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Investigation of bubble diameter and flow regime between water and dilute aqueous ethanol solutions in

Baharak SAJJADI, Mostafa Keshavarz MORAVEJI, Reza DAVARNEJAD

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 2,   Pages 194-202 doi: 10.1007/s11705-010-1019-2

Abstract: In this study, the effect of ethanol addition into pure water and its concentration on bubble diameterAlcohol concentration enhancement caused bubble diameter to decrease.Furthermore, the bubbles diameter in pure water was nearly 4 times higher than that of ethanol with concentration

Keywords： airlift rector     bubble diameter     gas hold-up     flow regime     ethanol    

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Impacts of different diameter combinations on the temperature of a crude oil pipeline when colocating

Bo YU, Yue SHI, Xin LIU, Jinjun ZHANG, Jinjia WEI,

Frontiers in Energy 2010, Volume 4, Issue 2,   Pages 192-197 doi: 10.1007/s11708-009-0074-1

Abstract: In order to show the effects of different diameter combinations on crude oil temperature when a crudeoil pipeline and a products pipeline are laid in one trench, four typical diameter combinations areIn real pipeline constructions, the effects of other diameter combinations on crude oil temperature canbe predicted by the method of linear interpolation to calculate results of the four diameter combinations

Keywords： technology of laying two pipelines in one trench     diameter combinations     crude oil temperature     pipeline    

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Effects of slip length and hydraulic diameter on hydraulic entrance length of microchannels with superhydrophobic

Wenchi GONG, Jun SHEN, Wei DAI, Zeng DENG, Xueqiang DONG, Maoqiong GONG

Frontiers in Energy 2020, Volume 14, Issue 1,   Pages 127-138 doi: 10.1007/s11708-020-0661-8

Abstract: This paper investigated effects of slip length and hydraulic diameter on the hydraulic entrance lengthincreases with the increasing slip length at approximately Re<10, and does not vary with the hydraulic diameter

Keywords： laminar flow     hydraulic entrance length     super hydrophobic surface     slip length     hydraulic diameter    

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Assembling and defect treatment of large-diameter shield segment

Cheng Xuewu,Xu Weiqing,Yang Zhiyong

Strategic Study of CAE 2010, Volume 12, Issue 12,   Pages 89-93

Abstract:

In the paper, the segment assembling techniques of large-diameter shieldwere summarized, and the apparent damage reasons and repair technology of large-diameter shield reinforcedconcrete segment in the construction were preliminarily analyzed, based on research of the underground diameterabove hance and below hance, respectively, assuring the good strength and surface quality of large-diameter

Keywords： large-diameter shield     segment     assembling     repair    

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Stability analysis of large diameter thin-walled tube beam-columns

PAN Hanming, GUO Yanlin, LIANG Shuo, PEI Shengxing, LIANG Weisheng, WANG Lewen

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 2,   Pages 123-132 doi: 10.1007/s11709-008-0017-7

Abstract: Based on a blind spot in the current design standard of steel structures, the large diameter thin-walledThe influence of several factors on stability capacity of the large diameter thin-walled tube beam-columnscalculation formulas of the stability bearing capacity are presented for beam-column members of the large diameter

Keywords： ultimate strength     nonlinear     numerical analytical     diameter thin-walled     practice    

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Influence of sprinkler irrigation droplet diameter, application intensity and specific power on flower

Yisheng ZHANG, Delan ZHU

Frontiers of Agricultural Science and Engineering 2017, Volume 4, Issue 2,   Pages 165-171 doi: 10.15302/J-FASE-2017145

Abstract: The influences of different parameters such as droplet diameter, application intensity, specific powerApplication intensity was also correlated with injury when the droplet diameter was larger than 1 mm.

Keywords： application intensity     damage     floriculture     flowers     specific power     sprinkler irrigation    

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A new performance evaluation method and its application in fin-tube surface design of small diameter

Jufang FAN, Weikun DING, Zhigeng WU, Yaling HE, Wenquan TAO, Yongxin ZHENG, Yifeng GAO, Ji SONG

Frontiers in Energy 2011, Volume 5, Issue 1,   Pages 59-68 doi: 10.1007/s11708-010-0132-8

Abstract: In this paper, a simple yet efficient performance comparison method is proposed based on the assumptions of constant properties and identical frontal area. For this method, no correlations are required, and a small number of discrete data are sufficient. To illustrate the feasibility of the proposed approach, a new slotted fin with 4 mm tubes is designed to replace the original louvered fin with tubes of 7 mm. The orthogonal design method is adopted in the fin design to reduce the number of computational cases significantly, and yet a nearly optimum combination of major geometric factors can still be obtained. The reasonable parametric combination of 3 global parameters is obtained by analyzing the numerical results of 16 plain plate fins. Based on this result, 3 new slotted fins with different fin pitches are studied. The slotted fin with a fin pitch of 1.4 mm is recommended after considering the heat transfer, comprehensive performance, and cost of material and operation. The result shows that compared with the original louvered fin, the recommended fin not only increases the heat transfer rate by 2.2%, 22.5%, and 13.7% under an identical flow rate, identical pressure drop, and identical pumping power constraint, respectively, but also saves approximately 36% of the copper tube materials.

Keywords： performance evaluation     orthogonal design     small-diameter tube    

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The adaptability analysis of cutter tool to slurry shield of Beijing railway underground diameter line

He Feng,Li Xiaogang,Sun Shanhui

Strategic Study of CAE 2010, Volume 12, Issue 12,   Pages 35-40

Abstract:

Based on the underground diameter line engineering experience from Beijing

Keywords： diameter line     slurry shield     cutter tool     adaptability    

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Fatigue crack growth behavior of a 170 mm diameter stainless steel straight pipe subjected to combined

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4,   Pages 905-913 doi: 10.1007/s11709-021-0683-2

Abstract: evaluation was conducted on a notched stainless steel SA312 Type 304LN straight pipe having an outer diameter

Keywords： fatigue life     Delale and Erdogan method     RMS–SIF approach     stainless steel     torsion and bending load     fatigue crack growth    

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Cutting Force Model for a Small-diameter Helical Milling Cutter

LI Xiwen, YANG Shuzi, YANG Mingjin, XIE Shouyong

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 3,   Pages 272-277 doi: 10.1007/s11465-007-0047-1

Abstract: milling process, the major flank wear land area (two-dimensional measurement for the wear) of a small-diameterprovide a theoretical foundation for monitoring the condition of a milling process that uses a small-diameter

Keywords： computational     corresponding     helical milling     theoretical foundation     Characteristic    

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Bioprinting of Small-Diameter Blood Vessels Review

Xia Cao, Sushila Maharjan, Ramla Ashfaq, Jane Shin, Yu Shrike Zhang

Engineering 2021, Volume 7, Issue 6,   Pages 832-844 doi: 10.1016/j.eng.2020.03.019

Abstract: that have been applied to fabricate vascular and vascularized tissue constructs, with a focus on small-diameter

Keywords： Bioprinting     Small-diameter blood vessel     Bioink     Vascular engineering    

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The vertical shaft construction-technology of the cutter transformation of large-diameter shield

Wang Zhenfei,He Feng,He Shanning

Strategic Study of CAE 2010, Volume 12, Issue 12,   Pages 103-107

Abstract: justify;">Taking vertical shaft construction of the cutter transformation of the Beijing underground diameterdesign and construction of cutter structure transformation under complex boundary conditions for large-diameter

Keywords： large-diameter shield     transformation shaft     complex conditions    

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Shield launching technology in the project of Beijing railway underground diameter project

Lv Chuantian,Zhai Zhiguo,Su Qinggui

Strategic Study of CAE 2010, Volume 12, Issue 12,   Pages 59-64

Abstract:

Based on the introduction of building launching shaft and the shield launching of Beijing Rail Transit which constructed with a slurry shield machine by Ø12.04 m, some key technologies of shield launching were summarized in the urban areas and the water-rich grit stone geological conditions.

Keywords： urban     water-rich sandy gravel     big diameter     slurry shield     launching    

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The negative ring demolition and tunnel refitting technique of large diameter tube

Zhai Zhiguo,Huang xuejun,Yang Zhiyong

Strategic Study of CAE 2010, Volume 12, Issue 12,   Pages 83-88

Abstract: bid section in detail, the experience of negative ring demolition and replacement techniques of large diameter

Keywords： big diameter shield     negative ring     demolition     tunnel reconstruction    

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various grade of Ordinary Portland Cement (OPC) and Portland Pozzolane Cement (PPC) mixes and different diameter

A D POFALE, S P WANJARI

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 1,   Pages 39-45 doi: 10.1007/s11709-013-0193-y

Abstract: investigation, total 24 samples consisting of M20, M35 and M50 grades of concrete and 16 and 25 mm diameter

Keywords： bond strength     Portland Pozzolane Cement (PPC) concrete     Ordinary Portland Cement (OPC) concrete     bond between concrete and steel     pullout test     development length    

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Title Author Date Type Operation

Investigation of bubble diameter and flow regime between water and dilute aqueous ethanol solutions in

Baharak SAJJADI, Mostafa Keshavarz MORAVEJI, Reza DAVARNEJAD

Journal Article

Impacts of different diameter combinations on the temperature of a crude oil pipeline when colocating

Bo YU, Yue SHI, Xin LIU, Jinjun ZHANG, Jinjia WEI,

Journal Article

Effects of slip length and hydraulic diameter on hydraulic entrance length of microchannels with superhydrophobic

Wenchi GONG, Jun SHEN, Wei DAI, Zeng DENG, Xueqiang DONG, Maoqiong GONG

Journal Article

Assembling and defect treatment of large-diameter shield segment

Cheng Xuewu,Xu Weiqing,Yang Zhiyong

Journal Article

Stability analysis of large diameter thin-walled tube beam-columns

PAN Hanming, GUO Yanlin, LIANG Shuo, PEI Shengxing, LIANG Weisheng, WANG Lewen

Journal Article

Influence of sprinkler irrigation droplet diameter, application intensity and specific power on flower

Yisheng ZHANG, Delan ZHU

Journal Article

A new performance evaluation method and its application in fin-tube surface design of small diameter

Jufang FAN, Weikun DING, Zhigeng WU, Yaling HE, Wenquan TAO, Yongxin ZHENG, Yifeng GAO, Ji SONG

Journal Article

The adaptability analysis of cutter tool to slurry shield of Beijing railway underground diameter line

He Feng,Li Xiaogang,Sun Shanhui

Journal Article

Fatigue crack growth behavior of a 170 mm diameter stainless steel straight pipe subjected to combined

Journal Article

Cutting Force Model for a Small-diameter Helical Milling Cutter

LI Xiwen, YANG Shuzi, YANG Mingjin, XIE Shouyong

Journal Article

Bioprinting of Small-Diameter Blood Vessels

Xia Cao, Sushila Maharjan, Ramla Ashfaq, Jane Shin, Yu Shrike Zhang

Journal Article

The vertical shaft construction-technology of the cutter transformation of large-diameter shield

Wang Zhenfei,He Feng,He Shanning

Journal Article

Shield launching technology in the project of Beijing railway underground diameter project

Lv Chuantian,Zhai Zhiguo,Su Qinggui

Journal Article

The negative ring demolition and tunnel refitting technique of large diameter tube

Zhai Zhiguo,Huang xuejun,Yang Zhiyong

Journal Article

various grade of Ordinary Portland Cement (OPC) and Portland Pozzolane Cement (PPC) mixes and different diameter

A D POFALE, S P WANJARI

Journal Article