电离层F层动力学数值模拟

中、低纬电离层Ｆ层动力学的数值模拟通过研究等离子体的连续性方程和运动方程进行，等离子体的输运过程顺电磁漂移的运动坐标系中运算。计及双极扩散、温度、中性风、电磁漂等影响。     

驼奶中氨基酸和人体必需微量金属元素的测定

对驼奶中氨基酸和人体必需微量金属元素进行了测定,并同牛奶做了比较．计算结果表明：驼奶含氨基酸总量为牛奶的１．０７倍;人体必需氨基酸总量为牛奶的１．０８倍;人体必需微量金属元素含量多数高于牛奶．     

In-situ cosmogenic 36Cl denudation rates of carbonates in Guizhou karst area

This study quantifies surface denudation of carbonate rocks by the first application of in-situ cosmogenic36Cl in China. Concentrations of natural Cl and in-situ cosmogenic36Cl in bare carbonates from Guizhou karst areas were measured with isotope dilution by accelerator mass spectrometer. The Cl concentration varied from 16 to 206 ppm. The 36Cl concentrations were in range of (0.8-2.4)106 atom g-1 , resulting in total denudation rates of 20-50 mm ka-1 that averaged over a 104-105 a timescale. The 36Cl-denudation rates showed roughly a negative correlation with the local mean temperature. This preliminary observation may suggest the variations of proportions of chemical weathering and physical erosion in denudation process, depending upon local climatic conditions.     

厚唇光唇鱼(Acrossocheilus labiatus)和侧条光唇鱼(A.parallens)的比较研究

通过对其形态、解剖及部分同工酶表型的比较研究,发现厚唇光唇鱼(Acrossocheiluslabiatus)和侧条光唇鱼(A.parallens)的差别比较显著,认为二者都是有效种,但它们各自占领不同的水域,其分布受到南岭的阻隔.     

制备工艺对ATO超细粉体导电性能的影响

采用化学共沉淀法制备锑掺杂二氧化锡（ATO）超细导电粉体,研究了反应温度,滴定终点pH值,掺锑量及锻炼温度对粉体导电性的影响,并对实验结果进行了讨论。     

Effect of Mn cluster on the formation of superoxide radicals in photoinhibition of photosystem Ⅱ

To further realize the action of superoxide radicals (O₂^{− .}) in photoinhibition of photosystem Ⅱ (PSⅡ), we employed 5,5-dimethyl-1-pyrroline-N-oxide (DMPO) as a spin trap, associated with EPR spectroscopy, to study the effect of illumination time on O₂^{− .} formation during high light photoinhibition in PSⅡ membranes and Mn-depleted PSⅡ membranes. Results indicated that the removal of Mn cluster from PS
membranes has a strong influence on the dynamics of superoxide formation. The relative mechanism was also discussed. These novel findings may further promote the studies of the structure and function of PSⅡ and the mechanism of photoinhibition.     

Microstructural characterization of cobalt treated by laser surface melting under different powers

The effect of laser power outputs on microstructural evolution of cobalt(Co) treated by laser surface melting(LSM) are systematically characterized by electron channeling contrast and electron backscatter diffraction techniques equipped in scanning electron microscope. Results shows three distinctly different microstructural characteristics from surface to substrate in Co samples treated by LSM: solidification substructure(cell and cellular-dendritic) and phase transformation structure(ε martensitic plates) in the elongated columnar grains for melting zone(MZ), ε martensitic plates in insufficient recrystallization grains for heat affected zone(HAZ),and fully recrystallization microstructure for base metal(BM). Although the similarity of general evolution profiles for LSM treatment on Co under different laser power outputs, the trend of the penetration and width depth for MZ is obviously increased with increase of laser power outputs, and cellular substructure is more pronounced in the specimens treated by the higher power. The metallurgical mechanisms for LSM treatment of Co, which are closely related to the interaction between heat sources and metal, are systematically discussed in this paper.     

岩墙群圆柱状节理的发现和成因机制探讨

在鲁西地区前寒武纪基性岩墙群内发育一种罕见的原生圆柱状节理,由同轴圆柱状节理和放射状节理组成,垂直于岩墙走向,沿岩墙走向排列,是一种指示岩浆水平侵位的流动构造。岩墙发育圆柱状节理表明出露的是岩墙的顶部,反映基性岩墙群侵位时岩浆具有黏滞性剪切作用的流变学特征。柱状节理长轴的倾伏向垂直岩墙的两壁,可以反映岩墙的产状。岩墙圆柱状节理的倾伏角反映了岩墙所在地块的掀斜程度。岩墙发育圆柱状节理表明岩墙侵位时地块已经处于上地壳脆性构造环境,中元古代鲁西地区是一个脆性伸展的大地构造环境。     

基于层次分析法的流域水资源配置权重测算

将用水按性质划分为生活、农业、产业、生态四类，并在此基础上建立了流域水资源的区域权配置模型．为使该模型更具有操作性，采用层次分析法（AHP）对模型的关键因子——生活、农业、产业、生态四类不同性质用水的权重进行了测算．     

空间机构的位置分析

本文以“基本方向”确定空间机构中各构件的位置,并基于“基本方向”之间的关系以及机构的环路封闭条件,建立了机构位置分析的数学模型。将优化技术和求解非线性方程组迭代技术结合起来,提高了解决问题的可靠性及效率。