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1.
一、这是一个什么样的时代 狄更斯在《双城记》的开头写了这样的一段话:“这是最好的时代,这是最坏的时代;这是智慧的时代,这是愚蠢的时代;这是信仰的时期,这是怀疑的时期:这是光明的季节,这是黑暗的季节;这是希望之春,这是失望之冬;人们面前有着各样事物,人们面前一无所有;人们正在直登天堂,人们正在直下地狱。”  相似文献   

2.
安庾心 《园林》2011,(12):38-41
这是最好的时代,这是最糟的时代;这是理性的时代,这是疑迷的时代;这是信仰的时代,这是迷茫的时代;这是希望之春,这是失望之冬;人们面前拥有一切,人们面前一无所有;人们由此升入天堂,人们由此坠入地狱。——摘自狄更斯的《双城记》20年前,我曾在南非的高中读过狄更斯的这部小说。我想,用以上这句评论来评点当今中国的景观设计的状况是最合适不过。简单说来,我们是在一片混乱中艰难地摸索。高校教育的举步维艰及混乱无序,这在我执教指导香港大学的景观设计硕士生时,感触极深。  相似文献   

3.
<正>这是最好的时代,这是最坏的时代;这是智慧的时代,这是愚蠢的时代;这是信仰的时期,这是怀疑的时期;这是光明的季节,这是黑暗的季节;这是希望之春,这是失望之冬;人们面前有着各样事物,人们面前一无所有;人们正在直登天堂,人们正在直下地狱。狄更斯的《双城记》以这样的旷世名言开头,高度概括了时代变迁的迅速,也展示了其中无数的物是人非,正如风生水起的城镇建设上,并非是建筑物的城镇化,更应该是人全面发展的城镇  相似文献   

4.
吴思语 《建材与装饰》2009,(9):I0039-I0040
“这是心的呼唤 这是爱的奉献 这是人间的春风 这是生命的源泉 只要人人都献出一点爱 世界将变成美好的明天……”曾几何时,韦唯的这首《爱的奉献》红遍大江南北。自去年5·12以来,这首歌再度被人们广泛传唱—只要人人都献出一点爱,灾区一定会变得更加美好。  相似文献   

5.
这是一个关于灭火英雄和纵火天才的故事,这是一次关于悲天与悯人的抗辩,这是一场关于拯救与毁灭的斗争,这是一轮关于生存与毁灭的较量,这是一回关于沉沦与重生的新的注释……这一切就铸就了影片《烈火燃城》中的那些火之精灵们。  相似文献   

6.
保卫世界杯     
这是一个热血沸腾的夏日,这是一个激情飞扬的夏日,这是火一样鲜红的夏日,这是海一样激荡的夏日。绿茵沙场,绝地英雄,狙击,冲锋,对垒,轻盈刁钻的弧线,震耳欲聋的呐喊,一往无前的勇气,功亏一篑的泪水,所有的人都为之疯狂的日子,这,是属于足球的节日。  相似文献   

7.
为军旗添彩     
八月,军旗飘飘。我们伫立在这飘扬了76年的军旗下,此时此刻,心潮澎湃,感到无比的骄傲。这骄傲属于强大的中国,这骄傲属于每一位为之奋斗的军人,这骄傲属于过去和充满希望的未来。更感到肩头沉甸甸的责任。这责任是时代赋予的神圣使命,这责任系着祖国现代化建设和人民生命财产安全,这责任是理想的坐标,这责任是前进的力量源泉,这“责任重于泰山”!党的十六大,吹响了全面建设小康社会,开创建设中国特色社会主义新局面的战斗号角,唱响了中华民族伟大复兴的最强音。这是时代的呼唤,历史的选择,人民的期盼。作为党绝对领导下的公安消防部队,是全…  相似文献   

8.
《广东建材》2005,(5):97-97
不知不觉,刚好五年,这五年是多么艰辛、这五年是多么充实:这五年是为广东环保节能事业做出贡献的五年,这五年是发展公司走向成功的里程碑。  相似文献   

9.
这是一幕6000官兵的血性冲锋,这是一段全面创优的跃升轨迹,这是一场闪耀江淮的橙色突击。  相似文献   

10.
这是一起令人揪心的悲惨事故,这是一起叩问灵魂的火灾案例,这是一个原本不该发生的悲剧,这是一个原本和睦幸福的家庭,不料,因为无知和盲信,生命在此打结。  相似文献   

11.
基坑开挖过程中m参数的选取分析   总被引:12,自引:0,他引:12  
在采用杭州饱和软粘土进行室内三轴试验模拟基坑开挖时应力路径的基础上 ,分析了m参数随应力路径、应力水平、应变方向的变化规律 ,获得了考虑应力路径影响的土体的本构模型 ,同时提出了用抗剪强度法确定m参数 ,并探讨了基坑开挖全过程设计中m的选取问题。  相似文献   

12.
Pollution of groundwater and soil caused by volatile organic chloride such as trichloroethylene (TCE) is normally detected by measurement of the groundwater, but a pollution source and a pollution range could not be specified only by the measurement of the groundwater. A soil gas investigation by a detection tube method detects components contained in soil gas of a surface layer by utilizing high volatility such as TCE, and surface pollution and range are estimated. Here, a soil gas investigation is performed and pollution source points are estimated by considering ground water science and geochemical examination in tetrachloroethylene (PCE).

PCE in ground water in a polluted district is measured and its change is observed. Furthermore, ion components in the ground water are measured, hexadiagram and trilinear diagrams are made and determination of quality of the groundwater is carried out.

From the gas investigation result concentration contours are made on the points on a map made by the previous hearing investigation.  相似文献   

13.
作为当今社会的关键性资源,知识管理成为研究和应用人员普遍关注的问题为了研究知识表示的数学理论基础,定义了一种知识表示模型,以库所、变迁和弧等组成的有色多元组集合表示知识库系统,单个知识对象由元组表示,运用替代变迁对知识进行层次化和结构化的系统表示,以城市给水管网设备系统为例说明该模型的应用  相似文献   

14.
The natural decay of a radionuclide during detainment in a reservoir by large scale circulation processes is considered under steady state conditions. It is shown that when the residence time distribution is a step function, a one-parameter model is defined with the least possible effluent radioactivity. A second one-parameter model, yielding significantly greater radioactivity, is defined if the reservoir contents are uniformly mixed. Reservoir models of higher complexity may be constructed by a systematic linking together of the one-parameter models. Effluent radioactivities determined by the only possible two-parameter models are less than or equal to that of the uniformly mixed model. This fact is demonstrated by several specific examples.  相似文献   

15.
本文采用桩与土共同作用的线性分析方法 ,解得复合地基桩土分担荷载 ;再利用集中力作用下土中应力解(Mindlin 193 6)求得桩在土中某点产生的应力 ,利用矩形均布荷载作用下土中应力分布解求得桩间土荷载在土中某点产生的应力 ;最后叠加得到土中某点的附加应力。根据“土中某点的附加应力与饱和自重应力之和小于该点湿陷起始压力 ,则该点不湿陷”的准则 ,分析湿陷性桩间土的承载力在复合地基中的利用价值  相似文献   

16.
柱下独立基础偏心荷载作用下,《建筑地基基础设计规范》(GB 50007—2002)采用简化公式计算地基冲切力,即忽略地基净反力的实际分布,而简单地采用基础边缘的最大净反力进行计算。考虑偏心荷载作用下地基净反力分布变化,假设地基净反力为线性变化,推导了地基冲切力的精确计算公式,并对目前《规范》简化计算公式进行了误差分析。算例结果表明,冲切力简化公式虽然偏于安全,但其计算误差主要随着基础有效高度、地基最大和最小净反力的差值而变化,最大误差可能达到15%以上。当独立基础有效高度较小、地基净反力变化较大时,需要根据地基冲切力的精确计算公式进行基础高度设计。  相似文献   

17.
Drawing upon research undertaken for the Italian Ministry of Cultural Heritage and Activities by a team at the University of Milan, an emerging and converging conception of landscape which is shared by many nations in Europe is identified. It is characterized by the integration of culture, by a shift of emphasis from places of excellence to consideration of the whole territory, by the wish to conserve cultural identity and by a concern for the quality of life of whole populations. In addition to regarding the landscape as an artefact, it can also be regarded as a document, an archive or a palimpsest. Shortcomings in the way that landscapes are currently read are identified, and the range of criteria employed to assess the values of particular landscapes are considered. Finally, there is a plea for a serious exchange of information regarding methodology and operational expertise, in the light of the European Landscape Convention.  相似文献   

18.
《Soils and Foundations》2006,46(4):537-544
A rational method for evaluating the skin friction of non-displacement piles in sandy soils is presented by reconsidering the model which has already been proposed by the authors. The revision of the model is mainly made by assuming the soil-pile interaction mechanism as a simple direct shear mode in relation to the large strain state of soils. The model is characterized by a coefficient of effective horizontal stress averaged through the whole length of the pile derived as a function of a large strain state friction angle. The characteristics and ability of the model are shown by the parametric studies and the applicability of the model is verified through a database of full scale pile load tests.  相似文献   

19.
Drawing upon research undertaken for the Italian Ministry of Cultural Heritage and Activities by a team at the University of Milan, an emerging and converging conception of landscape which is shared by many nations in Europe is identified. It is characterized by the integration of culture, by a shift of emphasis from places of excellence to consideration of the whole territory, by the wish to conserve cultural identity and by a concern for the quality of life of whole populations. In addition to regarding the landscape as an artefact, it can also be regarded as a document, an archive or a palimpsest. Shortcomings in the way that landscapes are currently read are identified, and the range of criteria employed to assess the values of particular landscapes are considered. Finally, there is a plea for a serious exchange of information regarding methodology and operational expertise, in the light of the European Landscape Convention.  相似文献   

20.
建设项目动态联盟收益分配改进研究   总被引:2,自引:0,他引:2  
随着建筑市场竞争激烈程度日益提高,动态联盟这一新型的组织模式已经成为建筑伙伴企业追求自身发展壮大并获得竞争优势的重要战略,而建立伙伴间合理的收益分配机制又是保证建设项目动态联盟高效运转的关键要素。盟主企业通过设计正式契约引入激励机制,以提高伙伴的努力水平,从而保证联盟的稳定运行和项目目标的实现,联盟收益分配对象由盟主和合作伙伴共同确定,业主以及项目利益相关者对项目价值的认可也应作为联盟收益分配的对象。针对以联盟确定的伙伴努力水平所实现的收益为收益分配对象的不公正性,根据建设项目动态联盟的实际情况,建立以联盟、业主、项目利益相关者等确定的伙伴最终实现的项目价值为收益分配对象的模型,并通过对伙伴所完成分包项目价值状态的确认,确定一个奖励额度,实现对正式契约和模型的改进,采用遗传算法对模型进行求解,算例结果表明,改进后的模型极大地提高了伙伴的努力程度,提高了收益分配的合理性。  相似文献   

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