STM32多串口通信

对于zemax中光栅的模拟方法的种类进行总结

matlab GUI串口调试助手，利用GUIDE 编写界面进行串口调试，附带有调试界面的源代码

PIC单片机仿真实例大全和PIC汇编程序库

不错的汽车动力学教材，是参与汽车底盘电子开发的动力学基础。Reza n. jazarVehicle DynamicsTheory and ApplicationsSpringerReza n. jazarDept of Mechanical EngineeringManhattan collegeRiverdale. NY 10471ISBN:978-0-387-74243-4e-ISBN:978-0-387-74244-1Library of Congress Control Number: 200794219c 2008 Springer Science+ Business Media, LLCAll rights reserved. This work may not be translated or copied in whole or in part without thewritten permission of the publisher(Springer Science+Business Media, LLC, 233 SpringStreet, New York, NY 10013, USA), except for brief excerpts in connection with reviews orscholarly analysis. Use in connection with any form of information storage and retrievalelectronic adaptation, computer software, or by similar or dissimilar methodology now knownor hereafter developed is forbidden. The use in this publication of trade names, trademarksservice marks and similar terms, even if they are not identified as such, is not to be taken as anexpression of opinion as to whether or not they are subject to proprietary rightsPrinted on acid-free paper987654321springer. comKavoshmy daughter, Vazan,and my wife, MojganHappiness is when you win a race against yourselfPrefaceThis text is for engineering students. It introduces the fundamental knowledge used in vehicle dymamics. This knowledge can be utilized to developcomputer programs for analyzing the ride, handling, and optimization ofroad vehiclesVehicle dynamics has been in the engineering curriculum for more thana hundred years. Books on the subject are available, but most of themare written for specialists and are not suitable for a classroom applicationA new student, engineer, or researcher would not know where and howto start learning vehicle dynamics. So, there is a need for a textbook forbeginners. This textbook presents the fundamentals with a perspective onfuture trendsThe study of classical vehicle dynamics has its roots in the work ofgreat scientists of the past four centuries and creative engineers in thepast century who established the methodology of dynamic systems. Thedevelopment of vehicle dynamics has moved toward modeling, analysisand optimization of multi-body dynamics supported by some compliantmembers. Therefore, merging dynamics with optimization theory was anexpected development. The fast-growing capability of accurate positioninsensing, and calculations, along with intelligent computer programming arethe other important developments in vehicle dynamics. So, a textbook helpthe reader to make a computer model of vehicles, which this book doesLevel of the bookThis book has evolved from nearly a decade of research in nonlineardynamic systems and teaching courses in vehicle dynamics. It is addressedprimarily to the last year of undergraduate study and the first year graduatestudent in engineering. Hence, it is an intermediate textbook. It providesboth fundamental and advanced topics. The whole book can be coveredin two successive courses, however, it is possible to jump over some sections and cover the book in one course. Students are required to know thefundamentals of kinematics and dynamics, as well as a basic knowledge ofnumerical methodsThe contents of the book have been kept at a fairly theoretical-practicallevel. Many concepts are deeply explained and their application empha-sized, and most of the related theories and formal proofs have been explained. The book places a strong emphasis on the physical meaning andapplications of the concepts. Topics that have been selected are of highinterest in the field. An attempt has been made to expose students to aPrefacebroad range of topics and approachese There are four special chapters that are indirectly related to vehicle dy-amics: Applied Kinematics, Applied Mechanisms, Applied dynamics, andApplied vibrations. These chapters provide the related background to understand vehicle dynamics and its subsystemsOrganization of the bookThe text is organized so it can be used for teaching or for self-studyChapter 1"Fundamentals, "contains general preliminaries about tire andrim with a brief review of road vehicle classificationsPart I"One Dimensional Vehicle Dynamics, " presents forward vehicledynamics, tire dynamics, and driveline dynamics. Forward dynamics refersto weight transfer, accelerating braking, engine performance, and gear ratiodesignPart II"Vehicle Kinematics, presents a detailed discussion of vehiclemechanical subsystems such as steering and suspensionsPart IIT"Vehicle Dynamics, employs Newton and Lagrange methodsto develop the maneuvering dynamics of vehiclesPart Iv "Vehicle Vibrations, presents a detailed discussion of vehi-cle vibrations. An attempt is made to review the basic approaches anddemonstrate how a vehicle can be modeled as a vibrating multiple degreeof-freedom system. The concepts of the Newton-Euler dynamics and La-grangian method are used equally for derivation of equations of motionThe RMS optimization technique for suspension design of vehicles is intro-duced and applied to vehicle suspensions. The outcome of the optimizationtechnique is the optimal stiffness and damping for a car or suspended equipmentMethod of presentationThis book uses a fact-reason-application"structure. The "fact"is themain subject we introduce in each section. Then the reason is given as a" proof. The application of the fact is examined in some examples. Theexamplesare a very important part of the book because they show howto implement the facts. They also cover some other facts that are neededto expand the subjectPrerequisitesSince the book is written for senior undergraduate and first-year graduatelevel students of engineering, the assumption is that users are familiar withmatrix algebra as well as basic dynamics. Prerequisites are the fundamentals of kinematics, dynamics, vector analysis, and matrix theory. Thesebasics are usually taught in the first three undergraduate yearsPrefaceUnit SystemThe system of units adopted in this book is, unless otherwise stated, theinternational system of units(SI). The units of degree(deg)or radian(rad)are utilized for variables representing angular quantitiesSymbolse Lowercase bold letters indicate a vector. Vectors may be expressed inan n dimensional Euclidian space. ExamplerCUppercase bold letters indicate a dynamic vector or a dynamic matrix, such as force and moment. ExampleFo Lowercase letters with a hat indicate a unit vector. Unit vectors arenot bolded. ExampleLowercase letters with a tilde indicate a 3 x 3 skew symmetric matrixassociated to a vector. Examplea3211An arrow above two uppercase letters indicates the start and endpoints of a position vector. ExampleON = a position vector from point o to point Ne The length of a vector is indicated by a non-bold lowercase letterExampleCapital letter B is utilized to denote a body coordinate frame. ExampleB(ocgB(Oxyz)B1(o1x19121)ⅹ11PrefaceCapital letter G is utilized to denote a global, inertial, or fixed coordinate frame. ExampleG(XYZG(OXYZRight subscript on a transformation matrix indicates the departureframes. ExampleRB= transformation matrix from frame B(oxyz)Left superscript on a transformation matrix indicates the destinationframe. ExampleRBtransformation matrix from frame B(o cgz)to frame G(OxYZ)Capital letter R indicates rotation or a transformation matrix, if itshows the beginning and destination coordinate frames. Example0BSIn a0Whenever there is no sub or superscript, the matrices are shown in abracket. ExampleCOS asin a osIn aCOs O0e Left superscript on a vector denotes the frame in which the vectoris expressed. That superscript indicates the frame that the vectorbelongs to; so the vector is expressed using the unit vectors of thatEr= position vector expressed in frame G(OXYZ)Right subscript on a vector denotes the tip point that the vector isreferred to. ExamplePsition vector ofexpressed in coordinate frame G(OXYZ)Right subscript on an angular velocity vector indicates the frame thatthe angular vector is referred to. ExampleB= angularof the body coordinate frame B(oxyz)

【实例简介】本科毕业论文 基于B/S的ERP人力资源管理子系统的设计与开发 目 录 摘要 III 关键词 III Abstract III Key Words III 前言 1 1 相关介绍 1 1.1框架介绍 1 1.2 Struts框架介绍 2 1.3 Hibernate框架介绍 2 1.4 Spring框架介绍 3 1.5开发工具及环境介绍 3 1.5.1 MyEclipse介绍 3 1.5.2 Tomcat介绍 4 1.6 Oracle数据库介绍 4 2 系统架构设计 5 2.1 Struts构建表示层 5 2.2 Spring构建业务逻辑层 5 2.3 Hibernate构建持久化层 5 2.4 系统架构设计 6 3 需求分析与总体设计 8 3.1 系统概述 8 3.2 需求分析 8 3.3 系统的功能结构 9 3.3.1 部门管理模块 9 3.3.2 员工管理模块 9 3.3.3 考勤管理模块 9 3.3.4 招聘管理模块 9 3.3.5 培训管理模块 9 3.3.6 绩效考评模块 9 3.3.7 合同管理模块 9 3.3.8 薪酬福利模块 9 3.3.9 辅助决策模块 10 3.3.10 系统管理模块 10 3.4 系统用户权限分类及描述 10 3.4.1 普通用户 10 3.4.2 管理员 10 3.4.3 超级管理员 10 3.5 系统业务流程图 11 3.6 系统主要用例描述 11 3.6.1 系统登录 11 3.6.2 员工管理 11 3.7 数据库设计 13 3.7.1 数据库表及表关系 13 3.7.2 数据表逻辑结构 14 4 系统实现 19 4.1 搭建SSH框架 19 4.2 目录及包介绍 21 4.3 表示层实现 22 4.4 业务逻辑层实现 24 4.5 持久层及域对象层实现 25 4.6 其他实现 26 4.7 主要实现界面 29 4.7.1 登陆界面 29 4.7.2 首页面 29 4.7.3 部门信息列表界面 29 4.7.4 登记考勤界面 31 4.7.5 更新员工信息界面 31 5 系统测试与评价 32 5.1 测试环境 32 5.2 测试结果 32 5.2.1 功能测试 32 5.2.2 安全测试 32 总结 33 参考文献 34 致谢 35 基于B/S的ERP人力资源管理子系统的设计与开发 摘 要 随着社会经济的发展，人们逐渐认识到，人力是一种资源，是社会经济财富创造必须具备的条件。人力资源是企业最重要的资源之一，对于企业来说,人力资源的管理关系到企业的生存与发展。现代企业管理迫切需求设计一个能够适应和满足企业发展规模的人力资源管理信息系统。本文设计并实现了基于Struts，Spring和Hibernate的ERP人力资源管理子系统。该子系统使用Struts实现MVC，Spring负责架构的结合，Hibernate进行数据的持久化，基本实现了部门管理、员工管理、招聘管理、考勤管理、培训管理、绩效考评管理、薪资管理、合同管理、辅助决策、系统管理等模块。论文对系统的设计和实现作出了详细的描述，并对系统进行了功能测试和安全测试。

声学语音处理的python源码 ，包括各种语音滤波处理，gammotan滤波，特征提取等

用Matlab实现的灰度图像转换成RGB图像，效果不错

精雕5.5破解版JDPaint是精雕科技多年来一直致力研制开发的、具有自主版权的、功能强大的专业雕刻CAD/CAM软件。JDPaint是精雕CNC数控雕刻系统正常运作的保证，也是有效提高CNC雕刻系统使用效率和产品质量的源泉。

自己编写的matlab自适应干扰对消程序，通过互相关找匹配相位，再找对消系数

二进制转换十进制例：  01100100 =100  第0位：0*2^0=0  第1位：0*2^1=0  第2位：1*2^2=4  第3位：0*2^3=0  第4位：0*2^4=0  第5位：1*2^5=32  第6位：1*2^6=64  第7位：0*2^7=0         4 32 64=100八进制转换十进制例：  1507=839  第0位：7*8^0=7  第1位：0*8^1=0  第2位：5*8^2=320  第3位：1*8^3=512         7 320 512=839十六进制转换十进制例：  2AF5=10997  第0位：5*16^0=5  第1位：F*16^1=240  第2位：A*16^2=2560  第3位：2*16^3=8192         5 240 2560 8192=10997十进制转换八进制例：  120=170  120 120/8 15 0  15  15/8  1  7  1   1/8   0  1十进制转换二进制和十进制转换八进制一样只是把除数变成2。十进制转换十六进制例：  120=78  120 120/16 7 8  7   7/16   0 7二进制转换十六进制例:  二进制转换十六进制是以4位一段分别转换为十六进制。  权值：23=8,22=4,21=2,20=1  所以：1111=F 二进制                  十进制               十六进制 1111            8 4 2 1=15                      F 1110            8 4 2 0=14                      E ......1111 1101 , 1010 0101 , 1001 1011  F    D  ,   A    5  ,   9   B原码：    一个整数，按照绝对值大小转换成二进制，成为原码。  例：00000000 00000000 00000000 00000101 是5的原码反码：   将二进制数按位取反，所得的新二进制数称为原二进制数的反码。   取反操作指：1变0；0变1例：    00000000 00000000 00000000 00000101每一位取反，得11111111 11111111 11111111 11111010   称：00000000 00000000 00000000 00000101是11111111 11111111 11111111 11111010的反码补码：     反码加1称为补码    也就是说，要得到一个数的补码，先得到反码，然后将反码加上1，所得数称为补码例：00000000 00000000 00000000 00000101是11111111 11111111 11111111 11111010的反码   那么，补码位：11111111 11111111 11111111 11111010 1=11111111 11111111 11111111 11111011