Results 51 to 60 of about 53,408 (293)
IEEE Access, 2018 In order to shorten the response time and improve robustness for a permanent magnet synchronous motor (PMSM) control system, an adaptive nonsingular terminal sliding model control (NTSMC) equipped with a disturbance observer is presented for PMSM. First,
Bo Xu +5 more
doaj +1 more source
Nonlinear disturbance attenuation control of hydraulic robotics
, 2018 This paper presents a novel nonlinear disturbance rejection control for hydraulic robots. This method requires two third-order filters as well as inverse dynamics in order to estimate the disturbances.
Buchli, Jonas, Lu, Peng, Sandy, Timothy
core +1 more source
Advanced Functional Materials, EarlyView.ABSTRACT Materials that can deform, sense, and autonomously generate power in response to wireless magnetic fields, through both magnetic‐actuated shape transformation and charge generation, are an emerging focus in advanced functional materials research.
Zhi Zhao, Xiaojia Shelly Zhang
wiley +1 more source
IEEE Access, 2023 Backlash inverse (BI) is a useful backlash compensator in electromechanical actuators (EMA). However, conventional BI is only relevant when the system damping is strong and the load torque is zero.
Jing Cao +4 more
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A general magnetic-energy-based torque estimator: validation via a permanent-magnet motor drive [PDF]
, 2008 This paper describes the use of the current–flux-linkage ($i{-}psi$ ) diagram to validate the performance of a general magnetic-energy-based torque estimator.
Cossar, C. +4 more
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Advanced Healthcare Materials, EarlyView.To dissect how mechanical forces influence intestinal physiology, we developed a stretchable 3D colon‐on‐chip that integrates tunable topography, stiffness and peristalsis‐like motion within a physiologically relevant microenvironment. We showed that stretching is a dominant factor governing epithelial behavior, markedly enhancing proliferation and ...
Moencopi Bernheim‐Dennery +10 more
wiley +1 more source
Journal of NeuroEngineering and Rehabilitation, 2012 Background Humans are capable of fast adaptation to new unknown dynamics that affect their movements. Such motor learning is also believed to be an important part of motor rehabilitation.
Trlep Matic, Mihelj Matjaž, Munih Marko
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Feasibility study of a hand guided robotic drill for cochleostomy [PDF]
, 2014 The concept of a hand guided robotic drill has been inspired by an automated, arm supported robotic drill recently applied in clinical practice to produce cochleostomies without penetrating the endosteum ready for inserting cochlear electrodes. The smart
Brett, P +5 more
core +6 more sources
Resolving the Structural Duality of Graphene Grain Boundaries
Advanced Materials, EarlyView.Cantilever ncAFM resolves the atomic structure of grain boundaries in graphene, revealing coexisting stable and metastable types. Both contain pentagon/heptagon defects, but metastable GBs show irregular geometries. Modeling shows metastable GBs form under compression, exhibiting vertical corrugation, while stable GBs are flat.
Haojie Guo +11 more
wiley +1 more source
Modeling and Simulation of Airborne Radar Antenna Servo Control with Disturbance Observer
Hangkong gongcheng jinzhan, 2021 Accuracy of airborne radar antenna servo control(ARASC)is one of important index for radar system to accurately search,identify and detect targets.Radar antenna bears greater air resistance during scanning motion,because of the wind speed and moving ...
ZHAO Xi, LI Qimeng
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