服务系统中的服务人数的极限性质

令《Ｘｎ，ｎ≥１》为ｉ．ｉ．ｄ．非负ｒ．ｖ．ｓ．，Ｘｎ，１≤Ｘｎ，２≤…≮Ｘｎ，ｎ为Ｘｉ，ｉ≤ｎ的次序统计量。《ｓｎ，ｎ≥１》为一正常数列，记Ｎｎ＝ｍａｘ《ｋ≤ｎ：Ｘｎ，１＋Ｘｎ，１＋…＋Ｘｎ，ｋ≤ｓｎ》。本文讨论了Ｎｎ的几乎处处收敛性与渐近正态性，改进了Ｂｒｕｓｓ的结果。     

平稳高斯序列超过数点过程与部分和的联合渐近分布

｛Ｘｎ｝为标准化平稳高斯序列，Ｎｎ为Ｘ１，Ｘ２，，Ｘｎ对水平ｕｎ（ｘ）的超过数形成的点过程，ｒｎ＝ＥＸ１Ｘｎ＋１，Ｓｎ＝∑ｎｉ＝１Ｘｉ．ｒｎｌｏｇｎ→０时，在一定条件下得到Ｎｎ与Ｓｎ的渐近独立性．     

双下标随机变量顺序统计量和的一个强大数定律

本文对双下标随机变量Ｘｎ１，Ｘｎ２．．．，Ｘｎｎ的顺序统计量Ｘ１（ｎ），Ｘ２（ｎ），．．．，Ｘｎｎ，在其分布连续且存在ｐ阶矩（ｐ＞２）的条件下，获得了它们的加权和的强大数定律。     

SLUTSKY定理的推广

Ｓｌｕｔｓｋｙ定理指出：如果随机变量序列｛Ｘ１ｎ｝，｛Ｘ２ｎ｝，…，｛Ｘｍｎ｝分别依概率收敛到ｍ个有限常数ａ１，ａ２，…，ａｍ，那么任意一个有理函数Ｒ（Ｘ１ｎ，Ｘ２ｎ，…，Ｘｍｎ）也依概率收敛到常数Ｒ（ａ１，ａ２，…，ａｍ），只要Ｒ（ａ１，ａ２，…，ａｍ）有限．本文从两个方面推广了这一结果：第一，若上述随机变量序列分别依概率收敛到随机变量Ｘ１，Ｘ２，…，Ｘｍ，ｇ（ｘ１，ｘ２，…，ｘｍ）是ｍ维欧氏空间Ｒｍ上的连续函数，则ｇ（Ｘ１ｎ，Ｘ２ｎ，…，Ｘｍｎ）依概率收敛于ｇ（Ｘ１，Ｘ２，…，Ｘｍｎ）．第二，若上述随机变量序列分别收敛到ｍ个有限常数ａ１，ａ２，…，ａｍ，又Ｂｏｒｅｌ可测函数ｇ（ｘ１，ｘ２，…，ｘｍ）在点（ａ１，ａ２，…，ａｍ）处连续，则ｇ（Ｘ１ｎ，Ｘ２ｎ，…，Ｘｍｎ）依概率收敛到ｇ（ａ１，ａ２，…，ａｍ）．     

实对称矩阵逆特征值问题的可解条件

该文考察以下２个逆特征值问题（１）问题（ＳＡ）；设Ａ＝（ａｉｊ）为ｎ阶实对称矩阵，其主对角元ａｉｊ＝０，ｉ＝２，．．．．ｎ，给定时角矩阵Ａ＝ｄｉａｇ（λ１，λ２，．．．．λｎ）∈Ｒ＾ｎ×ｎ，求一实时对角矩阵Ｘ＝ｄｉａｇ（ｘ１，ｘ２，．．．．ｘｎ）∈Ｒ＾ｎ×ｎ，使λ（Ａ＋Ｘ）＝λ（Ａ），（Ⅱ）问题（ＳＭ）：设Ａ（ａｉｊ）为ｎ阶实时对称矩阵，其主对角元ａｉｊ＝１，ｉ＝１，２，．．．．ｎ。给定对角矩阵Ａ     

关于矩阵方程∑(from i=1 to n) A_iX_iB_i=F的可解性

本文考虑含有ｎ个未知矩阵Ｘ１,Ｘ２,Ｘ３,…,Ｘｎ的非齐次矩阵方程：Ａ１Ｘ１Ｂ１＋Ａ２Ｘ２Ｂ２＋…＋ＡｎＸｎＢｎ＝Ｆ,（１）其中Ａｉ∈Ｃｍ×ｌｉ,Ｂｉ∈Ｃｐｉ×ｑ,Ｘｉ∈Ｃｌｉ×ｐｉ,Ｆｉ∈Ｃｍ×ｑ．我们先给出一个求解的方法;然后利用矩阵的拉直运算和...     

微商共同作用在半素环的某些多线性多项式上的结果

本文主要讨论了半素环的微商共同作用在某些扩张形心上的特殊多线性多项式的问题。给出了，假设Ｒ是带有扩张形心的半素环，Ｑｍｒ为Ｒ的极大右商环，ｆ（Ｘ１，Ｘ２，．．．Ｘｎ）是Ｒ的扩张心形Ｃ上的非中心值的多线性多项式。如果ｆ（Ｘ１，Ｘ２，．．．Ｘｎ）的单项式的系数之和（记为ｆｓｃ）的右零化子为零并且Ｒ的微商ｄ和δ共同中心作用在ｆ（ｘ１，ｘ２，．．．ｘｎ），ｘｉ∈Ｉ（ｉ＝１，２，．．．ｎ）上，这里Ｉ为Ｒ的筒     

Levy不等式的推广

设Ｂ为一可分的赋范空间（Ｘｉ）ｉ＝１是Ｂ值独立，对称的随机元Ｓｎ＝ｘ１＋．．．Ｘｎ（ｎ〉１），若Ｑ（ｎ）是（１，２，．．．ｎ）的一些子集构成的集合并使，对Ｑ（ｎ）中任意两个元素Ｍ，Ｎ都有Ｍ∩Ｎ等于Ｍ，Ｎ或Х则我们有Ｐ（ω：ｓｕｐ‖∑Ｘｉ‖〉ｔ）≤２Ｐ（‖Ｓｎ‖〉ｔ）。     

一类约束下的参数估计问题

考虑线性模型ｙｎ×１＝Ｘｍ×ｐβｐ×１＋εｎ×１，（１）其中ｙｎ×１为样本观测值，Ｘ为ｎ×ｐ阶的设计阵，β为ｐ维参数向量，εｎ×１为ｎ维随机向量，ε为随机误差．Ｅε＝０，Ｄε＝σ２Ｖ这里σ２已知或未知皆可，Ｖ为ｎ×ｎ阶非负定阵．对于线性模型（１），...     

伴随上的自然变换

引进了自然变换函了的概念，建大了自然同构与伴随间的一类等价关系，系统研究了伴随上的自然变换，主要结果：设＜Ｆ，Ｋ１，η１，ε１＞：Ｘ→Ａ，＜Ｇ，Ｋ２，η２，ε２＞：Ｘ→Ａ．ｎ：Ｆ→Ｇ，ｍ，Ｋ１→Ｋ２，若ｎ２＝（ｍ°ｎ）η１，ε１＝ε２（ｎ°ｍ），则ｍ，ｎ为自然同构．     

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