上海地区百年农业气候资源变化特征

本文应用滑动t检验、Yamamoto's检验、功率谱等数理统计方法分析了上海1873年～2006年气温、降水、辐射、日照等资料,结果表明：上海地区年平均气温有明显升高趋势,平均每10年增加0.14℃,冬季和秋季的增温最为显著,平均每10年增加0.16℃;日平均气温5日滑动平均稳定通过0℃、10℃活动积温呈明显的上升趋势,平均每10年分别增加52.6℃·d和49.6℃·d;无霜冻期每10年增加8.7天。年降水量略有增加,其中春季降水增加显著,平均每10年增加31.8mm,秋季则略有下降。通过正态检验及概率估算,上海出现春涝的概率为20.43%,出现秋旱的概率为50.72%;年内降水分布不均,降水集中,暴雨日数增多。上海地区总辐射、水平面直接辐射呈显著的下降趋势,平均每10年分别减少102.1MJ/m²和156.2MJ/m²,散射辐射有明显的增加趋势,平均每10年增加47.6MJ/m²,日照时数略有减少。     

"体育"就是"身体教育"--谈"身体教育"术语和概念

本文从法语、英语、俄语、德语、日语和中文的史料,探寻"身体教育"术语的符号表现形式和概念的演变.求证中文"体育"概念应有的含义及科学规范的使用方式.     

Incremental Relevance Feedback in Japanese Text Retrieval

The application of relevance feedback techniques has been shown to improve retrieval performance for a number of information retrieval tasks. This paper explores incremental relevance feedback for ad hoc Japanese text retrieval; examining, separately and in combination, the utility of term reweighting and query expansion using a probabilistic retrieval model. Retrieval performance is evaluated in terms of standard precision-recall measures, and also using number-to-view graphs. Experimental results, on the standard BMIR-J2 Japanese language retrieval collection, show that both term reweighting and query expansion improve retrieval performance. This is reflected in improvements in both precision and recall, but also a reduction in the average number of documents which must be viewed to find a selected number of relevant items. In particular, using a simple simulation of user searching, incremental application of relevance information is shown to lead to progressively improved retrieval performance and an overall reduction in the number of documents that a user must view to find relevant ones.     

浅谈科技翻译译者能力构建

经济全球化迅猛发展的形势下,国际市场对科技翻译从业者提出了更高的要求。文章以第五届中国职业翻译交流大会会议内容为素材,总结了科技译者不仅应具备双语能力,还应具备术语能力和语言情商,通过国际翻译市场中真实的例证,对如何提高科技翻译译者能力做出思考并给出建议。     

接受美学视域下古语英译的审美再现——以温总理答记者问翻译为例

接受美学视角下的翻译是一种富有创造性的审美心理活动,审美再现是翻译的灵魂。本研究以温总理近几年来的记者发布会英译稿为个案,以接受美学为理论指导,作者从译者主体性发挥,把握审美距离,合理模糊具体概念等方面探讨了如何在古语英译时达到审美再现。     

期限结构模型在资产负债管理问题中应用的探讨

本文说明了期限结构模型在资产负债管理中的运用，指出为了保持证券估值的精确性，在资产负债管理模型中必须合理地逼近不确定性。     

Lcm分数序列T(5,n)和T(6,n)的通项公式

利用最大公约数和最小公倍数的性质,给出了Lcm分数序列SLRS(5)和SLRS(6)的通项公式T(5,n),T(6,n)。     

中国证券市场IPOs长期表现的实证研究

本文利用Fama—French三因素模型对1996年在上交所上市的71只新股的长期表现进行了研究，认为我国存在长期弱势现象，但弱势程度在逐渐减弱。接着从不同角度对样本进行分类，结果说明没有任何一种分类会出现强于大盘的情况。     

基于Web的文本检索位置加权模型研究

本文分析了传统向量空间检索模型在Web环境下的不足，提出了两种改进的线性加权模型及非线性加权模型；实验结果表明，两种模型的文本检索能力相比传统向量模型都有较大提高。     

Retest effects in matrix test performance: Differential impact of predictors at different hierarchy levels in an educational setting

If tests of cognitive ability are repeatedly taken, test scores rise. Such retest effects have been observed for a long time and for a variety of tasks. This study investigates retest effects on figural matrix items in an educational context. A short term effect is assumed for the direct retest administration in the same test session, and a long term effect is assumed for a retest interval of six months. Using multilevel modeling, we analyze if the magnitude of these effects is not only influenced by individual variation, but also by the cluster structure of students grouped within classrooms. We also investigate if the use of identical versus parallel tests has an impact on the size of the retest effects. Our main results show a negligible short term retest effect, but a large long term retest effect. Using parallel tests does not contribute to understanding individual differences in retest effects. The variation in retest effects is larger between classrooms than between students. Reasoning ability, as measured with a different test, and school grades significantly influences retest effects at the individual level, but at the classroom level, only reasoning ability is a significant predictor.