Results 11 to 20 of about 2,370 (218)
Physical Fitness and Device-Based Moderate-to-Vigorous Physical Activity and Risk of Long-Term Sickness Absence-A Prospective Cohort Study With 8-Year Follow-Up. [PDF]
Eur J Sport SciABSTRACT We examined the association of physical fitness (PF) and accelerometer‐based moderate‐to‐vigorous intensity physical activity (MVPA) with long‐term sickness absence (LTSA) incidence over an 8‐year of follow‐up in Finnish working‐age population.
Pohjola V +4 more
europepmc +2 more sources
Measurement + Control, 2022 This paper proposes an adaptive PID controller based on linear extended state observer (LESO) for the two-degree-of-freedom joint servomechanism of industrial robot with time-varying load, uncertainties of parameters and disturbance.
Wei Jiang +4 more
doaj +1 more source
Applied Sciences, 2022 This paper presents a method of altitude control of the powered parafoil with uncertainties and disturbances based on sliding-mode backstepping control combined with a linear extended state observer (LESO).
Erlin Zhu +3 more
doaj +1 more source
Linear-Extended-State-Observer Based Pinning Control of Nonlinear Multi-Robots System
IEEE Access, 2020 In this paper, the pinning control problem of nonlinear multi-robots system (MRS) is investigated. By introducing Linear-Extended-State-Observer (LESO) approach, a LESO based pinning control algorithm is proposed for the multi-robots system with non ...
Zhengguang Ma +3 more
doaj +1 more source
Energies, 2022 This article presents a static-errorless rotor position estimation method based on the linear extended state observer (LESO) for interior permanent magnet synchronous motor (IPMSM) drives. Two second-order LESOs are utilized to estimate the α-β axis back-
Feng Jiang +3 more
doaj +1 more source
Research on DPCC Control Strategy of PMSM Based on LESO
Journal of Physics: Conference Series, 2021 Abstract In permanent magnet synchronous motor control system, the excellent current control effect is very important to the control performance of the system. In order to eliminate the sampling delay in digital control, the deadbeat predictive current control strategy considering sampling delay is proposed. In order to solve the problem
Shaonan Wu, Zengliang Ping, Yuhua Ma
openaire +1 more source
, 2023 Hourly surface ozone (O3) concentration in China (mainland) on a 0.1 deg scale. The date range is from 2012 to 2021. This is the product of the LESO framework.
Jian Xu, Songyan Zhu
core +1 more source
IET Control Theory & Applications, 2023 To deal with thrusters’ faults of autonomous underwater vehicle (AUV), an iterative learning algorithm fault‐tolerant control (FTC) based on the linear extended states observer (LESO) is proposed. In this control scheme, the non‐linear feedback mechanism
Chao Hou +4 more
doaj +1 more source
Energies, 2019 Recently, wind energy conversion systems (WECSs) have attracted attention due to their effective application in renewable energy sources. It is a complex system with multi-variables, strong coupling, non-linearity, and variable parameters; however ...
Youjie Ma +4 more
doaj +1 more source
IEEE Access, 2020 The energy storage grid-connected inverter system is a complex system with strong nonlinearity and strong coupling, which quality and efficiency of grid-connection are affected by factors such as grid voltage fluctuations and model uncertainty.
Youjie Ma +3 more
doaj +1 more source