Results 51 to 60 of about 56,902 (196)

Pointwise consistency of the kriging predictor with known mean and covariance functions

open access: yes, 2009
This paper deals with several issues related to the pointwise consistency of the kriging predictor when the mean and the covariance functions are known. These questions are of general importance in the context of computer experiments.
D. Williams   +10 more
core   +3 more sources

Multi-objective design of antenna structures using variable-fidelity EM simulations and co-kriging [PDF]

open access: yes, 2014
A methodology for low-cost multi-objective design of antenna structures is proposed. To reduce the computational effort of the design process the initial Pareto front is obtained by optimizing the response surface approximation (RSA) model obtained from ...
Couckuyt, Ivo   +3 more
core   +1 more source

Simulation‐Informed Evaluation of Microvascular Parameter Mapping for Diffusion MR Imaging of Solid Tumours

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose We aim to inform the design of new diffusion MRI (dMRI) approaches for microvasculature quantification that enhance the biological specificity of imaging towards cancer. Methods We adopted simulation‐informed modelling of the vascular dMRI signal. We synthesised signals from 1500 synthetic vascular networks, for a variety of protocols (
Anna Kira Voronova   +11 more
wiley   +1 more source

Mechanism reliability and sensitivity analysis of landing gear under multiple failure modes

open access: yesXibei Gongye Daxue Xuebao, 2021
For a certain type of aircraft landing gear retraction-extension mechanism, a multi-body dynamic simulation model is established, and the time-dependent curves of force and angle are obtained.

doaj   +1 more source

Data Driven Surrogate Based Optimization in the Problem Solving Environment WBCSim [PDF]

open access: yes, 2009
Large scale, multidisciplinary, engineering designs are always difficult due to the complexity and dimensionality of these problems. Direct coupling between the analysis codes and the optimization routines can be prohibitively time consuming due to the ...
Deshpande, S.   +4 more
core   +3 more sources

Assessing high‐resolution numerical models and bottom‐boundary factors for a Mediterranean heavy precipitation event

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
State‐of‐the‐art, convection‐permitting NWP models reproduced the main features of the October 22–23, 2019 heavy precipitation event in Catalonia. However, slight configuration changes yielded varying streamflow responses and statistical performance, highlighting the challenge of simulating these events in Mediterranean medium‐sized basins ...
D. Ramonell   +3 more
wiley   +1 more source

Multiobjective Optimization Design of Spherical Axial Split-Phase Permanent Maglev Flywheel Machine Based on Kriging Model

open access: yesIEEE Access, 2022
In order to improve the torque and suspension performance and reduce the torque ripple of spherical axial split-phase permanent maglev flywheel machine (S-AP-MF), a multi-objective optimization design method based on kriging model was proposed.
Zhiying Zhu   +5 more
doaj   +1 more source

NowPrecip 2: Precipitation nowcasting in the complex terrain of Switzerland. Part I: Methods

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
In this work we present the methods of the areal precipitation nowcasting system NowPrecip version 2. In this version a new methodology is introduced, which, although it shares philosophy and techniques with the original methodology of NowPrecip version 1, can be considered as distinct from that.
I. V. Sideris   +7 more
wiley   +1 more source

Variable-fidelity optimization of microwave filters using co-kriging and trust regions [PDF]

open access: yes, 2012
In this paper, a variable-fidelity optimization methodology for simulation-driven design optimization of filters is presented. We exploit electromagnetic (EM) simulations of different accuracy.
Couckuyt, Ivo   +2 more
core  

Glare, a GIS tool to reconstruct the 3D surface of palaeoglaciers [PDF]

open access: yes, 2016
Acknowledgements This research has been supported by the Leverhulme Trust International Network Grant IN-2012-140. Processing and collecting of ground penetrating data in Forgefonna was part of Elend Førre's master's project that was completed in 2009 at
Bakke, Jostein   +9 more
core   +4 more sources

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