对建筑物安全性鉴定工作的几点思考

通过对建筑物鉴定工作中的一些经验和体会,探讨了建筑物鉴定工作中的一些常见问题,并给出了自己的看法.     

建筑工程的建筑物安全性鉴定

本文通过对建筑工程鉴定工作中的一些经验和体会,探讨了建筑物鉴定工作中的一些常见问题,其根本意图在于要警钟常鸣,前事不忘,后事之师.由下建筑产品的商品化、市场化,建筑物鉴定工作、鉴定结论将直接与各相关方存在经济利益关系,从而也导致了一些法律问题,做为建筑物安全性鉴定单位及鉴定人在鉴定工作中存在的各种技术和非技术问题值得探讨与研究.     

浅析建筑检测鉴定工作中的问题

既有建筑物的检测、鉴定工作不仅对于评估建筑物的现状有重要意义,而且还直接影响着建筑物改造加固工作。本文重点分析了现阶段检测、鉴定中存在的一些问题,已引起工程人员的重视。     

浅谈房屋安全鉴定

随着我国经济建设的迅速发展和人民生活水平的不断提高,已建造了大量的民用和工业建筑。由于建筑物建造年代、使用年限及城市规划、管理和历史等因素的影响,许多建筑物的安全性有待评定;特别是一些已完工或正在建设中的建筑由于各种待鉴定因素的影响,建筑物已产生了不同程度的损伤。加强房屋的安全鉴定工作,消除房屋安全隐患,已是迫在眉睫。文章就房屋房屋安全鉴定工作的特点及在工作中遇到的问题,谈一些粗浅的认识和看法。     

关于建筑物安全性鉴定工作的几点思考

主要介绍了关于建筑物安全性鉴定工作中关于检测、鉴定工作的资质问题及检测、鉴定项目的科学性问题,以及鉴定工作中的法律问题。     

某酒店大堂中庭结构改造

本文按照建筑物可靠性鉴定及加固的原理介绍了某酒店大堂中庭结构改造,为鉴定及加固工作提供一些参考。     

火灾后建筑结构受损程度的鉴定及实例

本文阐述了建筑物火灾后结构受损程度的鉴定方法,并结合工程实例对实际检测鉴定过程中的一些问题进行了探讨。     

对建筑检测鉴定影响因素进行分析

完善对建筑物的检测、鉴定工作对建筑工程质量具有极其重要的作用。本文笔者重点分析了现阶段影响检测、鉴定工作的一些因素．希望能引起工程人员的重视。     

关于体育场地质量问题工程鉴定的探讨

建筑工程施工质量问题一直都是工程建设中的缺憾,主要反映在基础、上部结构和装饰及安装上,有些问题会导致建筑物的安全失稳,有的是导致建筑物的部分功能丧失,还有的是导致外观受损等等,我今天想通过工作中的实例来探讨一下体育场地出现质量问题进行鉴定的一些问题和经验。     

某商场火灾后建筑结构检测鉴定

结合工程实例，介绍了建筑物火灾后的查勘，取样，检测等工作，通过检验得出的结果，对类似受灾的建筑物的检测鉴定提供了参考。     

Use of iodide to enhance the phytoextraction of mercury-contaminated soil

Low bioavailability of mercury (Hg) in soil is a restricting factor in phytoextraction of Hg-contaminated soil. Iodide is known to mobilize Hg in soil and, therefore, the aim of this study was to investigate the possibility to use iodide to increase phytoextraction of Hg. The sensitivity of willow to iodide was investigated in both hydroponics with 0-10 mM KI and in soil with 0.2 and 1 mM KI addition. The capacity to accumulate HgI(2) was compared with that of Hg(NO(3))(2) in hydroponics. Soil extractions with 0-2 mM KI were used to study mobilization of Hg in aged Hg-spiked soil. Additions of KI (0.2-1 mM) were used in pot tests with aged Hg-spiked soil as well as in field trials in an industrial Hg-contaminated soil to study whether iodide addition increased the accumulation of Hg from contaminated soil and the translocation of Hg to the shoots. The total Hg contents in plants, soils and extracts were analyzed by CVAAS. The results showed that too high KI concentration was toxic to plants. Moreover, KI was toxic to plants at lower concentrations in hydroponics than in soil additions. KI (85 microM) in hydroponics gave 50% growth decrease in terms of dry weight of shoot biomass, whereas 0.2 mM KI in soil addition could be tolerated by the plant without growth disturbance. Willow accumulated Hg from HgI(2) solution slower than that from Hg(NO(3))(2) solution. KI mobilized Hg in contaminated soil and thereby increased the bioavailability of Hg in soil. Up to 1 mM KI addition increased the Hg concentrations to about 5, 3 and 8 times, respectively, in the leaves, branches and roots. However, the Hg translocation to the shoots did not show an increase with KI addition. Only less than 1% of the total Hg accumulated in the plant was distributed in the shoots. We may conclude that iodide addition enhances the phytoextraction of Hg, however, the translocation of Hg to the shoots is still too low and therefore it will not be realistic to use this method for phytoextraction of Hg-contaminated soil in practice.     

Cholinesterase activities in the scallop Pecten jacobaeus: characterization and effects of exposure to aquatic contaminants

Nearshore marine environments of industrialized countries are increasingly threatened by anthropogenic pollution. It is therefore a priority task to investigate the sensitivity of new ecotoxicological warning signals of the occurrence and effects of aquatic pollutants. The main aims of the present study were: 1) to characterize the biochemical properties of ChEs in tissues of the bivalve Pecten jacobaeus, using different specific substrates and selective inhibitors; 2) to measure sensitivity of ChE activities to in vitro exposure to the OPs azamethiphos and DFP and to the heavy metals cadmium and zinc. Our final aim was to carry out a preliminary evaluation of the suitability of ChEs measurement in tissues of the scallop for monitoring marine environmental quality and neurotoxic compounds contamination in the Mediterranean Sea. Responses to specific inhibitors have suggested that ChEs in adductor muscle share many characteristics with vertebrate acetylcholinesterase. Dose-dependent inhibition of ChE was observed in response to in vitro exposure to environmental contaminants such as cadmium and azamethiphos. Sensitivity to zinc and DFP was lower. ChEs in P. jacobaeus might therefore have potential as a sensitive biomarker for monitoring marine pollution. Results of the present study will be useful to focus further experiment of exposure to pollutants under in vivo conditions. CAPSULE: Cholinesterase activities in scallop Pecten jacobaeus were observed to be sensitive to contaminants in vitro and may therefore have potential as biomarkers for monitoring water pollution.     

Cost effectiveness of nitrate leaching mitigation measures for grassland livestock systems at locations in England and Wales

As much as 60% of the nitrate in water in England is thought to derive from agriculture. Legislation aims to improve water quality by limiting nitrate concentration in surface and groundwaters to 50 mg l⁻¹. The UK Government responded to the requirements of the EC Nitrate Directive by delineating Nitrate Vulnerable Zones (NVZs) to cover 55% of England in 2002 and increased it to 70% in 2009. In this study we assessed the cost-effectiveness of measures for implementation in livestock systems to mitigate nitrate leaching in the UK. These estimates were prepared for a range of hypothetical farms representative of typical dairy, beef and sheep farms at different locations in England and Wales and for a list of mitigation measures identified to reduce leaching. The NGAUGE and NFixCycle models were used to estimate leaching from these systems. The costs of implementation of the mitigation measures were also assessed in order to evaluate the cost-effectiveness of these measures. In general, the most effective measures to reduce leaching for all systems were the ones that involved a reduction in stocking rates and grazing time, followed by those involving improvements in fertiliser and crop management. Only in the case of the dairy system was effectiveness affected by location of the farm. The costs for implementation in the sheep system were relatively low compared with beef and dairy systems. Implementation of some of the measures with high cost-effectiveness would need to be incentivised financially or with legislation due to the high costs involved.     

Regional variations in particulate matter composition and the ability of monitoring data to represent population exposures

Epidemiologic studies have demonstrated that relative risks for mortality associated with ambient particulate matter (PM) concentrations vary with location in the U.S. with larger associations in both magnitude and strength observed in the East compared to the West. Two factors potentially contributing to the regional heterogeneity in PM-mortality associations observed are regional variations in PM composition and the ability of a single PM concentration estimate to represent the community-average exposure for an entire study area, which may lead to regional differences in exposure error. Variations in PM composition and the proportion of the population living in proximity to ambient monitors, an indicator of potential exposure error, are examined for the 20 most populated and 10 mid-size study areas included in the National Morbidity, Mortality and Air Pollution Study (NMMAPS). Clear differences in PM and in the proportion of the population living in proximity to ambient monitors are found for some of these cities. Differences in these exposure parameters may be interpreted more reasonably in terms of north-south differences compared to east-west differences, and may need to be considered when conducting future epidemiologic studies that aim to examine the factors that influence the regional variability in PM-mortality associations.     

Afterword—gendering religious objects: placing them as agents in matrices of power

ABSTRACT

The articles in this special issue demonstrate how objects can be interpreted as agents, as gendered images that make a statement, and how their impacts can be understood and assessed by human actors. They are differentially placed in matrices of power, and they can be manipulated to shift genders, to play with gendered combinations, to expand the limits of a particular gendered domain, to creatively play with reproductive imagery, and even to sell commodities in new and enticing ways in the mass media. Gendered religious objects are “statements” addressed not only to the eye but to the emotions, and part of a complex cultural field in which things can play important roles in people's lives. The links that connect ritual power to other forms of agency and biographical significance are perhaps the most significant links that we need to examine to understand them better in a world of many diverse cultural forms.     

The challenge of change for innovation in construction: A North Cyprus perspective

A vision of change for innovation within the perspective of revaluing the construction industry is essential to develop a culture of self-sustaining improvement, mutual recognition, respect and support in the long term in North Cyprus. The research attempts to put forward a case for a restructuring of the construction sector in order to deliver a step in change in quality of output and to realise maximum value to all clients, stakeholders and end users. The main objective of this study is to (1) determine current innovation practices and identify key issues that contribute to successful implementation (2) assess the existence and severity of barriers to change for innovation (3) propose solutions for overcoming barriers to change for innovation in construction industry and develop a framework to revaluate the construction industry. The research includes an extensive literature study, interviews with managers on the challenge of change for innovation in construction, analysis of this information to develop findings, and extending these to present the key strategic issues that could be targeted for revaluing the construction industry. The paper commences on understanding the firms’ own processes and detecting their weaknesses and strengths, determining the strategies and actions that should be made in the short term to adopt innovation practices and helping the North Cyprus construction industry to learn as a whole. The paper concludes how the drivers of change for innovation can offer benefits to construction firms in North Cyprus if appropriate strategies are adopted.     

Ageing in Unsuitable Places

Much of the focus of ageing in place policy is concerned with the provision of support to enable older people to age in the community in residences adapted to their needs. There has been little examination of why older people make choices to age in particular places in later life. In this paper, we drew on 143 interviews with older people in New Zealand to examine the narratives older people use to describe their housing preferences in later life. Older people drew upon personal and public narratives to story housing in later life, and construct four identifiable identities: ‘practical planner’, ‘rugged pioneer’, ‘where I belong’ and ‘rooted in place’. This analysis demonstrates that some older people do narrate decisions to age in ‘sensible’ places with good access to services and have clear plans for change as their physical health declines. Other older people live proudly in unsuitable places and do not wish for support to move or accommodations made to their housing. These older people draw upon narratives of place as foundational to their identity, of relationships with people both living and dead as social relationships that bolster their identity and of housing as part of situated lifelong narratives. Both the situation of their home and the condition of the home provide the backdrop to alternative narrative identities that require them to remain in housing because of, or irrespective of, its unsuitability. To understand the limitations and the possibilities of ageing in place, we need to identify the multiple narratives that structure the lives of older people. By doing so, we can support ageing in place processes that do not disrupt the strong identities that have been developed in and through housing.     

重庆购房户住宅需求取向分析

为了解决重庆房地产市场住宅市场供求不平衡这一个难题,我们提出了住宅产业化这个方案,但是在大规模的生产产业化住宅以前,首先必须知道重庆市居民对住宅的需求取向,正是因为这个原因,我们进行了一次问卷调查。问卷调查的目的是：摸清影响重庆市潜在购房户购房行为的因素,为重庆住宅产业化工程的实施构建一个模型。因此本文的目的就是：分析影响重庆市潜在购房户购房行为的因素,找出本市居民喜欢的住宅类型,我们研究组的总体研究目的是：立足于本地的资源,探索在重庆实施住宅产业化工程的可行性,如果可行,那么我们将在充分利用本地建筑材料的基础上,设计出切实可行的产业化住宅模型。在目前这个阶段,工作的重心是摸清重庆建筑业的概况,为下一步的研究铺平道路。而本文的中心是：找出本市居民喜欢的住宅类型。     

Semi-natural Forested Landscape under a Bark Beetle Outbreak: A case study of the Bohemian Forest (Czech Republic)

Long-term and lasting human interference in forest ecosystems in the Bohemian Forest has resulted in the loss of some equilibrium mechanisms and hence increased susceptibility to ecological disturbances. Two methods for estimating bark beetle outbreaks in spruce forests are reported: an assessment of the susceptibility of individual trees to attack according to crown structure characteristics; and the use of remotely sensed data and image processing techniques to quantify changes in forest cover. The results document a significant increase in the area of highly damaged and dead forest classes, from 1% in 1987 to 16% in 1998, and a decrease in the area of healthy and moderately damaged spruce classes from 71% in 1987 to 52% in 1998. A possible approach to managing mountain Norway spruce ecosystems invaded by bark beetle in the Bohemian Forest is proposed.     

Semi-natural Forested Landscape under a Bark Beetle Outbreak: a case study of the Bohemian Forest (Czech Republic)

Long-term and lasting human interference in forest ecosystems in the Bohemian Forest has resulted in the loss of some equilibrium mechanisms and hence increased susceptibility to ecological disturbances. Two methods for estimating bark beetle outbreaks in spruce forests are reported: an assessment of the susceptibility of individual trees to attack according to crown structure characteristics; and the use of remotely sensed data and image processing techniques to quantify changes in forest cover. The results document a significant increase in the area of highly damaged and dead forest classes, from 1% in 1987 to 16% in 1998, and a decrease in the area of healthy and moderately damaged spruce classes from 71% in 1987 to 52% in 1998. A possible approach to managing mountain Norway spruce ecosystems invaded by bark beetle in the Bohemian Forest is proposed.