广义M-集周期芽苞Fibonacci序列的拓扑不变性

研究了复映射z←zα+c(α<0)所产生的广义Mandelbrot集,利用逃逸时间算法绘制广义M集混沌分形图谱,经大量计算机数学实验,得知逃逸区嵌于稳定区中,并由此得出稳定区的周期数·同时利用代数方程解出周期芽苞的数量及位置,为更好的了解M集的结构提供了理论依据·另外作者发现M集周期芽苞的Fibonacci序列的拓扑不变性,并在目前公认的通向混沌的三种途径的基础上,阐述了Fibonacci序列是通向混沌的又一途径,为建立新的数据加密、压缩、存储等方法提供了理论基础     

基于超越函数的广义Mandelbrot和Julia分形图

借鉴一般复动力系统z2+c的M集及J集的对应关系,通过计算机实验方法,给出了超越函数λcos(z)广义M集中的点对应广义Julia集的结构特征,并对Mandelbrot集与Julia集之间的关系进行了分析·拓广了普通多项式复动力系统的Mandelbrot集和Julia集的分形结构对应关系·进一步展示了MJ对应关系的普遍性,为Mandelbrot集和Julia集的发展提供了新的思路·由此可以看出,计算机模拟实验在探讨复杂性和各种未知现象起着越来越重要的作用     

复映射z←z~(-2)+c广义M集倍周期芽苞标度性

研究了复映射 f(z,c) =z-2 +c所产生的广义M集 ,利用周期分类法绘制了广义M集的分形图 ,分析了M集周期芽苞及倍周期芽苞在主轴上同分岔图的对应关系·从分岔图入手 ,通过大量计算机数学试验 ,发现了主轴上倍周期芽苞在超吸引点处符号序列的排列规律 ,给出了构造任意倍周期芽苞字提升方程的一个算法·利用二分法解字提升方程 ,得到主轴上各倍周期芽苞的超吸引点 ,发现M集倍周期芽苞在主轴上存在一个普适常数δ ,并在非主轴上进行了验证·深刻揭示了分形的自相似本质 ,为进一步研究分形的精细结构提供了有力的帮助     

复映射f(z;c)=z~(-2)+c倍周期芽苞Julia集的标度性

利用逃逸时间算法绘制了复映射f(z,c)=z-2+c倍周期超吸引点处Julia集的分形图,指出M集与J集之间的紧密联系·通过大量试验,得到了构造任意倍周期超吸引点处符号序列的一个规律,由此规律提出一种构造字提升方程的算法,并利用该算法获得了主轴上超吸引点的精确解以及Julia集的不动点·研究发现Julia集存在两个普适常数,并通过试验在非主轴上验证了普适常数的正确性·     

复映射z←sinz2+c的广义M-J混沌分形图谱

推广了由多项式函数族构造的M J混沌分形系统,研究了复映射z←sinz2+c所构造的广义M集和J集,利用逃逸时间算法绘制了M集和J集的混沌分形图·通过大量计算机数学实验,找到了M集各主要周期芽苞的分布规律,并与具有典型意义的复映射z←z2+c所构造的M集进行了对比分析,指出了两者之间的异同·发现了复映射z←sinz2+c的广义J集的非连通特殊性,分析了图谱构成及周期点位置,指出其具有无穷嵌套、自相似的分形结构·通过研究各周期芽苞内的点所对应的J集分形图,得出了广义M集周期芽苞内点的周期数与相应J集吸引周期轨道周期数相等的结论,并讨论了M集与J集之间的对应关系·     

科学与艺术的结晶《Mandelbrot-Julia混沌分形图谱》——五大宇宙定律与时空谱

提出了一种具有Mandelbrot-Julia混沌分形图谱的曼德布罗特(Mandelbrot)混沌分形时空观,对经典的逃逸时间算法加以改进,提出了旋转逃逸时间算法,构造了一系列由复映射变换f1(z)=zm+c(m≥2,m∈N)和f3(z)=zω+c(ω=α+iβ)所确定的广义Mandelbrot集(简称M-集或M-分形图)及其对应的Julia集(简称J-集或J-分形图),提供了对其深入研究的新现象、新图形和新规律"图中嵌图、形中镶形、拉压与折叠、统计自相似、无限周期有稠性、混沌分形有新序".算法利用面向WEB的Java Applet技术实现,提供了一种基于Internet的分布式混沌分形理论研究机制.     

复映射族z~(-2)+c广义M集的标度性质

在复映射 f(z,c) =z-2 +c的广义Mandelbrot集中 ,发现了主周期芽苞的标度规律·用符号动力学中的方法对其做了研究 ,给出了主周期芽苞字的规律 ,及字相应的提升方程 ,通过解字提升方程 ,给出了任意精确常数 μ的算法 ,通过大量的计算机计算得到了一个常数 μ =1 ·标度常数为 1的情况在复映射的标度常数研究中为首次发现·提出了常数 μ普遍存在于一般有理迭代的广义Mandelbrot集中的猜想     

拓扑嵌套分形空间构造广义高阶M集

通过计算机数学实验方法,对高阶复映射f:z←zn+c(n>2,n∈N)利用逃逸时间算法,构造一系列高阶Mandelbrot混沌分形图,从而发现其拓扑不变性以及周期芽苞分布与映射阶数之间的关系,并利用旋转对称性,改进了逃逸时间算法,提出了旋转逃逸时间算法·根据此算法利用面向WEB的JavaApplet绘制了高阶M集分形图,解决了复杂条件下混沌分形系统计算机模拟的时空复杂性,提供了一种基于Internet的分布式混沌分形理论研究机制·     

M-J混沌分形图谱中Misiurewicz点的分布规律

利用计算机数学试验的方法研究了M-J混沌分形图谱中的准周期点——Misiurewicz点的性质及分布规律,得到了Misiurewicz点和M集周期芽孢的拓扑分布关系,给出Misiurewicz点和M集周期芽孢之间的递推公式,为进一步揭示M集的图像内部结构特征以及其内部的周期点、准周期点的性质提供了一个有益的探讨.     

正实数阶广义M集的嵌套拓扑分布定理

阐述了由复映射z←zα+c(α>0)所构造的广义Mandelbrot集(简称广义M集)的定义;通过改变参数α,作出了一系列正实数阶广义M分形图,这些分形图类似若干个花瓣组成的花朵;给出了正实数阶广义M集的嵌套拓扑分布定理,并对α取正小数时选取相角θ∈[0,2π)的广义M集的雏瓣的出现原因、位置及大小进行了分析·     

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