一种基于 SNMP 实现 MIB 库多变量访问的方法

提出了一种基于ＳＮＭＰ的客户机端软件中实现ＭＩＢ库多变量访问的方法,据此方法在ＨＰ９０００／７１５工作站ＨＰＵＸ上开发的相应网络管理系统软件中的基模块ＮＭＳＳ实现了对ＭＩＢ数据库中多变量的访问,即可根据网络管理用户的要求,动态地收集各异种网络设备ＭＩＢ库中的多变量统计数据,以掌握网络当前的各层状态,从而进一步实施网络管理的各项功能．     

一种基于SNMP实现MIB库多变量访问的方法

提出了一种基于ＳＮＭＰ的客户机端软件中实现ＭＩＢ库多变量访问的方法，据此方法在ＨＰ３０００／７１５工作站ＨＰ－ＵＸ上开发的相应网络管理系统软件中的基模块－ＮＭＳＳ实现了对ＭＩＢ数据库中多变量的访问，即可根据网络管理用户的要求，动态地收集各异种网络设备ＭＩＢ库中的多变量统计数据，以掌握网络当前的各层状态，从而进一步实施网络管理的各项功能。     

基于SNMP网络拓扑图的自动构造实现

网络拓扑图的构造是大多数网络管理系统的基本功能之一。本文提出了一种可实现于ＴＣＰ／ＩＰ环境中，利用已成为工业标准的ＳＮＭＰ协议进行了网络拓扑图自动构造的一种方法。分析了ＭＩＢ库中的路由表，接口表等有关变量，从而得到网络拓扑图的有关信息。     

TCP／IP网络管理相关协议—抽象文法表示法一及管理信息结构

采用抽象文法表示法一定义ＴＣＰ／ＩＰ协议中的网际管理信息库ＭＩＢ，并作为基准，介绍了ＡＳＮ．１的内容及其应用前景。本文还介绍了管理信息结构ＳＭＩ。     

CMIP和SNMP的比较和综合

现代网络管理要求能有效地管理分布的多厂商网络,ＯＳＩ的ＣＭＩＰ与ＩＡＢ的ＳＮＭＰ为实现这一目标都有作进一步的努力,本文首先对ＣＭＩＰ和ＳＮＭＰ进行比较和分析,然后讨论几种综合这２种协议来管理多厂商网络的方法。     

ACTIVECONTROLOFNOISETRANSMISSIONTHROUGHAPANELINTOACAVITYBYUSINGPANELACCELERATIONFEEDBACKCONTROLMETHO

ＡＣＴＩＶＥＣＯＮＴＲＯＬＯＦＮＯＩＳＥＴＲＡＮＳＭＩＳＳＩＯＮＴＨＲＯＵＧＨＡＰＡＮＥＬＩＮＴＯＡＣＡＶＩＴＹＢＹＵＳＩＮＧＰＡＮＥＬＡＣＣＥＬＥＲＡＴＩＯＮＦＥＥＤＢＡＣＫＣＯＮＴＲＯＬＭＥＴＨＯＤＱｉｕＸｉａｏｊｕｎＳｈａＪｉａｚｈｅｎｇＹａ...     

基于SNMP网络管理的MIB库访问实现

由于管理信息库（ＭＩＢ）是网络管理子系统各功能间的公共接口，故ＭＩＢ处理网络管理的核心地位，文中详细论述了ＴＣＰ／ＩＰ互连网络上基于ＳＮＭＰ网络管理的ＭＩＢ库访问实现。     

基于Web的本地电话网网管系统

探讨了利用Ｗｅｂ 技术实现本地电话网网管系统的方法。为了实现基于Ｗｅｂ 的网管,就必须实现现有的基于ＣＭＩＰ／ＳＮＭＰ（ 公共管理信息协议／ 简单网络管理协议） 的网管协议向基于Ｗｅｂ 的网管协议的迁移。建立了基于Ｗｅｂ 的网管与ＣＭＩＰ／ＳＮＭＰ代理的网关接口和ＭＩＢ（ 管理信息库） 网关接口来解决这个问题,并结合实际,给出了一个基于Ｗｅｂ 方式的网管信息系统的实例,同时探讨了该方法的发展趋势     

MONTE-CARLO CALCULATIONS OF NUCLEON EMISSION AND ENERGY DEPOSITION OF SPALLATION NEUTRON SOURCES INDUCED BY INTERMEDIATE ENERGY PROTONS

ＭＯＮＴＥ┐ＣＡＲＬＯＣＡＬＣＵＬＡＴＩＯＮＳＯＦＮＵＣＬＥＯＮＥＭＩＳＳＩＯＮＡＮＤＥＮＥＲＧＹＤＥＰＯＳＩＴＩＯＮＯＦＳＰＡＬＬＡＴＩＯＮＮＥＵＴＲＯＮＳＯＵＲＣＥＳＩＮＤＵＣＥＤＢＹＩＮＴＥＲＭＥＤＩＡＴＥＥＮＥＲＧＹＰＲＯＴＯＮＳＳｈｅｎＱｉ...     

基于CORBA的分布式SDH网络管理结构

提出了一种基于ＣＯＲＢＡ的分布式ＳＤＨ网络管理结构,其中,引擎的概念在分布式异构环境下继承和发展了ＳＭＮ的分层管理思想和组织模型,由它所构成的引擎组在ＣＯＲＢＡ服务和扩展服务支持下,能很好地完成ＳＭＮ的各层管理功能,新的网络管理结构还了网关模块,以实现与采用ＣＭＰ协议或ＳＮＭＰ协议的ＳＭＮ系统互连。     

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.     

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.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the     

An affordable accurate evaluation of the binding conformations predicted by molecular docking studies in bio-system

Franck-Condon factors bridge the gap between theoretical modeling and experimental observations for molecular electronic spectroscopy and electron transfer.Under the displaced harmonic oscillator approximation,multidimensional Franck-Condon factors are decomposed into a product of many one-dimensional(1D)Franck-Condon(FC)factors,and each 1D-FC factor is associated with one Huang-Rhys factor that determines the leading contribution of     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with     

Journal of Donghua University ( English Edition) Contents of Volume 31

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