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Adaptive Simplified Chicken Swarm Optimization Based on Inverted S-Shaped Inertia Weight

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Chinese Journal of Electronics 2022年第2期31卷 367-386页

作者： GU Yanchun lu haiyan XIANG Lei SHEN Wanqiang School of Science Jiangnan University Wuxi Engineering Technology Research Center for Biological Computing Jiangnan University

Considering the issues of premature convergence and low solution accuracy in solving high-dimensional problems with the basic chicken swarm optimization algorithm, an adaptive simplified chicken swarm optimization algorithm based on inverted S-shaped inertia weight(ASCSO-S) is proposed. Firstly, a simplified chicken swarm optimization algorithm is presented by removing all the chicks from the chicken swarm. Secondly, an inverted S-shaped inertia weight is designed and introduced into the updating process of the roosters and hens to dynamically adjust their moving step size and thus to improve the convergence speed and solution accuracy of the algorithm. Thirdly, in order to enhance the exploration ability of the algorithm, an adaptive updating strategy is added to the updating process of the *** experiments on 21 classical test functions show that ASCSO-S is superior to the other comparison algorithms in terms of convergence speed, solution accuracy, and solution stability. In addition, ASCSO-S is applied to the parameter estimation of Richards model, and the test results indicate that ASCSO-S has the best fitting results compared with other three algorithms.

关键词： particle swarm optimisation solution stability adaptive simplified chicken swarm optimization algorithm parameter estimation Richards model solution accuracy swarm intelligence inverted S-shaped inertia weight convergence speed adaptive updating strategy convergence updating process ASCSO-S

A New Thioimide-Based Fluorescent ＇Turn-On＇ and Chromogenic Chemodosimeter in Acetonitrile and Its Nanoparticles in Water for Highly Selective and Sensitive Detection of Hg^2＋

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Chinese Journal of Chemistry 2017年第4期35卷 435-441页

作者： Yong Mou haiyan lu Meng Li Chuanfeng Chen School of Chemistry and Chemical Engineering University of Chinese Academy of Sciences Beijing 100049 China Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Molecular Recognition and Function Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China

A new thioimide-based fluorescent ‘turn-on’ and chromogenic chemodosimeter for highly selective and sensitive detection of Hg^2＋ has been developed. The dual response of Hg^2＋ was not only in the marked color change of the solution from dark green to colorless, but also in the significant enhancement of the fluorescent intensity of the chemodosimeter in aqueous acetonitrile. Moreover, when the chemodosimeter was assembled into nanoparticles, it could also exhibit remarkably dual response of color change and fluorescence enhancement for detection of Hg^2＋.

关键词： Hg^2+ ion chemodosimeter fluorescence turn-on nanoparticle

Two-phase early prediction method for remaining useful life of lithium-ion batteries based on a neural network and Gaussian process regression

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Frontiers in Energy 2024年第4期18卷 447-462页

作者： Zhiyuan WEI Changying LIU Xiaowen SUN Yiduo LI haiyan lu College of Instrumentation and Electrical Engineering Jilin UniversityChangchun 130021China College of Chemistry Jilin UniversityChangchun 130012China Changsha Automobile Innovation Research Institute of Jilin University Changsha 410006China

Lithium-ion batteries(LIBs)are widely used in transportation,energy storage,and other *** prediction of the remaining useful life(RUL)of lithium batteries not only provides a reference for health management but also serves as a basis for assessing the residual value of the *** order to improve the prediction accuracy of the RUL of LIBs,a two-phase RUL early prediction method combining neural network and Gaussian process regression(GPR)is *** the initial phase,the features related to the capacity degradation of LIBs are utilized to train the neural network model,which is used to predict the initial cycle lifetime of 124 *** Pearson coefficient’s two most significant characteristic factors and the predicted normalized lifetime form a 3D *** Euclidean distance between the test dataset and each cell in the training dataset and validation dataset is calculated,and the shortest distance is considered to have a similar degradation pattern,which is used to determine the initial Dual Exponential Model(DEM).In the second phase,GPR uses the DEM as the initial parameter to predict each test set’s early RUL(ERUL).By testing four batteries under different working conditions,the RMSE of all capacity estimation is less than 1.2%,and the accuracy percentage(AP)of remaining life prediction is more than 98%.Experiments show that the method does not need human intervention and has high prediction accuracy.

关键词： lithium-ion batteries RUL prediction double exponential model neural network Gaussian process regression(GPR)

Effect of the Wall Thickness of the Vessel on FFRCT of Carotid Artery Stenosis

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Computer Modeling in Engineering & Sciences 2019年第12期121卷 835-844页

作者： Long Yu Kesong Xu Jun Wan haiyan lu Shengzhang Wang Institute of Biomechanics Department of Aeronautics and AstronauticsFudan UniversityShanghaiChina Interventional Department Shanghai Jing’an District Central HospitalShanghaiChina Interventional Ultrasound Division of VIP Clinic Department Dongfang Hospital Affiliated to Tongji UniversityShanghaiChina

Fractional flow reserve(FFR)computed from computed tomography angiography(CTA),i.e.,FFRCT has been used in the clinic as a noninvasive parameter for functional assessment of coronary artery *** has also been suggested to be used in the assessment of carotid artery *** wall thickness of the vessel is an important parameter when establishing a fluid-structure coupling model of carotid *** work studies the effect of the vessel wall thickness on hemodynamic parameters such as FFRCT in carotid *** of carotid stenosis are established based on CTA image data using computer-aided design *** is assumed that the vessel wall is a linear elastic and isotropic material,and the blood an incompressible Newtonian *** the pulsating flow condition,ANSYS Transient Structural and CFX are used to simulate the blood flow of fluid-structure coupling in the carotid stenosis model in order to obtain hemodynamic parameters and the corresponding *** results show that when the elastic modulus of the vessel wall is fixed,FFRCT will decrease with the increase of the wall ***,FFRCT will decrease with the increase of the elastic modulus when the wall thickness is *** difference in hemodynamic parameters such as FFRCT,however,is relatively small if the stiffness of the two models are *** results demonstrate that the effect of the vessel wall thickness,especially for a model with small elastic modulus,should be taken into account in using FFRCT for functional assessment of carotid ***,under the linear elasticity and isotropic material assumptions,the stiffness coefficient may replace the elastic modulus and wall thickness as a parameter reflecting material property of the vessel wall in the carotid stenosis model.

关键词： Carotid artery stenosis fractional flow reserve fluid-structure coupling numerical simulation stiffness coefficient

Upconversion luminescence of Er^(3+), Tm^(3+) and Yb^(3+)Co-doped Gd_3Ga_5O_(12) Nanocrystals

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Journal of Wuhan University of Technology(Materials Science) 2014年第1期29卷 13-18页

作者：李艳红 lu haiyan SONG Guoyi ZHANG Xing'ao School of Material Science and Engineering Shenyang University of Chemical Technology College of Chemistry Liaoning University

A series of Er3＋, Tm3＋ and Yb3＋ doped Gd3Ga5O12 nanocrystals were prepared by a combustion method. The X-ray diffraction （XRD）, field emission scanning electron microscope （FESEM） and upconversion （UC） emission spectra were used to characterize the samples. The results of XRD indicate that Gd3Ga5O12：Er3＋, Tm3＋, Yb3＋ nanocrystals with cubic phase can be obtained. Under the excitation of a 980 nm laser, the different rare earth ions doped Gd3Ga5O12 nanoerystals show upconversion luminescence involving the green emission attributed to the ^2H11/2→^4I15/2, 4^S3/2→^4I15/2 transitions of Er3＋ ions, respectively, the red emissions assigned to the ^4F9/2→^4I15/2 transitions of Er3＋ ions and the ^1G4→^3F4 as well as 3F2,3→^3H6 transitions of Tm3＋ ions, respectively, the blue emission attributed to ^1G4→^3H6 transitions of Tm3＋ ions, and the near-infrared assigned to the ^3H4→^3H6 transitions of Tm3＋ ions. The CIE coordinates for the samples are calculated. The dependence of their upconversion luminescence properties on Yb3＋ ion concentration is investieated.

关键词： Gd3Ga5O12:Er3+, Tm3+, Yb3+ nanocrystals combustion method upconversion luminescence

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Numerical Investigation of an Idealized Total Cavopulmonary Connection Physiology Assisted by the Axial Blood Pump With and Without Diffuser

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Computer Modeling in Engineering & Sciences 2020年第12期125卷 1173-1184页

作者： Zhenxin Zhao Tong Chen Xudong Liu Shengzhang Wang haiyan lu Skynor Medical(Shanghai)Medical Co. Ltd.Shanghai201318China Academy of Engineering&Technology Fudan UniversityShanghai200433China Shanghai MicroPort Medical(Group)Co. Ltd.Shanghai201203China Department of Aeronautics and Astronautics Fudan UniversityShanghai200433China Interventional Ultrasound Division of VIP Clinic Department Dongfang Hospital Affiliated to Tongji UniversityShanghai200120China

In order to improve the surgical treatment of the congenital heart disease patient with single ventricle defect,two axial flow blood pumps,one with diffuser and the other without diffuser,were designed and virtually implanted into an idealized total cavopulmonary connection(TCPC)model to form two types of Pump-TCPC physiological *** fluid dynamics(CFD)simulationswere performed to analyze the variations of the hemodynamic characteristics,such as flow field,wall shear stress(WSS),oscillatory shear index(OSI),relative residence time(RRT),between the two Pump-TCPC *** results indicate that the Pump-TCPC with diffuser has better flow field stability,less damage on endothelial cell of vessel wall,and lower risk of vascular injury and thrombosis formation than that without diffuser.

关键词： Computational fluid dynamics total cavopulmonary connection axial flow blood pump vascular damage thrombosis probability

Refinement of structural characteristics and supercapacitor performance of MnO2 nanosheets via CTAB-assisted electrodeposition

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Progress in Natural Science:Materials International 2023年第6期33卷 881-890页

作者： Ziming Wang Hanbo Wang Dongyu Pei Sheng Wan Zhitian Fan Mingrui Yu haiyan lu College of Chemistry Jilin University Key Laboratory of Physics and Technology for Advanced Batteries Ministry of Education Jilin University Zhuhai Zhongli New Energy Sci-Tech Co. Ltd.

MnO2stands out as a highly promising material for electrochemical capacitors due to its impressive theoretical capacitance,cost-effectiveness,eco-friendliness,and abundant natural ***,its inherent low conductivity and structural fragility result in restricted specific capacitance and a shortened cycle life,posing a notable obstacle to its *** the introduction of CTAB(cetyltrimethylammonium bromide),we successfully tailored the surface morphology of the electrode material,yielding a robust and highly conductive layered MnO2electrode *** MnO2/CTAB composite synthesized through a simple electrodeposition method exhibits outstanding performance,achieving a specific capacitance of 665 F g-1at 1 A *** after30,000 cycles,it maintains 92.13% *** performance improvement is primarily attributed to increased conductivity,and additional electrochemically active ***,the assembled MnO2/CTAB//AC capacitor(ACs) achieves a specific capacitance of 70.06 F g-1at 1 A g-1,operating at a voltage of 1.8 *** a power density of 563.36 W kg-1,it reaches an energy density of 35.21 Wh *** work provides an effective approach for high-performance electrode of supercapacitor.

关键词： Manganese dioxide CTAB Asymmetric capacitor Electrodeposition

Carbon-covered Tungsten Carbide Nanoparticles： Solid-state Synthesis and Application as Stable Electrocatalysts for the Hydrogen Evolution Reaction

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Chemical Research in Chinese Universities 2016年第6期32卷 1016-1018页

作者： ZHANG Xuena ZHONG Xinwen YANG Zhe SONG Jiapeng lu haiyan Jilin Police College Changchun 130117 P R. China College of Chemistry Jilin University Changchun 130012 P. R. China Training Center of Jilin Electric Power Co. Ltd. Changchun 130012 P. R. China

Carbon-covered tungsten carbide nanoparticles（cc-WCNPs） were prepared via a one-step solid-statereaction between W（CO）6 and triphenylamine at 850 ℃ tinder a sealed Ar atmosphere. As novel electrocatalysts forthe hydrogen evolution reaction（HER）, cc-WCNPs exhibit an onset potential of-0.14 V vs. reversible hydrogenelectrode（RHE） and a Tafel slope of 64.6 mV/dec in a 0.5mol/L H2SO4 solution. Additionally, these cc-WCNPscatalysts also show excellent electrocatalytic stability after 1000 cycles.

关键词： Hydrogen evolution reaction Solid-state synthesis Nanoparticle Electrocatalysis

Electrochemical synthesis of trimetallic nickel-iron-copper nanoparticles via potential-cycling for high current density anion exchange membrane water-splitting applications

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Journal of Energy Chemistry 2024年第2期89卷 535-542,I0012页

作者： Ziqi Zhang Sheng Wan Hanbo Wang Jinghan He Ruige Zhang Yuhang Qi haiyan lu State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of ChemistryJilin UniversityChangchun 130012JilinChina

Hydrogen is known for its elevated energy density and environmental compatibility and is a promising alternative to fossil *** water electrolysis utilizing renewable energy sources has emerged as a means to obtain high-purity ***,electrocatalysts used in the process are fabricated using conventional wet chemical synthesis methods,such as sol-gel,hydrothermal,or surfactantassisted approaches,which often necessitate intricate pretreatment procedures and are vulnerable to post-treatment ***,this study introduces a streamlined and environmentally conscious one-step potential-cycling approach to generate a highly efficient trimetallic nickel-iron-copper electrocatalyst in situ on nickel *** synthesized material exhibited remarkable performance,requiring a mere 476 mV to drive electrochemical water splitting at 100 mA cm^(-2)current density in alkaline ***,this material was integrated into an anion exchange membrane watersplitting device and achieved an exceptionally high current density of 1 A cm^(-2)at a low cell voltage of2.13 V,outperforming the noble-metal benchmark(2.51 V).Additionally,ex situ characterizations were employed to detect transformations in the active sites during the catalytic process,revealing the structural transformations and providing inspiration for further design of electrocatalysts.

关键词： Electrocatalytic water splitting Hydrogen evolution reaction Oxygen evolution reaction Electrochemical synthesis Anion exchange membrane

维普期刊数据库