飞思卡尔最新推出用于智能电表篡改防护的Xtrinsic传感器

飞思卡尔半导体公司推出新的微机电系统(MEMS)加速计,提供超低功耗和简单的即插即用方法来进行倾斜阈值检测,用于智能电表应用的物理篡改防护。飞思卡尔的Xtrinsic MMA8491Q节能高效加速计将产品组合扩展至工业市场,该市场需要宽引脚间距、可以目测检查的引线和较长的产品生命周期。飞思卡尔副总裁兼传感器与致动器解决方案事业部     

Security through diversity: moving from rhetoric to practice

In response to a range of contemporary urban water challenges, there is an increasingly urgent need to change the way water is used in our cities. In Australia, the 'Security through Diversity' policy has been introduced in a number of cities to help facilitate a shift towards sustainable urban water management. This qualitative case study research investigated the interpretation and implementation of this radically different urban water policy approach across the case study cities of Perth and Melbourne. To focus the research and allow for more reliable comparative analysis across the cities, the introduction of desalination and permanent water saving rules as new initiatives in these cities were of particular interest. The research results are drawn from a synthesis of over 65 semi-structured interviews with senior urban water practitioners in the case study cities, and a content analysis of key policy and guidance documents, as well as organizational literature where available. The key finding of this research was that because of an entrenched technological paradigm, and the difficulty in breaking this pattern of lock-in, practitioners are currently interpreting and implementing Security through Diversity in a way that does not fully realise the potential of this strategy. More specifically the interview results revealed that the urban water practitioner community believed that the introduction of seawater desalination would discharge their city's responsibility for achieving Security through Diversity and that demand management initiatives, while nice, are not essential to this policy position. Interestingly, despite context evidence to the contrary, the practitioners believed supply and demand planning to be an integrated practice within their city. The paper concludes by offering some recommendations to facilitate a more comprehensive implementation of Security through Diversity and outlines areas for possible future research.     

Working towards sustainable urban water management: the vulnerability blind spot

The unprecedented water scarcity in Australia coincides with the adoption of a new urban water rhetoric. The 'Security through Diversity' strategy has been adopted in a number of Australian cities as a new and innovative approach to urban water management. Although this strategy offers a more holistic approach to urban water management, in practice, the Security through Diversity strategy is largely being interpreted and implemented in a way that maintains the historical dependence on large scale, centralised water infrastructure and therefore perpetuates existing urban water vulnerabilities. This research explores the implementation of Security through Diversity as the new water scarcity response strategy in the cities of Perth and Melbourne. Through a qualitative study with over sixty-five urban water practitioners, the results reveal that the practitioners have absorbed the new Security through Diversity language whilst maintaining the existing problem and solution framework for urban water management. This can be explained in terms of an entrenched technological path dependency and cognitive lock-in that is preventing practitioners from more comprehensively engaging with the complexities of the Security through Diversity strategy, which is ultimately perpetuating the existing vulnerability of our cities. This paper suggests that greater engagement with the underlying purpose of the security though diversity strategy is a necessary first step to overcome the constraints of the traditional technological paradigm and more effectively reduce the continued vulnerability of Australian cities.     

Sensitivity analysis for the SimpleTreat model to simulate fate of chemicals in sewage treatment plants

SimpleTreat 3.1 predicts the distribution and elimination of chemicals by sewage treatment. The model is used as the default calculation in EUSES 2.0 to estimate exposure concentration in the receiving water, soil and air. A sensitivity analysis was performed to rank input parameters according to their influence on model predictions. Triclosan was selected for the base case. The sewage flow, degradation rates and parameters describing the raw sewage were shown to be the most sensitive inputs. The pH and dissociation constant are very sensitive parameters when working with ionisable compounds. Variation in certain input parameters was propagated through the model to yield greater variation in output parameters with a maximum ratio of 4.0. SimpleTreat 3.1 is a steady state model describing a highly non-steady system. A large variability in the most sensitive parameters is expected within a single sewage plant and parameters should therefore be selected to cover this variability.     

水利建设与管理工作重点突出成效显著

2006年,党中央、国务院作出用3年时间完成全国6240座大中型和重点小型病险水库除险加固目标任务的重大部署。水利部举全部之力、全系统之力,采取各种有效措施,坚决打好这场硬仗。一是加强组织领导,建立工作机制。水利部及时成立病险水库除险加固工作领导小组     

潮州供水枢纽发电机有功功率无法增加故障分析与处理

该文主要对灯泡贯流式水轮机组在实际运行过程中发生的故障进行分析、查找原因,结合分析结果和现场实际情况进行处理,并提出了运行中的注意事项.     

流程安全

业务流程常常面临一系列与信任或不信任相关的问题。这些问题构成了安全方面的主题,包括认证参与者的证书、检查参与者是否被授权访问特殊的信息或服务,以及在必要时对信息进行加密以防止被未授权参与者查看。当参与者必须确认他们正在与谁进行交易,或某个活动必须对未授权当事人保密的时候,安全就成为了一个问题。     

SOA顶层系统架构

确定架构的第一步,就是针对每个正在考虑的业务流程,定义流程中的主要系统参与者。现在的任务就是确定有哪些相关的组件,并确定每个组件将扮演的角色。     

办公自动化正进入MOHO新时代

<正>新年献词2010年过去了,这意味着21世纪的第一个十年结束了。在过去的这十年里,我国信息化建设有了飞速的发展。我国网民已达4.46亿人,互联网普及率33.4%,我国手机用户已超过8.5亿,3G用户总数已达4000多万。智能手机已日益受到用户的青睐,移动互联网已逐步形成。2010年是三网融合的破冰之年。物联网和云计算也已进入应用。