水和甲醇存在下MAMS的消失反应动力学研究

通过实验研究了甲基丙烯酰胺硫酸盐（ＭＡＭＳ）与甲醇、水进行反应的动力学，并对该反应的机理进行了探讨。     

农村公共支出、基本建设投入与城乡收入差距

根据我国1978-2006年有关数据,建立向量自回归模型,对我国农村公共支出、基本建设投入与城乡收入差距的长期均衡关系进行了检验,在协整关系存在的前提下,进一步检验了三者的格兰杰因果关系,并利用脉冲响应函数对三者的动态关系进行了分析.实证结果显示,我国农村公共支出和基本建设投入有助于减少城乡收入差距,而且农业基本建设投入的作用较大.     

Self-clocking principle for congestion control in the Internet

The self-clocking principle (SCP) of Transmission Control Protocol (TCP) had been analyzed for a network implementing a per-flow buffering scheme. The ideal SCP is yet unknown for the Internet which implements a first-in–first-out buffering scheme. This paper derives an ideal SCP for the Internet by formulating the traffic transmission control as a typical control problem and then solving it by a control-theoretic approach. The ideal SCP reveals the defect of the SCP being deployed in the Internet that it is insufficient to avoid congestion by adjusting the packet effective window based on records of the outstanding packets of a single source; instead outstanding packets from other sources also have to be counted. The ideal SCP also reveals the difficulties of developing and implementing an effective self-clocking scheme for congestion control in the Internet.     

Accurate mirror-based camera pose estimation with explicit geometric meanings

An accurate closed form solution is proposed to estimate camera pose by several mirrored reference object images acquired via a planar mirror under different unknown poses. Compared with state-of-the-art methods, our method is more accurate when there are more than three images and has explicit geometric meanings. This method also properly handles cases in which some of the mirror poses are parallel. The central idea is to minimize an error metric based on all reflections of rotation, which enables the camera rotation to be estimated directly by SVD of sum of mirrored camera rotations. After that, the camera translation is computed by solving a large system of linear equations to minimize object space collinearity error. Both synthesized data and real data experiments show the advantages of our approach.     

一种基于OPC技术的风电主控系统数据记录软件的开发与实现

OPC把对象链接和嵌入技术应用于工业过程控制领域,为工业控制领域提供了一种标准的数据访问机制.本文研究了OPCDA服务器和客户程序,并将OPC技术应用于风电领域常用的巴赫曼PLC控制器,利用VISUALBASIC开发了“主控系统数据记录软件”,并详细描述了该软件的使用方法,实践证明该软件在风场调试和工厂测试中得到了较好的效果.     

三唑类化合物分子结构与防治小麦锈病活性关系的研究

本文用多元线性回归分析、逐步线性回归分析、主成分回归分析和偏最小二乘分析方法研究了三唑类化合物结构与防治小麦锈病活性的关系，并建立了构效关系式。对该系列化合物结构的变化对其生物性的影响作了一定的探讨。提出了设计高活性化合物的可能结构要求，并将研究结果用于实际化合物的设计中，取得了初步结果。     

泥金漆画与松田权六

中国是个文明古国 ,国人都知道在天然生漆的髹物上敷以金银粉末概称为泥金漆画。这一宝贵的技艺 ,于唐代流传到邻邦日本。日本名之为“莳绘”。泥金漆画 ,是在髹好的器物上先用漆绘好图样 ,待漆末干燥时撒上金 (或银 )粉 ,然后又在上面髹以薄漆 ,漆膜实干后用木炭磨平 ,使之泽光如镜。日本的《竹取物语》记载 ,泥金漆画不仅用之装饰家具漆器 ,而且在屋舍的墙壁上也髹以漆 ,绘以泥金画。这一技法 ,一直流传到近代 ,始终未衰颓过。要说日本的科学较先进 ,取而代之的事是极容易的。但是 ,这个国家很重视传统泥金漆画的保护与流传。不像我们中国…     

工艺参数对TiO2碳热还原合成Ti（C,N）粉末的影响

本文探讨了ＴｉＯ２碳热还原法合成Ｔｉ（Ｃ，Ｎ）粉末过程中合成温度，保温时间，Ｎ２气流量，Ｃ／Ｔｉ比值等工艺参数的变化对粉末性状的影响，实验表明，Ｎ比Ｃ更易于Ｔｉ结合，改变工艺对数可调整Ｔｉ（Ｃ１－ｘＮｘ）的ｘ值。在１４００～１７００℃间可获得ｘ值的０．６～０．８５的Ｔｉ（Ｃ１－ｘＮｘ）粉末。