Results 1 to 10 of about 607,204 (294)

On dispersion curve coloring for mechanical metafilters [PDF]

Scientific Reports, 2022
This paper formalizes smooth curve coloring (i.e., curve identification) in the presence of curve intersections as an optimization problem, and investigates theoretically properties of its optimal solution.
Andrea Bacigalupo, Maria Laura De Bellis, Giorgio Gnecco, Federico Nutarelli   +3 more
doaj   +6 more sources

Dispersion curve engineering for automated topology design of a unit cell in spoof surface plasmon polaritons [PDF]

Scientific Reports
In this paper, an automatic design method is proposed for unit cell in spoof surface plasmon polaritons (SSPP) with an almost arbitrary dispersion curve.
Salma Mirhadi, Zahra Javidi, Nader Komjani   +2 more
doaj   +2 more sources

Estimation of the Soil Layers Thickness Using Multi-Chanel Analysis of Surface Waves and Surface Wave Dispersion Curve [PDF]

Journal of Structural and Construction Engineering, 2021
One of the most interesting topics in the geotechnical and geophysical engineering is the use of surface waves to characterize the earth subsurface layers.
Mehdi Hashemi Jokar, Hossein Rahnema, Abdolhossein Baghlani   +2 more
doaj   +1 more source

Dispersion Curve Interpolation Based on Kriging Method

Applied Sciences, 2023
Volcanic eruptions significantly impact human life. However, real-time high-precision imaging in this context still has limitations. Spatial–temporal interpolation can replace real-time data imaging, in order to obtain the state of a given volcano at any
Han Zhang, You Tian, Pengfei Zhao
doaj   +1 more source

Quality influencing factors of dispersion curves from short period dense arrays based on a convolutional neural network across the north section of the Xiaojiang fault areaKey points

Earthquake Science, 2023
The number of dispersion curves increases significantly when the scale of a short-period dense array increases. Owing to a substantial increase in data volume, it is important to quickly evaluate dispersion curve quality as well as select the available ...
Si Chen, Rui Gao, Zhanwu Lu, Yao Liang, Wei Cai, Lifu Cao, Zilong Chen, Guangwen Wang   +7 more
doaj   +1 more source

Accelerated dispersion curve calculations for periodic vibro-acoustic structures

Frontiers in Mechanical Engineering, 2022
Over the years, metamaterials have shown their potential in a wide range of different disciplines, e.g. optics, electromagnetics, dynamics etc. Metamaterials are, often periodic, engineered structures made of conventional materials but which exhibit ...
Vanessa Cool, Vanessa Cool, Frank Naets, Frank Naets, Lucas Van Belle, Lucas Van Belle, Wim Desmet, Wim Desmet, Elke Deckers, Elke Deckers   +9 more
doaj   +1 more source

Phononic Crystal Made of Silicon Ridges on a Membrane for Liquid Sensing

Sensors, 2023
We propose the design of a phononic crystal to sense the acoustic properties of a liquid that is constituted by an array of silicon ridges on a membrane. In contrast to other concepts, the ridges are immersed in the liquid. The introduction of a suitable
Abdellatif Gueddida, Victor Zhang, Laurent Carpentier, Jérémy Bonhomme, Bernard Bonello, Yan Pennec, Bahram Djafari-Rouhani   +6 more
doaj   +1 more source

Accuracy Assessment of the 2D-FFT Method Based on Peak Detection of the Spectrum Magnitude at the Particular Frequencies Using the Lamb Wave Signals

Sensors, 2022
The 2D-FFT is described as a traditional method for signal processing and analysis. Due to the possibility to determine the time and frequency (t,f) domains, such a method has a wide application in various industrial fields.
Lina Draudvilienė, Asta Meškuotienė, Renaldas Raišutis, Olgirdas Tumšys, Lina Surgautė   +4 more
doaj   +1 more source

Modelling Of Phased Array Technique To Propagation Specific Mode Of Ultrasonic Waves In Single And Multi-Layer Plates [PDF]

مجله مدل سازی در مهندسی, 2015
In this paper, the propagation of ultrasonic guided wave in the isotropic single-layer and multi-layer plate with the assumption that layers are fully connected to each other and top and bottom surfaces of plate are free stress, are investigated and the ...
amin mirzakhani nafchi
doaj   +1 more source

Automatic Extraction of Surface Wave Dispersion Curves Using Unsupervised Learning and High‐Resolution Tau‐p Transform

Earth and Space Science, 2023
Dispersion curves for surface wave recordings are required input for many surface wave inversion methods to image subsurface shear wave velocity distribution, while the conventional extraction of dispersion curves requires significant amount of human ...
Hai Yao, Weiping Cao, Xuri Huang, Luo Li, Bin Wu   +4 more
doaj   +1 more source