18 Result(s)

Article

Progress of Experimental Studies in the HL-2A Tokamak

During the last several years, the HL-2A experiment has made significant progress in the following areas: (1) lower-hybrid wave (LHW) heating and current drive, (2) plasma confinement and turbulent transport, ...

M. Xu, X. R. Duan, Yi Liu, W. L. Zhong, M. Jiang, G. L. **ao… in Journal of Fusion Energy (2020)

Article

Overview of the Recent Study on ELM Mitigation Physics with Different External Actuators on HL-2A Tokamak

Mitigation of Edge localized mode(ELM) has been achieved with different external actuators such as lower hybrid wave (LHW), mixture supersonic molecular beam injection(SMBI), and laser blow-off(LBO) impurity s...

G. L. **ao, W. L. Zhong, Y. P. Zhang, X. L. Zou, A. S. Liang… in Journal of Fusion Energy (2020)

Article

High-pressure behaviors of carbon nanotubes

In this paper, we have reviewed the experimental and theoretical studies on pressure-induced polygonization, ovalization, racetrack-shape deformation, and polymerization of carbon nanotubes (CNTs). The corresp...

Z. S. Zhao, X. -F. Zhou, M. Hu, D. L. Yu, J. L. He… in Journal of Superhard Materials (2012)

Article

Phase transformation of melamine at high pressure and temperature

Pyrolysis experiments of melamine were carried out under high pressure of 5 GPa and different temperatures. The crystal structure, chemical bonding, and composition of the melamine pyrolysate were studied by X...

D. L. Yu, J. L. He, Z. Y. Liu, B. Xu, D. C. Li, Y. J. Tian in Journal of Materials Science (2008)

Chapter

Neural Network-Based Integral Sliding Mode Control for Nonlinear Uncertain Systems

This chapter presents a new integral sliding surface with an adaptive radial basis function (RBF) neural network. In addition to the advantages of no reaching phase and nullifying matched uncertainties, more i...

S. W. Wang, D. L. Yu in Advances in Industrial Engineering and Operations Research (2008)

Chapter and Conference Paper

An On-Line LearningAlgorithm of Parallel Mode for MLPN Models

An on-line learning algorithm in parallel mode for multi-layer perceptron network (MLPN) model is proposed. The MLPN is on-line trained directly in a parallel mode. The on-line learning algorithm is based on t...

D. L. Yu, T. K. Chang, D. W. Yu in Advances in Neural Networks – ISNN 2007 (2007)

Article

A new structure adaptation algorithm for RBF networks and its application

An adaptation algorithm is developed for radial basis function network (RBFN) in this paper. The RBFN is adapted on-line for both model structure and parameters with measurement data. When the RBFN is used to ...

D. L. Yu, D. W. Yu in Neural Computing and Applications (2007)

Article

Adaptation of diagonal recurrent neural network model

An adaptive direct recurrent neural network model is developed for nonlinear dynamic system modelling in this paper. The model adaptation is achieved with the extended Kalman filter (EKF). A novel recursive al...

D. L. Yu, T. K. Chang in Neural Computing & Applications (2005)

Article

Turbostratic carbon nitride prepared by pyrolysis of melamine

Y. C. Zhao, D. L. Yu, H. W. Zhou, Y. J. Tian, O. Yanagisawa in Journal of Materials Science (2005)

Article

A Localized Forgetting Method for Gaussian RBFN Model Adaptation

In this paper a localized forgetting method is proposed for on-line adaptation of Gaussian radial basis function network models. It is realised that the commonly used exponential forgetting applies to the past...

D. L. Yu in Neural Processing Letters (2004)

Article

Neural network control of multivariable processes with a fast optimisation algorithm

A radial basis function (RBF) neural network model based predictive control scheme is developed for multivariable nonlinear systems in this paper. A fast convergence algorithm is proposed and employed in multi...

D. W. Yu, D. L. Yu in Neural Computing & Applications (2003)

Article

CN_x/TiN_y films prepared by ion-beam sputtering

CN _x /TiN _y multilayers were prepared by ion-beam sputtering and analyzed by X-ray diffraction (XRD), transmission electron microscopy (TEM), s...

D. L. Yu, J. L. He, S. M. Liu, D. C. Li, Y. J. Tian… in Journal of Materials Science (2003)

Article

Enhanced Neural Network Modelling for a Real Multi-variable Chemical Process

D. L. Yu, J. B. Gomm in Neural Computing & Applications (2002)

Article

Chemical synthesis of crystalline hexagonal B-C-N compound

J. L. He, Y. J. Tian, D. L. Yu, T. S. Wang… in Journal of Materials Science Letters (2000)

Article

Synthesis of graphite-C3N4 crystal by ion beam sputtering

D. L. Yu, F. R. **ao, T. S. Wang, Y. J. Tian… in Journal of Materials Science Letters (2000)

Article

A Recursive Orthogonal Least Squares Algorithm for Training RBF Networks

A recursive orthogonal least squares (ROLS) algorithm for multi-input, multi-output systems is developed in this paper and is applied to updating the weighting matrix of a radial basis function network. An ill...

D.L. Yu, J.B. Gomm, D. Williams in Neural Processing Letters (1997)