Results 11 to 20 of about 45,357 (264)

Study on risk assessment of expressway nighttime maintenance construction: A Dynamic Bayesian Network model [PDF]

open access: yesE3S Web of Conferences, 2021
There are many risk factors and large uncertainties in expressway nighttime maintenance construction(ENMC), and the state of risk factors will change dynamically with time.
Tian Zhen   +4 more
doaj   +1 more source

Parallel Hierarchical Genetic Algorithm for Scattered Data Fitting through B-Splines

open access: yesApplied Sciences, 2019
Curve fitting to unorganized data points is a very challenging problem that arises in a wide variety of scientific and engineering applications. Given a set of scattered and noisy data points, the goal is to construct a curve that corresponds to the best
Jose Edgar Lara-Ramirez   +5 more
doaj   +1 more source

Noise reduction method of shearer’s cutting sound signal under strong background noise

open access: yesMeasurement + Control, 2022
In coal and rock recognition technology, the acquisition of sound signals is affected by background noise. It is challenging to extract cutting features and accurately identify cutting patterns effectively.
Changpeng Li   +3 more
doaj   +1 more source

Automatic Extraction of Surface Wave Dispersion Curves Using Unsupervised Learning and High‐Resolution Tau‐p Transform

open access: yesEarth and Space Science, 2023
Dispersion curves for surface wave recordings are required input for many surface wave inversion methods to image subsurface shear wave velocity distribution, while the conventional extraction of dispersion curves requires significant amount of human ...
Hai Yao   +4 more
doaj   +1 more source

Research on laser center positioning under CV model segmentation

open access: yesFrontiers in Physics, 2022
Spot positioning accuracy is an important index of laser processing system and ranging system. When the laser spot is noisy or the gray level is not uniform, the positioning accuracy is easily affected. Aiming at the above problems, this paper proposes a
Xingchen Guo   +5 more
doaj   +1 more source

Sample Reduction for Physiological Data Analysis Using Principal Component Analysis in Artificial Neural Network

open access: yesApplied Sciences, 2021
With its potential, extensive data analysis is a vital part of biomedical applications and of medical practitioner interpretations, as data analysis ensures the integrity of multidimensional datasets and improves classification accuracy; however, with ...
Cid Mathew Santiago Adolfo   +3 more
doaj   +1 more source

A Robust Rigid Skeleton Extraction Method from Noisy Visual Hull Model

open access: yesInternational Journal of Advanced Robotic Systems, 2015
The existing skeleton extraction algorithms from a coarse and noisy model cannot achieve a satisfactory skeleton, let alone the joints' central position in a markerless motion capture system (e.g., a rigid skeleton).
Xiaojun Wu, YiXin Xu
doaj   +1 more source

On rules for stopping the conjugate gradient type methods in ill‐posed problems

open access: yesMathematical Modelling and Analysis, 2007
We consider stopping rules in conjugate gradient type iteration methods for solving linear ill‐posed problems with noisy data. The noise level may be known exactly or approximately or be unknown. We propose several new stopping rules, mostly for the case
Uno Hämarik, Reimo Palm
doaj   +1 more source

Novel deep learning approach for practical applications of indentation

open access: yesMaterials Today Advances, 2022
The instrumented indentation technique has been investigated to efficiently evaluate the mechanical responses of materials with few limitations on the shape and size of the specimen.
Yongju Kim   +6 more
doaj   +1 more source

Coded Downlink Multi-user MC-CDMA System using Transmitter Pre-processing: Performance Results

open access: yesIEEE Access, 2016
In this treatise, we evaluate the error-rate (ER) performance of turbo-coded multi-carrier code division multiple access scheme (MC-CDMA) for downlink (DL) transmission.
K. S. Vishvaksenan, P. T. Vasanth Raj
doaj   +1 more source

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