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Beginner 7

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Beginner Chinese Teacher’s Private ClassLesson 7Lead in The Vocabularyexchange program arrive in / at first name last name pleasure on business be jammed trunkfeel lonely married the only child twin spell mean pronounce meet look forward to understand worry export manager salesman marketing manager interesting turnoverNew York Miami JFK International AirportActivity 1 Student Exchange Program•Do you speak other languages? How did you learn to speak？•What would you like to learn in a foreign country? Where to?•Have you heard about a student exchange program or an exchange student?•What do you think you will learn there?•What can be the most difficulty when studying abroad?补充资料A student exchange program is a program in which a student, typically in secondary or higher education, chooses to live in a foreign country to learn, among other things, language and culture. These programs are called 'exchanges' because originally the goal was an exchange of students between different countries helping to increase the participants' understanding and tolerance of other cultures, as well as improving their language skills and broadening their social horizons.. Students live with a host family, who are usually unpaid volunteers and can be a traditional family, a single parent, or a couple with no children at home. Host families are vetted by the organization coordinating the program. In the United States, the Department of State requires that each person 18 or older in a host family receive a criminal background check.An exchange student typically stays in the host country for a relatively short period of time, often 6 to 10 months, in contrast to international students or those on study abroad programs which can last for several years. Some students on exchange programs can receive academic credits from the country they study in.Keywords:A student exchange program —交换生计划A secondary school —义务教育体制下的中学Language and Culture —语言和文化Participant —参与者Understanding and Tolerance —理解和包容Language skill —语言能力Social horizon —社交视野A host family —住宿家庭An unpaid volunteer —免费志愿者A traditional family —传统家庭A single parent —单亲家庭A couple —一对夫妻Vet —①兽医②审查Coordinating organization —协调机构The Department of State —国务院A criminal background check —犯罪记录调查An International student —国际留学生Academic credit —学分Activity 3 What’s going on?A. The use of present continuous1. She wears earrings. (today)She is wearing earrings today.2. The plane flies to America. (at this time)3. I have a good time on the beach. (at the moment)4. A train arrives at the subway station. (right now)5. The secretary works on papers in her office. (at present)6. The lady hurries to the post office. (now)7. The students walk and talk on the campus (校园) .8. We plan the work for next week. (just now)B. Questions about present continuous1. I'm driving a car. [WHAT]2. They are having a party. [YES/NO]3. People are still waiting because the bus is late. [WHY]4. She's busy going to work. [WHERE]5. It’s being really hot during summer time. [HOW]6. We are travelling by ship. [HOW]7. Some vegetables are being cooked for supper. [WHAT]8. We are giving her flowers as her birthday gift. [WHY]Activity 4 Coming to a new place☐ Give information of your hometown 1. Where is your hometown?2. Where is your hometown located (位于......)?3. What kind of landscape (地貌) around your hometown?4. What is the main crop (主要作物) in your hometown?5. What is the climate (气候) in your hometown?6. What are the landmarks (地标建筑) in your hometown?7. What are some of well-known places (著名景点) in your hometown? 8. What Is your dialect (方言)? Is it different from Mandarin (普通话)? 9. What is people’s favorite food in your hometown? 10. Do you love your hometown? Why or why not?.☐Role playExample dialogues:Helen: Excuse me! Are you a new comer here? Tim: Yes, I am.Helen: May I know your name, sir? Tim: Tim Stonham. And you are?Helen: Helen Clare, nice to meet you, Tim. Tim: Glad to meet you too, Helen!Helen: Wow! You speak English very well, Tim! Tim: Oh, thanks a lot! I am flattered （夸奖，奉承）! Helen: So, are you a native speaker? Tim: Not exactly! I am from Germany originally （最初地，原本地）,but I have lived in the U.S.A. for many years.Helen: Really? I am not so familiar with （对......熟悉）Germany. Could you tell me something about it? Tim: No problem! I t’s right in central Europe （中欧）, bordered to （与……相邻）France (法国), Belgium (比利时),Switzerland (瑞士), etc. I am from Hamburg (汉堡). Helen: Wow! That must be a great place. Hope I could visit it someday! Tim: Oh, really? If you are there, I’ll be glad to show you around there. Helen: It’s very kind of you! I hope you will enjoy your stay here. Tim: Thanks, you bet I will.Activity CardActivity Card Exchange Student A – Chinese Student BCustomer A – Manager BAn American exchange student has just arrived in China recently. Raise questions about the life or places of interest here in your city. You are receiving a customer in the office. Greet each other and raise questions to find more information about each other.。

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NX Open Beginner Guide PLM World 2011

NX Open Beginner Guide PLM World 2011


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Creating a New Project
2) Give Name
4) Next
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Specify NX Library References
5) Libraries Tab
6) External JARs
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Specify NX Library References
3) Do Something! 1) Record 4) Stop
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Copy/Paste From Journal & Edit
1) Add code to say hello
UFSession ufs; ufs = (UFSession)SessionFactory.get("UFSession"); ufs.ui().openListingWindow(); ufs.ui().writeListingWindow("Hello PLM World!");
Copy/Paste into DFA file & Edit
1) Change Class name
2) Add line
3) Edit lines to force eval
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“Compile” KF Code
2) Reload All
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2) Change Class Name
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Compile & Build
1) Save All
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Execute from NX
3) Project bin folder 4) Choose file
1) NX Open…
Improving the Beginner’s PID

Improving the Beginner’s PID

Improving the Beginner’s PID – IntroductionIn conjunction with the release of the new Arduino PID Library I’ve decided to release this series of posts. The last library, while solid, didn’t really come with any code explanation. This time around the plan is to explain in great detail why the code is the way it is. I’m hoping this will be of use to two groups of people: ∙People directly interested in what’s going on inside the Arduino PID libra ry will get a detailed explanation.∙ Anyone writing their own PID algorithm can take a look at how I did thingsand borrow whatever they like.It’s going to be a tough slog, but I think I found a not -too-painful way to explain my code. I’m going to start with what I call “The Beginner’s PID.” I’ll then improve it step-by-step until we’re left with an efficient, robust pid algorithm.The Beginner’s PIDHere’s the PID equation as everyone first learns it:AD 采样之后（离散化），积分变成求和，微分变成差分，如下式)]1()([)()()(0--++=∑=k e k e T T k i e T T k k e k k output sd pki is ppTs —采样周期 Ti —积分时间 Td —微分时间This leads pretty much everyone to write the following PID controller: 1 2 3 4 5/*working variables*/ unsigned long lastTime;double Input, Output, Setpoint; double errSum, lastErr; double kp, ki, kd;6 7 8 9101112131415161718192021222324252627282930 void Compute(){/*How long since we last calculated*/unsigned long now = millis();double timeChange = (double)(now - lastTime); /*Compute all the working error variables*/double error = Setpoint - Input;errSum += (error * timeChange);double dErr = (error - lastErr) / timeChange;/*Compute PID Output*/Output = kp * error + ki * errSum + kd * dErr;/*Remember some variables for next time*/lastErr = error;lastTime = now;}void SetTunings(double Kp, double Ki, double Kd) {kp = Kp;ki = Ki;kd = Kd;}Compute() is called either regularly or irregularly（要么定期或不定期）, and it works pretty well. This series isn’t about “works pretty well” though. If we’re going to turn this code into something on par with（与谁同一水平）industrial PID controllers, we’ll have to address a few things:1.Sample Time （采样周期）- The PID algorithm functions best if it is evaluatedat a regular interval. If the algorithm is aware of this interval, we can alsosimplify some of the internal math.2.Derivative Kick（微分的超调）- Not the biggest deal, but easy to get rid of,so we’r e going to do just that.3.On-The-Fly Tuning Changes - A good PID algorithm is one where tuningparameters（调试参数）can be changed without jolting the internalworkings（影响内部的计算过程）.4.Reset Windup Mitigation（缓解积分饱和）-We’ll go into what Re setWindup （积分饱和）is, and implement（完成）a solution with side benefits 。

再生龙使用

再生龙使用

再生龙使用再生龙官网1.0 再生龙简介再生龙是台湾国网中心开发的一个系统克隆工具，自由软件，中文名称“再生龙”，具有如下特点：1. 支持多种操作系统和文件系统，包含Linux (ext2, ext3, ext4,reiserfs, reiser4, xfs, jfs，btrfs), Mac OS (HFS ), 微软Windows (fat, ntfs), FreeBSD, NetBSD, OpenBSD (UFS)，以及VMware ESX (VMFS)。

2. 只备份硬盘中的有用数据，有效节省备份时间和硬盘空间，其他不支持的文件系統采用全部复制的方式处理。

3. 支持硬盘和分区备份和还原，还支持硬盘到硬盘的拷贝。

4. 目的硬盘或分区必须大于或等于原来的硬盘或分区大小。

5. 支持通过SSH、Samba或NFS进行备份和还原。

6. 再生龙备份出来的镜像是以文件夹的形式存在。

2.0 制作再生龙Clonezilla liveClonezilla live有两种档案格式可以使用，iso与zip。

前者用于刻录CD，后者给U盘或者移动硬盘使用，下面介绍在windowsXP系统下U盘版Clonezillalive的制作。

1. 下载Clonezillalive的zip包。

2. 将U盘格式化为FAT16或FAT32。

3. 将clonezilla-live-1.2.6-45-i686.zip解压缩到U盘，必须保持解压后的原目录结构，例如COPYING这个文件要在U盘目录的最上层。

4. 进入U盘中的utils\win32目录，双击执行Makeboot.bat，然后在打开的命令行界面中按照提示执行。

5. 从U盘启动即可进入Clonezilla live系统。

6. 目前所用的再生龙版本为Conezillalive version:1.2.6-45-i686。

3.0 再生龙的基本使用3.1 整盘备份/恢复1. 在主板上连接好再生龙工具U盘、目的盘（用于备份镜像的母盘或是准备镜像恢复的磁盘）和存储盘（存放镜像或是读取镜像的磁盘），开电从再生龙工具U盘启动。

英文初学入门教程

英文初学入门教程

英文初学入门教程Introduction to English for BeginnersWelcome to the beginner's guide to learning English! In this tutorial, we will introduce you to the basics of the English language and help you get started on your journey to becoming fluent in English.1. Alphabet and Pronunciation:- Familiarize yourself with the English alphabet, consisting of 26 letters.- Learn the correct pronunciation of each letter and practice saying them out loud.2. Basic Vocabulary:- Begin by learning commonly used words and phrases, such as greetings, numbers, colors, and everyday objects.- Expand your vocabulary by learning new words through flashcards, online resources, or language learning apps.3. Grammar:- Get familiar with basic grammar rules, such as sentence structure, verb forms, tenses, and pronouns.- Study simple sentence patterns and practice constructingsentences using different grammar structures.4. Conversation Practice:- Engage in conversations with native English speakers or language exchange partners to improve your speaking skills.- Start with simple dialogues and gradually move on to more complex conversations as you gain confidence.5. Listening and Reading Comprehension:- Listen to English podcasts, watch movies or TV shows with English subtitles, and read beginner-level books to improve your listening and reading skills.- T ake note of new vocabulary and try to understand the context of what you are listening to or reading.6. Writing Skills:- Begin by practicing writing simple sentences and gradually progress to writing paragraphs and short essays.- Pay attention to grammar, punctuation, and sentence structure when writing.7. Practice Regularly:- Consistency is key to language learning. Set aside dedicated time each day to practice English.- Use language learning apps, online exercises, or find a study partner to keep your motivation high.Remember, learning a new language takes time and effort. Be patient with yourself and celebrate your progress along the way. With regular practice and dedication, you will gradually build your English skills and become more confident in using the language.Good luck on your English learning journey!。