功率键合图在液压系统动态特性数字仿真研究中的应用

本文以直动式溢流阀调压系统动态特性的数字仿真研究为例，详细地介绍了功率健合图的符号规则；以及按照其规则由物理模型建立健图模型和由键图模型建立数字仿真模型──状态方程的步骤和方法，对于机电系统的数字仿真研究具有一定的借鉴意义。     

数字校园中的毕业设计探讨

数字校园给广大师生的专业研究、学习生活带来了丰富的信息资源。充分利用和发挥URP信息技术平台的优势，加强教学资源建设，优化毕业设计过程控制，改进传统的毕业设计管理流程，建立毕业设计知识管理体系，以提高毕业设计教学质量。     

数字时代的管理革命

在数字时代,如何认识技术的进步、信息的功能及新经济的性质,不论对政府管理,还是对企业管理都是非常重要的问题。要高度重视电子技术与信息技术发展带来的机遇与挑战,制定相应的对策。     

Measures of Association and Visualization of Log Odds Ratio Structure for a Two Way Contingency Table

The odds ratio (OR) is a measure of association used for analysing an I × J contingency table. The total number of ORs to check grows with I and J. Several statistical methods have been developed for summarising them. These methods begin from two different starting points, the I × J contingency table and the two‐way table composed by the ORs. In this paper we focus our attention on the relationship between these methods and point out that, for an exhaustive analysis of association through log ORs, it is necessary to consider all the outcomes of these methods. We also introduce some new methodological and graphical features. In order to illustrate previously used methodologies, we consider a data table of the cross‐classification of the colour of eyes and hair of 5387 children from Scotland. We point out how, through the log OR analysis, it is possible to extract useful information about the association between variables.     

From Indymedia to Anonymous: rethinking action and identity in digital cultures

The period following the social mobilizations of 2011 has seen a renewed focus on the place of communication in collective action, linked to the increasing importance of digital communications. Framed in terms of personalized ‘connective action’ or the social morphology of networks, these analyses have criticized previously dominant models of ‘collective identity’, arguing that collective action needs to be understood as ‘digital networking’. These influential approaches have been significantly constructed as a response to models of communication and action evident in the rise of Independent Media Centres in the period following 1999. After considering the rise of the ‘digital networking’ paradigm linked to analyses of Indymedia, this article considers the emergence of the internet-based collaboration known as Anonymous, focusing on its origins on the 4chan manga site and its 2008 campaign against Scientology, and also considers the ‘I am the 99%’ microblog that emerged as part of the Occupy movement. The emergence of Anonymous highlights dimensions of digital culture such as the ephemeral, the importance of memes, an ethic of lulz, the mask and the grotesque. These forms of communication are discussed in the light of dominant attempts to shape digital space in terms of radical transparency, the knowable and the calculable. It is argued that these contrasting approaches may amount to opposing social models of an emerging information society, and that the analysis of contemporary conflicts and mobilizations needs to be alert to novel forms of communicative practice at work in digital cultures today.     

论虚拟参考咨询服务

虚拟参考咨询服务主要有电子邮件、FAQ、实时虚拟、合作虚拟等四种咨询服务模式。目前国内虚拟参考咨询服务还不够普及，还有很大发展空间，其趋势朝网络信息化和全球合作化发展。     

当代大学生对女性印象内隐实验研究

本实验采用内隐联结测验（IAT）,回避社会赞许效应等干扰因素,考察了当代大学生对于女性印象的内隐态度,发现他们更认同与现代女性形象即他们女性印象是积极地,独立自主的。且这种内隐认同态度不存在性别差异、城乡差异及文理科差异。     

Twenty-First Century Lesbian Studies,edited by Noreen Giffney and Katherine O'Donnell

Using a convenience sample of 157 undergraduates, this study explored the likeability ratings of target characters from selected film clips who were described as gay or heterosexual as they associated with a gay-described foil character (i.e., a character against which the target is compared). As predicted, male respondents who strongly endorsed anti-gay prejudice viewed gay-described targets more favorably than heterosexual-described targets when each target was paired with a gay foil. Further, this pattern of biased ratings by high-prejudice male participants against our heterosexual target differentiated these participants from both low-prejudice male and high-prejudice female respondents. In contrast, but as hypothesized, high-prejudice female respondents compared to high-prejudice males rated heterosexual-described targets more favorably than they rated gay-described targets.     

Estimation and simulation of conditional hazard function in the quasi-associated framework when the observations are linked via a functional single-index structure

We consider the estimation of the conditional hazard function of a scalar response variable Y given a Hilbertian random variable X when the observations are linked via a single-index structure in the quasi-associated framework. We establish the pointwise almost complete convergence and the uniform almost complete convergence (with the rate) of the estimate of this model. A simulation is given to illustrate the good behavior in the practice of our methodology.     

Modelling hierarchical clustered censored data with the hierarchical Kendall copula

This article proposes a new model for right‐censored survival data with multi‐level clustering based on the hierarchical Kendall copula model of Brechmann (2014) with Archimedean clusters. This model accommodates clusters of unequal size and multiple clustering levels, without imposing any structural conditions on the parameters or on the copulas used at various levels of the hierarchy. A step‐wise estimation procedure is proposed and shown to yield consistent and asymptotically Gaussian estimates under mild regularity conditions. The model fitting is based on multiple imputation, given that the censoring rate increases with the level of the hierarchy. To check the model assumption of Archimedean dependence, a goodness‐of test is developed. The finite‐sample performance of the proposed estimators and of the goodness‐of‐fit test is investigated through simulations. The new model is applied to data from the study of chronic granulomatous disease. The Canadian Journal of Statistics 47: 182–203; 2019 © 2019 Statistical Society of Canada