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PSO Optimal Control of Model-free Adaptive Control for PVC Polymerization Process

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International Journal of Automation and computing 2018年第4期15卷 482-491页

作者： Shu-Zhi Gao xiao-Feng Wu liang-liang Luan Jie-Sheng Wang gui-Cheng Wang School of Electronic and Information Engineering Shenyang University of Chemical Technology University of Science and Technology Liaoning National Financial Security and System Equipment Engineering Research Center

Polyvinyl chloride （PVC） polymerizing process is a typical complicated industrial process with the characteristics of large inertia, big time delay and nonlinearity. Firstly, for the general nonlinear and discrete time system, a design scheme of model-free adaptive （MFA） controller is given. Then, particle swarm optimization （PSO） algorithm is applied to optimizing and setting the key parameters for controller tuning. After that, the MFA controller is used to control the system of polymerizing temperature. Finally, simulation results are given to show that the MAC strategy based on PSO obtains a good controlling performance index.

关键词： Polyvinyl chloride(PVC) polymerization temperature model-free adaptive control particle swarm optimization(PSO)algorithm.

Orbitronics for energy-efficient magnetization switching

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Science China(Information Sciences) 2025年第1期 398-399页

作者： Yuxuan YAO Daoqian ZHU Qingtao XIA Jianing liang Yuhao JIANG Zhiyang PENG Jiaxu LI Chen xiao Renyou XU Wenwen WANG Xiantao SHANG Shiyang LU Dapeng ZHU Hong-Xi LIU Kaihua CAO Weisheng ZHAO Fert Beijing Institute School of Integrated Circuit Science and Engineering Beihang University National Key Lab of Spintronics Institute of International Innovation Beihang University Qingdao Research Institute Beihang University Truth Memory Corporation

Spin-orbit torque （SOT）,as a promising writing method for magnetic random-access memory （MRAM）,has garnered widespread interest for over a decade [1].Heavy metals,such as β-W,have been broadly adopted as spin current sources,but suffer from phase change at a limited thickness,resulting in a dramatic reduction of the charge-tospin conversion efficiency θSH[2].The thickness limitation leads to stringent etching conditions and large distribution among devices,posing challenges for simultaneously satisfying SOT efficiency,etching-stop margins,and back-end-ofline （BEOL） compatibility.

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Neighbor Sum Distinguishing Edge Coloring of Subcubic Graphs

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Acta Mathematica Sinica,English Series 2017年第2期33卷 252-262页

作者： xiao Wei YU Guang Hui WANG Jian liang WU gui Ying YAN School of Mathematics Shandong University School of Mathematics Academy of Mathematics and System SciencesChinese Academy of Sciences

A proper edge-k-coloring of a graph G is a mapping from E（G） to {1, 2,..., k} such that no two adjacent edges receive the same color. A proper edge-k-coloring of G is called neighbor sum distinguishing if for each edge uv ∈ E（G）, the sum of colors taken on the edges incident to u is different from the sum of colors taken on the edges incident to v. Let X（G ） denote the smallest value k in such a ＇ G coloring of G. This parameter makes sense for graphs containing no isolated edges （we call such graphs normal）. The maximum average degree mad（G） of G is the maximum of the average degrees of its non-empty subgraphs. In this paper, we prove that if G is a normal subcubic graph with mad（G）〈 5 then x＇（G） ≤ 5. We also prove that if G is a normal subcubic graph with at least two 2-vertices, 6 colors are enough for a neighbor sum distinguishing edge coloring of G, which holds for the list version as well.

关键词： Proper edge coloring neighbor sum distinguishing edge coloring maximum average de-gree subcubic graph planar graph

Surface-assembled highly flexible Na_(3)(VOPO_(4))_(2)F nanocube cathode for high-rate binder-free Na-ion batteries

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Chinese Chemical Letters 2021年第2期32卷 826-829页

作者： Bohua Deng Ning Yue Haoyang Dong Qiuyue gui liang xiao Jinping Liu School of Chemistry Chemical Engineering and Life ScienceWuhan University of TechnologyWuhan 430070China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology.Wuhan 430070China Key Laboratory for Photonic and Electronic Bandgap Materials Ministry of EducationSchool of Physics and Electronic EngineeringHarbin Normal UniversityHarbin 150025China

Flexible Na-ion storage cathodes are still very few due to the challenge in achieving both reliable mechanical flexibility and excellent electrochemical ***,a new type of flexible Na_(3)(VOPO_(4))_(2)F cathode with nanocubes tightly assembled on carbon cloth is fabricated by a facile solvothe rmal method for the first *** cathode is able to exhibit superior rate capability and stable cycling performa nce up to 1000 cycles,due to the surface-assembling of crystalline nanocubes on carbon *** addition,it shows good mechanical flexibility,nearly no capacity decay is observed after continuous bending of 500 *** this novel cathode and a directly-grown Na_(2)Ti_(2)O_(5) anode,a fully binde r-free Na-ion battery is *** can deliver a high wo rking voltage and increased gravimetric energy/power densities(maximum values:220.2 Wh/kg;5674,7 W/kg),and can power a LED indicator at bending angles fro m 0° to 180°.

关键词： Flexible cathode Na_(3)(VOPO_(4))_(2)F Nanocube Surface-assembling Sodium-ion battery

Anomalies in Special Permutation Flow Shop Scheduling Problems

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Chinese Journal of Mechanical Engineering 2020年第3期33卷 53-59页

作者： Lin gui liang Gao Xinyu Li State Key Laboratory of Digital Manufacturing Equipment and Technology Huazhong University of Science and TechnologyWuhan 430074China

Recent researches show that there are some anomalies,which are not satisfied with common sense,appearing in some special permutation flow shop scheduling problems(PFSPs).These anomalies can be divided into three different types,such as changing the processing time of some operations,changing the number of total jobs and changing the number of total *** paper summarizes these three types of anomalies showing in the special PFSPs and gives some examples to make them better *** extended critical path is proposed and the reason why these anomalies happen in special PFSPs is given:anomalies will occur in these special PFSPs when the time of the operations on the reverse critical path *** that,the further reason for these anomalies is presented that when any one of these three types of anomalies happens,the original constraint in the special PFSPs is destroyed,which makes the anomalies ***,the application of these anomalies in production practice is given through examples and also with the possible research *** main contribution of this research is analyzing the intial reason why the anomalies appear in special PFSPs and pointing out the application and the possible research directions of all these three types of anomalies.

关键词： Scheduling Permutation flow shop Anomaly

Near-infrared light-driven multifunctional metal ion(Cu^(2+))-loaded polydopamine nanomotors for therapeutic angiogenesis in critical limb ischemia

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Nano Research 2023年第4期16卷 5108-5120页

作者： liang gui Juju Huang Yi Xing Yongjun Li Junjie Zou Yingwei Zhu xiao liang Xiwei Zhang Qiang Xu Xin Du Department of Vascular Surgery The First Affiliated Hospital of Nanjing Medical UniversityNanjing 210029China Department of Gastroenterology The Affiliated Wuxi No.2 People’s Hospital of Nanjing Medical UniversityWuxi 214002China Beijing Key Laboratory for Bioengineering and Sensing Technology Department of Chemistry&Biological EngineeringUniversity of Science&TechnologyBeijing 100083China Department of Vascular Surgery Beijing HospitalNational Center of GerontologyInstitute of Geriatric MedicineChinese Academy of Medical Science and Peking Union Medical CollegeBeijing 100730China Department of Anesthesiology The Affiliated Wuxi No.2 People’s Hospital of Nanjing Medical UniversityWuxi 214002China Department of Intervention Wujin Hospital Affiliated to Jiangsu UniversityWujin Clinical College of Xuzhou Medical UniversityChangzhou 213002China Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy Xuzhou Medical UniversityXuzhou 221004China

Most of the current nanomedicine-based treatments for critical limb ischemia(CLI)only aim at promoting angiogenesis,ignoring the negative influence on the therapeutic effects caused by the complex pathological micro-environment of ischemic ***,near-infrared(NIR)light-driven metal ion(Cu^(2+))-loaded polydopamine(PDA)nanomotors(JMPN@Cu^(2+))is designed and *** to the good antioxidant and anti-inflammatory activities of PDA,JMPN@Cu^(2+)exhibits excellent biocompatibility and significantly improves the ischemic ***,based on superior photothermal conversion effect and jellyfish-like structure,the nanomotors are quickly propelled under NIR laser with low energy intensity to acquire the ability of movement and facilitate intracellular uptake of JMPN@Cu^(2+)by endothelial cells,resulting in the enhanced pro-angiogenic effect of Cu^(2+).Moreover,in vivo experimental findings show that JMPN@Cu^(2+)combined with NIR irradiation can successfully accelerate blood flow recovery and improve muscle *** these results together,this kind of nanomotor can promote angiogenesis along with ischemic micro-environment amelioration,holding great potential applications for the treatment of limb ischemia.

关键词： nanomotors polydopamine near-infrared(NIR)light copper therapeutic angiogenesis

Charge-dependent correlations in heavy-ion collisions from stochastic hydrodynamics

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Communications in Theoretical Physics 2020年第11期72卷 80-86页

作者： gui-Rong liang Miao Li School of Physics and Astronomy Sun Yat-Sen UniversityZhuhai519082China Department of Physics Southern University of Science and TechnologyShenzhen 518055GuangdongChina

Charge-dependent correlations from both background and charge separation contribute to experimental observables in heavy-ion *** this paper,we use stochastic hydrodynamics to study background charge asymmetry due to *** the rapidity-dependent correlation and a simple ansatz for particle distributions,we find a fluctuation-induced correlation to provide a type of background *** data for Au+Au collisions at(sNN)1/2=200 GeV are *** also make predictions for F-correlations in isobar *** this with our previous chiral magnetic effect results,we obtainδ-correlations for collisions in the three types of *** from our model show an almost identical background with less than 2%difference for isobars,but roughly 10%difference for their charge *** combination with our earlier works,we provide a consistent method of calculating both the chiral magnetic effect and the charged background in the context of stochastic hydrodynamics.

关键词： stochastic hydrodynamics heavy-ion collisions background charge fluctuations isobar collisions charge-dependent correlations

Synthesis of (S)-N-(2-Ethyl-6-methylphenyl) alanine by Enzyme-catalyzed Resolution and Chemical Racemization

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Chemical Research in Chinese Universities 2009年第6期25卷 836-840页

作者： ZHENG liang-yu ZHANG Suo-qin LU xiao-li CAO Shu-gui Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education College of Chemistry Stomatological Hospital Jilin University Changchun 130021 P. R. China

A practical synthesis of （S）-N-（2-ethyl-6-methylphenyl）alanine, a key intermediate for （S）-metolachlor, was completed by means of lipase-catalyzed hydrolytic kinetic resolution and chemical racemization of the remaining ester. The effects of operating temperature and enzyme concentration on the activity and enantioselectivity of enzyme were initially studied, and it was found that the enantioselectivity of CAL-B towards the resolution was not high enough to obtain enantiomerically pure compound（E=12.1）. When diethyl ether（15%, volume fraction） was added in the reaction medium, the lipase gave an excellent enantioselectivity（E=117.8）, which is about 9.7-fold that in pure buffered aqueous solution. For overcoming the limitation of a maximum theoretical yield of 50%, the acid product was separated from the remaining ester by a simple extraction procedure and the remaining ester was racemized with aldehyde and acetic acid under microwave irradiation or conventional heating condition, The results show the microwave irradiation was more effective than the conventional heating method and gave the desired （R,S）-N-（2- ethyl-6-methylphenyl）alanine methyl ester a high yield（92%） with R/S=50/50 in 1 h.

关键词： Candida antarctica lipase B Resolution (S)-N-(2-Ethyl-6-methylphenyl)alanine Racemization

Formula of Overtopping Discharge of Vertical Seawall with A Form Similar to Solitary Wave Function

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China Ocean Engineering 2022年第5期36卷 802-807页

作者： LI xiao-liang School of Naval Architecture&Ocean Engineering Jiangsu University of Science and TechnologyZhenjiang 212003China

An empirical formula to predict overtopping discharge of vertical wall is presented,in which an expression similar to the solitary wave function is proposed to describe the rule of the influence of relative water *** formula is derived from performing an investigation to the well-known overtopping graphs of Goda,and for the sake of interest,the process of the derivation is *** make clear the formula’s performance,relevant test datasets in the CLASH database are extracted to examine the error levels of the *** a result,an overall good agreement has been found between the predictions of the formula and the extracted datasets in a wide range outside the extreme shallow region,i.e.,the range of relative water depth smaller than 0.6,in which the water depth near the wall is so shallow that nearly all the incoming waves have been broken before reaching the wall.

关键词： overtopping discharge formula vertical wall Goda graph