非完整非保守系统在广义事件空间中的相对论性广义Lagrange原理

本文利用广义事件空间中的相对论性D’Alembert原理,推导出非完整非保守系统在广义事件空间中的相对论性广义Lagrange原理。     

任意阶非完整系统在导数空间相对论性的Hamilton原理及其运动方程

定义了导数空间中相对论性的广义动能函数和广义Ｌａｇｒａｎｇｅ函数,推广得到了导数空间中相对论形式的Ｈａｍｉｌｔｏｎ原理,由此导出了适用于完整和非完整系统的相对论性的运动方程。     

准事件空间中相对论性的广义Volterra方程

用事件空间中的相对论性Ｄ’Ａｌｅｍｂｅｒｔ原理,推导出准事件空间中的相对论性ｌｏｔｅｒｒａ方程一并 由此方程得系统能量积分的条件和准事件空间中的相对论性广义     

广义事件空间中的相对论性Mac—Millan型运动方程

从相对论性的D′Alembert变分原理出发，在广义事件空间中建立了非完整非有势系统的相对论性Mac-Millan型参数运动方程。从该方程可以直接得到相对论性的广义能量关系，位形空间中的相对论性Mac-Miaaan型方程是该方程的特殊情况，事件空间和位形空间中的经典力学的Mac-Milolan方程也是本文的特款。     

广义事件空间中相对论性的Boltzmann—Hamel方程

给出了广义事件空间中的相对论性普遍中心方程，建立了广义事件空间中的一阶非线性完整系统的相对论性Ｂｏｌｔｚｍａｎｎ－Ｈａｍｅｌ型运动方程。     

相对论性非线性非完整力学系统的Birkhoff表示

研究相对论性非线性非完整力学系统的 Ｂｉｒｋｈｏｆｆ 表示．引入相对论性广义动能函数，采用凝固导数以及凝固偏导数，得到了相对论性非线性非完整系统凝固导数形式的 Ｄ’ Ａｌｅｍｂｅｒｔ＿ Ｌａｇｒａｎｇｅ原理、 Ｒｏｕｔｈ 方程；运动方程表成显形式，进一步实行 Ｂｉｒｋｈｏｆｆ 化，将 Ｂｉｒｋｈｏｆｆ 动力学方程推广应用于相对论性非线性非完整力学系统；并给出应用实例     

变质量可控制力学系统的相对论性ЦeHOB方程

在可控力学系统中同时考虑经典变质量和相对论变质量的情况,建立了变质量可控力学系统的相对论性Ｄ’Ａｌｅｍｂｅｒｔ－Ｌａｇｒａｎｇｅ原理的ЦｅＨＯＢ形式,得到了变质量非完整可控制力学系在广义价值和准坐标下的相对论性ЦｅＨＯＢ方程。     

导数空间任意阶非完整系统相对论性的D’Alembert原理及运动方程

在导数空间定义了相对论性的广义动能函数，构造了导数空间中相对论性的广义加速度能函数，导出了导数空间中任意阶非完整系统相对论性的Ｄ’Ａｌｅｍｂｅｒｔ原理及运动方程．     

变质量高阶非完整系统的相对论性Vacco动力学方程

给出了质量系统的相对论性ＤＡｌｅｍｂｅｒｔ－Ｌａｇｒａｎｇｅ原理，建立了变质量高阶百诉有关相对论性Ｖａｃｃｏ动力学方程。     

事件空间中非完整系统的守恒律

首先给出了事件空间中的 Ｄ’ Ａｌｅｍｂｅｒｔ＿ Ｌａｇｒａｎｇｅ 原理;其次基于该原理在无限小变换群作用下的不变性,得到了事件空间中非完整系统的守恒律;最后举例说明结果的应用．     

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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