Travel writers and the nature of self: Essentialism,transformation and (online) construction

A lacuna of academic research exists that explores contemporary travel writers’ lived experience, particularly how they perceive their s​ense of self through their work as a forum for self-discovery and self-transformation. Using the essentialist self and socially constructed selves as theoretical frameworks, this research extends the concept of multiple selves to these writers and new forms of online media. Qualitative interviews were conducted with 47 travel writers and data were analysed using an Interpretive Phenomenological Analysis. Findings suggest that many travel writers (co)construct an online self and use their writing to transform themselves. The cathartic process of writing, interaction with their readership and the importance of establishing a social identity online emerged as influences on the nature of self.     

三维地下空间信息系统应用综述

探讨三维空间信息系统在城市规划以及国民经济建设中的应用。     

2009年新加坡科技发展的政策调整与措施

新加坡面对金融危机和甲型流感（H1N1）的袭扰，及时调整应对政策和措施，本文介绍并探讨了新加坡加大科技投入，加强科技人才和企业人才的培养，利用高科技手段及时研制出防治甲流的防护用品、快速检测设备等举措，以上政策和措施对我国科技发展具有借鉴意义。     

数字信号处理的发展与应用

本文通过概述数字信号处理的发展历程,主要介绍数字信号处理的发展与应用,并展望DSP发展前景。     

论微博问政对公共政策制定的影响

伴随着微博渐趋平民化与大众化,微博问政这一“民间舆论场”受到网民青睐.微博问政对公共政策的制定利弊皆存：它有利于推动社会问题进入政策议程,维护政策合法化,促进政策制定的民主科学化；但由于虚假信息过多、利益集团、国外敌对势力的干扰、数字鸿沟的差异使得微博问政给公共政策制定也带来消极影响.本文将立足阐述微博问政兴起的背景与发展现状,分析其对公共政策制定的利弊,最后将探讨提升微博问政在公共政策制定中效能的路径.     

公文流转中文件安全传输的技术实现

为进一步提高办公效率，实现中央银行与银行业金融机构之间公文高效、安全传递，本文简要介绍了金融机构间公文传输中所涉及的安全技术：PKI（公钥设施基础）基本概念、基本组成、基本运行模式以及RSA算法，并设计了金融专网间公文安全的传输技术方案。     

Pace,rhythm, and scope: process dependence in building a profitable multinational corporation

Many potential benefits of foreign expansion have been identified in the literature, yet empirical support that multinational firms perform better than domestic firms is mixed. This paper takes a longitudinal perspective and argues that how much a firm benefits from having foreign subsidiaries depends on its process of internationalization. We argue that a firm's capacity to absorb expansion is subject to constraints: some expansion patterns increase profitability less than others, owing to diseconomies of time compression. We hypothesize that the speed of internationalization, the spread of the geographical and product markets entered, and the irregularity of the expansion pattern negatively moderate a firm's increase in profitability resulting from international expansion. Model estimations based on panel data raised strong support for these predictions. Copyright © 2002 John Wiley & Sons, Ltd.     

Socio-technical challenges in the development of digital multimedia broadcasting: A survey of Korean mobile television development

This paper examines the prospectus of Digital Multimedia Broadcasting from the technical, economic and regulatory issues. This paper attempts to gain a better understanding of how DMB will evolve and stabilize in next generation network environments. Two research questions guide this study: (1) How does DMB trigger a change in policy, market and industry structure? (2) What are the driving forces of the rapid DMB development in Korea? As these questions involve socio-technical issues, this study uses a socio-technical perspective to investigate the complex relations between the social and technical aspects of DMB by highlighting the co-evolving nature, diversity, and interface between different driving forces and policy. The finding is that Korean DMB is the outcome of a proactive strategy of a telecom carrier and the Korean government's industrial policy to support such strategy. Among the push-oriented trajectory, however, non-technical issues such as users, market and regulation are left behind, which reveals the disjunction of the DMB development in terms of the socio-technical system perspective. The development of DMB sheds light on the growing challenges in the dynamics of industry, regulation, and technology.     

高速数字信号处理采集数据的存贮

本文针对高速数字信号处理技术中存在的数据接口问题,分析了几种数据存贮结构,在此基础上给出了一种性能/价格比较优的总线隔离的数据存贮器直接存贮数据接口结构。     

码移键控系统的性能分析

讨论了码移键控(CSK)基本原理、基于数字匹配滤波器(DMF)的快速捕获结构和用相关乘法器代替数字匹配滤波器的快速捕获结构,并对CSK系统的接收性能进行数学分析,得到了数据码错误率公式。