Results 61 to 70 of about 79,719 (263)

RESEARCH ON OPTIMAL SELECTION OF UITRASONIC GUIDED WAVE DETECTION FREQUENCY IN DIRT PIPES BASED ON CHIRP EXCITATION

Jixie qiangdu, 2019
It is required to conduct repeated multi-frequency test to determine the best detection frequency when taking traditional tone burst as the guided wave excitation of dirt pipe, which had problems of blindness, time and resources consuming.
SUN LingFang, ZHANG Ying, WU ChunYing, PIAO Heng   +3 more
doaj  

Editorial: Guided-Wave Optics

Applied Sciences, 2017
Guided waves represent a vast class of phenomena in which the propagation of collective excitations in various media is steered in required directions by fixed (or, sometimes, reconfigurable) conduits [...]
Boris A. Malomed
doaj   +1 more source

The Elastic Wave Propagation in Rectangular Waveguide Structure: Determination of Dispersion Curves and Their Application in Nondestructive Techniques

Applied Sciences, 2020
The use of mechanic waves for assessing structural integrity is a well-known non-destructive technique (NDT). The ultrasound applied in the guided wave in particular requires significant effort in order to understand the complexities of the propagation ...
Eduardo Becker Groth, Thomas Gabriel Rosauro Clarke, Guilherme Schumacher da Silva, Ignacio Iturrioz, Giuseppe Lacidogna   +4 more
doaj   +1 more source

Cu2O/Cu Chiral Catalysts for Highly Selective Solar‐Assisted CO2‐to‐CO Electroreduction

Advanced Functional Materials, EarlyView.
To address the poor target‐product selectivity of the eCO2RR, breakthrough approaches based on the chiral‐induced spin selectivity phenomenon enhance the Faradaic efficiency (FE) for target hydrocarbons, such as CO. To induce this spin polarization strategy in Cu2O/Cu catalysts, it is proposed using amine‐based intermediate organic molecules with ...
Hyungsoo Lee, Young Sun Park, Eunji Kwon, Chang‐Seop Jeong, Juwon Yun, Subin Moon, Soobin Lee, Jun Hwan Kim, Donghyun Kim, Wooyong Jeong, Jaehyun Son, Jihwon Park, Seungho Yu, Jooho Moon   +13 more
wiley   +1 more source

Guided-Wave Optical Biosensors

Sensors, 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, Biagio Casamassima, Francesco Dell’Olio, Vittorio M. N. Passaro   +3 more
doaj   +1 more source

Theoretical and experimental investigation of guided wave temperature compensation for composite structures with different thicknesses

, 2023
Feifei Ren, Ilias N. Giannakeas, Zahra Sharif Khodaei, M.H. Aliabadi   +3 more
openalex   +1 more source

EMAT Generated Guided Waves in Pipes [PDF]

, 2023
Azhar M. Memon, Luai M. Alhems
openalex   +1 more source

Patterning the Void: Combining L‐Systems with Archimedean Tessellations as a Perspective for Tissue Engineering Scaffolds

Advanced Functional Materials, EarlyView.
This study introduces a novel multi‐scale scaffold design using L‐fractals arranged in Archimedean tessellations for tissue regeneration. Despite similar porosity, tiles display vastly different tensile responses (1–100 MPa) and deformation modes. In vitro experiments with hMSCs show geometry‐dependent growth and activity. Over 55 000 tile combinations
Maria Kalogeropoulou, Kenny A. van Kampen, Pierpaolo Fucile, Carlos Mota, Lorenzo Moroni   +4 more
wiley   +1 more source

Assessing Damages in Pipes through Circular Distribution of Ultrasonic Guided Wave Reflections from Defects

Chemical Engineering Transactions, 2016
Damages in pipes such as cracks and corrosions may threaten the integrity of pipeline. Using ultrasonic guided waves to detect these defects is efficient. The waves propagate in the pipe wall and carry information of the entire structure.
X.X. Li, S.Q. Zhou
doaj   +1 more source

Debonding Detection in Grouted Sleeves Using Axisymmetric Longitudinal Guided Waves [PDF]

, 2023
Jiahe Liu, Dongsheng Li, Xiushi Cui
openalex   +1 more source