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Evaluation of Flexible Rogowski Coil Performances In Power Frequency Applications [PDF]
, 2011 This paper investigates the effects of some influence quantities on the measurement of power frequency sinusoidal currents by means of flexible Rogowski coil sensors.
MORANDO A. +9 more
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Heat Transfer Characteristics of a Speaker Using Nano-Sized Ferrofluid
Entropy, 2014 The purpose of this article is to study the heat transfer characteristics of a voice-coil and permanent magnet for a speaker using nano-sized ferrofluid.
Moo-Yeon Lee, Hyung-Jin Kim
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Bronchial artery pseudoaneurysm presenting with hoarseness: Diagnosis and endovascular management
Radiology Case Reports, 2022 Bronchial artery pseudoaneurysm is a rare entity which is diagnosed radiologically; with or without symptoms. Symptoms of phonation changes with bronchial artery pseudoaneurysm are yet to be reported.
Eric Yu Wei Lo, MBBS, BMedSci, MSc +3 more
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Advances in Mechanical Engineering, 2019 Two-stroke engines taking advantages of high power density and light weight as well as small size are widely used on aircrafts. Compared with conventional fuel injection system, gasoline direct injection technology can control the air-fuel ratio ...
Hongli Gao +5 more
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Method for reducing waveform distortion by increasing damping strength for electromagnetic vibrators
AIP Advances, 2021 Voice coil motors are frequently used as force drivers in electromagnetic vibrators. As a constant current is applied, the generated driving force is not constant but varies with displacement due to the inhomogeneous magnetic field within the stroke ...
Lu Zhang +5 more
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Comparative Measurements on Loudspeaker Distortion: Current vs. Voltage Control
Archives of Acoustics, 2017 Modulation and harmonic distortion produced by ordinary moving-coil direct-radiator drive units are measured under current control and voltage control.
Esa MERILÄINEN
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Calculation, simulation and fast estimation of thermal resistance of rotary voice coil actuators
IET Electric Power Applications, 2022 Rotary voice coil actuator (RVCA) is mainly used for reciprocating drive of small inertia loads in a limited range of angle, which is widely used in aerospace and other fields. Thermal resistance is one of the most important parameters of RVCAs, which is
Jianhui Hu +6 more
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Linbots: Soft Modular Robots Utilizing Voice Coils [PDF]
Soft Robotics, 2019 Abstract Robots performing automated tasks in uncontrolled environments need to adapt to environmental changes. Through building large collectives of robots, this robust and adaptive behavior can emerge from simple individual rules. These collectives can also be reconfigured, allowing for adaption to new tasks.
Mckenzie, Ross M. +4 more
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Materials & Design, 2023 In ultra-precision cutting, the inherent working frequency and positioning accuracy of actuators are decisive. It is challenging to generate multi-scale cutting motions with high accuracy on hierarchical scale simultaneously. In this study, a novel micro
Zhuoxuan Zhuang +6 more
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Radio program summarizing segments aired by Voice of America in 1990
, 1990 برنامج إذاعي يلخص المقاطع التي غطتها إذاعة صوت أمريكا عام 1990، منها لقاءات مع الفنان التشكيلي المصري صلاح طاهر، الشاعر المصري فارووق جويدة. قامت بالبرنامج ثريا رمضان.A radio program summarizing segments covered by the Voice of America in 1990, including
Voice of America, Egypt
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