Results 11 to 20 of about 41,824 (257)
Observation of Robust Zero-Energy Extended States
Physical Review Applied, 2023 Topological edge states arise at the interface of two topologically-distinct structures and have two distinct features: they are localized and robust against symmetry protecting disorder. On the other hand, conventional transport in one dimension is associated with extended states, which typically do not have topological robustness.
Jannatul Ferdous +3 more
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Observation of a Flat and Extended Surface State in a Topological Semimetal
Materials, 2022 A flat band structure in momentum space is considered key for the realization of novel phenomena. A topological flat band, also known as a drumhead state, is an ideal platform to drive new exotic topological quantum phases. Using angle-resolved photoemission spectroscopy experiments, we reveal the emergence of a highly localized surface state in a ...
Mori, Ryo +6 more
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Machines, 2023 This paper presents a novel extended state observer (ESO) approach for a class of plants with nonlinear dynamics. The proposed observer estimates both the state variables and the total disturbance, which includes both exogenous and endogenous disturbance.
Ahmad Taher Azar +7 more
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Sliding Mode Control Based on High-Order Linear Extended State Observer for Near Space Vehicle
International Journal of Aerospace Engineering, 2021 Aiming at the uncertainty and external disturbance sensitivity of the near space vehicles (NSV), a novel sliding mode controller based on the high-order linear extended state observer (LESO) is designed in this paper.
Ouxun Li +3 more
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Performance comparison of adaptive and ESO-based backstepping controllers for disturbance rejection in spacecraft [PDF]
علوم، فناوری و کاربردهای فضاییThis paper compares spacecraft attitude control in the presence of disturbance torque using an adaptive backstepping controller and an extended state observer-based backstepping controller.
Somayeh Jamshidi, mehdi mirzaei
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Extended representations of observables and states for a noncontextual reinterpretation of QM [PDF]
Journal of Physics A: Mathematical and Theoretical, 2012 A crucial and problematical feature of quantum mechanics (QM) is nonobjectivity of properties. The ESR model restores objectivity reinterpreting quantum probabilities as conditional on detection and embodying the mathematical formalism of QM into a broader noncontextual (hence local) framework.
Claudio Garola, Sandro Sozzo
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International Journal of Advanced Robotic Systems, 2019 This article considers finite-time trajectory tracking control problem for robotic manipulators with parameter uncertainties and external disturbances.
Chao Chen +4 more
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Advances in Mechanical Engineering, 2016 The nano quadrotor is a nonlinear multi-input and multi-output system with strong coupling, which causes difficulties in control law design. In order to achieve a favorable performance, an extended state observer–based nonlinear cascade proportional ...
Xiaoran Li, Mou Chen
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Velocity Control Based on Active Disturbance Rejection for Air-Breathing Supersonic Vehicles
Complexity, 2018 This paper investigates a velocity tracking control approach for air-breathing supersonic vehicles with uncertainties and external disturbances. Considering angle of attack is difficult to be precisely measured in practice, extended state observer ...
Chao Ming, Ruisheng Sun, Xiaoming Wang
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Journal of Low Frequency Noise, Vibration and Active Control, 2020 Rolling mills vibration is a key factor that hinders the production of thin-strip steel. Currently, vibration is mainly suppressed by adjusting rolling mill parameters which is not a common approach.
Xinxin Wang, Xiaoqiang Yan
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