Results 91 to 100 of about 1,424,659 (349)

Bilateral force sensorless control based on finite‐time adaptive sliding‐mode‐assisted disturbance observer

IET Control Theory & Applications, 2021
Bilateral teleoperation systems are widely used to compensate for image spin and in many other applications. Good transparency (position tracking and force feedback) is an important performance index in the control design of bilateral teleoperation ...
Dapeng Tian, Shiquan Ni
doaj   +1 more source

In vitro models of cancer‐associated fibroblast heterogeneity uncover subtype‐specific effects of CRISPR perturbations

Molecular Oncology, EarlyView.
Development of therapies targeting cancer‐associated fibroblasts (CAFs) necessitates preclinical model systems that faithfully represent CAF–tumor biology. We established an in vitro coculture system of patient‐derived pancreatic CAFs and tumor cell lines and demonstrated its recapitulation of primary CAF–tumor biology with single‐cell transcriptomics ...
Elysia Saputra, Shamsudheen Karuthedath Vellarikkal, Lixia Li, Hong Sun, Khoa Nguyen, Amber Montano, Suchitra Natarajan, Federica Piccioni, Alex Michael Tamburino, Xin Yu, Aleksandra Katarzyna Olow   +10 more
wiley   +1 more source

Adaptive finite-time fault-tolerant control scheme of UAV against combined faults

Scientific Reports
The control of unmanned aerial vehicles (UAVs) has been an active area of research over the past decade, particularly for operations in complex environments.
Xiangfeng Yan, Tao Li, Yuan Tian
doaj   +1 more source

Reciprocal Neural State–Disturbance Observer for Model-Free Trajectory Tracking of Robotic Manipulators

Mathematics
High-precision trajectory tracking of robotic manipulators is fundamentally challenged by strong nonlinear dynamics, unmodeled uncertainties, and external disturbances.
Binluan Wang, Yuchen Peng, Hongzhe Jin, Jie Zhao   +3 more
doaj   +1 more source

Observation of a Class of Disturbance in Time Series Expansion for Fractional Order Systems

Abstract and Applied Analysis, 2014
This paper is concerned with the problem of designing disturbance observer for fractional order systems, of which the disturbance is in time series expansion. The stability of a special observer with the selected nonlinear weighted function and transient
Yiheng Wei, Hamid Reza Karimi, Jinwen Pan, Qing Gao, Yong Wang   +4 more
doaj   +1 more source

Comparative of disturbance suppression effect of Robust Steering control law by differential estimation methods

Nihon Kikai Gakkai ronbunshu, 2020
Recently, in the steering control system based on the steer by wire and the automatic operation, it is possible to flexibly change the relationship between steering input and vehicle response characteristics.
Toshio OHTA, Sundong YANG, Kenji TAKAHATA, Jianming YANG   +3 more
doaj   +1 more source

Sliding mode control based piezoelectric actuator control [PDF]

, 2004
In this paper a method for piezoelectric stack actuator control is proposed. In addition a brief discussion about the usage of the same methods for estimation of external force acting to the actuator in contact with environment is made.
Abidi, Khalid Seyed, Sabanovic, Asif, Yesilyurt, Serhat, Yeşilyurt, Serhat, Şabanoviç, Asif   +4 more
core  

Optimized active disturbance rejection control for DC-DC buck converters with uncertainties using a reduced-order GPI observer [PDF]

, 2018
The output voltage regulation problem of a PWM- based DC-DC buck converter under various sources of uncertainties and disturbances is investigated in this paper via an optimized active disturbance rejection control (ADRC) approach.
Cui, Hongyu, Li, Shihua, Yang, Jun, Zolotas, Argyrios   +3 more
core   +1 more source

Transcriptional network analysis of PTEN‐protein‐deficient prostate tumors reveals robust stromal reprogramming and signs of senescent paracrine communication

Molecular Oncology, EarlyView.
Combining PTEN protein assessment and transcriptomic profiling of prostate tumors, we uncovered a network enriched in senescence and extracellular matrix (ECM) programs associated with PTEN loss and conserved in a mouse model. We show that PTEN‐deficient cells trigger paracrine remodeling of the surrounding stroma and this information could help ...
Ivana Rondon‐Lorefice, Jose I. Lopez, Aitziber Ugalde‐Olano, Maite Zufiaurre, Ianire Astobiza, Natalia Martin‐Martin, Laura Bozal‐Basterra, Saioa Garcia‐Longarte, Amaia Zabala‐Letona, Sofia Rey, Aida Santos‐Martin, Miguel Unda, Ana Loizaga‐Iriarte, Mariona Graupera, Paolo Nuciforo, Arkaitz Carracedo, Isabel Mendizabal   +16 more
wiley   +1 more source

Quantum State Disturbance vs. Information Gain: Uncertainty Relations for Quantum Information

, 1995
When an observer wants to identify a quantum state, which is known to be one of a given set of non-orthogonal states, the act of observation causes a disturbance to that state. We investigate the tradeoff between the information gain and that disturbance.
A. K. Ekert, A. K. Ekert, A. Peres, Asher Peres, C. A. Fuchs, C. H. Bennett, C. H. Bennett, C. H. Bennett, C. W. Helstrom, Christopher A. Fuchs, E. B. Davies, L. B. Levitin, T. M. Cover, W. Feller, W. G. Unruh, W. G. Unruh, W. H. Press   +16 more
core   +1 more source