基于ActionScript3脚本语言的电力拖动模拟软件开发方法

为了提高电力拖动课程学习效率,强化教学效果,减少模拟软件开发周期,针对电力拖动控制电路特点,提出基于ActionScript3的电力拖动模拟软件的开发方法。以模拟三相电机正反转控制电路为例,详细阐述了使用ActionScript3进行软件开发的过程。结果表明,使用ActionScript3开发电力拖动模拟软件,效果逼真、难度小、效率高,为此类模拟软件的开发提供了思路。     

Excel97数据的“快速输入”

一、用鼠标拖动的方法,在连续单元格中快速输入数据１．“拖动填充”法在连续的单元格中快速输入若干个相同数据。第一步,首先在第一个单元格中输入一个数据。第二步,移动鼠标将光标移到该单元格右下角（填充柄）处。第三步,等光标变为“＋”时,按下鼠标左键进行拖动,当拖到适当位置时,松开鼠标左键。“拖动填充”法,非常适合公式的输入。在工作表中,多种情况下都是连续使用相同性质的公式,仅仅是按行。列循序改变单元格的地址。如果使用“拖动填充”法,就能自动调整公式中单元格的地址编号,可极大地提高工作效率,从而不需要一…     

电动机拖动虚拟实验设计及在教学中的应用

作为一种新兴的实验手段,虚拟实验已成为高校实验教学的重要组成部分。在开发电动机拖动系统虚拟实验时,针对Multisim软件存在的不足和教学实验要求,搭建了电动机模型和多种负载模型。详细论述了基于Multisim的电动机拖动系统仿真模型的设计方法与封装步骤,针对Multisim仿真不收敛的情况,给出了相应的解决方法,列举了该仿真模型在虚拟实验教学中的应用案例,总结了在电动机及拖动基础课程中使用上述电动机拖动系统虚拟仿真模型的特色与优势。教学实践表明,基于该模型的虚拟实验可与实验室实验互为补充,互相促进,帮助学生提升实验技能,开阔学生视野,实现知识的迁移与融合。     

电力拖动一体化教学初探

电力拖动是职业技术学校机电一体化专业的课程,具有较强的应用性与实践性。在现代的生产中,运用到电力拖动的区域依然非常广泛。在进行电力拖动的教学中,传统的教学方法虽然也可以增长学生知识,但不利于培养学生的实践与应用能力。本文将从电力拖动一体化教学的优势出发,分析如何更好的推动电力拖动教学,提高电力拖动的课堂教学质量。     

从零学习Flashmx课件制作编程——影片剪辑的拖动

一、相关知识 在课件中，有很多要拖动影片剪辑之处。比如在选择题中对答案的拖动，在音量控制滑杆中对滑块的拖动等等，都要用到影片剪辑的拖动以及停止拖动语句，且每次只能拖动一个影片剪辑。     

紧密联系实际 提高中职教学质量——《电力拖动控制线路与技能训练》教学浅探

随着电子技术、电动机技术和机床技术的发展,我校从本学期开始,在机电专业使用《电力拖动控制线路与技能训练》第四版教材,在使用过程中,本人认真领会大纲要求,把握中等职业教育机电专业各教材之间的内在联系,掌握各学科之间的脉络体系,明确重点和难点,努力探索提高教学实效的方法,取得了一定的成效。现结合自己的教学实际,谈一谈在实施《电力拖动控制线路与技能训练》新课程中的几点体会。     

怎样学好《电机与拖动》课

中央电大即将开设《电机与拖动》课程。这是一门技术基础课,共120学时,分两个学期授完。这门课从课程进行的顺序看,可分成四个部分:(一)直流电机及其电力拖动;(二)变压器;(三)交流电机及其电力拖动;(四)电力拖动系统中电机的选择。概括起来就是两个方面:电机(包括变压器)和电力拖动。“电力拖动”又叫“电气传动”,     

基于分层思想的界面控件拖动

通过分析传统的控件拖动方法存在的问题,提出了一种基于分层思想的、可视化的界面控件拖动的方法,并应用C#.Net核心设计模式将界面控件拖动的设计过程划分为若干层,目的是使界面控件拖动的设计具有可测试性、可管理性和可控制性的特点。     

用Flash拖动技巧为生物课件添彩

增强课堂的趣味性和探究性历来是教学中的追求。Flash拖动技巧可为生物课件添光加彩。笔者于教学中使用了这一技巧,取得了很好的效果。     

基于五星教学原理的“电机与拖动”课程教学设计与实践

为了提高“电机与拖动”课程教学效率和质量,文章首先分析了“电机与拖动”课程教学现状,然后论述了基于五星教学原理的“电机与拖动”课程教学设计与实践。     

卡思卡特城堡

It is worthy of noting that, whilst Crookston Castle witnessed the earlier and happier portion of Mary's variegated life,     

不同的吃喝玩乐

一、吃和喝吃苹果 eat an apple, 吃药 take medicine,吃糖 have some sweets,吃饭 have one's meals,吃馆子 dine out,吃惊 be surprised/     

漏洞百出的教育

Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help?     

只要努力,不要后悔

There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love.     

浅谈移民问题

Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject.     

Sister Carrie, an Adherent of Desires

Sister Carrie is one of the most controversial characters in American literature.Thought as a "fallen woman" firstly,she was defined as a "new woman" by some critics later. However, by digging into the motivaton behind the whole process of Carrie's "success", the relationship between Carrie and her creator (the author), the social conditions of then American, it can be found that Carrie has never been free-standing on her thought and she has never found her real-sdf even after becoming a famous actress. In a society dominated by mass consumerism Carrie is only an adherent of her own desires. She also is a representative of all those country girls flooded into cities, a symbol and a sacrifice of the urbanization of America in a time countryside was overcome by cities.     

Improvement of one-cycle controller by use of proportional integral differential controller

1.IntroductionOne-cyclecontrolmethod,whichwasproposedaboutonedecadeago[1],hasbecomeanattractivemethodinspecialfieldssuchaspowerfactorcorrection[2-6],switchingamplifiers[7,8],etc.Themainideaofthiscontrollerisbasedonintegrationofdiodevoltageinone-cycleandforcesittobeexactlyequaltothereferencevalue.Themainadvantageofthiscontrollerisitsrealtimeabilitytorejectthevariationofinputvoltage[1].Despitethisgreatability,ithasnogoodperformancesinrejectingofloaddisturbanceandfollowingreferencecommands.Espec…     

库克斯顿城堡

城堡, 是欧洲典型的建筑之一, 每个城堡都有一个美丽的传说或是一段历史。从本期开始, 我们将推出“城堡之旅”, 带各位读者去浏览、观赏欧洲各地的城堡, 开始一段文化与历史的旅途!     

The Reader Response Approach to Teaching of English Literature

During interview with English majors, it was found that a majority of students expressed disappointment with their experience of English literature classes. Students' dislike of learning English literature appears to be the major problem of teaching English literature in China. Reader response approach is a good way to solve this problem. In this paper, I explain the rationale behind the reader response approach, such as its origin, definition, features, assumptions, and strategies. Then I illustrate how reader response approach works as a teaching strategy by presenting several teaching models. At last I evaluate its usefuiness for teachers and present the advantages of reader response approach in Chinese context.