基于Web Services的电子采购支持系统框架研究

快速采购需求一直是生产企业关注的重点,基于Web Services的构建电子采购支持系统(WSEPSS)能够对快速采购进行实时、动态的支持,从而可以大幅度提高B2B供应链中的电子采购效率;该文给出了WSEPSS的系统框架结构及功能Agent组件设计,并进行了应用实验及实时性和动态性分析.     

电子商务环境下的采购管理

进入知识经济时代,伴随着计算机、网络等现代信息技术飞速发展,电子商务成为21世纪全球最有影响的工商业管理趋势之一.文章首先从电子商务的形成与发展着手,论述了电子商务在企业供应链中的作用,探讨了电子采购的模式及战略管理者在制定具体实施方案时应该考虑的问题.     

企业物资电子采购

企业采购部门业务的优劣和效率直接关系到企业生产成本的高低，从而影响到企业的发展。随着Internet的迅速发展，出现了协议采购、竞价采购、电子招标等电子采购方式，大力推行和发展企业电子化采购，是深化企业物资采购改革的一项重要内容，也是企业信息化建设的必然选择。     

绿色供应链条件下的企业采购管理

在推广和发展绿色供应链管理过程中,采购起着关键性作用,它是供应链企业直接的节点,可提高绿色供应链的效率和应用水平。因此,在绿色供应链管理中,采购问题已经成为企业决策者要考虑的重要问题。     

企业电子采购模式选择研究

该文介绍了电子采购的定义和优势,对三种电子采购模式的优劣势进行比较分析,结合企业自身的特点和采购物料的种类,提出了企业电子采购模式选择方案,对企业电子采购的实施有重要的借鉴作用。     

企业物资采购管理的探讨

阐明了物资采购管理在企业经营管理工作中的重要作用，提出应通过建立健全规章制度、科学合理地选择物资采购方式、建立企业供应链管理体系等措施来搞好企业的物资采购管理。     

浅谈企业采购供应链管理

介绍了企业采购供应链管理的定义、目标和任务。针对目前国内企业供应链管理的现状,分析了企业对实施采购供应链管理的一些疑虑,并提出了相应的对策。     

电子采购优势与模式研究

随着电子商务的快速发展,电子采购被越来越多的企业所接受并采用。简单的说,电子采购是基于因特网的企业采购解决方案,企业可以通过采购电子采购策略来提升在网络时代的竞争优势。本文研究了电子的采购的优势和三种采购模式。     

网络环境下企业的物资采购

企业采购部门业务的优劣和效率直接关系到企业生产成本的高低,从而影响到企业的发展。随着网络的迅速发展,出现了协议采购、竞价采购、电子招标等电子采购方式,大力推行和发展企业电子化采购,是深化企业物资采购改革的一项重要内容,也是企业信息化建设的必然选择。     

供应链采购管理的层次分析及其实施

供应链管理的思想与方法已逐渐为我国企业界所接受,采购管理是供应链管理的重要组成部分,分析探讨供应链环境下的采购管理对企业供应链管理的运用与实施有着广泛的现实意义.     

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.     

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.     

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     

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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