驱动升级公告

ＥＣＳ精英 Ｋ７Ｓ６Ａ Ｖ１．０Ｘ主板最新ＢＩＯＳ ０１／１５／２００２版新增支持 Ａｔｈｌｏｎ ＸＰ ２０００＋处理器，增加了 ＵＳＢ唤醒功能，修正了在安装Ｗｉｎ９８时，ＵＳＢ键盘不能使用热键的问题［１８２Ｋ］ＥＣＳ精英 Ｐ６ＶＸＡＴ Ｖ１．０Ｘ主板最新 ＢＩＯＳ１．０ｂ版修正了与 Ｔｕｌａｔｉｎ１．２Ｇ ＣＰＵ的兼容性问题 ［２０２Ｋ］下载：ｗｗｗ．ｅｃｓ．ｃｏｍ．ｔｗＡｓｕｓ华硕Ｐ４５３３３主板（无板载网路及声音芯片）最新ＢＩＯＳ １００３Ｃ版［１７９Ｋ］华硕Ａ７Ｖ２６６－Ｅ／ＡＡ主板（无板载网络及声音…     

精英主板为什么不能进行内存异步等

各位编辑们,你们好,我是贵刊的忠实读者,有几个 问题想请教。 １．请问我的精英６９３Ａ（Ｐ６ＢＡＰ－ＭＥ）主板为什么不能进 行内存异步。ＢＩＯＳ中ＣＨＩＰＳＥＴ ＦＥＡＴＵＲＥＳ ＳＥＴＵＰ中的ＤＲＡＭ ＣＬＯＣＫ只有ＨＯＳＴ ＣＬＫ和ＨＣＬＫ－３３两个选项？没有ＨＣＬＫ＋３３？ ２．我的 Ｃ２－５６６（１．５Ｖ）在加 ０．２Ｖ下（１．７Ｖ）能较稳定运 行于８５０,请问这样是否安全？ ３．为什么我的１．５Ｖ ＣＰＵ在Ｓｉｓｏｆｔ ｓａｎｄｒａ ２００１中被 显示为额定电压１．６Ｖ,实际电压１．５６Ｖ？ 我的机器…     

有机物性估算系统OPES微机版本的研制（Ⅱ）软件的开发与特性

本文主要介绍有机物性估算系统ＯＰＥＳ（ＯｒｇａｎｉｃｐｈｙｓｉｃａｌＰｒｏｐｅｒｔｙＥｓｔｉｍａｔｉｏｎＳｙｓｔｅｍ）微机版本的软件特性。ＯＰＥＳ的总体结构采用将输入、输出与物性估算程序完全分离的策略：实现了系统的有效分解；物性估算程序的进一步分解则有效地解决了在ＤＯＳ环境下开发大型应用程序所面临的内存使用问题；标准化模块的设计思想既提高了软件的开发效率，又方便了今后软件的维护。本文从基础物性数据库检索方法的选择、用户界面的灵活性与智能性、系统的透明性、系统的健壮性等方面介绍了ＯＰＥＳ的使用功能。＊Ｃｏｍｐｏｎｅｎｔ：１＊２４Ｏ５Ｃ３Ｈ３Ｎ１Ｏ７－１３－１（依次是：丙烯腈的ＩＤ号、分子式、ＣＡ登录号）ＣＨ２＝ＣＨＣ＊Ｎ（丙烯腈的ＯＣＳＣＥ线性码）ａｃｒｙｌｏｎｉｔｒｉｌｅ（丙烯腈的英文名）Ｔ２（温度点数为２，温度分别是２９３。１５Ｋ，４５０．００Ｋ）２９３．１５Ｋ４５０．００ＫＰＯ（没有输入压力，压力点数为０）ＰＨ２（相态为液态）ＰＯ３（极性类别是强极性）ｂａｓｉｃｄａｔａｏｆｃｏｍｐｏｎｅｎｔＮｏ．１（从基础数据库中查到的数据）ＳＴＲＣＨ２＝ＣＨＣ＊ＮＲＭ５３．０６００（ｇ／ｍｏｌ）Ｓ（分子量，质量码Ｓ     

BENSON法预测标准生成焓的改进与程序实现

本工作改进、扩充了Ｂｅｎｓｏｎ－Ｂｕｓｓ的基团加和法计算有机化合物标准生成焓的方案,完成了化学结构特征的计算机识别,扩充了Ｂｅｎｓｏｎ的碎片库,改良了旁式校正方法,建立了原子属性库、碎片库、环校正库、顺式校正库。将该方法实现成微机上运行的Ｗｉｎｄｏｗｓ应用软件。对７０４个化合物的预测值与实验值进行相关性分析,相关性系数为０．９７５。改进后的Ｂｅｎｓｏｎ法比其它基团加和法有明显的优越性。     

UNIFAC基团贡献模型在胜利原油>350℃常压重油汽-液平衡预测中的应用

利用正构烷烃模型分子法，采用分子量一个参数确定石油窄馏分的基团组成，在实测数据基础上，对ＵＮＩＦＡＣ基团贡献型饱和蒸汽压模型即Ｊｅｎｓｅｎ模型参数进行修正，利用文献［１］数据对饱和蒸汽压模型参数修正后，Ｋｉｋｉｃ和Ｌａｒｓｅｎ模型预测闪蒸温度的平均相对偏差分别为０．７９％和０．７９％；汽化率的平均相对偏差分别为７．６９％和７．７７％，可满足工程计算要求。     

Brief Introduction to SolidWorks

ＢｙＤｒ．ＸｉｕｚｉＹｅ，ＳｏｌｉｄＷｏｒｋｓＣｏｒｐｏｒａｔｉｏｎ，Ｃｏｎｃｏｒｄ，ＭＡ０１７４２，ＵＳＡＥｍａｉｌ：ｘｉｕｚｉ＠ｓｏｌｉｄｗｏｒｋｓ．ｃｏｍ１ＲｅｃｅｉｖｅｄＦｅｂ．１０，１９９８１００３－４９５１Ｃ１９９８－ＣｈｉｎａＥｎｇｉｎ...     

注册表修改十法

给程序配乐 １．在 ＨＫＥＹ_ ＣＵＲＲＥＮＴ_ ＵＳＥＲ＼ＡｐｐＥｖｅｎｔｓ＼Ｓｃｈｅｍｅｓ＼Ａｐｐｓ下分别建立以下主键： ｗｉｎｗｐｓ３２（注意：这个主键必须是可以执行的程序名称,不要加扩展名）。 ２．在右边的默认命令行输入一个标识,比如就叫“ ＷＰＳ２０００”。 ３．在ｗｉｎｗｐｓ３２下建立两个主键“ＯＰＥＮ”、“ＣＬＯＳＥ” ４．到“控制面板”→“声音”中对ＷＰＳ２０００设置相关的音乐。二 在鼠标右键中加入“记事簿” １．在ＨＫＥＹ_ ＬＯＣＡＬ_ＭＡＣＨＩＮＥ＼Ｓｏｆｔｗａｒｅ＼ＣＬＡＳＳＥＳ＼* 下新…     

2000全球排名前100名的软件公司

１　Ｏｒａｃｌｅ Ｃｏｒｐ．２　ＳＡＰ Ａｍｅｒｉｃａ３ Ｊ．Ｄ． Ｅｄｗａｒｄｓ４ Ｂａａｎ Ｃｏｍｐａｎｙ, ＴｈｅＳ　Ｉｎｖｅｎｓｙｓ　Ｓｏｆｔｗａｒｅ　Ｓｙｓｔｅｍｓ６ ＡＢＢ Ａｕｔｏｍａｔｉｏｎ７ ｉ２　Ｔｅｃｈｎｏｌｏｇｉｅｓ８ ＧＥＡＣ 　Ｅｎｔｅｒｐｒｉｓｅ Ｓｏｌｕｔｉｏｎｓ９ Ｉｎｔｅｎｔｉａ１０ ＳＳＡ Ｇｌｏｂａｌ Ｔｅｃｈｎｏｌｏｇｉｅｓ１１ ＩＢＳ（Ｉｎｔｅｒｎａｔｉｏｎａｌ　Ｂｕｓｉｎｅｓｓ Ｓｙｓｔｅｍｓ）１２　ＰｅｏｐｌｅＳｏｆｔ, Ｉｎｃ．１３　Ｌａｗｓｏｎ Ｓｏｆｔｗａｒｅ１…     

自己家庭的PC小影院

ＣＰＵ：奔腾Ⅱ４００ Ｓｌｏｔ　１／５１２Ｋ散主板：升技 ＢＥ６ Ｉｎｔｅｌ ４４０ＢＸ／ＡＴＸ／Ｓｌｏ－１／支持 １００ＭＨｚ外频／支持 Ｕｌｔｒａ ＤＭＡ／６６硬盘： ＩＢＭ 　Ｄｅｓｋｓｔａｒ ＤＪＮＡ３７１３６０ １３． ６Ｇ／ ＵＤＭＡ／６６／２Ｍ／７２００ｒｐｍ／ＩＤＥ／全国联保三年内存：日立／６４Ｍ ６ｎｓ／１６８ＰＩＮ ＳＤＲＡＭ／ＰＣ１００／原装显示卡： ＡＴＩ ＸＰＥＲＴ１２８ Ｒａｇｅ １２８ＧＬ／１６ＭＢ ＳＤＲＡＭ／ＡＧＰ ２Ｘ声卡： ＣＲＥＡＴＩＶＥ ｓｂ ＰＣＩ １２８（ｄｉｇｉｔａｌ）１２８位复音／１２８位硬波表／ＰＣＩ光驱：先锋 ＤＶＤ－Ａ０３Ｓ ６Ｘ ＤＶＤ／３２Ｘ ＣＤ－ＲＯＭ／无托盘／吸盘式结构显示器： ＬＧ ７７５ＦＴ １７″ ０． ２４ｍｍ点距／最大分辨率 １２８０ ｘ １０２４／１１０ＭＨｚＭＯＤＥＭ： ＴＰ－ ＬＩＮＫ ５６Ｋ／Ｒｏｃｋｗｅｌｌ／Ｖ．９０＋ Ｋ５６／内置软驱：三菱１．４４″     

注册表小绝招

按以下路径：ＨＫＥＹ－ＣＬＡＳＳＥＳ－ＲＯＯＴ＼．ｐｉｆ（ＤＯＳ的快捷万式）或选＼ＨＫＥＹ－ＣＬＡＳＳＥＳ－ＲＯＯＴ ＼．Ｉｎｋ（Ｗｉｎｄｏｗｓ的快捷方式）,鼠标左键点击右边窗口中的“ＩｓＳｈｏｒｔｃｕｔ”,按“Ｄｅｌｅｔｅ”键删除即可。限制修改桌面设置按以下路径：ＨＫＥＹ－ＵＳＥＲＳ＼Ｓｏｆｔｗｒｅ＼Ｍｉｃｒｏｓｏｆｔ＼Ｗｉｎｄｏｗｓ＼ＣｕｒｒｅｎｔＶｅｒｓｉｏｎ＼Ｐｏｌｉｃｉｅｓ＼Ｅｘｐｌｏｒｅ－ｒ,双击“Ｎｏ　Ｓａｖｅ　Ｓｅｔｔｉｎｇ”,然后将其键值“０”改为“１”。修改“我的电脑”图标按…     

计算机辅助有机分子结构信息处理（1）：Benson,Pedley法计算机化及物性估算

本工作从专家系统的基本概念出发,建立了 Benson、Pedley 两种基团加合法的规则集,编制了一套计算机可以接受的知识表达及结构信息处理的程序系统。借助于这一系统,用户仅需输入有机分子的结构线性代码,就可得到具有高精度的标准生成热及理想气体热容(300—1000K)的预测结果以及所需有机化合物的许多结构信息。用 Benson、Pedley 和已建立的 Joback 基团加合法对数百个有机化合物的标准生成热及理想气体热容C_p~o 做了计算,与文献值进行了比较和讨论。并可由 Benson 基团的热容参数自动关联出化合物在300—1000K 范围内 C_p~o 的温度多项式常数。     

Description of the thermodynamic properties of pure gold in the solid and liquid states from 0 K

Thermodynamic data for pure gold were critically assessed using an extended Einstein model from 0 K for the crystalline FCC_A1 phase and a two state model for the liquid phase. During the assessment, careful critical evaluation of the experimental data on thermodynamic properties of solid (FCC_A1) and liquid phases was carried out. Due to the fact that there is a large scatter in the experimental data for crystalline gold in the temperature range between 200 K and the melting point, we carried out additional ab initio calculations of the thermodynamic properties. In order to fulfil the need for a precise evaluation of S^o_298.15 we needed to use an additional technique using multiple Einstein functions, which allows the experimental heat capacity and enthalpy data for the solid phase to be approximated accurately from 0 K up to the melting point. It was found during the data analysis that there is a large scatter in experimental data for the enthalpy of fusion and the liquid phase.     

Deriving correctness properties of compiled code

When developing safety-critical software, it is the correctness of the object code that is paramount. However, it is desirable to perform formal verification on the source program. To ensure that correctness results proved about the source program do apply to the object code, the compiler used can be formally verified. However, care must be taken to ensure that the compiler correctness theorem proved is suitable. We have combined a derived programming logic with a verified compiler for a generic subset of the Vista structured assembly language. We show how correctness properties of object code can be formally derived from corresponding correctness properties of the source program which have been proved using the programming logic. Thus we can be sure the results do apply to the object code. The work described has been performed using the HOL system and so is machine-checked.     

Thermodynamic analysis of the In-P, Ga-As, In-As And Al-Sb Systems

Thermodynamic and phase diagram data are used to optimize the thermodynamic model parameter values of the liquid phases in four III-V binary systems: In-P, Ga-As, In-As and Al-Sb. An associated solution model is used to describe the thermodynamic properties of the liquid phases and the III-V compound semiconductors are taken to be stoichiometric (or line) compounds. For each of the binary systems, a set of thermodynamic parameters for the liquid and compound semiconductors are obtained. Using these values, the calculated phase diagrams are in agreement with the experimentally determined ones. Moreover, the model-calculated thermodynamic values also in agreement with the experimentally determined values.     

A molecular dynamics implementation of the 3D Mercedes-Benz water model

The three-dimensional Mercedes-Benz model was recently introduced to account for the structural and thermodynamic properties of water. It treats water molecules as point-like particles with four dangling bonds in tetrahedral coordination, representing H-bonds of water. Its conceptual simplicity renders the model attractive in studies where complex behaviors emerge from H-bond interactions in water, e.g., the hydrophobic effect. A molecular dynamics (MD) implementation of the model is non-trivial and we outline here the mathematical framework of its force-field. Useful routines written in modern Fortran are also provided. This open source code is free and can easily be modified to account for different physical context. The provided code allows both serial and MPI-parallelized execution.Program summaryProgram title: CASHEW (Coarse Approach Simulator for Hydrogen-bonding Effects in Water)Catalogue identifier: AEKM_v1_0Program summary URL: http://cpc.cs.qub.ac.uk/summaries/AEKM_v1_0.htmlProgram obtainable from: CPC Program Library, Queen?s University, Belfast, N. IrelandLicensing provisions: Standard CPC licence, http://cpc.cs.qub.ac.uk/licence/licence.htmlNo. of lines in distributed program, including test data, etc.: 20 501No. of bytes in distributed program, including test data, etc.: 551 044Distribution format: tar.gzProgramming language: Fortran 90Computer: Program has been tested on desktop workstations and a Cray XT4/XT5 supercomputer.Operating system: Linux, Unix, OS XHas the code been vectorized or parallelized?: The code has been parallelized using MPI.RAM: Depends on size of system, about 5 MB for 1500 molecules.Classification: 7.7External routines: A random number generator, Mersenne Twister (http://www.math.sci.hiroshima-u.ac.jp/m-mat/MT/VERSIONS/FORTRAN/mt95.f90), is used. A copy of the code is included in the distribution.Nature of problem: Molecular dynamics simulation of a new geometric water model.Solution method: New force-field for water molecules, velocity–Verlet integration, representation of molecules as rigid particles with rotations described using quaternion algebra.Restrictions: Memory and cpu time limit the size of simulations.Additional comments: Software web site: https://gitorious.org/cashew/.Running time: Depends on the size of system. The sample tests provided only take a few seconds.     

Higher level programming and data abstractions—a case study using enhanced C

In this work the topological sort algorithm is programmed in EC, taking advantage of EC's set-oriented features and its macro-like data abstractions. The main issue was whether efficient run-time code could be achieved while maintaining program structure and readability. The main conclusion is that in this particular example such code was achieved. Program structure and readability were maintained despite changes in both the higher level program and the data abstractions. Other conclusions are the following: (1) The program design process requires dependent data abstractions; (2) it is iterative rather than strictly top down; choosing data abstractions for run-time efficiency requires insight into the properties of the algorithm. It is believed that global analysis can be used to enhance such insight.     

ms2: A molecular simulation tool for thermodynamic properties

This work presents the molecular simulation program ms2 that is designed for the calculation of thermodynamic properties of bulk fluids in equilibrium consisting of small electro-neutral molecules. ms2 features the two main molecular simulation techniques, molecular dynamics (MD) and Monte-Carlo. It supports the calculation of vapor–liquid equilibria of pure fluids and multi-component mixtures described by rigid molecular models on the basis of the grand equilibrium method. Furthermore, it is capable of sampling various classical ensembles and yields numerous thermodynamic properties. To evaluate the chemical potential, Widom?s test molecule method and gradual insertion are implemented. Transport properties are determined by equilibrium MD simulations following the Green–Kubo formalism. ms2 is designed to meet the requirements of academia and industry, particularly achieving short response times and straightforward handling. It is written in Fortran90 and optimized for a fast execution on a broad range of computer architectures, spanning from single processor PCs over PC-clusters and vector computers to high-end parallel machines. The standard Message Passing Interface (MPI) is used for parallelization and ms2 is therefore easily portable to different computing platforms. Feature tools facilitate the interaction with the code and the interpretation of input and output files. The accuracy and reliability of ms2 has been shown for a large variety of fluids in preceding work.

Program summary

Program title:ms2Catalogue identifier: AEJF_v1_0Program summary URL:http://cpc.cs.qub.ac.uk/summaries/AEJF_v1_0.htmlProgram obtainable from: CPC Program Library, Queen?s University, Belfast, N. IrelandLicensing provisions: Special Licence supplied by the authorsNo. of lines in distributed program, including test data, etc.: 82 794No. of bytes in distributed program, including test data, etc.: 793 705Distribution format: tar.gzProgramming language: Fortran90Computer: The simulation tool ms2 is usable on a wide variety of platforms, from single processor machines over PC-clusters and vector computers to vector-parallel architectures. (Tested with Fortran compilers: gfortran, Intel, PathScale, Portland Group and Sun Studio.)Operating system: Unix/Linux, WindowsHas the code been vectorized or parallelized?: Yes. Message Passing Interface (MPI) protocol Scalability. Excellent scalability up to 16 processors for molecular dynamics and >512 processors for Monte-Carlo simulations.RAM:ms2 runs on single processors with 512 MB RAM. The memory demand rises with increasing number of processors used per node and increasing number of molecules.Classification: 7.7, 7.9, 12External routines: Message Passing Interface (MPI)Nature of problem: Calculation of application oriented thermodynamic properties for rigid electro-neutral molecules: vapor–liquid equilibria, thermal and caloric data as well as transport properties of pure fluids and multi-component mixtures.Solution method: Molecular dynamics, Monte-Carlo, various classical ensembles, grand equilibrium method, Green–Kubo formalism.Restrictions: No. The system size is user-defined. Typical problems addressed by ms2 can be solved by simulating systems containing typically 2000 molecules or less.Unusual features: Feature tools are available for creating input files, analyzing simulation results and visualizing molecular trajectories.Additional comments: Sample makefiles for multiple operation platforms are provided. Documentation is provided with the installation package and is available at http://www.ms-2.de.Running time: The running time of ms2 depends on the problem set, the system size and the number of processes used in the simulation. Running four processes on a “Nehalem” processor, simulations calculating VLE data take between two and twelve hours, calculating transport properties between six and 24 hours.     

Thermodynamic and ab initio investigation of the Cu–Dy system

A combined ab initio and thermodynamic study of the Cu–Dy system has been performed and a self-consistent thermodynamic database has been obtained. Density functional theory has been applied by using the VASP code in order to obtain the enthalpy of formation at 0 K of intermetallic compounds. Experimental information on the Cu–Dy phase diagram and thermodynamic properties of its alloys have been collected. Using these data, optimized parameters have been obtained by applying the CALPHAD approach. The present results reproduce the experimental data available reasonably well, although some features of the Cu–Dy system need to be further clarified.