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Control algorithm of a servo platform

Shouyong XIE, Xiwen LI, Shuzi YANG, Mingjin YANG,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 3,   Pages 353-355 doi: 10.1007/s11465-010-0098-6

Abstract: special-purpose three-axis servo platform, this paper presents an improved grey prediction proportional integralderivative (PID) control algorithm.

Keywords： grey prediction     proportional integral derivative (PID) control     improved algorithm     weight     servo platform    

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Convergence performance comparisons of PID, MRAC, and PID+MRAC hybrid controller

Dan ZHANG,Bin WEI

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 2,   Pages 213-217 doi: 10.1007/s11465-016-0386-x

Abstract:

This study proposes a hybrid controller by combining a proportional-integral-derivative (PID) control

Keywords： proportional-integral-derivative (PID) control     model reference adaptive control     hybrid control     convergence    

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Nanopositioning and Nonlinearity Compensation for Step Imprint Lithography Tool

LU Bing-heng, LIU Hong-zhong, DING Yu-cheng, WANG Li, QIU Zhi-hui

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 1,   Pages 6-13 doi: 10.1007/s11465-005-0003-x

Abstract: To avoid and eliminate these nonlinearity errors, radial basis function proportional integral derivative

Keywords： different     nonoscillatory     nonlinearity     integral derivative     positioning    

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Comparisons of bridges flutter derivatives and generalized ones

Fuyou XU , Zhe ZHANG , Cailiang HUANG , Airong CHEN ,

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 3,   Pages 272-278 doi: 10.1007/s11709-009-0042-1

Abstract: The concept of “generalized flutter derivative” is proposed, and its physical meaning is

Keywords： bridge     flutter derivative     generalized flutter derivative     self-excited aerodynamic force     Sutong Bridge    

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Online recognition of drainage type based on UV-vis spectra and derivative neural network algorithm

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1430-6

Abstract:

• UV-vis absorption analyzer was applied in drainage type online recognition.

Keywords： Drainage online recognition     UV-vis spectra     Derivative spectrum     Convolutional neural network    

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Designing a novel consensus protocol formultiagent systemswith general dynamics under directed networks Article

Hao-liang LI, Ren-nong YANG, Qiu-ni LI

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 8,   Pages 1071-1081 doi: 10.1631/FITEE.1601422

Abstract: First, a novel consensus protocol based on proportional-integral-derivative (PID) control is proposed

Keywords： Multi-agent     Consensus     PID control     Linear matrix inequality    

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Proportional directional valve based automatic steering system for tractors Project supported by the Synergistic Innovation Center of Modern Agricultural Equipment and Technology, China (No. NZXT01201401)

Jin-yi LIU,Jing-quan TAN,En-rong MAO,Zheng-he SONG,Zhong-xiang ZHU

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 5,   Pages 458-464 doi: 10.1631/FITEE.1500172

Abstract: The steering controller is based on proportional-integral-derivative (PID) running on a 51-microcontroller-unit

Keywords： Automatic steering system     Hydraulic circuit     Proportional directional valve     Proportional-integral-derivative    

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Trapezoidal Intuitionistic Fuzzy Aggregation Operator Based on Choquet Integral and Its Application to

Xi-hua Li,Xiao-hong Chen

Frontiers of Engineering Management 2015, Volume 2, Issue 3,   Pages 266-276 doi: 10.15302/J-FEM-2015048

Abstract: The Choquet integral can serve as a useful tool to aggregate interacting criteria in an uncertain environmentIn this paper, a trapezoidal intuitionistic fuzzy aggregation operator based on the Choquet integralA trapezoidal intuitionistic fuzzy aggregation operator based on the Choquet integral is then definedA new multi-criteria decision-making method based on a trapezoidal intuitionistic fuzzy Choquet integral

Keywords： multi-criteria decision making     trapezoidal intuitionistic fuzzy numbers     Choquet integral     fuzzy measure    

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Mesoscale fabrication of a complex surface for integral impeller blades

Xibin WANG,Tianfeng ZHOU,Lijing XIE,Li JIAO,Zhibing LIU,Zhiqiang LIANG,Pei YAN

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 1,   Pages 116-131 doi: 10.1007/s11465-017-0426-1

Abstract:

Integral impeller is the most important component of a mini-engine.However, the machining of a mesoscale impeller with a complex integral surface is difficult because ofFor the fabrication of a complex integral impeller, a micro-ball-end mill is designed in accordance withSubsequently, fractal theory is applied to characterize the surface quality of the integral impeller.The fractal theory-based characterization shows that the completed mesoscale integral impeller exhibits

Keywords： mesoscale fabrication     micro-milling tool     mesoscale milling     impeller blade    

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Stability and coupling dynamic behavior of nonlinear journal active electromagnetic bearing rotor system

LU Yanjun, HEI Di, WANG Yuan, DAI Rong, LU Yanjun, LIU Heng, YU Lie

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 2,   Pages 193-199 doi: 10.1007/s11465-008-0023-4

Abstract: system equations are formulated by combining equations for rotor motion and decentralized proportional integral

Keywords： proportional integral     bifurcation     corresponding     integral differential     predictor-corrector mechanism    

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Investigation on the integral output power model of a large-scale wind farm

BAO Nengsheng, MA Xiuqian, NI Weidou

Frontiers in Energy 2007, Volume 1, Issue 1,   Pages 67-78 doi: 10.1007/s11708-007-0006-x

Abstract: The integral output power model of a large-scale wind farm is needed when estimating the wind farm sThe calculation algorithms and steps of the integral output power model of a large-scale wind farm are

Keywords： power model     actual     energy     large-scale     practical measurement    

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A novel flavonol-based colorimetric and turn-on fluorescent probe for rapid determination of hydrazine in real water samples and its bioimaging and

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 1,   Pages 24-33 doi: 10.1007/s11705-022-2171-1

Abstract: Hydrazine is extremely toxic and causes severe harm to human body. Herein, a novel fluorescent probe 4-oxo-2-styryl-4H-chromen-3-yl thiophene-2-carboxylate (FHT) was synthesized for detecting hydrazine by using natural cinnamaldehyde as starting material. This probe exhibited significantly enhanced fluorescence response towards hydrazine over various common metal ions, anions, and amine compounds. The detection limit of probe FHT for hydrazine was as low as 0.14 μmol·L–1, significantly lower than that of the threshold value of 0.312 μmol·L–1, imposed by the Environmental Protection Agency. Moreover, the proposed probe was able to detect hydrazine within wide pH (5–10) and linear detection ranges (0–110 μmol·L–1). This probe was employed for determining trace hydrazine in different environmental water samples. The probe FHT-loaded filter paper strips were able to conveniently detect hydrazine of low concentration through distinct naked-eye and fluorescent color changes. Importantly, the probe FHT with low cytotoxicity was successfully applied to visualize hydrazine in living Hela cells and zebrafish.

Keywords： cinnamaldehyde     3-hydroxychromone derivative     hydrazine     fluorescent probe    

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Graphene-reinforced metal-organic frameworks derived cobalt sulfide/carbon nanocomposites as efficient multifunctional electrocatalysts

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 6,   Pages 1487-1499 doi: 10.1007/s11705-021-2085-3

Abstract: Developing cost-effective electrocatalysts for oxygen reduction reaction (ORR), oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) is vital in energy conversion and storage applications. Herein, we report a simple method for the synthesis of graphene-reinforced CoS/C nanocomposites and the evaluation of their electrocatalytic performance for typical electrocatalytic reactions. Nanocomposites of CoS embedded in N, S co-doped porous carbon and graphene (CoS@C/Graphene) were generated via simultaneous sulfurization and carbonization of one-pot synthesized graphite oxide-ZIF-67 precursors. The obtained CoS@C/Graphene nanocomposites were characterized by X-ray diffraction, Raman spectroscopy, thermogravimetric analysis-mass spectroscopy, scanning electronic microscopy, transmission electronic microscopy, X-ray photoelectron spectroscopy and gas sorption. It is found that CoS nanoparticles homogenously dispersed in the in situ formed N, S co-doped porous carbon/graphene matrix. The CoS@C/10Graphene composite not only shows excellent electrocatalytic activity toward ORR with high onset potential of 0.89 V, four-electron pathway and superior durability of maintaining 98% of current after continuously running for around 5 h, but also exhibits good performance for OER and HER, due to the improved electrical conductivity, increased catalytic active sites and connectivity between the electrocatalytic active CoS and the carbon matrix. This work offers a new approach for the development of novel multifunctional nanocomposites for the next generation of energy conversion and storage applications.

Keywords： MOF derivative     graphene     electrocatalyst     oxygen reduction reaction     oxygen evolution reaction     hydrogen    

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Synthesis of a cardanol-amine derivative using an ionic liquid catalyst

Atanu Biswas, Carlucio R. Alves, Maria T. S. Trevisan, Roseane L. E. da Silva, Roselayne F. Furtado, Zengshe Liu, H. N. Cheng

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 3,   Pages 425-431 doi: 10.1007/s11705-016-1581-3

Abstract: In this work cardanol was first epoxidized, and a novel aniline derivative prepared from it under mild

Keywords： cardanol     epoxidation     aminohydrin     aniline     ionic liquid     aniline-formaldehyde    

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Intelligent fractional-order integral sliding mode control for PMSM based on an improved cascade observer Research Articles

Lingfei XIAO, Leiming MA, Xinhao HUANG,lfxiao@nuaa.edu.cn

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 2,   Pages 328-338 doi: 10.1631/FITEE.2000317

Abstract: The proposed FOISMC strategy associates strong points of the integral action (which can eliminate steady-state

Keywords： Permanent magnet synchronous motor     Fractional-order integral sliding mode     Optimization algorithm     Sensorless    

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Title Author Date Type Operation

Control algorithm of a servo platform

Shouyong XIE, Xiwen LI, Shuzi YANG, Mingjin YANG,

Journal Article

Convergence performance comparisons of PID, MRAC, and PID+MRAC hybrid controller

Dan ZHANG,Bin WEI

Journal Article

Nanopositioning and Nonlinearity Compensation for Step Imprint Lithography Tool

LU Bing-heng, LIU Hong-zhong, DING Yu-cheng, WANG Li, QIU Zhi-hui

Journal Article

Comparisons of bridges flutter derivatives and generalized ones

Fuyou XU , Zhe ZHANG , Cailiang HUANG , Airong CHEN ,

Journal Article

Online recognition of drainage type based on UV-vis spectra and derivative neural network algorithm

Journal Article

Designing a novel consensus protocol formultiagent systemswith general dynamics under directed networks

Hao-liang LI, Ren-nong YANG, Qiu-ni LI

Journal Article

Proportional directional valve based automatic steering system for tractors Project supported by the Synergistic Innovation Center of Modern Agricultural Equipment and Technology, China (No. NZXT01201401)

Jin-yi LIU,Jing-quan TAN,En-rong MAO,Zheng-he SONG,Zhong-xiang ZHU

Journal Article

Trapezoidal Intuitionistic Fuzzy Aggregation Operator Based on Choquet Integral and Its Application to

Xi-hua Li,Xiao-hong Chen

Journal Article

Mesoscale fabrication of a complex surface for integral impeller blades

Xibin WANG,Tianfeng ZHOU,Lijing XIE,Li JIAO,Zhibing LIU,Zhiqiang LIANG,Pei YAN

Journal Article

Stability and coupling dynamic behavior of nonlinear journal active electromagnetic bearing rotor system

LU Yanjun, HEI Di, WANG Yuan, DAI Rong, LU Yanjun, LIU Heng, YU Lie

Journal Article

Investigation on the integral output power model of a large-scale wind farm

BAO Nengsheng, MA Xiuqian, NI Weidou

Journal Article

A novel flavonol-based colorimetric and turn-on fluorescent probe for rapid determination of hydrazine in real water samples and its bioimaging and

Journal Article

Graphene-reinforced metal-organic frameworks derived cobalt sulfide/carbon nanocomposites as efficient multifunctional electrocatalysts

Journal Article

Synthesis of a cardanol-amine derivative using an ionic liquid catalyst

Atanu Biswas, Carlucio R. Alves, Maria T. S. Trevisan, Roseane L. E. da Silva, Roselayne F. Furtado, Zengshe Liu, H. N. Cheng

Journal Article

Intelligent fractional-order integral sliding mode control for PMSM based on an improved cascade observer

Lingfei XIAO, Leiming MA, Xinhao HUANG,lfxiao@nuaa.edu.cn

Journal Article