Results 91 to 100 of about 658,400 (290)
Motor Nonlinearities in Electrodynamic Loudspeakers: Modelling and Measurement
Archives of Acoustics, 2014 This paper studies the motor nonlinearities of a classical electrodynamic loudspeaker. Measurements show the dependence of the voice-coil inductance with its position and with the driving current as well as the force factor dependence on ...
Benoit MERIT +3 more
doaj
ActuatorsThis study presents the design, optimization, and experimental validation of a large-air-gap voice coil motor (LAG-VCM) for high-precision magnetic levitation vibration isolation in vacuum environments.
Junren Mu, He Zhang
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Study and Design of a Linear Compressor of Voice-Coil Type
Advances in Electrical and Computer Engineering, 2009 The paper presents the design and Finite Element (FEM) analysis of a Linear compressor of voice coil type (LCVCT). This kind of linear compressor will be used in a refrigerator equipment. It is well-known that the replacing of the rotating compressor from a classical refrigerator by a linear compressor leads to an efficiency improving wit about 5% by ...
VADAN, I., BALAN, H., MUNTEANU, R.
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The Canadian Journal of Chemical Engineering, EarlyView.Abstract Engineering graduate students confuse the scientific method and problem solving when presenting their pre‐doctoral exams and theses: Science discourse adopts question and hypotheses to assert and establish a study's rationale, while it is problem and objectives in engineering design.
Gregory S. Patience +4 more
wiley +1 more source
IET Power ElectronicsThe linear power amplifier (LPA) suffers from low power supply utilization in the DC power supply mode, leading to reduced output efficiency. This paper constructs an efficient power supply mode based on closed‐loop dynamic power supply system (CLDPSs ...
Feixiang Yang +5 more
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Nihon Kikai Gakkai ronbunshu, 2015 In industrial scenes, pneumatic anti-vibration apparatuses having both air springs and voice coil motors are widely implemented in semiconductor exposure apparatuses for suppression of disturbance and improvement of vibration transmissibility.
Shinji WAKUI, Shota KATAYAMA
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How Institutional Environments Shape the ESG–Growth Relation: Evidence From Europe
Corporate Social Responsibility and Environmental Management, EarlyView.ABSTRACT As global financial markets increasingly integrate non‐financial criteria, companies are reinforcing the strategic role of sustainability and its impact on market value, although this cannot overlook how different institutional structures shape investor perceptions.
Laura Bango‐López +3 more
wiley +1 more source
Interactions in a multiple voice coil loudspeaker
, 1999 A seven-bit digital multiple voice coil loudspeaker and constant current driver has been constructed and evaluated. Two's compliment coding offers the best compromise between complexity, excessive power consumption and distortion due to base-line drift ...
Fryer, Peter A. +2 more
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Monitoring and assessment for obstructive sleep apnea
FlexMat, EarlyView.This review systematically classifies Obstructive Sleep Apnea (OSA) monitoring indicators into three categories: physical, biochemical, and electrophysiological indicators, and lists several methods for each category. Abstract Obstructive sleep apnea (OSA) is a common chronic sleep‐disordered breathing disease characterized by recurrent upper airway ...
Yaowen Xu +6 more
wiley +1 more source
U.S. President Dwight Eisenhower speaks on the occasion of the 15th anniversary of Voice of America
, 1957 Gift of Voice of America.U.S. President Dwight Eisenhower broadcasts to the world over the Voice of America network on the 15th Anniversary of its founding in January 1942. Ike promotes U.S.
Eisenhower, Dwight D. (Dwight David), 1890-1969
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