BR_0代数与FI代数的关系

研究了模糊命题演算形式演绎系统L*和与之在语义上相匹配的R0代数,以及基础R0代数和基础L*系统,提出了BR0代数的简化形式的概念,讨论了BR0代数与FI代数的相互关系.     

关于BR0-代数的一些新性质

基于R0-代数（BR0-代数）对于模糊命题逻辑系统L＊（BL＊）的语义的重要性,对R0-代数和BR0-代数作更进一步的探讨,得到了它们的一些新的性质以及BR0-代数成为R0-代数的充分必要条件．这些结果将有助于对相应的形式逻辑系统与模糊推理的研究．     

R_0代数,MV代数的等价刻画

通过对R0-代数及其命题演算系统L*的研究,讨论R0-代数的定义,得到两种非格序入手的等价刻画;对MV代数的简化定义进一步简化,得到MV代数的另一种非,蕴含型的等价刻画.     

关于形式系统Y^＊及R0-代数的若干结果

研究了模糊逻辑的形式演绎系统Y^*及R0-代数的性质，得到形式系统Y^*的两个更简捷的等价系统，证明了R0-代数的对偶代数是有界逆序对合BCK-代数，并给出关于R0-代数的一个重要反例，说明了R0-代数中V与→是各自独立的．     

R0代数公理系统的简化与独立性

研究了一类重要的模糊逻辑代数系统－－R0代数，给出了R0代数一系列基本性质及与其它一些模糊逻辑代数系统之间的关系，讨论了R0代数公理系统的简化问题，得到R0代数的两个特征定理，并证明了这两个特下定理中条件的独立性，由此得到R0代数两个独立的公理系统，研究结果表明，R0代数类和弱R0代数类都构成代数簇，即等式代数类，因而这两个代数类关于子代数、同态像以及直积是封闭的。     

基础R0-代数与BCI/BCK-代数的关系（Ⅰ）

讨论了基础模糊命题演算形式演绎系统L*相匹配的基础R0-代数与一类重要的BCI/BCK-代数间的相互关系,给出它们之间的等价性定理.分析了基础R0-代数与一类重要的BCI/BCK-代数间的区别与联系,得到一些十分有趣的性质.     

关于R0代数公理系统的简化与独立性的修正

目的简化R0代数的定义。方法修正并利用《R0代数公理系统的简化与独立性》一文的主要结果来考察R0代数的原始定义及其性质。结果给出了R0代数一个新的特征定理并证明了该定理中各条件相互独立。结论所给出的（弱）R0代数的简化定义已是最简。     

可交换弱R0代数

简化了弱R0代数及R0代数的定义。在弱R0代数的基础上，提出可交换弱R0代数，并讨论了它的一些新的性质。探究了可交换弱岛代数与格蕴涵代数之间的关系，以及与MV代数之间的关系。     

关于BR0-代数弱完备性的证明

目的对BR0-代数自身的完备性问题进行研究。方法研究了王国俊教授建立的模糊命题演算的形式演绎系统L*和与之在语义上相匹配的R0-代数,并结合吴洪博教授所定义的BR0-代数,从伴随的角度切入。结果在BR0-代数中定义了BR0-等式和BR0-方程,通过全序BR0-代数证明了BR0-代数自身的弱完备性。结论得到了BR0-代数的完备性定理,为相应形式逻辑系统与模糊推理的研究提供了理论框架。     

粗糙集代数与R_0-代数

在粗糙集的代数方法研究中,一个重要的方面是从粗糙集的偶序对(<下近似集,上近似集>)表示入手,通过定义偶序对的基本运算,从而构造出相应的粗代数并发现R0-代数能够抽象刻画偶序对的性质。讨论了粗糙集代数与R0-代数的关系以及由粗糙集代数构造R0-代数的方法,借助近似代数上的原子及同余关系,证明了在适当选取蕴涵算子和余运算之后,粗糙集代数就成为R0-代数。     

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     

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