主观幸福感内容成分的结构关系

抽取了有代表性的506名中学生和大学生,通过结构方程建模方法对青少年学生主观幸福感的成分结构作实证的检验与分析,结果表明：正性情感和负性情感是SWB的两个相对独立的成分,在认知成分（生活满意度）与正性情感和负性情感的因果关系没得到证明之前,SWB的指标值应该是三者的综合。     

刘宋、南齐财政体系与货币政策初探

刘宋、南齐二朝财政收入以农业税收为大宗,田租、户调大体沿袭东晋,唯户调货币征收比重增加;商业税收项目大体沿袭前代。中央与地方财政关系受政局变动和社会稳定程度影响颇深。由于刘宋、南齐二朝财政状况总体不佳,官员俸禄一般无法正常发放,地方官通过送故钱弥补朝廷俸禄的不足。刘宋、南齐二朝经济状况的走势也反映在货币政策的变化上。     

数据处理在计算机辅助测试系统中的应用

计算机辅助测试系统通常采用数字滤波与整体曲线拟合的数据处理方法.以一组泵类试验中的实测数据为例,说明数据处理的原理、计算和实现的过程,以及通过曲线拟合得到的产品性能曲线.     

人机工效学:计算机辅助外语教学研究的新视角

人机工效学(Ergonomics)是一门新兴的边缘学科,试图描述和诠释人和机器、环境的互动关系。在计算机辅助语言学习(CALL)系统中,人(学习者和教师)、工具(计算机)、工作环境(外在环境和内在环境)处于特殊的互动关系中,因此,用人机工效学方法研究CALL有其独到之处。西方研究者以这种研究视角进行了一些开拓性的CALL研究,文章对这些研究的背景、理论依据、研究成果等做了简要评述,以期对我国CALL研究者有所启发。     

Q-代数的区间值（α^~,β^~]-模糊子代数

模糊区间值与区间值模糊集的重于关系概念被考虑,这种关系是模糊点与模糊集的重于关系的推广.利用这种新的思想,引入了Q-代数的区间值（∈,∈∨q）-模糊子代数和区间值（∈,∈∨q-）-模糊子代数的概念,推广了Q-代数的模糊子代数,并研究了它们的相关性质.特别地,界限模糊子群之概念被扩展到Q-代数的界限区间值模糊子代数的概念上来.     

基于UML高职院校在线考试系统的设计

以高职院校在线考试系统为研究背景,阐述了基于UML的需求描述、系统分析、详细设计和结构设计的方法,在RationalRose环境下运用UML对在线考试系统进行分析建模,搭建了在线考试系统分析设计模型,为实现高职院校在线考试系统打下良好的基础。     

基于CFAR的SAR图像分割

选用瑞利分布模型对SAR图像进行恒虚警率(CFAR)检测。提出新的参考窗口选取方法,并针对虚警特点提出新的均值估计方法。实验证明,与一般的均值估计方法相比,文中提出的均值估计方法是可行的、有效的,且与其中提出的参考窗口选取方法相结合能更好地去除虚警,保留目标信息。     

电动车能量再生技术

1　Introduction　Therateddistanceisoneofkeyfactorstolimitthedevelopmentofelectricvehicle (EV)sinceEVwasin vented .Itisawayforincreasingtherateddistancetoputtheadvancedenergyregenerationtechnologyintouse .Manyexperimentsprovethattheactualrateddistanceofaelectricscooterunderthecityroadsur roundingsisabout 35 - 45kmwhileitisabout 5 5 - 6 5kmunderthestandard proving ground .Moreover ,JapanToyotaalsoprovedthattherateddistancecouldbeincreasedby 2 0 %whenusingtheenergyregenera tionsysteminEV .Soi…     

Assessing ethics education through national tests—an advantage or not?

The purpose of this study is to describe, critically analyse and discuss the Swedish system of assessing ethics education in compulsory school through national tests. The publicly available tests from 2013 for grades six and nine have been studied as have the assessment instructions for teachers. Staff responsible for the test construction have been interviewed. The aims, core content and knowledge requirements of the curriculum were also studied. The concept ‘ethical competence’ was used as an analytical tool in the qualitative content analyses. Through the design of this study, the actual test, its process of construction and the curriculum were examined. The results suggest that ethics education, given (a) the curricular construction of what ability to assess, (b) complexities of test construction in ethics and (c) possible teach-to-the-test effects, runs the risk of being limited to an argumentative, conceptual competence, with ethics education being emptied of crucial content. However, being included in national testing can strengthen the position of a school subject. Is it then an advantage for ethics education to be tested in this way? The critical problems the study raises make the author conclude it to be a disadvantage for ethics education to be tested through national tests.     

Effective extraction of elastase from Bacillus sp. fermentation broth using aqueous two-phase system

INTRODUCTION Aqueous two-phase system (ATPS) is widely used in biochemistry and biotechnology for purifica- tion of proteins (Diamond and Hsu, 1992; Balasubramaniam et al., 2003), enzymes (Pan et al., 2001; Bim and Franco, 2000), amino acids (Li et al., 2002), antibiotics (Yang et al., 1994; Guan et al., 1994), nucleic acids (Ohlsson et al., 1978; Kimura, 2000), aroma compounds (Marco et al., 2000) and lactic acid (Planas et al., 1998). ATPS is mainly composed of two-incompatible p…