Results 81 to 90 of about 281,341 (190)

Estimating photosynthetic traits from reflectance spectra: A synthesis of spectral indices, numerical inversion, and partial least square regression. [PDF]

Plant Cell Environ, 2020
Fu P, Meacham-Hensold K, Guan K, Wu J, Bernacchi C.   +4 more
europepmc   +1 more source

Numerical inversion simulation of coal and rock under uniaxial compression failure in PFC^2D

矿业科学学报, 2017
Coal is a natural inhomogeneous and discontinuous rock, which is very difficult to obtain repeatability test results through the experiment method.This paper based on discrete element software PFC2D and obtained coal deformation damage control parameters
Zhou Tianbai, Yang Xiaobin, Han Xinxing
doaj  

Seismic Waveform Inversion Using the Finite-Difference Contrast Source Inversion Method

Journal of Applied Mathematics, 2014
This paper extends the finite-difference contrast source inversion method to reconstruct the mass density for two-dimensional elastic wave inversion in the framework of the full-waveform inversion.
Bo Han, Qinglong He, Yong Chen, Yixin Dou   +3 more
doaj   +1 more source

A Non-Intrusive Thermal Fault Inversion Method for GIS Using a POD-Kriging Surrogate Model and the Grey Wolf Optimizer

Energies
To address the inverse identification of contact-related thermal faults in gas-insulated switchgear (GIS), this study proposes a method for contact resistance inversion and internal temperature field reconstruction.
Linhong Yue, Hao Yang, Congwei Yao, Yanan Yuan, Kunyu Song   +4 more
doaj   +1 more source

Multi-Scale Acoustic Velocity Inversion Based on a Convolutional Neural Network

Remote Sensing
The full waveform inversion at this stage still has many problems in the recovery of deep background velocities. Velocity modeling based on end-to-end deep learning usually lacks a generalization capability.
Wenda Li, Tianqi Wu, Hong Liu
doaj   +1 more source

Automatically Differentiable Higher-Order Parabolic Equation for Real-Time Underwater Sound Speed Profile Sensing

Journal of Marine Science and Engineering
This paper is dedicated to the acoustic inversion of the vertical sound speed profiles (SSPs) in the underwater marine environment. The method of automatic differentiation is applied for the first time in this context.
Mikhail Lytaev
doaj   +1 more source

Acoustic Seismic Inversion and Migration for Depth Velocity Model Reconstruction

Geosciences
This paper investigates the combined application of seismic inversion and migration for processing seismic data in the depth domain. Seismic inversion serves as a widely used practical tool allowing the derivation of detailed subsurface models from ...
Maxim Protasov, Danil Dmitrachkov
doaj   +1 more source

Numerical methods for electromagnetic inversion

, 2023
The aim of electromagnetic (EM) sounding methods in geophysics is to obtain information about the subsurface of the earth by recorded measurements taken at the surface. In particular, the goal is to determine variations in the electrical conductivity of the earth with depth by employing an inversion procedure.
openaire   +1 more source

Structural and magnetic properties of multi-core nanoparticles analysed using a generalised numerical inversion method. [PDF]

Sci Rep, 2017
Bender P, Bogart LK, Posth O, Szczerba W, Rogers SE, Castro A, Nilsson L, Zeng LJ, Sugunan A, Sommertune J, Fornara A, González-Alonso D, Barquín LF, Johansson C.   +13 more
europepmc   +1 more source

Cytogenetic finding of simultaneous inversion of chromosome 14 and tetrasomy 8 in a Pediatric B-Lymphoblastic Leukemia-a case report

Molecular Cytogenetics
Background Clonal cytogenetic abnormalities in B-lymphoblastic leukemia (B-ALL) include structural and numerical chromosomal alterations, where numerical are the most common aberrations.
Kiran Sachwani, Rehab Pasha, Bushra Kaleem, Neelum Mansoor   +3 more
doaj   +1 more source