句法手段对名词性并列结构中语义量级的强制     

王伟 《河南师范大学学报(哲学社会科学版)》2006,33(5):133-135

本文重点讨论名词性并列结构中并列项所表达的语义与语法的对应关系,尝试从量级范畴入手,在句法形式对名词性并列结构中语义量级的反作用问题上提出自己的观点。  相似文献   

南京市中学生体育成绩成因多角度调查与分析     

李丹  稽明海 《南京体育学院学报(社会科学版)》1999,(4)

通过对江苏省从事脑体两类工作的男女老年人群的体质状况的抽样调查与比较 ,发现从事脑力劳动与体力劳动的两类老年人群在体质方面存在明显的群体差异 ,总体上看 ,脑、体两类劳动者的体质比较中 ,体力劳动者在大部分指标上占优 ,总体体质状况好于脑力劳动者 ,只在智力水平上弱于脑力劳动者 ,因而两者体质总体差距较大。  相似文献   

浅谈影响难美项群裁判员评分客观性的因素     

王之春  王浩  Su Xiaomin 《安徽体育科技》2008,29(6):36-38

通过访谈和文献研究,分析了目前在难美项群中影响裁判员评分公平性的主要因素,并针对这些主要问题提出对策,以提高裁判员的业务水平和职业道德素质,使得裁判员评分更加客观地反映出运动员的真实水平,促进竞技体育健康发展。  相似文献   

建筑施工现场漏电防护技术     

袁成华 《淮北职业技术学院学报》2004,3(2):58-59

目前建筑施工现场用电很不规范,漏电保护起不到多级保护作用,甚至断电时间长而影响施工。本文对如何进行漏电保护进行剖析并提出合理设置,防止触电  相似文献   

汉代乘传制度探讨     

梁锡锋 《河南师范大学学报(哲学社会科学版)》2004,31(2):77-79

汉代的乘传制度是在先秦、秦代乘传制度基础上发展和完备起来的。这一制度基本上存在于整个汉代。乘传通常有四等;但亦有超常规的六乘传、七乘传。乘传级别固然由使用者的地位、身份决定,但事情的紧急程度也起重要作用。乘传主要是在有军国大事时使用,因而对汉朝的统治有着重要意义。但是由于制度的缺陷性,特别是王莽时期的滥用,使这一制度在实施过程中也出现了不少弊端,从而降低了它的作用。  相似文献   

利用秒表法找转子静平衡   总被引：1，自引：0，他引：1  

张鸣 《淮南职业技术学院学报》2010,10(3):16-18

泵与风机的振动常常是由于转子不平衡不良引起的,现在火力发电厂中高压、高速的大型泵与风机对转子精确平衡的要求更高,特别是在检修、更换转子上的零件后,找平衡成为检修中十分重要的环节,其中秒表法找转子静平衡由于操作简单、省时、误差小等诸多优点而被广泛的应用。  相似文献   

加压喷动流化床煤快速热解的三维数值模拟     

周冠文  钟文琪  YU Aibing 《中国科学院大学学报》2020,37(2):210-219

对处理量为50 kg/h的中试尺度喷动流化床反应器内加压煤快速热解过程进行数值模拟。研究反应器高度、煤进料口位置等结构参数以及不同压力（0.1、0.3和0.5 MPa）、射流风与流化风比值（0.2、0.3和0.4）和粒径（0~3和0~6 mm）等操作参数的影响规律。结果表明：升高压力,煤与半焦混合程度降低,煤气产率提高;流化风量Q_f不变,随射流风量Q_s增加,气固流动更剧烈,颗粒温度分布更加均匀,顶部出口颗量增加;增大粒径虽可降低挥发分出口的颗粒量,但不利于煤与半焦混合。  相似文献   

ECRIMO,an app to train first graders' spelling: Effectiveness and comparison between different designs     

Cynthia Boggio  Ahmed Zaher  Marie-Line Bosse 《British journal of educational technology : journal of the Council for Educational Technology》2023,54(5):1332-1350

The present study assessed the effectiveness of the ECRIMO educational application designed to build first-grade level spelling skills. We tested whether using the app to teach spelling would be as effective as providing the same training using traditional paper exercises. The effect of integrating gamification into mobile learning apps, which has been little studied in the context of young children, is also investigated. A pretest/training/posttest design was implemented with 311 first-graders divided in four groups: no training, paper training, the ECRIMO app with gamification features, and the ECRIMO app without gamification. Spelling, reading and phonological awareness abilities was measured at both pretest and posttest. The training was conducted over a 7-week period (4.40 hours in total). The experimental design allowed us to answer three questions: (1) Is spelling training effective regardless of the medium used? (2) Is training through the app as efficient as paper-based training? (3) Does gamification impact students' learning performance? Mixed-model analyses revealed (1) a positive effect on the training outcome depended on the initial spelling ability of participants, (2) a comparable efficiency between autonomous training using the ECRIMO app on tablets and the same training provided by teachers using paper exercises and (3) a marginally positive effect of gamification that is greater for the weakest students. The present study proposes an original and pertinent experimental design to test the relevance of educational applications. The design features of learning apps can impact students' learning differently depending on their initial level. A critical step should be verifying that using online apps for training is at least as effective as the same training using paper exercises.

Practitioner notes

What is already known about this topic

• A significant number of children experience difficulties in reading and spelling from the first years of learning.
• The use of new technologies to support classroom teaching is rapidly developing as a topic of interest for educational professionals and researchers.
• Evaluations of new technologies developed to enhance literacy skills suggest that many factors can vary their effectiveness.
• The effectiveness of a digital educational application can be enhanced or undermined by design choices, such as gamification.

What this paper adds

• Spelling training with the app ECRIMO seems effective for first year students, especially those with the lowest and middle level.
• Comparable effects of both the tablet-based and paper equivalent training on participants' spelling were found.
• The use of gamification in ECRIMO could be more suitable for the weakest students.

Implications for practice and/or policy

• Educational technologies should be evidence-based and should be evaluated with both a passive and an active control group.
• The design should be carefully considered and tested, as it may be advantageous for some students and disadvantageous for others.
• The use of digital technology in education can be beneficial for classroom practice, when the activity can be carried out in total autonomy, leaving the teacher available for a group of pupils with specific needs.

  相似文献