Results 21 to 30 of about 203,484 (257)

Research on Joint Parameter Inversion for an Integrated Underground Displacement 3D Measuring Sensor

Sensors, 2015
Underground displacement monitoring is a key means to monitor and evaluate geological disasters and geotechnical projects. There exist few practical instruments able to monitor subsurface horizontal and vertical displacements simultaneously due to ...
Nanying Shentu, Guohua Qiu, Qing Li, Renyuan Tong, Nankai Shentu, Yanjie Wang   +5 more
doaj   +1 more source

A New Strategy for Extracting 3D Deformation of Mining Areas from a Single-Geometry Synthetic Aperture Radar Dataset

Remote Sensing, 2023
This paper presents a strategy for extracting three-dimensional (3D) mining deformation from a single-geometry synthetic aperture radar (SAR) dataset.
Ruonan Zhao, Zhabko Andrey Viktorovich, Junfeng Li, Chuang Chen, Meinan Zheng   +4 more
doaj   +1 more source

Research on evaluation model of comprehensive condition for mine-used hydraulic support

Gong-kuang zidonghua, 2019
In view of problem that existing hydraulic support monitoring system had not realized comprehensive monitoring and evaluation of conditions of hydraulic support, evaluation model of comprehensive condition for hydraulic support was established.Through ...
HOU Gang
doaj   +1 more source

Retrieving Three-Dimensional Large Surface Displacements in Coal Mining Areas by Combining SAR Pixel Offset Measurements with an Improved Mining Subsidence Model

Remote Sensing, 2021
Interferometric synthetic aperture radar (InSAR) technology can obtain one-dimensional surface displacements in the radar line of sight (LOS). In the field of mining subsidence, large 3D movements often occur at the same time, and hence InSAR derived one-
Bingqian Chen, Han Mei, Zhenhong Li, Zhengshuai Wang, Yang Yu, Hao Yu   +5 more
doaj   +1 more source

Experimental Research of Compound Monitoring on Multiple Temporary Blocking Refracturing for Long-Section Horizontal Wells

Frontiers in Earth Science, 2022
As an important energy replacement block in China, the tight conglomerate oilfields in the Mahu area are difficult to develop and are characterized by strong heterogeneity, large horizontal stress differences, and undeveloped natural fractures.
Jingchen Zhang, Baocheng Wu, Fei Wang, Shanzhi Shi, Jinjun Liu, Mingxing Wang, Jie Li, Nicholas Izuchukwu Osuji   +7 more
doaj   +1 more source

Surface Deformation Calculation Method Based on Displacement Monitoring Data

Buildings
Considering the importance of calculating surface deformation based on monitoring data, this paper proposes a method for calculating horizontal deformation based on horizontal displacement monitoring data. This study first analyzes the characteristics of
Lin He, Yibin Yao
doaj   +1 more source

ASSIST: Refinement of a Benefits Navigator Intervention Among Low‐Income Pediatric Oncology Families

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background/Objectives Children with cancer living in poverty experience worse survival and quality of life. Interventions connecting low‐income families to benefits (e.g., Supplemental Nutrition Assistance Program [SNAP] improve health outcomes; yet nearly 50% of SNAP‐eligible pediatric oncology families are unenrolled.
Puja J. Umaretiya, Selena Murcia Mendez, Jennifer Kellett, Sarah Wright, Marisel Ponton, Robin T. Higashi, Rahela Aziz‐Bose, Colleen A. Kelly, Ayesha Zia, Joanne Wolfe, Sandi L. Pruitt, Kira Bona   +11 more
wiley   +1 more source

Research on Horizontal Wellbore Cleaning Monitoring Technologies

Shiyou jixie, 2020
Real-time monitoring of wellbore cleaning is important to ensuring the safety and efficient drilling of horizontal wells. At present, mature wellbore cleaning monitoring technologies are controlled by foreign companies, which restricts the development of
Fan Yuguang, Tian Zhonglan, Ming Ruiqing, Yang Henglin, Fu Li, Wang Yuan, Guo Kaijie   +6 more
doaj  

On-Line Monitoring of Pipe Wall Thinning by a High Temperature Ultrasonic Waveguide System at the Flow Accelerated Corrosion Proof Facility

Sensors, 2019
Pipe wall thinning and leakage due to flow accelerated corrosion (FAC) are important safety concerns for nuclear power plants. A shear horizontal ultrasonic pitch/catch technique was developed for the accurate monitoring of the pipe wall-thickness.
Se-beom Oh, Yong-moo Cheong, Dong-jin Kim, Kyung-mo Kim   +3 more
doaj   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

FEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee, Junho Jeong, Chae Yeong Lee, Hyunjoon Cho, Man Hwan Oh, Je Chul Lee, Jee‐Young Lee, Yangmee Kim   +7 more
wiley   +1 more source