Results 211 to 220 of about 124,801 (264)

Integration of Conventional Sensors and Laser Doppler Vibrometry for Structural Modal Analysis: An Innovative Approach. [PDF]

open access: yesSensors (Basel)
Martínez López E   +4 more
europepmc   +1 more source

Mode shaping in multicore fibers

Optics Letters, 2007
We propose a novel multicore fiber design strategy for obtaining a flat in-phase supermode that optimizes utilization of the active medium inversion in the multiple cores. The spatially flat supermode is achieved by engineering the fiber so that the total mutual coupling between neighboring active cores is equal.
Krishna Mohan, Gundu   +2 more
openaire   +2 more sources

The mode shapes of a tennis racket and the effects of vibration dampers on those mode shapes

The Journal of the Acoustical Society of America, 2009
The vibrational behavior of a tennis racket was studied using a speckle-pattern interferometry system. Specifically, the first 12 mode shapes of a racket are shown and discussed. In addition, the speckle-pattern interferometry system was used to compare the effects of four commercially available vibration damping systems.
Nicholas, Timme, Andrew, Morrison
openaire   +2 more sources

Detection of Soliton Shape Modes in Polyacetylene

Physical Review Letters, 1986
We observed soliton shape modes by photoinduced absorption in partially isomerized ${(\mathrm{CH})}_{x}$ and ${(\mathrm{CD})}_{x}$, coexisting with the soliton translational modes. The shape modes' ir activity, their dependence on the degree of isomerization, and the photoinduced spectra are explained in detail by a symmetry-breaking interaction which ...
, Vardeny   +6 more
openaire   +2 more sources

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