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Effect of adjusted mesoscale drag model on flue gas desulfurization in powder-particle spouted beds
《化学科学与工程前沿(英文)》 2022年 第16卷 第6期 页码 909-920 doi: 10.1007/s11705-021-2100-8
关键词: adjusted mesoscale drag model particle image velocimetry water vaporization desulfurization reaction numerical simulation
Development of a fan-stirred constant volume combustion chamber and turbulence measurement with PIV
《能源前沿(英文)》 2022年 第16卷 第6期 页码 973-987 doi: 10.1007/s11708-021-0762-z
关键词: fan-stirred combustion chamber turbulence characteristics particle image velocimetry (PIV) methanol turbulent expanding flames
《机械工程前沿(英文)》 2022年 第17卷 第1期 页码 3-3 doi: 10.1007/s11465-021-0659-x
关键词: ultrasound image guidance prostate percutaneous intervention parallel robot kinematics identification particle swarm optimization informative value
基于图像测量技术的高速铁路有砟道床道砟颗粒运动分析 Article
边学成, 蔡文清, 罗政, 赵闯, 陈云敏
《工程(英文)》 2023年 第27卷 第8期 页码 161-177 doi: 10.1016/j.eng.2022.08.006
有砟轨道是国内外高速铁路主要轨道形式之一,由级配碎石组成的道砟层在高速列车荷载下会产生比普通铁路更明显的道砟颗粒运动,易于引发过大的道床沉降,对列车安全运行产生不利影响。但由于缺乏有效测量手段和分析方法,道砟颗粒的运动行为研究仍不多见。本课题基于数码相机和图形识别方法,在全比尺模型试验中开发了道砟颗粒运动追踪技术,将1274个道床层表层道砟染色并设定为追踪目标;在试验中以垂直向下的角度陆续拍摄道砟层照片,通过追踪目标显示的像素变化特征,对表层道砟颗粒运动进行追踪,定量地分析了不同列车速度和轴重工况下道砟颗粒的运动行为。试验结果表明:表层道砟颗粒运动在低速列车荷载作用下较微弱且主要集中于轨枕附近,但当列车时速提升至360 km时,道砟运动明显加剧并扩展至整个道床层;此外,经统计发现道砟颗粒位移和旋转的发展规律类似;轨道振动会诱发道砟颗粒运动,竖向加速度和水平加速度分别是轨道中心和轨道边缘附近道砟颗粒运动产生的主要原因。道砟颗粒运动和轨道沉降在长期加载中的发展趋势相似,两者同时达到稳定状态;轨道服役性能(如振动特性、累积沉降与轨枕支承刚度)在高速列车荷载的长期作用下会部分劣化,其与道砟颗粒流动的方向和分布密切相关。
Turbidity-adaptive underwater image enhancement method using image fusion
《机械工程前沿(英文)》 2022年 第17卷 第3期 doi: 10.1007/s11465-021-0669-8
关键词: turbidity underwater image enhancement image fusion underwater robots visibility
Gradient-based compressive image fusion
Yang CHEN,Zheng QIN
《信息与电子工程前沿(英文)》 2015年 第16卷 第3期 页码 227-237 doi: 10.1631/FITEE.1400217
关键词: Compressive sensing (CS) Image fusion Gradient-based image fusion CS-based image fusion
Edge detection of steel plates at high temperature using image measurement
Qiong Zhou, Qi An
《机械工程前沿(英文)》 2009年 第4卷 第1期 页码 77-82 doi: 10.1007/s11465-009-0013-1
关键词: thermal expansion image measurement edge detection image calibration
《化学科学与工程前沿(英文)》 2022年 第16卷 第6期 页码 897-908 doi: 10.1007/s11705-021-2127-x
关键词: hydrodesulfurization hydrodenitrogenation particle shape pore structure
A novel light fluctuation spectrum method for in-line particle sizing
Shouxuan QIN, Xiaoshu CAI, Li MA
《能源前沿(英文)》 2012年 第6卷 第1期 页码 89-97 doi: 10.1007/s11708-012-0176-z
关键词: in-line measurement particle size distribution (PSD) incident light intensity particle concentration light fluctuation
Independent cover meshless particle method for complex geotechnical engineering
Jianqiu WU, Yongchang CAI
《结构与土木工程前沿(英文)》 2018年 第12卷 第4期 页码 515-526 doi: 10.1007/s11709-017-0428-4
关键词: meshless method particle method independent cover CTM geotechnical engineering
Microdamage study of granite under thermomechanical coupling based on the particle flow code
《结构与土木工程前沿(英文)》 页码 1413-1427 doi: 10.1007/s11709-023-0953-2
关键词: thermomechanical coupling effect granite improved linear parallel bond model thermal property particle flow code
Deformable image registration with geometric changes
Yu LIU,Bo ZHU
《信息与电子工程前沿(英文)》 2015年 第16卷 第10期 页码 829-837 doi: 10.1631/FITEE.1500045
关键词: Geometric changes Image registration Sparsity Traumatic brain injury (TBI)
Study on direct measurement method of vorticity from particle images
RUAN Xiaodong, FU Xin, YANG Huayong
《能源前沿(英文)》 2007年 第1卷 第4期 页码 408-412 doi: 10.1007/s11708-007-0059-1
Response surface regression analysis on FeCrBSi particle in-flight properties by plasma spray
Runbo MA,Lihong DONG,Haidou WANG,Shuying CHEN,Zhiguo XING
《机械工程前沿(英文)》 2016年 第11卷 第3期 页码 250-257 doi: 10.1007/s11465-016-0401-2
This work discusses the interactive effects between every two of argon flow rate, voltage, and spray distance on in-flight particles by plasma spray and constructs models that can be used in predicting and analyzing average velocity and temperature. Results of the response surface methodology show that the interactive effects between voltage and spray distance on particle in-flight properties are significant. For a given argon flow rate, particle velocity and temperature response surface are obviously bending, and a saddle point exists. With an increase in spray distance, the interactive effects between voltage and argon flow rate on particle in-flight properties appear gradually and then weaken. With an increase in voltage, the interactive effects between spray distance and argon flow rate on particle in-flight properties change from appearing to strengthening and then to weakening.
关键词: particle velocity particle temperature interactive effects response surface
A building unit decomposition model for energy leakage by infrared thermography image analysis
Yan SU, Fangjun HONG, Lianjie SHU
《能源前沿(英文)》 2020年 第14卷 第4期 页码 901-921 doi: 10.1007/s11708-020-0679-y
关键词: heat conductivity heat coefficient heat &fllig ux infrared thermography thermal image
标题 作者 时间 类型 操作
Effect of adjusted mesoscale drag model on flue gas desulfurization in powder-particle spouted beds
期刊论文
Development of a fan-stirred constant volume combustion chamber and turbulence measurement with PIV
期刊论文
Ultrasound-guided prostate percutaneous intervention robot system and calibration by informative particle
期刊论文
Catalyst particle shapes and pore structure engineering for hydrodesulfurization and hydrodenitrogenation
期刊论文
A novel light fluctuation spectrum method for in-line particle sizing
Shouxuan QIN, Xiaoshu CAI, Li MA
期刊论文
Independent cover meshless particle method for complex geotechnical engineering
Jianqiu WU, Yongchang CAI
期刊论文
Study on direct measurement method of vorticity from particle images
RUAN Xiaodong, FU Xin, YANG Huayong
期刊论文
Response surface regression analysis on FeCrBSi particle in-flight properties by plasma spray
Runbo MA,Lihong DONG,Haidou WANG,Shuying CHEN,Zhiguo XING
期刊论文