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| 1 | Nonsmooth identification of mechanical systems with backlash-like hysteresis显示文摘Backlash-like hysteresis is one of the nonsmooth and multi-valued nonlinearities usually existing in mechanical systems. The traditional identification method is quite difficult to be used to model the systems involved with such complex nonlinearities. In this paper, a nonsmooth recursive identification algorithm for the systems with backlash-like hysteresis is proposed. In this method, the concept of Clarke subgradient is introduced to approximate the gradients at nonsmooth points and the so-called bundle method is used to obtain the optimization search direction in nonsmooth cases. Then, a recursive algorithm based on the idea of bundle method is developed for parameter estimation. After that, the convergence analysis of the algorithm is investigated. Finally, simulation results to validate the proposed method on a simulated mechanical transmission system are presented. | Ruili DONG Yonghong TAN David HE | 2013 | 控制理论与应用(英文版)2013，11，3： | 2 |
| 2 | A neural networks based model for rate-dependent hysteresis for piezoceramic actuators显示文摘 | Ruili Dong Yonghong Tan Hui Chen Yangqiu Xie | 2008 | Sensors & Actuators: A Physical2008，，2： | 1 |
| 3 | Nonlinear Model- ing and Decoupling Control of XY Micropositioning Stages With Piezoelectric Actuators 显示文摘 | Yangqiu Xie Yonghong Tan Ruili Dong | 2013 | Mechatronics IEEE/ ASME Transactions2013，18，3： | 1 |
| 4 | A neural networks based model for rate-dependent hysteresis for piezoeeramic actuators显示文摘 | DONG Ruili TAN Yonghong | 2008 | Sensors and Actuators A2008，143，2： | 1 |
| 5 | Effects of co-exposure to lead and manganese on learning and memory deficits显示文摘Lead(Pb) and manganese(Mn) are common neurotoxins. However, individuals are subject to co-exposures in real life, and it is therefore important to study these metals in combination. Weaning Sprague-Dawley rats were given ad libitum access to drinking water solutions containing Pb(100 mg/L), Mn(2.5 mg/m L) or a mixture, and each treatment had its own minocycline(50 mg/(kg·day)) supplement group. The results showed a significant difference in spatial memory and induction levels of hippocampal long-term potentiation(LTP) in all exposure groups when compared with controls. The combined-exposure group exhibited the most pronounced effect when compared with each of the single-metal exposure groups.Microglia displayed activation at day 3 after exposure alone or in combination, while astrocytes showed activation at day 5, accompanied by decreased expression levels of GLAST,GLT-1, and GS. Furthermore, the levels of glutamate in the synaptic cleft increased significantly. When microglial activation was inhibited by minocycline, the activation of astrocytes and the expression of GLAST, GLT-1, and GS were both reversed. In addition, upon minocycline treatment, hippocampal LTP impairment and cognitive injury were significantly alleviated in each of the exposure groups. These results suggest that combined exposure to Pb and Mn can cause greater effects on cognition and synaptic plasticity when compared to single-metal exposure groups. The reason may involve abnormal activation of microglia leading to excessive regulation of astrocytes, resulting in glutamate reuptake dysfunction in astrocytes and leading to perturbed cognition and synaptic plasticity. | Ruili Guan Tao Wang Xiaoru Dong Kejun Du Juan Li Fang Zhao Jie Xu Bin Li Gang Zheng Xuefeng Shen Baohua Cao Jing Wang Michael Aschner Mingchao Liu Rui Chen | 2022 | Journal of Environmental Sciences2022，34，11： | 0 |
| 6 | A Dynamic Hysteresis Model of Piezoelectric Ceramic Actuators显示文摘A modified Prandtl-Ishlinskii(PI)model with rate-dependent thresholds for describing the hysteresis characteristics of piezoelectric actuators is proposed.Based on the classical PI model,a novel threshold depending on the input rate is constructed.With the novel rate-dependent threshold,the play operator has the capability to track the frequency variation of the input signal.Hence,the proposed modified PI model can be used to depict the rate-dependent hysteresis of piezoelectric actuators.Experimental results are presented to illustrate the model validation results of the proposed modeling. | DONG Ruili TAN Yonghong XIE Yingjie LI Xiaoli | 2023 | Chinese Journal of Electronics2023，32，6： | 0 |
| 7 | Thylakoid engineered M2 macrophage for sonodynamic effect promoted cell therapy of early atherosclerosis显示文摘Atherosclerosis is the most common cause of cardiovascular diseases that contribute to the major morbidity worldwide,but still lacking of effective treatment strategy.Here,a hybrid cell is constructed for the sonodynamic effect promoted cell therapy of early atherosclerosis by fusing M2 macrophages with thylakoid(TK)membranes.After systemic administration,the obtained TK-M2 actively accumulates in the early atherosclerotic plaques,wherein M2 macrophages relieve the cholesterol accumulation and the inflammation in the foam cells.Meanwhile,the TK membranes decorated on the M2 macrophages exhibit both type I and type II sonodynamic effects under ultrasound(US)activation,inducing the direct apoptosis of foam cells.The cooperation of M2 and TK leads to significant outcome in eliminating atherosclerotic plaques without obvious side-effects,providing a new avenue for atherosclerosis treatment. | Guanghao Wu Changwen Mu Qianru Zhao Yao Lei Ran Cheng Weidong Nie Jiamin Qu Yuping Dong Ruili Yang Haiyan Xie | 2024 | Nano Research2024，17，4： | 0 |
| 8 | A nonsmooth IMC method for mechanical systems with backlash显示文摘This paper proposes a discrete-time nonsmooth internal model control(NSIMC)approach for mechanical transmission systems described by so-called sandwich system with backlash.In this method,a dynamic compensator is introduced to compensate for the effect of the input linear subsystem.Thus,the sandwich systems with backlash can be simplifed as a pseudo-Hammerstein system with backlash.The corresponding NSIMC strategy is designed to control this system.The design procedure of the controller is presented based on the analysis on the robust stability by considering the model errors involved with the effect of backlash as well as the compensated error of the input linear subsystem.Moreover,as the model is switched among the different operating zones,the robust flters are proposed to guarantee the robust stability and satisfactory control performance of the system. | Ruili DONG Yonghong TAN David HE | 2013 | 控制理论与应用(英文版)2013，11，4： | 0 |
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