Results 21 to 30 of about 302 (108)

LSA‐HELM: A Boosted Configuration to Optimize the Reconstruction Model of Dynamic Force on Aviation Composite Skin

open access: yesIET Science, Measurement &Technology, Volume 19, Issue 1, January/December 2025.
The LSA‐HELM is a lightweight model designed to reduce computational complexity and enhance overall efficiency. By introducing a lightweight spatiotemporal attention mechanism, the input data are weighted to capture key features effectively. The suggested method is a combination of theory and experimental techniques, which has an industrial application
Chuansheng Huang   +7 more
wiley   +1 more source

Geometry Control Equation of the Circular Ring Tower Based on Unstressed State Amounts

open access: yesAdvances in Civil Engineering, Volume 2025, Issue 1, 2025.
In high‐degree‐of–freedom complex structures, the ill‐conditioning or singularity of the stiffness matrix is a key factor affecting the accuracy and stability of structural analysis. Regularization techniques are introduced to solve this issue. The introduction of a regularization parameter can effectively transform the stiffness matrix from a singular
Lixin Ou   +4 more
wiley   +1 more source

A Modified Regularization Method for Inverse Problems of Nonhomogeneous Differential Operator Equation

open access: yesJournal of Mathematics, Volume 2025, Issue 1, 2025.
This paper investigates an abstract nonhomogeneous backward Cauchy problem governed by an unbounded linear operator in a Hilbert space H. The coefficient operator in the equation is assumed to be unbounded, self‐adjoint, positive, and to possess a discrete spectrum, with data prescribed at the final time t = T.
Nihed Teniou, Xian-Ming Gu
wiley   +1 more source

Stochastic Static Model Updating of Bridge Using Homotopy Method and Pre‐Estimated Solution Domain

open access: yesStructural Control and Health Monitoring, Volume 2025, Issue 1, 2025.
When implementing structural model updating, whether the model is stochastic or deterministic, the ill‐posed issue is a challenging problem. To effectively address this problem, this paper proposes a new static stochastic model updating method, which combines the homotopy method with the pre‐estimation technique of solution domains of the updating ...
Bin Huang   +5 more
wiley   +1 more source

Imaging of ventilation and lung injury with low‐frequency tomographic ultrasound

open access: yesMedical Physics, Volume 51, Issue 12, Page 9138-9154, December 2024.
Abstract Background Mechanical ventilation in the intensive care unit (ICU) is a life‐saving technique for patients with acute respiratory failure, but is also associated with a high incidence of complications in the injured lung. Currently, there is no widely used monitoring technique to guide the ventilator setting to facilitate a precision medicine ...
Andre Vieira Pigatto   +5 more
wiley   +1 more source

Robustness and exploration of variational and machine learning approaches to inverse problems: An overview

open access: yesGAMM-Mitteilungen, Volume 47, Issue 4, November 2024.
Abstract This paper provides an overview of current approaches for solving inverse problems in imaging using variational methods and machine learning. A special focus lies on point estimators and their robustness against adversarial perturbations. In this context results of numerical experiments for a one‐dimensional toy problem are provided, showing ...
Alexander Auras   +3 more
wiley   +1 more source

Neural‐network‐based regularization methods for inverse problems in imaging

open access: yesGAMM-Mitteilungen, Volume 47, Issue 4, November 2024.
Abstract This review provides an introduction to—and overview of—the current state of the art in neural‐network based regularization methods for inverse problems in imaging. It aims to introduce readers with a solid knowledge in applied mathematics and a basic understanding of neural networks to different concepts of applying neural networks for ...
Andreas Habring, Martin Holler
wiley   +1 more source

Unsteady Secondary Flow Structure at a Large River Confluence

open access: yesWater Resources Research, Volume 60, Issue 11, November 2024.
Abstract River confluences, which are characterized by complex hydrodynamics, are key nodes for flood control and environmental protection. Two field surveys were carried out at the confluence of the Yangtze River and Poyang Lake to investigate the transient character of flow structures, which are often assumed steady.
Lei Xu   +6 more
wiley   +1 more source

Parameter identification using finite elements and full‐field data in the all‐at‐once context

open access: yesPAMM, Volume 24, Issue 3, October 2024.
Abstract Material parameter identification within the field of mechanics of materials is driven by different issues: experiments affecting the parameters, constitutive models describing the physical behavior of a material, discretization schemes for solving the initial boundary‐value problem of the underlying tests, as well as schemes calibrating the ...
Stefan Hartmann   +3 more
wiley   +1 more source

Deciphering the Role of Total Water Storage Anomalies in Mediating Regional Flooding

open access: yesGeophysical Research Letters, Volume 51, Issue 16, 28 August 2024.
Abstract Regional floods result from various flood generation mechanisms. Traditional analyses mainly link flooding to extreme rainfall, with limited input from soil moisture. Total water storage (TWS) is a holistic measure of basin wetness, including additional storage components from surface water, snow, and groundwater. Utilizing a new 5‐day Gravity
Alexander Y. Sun   +4 more
wiley   +1 more source

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