Results 31 to 40 of about 185,318 (292)
A review on optical torques: from engineered light fields to objects
Opto-Electronic ScienceIn recent decades, optical micro/nano manipulation has made remarkable strides in the fields of biology and the physical sciences, benefiting from both theoretical and experimental advances in optical forces.
Tao He +12 more
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A note on the cyclic evolution of the pulsar magnetosphere
, 2007 Positive and negative pulsar breaking indices suggest that some fraction of the pulsar spindown torque undergoes a cyclic evolution. The observed strong correlation of `anomalous' breaking indices with pulsar age implies that the characteristic ...
Blandford +15 more
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Stable Torque Optimization for Redundant Robots Using a Short Preview [PDF]
, 2019 We consider the known phenomenon of torque oscillations and motion instabilities that occur in redundant robots during the execution of sufficiently long Cartesian trajectories when the joint torque is instantaneously minimized.
Al Khudir, Khaled +3 more
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Nonlinearity of Magnetostrictive Torque Sensor under Varying External Magnetic Field Strength
Current Directions in Biomedical Engineering, 2021 Correctly torquing bone screws is an important factor in achieving positive patient outcomes during orthopaedic surgery. A torque-limiting smart screwdriver concept has been proposed, and ongoing work is being undertaken to model the screwing process and
Wilkie Jack A., Moeller Knut
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Robust BDCM Sensorless Control With Position-Dependent Load Torque [PDF]
2007 IEEE Power Electronics Specialists Conference, 2007 This paper presents the robust sensorless operation for brushless DC motors (BDCMs) loaded by the position- dependent load where the load torque is a function of the rotor angle (not electrical angle). Without any position sensor, the reliable position signals are generated from the motor terminal voltages through sensorless circuits.
Chih-Kai Huang, Pei-Yu Yu, Hung-Chi Chen
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Optimizing preoperative bone health assessment for adult spinal deformity: a prospective correlation analysis of intraoperative pedicle screw insertion torque and imaging modalities in Japan [PDF]
Asian Spine JournalStudy Design Prospective cohort study. Purpose This study aimed to identify the optimal preoperative bone health assessment for adult spinal deformity (ASD) surgery through correlation analysis between intraoperative pedicle screw (PS) insertion torque ...
Keishi Maruo +7 more
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, 2017 We report on a time-domain study of parametric synchronization in a magnetic tunnel junction based spin torque nano-oscillator (STNO). Time-domain measurements of the instantaneous frequency ($f_{i}$) of a parametrically synchronized STNO show random ...
Dürrenfeld, Philipp +4 more
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Prediction Model for Etiologic Differentiation of Isolated Vestibular Syndrome in Emergency Settings
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective This study aimed to develop and validate a predictive model for differentiating central from peripheral etiologies in patients with isolated vestibular syndrome (VS). Methods In this multicenter retrospective cohort study, 506 patients with isolated VS from five hospitals were divided into derivation (n = 301) and validation (n = 205)
Guo Wenting +12 more
wiley +1 more source
IEEE AccessThis paper presents reverse-phase superimposition method for fault-tolerance in permanent magnet synchronous motor to reduce torque ripple while maintaining torque level. When a motor winding fails, two problems occur: the torque level decreases, and the
Sota Takahashi, Yuki Hidaka
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Torque Control with Joints Position and Velocity Limits Avoidance
2023 IEEE International Conference on Robotics and Automation (ICRA), 2023 To be published in IEEE-ICRA 2023 proceedings, 7 pages with 6 ...
Pasandi, Venus, Pucci, Daniele
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