Flood Damage Reduction Program (FDRP) in Québec: Case Study of the Chaudiére River

This study presents the evolution of agreements between the governments of Canadaand Québec on flood damage reduction. In Québec, the implementation of a regulation about building in floodplains came about in 1983–1984. Today, this regulation takes the form of a policy called ``Policy of shores, littoral and floodplain protection'. Municipalities must adopt rules that concur with the principles of this policy.The Chaudiére River basin was selected for analysis of urban developmentduring the period following the application of building rules in flood-risk areas.Despite the ban on building in the strong current zone (0–20 year return periodflood zone), many buildings, essentially residential, have been erected in thiszone. These new constructions generally account for a low percentage of thetotal property value in the 0–100 year flooding area, but are legal since theyare connected to a water and sewage network that existed prior to the officialfloodplain regulation.Flood damage along the Chaudiére River will tend to increase for two reasons.Firstly, while respecting the policy mentioned above, sites are still available infloodplains for future development. Secondly, no structural flood protection workshave been erected in view of the fact they are only marginally profitable from anbenefit-cost point of view.     

Identification of ore extraction and metal working in ancient times: a case study of Sagalassos (SW Turkey)

The extensive territory of the ancient (Hellenistic to Byzantine) city of Sagalassos (SW Turkey) offered a rich variety in natural mineral resources. The frequent occurrence of iron slag in the excavations at the site proved the local working of metal. A geochemical prospection campaign was done in the territory of the ancient city in order to identify or discard the city and its territory as a self-sustaining metallurgical centre. Secondly, the geochemical impact of ancient metallurgy was investigated. Geochemical anomalies identified in stream sediments are explained by the presence of mineralised deposits and ancient metal working. Mg, Cr, Co and Ni anomalies point to chromite and chrysotile-magnetite deposits related to the basic rocks of the Lycian nappes in the area. Fe, V and Ti anomalies indicate the presence of iron mineralisations, which have been worked for iron production in ancient times. Finally, the association of P, Cu, Pb, Mn, As and Ag anomalies are an indicator of human activity at archaeological sites. Within the framework of this geochemical prospection, a metal working site apart from the city of Sagalassos was identified. Here, ore was both extracted and processed to workable iron.     

射线透射图像中轻物质自动识别算法的研究

目的：针对射线透射图像中轻物质的自动识别存在的难点问题进行研究。方法：提出了基于轮廓特征和灰度特征的识别算法，结果：详细地阐述了利用识别算法进行识别的过程；结论：给出了识别算法的实验结果。     

钢结构住宅体系墙板及墙板节点足尺模型振动台试验研究

本文对山东安尔发建筑科技有限公司开发的钢结构住宅体系的墙板及墙板节点足尺模型进行了模拟地震振动台试验研究，分析了该体系的自振特性、地震反应特征和破坏现象，特别对外墙板及内墙的节点的抗震性能进行了深入研究，得出了有益的结论，为钢结构住宅体系的进一步推广提供了试验依据。     

强震观测建筑结构的地震反应分析

选择取得强震观测资料的建筑结构为研究对象，采用有限元法建立结构的动力反应分析模型，利用SAP2000程序分析了结构的地震反应，并同实际记录到的结构地震反应进行了对比分析，讨论了结构模型参数估计和一些不确定因素对模型精度的影响。     

冀鲁豫交界区地下流体模糊熵值的变化与地震的关系

采用概率化预处理方法，把冀鲁豫交界区地下流体多种观测项目的观测值转化为概率值时间序列，然后计算其模糊从属函数。在此基础上计算该区地下流体构成的信息源系统的模糊熵值，分析了模糊熵值变化与1983年山东菏泽Ms 5.9地震和1985年河北任县Ms5.0地震的关系。结果显示，在这两次中强地震前分别有明显的减熵异常过程，并且一次比一次明显，中强地震都发生在低熵值处，震后恢复到高熵值的变化过程。这可能反映了地下流体构成的信息源系统在地震孕育和发生过程中的减熵有序变化。通过研究认为，该区模糊熵值减到0.907为发震前兆异常警戒线，并且离中强地震发生的时间越近，减熵过程越大；震级越大，减熵过程越明显，减熵时间越长。     

基于城区航空影像的变化检测

提出一种城区人工地物变化检测方法。其基本思想是：首先利用较简单方法进行变化检测，所检测出的变化都作为待选的变化；然后进行进一步的分析比较，从这些待选的变化中找出我们感兴趣的人工地物的变化。实验结果证明了该方法的有效性和可靠性。     

高层建筑地震反应全反馈主动TMD控制理论研究

本文应用最近提出的全反馈主动控制法对高层建筑地震反应进行了全反馈主动ＴＭＤ（调谐质量阻尼器）控制的理论研究，考虑了实时控制过程中控制力的时间滞后效应，并通过数值模拟分析了不同的反馈形式以及不同的时间滞后量对主动ＴＭＤ控制效果的影响。最后得出结论：对高层建筑地震反应实施全反馈主动ＴＭＤ控制，既能更有效地降低结构的位移反应和速度反应，又能大幅度地降低结构的加速度反应；且当控制力时间滞后量较大时，对主动     

采用基础摩擦隔震房屋高宽比限值的研究

大量的试验结果和地震经验表明，采用基础隔震方法能有效地提高建筑物的抗震能力，但建筑物的高度在什么范围，即建筑物的高宽比在什么范围内才适合采用这种方法，仍然是一个有待解决的课题。本文对采用基础滑移隔震多层砌体房屋在实际地震作用下的抗倾覆高宽比限值进行了研究，利用Ｗｉｌｓｏｎ－θ数值积分方法计算，得到了多层砌体房屋的高宽比限值的统计值。其数值结果可供编制建筑隔震设计规程参考。     

振动采油工艺及增产效果分析

振动采油工艺是近两年研究开发的一种物理采油新工艺，尽管起步晚，增产机理还不清楚，但它的应用效果及推广前景引起了人们的关注和重视。本文就这一工艺研究开发进展情况作了概述，地增产效果进行了分析。