指数族非线性模型MLE的渐近性质

指数族非线性模型包括施工常见的模型，诸如线性与非线性回归模型、广义线性模型等。Ｆａｈｒｍｅｉｒ和Ｋａｕｆｍａｎｎ等研究了广义线性模型ＭＬＥ的渐近性质，本文在类似于他们的正则条件下，证明了指数族非线性模型ＭＬＥ的存在性、弱相合性、强相合性及渐近正态性。从而进一步推广和发展了他们的结果。     

异方差非线性模型中QLE的渐近性质

在一类异方差非线性模型中，在一定正则条件下，证明了回归参数的拟似然估计（ＱＬＥ）的唯一存在性、强相合性及渐近正态性；最后导出了估计量的渐近方差的相合估计；从而进一步推广和发展了Ｍｃｃｕｌｌａｇｈ（１９８３）、Ｊｅｎｎｒｉｃｈ（１９６９）及Ｗｕ，ｃ·Ｆ（１９８１）的结论。     

指数族非线性随机效应模型的参数估计及其性质

对指数族非线性随机效应模型进行了较详细的讨论，给出了参数估计的方法，证明了参数估计的相合性与渐近正态性，最后人出一个具体实例。     

误差密度的相合估计

对于线性模型，误差序列，有未知密度函数ｆ（ｘ）．在对核ｋ（·）及Ｍ－估计中的ρ（·）施加非常弱的条件下，证明了ｆ（Ｘ）的核估计的弱相合、强相合和一致强相合性．其中：为β的Ｍ－估计．     

非线性模型匹配问题的研究

研究了非线性系统的模型匹配问题（ＭＯＤＬＥＭＡＴＣＨＩＮＧＰＲＯＢＬＥＭ简称ＭＭＰ）。模型匹配是指，用参考模型的输入输出行为匹配结果，为实际控制系统设计一个补偿原，实质上就是强制的模型跟踪问题。文中所述非线性模型匹配问题的局部解决是通过静态反馈解耦后给出的。其指导思想是在一般条件下，当且仅当线性化控制系统和参考模型在其平衡点附近可解，则非线性模型匹配问题才可解。而且，一般条件是可辨识的。这些条件也可用来解决实际控制系统的动态输入输出解耦问题。     

随机缺失下半参数回归模型的最大经验似然估计

考虑了随机缺失数据下非线性回归模型的估计问题,利用最大经验似然估计的方法给出了回归系数、光滑函数的最大经验似然估计,并在一定条件下证明了所得估计量的渐近正态性和强相合性。     

线性模型中误差分布的基于L1估计的相合核估计

线性模型ｙｉ＝ｘｉ＇β＋ｅｉ，ｉ＝１，…，ｎ，的误差序列｛ｅｉ｝ｉ＾ｎ＝１有未知密度ｆ（ｘ）。本文在一定条件下证明了ｆ（ｘ）的核估计ｆｎ（ｘ）＝１／ｎａｎ∑＾ｎｉ＝１ｋ（ｅｎｉ－ｘ／ａｎ）的弱相合性，逐点强相合性，一致强相合性，其中ｅｎｉ为Ｌ１估计的残差。     

线性小波密度估计Ｌ１—模相合性

用小波方法对未知密度f(x)进行估计,并在某些假定下建立了一种估计量的Ｌ１－模型强相合性,以及在某些限制下,弱相合与强相合的等价性,顺便也给出Ｌ１－相合的一个必要条件。     

非线性随机解释变量模型参数的假设检验

非线性随机解释变量经济计量模型y=f（x,θ0）＋ε,未知参数氏的最小二乘估计的存在性、相合性与正态性已在有关文献中得到阐述,在此基础上,给出未知参数θ0的线性和非线性假设检验的检验统计量．     

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。     

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