激光水下通信中图像信号处理方法

针对激光水下图像通信的特点，设计出一种专用图像编、解码方案以及消除方块效应的后处理方案；给出了实验结果及系统综合评价指标．该方案算法简单、运算时间短，具有较高的压缩比和较好的主客观图像质量．所研制的实验系统简单实用，能在极低比特率（320～640bit／8）和极短通信时间的条件下传送静止图像。     

多聚焦图像融合中最佳小波分解层数的选取

小波变换作为一种十分有效的信号处理方法已被应用于多聚焦图像融合系统中。但其中需要解决的一个问题是最佳小波分解层数的选取。通过大量的实验 ,总结出基于小波分解子图像面积比和低频带均方根误差两个标准来确定最佳小波分解层数的方法。实验结果表明 ,无论是依据均方根误差、灰度平均误差、熵、空间频率等客观评价标准 ,还是视觉的主观评价 ,所提出的选取方法都是有效可行的     

Endogenous Stackelberg Leadership with Uncertain Information

1 ＩＮＴＲＯＤＵＣＴＩＯＮＩｎｒｅｃｅｎｔｙｅａｒｓ,ｍａｎｙｅｆｆｏｒｔｓｈａｖｅｂｅｅｎｍａｄｅｔｏｅｘｐｌｏｒｅｎｏｎ ｃｏｏｐｅｒａｔｉｖｅｇａｍｅｔｈｅｏｒｙｆｒｏｍａｄｅｃｉｓｉｏｎ -ｔｈｅｏｒｅｔｉｃｖｉｅｗｐｏｉｎｔ.Ｏｐｐｏｓｉｔｅｔｏｔｈｅｔｒａｄｉｔｉｏｎａｌｖｉｅｗｏｆｍｉｘｅｄｓｔｒａｔｅｇｉｅｓａｓｃｏｎｓｃｉｏｕｓｒａｎｄｏｍｉｚａｔｉｏｎｓ,ｐｌａｙｅｒｓｄｏｎｏｔｐｅｒ ｆｏｒｍｒａｎｄｏｍｉｚａｔｉｏｎ .Ｏｎｅｐｌａｙｅｒｃｈｏｏｓｅｓａｄｅｆｉｎｉｔｅａｃｔｉｏ…     

Ant System Based Optimization Algorithm and Its Applications in Identical Parallel Machine Scheduling

1 .ＩＮＴＲＯＤＵＣＴＩＯＮＩｄｅｎｔｉｃａｌｐａｒａｌｌｅｌｍａｃｈｉｎｅｓｃｈｅｄｕｌｉｎｇｐｒｏｂｌｅｍｆｏｒｍｉｎｉｍｉｚｉｎｇｔｈｅｍａｋｅｓｐａｎｈａｓｂｅｅｎｐｒｏｖｅｄｔｏｂｅａｎＮＰｐｒｏｂ ｌｅｍ[1,2 ] .Ｉｔｗａｓｔｒａｄｉｔｉｏｎａｌｌｙｓｏｌｖｅｄｂｙｏｐｅｒａｔｉｏｎａｌｍｅｔｈｏｄｓｓｕｃｈａｓｄｙｎａｍｉｃｐｒｏｇｒａｍｍｉｎｇ ,ｂｒａｎｃｈａｎｄｂｏｕｎｄｍｅｔｈｏｄ ,ａｎｄｉｎｔｅｇｅｒｐｒｏｇｒａｍｍｉｎｇ[3～ 7] .Ｔｈｅｓｅｍｅｔｈｏｄｓｃａｎ ｇｉｖｅａｎｏｐ…     

国际标准不确定度评价体系的建立

以模糊数学为基础，提出了模糊误差总合定律，解决了误差子集Ａ和Ｂ之间的概率合成问题，并在此基础上提出了不确定度评定方法。     

Genomic and genic sequence variation in synthetic hexaploid wheat （AABBDD） as compared to their parental species

In order to understand the genomic changes during the evolution of hexaploid wheat, two sets of synthetic hexaploid wheat from hybridization between maternal tetraploid wheat （AABB） and paternal diploid goat grass （DD） were used for DNA-AFLP and single strand conformation polymorphism （SSCP） analysis to determine the genomic and genic variation in the synthetic hexaploid wheat. Results indicated that more DNA sequences from paternal diploid species were eliminated in the synthetic hexaploid wheat than from maternal tetraploid wheat, suggesting that genome from parental species of lower ploidity tends to be eliminated preferentially. However, sequence variation detected by SSCP procedure was much lower than those detected by DNA-AFLP, which indicated that much less variation in the genic regions occurred in the synthetic hexaploid wheat, and sequence variations detected by DNA-AFLP could be derived mostly from non-coding regions and repetitive sequences. Our results also indicated that sequence variation in 4 genes can be detected in hybrid F1, which suggested that this type of sequence variation could be resulted from distant hybridization. It was interesting to note that 3 out of the 4 genes were mapped and clustered on the long arm of chromosome 2D, which indicated that variation in genic sequences in synthetic hexaploid wheat might not be a randomized process.     

基于分级规划的工艺决策任务分解与求解策略

根据分级规划原理，构造了基于分级规划的工艺决策任务分解策略、工艺决策任务求解策略以及工艺决策共性与个性问题分治策略．将工艺决策这个复杂的问题分解成一定数量、规模较小和易于求解的子任务，并将这些任务按不同的性质进行分类和分层，以便对不同性质的任务用最适合的方法进行求解．     

4-(2-吡啶偶氮)-邻苯二酚与Co(Ⅱ)、Co(Ⅲ)显色反应的分光光度研究

合成了新显色剂4-(2-吡啶偶氮)-邻苯二酚(PAPC)，并研究该试剂与Co(Ⅱ)、Co(Ⅲ)的显色反应。在pH=10.5缓冲溶液中，该试剂分别与Co(Ⅱ)、Co(Ⅲ)反应都能生成稳定的红色配合物，其最大吸收波长分别为518 nm和514 nm ,表观摩尔吸光系数分别为5.04×10     

用电子能量消失谱法研究P.tinctorius—P.massoniana菌根

在实验室条件下用12株外生菌根菌，对马尾松（Pinus massoniana)培养苗进行高效菌种的接种试验，筛选并证明分布于台湾的采色豆马勃（Pisolithus tinctorius)，具有生长快，对生态环境要求不严格，接种成功率大的特点。用能量消失谱技术对细胞内N、P营养元素进行定位测定，表明了这一菌株具有对N、P元素的吸收和贮存能力。