Results 51 to 60 of about 737,665 (254)

Experimental Investigation of One-Way Lamb and SH Mixing Method in Composite Laminates

open access: yesSensors
This paper experimentally investigates the resonant behavior of the one-way Lamb and SH (shear horizontal) mixing method in composite laminates with inherent quadratic nonlinearity, delamination damage and impact damage. When the fundamental S0-mode Lamb
Siyang Xie, Youxuan Zhao, Yuzi Liu
doaj   +1 more source

Modeling of stress wave propagation in matrix cracked laminates

open access: yesAIP Advances, 2021
The conventional finite element method can be used for modeling the multiscale phenomenon of the interaction of Lamb waves with matrix cracks, but it requires a lot of computational resources.
Nand Jee Kanu
doaj   +1 more source

Lamb Wave Detection for Structural Health Monitoring Using a ϕ-OTDR System

open access: yesSensors, 2022
In this paper, the use of a phase-sensitive optical time-domain reflectometry (ϕ-OTDR) sensor for the detection of the Lamb waves excited by a piezoelectric transducer in an aluminum plate, is investigated.
Rizwan Zahoor   +6 more
doaj   +1 more source

STATUS REPORT ON LAMB WAVES [PDF]

open access: yes, 1962
Theoretical and experimental aspects of Lamb waves are considered. These are described as body waves, or modes, which travel throughout an entire plate and are radiated from both surfaces, so that it is possible to detect Lamb waves when the receiver and
di Novi, R.A.
core   +1 more source

Wavelet covariance approach to measure convective boundary‐layer structure

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
This study introduces a wavelet‐based framework that applies the Haar discrete wavelet transform (DWT) to radiosonde profiles of potential temperature and water vapor mixing ratio for diagnosing convective boundary‐layer (CBL) structure. The method objectively identifies key CBL parameters, including the surface‐layer height, entrainment zone depth ...
Song‐Lak Kang   +2 more
wiley   +1 more source

Dispersion of Lamb Waves From the 2022 Hunga Tonga–Hunga Ha'apai Volcanic Eruption Reveals Coupling Between Lower and Upper Atmospheric Layers

open access: yesGeophysical Research Letters
Atmospheric Lamb waveforms are useful for reconstructing large air events, but the propagation of Lamb waves is significantly affected by varying atmospheric conditions. The detailed dispersion of Lamb waves remains vague due to lack of data, but also to
Shenjian Zhang   +5 more
doaj   +1 more source

FinTech and Environmental Sustainability: Evidence From Brazil

open access: yesSustainable Development, EarlyView.
ABSTRACT This study explores the dynamic interplay between economic growth and environmental sustainability from a FinTech perspective, using Brazil as a case study. While FinTech's contribution to green transformation, sustainable finance, and resource efficiency has gained increasing attention, a notable lack of empirical research remains to assess ...
Kemal Eyuboglu, Umut Uzar
wiley   +1 more source

Multi Reflection of Lamb Wave Emission in an Acoustic Waveguide Sensor

open access: yesSensors, 2013
Recently, an acoustic waveguide sensor based on multiple mode conversion of surface acoustic waves at the solid—liquid interfaces has been introduced for the concentration measurement of binary and ternary mixtures, liquid level sensing, investigation of
Leonhard Michael Reindl   +5 more
doaj   +1 more source

Leaky Lamb Wave Radiation from a Waveguide Plate with Finite Width

open access: yesApplied Sciences, 2020
In this paper, leaky Lamb wave radiation from a waveguide plate with finite width is investigated to gain a basic understanding of the radiation characteristics of the plate-type waveguide sensor.
Sang-Jin Park   +2 more
doaj   +1 more source

RETRACE Project: How to Enhance Resilience to Climate Risks in Pacific and Arctic Indigenous Communities?

open access: yesSustainable Development, EarlyView.
ABSTRACT Risk management has evolved to analyze risks in a systemic way, integrating local knowledge with the abstract concept of resilience, which is now an imperative for vulnerable and exposed communities. However, existing decision‐support tools are mainly focused on technical‐functional aspects and, although based on rigorous and scientific ...
Pascal Emanuel Egli   +10 more
wiley   +1 more source

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