Results 81 to 90 of about 532,065 (295)

Microscale Mapping of Fiber Strain and Damage in Composite Wrinkled Laminates Using Computed Tomography Assisted Wide‐Angle X‐Ray Scattering

open access: yesAdvanced Science, EarlyView.
This study combines full‐field tomography with diffraction mapping to quantify radial (ε002$\varepsilon _{002}$) and axial (ε100$\varepsilon _{100}$) lattice strain in wrinkled carbon‐fiber specimens for the first time. Radial microstrain gradients (−14.5 µεMPa$\varepsilon \mathrm{MPa}$−1) are found to signal damage‐prone zones ahead of failure, which ...
Hoang Minh Luong   +7 more
wiley   +1 more source

Active Disturbance Rejection Control of Permanent Magnet Synchronous Motor Based on RPLESO

open access: yesEnergies
In view of the problem of the low-speed jitter of household lawn mowers driven by a permanent magnet synchronous motor (PMSM) at low speeds and high torque, and the complicated parameters of traditional non-linear active disturbance rejection controllers,
Chengpeng Zhou   +3 more
doaj   +1 more source

Pre‐Regenerative Endothelial Cells Empowered by Antler Blood Exosomes Orchestrate Peripheral Nerve Repair

open access: yesAdvanced Science, EarlyView.
The pre‐regenerative vascular niche (PVN) is essential for nerve repair, yet its endothelial blueprint remains unclear. We identified angiogenic ECs (AECs) as the dominant pre‐regenerative subset and found that antler blood–derived exosomes (AB‐EXO) promote repair via IMP3.
Jinsheng Huang   +11 more
wiley   +1 more source

An enhanced anti-disturbance attitude control for the unmanned aerial vehicle subject to multiple disturbances

open access: yesSystems Science & Control Engineering, 2020
In order to further improve the anti-disturbance capability and reduce the conservativeness of unmanned aerial vehicle (UAV) attitude control system, a new enhanced anti-disturbance control law by combining the active disturbance rejection control with ...
Wendong Gai   +3 more
doaj   +1 more source

The auto-disturbances rejection control of TCSC

open access: yesControl Engineering Practice, 1997
Abstract In this paper, a new kind of practical controller for thyristor controlled series capacitors, based on the theory of auto-disturbances rejection control, is designed. Differing from existing thyristor-controlled series capacitor (TCSC) controllers, the new controller is less dependent on the model of the controlled system, uses a local ...
Cai Zhang, Xiaoxin Zhou
openaire   +1 more source

Overcoming Artificial Structures in Resolution‐Enhanced Hi‐C Data by Signal Decomposition and Multi‐Scale Attention

open access: yesAdvanced Science, EarlyView.
Deep‐learning‐based signal enhancement is an effective way to recover high‐resolution details from a low‐resolution chromatin contact map. However, due to computational challenges, existing methods commonly divide up the contact map into small patches and create artificial discontinuities at patch boundaries.
Qinyao Li   +6 more
wiley   +1 more source

A New Closed-Loop Control Paradigm Based on Process Moments

open access: yesMathematics
The paper presents a new control concept based on the process moment instead of the process states or the process output signal. The control scheme is based on separate control of reference tracking and disturbance rejection.
Damir Vrančić   +3 more
doaj   +1 more source

Evolving an auto-disturbance-rejection controller for a simulator servo system

open access: yes, 2008
This paper presents an evolutionary controller design method for a flight simulator servo system. The method consists of a population of Auto-Disturbance-Rejection Controller(ARDC) that evolve towards an optimal controller through the use of a genetic ...
Cui YS(崔永山)   +2 more
core  

Nanoscale Secondary Ion Mass Spectrometry for Quantifying Membrane Fouling: Fouling Layer Structure and Chemical Interaction

open access: yesAdvanced Science, EarlyView.
Nanoscale secondary ion mass spectrometry (Nano SIMS) is established as a powerful analytical tool to visualize and quantify the membrane fouling layers. ABSTRACT Membrane technology has garnered considerable attention for applications in wastewater treatment and resource recovery. Nevertheless, membrane fouling remains a major barrier, yet the lack of
Mengfei Wu   +4 more
wiley   +1 more source

Steam Temperature Control Based on Modified Active Disturbance Rejection [PDF]

open access: yes, 2019
Tato práce je zaměřena na studium využitelnosti algoritmu aktivního odstranění vlivu neměřené poruchy a modifikovaného algoritmu aktivního odstranění vlivu neměřené poruchy aplikovaného na řízení teploty přehřáté páry v tepelné elektrárně.
Ovchinnikova, Nadezhda
core   +1 more source

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