DOS环境变量的使用

主要介绍ＤＯＳ环境变量的成员及作用;ＤＯＳ环境变量的设置、修改、取消;ＤＯＳ环境变量与批处理文件的关系     

Using Spacing to Enhance Diverse Forms of Learning: Review of Recent Research and Implications for Instruction

Every day, students and instructors are faced with the decision of when to study information. The timing of study, and how it affects memory retention, has been explored for many years in research on human learning. This research has shown that performance on final tests of learning is improved if multiple study sessions are separated—i.e., “spaced” apart—in time rather than massed in immediate succession. In this article, we review research findings of the types of learning that benefit from spaced study, demonstrations of these benefits in educational settings, and recent research on the time intervals during which spaced study should occur in order to maximize memory retention. We conclude with a list of recommendations on how spacing might be incorporated into everyday instruction.     

老年人胆石症的外科治疗

目的：探讨老年人胆石症的外科治疗；方法：通过对老年人胆石症的发病、治疗状况分析，找出其发病和治疗特点；结果：老年人胆石症是仅次于高血压、慢支肺气肿及冠心病的第四大疾病，因病情反复，病程长，全身合并症等，其手术复杂性、危险性均增加；结论：对老年人胆石症的病人应早做手术，年龄非禁忌症，充分的术前准备，纠正及改善合并症，加强围手术期处理，防治并发症以及内窥镜手术的应用，都能够促进和改善老年人胆石症的疗效。     

铁路电力远动技术的特点

本文主要介绍了电力远动技术,配电自动化,机电监控等系统的组成情况以及发展方向。结合铁路实际研究了远动技术在铁路用电中的应用。并就建立一套完善的铁路电力远动系统提出相关的方案。以及如何实现对变配电所的监控以及对无人值班变电站的实现。远动技术的供电调度将有效的获取变电站运行的实时信息,提高了工作的效率。根据变配电系统的运行情况进行相关的负荷分配的合理的管理,保证了铁路的安全运行,减少了误操作。     

Retrieval Practice Benefits Deductive Inference

Retrieval practice has been shown to benefit learning. However, the benefit has sometimes been attenuated with more complex materials that require integrating multiple units of information. Critically, Tran et al. Psychonomic Bulletin & Review, 22, 135–140 (2015) found that retrieval practice improves sentence memory but not the drawing of inferences from the same sentences. In three experiments, we investigated whether this lack of benefit of retrieval practice for inferential ability was due to the presentation format of the material. Participants studied four sets of seven to nine related sentences by practicing retrieval for two sets and rereading the other two sets. A final test was given 2 days later. When sentences were presented one at a time during study/practice as in Tran et al., we found no effect of retrieval practice on a test requiring inferential reasoning. When sentences in a set were presented simultaneously during study/practice, retrieval practice in the form of fill-in-the-blank testing (experiments 1 and 2) and free recall (experiment 3) aided later deductive inference more than rereading. Our findings suggest that retrieval practice can improve deductive inference, but in order to optimize its utility, the format in which the material is presented during practice must not hinder relational processing of the individual sentences.     

基于巨磁电阻的液位测量传感器的设计

介绍了自旋阀巨磁电阻器件的结构和工作原理,设计了一种基于巨磁电阻的液位测量和控制的新型传感器装置,并对液位传感器装置进行了定标.该装置具有灵敏度高、体积小、稳定性好和成本低的优点,用该液位传感器装置测量液位高度的不确定度一般小于3%.     

A Systematic Literature Review of Funding for Higher Education Institutions in Developed Countries

Resource allocation and funding in higher education is crucial to the success of reform and transformation of our higher education system. With a view to identifying trends and best practices in the area, utilizing a method of systematic literature review, we have critically reviewed relevant theories and practices from developed counties that are covered in the scholarly literature published in English in the past 10 years. Our review has revealed: (1) Several universal trends have exerted a decisive impact on resource allocation in higher education, for example, funding reduction and tuition fee increases, performancebased funding, privatization, corporatization, and internationalization; (2) Several theories underpin key research in the area, for example, new institutional economics, resource dependence theory, and political economy; (3) Several controversial issues have made their way into public debate, for example, higher education as a public good or private good, academic capitalism, educational equity, and the role of econometrics.