Damage Security Intelligent Identification of Wharf Concrete Structures under Deep Learning and Digital Image Technology

3D Microwave Imaging Technology For Damage Detection of Concrete Structures

Various nondestructive evaluation (NDE) techniques have been studied to locate steel rebars or dowel, and to detect invisible damage such as voids and cracks inside concrete and debonding between rebars and concrete caused by corrosions and earthquakes. In this study, the authors developed 3-dimensional (3D) electromagnetic (EM) imaging technology to detect such damage and to identify exact loc...

Processing Digital Image for Measurement of Crack Dimensions in Concrete

The elements of the concrete structure are most frequently affected by cracking. Crack detection is essential to ensure safety and performance during its service life. Cracks do not have a regular shape, in order to achieve the exact dimensions of the crack; the general mathematical formulae are by no means applicable. The authors have proposed a new method which aims to measure the crack dimen...

Automated Identification Technology and Information Security in Digital Hospitals

Received Aug 10 th , 2013 Revised Sep 15 th , 2013 Accepted Sep 30 th , 2013 ―Digital hospital‖ is a modern hospital mode that strongly relies on information technology and networks. Automated identification technology (AIT) mainly includes bar coding, radio frequency identification (RFID), and biometrics. AIT has been cutting-edge technology for supporting digital hospitals. Bar coding has bee...

Damage Detection of Carbon Fiber-reinforced Concrete Under Bending Test

On the Use of Acoustic Emission and Digital Image Correlation for Welded Joints Damage Characterization

A series of tests have been conducted to investigate fatigue damage characterization in corroded welded steel plates using structural health monitoring (SHM) techniques. Acoustic Emission (AE) is a non-destructive testing (NDT) technique with potential applications for locating and monitoring fatigue cracks in service. In the present work, AE is implemented to characterize damage during crack e...