Dual-microphone active noise cancellation paved with Doppler assimilation for TADS

F Liu, X Zhao, Z Zhu, Z Zhai, Y Liu - Mechanical Systems and Signal …, 2023 - Elsevier
An improved dual-microphone adaptive Active Noise Cancellation (ANC) method called IM-
RM-LMS is proposed to solve the problem of the bearing sound signal being interfered with …

Adaptive fault feature extraction from wayside acoustic signals from train bearings

D Zhang, M Entezami, E Stewart, C Roberts… - Journal of Sound and …, 2018 - Elsevier
Wayside acoustic detection of train bearing faults plays a significant role in maintaining
safety in the railway transport system. However, the bearing fault information is normally …

Chemical characteristics and source apportionment of PM2. 5 using PMF modelling coupled with 1-hr resolution online air pollutant dataset for Linfen, China

Y Li, B Liu, Z Xue, Y Zhang, X Sun, C Song, Q Dai… - Environmental …, 2020 - Elsevier
The chemical species in PM 2.5 and air pollutant concentration data with 1-hr resolution
were monitored synchronously between 15 November 2018 and 20 January 2019 in Linfen …

Adaptive variational mode decomposition based on artificial fish swarm algorithm for fault diagnosis of rolling bearings

J Zhu, C Wang, Z Hu, F Kong… - Proceedings of the …, 2017 - journals.sagepub.com
The bearing fault diagnosis is of vital significance in maintaining the safety of rotation
machine. Among various fault detection techniques, the diagnosis based on vibration signal …

Wayside acoustic detection of train bearings based on an enhanced spline-kernelled chirplet transform

D Zhang, M Entezami, E Stewart, C Roberts… - Journal of Sound and …, 2020 - Elsevier
Wayside acoustic detection is an effective and economical technology for fault diagnosis of
train bearings. However, the technology has two main problems: Doppler Effect distortion …

[HTML][HTML] Decomposition algebras and axial algebras

T De Medts, SF Peacock, S Shpectorov… - Journal of Algebra, 2020 - Elsevier
We introduce decomposition algebras as a natural generalization of axial algebras,
Majorana algebras and the Griess algebra. They remedy three limitations of axial …

The Doppler Effect based acoustic source separation for a wayside train bearing monitoring system

H Zhang, S Zhang, Q He, F Kong - Journal of Sound and Vibration, 2016 - Elsevier
Wayside acoustic condition monitoring and fault diagnosis for train bearings depend on
acquired acoustic signals, which consist of mixed signals from different train bearings with …

A novel Doppler Effect reduction method for wayside acoustic train bearing fault detection systems

D Zhang, M Entezami, E Stewart, C Roberts, D Yu - Applied acoustics, 2019 - Elsevier
Wayside acoustic detection of train bearing faults plays a significant role in maintaining
safety in the railway transport system. Due to the relative movement between the train and …

Improved underwater signal detection using efficient time–frequency de-noising technique and Pre-whitening filter

YY Al-Aboosi, AZ Sha'ameri - Applied Acoustics, 2017 - Elsevier
Optimal signal detection is important in sonar and underwater digital communication.
However, a detailed knowledge of the statistics of the noise present is required to achieve …

Wayside acoustic defective bearing detection based on improved Dopplerlet transform and Doppler transient matching

C Wang, C Shen, Q He, A Zhang, F Liu, F Kong - Applied Acoustics, 2016 - Elsevier
The diagnosis of train bearing defects plays a significant role in maintaining the safety of
railway transport. However, the phenomenon of Doppler Effect in the acoustic signal …