工程投资决策中计算机辅助预测系统的设计

根据工程投资决策及工程信息管理的特点，应用数据库原理，结合定理预测方法和统计学等，实现与工程项目投资决策系统相配合的计算机预测系统。     

企业信息化投资过程分析及决策支持系统构建

在DSS基本架构的基础上,分析了企业信息化投资决策的一般过程.针对该投资决策过程是一个典型的半结构化问题,提出了企业信息化决策支持系统的总体逻辑结构并系统分析了其组成和功能,该决策支持系统的建设可为企业决策层在信息化决策内容选择方面提供有效的决策辅助支持.     

高校计算机辅助教育非理论教学的探讨

计算机辅助教育是现代先进教学理论所不可或缺的,如何开展计算机辅助教育课程,让计算机辅助教育理论与实践相结合,提高学生学习计算机辅助教育课程的兴趣,并结合计算机辅助教育的教学方式给出了几点建议。     

影响课堂计算机辅助教学效果的因素分析

随着计算机技术和网络技术对教育教学的深入影响,计算机逐步进入课堂,计算机辅助教学得到了空前发展。课堂计算机辅助教学是信息技术应用于教育的核心,是我国大中小学计算机辅助教育的应用重点。当前课堂计算机辅助教学仍处于研究和探索阶段,课堂计算机辅助教学受到软件、教师、环境、学生等因素的制约,其教学效果没有充分发挥出来。本文主要探讨影响课堂计算机辅助教学效果的诸多因素,分析当前课堂计算机辅助教学的认识和实践误区,从而有效地控制各因素的影响,提高课堂计算机辅助教学效果。     

浅谈计算机辅助技术在农技推广领域的应用

计算机辅助技术是采用计算机作为工具,将计算机用于产品的设计、制造和测试等过程的技术,辅助人们在特定应用领域内完成任务的理论、方法和技术。它包括了诸如计算机辅助设计、计算机辅助制造、计算机辅助教学等各个领域。＂辅助＂是强调了人的主导作用,计算机和使用者构成了一个密切交互的人机系统。     

计算机辅助教学的趋势研究

通过了解国内计算机辅助教学的发展历程,分析计算机辅助教学的现状,总结在发展中的问题与经验的基础上探讨计算机辅助教学的发展前景,为更好的实施计算机辅助教学服务提供有益借鉴。     

航运企业投资决策系统分析

针对我国航运企业的实际情况，利用ＤＳＳ技术与方法，通过对航运企业的系统分析研究，建立一套适用于航运企业的投资决策系统，以辅助或支持企业的决策者分析经营与投资的经济效果，选择经营与投资决策方案，使决策的结果更能满足航运企业经营发展的实际需要。     

计算机辅助教学方法的几点思考

探讨了我国计算机辅助教学的优势和不足,论述了我国学校课堂计算机辅助教学经历的重要转折,提出了发展我国新一代计算机辅助教学的建议,构想了计算机辅助教学的发展趋势。     

计算机辅助翻译的核心模块和技术论析

机器翻译和计算机辅助翻译极大地提高了翻译效率。在机器翻译尚不尽如人意的情况下,计算机辅助翻译作为一种替代手段,成为翻译人员的一种有效选择,目前已有诸多商业产品问世。主流的计算机辅助翻译工具的核心技术是翻译记忆,其核心模块是翻译记忆系统、术语管理系统、对齐工具、翻译项目管理工具等。立足于计算机辅助翻译的原理和特点,分析计算机辅助翻译的核心技术和核心模块,介绍主流的计算机辅助翻译软件,以期对计算机辅助翻译软件的使用和推广提供参考。     

计算机辅助学习软件现状的调研

计算机辅助学习已经面向中学教学,中学生在计算机辅助学习中受到多方面影响,这些影响因素对中学生的计算机辅助学习产生不同的学习结果,文中为了了解计算机辅助学习软件使用现状,采用问卷调查的方法,以安庆市中学生为研究对象,对中学生使用学习软件的现状及结果进行调查,并根据调查结果分析影响计算机辅助学习的因素,从几个方面对计算机辅助学习软件提出改进建议。     

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.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

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     

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