Adults' Statistical Literacy: Meanings, Components, Responsibilities

Statistical literacy is a key ability expected of citizens in information-laden societies, and is often touted as an expected outcome of schooling and as a necessary component of adults'numeracy and literacy. Yet, its meaning and building blocks have received little explicit attention. This paper proposes a conceptualization of statistical literacy and describes its key components. Statistical literacy is portrayed as the ability to interpret, critically evaluate, and communicate about statistical information and messages. It is argued that statistically literate behavior is predicated on the joint activation of five interrelated knowledge bases (literacy, statistical, mathematical, context, and critical), together with a cluster of supporting dispositions and enabling beliefs. Educational and research implications are discussed, and responsibilities facing educators, statisticians, and other stakeholders are outlined.     

宽覆盖锁相调频技术

本文侧重分析了自动频偏控制系统的工作原理,推导出环路方程,阐述了几种主要的特性。     

C波段双栅砷化镓场效应管三倍频器的研制

本文介绍了将双栅GaAs MESFET应用在三倍频器上的工作原理,设计思想,实验研制及在C波段的实验结果.这种三倍频器具有一定的倍频增益.目前国内还未见到同类产品.     

测量不确定度估算中协方差的两类评定

论述了当测量不确定度评定中出现相同原因导致某些不确定度分量相关时,用Ａ类方法计算的实质,同时提出了采用Ｂ类方法的可能性,指明按系统效应导致的分量与随机效应导致的分量的大小比,用Ｂ类方法计算相关系数的具体步骤。给出了一般情况下的计算结果。     

On the impacts of carbon tax and technological progress on China

Using a dynamic national computable general equilibrium model, we investigate the impact of carbon tax and energy efficiency improvement on the economy and environment of China. The Chinese social account matrix is presented based upon the latest input–output table (2012 IO table) and other data. The business as usual (BAU) scenario is designed according to several forecasts about China by 2030, followed by six policy scenarios, including different levels of carbon tax and technological progress as well as their combinations. The results show that carbon tax will frustrate the overall economic growth slightly. The CO₂ emission will be 13.81% lower in 2030 compared to BAU case if the carbon tax scheme is carried out at a rate of 200 RMB/ton of CO₂. Technological progress will stimulate the economic growth, enrich the household and government income, increase total investment and make most sectors prosperous with the exception of energy industries.     

基于超高频数据的日内风险价值度量研究

随着金融市场的快速发展,传统的以日为单位的风险价值（VaR）已无法满足金融风险管理的需求,计算持有期小于1天的日内风险价值（Intraday VaR）显得愈加重要。文中对日内风险价值测度的方法进行了梳理、细化和改进,对测度中细节给予更加充分的考虑,最后结合我国股市特点对日内风险价值测度进行了实证研究。     

北京等四直辖市能源利用效果的对比分析——描述统计与面板数据研究

本文基于1985-2006年中国北京、天津、上海、重庆四大直辖市的经济与能源统计数据,利用人均能源终端消费量、单位GDP能耗、能源消费弹性系数等描述性统计方法对中国地区能源利用效果进行了比较研究,并基于FGLS估计方法和Swamy变系数面板数据模型,对四大直辖市能源利用状况的扩张趋势以及能源利用水平的差异进行了测度,并提出相应政策建议.     

Can channel pattern trading be profitably automated?

Financial markets, such as the global foreign exchange (FX) market, often exhibit trending behaviour. Within such trends, the market level oscillates with changes in market consensus. Continued oscillations of this type result in the formation of wave patterns within the underlying trend known as channels, which are used by technical analysts as trade entry signals. A sample space of such channels has been constructed from a set of US dollar/British pound Spot FX tick data from 1989–1997 using pattern recognition algorithms and the profitability of trading using such patterns has been estimated. A number of attributes of the resulting collection of channels has been subjected to statistical analysis with the aim of classifying patterns that can be traded profitably using a number of simple trading rules. Results of this analysis show that there exist statistically significant links between the channels' attributes and profitability.