Results 31 to 40 of about 60,457 (299)

Quasi-Static Pull-in: an Instability in Electrostatic Actuators [PDF]

open access: yes, 2020
We identify a new instability in electrostatic actuators dubbed quasi-static pull-in. We report experimental evidence of the instability and study its characteristics in two types of micro actuators operating in ambient air.
Abdel-Rahman, E. M.   +3 more
core   +1 more source

Electromechanical Coupled Forced Responses for Microplate

open access: yesAdvances in Mechanical Engineering, 2014
The electromechanical coupled forced response of the microplate subjected to electrostatic force is investigated. Using electromechanical coupled dynamic equations and the mode superposition method, the forced responses of the microplate to voltage ...
Xu LiZhong, Fu XiaoRui
doaj   +1 more source

Effect of Uneven Electrostatic Forces on the Dynamic Characteristics of Capacitive Hemispherical Resonator Gyroscopes

open access: yesSensors, 2019
The hemispherical resonator gyroscope (HRG) is a typical capacitive Coriolis vibratory gyroscope whose performance is inevitably influenced by the uneven electrostatic forces caused by the uneven excitation capacitance gap between the resonator and outer
Zeyuan Xu   +3 more
doaj   +1 more source

Excitation of plasma waves by unstable photoelectron and thermal electron populations on closed magnetic field lines in the Martian ionosphere [PDF]

open access: yesAnnales Geophysicae, 2005
It is argued that anisotropic electron pitch angle distributions in the closed magnetic field regions of the Martian ionosphere gives rise to excitation of plasma instabilities.
N. Borisov, N. Borisov, E. Nielsen
doaj   +1 more source

Representation of the QM Subsystem for Long-Range Electrostatic Interaction in Non-Periodic Ab Initio QM/MM Calculations

open access: yesMolecules, 2018
In QM/MM calculations, it is essential to handle electrostatic interactions between the QM and MM subsystems accurately and efficiently. To achieve maximal efficiency, it is convenient to adopt a hybrid scheme, where the QM electron density is used ...
Xiaoliang Pan, Edina Rosta, Yihan Shao
doaj   +1 more source

Demonstration of static electricity induced luminescence

open access: yesScientific Reports, 2022
Can we visualise static electricity, which everyone in the world knows about? Since static electricity is generated by contact or peeling, it may be a source of malfunction of electronic components, whose importance is steadily increasing, and even cause
Kazuya Kikunaga, Nao Terasaki
doaj   +1 more source

Voltage and Deflection Amplification via Double Resonance Excitation in a Cantilever Microstructure

open access: yesSensors, 2019
Cantilever electrostatically-actuated resonators show great promise in sensing and actuating applications. However, the electrostatic actuation suffers from high-voltage actuation requirements and high noise low-amplitude signal-outputs which limit its ...
Mohammad H. Hasan   +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

Electrostatic and mechanical characterization of 3-D micro-wineglass resonators [PDF]

open access: yes, 2014
In this paper, we present methods for characterization of 3-D micro-wineglass resonators. Two interchangeable modes of excitation are demonstrated: (1) Mechanical pinging using a piezo actuated probe assembly and (2) electrostatic excitation using ...
Trusov, AA   +3 more
core   +1 more source

Simulation Research on Exploiting Electrostatic Potential Difference Sensing for Shaft Centerline Orbit Reconstruction

open access: yesIEEE Access, 2019
To realize the non-contact measurement of the rotational shaft centerline orbit, a shaft centerline orbit reconstruction method using a specifically designed electrostatic sensor in conjunction with the neural network approximator is proposed in this ...
Kaihao Tang   +4 more
doaj   +1 more source

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