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Influence of pore size and membrane surface properties on arsenic removal by nanofiltration membranes

Nathalie Tanne, Rui Xu, Mingyue Zhou, Pan Zhang, Xiaomao Wang, Xianghua Wen

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 2, doi: 10.1007/s11783-019-1105-8

Abstract: itemcontent>

Rejection of arsenate had no relationship with membrane poresize.

Keywords： Arsenate     Nanofiltration     Drinking water     Membrane property     Membrane fouling    

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Structure creation in earthen construction materials: information from dry soil mixtures

Christopher BECKETT, Charles AUGARDE

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 2,   Pages 151-159 doi: 10.1007/s11709-011-0109-7

Abstract: There is increasing interest in the use of earthen construction materials, such as rammed earth, due to their inherent sustainability. These materials have been used by man for thousands of years and some of the earliest examples can be found in China. Features of the structures of these materials arise from the means of production. In particular, in situ earthen construction materials exhibit strong anisotropy due to their layered nature. A more subtle structure effect arises from the way that the earth mixture is deposited. This paper reviews and discusses stratification effects in dry soil mixtures, including some original experimental work, and indicates some links between the features of the dry mixtures and earthen construction materials. Improved understanding of the physical processes in play will allow more accurate specification of these materials in the future, and hence spread their use.

Keywords： rammed earth     stratification     particle size distribution     pore size distribution    

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Preparation of a permanent magnetic hypercrosslinked resin and assessment of its ability to remove organic micropollutants from drinking water

Wei WANG,Yan MA,Qing ZHOU,Chendong SHUANG,Mancheng ZHANG,Aimin LI

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 1,   Pages 96-104 doi: 10.1007/s11783-014-0724-3

Abstract: post-crosslinking reaction and found to possess a high specific surface area of 1149.7 m ·g , a small particle sizeResults showed that the reduction in adsorbent size and the enlargement in sorbent pores both acceleratedMoreover, the effect of particle size on adsorption was more significant than that of pore width.Given that the smallest particle size and the highest specific surface area were possessed by W150, it

Keywords： permanent magnetic resin     organic micropollutant     pore size     molecular size     adsorption    

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Analyzing the characterization of pore structures and permeability of diesel contaminated clays under

Frontiers of Structural and Civil Engineering   Pages 1264-1280 doi: 10.1007/s11709-023-0921-x

Abstract: intrusion porosimetry (MIP) and X-ray micro-computed tomography (XRμCT) were used to characterize the poreanalysis yielded consistent results; it showed that aging renders pores more spherical and isotropic and poreThis weakens the pore connectivity.aging led to the rearrangement of soil particles, tighter interparticle overlapping, and a reduction in poreThe combination of MIP and XRμCT provided a comprehensive and reliable characterization of the soil pore

Keywords： MIP     XRμCT     aging     diesel content     pore structure     permeability characteristics    

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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 structures(pore diameter and porosity) on HDS/HDN performance at the particle scale are investigated via mathematicalAn optimal average HDS/HDN reaction rate exists as the catalyst pore diameter and porosity increase,This study provides insights into the engineering of catalyst particle shapes and pore structures for

Keywords： hydrodesulfurization     hydrodenitrogenation     particle shape     pore structure    

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Uncoupled state space solution to layered poroelastic medium with anisotropic permeability and compressible pore

Zhiyong AI, Wenze ZENG, Yichong CHENG, Chao WU

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 2,   Pages 171-179 doi: 10.1007/s11709-011-0103-0

Abstract: three-dimensional consolidation of layered poroelastic medium with anisotropic permeability and compressible poreNumerical results show that the anisotropy of permeability and the compressibility of pore fluid have

Keywords： solution     layered poroelastic medium     three-dimensional consolidation     anisotropic permeability     compressible pore    

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Influence of pore structure on biologically activated carbon performance and biofilm microbial characteristics

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1419-1

Abstract:

• Pore structure affects biologically activated carbon performance.

Keywords： Granular activated carbon     Biologically activated carbon filter     Bacterial community structure     Pore    

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Effect of catalyst layer mesoscopic pore-morphology on cold start process of PEM fuel cells

Ahmed Mohmed DAFALLA, Fangming JIANG

Frontiers in Energy 2021, Volume 15, Issue 2,   Pages 460-472 doi: 10.1007/s11708-021-0733-4

Abstract: This work studies the effect of CCL mesoscopic pore-morphology on PEMFC cold start.The CCL mesoscale morphology is characterized by two tortuosity factors of the ionomer network and poreThe CCL of less tortuous pore structure reduces the water back diffusion resistance from the CCL to protonbetter cold start performance, novel preparation methods, which can create catalyst layers of larger sizeprimary pores and less tortuous pore structure and ionomer network, are desirable.

Keywords： cold start     energy conversion     fuel cells     mesoscale morphology     tortuosity     water management    

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The size distribution of airborne bacteria and human pathogenic bacteria in a commercial composting plant

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 3, doi: 10.1007/s11783-020-1356-4

Abstract:

•Bacterial concentrations from eight stages were 104–105copies/m3.

Keywords： Size distribution     Airborne bacteria     Biological diversity     Human pathogenic bacteria     Composting plants    

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Particle size distribution and shape control of Au nanoparticles used for particle gun

S. Kida, M. Ichiji, J. Watanabe, I. Hirasawa

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 1,   Pages 60-64 doi: 10.1007/s11705-013-1313-x

Abstract: However, the control of particle size distribution (PSD) and shape of Au nanoparticles is too difficultMoreover, in single-jet and double-jet, the mean size of the obtained Au particles increases with the

Keywords： reduction crystallization     particle size distribution     gene transferring media    

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A better way to do small-for-size liver transplantation in rats

Jiang LI, Yu HOU, Jing LIU, Bin LIU, Li LI

Frontiers of Medicine 2011, Volume 5, Issue 1,   Pages 106-110 doi: 10.1007/s11684-011-0113-2

Abstract:

Establishing a model for small-for-size liver transplantation is the basis for this study of partialThis study aims to explore a simpler and more effective way of establishing a 30% small-for-size liverSmall-for-size orthotopic liver transplantation was performed using Kamada’s two-cuff method.and right lobes for grafting may be a more effective and simpler way of establishing a 30% small-for-size

Keywords： liver transplantation     small-for-size     rats    

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Effect of Cu-ZSM-5 catalysts with different CuO particle size on selective catalytic oxidation of N,N-Dimethylformamide

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 10, doi: 10.1007/s11783-022-1557-0

Abstract:

● A series of Cu-ZSM-5 catalysts were tested for DMF selective catalytic oxidation.

Keywords： N     N-Dimethylformamide     Selective catalytic oxidation     Cu-ZSM-5     CuO particle size    

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polybenzoxazine-based carbon microspheres with nitrogen functionalities: Effects of mixed solvents on pore

Uthen Thubsuang, Suphawadee Chotirut, Apisit Thongnok, Archw Promraksa, Mudtorlep Nisoa, Nicharat Manmuanpom, Sujitra Wongkasemjit, Thanyalak Chaisuwan

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 6,   Pages 1072-1086 doi: 10.1007/s11705-019-1899-8

Abstract: In this study, polybenzoxazine (PBZ)-based carbon microspheres were prepared via a facile method using a mixture of formaldehyde (F) and dimethylformamide (DMF) as the solvent. The PBZ microspheres were successfully obtained at the F/DMF weight ratios of 0.4 and 0.6. These microspheres exhibited high nitrogen contents after carbonization. The microstructures of all the samples showed an amorphous phase and a partial graphitic phase. The porous carbon with the F/DMF ratio of 0.4 showed significantly higher specific capacitance (275.1 F g ) than the reference carbon (198.9 F g ) at 0.05 A g . This can be attributed to the synergistic electrical double-layer capacitor and pseudo-capacitor behaviors of the porous carbon with the F/DMF ratio of 0.4. The presence of nitrogen/oxygen functionalities induced pseudo-capacitance in the microspheres, and hence increased their total specific capacitance. After activation with CO , the specific surface area of the carbon microspheres with the F/DMF ratio of 0.4 increased from 349 to 859 m g and the specific capacitance increased to 424.7 F g . This value is approximately two times higher than that of the reference carbon. The results indicated that the F/DMF ratio of 0.4 was suitable for preparing carbon microspheres with good supercapacitive performance. The nitrogen/oxygen functionalities and high specific surface area of the microspheres were responsible for their high capacitance.

Keywords： PBZ     carbon     porous materials     microsphere     supercapacitor    

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Applications of atomic force microscopy in immunology

Jiping Li, Yuying Liu, Yidong Yuan, Bo Huang

Frontiers of Medicine 2021, Volume 15, Issue 1,   Pages 43-52 doi: 10.1007/s11684-020-0769-6

Abstract: neutrophil-extracellular-trap release by neutrophils, the immunological functions of macrophages, and the membrane pore

Keywords： cellular mechanics     atomic force microscopy     neutrophil extracellular trap     macrophage phagocytosis     pore    

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Influence of surface cracking, anchor head profile, and anchor head size on cast-in headed anchors in

Frontiers of Structural and Civil Engineering   Pages 1163-1187 doi: 10.1007/s11709-023-0987-5

Abstract: above prediction models depends on the effective embedment depth of the anchor and the anchor head size

Keywords： cast-in anchor     concrete cone capacity     geopolymer concrete     head size     surface crack     anchor profile    

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Title Author Date Type Operation

Influence of pore size and membrane surface properties on arsenic removal by nanofiltration membranes

Nathalie Tanne, Rui Xu, Mingyue Zhou, Pan Zhang, Xiaomao Wang, Xianghua Wen

Journal Article

Structure creation in earthen construction materials: information from dry soil mixtures

Christopher BECKETT, Charles AUGARDE

Journal Article

Preparation of a permanent magnetic hypercrosslinked resin and assessment of its ability to remove organic micropollutants from drinking water

Wei WANG,Yan MA,Qing ZHOU,Chendong SHUANG,Mancheng ZHANG,Aimin LI

Journal Article

Analyzing the characterization of pore structures and permeability of diesel contaminated clays under

Journal Article

Catalyst particle shapes and pore structure engineering for hydrodesulfurization and hydrodenitrogenation

Journal Article

Uncoupled state space solution to layered poroelastic medium with anisotropic permeability and compressible pore

Zhiyong AI, Wenze ZENG, Yichong CHENG, Chao WU

Journal Article

Influence of pore structure on biologically activated carbon performance and biofilm microbial characteristics

Journal Article

Effect of catalyst layer mesoscopic pore-morphology on cold start process of PEM fuel cells

Ahmed Mohmed DAFALLA, Fangming JIANG

Journal Article

The size distribution of airborne bacteria and human pathogenic bacteria in a commercial composting plant

Journal Article

Particle size distribution and shape control of Au nanoparticles used for particle gun

S. Kida, M. Ichiji, J. Watanabe, I. Hirasawa

Journal Article

A better way to do small-for-size liver transplantation in rats

Jiang LI, Yu HOU, Jing LIU, Bin LIU, Li LI

Journal Article

Effect of Cu-ZSM-5 catalysts with different CuO particle size on selective catalytic oxidation of N,N-Dimethylformamide

Journal Article

polybenzoxazine-based carbon microspheres with nitrogen functionalities: Effects of mixed solvents on pore

Uthen Thubsuang, Suphawadee Chotirut, Apisit Thongnok, Archw Promraksa, Mudtorlep Nisoa, Nicharat Manmuanpom, Sujitra Wongkasemjit, Thanyalak Chaisuwan

Journal Article

Applications of atomic force microscopy in immunology

Jiping Li, Yuying Liu, Yidong Yuan, Bo Huang

Journal Article

Influence of surface cracking, anchor head profile, and anchor head size on cast-in headed anchors in

Journal Article