Results 41 to 50 of about 648 (141)

Comparison of modelling approaches for liquid fluidized beds

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study presents a comparison of three promising numerical models for the detailed simulation of liquid–solid fluidized bed. These models differ in their treatment of the solid phase, ranging from treating each particle individually to treating the collection of particles as a continuum.
Andreu Bernad‐Serra, Furkhat Khamitov, Olli H. Sorvari, Ville Alopaeus   +3 more
wiley   +1 more source

Comparative study of advanced image reconstruction algorithms for complex arbitrary components

Research and Review Journal of Nondestructive Testing, 2023
Accurate ultrasonic imaging and inspection of specimens with non-planar complex surfaces are often challenging from both transducer coupling and imaging perspectives.
Sumana Sumana, C.harles N. MacLeod, Simon Parke, David Lines, Jon Bates   +4 more
doaj   +1 more source

Phase-Consistency-Adaptive Multi-Path Total Focusing Ultrasonic Imaging for Delamination Quantification in L-Shaped CFRP Corner Parts

Sensors
The delay-and-sum total focusing method (TFM) for ultrasonic full matrix capture (FMC) depends on accurate ray path and travel time computation. In L-shaped carbon fiber-reinforced polymer (CFRP) corner parts, elastic anisotropy, multilayer stacking, and
Jie Ding, Jinming Cao, Tengfei Ma, Haodong Chen, Jun Zhang, Zheng Xu, Jiansheng Jiang, Jingli Yan, Hui Ding   +8 more
doaj   +1 more source

Sparse-TFM Imaging of Lamb Waves for the Near-Distance Defects in Plate-Like Structures

Metals, 2019
The ultrasonic phased array total focusing method (TFM) has the advantages of high imaging resolution and high sensitivity to small defects. However, it has a long imaging time and cannot realize near-distance defect imaging, which limits its application
Haiyan Zhang, Yaqun Liu, Guopeng Fan, Hui Zhang, Wenfa Zhu, Qi Zhu   +5 more
doaj   +1 more source

Mechanical stability in flexible perovskite solar cells: Interface engineering and device design

FlexMat, EarlyView.
Statistics of the improvement methods for f‐PSCs. Abstract Flexible perovskite solar cells (f‐PSCs) demonstrate significant potential for application in next‐generation wearable electronic devices and photovoltaic building integration due to their high power conversion efficiency and excellent power‐to‐weight ratio. However, the inherent brittleness of
Hong‐Yi Hou, Xin‐Yi Zeng, Jian‐Xin Tang, Yan‐Qing Li   +3 more
wiley   +1 more source

Deep learning framework for image enhancement of phased array ultrasonic imaging

Results in Engineering
Phased array ultrasonic imaging is widely used in non-destructive testing for defect detection. Sector scan (S-scan) is widely used method for rapid inspection at lower resolution.
Keonhyeok Park, Jun Hyeong Park, Bumsoo Park, Hyung Jin Lee, Sooyoung Lee, Iljoo Jeong, Anna Lee, Choon-Su Park, Seungchul Lee   +8 more
doaj   +1 more source

Merged Mode TFM with Mode Conversion Artifact Suppression

Research and Review Journal of Nondestructive Testing, 2023
The objective of the paper is to compare the merits of the multiplication and max value schemes for producing a total focusing method (TFM) representation that combines multiple acoustic modes.
Chi-Hang Kwan, Benoit Lepage, Cong Zhu Sun   +2 more
doaj   +1 more source

Geochemical and Geological Investigation of Skarn‐Type Pb–Zn Mineralization in Hastanetepe (Balya‐Balıkesir, Türkiye): An Approach Based on Fluid Inclusions, Sulphur Isotopes and Geochemical Data

Geological Journal, EarlyView.
Integrated petrographic, mineralogical and geochemical data from the Hastanetepe Pb–Zn deposit (Balya, Türkiye) reveal multi‐stage hydrothermal alteration and a magmatic sulphur source. Fluid inclusion and sulphur isotope results indicate a complex fluid evolution responsible for skarn‐type Pb–Zn mineralization along limestone–dacite contacts ...
Esra Ünal‐Çakır
wiley   +1 more source

Ultrasonic Total Focusing Method Technology in Carbon Steel Butt Weld Application

e-Journal of Nondestructive Testing
Carbon steel butt welds are widely used in aircraft carrier, shipbuilding, railway, aerospace and other industries. As a new technology of ultrasonic non-destructive testing, Total Focusing Method (TFM) technology is a method of image reconstruction in ...
Lixiang Hong, Jiaqiong Lin, Xueling Chen
doaj   +1 more source

Total Focusing (TFM) for the Ultrasonic Testing (UT) of drawn arc stud welding

Research and Review Journal of Nondestructive Testing, 2023
This article describes the results obtained applying ultrasonic testing (UT) with phased arrays (PAUT) using full matrix capture (FMC) and total focusing method (TFM) for the inspection of drawn arc stud welding.
Carlo Romito, Arnulf Hörtnagl, Marco Induti   +2 more
doaj   +1 more source