point cloud data processing proposes block-based DDM method that leverages surface features. Initially, clustering blocking model is established using an improved K-means algorithm partitioning data. Subsequently, fitting constructed based...
Nowadays, the existing methods usually utilize Voronoi diagram for automatically selecting islands in chart. However, it is very hard that selection results meet actual requirement, of which significant reason difficult to represent density and distribution chart cartography generalization. Aiming at these drawbacks above, a method based on competitive influence domains proposed this paper. Firstly, representing spatial data are analysed theoretically, island domain model introduced solve...
Existing methods for automatically selecting islands nautical charts utilize the Voronoi diagram. However, we will show that diagrams cannot accurately represent density and distribution of in cartographic generalization, which makes it difficult to obtain selection results meet requirements. We propose a novel method based on influence domains. First, shortcomings diagram representation spatial data are analyzed using an island domain (IID) model. Second, model is defined constructed,...
To address a limitation of DDM interpolation not considering the error distribution characteristics, method for interpolating Digital Depth Model based on semiparametric regression and uncertainty weighting is proposed in this paper. Firstly, observed from raw depths considered to be random, matrix built expressing kind random error. Secondly, approximate function regarded systematic, model constructed taking part systematic into consideration. Finally, new both The experimental results...
Abstract In order to study the distribution of sea ice in Arctic Channel, along Channel was extracted based on MODIS remote sensing data. Supervised classification method is used establish a noise removal for short time series obtain boundary. From this, navigability waterway analyzed. The results show that although data contain more effects, accurate information can be obtained by effective methods, which provides support judgment navigation capacity waterway.