辛热力学原理

设2n维辛流形T*M的局部坐标为力学正则变量(q,p),定义T*M的2s维子流形T*N的两套坐标分别为热力学变量(X,Y)和(S,T),则从力学变量到热力学变量为正则变换g_2:T*M→T*N。另一正则变换g_3:T*N→T*N给出全部热力学公式。Hamiltonian 正则方程给出诸热力学变量的时间演化。特别由dT/dt=-?H*/?S=0得到物质相变的条件之一为内压力P_I=0。可望通过研究材料的内压力寻找高临界温度超导体。     

基于MATLAB7.0的RLC阻尼振荡电路建模方法研究

在电路分析中经常会遇到一些阻尼振荡电路,由于这类电路在高压断路器开断能力测试、受控热核研究等许多重要的工程领域有着极为广泛的应用,因此有必要对此类电路的特性加以讨论,研究.本文首先介绍了建立数学模型的方法,然后利用了时域中传统的微分方程法和频域中经典的拉普拉斯变换法对电路进行分析.最后借助于MATLAB软件来对一类RLC电路的过渡过程进行仿真分析,并对其产生的误差作出了一定的解释.     

Hybrid practices? Contributions to the debate on the mutation of science and university

Summary This article reflects on current debate over transformations of scientific research and universities. Four well-known mutation theories (Mode-2 knowledge production, triple helix of university–industry–government relations, academic capitalism and enterprise university), and their recent critiques, are reviewed. It is suggested that a better understanding of the changes can be achieved by drawing analytic insight from research that speaks about scientific practices. Advantages that may be so attained are illustrated through a case study of a plant-biotechnology research group that pursued to straddle the fuzzy university-business boundary. On such grounds, three arguments that pertain to the mutation theories are put forward: (1) the need to appreciate the dynamics between theoretical, experimental and applied dimensions of research work; (2) the fact that external research funding intermingles with the complex social ecology of disciplines at the departmental level of universities; (3) the difficulties academics encounter as they try to fuse their university activities with private commercial development.     

美国大学崛起的制度秘密——以大学法人制度的两次转型为考察中心

美国大学何以崛起?这是历来学术界和实践界共同关注的一道重要命题。从法律层面剖析,美国大学崛起的根本秘密在于大学法人制度,其形成与确立主要缘于以"国家理性"为核心特征的近代化转型和以"市场机制"为核心表征的现代化转型。具体来说,多元化的大学法人身份是美国高校的直观特点,而"外行董事会制度""终身教职制度""认证制度"这三大制度则共同支撑起美国几百年来不朽的高等教育发展史。     

教育：社会转型与文化想象

在经济全球化的语境下,在文化转型的这样一个关键时刻,教育必须将其置身于＂文化中国＂的语境中,直面民族共同体的文化命运。而对文化的重新领会、重新进入,并在这种进入的过程中有所觉悟、有所发明,这就是教育的原初含义。而教育、文化、想象与人四者具有相同的时间结构,它们都将过去、当下、未来构成一体。教育、人、文化和想象本来就是一体相通,真正深刻地成为某个人也就与一种文化的命运不可分割地联系在一起。人的可能性中天然地包含着对文化的可能性的关切,人的自我想象中内在地具有文化想象的品格。教育就是要使得个体将自我的理解与一种文化的命运自觉关联起来。     

浅谈英文原版电影对英语口语的提高作用

国内英语环境的缺乏造成国内英语学习者的口语学习困难,观看英文原版电影其实也是学英语的好途径.文章以风靡美国的情景喜剧《老友记》（Friends）为例,分别阐释了原版电影中的语音、句子与词汇、内容与题材以及文化和思维在英语口语学习中的提高作用.     

英语本科专业学生从应试到应用型学习的转变

基于高考压力,许多英语专业学生无法及时地从应试型学习转变到应用型学习,这大大影响了其学习效果和作用。本文旨在分析其原因,并提出了几点解决方案,大学生需要实现从心态和方法,从教师指导型学习到自主学习等各方面转变,以尽快适应应试型学习到应用型学习的转变。     

社会转型期教育的认同危机

在社会转型的背景下,全球社会正处于一个重新评价和自我怀疑的时期,原来那种学校概念就差不多可以涵盖教育概念的状况已经不能满足一个多元、复杂的社会的需求。多样性是教育的必然选择。     

Trans-nationalization of educational policy making: from European innovation projects in adult education to an emerging European space for lifelong learning: what model for the European vocational education and training policy?

This article is drawn from broader qualitative research on innovation in the field of professional adult training within the framework of European pilot projects such as the LEONARDO projects. This research aims at contributing to a general understanding of the phenomenon of innovation, in the context of European calls for projects, as an instrument of the European Vocational Education and Training (VET) Policy, which is supposed to transform the national training systems of EU member states according to the Lisbon Strategy. For this article, the author has chosen to present some of the results of the analysis of the European VET Policy and its transition to a lifelong learning policy. The first part of this article describes the conceptual framework and more especially three of the main concepts examined: public policy, social innovation and European space. The second part distinguishes three periods in the European VET policy’s history, identified through a genealogical examination from its first step within the European Coal and Steel Community to the present lifelong learning policy. The third part highlights the specificity of this supranational public policy model and the links between the European VET policy, the LEONARDO programme and the pilot projects. In conclusion, this article supports the idea of antagonistic logics in the evolution of this policy, on at least three levels: decision-making powers, conception of VET systems and conception of learning.     

根癌农杆菌介导植物遗传转化的分子机制

根癌农杆菌介导转化法是目前应用最广泛的植物转基因方法,通过植物表达载体上DNA的加工和转移将外源DNA转运到植物细胞内.主要介绍了根癌农杆菌介导植物遗传转化的分子机制.