具有状态约束的动态经济系统最优控制

利用动态投入产出模型和控制理论方法相结合,对经济系统进行分析和宏观调控·具有状态积分不等式约束的确定性线性经济系统最优控制模型,是基于动态投入产出理论建立的·利用无约束条件的极大值原理,分析了最优技术与经济控制策略的存在性和惟一性,使得产品的实际产出尽量接近理想产出,同时使能源、资金等消耗最小,并给出了最优反馈控制的形式·     

基于.NET平台的Excel报表研究与实现

在MIS系统中,设计一个既要满足系统功能又要符合用户习惯的报表,是MIS系统的重点和难点。在.NET环境下,以在线评教系统为基础,讨论一个基于结构可变的数据源,通过与COM组件通讯,实现了系统与Excel组件无缝连接的动态的中国式报表。     

动态报表组件设计及其应用

基于OLE技术,通过在VB应用程序中使用Office组件对象,可以充分发挥各软件的协作性,提高MIS开发效率.以动态报表生成组件设计及实现为例,论述了通过VBA使用OLE技术的机理,对MIS系统中多软件协作开发有一定的参考价值.     

企业网上运行MIS系统的安全措施

基于有关计算机网络安全的重要性，结合某企业MIS系统的设计，介绍了企业网络实施的安全策略，特别介绍了企业网上安全运行MIS系统所实施的具体方案。     

敏捷信息系统体系结构的研究

根据现代制造环境下业务流程重组和动态企业建模的需要 ,提出敏捷信息系统的体系结构 ,讨论了敏捷信息系统体系结构的概念、组成、构造原则和结构框架。该结构采用构件支持动态企业建模 ,实现了系统级的软件重用 ,通过建立管理任务平台实现 MIS应用系统和企业过程的分离 ,从而使信息系统支持复杂的动态企业过程。     

Web MIS系统的测试设计和实现

为了对基于三层架构的Web MIS系统进行测试,以论文评审系统为例,分别从功能测试和性能测试两方面着手,探讨了Web MIS系统功能测试用例的设计及执行,提出Web MIS系统的性能测试设计和实施方案,并用实例验证了该方案的可行性,对同类系统的测试具有一定的借鉴意义。     

动态投入产出技术在煤炭产业结构优化中的应用

以动态投入产出分析方法作出切入点,以煤矿的煤与非煤产业为具体研究对象,利用最优化理论和投入产出分析方法,以追求煤矿企业最大工业总产值为目的,建立多目标动态投入产出优化模型,并提出了算法与算例,计算结果说明,所建立的模型、给出的方法是可行的。     

基于数据字典的通用查询平台的设计

传统的MIS系统的查询模块需要随着用户需求的变化而不断重新设计,针对MIS系统传统开发方法的不足,提出一种基于数据字典的通用查询平台,目的是解决MIS系统中的查询系统不能通用的缺点.方法是通过改进数据字典的可扩展性和通用性的设计,实现程序开发与表结构的分离,并结合了界面动态生成的技术,进一步实现了SQL语句和界面的自动动态生成而无须编码,使平台的通用成为可能.平台在B/S模式下实现,基于J2EE规范并引入MVC思想.提高了开发效率和开发质量.     

制造企业能量投入产出优化

物质、能量和信息是构成当代制造企业的三大要素,能量系统是整个企业的一个子系统.由企业能物流分析得到企业能量系统静态投入产出方程,将其改造成带一步延迟的W. Leontief型能量系统动态投入产出模型.作者用线性二次型最优控制方法,以确定生产过程中各生产部门生产能力和资源的合理规划与配置,优化企业能量系统结构.给出了一个计算示例.     

管理信息系统的通用性与生成问题

本文论述了我国目前MIS的现状以及应采取的开发策略,对提高MIS软件通用性提出了几种常用的方法。重点对MIS的生成问题作了较深入细致的探讨,对MIS生成系统从设计出发点、设计目标、任务和系统模型作了详细论述,并对实现MIS生成系统模型的主要技术方案作了探讨性的描述,指出MIS生成系统是一个很有前途的MIS开发工具。     

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     

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