共查询到20条相似文献，搜索用时 78 毫秒
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殷汉卿 《中学生数理化(高中版)》2011,(12):46-46
一、问题的提出
1850年，克劳修斯提出了热力学第二定律，据此定义了熵这一热力学函数，并用符号“S”表示，经过证明得出“系统从状态A经由不可逆过程变到状态B，过程中热温熵的累加和总是小于系统的熵变△S.” 相似文献
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章岚芳 《福建教育学院学报》2007,(11):10-11
本文从“新课标”出发，立足于个人的教学实践，以《杜十娘怒沉百宝箱》、《熵：一种新的世界观》、《听潮》等文章为例，探讨了语文教学的根本问题：“认清教的是什么。” 相似文献
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"智力障碍"定义的新演化--以"功能"、"支持"与"生活质量"为导向的新趋势 总被引：6，自引：5，他引：6
本文从我国使用的智力障碍定义的来源 ,分析了从 1992年到 2 0 0 2年以来的智力障碍定义的演化过程 ,比较了美国智力障碍协会 (AAMR)智力障碍定义 1992系统与 2 0 0 2系统之间联系与区别 ,认为 1992年以来的 10年关于智力障碍的定义演变过程中 ,智力障碍的定义的内涵中保持了一个值得注意的连续性 ,这就是“功能”、“支持”和“生活质量”三者之间的内在联系。本文通过阐述这三个概念以及关系 ,表达了 2 1世纪国际智力障碍特殊教育及相关服务中的一种值得注意的趋势 ,认为这种趋势也将对我国特殊教育走向产生重要影响 相似文献
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熵是物理学中一个非常重要的概念，因此，《物理课程标准》也引入了熵的内容，要求学生“通过自然界中宏观过程的方向性，了解热力学第二定律．初步了解熵是反映系统无序程度的物理量．”《物理课程标准》给出的熵概念的定义是宏观熵还是微观熵呢？ 相似文献
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该文从“女性定义”的角度讨论了“男性写作”和“女性写作”的关系，认为“女性写作”的提出是挤兑“男性写作”而共同成为“写作”概念之下的二级概念，并以此获得同等地位的女性主义文学理论策略；它有利于“写作”理论的深入研究。 相似文献
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刘岗 《邵阳学院学报(社会科学版)》2005,4(4):105-108
“language learning”和“language acquisition”从语言学习的本质上看可以互译；语言的“学习”和语言的“习得”在本质上本来相融。文章从分析关于“学习”与“习得”的已有的正反两方面理论入手，介绍中外经典的定义，列举知名专家的历验，提出作者自己的观点：“学习”是即时的“习得”，“习得”是即时的“学习”．二者交融相通。 相似文献
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邱崇丙 《唐山师范学院学报》2014,(1):21-23
汉字的六书,《说文》对“转注”一类,语焉不详。后世学者提及转注,也仅限于许慎所举出的例字。《汉字例说》一文,作者从转注的角度综合考虑,对部分现代常用字作了分析,跟传统的解释有所不同。希望能抛砖引玉,互相切磋,以推进学术研究。 相似文献
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《海外英语》2007,(5):10-11
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? 相似文献
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Rachel Zupek 《海外英语》2007,(11):40-41
我们绝大部分人都同意一件事情——我们喜欢金钱。但是你对金钱的喜欢之情足够到让你创立一份事业么?.财富通常被人忽视,主要在于人们不能真正了 相似文献
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《海外英语》2007,(4):36
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. 相似文献
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YANGShiguo 《重庆大学学报(英文版)》2004,3(1):86-88
The problem on the geometrc inequalities involving an n-dimensional simplex and its inscribed simplex is studied. Aninequality is established, which reveals that the difference between the squared circumradius of the n-dimensional simplex andthe squared distance between its circumcenter and barycenter times the squared circumradius of its inscribed simplex is not lessthan the 2(n-1)th power of n times its squared inradius, and is equal to when the simplex is regular and its inscribed siplex is atangent point one. Deduction from this inequality reaches a generalization of n-dimensional Euler inequality indicating that thecircumradius of the simplex is not less than the n-fold inradius. Another inequality is derived to present the relationship betweenthe circumradius of the n-dimensional simplex and the circumradius and inradius of its pedal simplex. 相似文献
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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. 相似文献
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GUO Bao-feng Xiao Da-wei 《重庆大学学报(英文版)》2005,4(3):129-133
Using virtual reality for interactive design gives a designer an intuitive vision of a design and allows the designer to achieve a viable, optimal solution in a timely manner. The article discusses the process of making the Virtual Reality System of the Humble Administrator＇s Garden. Translating building data to the Virtual Reality Modeling Language （VRML） is by far unsatisfactory. This creates a challenge for computer designers to do optimization to meet requirements. Five different approaches to optimize models have been presented in this paper. The other methods are to optimize VRML and to reduce the file size. This is done by keeping polygon counts to a minimum and by applying such techniques as object culling and level-ofdetail switching. 相似文献