Results 11 to 20 of about 3,098 (182)

Electromechanical impedance (EMI) technique as alternative to monitor workpiece surface damages after the grinding operation [PDF]

The International Journal of Advanced Manufacturing Technology, 2018
Electromechanical impedance (EMI) technique has been employed in detection of structural failure in civil and mechanical structures because of its non-destructive property and easy implementation of small and inexpensive piezoelectric transducers that are attached to the structures, which lead to cost reduction as well as lesser dependence of manual ...
Batista da Silva, Rosemar, Ferreira, Fabio Isaac, Baptista, Fabrício Guimares, de Aguiar, Paulo Roberto, de Souza Ruzzi, Rodrigo, Hubner, Henrique Butzlaff, da Penha Cindra Fonseca, Maria, Bianchi, Eduardo Carlos   +7 more
openaire   +5 more sources

An Electromechanical Impedance-Based Application of Realtime Monitoring for the Load-Induced Flexural Stress and Damage in Fiber-Reinforced Concrete

Fibers, 2023
Effective real-time structural health monitoring in concrete structures is paramount to evaluating safety conditions and the timely maintenance of concrete structures.
Maria C. Naoum, George M. Sapidis, Nikos A. Papadopoulos, Maristella E. Voutetaki   +3 more
doaj   +3 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

An Optically Transparent Water-Based Metamaterial Absorber for Ultra-Broadband EMI Shielding in Coal Mines. [PDF]

Adv Sci (Weinh)
This study introduces a novel metamaterial absorber integrating water as a lossy medium with patterned indium tin oxide (ITO) films to achieve simultaneous optical transparency and ultra‐wideband electromagnetic absorption over 0.52‐40 GHz. It effectively overcomes the limitations of conventional opaque and bulky shielding materials, offering a ...
Huang X, Gao L, Xu Y, Wang Y, Hou W, Luo Y.   +5 more
europepmc   +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

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