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Water inrush sources monitoring and identification based on mine IoT
TLDR
Test results demonstrate that, owing to the application of mine IoT, both information collection efficiency and processing capability of water‐inrush source monitoring can be effectively enhanced, and the established water source identification system exhibits low false alarm rate and mis‐detection ratio, thereby significantly improving the prediction reliability.
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SDOG-based multi-scale 3D modeling and visualization on global lithosphere
The structure of global lithosphere is very important to the scientific researches of tectonic movement, geodynamic process, mantle convection, resource exploration, and disaster prevention and…
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A synthetic visual plane algorithm for visibility computation in consideration of accuracy and efficiency
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Enhancing the quality of tomographic image by means of image reconstruction based on hybrid grids
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A new Digital Earth reference model: spheroid-based 3D grid for Earth system (3DGES)
Being tightly related with map projection, planar mode cannot represent meso-scale and large-scale objects spanning projection zones and spheres, because map projection causes problems of with data…
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An SDOG-based intrinsic method for three-dimensional modelling of large-scale spatial objects
TLDR
Spheroid Degenerated-Octree Grid (SDOG), which takes the advantages of non-shrinking, quasi-uniform, non-overlapping, latitude–longitude consistent, hexahedron-shaped, uniformly subdivided, multi-resolution, is a preferable grid for developing an intrinsic method for the 3D modelling of large-scale spatial objects.
View on Taylor & Francis
Representation on the variation of earth system phenomenon based on SDOG-ESSG: Ionosphere as an example
TLDR
A three-dimensional (3D) Global Spatial Grid, named SDOG-ESSG, was adopted to represent the 3D and large-scale earth system phenomena and the experiment on ionosphere was taken to prove the superiority of the methods.
View on IEEE
Dual-Frequency ISB Estimation and Stability Analysis of BDS/GPS
TLDR
The dual-frequency ISB function model of BDS/GPS is derived based on dual- frequencies ionosphere-free combination to more accurately determine the time system deviation and hardware delay deviation in receiver.
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Fast determination of geometric matrix in ionosphere tomographic inversion with unevenly spaced curvilinear voxels
An efficient tomographic inversion model is very beneficial to image the ionosphere in real time. Geometric matrix determination, one of the indispensable procedures of voxel-based tomographic…
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QRB-tree Indexing: Optimized Spatial Index Expanding upon the QR-tree Index
TLDR
Direct comparisons of time costs with the QR−tree index and geohash index show that the QRB− tree index outperforms the other two approaches for rough queries in large query regions and exact queries in all cases.
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