ATM在网络中的应用

对ATM技术及ATM网络作了简要介绍，分析了ATM技术在网络中的应用前景。通过使用ATM技术，总结了ATM的优点和应用，以及展望ATM技术在未来发展的趋势和前景。     

基于ATM网在民航航空情报系统中的应用探析

介绍了民航航空情报系统和ATM技术的现状,重点分析了ATM网的特点,并研究了ATM网在航空情报系统中的应用,对ATM网在我国航空情报系统智能化、网络化建设中的应用做了探索并指明了方向,为保障民航航空情报系统发展和飞行安全发挥了卓有成效的作用。     

ATM网络上实现IP互联和传统LAN仿真

提出一种采用分级结构模型构成的ATM网络，介绍这种模型的主要设备配置)然后讨论了ATM 地址辨析方案以及建立ATM连接的方法与过程4这种模型充分利用ATM 网络的高性能，有效地实现 ATM网络上IP互联和传统局域网仿真，并易与现存的传统局域网互联4最后对实际应用作了简单说明。     

ATM Adapter Layer 2 协议体系分析

介绍了ATM AAL2的协议结构、分组格式及其应用,并对ATM AAL2 Trunking在窄带网络中的应用做了较详尽的分析,最后给出了基于AAL的网络融合方案.     

异步传输技术(ATM)综述

概述了异步传输模式(ATM)的产生、概念，并分析了ATM交换原理，在此基础上简单的介绍了ATM的应用。中心议题是异步传输的研究方向，因而又介绍了ATM的走向、ATM与IP的相互结合技术及MPLS、IPOA、ATM MPEG2等等ATM的最新研究进展。     

ATM局域网仿真技术的应用

在对ATM局域网仿真技术进行简要概述的基础上，通过局域网的一个应用实例，提出了ATM局域网仿真技术的原理、构造及运行过程和目的，最后对ATM局域网仿真存在的问题进行了简述。     

一种基于ATM网络获取高质量Internet通信传输的构想

增强ATM网络信令性能,以便为英特尔应用提供服务质量.考虑到那些依赖于传输控制协议的英特尔应用,建议将每个需求服务质量的TCP连接和一个ATM虚通道连接联合起来,以强调TCP定向连接的特性.探讨了一种基于ATM网络获取高质量Internet通信传输的方法.ATM网络中的信令程序被描述为简化信令.     

ATM网络上实现IP互联和传统LAN仿真

提出一种采用分级结构模型构成的ATM网络，介绍这种模型的主要设备配置，然后讨论了ATM地址辨析方案以及建立ATM连接的方法与过程。这种模型充分利用ATM网络的高性能，有效地实现ATM网络上IP互联和传统局域网仿真，并易与现存的传统局域网互联。最后对实际应用作了简单说明。     

ATM体系结构的研究与应用

简单地介绍了ATM的产生前提以及ATM作为一种协议,它的参考模型、涉及的层面以及各层间的关系;详细介绍了ATM物理层、适配层和ATM层的工作方式和功能,在ATM层中介绍了ATM的信元格式和各个字段的作用;分异步时分复用和异步交换2个方面简要论述了ATM的异步原理,通过实例明确了ATM的广阔应用。     

ATM Adapter Layer2协议体系分析

介绍了ATM ALL2的协议结构、分组格式及其应用，并对ATM AAL2 Trunking在窄带网络中的应用做了较详尽的分析，最后给出了基于AAL的网络融合方案。     

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.     

An on-line scaling method for improving scalability of a database cluster

The explosive growth of the Internet and database applications has driven database to be more scalable and available, and able to support on-line scaling without interrupting service. To support more client's queries without downtime and degrading the response time, more nodes have to be scaled up while the database is running. This paper presents the overview of scalable and available database that satisfies the above characteristics. And we propose a novel on-line scaling method. Our method improves the existing on-line scaling method for fast response time and higher throughputs. Our proposed method reduces unnecessary network use, i.e. , we decrease the number of data copy by reusing the backup data. Also, our on-line scaling operation can be processed parallel by selecting adequate nodes as new node. Our performance study shows that our method results in significant reduction in data copy time.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

大肠杆菌pheA与tyrB基因的克隆与串联表达

为探讨用基因工程的手段改良苯丙氨酸的发酵菌株，采用聚合酶链反应（ＰＣＲ）的方法，从大肠杆菌总ＤＮＡ中克隆得到了编码苯丙氨酸合成途中的两个关键酶基因－即分枝酸变位酶（ＣＭ）／预苯酸脱水酶（ＰＤ）基因ｐｈｅＡ与苯丙氨酸转氨酶（ＰＡＴ）基因ｔｙｒＢ，在大肠杆菌中进行了这两个基因的单个和串联表达。ｐｈｅＡ和ｔｙｒＢ基因分别都能在λ噬菌体的ＰＲ启动子之后得到较大量的表达，在ＳＤＳ－ＰＡＧＥ上出现清晰的条带，     

四川溲疏属的分类研究 （Ⅱ）：种的简介及新分类群

介绍了四川溲疏属植物20种,5变种及1栽培变型,每种均有文献考证、学名订正、特征集要及产地和生境,新分类群D.leiboeneie P.He et L.C.Hu, D.piloea var.longiloba P.He et L.C.Hu,D.jinyangensis P.He eL L.C.Hu及D.longifolia var.deneitomentosa P.He et L.C.Hu均有详细拉丁文描述并附模式标本照片,还记录了两个四川省新分布种:D.bodiaieri Rehd.,D.rehderiana C.K.Schn.,对伞花亚组Subsect Cymosae Rehd.中建立的新系(Ser.Multiradiatae P.He,Ser.Pauciradiatae P.He)作了拉丁文补充描述。     

在Java技术之Servlet中实现文件的上载功能

Java这门编程语言以及相关技术的使用得到快速的增长;现在大约有700多万台计算机正在运行Java应用程序,有近100万的Java开发人员,世界上所有的企业中,几乎有一半正在开发 Java应用程序。Java成功的理由是很自然的,Java是真正与平台无关的,它是适合于任何操作系统的一种通用的编程语言;Java是完全面向对象的,这在软件工程和组件技术方面有了很大的进步;Java的安全模型是成熟的,这与其他容易感染病毒的模型系统形成了鲜明的对比。     

中国阳蝇属六异名记述(双翅目:蝇科)

阳蝇属是蝇科最大的属之一,迄今全世界已知阳蝇属约666种,分布于世界各大地理区。近年来对阳蝇属种团和类群的研究,发现在我国阳蝇属中存在一些异名问题。在我国阳蝇属已知226种中,发现小兴安阳蝇(Helina xiaoxinganna Xue,2001)、茂县阳蝇(Helina maoxianica Feng,2008)、后曲阳蝇(Helina postiflexa Xue,Feng& Tong,2008)、团宝山阳蝇(Helina tuanbaoshanica Feng,2007)、兴凯阳蝇(Helina xingkaihuica Feng& Ye,2007)和错那阳蝇(Helinacuonaica Feng&Xu,2008)等6个种存在同物异名问题,并根据模式标本及原始文献,指出了同物异名的理由,明确给予了订正。     

采用有限差分方法求解固体弹性应力场(英文)

为了采用全有限差分方法进行涡轮气热弹耦合计算,研究了固体弹性应力场计算的物理模型,给出了任意曲线坐标系下的控制方程.同时研究了定常问题的有限差分求解方法和边界条件的给定,编制了定常问题的应力场求解程序;并通过对具有解析解的受集中载荷的悬臂梁和一端受径向集中力的曲梁进行数值计算来验证该固体弹性应力场的求解方法.结果表明,边界条件的二阶精度处理的格式所得结果与解析解数据吻合得较好,而一阶精度格式结果与解析解有较大的误差.     

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.     

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