Results 11 to 20 of about 237,043 (257)

Noise and Vibration in Switched Reluctance Motors: A Review on Structural Materials, Vibration Dampers, Acoustic Impedance, and Noise Masking Methods

open access: yesIEEE Access, 2023
Today, the majority of the commercial electrified vehicles use Interior Permanent Magnet Motors (IPMSMs) for propulsion. An IPMSM can deliver high starting torque and high efficiency in the low- and medium-speed operation, which makes it attractive for ...
Ashish Kumar Sahu   +2 more
doaj   +1 more source

A Method for Determining the Optimal Location of a Distributed Sensor/Actuator

open access: yesShock and Vibration, 1994
The optimal location problem of distributed sensor/actuator for observation and control of a flexible structure is investigated. Using a property of controllability and observability grammian matrices, this approach employs a nonlinear optimization ...
Byeongsik Ko   +2 more
doaj   +1 more source

Noise control with Kalman filter for active headrest

open access: yesXibei Gongye Daxue Xuebao, 2021
A control strategy with Kalman filter (KF) is proposed for active noise control of virtual error signal for active headset. Comparing with the gradient based algorithm, KF algorithm has faster convergence speed and better convergence performance. In this
WANG Lei, CHEN Kean, XU Jian, QI Wang
doaj   +1 more source

FXLMS with Multiple Error Switching for Active Noise-Cancelling Casings

open access: yesArchives of Acoustics, 2019
Passive noise reduction methods require thick and heavy barriers to be effective for low frequencies and those clasical ones are thus not suitable for reduction of low frequency noise generated by devices.
Krzysztof MAZUR   +4 more
doaj   +1 more source

Active Noise Attenuation Using Lqg/ltr Control

open access: yesEletrônica de Potência, 2004
This paper presents a control system design for active noise cancellation using “Linear Quadratic Gaussian / Loop Transfer Recovery” (LQG/LTR). An implementation by an equipment like a headset is proposed, where both active and passive attenuation ...
José Paulo F. Garcia   +3 more
doaj   +1 more source

Nonlinear Active Noise Control

open access: yes, 2004
Publication in the conference proceedings of EUSIPCO, Viena, Austria ...
SICURANZA, GIOVANNI, A. CARINI
openaire   +4 more sources

Convex combination-based active impulse noise control system

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2020
Active noise control shows a good performance on the suppression of the low-frequency noise and hence it is widely applied. However, the traditional active noise control systems are unsatisfactory in controlling impulse noise in practical situations.
Ning Yu   +4 more
doaj   +1 more source

Phasor Representation for Narrowband Active Noise Control Systems

open access: yesEURASIP Journal on Audio, Speech, and Music Processing, 2008
The phasor representation is introduced to identify the characteristic of the active noise control (ANC) systems. The conventional representation, transfer function, cannot explain the fact that the performance will be degraded at some frequency for the ...
Fu-Kun Chen   +2 more
doaj   +2 more sources

Feedforward Control of a Light-Weight Device Casing for Active Noise Reduction

open access: yesArchives of Acoustics, 2016
It is possible to enhance acoustic isolation of the device from the environment by appropriately controlling vibration of a device casing. Sound insulation efficiency of this technique for a rigid casing was confirmed by the authors in previous ...
Stanislaw WRONA, Marek PAWELCZYK
doaj   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

open access: yesFEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy   +4 more
wiley   +1 more source

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