数据仓库中集成器端的两版本不加锁算法的研究

在目前的数据仓库中为保证数据的一致性通常采用不加锁算法,而当前所使用最普遍的算法又存在着用户和维护事务不能在同一时间工作的弊端,本文就此问题提出了两版本不加锁算法。它是一个典型的多版本并行控制算法,特别适合在一个数据仓库环境中进行视图维护。本算法能够很好地解决用户会话和维护事务不同步的问题,能使用户24小时使用数据仓库并减少系统开销。     

数据库安全与保密技术

介绍数据库安全保密的重要意义和评估安全数据库的相关标准,讨论保证数据库安全的技术方法和管理措施, 并就MS SQL安全问题提供解决方案．     

Relational Maintenance in the Digital Age: Implicit Rules and Multiple Modalities

The present project utilized a mixed methods approach to examine how individuals use CMC to maintain proximal relationships. Nine different communication channels were examined concurrently to elucidate how frequently mediated relational maintenance is used and to examine what participants reported in terms of motives for use and avoidance of particular channels. Findings indicate that participants in proximal relationships are hyper-aware of the amount of intimacy implied by a particular communication channel and strategically engage channels to suit their needs. We propose that relationships will be difficult to maintain if people violate the implicit rules that appear to govern channel selection.     

Novell3.12网络无盘工作站的安装、管理与维护

目前有不少刊物和杂志上都有介绍Novell网络的安装、维护与管理的篇章，但都是侧重于讨论某一方面，而缺乏了系统性，本人根据多年的实践经验，从实用的角度来探讨Novell网络的安装、管理与维护。     

龙场九驿文化线路遗产保护——黔西象祠古建筑修缮与保护

驿道文化线路是具有物质与非物质文化双重身份的文化遗产,关于它的保护,目前在中国是一个全新的概念。龙场九驿物质文化遗产包含了传统的古道、桥梁、渡口、关隘、码头、驿站、会馆、书院、寺庙、牌坊、古井等不可移动的古建筑遗址。贵州黔西象祠古建筑是其中重要的文化遗存,由于受自然和人为的破坏,加上保护力度不足等,目前象祠古建筑呈现出不同程度的损坏。因此加大对龙场九驿沿途古建筑抢救性修缮和保护是文物主管部门、各级政府无旁贷的职责。     

Associations among Attachment Style,Maintenance Strategies,and Relational Quality across Cultures

Previous research has suggested that attachment style is an indicator of relationship behavior and perception universally across cultures; however, research comparing the effect of attachment style on relational maintenance in culturally distinct societies is still non-existent. The present study investigated the effect of the secure or insecure attachment style on commonly used relational maintenance strategies and desired relational features in three geographically distant cultures: the US mainland, Hawaii, and South Korea. Results indicated that as predicted, regardless of culture, secure attachment style was associated with higher ratings of relationship quality (trust, commitment, liking, control mutuality, and satisfaction) and the self- and partner-perceived uses of Stafford and Canary's (1991 Stafford, L and Canary, DJ. 1991. Maintenance strategies and romantic relationship type, gender and relational characteristics. Journal of Social and Personal Relationships, 8: 217–242. [Crossref], [Web of Science ®] , [Google Scholar]) relationship maintenance strategies. Culture did not change the effect of attachment style on the dependent factors; however, culture, as an independent factor, contributed to the variance in the self-/partner-perceived maintenance strategies and relationship quality.     

中国在非洲海外利益维护问题初探

中国在非洲的利益一直都是中国对外政策与外交战略的重点,中国在非利益从结构上可分为经济利益、政治利益、安全利益及文化利益,中非交往的不同阶段所体现的利益重点不同,即中国在非利益具有长期性、成长性和阶段性的特征。随着中非交往的不断深化,中国在非洲涉及的利益无论从广度还是深度来说都扩大了,并且在扩大的过程中也随之出现了一系列的矛盾。非洲对于中国和平崛起具有重要的意义,因此维护、协调、巩固和发展中国在非的利益不仅是维护中国国家利益的需要,也是中非友好交往的内在要求。     

Peripheral Ritualized Practices—Threads Connecting Decorations to the Cloak of Identity

This is an ethnographic study which investigates the practices of language maintenance and ethnic identity affiliation for immigrant/migrant Nepalese families with primary to middle school children in the United Kingdom. The study presents a comparative case study analysis of three Nepalese immigrant/migrant families. Participant observation, semi-structured interviews, and historical narrative interview were used. The study investigated prior exposure to home country, ethnic, cultural, and social literacy practices that occurred in various contexts during a nine-month period. This analysis revealed a phenomenon I termed peripheral ritualized practices. Exposure to peripheral ritualized practices over time creates positive changes in attitudes toward multilingualism and diversity.     

汽车空调维护使用注意事项

本文就汽车空调在使用、日常维护、保养、维修及非使用季节的养护中的一些常见问题进行了探讨。     

通信网维护分析

在市场经济的发展下,人们的物质文化生活水平逐渐提高,用户对宽带网络的要求也随着市场经济的发展日益提高。随着电信行业FTTH用户数量的不断增长,10M、20M宽带的普及,百兆宽带的日益临近。越来越多的用户对网络质量和维护效率提出了更高的要求。各个电信运营商,也把故障率和中断时间作为一个重要的考核指标。因此,对通信网故障和中断率分析,是电信运营商摸家底,提高服务水平,满足客服要求的重要手段。