scholarly journals Simulation Study on Image Characteristics of Typical GPR Targets in Water Conservancy Projects

Geofluids ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Jie Cao ◽  
Baoyuan Yuan ◽  
Yun Bai
Keyword(s):  
Global Economy ◽  
Field Tests ◽  
Analysis Method ◽  
Simulation Experiments ◽  
Detection Technology ◽  
Image Characteristics ◽  
Practical Engineering ◽  
Water Conservancy ◽  
Ground Penetrating ◽  
Dam Foundations

With the development of the global economy, the deep leakage of reservoirs is still a serious threat to the foundation construction of key water conservancy projects such as dam foundations and bridges. Ground penetrating radar (GPR) is an effective underground imaging and detection technology. In this paper, the Groundvue series of ground penetrating radars is introduced in Britain using the 948 project fund of the Ministry of Water Resources. It is a radar with the lowest frequency in the world at present, improving detection depths and helping to ensure the reliability of a reservoir dam’s foundation. Through a large number of field tests, simulation experiments, FDTD numerical simulations, and practical engineering applications, this paper summarizes the reservoir leakage analysis method based on the Groundvue radar. The successful application at the Nanmenxia Reservoir shows that this method can effectively detect the location and path of reservoir leakage and provide technical support for the design and construction of a reservoir reinforcement project.

scholarly journals Evaluation and Validation of a Semiautomatic Image Analysis Method: Quantification of Nares Cell Proliferation of Rhinella arenarum (Anura) Detected with the Avidin-Biotin Complex/Peroxidase, DAB

2015 ◽  
Vol 2015 ◽  
pp. 1-10
Author(s):  
Javier Eduardo Diaz Zamboni ◽  
Daniela Osella ◽  
Enrique Valentín Paravani ◽  
Víctor Hugo Casco
Keyword(s):  
Gold Standard ◽  
Visual Analysis ◽  
Methodological Approach ◽  
Image Features ◽  
Analysis Method ◽  
New Approach ◽  
Image Characteristics ◽  
Microscopy Image ◽  
Computer Based ◽  
Current Report

The current report presents the development and application of a novel methodological approach for computer-based methods of processing and analysis of proliferative tissues labeled by ABC-peroxidase method using 3, 3′-diaminobenzidine (DAB) as chromogen. This semiautomatic method is proposed to replace the classical manual approach, widely accepted as gold standard. Our method is based on a visual analysis of the microscopy image features from which a computational model is built to generate synthetic images which are used to evaluate and validate the methods of image processing and analysis. The evaluation allows knowing whether the computational methods applied are affected by the change of the image characteristics. Validation allows determining the method’s reliability and analyzing the concordance between the proposed method and a gold standard one. Additional strongness of this new approach is that it may be a framework adaptable to other studies made on any kind of microscopy.

A Point Set Analysis Method for Hull Blocks Based on CPD and Engineering Constraints

2020 ◽  
Vol 36 (02) ◽  
pp. 105-114
Author(s):  
Guan Guan ◽  
Hongling Liao
Keyword(s):  
Data Analysis ◽  
Multiobjective Optimization ◽  
Error Distribution ◽  
Analysis Method ◽  
Practical Engineering ◽  
Coherent Point Drift ◽  
Point Set ◽  
Optimal Data Analysis ◽  
Important Basis ◽  
Engineering Constraints

A point set analysis method considering the practical engineering constraints has been proposed in this article. First, the coherent point drift method was used to obtain the initial values of data analysis. Second, the error distribution in different directions was expressed by weight vectors. Last, the multiobjective optimization model was built and the engineering constrains were introduced into the multioptimization objective function to achieve the optimal data analysis results. The experimental results proved that the method could obtain the reasonable data analysis results, which met the engineering constraints. It provides the important basis for the subsequent assembly.

Study on Modeling and Kinematics Analysis of an Assistant Robot

2013 ◽  
Vol 299 ◽  
pp. 48-51
Author(s):  
Ramadhani O. Kivugo ◽  
Zhong Min Wang
Keyword(s):  
Physical Characteristics ◽  
Geometric Parameters ◽  
Simulation Studies ◽  
Analysis Method ◽  
Kinematics Analysis ◽  
Robot System ◽  
Simulation Experiments ◽  
Kinematics Model

Firstly, model of an assistant robot is built by UG software based on analysis to human exoskeleton system. Secondly, for establishing its kinematics model of this assistant robot, physical characteristics, practical geometric parameters and restriction relations are considered, and then this model is exported to ADAMS environment. Thirdly, simulation studies to the assistant robot system are carried out by ADAMS, and its kinematics performances are analyzed. Simulation experiments verify the validity and feasibility of the modeling and kinematics analysis method.

Results of Field Trials of Realsens™, An Airborne Natural Gas Leak Detection Technology

2008 ◽  
Author(s):  
Adrian Banica ◽  
Doug Miller ◽  
Boyd T. Tolton
Keyword(s):  
Remote Sensing ◽  
Natural Gas ◽  
Near Infrared ◽  
New Technology ◽  
Field Tests ◽  
Field Trials ◽  
Infrared Band ◽  
Detection Technology ◽  
Gas Leak ◽  
Gas Leaks

Detecting natural gas leaks from the worlds nearly 5 million kilometers of underground pipelines is a difficult and costly challenge. Existing technologies are limited to ground deployment and have a number of limitations such as slow response, false leak readings and high costs. Various remote sensing solutions have been proposed in the past and a few are currently being developed. This paper starts by describing the remote sensing concept and then will focus on a new technology developed by Synodon scientists. This airborne instrument is a passive Gas Filter Correlation Radiometer (GFCR) that is tuned to measure ethane in the 3.3 microns near-infrared band. The paper will then present the results of the first airborne field tests and conclude with a description of the service which Synodon will be offering to the transmission and distribution pipeline operators using the new technology.

Enhancing Liquid Hydrocarbon Pipeline Leak Detection Using Instrumented Aerial Surveillance

2014 ◽  
Author(s):  
Adrian Banica ◽  
Doug Waslen ◽  
Boyd T. Tolton
Keyword(s):  
Natural Gas ◽  
New Technology ◽  
Field Tests ◽  
Ground Level ◽  
Leak Detection ◽  
Liquid Hydrocarbon ◽  
Aerial Surveillance ◽  
Natural Gas Pipelines ◽  
Test Methodology ◽  
Detection Technology

Suncor Energy Inc. contacted Synodon as part of an effort to enhance pipeline leak detection. Ideally, Suncor needed a technology that could detect natural gas as well as liquid hydrocarbon releases. Synodon’s new technology is an aircraft mounted gas remote sensing instrument that has been used for detecting leaks from natural gas pipelines for over four (4) years and was expanding their capability to include liquid hydrocarbons. This paper will describe the steps that Suncor and Synodon have taken over the last two years to develop and validate this detection technology. Synodon completed a number of studies including laboratory and field tests that demonstrated the ability of Synodon’s technology to remotely detect ground-level plumes of vapours released from a liquid hydrocarbon pipeline. Synodon conducted full atmospheric analytic modeling followed by laboratory measurements to determine the level of sensitivity of its instrument measurement to both methane and various liquid hydrocarbon vapors including gasoline, condensates and synthetic crude oil. Suncor participated in the development of test methodology and field execution in order to witness and validate the results. Based on this work, Suncor has determined an optimum inspection frequency based on theoretical spill size, SCADA leak detection thresholds and conventional aerial patrol constraints. The results and conclusions of this work will be presented.

scholarly journals Dynamic Comprehensive Benefit Evaluation of the Transnational Power Grid Interconnection Project Based on Combination Weighting and TOPSIS Grey Projection Method

2018 ◽  
Vol 10 (12) ◽  
pp. 4672 ◽  
Author(s):  
Jinying Li ◽  
Jiaming Xu ◽  
Xin Tan
Keyword(s):  
Projection Method ◽  
Index System ◽  
Global Economy ◽  
Least Squares Method ◽  
Power Grid ◽  
Rapid Development ◽  
Order Relation ◽  
Evaluation Index System ◽  
Analysis Method ◽  
Grid Interconnection

With the rapid development of the global economy, the interconnection of power grids has become an objective law and a trend of the power industry development. The implementation of power grid interconnection projects, especially transnational power grid interconnection projects, will bring us substantial benefits. To demonstrate these benefits comprehensively, we designed a comprehensive evaluation index system with multiple international engineering characteristics. The index system takes the influencing factors of economic, social, environmental and technical benefits into account. In order to improve the rigidity and power of weight determination, we proposed the least squares method which combines the order relation method and the factor analysis method. Furthermore, the limitation of the one-way evaluation was effectively overcome by combining TOPSIS (Technique for Order Preference by Similarity to an Ideal Solution), grey relation analysis method and vector projection method. In addition, we adjusted the potential impact of the time on evaluation by using the quadratic weighted algorithm, so that we can dynamically evaluate the comprehensive benefits. Finally, we verified the established index system and evaluation model through an example of eight different investment plans of a transnational high voltage direct current (HVDC) transmission project. Altogether, results from this paper will provide a guidance reference and decision support for the grid corporation to invest in transnational power grid interconnection projects.

Study on identification of damping system based on motion state

2020 ◽  
Vol 23 (10) ◽  
pp. 2136-2148
Author(s):  
Zhiying Zhang ◽  
Ying Li ◽  
Hongyang Wei ◽  
Qiji Ze
Keyword(s):  
Soil Structure ◽  
Seismic Isolation ◽  
Correct Identification ◽  
Analysis Method ◽  
Spatial Continuity ◽  
Identification Method ◽  
Motion State ◽  
Practical Engineering ◽  
Whiplash Effect ◽  
Damping Systems

A correct identification for damping system is the foundation to select the dynamic analysis method. In this study, the differences between motion states in different damping systems are investigated initially. A theoretical identification method based on motion state is proposed with the spatial continuity of the motion, and the coordination of the motion state is used as the objective function. In addition, dynamic simulation results of a set of plates are compared to clarify the physical interpretation of the identification method. The method is applied to three practical examples with recognized damping system, including the motion of seismic isolation bearings, whiplash effect, semi-active controlling systems, and soil–structure interaction system. The analysis results verify that the proposed identification method is feasible in practical engineering.

Formation of the musician's personal brand on social networks (using the example of P. Drangi and A. Vorobyov)

2020 ◽  
pp. 26-36
Author(s):  
Varvara A. KUZMINA ◽  
Marina V. TERSKIKH
Keyword(s):  
Social Networks ◽  
Individual Characteristics ◽  
Analysis Method ◽  
Career Trajectory ◽  
Four Dimensions ◽  
Image Characteristics ◽  
Content Analysis Method ◽  
Comparative Aspect ◽  
Personal Brand ◽  
The Individual

We considered the problem of formation of personal brand through content of social networks. Based on modern works on personal branding and classification proposed by image-making specialists, we considered strategies and technologies for creating a personal brand by two creative personalities in a comparative aspect: P. Drangoy and A. Vorobyov. We understood a personal brand as a complex of images and associations that is actualized in the minds of people when mentioning the name of a certain person. We modeled P. Drangi and A. Vorobyov's personal brands by determining the competencies, standards and style that they broadcast in the Internet space; key image characteristics of both artists are analyzed, we considered image in four dimensions: visual, verbal, context and event. We used the comparative analysis method and the content analysis method as the basic ones. The material for the study was content posted by musicians on personal official pages on social networks. The appeal to this content made it possible to determine the general in building the image of the star of the modern scene, taking into account the individual characteristics of each musician. In conclusion, we made the conclusion about the ability of an account on a social network to influence the artist's image, his concert activity and career trajectory.

Application Research of Geological Radar in Volcanic Lava in the Geological Survey

2012 ◽  
Vol 226-228 ◽  
pp. 2093-2097
Author(s):  
Qiao Lin Xiao ◽  
Fen Lü
Keyword(s):  
Radar Signal ◽  
Wave Group ◽  
Geological Interpretation ◽  
Detection Technology ◽  
Image Characteristics ◽  
Geological Conditions ◽  
Volcanic Lava ◽  
Change Trend ◽  
Effective Use ◽  
Design And Construction

Aiming at the Hainan volcanic lava the geological characteristics, the application of geological radar detection technology in the geological environment of signal respond, combined with the added drilling data is compared, established the goal of geological radar image characteristics of geology, summarized the poor geological conditions in the area of geological radar signal response law. Field test shows that the radar reflected wave group of wave characteristic in volcanic lava can distinguish different geological layer reflection wave group, and via studying their relationship and change trend, to achieve the purpose of geological interpretation, and determine the adverse lava geology development stages , for design and construction to provide the reliable foundation material, effective use of survey for the design and construction of the guidance function.

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