Results 31 to 40 of about 650,410 (307)

A Hybrid Thermopneumatic and Electrostatic Microvalve with Integrated Position Sensing

open access: yesMicromachines, 2012
This paper presents a low-power hybrid thermopneumatic microvalve with an electrostatic hold and integrated valve plate position sensing. This combination of actuators in a single structure enables a high throw and force actuator with low energy ...
Kensall D. Wise, Joseph A. Potkay
doaj   +1 more source

Electrostatic Interactions in Protein Structure, Folding, Binding, and Condensation

open access: yesChemical Reviews, 2018
Charged and polar groups, through forming ion pairs, hydrogen bonds, and other less specific electrostatic interactions, impart important properties to proteins.
Huan-Xiang Zhou, Xiaodong Pang
semanticscholar   +1 more source

Reducing Pull-In Voltage by Adjusting Gap Shape in Electrostatically Actuated Cantilever and Fixed-Fixed Beams

open access: yesMicromachines, 2010
A gap with variable geometry is presented for both cantilever beam and fixed-fixed beam actuators as a method to reduce the pull-in voltage while maintaining a required displacement.
Darcy T. Haluzan   +3 more
doaj   +1 more source

Scanning and Actuation Techniques for Cantilever-Based Fiber Optic Endoscopic Scanners—A Review

open access: yesSensors, 2021
Endoscopes are used routinely in modern medicine for in-vivo imaging of luminal organs. Technical advances in the micro-electro-mechanical system (MEMS) and optical fields have enabled the further miniaturization of endoscopes, resulting in the ability ...
Mandeep Kaur   +2 more
doaj   +1 more source

Multimode Hydraulically Amplified Electrostatic Actuators for Wearable Haptics

open access: yesAdvances in Materials, 2020
The sense of touch is underused in today’s virtual reality systems due to lack of wearable, soft, mm‐scale transducers to generate dynamic mechanical stimulus on the skin.
Edouard Leroy, R. Hinchet, H. Shea
semanticscholar   +1 more source

Dynamics of Microbeams under Multi-Frequency Excitations

open access: yesMicromachines, 2017
This paper presents an investigation of the dynamics of microbeams under multiple harmonic electrostatic excitation frequencies. First, the response of a cantilever microbeam to two alternating current (AC) source excitation is examined.
Alwathiqbellah Ibrahim   +4 more
doaj   +1 more source

van der Waals potential: an important complement to molecular electrostatic potential in studying intermolecular interactions

open access: yesJournal of Molecular Modeling, 2020
Electrostatics and van der Waals (vdW) interactions are two major components of intermolecular weak interactions. Electrostatic potential has been a very popular function in revealing electrostatic interaction between the system under study and other ...
T. Lu, Qinxue Chen
semanticscholar   +1 more source

Kinesin as an Electrostatic Machine [PDF]

open access: yesJournal of Biological Physics, 2006
Kinesin and related motor proteins utilize ATP fuel to propel themselves along the external surface of microtubules in a processive and directional fashion. We show that the observed step-like motion is possible through time varying charge distributions furnished by the ATP hydrolysis circle while the static charge configuration on the microtuble ...
Alva, Aleix   +2 more
openaire   +4 more sources

Visualizing electrostatic gating effects in two-dimensional heterostructures [PDF]

open access: yesNature, 2019
The ability to directly monitor the states of electrons in modern field-effect devices—for example, imaging local changes in the electrical potential, Fermi level and band structure as a gate voltage is applied—could transform our understanding of the ...
P. Nguyen   +14 more
semanticscholar   +1 more source

Condenser microphone with small size and high sensitivity Using a circular diaphragm with fixed center [PDF]

open access: yesJournal of Intelligent Procedures in Electrical Technology, 2016
In this paper, a new single-chip MEMS capacitor microphone on a silicon wafer by minimizing the size and the reduction of mechanical strength using a circular diaphragm with a fixed center is proposed. In the proposed microphone, the diaphragm includes a
Nastaran Nademi, Javad Karamdel
doaj  

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