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Aperiodic Disturbance Rejection in a Modified Repetitive-control System
Lan Zhou,Jin-Hua She 제어·로봇·시스템학회 2016 International Journal of Control, Automation, and Vol.14 No.4
This paper presents a method of designing a modified output-feedback repetitive-control system(MOFRCS) that exploits the equivalent-input-disturbance (EID) approach to improve the aperiodic-disturbancerejection performance. The aperiodic disturbances are estimated by an EID estimator and suppressed by incorporationof the estimation into a repetitive control law. First, the configuration of the EID-based MOFRCS is described. Next, a sufficient stability condition is derived by employing the separation and small gain theorems. Then, themethods of designing an MOFRCS and an EID estimator are explained. Finally, some simulation results of arotational control system are used to demonstrate the validity of the method.
Delay-dependent Stabilization for Systems with Multiple Unknown Time-varying Delays
Min Wu,Yong He,Jin-Hua She 대한전기학회 2006 International Journal of Control, Automation, and Vol.4 No.6
This paper deals with the delay-dependent and rate-independent stabilization of systems with multiple unknown time-varying delays and time-varying structured uncertainties. All the linear matrix inequalities based conditions are derived by employing free-weighting matrices to express the relationships between the terms in the Leibniz-Newton formula. The criteria do not require any tuning parameters. Numerical examples demonstrate the validity of the method.
Balanced Reactive-Deliberative Architecture for Multi-Agent System for Simulation League of RoboCup
Min Wu,Jun Peng,Jin-Hua She,Xin Chen,Wei-Hua Cao 제어·로봇·시스템학회 2009 International Journal of Control, Automation, and Vol.7 No.6
This paper presents an architecture for a multi-agent system for the RoboCup simulation league. It consists of a dynamic dual behavior-based architecture for an intelligent agent, a behavior-based decision algorithm, and a dynamic role-based multi-agent cooperation model. A new concept called confidence function is introduced to balance reactivity and deliberation. This architecture was implemented in a team, and match results demonstrate its validity.
Guided waves of porous FG nanoplates with four edges clamped
Zhao, Jing-Lei,She, Gui-Lin,Wu, Fei,Yuan, Shu-Jin,Bai, Ru-Qing,Pu, Hua-Yan,Wang, Shilong,Luo, Jun Techno-Press 2022 Advances in nano research Vol.13 No.5
Based on the nonlocal strain gradient (NSG) theory and considering the influence of moment of inertia, the governing equations of motion of porous functionally graded (FG) nanoplates with four edges clamped are established; The Galerkin method is applied to eliminate the spatial variables of the partial differential equation, and the partial differential governing equation is transformed into an ordinary differential equation with time variables. By satisfying the boundary conditions and solving the characteristic equation, the dispersion relations of the porous FG strain gradient nanoplates with four edges fixed are obtained. It is found that when the wave number is very small, the influences of nonlocal parameters and strain gradient parameters on the dispersion relation is very small. However, when the wave number is large, it has a great influence on the group velocity and phase velocity. The nonlocal parameter represents the effect of stiffness softening, and the strain gradient parameter represents the effect of stiffness strengthening. In addition, we also study the influence of power law index parameter and porosity on guided wave propagation.
Jing-Lei Zhao,Xu Chen,Gui-Lin She,Yan Jing,Ru-Qing Bai,Jin Yi,Hua-Yan Pu,Jun Luo 국제구조공학회 2022 Steel and Composite Structures, An International J Vol.43 No.6
This paper presents an investigation on the free vibration characteristics of functionally graded nanocomposite double-beams reinforced by single-walled carbon nanotubes (SWCNTs). The double-beams coupled by an interlayer spring, resting on the elastic foundation with a linear layer and shear layer, and is simply supported in thermal environments. The SWCNTs gradient distributed in the thickness direction of the beam forms different reinforcement patterns. The materials properties of the functionally graded carbon nanotube-reinforced composites (FG-CNTRC) are estimated by rule of mixture. The first order shear deformation theory and Euler-Lagrange variational principle are employed to derive the motion equations incorporating the thermal effects. The vibration characteristics under several patterns of reinforcement are presented and discussed. We conducted a series of studies aimed at revealing the effects of the spring stiffness, environment temperature, thickness ratios and carbon nanotube volume fraction on the nature frequency.
Studyon Human body Motion Interface
Sho Yokota,Hiroshi Hashimoto,Yasuhiro Ohyama,Jin-Hua SHE,Daisuke Chugo,Hisato Kobayashi,Pierre Blazevic 제어로봇시스템학회 2009 제어로봇시스템학회 국제학술대회 논문집 Vol.2009 No.8
The joystick is the operation interface of electric wheelchair. The user needs to operate it in accordance with machine’s operational procedure specifications. Therefore the joystick is convenience operation system for the system side rather than the user side We focus on the body motions which humans have, and tryto realize a new type of interface which replaces conventional joystick. There is a body motion which comes from in stinctive adjustment functions to control changes of body shape caused by voluntary actions. We use this kind of motion as an interface and call it HBMI(Human Body Motion Inerface). In this paper, we set a prototype based on the experiment for deriving a suitable measurement to detect human body motion. The evaluation of HBMI by using SD method is also presented.
Xu, Heng,Tian, Yan-Na,Dun, Bo-Ying,Liu, Hai-Tao,Dong, Guang-Kuo,Wang, Jin-Hua,Lu, Shang-Su,Chen, Bo,She, Jin-Xiong Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.11
A novel monoclonal antibody (mAb), known as AC10364, was identified from an antibody library generated by immunization of mice with human carcinoma cells. The mAb recognized proteins in lysates from multiple carcinoma cell lines. Cell cytotoxicity assays showed that AC10364 significantly inhibited cell growth and induced apoptosis in multiple carcinoma cell lines, including Bel/fu, KATO-III and A2780. Compared with mAb AC10364 or chemotherapeutic drugs alone, the combination of mAb AC10364 with chemotherapeutic drugs demonstrated enhanced growth inhibitory effects on carcinoma cells. These results suggest that mAb AC10364 is a promising candidate for cancer therapy.