Systematic review of predictive maintenance and digital twin technologies challenges, opportunities, and best practices

NH Abd Wahab, K Hasikin, KW Lai, K Xia, L Bei… - PeerJ Computer …, 2024 - peerj.com
Background Maintaining machines effectively continues to be a challenge for industrial
organisations, which frequently employ reactive or premeditated methods. Recent research has …

Image contour detection based on improved level set in complex environment

D Li, L Bei, J Bao, S Yuan, K Huang - Wireless Networks, 2021 - Springer
An improved image segmentation model was established to achieve accurate detection of
target contours under high noise, low resolution, and uneven illumination environments. The …

MIMO scheduling effectiveness analysis for bursty data service from view of QoE

…, D Jiang, R Bao, J Xiong, F Liu, L Bei - Chinese Journal of …, 2017 - Wiley Online Library
In the user selection phrase of the conventional Multiple‐input‐multiple‐output (MIMO)
scheduling schemes, the frequent user exchange deteriorates the Quality of user experience (…

A Hyperparameters automatic optimization method of time graph convolution network model for traffic prediction

L Chen, L Bei, Y An, K Zhang, P Cui - Wireless Networks, 2021 - Springer
Smart transportation is an essential component of the smart city. Traffic prediction is an important
issue in smart transportation. The convolutional neural networks (GCN) are an effective …

A novel microstrip array circular polarized antenna based on t-type power divider

L Bei, L Zhang, K Huang - Wireless Networks, 2021 - Springer
In underground wireless communication in the coal mines, it is necessary for antenna to
have good penetration and multi-path resistance to coal dust and water mist. The circular …

Out-of-phase power divider with harmonic suppression

L Bei, L Chen, W Zhao, X Zhang, W Ji… - Progress In …, 2017 - jpier.org
In this paper, a three-layer circuit structure based on double-sided parallel-strip lines (DSPSLs)
is proposed to design one out-of-phase power divider (PD) with equal power division …

Out-of-phase power divider with complex impedance transformation based on miniaturized isolation network

L Bei, R Bao, L Chen, C Tian, X Zhang, W Ji… - …, 2017 - Taylor & Francis
A compact three-layer circuit structure based on the double-sided parallel-strip lines (DSPSLs)
is proposed in this article to design an out-of-phase power divider (PD) with miniaturized …

A novel dual-band multi-way power divider using coupled lines

L Bei, S Zhang, K Huang - Progress In Electromagnetics Research C, 2013 - jpier.org
In this paper, coupled lines are used in the design of a dual band planar multi-way Bagley
polygon power divider to reduce the size is proposed. For the input port matching and …

The Music of" Lulu": A New Analysis

G Perle - Journal of the American Musicological Society, 1959 - JSTOR
… , "The structural pattern of Lulu having been expounded in great … of the music of Lulu has
two virtues that account for … composer himself ("bei der Analyse von Lulu konnte ich mich auf …

Complex impedance-transformation out-of-phase power divider with high power-handling capability

L Bei, S Zhang, K Huang - Progress In Electromagnetics Research Letters, 2015 - jpier.org
A novel 180 out-of-phase power divider with complex-source to complex-load impedance
transformation and high power-handling capability is proposed in this paper. It is composed of …