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1.
绿色住区环境是一种以生态学的基本原理为指导,规划、建设、经营、管理的城镇人居环境.当前,绿色住区环境建设将"改善住区环境生活质量"为目标,努力营造出一个以"生命,活力,健康发展"为指导的住区环境.文章从几个方面探讨了现代住区环境中的"绿色设计"理念.  相似文献   

2.
建设生态住区是南宁市实现“森林城市”战略目标的重要组成部分.文章以南宁市城区的六个区为评价单元,建立南宁市生态住区的发展能力评价指标体系,运用层次分析法确定权重,利用加权函数法计算综合评价分值,然后根据分值将南宁市六个区分为生态住区建设能力较强、一般和较弱三个不同类型,最后针对该地区的实际情况提出增强南宁市生态住区发展能力的对策.  相似文献   

3.
刘平 《广东科技》2008,(24):72-73
结合实际,提出了提高小城镇规划建设管理水平的对策与措施。针对城镇住区建设中出现的新趋向,从土地使用、开放空间和绿地系统、交通与停车、建筑形态及组合、公共服务设施与建筑小品等方面探讨了城镇住区规划管理的基本思路和方法。  相似文献   

4.
中国城市住区CO_2排放量计算方法   总被引:4,自引:0,他引:4  
为研究中国城市住区全寿命周期CO2排放情况,综合考虑住区住宅建筑排放量和绿地吸收量,提出计算方法,并以北京为例选择典型多层住区单元地块进行计算,讨论减排方法和减排潜力。计算结果表明:在现行规范、现有能源结构和技术水平下,案例住区建筑CO2排放量中约3%可由住区绿地吸收。通过推行节能措施和利用可再生能源,可实现减排约50%。而实现住区零排放,则需要从城市整体角度大量依靠郊区森林碳汇资源。  相似文献   

5.
以沈阳市浑河滨水住区为研究对象.讨论了住区设计面临的问题与矛盾,结合正在进行的浑河滨水住区开发和建设实践,分析研究解决滨水住区现存问题的对策与措施,对将来的发展规划和建设提出一些意见和建议。  相似文献   

6.
该研究采用人群疏散模拟来评估山地住区的疏散能力和现行灾害响应预案,从建筑布局形式、路网结构、出入口分布和绿地形态等方面出发,基于模拟结果提出了人群的疏散组织方案。采用线程代理模型开展了人群疏散模拟,基于潜在路径、空间围合程度和绿地空间布局3个变量设立了对比组,分析了总体耗时、累计路径、拥堵特征和不同路段的人数变化,总结了山地空间结构对人群疏散行为和总体安全的影响机制,为中国西南山地城镇住区的疏散安全规划和适灾性设计提供了支撑。  相似文献   

7.
以信阳市和西安市为例,基于住区现状调查数据,运用综合指数法解析中小城市住区特征,并与特大城市进行比较﹒研究结论:构建了住区综合经济技术指标体系;中小城市与特大城市的住区存在差异;在"高强度、高密度"的住区规划趋势下,亟需关注人居环境﹒  相似文献   

8.
以人为本的住区规划策略   总被引:1,自引:0,他引:1  
文章阐述了居住区规划的目的和概念,简要介绍了以人为本的住区规划的策略,以期给人们提供一种适合我国国情的建立以人为本和谐住区的可操作方法。  相似文献   

9.
针对寒地城市因其特殊的气候特征,在一定程度上使寒地城市公共空间吸引力下降这一问题,阐述了广场作为城市室外公共空间的重要形式之一,其合理科学的设计有助于寒地城市环境质量的提高。以寒地城市广场绿化设计为出发点,分析了寒地城市广场绿化设计的特质及人们在广场中的活动规律和行为需求,提出了对于寒地广场绿化设计的一些想法。  相似文献   

10.
为探索促进居民休闲体力活动(LTPA)的多层住区建成环境空间特征,以邯郸市安居工程的4个多层住区为研究对象,采用实地踏勘、问卷调查及SPSS数据分析等研究方法进行了相关性分析.结果表明:休闲体力活动空间的组织特性、物理属性及空间特征3种建成环境因素与居民LTPA水平呈显著正相关;合理的组织空间分布和安全美观适宜的建成环...  相似文献   

11.
Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.  相似文献   

12.
The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.  相似文献   

13.
王慧 《科技信息》2008,(10):240-240
Wuthering Heights, Emily Bronte's only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.  相似文献   

14.
The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3~4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰~ -7.8‰, PDB) and matrix dolomites (-6.6‰~ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084~0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078~0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.  相似文献   

15.
何延凌 《科技信息》2008,(4):258-258
Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women's language from these perspectives: pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women's language, more attention should be paid to language use in social context. What's more, the linguistic phenomena in a speaking community can be understood more thoroughly.  相似文献   

16.
Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.  相似文献   

17.
以AC-13级配为基础,将橡胶颗粒代替部分集料掺入混合料中,以低温弯曲试验为评价方法对不同橡胶颗粒掺量下沥青混合料的低温抗裂性进行研究,并引入应变能密度值对混合料的低温抗裂性进行综合评价.试验结果表明:橡胶颗粒沥青混合料试件的破坏微应变均超过2 300,满足冬寒区的技术指标;无论是否掺加橡胶颗粒,随着温度的下降,沥青混合料破坏时的最大弯拉强度增大,弯拉应变降低,劲度模量增大;弯曲应变能密度在胶粒掺量为1%左右时具有较大的弯曲应变能密度值,此时橡胶颗粒沥青混合料具有较好的低温抗裂性.  相似文献   

18.
AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…  相似文献   

19.
理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。  相似文献   

20.
As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.  相似文献   

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