广义r-部完全超图的边色数

研究了广义r-部完全超图的边色数的问题.在r-部完全超图与t-一致完全超图的着色基础上,确定一类特殊的广义r-部完全超图的边色数,对一般的广义r-部完全超图的边色数给出了上界,推广了r-部完全超图与t-一致完全超图的着色结论.      

线性超图的边着色问题

设S是由边秩大于等于3的边导出的部分超图,q表示超图的边色数。本文给出了满足Δs=2,qs=3,这类线性无环超图边色数的上界。进一步得到了n个顶点的无环线性超图H,如果满足Δs≤3,qs≤3,则q(H)≤n。此外,还讨论了r阶射影平面的边色数q(H)=r2-r+1。     

狭义超树与广义超树

通过给出狭义超树与广义超树的定义,利用超图圈数的计算公式及超图对应的二部图,得到了一系列狭义超树和广义超树之间关系的有意义命题,进一步完善了超树的理论系统.     

系列平行图的边色数

Vizing(1964年）和Gupta（1966年）各自独立地证明了边着色中的重要定理：对任何简单图G,表X′（G）＝△或X′（G）△＋1。但确定一个图G的边色数仍是一个尚未解决的问题。本文利用系列平行图的结构性质，确定了它的边色数。     

线性超树的孤立点与悬挂边数目

在先通过引入线性超树的对应二部树的特殊对应性质来刻划超树的顶点与超边的结构,得出了线性超树的孤立点数目的计算公式和一系列推论,从而进一步揭示了度序列与线性超树的关系．然后给出了求线性超树悬挂边数目的可行算法,其算法复杂度仅为O（｜E（T）｜^2）．这对于充实超树的计数理论与应用实践均是有益的．     

超图在树环中的嵌入问题

H为定义在树环G上的一个超图，将H的每条超边映射为G中不同的树，称为超边在G中的嵌入问题．超图在树环中的嵌入问题即为寻找H在G中的最优嵌入使得G中任一边被H所有超边的嵌入经过的最大次数最小．将超图嵌入圈(MCHEC)问题的算法简化可得EHTR问题的一个PTAS算法，且可证明EHTR问题为NP-完全的．     

图Fm△↓Wn的边色数和邻强边色数

给出了Fm△↓Wn的定义。研究了Fm△↓Wn边染色和邻强边染色。得出了Fm△↓Wn的边色数和邻强边色数．     

基于拉普拉斯度的k-均匀超图的图熵极值

基于一般图中图熵的定义,定义了超图基于拉普拉斯度的图熵.将简单图的图熵的一些结论推广到k-均匀超图.利用一种移边操作,分别确定了在k-均匀超树、单圈k-均匀超图、双圈k-均匀超图和k-均匀化学超树中基于拉普拉斯度的图熵最大值和最小值,并确定了相应的极值图.     

四元超图的模型及其性质

提出了一种基于复杂网络理论的四元超图的模型。定义了基本的网络衡量值,研究了四元超图中顶点的度分布及额外度的分布,构建了随机四元超图的模型,并且探讨了巨大分支在四元超图中存在的条件。本研究可用于分析研究社会网络中一些大规模的复杂超网络的结构及其拓扑性质。     

完美C-超图的一个充分条件

混合超图是含有两种超边的超图，一种称为D-超边，一种称为C-超边，它们的区别主要体现在着色要求上．在任一着色中，要求每一D-超边至少有两个点着不同的颜色，每一C-超边至少有两个点着相同的颜色．只含D-超边的超图称为D-超图，只含C-超边的超图称为C-超图．主要讨论了C-超图的完美性问题，给出了完美C-超图的一个充分条件．     

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.     

橡胶颗粒沥青混合料低温抗裂性试验研究

以AC-13级配为基础,将橡胶颗粒代替部分集料掺入混合料中,以低温弯曲试验为评价方法对不同橡胶颗粒掺量下沥青混合料的低温抗裂性进行研究,并引入应变能密度值对混合料的低温抗裂性进行综合评价.试验结果表明:橡胶颗粒沥青混合料试件的破坏微应变均超过2 300,满足冬寒区的技术指标;无论是否掺加橡胶颗粒,随着温度的下降,沥青混合料破坏时的最大弯拉强度增大,弯拉应变降低,劲度模量增大;弯曲应变能密度在胶粒掺量为1%左右时具有较大的弯曲应变能密度值,此时橡胶颗粒沥青混合料具有较好的低温抗裂性.     

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-