The effect of anticipated achievement feedback on students' semantic processing as indicated by the N400 cloze effect

The present study examined the effects of anticipated achievement feedback on students' semantic processing on the neural level, using event-related brain potentials (ERPs). Participants (N = 79) anticipated either self-referential or normative achievement feedback regarding an announced upcoming test. Additionally, their performance expectations (low vs. no expectations) were orthogonally manipulated. Subsequently, students' on-line semantic processing was assessed by measuring the N400 cloze effect, a component in the EEG signal of which the amplitude is associated with semantic processing. Within the low performance-expectation condition, no effect of anticipated feedback on semantic processing was found. Within the no-performance-expectation condition, participants anticipating self-referential feedback showed a more widely distributed N400 cloze effect than participants anticipating normative feedback. The results confirmed the hypothesis that the mere expectation of a particular type of feedback can affect students' semantic processes.     

Exploring mechanisms of rapid automatized naming to arithmetic skills in Chinese primary schoolers

Rapid automatized naming (RAN) is associated with children's arithmetic performance, which is multifactorial by nature and consists of arithmetic fluency, arithmetic procedure, and word problems. Yet, it is unclear whether RAN can predict all key aspects of arithmetic skills independently and what cognitive mechanisms may explain this relation. Using a sample of Chinese primary school students (N = 170), results showed that while RAN was associated with all key aspects of arithmetic skills, the relations of RAN–arithmetic procedure and RAN–word problems may be dependent on that of RAN–arithmetic fluency. Supporting the processing speed hypothesis, results further suggested that processing speed may underlie the relation between RAN and arithmetic performance. Findings made unique contribution to understanding the effect of RAN on arithmetic performance and cognitive mechanisms that may underpin this association in the context of Chinese culture.     

“4-8”轴承套圈锻车加工数字化车间研究与探索

通过对“4-8”轴承套圈锻、车加工数字化车间研发背景介绍，国内外发展现状，提出轴承套圈加工工艺流程、数字化车间组成、DNC系统架构、中央控制系统架构及功能等主要内容研究。     

图书馆文献订购经费向开放出版经费转化:目标、挑战与策略

[目的/意义]为图书馆文献订购经费转化为开放出版经费提供基于事实的案例分析和支撑,以期引起科技发展管理机构、科研教育机构、图书馆及学者对开放出版及经费转化趋势的关注,促进科技信息交流传播和图书馆创新发展。[方法/过程]采用扎根理论方法,系统分析当前传统订购模式和开放出版模式并存局面造成的多重挑战,详细调查多种文献订购经费转化为开放出版经费的试验模式并进行对比分析,提出经费转化的必要性、可行性和策略建议。[结果/结论]图书馆订购经费向开放出版经费的转化具有明确的可行性和必要性,建议从建立"抵消模式"、制定经费转化规则和协调机制等多维角度积极推动文献订购经费向开放出版经费的全面转化。     

学术期刊从订阅模式向开放获取模式转化的经费可行性研究:OA2020的启示

[目的/意义] 对文献订购经费转化为开放出版资助经费实现学术期刊从订阅获取模式向开放获取模式转化的经济可行性进行分析,以期引起科研管理机构、科研教育机构、图书馆及学者对国际发展趋势和有关行动计划的关注,促进开放获取学术交流环境的发展。[方法/过程] 分析期刊论文全面开放获取所需APC经费与当前期刊订购体系总体投入比较的案例,对国家层面参与学术期刊向开放获取转化国际行动计划所面临情况评估、判断的基础数据需求和有关监控、报告、共享机制及规范的建立提出建议。[结果/结论] 国家有关部门应支持图书馆开展有关基础性分析研究,为文献订购经费向支持开放出版转化的策略和措施的制定提供重要支持和参考。     

SAR雷达信号处理技术研究

阐述了SAR雷达主要特点、应用及其信号处理技术的发展状况，研究了SAR雷达信号处理的几个主要技术——宽带信号产生器、高采样率模数变换、脉冲压缩技术、运动补偿技术、SAR成像算法、实时成像处理器、慢速动目标检测和成像技术．对SAR雷达的进一步发展具有深远的意义．     

浅议师范院校英语专业语音教学

语音教学在英语教学中起着重要的作用。分析师范院校英语专业语音教学存在的问题。着重培养和激发学生对语音学的兴趣，同时注意精讲多练，理论结合实践以提高语音教学质量。     

用Excel处理化学中的计算问题

利用Excel处理化学中算术平均值、平均偏差、相对平均偏差、标准偏差、相对标准偏差、物质的量浓度、溶液的H+浓度、溶液的pH值、缓冲溶液等一些常见的数据处理和计算问题。     

一种凸轮升程误差的非接触式测量新方法

分析现有几种凸轮升程误差测量方法的优、缺点后，提出一种基于图像处理的凸轮升程误差的非接触式测量新方法．理论分析和比较实验结果表明，该测量方法简便易行，测量精度较高，具有一定的应用价值．     

遗失的线索:小传统与历史话语权力

中国传统的文化背景始终存在大传统与小传统的对立与交融。其中大传统始终是历史的主流 ,是历史学家的关注所在。而小传统则相对处在话语弱势与忽略之中。然而小传统下的世俗社会的发展始终延续着 ,是没有被历史记录的另一条历史线索。将小传统纳入历史话语权力中 ,从而呈现历史与社会的全貌 ,是史学发展的新方向 ,也是现代历史学家面临的课题与挑战