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1.
21世纪是开发地下空间的世纪,钢铁材料则是开发地下空间的主角.面临世界人口增加的压力,介绍了世界发达国家把地下空间开发利用作为城市建设的第二空间,地下工程建设,为21世纪钢铁业发展提供了广阔空间.介绍了我国结合城市改造,开发地下空间的情况和重点建设工程项目.  相似文献   

2.
通过对南京市老城南地块居住空间分异现象的分析,解读该地块居住空间分异的特征,探求阶层分化和居住空间分异的相互影响,并为旧城改造、城镇更新运动中城市空间的发展提出合理的建议.  相似文献   

3.
工业化是现代化发展的起点和核心内容.工业化导致要素的空间聚集和大规模的人口迁徙,促进了城市的形成和发展.工业化所带来的先进技术,也彻底改造了传统农业生产方式.但是,我国目前工业化和农业现代化的发展却受到了空间的制约.在这种情况下,只有提升空间使用效率才能解决空间供求的巨大矛盾.这个提高空间使用效率的方法就是土地资本化.本文理论联系实际,分析了城镇化进程中土地资本化的相关问题,为城镇化提供更多可持续发展的空间.  相似文献   

4.
当代城市高速发展,新旧更替也在不断进行.城市中的旧建筑已经不适合城市的发展需要,但作为城市文化的载体,它仍角有其存在的价值.旧建筑可以改变身份,在演绎下不断生存,续写城市的历史.本文列举某城市旧建筑改造的实例,对城市旧建筑改造提出一些建议.  相似文献   

5.
随着中国经济的发展,城市空间的扩大与城市土地资源紧缺的矛盾逐渐显现,有序利用城市地下空间可以缓解城市发展的一系列矛盾.但是由于我国对地下空间开发利用工作起步比较晚,地下空间的布局不合理,利用水平低,造成了地下空间资源的极大浪费.因此,我们需要合理、科学、慎重决策,统一规划,统一管理.综合利用城市地下空间.影响城市地下空间项目的因素很多,各个因素又交织在一起,错综复杂.本文将影响城市地下空间决策评价的因素按其性质分为四类,使影响因素清晰明了,方便决策者在决策中使用.  相似文献   

6.
随着旧城改造和新城扩建,城市房屋拆迁中利益冲突不断,折迁矛盾凸显,"钉子户"的产生成了城市房屋拆迁矛盾中特有的现象.而利益格局失衡以及"争利"是"钉子户"出现的重要原因,应该从制度上规范各利益相关者的利益,让利于民,建立被拆迁户分享开发效益的机制,并为被拆迁户,尤其是弱势群体提供一个公开、公正、公平的争议及裁决的渠道.  相似文献   

7.
"智慧城市"是以互联网、物联网、电信网、广电网和无线宽带网等网络组合为基础,以智慧技术高度集成、智慧产业高端发展、智慧服务高效便民为主要特征的城市发展新模式.继工业化、电气化、信息化之后,"智慧化"成为全球科技革命又一次新的突破.利用智慧技术,建设智慧城市,是当今世界城市发展的趋势和特征.  相似文献   

8.
提出了采用架空绝缘电缆、特殊设计的小型铁塔和钢管杆等几种技术,解决了10kV线路改造的难题。为地面狭窄、空间阻隔的城市、铁路站场和林区、工业区等地,提供了10kV线路架设的一种实用新方法。  相似文献   

9.
以"佳蓬"律师楼为例,介绍了城市写字楼建筑的屋顶花园的设计指导思想、设计构思、景观分析方法.旨在通过"佳篷"律师楼屋顸花园这一实例为其他的城市屋顶花园设计提供参考,笔者希望屋顶花园这一花费少的建筑绿化形式可得以普遍应用及推广.  相似文献   

10.
解读了家居"软装"空间的定义,分析出"软装饰"可达到藏拙露巧、空间重划、空间重组、空间填充的目的,从而弥补家庭硬质装修的不足,起到细化家居空间、完善家居空间功能等作用.说明"轻装修、重装饰"将是家居装修新的发展方向.  相似文献   

11.
转炉炉壳热应力分析   总被引:5,自引:1,他引:4  
任学平  郭志强  邹家祥 《炼钢》2001,17(6):47-49
根据实际转炉建立实体模型。以有限元为手段,考虑了炉衬和炉壳材料的物性参数随温度变化的特点和炉衬与炉壳之间膨胀间隙,计算了转炉炉壳在温度载荷和炉衬膨胀压力同时作用下的热应力。所得结果可为转炉炉壳设计提供依据。  相似文献   

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14.
Usage of quality of life of psychiatric patients' relatives as the parameter of estimation of the quality of psychiatric care is considered. By means of standard questionnaire elaborated by the authors as well as by means of both individual and group conversations the quality of life was analyzed in 40 relatives which lived together with psychiatric patients. Different spheres of their life and difficulties (financial, social-psychologic, production) were examined in families with such patients. The defects of psychiatric care that had direct influence on the quality of life of the psychiatric patients' relatives are outlined.  相似文献   

15.
16.
The effect of 20 different antibiotics on chemotaxis by human neutrophils was studied. Human leukocytes incubated with chloramphenicol, rifampin, sodium fusidate, and tetracyclines in vitro showed markedly depressed migration. The mechanisms by which these antibiotics affect leukotaxis are discussed.  相似文献   

17.
Totally negative results of epidemiological investigation of random samples do not prove the absence of the infection as the pathogen may be restricted to only a few animals in the herd for a long time. The statement "absence of infection" is critical for such situations. The question is raised, whether the statement "absence of infection" should be generally avoided. Classification of herds and flocks according to the prevalence of the pathogen would be more valid for the implementation of control measures.  相似文献   

18.
显微维氏硬度测量不确定度评定   总被引:1,自引:0,他引:1  
对显微维氏硬度测量不确定度进行评定,建立了不确定度计算的数学模型,确定了影响实验结果的各项因素,计算出了各因素的标准不确定度,得出结果的扩展不确定度,并给出最终测量结果的表达式。  相似文献   

19.
Some theories of personality hold that an individual's perception of others is influenced by his own personality characteristics; more specifically, that a trait of low social value will be projected more into others, and that insight into the possession of these characteristics reduces this distortion. These 2 hypotheses were tested by having a group of college students rate each other (including themselves) on degree of friendliness or hostility. Agreement with group rating about self yielded the insight score. In general, the hypotheses were supported; the "friendly" Ss were most accurate in their perception of others, and insight was positively associated with accurate perception. From Psyc Abstracts 36:04:4HL16M. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

20.
The rates of infection of two methods of external ventricular drainage in use at Atkinson Morley's Hospital--namely, (a) percutaneous drainage with Rickham reservoirs and (b) tunnelled ventriculostomies--were compared in this retrospective review. Percutaneous drainage of CSF with Rickham reservoirs was associated with a 27% rate of infection as identified by positive microbiological cultures; tunnelled ventriculostomy catheters had a 10% infection rate. The difference in the infection rate between the two methods was statistically significant (P < 0.015). Other variables examined, including the age and sex of the patients and the reasons for ventricular drainage, were not associated with an increased rate of infection. Most infections from either method were caused by a coagulase negative staphylococcus. The average duration of ventricular drainage before identification of positive cultures was 5.7 days for Rickham reservoirs and 6.0 days for ventriculostomies.  相似文献   

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