玛纳斯县城高危震害小区的综合判定

在以玛纳斯县城各居委会小区为单元进行震害预测的基础上,分析了人员伤亡数量,社会财富和无家可归人数三项指标在评判高危震害小区中占有的地位。建立了高危震害小区判定指标公式。指出了玛纳斯县城内的第４,第９居委会小区为高危震害小区。把对高危震害小区的判定从单一定性化推向综合定量化做了一次尝试。     

新疆破坏性地震损失“盲估”方法

通过总结新疆近年来的震害预测研究成果和震害损失评估工作的实践,给出了震后损失快速评估方法－“盲估”方法。提出今后震灾评估的发展方向是建立震后趋势快速判定计算机管理系统。     

新疆博格达山北麓山前断裂西段的断裂组成及其在全新世时期的活动

博格达山北麓山前断裂西段全长１４０ ｋｍ ,由５ 条雁列状排列的逆断裂组成。全新世时期,古牧地断裂的最新活动发生在６．８２±０．５４～４．８７±０．３９ Ｋａ Ｂ．Ｐ．之间;四工河口断裂切割Ⅱ级河流阶地,最新活动时间与古牧地断裂大体相同;泉泉子断裂切割Ⅰ级河流阶地,最新活动发生在３．７５±０．４１ Ｋａ Ｂ．Ｐ．;热水河断裂及东风牧场断裂由于缺乏断代年龄实测数据,无法对其最新活动时间作出判断,但是推断它们也是全新世活断裂     

萝北井水位年动态变化研究

详细讨论了萝北井的年动态变化趋势,并分析了其成因机制。结果表明萝北井各年动态变化曲线出现的Ｗ形异常与地下构造活动无关,主要是由于农田用水引起。     

地震折射波法探测研究张强地区的构造特征

张强地区位于中朝地台北缘的吉黑地槽区,其基底岩系和构造特征与中朝地台的基底和构造特征有明显的差别,通过２００ｋｍ的折射波法探测,得出如下结论：（１）本区基底构造线方向呈现近ＳＮ或ＮＮＷ向,二条此方向的断层划分出三个构造单元。（２）该区内中生代前基底分为两套地层,其岩性、断层特征和基底埋深均有差别。     

利用GCV优化的正则化方法对硬X射线望远镜图象重建研究

图象重建是一个求逆过程具有不适定性。本文介绍的是一种从少数投影数据进行图象重建的线性代数法－Ｐｈｉｌｌｉｐｓ－Ｔｉｋｈｏｎｏｖ正则化方法,同时选择优化工具ＧＣＶ确定最优的正则参数。为验证该方法,我们对日本Ｙｏｈｋｏｈ卫星上塔载的硬Ｘ射线望远镜（ＨＸＴ）拍摄的太阳图象进行重建。     

云南楚雄前陆盆地晚三叠世沉积建造及盆地演化

根据沉积建造的类型、系列和体态认为楚雄盆地在晚三叠世经历了３个明显的发育阶段：第一阶段为早期聚敛碰撞阶段,发育了黑色页岩建造和碳酸盐复理石建造;第二阶段为构造相对静止期,发育了火山复理石建造和陆源复理石建造;第三阶段为盆地充填阶段,发育了海相磨拉石建造和陆相磨拉石建造。３个阶段中的沉积建造属于次稳定型和非稳定型两大类。     

单元—超单元填图方法在基性岩区的应用

借鉴花岗岩区单元—超单元填图理论方法 ,通过对乌增苏辉长岩体岩石学、岩石化学、微量元素、稀土元素等特征的研究 ,将岩体划分为四个单元     

Positively Drifting Structures During the 18 March 2003 Solar Flare

We analyze the high-frequency drift radio structures observed by the spectrometer at Purple Mountain Observatory (PMO) over the frequency range of 4.5 – 7.5 GHz during the 18 March 2003 solar flare. The drifting structures take place before the soft X-ray maximum, almost at the maximum of hard X-ray flux at 25 – 50 keV. For the first time, the positive drift in this kind of radio structures is detected in such a high frequency range. Their global drifting rate is roughly estimated as 3.6 GHz s⁻¹. They appear in four groups, lasting in total for less than 6 s, and have a broad bandwidth of more than 2 GHz but a smaller ratio of the bandwidth of the drifting structures to mean frequency than that of the lower frequency range. The lifetime of each individual burst in this event can be derived by using the high temporal resolution of the spectrometer at PMO and has an average value of 36.3 ms. Since the negative drifting structures observed in the 0.6 – 4.5 GHz frequency range were interpreted to be a radio signature of a plasmoid ejected upward (moving out of the Sun), the present observation may imply that it is possible for a plasmoid to move downward during a solar flare. However, for a confirmation of this suggestion direct radio imaging observation would be needed.     

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