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1.
介绍了静海水务城乡供水一体化运行调度平台的建设和应用,平台的搭建和运行有力提升了管理服务水平,节省了劳力和成本的支出,提高了工作效率和业绩.同时分析了存在的不足,对智慧水务和优化调度平台的完善和建设提出了期望和展望. 相似文献
2.
为学习和借鉴澳大利亚、新西兰城市建设和管理的先进经验,近日我们一行对澳大利亚、新西兰城市建设和管理进行了考察,途经澳大利亚的悉尼、布里斯班、黄金海岸和首都堪培拉以及新西兰的奥克兰、罗托鲁阿、汉密尔顿等城市。通过考察,我们既充分领略了当地优美的自然风光和人文景观,又强烈感受到了不同价值文化的冲击,开阔了视野,拓宽了思路,更新了观念,看到了差距,学到了城市建设和管理方面的经验。 相似文献
3.
信息化工作是国土资源和城乡规划工作的重要基础。武汉市国土资源和规划局信息化和数字城市建设多次得到住房和城乡建设部、国土资源部、国家测绘局的肯定。通过信息化建设。加强了对工作环节的监控和督办。提高了行政效能和工作效率,为建设单位和市民提供了优质服务,促进了国土规划工作科学化、民主化和法制化进程。通过“数字武汉”研究和地理空间框架建设,推出了地理空间信息在线网络服务,推进了全市信息资源的集约利用,推动了全市信息化进程,支撑了城市管理和社会管理创新,为数字武汉、智慧武汉乃至幸福武汉建设奠定了坚实的基础。 相似文献
4.
本文介绍了建筑材料燃烧性能检测的必要性和重要性,阐述了现有的燃烧性能检测方法和标准,包括试验方法、试验样品、试验环境等,重点分析了不同检测方法的优缺点和实际应用情况。此外,本文还针对实际应用中可能出现的误操作和误解进行了讨论,提出了相应的建议和纠正措施。最后,总结了燃烧性能检测在建筑材料防火安全中的应用和意义,展望了未来的发展方向和趋势。 相似文献
5.
《Planning》2020,(1):81-84
党的十九大围绕党的建设问题,提出了一系列内涵丰富,影响深远的新论断,将党的领导地位提到了新的高度,突出了党建在新时代的地位和作用,丰富和优化了党建的总要求和总布局,创新和改进了党建的途径和方法。在综合考虑世情、国情、党情基础上的党建理论创新,在新的时代背景下丰富和发展了马克思主义党建理论宝库,为新时代党的建设提供了理论指南,有利于解决党存在的主要矛盾和问题,为世界范围内的政党建设提供了中国智慧和方案。 相似文献
6.
随着当今社会政治经济的高度发达,科技和文化也得到了极大的进步和发展,人们的物质精神生活极大丰富,社会对于传统文化和非物质文化遗产等的传统文化形式的关注也逐渐得到了重视和提高,很多传统的文化形式和文化内容都在得到了革新和变化发展之后获得了新的生命力和活力。而苏绣,作为我国传统非物质文化遗产的重要表现形式也越来越受到社会各界的重视。本文就苏绣针法在近代民间荷包中的运用的现状进行了分析和探讨,并针对苏绣针法在未来社会中的发展进行了展望和预测,为日后的实践和发展提供了参考和借鉴。 相似文献
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为了实现关键链技术和项目管理软件的结合,并在我国工程管理领域得到应用和普及,简要介绍了关键链技术,针对关键链技术的局限性,提出了合理工期计算方法,分析了工期中包含的工作日和非工作日,探讨了缓冲区的设置和缓冲时间计算的方法;分析了关键链技术和网络计划技术的异同,改良了Project 2003 软件,克服了关键链技术和软件结合的瓶颈;建立了施工进度计划系统、网络计划技术模型和关键链计划技术模型,有助于施工进度计划的编制和优化。通过工程案例,编制了施工进度计划,计算简单、操作方便,证明方法可行。 相似文献
10.
对西马矿井和地表村庄概况进行了介绍,制定了开采村庄下压煤的技术措施、实施方案和村庄搬迁的具体步骤以及搬迁后的总体规划,精确地计算了开采的投资和收益情况,分析了开采后产生的社会效益和环境效益,为合理利用和开发国家资源提供了可靠的依据,同时也提高了矿井的服务年限。 相似文献
11.
Summer and winter discomfort in terms of heat and cold stresses in the nine major architectural climate zones and sub-zones across China in the 21st century were investigated using predictions from general circulation models for the low and medium emissions scenarios. For the six severe cold and cold climate zones in the north, reductions in cumulative cold stress outweighed the increase in cumulative heat stress resulting in an overall decreasing trend in the annual cumulative stress, and vice versa for the other three warmer climate zones in the south. Compared with the 20th century, significant reduction in the cumulative cold stress was observed across the six zones in severe cold and cold climates, ranging from 15.8 in cold-III to 42.3 in severe cold-II. There were modest increases in the cumulative heat stress from 0.3 in cold-II to 12.3 in cold-III. For the warmer climates in the south, reduction in cumulative cold stress ranged from 7.6 in hot summer and warm winter (HSWW) to 10.3 in hot summer and cold winter, while cumulative heat stress increased from 9.9 in the mild zone to 30.6 in HSWW. A reduction in cold stress would result in less winter heating and an increase in heat stress more cooling requirement. 相似文献
12.
Stephan Bose-O'Reilly Gustav Drasch Saulo Rodrigues-Filho Beate Lettmeier Alexandra Maydl Uwe Siebert 《The Science of the total environment》2010,408(4):713-1000
Small scale miners use mercury to extract gold from ore in many countries. An environmental and health assessment was performed in Indonesia in two regions, Galangan in Central Kalimantan and Talawaan in Northern Sulawesi. The environmental assessment showed severe mercury contamination of the sediments, and increased mercury levels in local fish. For the health investigation 281 volunteers were recruited and examined by a standardized questionnaire, a neurological examination and neuro-psychological tests. A medical score was used consisting of significant factors of mercury intoxication. Mercury exposed workers showed typical symptoms of mercury intoxication, such as movement disorders (ataxia, tremor, dysdiadochokinesia, etc.). Blood, urine and hair samples were taken from any participant and analyzed for mercury. The mercury concentration in the biomonitors was high, partly extreme high in the working population, increased in the population living in the same habitat and low in the control group. By a standard protocol which includes a combination of threshold values of mercury in the biomonitors and a medical sum score the diagnosis of chronic mercury intoxication was made for highly burdened workers (amalgam smelters) in 55% in Sulawesi and in 62% in Kalimantan. Less exposed mineral processors and the general population in the mining areas were also intoxicated to a high percentage. 相似文献
13.
Lehtola MJ Laxander M Miettinen IT Hirvonen A Vartiainen T Martikainen PJ 《Water research》2006,40(11):2151-2160
We studied the effects of flow velocity on the formation of biofilms and the concentration of bacteria in water in copper and plastic (polyethylene, PE) pipes. The formation of biofilms increased with the flow velocity of water. The increase in microbial numbers and contents of ATP was clearer in the PE pipes than in the copper pipes. This was also seen as increased consumption of microbial nutrients in the pipeline system. This indicates that the mass transfer of nutrients is in major role in the growth of biofilms. However, the increased biomass of biofilms did not affect microbial numbers in the water. Rapid changes in water flow rate resuspended biofilms and sediments which increased the concentrations of bacteria and copper in water. The disturbance caused by the changing water flow was also seen as an increase in the particle counts and water turbidity recorded with online instrumentation. 相似文献
14.
依托某破碎花岗岩巷道工程,以多孔介质中气体的渗流理论为基础,综合考虑影响氡在破碎花岗岩山体及巷道中运移和析出的多种因素,构建了氡的数值计算模型,给出了山体和通风巷道中的氡浓度计算公式,模拟并比较了自然状态和微正压通风状态下山体中氡浓度分布的变化情况,并对微正压通风状态下巷道中氡浓度的变化情况进行模拟和验证。研究结果表明:扩散作用和渗流作用是巷道围岩中氡运移的主要机制;微正压通风条件下巷道中氡的运移主要受通风作用、围岩的射气作用和氡的衰变作用共同影响;微正压通风能够改变围岩中氡的渗流方向,是巷道降氡的有效手段。 相似文献
15.
Martin Mihaljevi? Vojtěch Ettler Petr Drahota Ladislav Strnad Josef Zeman 《The Science of the total environment》2010,408(6):1286-1294
The weathering of arsenopyrite (FeAsS) has been monitored in soils using an in situ experimental approach. Arsenopyrite in nylon experimental bags was placed in individual horizons in soils in spruce (litter, horizons A, B, and C), beech (litter, horizons A, B, and C) and unforested (horizons A, B, and C) areas and left in contact with the soil for a period of 1 year. The individual areas on the ridge of the Krušné hory Mts., Czech Republic, had the same lithology, climatic and environmental conditions. Scorodite (FeAsO4·2H2O) was identified as a principal secondary mineral of arsenic (As) formed directly on the surface of the arsenopyrite. Scorodite was formed in all the areas in all soil horizons. The amount of scorodite formed decreased in the series beech, spruce and unforested areas. In forested areas, there was a larger amount of scorodite on arsenopyrites exposed in organic horizons (litter, A horizon). The greater rate of arsenopyrite alteration in organic horizons in the beech stand compared to spruce stand is probably a result of faster mineralization of organic material with resulting production of nitrate and better seepage conditions of soil in this area. Speciation of As determined using the sequential extraction technique demonstrated that As was bonded in the soils primarily in the residual fractions prior to the experiment. The As content in the mobile fractions increased in the organic horizon in the forested areas after the experiments. 相似文献
16.
The practice of architecture is very similar in different national settings despite what may be very different sociological and cultural origins of the profession, the attendant variances in how work is organized and distinctions in equality and gender roles. The aim of this paper is to examine the quest for equality in architecture for women in the UK and Spain reporting the findings of a comparative study into women architects’ careers in the two countries. Within the qualitative paradigm, semi-structured in-depth interviews were carried out with a total of 55 women architects in the UK and Spain. Findings indicate surprising differences in levels and terms of equality for women in the two countries and marked differences in women’s experiences of working as an architect. Women have come to the profession in Spain much later than their British counterparts and, somewhat surprisingly, are present in greater numbers. However, despite there being more of a ‘critical mass’ this has not served to improve their situation; they report much higher levels of discrimination and find it difficult to progress in their careers. Conclusions argue for a stronger approach by the professional bodies to help improve the position of women. 相似文献
17.
The main objective of this study was to determine the importance of secondary mechanism of organic carbon utilization (mixotrophic and heterotrophic modes) in addition to CO2 fixation (photoautotrophic mode) in the green alga, Micractinium pusillum Fresenius (chlorophyta), isolated from a waste stabilization pond. The growth was studied in the presence of acetate and glucose. The incorporation rate of 14C- acetate was measured in the light and in the dark at different concentrations. Finally, in order to underline the role of photosynthesis and respiration processes in the acetate assimilation, the effect of two specific metabolic inhibitors, a specific inhibitor of photosystem II (DCMU) and an uncoupler respiratory (DNP), has been studied. The obtained results showed that M. pusillum grows in the presence of organic substrates, i.e., glucose and acetate, in the light (mixotrophic growth) as well as in the dark (Heterotrophic growth). The growth was much more important in the light than in the dark and more in the presence of glucose than of acetate. In the light, the presence of acetate led to a variation of growth parameters mumax, iotaopt, and beta. The effect of acetate gradient on the growth of the microalga was severe as soon as its concentration in the medium was higher. The acetate uptake followed a Michaelis-Menten kinetic in the light as well as in the dark. The capacity of assimilation was slightly higher in the dark. The utilization of DNP and DCMU indicates that acetate incorporation is an active process depending on both anabolic (photosynthesis) and catabolic (respiration) metabolisms, corroborating the model of the Michaelis-Menten kinetic. 相似文献
18.
随着国内中西建筑文化交流研究的拓展与深化,近代西方基督教会在华营建活动及其建筑渐为学术界所关注。通过对近代中国以及西方教会宗主国—英国(为例)同期教堂建筑样式进行对比,阐释近代中西建筑文化交融中错综复杂的建筑现象,揭示近代教堂建筑发展的特征、规律。 相似文献
19.
Polycyclic aromatic hydrocarbons (PAHs) in agricultural soil and vegetables from Tianjin 总被引:45,自引:0,他引:45
Tao S Cui YH Xu FL Li BG Cao J Liu WX Schmitt G Wang XJ Shen WR Qing BP Sun R 《The Science of the total environment》2004,320(1):11-24
Several types of vegetables were collected from two contaminated sites in Tianjin, China. The bulk soil and the rhizosphere soil samples were also collected from the same plots. Sixteen PAHs in the samples were measured. The total concentrations of PAH16 in the bulk soil from the two sites were 1.08 and 6.25 microg/g, respectively, with similar pattern. The concentrations of PAH16 and individual compounds in the rhizosphere were significantly higher than those in the bulk soil with mean values of 2.25 and 7.82 microg/g for the two sites, respectively. The contents of both total and dissolved organic matter in the rhizosphere were also higher than those in the bulk soil. Almost all PAH compounds studied were detected in both roots and aerial parts of the vegetables studied. Abundance of higher molecular weight PAHs in vegetable, however, was lower than that in soil. Concentrations of PAH16 in vegetable were higher than those reported in the literature for other areas. It appears that agricultural soils and vegetables in Tianjin, especially those from the site located immediately next to an urban district and irrigated with wastewater for several decades, are severely contaminated by PAHs. Among the eight types of vegetable studied, the highest concentration of PAHs was found in cauliflower. By average, the concentration of PAH16 in the aerial part of vegetables was 6.5 times higher as that in vegetable root, suggesting that foliar uptake is the primary transfer pathway of PAHs from environment to vegetables. 相似文献
20.
清末广州中西交汇,景园营造新旧共存互动,推
动岭南园林的近代转型。其中,在繁荣的中西贸易和文化交
流,以及书院文化、士绅文化等的影响下,清末岭南形成了
以广州为中心、十三行行商为代表、官商士绅竞相造园的特
殊历史时期,其造园数量、规模、意匠等均在该时期达到岭
南古典园林发展的巅峰。这一时期也是岭南园林近代转型的
关键时期。在西方文化和清末洋务运动思想的影响下,广州
开始出现洋务花园、公园、市政绿化,以及校园绿地等新型
园林形式。这些具有公共性质的城市景致与新建私园一道广
泛分布在城墙以外,成为清末广州城市空间拓展与风景体系
形成的重要参与者。由于清末广州城外造景的繁荣,从时间
上开启了岭南园林的近代转型,在空间上使岭南园林的地域
性特征得以形成和辨识,其空间性与时间性界定了清末岭南
园林近代转型的物质及文化维度。梳理了清末广州具有代表
性的景园营造活动,在分析其动力机制的同时,探讨城外造
景之于岭南园林近代转型的意义。 相似文献