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Mechanism and Modeling for Polymerization of Acrylamide in Inverse Microemulsions

Li Xiao,Zhang Weiying,Yuan Huigen

Strategic Study of CAE 2003, Volume 5, Issue 1,   Pages 69-73

Abstract:

After discussion on the mechanism of polymer particle nucleation and growth in inverse microemulsionpolymerization, a schematic physical model for polymerization of acrylamide in inverse microemulsionsFurthermore, several key problems in mathematically modeling of inverse microemulsion polymerization

Keywords： inverse microemulsion polymerization     mechanism     modeling     acrylamide    

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Performance of inverse fluidized bed bioreactor in treating starch wastewater

M. RAJASIMMAN, C. KARTHIKEYAN

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 3,   Pages 235-239 doi: 10.1007/s11705-009-0020-0

Abstract: Aerobic digestion of starch industry wastewater was carried out in an inverse fluidized bed bioreactor

Keywords： inverse fluidization     low-density particles     polypropylene     starch     biofilm    

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Synthesis of nanoiron by microemulsion with Span/Tween as mixed surfactants for reduction of nitrate

ZHANG Yunxia, LI Tielong, JIN Zhaohui, WANG Wei, WANG Shuaima

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 4,   Pages 466-470 doi: 10.1007/s11783-007-0074-5

Abstract: Denitrification of nitrate in groundwater using iron nanoparticles has received increasing interest in recent years. In order to fabricate iron nanoparticles with homogeneously spherical shape and narrow size distribution, a simp

Keywords： spherical     distribution     groundwater     interest     Denitrification    

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Microemulsion-mediated hydrothermal synthesis of flower-like MoS

Yuxia Jiang, Donge Wang, Zhendong Pan, Huaijun Ma, Min Li, Jiahe Li, Anda Zheng, Guang Lv, Zhijian Tian

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 1,   Pages 32-42 doi: 10.1007/s11705-017-1677-4

Abstract: Flower-like intercalated MoS nanomaterials have been successfully synthesized via a microemulsion-mediated

Keywords： microemulsion     intercalated MoS2     catalytic hydrogenation     active sites    

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Efficient conversion of lignin to alkylphenols over highly stable inverse spinel MnFeO catalysts

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 8,   Pages 1085-1095 doi: 10.1007/s11705-022-2236-1

Abstract: The aromatic properties of lignin make it a promising source of valuable chemicals and fuels. Developing efficient and stable catalysts to effectively convert lignin into high-value chemicals is challenging. In this work, MnFe2O4 spinel catalysts with oxygen-rich vacancies and porous distribution were synthesized by a simple solvothermal process and used to catalyze the depolymerization of lignin in an isopropanol solvent system. The specific surface area was 110.5 m2∙g–1, which substantially increased the active sites for lignin depolymerization compared to Fe3O4. The conversion of lignin reached 94%, and the selectivity of alkylphenols exceeded 90% after 5 h at 250 °C. Underpinned by characterizations, products, and density functional theory analysis, the results showed that the catalytic performance of MnFe2O4 was attributed to the composition of Mn and Fe with strong Mn–O–Fe synergy. In addition, the cycling experiments and characterization showed that the depolymerized lignin on MnFe2O4 has excellent cycling stability. Thus, our work provides valuable insights into the mechanism of lignin catalytic depolymerization and paves the way for the industrial-scale application of this process.

Keywords： lignin depolymerization     spinel     catalysts     hydrogenation    

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Research on Anthropomorphic Obstacle Avoidance Trajectory Planning for Adaptive Driving Scenarios Based on Inverse

Jian Wu,Yang Yan,Yulong Liu,Yahui Liu,

Engineering doi: 10.1016/j.eng.2023.07.018

Abstract: Subsequently, a trajectory expectation feature-matching algorithm is proposed that uses maximum entropy inverse

Keywords： Obstacle avoidance trajectory planning     Inverse reinforcement theory     Anthropomorphic     Adaptive driving    

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Gas phase ethylene polymerization over SiO

Liuzhong LI, Aiyou HAO, Ruihua CHENG, Boping LIU

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 1,   Pages 89-95 doi: 10.1007/s11705-010-0558-x

Abstract: In this work, gas phase ethylene polymerization by S-2 catalysts (Cat-1, Cat-2, and Cat-3) was carried

Keywords： UCC S-2 catalyst     Al-alkyl co-catalyst     gas-phase ethylene polymerization     high density polyethylene    

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Precise semi-analytical inverse kinematic solution for 7-DOF offset manipulator with arm angle optimization

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 3,   Pages 435-450 doi: 10.1007/s11465-021-0630-x

Abstract: This study proposes a high-precision, semi-analytical inverse method for EMMs.Firstly, the analytical inverse kinematic solution is established based on joint angle parameterizationSecondly, the analytical inverse kinematic solution for a non-offset spherical–roll–spherical (SRS) redundantThirdly, the error is corrected using a numerical method through the analytical inverse solution basedAfter selecting the stride and termination condition, the precise inverse solution is computed for the

Keywords： 7-DOF redundant manipulator     inverse kinematics     semi-analytical     arm angle     link offset    

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Inverse identification of the mechanical parameters of a pipeline hoop and analysis of the effect of

Ye GAO, Wei SUN

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 3,   Pages 358-368 doi: 10.1007/s11465-019-0539-9

Abstract: In this study, an inverse method was developed by utilizing measured vibration data to identify the supportOn the premise of selecting initial values reasonably, an inverse identification algorithm based on sensitivity

Keywords： inverse identification     pipeline hoop     frequency response function     mechanical parameters     preload    

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Surface modification of biomaterials by photochemical immobilization and photograft polymerization to

Yakai FENG, Haiyang ZHAO, Li ZHANG, Jintang GUO,

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 3,   Pages 372-381 doi: 10.1007/s11705-010-0005-z

Abstract: hemocompatibility of biomaterials by surface modification using photochemical immobilization and photograft polymerization

Keywords： biomimetic amphiphilic     amphiphilic phosphorylcholine     endothelial     functional     biomaterial    

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Synthesis and bulk polymerization kinetics of monomer dehydroabietic acid-(2-acryloyloxy-ethoxy)-ethyl

Haibo ZHANG,Yanping YANG,He LIU,Jie SONG,Shibin SHANG,Zhanqian SONG

Frontiers of Agricultural Science and Engineering 2017, Volume 4, Issue 1,   Pages 97-105 doi: 10.15302/J-FASE-2016115

Abstract: A bulk polymerization monomer dehydro- abietic acid-(2-acryloyloxy-ethoxy)-ethyl ester (DHA-DG-AC) wasThe kinetics of the bulk polymerization of DHA-DG-AC was investigated by Differential Scanning CalorimeterTwo kinds of kinetic model (nth-order model and autocatalytic model) were used to investigate the polymerization

Keywords： dehydroabietic acid     bulk polymerization     kinetics     autocatalytic kinetic model    

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General closed-form inverse kinematics for arbitrary three-joint subproblems based on the product of

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-022-0681-7

Abstract: The inverse kinematics problems of robots are usually decomposed into several Paden–Kahan subproblemsHowever, the simple combination of subproblems cannot solve all the inverse kinematics problems, andThe novel algebraic geometric (NAG) methods that obtain the general closed-form inverse kinematics forclosed-form inverse kinematics.The results verify the proposed general closed-form inverse kinematics based on the NAG methods.

Keywords： inverse kinematics     Paden–Kahan subproblems     three-joint subproblems     product of exponential     closed-form    

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A highly efficient reconfigurable rotation unit based on an inverse butterfly network Article

Chao MA, Zi-bin DAI, Wei LI, Hai-juan ZANG

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 11,   Pages 1784-1794 doi: 10.1631/FITEE.1601265

Abstract: The algorithm uses a self-routing characteristic to configure an inverse butterfly network.

Keywords： Rotation operations     Self-routing     Control-bit generation algorithm     Inverse butterfly network    

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Method for solving the nonlinear inverse problem in gas face seal diagnosis based on surrogate models

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 3, doi: 10.1007/s11465-022-0689-z

Abstract: unacceptable computational cost of inferring the input fault parameters for the observed output or solving the inverseThe presented work develops a surrogate-model-assisted method for solving the nonlinear inverse problem

Keywords： surrogate model     gas face seal     fault diagnosis     nonlinear dynamics     tribology    

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Analysis of nonlinear channel friction inverse problem

CHENG Weiping, LIU Guohua

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 2,   Pages 205-210 doi: 10.1007/s11709-007-0024-0

Abstract: Based on the Backus-Gilbert inverse theory, the singular value decomposition (SVD) for general inversematrices and the optimization algorithm are used to solve the channel friction inverse problem.The resolution and covariance friction inverse model in matrix form is developed to examine the reliability

Keywords： singular     SVD     second-order     covariance     Theoretical    

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Title Author Date Type Operation

Mechanism and Modeling for Polymerization of Acrylamide in Inverse Microemulsions

Li Xiao,Zhang Weiying,Yuan Huigen

Journal Article

Performance of inverse fluidized bed bioreactor in treating starch wastewater

M. RAJASIMMAN, C. KARTHIKEYAN

Journal Article

Synthesis of nanoiron by microemulsion with Span/Tween as mixed surfactants for reduction of nitrate

ZHANG Yunxia, LI Tielong, JIN Zhaohui, WANG Wei, WANG Shuaima

Journal Article

Microemulsion-mediated hydrothermal synthesis of flower-like MoS

Yuxia Jiang, Donge Wang, Zhendong Pan, Huaijun Ma, Min Li, Jiahe Li, Anda Zheng, Guang Lv, Zhijian Tian

Journal Article

Efficient conversion of lignin to alkylphenols over highly stable inverse spinel MnFeO catalysts

Journal Article

Research on Anthropomorphic Obstacle Avoidance Trajectory Planning for Adaptive Driving Scenarios Based on Inverse

Jian Wu,Yang Yan,Yulong Liu,Yahui Liu,

Journal Article

Gas phase ethylene polymerization over SiO

Liuzhong LI, Aiyou HAO, Ruihua CHENG, Boping LIU

Journal Article

Precise semi-analytical inverse kinematic solution for 7-DOF offset manipulator with arm angle optimization

Journal Article

Inverse identification of the mechanical parameters of a pipeline hoop and analysis of the effect of

Ye GAO, Wei SUN

Journal Article

Surface modification of biomaterials by photochemical immobilization and photograft polymerization to

Yakai FENG, Haiyang ZHAO, Li ZHANG, Jintang GUO,

Journal Article

Synthesis and bulk polymerization kinetics of monomer dehydroabietic acid-(2-acryloyloxy-ethoxy)-ethyl

Haibo ZHANG,Yanping YANG,He LIU,Jie SONG,Shibin SHANG,Zhanqian SONG

Journal Article

General closed-form inverse kinematics for arbitrary three-joint subproblems based on the product of

Journal Article

A highly efficient reconfigurable rotation unit based on an inverse butterfly network

Chao MA, Zi-bin DAI, Wei LI, Hai-juan ZANG

Journal Article

Method for solving the nonlinear inverse problem in gas face seal diagnosis based on surrogate models

Journal Article

Analysis of nonlinear channel friction inverse problem

CHENG Weiping, LIU Guohua

Journal Article