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The application of polycarboxylates water-reducing admixture to passenger dedicated line engineering

Huang Zhijiu

Strategic Study of CAE 2009, Volume 11, Issue 1,   Pages 75-80

Abstract:

Polycarboxylates water-reducing admixture possesses the capability whichProblems of engineering application of polycarboxylates water-reducing admixtures were analyzed.polycarboxylates application is to settle the compatibility with cement andkeep the quality retention of this admixtures

Keywords： polycarboxylate water-reducing admixtures     compatibility of cement     quality retention     high performance    

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Effect of nonionic side chain length of polycarboxylate-ether-based high-range water-reducing admixture

Süleyman ÖZEN, Muhammet Gökhan ALTUN, Ali MARDANI-AGHABAGLOU, Kambiz RAMYAR

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 6,   Pages 1573-1582 doi: 10.1007/s11709-020-0680-x

Abstract: Despite the large variations in the behaviors of water-reducing admixtures upon changes in their structuresIn this study, three different polycarboxylate-ether-based water-reducing admixtures with the same freeThe compatibility of these admixtures with a CEM I 42.5R-type cement was investigated.The water-reducing admixtures having long or short side chains reduced the initial flow characteristicsside chain length of the admixture did not have significant effects on the compressive strength and water

Keywords： water-reducing admixture     side chain length     cement paste     fluidity     compressive strength    

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Effect of mineral additives and permeability reducing admixtures having different action mechanisms on

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 5,   Pages 1277-1291 doi: 10.1007/s11709-021-1752-2

Abstract: In this paper, the effect of usage of the permeability reducing admixture (PRA) having different actionhardened state properties of mortar mixtures such as compressive strength, ultrasonic pulse velocity, water

Keywords： cementitious system     mineral additive     permeability reducing admixture     mechanical properties     durability    

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An experimental study for optimization of high range water reducing superplasticizer in self compacting

Rahul DUBEY, Pardeep KUMAR

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 1,   Pages 62-71 doi: 10.1007/s11709-013-0192-z

Abstract: Although with the advent of chemical admixtures, it is possible to achieve concrete with high fluiditythese fresh state properties SCC mixes are typically designed with high powder contents, and chemical admixtures

Keywords： self-compacting concrete (SCC)     fresh properties     superplasticizer     optimization     compressive strength    

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Adsorption properties of polycarboxylate ether-based superplasticizer on cement particles and their resultant

Jinyoung YOON; Byoung Il CHOI; Jae Hong KIM

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 4,   Pages 506-514 doi: 10.1007/s11709-022-0813-5

Abstract: The cement dispersion performance of a polycarboxylate (PCE)-based superplasticizer is highly related

Keywords： adsorption     polycarboxylate     superplasticizer     rheology     dispersion    

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Chemical additives affect sulfate reducing bacteria biofilm properties adsorbed on stainless steel 316Lsurface in circulating cooling water system

Yu Qi,Jin Li,Rui Liang,Sitong Ji,Jianxiang Li,Meng Liu

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 2, doi: 10.1007/s11783-017-0917-7

Abstract: This paper studied the biofilm properties and corrosion behavior of sulfate reducing bacteria (SRB) onstainless steel 316L (SS316L) surface in circulating cooling water system with and without additives

Keywords： Sulfate reducing bacteria (SRB)     Chemical additives     Biofilm     Extracellular polymeric substance (EPS)     Microbe    

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Reductant-assisted polydopamine-modified membranes for efficient water purification

Feng Sun, Jinren Lu, Yuhong Wang, Jie Xiong, Congjie Gao, Jia Xu

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 1,   Pages 109-117 doi: 10.1007/s11705-020-1987-9

Abstract: In this study, polydopamine self-polymerisation was controlled by adjusting its reducing environmentThe polydopamine coating formed in the reducing environment facilitated excellent water transport performancewith a water permeance of approximately 400 L·m ·h ·bar as well as efficient organic foulant removalboth excellent chemical stability and anti-microbial activity, demonstrating the contribution of the reducingIt shows significant potential for use in water purification.

Keywords： membrane     water purification     polydopamine     reducing environment     self-polymerization control    

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Online control of biofilm and reducing carbon dosage in denitrifying biofilter: pilot and full-scale

Xiuhong Liu, Hongchen Wang, Qing Yang, Jianmin Li, Yuankai Zhang, Yongzhen Peng

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 1, doi: 10.1007/s11783-017-0895-9

Abstract: Online control of DNBF was studied in the pilot-scale and full-scale experiments. DNBF was controlled by the online monitored effluent nitrate and turbidity. The effluent nitrate lower than 3 mg·L and saving 18% of carbon were both achieved. Denitrifying biofilter (DNBF) is widely used for advanced nitrogen removal in the reclaimed wastewater treatment plants (RWWTPs). Manual control of DNBF easily led to unstable process performance and high cost. Consequently, there is a need to automatic control of two decisive operational processes, carbon dosage and backwash, in DNBF. In this study, online control of DNBF was investigated in the pilot-scale DNBF (600 m ·d ), and then applied in the full-scale DNBF (10 × 104 m3·d ). A novel simple online control strategy for carbon dosage with the effluent nitrate as the sole control parameter was designed and tested in the pilot-scale DNBF. Backwash operation was optimized based on the backwash control strategy using turbidity as control parameter. Using the integrated control strategy, in the pilot-scale DNBF, highly efficient nitrate removal with effluent TN level lower than 3 mg·L was achieved and DNBF was not clogged any more. The online control strategy for carbon dosage was successfully applied in a RWWTP. Using the online control strategy, the effluent nitrate concentration was controlled relatively stable and carbon dosage was saved for 18%.

Keywords： Reclaimed water treatment     Denitrifying biofilter     Carbon dosage     Backwash control    

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Can crop science really help us to produce more better-quality food while reducing the world-wide environmental

William J. DAVIES, Susan E. WARD, Alan WILSON

Frontiers of Agricultural Science and Engineering 2020, Volume 7, Issue 1,   Pages 28-44 doi: 10.15302/J-FASE-2019299

Abstract: We discuss novel approaches at both the plant and the crop level that will enhance nutrient and water

Keywords： food security     environmental sustainability     crop water use efficiency     crop science     diet and health    

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Reducing Fiber Technic for 3D Braiding Hollow Coneshaped Fabric

Zhu Jianxun

Strategic Study of CAE 2006, Volume 8, Issue 3,   Pages 66-69

Abstract:

Reducing-fiber technics of 3D hollow coneshaped fabric braided from big end are researched,includingrow-directional reducing-fiber technic, annulus-directional reducing-fiber technic, reducing-fiber technicReducing-fiber technic by thinning fiber is a kind of special annulus-directional reducing-fiber technic

Keywords： 3D braiding     hollow coneshaped fabric     reducing-fiber technic by reducing carrier     reducing-fiber technic    

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Removal of Cu(II) and Fe(III) from aqueous solutions by dead sulfate reducing bacteria

Hong’en QUAN, He BAI, Yang HAN, Yong KANG, Jiao SUN

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 2,   Pages 177-184 doi: 10.1007/s11705-013-1324-7

Abstract: The biosorption properties of dead sulfate reducing bacteria (SRB) for the removal of Cu(II) and Fe(III

Keywords： sulfate reducing bacteria     biosorption     Cu(II)     Fe(III)    

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On Reducing Investments of Metro Construction in China

Shi Zhongheng

Strategic Study of CAE 2001, Volume 3, Issue 1,   Pages 36-39

Abstract: technology, reliable in safety, economical in investment and practical in functions, the possibilities for reducingmetro construction costs are analysed, and the following tentative suggestions for reducing metro construction

Keywords： metro construction     investments     reducing    

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Transportation: meeting the dual challenges of achieving energy security and reducing greenhouse gas

Michael Quanlu WANG, Hong HUO

Frontiers in Energy 2009, Volume 3, Issue 2,   Pages 212-225 doi: 10.1007/s11708-009-0016-y

Abstract: As the population and economy continue to grow globally, demand for energy will continue to grow. The transportation sector relies solely on petroleum for its energy supply. The United States and China are the top two oil-importing countries. A major issue both countries face and are addressing is energy insecurity as a result of the demand for liquid fuels. Improvements in the energy efficiency of vehicles and the substitution of petroleum fuels with alternative fuels can help contain growth in the demand for transportation oil. Although most alternative transportation fuels - when applied to advanced vehicle technologies - can substantially reduce greenhouse emissions, coal-based liquid fuels may increase greenhouse gas emissions by twice as much as gasoline. Such technologies as carbon capture and storage may need to be employed to manage the greenhouse gas emissions of coal-based fuels. At present, there is no ideal transportation fuel option to solve problems related to transportation energy and greenhouse gas emissions. To solve these problems, research and development efforts are needed for a variety of transportation fuel options and advanced vehicle technologies.

Keywords： transportation energy     energy security     greenhouse gases     alternative fuels     vehicle technologies    

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Capacity estimation and preliminary strategy for reducing the release of dioxins in China

YU Gang, ZHANG Qing, HUANG Jun, CAI Zhenxiao, SUI Qian

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 1,   Pages 13-17 doi: 10.1007/s11783-007-0002-8

Abstract: The strategy and action plan for reducing the release of dioxins in China are the most important componentsHow about the capacity for reducing the dioxins release from the key sources?

Keywords： GIS     difference     capacity     scenario     implementation    

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Effects of microfine aggregate in manufactured sand on bleeding and plastic shrinkage cracking of concrete

Branavan ARULMOLY; Chaminda KONTHESINGHA; Anura NANAYAKKARA

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 11,   Pages 1453-1473 doi: 10.1007/s11709-022-0877-2

Abstract: some concrete mixes also included fly ash (FA) and superplasticizer to investigate the effect of free-waterThe results concluded that the MFA replacements and the effective water-to-cement ratio have a significant

Keywords： manufactured sand     fresh concrete     microfines     admixtures     shrinkage     cracking    

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Title Author Date Type Operation

The application of polycarboxylates water-reducing admixture to passenger dedicated line engineering

Huang Zhijiu

Journal Article

Effect of nonionic side chain length of polycarboxylate-ether-based high-range water-reducing admixture

Süleyman ÖZEN, Muhammet Gökhan ALTUN, Ali MARDANI-AGHABAGLOU, Kambiz RAMYAR

Journal Article

Effect of mineral additives and permeability reducing admixtures having different action mechanisms on

Journal Article

An experimental study for optimization of high range water reducing superplasticizer in self compacting

Rahul DUBEY, Pardeep KUMAR

Journal Article

Adsorption properties of polycarboxylate ether-based superplasticizer on cement particles and their resultant

Jinyoung YOON; Byoung Il CHOI; Jae Hong KIM

Journal Article

Chemical additives affect sulfate reducing bacteria biofilm properties adsorbed on stainless steel 316Lsurface in circulating cooling water system

Yu Qi,Jin Li,Rui Liang,Sitong Ji,Jianxiang Li,Meng Liu

Journal Article

Reductant-assisted polydopamine-modified membranes for efficient water purification

Feng Sun, Jinren Lu, Yuhong Wang, Jie Xiong, Congjie Gao, Jia Xu

Journal Article

Online control of biofilm and reducing carbon dosage in denitrifying biofilter: pilot and full-scale

Xiuhong Liu, Hongchen Wang, Qing Yang, Jianmin Li, Yuankai Zhang, Yongzhen Peng

Journal Article

Can crop science really help us to produce more better-quality food while reducing the world-wide environmental

William J. DAVIES, Susan E. WARD, Alan WILSON

Journal Article

Reducing Fiber Technic for 3D Braiding Hollow Coneshaped Fabric

Zhu Jianxun

Journal Article

Removal of Cu(II) and Fe(III) from aqueous solutions by dead sulfate reducing bacteria

Hong’en QUAN, He BAI, Yang HAN, Yong KANG, Jiao SUN

Journal Article

On Reducing Investments of Metro Construction in China

Shi Zhongheng

Journal Article

Transportation: meeting the dual challenges of achieving energy security and reducing greenhouse gas

Michael Quanlu WANG, Hong HUO

Journal Article

Capacity estimation and preliminary strategy for reducing the release of dioxins in China

YU Gang, ZHANG Qing, HUANG Jun, CAI Zhenxiao, SUI Qian

Journal Article

Effects of microfine aggregate in manufactured sand on bleeding and plastic shrinkage cracking of concrete

Branavan ARULMOLY; Chaminda KONTHESINGHA; Anura NANAYAKKARA

Journal Article