统一网络新技术—Jini

Jini作为一析技术，致于实现“统一网络”，以彻底打破传统网络连接 的障碍。介绍了Jini的概念、特点、重点阐述了Jini各主要术语及胜任，分析了Jini系统的结构，各部件的功能和关系。     

基于Jini技术的智能家居网络应用探讨

通过对目前流行的网络即插即用技术的比较,突出了Jini技术应用于智能家居网络中的优越性,并对Jini技术在智能家居网络中的应用模式做了较为详尽的说明.同时,对目前Jini查找服务处理诸如负载平衡、非功能性请求匹配、紧急服务请求等服务分配功能作了适当改进,优化了智能家居网络的服务管理分配.     

基于JERI的RMI编程模型研究

介绍了所研究的远程方法调用(RMI)结构,分析了在Jini2.0中用来实现远程调用的JERI(JiniExtensibleRemoteInvocation)的体系结构,最后给出了用JERI实现Jini分布式编程的服务端代码框架.     

一个嵌入式移动计算平台:WebitAgent系统模型

提出了一个嵌入式的MobileAgent分布式计算平台,详细地介绍了WebitAgent的体系结构和各子系统的功能及实现·特别地,还介绍了一种扩展Jini的基本体系结构的技术ServerPush技术,使得移动代码能够主动迁移·WebitAgent系统建立在扩展后的Jini体系结构基础之上,因此,由WebitAgent系统连接的设备网络具有Jini体系结构下网络资源组织的灵活性、动态性和易于管理的特性·并且,由于嵌入了支持MobileAgent计算模式的系统,原来的非标设备不但具有智能性还具有主动性     

Jini分布式计算体系结构探讨

Jini是建立在Java和RMI基础之上的分布式计算技术,支持网络设备即插即用,能将计算设备和软件组件动态组成一个分布式计算系统,将网络转变成一个易组织、易管理的柔性环境,使用户能够在网络上共享服务和网络资源,较好解决了传统的分布式计算技术难以处理的一些问题。Jini内容众多,体系结构复杂,通过对Jini计算环境和体系结构的深入和系统分析,理清了Jini的主要组成要素之间的关系,为Jini在信息家电等领域的广泛和深入应用打下较好的基础。     

基于Jini技术的DCS系统体系结构改进

主要探讨了现有DCS设备联网的体系结构和Jini体系结构,分析两者的实现功能和提高系统动态可扩展性的方法.利用Jini技术的多虚拟机环境和嵌入式操作系统,对DCS的多子网结构进行了改进,并针对DCS中的异构设备,提出了4种提高设备的动态可扩展性的方法,支持各种DCS控制设备的动态网络化.     

Jini倒置租用机制的研究

通过分析Jini的租用机制,提出倒置的租用机制,并通过模拟实验进行研究与验证,从而将它作为Jini技术应用中的一种可选租用方案.同时期望相似的过程能应用到其他依赖于租用解决部分失败的分布式系统中.     

中间件技术在智能家庭网络中的应用

中间件技术屏蔽了家庭网络分布式环境的复杂性和异构性,简化了家庭网络应用程序的开发,并提高了其健壮性、可扩展性和可用性,适合家庭网络分布、异构及开放的体系结构。给出了家庭网络中间件的概念,介绍了Upnp、Jini、Havi和Osgi等几种常见的家庭网络中间件,并对它们进行了分析比较。最后着重对Jini技术进行了分析,并介绍了Jini技术在家庭网络中的应用实例。     

基于JERI的RMI编程模型研究

介绍了所研究的远程方法调用(RMI)结构，分析了在Jini2．0中用来实现远程调用的JERI(Jini Extensible Remote Invoeation)的体系结构，最后给出了用JERI实现Jini分布式编程的服务端代码框架．     

基于Jini技术的移动Agent的设计与实现

Jini技术是Sun公司提出的一项技术，具有强移植性、容易管理、且可随时使用网络各种服务的特点，将Jini技术应用到移动Agent中，能够解决其中一些问题．针对移动Agent中尚存的一些主要问题？例如环境灵活性。代码迁移，通信等，提出了一种基于Jini技术的移动Agent解决方案，并分析了其中的关键技术及实现．     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

海南岛地体及其毗邻陆缘晚中生代—新生代古地磁研究和构造演化

本文叙述了对海南岛及其毗邻大陆边缘白垩纪到第四纪地层岩石进行古地磁研究的全部工作过程。通过分析岩石中剩余磁矢量的磁偏角及磁倾角的变化,提出海南岛白垩纪以来经历的构造演化模式如下:早期伴随顺时针旋转而向南迁移,后期伴随逆时针转动并向北运移。联系该地区及邻区的地质、地球物理资料,对海南岛上述的构造地体运动提出以下认识:北部湾内早期有一拉张作用,主要是该作用使湾内地壳显著伸长减薄,形成北部湾盆地。从而导致了海南岛的早期构造运动,而海南岛后期的构造运动则主要是受南海海底扩张的影响。海南地体运动规律的阐明对于了解北部湾油气盆地的形成演化有重要的理论和实际意义。     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

《Chinese Science Bulletin》SUBJECT INDEX TO VOLUME 59(2014)

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Achieving Unusual States of Matter Under High Pressure

The elongation method,originally proposed by Imamura was further developed for many years in our group.As a method towards O(N)with high efficiency and high accuracy for any dimensional systems.This treatment designed for one-dimensional(ID)polymers is now available for three-dimensional(3D)systems,but geometry optimization is now possible only for 1D-systems.As an approach toward post-Hartree-Fock,it was also extended to     

Exciton Seebeck in Molecular Systems

Various applications relevant to the exciton dynamics,such as the organic solar cell,the large-area organic light-emitting diodes and the thermoelectricity,are operating under temperature gradient.The potential abnormal behavior of the exicton dynamics driven by the temperature difference may affect the efficiency and performance of the corresponding devices.In the above situations,the exciton dynamics under temperature difference is mixed with