Results 1 to 10 of about 8,105 (68)

Development of the Inversion Method for Transient Electromagnetic Data

open access: yesIEEE Access, 2020
Transient electromagnetic method (TEM) is a geophysical tool to obtain resistivity distribution in the subsurface. Combining with the resistivity property of typical rocks, the TEM method can make inferences of the geological maps underground.
Guoqiang Xue   +4 more
doaj   +3 more sources

A Classifying-Inversion Method of Offshore Atmospheric Duct Parameters Using AIS Data Based on Artificial Intelligence

open access: yesRemote Sensing, 2022
Atmospheric duct parameters inversion is an important aspect of microwave-band radar and communication system performance evaluation. AIS (Automatic Identification System) is one of the signal sources used for atmospheric duct parameters inversion ...
Jie Han   +7 more
doaj   +3 more sources

Exploration of superficial soil-rock structure for karst area based on frequency domain electromagnetic method

open access: yesCarsologica Sinica, 2022
Soil thickness as a key hydrological and ecological factor, is distributed extremely uneven in karst areas. The explorations of the soil thickness and soil-rock interfaces are still challenge.
Ping CHENG   +5 more
doaj   +1 more source

Inversion of Volume Scattering Function for Estimation of Bubble Size Distribution in Ocean Waters

open access: yesIEEE Access, 2021
Angular distribution of the intensity of light scattered by a spherical air bubble in the oceanic medium is distinctive near the critical scattering angle region, when light interacts with a bubble with a refractive index less than its surrounding medium.
Bhogeswara Rao Angara   +2 more
doaj   +1 more source

A Comprehensive Description of Multi-Term LSM for Applying Multiple a Priori Constraints in Problems of Atmospheric Remote Sensing: GRASP Algorithm, Concept, and Applications

open access: yesFrontiers in Remote Sensing, 2021
Advanced inversion Multi-term approach utilizing multiple a priori constraints is proposed. The approach is used as a base for the first unified algorithm GRASP that is applicable to diverse remote sensing observations and retrieving a variety of ...
Oleg Dubovik   +33 more
doaj   +1 more source

Agricultural Equipment Design Optimization Based on the Inversion Method

open access: yesAgriculture, 2022
A representative statistical analysis of the operational information of the reliability of tillage units, which have operating devices with an oscillating motion, was carried out. The results of the working condition of thirteen cultivators in operation,
Oleksiy Alfyorov   +6 more
doaj   +1 more source

In situ stress distribution law of fault zone in tunnel site area based on the inversion method with optimized fitting conditions

open access: yesFrontiers in Earth Science, 2023
Tunnel construction in high geo-stress strata faces the risk of extreme natural disasters such as large squeezing deformation and rockburst. Therefore, it is of great significance to adopt a high-precision inversion method to investigate the distribution
Tiansheng Li   +4 more
doaj   +1 more source

A Fast Forward and Inversion Strategy for Three-Dimensional Gravity Field

open access: yesMathematics, 2023
Obtaining a three-dimensional (3D) density distribution within a reasonable time is one of the most critical problems in gravity exploration. In this paper, we present an efficient 3D forward modeling and inversion method for gravity data.
Jianke Qiang   +3 more
doaj   +1 more source

Inversion Analysis of the In Situ Stress Field around Underground Caverns Based on Particle Swarm Optimization Optimized Back Propagation Neural Network

open access: yesApplied Sciences, 2023
The in situ stress distribution is one of the driving factors for the design and construction of underground engineering. Numerical analysis methods based on artificial neural networks are the most common and effective methods for in situ stress ...
Hong-Chuan Yan   +7 more
doaj   +1 more source

Calculation of Moisture Diffusivity of Wheat Dough at Different Temperatures Based on Inversion Method

open access: yesShipin gongye ke-ji, 2023
Moisture diffusivity is an important physical parameter in food proceeding. The primary method used to estimate the water diffusion coefficient is based on the second Fick’s law, but there are significant differences in the way in which these laws are ...
Wangming LI   +4 more
doaj   +1 more source

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