大学生人格倾向与焦虑的相关研究

目的了解大学生的焦虑症状,探讨人格倾向与焦虑症状的关系,为干预研究提供依据。方法采用艾森克个性问卷(EPQ)和焦虑自评量表(SAS)对湖北省长江大学300名大学生采用无记名方式,进行问卷调查。结果大学生的焦虑症状显著高于常模。大学生的焦虑与神经质有相关(.268**P<0.01),与精神质有相关(.367**P<0.01),与掩饰有相关(-.170**P<0.01);大学生的内外向与神经质有相关(.369**P<0.01),与精神质有相关(.133*P<0.01);大学生的神经质与精神质有相关(.286**P<0.01),与掩饰有相关(-.276**P<0.01).结论大学生焦虑症状较为普遍。帮助大学生养成健康的人格,降低大学生的焦虑感,是当前高校心理健康教育工作刻不容缓的任务。     

基于主从模式的并行决策树算法研究

针对对等模式下并行决策树分类算法的通信开销太大,提出了一种基于主从模式的FPM_DT并行决策树挖掘算法,此算法综合使用了横向与纵向的数据划分模型,并采用根据分支数据分布情况进行结点分组的策略.实验结果表明,它与对等模式下并行SPRINT分类算法相比,降低了通信开销,具有更好的可扩展性与加速比性能.     

XML信息的加密及实现

简述了XML在跨平台分布式中的应用（数据交换），分析了XML加密的必要性和特点，详细阐述了XML加密信息的原理和类型，最后探讨了XML加密技术在Visual Studi．NET2005下的实现。     

嵌入式实时操作系统μC/OS-Ⅱ在s3c44box上的移植

介绍了嵌入式实时操作系统μC/OS-Ⅱ的内核结构,实现了μC/OS-Ⅱ在s3c44box上的移植,对移植后的系统进行了测试.测试结果表明:移植后的实时系统是稳定可靠的.     

Neural correlates of short-term perceptual learning in orientation discrimination indexed by event-related potentials

The current work investigated the neural correlates of visual perceptual learning in grating orientation discrimination by recording event-related potentials (ERPs) from human adults. Subjects were trained with a discrimination task of grating orientation in three consecutive training sessions within 2 h. While reaction times (RTs) were shortened gradually across training sessions, the N1 was decreased and the P2 was increased over the parietal and occipital areas. A broadly distributed P3 was increased along with more practices. In addition, the time course of learning reflected in the P2 and P3 amplitudes was in line with the changes of reaction times and exhibited a stable level during later training. The impli- cations of these results to the neural mechanisms subserving perceptual learning were discussed.     

Biomineralization of phototrophic microbes in silica-enriched hot springs in South China

Microbial mats in two hot springs in South China were sampled for the research of mineralization of microbes and its mechanism by the methods of geology and modern biology. The results show that hot spring microbes have the key capability for enrichment of Si, Al, Fe, Ca and other elements, and the microbes are also crucial for the formation of SiO2, CaCO3, clay and so on. The extracellular polymeric substances (EPS) play important roles in the process of mineralization of hot spring microbes, which mainly takes place in the layer of EPS outside cell wall or sheath of cyanobacteria. The sheath outside cell wall, which keeps the normal metabolism of cyanobacteria during the process of mineralization on its surface, is also considerable for the biomineralization of cyanobacteria. According to structure and mineralization characteristics of two microbial mats, the process of mineralization can be divided into three stages, namely, early surface mineralization, middle degradation mineralization, and late des- quamation of mineral. The above conclusions are significant for comprehension of the process of mineralization, the process of deposition and the preservation of microfossil in modern and ancient extreme environments.     

浅析从IPv4到IPv6的过渡技术

介绍了IPv4和IPv6,阐述了IPv4向IPv6的过渡的必要性,提出了IPv4向IPv6的过渡的方法以及各种方法的实际应用情况,提出了一些有关IPv4向IPv6过渡的建议。     

基于红外图像处理的埋地石油管道自动探测技术

埋地石油管道的辅助巡线以及对偷油支管的快速定位与排查是目前油田亟待解决的问题．为此，根据输油管道加温后辐射红外能量的特点，提出了应用红外热成像技术探测埋地输油管道的方法．介绍了基于非制冷红外焦平面阵列的，具有便携、实时成像特点的红外管道探测仪的硬件设计；在对原始红外图像进行去噪和增强的基础上，采用基于最大类内距离比准则的递归带通分割法对输油管道的红外图像进行自动阈值分割，并结合Freeman直线链码方法对细化后的图像进行骨架跟踪处理，提取管道主干，标记管道走向并定位偷油支管分支．实验证明，本算法自适应性好，执行效率高，管道定位准确，实现了埋地输油管道的自动检测．     

柳宗元诗歌对佛禅理念的阐释——以《渔翁》、《禅堂》两诗为中心考察

佛教禅宗的“任运自在”、“随缘自适”、“即心即佛”、“一念顿悟”的理念是文人士大夫度过人生困厄的“灵丹妙药”。流寓永州、柳州时期，柳宗元的诗歌蕴含着浓郁的禅意。柳的禅诗是其身陷厄境却能顿悟释然的心境体现。     

河蚬软体部分营养成分分析及评价

通过对河蚬软体部分营养成分分析,综合评定其营养价值.结果表明:河蚬软体部干样中,粗蛋白、粗脂肪、灰分含量分别为63.33%、10.91%、6.29%;必需氨基酸占氨基酸总量的39.10%,各必需氨基酸中平均氨基酸分为88.9,第一限制氨基酸为Leu(1973年FAO/WHO标准);并富含钙、钠、钾、铁等无机元素.认为河蚬是一种营养价值较高的贝类.