光子晶体线缺陷波导中的光孤子通信研究

采用平面波展开法分析光子晶体线缺陷波导结构的色散效应,用理论结合数值模拟的方法研究了光孤子的产生机理,给出了波导的色散曲线和入射脉冲的透射谱。结果表明群速度色散(GVD)和自相位调制(SPM)同时起作用时能够实现光孤子传输。     

化妆品广告隐喻的多模态研究简

隐喻不仅存在于语言之中,而且存在于思想和行动之中,是人们的一种思维方式。隐喻的社会功能与广告的劝说目的相吻合,因此隐喻可以应用于广告语篇中。在化妆品广告语篇中,广告的文字以及图片的创意设计同样蕴含着隐喻,这些非语言隐喻对于概念隐喻的理解具有重要意义。概念隐喻不单单依赖于语言文字,也可以通过其他模态或多种模态的协同作用呈现。隐喻在实质上是概念的而不是语言的,对多模态隐喻的研究能更好地理解隐喻这一思维方式。     

社会主义核心价值体系对青少年人生价值观影响程度的调查分析

用社会主义核心价值观教育引导青少年,是构建社会主义核心价值体系的必然选择.调查显示,目前社会主义核心价值体系对青少年的影响还只停留在表面认知及情感认同层面,难以落实到实际行动上.学校教育的教条化、社会环境的复杂化、价值观的多元化是影响教育效果的主要因素.我们要融合国家、社会、家庭、学校各方面的力量,引导青少年把社会主义核心价值观转化为自己的内在需求,帮助他们树立正确的人生观和价值观.     

Self-regulating academic learning and achievement: The emergence of a social cognitive perspective

For three decades, social cognitive researchers have studied children's development of self-regulation as an achievement of socialization processes. I recount historically the emergence of a social cognitive perspective on self-regulation and identify its unique features. Two essential characteristics of students' self-regulated academic learning have been identified — their use of strategies and perceptions of self-efficacy. A social cognitive model of academic self-regulated learning is proposed that integrates triadic determinants of self-regulated learning (personal, behavioral, and environmental) on the basis of a strategic control loop. When students monitor their responding and attribute outcomes to their strategies, their learning becomes self-regulated, and they display increased self-efficacy, greater intrinsic motivation, and higher academic achievement.     

如何构建“脑中地图”

学会构建脑中地图,对中学生的地理学习具有重要意义。     

Cognitions of Expert Supervisors in Academe: A Concept Mapping Approach

Eighteen expert supervisors reported their thoughts while preparing for, conducting, and evaluating their supervision sessions. Concept mapping (Kane & Trochim, 2007 ) yielded 195 cognitions classified into 25 cognitive categories organized into 5 supervision areas: conceptualization of supervision, supervisee assessment, supervisory relationship, supervisor self‐assessment, and administration of supervision. Implications for future research and supervisor training programs are discussed.     

基于GPS、GIS、GPRS的保险业车载调度系统方案研究与设计

本文首先对保险行业中的车载调度存在的问题做了一定的研究，并在此基础上设计出了基于GPS，GIS，GPRS三种技术于一体的一种车载调度系统，此系统能实现监控车辆的“实时在线”，并能采用”就近”原则使勘察车辆(人员)快速到达事故现场，因此能够提高保险行业中车载调度的公正性及有效性。     

Migrating product structure bill of materials Excel files to STEP PDM implementation

It is important for manufacturing companies to provide a standard for product data exchange between diverse computer systems. Past attempts to develop neutral format standards for data exchange have had limited success, and have led to the development of STEP (Standard for the Exchange of Product) as a data exchange standard. The STEP standard makes it easier to integrate systems that process various product life-cycle functions, such as design, engineering, manufacturing, logistics support, and will help to facilitate concurrent engineering. The goal of this paper is to facilitate the computer-readable exchange of the product bill of materials (BOM) information for product data management (PDM). In this paper, the STEP ISO 10303-21 is implemented to share the product data information in a manufacturing environment. A structural product bill of materials is first transformed into an Excel file format, then a PDM Schema Exporter is utilized to export a BOM Excel file to a STEP Part 21 file. A C# program decodes the STEP file into BOM information to update the PDM databases in SQL server for product data management. Also, SAS code is written to generate the indented bill of materials from the BOM information, to draw a tree diagram to present an accurate structural view of a product, and to export to PDM databases for product data structural view.     

Patenting and US academic research in the 20th century: The world before and after Bayh-Dole

The dramatic growth of patenting and licensing of publicly funded research by American research universities in the closing quarter of the 20th century has stimulated some of the highest-profile debates in science and technology policy today. The issue of what aspects of academic research should be public - and what private - lies at the heart of each of these debates. The movement of academic scientists into commercialisation of discoveries and inventions has been extolled by some as a new model of academic research, one which facilitates economic and social returns from universities. At the same time, this trend has been criticised by others as representing a socially inefficient ‘privatisation’ of academic research and as a threat to the ethos of science itself. This paper places these debates in historical context, with a review of changes in American universities’ patenting policies, procedures and practices throughout the 20th century, an assessment of the logic underlying the passage of the Bayh-Dole Act of 1980, and an overview of its effects on economic returns from university research.     

我国铁路系统生产效率的实证研究——基于DEA模型的两阶段分析

以数据包络分析法为理论工具,从生产效率的视角对我国铁路经营效率进行总体评价与定量分析,并在第二阶段通过Tobit模型对铁路生产无效率的影响因素予以识别。研究发现:(1)我国铁路总体上生产效率较低,纯技术无效率是主要根源;(2)东部是铁路最发达的地区,规模无效率和纯技术无效率分别是东部和中西部地区无效率的根源;(3)铁路普遍存在投入拥挤和产出不足的现象,中西部地区程度远高于东部地区;(4)经济发达程度、人口总数、铁路经营管理水平、铁路路网密度和公路路网密度是影响铁路生产无效率的主要因素。