Results 21 to 30 of about 54,415 (225)

A Novel Fuzzy Controller for Visible-Light Camera Using RBF-ANN: Enhanced Positioning and Autofocusing

open access: yesSensors, 2022
To obtain high-precision for focal length fitting and improve the visible-light camera autofocusing speed, simultaneously, the backlash caused by gear gaps is eliminated.
Junpeng Zhou   +4 more
doaj   +1 more source

Non-linear carbon dioxide determination using infrared gas sensors and neural networks with Bayesian regularization [PDF]

open access: yes, 2009
Carbon dioxide gas concentration determination using infrared gas sensors combined with Bayesian regularizing neural networks is presented in this work.
Almeida   +27 more
core   +1 more source

Optimization of LMBP high-speed railway wheel size prediction algorithm based on improved adaptive differential evolution algorithm

open access: yesInternational Journal of Distributed Sensor Networks, 2019
It is beneficial for maintenance department to make maintenance strategy and reduce maintenance cost to forecast the hidden danger index value. Based on the analysis of the research status of wheel-to-life prediction at home and abroad and the repair of ...
Yu Zhang   +3 more
doaj   +1 more source

Local convergence of the Levenberg-Marquardt method under H\"{o}lder metric subregularity [PDF]

open access: yes, 2019
We describe and analyse Levenberg-Marquardt methods for solving systems of nonlinear equations. More specifically, we propose an adaptive formula for the Levenberg-Marquardt parameter and analyse the local convergence of the method under H\"{o}lder ...
Arag, F.J.   +4 more
core   +4 more sources

Fitting sediment rating curves using regression analysis: a case study of Russian Arctic rivers [PDF]

open access: yesProceedings of the International Association of Hydrological Sciences, 2015
Published suspended sediment data for Arctic rivers is scarce. Suspended sediment rating curves for three medium to large rivers of the Russian Arctic were obtained using various curve-fitting techniques.
N. I. Tananaev
doaj   +1 more source

Fast Calculation Method for Continuous Power Flow of Microgrid Based on Levenberg-Marquardt Algorithm

open access: yesIEEE Access, 2023
There are possible non-convergence problems at load power critical value while using conventional continuous power flow methods. Generally, the step control method is used in the calculation to perform the calculation in small steps at the convergence to
Yi Zhou, Junhong Zhang, Wei Gao
doaj   +1 more source

Linear complementarity problems on extended second order cones [PDF]

open access: yes, 2018
In this paper, we study the linear complementarity problems on extended second order cones. We convert a linear complementarity problem on an extended second order cone into a mixed complementarity problem on the non-negative orthant.
Németh, S. Z., Xiao, L.
core   +2 more sources

Mechanical properties of the concrete containing porcelain waste as sand [PDF]

open access: yes, 2018
The demand of concrete have been increases on a daily bases which consume a lot of natural resource such as sand and gravel, there is an immediate need for finding suitable alternative which can be used to replace sand partially with another materials ...
Al-juboor, Shihab   +4 more
core   +1 more source

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

Performance Evaluation of Bundle Adjustment with Population Based Optimization Algorithms Applied to Panoramic Image Stitching

open access: yesSensors, 2021
The image stitching process is based on the alignment and composition of multiple images that represent parts of a 3D scene. The automatic construction of panoramas from multiple digital images is a technique of great importance, finding applications in ...
Maria Júlia R. Aguiar   +4 more
doaj   +1 more source

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