水合——脱水处理对杂交油菜种子活力的影响

自然老化和人工加速老化的杂交油菜种子经过水合一脱水处理以后，其活力和发芽率有显著。主要表现在生理生指标有明显改善，种子的电导率，糖分浸出量均比对照明显降低，脂肪酶活性显著降低，但氨酶活性有所提高，种子的类脂过氧化反应明显减轻。在水合一脱水处理中，以水分平衡一浸泡一脱水处理效果最佳。     

应用电镜原位分子杂交技术对腺病毒DNA在宿主细胞内进行定位

以Biotin标记的dATP(Bio-7-dATP)通过缺刻翻译(Nick Translation)制备腺病毒的基因组探针,建立了电镜原位杂交技术,并研究腺病毒感染的HeLa细胞内病毒DNA的分布。结果表明,免疫胶体金颗粒特异地标记在腺病毒感染的细胞核内,并且在核内呈区域性分布。整装抽提后的细胞原位杂交结果显示出,胶体金颗粒呈族状马串珠状结合在核骨架上,从而在形态学上证实了腺病毒DNA与核骨架的紧密结合关系。     

杂交粒子群算法在列车运行调整中的应用研究

针对列车运行调整存在约束条件多、求解难度大等问题, 结合城市轨道交通列车运行特点, 建立了优化的列车运行调整模型。在此基础上, 引入遗传算法中的杂交思想, 采用改进后的粒子群算法对此模型进行求解, 给出了求解算法的具体步骤, 并采用西安地铁2号线数据进行仿真验证。结果表明, 采用杂交粒子群算法解决列车运行调整问题是一种有效的方法, 并且其优化能力优于标准粒子群算法。     

Effects of main factors on remedying northern landscaping water by hybrid ecological filter

Natural zeolite and coal cinder were layered as main packing medium of the ecological filter instead of traditional filling to remedy the static lake water in Northern China.The ecological filter was running in a combined upward and downward flow mode.Dynamic experiments were carried out to study the effects of retention time and ambient temperature on pollutants’ removal efficiency of the hybrid ecological filter.The function of plant was also studied by contrast test.It is showed that the removal efficiencies of NH4+-N and TP are increased when the retention time is changed from 1 h to 2 h and 4 h,but the removal efficiency of TN is decreased,the removal efficiency of NH4+-N is increased from 91.5% to 98% and that of TP is increased from 31.8% to 52.5%.When the temperature declines,the temporal removal efficiency of NH4+-N is reduced,but the removal efficiency of 24 h and 48 h is remained.The removal efficiency of TP after 24 h and 48 h is decreased when the temperature declines evidently.The retention time plays an important role in NH4+-N and TP removal,and the ambient temperature is significant for TP removal.The plant favors for TP and organic matter removal but has little effect on TN removal.     

桂牧1号杂交象草研究进展

系统综述了桂牧1号杂交象草（Pennisetum purpureumcv.Guimu-1）生物学特性、丰产栽培技术、营养品质、饲喂效果等方面的研究状况,并针对生产实际中存在的问题,提出了桂牧1号杂交象草今后生产和研究的主要方向.     

基于离散粒子群算法全局QoS最优的Web服务选择

Web服务选择是Web服务组合中重要问题,也是一个NP难问题,使用离散粒子群算法对该问题进行建模求解并针对粒子群算法后期容易陷入局部最优进行改进,借鉴遗传算法中杂交变异的思想对算法迭代后期的一部分粒子进行杂交变异,实验仿真证明,由于杂交变异的引入,能够求得Web服务组合全局QoS更优的解。