浅谈房地产开发建设中的环境保护

在近几年的房地产开发建设过程中,环境保护越来越受到人们的重视。本文从法律角度出发,对房地产开发建设项目的法律法规、建设过程中的污染防治,交付使用后装饰装修涉及的环境保护等问题进行了探讨。     

关于费马大定理

本文通过对费马提出的费马大定理的证明过程的叙述,拟向人们展示数学的一种魅力,这种魅力告诉人们一个命题的偶然发现会吸引很多人为之奋斗,在奋斗的过程中会产生许许多多的令人惊奇的成就。     

生态文明建设呼唤整体性生态意识

正生态文明建设既是生态意识和生态实践并重的过程,更是生态意识引导生态实践的过程。当前人们的生态意识普遍提高,但更多是偏颇性生态意识,缺少了整体性生态意识视野。生态文明是继工业文明之后的新型文明模式,其宗旨就是人与自然和谐共生。现阶段,生态文明建设既是生态意识和生态实践并重的过程,更是生态意识引导生态实践的过程。生态意识是人们对于自然生态价值的确认和生态系统整体、稳定、美丽的认同。目前,随着生态文明时代的来临,人们的生态意识普遍提高,但值得注意的是,这种生态意     

从少数民族儿童教育看教育均等化

在智障教育的不断改进与完善的发展过程中,随着人们对智障人士教育问题的关注程度逐渐加大,与此同时也存在一些问题。     

建设过程中的环境问题及对策

建设过程中引起的环境问题严重影响人们的正常生活,必须寻找对策,综合治理,解决对环境造成的不良影响。     

各路雾霾“神器”点点评

正2013年,人们经历了对雾霾从认识到熟谙的过程,如何减少雾霾对于人体的危害,网民各显神通。于是,自制口罩、做雾霾操、吃猪血黑木耳、香烟过滤嘴做鼻塞……各种防雾霾"神办法"和"神器"出现。虽然众多"神办法""神器"大多已被证实对于减轻雾霾危害并无太大效果,但反映出人们对于雾霾危害的担忧以及寻求保护的心态。     

百姓是创模最大的受益者

记者在风景如画的黄山市市政府广场随机了采访部分晨练市民,人们几乎众口一词纷纷感慨地说:“对老百姓来说,我们真的不在乎创模最终结果是啥,但这个过程使市区的街容街貌发生了     

废弃物物流变废为宝促生态可持续发展

<正>随着科学技术的发展、生产技术和人民生活水平的提高,人们的需求水平越来越高:既要质量好又要款式新。于是被人们淘汰、丢弃的物资日益增多。这些产生于生产和消费过程中的物质,由于变质、损坏,或使用寿命终结而失去了使用价值。它们中有生产过程的边角余料、废渣废水以及未能形成合格产品而不具有使用价值的物质;有流通过     

用紫露草微核技术监测饮用水

随着科学的发展,人们不仅关心饮用水的一般水质问题,而且对其慢性的潜在性影响也极为重视。众所周知,饮用水在加氯消毒处理的过程中,游离余氯与水中有机物反应生成的三卤甲烷对人体健康具有潜在危害,有些国家为此还制定了自来     

燃煤烟气多环芳烃的生成及控制技术

燃煤产生的污染物中含有多环芳烃的有机污染物,它们对生态环境的潜在危害使得对其生成迁移及控制规律的研究受到人们日益广泛的关注,多环芳烃的排放控制已经成为一个新热点,也越来越在环保领域里得到高度重视。文章分析了燃煤过程多环芳烃生成的内在影响因素和外在影响因素,讨论了湿法除尘器和电除尘器对多环芳烃的脱除效果。     

A case study of resources management planning with multiple objectives and projects

Each National Park Service unit in the United States produces a resources management plan (RMP) every four years or less. The plans commit budgets and personnel to specific projects for four years, but they are prepared with little quantitative and analytical rigor and without formal decision-making tools. We have previously described a multiple objective planning process for inventory and monitoring programs (Schmoldt and others 1994). To test the applicability of that process for the more general needs of resources management planning, we conducted an exercise on the Olympic National Park (NP) in Washington State, USA. Eight projects were selected as typical of those considered in RMPs and five members of the Olympic NP staff used the analytic hierarchy process (AHP) to prioritize the eight projects with respect to their implicit management objectives. By altering management priorities for the park, three scenarios were generated. All three contained some similarities in rankings for the eight projects, as well as some differences. Mathematical allocations of money and people differed among these scenarios and differed substantially from what the actual 1990 Olympic NP RMP contains. Combining subjective priority measures with budget dollars and personnel time into an objective function creates a subjective economic metric for comparing different RMP’s. By applying this planning procedure, actual expenditures of budget and personnel in Olympic NP can agree more closely with the staff’s management objectives for the park.     

HALT试验技术的研究

高加速寿命应力试验（HALT）,是一种通过施加阶梯强化应力于试品,达到快速发现产品潜在缺陷,操作设计边际及结构强度极限的试验方法,主要应用于产品研发设计阶段。由于该方法效果明显,目前已越来越多的电子电气产品制造商认可并推广使用,成为研发设计工程师提高产品可靠性的重要试验手段。本文简要介绍HALT试验的目的,并结合实际,探讨了HALT试验设备的关键性能指标。另外,基于日常实践经验,重点分析和讨论了HALT试验过程中应该关注的一些技术处置措施,从而帮助测试人员正确执行HALT。     

Environmental leadership plus total quality management equals continuous improvement

Xerox was one of the first U.S. companies to discover that environmentally sound practices not only result in good community relations, but also often more than pay for themselves. This case study describes the application of the quality process to environmental management at Xerox and shows how a focus on prevention, employee involvement, teamwork, and the use of quality principles and tools can improve profitability for any company.     

燃煤电厂烟气脱硫技术综合评价研究

应用模糊数学原理和层次分析法,从经济、技术和环境三方面综合评价烟气脱硫技术,使烟气脱硫技术的选择更科学。以五种典型烟气脱硫技术为评价对象,应用该综合评价方法得出石灰石-石膏法较优的结论。     

Applicability of sustainable urban drainage systems: an evaluation by multi-criteria analysis

Urban flooding has become more serious and worldwide in recent years, especially in the big cities of developing countries. This study uses a multi-criteria analysis (MCA) approach to evaluate the applicability of sustainable urban drainage systems (SUDS), a flood control measure, in the central part of Ho Chi Minh City, Vietnam. The output of the personal computer storm water management model along with interviews with 140 households was used to assess the efficacy and acceptability of four SUDS alternatives: rainwater harvesting, green roof, urban green space and pervious pavement. On technical performance, green roof was the best alternative, followed by pervious pavement, urban green space and rainwater harvesting. Results of the social survey, however, diverged largely from the results of the technical assessments. In particular, people generally prefer public SUDS such as urban green space and pervious pavements to household solutions. With respect to the MCA, we applied four different procedures: Borda count, pair-wise voting, range of value and analytic hierarchy process. Despite some differences, the integrated results from MCA largely agree that urban green space is the most favourable type of SUDS, followed by green roof, pervious pavement and rainwater harvesting.     

成都大邑县西岭雪山风景名胜区环境美学评价研究

本文根据西岭雪山景区特色，将其分为三大景观区，从景观的美学价值出发，选择了１２个美学评价指标，运用层次分析法和征询评分加权法，对该风景区进行了环境美学综合评价。     

Beyond geomorphosites: trade-offs, optimization, and networking in heritage landscapes

This study uses Danxiashan, a world heritage site in Guangdong province, China, as a case study for planning a hypothetical geotourism network of heritage sites. This landscape has a multiplicity of values—its geoheritage cannot be separated from its ecological or cultural heritage. When designing a network of heritage sites for such a diversely valued landscape trade-offs must be made between differing and potentially conflicting objectives such as geotourism and geoconservation. To solve this multi-criteria decision problem, sites with potential value for people were designated as heritage sites, adapting the concept of geomorphosites—i.e., geomorphological heritage sites—to represent the intersection of anthropic values. In a GIS-based spatial decision support system heritage values for each site were weighted and ranked using the analytic hierarchy process and scenarios for alternative trail systems, and networks of tourism sites were generated by multi-criteria map overlay analysis and networking algorithms. The scenarios generated show how trade-offs can be made between oft-conflicting tourism and conservation objectives, how the design of parks can be optimized for multiple objectives, and how alternative design strategies can be explored. Such an approach could be used in scenario planning workshops to engage stakeholders in participatory design and consensus-based decision-making driven by geospatial science.     

基于GIS的新疆库尔勒市耕地地力等级评价研究

以新疆库尔勒市为例,将利用测土配方施肥项目所取得的基础数据,筛选有机质、速效钾、有效磷、有效锌等可量化的指标作为评价指标。根据模糊数学理论和特尔斐法建立评价因子的隶属函数模型,利用层次分析法建立评价因子的层次分析模型。以ArcGIS统计分析模块和空间分析模块为平台,根据加法模型计算出耕地地力综合指数,划分耕地地力等级。评价结果基本符合当地实际。     

Perceived landscape values and public participation in a road-planning process – a case study in Sweden

The European Landscape Convention indicates that assessment of different dimensions that exist in landscapes should be taken into account in planning. In this study, we first investigated ecological, cultural and social values as perceived by the local people in a highway-planning process in Sweden. Next, we explored which factors influenced the local people's participation in the road-planning process. We used questionnaires, planning documents and the Theory of Planned Behavior to investigate the relations between different factors and local people's participation in the planning process. The results showed that people presumed the ecological values in the landscape to be adversely affected by the new road, while the social values would remain the same. Landowners had heard of the participatory-process, but few participated. Those who lived within 300 m of the road were more active in the planning process than people living further away. The findings suggest that people living within a few hundred metres of the road should be treated as key stakeholders in the planning process. The involvement of other stakeholders, and when in the public participation process stakeholders should be involved, is also discussed.     

浅谈气相色谱仪的应用与日常维护

气相色谱仪是流程性工业中常见的分析仪器,被广泛用于分析精细的物质。它对气体物质或可以在一定温度下转化为气体的物质通过物性的不同进行检测分析。仪器在运行过程中有它特殊的环境适应性,所以在使用中需要对仪器进行必要的维护与保养。