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Original Position Statistic Distribution Analysis (OPA) Study on the Quality of Billet

Wang Haizhou,Li Meiling,Chen Jiwen,Wu Chao

Strategic Study of CAE 2003, Volume 5, Issue 10,   Pages 34-42

Abstract: tens of thousands of primary signals corresponding to original positions of sample systematically, the degreeof porosity, the degree of homogeneity and inclusions of billets can be quantitatively determined.The degree of porosity and the maximum degree of segregation for different billets were calculated accuratelyThe weight ratio of carbon content at each original position of billet was suggested to express the degree

Keywords： original position statistic distribution analysis     billet     degree of porosity     degree of homogeneity     inclusion    

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Conversion of polyethylene to gasoline: Influence of porosity and acidity of zeolites

Frontiers in Energy   Pages 763-774 doi: 10.1007/s11708-023-0897-1

Abstract: Herein a series of microporous and mesoporous zeolites were used to study the influence of porosity andThe effect of porosity and acidity on catalytic performance of zeolites was evaluated, which clearly

Keywords： plastics conversion     polyethylene     zeolites     acidity     porosity    

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Quantification of hydration products in cementitious materials incorporating silica nanoparticles

L. P. SINGH,A. GOEL,S. K. BHATTACHARYYA,G. MISHRA

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 2,   Pages 162-167 doi: 10.1007/s11709-015-0315-9

Abstract: work, silica nanoparticles (30-70nm) were supplemented into cement paste to study their influence on degreeof hydration, porosity and formation of different type of calcium-silicate-hydrate (C-S-H) gel.As the hydration time proceeds, the degree of hydration reach to 76% in nano-modified cement paste whereasAn influence of degree of hydration on the porosity was also determined.Similarly, increasing gel porosity reveals the formation of more C-S-H gel.

Keywords： degree of hydration     porosity     calcium-silicate-hydrate (C-S-H)     silica nanoparticles    

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A time−space porosity computational model for concrete under sulfate attack

Frontiers of Structural and Civil Engineering doi: 10.1007/s11709-023-0985-7

Abstract: Nevertheless, little effort has been invested in exploring the temporal and spatial development of the porosityThis study proposes a mechanical–chemical model to simulate the spatiotemporal distribution of the porositycorrosion damage and cement hydration on the diffusion of sulfate ions, the expansion deformation and porosityThe proposed model can forecast and assess the porosity of concrete covers and provide a credible approach

Keywords： expansion deformation     porosity     internal expansion stress     external sulfate attack     mechanical–chemical    

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Tuning porosity of coal-derived activated carbons for CO2 adsorption

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 9,   Pages 1345-1354 doi: 10.1007/s11705-022-2155-1

Abstract: A simple method was developed to tune the porosity of coal-derived activated carbons, which provided

Keywords： coal-derived activated carbons     porosity     CO2 adsorption     molecular dynamics    

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Experimental studies on the influence of porosity on membrane absorption process

GAO Jian, REN Zhongqi, ZHANG Zeting, ZHANG Weidong

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 4,   Pages 385-389 doi: 10.1007/s11705-007-0070-0

Abstract: cylinder pore) and membrane thickness do not affect the membrane absorption process, and the membrane porosityHowever, the influence of porosity on the membrane absorption process became visible for fast mass transferThe results show that the influence of membrane porosity on mass transfer relates to flow condition,

Keywords： de-ionized     · L     different     membrane porosity     CO    

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Easily-manufactured paper-based materials with high porosity for adsorption/separation applications in

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 7,   Pages 830-839 doi: 10.1007/s11705-022-2267-7

Abstract: As a pore-forming agent, calcium citrate increased the porosity of the paper-based material from 30%

Keywords： adsorption     oil–water separation     underwater superoleophobicity     wastewater treatment    

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The ITZ microstructure, thickness, porosity and its relation with compressive and flexural strength of

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 2,   Pages 191-201 doi: 10.1007/s11709-021-0792-y

Abstract: consequences to the compressive (Fc) and flexural strength (Ff), and porosity

Keywords： cement fineness     interfacial transition zone     compressive and flexural strength    

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Analysis of synergy degree and its influencing factors in hydropower EPC project management

Jiwei ZHU, Hua GAO, Jiangrui WANG

Frontiers of Engineering Management 2021, Volume 8, Issue 3,   Pages 402-411 doi: 10.1007/s42524-020-0098-0

Abstract: The mechanism and factors that influence the degree of management synergy are analyzed on the basis ofanalysis is utilized to identify the key factors that affect the synergy degree.Results show that the order degree of each subsystem presents a steady upward trend.Specifically, the order degree of the subsystem at the trial operation stage is low, which is the majorrestriction on the further improvement of the synergy degree of EPC project management.

Keywords： hydropower project     EPC mode     synergy degree model     grey relational analysis    

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On the location of the secondary instantaneous poles in two-degree-of-freedom spherical mechanisms

Soheil ZARKANDI

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 1,   Pages 34-40 doi: 10.1007/s11465-014-0290-1

Abstract: presents a theorem showing analytically that the locus of an unknown secondary instant pole in two-degree-of-freedom

Keywords： spherical mechanisms     instantaneous poles     great circle     angular velocity    

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Stiffness of a 3-degree of freedom translational parallel kinematic machine

S. SHANKAR GANESH,A.B. KOTESWARA RAO

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 3,   Pages 233-241 doi: 10.1007/s11465-014-0312-z

Abstract:

In this paper, a typical 3-degree of freedom (3-DOF) translational parallel kinematic machine

Keywords： 3-DOF translational PKM     inverse kinematics     stiffness modeling     translational stiffness    

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Effect of process parameters on the density and porosity of laser melted AlSi10Mg/SiC metal matrix composite

Omotoyosi H. FAMODIMU, Mark STANFORD, Chike F. ODUOZA, Lijuan ZHANG

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 4,   Pages 520-527 doi: 10.1007/s11465-018-0521-y

Abstract: reaction to laser melting and the fabrication of density blocks to investigate the relative density and porosity

Keywords： selective laser melting     additive manufacturing     mechanical alloying     powder metallurgy     aluminium metal matrix composite    

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A survey of instantaneous poles for a class of two-degree-of-freedom spherical mechanisms

Soheil ZARKANDI

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 4,   Pages 344-353 doi: 10.1007/s11465-014-0320-z

Abstract:

This paper is a detailed exploration of instantaneous poles for a class of two-degree-of-freedom (

Keywords： spherical mechanisms     instantaneous poles     Aronhold-Kennedy theorem     great circles     pencil of meridian    

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Large-scale accumulation characteristic and distribution law of low porosity and permeability reservoir

Zhao Wenzhi,Wang Hongjun,Bian Congsheng,Wang Zecheng,Liu Guangdi

Strategic Study of CAE 2012, Volume 14, Issue 6,   Pages 31-39

Abstract:

Natural gas resource of low porosity and permeability reservoir is theThe distribution of low porosity and permeability gas reservoir is close to source , and reservoir combinationThe recognization of large scale gas accumulation of low porosity and permeability gas resources has

Keywords： low porosity and permeability reservoir     largescale gas accumulation     volume flow     diffusion flow     “pancake    

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Error analysis and optimization of a 3-degree of freedom translational Parallel Kinematic Machine

S. SHANKAR GANESH,A. B. KOTESWARA RAO

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 2,   Pages 120-129 doi: 10.1007/s11465-014-0300-3

Abstract:

In this paper, error modeling and analysis of a typical 3-degree of freedom translational Parallel

Keywords： translational Parallel Kinematic Machine     error modeling     global error transformation index    

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Title Author Date Type Operation

Original Position Statistic Distribution Analysis (OPA) Study on the Quality of Billet

Wang Haizhou,Li Meiling,Chen Jiwen,Wu Chao

Journal Article

Conversion of polyethylene to gasoline: Influence of porosity and acidity of zeolites

Journal Article

Quantification of hydration products in cementitious materials incorporating silica nanoparticles

L. P. SINGH,A. GOEL,S. K. BHATTACHARYYA,G. MISHRA

Journal Article

A time−space porosity computational model for concrete under sulfate attack

Journal Article

Tuning porosity of coal-derived activated carbons for CO2 adsorption

Journal Article

Experimental studies on the influence of porosity on membrane absorption process

GAO Jian, REN Zhongqi, ZHANG Zeting, ZHANG Weidong

Journal Article

Easily-manufactured paper-based materials with high porosity for adsorption/separation applications in

Journal Article

The ITZ microstructure, thickness, porosity and its relation with compressive and flexural strength of

Journal Article

Analysis of synergy degree and its influencing factors in hydropower EPC project management

Jiwei ZHU, Hua GAO, Jiangrui WANG

Journal Article

On the location of the secondary instantaneous poles in two-degree-of-freedom spherical mechanisms

Soheil ZARKANDI

Journal Article

Stiffness of a 3-degree of freedom translational parallel kinematic machine

S. SHANKAR GANESH,A.B. KOTESWARA RAO

Journal Article

Effect of process parameters on the density and porosity of laser melted AlSi10Mg/SiC metal matrix composite

Omotoyosi H. FAMODIMU, Mark STANFORD, Chike F. ODUOZA, Lijuan ZHANG

Journal Article

A survey of instantaneous poles for a class of two-degree-of-freedom spherical mechanisms

Soheil ZARKANDI

Journal Article

Large-scale accumulation characteristic and distribution law of low porosity and permeability reservoir

Zhao Wenzhi,Wang Hongjun,Bian Congsheng,Wang Zecheng,Liu Guangdi

Journal Article

Error analysis and optimization of a 3-degree of freedom translational Parallel Kinematic Machine

S. SHANKAR GANESH,A. B. KOTESWARA RAO

Journal Article