Buscar
Mostrando ítems 1-10 de 31858
On the attenuation of vibration using a finite periodic array of rods comprised of either symmetric or asymmetric cells
(2021-10-27)
Periodic structures have an important role to play in the reduction of vibration within a targeted frequency range. Much of the literature concerning vibrations in periodic structures involves the description of wave ...
Free and forced wave motion in a two-dimensional plate with radial periodicity
(2021-11-01)
In many practical engineering situations, a source of vibrations may excite a large and flexible structure such as a ship’s deck, an aeroplane fuselage, a satellite antenna, a wall panel. To avoid transmission of the ...
Predicting the stop-band behaviour of finite mono-coupled periodic structures from the transmissibility of a single element
(2021-06-01)
The study of mono-coupled periodic structures has gained renewed interest by the scientific community due to the new applications of metamaterials and meta-structures. Much research has focused on the wave propagation ...
Refraction index sensor based on phase resonances in a subwavelength structure with double period
(OSA - The Optical Society, 2016-10)
In this paper, we numerically demonstrate a refraction index sensor based on phase resonance excitation in a subwavelength-slit structure with a double period. The sensor consists of a metal layer with subwavelength slots ...
Striking properties of light transmitted by a double period nanoslit structure under evanescent incidence
(IOP Publishing, 2015-04)
The excitation of phase resonances in dual-period wire structures under evanescent incidence is investigated and numerically reported for the first time. The diffraction problem of a compound structure comprising subwavelength ...
Comparison of structural colors achieved by laser-induced periodic surface structures and direct laser interference patterning
(Japan Laser Processing Soc, 2020-09)
Engraving surfaces with holographic features is not only used for decorative applications, but also for protecting products from counterfeit and piracy. Tins structural coloration can be produced on large areas at ...
Control of the diffracted response of a metallic wire array with double period: experimental demonstration
(Optical Society of America, 2014-10)
In recent papers, it has been theoretically shown that by using dual-period wire gratings, it is possible to control the relative efficiencies of the diffracted orders, regardless of the wires` material, incident polarization ...
On The Use Of The Wave Finite Element Method For Passive Vibration Control Of Periodic Structures
(Techno-PressDaejeon, 2016)
Evaluating the existence of structural change in the brazilian term structure of interest: evidence based on cointegration models with structural break
(2012-09-17)
This paper investigates whether there is evidence of structural change in the Brazilian term structure of interest rates. Multivariate cointegration techniques are used to verify this evidence. Two econometrics models are ...
Correction coefficients of distortion and vibration period for buildings due to soil-structure interaction
(OP Publishing Ltd, 2020-09-22)
The present research analyzed the influence of the soil structure interaction (SSI) in buildings, varying geotechnical parameters and height, considering 3 international codes. The responses obtained from the structures ...