局域网故障排除点滴

网络故障排除是局域网维护的难点和重点，本文分析了笔者在局域网维护工作中遇到的几个故障的排除过程，并根据几年网络维护的经验给出了几点体会。     

Out of Sight, (Not Yet) Out of Mind: The Impact of Tie Strength on Direct Interaction and Social Surveillance Among Geographically Close and Long-Distance Facebook Friends

Social networking sites are considered a valuable resource to maintain existing friendships even over considerable distances. The present study emphasizes tie strength as a crucial determinant for the use of interactive and passive features among 302 active Facebook users and friends of different relational closeness (close friends vs. casual friends vs. acquaintances) as well as a moderator for the impact of physical distance. As expected, tie strength affected direct interaction linearly, whereas social surveillance followed a quadratic trend. Furthermore, moderation analyses revealed less frequent direct interaction between close friends and stronger surveillance of casual friends’ profiles as physical distance increases. These results indicate different functions in relationship maintenance for both behaviors as direct interaction aims at nurturing current relationships, while surveillance serves as a catalyst for promising future communications. As a consequence, physical distance influences direct interaction adversely due to emerging constraints but also contains informational value encouraging information-seeking behaviors.     

The Mitigating Effects of Intergroup Contact on Negative Stereotypes,Perceived Threats,and Harmful Discriminatory Behavior Toward Asian Americans

This study examined the ameliorating effects of intergroup contact with Asian Americans on negative stereotypes, perceived threats, and harmful discriminatory behaviors toward them. The results of multivariate regression analyses indicated that intergroup contact with Asian Americans adversely predicted negative stereotypes (i.e., excessive competence and deficient sociability), perceived realistic and symbolic threats, and active and passive harmful discriminatory behaviors toward them. The findings highlighted the utmost importance of intergroup contact in improving intergroup attitudes and behaviors.     

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。     

Do you have confidence in how your rolling stock has been maintained? A blockchain-led knowledge-sharing platform for building trust between stakeholders

This study explores the potential of blockchain technology in enhancing trust among the stakeholders responsible for the maintenance of rolling stock. Although the technology has been widely successful in the financial sector, it is still novel in the maintenance field. Given the customized nature of maintenance processes, it is unclear if a suitable consensus protocol can be identified that can enhance trust among stakeholders. This problem is investigated through the lens of the Design Science Research Methodology. First, the theoretical background of blockchain technology and its role in enhancing trust are explained, followed by the analysis of a current case at a Railway company to test the proof of concept. A business network archive is developed for the maintenance management of the sliding step of the train door system. The archive encompasses the business logic and transactional data required to enhance trust among stakeholders in the quality of performed maintenance. The developed archive is deployed on Hyperledger Fabric and the effectiveness of the solution is evaluated through a survey. The results show that the developed business network, deployed on a customized Hyperledger Fabric consensus protocol, enhanced trust among the stakeholders involved.