作者:刘媛媛; 闫在在; 吕雄; 解云; 冀鹏浩 期刊:《数学的实践与认识》 2019年第24期
基于定量特征敏感性随机化模型中的Eichhorn and Hayre模型,运用分别比估计法和联合比估计法对其总体均值作估计,并对两种方法下的估计量进行效率比较.结果表明:若各层的样本量比较大,各层的比估计比较有效,则分别比估计法的精度要优于联合比估计法.
今年5月30日,美国Fox Business Network的主播翠西和中国CGTN主播刘欣进行了一场长达16分钟的对话。本文使用两款语料分析工具,Word and Phrase和Antconc来分析对刘欣的口语,主要从其词汇的使用,包括用词丰富度,语言的精炼度和用词准确度探讨,并为英语新闻工作者的口语提升提供建议,从语言层面打开中美平等对话的通道。
作者:李国华; 程伟华; 康建军; 王航辉; 姜丽 期刊:《医学分子生物学》 2020年第01期
目的制备新型抑制剂膜分子TIGIT(T cell immunoglobulin and ITIM domain)的单克隆抗体并鉴定其在心脏移植免疫耐受中的作用.方法用人TIGIT-GST重组蛋白免疫小鼠并制备单克隆抗体,抗体特异性实验检测抗体与TIGIT的结合能力.运用重导向杀伤实验检测TIGIT抗体对NK细胞杀伤P815的作用.通过酶吸收法检测TIGIT活化性抗体对CTLs及CD8 Treg细胞活性的影响.结果成功制备得到一株非活化的抗TIGIT的抗体7M13和一株活化性的抗TIGIT抗体4D9.抗...
很多人都使用Firefox,但是它的设置默认保存在系统盘上,重新安装系统后就会把设置全部丢失!不过,我们完全可以将Firefox的设置移到别的盘上,从而打造出绿色的Firefox!先将Documents and Setting\用户名\Application Data\Mozillak\Firefox\Profiles文件夹下的诸如wgnucjf3.default子文件夹中的所有内容拷贝到一文件夹下。
特别消息:终于盼到能下载IE7的这天了,虽然是betal版,但关注程度却依然很高。这次IE7的变化主要是在安全方面控制Cookie (Controlling Cookies)用户可以选择屏蔽某些网站的Cookie或删除系统中无用的Cookie;插件管理以及IE崩溃监测(Add-on Management and Crash Detection);
作者:田军; 席连英; 刘琴; 熊敏; 张云; 陈东方; 杨祖杰; 陆宝凤; 艾丽 期刊:《实用心电学》 2010年第05期
作者:曲晓辉; 邱月华 期刊:《当代会计评论》 2008年第02期
<正>自从1968年Ball和Brown开创以资本市场为基础的会计研究先河以来,资本市场会计研究已经逐渐成为财务会计的主流研究领域。随着我国学者研究范式的国际化,基于资本市场的会计研究取得了令人瞩目的成果。为促进资本市场会计研究的学术交流,
作者:Qin; Wenlian 期刊:《宝藏》 2019年第09期
In the 11 th issue of 2009,'treasure'magazine published the author’s article'four steps to determine the truth of lingbi stone'.This article has been widely cited by professor wen qing of tsinghua university in the teaching of the China ornamental stone association appraisal and evaluation teacher training class,and has been reproduced by magazines and media,also has its name changed to"the tru...
作者: 期刊:《百科知识》 2005年第08S期
1988年汉城奥运会:“和谐,进步(Harmony and Progress)”。
作者:文飞 期刊:《网络安全和信息化》 2005年第04期
CA在其2005年eTrust信息安全年会上了eTrust Identity and Access Management r8 Suite(eTrust IAM r8套件)。这款产品的价值何在?让我们随本刊记者的采访进行了解。
作者:贾永宏; 杨海涛; 高秀丽; 李梅 期刊:《中国牛业科学》 2015年第01期
陕西省奶牛产业转型升级核心是提质增效,其遗传改良的基础是线性鉴定技术应用。目前,由于各地对该技术应用认识不到位,线性鉴定工作普遍未开展,制约奶牛提质增效的步伐。本文通过线性鉴定技术对奶牛提质增效中的作用、线性鉴定性状遗传力与奶牛提质增效关系、线性鉴定主要性状与奶牛提质增效目标的关系和线性鉴定技术应用对奶牛提质增效意义思考的探索分析,以便提高认识,达到共识,为今后奶牛提质增效广泛开展线形鉴定技术应用打下...
作者:Valerie; Rybinski 期刊:《智能建筑与智慧城市》 2005年第11期
问题:请问TIA/EIA-606-A与TIA/EIA-606二者有何不同? Q:Please tell us the difference between TIA/EIA-606-A and TIA/EIA-606.
作者:李升伟(编译) 期刊:《世界科学》 2005年第12期
近年来,补充与替代医学(Complementary and alternative medicine,CAM)作为一类非常规医疗方法的总称,已经在美国卫生界的疾病预防和治疗中起到了重要的作用.随着越来越多的美国人选择补充与替代医学,那些常规医学院的毕业生们常常发现他们的病人希望他们对草药学和针灸学有所了解.
Diet is the precondition of human beings’survival and development.It is also one basic form of social life.However,due to the influence of geographical features,climate,customs and habits,etc.,the diet of different countries will be various in raw materials,flavors,cooking methods and eating habits.In view of this,this article aims to explore the differences between Chinese and western food cul...
作者:JIANG; Ge 期刊:《海外英语》 2019年第20期
As a leading figure of the romantic poetry,Wordsworth has a deep love for nature and this special love further leads his love for common working people as they live in nature and they are the closest to nature.As a result,the sources of his poetry often come from ordinary people's life and his poems in turn encourage common people to face misfortune and overcome hardships of life.In his We Are S...
作者:ZHU; Hong 期刊:《海外英语》 2019年第20期
Foreign language teaching is a very complicated process that includes varied factors.Among those factors,the learner's factors are very important.Learner is the main part of a foreign language learning and teaching.In recent years,considerable research has been focused on the study of the foreign language learners,especially on their motivations.Learners'motivation plays a very important role in...
Movies play an important role in showing regional culture.This thesis analyzes similar and different cultures in two movies.Similarities are in marriage and traditions while differences are in ideology,food culture and lifestyle.Happiness and The Pursuit of Happyness are adapted by true men’s stories in real places,one for Xi’an,Shaanxi province and the other for San Francisco,America.Protagon...
Becoming famous in 1960s,American confessional poetry,in response to High Modernism as impersonality and totalobjectivity,shifted focus on personal experience.When such confessional flow rushed into China in 1980s,it provided Chinese poets a confessional voice to write and investigate significant issues of world,life and society.Thus,writing in different languages and periods does not stop them ...
The name is the unique cultural phenomenon in human society.One’sOneooOoOOOOOOOO name not only a sign used to dis⁃tinguish him/her from others,but also a mark accompanying his/her whole life.It includes much information which implies the nation’s language,history,geography,religion,and cultural tradition.Research into the names of different nationalities will help us deepen the understanding ...
Non-verbal communication is a part of culture and plays a very important role in social communication.From the comparative analysis of usages and meanings of non-verbal communication between Chinese and English which people are familiar with,we can understand the Chinese and English better and strengthen the intercultural communication.