首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 0 毫秒
1.
《亚洲消防》2007,(1):45-47
Emergency lamp is currently considered as one of the most potential products In the market. The present shortage of electricity across the country makes the market of the product a ceveted cake for many enterprises. However, it Is undoniahle that there Is Intensive competition in the market of emergency lamp and the censumers of this type of natlenal standard preducts are different frem the cemmen lighting products. Tberefere, the standand of the emergency lamp becemes a threshold for many enterprises.  相似文献   

2.
晏辉 《石材》2003,(6):27-31
1992年我国编制了《天然饰面石材术语》(GB/T13890—1992)国家标准,随着石材工业的发展,一些新的术语也迫切需要补充进去。本文从生产实践中对一些新的术语提出了理解,对一些老的术语进行了口语化的解释(但在正式文件或设计中还应以正式标准用语为准),有利于日常交流。我们迫切需要一个全面、准确的新的石材术语标准尽快出台。  相似文献   

3.
赵琪  王蕾 《城市建筑》2007,(8):67-68
本文从分析西方发达国家城市郊区化和北京郊区化现象入手,指出郊区化的判断标准,并论述了北京城市中心区的划分标准和郊区化带来的问题。  相似文献   

4.
5.
This research maps some of the debates on community building in the planning of suburban developments. Particular reference is made to Kokoku New Town in Yokohama, Japan, and the Golden Grove Development in Adelaide, Australia. These two developments emerged in the early 1980s and the histories related suggest significant similarities, although they grew out of different regimes of power. Drawing upon Foucault and other governmentality thinkers, this study focuses on the relationships between neoliberalism and suburbanization. The primary concern is the exercise of government (the conduct of conduct) and how this exercise is carried out and maintained.  相似文献   

6.
在中国和美国住宅郊区化相关研究的基础上,分析两国在郊区化进程中,宏观背景、微观动力、社会阶层分布、郊区住宅和中心城区命运等方面的不同特点。立足中国的基本国情,吸取美国的经验教训,论述我国住宅郊区化在政府职能、住宅结构和基础设施等方面存在的问题,并提出相应建议。  相似文献   

7.
Using data from the US Department of Housing and Urban Development (HUD) concerning Housing Choice Voucher (HCV, formerly called Section 8) recipients, the authors provide a spatial analysis in Cincinnati, Ohio, USA. ‘Hot spot’ analysis is utilized to detect areas with significant densities of voucher recipients compared with the surrounding environs. Results show that the implementation of Cincinnati's HCV program between 2000 and 2005 in conjunction with public housing transformation has not led to a greater dispersion of voucher recipients and either poverty or racial deconcentration. Many HCV households remain concentrated in hot spots. The implications for US low-income housing policy are discussed.  相似文献   

8.
企业的发展取决于企业的方向和全体员工的努力  相似文献   

9.
10.
11.
大城市郊区化、居住空间分异与模式研究--以北京市为例   总被引:4,自引:0,他引:4  
借鉴国外的郊区化发展理论,分析了北京市人口郊区化的特点、动力机制和居住空间分异特征,在此基础上,提出了"轴线跳跃式成组团"的郊区居住模式,这对于合理确定郊区不同地域空间的住宅开发方式具有直接的指导意义.  相似文献   

12.
The mortgage market in the United States has seen tremendous changes during the last years, most important of which is the evolution and growth of the secondary market and the accompanied increase in subprime lending. Traditionally depository institutions as banks and thrifts were the main issuers of mortgages. Nowadays, however, the mortgage market is occupied by many more institutions and agents, who are issuing a large share of mortgages. On the positive side, the growth of the subprime market has increased homeownership rates for low-income and minority households. On the negative side, however, statistics suggest that Blacks and Hispanics extensively rely on subprime loans. This is critical insofar as some of those households would have qualified for a less costly prime mortgage. Moreover, there is evidence that minorities—most of which are concentrated in certain neighborhoods—are purposely targeted to purchase a subprime loan which is not suited to their financial abilities. Thus, the current crisis, and accompanied foreclosures of homes, can be expected to disproportionately affect Blacks and Hispanics.  相似文献   

13.
This paper reports the results of a study which used a set of individual mortgage records from a major building society to examine the distribution of negative equity between different categories of borrowers in Britain by the third quarter of 1993. The major findings are: negative equity was disproportionately held by borrowers with properties in the South East (although there are very significant micro‐spatial variations); only in the northern regions of Britain were people with mortgage advances of more than 90% of purchase price unlikely to have negative equity; negative equity was disproportionately held by those who purchased their property between 1988 and 1991; negative equity is disproportionately held by those on lower incomes; negative equity is disproportionately held by younger borrowers. In every region it is borrowers who were under 25 at the time of purchase who held the largest proportions of negative equity in 1993. Negative equity is disproportionately held by those who purchased properties at the lower end of the market (in every region it was 1988–91 borrowers whose property was purchased for less than £40 000 who were most likely to have negative equity. Negative equity was disproportionately held by borrowers whose occupations at the time of purchase were in clerical or manual work. Some of the implications of these findings are discussed.  相似文献   

14.
This paper examines the housing experiences of immigrants to Canada through a survey of first-generation Portuguese homebuyers in Mississauga, a suburb of Toronto. The survey focused on the push/pull factors leading to their decision to live in the suburbs, their housing search strategies, and their use of services in Mississauga and in the initial area of Portuguese immigrant settlement in downtown Toronto. This study uses data from a questionnaire administered to 110 Portuguese homebuyers in 1990, shortly after their first move to suburban Mississauga; a sample of those respondents were re-interviewed in 2003. The evidence indicates that these immigrants were ‘pulled’ into relocating to Mississauga because of their desire to live in a single-family dwelling in a good neighbourhood. Their housing search relied extensively on ethnic sources of information, particularly Portuguese real estate agents. In general, this group of immigrants expressed satisfaction with their move. The Portuguese community in Mississauga is characterized by a form of voluntary segregation, which seems to be partly a result of their reliance on their own ethnic community for information, language barriers to participating in non-Portuguese activities, and a cultural preference for living near people of the same ethnic background. One consequence of this re-segregation process, by which Portuguese people recreate a Portuguese ‘homeland’ in the suburbs, has been the limitation of their social contacts with members of other ethnic communities that have also settled in suburban Mississauga.  相似文献   

15.
金雷 《城市建筑》2005,(12):66-67
采访者:金雷(以下简称"金") 被采访者:莱斯·沃里克(以下简称"莱") 金我知道您参与的大部分工程都建在索诺拉沙漠地区,在沙漠中建造的最佳方式是什么?  相似文献   

16.
There are a number of circumstances that involve the burning of toxic materials, including pesticides, herbicides, insecticides, and poisonous plant or plant products. Toxicity issues of smoke from the Anacardiaceae family and the Oleander are discussed and contrasted with that from pesticides, herbicides, insecticides, and other organic materials. Work in two major European programs is reviewed. Survival fractions in smoke of 1 to 10% can be expected for some toxic compounds in fires. Survival fractions are dependent not only upon the specific toxic compound but on the fire scenario and other fuels present. Of importance, flaming combustion mat not ensure destruction of such compounds in real fire incidents.  相似文献   

17.
美国城市化和郊区化历史回顾及对中国城市的展望   总被引:20,自引:0,他引:20  
本文回顾了美国自殖民地时期以来的城市化和郊区化历史过程。美国的城市化和重大社会经济变革主要发生在19世纪,而美国的郊区化则始于20世纪,并且在第二次世界大战以后得到加速发展。尽管中美两国之间存在许多差异,但是中国迟早也将经历先城市化,后郊区化的过程。在未来中国的大都市地区,在城市化和郊区化两种力量的相互影响下,一个由便利交通和通讯基础结构设施支撑的多中心城市空间结构必将最终形成。  相似文献   

18.
美国城市化和郊区化历史回顾及对中国城市的展望   总被引:1,自引:0,他引:1  
本文回顾了美国自殖民地时期以来的城市化和郊区化历史过程.美国的城市化和重大社会经济变革主要发生在19世纪,而美国的郊区化则始于20世纪,并且在第二次世界大战以后得到加速发展.尽管中美两国之间存在许多差异,但是中国迟早也将经历先城市化,后郊区化的过程.在未来中国的大都市地区,在城市化和郊区化两种力量的相互影响下,一个由便利交通和通讯基础结构设施支撑的多中心城市空间结构必将最终形成.  相似文献   

19.
参观这个水上公园,既观赏了周边的景色,又亲近了鸟类。  相似文献   

20.
People with disabilities (PWD) cannot take all the routes accessible to people without disabilities because of their disabilities, attached equipment, lower speed, and larger space requirement. This results in more challenges and slower movements for PWD during emergency evacuations in comparison with people without disabilities. This study focuses on the accessibility of egress routes to people who use a wheelchair (PWW) during an emergency evacuation, referred to as egressibility. While this research benefits from the existing literature on indoor wayfinding for PWW, it considers three additional criteria to find the most convenient route for emergency evacuation of PWW: (a) avoiding blockages due to the collapse of walls or ceilings, (b) minimizing turns, and (c) balancing the congestion by offering less-congested routes in response to new requests. The results showed that considering turn minimization as an extra factor in finding the most accessible route could prevent the evacuees from changing the elevator or taking too many turns, just to avoid a slightly less convenient, yet accessible, segment. The results also showed the efficiency of the algorithm in returning the second optimal egress route to avoid blocked segments. The pedestrian congestion minimization component of the algorithm temporarily decreases a segment’s desirability to be included in other egress routes. The experiments showed the benefit of this component in offering an alternative optimal egress route to evacuees whenever it is more convenient than the more crowded first optimal egress route.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号