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An integrated approach for machine-learning-based system identification of dynamical systems under control: application towards the model predictive control of a highly nonlinear reactor system

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 2, Pages 237-250 doi: 10.1007/s11705-021-2058-6

Abstract: Advanced model-based control strategies, e.g., model predictive control, can offer superior control ofThe quality of the system model is critical to controller performance and should adequately describederiving black-box nonlinear continuous-time multiple-input multiple-output system models for nonlinear modelboth output and manipulated variables were trained on simulated data and integrated into a nonlinear modelThis demonstration of how such system models could be identified for nonlinear model predictive control

Keywords： nonlinear model predictive control black-box modeling continuous-time system identification machine

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Traditional Chinese medicine: potential approaches from modern dynamical complexity theories

Yan Ma,Kehua Zhou,Jing Fan,Shuchen Sun

Frontiers of Medicine 2016, Volume 10, Issue 1, Pages 28-32 doi: 10.1007/s11684-016-0434-2

Abstract: TCM views the human body as a complex dynamical system, and focuses on the balance of the human body,Only methods that quantify dynamical complexity can bring new insights into the evaluation of TCM.article aims to explain the existing challenges in TCM quantification, to introduce the consistency of dynamical

Keywords： traditional Chinese medicine quantification dynamical complexity system level balance modern sciences

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Applications of dynamical complexity theory in traditional Chinese medicine

Yan Ma,Shuchen Sun,Chung-Kang Peng

Frontiers of Medicine 2014, Volume 8, Issue 3, Pages 279-284 doi: 10.1007/s11684-014-0367-6

Abstract: This difficulty arises from the fact that TCM views human body as a complex dynamical system, and focusesThe dynamical complexity theory recently proposed and its computational algorithm, Multiscale EntropyWe believe that there could be many promising applications of this dynamical complexity concept in TCM

Keywords： traditional Chinese medicine Multiscale Entropy dynamical complexity system level applications

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Review of human–robot coordination control for rehabilitation based on motor function evaluation

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-022-0684-4

Abstract: As a wearable and intelligent system, a lower limb exoskeleton rehabilitation robot can provide auxiliary rehabilitation training for patients with lower limb walking impairment/loss and address the existing problem of insufficient medical resources. One of the main elements of such a human–robot coupling system is a control system to ensure human–robot coordination. This review aims to summarise the development of human–robot coordination control and the associated research achievements and provide insight into the research challenges in promoting innovative design in such control systems. The patients’ functional disorders and clinical rehabilitation needs regarding lower limbs are analysed in detail, forming the basis for the human–robot coordination of lower limb rehabilitation robots. Then, human–robot coordination is discussed in terms of three aspects: modelling, perception and control. Based on the reviewed research, the demand for robotic rehabilitation, modelling for human–robot coupling systems with new structures and assessment methods with different etiologies based on multi-mode sensors are discussed in detail, suggesting development directions of human–robot coordination and providing a reference for relevant research.

Keywords： human–robot coupling lower limb rehabilitation exoskeleton robot motor assessment dynamical model

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Integrated virtual-design methods for forecasting radiated noise of single cylinder diesel block

GUO Lei, HAO Zhiyong, XU Hongmei, LIU Lianyun

Frontiers in Energy 2008, Volume 2, Issue 4, Pages 416-421 doi: 10.1007/s11708-008-0097-z

Abstract: The two cycle dynamical results, such as the bearing load, the piston thrust, and the load spatial distributionetc., were obtained by hybrid dynamical simulation of the flexible assembly of the block and crank-trainThe finite element model of the block was validated by modal test.

Keywords： bearing dynamical frequency response dynamical simulation hybrid dynamical

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Dynamical Fast IP-Routing Lookup Algorithm

Liu Yalin

Strategic Study of CAE 2002, Volume 4, Issue 7, Pages 60-68

Abstract:

This paper proposes a dynamical fast IP-routing lookup algorithm (DFR).

Keywords： prefix expansion dynamical fast IP-routing lookup algorithm (DFR) route route lookup

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Output tracking control of mobile manipulators based on dynamical sliding-mode control

WUYuxiang, FENG Ying, HU Yueming

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 1, Pages 110-115 doi: 10.1007/s11465-007-0019-5

Abstract: A dynamical sliding-mode controller is devised to track the output of mobile manipulators.During the investigation, firstly a reduced dynamic model considering the dynamics of the driving motorMoreover, a design method of the dynamical sliding-mode controller that is applied to the output trackingThe simulation results indicate that the dynamical sliding-mode controller can not only track the given

Keywords： lower-dimensional nonlinear trajectory tracking diffeomorphism

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Asurvey on complex dynamical networkswith impulsive effects Review Articles

Xiu-ping HAN, Yong-shun ZHAO, Xiao-di LI

Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 2, Pages 199-219 doi: 10.1631/FITEE.1900456

Abstract: We review the research on complex dynamical networks (CDNs) with impulsive effects.

Keywords： Complex dynamical networks Synchronizing impulses Desynchronizing impulses Pinning control Time delay

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A Description Model for Dynamic Evolution of Robot Team Formation

Li Shuqin,Cheng Xianyi,Tang Zhenmin,Yang Jingyu

Strategic Study of CAE 2006, Volume 8, Issue 4, Pages 28-31

Abstract: This paper proposes and describes a dynamic evolution model about robot team formation.There hasn't been a similar model at home and abroad now.The model can not only wholly describe robot team, but also quantitatively describe dynamical evolution

Keywords： robot robot team dynamical evolution

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Novel interpretable mechanism of neural networks based on network decoupling method

Frontiers of Engineering Management 2021, Volume 8, Issue 4, Pages 572-581 doi: 10.1007/s42524-021-0169-x

Abstract: The lack of interpretability of the neural network algorithm has become the bottleneck of its wide application. We propose a general mathematical framework, which couples the complex structure of the system with the nonlinear activation function to explore the decoupled dimension reduction method of high-dimensional system and reveal the calculation mechanism of the neural network. We apply our framework to some network models and a real system of the whole neuron map of Caenorhabditis elegans. Result shows that a simple linear mapping relationship exists between network structure and network behavior in the neural network with high-dimensional and nonlinear characteristics. Our simulation and theoretical results fully demonstrate this interesting phenomenon. Our new interpretation mechanism provides not only the potential mathematical calculation principle of neural network but also an effective way to accurately match and predict human brain or animal activities, which can further expand and enrich the interpretable mechanism of artificial neural network in the future.

Keywords： neural networks interpretability dynamical behavior network decouple

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Dynamical analysis of droplet impact spreading on solid substrate

Zhaomiao LIU, Huamin LIU, Xin LIU,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 3, Pages 308-315 doi: 10.1007/s11465-010-0020-2

Abstract: of a droplet on a solid substrate using numerical simulation on the basis of a volume-of-fluid (VOF) model

Keywords： droplet impact spreading numerical simulation

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Dynamical research on spherical micro actuator with piezoelectric ceramic stacks drivers

ZHANG Ruihua, CHEN Haichu

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 4, Pages 433-438 doi: 10.1007/s11465-007-0074-y

Abstract: First, the space coordinate relationship of the spherical micro actuator and a dynamic model are setSecond, The Runge-Kutta arithmetic is used to calculate the dynamical parameters of the micro actuator; the SIMULINK module of MATLAB is used to build the dynamical simulating model and then simulate it.The experimental results validate the back rotation vibration model of the spherical micro actuator.

Keywords： spherical micro-gripper friction coefficient dynamic frequency

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The development of aerodynamics & configurationtechnology for large aircraft

Zhang Yanzhong

Strategic Study of CAE 2009, Volume 11, Issue 5, Pages 4-17

Abstract:

The paper introduced the development of aerodynamics & configuration technology for large aircraft.The technique of fuselage and the advanced aerodynamics configuration — blended wing body (BWB) were described. The impact of aerodynamics & configuration technology on safety, economical, comfortable and environmental characters for large aircraft was analyzed.The proposal for enhancing the research of aerodynamics in China was presented.

Keywords： aerodynamics super critical foil winglet laminar flow technique BWB CFD wind tunnel technique aero dynamical

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Dynamical Modeling and Numerical Simulation of the Environmentally Friendly Water Hydraulic Percussive

Yue Wenhui,Liu Deshun,Wu xianming,Zhu Pingyu,Li Xibing

Strategic Study of CAE 2007, Volume 9, Issue 8, Pages 57-61

Abstract:

In this paper, an environmentally friendly hydraulic percussive drill is introduced, in which water is used to perform all function of the drill, such as energy transmission, push, chip removing and lubrication. Then, dynamics of the percussive drill is modeled by means of elastic bars and springs, and microcomputer simulation of YST-25 environmentally friendly water hydraulic percussive drill is performed. The performances of YST-25 environmentally friendly water hydraulic percussive drill are evaluated. The result indicates that piston meets intensity design demand, maximum compressive stress of which is 102MPa and maximum tensile stress is 28MPa. The stress of drill rod is bigger than that of piston. To reduce the variation of sectional area is helpful to elongate the life of piston. YST-25 drill is more suitable to drill medium or hard rock so as to keep synthetically both drill speed and energy transfer efficiency. The suggestions can improve the design of environmentally friendly hydraulic percussive drill.

Keywords： impact wave mechanics simulation water hydraulic percussive drill

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Predication of Potential Danger Region (Zone) of Coal and Gas Outburst

Xian Xuefu,Xu Jiang,Wang Hongtu

Strategic Study of CAE 2001, Volume 3, Issue 2, Pages 39-46

Abstract:

The production and practice of coal mines have proved that the dynamical phenomenon in mines have

Keywords： dynamical phenomenon in mine coal and gas outburst potential danger zone failure criterion coefficient

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Title Author Date Type Operation

An integrated approach for machine-learning-based system identification of dynamical systems under control: application towards the model predictive control of a highly nonlinear reactor system

Journal Article

Traditional Chinese medicine: potential approaches from modern dynamical complexity theories

Yan Ma,Kehua Zhou,Jing Fan,Shuchen Sun

Journal Article

Applications of dynamical complexity theory in traditional Chinese medicine

Yan Ma,Shuchen Sun,Chung-Kang Peng

Journal Article

Review of human–robot coordination control for rehabilitation based on motor function evaluation

Journal Article

Integrated virtual-design methods for forecasting radiated noise of single cylinder diesel block

GUO Lei, HAO Zhiyong, XU Hongmei, LIU Lianyun

Journal Article