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‘Something simple and striking, if not amusing’ – the Freedom 7 special exhibition at the Science Museum, 1965
Published 2014-03-01Subjects: “…Freedom 7…”
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White Supremacy, Lynchings, and Thomas Crawford’s <em>Statue of Freedom</em>
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A novel compliant surgical robot: Preliminary design analysis
Published 2020-01-01“…Based on the requirements of MIS, a compliant, seven- degrees of freedom (7-DOF) pneumatically actuated mechanism is designed. …”
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Influence of yawing force frequency on angular motion and ballistic characteristics of a dual-spin projectile
Published 2016-04-01“…In order to investigate the influence of yawing forces on angular motion, a theoretical solution of the total yaw angle function with the cyclical yawing forces is deduced utilizing the 7 degrees of freedom (7-DOF) model designed for this calculation. …”
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5
Movement Characteristics of a Dual-Spin Guided Projectile Subjected to a Lateral Impulse
Published 2021-10-01“…To guide the overall design of the projectile and the control system, a linear motion model of the projectile that was subjected to a lateral impulse was obtained based on a full nonlinear seven-degree-of-freedom (7-DOF) dynamic model. The trajectory correction process of a lateral impulse was divided into two stages. …”
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Trajectory Planning of 7-DOF Space Manipulator for Minimizing Base Disturbance
Published 2016-03-01“…For planning trajectories of the space manipulator with 7 degrees of freedom (7-DOF), simulated annealing particle swarm optimization (SAPSO) algorithm is presented in the paper. …”
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Fast Fractional-Order Terminal Sliding Mode Control for Seven-Axis Robot Manipulator
Published 2020-11-01“…This paper proposes a novel controller, fast fractional-order terminal sliding mode control (FFOTSMC), for a seven-degree-of-freedom (7-DOF) robot manipulator with tracking control. …”
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Biomechanical design and control of an eight DOF human lower extremity rehabilitation exoskeleton robot
Published 2022-06-01“…Among the 8 degrees of freedom, 7 are actively actuated and 1 is passively actuated. …”
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Effects of an electric field on white sharks: in situ testing of an electric deterrent.
Published 2013-01-01“…The present study tested the effects of the Shark Shield Freedom7™ electric deterrent on (1) the behaviour of 18 white sharks (Carcharodon carcharias) near a static bait, and (2) the rates of attacks on a towed seal decoy. …”
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Efficient Similarity Point Set Registration by Transformation Decomposition
Published 2020-07-01“…Therefore, seven-Degrees of Freedom (7-DoF) similarity transformation is a big challenge for BnB. …”
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A comparative study of the unscented Kalman filter and particle filter estimation methods for the measurement of the road adhesion coefficient
Published 2022-08-01“…With a focus on the problems of interference uncertainty and system nonlinearity in the estimation of the road adhesion coefficient, this work adopts a vehicle model with 7 degrees of freedom (7-DOF) and the Dugoff tire model and uses these models to estimate the road adhesion coefficient in real time based on the particle filter (PF) algorithm. …”
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Lateral Stability Analysis of 4WID Electric Vehicle Based on Sliding Mode Control and Optimal Distribution Torque Strategy
Published 2022-08-01“…First, a seven-degree-of-freedom (7DOF) 4WID electric vehicle model is established. …”
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Analysis of Singular Configuration of Robotic Manipulators
Published 2021-09-01“…Then, the proposed method was applied to a seven-degree-of-freedom (7-DOF) serial manipulator and a planar 5R parallel manipulator. …”
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AI-Based Posture Control Algorithm for a 7-DOF Robot Manipulator
Published 2022-08-01“…In this paper, we propose a new method that can replace both the FK and IK equations of a seven-degrees-of-freedom (7-DOF) robot manipulator. This method is based on reinforcement learning (RL) and artificial neural networks (ANN) for supervised learning (SL). …”
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Pseudospectral Convex Programming for Free-Floating Space Manipulator Path Planning
Published 2023-01-01“…To efficiently plan the point-to-point path for a 7-degrees-of-freedom (7-DOF) free-floating space manipulator system, a path planning method based on Legendre pseudospectral convex programming (LPCP) is proposed. …”
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Fast Fractional-Order Terminal Sliding Mode Control With RBFNN Based Sliding Perturbation Observer for 7-DOF Robot Manipulator
Published 2021-01-01“…It aims to control a seven-degree-of-freedom (7-DOF) robot manipulator. The new perturbation estimator applies the data-driven method RBFNN to compensate for the estimation error in the conventional SPO for the first time. …”
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Maximum Correntropy Square-Root Cubature Kalman Filter with State Estimation for Distributed Drive Electric Vehicles
Published 2023-07-01“…To address such problems, this paper uses the square-root cubature Kalman filter with the maximum correlation entropy criterion (MCSRCKF), establishing a seven degrees of freedom (7-DOF) nonlinear distributed vehicle dynamics model for accurately estimating longitudinal vehicle speed, lateral vehicle speed, yaw rate, and wheel rotation angular velocity using low-cost sensor signals. …”
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Torque coordinated control of the through-the-road (TTR) 4-wheel-drive (4WD) hybrid vehicle under extreme road conditions
Published 2023-07-01“…Firstly, the vehicle dynamic model with seven degrees of freedom (7-DOF) is used to offline extract torque distribution rules (Offline-ETDR), and the online MPC feedback (Online-MPCF) is utilized to compensate the extra torque requirements for the poor effect under the extreme conditions. …”
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Characterization of continuum robot arms under reinforcement learning and derived improvements
Published 2022-09-01“…In this study, we examined the advantages of a continuum robot arm as compared to a typical and rigid seven-degree-of-freedom (7-DoF) robot manipulator in terms of performing various tasks through reinforcement learning. …”
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The Dexterity Capability Map for a Seven-Degree-of-Freedom Manipulator
Published 2022-11-01“…On this basis, for a seven-degree-of-freedom (7-DOF) redundant manipulator, it is very meaningful to study how to give full play to its redundant characteristics to achieve more dexterous grasping. …”
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