电信市场开放过APEC主要经济实体的影响

电信市场开放从某种程度上说是为跨国电信企业市场运劳国际化战略提供了通行证。电信市场开放有一系列显著特征，对用户、电信业务提供者、投资者和政府都有不同程度的影响。在介绍电信市场开放显著特征的基础上，主要介绍APEC主要经济实体在电信市场开放条件下所做出的一些承诺、外商投资的条件及其诸如市场竞争格局的变化等相应的市场表现。     

CDMA/FH频率合成器的实现

本文介绍一种跳频频率合成器 ,并对它进行了较详细的分析。该频率合成器将国外新出现的直接数字频率合成器技术和传统的锁相环技术有机地结合起来 ,具有结构简单、频率分辨率高和频率转换速度快等特点。     

滨海地区圈层模式的规划应用——以大连市北海湾规划为例

随着我国规划行业的快速发展,圈层模式被广泛应用。圈层模式是通过中心对周边地区产生影响——吸引相关功能集聚,并由中心向外围呈规则状、向心式和层次性扩散的发展模式。大连市北海湾规划探讨了圈层模式在滨海地区规划中的实践及应用,提出了"中心选择—半径评估—圈层划分—圈层规划"的规划手法,以便更好地指导该类地区的用地布局、滨水空间的塑造和环境品质的提升,为类似地区的规划设计和开发建设提供参考。     

论平行流蒸发器分流板位置变化对性能的影响

针对平行流蒸发器中分流板位置、孔径大小对平行流蒸发器性能影响进行分析,并得出结论,合理的分流板位置及大小对蒸发器性能及表面温度分布均匀状态有相当大的改善.     

Bridging digital divide: Efforts in India

The fruits of Information Technology sector such as the Internet blue chips, online shopping and nanosecond email have failed to cure century-old malaises like illiteracy, poverty and unemployment in India. The paper presents few facts about digital divide based on global and the USA perspective, its definition and types as global, regional and national, and societal implications. It highlights India in the context of digital divide by discussing its infrastructural bottleneck that includes electricity, IT penetration, teledensity and Internet industry, and its enabling policies to transform India as a knowledge society. It discusses various technology options for connectivity, viz. terrestrial wireless, satellite, wireline, etc. and presents snap shots of select successful projects that made an impact in helping to bridge digital divide in India, viz. passenger reservation system, Akashganga, Akshaya e-centres, Bhoomi, etc. It concludes that creation of Information and Communication Technologies infrastructure and content are the core methodologies, and a national agenda on a C-8 thrust towards: connectivity provision, content creation, capacity augmentation, core technologies creation and exploitation, cost reduction, competence building, community participation and commitment to the deprived and disadvantaged would definitely help in bridging digital divide.     

消除数字差距，推动普遍服务

“数字差距”不是个别国家，个别地区的独有现象，而是一个全球性的问题，缩小全球范围内的“数字差距”，应当建立在对旧的世界经济秩序革新的基础上，改革开放20多年来，中国电信业已由制约经济发展的“瓶颈”，发展成为带动经济增长的先导产业，支柱产业和战略产业，电信服务普及率也达到了一个空前的高度，但由于各方面的原因，中国东西部之间还存在较大的差距，偏远地区电信发展也还面临很多困难，为此，中国政府和企业还有很多工作要做。     

光链路损耗参数的定义和分光比的计算

说明光链路中器件“损耗”的定义,并据此定义推导分析“光纤损耗”、“分光损耗”的定义和计算式,以及光链路所需光发射机输出光功率的计算式。     

固定延迟的流水线双精度浮点除法电路

除运算采用泰勒级数展开,用5级流水线结构,查找表大小缩小为2.5kB,并获得固定延迟.FPGA综合结果表明,与其他设计电路相比,面积减小了33%.     

Increasing inequalities in what we do online: A longitudinal cross sectional analysis of Internet activities among the Dutch population (2010 to 2013) over gender,age, education,and income

We investigate types of Internet activities among a representative sample of the Dutch population from 2010 to 2013. We examined usage patterns of seven types of Internet activities (i.e., information, news, personal development, commercial transaction, social interaction, leisure, and gaming) and related these patterns with gender, age, education, and income. Activities related to news, personal development, commercial transaction, and social interaction increased in popularity. For most capital enhancing activities, men, younger people, higher educated people, and people with higher than average incomes were prominent. These observations, however, are subject to change. The Internet seems to provide increasingly more capital-enhancing opportunities for those with higher education and income, which would accordingly reinforce their already strong positions in society.     

Potential pitfalls of smart city development: A study on parking mobile applications (apps) in Hong Kong

Smart cities are built upon information and communication technologies (ICTs) to enable a broad range of advanced services. Through a comprehensive literature review, this study identified four pitfalls brought by the pervasive application of ICT, including information insecurity, privacy leakage, information islands, and digital divide. Therefore, a questionnaire survey together with 27 interviews was conducted in Hong Kong to investigate how the public perceived these pitfalls within the context of mobile apps providing real-time parking information which form a major part of smart mobility. System insecurity and privacy leakage were found to arouse worries among the app-users while their awareness of protecting personal data was found to have room for improvement. Islands of real-time parking information occur as a result of the lack of collaboration among private carpark operators. Digital divide existed widely among the disadvantaged groups and the problem cannot be solved by mere provision of ICT facilities. Overall, technologies alone cannot make a city smart or smarter. It is the suitable way in which ICTs are used to serve all citizens that matters.