略论图样简化

本文指出图样简化是提高绘图速度最基本和最有效的途径之一。并就视图的简化,剖面符号的简化,利用尺寸符号简化视图,尺寸注法的简化和装配图的简化等方面进行了探讨。在符合或基本符合机械制图国家标准精神的前提下,提出了一些切实可行的方案。     

Pro/Engineer在工程制图教学中的应用

随着三维CAD技术的飞速发展和广泛应用，针对工程制图课程教学内容、教学方法及手段的特点，引入Pro/Engineer软件为实体建模工具，解决教学中出现的三维实体动态演示问题，探讨三维CAD软件在教学中的应用。     

论关联和照应及其之间关系

文章基于关联和照应两个概念,较为详细地阐述了关联与照应的蕴涵意义,从语用学角度加以分析,论证话语交际要达到的目的,指出:要提高人们对话语的认知,必须了解关联和照应是影响话语意义的两个主要部分,理清二者之间的关系,以使话语能够更成功地传递信息。     

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。     

借鉴美国西部开发经验开发我国西部地区

中国西部大开发是一项宏大而又复杂的系统工程。结合我国国情和我国西部地区的实际情况，借鉴美国西部开发的成功经验和教训，对开发我国西部地区具有重要的现实意义。     

凯恩斯经济学历史地位的再评价及其适用

凯恩斯的《就业、利息和货币通论》发表至今已经整整70年。作为现代西方经济学理论的一次里程碑式的革命,凯恩斯经济学对二战以后世界经济的发展方向产生了深远的影响。在当前凯恩斯经济学让位于新自由主义经济学的背景下,从实践上和理论上都应该汲取它的有益成分,而不应简单地抛弃。借鉴而不是否定凯恩斯经济学也是我国宏观经济理论今后该坚持的原则。     

Bayesian analysis of elapsed times in continuous‐time Markov chains

The authors consider Bayesian analysis for continuous‐time Markov chain models based on a conditional reference prior. For such models, inference of the elapsed time between chain observations depends heavily on the rate of decay of the prior as the elapsed time increases. Moreover, improper priors on the elapsed time may lead to improper posterior distributions. In addition, an infinitesimal rate matrix also characterizes this class of models. Experts often have good prior knowledge about the parameters of this matrix. The authors show that the use of a proper prior for the rate matrix parameters together with the conditional reference prior for the elapsed time yields a proper posterior distribution. The authors also demonstrate that, when compared to analyses based on priors previously proposed in the literature, a Bayesian analysis on the elapsed time based on the conditional reference prior possesses better frequentist properties. The type of prior thus represents a better default prior choice for estimation software.     

网络条件下基层图书资料室的建设与服务

在网络条件下,科研单位研究所一级的基层图书资料室仍然具有不可替代性,但必须在资料来源、储存、整理、检索、效能等方面转型,资料的配置要有明确的目标,服务方式要实现现代化.     

Telling and Re‐telling Stories: The Use of Narrative and Drawing in a Group Intervention with Parents and Children in a Remote Aboriginal Community

The Let's Start Parent‐Child Program is a manualised parent‐child program which aims to improve educational, social and emotional outcomes for Aboriginal parents and their four‐ to seven‐year‐old children. It has been implemented in the Northern Territory, Australia on the Tiwi Islands and in Darwin since 2005. This paper outlines the adaptation of the program to include narrative approaches, the sharing of stories and the use of expressive arts as a way to build understanding between program leaders and participating families. An example from a recent program is used to illustrate how the sharing of stories and expressive use of art engages and binds group participants together. It supports parents to tell their own stories, to speak about their lived experience, to reconsider aspects of their own and their children's experiences and to achieve an increased awareness of their personal resources and a sense of self‐empowerment. The program is designed and delivered with sensitivity to individual parents, children and families, where cultural and interpersonal differences and different developmental and family situations can be taken into account.     

Social mobility and demand for redistribution in Europe: a comparative analysis

The literature on preferences for redistribution has paid little attention to the effect of social mobility on the demand for redistribution and no systematic test of the hypotheses connecting social mobility and preferences for redistribution has yet been done to date. We use the diagonal reference model to estimate the effect of origin and destination classes on preferences for redistribution in a large sample of European countries using data from the European Social Survey. Our findings are consistent with the logic of acculturation in the sense that newcomers tend to adapt their views to those of the destination class at early stages and that upward and downward mobility do not have distinctive effects on the formation of political preferences. However, even though social origins seem to have a limited impact on preferences for redistribution, the evidence does not support the hypothesis that mobile and non‐mobile individuals are alike. We also find that the effect of social origin on preferences varies largely across countries. The empirical evidence leads to the conclusion that the effect of social origin on preferences for redistribution increases in contexts of strong familism.