Results 11 to 20 of about 438 (134)

Structural Health Monitoring of Timber Using Electromechanical Impedance (EMI) Technique [PDF]

Advances in Civil Engineering, 2020
Nowadays, the electromechanical impedance method has been widely used in the field of structural healthy monitoring, especially for the concrete and steel materials.
Fang Han, Quanjing Zhang, Chengfeng Wang, Guangtao Lu, Jinwei Jiang   +4 more
doaj   +2 more sources

In Vivo Imaging With a Low-Cost MRI Scanner and Cloud Data Processing in Low-Resource Settings. [PDF]

NMR Biomed
This study presented the system evolution at MUST: (a) Scanner after the initial assembly in 2023. (b) First reconstructed image (bell pepper). Front (c), rear (d), and global (e) views of the MUST scanner in the 2025 configuration, highlighting the improved electronics setup, RF coils, and mechanical integration.
Guallart-Naval T, Asiimwe R, Tusiime P, Nassejje MA, Kinyera L, Robin L, Nayebare M, Santos LGC, Fernández-García M, Swistunow L, Algarín JM, Stairs J, Hansen M, Amodoi R, Webb A, Harper J, Schiff SJ, Obungoloch J, Alonso J.   +18 more
europepmc   +2 more sources

A Deep Learning Approach for Autonomous Compression Damage Identification in Fiber-Reinforced Concrete Using Piezoelectric Lead Zirconate Titanate Transducers [PDF]

Sensors
Effective damage identification is paramount to evaluating safety conditions and preventing catastrophic failures of concrete structures. Although various methods have been introduced in the literature, developing robust and reliable structural health ...
George M. Sapidis, Ioannis Kansizoglou, Maria C. Naoum, Nikos A. Papadopoulos, Constantin E. Chalioris   +4 more
doaj   +2 more sources

Visualising the strength development of FICP-treated sand using impedance spectroscopy [PDF]

Scientific Reports
Fungal Induced Calcium Carbonate Precipitation (FICP) is a novel method used in geotechnical engineering that enhances the engineering properties of sand by using the potential of fungal activity.
Jamal Ahmad, Mohammad Arsalan Khan, Shakeel Ahmad, Meshel Q. Alkahtani, Mohammad Mursaleen, Saiful Islam   +5 more
doaj   +2 more sources

Crack Detection in Bearing Plate of Prestressed Anchorage Using Electromechanical Impedance Technique: A Numerical Investigation

Buildings, 2023
The bearing plate is an important part of a tendon–anchorage subsystem; however, its function and safety can be compromised by factors such as fatigue and corrosion.
Ba-Tung Le, Thanh-Truong Nguyen, Tran-De-Nhat Truong, Chi-Thien Nguyen, Thi Tuong Vy Phan, Duc-Duy Ho, Thanh-Canh Huynh   +6 more
doaj   +1 more source

Experimental Evaluation of Miniature Impedance Board for Loosening Monitoring of the Threaded Pipe Connection

Frontiers in Physics, 2021
Electromechanical impedance (Electromechanical impedance)-based methods as potential nondestructive evaluation (NDT) techniques have been widely used in the field of structural health monitoring (SHM), especially for the civil, mechanical, and aerospace ...
Yabin Liang, Yabin Liang, Yabin Liang, Yabin Liang, Yixuan Chen, Yixuan Chen, Zuocai Zhang, Zuocai Zhang, Zuocai Zhang, Zuocai Zhang, Qian Feng, Qian Feng, Qian Feng, Qian Feng   +13 more
doaj   +1 more source

Piezoelectric Electro-Mechanical Impedance (EMI) Based Structural Crack Monitoring

Applied Sciences, 2020
To detect small cracks in plate like structures, the high frequency characteristics of local dynamics were studied with the piezoelectric electro-mechanical impedance (EMI) method, and damages were monitored by the changes of the EMI.
Tao Wang, Bohai Tan, Mingge Lu, Zheng Zhang, Guangtao Lu   +4 more
doaj   +1 more source

A Low-Cost Prestress Monitoring Method for Post-Tensioned RC Beam Using Piezoelectric-Based Smart Strand

Buildings, 2021
This study proposes a cost-effective prestress monitoring method for post-tensioned reinforced concrete (RC) beams using a smart strand. Firstly, the concept of a piezoelectric-based smart strand and its implementation for prestress force monitoring are ...
Thanh-Cao Le, Thi Tuong Vy Phan, Trung-Hau Nguyen, Duc-Duy Ho, Thanh-Canh Huynh   +4 more
doaj   +1 more source

EMI-GCN: a hybrid model for real-time monitoring of multiple bolt looseness using electromechanical impedance and graph convolutional networks

Smart Materials and Structures, 2021
Abstract Electro-mechanical impedance (EMI) has been proved as an effective non-destructive evaluation indicator in monitoring the looseness of bolted joints. Yet due to the complex electro-mechanical coupling mechanism, EMI-based methods in most cases are considered as qualitative approaches and are only applicable for single-bolt ...
Lu Zhou, Si-Xin Chen, Yi-Qing Ni, Alex Wai-Hing Choy   +3 more
openaire   +2 more sources

Optimum PZT Patch Size for Corrosion Detection in Reinforced Concrete Using the Electromechanical Impedance Technique

Sensors, 2021
This paper proposes the use of a 1-dimensional (1-D) electromechanical impedance model to extract proper design guidelines when selecting patch-size and frequency range for corrosion detection in reinforced concrete structures using the electromechanical
Jaamac Hassan Hire, Seyedsina Hosseini, Farshad Moradi   +2 more
doaj   +1 more source