Remote sensing of spatial patterns of urban renewal using linear spectral mixture analysis: A case of central urban area of Shanghai (1997―2000)

It is very important to integrate remote sensing with urban geography that the spectral mixture analysis technique is applied to urban land cover evolvement and its eco-environmental effect. Urban land cover is mainly composed of complicated artificial materials, which is the key factor to limit the development of the spectral mixture analysis technique. There are two main aspects in which the technique of spectral mixture analysis is applied to urban geography： one is to calculate vegetation fraction; the other is to build quantitative model of the urban impervious surface obtained from the combination between high albedo fraction and low albedo fraction. The technique of spectral mixture analysis is firstly applied to study urban renewal pattern, scale and mode which happened in Shanghai City from 1997 to 2000,     

Genetic analysis and molecular mapping of a presenescing leaf gene psll in rice （Oryza sativa L.）

A rice psl1 （presenescing leaf） mutant was obtained from a japonica variety Zhonghua 11 via radiation of ^60Co-γ in M2 generation. Every leaf of the mutant began to wither after it reached the biggest length, while the leaves of the wild variety could keep green for 25--35 d. In this study, genetic analysis and gene mapping were carried out for the mutant identified. The SSR marker analysis showed that the mutant was controlled by a single recessive gene （psl1） located on chromosome 2. Fine mapping of the psl1 locus was conducted with 34 new STS markers developed around psl1 anchored region based on the sequence diversity between Nipponbare and 93-11. The psl1 was further mapped between two STS markers, STS2-19 and STS2-26, with genetic distances of 0.43 and 0.11 cM, respectively, while cosegregated with STS2-25. A BAC contig was found to span the psl1 locus, the region being delimited to 48 kb. This result was very useful for cloning of the psl1 gene.     

Synthetic seismograms of ground motion near earthquake fault using simulated Green’s function method

Seismograms near source fault were synthesized using the hybrid empirical Green＇s function method where the discretely simulated seismic waveforms are used for Green＇s functions instead of the observed waveforms of small earthquakes. The Green＇s function seismic waveforms for small earthquake were calculated by solving wave equation using the pseudo-spectral method with the staggered grid real FFT strategy under a detailed 2-D velocity structure in Kobe region. Magnitude and seismic moment of simulated Green＇s function waveforms were firstly determined by using the relationship between fault length and corner frequency of source spectrum. The simulated Green＇s function waveforms were employed to synthesize seismograms of strong ground motion near the earthquake fault. The synthetic seismograms of the target earthquake were performed based on the model with multiple source rupture processes. The results suggest that synthesized seismograms coincide well with observed seismic waveforms of the 1995 Hyogo-ken Nanbu earthquake. The simulated Green＇s function method is very useful for prediction of the strong ground motion in region without observed seismic waveforms. The present technique spreads application field of the empirical Green＇s function method.     

规范家庭养老保障制度问题研究

社会养老不能取代家庭养老。在社会转型时期，我国家庭养老保障制度遇到诸多困难并引发一系列家庭矛盾。因此，必须合理界定赡养人的范围、明确家庭养老的内容、成立专门的家庭养老管理机构、严惩不履行赡养义务者。     

全面建设小康社会与人的全面发展

人的全面发展是共产主义的理想目标和本质规定，人的全面发展也是社会主义现代化建设的内在要求。把人的全面发展作为全面建设小康社会的根本目标是据此确立的。全面建设小康社会与人的全面发展是互为前提和基础、相互促进的关系。全面建设小康社会促进了人的全面发展；而促进人的全面发展又推动了全面推动小康社会进步。我们要在全面建设小康社会过程中，努力促进人的全面发展。     

衡枣高速公路盘古祠边坡稳定性分析

盘古祠边坡由于边坡初步设计不合理，2002年4月出现了滑坡，体积达万余m^3，滑坡治理费达40万元．为了对设计和施工起到超前预报与辅助决策的作用，本文对大量边坡工程实例进行了集成，建立了预测安全系数的ANN模型，并应用ANN技术对盘古祠边坡设计方案的Fs进行了计算，结果表明，初步设计方案导致滑坡是必然的．同时又进一步对治理后的边坡进行了Fs预测，治理方案由于Fs值较高，则是可行的，能保证更改设计后的边坡稳定。     

对北京市海淀区部分健身健美操习练者的社会学调查与分析

本文通过文献资料法。实地考察法，问卷调查法等方法采考察当前北京市健身健美操运动的实际情况，通过健身健美操参与者的社会学比较分析，了解其习得体验与心态，选择此项活动的原因及愿望，本文分析了当前的优势与不足，并为更好地开展健身健美操运动，提出如下建议：1．在中青年女性中重点加强健身健美操的宣传；2．健身服务机构尽量提供灵活机动的锻炼时间．采用科学有趣、针对性强的健美操进行辅导与教学；3．教练员在辅导过程中应尽可能为学员的社交创造条件．     

金融危机发生时资金运作的数学模型研究

站在投资者或投机者的立场上，根据金融危机发生时危机发生国制定的各种政策法规，建立相应的数学模型，分析如何进行资金运作才能以最快的速度、最小的损失将资金从危机发生国撤离，从而保证己方资金的安全性。     

改进脱硅机刷锅方法探讨

文章介绍了脱硅机存在的问题及对生产、清理造成的影响 ,以及对其进行改进的结果。