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11.
通过对缅甸萨尔温江干流及其支流的ADCP实测为例,介绍了目前世界上最先进的流量实时测量仪器ADCP的测流基本原理和在水文测验系统使用的优点,对其测验方式以及应用情况进行介绍,对其使用条件、测量模式、适用范围、测验精度及一些应注意的问题进行了分析。 相似文献
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The changes in neighbourhood income inequality noted in Gregory and Hunter (1995) indicate that significant changes in the nature of Australian cities have occurred since the mid-1970s. This paper seeks to establish that the regional dimension of income inequality is becoming a more important component of overall inequality. Furthermore, low status and high status areas are becoming increasingly homogenous with more low income households living together in low status neighbourhoods and higher income households living elsewhere. The inadequacies of the regional income data currently available means that it is difficult to explore changes in social welfare in any detail. 相似文献
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Oades-Sese Geraldine V.; Esquivel Giselle B.; Kaliski Pamela K.; Maniatis Lisette 《Canadian Metallurgical Quarterly》2011,47(3):747
This longitudinal study was conducted to gain understanding of the social–emotional and academic development of economically disadvantaged bilingual preschool children. In Study 1, the authors combined cognitive, psychosocial, and cultural-linguistic factors to determine profiles of social competence as measured by peer play. A person-centered analysis of 207 Hispanic American preschoolers (ages 4 and 5 years) yielded 6 distinct profiles, 2 of which were socially competent and 1 of which was vulnerable. Findings revealed profile differences in social competence and a significant relationship between bilingualism and social–emotional development. In Study 2, the authors determined which profiles were associated with later academic achievement and growth of English proficiency. Findings indicated a significant relationship of early social–emotional development to later academic success and English acquisition, highlighting the role of bilingualism. (PsycINFO Database Record (c) 2011 APA, all rights reserved) 相似文献
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工业厂房结构包含钢筋砼结构、钢结构、预应力钢筋砼结构以及砖木混合结构等多种类型,不同类型厂房结构承重构件用材各异,优缺点不尽相同。为便于理解不同类型结构厂房特点,本文对钢结构及钢筋砼结构工业厂房的优劣性进行了比较与分析。 相似文献
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工业厂房结构包含钢筋砼结构、钢结构、预应力钢筋砼结构以及砖木混合结构等多种类型,不同类型厂房结构承重构件用材各异,优缺点不尽相同。为便于理解不同类型结构厂房特点,本文对钢结构及钢筋砼结构工业厂房的优劣性进行了比较与分析。 相似文献
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肖湘林 《湖南工业大学学报》2003,17(4)
对领事裁判权的产生、扩张、撤废作了一定的考证与分析,认为领事裁判权是强肉强食的产物,是外国列强操纵中国司法的重要手段. 相似文献
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This article is the first of two papers that engage critically and productively with the relationship between the socio-economic transformations of cities, the differentiation of vulnerable groups within urban space and the distribution of transport services. This article undertakes a comprehensive review of the major conceptual and methodological approaches by which scholars and policy researchers have sought to address the connection between social disadvantage and access to transport. The article critically assesses the relative merits of various spatial analytical methodologies in illuminating social-transport links. The study finds that there is a need for greater sophistication in the use of analytical methods in transport research as well as an imperative for greater sensitivity to social differentiation within urban areas and relative to infrastructure and services. The article concludes by developing a method for combining spatial social and transport service data that is then deployed in the empirical case study reported in the second paper. 相似文献