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Fiber Bragg Grating Peak Wavelength Detection Technique Based on Wavelet Analysis

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Fiber Bragg Grating Peak Wavelength Detection Technique Base...

2010 4th International Conference on Intelligent Information Technology Application (IITA2010)

作者： Wu Zhaoxia department of automation Northeastern university at Qinhuangdao Qinhuangdao china Yue Haili Handan Hydraulic engineering department Handan china

A new wavelength detection technology about fiber Bragg grating（FBG） is reported,which is combined with the wavelet *** can be used in waveIength multiplexing techniques,which can increased the degree of antomatic calculationand the *** using this method,the spectrum of light wave is obtained better,thus,the influence of the sidelobe voltage is solved by this method in wave processing,also the calculation speed is *** results of the experiments show that reflective signature is reconstructed preferable,and in addition,the influence on of the real peak detection which is caused by the sidelobe voltage is wiped off.

关键词： fiber Bragg grating wavelet analysis waveIength detection distributed

The Implementation Model of the FRACAS Based-on PDM and Its Fabrication on the Teamcenter Platform

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The Implementation Model of the FRACAS Based-on PDM and Its ...

The 8th International Conference on Reliability,Maintainability and Safety(ICRMS 2009)

作者： Renyi Qinxiaokun department of System Engineering of Engineering Technology Beihang university beijing china Fengqiang Yangke department of System Engineering of Engineering Technology Beihang university beijing china

＜正＞To achieve the integration of failure reporting,analysis and corrective action system（FRACAS）with the main process of product design,an implementation model was proposed based on product data management（PDM）*** model was built on the basis of PDM product objects and process objects, and depicted the product failure data and the closed loop control process in FRACAS with the object-oriented analysis method, such model made it possible to share and support each other between the FRACAS data and the product design *** using the model,we had realized the main function of FRACAS on typical PDM system-Teamcenter Enterprise with its platform and customization function,and had constructed the foundation of the way to build a FRACAS seamlessly integrated with the PDM.

关键词： FRACAS PDM Teamcenter

Model Predictive Control of Operation Efficiency of Belt Conveyor

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Model Predictive Control of Operation Efficiency of Belt Con...

第二十九届中国控制会议

作者： ZHANG Shirong department of automation,Wuhan university,Wuhan 430072,P.R.china

Variable speed control is proposed in literature to improve the operation efficiency of a belt ***,the current implementations mostly focus on lower level control loops without considerations at the system *** paper intends to introduce optimisation approach to improve the operation efficiency of the belt conveyor under various *** open loop optimal control is firstly proposed and followed by a closed-loop model predictive control（MPC）.A typical belt conveyor is taken as a case study where the open loop and closed-loop control strategies are simulated,*** simulation results are presented to show the advantages of the optimisation of operation efficiency of belt ***,the rustiness of the MPC approach under certain disturbance is also convinced by the case study.

关键词： Belt Conveyor Operation Efficiency Optimal Control Model Predictive Control

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分离自杭子梢等3个宿主的根瘤菌的表型分析

微生物学通报 2003年第2期30卷 4-11页

作者：韩素贞陈文新中国农业大学生物学院

对 8 6株分离自杭子梢、决明和菜豆的根瘤菌及 2 0株已知参比菌进行了数值分类和全细胞蛋白SDS -PAGE的表型分析。在数值分类聚类中 ,所有供试菌在 6 8%的相似性水平上分为两群。群I为快生和中慢生根瘤菌 ,群II为慢生根瘤菌。群I在 85 ... 详细信息

对 8 6株分离自杭子梢、决明和菜豆的根瘤菌及 2 0株已知参比菌进行了数值分类和全细胞蛋白SDS -PAGE的表型分析。在数值分类聚类中 ,所有供试菌在 6 8%的相似性水平上分为两群。群I为快生和中慢生根瘤菌 ,群II为慢生根瘤菌。群I在 85 %的相似性水平上又可分为 3个亚群 ,群II在 76 %的相似性水平上分为 3个亚群。蛋白电泳结果表明 ,群I在 6 8%的相似性水平上 ,分为 4个亚群 ,其中亚群 1和亚群 2相当于数值分类中的亚群 1 ,亚群 3和亚群 4与数值分类中的亚群 2和亚群 3相对应 ;群II在 5 9%的相似性水平上分为 3个亚群 ,分别与数值分类中的亚群 3、亚群 1和亚群 2大致对应。这说明两种方法在分类上得到的结果比较接近。正在通过进一步的实验确定两种方法一致的未与已知菌株聚在一起的亚群的分类地位。研究结果还表明。

关键词：根瘤菌表型分析数值分类全细胞蛋白多样性 SDS-PAGE

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古代世界的共和主义

史学集刊 2010年第3期 3-9页

作者：黄洋北京大学历史学系北京100871

古代世界的共和主义首先是一种政体实践,以罗马共和国为典型。发端于希腊的古典政治思想把它归结为混合政体,和君主制以及民主制严格区分开来。因此,它不仅是对君主制的反对,也是对民主制的反对。以此来看,古代共和主义和现代共和主义... 详细信息

古代世界的共和主义首先是一种政体实践,以罗马共和国为典型。发端于希腊的古典政治思想把它归结为混合政体,和君主制以及民主制严格区分开来。因此,它不仅是对君主制的反对,也是对民主制的反对。以此来看,古代共和主义和现代共和主义具有十分不同的意味。

关键词：古希腊古罗马罗马共和国共和主义

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通用OCR开发工具的设计

计算机工程与应用 2002年第21期38卷 133-136页

作者：王浩军赵南元邓钢轶清华大学自动化系北京100084

提出了一个通用OCR开发工具的设想,用于各种文字的OCR软件的开发,它能够在使用者的干预下自动完成识别器的设计,大大减少文字识别软件开发的工作量。系统以决策树作为基本的判别器,并用多个决策树组成多方案识别系统。提出设计树和分类... 详细信息

提出了一个通用OCR开发工具的设想,用于各种文字的OCR软件的开发,它能够在使用者的干预下自动完成识别器的设计,大大减少文字识别软件开发的工作量。系统以决策树作为基本的判别器,并用多个决策树组成多方案识别系统。提出设计树和分类器设计器的概念,分别用于决策树设计过程的控制和决策树节点中的分类器的设计。最后实现一个实验系统,验证了该文的设想和设计方案的可行性。

关键词：通用OCR开发工具设计文字识别决策树设计树自动设计光学文字识别计算机

Influence　Diagnostics　for　the　Cross－Validated　Smoothing　Parameter　in　Kernel　Smoothing

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Systems Science and Systems Engineering 1996年第4期6卷 385-390页

作者： JIANG Jiancheng(department of Probability and Statistics, beijing university, 100871)ZHANG Xibin(School of Management, Tianjin university, 300072)WU Xizhi(department of Mathematics, Nankai university, Tianjin 300071)

In this paper, we present influence analysis that can identify observations: which locally infulence the choice of smoothing parameter by cross-validation method when fitting a kelnel regnssion model. The diagnostic m... 详细信息

关键词： Cross-validation Kernel smoothing Bandwidth Local influence

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污水处理自动控制网络平台的设计与研制

实验技术与管理 2011年第3期 285-288页

作者：张慧妍贾宁北京工商大学计算机与信息学院自动化系

根据培养交叉学科知识储备人才的需要,分析了借助信息化手段建立污水处理与自动控制技术相结合的复合型专业技术网站的重要性。结合应用需求进行了网站中各功能模块的分析与研究,对相关专业知识、技术市场动态及行业专家信息等内容进行... 详细信息

根据培养交叉学科知识储备人才的需要,分析了借助信息化手段建立污水处理与自动控制技术相结合的复合型专业技术网站的重要性。结合应用需求进行了网站中各功能模块的分析与研究,对相关专业知识、技术市场动态及行业专家信息等内容进行了整合,依托网络技术,可有效地提升专业知识的累积速度与传播效率。

关键词：交叉学科污水处理自动控制网站设计

Optimal Scheduling of Belt Conveyor Systems for Energy Efficiency With Application in a Coal-fired Power Plant

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Optimal Scheduling of Belt Conveyor Systems for Energy Effic...

2011 Chinese Control and Decision Conference（CCDC）

作者： Shirong Zhang and Yuling Tang are with automation department,Wuhan university,Wuhan 430072,china.

The energy efficiency of belt conveyor systems can be improved at equipment or operational *** literature,variable speed control is proposed as an effective way to improve operation efficiency of belt ***,the current strategies most focus on lower control loops without considerations at the system *** this paper,an optimal scheduling is proposed to improve the energy efficiency of belt conveyor systems at the operational level,where time-ofuse (TOU) tariff,ramp rate of belt speed and other system constraints are considered.A coal conveying system in a coalfired power plant is taken as a case study,where great savings of both energy cost and energy consumption through the optimal scheduling are achieved.

关键词： Belt conveyor system energy efficiency Optimal scheduling Time-of-use tariff