一种用于类的数据流测试中构造控制流图的算法

分析类的数据流，说明数据的定义-使用对；给出构造类的控制流图的一种算法．     

关于"师范教育"向"教师教育"转型的思考

我国传统师范教育体系与社会发展需求存在明显差距。“师范教育”的终结性和一次性的教师培养模式，难以适应全面推进素质教育和创新教育的要求。建立开放的教师培养模式与教师职业专业化、教师职前职后一体化的终身教育理念，是由“师范教育”向“教师教育”转型的先决条件。     

求解最小费用流问题的蚁群算法

为了运用蚁群算法解决最小费用流问题,首先结合有向网络描述了最小费用流数学模型,运用从终点向始点反向计算的思想求解在最大可行流约束下的最小费用,然后给出了其具体过程.最后通过仿真实验,调整圈法和标号算法验证表明：该算法是有效可行的.     

环保型"托里拆利实验"演示器

“托里拆利实验”是初中物理教学的重要内容，但是在实验中汞对教室环境的污染和破坏却一直存在。为了解决这一问题，笔者对原来教材中介绍的实验装置，做了较大程度的改进，改进后的装置如图1所示，笔者将其命名为，环保型“托里拆利实验”演示器。现介绍如下。1　仪器的构造该仪器共由7部分组成，前6部分依次连通。其中汞消毒器中装有在硫磺粉中反复揉挫过的海绵，下部用弯管与水银盒相通；水银盒为一透明密封塑料小盒，盒深20mm，盒内汞液的深度为17mm，盒的右侧有一小孔；短玻璃管通过小孔直插入水银盒汞液液面以下14mm处，向上依次连通…     

求最大完全子图的启发式着色算法

本文提出了一种求最大完全子图的启发式着色算法.该算法通过为顶点着色将已知无向图划分为极大完全子图的并集,再根据各极大完全子图中顶点的多少选取最大完全子图.随后为提高算法执行效率,又对该算法提出了一种精简措施.最后将该算法运用于一集成电路测试数据编码压缩实验中,证明了该算法对求解最大完全子图的有效性.     

网络最大流的最大容量有向路算法

针对单源、单汇网络给出最大流问题的一个新算法--最大容量有向路算法,算法的核心思想是利用分层原理在增量网络中反复寻找从源点到汇点的在一定规则下的容量最大的有向路,直至找不到有向路为止.给出算法的复杂度为O(mn)与最大流问题的两个具有代表性的算法--Ford-Fulkerson算法和Dinic算法,作了复杂性和实例比较,结论是最大容量有向路算法的效果好于Ford-Fulkerson,算法不低于Dinic算法.该算法完全能够编程实现,仿真试验结果表明,算法效果良好.     

论日语"スル前"和"シタ後" 复句的时间性质

本研究日语“スル前”和“シタ後”复句的时间性质，分析了两种从句内的体的意义构造在界限性方面的不同的体现，以及它们的变异“スル前から/まで”和“シタ後から/まで”复句的时间顺序的本质。     

基于蚁群算法UML活动图的测试用例生成研究

为了节约软件测试成本,减少测试用例数量,提出了一种利用蚁群算法直接从UML活动图中生成测试用例的方法。通过对UML活动图和蚁群算法进行形式化规约,构造人工蚁群,然后依据DFS遍历由UML活动图转化的有向连通图G,最后生成测试用例。通过仿真模拟,对提出的方法进行验证以及对实验结果进行分析,证明了该算法的可行性和有效性。     

网络最大流算法在房产推销策划中的应用

在房产营销过程中，利用图论中的匹配思想，把追求销量最大的目的转化为求偶图的最大匹配问题，然后用网络最大流算法给出解。     

水稻基因组测序"工作完成图"明年完成

水稻基因组测序项目负责人于军教授今天在第七届国际人类基因组大会上表示，继具有国际领先水平的中国水稻（籼稻）基因组“工作框架图”和数据在中国完成之后，水稻基因组测序“工作完成图”将于２００３年完成。中国是水稻的发源地和世界上最大的水稻生产国，水稻基因组测序这一成果由中国科学家独立完成，其意义非比寻常。在测序完成后，数据即在网上予以公布，向全世界提供免费下载。《科学》杂志等权威刊物对中国科学家进行的水稻基因组测序工作相继作了报道。与此同时，由于基因测序的成本极高，有人对中国自己独立完成该项目的必要表…     

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,     

Western and Eastern culture differences in commercial field

The communication of people partially is the communication of cultures. Culture has a direct effect on international commercial activities in all aspects. Different conceptions about time, space, equality, law and the like, lead people to deal with things in different ways. So to know cultures of the counterpart is to facil-itate our enterprises so as to have a smooth and successful communication in commercial activity.     

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…     

风的曲线

Rosco and I wait for the fishermen to return.I sit at a wooden bench near the store at Mt.Baker Resort and watch the clouds change shape. Rosco has my belt around his neck and an eight foot tow chain hooked to a tree. Dogs must be on a leash. Ducks and rabbits are loose.