Results 41 to 50 of about 5,083,495 (228)

Efficient computation of capillary-gravity generalized solitary waves [PDF]

open access: yes, 2016
This paper is devoted to the computation of capillary-gravity solitary waves of the irrotational incompressible Euler equations with free surface. The numerical study is a continuation of a previous work in several points: an alternative formulation of ...
Clamond, Didier   +2 more
core   +4 more sources

Research of TDOA Direction Finding Algorithm Based on Levenberg-Marquardt [PDF]

open access: yesJisuanji gongcheng, 2018
A direction finding algorithm based on Levenberg-Marquardt(LM) is proposed to reduce the interference of Time Difference of Arrival(TDOA) measurement noise on lateral accuracy and avoid the phenomenon that algorithm results are not convergent.The closed ...
HOU Dongsheng,CUI Xunxue
doaj   +1 more source

Five planets and an independent confirmation of HD 196885Ab from Lick Observatory [PDF]

open access: yes, 2009
We present time series Doppler data from Lick Observatory that reveal the presence of long-period planetary companions orbiting nearby stars. The typical eccentricity of these massive planets are greater than the mean eccentricity of known exoplanets ...
Andrew Howard   +33 more
core   +2 more sources

Nonlinear-Least-Squares Analysis of Slow-Motion EPR Spectra in One and Two Dimensions Using a Modified Levenberg–Marquardt Algorithm

open access: yes, 1996
The application of the ‘‘model trust region’’ modification of the instrumentation. Two of the most important advances inLevenberg‐Marquardt minimization algorithm to the analysis of clude the introduction of two-dimensional Fourier-transform one ...
D. Budil   +3 more
semanticscholar   +1 more source

An Artificial Neural Network for Predicting Groundnut Yield Using Climatic Data

open access: yesAgriEngineering, 2023
Groundnut, being a widely consumed oily seed with significant health benefits and appealing sensory profiles, is extensively cultivated in tropical regions worldwide. However, the yield is substantially impacted by the changing climate.
Hirushan Sajindra   +4 more
doaj   +1 more source

A plethora of generalised solitary gravity-capillary water waves [PDF]

open access: yes, 2015
The present study describes, first, an efficient algorithm for computing capillary-gravity solitary waves solutions of the irrotational Euler equations with a free surface and, second, provides numerical evidences of the existence of an infinite number ...
Clamond, Didier   +2 more
core   +6 more sources

Neural network training acceleration using NVIDIA CUDA technology for image recognition

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2012
In this paper, an implementation of neural network trained by algorithm based on Levenberg-Marquardt method is presented. Training of neural network increased by almost 9 times using NVIDIA CUDA technology.
Alexander A Fertsev
doaj   +3 more sources

Non-linear optimization of the material constants in Ogden's strain-energy function for incompressible isotropic elastic materials [PDF]

open access: yes, 1981
The Levenberg—Marquardt non—linear least squares optimization algorithm is adapted to compute the material constants in Ogden' s strain—energy function for incompressible isotropic elastic materials. In previous papers, three terms have been included in
Ogden, R W, Twizell, E H
core  

A feasible and automatic free tool for T1 and ECV mapping [PDF]

open access: yes, 2017
Purpose: Cardiac magnetic resonance (CMR) is a useful non-invasive tool for characterizing tissues and detecting myocardial fibrosis and edema. Estimation of extracellular volume fraction (ECV) using T1 sequences is emerging as an accurate biomarker in ...
Altabella, Luisa   +8 more
core   +1 more source

Defect Analysis of the β– to γ–Ga2O3 Phase Transition

open access: yesAdvanced Functional Materials, EarlyView.
The role of defects at all the relevant stages of the β$\beta$‐ to γ$\gamma$‐Ga2O3 polymorph transition is investigated using a multi method approach. The positron annihilation spectroscopy based results show that the defect density decreases after the transition, and that changes in defect configuration within the γ phase occur with increasing ...
Umutcan Bektas   +9 more
wiley   +1 more source

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