Results 21 to 30 of about 2,416,289 (329)

Intelligent Global Sensitivity Analysis Based on Deep Learning

open access: yesShanghai Jiaotong Daxue xuebao, 2022
This paper proposes an end-to-end method that combines deep learning and sensitivity analysis, which can perform gradient back propagation calculation sensitivity on the saved weight information while training the model.
WU Shuchen, QI Zongfeng, LI Jianxun
doaj   +1 more source

Towards parameter estimation in global hydrological models

open access: yesEnvironmental Research Letters, 2023
Global hydrological models (GHMs) supply key information for stakeholders and policymakers simulating past, present and future water cycles. Inaccuracy in GHM simulations, i.e.
Jenny Kupzig   +4 more
doaj   +1 more source

Sensitivity analysis of upscaling prediction of the mass flux at DNAPL contaminated sites

open access: yes地质科技通报, 2023
Dense nonaqueous phase liquid (DNAPL) contamination is a growing problem. To assess the environmental risk of DNAPL-contaminated sites, the mass flux of the dissolved phase (mass flux) in the source zone of DNAPL contamination is often extrapolated using
Meiyu Song   +3 more
doaj   +1 more source

Simplified Identification Strategy of Load Model Based on Global Sensitivity Analysis

open access: yesIEEE Access, 2020
Load modeling plays an important role in accessing and enhancing the dynamic stability of power systems. Though the Synthesis Load Model Considering Voltage Regulation of Distribution Network ( $\pi $ model) has high accuracy, its parameters are too ...
Xin Tian   +5 more
doaj   +1 more source

Comparative Study of Global Sensitivity Analysis and Local Sensitivity Analysis in Power System Parameter Identification

open access: yesEnergies, 2023
In the process of parameter identification, sensitivity analysis is mainly used to determine key parameters with high sensitivity in the model. Sensitivity analysis methods include local sensitivity analysis (LSA) and global sensitivity analysis (GSA ...
Chuan Qin   +4 more
doaj   +1 more source

Global sensitivity analysis for offshore wind cost modelling

open access: yesWind Energy, 2021
The costs of offshore wind are decreasing rapidly. However, there is a need to better understand the key drivers behind these cost reductions. New environmental regulations, economic policies, technological advancements and financing structures have ...
Esteve Borràs Mora   +2 more
doaj   +1 more source

Global Sensitivity Analysis Applied to Train Traffic Rescheduling: A Comparative Study

open access: yesEnergies, 2021
The adjustment of rail traffic in the event of an electrical infrastructure disruption presents an important decision-making process for the smooth operation of the network. Railway systems are complex, and their analysis relies on expensive simulations,
Soha Saad   +4 more
doaj   +1 more source

Sensitivity Analysis of the Land Surface Characteristic Parameters in Different Climatic Regions of the Loess Plateau

open access: yesAtmosphere, 2023
Land surface parameters are crucial in land surface process model simulations. Considering the complex land surface characteristics of the Loess Plateau, a parametric sensitivity analysis was conducted to determine the key parameters of its Noah Multi ...
Yuanpu Liu   +5 more
doaj   +1 more source

Aerodynamic Design Based on Global Sensitivity Analysis Method [PDF]

open access: yesXibei Gongye Daxue Xuebao, 2018
To deal with the problem of the difficult optimization search and expensive computational cost caused by large-scale design variables, the hierarchical optimization design system based on the global sensitivity analysis method is established in this ...

doaj   +1 more source

Lift-up, Kelvin-Helmholtz and Orr mechanisms in turbulent jets [PDF]

open access: yes, 2020
Three amplification mechanisms present in turbulent jets, namely lift-up, Kelvin–Helmholtz and Orr, are characterized via global resolvent analysis and spectral proper orthogonal decomposition (SPOD) over a range of Mach numbers.
Cavalieri, André V. G.   +5 more
core   +2 more sources

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