远程教育在教育公正进程中的作用探究

教育公正是社会公正的重要内容,是社会公正在教育领域的延伸和体现,也是实现社会公正的重要手段和途径。推进教育公正,对于构建和谐社会具有重要意义。在发展中国家,可以从基础设施建设、资源建设和质量保证等方面入手推进远程教育的发展,促进教育公正的实现。     

埋弧焊在长输管线现场应用的可行性分析

埋弧焊在管线钢工厂生产焊接中取得了很好的应用效果,若把这种焊接工艺引进到长输管线施工现场,将完全打破传统的根焊+热焊+多遍填充+盖面焊的焊接模式,将极大的提高现场施工速度。本文根据埋弧焊原理及特点,通过分析管线钢埋弧焊焊接接头性能,结合长输管线现场施工特点,探讨了管线钢在现场应用的可行性,并提出了埋弧焊在长输管线现场施工中的应用模式。     

Gender,family ties,and international mobility: Cultural distance matters

This study empirically tests a model of associations between family-domain variables and willingness to accept an international assignment, and applies the general model to sub-samples of men and women to examine gender differences in the pattern of relationships. We further explore these patterns in culturally similar and culturally distant country destinations. Analyses conducted with a sample of 148 men and 79 women employed MBA graduates from dual-earner couples revealed that perceived spouse willingness to relocate, beliefs regarding spouse and couple mobility, relative income, and the presence of children are associated with willingness to accept an international assignment. Moreover, consistent with social role theory, significant gender differences in willingness were found across low and high cultural distance country destinations.     

原油动态计量技术在仪长管道上的应用

介绍了仪长管道原油动态交接计量的现状,探讨了原油动态计量交接中误差产生的原因,分析了流量计、原油密度、原油含水量、油品温度和压力以及其它因素引起的误差,提出了消减误差的方法及措施。     

The determinants of service exports from Central and Eastern Europe

The transition economies of Central and Eastern Europe (CEE) have become important exporters of many types of services to Western Europe. We identify the sources of CEE’s advantages over competing exporters, such as India, China and Brazil, using disaggregated data on service exports and a novel estimation technique for the gravity equation. Our results indicate that the importance of geographical distance varies substantially across types of service exports. Geography is important for exports of construction services, but it has a negligible impact on computer‐related services. However, the relative quality of legal institutions influences trade across a broad range of service categories. The results demonstrate that aggregating services that are not homogeneous could conceal important differences in the effects of geographical distance and other variables on the pattern of service trade.     

Analysis of Korean millennials’ travel expenditure patterns: an almost ideal demand system approach

ABSTRACT

Generational cohorts can differ in their consumption patterns and preferred travel behavior. As the millennial generation represents an important economic force and influences new consumption trends, this study utilizes nationwide data and almost ideal demand system (AIDS) approach to examine expenditure patterns of Korean travelers during holidays. In this process, the joint effects of travel-related characteristics are also examined. The results of the AIDS estimation on data from 871 domestic travelers reveal significantly different travel expenditure patterns for cohorts. The findings contribute to furthering the understanding of how different generational cohorts allocate their travel budgets to respective travel expenditure categories.     

Delivering International Management Education in China Using Tutored-Video Instruction Technology

ABSTRACT

This paper presents the results of a study of classroom performance and student attitudes of (on-site vs. the off-site) students enrolled in a distance education international management program leading to a MBA degree. The program was developed by the McLaren School of Business at the University of San Francisco and involves two large Hong Kong-based Chinese corporations. The off-site students of this distance education took classes at Hong Kong, Beijing, Shenzhen, and Guangzhou via Tutored-Video Instruction methodology. The students were highly satisfied with the program and its delivery. However, their performance was less than anticipated.     

汉明距离发生器实现方案的研究

汉明距离是用来衡量2个二进制码字之间的相似程度的，本文主要针对用FPGA实现的汉明距离发生器，详细研究了其关键部件累加器的几种实现方案，给出了波形仿直结果时延及战胜FPGA资料的统计结果，提出了一种能大在缩短电路时延、提高运算速度并节省资源的实现方案，最终用FPGA实现并应用于一种卫星通信的帧同步系统中。     

Distance in time between transition economies and the European Union

The time distance methodology used offers a new perspective to the problem, an additional statistical measure, and a presentation tool for policy analysis and debate readily understood by policy makers, media and general public. Disparity between the analysed transition economies and EU countries is considerably smaller for other indicators than for GDP per capita. Compared with Ireland, Portugal and Greece Slovenia was in 1995 in 13 cases behind (but time lag of Slovenia never exceeded 10 years) and in 13 cases ahead of them. Sicherl (1997a) discusses application of S-distance to time series regressions, models, forecasting and monitoring. First version received: October 1995/final version received: April 1998     

排球中的物理问题:有目的的扣球

排球教练向作者提出了一个排球中的物理问题:“运动员应跳多高去扣球才能使球过网并落在对方场地预想的区域内?”作者在本文中应用抛物体的运动公式及有关的力学知识推导证明这个问题,并获得了当球落在对方场地的预想区域时,运动员跳起扣球的高度公式.