二维空间坐标的dbscan聚类算法

基于马尔科夫随机场的SAR图像处理，行文流畅，获得过优秀论文，其中的算法简明易懂，所用的理论也是深入浅出。

遗传算法解决5种多旅行商问题（mtsp）的matlab程序分别为以下5中情况：1.从不同起点出发回到起点（固定旅行商数量）2.从不同起点出发回到起点（旅行商数量根据计算可变）3.从同一起点出发回到起点4.从同一起点出发不会到起点5.从同一起点出发回到同一终点（与起点不同）

ansoft Maxwell 3d 向导式的用户界面、精度驱动的自适应剖分技术和强大的后处理器时的Maxwell 3D成为业界最佳的高性能三维电磁设计软件。可以分析涡流、位移电流、集肤效应和邻近效应具有不可忽视作用的系统，得到电机、母线、变压器、线圈等电磁部件的整体特性。功率损耗、线圈损耗、某一频率下的阻抗（R和L）、力、转矩、电感、储能等参数可以自动计算。同时也可以给出整个相位的磁力线、B和H分布图、能量密度、温度分布等图形结果。本文件是软件使用教程.希望能帮助大家·Printing HistorNew editions of this manual include material up dated since theprevious edition. The manual printing date, indicating the manualscurrent edition, changes w hen a ncw edition is printed. Minorcorrections and updates incorporated al reprint do not cause the daleto changeUpdate packages may be issued betw een editions and containadditional and/ or rep lacement pages to be merged into the manualby the user Pages which are rearranged because of changes on aprevious page are not considered to be revised.EditionDateSoftwareRevisionFebruary 1991April 199212December 1993October 19964.1September 19995.06December 20006.0WWW⊥nmTypeface ConventionsComputerCter type is used fon promptsand messages, for field names, and for keyboard entries that must be ty ped in theirentirety exactly as shown. For example, thenstruction"copy filel"means to type the w ordcopy, to type a space. and then to type filelMenu/Command Computer type is also used to display the commands that are needed to perform a specifictask Menu levels are separated by forwardslashes (/) For example, the instructionhoose File/Open"means to choose the Opencommand under the file menuItalicsItalic type is used for emphasis and for thetitles of manuals and other publications. Italictype is also used for key board entries when aname or a variable must be typed in place ofthe words in italics. For example, the instruc-rion“ copy filename” means to type the wordcopy, to type a space, and then to type then amc of a filc. such as filelKeysHelvetica type is used for labeled keys on thecomputer keyboard. For example, the instruc-tion"Press Return?"means to press the key onthe com puter that is lahcled Returnwww.docin.coInstallationBefore you use Maxwell 3D, you must1. Set up your systems graphical windowing systerm2. Install the Maxwell softw are, using the directions in theAnsell PC or UNIX Installation guideIf you have not yet done these steps, refer to the ansoft installetionguides and the documentation that came w ith your computer systemor ask your system administrator for helpsing a Graphical User InterfaceIf you are familiar with the concepts of using a mouse, menus, andother graphical user interface(GUn)tools, skip to Chapter 1“ IntroductionIf you have not used GuI systems before, this section will help youunderstand some of the terminology used in this guide. Since GUIare basically visual, the best way to learn to use them is by practicingon your systemMost gui systcms usc a mouseas a poinTing device, with whichyou can select areas on the screenfor command execution andmoving from one program toanother. Your mouse may have 2www.door 3 buttons; Maxwell 3D ignoresthe middle button on 3-buttondelsAnsoft products donot usc this button. You canprogram mouse buttons to work in non-standard ways, as you mightwant to if you are left-handed. For simplicity, the left-hand hutton(under your forefinger if you are right-handed) is called the leftbutton, and the one on far right is the right mouse button. You willprobably find the terms intuitive once you use these buttons a fewtimesPoint and click; Right clickTo choose an item with the mouse, first move it on your desk until thearrow cursor is on that item; you are now pointing" at the item. Next,ress and release the left bu tton thlled"clicking " Point-andclick is the most common action you will make with your mouseally, click" refers to a lefise button clickYou can sometimes use your right mouse button to access or entercommands. In the 3d Modeler for instance, a right mouse buttonclick causes a short menu of commands to appear at the moustcursor. Generally, right click "refers to a right mouse button clickDouble-ClickOccasionally you may want to sclect all of thc text in a box,orperform a special lask(such as indicating the end of drawing a linewhile you are using Maxwell 3D. You can do this efficiently byquickly clicking twice with your left mouse button -a doubleDragging objects; Click and HoldWhen you are drawing in the 3D Modeler, you can often use yourmouse to enter objects and move around the screen. Frequently, youwill click the mouse button and hold it down until the next part of thecommand is reached (the object is oved, the next point is enteredand so forth). If you click and hold on the edge of a w indow, you canposition, or drag, the window on your screen. You can often dragobjects in Maxwell; experiment to see w hat will moveTool BarsTool bars are shortcut methods for entering commands. There is atool bar in the 3d Modeler and most of the setup modules for severalcommand s. To use a tool bar. click the mouse cursor on the buttonyou want to use. Here is an example of a tool bar囗。圖哦良风≌固函MenusWithin each screen of maxwell 3d are areas w hich list subsets ormenus,of commands. You can access a menu by clicking your mouseon the word or button that indicates the menu. The menu is pulleddown, listing the commands available on that menu. (For examplethc New command is availablc on the File mcnu. Usually, thc mcnuwill remain displayed until you choose a command, or click on thedesktop to exit. If the menu does not remain displayed, click and holdthe mouse button, then release the button to make your choiceFile Edit viewNewopenCloseSavectrl+SSave AsImportExportExitctrl+QAn arrow on the right side of a command indicates that there is asubmenu for that command. An ellipsis (. )indicates that a pop-upwindow appears aftcr choosing this commandWhen you are asked to use a menu command, each level is separatedby a"/". Thus, to zoom in on a drawing, you would choose the viewLoom In menu command To open a new file, you would choose File/There are also pop-up menus, which appear when you righL-click ona maxwell modeler window. choose commands from thcsc menus inthe same way as from menu barsFor more information on using GUIs, refer to"User Interface"in theMaxwell Control Panel,s online help systemOther ReferencesFor detailed information on Maxwell 3d commands refer to theonline documentation for the maxwell 3d field simulatorTo start maxwell 3d, you must first access the maxwell controlPanel. for more detailed inform ation on the maxwell control panelcommands, refer to the Maxwell Control Panels online help systemwww.docin.comTable of Contents1. Introduction1-1General Procedure.1-2The Sample Problem1-4Meshes.....,,,,,,,,面2. Create aAccess the maxwell Control Panel·:.·:·甲,,,,,,,,,,2-2Start the Project managerCreate a Project directoryCreate a New project··,···············,·,,,,,,,,,,2-6Enter notes2-73. Draw the model3-1Open the project3-2Start. the 3D Modeler3-3Side window........................snaps3-6Define the problem region: Coordinates and Units ..,...... 3-7Absolute and relative coordinates3-7Grids3-7Zooming in and out of the view window3-9Create the electromagnet3-10Draw the Coil...,,.,..,3-10Draw thc Circlc........,..,...,,,......,..........3-10Create the Cylinder,,3-11Create the hole for the Core3-12Draw the Core·中··············3-13SavingP3-14Create the magnel翻...3-15Draw the magnet3-15Move the magnet3-15Toggle Off the Background..................3-16Create a termini..........,,,,,..,,,,......,,,..3-17Create the Coil terminal..........,,......,,,.,..3-18Define the Problem Region;..,;;“;##.3-20Define the Problem Region .................. 3-21Shading and rendering . ......................................3-22Exit the 3d modeler3-234 Define The problemAccess the Material Manager4-2Exclude the background·····+···,,,,,,,,,,,,,,.4-2Assign Steel to the CoreAssign Copper to the Coil4-3Assign vacuum to the problem Region.......4.......4-3Assign NdFe35 to the Magnet4-3Access the 3D Boundary/Source Manager45assign a current to the coil.....4-6Define the sourceAssigning the Source lo the Termina.........,..,,,,∴4-64-7Check the Direction of the CurrentExit the 3D Boundary/Source Manager4-85. Generate a Solution5-1Setup executive Parameters······5-2Create a Force Setup for the Magnet.5-3Create a Force Setup for the Coil and Core5-3Create a Force Setup for the entire model·········Exiting the Executive Parameters moduleSpecifying Solution Criteria·非5-5Solver type11翻自。■非非首·····:.··.·Magnetic Field SolveResidualSolve for Field and Parameters+++++++++++++++++++++;,+“++Adaptive analysisContents-2

便于读者对永磁同步电机型式实验项目进行学习，有利于对永磁类电机的技术开发LEPGB/T22669-2008前言本标准参考采用了GB/T1029-2005《三相同步电机试验方法》、GB/T1032—2005《三相异步电动机试验方法》、GB/T13958-2008《无直流励磁绕组同步电动机试验方法》IEC60034-2-1:2007《旋转电机(牵引电机除外)确定损耗和效率的试验方法》和美国标准 IEEE Std112:204《多相感应电动机和发电机试验方法》的相关内容。本标准内容是广泛采用的公认的试验方法适应国际贸易技术交流和经济发展的需要。为满足特殊研究或应用的需要,可按本标准未作规定的附加方法进行试验本标准制定了适用于永磁同步电动机的“B法”测定效率的方法;基准温度采用了IEC6034-21200?的规定;给出了电机性能计算格式等本标准的附录A为规范性附录附录B和附录C为资料性附录。本标准由中国电器工业协会提出本标准由全国旋转电机标准化技术委员会(SAC/TC26)归口。本标准由上海电器科学研究所(集团)有限公可负资起草其他主耍起草单位有:江苏安捷机电技术有限公司、河南特高特电机科技发展有限公司、华北电力大学、广东江门江晟电机有限公司、安徽明腾永磁机电设备有限公司、卧龙电气集团股份有限公司。本标准主要起草人;陈伟华、倪立新、金惟伟、周志民、罗应立、刘华涛、袁福民、鲍周清、朱兴恒温旭、严伟灿、李秀英姚丙雷、张宝强陈亦新本标准为首次发布。EpicGB/T22669-—2008三相永磁同步电动机试验方法范围本标准规定了三相水磁同步电动机的试验方法本标准适用于自起动三相永磁同步电动机,静止变频电源供电的同步电动机试验可参照使用,不适用于有直流励磁绕组的同步电动机。2规范性引用文件下列文件中的条款通过本标准的引用而成为本标准的条款。凡是注日期的引用文件,共随后所有的修改单(不包括勘误的内容)或修订版均不适用于本标准,然而,戴励根据本标准达成协议的各方研究是否可使用这些文件的最新版本。凡是不注日期的引用文件,其最新版本适用于本标准。GB755—2008旋转电机定额和性能(IEC60034-1:2004,IDT)GB/T1029—2005三相同步电机试验方法GB/T10322005三相异步电动机试验方法GB10068—2008轴中心高为56mm及以上电机的机槭振动振动的测量、评定及限值(IEC60034-14:2003,IDT)GB/T10069.1-2006旋转电机噪声测定方法及限值第1部分:旋转电机噪声测定方法ISO1680:1999,MOD)GB/T13958-2008无直流励磁绕组同步电动机试验方法1EC60034-2-1:2007旋转电机(牵引电机除外)确定损耗和效率的标准试验方法3主要符号cosq功率因数电源频率(Hz)I1—定子线电流(A)——空毂线电流(A)Ik—堵转线电流〔A额定电流(A)—直流电机电枢电流(A)K—导体材料在0℃时电阻温度系数的倒数铜K1=235铝K1=225除非另有规定正d——转矩读数修正值(N·m)J——转动惯盘(kg·m2)n—试验时测得的转速(r/min)p一电机的极对数P1-输入功率(W)P2--输出功率(W)Ps--额定(输出)功率(WP铁耗(W)Pt—风摩耗(W)CEPICCB/T22669-2008P—剩余损耗(W)Ps杂散损耗(WPs—空载杂损耗(W)P。—一空载输入功率(W)PK—堵转时的输入功率(WPm—定子绕组在试验温度下P2R损耗(W)Poau空载时在试验温度下定子绕组PR损耗(WPaus—定子绕组在规定温度(0)下IR损耗(WR1——温度为阴1时定子绕组初始端电阻(g)RN-额定负载热试验结束时定子绕组端电阻〔)R:—试验温度下测得(或求得)的定子绕组端电阻()Rs—换算到规定温度()时的定子绕组端电阻(Q)R—-空载试验(锵个电压点)定子绕组端电阻(a)Ta—转矩读数(N·m)T如-—空载(与测力机连接)转矩读数(N·m)T—修正过的转矩(N·m)TK堵转时转矩(N·mT-—在试验电压L,下测得的失步转矩(N·m)TN一一额定电压时的失步转矩(N·m)T—最小转矩(N·mT—在试捡电压U下测得的牵入转矩(N·mTN-一额定电压下的标称牵人转矩N·m)T—异步转矩(N·m)Tx-永磁制动转矩(N·m)U—端电压(v)U。—空载试验端电压(V)Ux堵转试验端电压()Ux—额定电压(v)01—测量初始(玲)电阻R1时的绕组温度℃)a-一额定负载热试验期间测取的定子绕组最高温度℃4-试验时测得的定子绕组最高温度〔℃O.一热试验结束时冷却介质温度(℃日--负载试验时冷却介质温度(℃)标准规定的基准温度(℃0-计算效率时规定的定子绕组温度(℃—空载试验时定子绕组温度(℃)△61--定子绕组温升(K—效率(%)4试验要求4.1试验电游4.1.1电压4.1.1.1电压波形试验电源的谐波电压因数(HVF)应不超过0,02;在进行热试验时应不超过0.015CEpiCCB/T22669-20084.1.1.2电压系统的对称性三相电压系统的负序分量和零序分量均应不超过正序分量的1.0%在进行热试验时,电压系统的负序分量应不超过正序分量的0.5%零序分量的影响应予以排除。4.1.2频率4.1.2.1频率偏差试验期间,电源频率与规定频率之差应在规定频率的士0.3%范围内。1.22频率的稳定性试验期间不允许频率发生快速变化,因为频率快速变化不仅影响被试电机,也会影响到输出测量装置。测量期间频率变化量应小于0.1%42测量仪器4.2.1概述因为大多数仪器的准确度等级通常以满量程的百分数表示。因此,应尽量按实际读数的需要,选择低量程仪表。影响仪器测量结果准确度的因素a)信号源负载;b)引接线校正c)仪器的量程、使用条件和校准。4.2.2电量测量仪器通常,电量测量仪器的准确度应不低于0.5级(满量程,兆欧表除外)。用B法(见10,2,2)测定电机效率时,为保持试验结果的准确性和重复性,要求仪器的准确度等级不低于0.2级(满量程)般来说,电子仪器是多用途的,与无源仪器(非电子式)相比,有非當大的翰入阻抗,无需因仪器自身损耗而修正读数。但高输入阻抗仪器对干扰更为敏感。应依实践经验,采取减少于扰的措施。测盘用仪用互感器的准确度等级应不低于0.2级(满量程)4.2.3转矩测量仪一般试验用转矩测量仪(含测功机和传感器)的准确度等级应不低于0.5级。采用B法(见10.2.2测定效率时,转矩测量仪的准确度等级应不低于0.2级(满量程)4.2.4转速与频率测量仪转速表读数误差在土lr/min以内。频率表的准确度等级应不低于0.1级(满量程)4.2.5电阻测量仪绕组的直流电阻用双臂电桥或单臂电桥,或数字式微欧计测量准确度应不低于0.2级。4.2.6温度测量仪温度测量仪的最大允许误差为士1℃4.3测量要求4.3,1电压测量测量端电压的信号线应接到电机端子,如现场不允许这样连接,应计算由此引起的误差并对读数作校正。取三相电压的算术平均值计算电机性能三相电压的对称性应符合4.1.1.2的要求4.3.2电流测量应同时测量电动机的每相线电流,用三相线电流的算术平均值计算电动机的性能。使用电流互感器时接入二次回路仪器的总阻抗(包括连接导线)应不超过其额定阻抗值对I

本系统是在linux系统环境下通过C语言利用文件系统进行开发的银行模拟系统；系统分为三个模块：服务器端、客户端、业务员端；采用了socket网络编程技术、多线程技术、信号量、文件系统、tcp/ip等主流技术。

人脸年龄检测的matlab例子。在人脸图像的基础上，利用pca，svm等机器学习的方法预测出人脸的大致年龄段。年龄段分为0-19岁，20-39岁，40-59岁，60岁以上。实验数据是FG-NET Aging Database。本例子在Image文件夹中存有77人不同改年龄的人脸原始图像，共935张；在Points文件夹中是这些人脸原始图像对应的用于表示人脸特征的形状特征标定点，每张68个标定点。例子很完整，注释详细。

OPC:Error connecting to opc 2.0 server browser 没有注册类别 问题解决

network science Albert-László Barabási new book

利用matlab制作的手写数字识别系统、代码可读性强，结构清晰、GUI运行界面、在Matlab R2014b下编辑完成，有手写版，也可导入图片识别。

UML课程网上书店用例图 。。。。。。。。。。。。。。。。。。。。。。。。。。。