智能型数字校园网的探讨

随着计算机网络技术的发展,数字化校园网的建设已经进入成熟的后期阶段,但是纵观现有的各高校的数字化校园网络,其智能型的数字校园网还处于初级发展阶段．因此。通过基于智能型的数字校园网从概念、实现目标、规划与设计等方面进行了初步探讨研究．图1,参5．     

全数字化环境监测系统的研制

研究了基于B/S和C/S混合模式的全数字化环境监测系统的拓扑网络结构、逻辑结构和系列关键技术。监测系统构建了基于信号获取层、数据采集层、片区管理层和中心管理层的数据流动模型,用户客户端群由片区客户端、中心客户端和移动客户端构成,通过Interanet和Internet构建了可视化环境监控平台。提出了基于图像处理的方法和支持向量机(support vector machine,SVM)的工业烟尘浓度和排放量的识别算法。运行实际情况表明,系统具有实时可视化监控、准确浓度排放数据、终端用户使用简单可靠、系统可扩容性好等特点。该系统可为其他大型企业的环境监测提供参考。     

The Circulation of Climate Change Denial Online: Rhetorical and Networking Strategies on Facebook

This study uses a topical, rhetorical approach to analyze how climate change denial circulates online through the 25 most popular posts on the Watts Up With That and the Global Warming Policy Forum Facebook pages. These groups adopt the appearance of credibility through reposting and hyperlinking, thus establishing a supportive, networked space among other skeptical sites, while distancing readers from original sources of scientific information. Visitors use a variety of rhetorical strategies to echo posts’ main themes and to discredit alternative viewpoints. Differences between the topoi and rhetorical strategies of WUWT and the GWPF show that the climate change denial community is multifaceted and makes use of social media affordances to craft the appearance of legitimacy. This project contributes to our knowledge of how scientific information is co-opted, manipulated, and circulated in online spaces and how online features shape environmental discourse practices.     

An analytical framework for strategic delta planning: negotiating consent for long-term sustainable delta development

Sectoral planning on water, agriculture and urban development has not been able to prevent increased flood risks and environmental degradation in many deltas. Governments conceive strategic delta planning as a promising planning approach and develop strategic delta plans. Such plans are linked to actions and means for implementation in the short-term, in line with long-term strategic choices. This paper introduces an analytical framework that focuses on the role of actors, innovative solutions and participatory planning tools in negotiating consent for the strategic choices in a delta plan and its implementation. Cases of Bangladesh, the Netherlands and Vietnam are discussed as a plausibility probe to explore the framework's potential. The probe reveals that the framework is promising to explain the process and outcomes of strategic delta planning in urbanizing deltas. The paper ends with an initial research agenda to stimulate research and discussion on this new delta planning approach.     

碳减排目标的实现机制比较与选择——基于数量型与价格型减排工具的模拟

基于2012年微观层面的社会核算矩阵(SAM)表,本文构建动态可计算的一般均衡(CGE)模型,分别设计碳交易和碳税情景加入该模型,模拟中国2012—2030年的宏观经济效应和部门结构效应。研究结果表明:就宏观效应来看,2030年碳交易和碳税情景的碳强度分别比基准情景下降了24.24%和26.487%,分别完成碳减排目标的55.052%和59.349%;碳交易情景下消费、投资、出口和进口出现较大波动,碳税情景下这些指标小幅上涨。就部门经济效应来看,能源部门受政策情景影响最大,其次是制造业部门,其他部门受到的影响较小;碳交易情景对各部门增加值有抑制作用,并对原油和天然气部门的消费产生较大冲击。就部门减排效应来看,制造业部门的减排效应较显著;碳税情景的减排效应优于碳交易情景。总体而言,单一实施碳交易或碳税政策,不能完全实现碳减排目标,碳税政策相对温和,可以考虑两种减排政策配合实施,以减缓对经济系统冲击,并实现碳减排目标。     

Human–wildlife coexistence in a changing world

Human–wildlife conflict (HWC) is a key topic in conservation and agricultural research. Decision makers need evidence-based information to design sustainable management plans and policy instruments. However, providing objective decision support can be challenging because realities and perceptions of human–wildlife interactions vary widely between and within rural, urban, and peri-urban areas. Land users who incur costs through wildlife argue that wildlife-related losses should be compensated and that prevention should be subsidized. Supporters of human–wildlife coexistence policies, such as urban-dwelling people, may not face threats to their livelihoods from wildlife. Such spatial heterogeneity in the cost and benefits of living with wildlife is germane in most contemporary societies. This Special Section features contributions on wildlife-induced damages that range from human perspectives (land use, psychology, governance, local attitudes and perceptions, costs and benefits, and HWC and coexistence theory) to ecological perspectives (animal behavior). Building on current literature and articles in this section, we developed a conceptual model to help frame HWC and coexistence dimensions. The framework can be used to determine damage prevention implementation levels and approaches to HWC resolution. Our synthesis revealed that inter- and transdisciplinary approaches and multilevel governance approaches can help stakeholders and institutions implement sustainable management strategies that promote human–wildlife coexistence.     

基于GIS的城市SEE信息查询系统研究

基于数字城市的理念,将信息技术和社会经济环境(SEE)问题结合起来,将GIS与网络技术相结合,基于GIS空间分析功能中的空间查询和量算功能,提出了城市SEE信息查询系统的框架,实现了城市生态环境及可持续发展基础信息的整理。     

IEC61850通讯规约在500kV芝堰变电站的应用

随着用户对电能可靠性和质量要求的不断提升,智能电网、互动电网等技术逐步兴起。数字化变电站是智能电网的物理基础,国际电工委员会发布的IEC61850标准为数字化变电站技术奠定了理论基础。本文探讨了IEC61850规约在智能化一次设备以及数字化通信技术的发展及在500KV芝堰变电站的具体应用。     

医院低碳经济管理路径探索研究

在建设两型社会的大背景下,我院积极探索低碳经济管理途径,通过实施"四权分离物品管理机制"、全成本核算、打造数字化医院和低碳医疗等手段初步实现了低碳经济管理,并取得了极大的经济效益和社会效益。     

环境安全问题的工业设计观

从历史观和哲学观探讨环境安全问题的成因,将环境安全问题与工具的发明创造联系在一起,论述了环境安全问题就是工具的缺陷恶化了环境与人以及人类之间的和谐关系。环境安全问题不再是简单地针对环境的治理或对人的管理问题,而应该从工具的产生过程中寻找根本性的解决方案。工具的功能和性能设计,仅仅是完成工具设计的初步阶段。在投入社会之前,必须完成工具的人机环境设计与评估,用于平衡或消除工具所蕴含的潜在危险因素。因此,要解决环境安全问题,必须突破狭隘理念,以环境安全作为核心价值进行工业设计,创造与使用符合人机环境因素的优质工具。