Results 11 to 20 of about 86,062 (308)

Resonant Guided Wave Networks [PDF]

open access: yesPhysical Review Letters, 2010
9 pages, 5 ...
Feigenbaum, Eyal, Atwater, Harry A.
openaire   +5 more sources

Guided Wave for plate inspection

open access: yese-Journal of Nondestructive Testing
Guided wave ultrasonic testing (GWT) for plate inspection presents a valuable non-destructive evaluation technique for monitoring large, inaccessible structural components such as petrochemical tank floors and dam penstock gates. Unlike traditional spot-
Hugo Hervé-côte, Sevan Bouchy
doaj   +2 more sources

Guided-Wave Optical Biosensors [PDF]

open access: yesSensors, 2007
Guided-wave optical biosensors are reviewed in this paper. Advantages related to optical technologies are presented and integrated architectures are investigated in detail.
Francesco De Leonardis   +3 more
doaj   +2 more sources

Shear-horizontal guided wave tomography [PDF]

open access: yes, 2022
The petrochemical industry’s pipe-network is increasingly suffering from corrosion-induced shutdowns and thus a quantitative measurement approach is vital for making adequate service-life predictions and to guarantee safety. At pipe-supports, access is
Zimmermann, Andreas Armin Ernst
core   +1 more source

Ultrasonic guided wave detection of U-shaped pipeline [PDF]

open access: yesMATEC Web of Conferences, 2020
The guided waves in the elbow was analyzed using semi- analytical finite element method, which was used to calculate the dispersion curves, along with the vibration deformation and energy flow density distribution of the elbow cross-section.
Zhu Longxiang   +3 more
doaj   +1 more source

Research on Fatigue Characterization and Life Prediction of Composites Based on Guided Wave In-situ Detection

open access: yesHangkong gongcheng jinzhan, 2022
As composite materials are playing more important role in advanced aircraft structures,the change of mechanical properties of composites during service is of significant importance for the overall safety of the aircraft.In order to achieve the goal of ...
YAO Weixing   +5 more
doaj   +1 more source

Study on Bond Defect Detection in Grouted Rock Bolt Systems under Pullout Loads

open access: yesAdvances in Materials Science and Engineering, 2022
In grouted rock bolt systems, bond defects often occur, which seriously affects the safety of rock mass structures. Therefore, in this study, based on the existence of bond defects, laboratory tests were conducted to detect the location and length of ...
Shuisheng Yu   +4 more
doaj   +1 more source

Multi-Dimensional Uniform Initialization Gaussian Mixture Model for Spar Crack Quantification under Uncertainty

open access: yesSensors, 2021
Guided Wave (GW)-based crack monitoring method as a promising method has been widely studied, as this method is sensitive to small cracks and can cover a wide monitoring range.
Qiuhui Xu   +2 more
doaj   +1 more source

Guided solitary waves [PDF]

open access: yesProceedings of the National Academy of Sciences, 1980
Transversely periodic solitary-wave solutions of the Boussinesq equations (which govern wave propagation in a weakly dispersive, weakly nonlinear physical system) are determined. The solutions for negative dispersion (e.g., gravity waves) are singular and therefore physically unacceptable. The solutions for positive dispersion (e.g., capillary waves or
openaire   +2 more sources

Propagation of Waves in Helical Wave Guides [PDF]

open access: yesJournal of Applied Physics, 1958
The field configuration near the conductors of a helical wave guide is obtained from the solution of the spatial-wave equation for a developed helix. This solution is first obtained for the case of tape conductors and then adapted to elliptical (including circular) conductors by conformal transformation.
openaire   +3 more sources

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