Results 111 to 120 of about 667,125 (317)

Robust Spot Melting by 3D Spot Arrangements in Electron Beam Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
This work proposes an approach to replace separately melted contours for spot melting in electron beam powder fusion. Adapting the spot arrangements close to the contour combined with stacking yields a comparable surface quality without the inherent challenges of separate contours, as demonstrated, by electron optical images and roughness measurements.
Tobias Kupfer   +4 more
wiley   +1 more source

Gaussian Pell and Gaussian Pell-Lucas quaternions

open access: yesFilomat, 2021
The main aim of this work is to introduce the Gaussian Pell quaternion QGpn and Gaussian Pell-Lucas quaternion QGqn, where the components of QGpn and QGqn are Pell numbers pn and Pell-Lucas numbers qn, respectively. Firstly, we obtain the recurrence relations and Binet formulas for QGpn and QGqn.
openaire   +3 more sources

Gaussian Semiparametric Estimation of Non-stationary Time Series [PDF]

open access: yes, 1998
Generalizing the definition of the memory parameter d in terms of the differentiated series, we showed in Velasco (Non-stationary log-periodogram regression, Forthcoming J.
Velasco Gómez, Carlos, Velasco, Carlos
core  

Multimodal Data‐Driven Microstructure Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang   +4 more
wiley   +1 more source

Classifying Exoplanets with a Gaussian Mixture Model

open access: yesThe Open Journal of Astrophysics, 2018
Recently, Odrzywolek and Rafelski have found three distinct categories of exoplanets, when they are classified based on density. We first carry out a similar classification of exoplanets according to their density using the Gaussian Mixture Model ...
Soham Kulkarni, Shantanu Desai
doaj   +1 more source

On the Csorgo-Révész increments of finite dimensional Gaussian random fields [PDF]

open access: yes
In this paper, we establish some limit theorems on the combined Csorgo-Révész increments with moduli of continuity for finite dimensional Gaussian random fields under mild conditions, via estimating upper bounds of large deviation probabilities on ...
Kyo-Shin Hwang   +3 more
core  

Lifting wavelet algorithm for freeform surface filtering using a Gaussian prediction operator

open access: yes, 2013
The aim of the paper is to investigate a novel lifting wavelet algorithm based on a Gaussian prediction operator to filter freeform surfaces represented by 3D triangular meshes.
Abdul-Rahman, Hussein S.   +2 more
core   +1 more source

Classification of protein interaction sentences via gaussian processes [PDF]

open access: yes, 2009
The increase in the availability of protein interaction studies in textual format coupled with the demand for easier access to the key results has lead to a need for text mining solutions.
Polajnar, T.   +5 more
core   +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

Symplectic dilations, Gaussian states and Gaussian channels [PDF]

open access: yesIndian Journal of Pure and Applied Mathematics, 2015
By elementary matrix algebra we show that every real $2n \times 2n$ matrix admits a dilation to an element of the real symplectic group $Sp (2(n+m))$ for some nonnegative integer $m.$ Our methods do not yield the minimum value of $m,$ for which such a dilation is possible. After listing some of the main properties of Gaussian states in $L^2 (\mathbb{R}^
openaire   +3 more sources

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