Results 91 to 100 of about 195,711 (268)

Performance Assessment of a Wind Turbine Using SCADA based Gaussian Process Model

open access: yesInternational Journal of Prognostics and Health Management, 2018
Loss of wind turbine power production identified through performance assessment is a useful tool for effective condition monitoring of a wind turbine. Power curves describe the nonlinear relationship between power generation and hub height wind speed and
Ravi Kumar Pandit, David Infield
doaj   +1 more source

Regression with Gaussian Processes [PDF]

open access: yes, 1997
The Bayesian analysis of neural networks is difficult because the prior over functions has a complex form, leading to implementations that either make approximations or use Monte Carlo integration techniques. In this paper I investigate the use of Gaussian process priors over functions, which permit the predictive Bayesian analysis to be carried out ...
openaire   +1 more source

Symbolic Regression and Multi‐Objective Optimization of the Flory–Huggins Interaction Parameter for Hydrogels

open access: yesAdvanced Engineering Materials, EarlyView.
We develop a data‐driven method to derive the mathematical expressions of the Flory–Huggins interaction parameter χ for the swelling behavior of temperature–responsive hydrogels. Starting from initial assumptions of χ, our workflow combines Bayesian optimization, Flory–Rehner theory, and symbolic regression to generate candidate χ expressions.
Yawen Wang   +2 more
wiley   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

open access: yesAdvanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara   +8 more
wiley   +1 more source

Stochastic Wheel-Slip Compensation Based Robot Localization and Mapping

open access: yesAdvances in Electrical and Computer Engineering, 2016
Wheel slip compensation is vital for building accurate and reliable dead reckoning based robot localization and mapping algorithms. This investigation presents stochastic slip compensation scheme for robot localization and mapping.
SIDHARTHAN, R. K.   +3 more
doaj   +1 more source

Neutrosophic Gaussian Processes with Bootstrap Hypothesis Testing for Performance Evaluation of Highways Asphalt Pavement [PDF]

open access: yesNeutrosophic Sets and Systems
Highway agencies must evaluate asphalt pavement performance under heterogeneous evidence: sensor noise, missing records, inconsistent inspections, and conflicting expert opinions.
Haocheng Xiong, Tao Yang
doaj   +1 more source

In Situ Micromechanical Study of Bimodal γ′–γ″ Precipitate Assemblies in Ni–Cr–Al–Nb Superalloy

open access: yesAdvanced Engineering Materials, EarlyView.
A Ni–Cr–Al–Nb superalloy with a bimodal γ′–γ″ precipitate distribution is developed. Composite precipitate assemblies form through heterogeneous nucleation, effectively impeding dislocation motion. Micropillar compression reveals high strength at room and elevated temperatures, governed by precipitate shearing, with coupled faulting mechanisms ...
Ujjval Bansal   +4 more
wiley   +1 more source

Probing the Cosmic Distance Duality Relation via Non-Parametric Reconstruction for High Redshifts

open access: yesUniverse
We test the validity of the cosmic distance duality relation (CDDR) by combining angular diameter distance and luminosity distance measurements from recent cosmological observations.
Felipe Avila   +6 more
doaj   +1 more source

SCADA based nonparametric models for condition monitoring of a wind turbine

open access: yesThe Journal of Engineering, 2019
High operation and maintenance costs for offshore wind turbines push up the LCOE of offshore wind energy. Unscheduled maintenance due to unanticipated failures is the most prominent driver of the maintenance cost which reinforces the drive towards ...
Ravi Kumar Pandit   +2 more
doaj   +1 more source

Regularity of gaussian processes

open access: yesActa Mathematica, 1987
The author obtains necessary and sufficient conditions for the continuity or boundedness of a Gaussian process. A (centered) Gaussian process is a family \((X_ t)_{t\in T}\) of real-valued random variables, indexed by some index set T, such that every finite linear combination \(\sum a_ tX_ t\) is a real-valued Gaussian random variable.
openaire   +3 more sources

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