Results 11 to 20 of about 1,786,998 (319)

Design of PMSLM Position Controller Based on Model Predictive Control Algorithm

IEEE Access, 2021
In order to simplify the permanent magnet synchronous linear motor (PMSLM) system structure, optimize the moving performance of the control system, and further improve the position tracking accuracy of the PMSLM, a PMSLM position controller based on the ...
Zheng Li, Jinfeng An, Qingshan Zhang, Huixian Liu, Hexu Sun   +4 more
doaj   +1 more source

Backstepping Based Formation Control of Quadrotors with the State Transformation Technique

Applied Sciences, 2017
In this paper, a backstepping-based formation control of quadrotors with the state transformation technique is proposed. First, the dynamics of a quadrotor is derived by using the Newton–Euler formulation. Next, a backstepping-based formation control for
Keun Uk Lee, Yoon Ho Choi, Jin Bae Park
doaj   +1 more source

Experimental Verification of Lead-Lag Compensators on a Twin Rotor System

Electrical, Control and Communication Engineering, 2018
Twin rotor system is a laboratory setup resembling a simplified helicopter model that moves along both horizontal and vertical axes. The literature on control of twin rotor systems reflects a good amount of research on designing PID controllers and their
Deniz Meryem, Tatlicioglu Enver, Bayrak Alper   +2 more
doaj   +1 more source

A Nonlinear Controller for Point-to-Point Position Control

Energies, 2023
Position control algorithms can be classified into two groups: point-to-point control and continuous path control. For point-to-point control implemented in programmable logic controllers, the speed setpoint is mostly the only setpoint transmitted to the
Karol Kyslan, Pavol Smoleň, Viktor Šlapák, František Ďurovský   +3 more
doaj   +1 more source

Review of the Flight Control Method of a Bird-like Flapping-Wing Air Vehicle

Micromachines, 2023
The Bird-like Flapping-wing Air Vehicle (BFAV) is a robotic innovation that emulates the flight patterns of birds. In comparison to fixed-wing and rotary-wing air vehicles, the BFAV offers superior attributes such as stealth, enhanced maneuverability ...
Xiaoqing Fang, Yian Wen, Zhida Gao, Kai Gao, Qi Luo, Hui Peng, Ronghua Du   +6 more
doaj   +1 more source

Distribution characteristics of soil crusts under two kinds of aerial seeding plants in the northeastern margin of Tengger Desert

Frontiers in Environmental Science
In order to explore the effects of two plants on the spatial distribution and nutrient distribution of crusts in different directions and distances after 30 years of aerial seeding, as well as the relationship between crust thickness and nutrient content,
Ran Zhang, Yumei Liang, Yumei Liang, Yong Gao, Yong Gao, Yanyi Wang   +5 more
doaj   +1 more source

On-line extreme learning algorithm based identification and non-linear model predictive controller for way-point tracking application of an autonomous underwater vehicle

Cognitive Computation and Systems, 2019
In most of the surveillance applications of autonomous underwater vehicle (AUV), very often it is intended to follow the desired horizontal way-points, where some oceanography data need to be collected.
Biranchi Narayan Rath, Bidyadhar Subudhi
doaj   +1 more source

Enhanced fine soil aggregation and organic matter accumulation facilitated by Salix Psammophila sand barriers along desert highways

Frontiers in Environmental Science
Desert ecosystems are inherently nutrient-limited and highly susceptible to disturbances. In such arid environments, sand barriers play a pivotal role in ecological restoration efforts. Despite their importance, the long-term effects of Salix Psammophila
Chen Zhao, Yong Gao, Yanlong Han, Xiaojie Yang   +3 more
doaj   +1 more source

Combining vibrotactile feedback with volitional myoelectric control for robotic transtibial prostheses

Frontiers in Neurorobotics, 2016
In recent years, the development of myoelectric control for robotic lower-limb prostheses makes it possible for amputee users to volitionally control prosthetic joints.
Baojun Chen, Yanggang Feng, Qining Wang
doaj   +1 more source

Geochemical indicators to constrain weathering, provenance and tectonic setting of the Pisha Sandstone (Early–Middle Triassic) in Northeast Ordos Basin, China

Heliyon
The Pisha Sandstone is widely exposed in the northeastern margin of the Ordos basin. Since the Mesozoic the basin was subjected to uneven uplift several times, strong weathering and erosion have been occurring and a large amount of sediments derived from
Shuhua Fan, Fucang Qin, Zhihui Che
doaj   +1 more source