Results 61 to 70 of about 332,100 (341)

Trajectory Tracking Coordinated Control of 4WID-4WIS Electric Vehicle Considering Energy Consumption Economy Based on Pose Sensors

Sensors, 2023
In order to improve the stability and economy of 4WID-4WIS (four-wheel independent drive—four-wheel independent steering) electric vehicles in trajectory tracking, this paper proposes a trajectory tracking coordinated control strategy considering energy ...
Yiran Qiao, Xinbo Chen, Zhen Liu
doaj   +1 more source

Coordinated multi-robot trajectory tracking control over sampled communication

Automatica, 2023
23 pages (main article: 14 pages; appendix: 9 pages), 18 figures; accepted for publication on Automatica; final accepted ...
Rossi E., Tognon M., Ballotta L., Carli R., Cortes J., Franchi A., Schenato L.   +6 more
openaire   +5 more sources

Checkpoint blockade and the stem‐like T cell trade‐off

Molecular Oncology, EarlyView.
Stem‐like T cells are key to the success of programmed cell death protein 1 (PD1) blockade, as they sustain long‐term anti‐tumor response by continuously generating effector CD8+ T cells. However, how these cells are maintained in cancer is not fully understood. Hor et al.
Julie M. Mazet, Johanna A. Joyce
wiley   +1 more source

Real-Time Trajectory Replanning and Tracking Control of Cable-Driven Continuum Robots in Uncertain Environments

Actuators
To address trajectory tracking of cable-driven continuum robots (CDCRs) in the presence of obstacles, this paper proposes an integrated control framework that combines online trajectory replanning, obstacle avoidance, and tracking control.
Yanan Qin, Qi Chen
doaj   +1 more source

Pick–and–Place Trajectory Planning and Robust Adaptive Fuzzy Tracking Control for Cable–Based Gangue–Sorting Robots with Model Uncertainties and External Disturbances

Machines, 2022
A suspended cable–based parallel robot (CBPR) composed of four cables and an end–grab is employed in a pick–and–place operation of moving target gangues (MTGs) with different shapes, sizes, and masses.
Peng Liu, Haibo Tian, Xiangang Cao, Xinzhou Qiao, Li Gong, Xuechao Duan, Yuanying Qiu, Yu Su   +7 more
doaj   +1 more source

Tracking implicit trajectories [PDF]

, 1995
Output tracking of implcitly defined reference trajectories is examined. A continuous-time nonlinear dynamical system is constructed that produces explicit estimates of time-varying implicit trajectories.
Getz, Neil H., Marsden, Jerrold E.
core  

A Time-Periodic Lyapunov Approach for Motion Planning of Controllable Driftless Systems on SU(n)

, 2009
For a right-invariant and controllable driftless system on SU(n), we consider a time-periodic reference trajectory along which the linearized control system generates su(n): such trajectories always exist and constitute the basic ingredient of Coron's ...
da Silva, P. S. Pereira, Rouchon, P., Silveira, H. B.   +2 more
core   +3 more sources

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

FEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei, Fredrik Orädd, Konstantinos Magkakis, Magnus Andersson   +3 more
wiley   +1 more source

Nonlinear Adaptive Optimal Control Design and Implementation for Trajectory Tracking of Four-Wheeled Mecanum Mobile Robots

Mathematics
This study proposes a nonlinear adaptive optimal control method, the adaptive H2 control method, applied to the trajectory tracking problem of the wheeled mobile robot (WMR) with four-wheel mecanum wheels.
Yung-Hsiang Chen
doaj   +1 more source

Computer aided manual tracking [PDF]

, 1981
A scheme was developed to assist the human operator by augmenting an optic sight manual tracking loop with target rate estimates from a computer control algorithm which can either be a Kalman Filter or an alpha, beta, gamma filter.
Berg, R. F., Yin, Y. K.
core   +1 more source