一种基于Spring的轻量级面向服务组件框架

面向服务组件将面向服务的概念引入组件模型中,支持松耦合的面向服务应用软件的开发.本文提出一种基于Spring框架的轻量级面向服务组件框架SSCF(Spring-based Service Component Framework),利用Spring的依赖注入和远程服务访问技术,简化面向服务组件的编程模型、增加编程自由度、提高组件运行效率.给出了SSCF框架中服务组件模型的逻辑结构模型、描述方法和连接通信机制以及框架实现的关键技术.该框架简化了面向服务组件的开发,与SCA(Service Component Architecture)实现框架Apache Tuscany相比,性能上具有一定的优势.     

The Study of Full Light Speech Signal Collection System

The demodulation character of 3×3 optic fiber couplers is analyzed, and the application in the coherent communication system and speech signal collection is pointed out in the paper. By the experiment, the feasibility of speech signal collection system by the way of the all light is verified.     

涡轮叶片的解析成型与优化设计方法

本文发展了一种对于涡轮叶片用任意圆锥曲线作为基本曲线实现几何成型的解析方法,大量试算表明,该方法可以适应相当大一部分涡轮叶片几何造型的需要．本文还用正反问题相结合的方法对实用中的涡轮叶片进行改型优化,取得了较好效果,Ｎ－Ｓ流场分析表明,改型后的新叶栅比原叶栅性能有明显改善．     

奇妙的空间光孤子

空间光孤子是当今非线性光学前沿的热点之一,在介绍稳态光孤子的形成机理之后,文章重点评述了空间光孤子奇特的相互作用行为以及它们在光控制光诸方面的应用前景。此外,文章还介绍了非相干光空间光孤子方面的最新动态。     

Indecomposable Representations of the Square—Root Lie Algebras of Vector Type and Their Boson Realizations

The explicit expressions for indecomposable representations of nine square-root Lie algebras of vector type, R_νλ (ν, λ=0, ±1), are obtained on the space of universal enveloping algebra of two-state Heisenberg-Weyl algebra, the invariant subspaces and the quotient spaces. From Fock representations corresponding to these indecomposable representations, the inhomogeneous boson realizations of R_νλ are given. The expectation values of R_νλ in the angular momentum coherent states are calculated as well as the corresponding classical limits.     

20 Na的β+延发α粒子测量

利用兰州放射性次级束流线提供的^20Na束流,通过^20Na→^β^ ^20Ne*→^16O α过程,测量了^20Na的衰变半衰期T1／2及衰变α粒子能谱。结果表明,除了Ed≥2.688MeV的9条较高激发能级的衰变α粒子外,实验中还观察到衰变能量Ed为0.890和1.054MeV,1.991MeV,2.424和2.457MeV的^20Ne低激发能级的3条α谱线。     

The Study of Full Light Speech Signal Collection System

1　Ｉｎｔｒｏｄｕｃｔｉｏｎ　　Ｏｐｔｉｃｆｉｂｅｒｃｏｕｐｌｅｒｓｈａｖｅｂｅｅｎｗｉｄｅｌｙｕｓｅｄｉｎｔｈｅｏｐｔｉｃａｌｃｏｍｍｕｎｉｃａｔｉｏｎａｎｄｏｐｔｉｃａｌｓｅｎｓｏｒｓ.Ｂｅｓｉｄｅｓｔｈｅｉｒｐｏｗｅｒｄｉｓｔｒｉｂｕｔｉｏｎｆｕｎｃｔｉｏｎｓ,ｔｈｅｃｏｕｐｌｅｒｓ′ｃｏｈｅｒｅｎｔｄｅｍｏｄｕｌａｔｉｏｎｃｈａｒａｃｔｅｒｗｈｉｃｈｈａｓｂｅｅｎｕｓｅｄｉｎｔｈｅｆｉｅｌｄｏｆｏｐｔｉｃｉｎｔｅｒｆｅｒｏｍｅｔｅｒ[1 ,2 ] ｉｓａｌｓｏｉｍｐｏｒｔａｎｔ,ｂｕｔｔｈａｔｗａｓ…     

Dynamical properties of two-band superlattices with strong interband coupling in real space under the action of ac and dc－ac fields

Within a two-band tight-binding model driven by ac and dc－ac electric fields, using numerical methods, we investigate the dynamics of electrons and the quasi-energy spectrum of the system with strong interband coupling in real space. We find that when the bandwidth is suppressed to a value much smaller than the field frequency, the dynamical localization can exist in the system. The corresponding regions are found for the occurrence of dynamical localization in the parameter space.     

关于水蒸气蒸馏的建议

在水蒸气蒸馏基本操作训练中,一般采用澳苯、苯胺、苯甲醛或1一辛醇等药品。这几种药品或者有毒或者有难闻的气味,不仅损害师生的身体,而且 还会污染环境。     

叔丁基取代的环戊二烯基钛、锆、铪二氯化物的合成及催化乙烯聚合

(tBuC5H4 ) 2 MCl2 (M =Ti(1a) ,Zr(1b) ,Hf(1c) )和 (tBu2 C5H3 ) 2 MCl2 (M =Ti(2a) ,Zr(2b) ,Hf(2c) )可以通过单叔丁基环戊二烯基锂或双叔丁基环戊二烯基锂与MCl4 (M =Ti,Zr,Hf)在四氢呋喃中反应制备得到 ,用IR、1H NMR和EI MS对这些化合物进行了表征 .采用X光单晶结构分析测定了 (tBuC5H4 ) 2 HfCl2 的晶体结构 .六个化合物均具有一定的催化乙烯聚合活性