Results 121 to 130 of about 4,739 (293)

Absolute stability analysis of nonlinear active disturbance rejection control for electromagnetic valve actuator system via linear matrix inequality method

open access: yes, 2018
Nonlinear active disturbance rejection control is much more effective than linear active disturbance rejection control in tolerance to uncertainties and disturbances.
Aimin Du, Sichuan Xu, Da Shao
core   +1 more source

Improved LADRC Damping of Sub-Synchronous Oscillation in DFIG-Based Wind Power Systems Under Multiple Operating Conditions

open access: yesEnergies
An active damping control technique based on improved linear active disturbance rejection control (LADRC) is suggested to address the inadequate damping of doubly fed induction generator (DFIG) systems coupled to the grid using series compensation ...
Zuolin Zhang, Peng Tao, Renming Wang
doaj   +1 more source

Redistributive land reforms, agricultural productivity, and structural change: New cross‐national evidence

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Large‐scale land reforms constitute a substantial redistribution of wealth and reallocation of agricultural land, which is a major form of asset and production input in developing countries. While land redistribution (from the rich to the poor) remains a highly controversial issue, extensive evidence on its effect is limited.
Devashish Mitra   +3 more
wiley   +1 more source

Building Community Amidst the Institutional Whiteness of Graduate Study: Black Joy and Maroon Moves in an Academic Marronage

open access: yesAustralian Journal of Social Issues, EarlyView.
ABSTRACT This article reflects on the construction of a supportive community of Black Afro‐diasporic graduate students and their supervisors researching issues relating to race in the field of education in Australia. It draws on the concept of marronage—a term rooted in the fugitive act of becoming a maroon, where enslaved people enacted an escape in ...
Hellen Magoi   +6 more
wiley   +1 more source

A Robust Control Interpretation on Generalized Separation Principle of Active Disturbance Rejection Control

open access: yes, 2017
Generalized separation principle (GSP) is a main reason why active disturbance rejection control (ADRC) is easy to use. In this short note, GSP is interpreted from the respective of robust control.
Weiyao Lan, Huiyu Jin
core   +1 more source

On the Prospects for African Philosophy in Australia

open access: yesAustralian Journal of Social Issues, EarlyView.
ABSTRACT This paper grapples with the situation of people of African descent in Australia by working through the constitution of the body of academic philosophy in the country. It contends with the parochialism of the Australian philosophical community and the prospects for the cultivation of greater pluralism. Taking African philosophy as one possible
Bryan Mukandi
wiley   +1 more source

Power active filter control based on a resonant disturbance observer

open access: yes, 2015
Active filters are power electronics devices used to eliminate harmonics from the distribution network. This article presents an active disturbance rejection control scheme for active filters.
Cortés Romero, John Alexander   +7 more
core   +1 more source

Self-tuning method for a linear active disturbance rejection controller

open access: yes工程科学学报, 2015
Summary: This paper introduces a parameter self-tuning algorithm based on dynamic response time series data mining to solve the parameter self-tuning difficulty of a Linear Active Disturbance Rejection Controller (LADRC). In the algorithm, two gain signal loops' dynamic response of Linear State Error Feedback (LSEF) is used as the parameter adjustment ...
LI Yang, WANG Jing, ZHANG Yong-jun
openaire   +2 more sources

Cell therapy comparison of dental pulp stem cells, hepatocytes, and their exosomes for liver fibrosis treatment in rats

open access: yesAnimal Models and Experimental Medicine, EarlyView.
DPSCs, hepatocytes, and exosomes were tested for liver fibrosis therapy. Exosome‐based treatment exhibited superior antioxidative and regenerative effects. Liver enzymes, oxidative stress, and profibrotic markers were significantly reduced. α‐SMA, desmin, and related gene expression were downregulated.
Sahar Rahimi   +3 more
wiley   +1 more source

Stem cell–based therapies for type 1 diabetes: Progress in differentiation, clinical translation, and immune protection

open access: yesAnimal Models and Experimental Medicine, EarlyView.
Directed differentiation of pluripotent stem cells into functional pancreatic β cells have emerged as a promising strategy for the radical treatment of type 1 diabetes, with preclinical and early clinical evidence demonstrating reversal of hyperglycemia and insulin independence.
Zifan Li, Yu Kang, Yuyu Niu
wiley   +1 more source

Home - About - Disclaimer - Privacy