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Evolution of humic substances in polymerization of polyphenol and amino acid based on non-destructive characterization

Jianmei Zou, Jianzhi Huang, Huichun Zhang, Dongbei Yue

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 1, doi: 10.1007/s11783-020-1297-y

Abstract: . • MnO2 alone had limited oxidation ability to form HA. • MnO2 played a key role as a catalyst to transformFA to HA in the presence of O2. • MnO2 could affect the structure of the humification products.Our results suggested a synergistic effect between MnO2 and O2 in promoting the polymerization reactionTwo-dimensional correlation spectroscopy (2D-COS) showed that the evolution in the UV-vis spectra followedconditions in the presence of MnO2 had greater amounts of aromatic-C than in the absence of MnO2, demonstrating

Keywords： Two-dimensional correlation spectroscopy (2D-COS)     Humic substances (HSs)     Humification     Manganese dioxide    

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Toughening of vinyl ester resins by two-dimensional MXene nanosheets

Frontiers of Chemical Science and Engineering   Pages 1651-1658 doi: 10.1007/s11705-022-2208-5

Abstract: Two-dimensional nanosheets are highly effective tougheners for vinyl ester resins.The toughening effect is related to the high specific surface area and unique two-dimensional planarIn this study, a coupling agent γ-(2,3-epoxypropoxy) propytrimethoxysilane (Kh-560) was used to

Keywords： MXene nanosheets     2D material     vinyl ester resin     modification     coupling agent    

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Electronic and mechanical responses of two-dimensional HfS

Mohammad SALAVATI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 2,   Pages 486-494 doi: 10.1007/s11709-018-0491-5

Abstract: During the last decade, numerous high-quality two-dimensional (2D) materials with semiconducting electronicAdv. 2017;3: e1700481) nevertheless confirmed that 2D ZrSe and HfSe are among the best candidates toparticularly studied the possibility of engineering of the electronic properties of these attractive 2D

Keywords： 2D materials     mechanical     electronic     DFT    

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Recent progress of two-dimensional nanosheet membranes and composite membranes for separation applications

Wei Wang, Yanying Wei, Jiang Fan, Jiahao Cai, Zong Lu, Li Ding, Haihui Wang

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 4,   Pages 793-819 doi: 10.1007/s11705-020-2016-8

Abstract: Two-dimensional (2D) materials have emerged as a class of promising materials to prepare high-performance2D membranes for various separation applications.membranes enables 2D membranes to achieve promising molecular sieving performance., including membranes based on porous and non-porous 2D nanosheets for various separations.Separation mechanism of 2D membranes and their fabrication methods are also reviewed.

Keywords： membrane separation     2D membranes     2D materials     nanosheet    

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Remediation of 2,4-dichlorophenol-contaminated groundwater using nano-sized CaO in a two-dimensional

Frontiers of Environmental Science & Engineering 2020, Volume 15, Issue 5, doi: 10.1007/s11783-020-1381-3

Abstract:

• Nano CaO2 is evaluated as a remediation agent for 2,4-DCP

Keywords： Calcium peroxide     2     4-DCP     Reaction zone     Fenton reaction    

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A DNA sensor based on upconversion nanoparticles and two-dimensional dichalcogenide materials

Konstantina Alexaki, Davide Giust, Maria-Eleni Kyriazi, Afaf H. El-Sagheer, Tom Brown, Otto L. Muskens, Antonios G. Kanaras

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 4,   Pages 935-943 doi: 10.1007/s11705-020-2023-9

Abstract: interactions occurring between oligonucleotide-coated NaYF : Yb ; Er upconversion nanoparticles and the two-dimensionalsingle-stranded DNA endowing the nanoparticles with the ability to interact with the surface of the two-dimensional

Keywords： upconversion nanoparticles     DNA sensor     two-dimensional materials     MoS2     WS2    

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Interlayer-confined two-dimensional manganese oxide-carbon nanotube catalytic ozonation membrane for

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 5,   Pages 731-744 doi: 10.1007/s11705-021-2110-6

Abstract: Here, a two-dimensional MnO2-incorporated ceramic membrane with tunable interspacing, whichBenefiting from the abundant catalytic active sites on the surface of two-dimensional MnO2This innovative two-dimensional confinement catalytic ozonation membrane could act as a nanoreactor and

Keywords： catalytic membrane reactor     catalytic ozonation     nanoconfinement     two-dimensional manganese oxide    

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Numerical simulation of two-dimensional spouted bed with draft plates by discrete element method

ZHAO Yongzhi, JIANG Maoqiang, CHENG Yi, JIN Yong

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 1,   Pages 5-9 doi: 10.1007/s11705-008-0009-0

Abstract: A discrete element method (DEM)-computational fluid dynamics (CFD) two-way coupling method was employedto simulate the hydrodynamics in a two-dimensional spouted bed with draft plates.The interactions between gas and particles were considered using a two-way coupling method.The flow characteristics of the gas-solid system in the two-dimensional spouted bed were clearly described

Keywords： annulus     BEM-DEM-CFD simulation     gas-solid     two-dimensional     relationship    

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Shape/size controlling syntheses, properties and applications of two-dimensional noble metal nanocrystals

Baozhen An,Mingjie Li,Jialin Wang,Chaoxu Li

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 3,   Pages 360-382 doi: 10.1007/s11705-016-1576-0

Abstract: Two dimensional (2D) nanocrystals of noble metals (e.g., Au, Ag, Pt) often have unique structural anddiscovering the fundamental mechanisms which govern the synthesis of the diverse geometries of these 2DThis has resulted in being able to better control the properties of these 2D structures for specificreview, a brief historical survey of the intrinsic anisotropic properties and quantum size effects of 2D

Keywords： two-dimension     noble metal     nanocrystal     surface plasmon     controllable synthesis    

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Protein adsorption in two-dimensional electrochromatography packed with superporous and microporous cellulose

Dongmei WANG, Guodong JIA, Liang XU, Xiaoyan DONG, Yan SUN

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 3,   Pages 229-234 doi: 10.1007/s11705-009-0213-6

Abstract: The column was designed to provide longitudinal, transverse or 2-dimensional (2D) eEF.The dynamic binding capacity (DBC) in the presence of 2D eEF was higher than in the presence of a one-dimensionalThe effect of flow velocity on the DBC of the two adsorbents was also demonstrated.With increasing flow rate, the DEAE-SC column could still offer high DBC and AE in the presence of the 2DThe results indicate that the 2D electrochromatography packed with the superporous cellulose adsorbent

Keywords： electrochromatography     two-dimensional electric field     dynamic binding capacity     superporous cellulose bead    

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A New Two_dimensional Linear Discriminant Analysis Algori thmBased on Fuzzy Set Theory

Zheng Yujie,Yang Jingyu,Wu Xiaojun, Li Yongzhi

Strategic Study of CAE 2007, Volume 9, Issue 2,   Pages 49-53

Abstract:

2DLDA algorithm is based on2D matrices and overleaps the step of transformingIn this paper,a new2DLDA algorithm,named fuzzy2DLDA,is proposed.Fuzzy k-nearest neighbour(FKNN) is implementedincorporated into the process of feature extraction.The proposed algorithm inherits the virtue of conventional2DLDAface database demonstrate rec ognition rates of the proposed algorithm outperform that of conventional2DLDA

Keywords： two-dimensional linear discriminant analysis(2DLDA)     fuzzy two-dimensional linear    

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A two-dimensional numerical model for eutrophication in Baiyangdian Lake

Xudong WANG, Shushen ZHANG, Suling LIU, Jingwen CHEN

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 6,   Pages 815-824 doi: 10.1007/s11783-011-0383-6

Abstract: Hydrodynamic, physical, and biochemical processes in the Baiyangdian Lake water environment were analyzed comprehensively. An eutrophication eco-dynamics model including the effects of reed resistance on flow was coupled with the hydrodynamics governing equations. An improvement on the Water Quality Analysis Simulation Program (WASP, a modeling system introduced by the US Environmental Protection Agency) is established, which uses the zooplankton kinetic equation. The model simulates water quality constituents associated with eutrophication in the lake, including phytoplankton, zooplankton, nitrogen, phosphorus, dissolved oxygen, and others. Various kinetic coefficients were calibrated using measured data or information from relevant literature, to study eutrophication in the lake. The values calculated by the calibrated model agree well with field data, including ammonia nitrogen, total nitrogen, total phosphorus and dissolved oxygen. Changes related to nutrition and dissolved oxygen during the processes were simulated. The present model describes the temporal variation of water quality in Baiyangdian Lake with reasonable accuracy. Deviations between model-simulated and observed values are discussed. As an ideal tool for environmental management of the lake, this model can be used to predict its water quality, and be used in research to examine the eutrophication process.

Keywords： eutrophication     eco-dynamics     hydrodynamics     improved Water Quality Analysis Simulation Program (WASP) model     Baiyangdian Lake    

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Numerical investigation of circle defining curve for two-dimensional problem with general boundaries

Chung Nguyen VAN

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 1,   Pages 92-102 doi: 10.1007/s11709-018-0472-8

Abstract: The scaled boundary finite element method (SBFEM) is applied to the static analysis of two dimensional

Keywords： exact geometry     circular defining curve     general boundaries     SBFEM    

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Size effects in two-dimensional layered materials modeled by couple stress elasticity

Wipavee WONGVIBOONSIN, Panos GOURGIOTIS, Chung Nguyen VAN, Suchart LIMKATANYU, Jaroon RUNGAMORNRAT

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 2,   Pages 425-443 doi: 10.1007/s11709-021-0707-y

Abstract: In the present study, the effect of material microstructure on the mechanical response of a two-dimensional

Keywords： cosserat     layered materials     size effects     microstructure    

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Three-dimensional stability analysis of the dam foundation at Baise

XU Qianjun, LI Xu, CHEN Zuyu

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 2,   Pages 217-221 doi: 10.1007/s11709-007-0026-y

Abstract: It is usually difficult to determine the actual safety factors of rock masses in an ordinary two-dimensionalA three-dimensional stability analysis method based on the upper-bound theorem was employed to solveTwo failure patterns against sliding are analyzed.that a special overflow dam monolith can be considered to be safe in case of considering the three dimensional

Keywords： ordinary two-dimensional     randomly     monolith     three-dimensional stability     different    

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Title Author Date Type Operation

Evolution of humic substances in polymerization of polyphenol and amino acid based on non-destructive characterization

Jianmei Zou, Jianzhi Huang, Huichun Zhang, Dongbei Yue

Journal Article

Toughening of vinyl ester resins by two-dimensional MXene nanosheets

Journal Article

Electronic and mechanical responses of two-dimensional HfS

Mohammad SALAVATI

Journal Article

Recent progress of two-dimensional nanosheet membranes and composite membranes for separation applications

Wei Wang, Yanying Wei, Jiang Fan, Jiahao Cai, Zong Lu, Li Ding, Haihui Wang

Journal Article

Remediation of 2,4-dichlorophenol-contaminated groundwater using nano-sized CaO in a two-dimensional

Journal Article

A DNA sensor based on upconversion nanoparticles and two-dimensional dichalcogenide materials

Konstantina Alexaki, Davide Giust, Maria-Eleni Kyriazi, Afaf H. El-Sagheer, Tom Brown, Otto L. Muskens, Antonios G. Kanaras

Journal Article

Interlayer-confined two-dimensional manganese oxide-carbon nanotube catalytic ozonation membrane for

Journal Article

Numerical simulation of two-dimensional spouted bed with draft plates by discrete element method

ZHAO Yongzhi, JIANG Maoqiang, CHENG Yi, JIN Yong

Journal Article

Shape/size controlling syntheses, properties and applications of two-dimensional noble metal nanocrystals

Baozhen An,Mingjie Li,Jialin Wang,Chaoxu Li

Journal Article

Protein adsorption in two-dimensional electrochromatography packed with superporous and microporous cellulose

Dongmei WANG, Guodong JIA, Liang XU, Xiaoyan DONG, Yan SUN

Journal Article

A New Two_dimensional Linear Discriminant Analysis Algori thmBased on Fuzzy Set Theory

Zheng Yujie,Yang Jingyu,Wu Xiaojun, Li Yongzhi

Journal Article

A two-dimensional numerical model for eutrophication in Baiyangdian Lake

Xudong WANG, Shushen ZHANG, Suling LIU, Jingwen CHEN

Journal Article

Numerical investigation of circle defining curve for two-dimensional problem with general boundaries

Chung Nguyen VAN

Journal Article

Size effects in two-dimensional layered materials modeled by couple stress elasticity

Wipavee WONGVIBOONSIN, Panos GOURGIOTIS, Chung Nguyen VAN, Suchart LIMKATANYU, Jaroon RUNGAMORNRAT

Journal Article

Three-dimensional stability analysis of the dam foundation at Baise

XU Qianjun, LI Xu, CHEN Zuyu

Journal Article