结合DEM与淹没频率的水库水体动态遥感提取优化方法

由于云、雪及山体阴影造成的无效地表像元影响,利用遥感影像难以获取高精度的水库水体信息动态监测结果.论文在大津法的基础上,提出了结合DEM和淹没频率约束条件对水库遥感提取结果进行优化的方法(DF优化方法).基于Landsat系列卫星影像数据,使用改进的归一化差分水体指数(MNDWI),通过大津法初步提取水库水体信息.结合多期提取结果综合得到的淹没频率以及当期有效水体像元的淹没频率特征,填补了受云、雪等因素影响的无效像元.在此基础上综合高程及水体淹没频率信息,剔除了山体阴影及其他偶发性因素的影响.遴选全球九个不同类型水库验证了DF优化方法的有效性,结果显示DF优化方法能有效减小水库水体的提取误差.与全球水体数据集JRC MWH的直接修正结果相比,DF优化方法总体分类精度提高了13%,达到了95.67%.同时,结合同步卫星测高数据构建的水位－水面积关系模型,进一步验证了DF水面积提取结果的准确性.相较于JRC MWH的直接修正结果,DF优化方法提取结果构建的水位－水面积关系模型的RMSE降低了30%.此外,该方法可基于GEE平台实现,能快速完成长时序的水体动态提取,为全球大尺度范围内的水库相关研究提供基础.     

变质量二体问题及其解

该文采用Ｇｙｌｄｅｎ－Ｍｅｓｈｃｈｅｒｓｋｉｉ方程和Ｅｄｄｉｎｇｔｏｎ－Ｊｅａｎｓ定律研究了变质量二体问题并得到对于任意足值的Ｇ－Ｍ型变质量二体问题的解。结果表明由于主星的质量损失会使伴星的轨道半长径α产生一阶长期和周期项，轨道偏心率ｅ产生一阶周期和二阶混合项，近星点角角距ω产生一阶周期、二阶长期和混合项。文末，还对所得的结果进行了讨论。     

人体血清脂质过氧化物正常参考值的测定

本文就我省健康成人血清标本４３５份，用ＴＢＡ法进行测定脂质过氧化物．结果为ｘ＝３．２９±０．１５ｎｍｏｌ／ｍｌ，此结果可作为我省临床检测人体血清脂质过氧化物的正常参考值之依据．     

Membrane Insertion by Trichosanthin Using the Monolayer Method

A monolayer technique was used to investigate the interaction between the ribosome inactivating protein trichosanthin (TCS) and phospholipid membrane. The adsorption experiments show that the negatively charged 1,2-dipalmitoyl-sn-glycerol-3-phosphoglycerol (DPPG) causes obvious enrichment of TCS beneath the monolayer, indicating electrostatic attraction between TCS and the negatively charged phospholipid. When TCS was incorporated into the DPPG monolayer at low pH, it could not be completely squeezed out until the monolayer collapsed. The results suggest that the electrostatic attraction and the hydrophobic force are involved in the interaction between TCS and phospholipids at different stages. These findings may be correlated with the membrane translocation mechanism of TCS.     

Nest cell lining of the solitary beeHylaeus bisinuatus (Hymenoptera: Colletidae)

The nest cell lining ofHylaeus bisinuatus (Hymenoptera: Colletidae) was shown by high-resolution solidstate [¹³C]NMR to be composed of lipid polymer and protein. The lipid polymer was shown by reduction and subsequent GC/MS analysis to be comprised of -hydroxy fatty acids (C₂₀, C₂₂, C₂₄ and C₂₆) and fatty alcohols (C₁₆ to C₃₀). The protein portion of the lining had a silk-like amino acid composition.     

平面物系与平面桁架的计算机方法

本文研究了平面物系与平面桁架的计算机方法编制了相应的计算程序，算例表明：与传统的手算方法比较，电算方法具有计算效率高通用性好的优点     

丹参醌类抗氧化剂的结构特征与活性关联(Ⅰ)

对双氢丹参醌Ⅰ和丹参醌Ⅱ在油脂中的抗氧化作用及构效关联进行了量子化学研究.结果表明，抗氧化剂与油脂中碳中心自由基（R     

Interaction of C-reactive Protein with Artificial Lipid Containing Monolayers Studied by Ellipsometric Microscope

ＩｎｔｒｏｄｕｃｔｉｏｎＣ－ｒｅａｃｔｉｖｅｐｒｏｔｅｉｎ（ＣＲＰ）ｉｓａｋｉｎｄｏｆａｃｕｔｅｐｈａｓｅｐｒｏｔｅｉｎｗｈｉｃｈｅｘｉｓｔｓｅｘｔｅｎｓｉｖｅｌｙｉｎｖｅｒｔｅｂｒａｔｅｓａｎｄｍａｎｙｎｏｎ－ｖｅｒｔｅｂｒａｔｅｓ．Ｉｔｉｓｓｙｎ...     

Lipid Peroxidation-Mediated Telomere Shortening in Hydroxyl Radical-Induced Apoptosis in HeLa Cells

IntroductionReactive oxygen species(ROS) generation has beenfound to be an important event in apoptotic tumorcell death induced by various anti- cancer agentssuch as camptothecin,vinblastine,inostamycinand adrimycin[1] .On the other hand,ROSscavengers such as N- acetyl- L- cysteine(NAC) andglutathione(GSH) have been found to inhibitapoptosis induced by TGFβ- 1 ,TNF-α and growthfactor deprivation in IL- 3 - dependent murine pro- Blymphocyte,murine T cell hybridoma,humanovarian- carci…