Results 241 to 250 of about 2,254,813 (292)

Tracing pathways: the impact of the polycrisis on mental health trajectories in emerging adulthood. [PDF]

Front Public Health
Pinheiro P, Namer Y, Nowak AC.
europepmc   +1 more source

Using Robotics to Improve Transcatheter Edge-to-Edge Repair of the Mitral Valve. [PDF]

IEEE Robot Autom Lett
Pistorius L, Nayar NU, Tran P, Elmariah S, Dupont PE.   +4 more
europepmc   +1 more source

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Step-climbing maneuver for transleg in the wheeled mode

2017 18th International Conference on Advanced Robotics (ICAR), 2017
Transleg is a transformable leg-wheel robot conceived to work in the unstructured environment. The steps exist all over this environment, so it is essential that Transleg has the ability to negotiate the steps. The step-climbing performance of Transleg in the wheeled mode is studied in this paper.
Zhong Wei, Guangming Song, Huiyu Sun, Qien Qi, Shengsong Liu, Guifang Qiao   +5 more
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Maneuvering dynamical systems by sliding-mode control

Proceedings of the 2004 American Control Conference, 2004
Solving a tracking task as a maneuvering problem for dynamical systems has shown to be a flexible design methodology, having many advantages over pure trajectory tracking and path following designs. We give a constructive design for solving the maneuvering problem by sliding-mode control.
Roger Skjetne, Andrew R. Teel
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Nonlinear control for maneuvering multiple flexible mode systems

Proceedings of the 2004 American Control Conference, 2004
This paper derives closed-loop control laws using a phase-plane approach for flexible structures having two flexible modes. The flexible modes are addressed by using multi-mode input shapers to shape the time-optimal control for the rigid body portion of the system, and then the altered rigid body phase-plane trajectories resulting from this shaping ...
Chanat La-orpacharapan, Lucy Y. Pao
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Sliding-Mode Control Strategies for Rendezvous and Docking Maneuvers

Journal of Guidance, Control, and Dynamics, 2017
RENDEZVOUS and docking maneuvers represent operational key technologies in many spacecraft missions and consist of a series of orbital maneuvers and controlled trajectories during which an active spacecraft (chaser) tries to capture a passive target vehicle.
CAPELLO, ELISA, Elisabetta, Punta, DABBENE, Fabrizio, GUGLIERI, GIORGIO, Roberto, Tempo   +4 more
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An innovative reconfigurable mobile robot with multi-maneuver modes

2008 IEEE International Conference on Robotics and Biomimetics, 2009
A mobile robot prototype with independent propulsion and individual steering(4WD4WS)has been developed. The mission-oriented mobile robot has the adaptability of terrain, sensors and payload with the scope of 20 kilograms. Different prototypes with diversified wheelbase, wheel stance, clearance, stability margin and altitude of center of gravity can be
He Xu, Dawei Tan, Zhenyu Zhang 0012, Yulin Ma, Gaoliang Peng   +4 more
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Maneuver modes analysis for hypersonic glide vehicles

Proceedings of 2014 IEEE Chinese Guidance, Navigation and Control Conference, 2014
Maneuvers can enhance the penetration capacity of hypersonic glide vehicles. Three dimensional maneuver can be divided into longitudinal maneuver and lateral maneuver. Longitudinal skip maneuver mode, lateral waving maneuver mode and lateral turning maneuver mode were analyzed, and control variables were deduced in these maneuver modes.
Guanghua Li, Hongbo Zhang, Guojian Tang, Yu Xie   +3 more
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Sliding-mode controller design for spacecraft attitude tracking maneuvers

IEEE Transactions on Aerospace and Electronic Systems, 1993
A robust sliding-mode control law that deals with spacecraft attitude tracking problems is presented. Two important natural properties related to the spacecraft model of motion are discussed. It is shown that by using these properties and the second method of Lyapunov theory, the system stability in the sliding mode can be easily achieved.
Yon-Ping Chen, Shih-Che Lo
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The Maneuvering Motion Mode Identification and Analysis of Unmanned Surface Vehicle

Proceedings of the 11th International Conference on Computer Modeling and Simulation, 2019
In this paper, the unmanned surface vehicle (USV) turning test and zig-zag test are performed and the test data are acquired. The identification mathematical model of the turning and zig-zag test has been established respectively, which has been connected with optimization algorithms including roulette genetic algorithm and growth mechanism genetic ...
Tian-yu Ma, Songlin Yang, Shuai Wang
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