完善高考3+2总分统计的科学分析     

宋景平 《扬州教育学院学报》2004,22(3):72-74

通过高考总分简单的累加,不能准确反映各科课程难易,可能导致不能公平录取的结果。本文提出了用某门课程的实际考试最高分与平均分的衡量产生加权3总分的统计方法,试图更加客观地反映考生真实成绩。  相似文献   

关于复杂的数理公式中点号使用的建议     

向阳洁 《编辑学报》2008,20(6):488-488

标点符号是书面语言的有机组成部分,用来表示停顿、语调及语词的性质和作用.笔者翻阅了数十种科技期刊,发现数理公式中标点符号的使用很混乱.  相似文献   

基于维客的知识自创造与群体创新研究   总被引：4，自引：0，他引：4  

唐挺  马哲明  靖继鹏 《现代图书情报技术》2006,1(12):58-61

基于Web2.0环境下的维客现象，结合维客技术来描述知识的创作过程，并利用布鲁克斯方程来分析信息与知识的区别，对知识的创造与知识创新进行系统分析。针对维客也有被滥用的可能，提出一些消除网络负面影响的对策。  相似文献   

基于粗糙集加权的文本分类方法研究   总被引：6，自引：0，他引：6  

胡清华  谢宗霞  于达仁 《情报学报》2005,24(1):59-63

文本自动分类是当前智能信息处理中一类重要的研究课题。本文分析了基于统计理论的文本分类的基本特点,提出采用可变精度粗糙集模型中的分类质量构造新的特征词权重计算公式。这种新的加权方法,相对于广泛使用的逆文本频率加权方法,大大改进了文本样本在整个空间中的分布,使得类内距离减少,类间距离增大,在理论上将提高样本的可分性。最后利用支持向量机和K近邻两种分类器,验证了这种新的加权方法对分类效果确实有所提高。  相似文献   

From Inarticulacy to Care     

Sheng Zou 《Journalism Practice》2018,12(4):382-399

This article seeks to critically re-open the closed structure of news coverage of ethnic minorities by proposing a dialogical model of representation, which evokes mutual understanding across differences through well-crafted narratives of minority experiences. Informed by Mikhail Bakhtin and Charles Taylor, it explores the notion of “dialogue” within journalistic narratives and delineates two dialogical approaches, namely the evaluative articulation of moral values and the polyphonic incorporation of different voices. The former suggests that journalists should employ nuanced languages to situate ethnic minorities’ aspirations and experiences in a common “horizon of significance”. The latter challenges the hegemonic monologue of an ostensibly objective narration and accentuates the manifold voices from ordinary people, urging the journalists to rethink their positionality as narrators. Two cases are analyzed to reveal how the dialogic representation can be realized in news reporting, calling for a transition from “ethics of inarticulacy” to ethics of care in journalism practices.  相似文献   

An Interview with Arlene G. Taylor     

Arlene G. Taylor 《Cataloging & classification quarterly》2016,54(8):521-536

In this interview, conducted via email during August 2016, Dr. Arlene G. Taylor discusses her career as a cataloger, professor of cataloging and classification, and her work in professional associations. Topics include her early cataloging and teaching experiences, changes in both cataloging practice and the teaching of cataloging, subject analysis, and “aboutness” as compared with form/genre access, professional experiences outside the United States, and the future of MLIS programs.  相似文献   

输水渠道横断面设计水深测试及计算(综合性)实验     

陈祖森  马亮  李彦 《实验技术与管理》2007,24(2):152-153,156

输水渠道横断面设计水深测试及计算实验结合“灌溉排水工程学”及“水力学”等学科的知识,在实验过程中,通过对实验数据的测试、分析及计算和渠道模型实物的观摩,加深了对渠道设计原理的理解,与课堂上的理论教学起到了良好的互动作用。  相似文献   

支付股息欧式看涨期权的两种定价方法     

陈金生  邓迎春 《衡阳师范学院学报》2007,28(6):45-47

根据投资组合理论,本文建立了支付股息欧式看涨期权的价格模型,并在此基础上研究了两种定价方法。  相似文献   

‘What on Earth are They Doing in a Racing Car?’: Towards an Understanding of Women in Motorsport     

Jordan J.K. Matthews  Elizabeth C.J. Pike 《国际体育史杂志》2016,33(13):1532-1550

Abstract

Motorsport is an under-researched area of socio-historical study. There is particularly limited academic understanding of female involvement in the social world of motorsports. Therefore, this paper focuses on the role of the media in presenting and establishing motorsport for women. In particular, a documentary analysis of articles published by a UK national newspaper group from 1890, and a case study of an all-female UK-based motor-racing championship are used to account for gendered processes that have influenced attitudes and behaviours towards women motor racers. The motor car emerged through technological progress in an overtly masculine-dominated industrial period. Traditional assumptions and biologically deterministic attitudes towards women were used by men to position motoring and motor-racing as a male preserve. Newspaper reporting throughout the 1930s suggests an era of heightened success for women motor racers as a result of gaining access to a key resource in the form of Brooklands motor-racing circuit. Following the Second World War, there was increasing commercialization and professionalization of male-dominated motorsport, as well as renewed marginalization and trivialization of female participants within the newspapers. These processes continue to influence perceptions of women in contemporary motorsport.  相似文献   

碳酸丙烯酯复合溶剂脱碳研究     

徐宏  李勤 《三门峡职业技术学院学报》2004,3(2):63-65

本文介绍了碳酸丙烯酯法脱碳技术概况,讨论了该技术存在的问题及溶剂改性研究的进展情况。结合我国脱碳工业的实际情况,提出了碳酸丙烯酯复合溶剂法是碳酸丙烯酯脱碳技术改进和发展的最佳途径。  相似文献