M-估计的强相合性

本文在x1，x2，…，xn，…为非随机变量的情况下讨论了模型y1=f（xi，θ）＋εi i=1，2，…，n下的M-估计θn的强相合性，其中θn满足∑^ni=1p（yi-f（xi,θn））=minθ∈⊙ ∑^ni=1p（yi-f（xi,θ））给出了M-估计具有强相合性的一个充分条件。     

协变量带误差的随机删失数据线性模型的一类半参数估计

考虑线性模型Yi=Xi^Tβ＋εi,i=1,2,…,n,其中Yi为随机右删失因变量,Xi难以观测,或需要较高成本才能得到其精确观测值,故转而观测与Xi相关的相对易得的随机变量Xi利用数据集{（Xj,Xj）}n＋N,j=n＋1估计E[X｜X^-]的同时,给出了参数向量β的一类半参数估计,并且证明了估计量的渐近正态性．     

多元正态总体中球性检验的单调性问题

设Xj1,Xj2,…,XjNj(j=1,2,…,q)为从q个p维实正态总体Npθj,12Σj抽取的一个随机子样,原假设为H:Σ1=Σ2=…=Σq=σ2Ip(其中σ2>0未知,Ip为P阶单位矩阵).文章证明了修改似然比检验的势函数仅与Σj(j=1,2,…,q)的特征根有关,并给出了其势函数的单调性结论.     

一致L-Lipschitzian非自映象不动点的迭代逼近

本文在实Banach空间中,研究迭代序列xa+1=P[(1-an)xn+an1/n+1∑n+1j=1T(PT)j-1yn]yn=P[(1-βn)xn+βn1/n+1∑n+1j=1T(PT)j-1xn],在对参数适当限制条件下逼近一致L-Lipschitzian非自映象的不动点问题。     

可交换条件下的结构回归模型

在可交换条件下，当响应变量为一维时，利用结构回归模型Yij＝αi χijβi^T εij，（χij，εij）^T-NI[(μx，O）^T,A],j=1,…，nt，t=0,1研究总体平均处理效应，通过采用极大似然的方法，给出模型各参数的估计：αi，βi，σi^2,μx，∑xx，从而给出总体平均处理效应的极大似然估计ATE。     

关于模P原根分布的一个推广

利用Kloostermann和估计、三角和估计及其解析方法研究推广的模P原根的分布性质M（p,k,δ，a)=1/2^k∑w1∈A a1…ak=1(p) |ai-ai^-|≤δp∑ak∈A∏j=1^k|aj-a^-j|^a并且给出一个分布的渐近公式。     

线性模型下分布函数的估计

利用辅助信息,针对线性模型yi=βxi xi^yεi,εi i.i.d,Fεi=0,给出了总体分布函数的估计量：F（t)=1/N[∑j∈iΔ(t-yi) ∑j∈,1/n∑j∈Δ（t-β^*xi-xi^yuj)],uj=(yj-β^*xj)/xjy^*,j∈s,改进了Chambers-Dunstan的结果。     

方差分量模型中均值参数的可容许线性无偏估计类

对（y,Xβ,^k∑i=1θiVi）,Vi〉0,i=1,2,……,k,首先给出了Sβ的线性无偏估计ψr不可容许的充要条件,然后得出了Sβ的线性无偏估ψT可容许的充要条件,从而,在此基础上给出了Sβ的可容许线性无偏估计类。     

Copula函数中参数的矩估计

针对Copula中参数θ的估计问题, 基于C(u,v)/u服从U(0,1),利用关系式1n∑ni=1Ci(u,v)u-122=112提出Copula中参数θ的矩估计,并对几种常见的Copula函数进行模拟论证.最后运用国内上证A股指数和上证B股指数进行了实证分析,说明这种估计方法的有效性.     

涉及积和式的切比雪夫型不等式的一个新证明

主旨是借助于代数和分析工具给出如下涉及积和式的切比雪夫型不等式 perA/^n П（i=1） ^n ∑（j=1） αi,j ≤perB/^n П（i=1） ^n ∑（j=1） bi,j 的一个新证明，同时也展示了该结果的一个新的应用．     

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.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

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.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

Jane Eyre——A Feminist In The 19th Century

In the 19th century the society was controlled by men, and women were just appendants of them, they had not any rights and freedom. But Jane was an exception, she showed some characteristics of early feminist. Jane showed her characteristics of feminism in three aspects: rebellion, equality, and independence. These characteristics were helpful to her success, and feminism is the only way out for women of that time.     

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-