Sympathetic resonance

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Absorption of ion-cyclotron range of frequencies waves at the fundamental resonance is an efficient source of plasma heating and fast ion generation in tokamaks and stellarators. This heating method is planned to be exploited as a fast ion source in the We ...

MEMS microphones, since their first introduction in 1983 have achieved a high commercial success due to their compatibility with MEMS and IC integration, small footprint and immunity to vibrational effects. There are around one billion microphones in production every year. However most microphones require an on-board battery for functioning, which is not desirable in many situations such as communication with microphones in auto and biomedical applications. In this master thesis, design of passive MEMS Micr

We present here the fabrication of large suspended sheets of graphene for mechanical resonators. The diameter of the circular resonators varies from 1.2 μm to 26.5 μm resulting in diameter-to-thickness aspect ratios as large as 74000. The membranes were fabricated in arrays with yields of up to more than 90%. Assuming low to moderate tensile stress,

We have successfully demonstrated the fabrication of self-actuating multilayer NEMS resonators including cantilevers and double clamped beams. Resonant sensors are widely used as precision mass sensors for the detection and quantification of small concentration of analyte molecules in a gaseous solution or bacteria from biological sample which requires extremely high mass sensitivity and responsivity of the resonant sensor. Nanofabrication techniques have enabled the use of ultrathin layers for the fabricat

Due to the massive penetration of alternative renewable energies, hydropower is a key energy conversion technology for stabilizing the electrical power network by using hydraulic machines at off design operating conditions. At full load, the axisymmetric c ...

Sympathetic resonance

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Modelling of advanced three-ion ICRF heating and fast ion generation scheme for tokamaks and stellarators

Design of Passive Wireless MEMS Microphone

Graphene Based Mechanical Resonators Fabricated via Direct Dry Transfer

Design and Fabrication of Multilayer Piezoelectric NEMS Resonators

RANS computations for identification of 1-D cavitation model parameters: application to full load cavitation vortex rope