3G移动通信系统的安全隐患与防范措施

移动支付、移动办公等3G新型业务的涌现,在为用户提供高效便捷服务的同时,也使3G移动通信系统面临新的信息安全隐患。3G移动通信系统的安全问题已成为个人和企业用户高度关注的焦点。从多方面分析了3G移动通信系统存在的安全问题,提出了增强3G移动通信系统安全的技术保障措施。     

（m,n,k,1）偶图G—设计（K≤4）

本文归划讨论了当图G是点不多于4的小图时,(m,n,k,1)偶图G-设计及可分解的（m,n,k,1）偶图G-设计存在的充分必要条件。     

基于云计算的城乡教育资源共享系统研究

文章在分析了云计算及其技术优势的基础上,研究设计了基于云计算的城乡教育资源共享系统,并详细讨论了云计算服务层的主要实现方法和系统中移动Agent的设计。该系统能充分地将城乡各地的优质教育资源集中起来,并由云服务端自动管理,最大限度地实现资源共享,将有助于解决我国城乡教育资源分布不均和资源共享程度低等问题,从而提高我国教育信息化的水平。另外,系统引入了智能分词技术和移动Agent技术,使系统更具有智能性,为用户提供个性化服务,动态调整并呈现教育资源检索内容,提高了系统的易用性和交互性。     

移动助手在防汛中的应用及实现

本文介绍了一种基于智能移动终端、GPS、GIS和3G技术的水利防汛移动助手系统。该系统使用外置蓝牙GPS或内置GPS装置获取当前定位信息,并在智能移动终端中应用GIS系统进行地图标绘,通过移动传输网络将位置和现场相关数据传送至服务器,服务器对数据进行分析与存储,再将指挥指令和业务数据回传至智能移动终端,从而实现移动终端和服务器数据的实时交互。智能移动终端作为数据采集器可以进行汛情和工情信息的及时采集,服务器则对终端的位置和回传数据进行接收、查看、分析,为辅助决策提供可靠的数据依据。     

超重力旋转填充床的机理及其应用

本文通过大量的资料对超重力旋转填充床的基本机理、主要特点和目前在工业中的应用作了阐述。认为这项技术必将成为21世纪经济建设众多领域中普遍使用并能带来巨大经济效益的一项技术。     

National differences in personality: Greece and England

A comparative study was carried out on Greek and English samples, using the Eysenck Personality Questionnaire. Factor analysis of intercorrelations between items showed that very similar factors emerged in the two national groups, suggesting that the structure of personality in both was sufficiently similar to carry out comparative studies. External validation supported this conclusion; normal, schizophrenic, neurotic, and criminal groups showed patterns of scores similar to those previously observed in England. In both countries it was found that men scored more highly on P and E, women on N and L. Differences in loadings were found on certain items, and these were shown to be explicable in terms of known national differences in habits and mores.     

The effects of racial self-esteem on the personal self-esteem of black youth

Much debate has been generated in the literature concerning reasons for positive black self-esteem findings. Although some contradiction is found in the literature, findings on black self-esteem suggest a shift to more positive self-images among blacks during the 1970s. This study investigates the relationship between personal and racial self-esteem. These data support the theoretical linkage of racial and personal self-esteem. A positive correlation was found between personal self-esteem and racial self-esteem for black youth in this study.     

Black self-concept: An individual/collective analysis

The study of the self-concept of African-Americans has been approached in two major ways: studies have sought either to measure personal self-concept, excluding attitudes and feelings towards race, or they have sought to measure racial self-concept excluding attitudes toward the personal self. Failure to integrate the two approaches has proven to be a critical hindrance to the development of a theoretical framework for systematic analysis of the self-concept of African-Americans, which can account for attitudes towards the personal self and the racial self. Offered is a framework for the analysis individual/collective self-concept of African-Americans. The individual/collective self concept is comprised of two inseparable but distinguishable components: the experience of the unique individual (the I) and the accumulated experiences of the racial group (the We). It is characterized by the personal affirmation of, and the identification with one's own personal experiences and the collective experiences of one's racial group. Any imposed disassociation of the components by individuals or theoretical approaches is viewed as problematic.     

在Apple上架构强大的视频特效系统

随着Apple在计算机与数字视频技术上的长足进步,架构在Apple上的视频特效系统正在逐步被业界所接收并渐渐开始大规模占据广播影视行业高、中端市场.本文介绍了搭建Apple视频特效系统的软、硬件组成及网络结构优势.