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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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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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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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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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Design and mechanism insight on SiC quantum dots sensitized inverse opal TiO with superior photocatalytic

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 12,   Pages 1913-1924 doi: 10.1007/s11705-023-2350-8

Abstract: The combination of SiC quantum dots sensitized inverse opal TiO2 photocatalyst is designedspectroscopic techniques, it is found that electrons transfer directionally from SiC quantum dots to inversesup>), which is 6.2 times (0.006 min–1) and 2.1 times (0.018 min–1) of the bare inverseTherefore, the stability and non-toxicity of SiC quantum dots sensitized inverse opal TiO2

Keywords： inverse opal TiO2     silicon carbide quantum dots     quantum dot sensitized photocatalyst     type-II    

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Generation of closed-form inverse kinematics for reconfigurable robots

ZHAO Jie, WANG Weizhong, GAO Yongsheng, CAI Hegao

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 1,   Pages 91-96 doi: 10.1007/s11465-008-0013-6

Abstract: For reconfigurable robots, the automatic generation of inverse kinematics is a key problem, because suchA generalized, decomposable, and reusable approach for close-form inverse kinematics of reconfigurable

Keywords： different     effectiveness     generation     reconfigurable     algebraic    

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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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Ahybrid biogeography-based optimization method for the inverse kinematics problem of an 8-DOF redundant

Zi-wu REN,Zhen-hua WANG,Li-ning SUN

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 7,   Pages 607-616 doi: 10.1631/FITEE.14a0335

Abstract: characteristics of multiple degrees of freedom and complex joint structure, and it is not easy to obtain its inverseThe inverse kinematics problem of a humanoid manipulator can be formulated as an equivalent minimizationoptimization (BBO) is a new biogeography inspired optimization algorithm, and it can be adopted to solve the inverseThe proposed HBBO algorithm has been used to solve the inverse kinematics problem of the 8-DOF redundant

Keywords： Inverse kinematics problem     8-DOF humanoid manipulator     Biogeography-based optimization (BBO)     Differential    

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Study on Decoupling Control of Bearingless Permanent Magnet Synchronous Motors Based on Inverse System

Fei Decheng,Zhu Huangqiu

Strategic Study of CAE 2005, Volume 7, Issue 11,   Pages 48-54

Abstract:

A decoupling control approach based on dynamic inverse system theory has been developed for the bearinglessFirstly, inverse system theory is briefly introduced.inversion theory for BPMSM is discussed in detail, and the dynamic decoupling control arithmetic based on inverse

Keywords： BPMSM     inverse system     dynamic feedback linearization     decoupling control    

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An Improved BP Algorithm Applying to Inverse Kinematics Problems of Robot Manipulator

Wu Aiguo,Hao Runsheng

Strategic Study of CAE 2005, Volume 7, Issue 7,   Pages 34-38

Abstract: The multilayer forward neural networks are used to establish the inverse kinematics models for robotThe simulations demonstrate that the proposed method is effective, and improves the inverse kinematics

Keywords： neural networks     BP algorithm     active function     robot manipulator     inverse kinematics    

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Title Author Date Type Operation

Performance of inverse fluidized bed bioreactor in treating starch wastewater

M. RAJASIMMAN, C. KARTHIKEYAN

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

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

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

Design and mechanism insight on SiC quantum dots sensitized inverse opal TiO with superior photocatalytic

Journal Article

Generation of closed-form inverse kinematics for reconfigurable robots

ZHAO Jie, WANG Weizhong, GAO Yongsheng, CAI Hegao

Journal Article

Mechanism and Modeling for Polymerization of Acrylamide in Inverse Microemulsions

Li Xiao,Zhang Weiying,Yuan Huigen

Journal Article

Ahybrid biogeography-based optimization method for the inverse kinematics problem of an 8-DOF redundant

Zi-wu REN,Zhen-hua WANG,Li-ning SUN

Journal Article

Study on Decoupling Control of Bearingless Permanent Magnet Synchronous Motors Based on Inverse System

Fei Decheng,Zhu Huangqiu

Journal Article

An Improved BP Algorithm Applying to Inverse Kinematics Problems of Robot Manipulator

Wu Aiguo,Hao Runsheng

Journal Article