聚类分析及其在人口研究中的应用

本文系统概述了聚类分析、特别是系统聚类法的原理和应用,并用系统聚类法中Ｗａｒｄ 最小方差法来研究我国各地区人口发展状况的分类问题,从而得到了直观而全面的聚类谱系图及合理的分类结果     

科学技术与精神文明关系的一种定量研究方法─SPA-SM模型

把科学技术与精神文明看作是具有一定联系的两个集合,运用集对分析的同异反分析思想和联系度表达式,初步建立了一种基于集对分析的科学技术与精神文明的关系之SPA-SM模型．     

苏青都市女性文学的现代分析

苏青是中国现代文学史上一位有着特殊经历而又备受争议的女性作家。本文主要从苏青作品的视野、题材、观点、心理、语言等方面 ,分析了苏青都市女性文学的特点 ,并探讨了苏青都市女性文学的成因及价值     

Understanding the Role of Individual Innovativeness in the Acceptance of IT‐Based Innovations: Comparative Analyses of Models and Measures*

As new technological innovations are rapidly introduced and changed, identifying an individual characteristic that has a persistent effect on the acceptance decisions across multiple technologies is of substantial value for the successful implementation of information systems. Augmenting prior work on individual innovativeness within the context of information technology, we developed a new measure of adopter category innovativeness (ACI) and compared its effectiveness with the existing measure of personal innovativeness in IT (PIIT). Further, we examined two alternative models in which the role of individual innovativeness was theorized differently—either as a moderator of the effects the perceived innovation characteristics of usefulness, ease of use, and compatibility have on future use intention (moderator model) or as a direct determinant of the innovation characteristics (direct determinant model). To ensure the generalizability of the study findings, two field studies (N= 634) were conducted, each of which examined the two models (moderator and direct determinant) and measured individual innovativeness using the two measures (ACI and PIIT). Study 1 surveyed the online buying practices of 412 individuals, and Study 2 surveyed personal digital assistant adoption of 222 healthcare professionals. Across the markedly different adoption contexts, the study results consistently show that individual innovativeness is a direct determinant of the innovation characteristics, and the two measures share many commonalities. The new measure offers some additional utilities not found in the PIIT measure by allowing individuals to be directly classified and mapped into adopter categories. Implications are drawn for future research and practice.     

稳定性二氧化氯合成、分析及消毒杀菌试验研究

提出了合成纯度较高的稳定性二氧化氯的方法,对影响合成反应的条件,包括温度,原料,稳定剂等进行了探讨,并确定了最佳稳定剂及其用量,对二氧化氯的含量进行了测定,对其消毒杀菌能力进行了试验。     

罕见联体犊牛的解剖及分析

本文报道并讨论分析了一例罕见的先天性联体犊牛 ,结果发现该联体犊牛的心脏、血管及肠等异常 ,为家畜及人体联体胎儿的临床手术提供了参考和可借鉴的资料。     

数字图书馆知识管理的创新

阐述数字图书馆知识管理的涵义以及知识管理创新的内容,并通过一些国内外的知识管理案例来说明。理论与实践结合,具有一定的现实意义。     

Selecting a Portfolio of Technologies: An Application of Decision Analysis

The Department of Energy is faced with the critical and complex decision of selecting technologies for waste site remediation. This research focuses on developing a decision support tool which assists the decision maker to find an optimal portfolio. A portfolio consists of selecting the appropriate processes for a remediation site and, subsequently, selecting a technology for each process so that the decision maker's objectives are achieved. The measures supporting the objectives are risk, life-cycle cost, and time required for remediation. The model uses exponential attribute utility functions with an additive objective function. The model provides the decision maker with estimates of the cost and time distributions, and their associated utility. Cumulative frequency distributions illustrate the dominance of technology choices and the variance in the results. The model permits sensitivity analysis in the form of rainbow and tornado diagrams to display the effects of changes in the values of the input variables. Overall, the model provides a generic technology selection tool that can be used to make better informed decisions and may be easily manipulated to reflect changes in the remediation process.     

制度变迁背景下人民币实际汇率趋势研究：1986-2009

 1986年至2009年间,人民币汇率制度几经变迁,人民币/美元名义汇率水平也多次呈现出跳跃性的变动,这使基于CPI等价格指数构造出的人民币/美元实际汇率指数含有明显的异动成分。本文运用异常值分析方法,分离了这段时间人民币/美元实际汇率中的异动成分,并估计了异动成分的性质和大小。这些异动都是人民币/美元名义汇率的贬值造成的实际汇率的永久性贬值。剔除这些异常变动后,人民币实际汇率序列呈现出明显的确定升值趋势。     

对比分析中的民族文化色彩

本文试图运用对比分析的方法,在词汇的民族文化语义层面上,对汉、英、日、俄四种语言,主要是汉英两种语言进行对比描述,以期将其应用于外语教学实践中,进一步提高我国的外语教学水平和质量。