Results 31 to 40 of about 505,709 (247)

Control and Stability Analysis of Double Time-Delay Active Suspension Based on Particle Swarm Optimization

open access: yesShock and Vibration, 2020
With the application of an active control unit in the suspension system, the phenomenon of time delay has become an important factor in the control system.
Kaiwei Wu, Chuanbo Ren
doaj   +1 more source

A novel active damping control based on grid-side current feedback for LCL-filter active power filter

open access: yesEnergy Reports, 2020
LCL filter is widely used in grid-connected converters for good harmonic mitigation performance. However, resonance poles of LCL filter challenge system stability, especially in a digital control system.
Tingting Gao   +3 more
doaj   +1 more source

Feedback-Controlled Manipulation of Multiple Defect Bands of Phononic Crystals with Segmented Piezoelectric Sensor–Actuator Array

open access: yesMathematics
Defect modes in phononic crystals (PnCs) provide strongly localized resonances that are essential for frequency-dependent wave filtering and highly sensitive sensing.
Soo-Ho Jo
doaj   +1 more source

A model for the analysis of stomatal dynamics - applied to critical simulations of experiments on oscillatory transpiration in oat plants [PDF]

open access: yesModeling, Identification and Control
To explain transpiration results from experiments on stomatal oscillations in oat plants, it is shown by simulations on a model including both hydro-passive and hydro-active feedback that the model must include hydro-active control of the osmotic ...
Torgny Brogårdh, Anders Johnsson
doaj   +1 more source

A CMOS Inverter-Based Active Feedback Transimpedance Amplifier

open access: yesPhotonics
This paper presents an inverter-based active feedback transimpedance amplifier (IAF-TIA), in which an active feedback is applied to a voltage-mode inverter-based TIA, and therefore, the controlled positive regeneration process enables the proposed IAF ...
Somi Park   +7 more
doaj   +1 more source

Multi-line spectrum feedback control algorithm for active vibration isolation

open access: yesZhongguo Jianchuan Yanjiu, 2021
ObjectivesAiming at the poor control effect of the traditional adaptive filtering algorithm for multi-frequency excitation in vibration control, and the engineering problems of difficult sensor installation and channel coupling that cause reference ...
Qingwei ZHANG, Xiang YU, Lihua YANG
doaj   +1 more source

Optogenetic feedback control of neural activity

open access: yeseLife, 2015
Optogenetic techniques enable precise excitation and inhibition of firing in specified neuronal populations and artifact-free recording of firing activity. Several studies have suggested that optical stimulation provides the precision and dynamic range requisite for closed-loop neuronal control, but no approach yet permits feedback control of neuronal ...
Jonathan P Newman   +5 more
openaire   +5 more sources

Evaluation of online teaching during the covid-19 pandemic in medical students: A case study in northern Iran

open access: yesJournal of Medical Education Development, 2023
Background & Objective: The COVID-19 pandemic has made universities of medical sciences face serious challenges as they are responsible for the preparation of the next generation of healthcare workers.
Aram Ghanavatizadeh   +2 more
doaj   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

open access: yesFEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

open access: yesFEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo   +2 more
wiley   +1 more source

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