合作式案例教学法的形成及功能

合作式案例教学的过程由精选案例、组内合作、组间讨论、成绩绑定四个基本的环节组成。合作式案例教学用于教师教育,其功能表现为两个层次：第一个层次是基本功能,是由案例教学本身所产生的,主要受益者是案例教学过程中的教师和学生;第二个层次的功能是它的引申功能,指的是案例教学的广泛实施,对解决现实中的教育问题丰富教育理论所产生的重要作用。     

论情报研究成果的推广应用

阐述了情报研究成果五大基本属性是情报研究成果推广应用得以实现的内在条件,并提出了抓好情报研究成果推广应用工作的必要措施。     

谈书名号的引申用法

书名号是用来标明书名、篇名、报刊名等的符号,它的基本用法有四种.由于书名号的用法比较灵活,所以在行文或出版物中书名号误用、滥用现象较为普遍.它的引申用法是指一切精神和文化产品的具体名称均可用书名号标注,在使用中有些争议,应引起高度重视.     

广义对数均值的单调性和凹凸性

拓广平均由K.B.Stolarsky给出定义并列出其各种形式,而大部分含有两个变量的平均值都是拓广平均值的某种特殊情形.文章给出拓广平均值的一类情形,并利用有关中值定理和导数工具着重讨论了此类平均值函数的单调性、凹凸性.     

Simple shear endochronic eqiations for finite plastic deformation

The endochronic equations proposed by Valanis (1980) were extended to a finite deformation range. Jaumann's rate,Fu's rate and Wu's rate were incorporated into the endochronic equations to analyze simple shear finite deformation. Incremental equations and numerical solutions are deduced for three endochronic objective models. The results show that an oscillatory shear stress response to a monotonically increasing shear strain occurs when the Jaumann's rate objective model is employed for endochronic materials. The oscillatory response is dependent on the adopted objective rate. Compared with the Jaumann's rate, the Fu's rate and the Wu's rate satisfy the restrictions to elastic-plastic constitutive relations and are in agreement with the experimental results.     

戊戌维新时期的女子教育思想

戊戌维新时期,以康有为、梁启超为代表的维新派明确提出了兴办女学的主张,论证了兴女学是提高国民素质,进而达到救亡图存、富国强民目标的重要途径之一。戊戌维新时期女子教育思想对近代女子学校教育发展起到了积极的推动作用。     

段注的假借引申

段注中有些标示“假借”或“借”的地方并非指一般汉字的音同音近的假借,而是属于词义的引申。将其称为段注的假借引申,并对其进行统计和分类讨论,说明“假借引申”与段注听说的“严人,物之别”的转移引申既有联系也有区别;以“假借”或“借”指称词义引申是段注的条例之一。     

英汉颜色词的对比及翻译

要正确译出英汉语中大量与基本色彩有关的词语,关键是准确把握这些色彩词的基本语义和引申义。通过对英汉基本色彩词基本语义和引申义的比较,探讨了色彩词语翻译的一般规律并概括出四种基本译法。     

Longitudinal analyses of educational outcomes for youth transitioning out of care in the US: trends and influential factors

ABSTRACT

This paper draws on data collected from two of the most extensive longitudinal studies of care leavers in the US. The Midwest Study (2003–2011) included 732 youths in foster care in three Midwestern states, and the CalYOUTH Study (2012–present) includes 727 youths in California foster care. The paper has three objectives: (1) describe trends in secondary and postsecondary educational attainment at different ages; (2) summarise findings on predictors of educational attainment; and (3) summarise findings on the impact of extended foster care (EFC) on educational attainment. Results from these two studies show that by age 21, 77–85% of care leavers finish a secondary credential and 31–52% enrol in college. By age 25, about 8% have earned a college degree. Results from multivariate analyses find that youths’ educational background and parental status were consistently associated with later educational attainment. Specific aspects of social support also influenced college outcomes. Life demands after enrolling in college (e.g. employment, parenthood) played a more influential role in college degree attainment than did aspects of youths’ background. Characteristics of colleges also predicted youths’ odds of degree completion. Finally, existing evidence suggests that EFC promotes secondary credential completion and college entry, but not college persistence or degree completion.     

基于二阶RC锂电池模型的自适应卡尔曼SOC估算

为了更加精确地估算锂电池荷电状态,建立能够反映电池动态工作特性的二阶RC等效模型。在模型参数辨识的基础上,先用数学分析、电路模型构建相关状态方程与观测方程,再结合扩展卡尔曼滤波算法,针对状态噪声与观测噪声的不确定干扰,提出一种自适应调整方案。通过锂电池放电实验,结合MATLAB仿真分析,验证了自适应调整后的卡尔曼滤波算法可更精确地预估锂电池荷电状态,与扩展卡尔曼滤波算法相比,该算法降低了约2.31%的误差。