集成电路光刻模拟的数据后处理研究

在集成电路光刻过程中,利用光刻模拟软件将光刻模拟结果与设计模板进行比较可以预先发现模板设计中的缺陷.由于光刻模拟软件与模板设计软件数据格式的不同影响了这一步工作的顺利完成.本文通过对两种软件数据格式的研究,利用Perl语言实现了两种软件之间数据格式的转换,具有一定的实用价值.     

超导石墨烯-正常石墨烯结中的近邻效应

基于Bardeen-Cooper-Schrieffer(BCS)理论,在紧束缚近似下,利用Bogoliubov-de Gennes(BdG)方程,通过自洽计算,研究了具有S波配对的超导石墨烯-石墨烯结中的近邻效应。针对在超导部分和正常导体部分的费米能级匹配和不匹配的两种情况,讨论了化学势对体系的局域态密度,以及配对振幅的影响。     

视觉诗的象似性初探

象似性普遍存在于文学语言之中,对于诗歌语言而言,象似性被强调为制约诗歌篇章结构的原则之一。象似性既是语言的自然属性,也是重要的认知原则,除了作为诗歌的修辞手段以外,它在语言使用中还具有连句成篇的衔接作用,是语篇的隐形衔接手段之一。从语篇层面可以揭示象似性在视觉诗语篇衔接与连贯中的重要作用。     

钻井泥浆泵泵冲流量测量系统的研制

钻井泥浆泵泵冲流量测量系统是石油钻(修)井行业中一种重要的泥浆泵冲和入口测量的测量仪表.文章介绍了泵冲流量测量系统的原理,阐述了该仪表系统的设计原理及关键技术.该系统能为钻(修)井泥浆注入量提供准确显示.便于司钻和钻(修)井监督们第一时间了解泥浆泵的工作情况和掌握井筒内泥浆的压力状态.实验证明,该系统测量精度.可靠性均很理想,值得推广应用.     

X波段扇形微带元的计算机辅助设计

本文介绍了X波段扇形微带元的理论计算与计算机辅助设计的方法,计算了ER=9.6、3.8、2.77、的介质基片上的扇形微带元的有关特性曲线。计算结果与实测基本相符,可供设计者参考使用。最后介绍了作为宽带偏置电路或调谐电路的应用。     

Urban structure and the risk of influenza A （H1N1） outbreaks in municipal districts

Changsha was one of the most affected areas during the 2009 A （H 1N 1） influenza pandemic in China. Here, we analyze the spatial-temporal dynamics of the 2009 pan- demic across Changsha municipal districts, evaluate the relationship between case incidence and the local urban spatial structure and predict high-risk areas of influenza A （H1NI）. We obtained epidemiological data on all cases of influenza A （H1NI） reported across municipal districts in Changsha dur- ing period May 2009-December 2010 and data on population density and basic geographic characteristics for 239 primary schools, 97 middle schools, 347 universities, 96 mails and markets, 674 business districts and 121 hospitals. Spatial- temporal K functions, proximity models and logistic regres- sion were used to analyze the spatial distribution pattern of influenza A （H1N1） incidence and the association between influenza A （HINI） cases and spatial risk factors and predict the infection risks. We found that the 2009 influenza A （H 1N 1 ） was driven by a transmission wave from the center of the study area to surrounding areas and reported cases increased significantly after September 2009. We also found that the distribution of influenza A （H 1N1） cases was associ- ated with population density and the presence of nearest public places, especially universities （OR = 10.166）. The final pre- dictive risk map based on the multivariate logistic analysis showed high-risk areas concentrated in the center areas of the study area associated with high population density. Our find- ings support the identification of spatial risk factors and high- risk areas to guide the prioritization of preventive and miti- gation efforts against future influenza pandemics.     

Numerical classification of proximity data with assignment measures

An approach to numerical classification is described, which treats the assignment of objects to types as a continuous variable, called an assignment measure. Describing a classification by an assignment measure allows one not only to determine the types of objects, but also to see relationships among the objects of the same type and among the types themselves.A classification procedure, the Assignment-Prototype algorithm, is described and evaluated. It is a numerical technique for obtaining assignment measures directly from one-mode, two-way proximity matrices.     

组织间邻近性对技术标准合作绩效的影响研究——基于闪联的案例分析

通过分析地理邻近性、技术(知识)邻近性、制度邻近性和认知邻近性等对技术标准合作绩效的作用方式,并以闪联的形成和成长过程论证不同邻近性对技术标准合作绩效的影响。理论与案例研究表明组织间邻近性与技术标准合作网络密不可分,地理邻近性、技术(知识)邻近性、制度邻近性和认知邻近性对技术标准合作绩效有着不同的作用方式与影响程度。     

近炸引信的系统试验技术

近炸引信的系统试验是近炸引信总体设计和检验产品必不可少的重要手段。本文论述了试验中有关的测量、速度选择和数据处理方面主要技术问题的解决方法及某些运用观点。     

引信X波段遥测系统的研制

本文论证了无线电引信的无线电遥测系统的设计方案,并着重介绍了此系统的几个重要部件的研究设计(微波固态源、PIN调制器、天线等)。系统的实验结果表明:此系统及其部件设计是成功的。