Results 41 to 50 of about 14,309 (209)

Structural strength analysis and optimization of converter lug based on Kriging model

open access: yes机车电传动, 2022
The structural analysis of rail transit converters installed under the vehicle often involves time-consuming computer simulations to evaluate the strength of the structure for safety requirements. For typical rail transit converters, each static strength
HE Guanqiang   +3 more
doaj  

Spatial prediction of soil penetration resistance using functional geostatistics

open access: yesScientia Agricola
Knowledge of agricultural soils is a relevant factor for the sustainable development of farming activities. Studies on agricultural soils usually begin with the analysis of data obtained from sampling a finite number of sites in a particular region of ...
Diego Leonardo Cortés-D   +2 more
doaj   +1 more source

Satellite-derived plant cover maps vary in performance depending on version and product

open access: yesEcological Indicators, 2023
Understanding the accuracy and appropriate application scale of satellite-derived maps of vegetation cover is essential for effective management of the vast, remote rangelands of the world.
Cara Applestein, Matthew J Germino
doaj   +1 more source

A Universal Kriging predictor for spatially dependent functional data of a Hilbert Space [PDF]

open access: yes, 2013
We address the problem of predicting spatially dependent functional data belonging to a Hilbert space, with a Functional Data Analysis approach. Having defined new global measures of spatial variability for functional random processes, we derive a ...
A. Menafoglio, M. Dalla Rosa, P. Secchi
core   +2 more sources

Climatic variations in Macerata province (Central Italy) [PDF]

open access: yes, 2018
The province of Macerata, Italy, is a topographically complex region which has been little studied in terms of its temperature and precipitation climatology.
Barbieri, Maurizio   +2 more
core   +1 more source

Wish you were here: How defaunated is the Atlantic Forest biome of its medium- to large-bodied mammal fauna? [PDF]

open access: yesPLoS ONE, 2018
Mammals represent the largest-bodied elements of the world's surviving megafauna and provide several key ecosystems services, yet their populations are often under steep decline throughout the tropics.
Juliano André Bogoni   +4 more
doaj   +1 more source

An automatic modeling approach for the potential evaluation of CO2 geological storage in the deep saline aquifer

open access: yesFrontiers in Energy Research, 2022
Geological storage of carbon dioxide is receiving more and more attention as one of the efficient carbon reduction technologies, as China’s carbon-neutral strategic plan moves forward.
Tieya Jing   +8 more
doaj   +1 more source

Trust‐region filter algorithms utilizing Hessian information for gray‐box optimization

open access: yesAIChE Journal, EarlyView.
Abstract Optimizing industrial processes often involves gray‐box models that couple algebraic glass‐box equations with black‐box components lacking analytic derivatives. Such systems challenge derivative‐based solvers. The classical trust‐region filter (TRF) algorithm provides a robust framework but requires extensive parameter tuning and numerous ...
Gul Hameed   +4 more
wiley   +1 more source

Interpolating point spread function anisotropy

open access: yes, 2012
Planned wide-field weak lensing surveys are expected to reduce the statistical errors on the shear field to unprecedented levels. In contrast, systematic errors like those induced by the convolution with the point spread function (PSF) will not benefit ...
Courbin, F., Gentile, M., Meylan, G.
core   +1 more source

Diagnostics of an Aircraft Engine Pumping Unit Using a Hybrid Approach based-on Surrogate Modeling [PDF]

open access: yes, 2013
This document introduces a hybrid approach for fault detection and identification of an aircraft engine pumping unit. It is based on the complementarity between a model-based approach accounting for uncertainties aimed at quantifying the degradation ...
LAMOUREUX, Benjamin   +2 more
core   +5 more sources

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