Results 151 to 160 of about 3,799,861 (190)
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Experiments in Molecular Physics with an Acoustic Interferometer
American Journal of Physics, 1973An acoustic interferometer provides an inexpensive means for making precise studies of the kinetics of gas molecules. Two experiments are described: (1) Measurement of the vibrational relaxation time of gas molecules and (2) determination of intermolecular (van der Waals) forces in molecules.
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Optically detected acoustic paramagnetic resonance in molecular crystals
Chemical Physics Letters, 1973Abstract The optically detected acoustic paramagnetic resonance of the metastable triplet state of 1,2,4,5-tetrachlorobenzene (TCB) in zero field is reported. The spin-phonon interaction in molecular crystals is discussed in terms of the direct process single phonon absorption by the paramagnetic spin system.
A.H. Francis, M.J. Buckley
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Induced molecular transport due to surface acoustic waves
Journal of Applied Physics, 1981An investigation into the possiblity of inducing a net transport of molecules via their interaction with a propagating surface acoustic wave is reported here. A theory is presented predicting such a transport and giving a formula for the pumping rate of a device consisting of two evacuated chambers connected by a channel of rectangular cross section ...
Paul Terry, M. W. P. Strandberg
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, 2020
While bird vocalizations (produced by the syrinx) have been the focus of countless studies, mechanical sounds (produced by external body structures) have received much less attention.
Emilio A. Jordan +3 more
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While bird vocalizations (produced by the syrinx) have been the focus of countless studies, mechanical sounds (produced by external body structures) have received much less attention.
Emilio A. Jordan +3 more
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On the molecular kinetics of acoustic cavitation and the nuclear emission
International Journal of Hydrogen Energy, 2003Abstract A molecular kinetic theory has been developed for the acoustic bubble implosion that induces D–D fusion by irradiating the pulsed neutron beam, which was discovered recently by the Oak Ridge National Laboratory Group with deuterated acetone (C3D6O).
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Acoustic fingerprints of photoacoustic contrast agents for molecular imaging
SPIE Proceedings, 2007Protein nanospheres capable of frequency controlled oscillation in response to laser stimulation are presented as contrast agents for photoacoustic imaging. Incident laser energy absorbed by dye-labeled protein nanospheres causes thermoelastically generated sound production.
Ladislav Jankovic +4 more
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Molecular recognition of neurotransmitter GABA using acoustic sensors
Proceedings of the Second Joint 24th Annual Conference and the Annual Fall Meeting of the Biomedical Engineering Society] [Engineering in Medicine and Biology, 2002The conventional detection methods for neurotransmitter /spl gamma/-aminobutyric acid (GABA) are concentrated on HPLC and enzymatic reactions. We report here a novel acoustic immunosensor for dynamic measurement of GABA in buffer solution using an immunohistochemical strategy. The adsorption process of anti-GABA on a well-defined gold electrode surface
Anhong Zhou, Jit Muthuswamy
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The measurement of molecular orientation in fibers by acoustic methods
Journal of Applied Polymer Science, 1960AbstractIn the present work, the sound velocity in polymeric fibers or film strips is related to a quantitative measure of molecular orientation in the sample. It is shown that this measure of orientation can be calculated from two experimental quantities: the sound velocity in an oriented specimen and the velocity in a randomly oriented sample.
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Acoustic determination of polymer molecular weights and rotation times
Journal of Polymer Science Part B: Polymer Physics, 2002AbstractAn acoustic waveguide device was shown to be sensitive to the molecular weight of poly(ethylene glycol) in solution over a molecular weight range determined by the operating frequency of the device. The acoustic device used generates a shear wave with displacement in the plane of the device surface and normal to the direction of propagation ...
Fabrice Martin +4 more
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Molecular Beam Epitaxy Growth of High Crystalline Quality LiNbO3
Journal of Electronic Materials, 2016Lithium niobate is a multi-functional material with wide reaching applications in acoustics, optics, and electronics. Commercial applications for lithium niobate require high crystalline quality currently limited to bulk and ion sliced material.
M. B. Tellekamp +3 more
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