φ混合序列的若干收敛性质

讨论φ^～混合序列的收敛性质,得到3个完全收敛定理,将φ^～混合序列独立情形下的收敛性质较好地推广到相依情形．     

关于测度的淡收敛

本文给出使测度淡收敛的映射定理成立的一个充分条件,并将乘积测度弱收敛定理推广到淡收敛的情形.     

两两NQD列的收敛定理

讨论了两两NQD列的收敛性质,独立情形的强大数定律得到推广．在推广的三级数定理的基础上,获得了判别两两NQD列收敛的一些新的结果．     

一类特殊随机二次型的极限定理

文章采用鞅极限定理和一些矩阵不等式考查了一类特殊的随机二次形stAs的强、弱收敛性。当A为非负定矩阵且其最大特征根有限,随机变量存在有限的四阶矩情形下,获得了二次型的强收敛。并且该强收敛结果是一个传统极限定理的推广。当A为正定矩阵且其最大特征有限,在二阶矩有限的情况下,获得了二次型的弱收敛。     

■混合序列的若干收敛性质

讨论■混合序列的收敛性质,得到3个完全收敛定理,将■混合序列独立情形下的收敛性质较好地推广到相依情形.     

φ^～混合序列的强大数律

讨论了一类较广泛的φ^～混合序列的收敛性质，获得了与独立情形一样的三级数定理等收敛性质，并由此得到与独立情形一样的Kolmogov强大数律的充分条件．     

(ψ)混合序列的若干收敛性质

讨论(ψ)混合序列的收敛性质,得到3个完全收敛定理,将(ψ)混合序列独立情形下的收敛性质较好地推广到相依情形.     

关于极限定理(Ⅱ)

建立相互独立随机变量和局部极限定理的困难点在于估计每一加项特征函数在无穷远点的无穷小特征。本文引伸了作者在[1],[13]中所用的方法给出一族随机变量组序列服从局部中心极限律的定理和它的证明。所得结果推广了[13]中的结果而且也包含了同分布加项情形相应的结果。引用同样的方法,作者给出了一个相互独立随机变量组序列和的大偏差局部极限定理。组序列情形下的大偏差极限定理(据作者所知)还是第一次提出来的。大偏差积分极限定理的问题允许作同样的处理(参考[9])。运用以上方法可处理格子点分布情形的局部极限定理的问题,及向非正态收敛情形下类似的问题(参阅[17]、[15]和[14])。     

关于多元分布函数列弱收敛的一个定理

本文证明了关于多元分布函数列弱收敛的一个定理,从而把[1]中P138定理3推广到了多元的情形。     

非汉字符号"混合序列的强大数律

讨论了一类较广泛的~混合序列的收敛性质,获得了与独立情形一样的三级数定理等收敛性质,并由此得到与独立情形一样的Kolmogov强大数律的充分条件.     

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.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

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