|
|
|
|
|
Jinjun Li, Zhihao He, Chunde Piao, Weiqi Chi and Yi Lu
The development height and settlement prediction of water-conducting fracture zones caused by coal seam mining play an important role in the stability of overburden aquifers and the safety of roadways. Based on the engineering geological data of the J60 ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Artem T. Turov, Fedor L. Barkov, Yuri A. Konstantinov, Dmitry A. Korobko, Cesar A. Lopez-Mercado and Andrei A. Fotiadi
This work studies the application of low-cost noise reduction algorithms for the data processing of distributed acoustic sensors (DAS). It presents an improvement of the previously described methodology using the activation function of neurons, which enh...
ver más
|
|
|
|
|
|
|
|
|
|
|
Artem T. Turov, Yuri A. Konstantinov, Fedor L. Barkov, Dmitry A. Korobko, Igor O. Zolotovskii, Cesar A. Lopez-Mercado and Andrei A. Fotiadi
Moving differential and dynamic window moving averaging are simple and well-known signal processing algorithms. However, the most common methods of obtaining sufficient signal-to-noise ratios in distributed acoustic sensing use expensive and precise equi...
ver más
|
|
|
|
|
|
|
|
|
|
|
Zhipeng Liang, Huawei Zhou, Chunju Zhao, Fang Wang and Yihong Zhou
With the influence of intense solar radiation heat and the greater temperature difference between day and night, surface concrete with a drastic temperature change can easily experience a great nonlinear temperature difference, which increases the risk o...
ver más
|
|
|
|
|
|
|
|
|
|
|
Lei Gao, Chuan Han, Omar Abdulhafidh, Yunhao Gong and Yingjie Jin
In order to study the deformation of a bored pile during concrete curing, it is necessary to monitor the strain of the pile. In this paper, Brillouin optical time domain reflectometer (BOTDR) technology is used to monitor the pile strain during concrete ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Khurram Naeem, Bok Hyeon Kim, Dong-Jin Yoon and Il-Bum Kwon
We propose a weighted singular value decomposition (WSVD) to reduce the random noise in the Rayleigh backscattering signal of the phase-sensitive optical time domain reflectometry (F-OTDR) to enhance the detection performance of the distributed vibration...
ver más
|
|
|
|
|
|
|
|
|
|
|
Yunpeng Liu, Xinye Li, Huan Li, Jiaxue Wang and Xiaozhou Fan
To accurately detect and monitor the internal temperature of an operating power transformer, the distributed optical fiber sensor (DOFS) was creatively applied inside an oil-immersed 35 kV transformer through high integration with the winding wire. On th...
ver más
|
|
|
|
|
|
|
|
|
|
|
Ezzat G. Bakhoum, Cheng Zhang and Marvin H. Cheng
This research group has recently used the new technology Distributed Acoustic Sensing (DAS) for the monitoring and the measurement of airplane flutter. To the authors? knowledge, this is the first such use for this new technology. Traditionally, the meas...
ver más
|
|
|
|
|
|
|
|
|
|
|
Il-Bum Kwon, Yong-Seok Kwon, Dae-Cheol Seo, Dong-Jin Yoon and Eunho Kim
Anchor systems are widely used to stabilize soil slope and suppress slope failure. Thus, monitoring conditions of an anchor system is important to prevent disasters due to slope failure. The slope condition can be indirectly monitored by sensing the tens...
ver más
|
|
|
|
|
|
|
|
|
|
|
Carlo Molardi, Tiago Paixão, Aidana Beisenova, Rui Min, Paulo Antunes, Carlos Marques, Wilfried Blanc and Daniele Tosi
Inscription and interrogation of fiber Bragg gratings into MgO nanoparticle-doped fiber for optical fiber distributed and multiplexed sensing.
|
|
|
|
|
|