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Image-Aided Analysis of Ballast Particle Movement Along a High-Speed Railway Article

Xuecheng Bian, Wenqing Cai, Zheng Luo, Chuang Zhao, Yunmin Chen

Engineering 2023, Volume 27, Issue 8,   Pages 161-177 doi: 10.1016/j.eng.2022.08.006

Abstract: feature noteworthy particle movement compared with normal railways, which may cause excessive settlementThe movement behavior of ballast particles under different combinations of train speeds and axle loadsThe obtained results indicated that the surface ballast particle movements were slight, mainly concentratedAdditionally, the development of ballast particle displacement statistically resembled its rotation.Furthermore, the development trends of ballast particle movements and track settlement under long-term

Keywords： High-speed railway     Full-scale model test     Image-aided technique     Ballast particle movement     Track vibration    

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Experimental study on average movement characteristics of bed-load particles

Limo TANG, Xingkui WANG,

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 4,   Pages 435-439 doi: 10.1007/s11709-009-0050-1

Abstract: different specific gravities under the conditions of different hydraulic gradient are measured by means of particleThe average movement characteristics of the particles are analyzed by statistics.Einstein’s law is that the particle velocity is equal to 11.6 times of shear velocity, and theequal to the difference between flow velocity at corresponding water depth and settling velocity of particleTwo formulas for determining the velocity of particle in the forms of expression given by Einstein and

Keywords： different     longitudinal     three-dimensional     particle     Bagnold    

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Multi-scale investigation of active failure for various modes of wall movement

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4,   Pages 961-979 doi: 10.1007/s11709-021-0738-4

Abstract: Retained backfill response to wall movement depends on factors that range from boundary conditions toDEM allows conducting virtual experiments, with which the variation of particle and boundary propertiesHence, various modes of wall movement (translation and rotation) toward the active state are modeleddistribution and deformation mechanisms are discussed with reference to the associated modes of wall movementand particle shapes.

Keywords： discrete-element modelling     granular materials     retaining walls     particle shape     arching    

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Technical feasibility study of an onshore ballast water treatment system

Shengjie LIU, Manxia ZHANG, Xiang LI, Xiaojia TANG, Lingling ZHANG, Yimin ZHU, Chengyu YUAN

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 4,   Pages 610-614 doi: 10.1007/s11783-011-0379-2

Abstract: To fulfill the requirements of (G8), a set of onshore ballast water treatment equipment utilizing micro-pore

Keywords： ballast water     ceramic filter     UV     plankton     oceanic bacteria    

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Pulsed holography diagnosis of high-speed particles

Cao Na,Cao Liang,Xu Qing,Cui Guangbin,Ma Jiming,Zhang Zhanhong,Du Jiye,Dong Jingran

Strategic Study of CAE 2009, Volume 11, Issue 9,   Pages 48-51

Abstract:

Based on the theory of particle field holography, a set of corresponding

Keywords： pulsed holography     particle field     diagnosis system     high-speed movement    

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The Stable Movement of Salty Water Soil and Pattern Researchof Removing the Salt

Zhou Heping,Peng Lixin,Xu Xiaobo

Strategic Study of CAE 2007, Volume 9, Issue 11,   Pages 120-126

Abstract:

Through the research of the water-salt movement under different groundthe symptom of redistribution of water and salt in certain area:when the evolvement of water and salt movementoccurs in vertical and horizontal direction, there is also the important symptom of sideward movementabroad, and discusses the new mode of salt drainage under both the condition of water-salt directional movementand the condition of salt movement to the earth's surface.

Keywords： water-salt directional movement     new mode of salt dranage     research and discussion    

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Catalyst particle shapes and pore structure engineering for hydrodesulfurization and hydrodenitrogenation

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 6,   Pages 897-908 doi: 10.1007/s11705-021-2127-x

Abstract: Catalyst particle shapes and pore structure engineering are crucial for alleviating internal diffusionThe effects of catalyst particle shapes (sphere, cylinder, trilobe, and tetralobe) and pore structuresThe relationship between particle shape and effectiveness factor is first established, and the specificThe catalyst particle shapes primarily alter the average HDS/HDN reaction rate to adjust the HDS/HDNimproving HDS/HDN catalyst particle efficiency.

Keywords： hydrodesulfurization     hydrodenitrogenation     particle shape     pore structure    

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A novel light fluctuation spectrum method for in-line particle sizing

Shouxuan QIN, Xiaoshu CAI, Li MA

Frontiers in Energy 2012, Volume 6, Issue 1,   Pages 89-97 doi: 10.1007/s11708-012-0176-z

Abstract: This paper discusses two problems in in-line particle sizing when using light fluctuation method.First, by retrieving the ratio of particle concentrations at different time, the intensity of incidentmulti-sub-size zone model is proposed, with which the relationship between the distribution of turbidity and the particle

Keywords： in-line measurement     particle size distribution (PSD)     incident light intensity     particle concentration    

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Independent cover meshless particle method for complex geotechnical engineering

Jianqiu WU, Yongchang CAI

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 4,   Pages 515-526 doi: 10.1007/s11709-017-0428-4

Abstract: A new Independent Cover Meshless Particle (ICMP) method is proposed for the analysis of complex geotechnical

Keywords： meshless method     particle method     independent cover     CTM     geotechnical engineering    

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Microdamage study of granite under thermomechanical coupling based on the particle flow code

Frontiers of Structural and Civil Engineering   Pages 1413-1427 doi: 10.1007/s11709-023-0953-2

Abstract: an improved temperature-dependent linear parallel bond model is introduced under the framework of a particle

Keywords： thermomechanical coupling effect     granite     improved linear parallel bond model     thermal property     particle    

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Study on direct measurement method of vorticity from particle images

RUAN Xiaodong, FU Xin, YANG Huayong

Frontiers in Energy 2007, Volume 1, Issue 4,   Pages 408-412 doi: 10.1007/s11708-007-0059-1

Abstract: vorticity measurement, a new direct measurement of vorticity (DMV) method extracting vorticity from particle

Keywords： conventional     vorticity measurement     particle     DMV     theory    

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Response surface regression analysis on FeCrBSi particle in-flight properties by plasma spray

Runbo MA,Lihong DONG,Haidou WANG,Shuying CHEN,Zhiguo XING

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 3,   Pages 250-257 doi: 10.1007/s11465-016-0401-2

Abstract: response surface methodology show that the interactive effects between voltage and spray distance on particleFor a given argon flow rate, particle velocity and temperature response surface are obviously bendingWith an increase in spray distance, the interactive effects between voltage and argon flow rate on particleWith an increase in voltage, the interactive effects between spray distance and argon flow rate on particle

Keywords： particle velocity     particle temperature     interactive effects     response surface    

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Sub-layer Movement in the Large-scale Stratum

Xu Shaoxie

Strategic Study of CAE 2006, Volume 8, Issue 6,   Pages 14-22

Abstract:

It was reported that a new find on sub-layer movement in the large-scale stratum had been observedEarthquakes with different division magnitude can represent movement of sub-layer with different thicknessA direct evidence of movement, synchronal movement in vertical direction, in the as large-scale stratumEvents with strong tremble of sub-layer movement have been analyzed, which were recorded by stations

Keywords： sub-layer movement in the large-scale stratum     events with strong tremble     earthquake prediction    

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Cell-Zone Method: An Engineering Approach to Predict Smoke Movement in Large Scale Building Fire

Hu Longhua,Huo Ran,Liy Uanzhou,Wang Haobo

Strategic Study of CAE 2003, Volume 5, Issue 8,   Pages 59-63

Abstract:

In large scale building fire, it is improper to predict smoke descending using traditional simple two-layer zone model, which divides the total space of the building into upper hot smoke layer and lower cool air layer. In this paper, an improved method, named Cell-Zone Method, is used to solve this problem, which first divides the total space into some small subspaces and then uses traditional two-layer zone model in each subspace. Comparison is carried out between these two methods in fire smoke development simulation in typical large space buildings by CFAST4.02 software package. Results show that Cell-Zone Method demonstrates more applicability than traditional simple two-layer zone model in large scale building, especially in buildings having large scale in one direction.

Keywords： large scale building     smoke movement     cell-zone method     zone-model    

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Analysis of molten metal spreading and solidification behaviors utilizing moving particle full-implicit

Frontiers in Energy 2021, Volume 15, Issue 4,   Pages 959-973 doi: 10.1007/s11708-021-0753-0

Abstract: In the numerical analysis, the moving particle full-implicit method (MPFI), which is one of the particle

Keywords： molten metal spreading     solidification     particle method     severe accident     fuel debris     decommissioning    

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Title Author Date Type Operation

Image-Aided Analysis of Ballast Particle Movement Along a High-Speed Railway

Xuecheng Bian, Wenqing Cai, Zheng Luo, Chuang Zhao, Yunmin Chen

Journal Article

Experimental study on average movement characteristics of bed-load particles

Limo TANG, Xingkui WANG,

Journal Article

Multi-scale investigation of active failure for various modes of wall movement

Journal Article

Technical feasibility study of an onshore ballast water treatment system

Shengjie LIU, Manxia ZHANG, Xiang LI, Xiaojia TANG, Lingling ZHANG, Yimin ZHU, Chengyu YUAN

Journal Article

Pulsed holography diagnosis of high-speed particles

Cao Na,Cao Liang,Xu Qing,Cui Guangbin,Ma Jiming,Zhang Zhanhong,Du Jiye,Dong Jingran

Journal Article

The Stable Movement of Salty Water Soil and Pattern Researchof Removing the Salt

Zhou Heping,Peng Lixin,Xu Xiaobo

Journal Article

Catalyst particle shapes and pore structure engineering for hydrodesulfurization and hydrodenitrogenation

Journal Article

A novel light fluctuation spectrum method for in-line particle sizing

Shouxuan QIN, Xiaoshu CAI, Li MA

Journal Article

Independent cover meshless particle method for complex geotechnical engineering

Jianqiu WU, Yongchang CAI

Journal Article

Microdamage study of granite under thermomechanical coupling based on the particle flow code

Journal Article

Study on direct measurement method of vorticity from particle images

RUAN Xiaodong, FU Xin, YANG Huayong

Journal Article

Response surface regression analysis on FeCrBSi particle in-flight properties by plasma spray

Runbo MA,Lihong DONG,Haidou WANG,Shuying CHEN,Zhiguo XING

Journal Article

Sub-layer Movement in the Large-scale Stratum

Xu Shaoxie

Journal Article

Cell-Zone Method: An Engineering Approach to Predict Smoke Movement in Large Scale Building Fire

Hu Longhua,Huo Ran,Liy Uanzhou,Wang Haobo

Journal Article

Analysis of molten metal spreading and solidification behaviors utilizing moving particle full-implicit

Journal Article