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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Lee, H. J.
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Publications (7/7 displayed)
- 2022Atomistic deformation mechanism of silicon under laser-driven shock compressioncitations
- 2022Atomistic deformation mechanism of silicon under laser-driven shock compression.citations
- 2017In situ X-ray diffraction measurement of shock-wave-driven twinning and lattice dynamicscitations
- 2016Direct structural investigation of shock compressed silicates from x-ray diffraction
- 2014Microstructural evolution and mechanical properties in a Zn-Al eutectoid alloy processed by high-pressure torsioncitations
- 2014Melting of iron close to Earth's inner core boundary conditions detected by XANES spectroscopy in laser shock experiment
- 2007Capacitive micromachined ultrasonic transducers for chemical detection in nitrogencitations
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article
Capacitive micromachined ultrasonic transducers for chemical detection in nitrogen
Abstract
<jats:p>The authors present the prototype of a chemical sensor using a capacitive micromachined ultrasonic transducer array. Each element in the array consists of a large number of resonating membranes connected in parallel. A five-channel oscillator circuit operates at the resonant frequency around 6MHz in this prototype. The surface of the elements in the array is coated by polymers such as polyallylamine hydrochloride, polyethylene glycol, and polyvinyl alcohol to detect different chemicals. By measuring shift in oscillation frequencies due to the mass-loading effect, analytes, e.g., water and isopropanol, with concentrations around 20ppbv (parts per 109 by volume) range can be detected.</jats:p>