Results 21 to 30 of about 223,933 (277)

Estimation of Full Dynamic Parameters of Large Space Debris Based on Rope Net Flexible Collision and Vision

open access: yesActuators, 2023
The identification of space debris’s dynamic parameters is a prerequisite for detumbling and capture operations. In this paper, a novel method for identifying dynamic parameters based on the rope net flexible collision and vision data is proposed, which ...
Chao Tang   +5 more
doaj   +1 more source

A Gaussian Beam Based Recursive Stiffness Matrix Model to Simulate Ultrasonic Array Signals from Multi-Layered Media

open access: yesSensors, 2020
Ultrasonic testing using arrays is becoming widely used to test composite structures in the Aerospace industry. In recent years, the Full Matrix Capture (FMC) technique has been implemented to extract the signals for post-processing to form an image. The
Chirag Anand   +2 more
doaj   +1 more source

Microbiome Data Analysis by Symmetric Non-negative Matrix Factorization With Local and Global Regularization

open access: yesFrontiers in Molecular Biosciences, 2021
A network is an efficient tool to organize complicated data. The Laplacian graph has attracted more and more attention for its good properties and has been applied to many tasks including clustering, feature selection, and so on.
Junmin Zhao, Yuanyuan Ma, Lifang Liu
doaj   +1 more source

Full-matrix capture and USB3.0 for open platform phased array instruments [PDF]

open access: yesAIP Conference Proceedings, 2016
Nondestructive evaluation (NDE) using ultrasonic waves is an efficient technique to assess industrial component integrity. The use of array probes enables inspection flexibility and advanced imaging techniques such as the total focusing method (TFM).
Gavin Dao   +3 more
openaire   +1 more source

Sampled-Data Synchronization Control for Chaotic Neural Networks With Mixed Delays: A Discontinuous Lyapunov Functional Approach

open access: yesIEEE Access, 2021
The sampled-data synchronization problem of chaotic neural networks with mixed time delays is investigated in this paper. A novel augmented discontinuous Lyapunov-Krasovskii functional (ADLKF) is constructed, which can make full capture the more ...
Quan Hai
doaj   +1 more source

Separation mechanism and experimental investigation of pulsating high gradient magnetic separation

open access: yesResults in Physics, 2023
Pulsating high gradient magnetic separation (PHGMS) has been widely used for separating magnetic minerals in the past decades. In practice, magnetic field and flow field are the main factors that affect the capture of magnetic particles by medium wires ...
Fangping Ye   +4 more
doaj   +1 more source

The Study on the Text Classification Based on Graph Convolutional Network and BiLSTM

open access: yesApplied Sciences, 2022
Graph Convolutional Neural Network (GCN) is widely used in text classification tasks. Furthermore, it has been effectively used to accomplish tasks that are thought to have a rich relational structure.
Bingxin Xue   +3 more
doaj   +1 more source

Damage investigation in CFRP composites using full-field measurement techniques: combination of digital image stereo-correlation, infrared thermography and X-ray tomography [PDF]

open access: yes, 2013
The present work is devoted to damaging process in carbon–fiber reinforced laminated composites. An original experimental approach combining three optical measurement techniques is presented.
Péronnet, Elodie   +6 more
core   +1 more source

Ultrasonic Total Focusing Imaging Method of Multilayer Composite Structures Using the Root-Mean-Square (RMS) Velocity

open access: yesAdvances in Materials Science and Engineering, 2021
Multilayer composite structures have been widely used in industrial manufacturing, and nondestructive testing of these multilayer structures is to ensure their reliable quality and performance.
Xufei Guo, Yan Han
doaj   +1 more source

Acoustic Signal Imaging Method Based on Synthetic Aperture Focusing and Full Matrix Capture

open access: yesHighlights in Science, Engineering and Technology, 2022
In order to observe and understand the effect of acoustic signal detection more intuitively, imaging analysis is needed to obtain clearer detection results, and the detection situation is analyzed manually. The commonly used imaging method is B-scan imaging, which is also widely used in medical imaging.
Tian Gao   +5 more
openaire   +1 more source

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