基于遗传珊瑚礁优化算法的负载均衡问题

基于珊瑚礁优化算法, 通过在种群的每次进化过程中引入遗传算法中的交叉和变异算子, 提出一种遗传珊瑚礁优化算法, 并将改进的遗传珊瑚礁优化算法运用到负载均衡中, 有效解决了算法过早收敛的问题, 提升了算法的优化性能. 对比经典遗传算法、 珊瑚礁优化算法等群智能算法, 在CloudSim上仿真实验结果表明, 遗传珊瑚礁优化算法优化负载均衡策略取得了满意的结果, 提升了资源能耗利用率, 均衡了控制策略.     

实时远程心电监护系统研究

利用当前最先进的移动定位技术、移动数据库技术、计算机网络技术、移动通信技术等开发出移动远程心电监护系统 ,扩展了远程监护的研究与应用 ,为改善医疗服务质量 ,提高医疗技术水平 ,方便广大心血管疾病患者 ,提高急救效率提供了一个很好的模式     

纸张定量,水份STD总线微机综合控制系统

本文提出了在纸张生产的自动控制系统中,应用微机对纸张定量,水份进行控制,探讨了控制系统的模型及算式,介绍了整个系统的结构,对造纸生产有一定实用价值。     

金果榄中脂肪酸成分的GC-MS分析

采用气相色谱-质谱联用法（GC-MS）测定金果榄中脂肪酸的组成,共鉴定了15个化学成分,确定了金果榄所含有的5种主要脂肪酸,其中亚油酸质量分数为38.94%、顺式-13-十八酸甲酯质量分数为24.97%、棕榈酸质量分数为18.77%、硬脂酸质量分数为5.94%、十七烷酸质量分数为3.12%.     

Structure modeling and spatial epitope analysis for HA protein of the novel H1N1 influenza virus

In recent months, a novel influenza virus H1N1 broke out around the world. With bioinformatics technology, the 3D structure of HA protein was obtained, and the epitope residues were predicted with the method developed in our group for this novel flu virus. 58 amino acids were identified as potential epitope residues, the majority of which clustered at the surface of the globular head of HA protein. Although it is located at the similar position, the epitope of HA protein for the novel H1N1 flu virus has obvious differences in the electrostatic potential compared to that of HA proteins from previous flu viruses.     

六品系猪SLA-2多肽结合区分子结构差异研究

为研究我国饲养的不同品系猪sLA_2抗原多肽结合区分子结构差异,设计引物,克隆了六品系猪SLA-2基因cDNA全长序列,用分子生物学软件分析其基因特征,比较各品系猪SLA-2分子结构差异,并通过同源模建显示变异住点的空间位置．结果表明,六品系猪SLA-2cDNA全长为1119bp,其中3-1097为编码区,共编码364个氨基酸,分别在第125,188,227,283位置出现半胱氨酸残基,含有2对链内二硫键．六品系猪SLA-2胞外区氨基酸差异主要集中在α1区的62-70及77-82和口2区的143-156．同源模建显示,这些变异位点均位于SLA-2多肽结合区的口螺旋结构上,推测可能与动物的抗病毒免疫特性有关．可为猪品系的改良及抗病毒免疫研究提供参考．     

装配式混凝土剪力墙水平拼缝U型闭合筋连接抗震性能试验研究

为综合评价水平拼缝U型闭合筋连接的装配式混凝土剪力墙抗震性能,对其足尺试件进行了低周反复荷载试验并与现浇试件对比.试验结果表明:对于破坏形态,U型闭合筋连接试件与现浇试件基本相同;由于水平拼缝的存在,U型闭合筋连接试件的受力全过程的表现形式与现浇试件不相同;两者滞回曲线均较饱满,骨架曲线走势基本一致,耗能能力接近;两者极限位移角分别为1/46和1/49,位移延性系数均为4,满足延性要求;U型闭合筋试件较现浇试件初期刚度、开裂荷载有所降低,但峰值荷载承载能力提高.装配式混凝土剪力墙结构水平拼缝采用合理构造可以达到与现浇结构相当的承载能力、延性以及抗震耗能能力.     

煤与瓦斯突出前瓦斯涌出动态混沌特性

为了分析煤与瓦斯突出前瓦斯涌出量时间序列的混沌动力学特征,对某矿突出前的瓦斯涌出量实测数据的时间序列进行了相空间重构,采用G-P算法计算了突出前瓦斯涌出量时间序列的饱和嵌入维数和关联维数,采用Wolf方法计算了最大Lyapunov指数。结果表明:突出前瓦斯涌出量时间序列是一混沌序列,具有混沌特性;对于研究的瓦斯涌出量时间序列,当嵌入空间维数m取6～7时,Lyapunov特征指数趋于稳定值0.074,即为最大Lyapunov指数LE1;可以应用混沌理论分析突出前瓦斯涌出量时间序列的非线性特征。为煤与瓦斯突出预测研究提供了一种新思路。     

生漆中C15三烯漆酚的分离制备

石油醚萃取生漆后,用硅胶、MCI和ODS等多种分离填料进行三烯漆酚的分离制备,纯化的单体以H-NMR、3C-NMR和高分辨质谱鉴定结构.结果表明,石油醚可萃取得到大量漆酚,硅胶柱分离以石油醚-乙酸乙酯（V(石油醚)∶V(乙酸乙酯)=30∶1~10∶1）为洗脱溶剂进行粗分,MCI和ODS分离以甲醇-水（甲醇体积分数90%）为流动相进行纯化,最后得到较高纯度的单体漆酚（质量分数达96%）,经鉴定为一种三烯漆酚,3-(8′Z,11′E,13′Z-pentadecatrienyl) catechol.     

Change of proton motive force across thylakoid membrane in soybean leaf during state transitions

Change of proton gradient across thylakoid membrane in soybean leaves was studied with millisecond delayed light emission(ms-DLE) during the coures of state transitions which were indicated by the cholrophyll fluores-cence at room temperature and 77K.When dark-adapted leaves were induced to state Ⅰ with far-red light,Fm/F0,F685/F735 and the intensity of fast phase of ms-DLE were af-fected slightly.However,during the induction to state Ⅱ with red light,both Fm/F0 and F685/F735 decreased immedi-ately and the former were quicker than the latter.In this interval,the intesity of fast phase of ms-DLE increased to a maximum and then decreased to a lower valus during the transition to stateⅡ.Nigericin,an uncoupler which elimi-nates the proton gradient across thylakoid membrane,inhib-ited the increase in the intensity of fast phase of ms-DLE during the transition to state Ⅱ.Another uncoupler,valino-mycin,which eliminates the membrane potential,did not affect the changes of the intensity of fast phase.These results suggest that the prompt increase in the intensity of fast phase of ms-DLE at the beginning of transitions to state Ⅱ is cor-related mainly with the proton gradient released from water oxidation in photosystemⅡ.