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Chinese Journal of Structural Chemistry 2010年第9期29卷 1321-1326页

作者：张云张士真李建定党娟陶偌偈 Institute of Molecular & Crystal Engineering Chemistry and Chemical Engineering CollegeHenan University Shangqiu Technician College

One new coordination polymer with the chemical formula [CoCu2L2·K2·1.5C2H5OH]n（H4L = 2-hydroxy-3-[（E）-（{3-[（2-hydroxybenzoyl）amino]propyl}imino）methyl] benzoic acid） has been synthesized based on the slow diffusion method,and characterized by IR spectroscopy,thermalgravimetric and X-ray diffraction analysis.It crystallizes in the monoclinic system,space group P21/n with a = 11.98860（10）,b = 24.4279（3）,c = 14.9008（2） ,β = 104.7490（10）°,V = 4220.01（8） 3,Z = 2,Mr = 1009.94,Dc = 1.590 g/cm3,F（000） = 2056,μ（MoKα） = 1.649 mm-1,the final R = 0.0411 and wR = 0.1178 for 5920 observed reflections with I 2σ（I）.The compound possesses a 2D brick wall structure constructed from trinuclear units.

关键词： coordination polymer crystal structure brick wall thermal property

A New Cooperative Distributed MPC Method Based on Reduction and Classification

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Chinese Journal of Electronics 2017年第3期26卷 564-572页

作者： WU Lan WANG Lei college of Electrical Engineering Henan University of Technology Department of Electrical Engineering Hangzhou First Technician College

To decrease the overlarge calculation induced by the centralized processing,a new cooperative distributed Model predictive control(MPC)method is proposed for large-scale systems with coupled dynamics.Reduction and classification are investigated by defining the influence degree to reduce the whole system and then to classify the reduced system into several subsystem groups.These groups are mutually decoupled,while there is relativity between these subsystems comprised in the same group.Centralized/cooperative and distributed MPC algorithms for each group are implemented to ensure the feasibility and the stability of the whole system.Meanwhile,for practical applications,the finite times interactive control strategy between different groups is adopted to compensate information loss brought by the reduced subsystem and realize the global cooperative distributed MPC.This algorithm significantly decreases the computational load,has better control performance.Simulations are given to illustrate the effectiveness of these developed algorithms.

关键词： Large-scale complex system Reduction and classification Influence degree Cooperative distributed Model predictive control(MPC)

Influence of Ionization Degrees on the Evolutions of Charged Particles in Atmospheric Plasma at Low Altitude

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Plasma Science and Technology 2012年第8期14卷 716-722页

作者：庞学霞邓泽超贾鹏英梁伟华李霞 college of Physics Science and Technology Hebei University Tangshan Labor technician college

A zero-dimensional model which includes 56 species of reactants and 427 reactions is used to study the behavior of charged particles in atmospheric plasmas with different ionization degrees at low altitude （near 0 km）. The constant coefficient nonlinear equations are solved by using the Quasi-steady-state approximation method. The electron lifetimes are obtained for afterglow plasma with different initial values, and the temporal evolutions of the main charged species are presented, which are dominant in reaction processes. The results show that the electron number density decays quickly. The lifetimes of electrons are shortened by about two orders with increasing ionization degree. Electrons then attach to neutral particles and produce negative ions. When the initial electron densities are in the range of 10l~ ~ 1014 cm-3, the negative ions have sufficiently high densities and long lifetimes for air purification, disinfection and sterilization. Electrons, O（2,-）, O（4,-） CO（4,-） and CO（3,-） are the dominant negative species when the initial electron density neo ≤ 1013 cm^（-3）, and only electrons and CO3 are left when neo 〉 1015 cm^（-3）. N（＋,2）, N＋ and O（＋,2） are dominant in the positive charges for any ionization degree. Other positive species, such as 0（＋,4）, N（＋,3）, NO（＋,2）, NO（＋,2）, Ar（＋,2） and H3O＋. H2O, are dominant only for a certain ionization degree and in a certain period.

关键词： ionization degree electron lifetime atmospheric plasma numerical simulation

The Differences between Scarlett in Gone With the Wind And Rebecca in Vanity Fair

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校园英语 2018年第18期 235-236页

作者： Gu Liulu Yangzhou technician college

Gone with the Wind is one of the most popular American novels, which is written by American female writer Margaret Mitchell.When the book was published, its sales broke many records among the publishing circles, and it is famous all over the world.The novel mainly describes the life of Scarlett who is the daughter of Tara’smaster during the American Civil War.The love triangle created between Scarlett, Ashley, and Rhett drives the narrative.Among all the roles, Scarlett, is the most successful one who is a vivid, abundant, complicated feature.Rebecca have different living conditions.While they have the same personailities.

关键词： Cleverness Ambition Rebellion Independence Selfishness and Coldness

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针刺干预运动性疲劳的Meta分析

Journal of Acupuncture and Tuina Science 2022年第3期20卷 236-246页

作者：牛芯蕊杨混李永杰王晓玲汪涛史丽萍洪珏(Translator) Tianjin University of Traditional Chinese Medicine Tianjin 301617China Henan Medical technician college Kaifeng 475000China Wuhan Sports University Wuhan 430079China

目的:系统评价针刺对运动性疲劳的影响.方法:系统检索Scopus、Springer Link、Web of Science、PubMed、Cochrane Library、中国知网(CNKI)、万方学术期刊全文数据库(Wanfang)、重庆维普数据库(CQVIP)、中国生物医学文献数据库(CBM)中... 详细信息

目的:系统评价针刺对运动性疲劳的影响.方法:系统检索Scopus、Springer Link、Web of Science、PubMed、Cochrane Library、中国知网(CNKI)、万方学术期刊全文数据库(Wanfang)、重庆维普数据库(CQVIP)、中国生物医学文献数据库(CBM)中关于针刺治疗运动性疲劳的随机对照试验(RCTs),检索的时间范围是从建库至2020年8月.根据Cochrane手册对纳入文献进行风险偏倚评价,并在数据提取后使用RevMan5.3软件进行统计学分析.结果:共11项RCT纳入Meta分析,总计531例患者.结果显示,与对照组相比,针刺在缓解主观感觉疲劳[SMD=-3.08,95%CI(-4.35,-1.81),P<0.001],增加血红蛋白含量[WMD=3.89,95%CI(1.37,6.42),P=0.003],降低乳酸脱氢酶含量[WMD=-10.63,95%CI(-17.67,-3.59),P=0.003],降低血乳酸含量[SMD=-2.65,95%CI(-4.47,-0.83),P=0.004],降低血清肌酸激酶[SMD=-0.79,95%CI(-1.10,-0.48),P<0.001]和血尿素氮[WMD=-1.47,95%CI(-1.84,-1.11),P<0.001]方面效果更优.结论:基于当前证据,可认为针刺能有效改善运动性疲劳,值得临床推广.

关键词：针刺疗法疲劳肌酸激酶乳酸乳酸脱氢酶随机对照试验 Meta分析系统评价

Microstructure and Mechanical Behavior of FeNiCoCr and FeNiCoCrMn High-Entropy Alloys Fabricated by Powder Metallurgy

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Acta Metallurgica Sinica(English Letters) 2021年第4期34卷 445-454页

作者： Chenliang Chu Weiping Chen Zhen Chen Zhenfei Jiang Hao Wang Zhiqiang Fu Guangdong Key Laboratory for Advanced Metallic Materials Processing South China University of TechnologyGuangzhou 510640China Shantou technician college Shantou 515041China

The present work reports a systematic investigation on phase evolution,microstructure and microstructure-property relationship of two typical face-centered cubic(FCC)structured high-entropy alloys(HEAs),FeNiCoCr and FeNiCoCrMn,prepared via mechanical alloying(MA)followed by spark plasma sintering(SPS).Following 50 h of MA,the two HEAs consisted of a mixture of FCC and body-centered cubic phases.Following SPS,the bulk FeNiCoCr alloy showed a primary FCC phase with a small amount of Cr_(23)C_(6) and Cr_(2)O_(3) contaminants,while the bulk FeNiCoCrMn alloy was composed of a primary FCC phase with some(Cr,Mn)23C6 and MnCr_(2)O_(4) contaminants.The average grain size of the primary FCC phase in the bulk FeNiCoCr alloy was~416 nm,while that of the primary FCC phase in the bulk FeNiCoCrMn alloy was~547 nm.The yield strength,compressive strength and strain-to-failure of the bulk FeNiCoCr alloy are 1525 MPa,1987 MPa and 24.4%,respectively,whereas those of the bulk FeNiCoCrMn alloy are 1329 MPa,1761 MPa and 21.9%,respectively.It suggests that the bulk FeNiCoCrMn exhibited lower strength and plasticity in comparison with the bulk FeNiCoCr alloy.Clearly,the smaller grain size of the primary FCC phase in the FeNiCoCr alloy is mainly responsible for the better mechanical performance.

关键词： High-entropy alloy Mechanical alloying Microstructure Strengthening Contaminants

A Study of Diagnosis METHOD for Turbocharger Abnormal Noise

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A Study of Diagnosis METHOD for Turbocharger Abnormal Noise

Position Control of Induction Motors via Adaptive Fuzzy Backstepping with Input Saturation

2019中国汽车工程学会年会

作者： Qiu Yongjin Wang Fangyu Ren Dong Dongfeng Motor Corporation Technical Center Xiangyang technician college

Basedon the problem of abnormal noise of a turbocharger model in acceleration condition,the study starts from the spectrum characteristics of the abnormal noise.Combined with subjective evaluation and analysis of transmission paths and noise and vibration frequency of various components of engine compartment,this paper elaborates on the excitation characteristics of the turbocharger.According to the generation mechanism of abnormal noise,considering factors such as spatial layout,performance matching and cost constraints,a pneumatic buffer has been set reasonably to eliminate or reduce the influence of turbocharger abnormal noise on riding comfort during acceleration.By integrating principle,analysis and improvement,a set of diagnosis methods for abnormal noise of turbocharger is developed.After being improved and verified,the proposed methods have been applied.

关键词： turbocharger abnormal noise diagnosis method pneumatic buffer acceleration

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Position Control of Induction Motors via Adaptive Fuzzy Back...

Application of Algorithm CARDBK in Document Clustering

2015年中国智能自动化学术会议

作者： Wei Li Yumei Ma Jinfei Yu Jinpeng Yu Jiapeng Liu college of Automation Engineering Qingdao University Zibo technician college

This paper focuses on the problem of position tracking control for field-oriented induction motors with input saturation.In the scheme,an adaptive fuzzy control based on backstepping technique is designed.Fuzzy logic systems are used to approximate the unknown nonlinearities and the adaptive backstepping control is employed to construct controllers.The proposed adaptive fuzzy controllers guarantee the tracking error converge to a small neighborhood of the origin.Compared with the conventional backstepping,the designed fuzzy controllers’ structure is very simple.The simulation results show that the new controller overcomes the influences of the parameter uncertainties and guarantee a tracking performance.

关键词： Induction motor Fuzzy approximation Adaptive control Backstepping Input saturation

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Wuhan University Journal of Natural Sciences 2018年第6期23卷 514-524页

作者： ZHU Yehang ZHANG Mingjie SHI Feng college of Economics and Management Xi'an University of Posts and Telecommunications Xi'an 710121 Shaanxi China Information Business Department Puyang Technician College Puyang 457000 Henan China

In the K-means clustering algorithm, each data point is uniquely placed into one category. The clustering quality is heavily dependent on the initial cluster centroid. Different initializations can yield varied results; local adjustment cannot save the clustering result from poor local optima. If there is an anomaly in a cluster, it will seriously affect the cluster mean value. The K-means clustering algorithm is only suitable for clusters with convex shapes. We therefore propose a novel clustering algorithm CARDBK—＂centroid all rank distance（CARD）＂ which means that all centroids are sorted by distance value from one point and ＂BK＂ are the initials of ＂batch K-means＂—in which one point not only modifies a cluster centroid nearest to this point but also modifies multiple clusters centroids adjacent to this point, and the degree of influence of a point on a cluster centroid depends on the distance value between this point and the other nearer cluster centroids. Experimental results showed that our CARDBK algorithm outperformed other algorithms when tested on a number of different data sets based on the following performance indexes： entropy, purity, F1 value, Rand index and normalized mutual information（NMI）. Our algorithm manifested to be more stable, linearly scalable and faster.

关键词： algorithm design and analysis clustering documentanalysis text processing

APFD:an effective approach to taxi route recommendation with mobile trajectory big data

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Frontiers of Information Technology & Electronic Engineering 2022年第10期23卷 1494-1510页

作者： Wenyong ZHANG Dawen XIA Guoyan CHANG Yang HU Yujia HUO Fujian FENG Yantao LI Huaqing LI college of Data Science and Information Engineering Guizhou Minzu UniversityGuiyang 550025China Department of Automotive Engineering Guizhou Traffic Technician and Transportation CollegeGuiyang 550008China college of Computer Science Chongqing UniversityChongqing 400044China college of Electronic and Information Engineering Southwest UniversityChongqing 400715China The Affiliated Hospital of Guizhou Medical University Guiyang 550001China

With the rapid development of data-driven intelligent transportation systems,an efficient route recommendation method for taxis has become a hot topic in smart cities.We present an effective taxi route recommendation approach(called APFD)based on the artificial potential field(APF)method and Dijkstra method with mobile trajectory big data.Specifically,to improve the efficiency of route recommendation,we propose a region extraction method that searches for a region including the optimal route through the origin and destination coordinates.Then,based on the APF method,we put forward an effective approach for removing redundant nodes.Finally,we employ the Dijkstra method to determine the optimal route recommendation.In particular,the APFD approach is applied to a simulation map and the real-world road network on the Fourth Ring Road in Beijing.On the map,we randomly select 20 pairs of origin and destination coordinates and use APFD with the ant colony(AC)algorithm,greedy algorithm(A*),APF,rapid-exploration random tree(RRT),non-dominated sorting genetic algorithm-II(NSGA-II),particle swarm optimization(PSO),and Dijkstra for the shortest route recommendation.Compared with AC,A*,APF,RRT,NSGA-II,and PSO,concerning shortest route planning,APFD improves route planning capability by 1.45%–39.56%,4.64%–54.75%,8.59%–37.25%,5.06%–45.34%,0.94%–20.40%,and 2.43%–38.31%,respectively.Compared with Dijkstra,the performance of APFD is improved by 1.03–27.75 times in terms of the execution efficiency.In addition,in the real-world road network,on the Fourth Ring Road in Beijing,the ability of APFD to recommend the shortest route is better than those of AC,A*,APF,RRT,NSGA-II,and PSO,and the execution efficiency of APFD is higher than that of the Dijkstra method.

关键词： Big data analytics Region extraction Artificial potential field Dijkstra Route recommendation GPS trajectories of taxis