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A Spatial–Temporal Network Perspective for the Propagation Dynamics of Air Traffic Delays Article

Qing Cai, Sameer Alam, Vu N. Duong

Engineering 2021, Volume 7, Issue 4,   Pages 452-464 doi: 10.1016/j.eng.2020.05.027

Abstract: An understanding of delay propagation dynamics is pertinent to modern air traffic management.In this work, we present a complex network perspective of delay propagation dynamics.To establish the dynamic edges between the nodes, we develop a delay propagation method and apply itpropagation dynamics.The delay propagation dynamics reveal that about six hub airports in the SAR have significant propagated

Keywords： Air traffic     Transport systems     Delay propagation dynamics     Spatial–temporal networks    

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Uncertainty propagation in dynamics of composite plates: A semi-analytical non-sampling-based approach

Mahdi FAKOOR, Hadi PARVIZ

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 6,   Pages 1359-1371 doi: 10.1007/s11709-020-0658-8

Abstract: investigated, and the results indicated that the higher-order modes are more sensitive to uncertainty propagation

Keywords： composite plate     spatially varying stochastic properties     Galerkin method     polynomial chaos approach     semi-analytical approach    

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Applicability of high dimensional model representation correlations for ignition delay times of n-heptane

Wang LIU, Jiabo ZHANG, Zhen HUANG, Dong HAN

Frontiers in Energy 2019, Volume 13, Issue 2,   Pages 367-376 doi: 10.1007/s11708-018-0584-9

Abstract: It is difficult to predict the ignition delay times for fuels with the two-stage ignition tendency becausesampling-high dimensional model representation (RS-HDMR) methods were employed to predict the ignition delayA detailed n-heptane chemical mechanism was used to calculate the fuel ignition delay times in the adiabaticBesides, the ignition delay times predicted by both types of correlations were validated against thoseTherefore, it is concluded that HDMR correlations are capable of predicting the ignition delay times

Keywords： ignition delay     random sampling     high dimensional model representation     n-heptane     fuel kinetics    

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Detection of schedule delay risk of empirical construction projects

Tsegay GEBREHIWET, Hanbin LUO

Frontiers of Engineering Management 2018, Volume 5, Issue 2,   Pages 251-267 doi: 10.15302/J-FEM-2018086

Abstract: In Ethiopian construction projects, schedule delay risk is a predominant issue because it is not properlyconstruction projects, limited efforts have been made to investigate the typical and the overall schedule delayIn this study, our aim is to detect the typical and overall schedule delay risk throughout the constructionThe findings showed that there is a typical delay risk either in the type or in the level of the different

Keywords： fuzzy analytic hierarchy process comprehensive evaluation     construction project     detection of delay risk    

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A model reference adaptive control based method for actuator delay estimation in real-time testing

Cheng CHEN, James M. RICLES

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 3,   Pages 277-286 doi: 10.1007/s11709-010-0072-8

Abstract: The compensation of actuator delay is therefore critical to achieve stable and reliable experimentalHowever, these adaptive methods all require time duration for actuator delay adaptation.Experiments show that a good actuator delay estimate can help optimize the performance of the adaptiveThe rate of adaptation also requires that a good actuator delay estimate be acquired especially for theadaptive control based method to identify the parameter of a simplified discrete model for servo-hydraulic dynamics

Keywords： real-time testing     actuator delay     compensation     adaptive control     MIT rule     discrete transfer function    

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Crack propagation with different radius local random damage based on peridynamic theory

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 5,   Pages 1238-1248 doi: 10.1007/s11709-021-0695-y

Abstract: Drawing from the advantages of Classical Mechanics, the peridynamic theory can clarify the crack propagationMoreover, to study the effects of local stochastic damage with different radii on the crack propagation>Y-direction displacement, a comparison and contact methodology was adopted, in which the crack propagation

Keywords： peridynamics     stochastic damage     bilateral notch crack    

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Lamb wave propagation modeling for structure health monitoring

Xiaoyue ZHANG, Shenfang YUAN, Tong HAO

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 3,   Pages 326-331 doi: 10.1007/s11465-009-0045-6

Abstract: This study aims to model the propagation of Lamb waves used in structure health monitoring.A number of different numerical computational techniques have been developed for wave propagation studiesThe finite difference equations describing wave propagation used in the LISA/SIM theory are obtained.Finally, the Lamb waves propagation modeling is implemented.

Keywords： Lamb wave     modeling     LISA/SIM theory     finite difference equation     finite element    

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New computational treatment of optical wave propagation in lossywaveguides

Jian-xin ZHU,Guan-jie WANG

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 8,   Pages 646-653 doi: 10.1631/FITEE.1400406

Abstract: In this paper, the optical wave propagation in lossy waveguides is described by the Helmholtz equation

Keywords： Adjoint operator     Orthogonal     Chebyshev     Pseudospectral method     Dirichlet-to-Neumann map    

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End-to-end delay analysis for networked systems

Jie SHEN,Wen-bo HE,Xue LIU,Zhi-bo WANG,Zhi WANG,Jian-guo YAO

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 9,   Pages 732-743 doi: 10.1631/FITEE.1400414

Abstract: End-to-end delay measurement has been an essential element in the deployment of real-time services inTraditional methods of delay measurement based on time domain analysis, however, are not efficient asWe propose a novel theoretical framework to analyze the end-to-end delay distributions of networked systemsdelay distribution is indeed the inverse Laplace transform of the transfer function of the signal flowBy analyzing the time responses of the transfer function, we obtain the end-to-end delay distribution

Keywords： Networked system     End-to-end     Delay distribution    

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chromium using a porous titanium flow-through electrode and intelligent prediction based on a back propagation

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 8, doi: 10.1007/s11783-023-1697-x

Abstract:

● Titanium-based flow-through electrode achieved high Cr(VI) reduction efficiency.

Keywords： Flow-through electrode     Hexavalent chromium     Heavy metals     Neural network     Artificial intelligence    

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Study on Several Radio Propagation Models in ITU - R Recommendations

Zhang Minggao

Strategic Study of CAE 2000, Volume 2, Issue 7,   Pages 74-78

Abstract:

Studies are presented on five radio propagation models in ITU - R recommendations.

Keywords： radio propagation     tropospheric scatter     sea reflection     ionospheric scintillation     attenuation by atmospheric    

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Dynamic crack propagation in plates weakened by inclined cracks: an investigation based on peridynamics

A. SHAFIEI

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 4,   Pages 527-535 doi: 10.1007/s11709-018-0450-1

Abstract: The peridynamics solution for this problem represents the main features of dynamic crack propagation

Keywords： peridynamics     inclined crack     dynamic fracture     crack branching    

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Effect of 2,5-dimethylfuran addition on ignition delay times of n-heptane at high temperatures

Zhenhua GAO, Erjiang HU, Zhaohua XU, Geyuan YIN, Zuohua HUANG

Frontiers in Energy 2019, Volume 13, Issue 3,   Pages 464-473 doi: 10.1007/s11708-019-0609-z

Abstract: The experimental observations indicate that the ignition delay times nonlinearly increase with an increasethe competition of small radicals, which primarily leads to the nonlinear increase in the ignition delay

Keywords： ignition delay time     shock tube     kinetic model     2     5-dimethylfuran (DMF)     n-heptane    

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Ignition delay of dual fuel engine operating with methanol ignited by pilot diesel

ZOU Hongbo, WANG Lijun, LIU Shenghua, LI Yu

Frontiers in Energy 2008, Volume 2, Issue 3,   Pages 285-290 doi: 10.1007/s11708-008-0060-z

Abstract: An investigation on the ignition delay of a dual fuel engine operating with methanol ignited by pilotpolytropic index of compression process of the dual fuel engine decreases linearly while the ignition delayCompared with the conventional diesel engine, the ignition delay increment of the dual fuel engine isWith the elevation of the intake charge temperature from 20°C to 40°C and then to 60°C, the ignition delayMoreover, with the increase in engine speed, the ignition delay of the dual fuel engine by time scale
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Damage propagation and strength prediction of a single-lap interference-fit laminate structure

Peng ZOU, Xiangming CHEN, Hao CHEN, Guanhua XU

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 4,   Pages 558-570 doi: 10.1007/s11465-020-0591-5

Abstract: was conducted on the bolted interference fit of a single-lap laminated structure to reveal the damage propagationThe deformation and damage propagation of the specimen were analyzed, and the failure mechanism of intralaminar

Keywords： single-lap     interference fit     secondary bending moment     damage mechanism     bearing strength    

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Title Author Date Type Operation

A Spatial–Temporal Network Perspective for the Propagation Dynamics of Air Traffic Delays

Qing Cai, Sameer Alam, Vu N. Duong

Journal Article

Uncertainty propagation in dynamics of composite plates: A semi-analytical non-sampling-based approach

Mahdi FAKOOR, Hadi PARVIZ

Journal Article

Applicability of high dimensional model representation correlations for ignition delay times of n-heptane

Wang LIU, Jiabo ZHANG, Zhen HUANG, Dong HAN

Journal Article

Detection of schedule delay risk of empirical construction projects

Tsegay GEBREHIWET, Hanbin LUO

Journal Article

A model reference adaptive control based method for actuator delay estimation in real-time testing

Cheng CHEN, James M. RICLES

Journal Article

Crack propagation with different radius local random damage based on peridynamic theory

Journal Article

Lamb wave propagation modeling for structure health monitoring

Xiaoyue ZHANG, Shenfang YUAN, Tong HAO

Journal Article

New computational treatment of optical wave propagation in lossywaveguides

Jian-xin ZHU,Guan-jie WANG

Journal Article

End-to-end delay analysis for networked systems

Jie SHEN,Wen-bo HE,Xue LIU,Zhi-bo WANG,Zhi WANG,Jian-guo YAO

Journal Article

chromium using a porous titanium flow-through electrode and intelligent prediction based on a back propagation

Journal Article

Study on Several Radio Propagation Models in ITU - R Recommendations

Zhang Minggao

Journal Article

Dynamic crack propagation in plates weakened by inclined cracks: an investigation based on peridynamics

A. SHAFIEI

Journal Article

Effect of 2,5-dimethylfuran addition on ignition delay times of n-heptane at high temperatures

Zhenhua GAO, Erjiang HU, Zhaohua XU, Geyuan YIN, Zuohua HUANG

Journal Article

Ignition delay of dual fuel engine operating with methanol ignited by pilot diesel

ZOU Hongbo, WANG Lijun, LIU Shenghua, LI Yu

Journal Article

Damage propagation and strength prediction of a single-lap interference-fit laminate structure

Peng ZOU, Xiangming CHEN, Hao CHEN, Guanhua XU

Journal Article