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Key technology of mine underground mobile positioning based on liDAR and coded sequence pattern

中国有色金属学会会刊：英文版 2011年第S3期21卷 570-576页

作者： WANG Zhi1, 2, WU li-xin1, 2, li Hui-ying3.1. college of Resources and Civil {3., Northeastern university, Shenyang 110004, china 2. Academy of Disaster Reduction and Emergency Management, Ministry of Civil Affairs and Ministry of Education, Beijing Normal university, Beijing 100875, china 3. college of computer science and technology, Jilin university, Changchun 13.012, china [a] college of Resources and Civil engineering Northeastern University Shenyang 110004 China [b] Academy of Disaster Reduction and Emergency Management Ministry of Civil Affairs and Ministry of Education Beijing Normal University Beijing 100875 China [c] college of computer science and {3. Jilin University Changchun 130012 China

Technologies of underground mobile positioning were proposed based on liDAR data and coded sequence pattern landmarks for mine shafts and tunnels environment to meet the needs of fast and accurate positioning and navigation of equipments in the mine underground without satellite navigation signals. A coded sequence pattern was employed for automatic matching of 3. scans. The methods of SIFT feature, Otsu segmentation and fast hough transformation were described for the identification, positioning and interpretation of the coded sequence patterns, respectively. The POSIT model was presented for speeding up computation of the translation and rotation parameters of liDAR point data, so as to achieve automatic 3. mapping of mine shafts and tunnels. The moving positioning experiment was applied to evaluating the accuracy of proposed pose estimation method from liDAR scans and coded sequence pattern landmarks acquired in an indoor environment. The performance was evaluated using ground truth data of the indoor setting so as to measure derivations with six degrees of freedom.

关键词： liDAR coded sequence pattern mobile positioning SLAM algorithm POSIT algorithm

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Electrochemical Characterization of Surface-modified liMn_2O_4 Cathode Materials for li-ion Batteries

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Journal of Wuhan university of technology(Materials science) 2006年第4期21卷 56-59页

作者：禹筱元 college of science South China Agricultural University Guangzhou 510642ChinaSchool of Physics & Engineering Sun Yat-sen University Guangzhou 510275China

To improve the performance, the surface of 12Mn2O4 was coated with very fine MgO , Al2O3.and ZnO by solgel method, respectively. The structure and morphology of the coated materials were investigated by X-ray diffraction （ XRD ）, X-ray photoelectron spectroscopy （ XPS ） and scanning electron microscopy （SEM）. The charge and discharge performance of uncoated and surfnce modified 12Mn2O4 spinel at 25℃ and 55 ℃ were tested, using a voltage window of 3.0-4.3. V and a current deasity of 0. 1 C rate. There is a slight decrease in the initial discharge capacity relative to that of uncoated UMn2 O4, bat the cycle ability of 12 12Mn2O4 coated by metal-oxide has remarkably been improved. The EIS measuremeuts of uncoated and Al2O3.-coated 12Mn2O4 were carried out by a model 273.A potentiostatl galvanistat controUed by a computer using M270 software, and using a freqnency response analyzer （ Zsimpwin ） combined with a potentiostate （ PAR 273.. Coaseqnently, the reason for the improved cycle properties is that the surface modification reduces the dissolution of Mn , which results from the suppression of the electrolyte decomposition, and suppresses the formation of passivation film that acts as an electronic insulating layer. In conclusion, the use of surface modification is an effective way to improve the electrochemical performance of 12Mn2O4 cathode material for lithium batteries.

关键词： lithium-ion batteries surface modification metal-oxide coating: 12Mn2O4 cathode

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Deterministic secure quantum communication without unitary operation based on high-dimensional entanglement swapping

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science china(Information sciences) 2012年第2期55卷 360-367页

作者： liU ZhiHao1,CHEN HanWu1,liU WenJie2,XU Juan1 & li ZhiQiang3.1School of {3. science and engineering,Southeast university,Nanjing 211189,china 2School of {3. and Software,Nanjing university of Information science & technology,Nanjing 210044,china 3.13. of Information engineering,Yangzhou university,Yangzhou 225009,china 1. School of computer science and engineering Southeast University Nanjing 211189 China2. School of Computer and Software Nanjing University of Information Science & Technology Nanjing 210044 China3. College of Information Engineering Yangzhou University Yangzhou 225009 China

By analysis of the basic properties of entanglement swapping of high-dimensional Bell states,a universal and general deterministic secure quantum communication(DSQC)protocol is proposed,in which unitary operation is not *** making use of the results of high-dimensional Bell measurement,the sender and the receiver can encode and decode the message respectively by performing the modular addition and *** mutually complementary bases are constructed;and according to the property of mutual complement,a method for checking security of the high-dimensional quantum channel is put *** common attack strategies are analyzed,and the corresponding error rates are *** the upper bound of the threshold of error rate is deduced.

关键词： deterministic secure quantum communication high-dimensional Bell state entanglement swap-ping high-dimensional Bell measurement

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Up-conversion emissions of Er^(3.)-Yb^(3.) codoped Al_2O_3.nanoparticles by the arc discharge synthesis method

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science china(Physics,Mechanics & Astronomy) 2009年第7期52卷 1043-1046页

作者： DONG Bin1, CAO BaoSheng1, FENG ZhiQing1, WANG XingJun2, li ChengRen3.& HUA RuiNian4 1 School of science, Dalian Nationalities university, Dalian 116600, china 2 School of Electronics engineering and computer science, Peking university, Beijing 100871, china 3.college of Physics and Electronic {13., liaoning Normal university, Dalian 116029, china 4 college of life science, Dalian Nationalities university, Dalian 116600, china 1. School of science Dalian Nationalities University Dalian 116600 China 2. School of Electronics engineering and computer science Peking University Beijing 100871 China 3. college of Physics and Electronic technology Liaoning Normal University Dalian 116029 China 4. college of life science Dalian Nationalities University Dalian 116600 China

The Er3.-Yb3. codoped Al2O3.nanoparticles with an average particle size of about 50 nm have been synthesized by an arc discharge synthesis method. The green and red up-conversion emissions centered at about 526, 547 and 677 nm, corresponding respectively to the 2H11/2→4I15/2, 4S3.2→4I15/2 and 4 F9/2→4I15/2 transitions of Er3., were detected by a 978-nm semiconductor laser diode excitation. The Annealing has evident effect on the up-conversion emissions of the samples: The red up-conversion emission is noticeable before annealing; however, the green up-conversion emission becomes predominant after annealing. The mixture of (Er,Yb)3.l5O12 and α-(Al,Er,Yb)2O3.phases is more favorable for green up-conversion emissions due to an enhancement of the ESA (I) of 4I11/2+a photon→4F7/2 and ET (III) of 2F5/2(Yb3.)+4I11/2(Er3.)→2F7/2(Yb3.)+4F7/2(Er3.) processes. The two-photon absorption up-conversion process is involved in the green and red up-conversion emissions. The results have proved that arc discharge synthesis is a new promising preparation {3. for optical materials.

关键词： up-conversion Er3.-Yb3. codoped Al2O3 arc discharge synthesis

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Modelling Immune System:Principles,Models,Analysis and Perspectives

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Journal of Bionic engineering 2009年第1期6卷 77-85页

作者： Xiang-hua li~1, Zheng-xuan Wang~1, Tian-yang Lu~2, Xiang-jiu Che~11. college of computer {3. and technology, Jilin university, Changchun 13.012, P. R. china2. college of computer {3. and technology, Harbin engineering university, Harbin 150001, P. R. china [a]college of computer science and {3. Jilin University Changchun 130012 P. R. China [b]College of Computer Science and Technology Harbin Engineering University Harbin 150001 P. R. China

The biological immune system is a complex adaptive *** are lots of benefits for building the model of the immune *** biological researchers,they can test some hypotheses about the infection process or simulate the responses of some *** computer researchers,they can build distributed,robust and fault tolerant networks inspired by the functions of the immune *** paper provides a comprehensive survey of the literatures on modelling the immune *** the methodology perspective,the paper compares and analyzes the existing approaches and models,and also demonstrates the focusing research effort on the future immune models in the next few years.

关键词： immune system modelling agent-based simulation complex adaptive system (CAS) HIV

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Terrain classification based on adaptive weights with airborne liDAR data for mining area

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中国有色金属学会会刊：英文版 2011年第S3期21卷 648-653页

作者： li Hui-ying1, WANG Zhi2, SUN Ya-feng1, li Wen-hui1 1. college of {3. science and technology, Jilin university, Changchun 13.012, china 2. college of Resources and Civil engineering, Northeastern university, Shenyang 110004, china [a] college of computer science and {3. Jilin University Changchun 130012 China [b] college of Resources and Civil engineering Northeastern University Shenyang 110004 China

The fast high-efficiency inspection for mining subsidence of mine area is a reliable way for forecasting accident and evaluating losing expense. In order to monitor mining subsidence of exploitation mine efficiently, liDAR data were used and a novel strip division method was brought forward based on separating-treatment theory, which divided the mass of discrete three-dimensional point cloud data into a series of parallel strips and reduced the dimension in each strip. Polynomial fitting algorithm based on the adaptive weights, which located in the range of the strip, was used for classification complex terrain data of mine-area. The results show that liDAR datamation can be greatly reduced. In the mean time, the time spending for calculation is shortened, and computational complexity is simplified. Therefore, high-efficiency terrain classification of liDAR point cloud method can be great beneficial to monitoring environment of mine area.

关键词： mining subsidence airborne liDAR strip division adaptive weights

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Hybrid particle swarm cooperative optimization algorithm and its application to MBC in alumina production

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Progress in Natural science:Materials International 2008年第11期18卷 1423-1428页

作者： Shengli Song~(a,b) li Kong~a Yong Gan~b Rijian Su~(a,b) a Department of Control Scienee and engineering,Huazhong {3. oF science and technology,Wuhan 43.074,china b college of computer and Communication engineering,Zhengzhou {3. of light Industry,Zhengzhou 450002,china Department of Control science and engineering Huazhong University of Science and Technology Wuhan 430074 China college of computer and Communication engineering Zhengzhou University of Light Industry Zhengzhou 450002 China

An effective hybrid particle swarm cooperative optimization(HPSCO)algorithm combining simulated annealing method and sim- plex method is *** main idea is to divide particle swarm into several sub-groups and achieve optimization through coop- erativeness of different sub-groups among the *** proposed algorithm is tested by benchmark functions and applied to material balance computation(MBC)in alumina *** show that HPSCO,with both a better stability and a steady convergence,has faster convergence speed and higher global convergence ability than the single method and the improved particle swarm optimization *** importantly,results demonstrate that HPSCO is more feasible and efficient than other algorithms in MBC.

关键词： PSO Simulated annealing Simplex Cooperative optimization

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Guest Editorial for Special Issue on Human-centered Intelligent Robots:Issues and Challenges

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IEEE/CAA Journal of Automatica Sinica 2017年第4期4卷 599-601页

作者： Zhijun li C.L.Philip Chen Wei He IEEE college of Automation science and engineering South China University of Technology Department of computer and Information science Faculty of Science and Technology University of Macao School of Automation and Electrical engineering University of Science and Technology Beijing

The special issue aims to address a broad spectrum of topics ranging from human-centered intelligent robots acting as a servant,secretary,or companion to intelligent robotic *** special issue publishes original papers of innovative ideas and concepts,new discoveries,and novel applications and business models relevant to the field of human-centered intelligent *** this special issue,modeling,intelligent control,

关键词： In Guest Editorial for Special Issue on Human-centered Intelligent Robots:Issues and Challenges

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Social Network Information Propagation Model Based on Individual Behavior

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china Communications 2017年第7期14卷 78-92页

作者： Lejun Zhang Hongjie li Chunhui Zhao Xiaoying Lei college of Information engineering Yangzhou University college of computer science and {3. Harbin Engineering University

In this paper, we discuss building an information dissemination model based on individual behavior. We analyze the individual behavior related to information dissemination and the factors that affect the sharing behavior of individuals, and we define and quantify these factors. We consider these factors as characteristic attributes and use a Bayesian classifier to classify individuals. Considering the forwarding delay characteristics of information dissemination, we present a random time generation method that simulates the delay of information dissemination. Given time and other constraints, a user might not look at all the information that his/her friends published. Therefore, this paper proposes an algorithm to predict information visibility, i.e., it estimates the probability that an individual will see the information. Based on the classification of individual behavior and combined with our random time generation and information visibility prediction method, we propose an information dissemination model based on individual behavior. The model can be used to predict the scale and speed of information propagation. We use data sets from Sina Weibo to validate and analyze the prediction methods of the individual behavior and information dissemination model based on individual behavior. A previously proposedinformation dissemination model provides the foundation for a subsequent study on the evolution of the network and social network analysis. Predicting the scale and speed of information dissemination can also be used for public opinion monitoring.

关键词： social network information propagation individual behavior propagation delay

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一种基于模糊Petri网的并行推理方法

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系统仿真学报 2007年第A1期19卷 108-109,113页

作者：徐欢李孝忠天津科技大学电子信息与自动化学院天津科技大学计算机科学与信息工程学院天津大学系统工程研究所天津市300072

把模糊Petri网模型转化为矩阵形式,在此基础上提出了一种并行推理算法。算法将推理过程转化为矩阵运算,不但考虑了前提条件的权值、变迁阈值和规则可信度等因素,还进一步将变迁触发条件严格化,有效的避免了一些变迁不必要的重复触发,降... 详细信息

把模糊Petri网模型转化为矩阵形式,在此基础上提出了一种并行推理算法。算法将推理过程转化为矩阵运算,不但考虑了前提条件的权值、变迁阈值和规则可信度等因素,还进一步将变迁触发条件严格化,有效的避免了一些变迁不必要的重复触发,降低了算法复杂度。通过实例说明,此推理算法易于实现并可以提高推理效率,尤其适合较大较复杂的模糊Petri网模型。

关键词：模糊Petri网模糊知识矩阵运算并行推理算法

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