A cultural map of the United Kingdom, 2003

This paper employs Multiple Correspondence Analysis (MCA) to map cultural participation and taste in the UK. It constructs what Bourdieu calls a space of lifestyles from evidence collected in a national random sample survey of the British population in 2003. MCA constructs the space relationally on the basis of similarities and differences in responses to questions about a large number of cultural items in several sub‐fields including music, reading, TV and recreational activity. These items are mapped along two axes and their clustering indicates affinities between tastes and practices across sub‐fields. The cultural patterns are described. We then superimpose socio‐demographic variables, including class, educational qualifications and age, the distribution of which indicates tendencies for certain categories of person to have shared tastes. The analysis reveals meaningful, socially differentiated patterns of taste. The space of lifestyles proves to be structured primarily by the total volume of capital (resources) held by respondents and by age. Strong oppositions are revealed. An older, educated middle class shares ‘legitimate’ established cultural preferences. The repertoire of a younger middle class group contains more contemporary and ‘popular’ items. Less well‐educated, working class groups are characterised often primarily by lack of cultural participation, but also, especially among the young, by an aversion to ‘legitimate’ culture.     

数字时代学术图书馆物理空间的智慧型功能

介绍了图书馆物理空间从以“藏”为主、“藏阅”一体发展到多元化功能的演变过程,分析了数字时代图书馆物理空间的存在正是基于其“城市第三空间”的价值以及知识筛选保存和作为学习场所的需要,并探讨了学术图书馆智慧中心的交流、学习和研究功能.     

船舶轴带发电机整流器的前馈解耦控制

为进一步提高船舶轴带发电机效率,建立基于前馈解耦控制的空间矢量脉宽调制(Space Vector Pulse Width Modulation,SVPWM)整流器的轴带发电机整流系统.采用一种基于电压电流双环控制的三相SVPWM整流器.电压外环与电流内环组成的解耦模块能实现对有功功率和无功功率的解耦控制,使幅值和频率均变化的交流电通过整流变换为稳定的直流电压.给出电流内环和电压外环的比例积分(Proportion Integration,PI)调节器的设计参数.在MATLAB/Simulink上建立仿真模型,验证控制模型的可行性.仿真结果表明,该整流器具有快速的动态响应和良好的稳定性.     

高校图书馆建筑面积指标探讨

新建馆舍功能用房的设置、建筑规模与建筑体量的确定根本上是如何确定和分配建筑面积问题。依据图书馆建设实际,综合调查了解的情况,以2万平方米馆舍建筑为例,研究各功能用房所占面积比例。     

高阶中立型差分方程正解的存在性

利用在集合上定义映射和不动点原理,讨论奇数阶中立型差分方程正解的存在性。根据中立型项取值的不同情况,得出相应方程正解存在的充分条件。