虚拟现实建模语言与分子图形制作系统MGMS的设计

介绍了设计MGMS分子图形制作系统的功能，该系统采用三维碎片子结构构造法生成分子模型，并通过子结构匹配实现结构的快速感知。同时本也简单介绍了实现MGMS的计算机语言-虚拟现实建模语言。     

有机物三维虚拟模型的制作和浏览

介绍了Ds ViewerPro 5.0和Cortona VRML Client 5.0两软件中常用菜单栏、工具条的使用,并通过具体的实例详尽分析了使用Ds ViewerPro 5.0制作有机物分子的三维虚拟模型和使用Cortona VRML Client 5.0浏览虚拟模型的过程.     

校园三维模型的创建方法

在虚拟现实技术的研究中,三维电子地图的研究是个热点。出于学院宣传和工作需要,通过采集地理信息,制作平面图,制作三维模型等三个步骤完成了校园三维模型的创建。为校园三维电子地图的建立提供了条件。     

机械制图教学模库和网络系统的设计

网络教学是当今一门新兴授课方式,可以培养学生的学习兴趣,提高学习效率。本文针对实物模型在教学中存在的缺点,提出了将虚拟现实建模与三维设计软件相结合,制作用于辅助教学的虚拟模型的方法。首先,利用SolidWorks软件进行三维造型设计,将文件保存为指定格式文件;然后,对文件进行编辑修改,得到所需要的效果;最后,用不同的方法来绘制交线,把二维绘图和三维立体模型联系起来,得到一个完整的网络模型库。这样,在网络教学中构建的一些机械制图课程教学系统以及各系统的应用方式,在教学实践中取得了良好的效果。     

真核细胞三维结构模型制作与评价

以真核细胞三维结构模型制作为例,探讨学生模型制作与评价,为模型制作活动提供参考和建议。     

3ds max在物理虚拟实验中的三维建模应用

实验教学是理工科教学中的一个重要环节，随着网络技术的增强，虚拟实验已经被课堂教学和远程教学所采用。在虚拟实验的开发过程中，构造三维模型是基础和核心。大学物理虚拟实验应用3ds max的模型制作实践，为建模开发技术的应用提供了较好的案例。     

虚拟现实技术在网络三维课件中的应用研究

重点开发了太阳系的演示系统。研究了网络多媒体课件中三维课件的制作技术与开发。探讨了如何利用Java 3D技术在应用程序中建立三维场景、三维几何形体以及设计添加交互功能。最后指出了虚拟现实技术与网络三维课件开发的结合有着广阔的应用前景。     

浅谈如何将实时三维运算引入Flash物理课件制作

本文分析了传统课件制作方式在表现空间立体物理现象中的不足之处,结合网络课程创作实践,提出了将实时三维运算引入Flash物理课件制作的方法。     

也谈C_(60)分子模型的制作

贵刊2003年第3期刊登一篇文章,介绍了C_(60)分子模型的制作方法。笔者认为,该制作方法操作起来较为困难,特别是在画图或粘贴过程中,稍微产生误差,都难以制成球型分子模型。笔者曾制作出多种球碳分子模型,其制作思路是用两个球帽和2-3个球带来组合成一个球型分子模型。方法简单,易于操作,误差也容易调整。现介绍C_(60)分子模型制作方法,供大家参考。     

也谈C60分子模型的制作

贵刊2003年第3期刊登一篇文章,介绍了C60分子模型的制作方法.笔者认为,该制作方法操作起来较为困难,特别是在画图或粘贴过程中,稍微产生误差,都难以制成球型分子模型.笔者曾制作出多种球碳分子模型,其制作思路是用两个球帽和2-3个球带来组合成一个球型分子模型.方法简单,易于操作,误差也容易调整.现介绍C60分子模型制作方法,供大家参考.……     

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!     

胡主席在印度,我却在中国

Today, Sunday morning, I sit thinking and typing at my computer. My thoughts are in my homeland, India and my body is in China. The body is here and mind there for a good reason. Mr. Hu is president and I am resident and both are in each other's countries (what a difference the absence of one small letter makes!). Mr. Hu will return in a few days and I will stay on longer.