4位半积分式数字直流电压表设计

A／D转换环节直接影响仪表的测量精度和分辨率,本文通过数字直流电压表的硬件电路及软件的设计,给出了以89C51单片机为核心、以分立元件制作的双积分型A／D转换器为主要部件的4位半积分式数字直流电压袁的设计方案,并对所设计的电压表进行了测试,结果测量误差≤±0．03％,精度达到4位半。实现了自动量程转换功能,有很好的实际应用价值。     

新课程改革与中学数学教师专业化水平的调查研究

数学课程标准对数学教师的专业化提出了更高的要求,通过调查发现数学教师专业化存在着一些问题,具体表现在：专业理念与数学教学行为之间存在差异、专业知识不完善、专业素养不足。高等师范院校作为培训在职中小学教师的基地,其培养目标、教学内容、课程设置直接影响或决定课程的实施和中小学数学教师的专业化水平,因此,高等师范院校在数学教师培训方面应注意调整培训内容,转变传统的教学方式,更新培训目标。     

从“快乐男声”“超级女声’’看大众的音乐审美倾向

“快乐男声”“超级女声”是当下我国流行音乐界最时尚的名词。它的成功使社会不断地讨论它所产生的效应。由于是大众选出来的“快男、超女”,而且大家喜欢的音乐占据了很大部分,所以比较充分地体现了大众的审美情趣。     

悲喜交集的生命之歌——评迟子建的《逝川》

在短篇小说《逝川》中,迟子建写了一条河,一个人,一种鱼。这条河,无疑是一条生命之河,一条时间之河,在这条河边,主人公吉喜经历了充满生机却又不乏辛酸的人生。吉喜与泪鱼的对照,显示出吉喜强韧的生命力。这条河流淌着的,是一曲悲喜交集的生命之歌。     

公司法律责任的相对独立性

随着改革开放的深入和市场经济的逐渐健全,在我国,法人的民事主体地位也显得越来越重要。十届全国人大常委会第十八次会议表决通过的《司法修订案》就是这一现象的最好说明。这部法律的出台为我们调整今天法人在市场交易中的行为提供了更全面的准则,尤其是第二十条和第六十四条的规定,对我们今天的交易活动具有很强的操作价值。     

《红楼梦》与张爱玲小说肖像描写语言比较研究

曹雪芹和张爱玲都对小说中人物肖像描写倾注了大量的心血,一方面,他们巧用工笔、对比手法及人物视角勾描人物肖像,彰显出人物肖像描写语言之同;另一方面,张爱玲又淡化主观评价,灵活运用意象．从而凸现出自己在肖像描写语言方面的独特构思与创造。     

论我国产品责任的立法完善

随着我国《产品质量法》的正式颁布施行,我国特有的市场经济的产品责任制度初步形成。本文对我国产品责任的相关立法完善提出了一些建议。     

择业观念对大学毕业生就业影响的实证研究

The concept of job-hunting is an important factor affecting university students’ employment. This empirical study shows that while hunting for a job, graduates witness negative correlation between their expectation of the nature of work and the demand for occupational types and the accessibility to a post and monthly income; positive correlation between students’ initiative and employment opportunities; positive correlation between salary expectation and real income; negative correlation between mental preparation for hardship and job satisfaction. Therefore, institutions of higher learning must strengthen their employment education, guiding students to foster a sound sense of competition, the concept of occupational position, mental preparation for vocational hardship so that students can rectify their attitude towards employment and adjust their employment concept, thus benefiting them in gaining a position. __________ Translated from Gaodeng Jiaoyu Yanjiu 高等教育研究 (Journal of Higher Education), 2007, 29(1): 46–52     

班主任在高职生职业道德教育中的作用

职业道德教育是社会道德教育的重要组成部分,班主任工作是职业道德教育的前沿部分。本文从职业道德的特点、职业道德的社会作用以及高职学生特点方面叙述了班主任的重要作用,得出班主任工作是加强高职生职业道德教育的重要途径和有力保障。     

Toward a set of design principles for decoding training: A systematic review of studies of English as a foreign/second language listening education

Listening is a major challenge for many English as a foreign language (EFL)/English as a second language (ESL) learners. Many learners find it difficult to immediately process and segment an ongoing stream of sounds. Decoding training is one of interventions that have been used to assist EFL/ESL learners. This paper reviewed empirical studies of the effectiveness of decoding training in developing EFL/ESL learners' listening. We examined the following four major factors: (a) the types of instructional activities used; (b) the effects of decoding training on student listening outcomes; (c) the main instructional enablers of decoding training; and (d) the main instructional barriers to decoding training. The two activities most frequently used for decoding training were dictation and pronunciation instruction. A meta-analysis of 13 intervention studies showed an overall significant effect in favor of decoding training over non-decoding instruction for listening education (Hedges's g = 0.553, CI = 0.348–0.759, 95% confidence interval, p = 0.000), with no evidence of publication bias. Two theoretical frameworks, cognitive learning theory and the attention, relevance, confidence, and satisfaction model, were used to synthesize 33 studies to analyze the common elements that promote and hinder the development of learners' decoding skills. We proposed a set of design principles for decoding training that are expected to enhance the effectiveness and efficiency of decoding training in EFL/ESL listening education.