Results 21 to 30 of about 68,147 (253)

Stretchable plasmonic metasurfaces for deformation monitoring. [PDF]

Nanophotonics
Abstract Metasurfaces have recently gained significant attention due to the strong capacity in light field manipulation. However, most traditional metasurfaces are fabricated on rigid substrates, which fix their functionality after fabrication and limit their applications in dynamic measurement fields.
Li P, Gao K, Ma R, Pan K, Li D, Liu F, Li P, Gan X, Zhao J, Wen D.   +9 more
europepmc   +4 more sources

Constructing a precipitable water vapor map from regional GNSS network observations without collocated meteorological data for weather forecasting [PDF]

Atmospheric Measurement Techniques, 2018
Surface pressure (Ps) and weighted mean temperature (Tm) are two necessary variables for the accurate retrieval of precipitable water vapor (PWV) from Global Navigation Satellite System (GNSS) zenith total delay (ZTD) estimates.
B. Chen, B. Chen, B. Chen, W. Dai, W. Dai, W. Dai, Z. Liu, L. Wu, L. Wu, C. Kuang, C. Kuang, C. Kuang, M. Ao   +12 more
doaj   +1 more source

High precision coseismic deformation monitoring method based on time-series InSAR analysis

地球与行星物理论评, 2023
Interferometry Synthetic Aperture Radar (InSAR) technology has become an important tool for monitoring surface deformation with its all-day, all-weather ground monitoring and high spatial resolution, and has been widely applied to seismic deformation ...
Xiongxiao Wu, Guangcai Feng, Lijia He, Hao Lu   +3 more
doaj   +1 more source

Health Monitoring System with Hybrid Laser Sensor Networks and Cloud Computing for Subway Tunnels

Advances in Civil Engineering, 2021
The settlement and deformation monitoring for existing tunnels would encounter the difficulties in sensor installation and health evaluation in real time.
Fu-guang Zhu, Dong-sheng Xu, Rui-shan Tan, Bin Peng, He Huang, Zhuo-wen Liu   +5 more
doaj   +1 more source

Analysis of BDS/GPS Deformation Monitoring for the Lake Sarez Dam

Remote Sensing, 2023
The Sarez Dam, currently recognized as the world’s highest natural dam, holds immense economic significance, necessitating the reliable monitoring and early detection of potential deformations.
Junqiang Han, Rui Tu, Xiaochun Lu, Lihong Fan, Wenquan Zhuang, Weisheng Wang, Feng Zhao, Bayin Dalai, Gulayozov Majid Shonazarovich, Mustafo Safarov   +9 more
doaj   +1 more source

基于定点形变资料获取断裂浅层倾向和倾角的方法研究—以唐山台为例

Dizhen xuebao, 2018
本文利用唐山地震台1978—2016年跨断层定点形变资料探究唐山地震台所跨断层的浅层倾向和倾角。首先，对形变资料进行数字滤波处理，消除原始观测数据中的非构造信息；其次，对数据精度进行评价，得出1997—2016年滤波后的形变数据年累计残差普遍较小、精度较高；最后，采用精度较高的形变数据计算SE和NW两倾向不同倾角下基线与水准和的累计残差分布，进而获取断层的浅层倾向和倾角。结果显示，依据跨断层定点形变资料获得唐山地震台所跨断层的浅层倾向为SE，倾角为89°，该结果与前人探槽剖面中断层产状相一致 ...
Yongkui Wan, Xia Liu, Yongge Wan, Yuan Li, Lei Wang   +4 more
doaj   +1 more source

Solid Model Bridge Static Damage Monitoring Based on GBSAR [PDF]

Journal of Geodesy and Geoinformation Science, 2022
Bridge deformation monitoring usually adopts contact sensors, and the implementation process is often limited by the environment and observation conditions, resulting in unsatisfactory monitoring accuracy and effect. Ground-Based Synthetic Aperture Radar
Sichun LONG,Xiaoqin YUAN,Shide LU,Wenting LIU,Jinyu MA,Wenhao WU,Chuanguang ZHU
doaj   +1 more source

Cognitions and questions regarding crustal deformation and location forecasts of strong earthquakes

Geodesy and Geodynamics, 2015
Using Global Positioning System(GPS) data to analyze the earthquake preparation characteristics of the Kunlun Ms8.1 and the Wenchuan Ms8.0 earthquakes, we review the main research developments of earthquake forecasting and the mechanisms of earthquake ...
Wenxin Wei, Zaisen Jiang, Yanqiang Wu
doaj   +1 more source

Vision-Based Bridge Deformation Monitoring [PDF]

Frontiers in Built Environment, 2017
Optics-based tracking of civil structures is not new, due to historical application in surveying, but automated applications capable of tracking at rates that capture dynamic effects are now a hot research topic in structural health monitoring. Recent innovations show promise of true non-contacting monitoring capability avoiding the need for physically
brownjohn, James, Xu, Yan, Hester, David
openaire   +2 more sources

Integrated SSA-LSTM-ARMA framework for sea-surface-height prediction [PDF]

Shandong kexue
With the increasing influence of global climate change on sea levels, accurate prediction of sea-surface-height variations is essential for marine environmental monitoring, disaster early warning, and coastal resource management. Using sea-surface-height
ZHANG Runda, WANG Jianquan, ZHANG Ning
doaj   +1 more source