上部同单调随机变量和的度量

应用分布函数的反函数法和上部同单调随机向量的性质, 计算不同Young函数下Pareto分布与指数分布随机变量和的Haezendonck-Goovaerts风险度量, 得到了保单组合风险的上部同单调临界点及理赔总量的停止损失保费和Haezendonck-Goovaerts度量的表达式, 并运用R软件对Haezendonck-Goovaerts度量进行了数值模拟.     

分布式数据采集监控系统的设计与实现

探讨了基于MCS-51单片机的分布式数据采集监控系统,设计了下位机既可单机工作又可多机与上位机联网的具有强大功能的控制系统,实现了远程采集、监视和控制等功能。     

上三角算子矩阵值域的闭性

设A∈B(H),B∈B(K),定义MC=(A C0B),其中C∈B(K,H)。基于算子分块的技巧,讨论了当R(A),R(B)都是闭的时候,对每一C∈B(K,H),R(MC)是闭的充要条件。进而研究了:(ⅰ)当R(A)不闭,R(B)闭时,以及当R(A)闭,R(B)不闭时,对任意C∈B(K,H),R(MC)不闭的充要条件;(ⅱ)当R(A),R(B)同时不闭时,对任意C∈B(K,H),R(MC)不闭的充要条件。     

一类斯泰勒三元系(STS)的上色数

反超图及其上色数的概念是由ＶｉｔａｌｙＩＶｏｌｏｓｈｉｎ（１９９５）提出来的,该文主要研究斯泰勒三元系及其着色理论,构造了一类ＳＴＳ,并给出了它们的上色数。     

长江上游生态修复与重点区域治理研究

在分析水土流失对洪水、河道影响与洪灾形成的基础上，通过比较分析与实地考察，阐述了四川省域水土保持在长江上游生态建设中的地位。指出了长江上生态修复的重点区域，并就治理对策作了分析探讨。     

基于UML软件开发过程的CASE平台研制

针对基于UML的面向对象软件开发支持环境CASE平台的研制,给出了平台的需求定位和实现目标,讨论了平台组织的总体方案和功能,并据此给出了平台体系结构的设计和实现方案,阐述了平台设计和实现中的模型建立、数据存储机制实现方案,较成功地用于基于UML软件开发过程的CASE平台。     

成熟度指标在恢复地层假整合面剥蚀幅度中的应用

古剥蚀幅度的恢复是反演盆地埋藏史和油气生成史的前提条件 .利用黄骅坳陷现有数十口探井钻到的古生界地层资料 ,采用频数分布统计的方法建立该区综合地层厚度剖面 ,在此基础上 ,试用镜质组反射率 R0 法 ,对该区上、下古生界地层之间假整合面的平均剥蚀幅度进行了尝试性研究 ,并以分子级成熟度参数 C2 9Ts/C3 0 H对所得结果加以验证 ,表明黄骅坳陷上、下古生界间假整合面的最小平均剥蚀幅度为 440 m,同时 ,也说明该方法简便可行 ,有值得参考借鉴之处     

长江上游枯水期及10月径流情势分析

采用非参数统计检验Mann-Kendal法分析了长江上游寸滩、宜昌站枯水期及10月的流量变化趋势,并用有序聚类分析法分析了两站枯水期及10月流量序列的跳跃点.结果表明:两站枯水期流量均呈上升趋势,10月流量均呈下降趋势;两站枯水期流量序列的跳跃点均为1989年,10月流量序列的跳跃点均为1991年.枯水期和10月流量序列的跳跃点基本吻合,初步判定,跳跃点的产生可能是由于长江上游流域水库运行引起的.     

含参数二阶差分方程多重解的存在性研究

利用Ricceri建立的三临界点定理,证明了一类含参数二阶差分方程至少存在三个解．随后,利用临界点理论,讨论了一类离散边值问题的多重解的存在性．     

Distribution of ghrelin-like immunoreactive cells in amphioxus, Branchiostoma belcheri – A study of immunohistochemistry

The distribution of ghrelin-like immunoreactive cells in amphioxus （Branchiostoma belcheri） was investigated by using immunohistochemical staining with rabbit antiserum against synthetical mammalian ghrelin. The results showed that ghrelin-like immunoreactive cells were distributed widely in the nervous system, Hatschek＇s pit, wheel organ, digestive tract and gonads （ovary and testis）. In nervous system, ghrelin-like immunoreactive neurons and their protrusions were distributed specifically on the dorsal side, ventral side and funnel part of brain vesicle, with a few dispersive immunoreactive nerve cells and their fibers in nerve tube. Ghrelin-like immunoreactivities were also detected in Hatschek＇s pit epithelial cells and wheel organ cells, with positive substance located along cell membrane. In digestive tract, ghrelin-like immunoreactive cells existed in hepatic diverticulum, anterior and posterior region of midgut, and could be classified into two types, closed- and opened-type endocrine cells. The number of positive cells was most in hepatic diverticulum, secondary in posterior region of midgut and least in anterior region of midgut. In gonads, ghrelin-like immunoreactive substance was detected in oogonia, oocytes and follicle cells in ovary at the small and large growth stages and in early spermatogenic cells and Sertoli cells in testis. The extensive distribution of ghrelin-like cells in amphioxus suggested that these kinds of cells are conservative in evolution and diversified in function. At the same time, we found for the first time that ghrelin-like immunoreactive cells existed in brain vesicle and Hatschek＇s pit, which provided new morphological evidence for the existence of an activation pathway between brain vesicle and Hatschek＇s pit for the regulation of growth hormone excretion.