开放标准LSB3.0的深入剖析

LSB标准是最重要的开放标准之一。文中介绍了LSB3.0标准规范;基于LSB3.0的发行版组件;构建LSB3.0认证的应用程序;LSB3.0的标准认证,并以实际的例子详细讲解了如何使用LSB3.0的开发环境和测试工具。最后对LSB标准的前景作了展望。     

基于EPA的功能安全通信的认证

介绍了安全相关系统在实际应用中的需求，并研究了安全相关系统在设计、开发、应用、维护等过程中应遵循的标准。说明了安全相关系统的功能安全认证流程，并给出了安全相关系统的V模式开发模型。     

基于Web分布式信息系统的设计

通过对基于主机和客户机／服务器应用程序的分析，结合企业实际情况，采用新的设计技术，提出新的设计思想，重新设计基于Web的企业分布式共享信息系统，该系统可在Internet,Intranet上稳定地运行和通讯，它的运用提高了企业的工作效率，对同行业信息系统的设计具有参考价值。     

PKI体系结构与技术分析

随着网络技术的发展 ,网络的安全能否得到保障是人们最关心的问题。PKI是网络安全保障的最佳体系结构 ,也是电子商务安全实现的基本条件。对 PKI的概念、组成进行了阐述 ,探讨了实现 PKI的相关技术对称密钥体制和非对称密钥体制 ,分析了 PKI算法的安全性     

公开密钥加密体系和数字签名技术的研究

为了保障网络中数据通信的安全、网上用户身份的识别和电子商务、电子政务中网上交易的安全 ,介绍了公开密钥加密体系 (PKI)和数字证书 (DC) ,以及RSA算法实现数字签名和多人签名技术的实施 ,并介绍了多种有效的数字签名方法 ,包括一对一签名、多重数字签名     

基于多项式分享的分布式认证方案

针对门限加密系统基于附加和密钥分享方式的分布式认证方案存在的密钥管理复杂、计算耗时和强键性差等不足，提出基于Shamir多项式分享方式的一种新的分布式认证方案．分析方案的可用性和先进性，给出基于多项式分享方式的认证模型和具有容错能力的密钥更新同步算法，描述了密钥生成、分发以及认证签名协议的过程．建立以管理员和共享服务为主要构成的有限状态机的状态转换模型，介绍了超时处理和失败机制．该方案不仅具有入侵容错、均衡负载等功能，而且具有灵活的扩充性、很好的强健性和安全性．     

矿用产品安标现场评审前的注意事项

通过介绍安标现场评审的概念、流程、依据及准则,对安标评审13项准则和煤矿及非煤矿山生产企业需注意问题进行具体分析,使生产企业更深入的了解安标现场评审准则及评审前需注意的问题,做好充分的评审准备工作,从而顺利的通过安标现场评审。     

印度锅规对锅炉材料认证要求解析

本文主要介绍印度锅规对受压部件材料的认证检验要求。     

Value creation for tenants in environmentally certified buildings

Previous research suggests that environmental certification (EC) affects rental rates in non-residential buildings, but there is still little understanding of how tenants differentiate such buildings from those without EC. This paper examines whether and how tenants perceive value creation in EC premises in Sweden. The findings (based on 29 questionnaire responses and 14 interviews with tenants in EC buildings) inform landlords and tenants on the development of EC strategies for improved organizational outcomes. EC creates value for tenants principally as support for their environmental management and reporting (e.g., low energy demand). EC is important for tenants internally, raising employee environmental awareness and improving employee attraction and retention. Tenants are generally positive about employee morale, indoor environmental quality (IEQ) and rental costs. However, it is not clear if such perceptions are dependent on features of modern premises in general, such as new fixtures, fittings and furnishings, and space-efficiency or from some EC-related feature. Tenants do not identify health or productivity increase in their EC premises. Findings suggest that the research focus should be shifted from investigating health and productivity increases through IEQ improvement to understanding the motivational improvement through value alignment with employees through EC.     

Assessment of Portuguese thermal building legislation in an energetic and environmental perspective

The aim of this study is to assess the consistency of Portuguese thermal building legislation in terms of energy and environmental performance.To illustrate this, a case study has been carried out for different scenarios of a dwelling home located in an extreme climate zone (I3, V1 north) in Portugal with a T3 typology: four occupants and net floor area of 150 m², modelled according to Regulation Thermal Performance Characteristics of Buildings and a Life Cycle Assessment approach.The results show that the Portuguese thermal building legislation can be considered consistent in terms of energy efficiency and environmental performance if we take the damage categories into account - “human health” or “ecosystem quality” or the impact category - “emission into air”. It cannot be considered consistent if we take the damage category into account - “resources” or the impact category - “CO₂ eq” (equivalent carbon dioxide emissions)/“climate change”/“global warming”.