带有规划库的规划器设计模型研究

利用在规划识别中的规划库思想,在图规划的基础上提出了规划库的组织形式、形成过程、搜索策略以及学习方法.这样在规划器中应用规划库,能够有效地利用原有规划的成果,为迅速地检索有效规划提供了一种新的选择方式.同时,利用多agent之间的协作,在复杂的环境中解决复杂问题时,规划器可以相互共享规划库,从而会大幅度地提高规划器搜索有效规划的效率.     

用对偶规划参数解法求解广义几何规划

讨论了广义几何规划及用参数解法解对偶规划的算法，并成功研制了困难度为１或是０的广义几何规划求解的软件。通过大量的数学算例和工程算例的考核，结果令人满意。     

电力系统最优规划方法研究

数学规划一向是电网优化计算的主要工具,当前仍在发展,与此同时模糊数学和灰色理论正在向电力系统领域渗透。本文着重介绍近来研究成果。     

不确定优化问题的研究动向

讨论了不确定优化问题的研究方法，综述了随机规划、模糊优化和区间优化这三类不确定优化问题的主要研究算法、优缺点，提出了进一步研究的发展方向。     

应对规划器模型的研究

给出了敌意环境、敌意规划的定义和一种对敌意规划进行识别和应对的应对规划器模型.由此可以对敌意规划进行识别,并根据相应的策略产生应对规划,用以抵制敌意规划的执行,实现主动识别、主动防御.敌意规划的应对规划器模型在网络安全、商业竞争及军事等领域有很好的应用前景.     

概率规划的研究与发展

概率规划是智能规划研究的一个重要方面,首先给出概率规划领域定义语言,并介绍其语法及语义,随后重点介绍了求解概率规划的各种方法,如动态规划、启发式动态规划和基于规划图的方法等,并分析了各种方法的特点．最后对国际概率规划比赛进行了介绍．     

凸二次参数规划的逆规划及其等价形式

主要讨论了经济中常用的凸二次参数规划的逆问题、相关逆规划的等价性，并给出一定条件下的凸二次参数规划的逆规划就是一个线性规划，从而其相应的算法问题得到了解决．     

浅谈城市规划的弹性

概述了城市规划弹性的含义、理论依据、程序与有穷力度及无限反复的特性，并从三个方面提出正确把握不同规划阶段的弹性。     

多目标线性规划两种解法的比较

目标规划和模糊规划是求解多目标线性规划问题的两种方法,其基本思想都是将多目标问题转化为单目标规划.本文阐明了两者的相似处以及如何将两者互相转换,并且将它们结合起来,提出了新的模型.     

油田开发模糊目标规划模型及求解

本文将模糊目标规划的方法应用于油田开发多目标规划问题。使用的模糊目标规划模型,包括最小至最大模型和偏差量加权求和模型,用于解决油田开发规划中涉及的多个相互制约的目标问题。对于实例的研究证明了模糊目标规划方法适用于油田开发规划。     

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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