Results 41 to 50 of about 1,378,667 (312)

Wavefield Reconstruction Inversion Based on the Multi-Scale Cumulative Frequency Strategy for Ground-Penetrating Radar Data: Application to Urban Underground Pipeline

Remote Sensing, 2022
High-precision detection of the underground pipelines is an indispensable part of the development and construction of cities. At present, the inversion technology for ground-penetrating radar (GPR) data is an effective means of realizing shallow ...
De-Shan Feng, Siyuan Ding, Xun Wang, Xuan Su, Shuo Liu, C. Cao   +5 more
semanticscholar   +1 more source

Stress Analysis of Existing Underground Gas Pipeline due to New Road Crossing with ODOL Transportation

JGEET: Journal of Geoscience, Engineering, Environment and Technology, 2023
Pipelines are the main choice for transport oil and gas due to its resilience, reliability, safety, and lower cost. Most road crossing pipelines are located underground where protections from the loads can be used such as additional pavement. Underground
Taqiya Tsamara, IGN Wiratmaja Puja
doaj   +1 more source

Calibration and field deployment of low-cost sensor network to monitor underground pipeline leakage

Sensors and actuators. B, Chemical, 2021
Recent technological advances in methane detection have improved leak detection and repair. However, current methods to reliably measure methane concentrations rely on expensive instruments or demand significant labor input.
Younki Cho, K. Smits, Stuart N. Riddick, D. Zimmerle   +3 more
semanticscholar   +1 more source

Thermal calculations of underground oil pipelines [PDF]

MATEC Web of Conferences, 2017
Operation of oil pipelines in the frozen soil causes heat exchange between the pipeline and the soil and formation of a melt zone which leads to deformation of pipelines. Terms of construction and operation of oil pipelines are greatly related to their temperature conditions. In this regard it is necessary to know the laws of formation of thawing halos
Moiseev Boris, Zemenkov Yury, Nalobin Nikita, Dudin Sergey   +3 more
openaire   +2 more sources

Research on leakage positioning method of underground gas extraction main pipeline based on transient model

Gong-kuang zidonghua, 2021
At present, most of the existing positioning methods of underground gas extraction main pipeline leakage in coal mines use single positioning method.
ZHANG Yibin, ZHANG Lang, ZHANG Huijie, LI Wei, LIU Yanqing, SANG Cong   +5 more
doaj   +1 more source

Wave processes in an extended underground pipeline interacting with soil according to the model of an “ideal elastoplastic body”

Journal of Physics: Conference Series, 2021
A piecewise-linear problem of the effect of a wave propagating in soil on an extended underground pipeline interacting with soil according to the model of an “ideal elastoplastic body” is solved by the finite difference method. The results of calculating
I. Mirzaev, J. Shomurodov
semanticscholar   +1 more source

Regulating Cells Fate and Function to Facilitate Bone Regeneration via Designing Programmable Bio‐Interactive Materials

Advanced Science, EarlyView.
This article aims to elucidate the biological mechanisms of bone repair and the evolution of material design, highlighting key cellular and molecular processes. It further proposes strategies and prospects for programmable bio‐interactive materials, which enable precisely guided bone tissue regeneration by dynamically regulating cell behavior and the ...
Qingrui Fan, Fuming Cao, Junqiang Mao, Pengbin Yin, Licheng Zhang, Jianjun Wang, Peifu Tang   +6 more
wiley   +1 more source

Forward Analysis of GPR for Underground Pipes Using CUDA-Implemented Conformal Symplectic Euler Algorithm

IEEE Access, 2020
Ground-penetrating radar (GPR) is widely used in the detection and positioning of underground facilities. Through the inversion analysis of echo signals of GPR, information such as pipe material, burial depth and location of pipelines can be obtained ...
Jianwei Lei, Binghan Xue, Hongyuan Fang, Yinping Li, Man Yang   +4 more
doaj   +1 more source

Re‐Thinking Electronic Circuit Design Through Emerging Reconfigurable Field Effect Transistors

Advanced Science, EarlyView.
Graphical illustration of reconfigurable field effect transistor (RFET) operation modes, including n‐type, p‐type, and ambipolar transport, as well as their areas of application discussed in this review: digital circuit design, analog circuit design, post‐Shannon computing, and sensing. ABSTRACT Reconfigurable field‐effect transistors, short RFETs, are
Jens Trommer, Juan P. Martinez, Yuxuan He, Giulio Galderisi, Katrin Pingen, Eduardo Sergio Oliveros‐Mata, Lisa Tellis, Cigdem Cakirlar, Christoph Beyer, Brojogopal Sapui, Joachim Knoch, Klaus Hofmann, Sandro Carrara, Eugenio Cantatore, Max C. Lemme, Ian O'Connor, Akash Kumar, Andre Heinzig, Thomas Mikolajick, Walter M. Weber   +19 more
wiley   +1 more source

A MEMS IMU-Based Air-Propelled Positioning Ball for Small-Diameter Underground Pipeline Localization

IEEE Sensors Journal
Accurate locating of small-diameter underground pipelines (typically 20–65 mm) is crucial for avoiding or minimizing the damage during urban construction and improving maintenance efficiency.
Xiao-Ji Niu, Jundong Hu, Qi-Jin Chen, Dong Zhao   +3 more
semanticscholar   +1 more source