正态分布参数的经验Bayes检验

本文旨在研究正态分布参数(μ,σ~2)的线性组合的经验Bayes检验问题。文中构造了经验Bayes判决准则,证明了它具有渐近最优(a.o.)的性质,并在适当的条件下得到了O(n~(-(k-1)λ/2k 2)的收敛速度,其中k≥2为某个自然数,而O<λ<2。     

一类特殊的指数分布族参数的经验Bayes检验:NA样本

在线性损失函数下,对NA样本下一类指数分布族参数θ的经验Bayes单侧检验问题进行了研究.通过构造参数的经验Bayes单侧检验函数,获得了它的渐近最优(a.o)性,在适当条件下得出了所提出的经验Bayes检验函数的收敛速度可以任意接近O(n-1/2).     

NA样本下双指数分布位置参数的经验Bayes估计

在平方损失NA样本下获得了双指数分布参数θ的经验Bayes估计,构造了经验Bayes(EB)估计量,证明了渐近最优且收敛速度阶为O(n-(rs-2)/2(s+2)).     

NA样本下艾拉姆咖分布参数的经验Bayes检验

【目的】研究NA样本下艾拉姆咖分布参数的经验Bayes检验问题。【方法】在同分布负相协(NA)随机列{X1,X2,…,Xn}下,利用概率密度函数的变窗核估计方法,讨论了艾拉姆咖分布参数θ的经验Bayes检验问题。【结果】首先得到了经验Bayes检验函数δn(x),然后证明了δn(x)的渐近最优性。【结论】在适当的条件下,利用相关引理和不等式,可获得参数θ的经验Bayes检验函数δn(x)的收敛速度为Ο(n~(-1/2))。     

NA样本下艾拉姆咖分布参数的经验Bayes检验

【目的】研究NA样本下艾拉姆咖分布参数的经验Bayes检验问题。【方法】在同分布负相协(NA)随机列{X1,X2,…,Xn}下,利用概率密度函数的变窗核估计方法,讨论了艾拉姆咖分布参数θ 的经验Bayes检验问题。【结果】首先得到了经验Bayes检验函数δn(x),然后证明了δn(x)的渐近最优性。【结论】在适当的条件下,利用相关引理和不等式,可获得参数θ 的经验Bayes检验函数δn(x)的收敛速度为Ο(n-1/2) 。
     

两两NQD序列下Kumaraswamy分布的经验Bayes检验问题

研究了同分布两两NQD样本下Kumaraswamy分布的经验Bayes(EB)单侧检验问题.利用核估计构造了参数相应的经验Bayes(EB)单侧检验函数,在适当的条件下证明了所提出的EB检验函数是渐近最优的,并获得了EB检验函数的收敛速度.     

Weibull分布族参数的经验Bayes检验问题

在NA样本下研究了Weibull分布族刻度参数经验Bayes(EB)单侧检验问题,利用概率密度函数的核估计,构造了刻度参数的EB检验函数,并证明了所提出的经验Bayes检验函数的渐近最优(a.o.)性,获得了其收敛速度.     

Rayleigh分布参数的经验Bayes检验:NA样本情形

目的研究负相依样本情形下Rayleigh分布参数的经验Bayes检验问题。方法利用概率密度函数核估计方法获得密度函数及其导数的非参数估计。结果获得了经验Bayes检验函数,证明了检验函数的渐近最优性,得到其收敛速度。结论利用单调经验Bayes方法证明该检验函数可以达到最优。     

NA样本下Modified Weibull模型参数的经验Bayes检验

在线性损失函数下,讨论了NA样本情形下Modified Weibull分布刻度参数的经验Bayes单侧检验问题。利用概率密度函数的核估计构造了参数的经验Bayes单侧检验函数,并获得了它的渐近最优性。在适当的条件下证明了所提出的经验Bayes检验函数的收敛速度可任意接近Ο(n-1/2)。     

威布尔分布族参数的经验Bayes检验

在"线性损失"下,文章研究了威布尔分布族刻度参数经验Bayes(EB)检验问题,并利用概率密度函数的核估计,构造了刻度参数的经验Bayes检验函数,在适当的条件下证明了所提出的经验Bayes检验函数的渐近最优(a.o.)性,并获得了它的收敛速度,最后给出一个有关主要结果的例子。     

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.     

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     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with     

Journal of Donghua University ( English Edition) Contents of Volume 31

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