OH自由基与CS2反应机理的理论研究

用量子化学密度泛函理论(DFT)和G3方法，对OH自由基与CS2的反应进行了研究,在B3LYP／6-31G*,B3LYP／6-311 G(3df，3pd)G3计算水平上,优化了反应势能面上各驻点的几何构型，并对它们进行了内禀反应坐标(IRC)计算和振动分析，以确定中间体和过渡态的真实性，研究结果表明：OH自由基与CS2反应的产物为COS和SH，计算结果与实验结果一致。     

零上低温对甘蓝幼苗逆境指标的动态影响

以甘蓝幼苗为材料，研究了零上低温对其部分生理生化指标的影响．结果表明：随着低温(5℃)处理时间的延长，甘蓝幼苗体内的脯氨酸含量、总糖、可溶性糖含量、丙二醛含量逐渐升高．而脂肪酸、蛋白质含量逐渐降低，体内SOD，POD活性先升高再降低．     

不同光照水平下白酒草 (Conyza japonica)氮、镁元素的分配

对多年生草本植物白酒草在高、中、低3个光照水平下，氮和镁在根、茎、叶中的分配进行了研究．结果表明：光照水平显著的影响了白酒草对叶和根的氮和镁的分配，而对于氮和镁在茎中的分配没有显著影响．高光照水平下，更多的氮和镁被分配到根中．低光照水平下．白酒草将较多的氮和镁分配至叶中．不同光照水平下白酒草氮镁分配方式和生物量分配方式的相似性说明．在氮和镁的分配利用上，植物也存在功能平衡作用．是植物生长和光合作用反馈调节的结果．     

铁磁颗粒膜自旋激发谱和热力学性质研究

求出了铁磁颗粒膜的自旋波激发谱和自旋极化激发谱随颗粒粒径和温度的变化规律，以及膜的磁化强度、磁化率、热容量．以（α-C：H）1-xCox颗粒膜为例作具体计算．结果表明：颗粒膜的自旋波激发谱的频率随颗粒粒径增大而减小，与温度无关；而颗粒膜的自旋极化激发谱与温度有关，表现出与铁磁块状晶体自旋波谱不同的变化特征．在零级近似下，由颗粒膜自旋波激发谱引起的磁化强度、热容量随温度变化规律与块状晶体相同，而一级近似下表现出颗粒膜与块状晶体的偏离．     

论"数字校园"建设与系统设计

随着我国信息化建设步伐的加快，“数字城市”建设日益受到政府和社会各界的普遍关注和重视。“数字校园”作为“数字城市”的一个缩影，具有“数字城市”的基本特点和功能，对于我国高等教育的现代化建设具有重要意义。文中介绍了“数字校园”系统的建设原则和结构设计，并利用Visual C＋＋和地理信息控件MapX，实现了“数字校园”系统中的地理信息基本功能子系统。     

铁路轨道几何状态评价方法比较

为了及时掌握列车反复荷载作用下的轨道几何形位状态，各国铁路管理部门都采用了现代轨检车和计算机处理技术来监测其变化情况，并制定了相应的评价标准．在此，通过对实测数据的分析，比较不同评价方法和标准的异同点，并对我国铁路轨道几何形位的养护和评价方法提出了参考性意见．     

Construction of a genetic map with SRAP markers and localization of the gene responsible for the first-flower-node trait in cucumber (Cucumis sativus L.)

With an F2 population from the cross of two cucumber inbred lines, S06 and S52, sequence-related amplified polymorphism (SRAP) was used to construct a genetic linkage map in cucumber (Cucumis sativus L.). Sixty-four SRAP primer combinations generated 108 polymorphic bands in the F2 population analysis. The average of polymorphic bands produced by one primer pair was 1.5, and the maximum was 5. Using Mapmaker 3.0, a linkage map was constructed, which consisted of 77 SRAP markers distributed in nine linkage groups (LOD≥3.0) and spanned 1114.2 cM with an average interval of 14.5 cM between markers. The gene for the first-flower-node trait, termed ffn, was mapped to linkage group Ⅸ, flanked by DC1EM5 and ME7EM2A at 10.3 cM and 12.1 cM distance, respectively.     

Combined adjustment project of national astronomical geodetic networks and 2000'' national GPS control network

The combined adjustment project of the nationwide astronomical geodetic networks and 2000' national GPS control network involve 48519 terrestrial observational stations and 2666 GPS observational stations. In the terrestrial network, 25107 stations are height fixed and 23412 stations are in three dimensions. 440793 terrestrial observations and 183668 unknowns are involved in the adjustment. The three-dimensional observational models for the adjustment have been established. The crustal deformation influences and corrections are researched. Fast methods of solving partitioned adjustment for super large-scale geodetic network have been studied. The standard deviations of three-dimensional coordinates for all stations are evaluated. As a result of the combined adjustment, a unified national geodetic network with nearly 50000 stations is established, the high accurate three-dimensional geocentric coordinates are obtained. The standard deviation for geoid is averagely 0.2 m, for vertical deflection is about 1.5″, for the horizontal position is about 0.12 m, for the geodetic height is about 0.14 m, and for the three-dimensional position is averagely 0.3 m.     

A template of rat brain based on fMRI T*2 imaging

The development of functional magnetic resonance imaging (fMRI) technology has made it possible to carry out functional brain imaging experiments in small animals. Usually, group data is required to form the assessment of population, which can not only increase the sensitivity of the overall experiment, but also allow the generalization of the conclusion to the whole population. In order to average the signals of functional brain images from different subjects, it is necessary to put all the mapping images into the same standard space (template image). However, up to now, most animal brain templates remain unavailable and it must be done by ourselves. In this study, a template image based on the brains of eight male Wistar rats is obtained, and it is successfully used in our present Alzheimer disease (AD)-like rat model studies as template for spatially normalizing images to the same stereotaxical space. The fMRI results processed with statistical parametric mapping (SPM99) software are in agreement with the results from immunohistochemical experiment, which proves that this method is universally applicable to the pathologic models of other small animals and to human brain lesion studies.     

Modal extension rule

Modal logics are good candidates for a formal theory of agents. The efficiency of reasoning method in modal logics is very important, because it determines whether or not the reasoning method can be widely used in systems based on agent. In this paper, we modify the extension rule theorem proving method we presented before, and then apply it to P-logic that is translated from modal logic by functional transformation. At last, we give the proof of its soundness and completeness.