Chattering-Free Sliding-Mode Control for Electromechanical Actuator with Backlash Nonlinearity by Dongqi Ma, Hui Lin, Bingqiang Li

“…A Lyapunov-based proof ensures the asymptotic stability and finite-time convergence of the closed-loop system. Experimental results have verified the effectiveness of the proposed method.…”
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Supporting Efficient Family Joins for Big Data Tables via Multiple Freedom Family Index by Qiang Zhu, Chao Zhu

“…The first is the direct method, which is inspired by the straightforward nested-loop strategy. The second is an index-based method, which utilizes a special index for HBase tables. …”
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Modeling transcriptional co-regulation of mammalian circadian clock by Yanqin Wang, Xin Ni, Jie Yan, Ling Yang

“…The oscillator is a transcription-translation feedback loop system composed of several genes. In this paper, a scalar nonlinear differential equation with two delays, modeling the transcriptional co-regulation in mammalian circadian clock, is proposed and analyzed. …”
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Bias Magnetic Field of Stack Giant Magnetostrictive Actuator: Design, Analysis, and Optimization by Zhaoshu Yang, Zhongbo He, Dongwei Li, Ce Rong

“…This paper concerns the methodology of bias field design for a specific GMA with stack PMs and GMMs (SGMA): both loop and field models for its bias field are established; the optimization method for given SGMA structure is outlined; a prototype is fabricated to verify the theory. …”
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Antioxidant Functions of the Aryl Hydrocarbon Receptor by Cornelia Dietrich

“…The aryl hydrocarbon receptor (AhR) is a transcription factor belonging to the basic helix-loop-helix/PER-ARNT-SIM family. It is activated by a variety of ligands, such as environmental contaminants like polycyclic aromatic hydrocarbons or dioxins, but also by naturally occurring compounds and endogenous ligands. …”
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Adaptive Fault-Tolerant Tracking Control of Nonaffine Nonlinear Systems with Actuator Failure by Hongcheng Zhou, Dezhi Xu, Daobo Wang, Le Ge

“…Then, stability analysis is given for the closed-loop system. Finally, the proposed approach is verified using a three-degree-of-freedom simulation of a typical fighter aircraft and the significantly improved system response demonstrates the practical potential of the theoretic results obtained.…”
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Influence of the Selection of Reaction Curve’s Representative Points on the Accuracy of the Identified Fractional-Order Model by Juan J. Gude, Pablo García Bringas

“…This procedure is based on fitting three arbitrary points on the process reaction curve, where process information is obtained from a simple open-loop test. A simplification of the general identification procedure is also considered, where only points symmetrically located on the reaction curve are selected. …”
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Plug and Play Robust Distributed Control with Ellipsoidal Parametric Uncertainty System by Hong Wang-jian, Wang Yan-xiang

“…If this necessary and sufficient condition is satisfied, this robust state feedback gain matrix can be easily derived to guarantee robust stability and prescribed closed loop performance. Secondly the plug and play idea is introduced in the design process. …”
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Robust H∞ Control for a Class of Nonlinear Distributed Parameter Systems via Proportional-Spatial Derivative Control Approach by Cheng-Dong Yang, Jianlong Qiu, Jun-Wei Wang

“…By using the Lyapunov direct method and the technique of integration by parts, a simple linear matrix inequality (LMI) based design method of the robust H∞ P-sD controller is developed such that the closed-loop PDE system is exponentially stable with a given decay rate and a prescribed H∞ performance of disturbance attenuation. …”
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Verbal Short-Term Memory and Motor Speech Processes in Broca’s Aphasia by C. Goerlich, I. Daum, I. Hertrich, H. Ackermann

“…Control subjects showed a phonological similarity effect, a word length effect and an articulatory suppression effect, supporting the hypothesis of a phonological store and an articulatory loop component of short-term memory. A similar effect of phonological similarity was observed in the aphasic patients, while the effects of word length and articulatory suppression were reduced. …”
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Intelligent Controller Design for Quad-Rotor Stabilization in Presence of Parameter Variations by Oualid Doukhi, Abdur Razzaq Fayjie, Deok Jin Lee

“…The proposed controller is applied to the inner and outer loop for heading and position trajectory tracking control to handle the external disturbances caused by the variation in the payload weight during the flight period. …”
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Multiloop Parallelisation Using Unrolling and Fission by Yuet Ming Lam, José Gabriel F. Coutinho, Chun Hok Ho, Philip Heng Wai Leong, Wayne Luk

“…A technique for parallelising multiple loops in a heterogeneous computing system is presented. …”
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Study on Angular Free Vibration Stability and Parameters Influence of Dry Gas Seal Based on the Characteristic Equation by Liming Teng, Jinbo Jiang, Xudong Peng, Jiyun Li, Simin Zheng

“…The effects of rotational inertia, stiffness and damping parameters on the angular free vibration stability of dry gas seal are analyzed by using the root locus method and the concept of the closed-loop dominant pole. The results show that the constraint condition of rotational inertia is the most demanding of all stability conditions. …”
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Electromagnetic deformable mirror fabricated using silicon micromachining and stress-resilient assembly by Wenkuan (Kevin) Man, Thomas Bifano

“…Prescribed references shapes were made on the prototype deformable mirror using closed-loop control.Discussion: While the simplified DM produced in this work has only 19 actuators and therefore has limited capacity to control complex shapes, the design and fabrication processes described and demonstrated in this work provide a promising approach to development of high-stroke magnetic DMs.…”
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Controllability and feedback stabilizability in a nonuniform framework by Huerta, Ignacio, Monzón, Pablo, Robledo, Gonzalo

“…In addition, we also prove that if a control system is nonuniformly completely controllable and its plant (uncontrolled part) has the property of nonuniform bounded growth, then there exist a linear feedback control leading to a nonuniformly exponentially stable closed–loop system.…”
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DC‐offset elimination method for grid synchronisation by Yunlu Li, Dazhi Wang, Yi Ning, Nanmu Hui

“…For three‐phase power system, the synchronous reference frame (SRF) phase‐locked loop (PLL) is probably the most widely used synchronisation technique under ideal grid condition. …”
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Bursting Oscillations in Shimizu-Morioka System with Slow-Varying Periodic Excitation by Xindong Ma, Shuqian Cao

“…Second, complicated dynamic behaviors are analyzed when the slow-varying parameter passes through different bifurcation points, of which the mechanisms of four different bursting patterns, namely, symmetric “homoclinic/homoclinic” bursting oscillation, symmetric “fold/Hopf” bursting oscillation, symmetric “fold/fold” bursting oscillation, and symmetric “Hopf/Hopf” bursting oscillation via “fold/fold” hysteresis loop, are revealed with different values of the parameter b by means of the transformed phase portrait. …”
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Robust adaptive tracking for Markovian jump nonlinear systems with unknown nonlinearities by Jin Zhu, Hong-Sheng Xi, Hai-Bo Ji, Bing Wang

“…Moreover, all signals of the closed-loop system could be globally uniformly ultimately bounded.…”
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Experimental Research on Automatic Alignment and Control Algorithm of Spatial Light-Fiber Coupling by Xizheng Ke, Benkang Yin

“…The results show that the use of the SPGD algorithm can realize the automatic alignment of fiber position coupling, and the SMF coupling efficiency reaches 52.58% when the system is closed loop. 2D piezoelectric ceramic fiber couplers have unique advantages of low cost, simplified structure, and easy array expansion and can effectively solve the difficulty in the alignment of spatial light-SMF coupling. …”
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Adaptive Backstepping Attitude Control Law with L2-Gain Performance for Flexible Spacecraft by Rui-Qi Dong, Yu-Yao Wu, Ying Zhang, Ai-Guo Wu

“…By utilizing Lyapunov theory, the proposed OBABC law can guarantee the asymptotical convergence of the closed-loop system in the presence of the external disturbance, incorporating with the L2-gain performance criterion constraint. …”
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