基于SEM的高校阳光体育运动投入水平评价模型研究

运用了文献资料法、调查法制定了高校阳光体育投入水平评价指标调查问卷,利用因子分析法筛选出评价模型的18个观测指标,并利用结构方程模型（SEM）对学校投入、部门投入、教师投入和学生投入等4个维度进行验证性因子分析,构建了学校阳光体育运动投入水平评价模型。研究表明：所构建的4个维度18个观测指标的高校阳光体育运动投入水平评价模型的各拟合优度指数均符合统计学要求,可作为研究工具对高校阳光体育运动投入状况进行测评。     

A hierarchical model of e-government service capability: An empirical analysis

Enhancing the effectiveness and efficiency of e-government services at affordable costs continues to be an interesting discussion. Given the lack of guidelines on the effective management of such services, we propose a hierarchical model of e-gov service capabilities and develop theoretical links. We used confirmatory factor analysis to investigate observed data from 102 cities in 26 provinces in Mainland China. Furthermore, we adopted path analysis to explore the potential relationships among the effects caused by the processes involved in delivering e-gov services. Our results may serve as practical contributions to the management and improvement of e-gov service capabilities.     

A Structural Equation Modeling Evaluation of the General Model of Instructional Communication

The General Model of Instructional Communication introduced by McCroskey, Valencic, and Richmond (2004) is supported in its original conception by canonical data. This study, however, uses structural equation modeling (SEM) to provide a more detailed analysis. Although the model as originally hypothesized fits the data poorly, analysis of the SEM results suggests adjustments to the original model that substantially improve the model's fit. The revised model accounts for significant portions of the variance in the outcome variables, provides a more detailed explanation of the relationships involved, and has implications for future research. Bootstrapped parameter estimates suggest that the results are replicable.     

Dimensions of test performance in English as a foreign language in different European settings: a two-level confirmatory factor analytical approach

The present study explored data from a survey of students’ performance in English at the end of compulsory school in 6 European countries. The aim was to gain deeper knowledge of the internal structure of the test and to discuss similarities and differences between the different settings regarding patterns in language proficiency. The analyses, conducted by a factor analytic approach and 2-level structural equation modelling (SEM) techniques, indicated an overall English achievement factor at both student and school levels. Furthermore, an effect of format differences at the student level, constituted by a factor related to tasks demanding constructed response, was found. Three correlated modality factors related to listening, linguistic, and reading skills were identified but not further elaborated on as they improved the model only modestly. Considerable differences in between-school variation were found in the different settings. The results are discussed in relation to the instrument, student achievements, and the state of English in the participating countries.     

基于搜索引擎与用户体验优化的OPAC研究

针对当前OPAC网站缺少搜索引擎与用户体验优化而造成用户流失的现状,对OPAC优化的背景、现状与需求、搜索引擎与用户体验优化概况、用户体验与访问质量及优化策略进行研究.通过采用简短域名、提高系统访问速度、设计简洁大方的页面布局、编写简单明了的网页源代码、使用规范的Html标签、放置科学合理的关键词、设置尽量短的内部链接及提升用户体验等优化策略,并对OPAC与搜索引擎、活跃用户与流失用户、优化的影响与评价等关系进行详细分析,呼吁重视OPAC的搜索引擎与用户体验优化工作,以增加活跃用户,实现OPAC的核心价值.图3.表2.参考文献16.     

农村居民集中居住潜在需求意愿及影响因素——基于河南省四个试点县的调查数据

本文以合理行动理论（TRA）为依据,基于河南省四个试点县（濮阳县、杞县、固始县、汝阳县）359户农村居民的调查数据,运用结构方程模型（SEM）对影响农村居民集中居住意愿的因素进行了实证分析。结果表明,农村居民特征、农村居民行为态度、主观规范、感知行为控制等对集中居住意愿有显著影响;农村居民集中居住决策理性尚处在“生存理性”向“经济理性”过渡阶段;家人意见及已经集中居住者的意见对农村居民集中居住决策有显著正向影响。     

A post-Byzantine icon of St Nicholas painted on a leather support. Microanalysis and characterisation of technique

The pigments, organic materials and techniques used on a post-Byzantine icon of St Nicholas were determined by means of several micro-analytical techniques. The icon painter covered the leather support with silver leaf about 3 μm thick to create a smooth working surface. Animal glue was used to secure the leaf to the leather, and FTIR spectroscopy has identified another layer, 30–60 μm thick, of the same material applied as a primer above the silver. Above that, a layer of lead white covering the entire surface creates a white substratum serving the same purpose as the gesso on a wood panel. The colour palette, determined by means of scanning electron microscopy and FTIR spectroscopy, is very simple. Only seven colours were identified: lead white, caput mortuum, red and yellow ochre, cinnabar, carbon black and smalt. As far as we know, this is the first time that smalt has been found on a Byzantine icon. Since smalt was chemically synthesised only after 1500 AD, it may be concluded that this icon was painted after the end of the 15th century. Beeswax was used as a protective varnish.     

陕西省重污染企业技术变迁式转型升级模式研究—基于SEM模型的实证分析

陕西省的重污染企业为研究对象,从技术变迁的角度出发,通过分析陕西省重污染企业技术变迁模式及其与转型升级模式之间的关系,进而提出陕西省重污染企业的五种技术变迁式转型升级模式：生产流程重组、废弃物治理流程升级、产品升级、管理升级、销售模式升级;并进一步对构建的转型升级模式的运作机理进行具体阐述,利用SEM模型对各模式的转型升级效果进行实证分析,结果表明五种模式对企业转型都具有正向影响,且生产流程重组和管理升级影响效果比较明显;促进企业生产流程的智能化、管理的信息化成为陕西省重污染企业进行转型升级的重点。     

移动搜索用户满意度测评模型构建研究

文章在用户满意度测评模型基础上,构建了移动搜索用户满意度测评模型。采用实证研究方法,设计问卷并收集数据,利用AMOS软件进行结构方程建模,使用结构方程模型分析方法,论证模型的科学性和合理性。同时分析模型中各相关因素的作用关系,为移动搜索进行用户满意度测评提供一个科学、可靠的测评模型。     

弹丸焦与其它石油焦微观形貌之分析对比

由于渣油劣质化和苛刻的操作条件,在生成石油焦的过程中夹杂出现弹丸焦的几率越来越大。为了更加准确地判断石油焦的种类及理化性质差异,选取典型针状焦、海绵焦、弹丸焦为研究对象,采用电镜扫描、偏光显微等方法进行特性表征,所得图像比以往文献的更加清晰可辨。微观形貌分析较外观形态等宏观性质的分析更能准确全面反映弹丸焦与其它石油焦的特性差异。将扫描电镜、偏光显微镜图片结合起来可以较为清晰地区分各种焦炭的微观外貌差异,为深入研究焦炭（特别是弹丸焦）的微观性质及生焦历程提供了分析判断的参考依据。