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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 {2. science and technology, jilin University, changchun 130012. china 2. college of Resources and Civil Engineering, Northeastern University, Shenyang 110004, china college of {1. {2. and technology Jilin University Changchun 130012 China 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

Study of OCDs Reliability Estimation System Based on Bio-Immunology

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Journal of Bionic Engineering 2009年第3期6卷 306-310页

作者： Dan-e Wu~1.Qiu-zhan Zhou~1.Ping-ping Liu~2.{2.-bin Zhang1.{1. of Communication Engineering,jilin University,Changehun 1.002.,P.R.china2.Department of computer science and technology,jilin University,{12. 130012.P.R.china college of Communication Engineering Jilin University Changchun P. R. China Department of computer {1. and {2. Jilin University Changchun P. R. China

We introduce the relationship between excess noise in Optoelectronic Coupled Devices (OCDs) and their interior defects and explain how low-fiequency noise can be used to estimate their *** concepts from the biological immune system and its process of identifying invaders,we present a system for estimation of the reliability of *** system has expressions for the antigen (excess noise),lymphocyte (criterion) and the role of the lymphocyte eliminating unreliable devices. A genetic algorithm was used to estimate the components parameters of the noise spectrum for estimating the reliability of *** experimental results demonstrated that this method is reliable,adaptable and practical.

关键词： low-frequency noise artificial immunity genetic algonthm device reliability

An improved method of support vector machine and its applications to financial time series forecasting

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Progress in Natural science:Materials International 2003年第9期 58-62页

作者： LIANG Yanchun and sun Yanfeng (1. {1. of computer science and technology, jilin University, changchun 130012. china 2. {1. of Mathematics, jilin Univer sity, changchun 130012. china)

A novel method for kernel function of support vector machine is presented based on the information geometry *** kernel function is modified using a conformal mapping to make the kernel data-dependent so as to increase the ability of predicting highnoise data of the method. Numerical simulations demonstrate the effectiveness of the method. Simulated results on the prediction of thestock price show that the improved approach possesses better forecasting precision and ability of generalization than the conventional mod-els.

关键词： support vector machine (SVM) data-dependent information geometry con formal mapping financial time series stock price prediction.

Building Fe atom–cluster composite sites using a site occupation strategy to boost electrochemical oxygen reduction

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Carbon Energy 2024年第3期6卷 276-286页

作者： Tingyi Zhou Yi Guan Changjie he Lei Zhang Xueliang {1. Zhongxin Song Qianling Zhang Chuanxin he Xiantao Jiang Zhaoyan Luo Wei Xing Xiangzhong Ren college of C{1.mistry and Environmental Engineering Shenzhen UniversityShenzhenGuangdongChina Department of Mechanical and Materials Engineering University of Western OntarioLondonOntarioCanada State Key Laboratory of Electroanalytical Chemistry Jilin Province Key Laboratory of Low Carbon Chemical PowerChangchun Institute of Applied ChemistryChinese Academy of SciencesJilinChangchunChina

The high-temperature pyrolysis process for preparing M–N–C single-atom catalyst usually results in high heterogeneity in product structure concurrently contains multiscale metal phases from single atoms(SAs),atomic clusters to ***,understanding the interactions among these components,especially the synergistic effects between single atomic sites and cluster sites,is crucial for improving the oxygen reduction reaction(ORR)activity of M–N–C ***,herein,we constructed a model catalyst composed of both atomically dispersed FeN4 SA sites and adjacent Fe clusters through a site occupation *** found that the Fe clusters can optimize the adsorption strength of oxygen reduction intermediates on FeN4 SA sites by introducing electron-withdrawing–OH ligands and decreasing the d-band center of the Fe *** as-developed catalyst exhibits encouraging ORR activity with halfwave potentials(E1.2.of 0.831.and 0.905 V in acidic and alkaline media,***,the catalyst also represents excellent durability exceeding that of Fe–N–C SA *** practical application of Fe(Cd)–CNx catalyst is further validated by its superior activity and stability in a metalair battery *** work exhibits the great potential of synergistic effects between multiphase metal species for improvements of singleatom site catalysts.

关键词： d-band center metal clusters oxygen reduction reaction single-atom catalyst site occupations strategy

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面向对象代数Petri网

吉林大学学报（工学版） 2006年第3期36卷 382-386页

作者：潘洪军孙吉贵吉林大学计算机科学与技术学院

在软件方法学领域已有研究成果的基础上,提出了面向对象代数的Petri模型。该模型支持面向对象的概念,支持面向对象软件系统分析和建模,把代数理论、Petri理论以及面向对象方法和技术结合在一起,为形式化和智能化软件工程环境的建立提供... 详细信息

在软件方法学领域已有研究成果的基础上,提出了面向对象代数的Petri模型。该模型支持面向对象的概念,支持面向对象软件系统分析和建模,把代数理论、Petri理论以及面向对象方法和技术结合在一起,为形式化和智能化软件工程环境的建立提供了一种有效方法,提高了并发系统动态建模和复杂系统的高级建模的能力。

关键词：计算机工程类别代数面向对象 Petri网

Robust Fault Diagnosis of Analog Circuits with Tolerances

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湖南大学学报（自然科学版） 2000年第S2期27卷 133-138页

作者： Ying Deng1. Yigang he1., Xu he2.,Yichuang sun3 1. college of Electrical and Information Engineering,Hunan University, 41.082. Changsha, Hunan, china 2. Department of computer science, Hunan University, 41.082. Changsha, Hunan, china 3. Department of Ele

A method for robust analog fault diagnosis using hybrid neural networks is proposed. The primary focus of the paper is to provide robust diagnosis using a mechanism to deal with the problem of element tolerances and reduce testing time. The proposed approach is based on the fault dictionary diagnosis method and backward propagation neural network (BPNN) and the adaptive resonance theory (ART) neural network. Simulation results show that the method is robust and fast for fault diagnosis of analog circuits with tolerances.

关键词： Analog circuits Fault diagnosis Tolerances Artificial neural networ|

Nanodiamond-Assisted High Performance Lithium and Sodium Ions Co-Storage

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Energy & Environmental Materials 2024年第6期7卷 94-105页

作者： Xiaochen {1. Xuan Gao Chang Su Wei Cheng Nan Gao Xin Zhang Mengmeng Gong Haobo Dong Yuhang Dai Guanjie he Hongdong Li State Key Lab of Superhard Materials College of PhysicsJilin UniversityChangchun130012 China Christopher Ingold Laboratory Department of ChemistryUniversity College London20 Gordon StreetLondonWC1H 0AJ UK Nuffield college University of OxfordNew RoadOxford OX11NFUK

While lithium resources are scarce for high energy-dense lithium-ion batteries(LIBs),sodium-ion batteries(SIBs),serving as an alternative,inherently suffer from low capacity and the high-cost use of non-graphite *** Li-and Na-ions within a single battery system is expected to mitigate the shortcomings of both systems while leveraging their respective *** this study,we developed and assembled a nanodiamonds(NDs)-assisted co-Li/Na-ion battery(ND–LSIB).This innovative battery system comprised a commercial graphite anode,an ND-modified polypropylene(DPP)separator,a hybrid lithium/sodium-based electrolyte,and a *** is theoretically and experimentally demonstrated that the ND/Li co-insertion can serve as an ion-drill opening graphite layers and reconstructing graphite anodes into few-layered graphene with expanding interlayer space,achieving highly efficient Li/Na storage and the theoretical maximum of LiC_(6)for Li storage in *** addition,ND is helpful for creating a LiF-/NaF-rich hybrid solid electrolyte interface with improved ionic mobility,mechanical strength,and ***,ND–LSIBs have higher specific capacities~1.4 times the theoretical value of LIBs and show long-term cycling *** study proposes and realizes the concept of Li/Na co-storage in one ion battery with compatible high-performance,cost-effectiveness,and industrial prospects.

关键词： battery lithium electrolyte

Network-based In-Vehicle Body Bus Control System

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Network-based In-Vehicle Body Bus Control System

2.1. Chinese Control and Decision Conference

作者： he Yu~1.Guihe Qin~(1.2.3),Zhizhong Tian~1.Jinnan Dong~(1.3) 1.college of computer science and technology,jilin University,{12. 130012.china 2.Symbol Computation and Knowledge Engineer of Minstry of Education,{12. 130012.china 3.State Key Laboratory of Automobile Dynamic Simulation,{12. 1.002.,china

＜正＞It is a tremendous requirement that more things will be possible to connect to the Internet and there will be a great advantage that combines the Internet and in-vehicle bus control *** this paper,we propose the design and implementation of a network-based in-vehicle body bus control *** also consider an information specification using in the system,and complete the demonstration vehicle.

关键词： In-Vehicle Bus Controller Area Network Local Interconnect Network In-Vehicle Gateway Network-based Control System

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一种求解二元约束满足问题自适应粒子群算法

计算机工程与应用 2009年第29期45卷 10-13页

作者：付宏杰欧阳丹彤孙吉贵吉林大学计算机科学与技术学院长春130012 吉林大学符号计算与知识工程教育部重点实验室长春130012 吉林工程技术师范学院信息工程学院长春130052

提出了一种求解二元约束满足问题的自适应粒子群算法(SAPSO),其中每个粒子具有两种状态,定义了一个反应粒子活跃程度的变量以决定粒子所属的状态。为了平衡粒子不同进化阶段的开发和探测能力,在SAPSO中引入了随着每个粒子的进化状态和... 详细信息

提出了一种求解二元约束满足问题的自适应粒子群算法(SAPSO),其中每个粒子具有两种状态,定义了一个反应粒子活跃程度的变量以决定粒子所属的状态。为了平衡粒子不同进化阶段的开发和探测能力,在SAPSO中引入了随着每个粒子的进化状态和粒子群的进化状态动态改变的惯性权重。利用自适应的选取方式代替随机选择的盲目搜索方式,使群体在解空间搜索时,能够自适应地去探索新的区域,选择有希望找到更优解的地方搜索。使用随机约束满足问题的实验表明,改进后的算法比原算法(PS-CSP)能以更快的速度收敛到全局解。算法的效率大约提高两倍,平均迭代次数大约为原来的一半。

关键词：粒子群算法二元约束满足问题惯性权重适应度