基于网格计算的电子商务模式浅析

随着Internet的高速发展，电子商务日益成为企业有效的营销工具。而随之而来的一些应用问题带来了网格技术应用于电子商务领域的契机，基于网格技术的解决方案将为电子商务未来发展提供有力帮助。     

基于网格服务的电子交易体系与交易流程分析

针对目前电子商务交易中存在的资源瓶颈问题,结合网格技术的应用背景,研究基于网格服务的电子商务交易体系与交易流程问题.从数据资源服务、网格服务中间件和电子商务网格服务等方面提出基于网格服务的电子商务交易体系,从交易识别和确定数据源、资源发现的资源调度算法、信用评价、支付网格服务等方面分析电子商务交易的网格服务流程;从交易过程、信用流程和评价方法等方面分析基于网格服务的电子商务交易的信用评价,提高交易的效率和可信度.     

浅谈影响我国电子商务发展的几个主要问题

近年来，我国的电子商务迅速发展，电子交易额年年翻番，显示了电子商务对我国经济发展巨大的促进作用。但是我国电子商务的发展水平与发达国家相比差距还很大，本文就影响我国电子商务发展的几个主要问题进行了一些初步探讨。     

浅谈电子商务中的支付安全技术

随着电子商务的迅速发展和广泛应用,电子商务技术已经影响到人类生活和工作的各个方面,支付安全问题是电子商务发展中遇到的一个重要的问题。本文针对电子商务中存在的支付安全问题,分析了电子商务中电子支付的过程以及遇到的电子支付安全问题。     

略论电子物流与现代运输业的发展

当前运输企业面临着从传统物流企业到电子物流企业的转变，结合运输企业的特点，论速了运输企业发展电子物流和电子商务的模式。     

基于网格计算技术的电子商务平台的研究

当前,企业在应用电子商务过程中,存在着构建IT环境花费巨大和计算资源浪费的矛盾。网格技术将企业的各种应用系统加以集成、整合,实现网络虚拟环境下的高性能资源共享和协同工作。本文结合网格技术的应用背景,提出了网格计算环境下电子商务的模式以及网格技术模式下电子商务平台构架。     

网格技术在电子商务中的应用

介绍了网格的概念,分析了网格技术在电子商务中的应用,展望了未来电子商务技术发展的趋势。     

浅议电子商务中的电子支付技术

任何一项交易,都会包含一个最基本的的环节,就是资金的转移。在线电子支付是电子商务的关键环节,也是电子商务得以顺利发展的基础条件。没有适时的电子支付手段相配合,电子商务就成了真正意义上的“虚拟商务”,只能是电子商情、电子合同,而无发网上成交。伴随着电子商务的提高,网上支付愈来愈受欢迎。     

浅谈电子商务合同的若干法律问题

互联网的普及催生了网络经济的蓬勃发展,而拉动网络经济发展的“火车头”是电子商务,成为21世纪的主流贸易形式。电子商务在促进经济巨大发展的同时,也使传统市场的法律受到了极大的冲击,电子商务中的法律问题阻碍了电子交易的进行,也制约了电子交易的发展。本文从电子商务的概念着手,主要谈论电子合同的成立问题。     

企业电子商务存在的问题及对策

简单介绍了电子商务的内涵和特性，阐述了目前我国企业电子商务应用中存在的主要问题。提出了发展我国电子商务的主要对策。     

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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