关于完全三部图K(n-k,n,n+k)的色性

设Ｇ为简单图,Ｐ（Ｇ,λ）的色多项式,若对任意简单图Ｈ满足Ｐ（Ｈ,λ）＝Ｐ（Ｇ,λ）,都有Ｈ与Ｇ同构,则称Ｇ是色唯一图,设Ｋ（ｍ,ｎ,ｒ）表示完全三部图,证明了：（１）对任意非负整数ｋ,若ｎ≥２√－３ｋ／３＋ｋ＾２,则Ｋ（ｎ－ｋ,ｎ,ｎ＋ｋ）是色唯一图。（２）若ｎ≥９,则Ｋ（ｎ－３,ｎ,ｎ＋３）是色唯一图。     

图的升分解问题的两个新结果

Ａｌａｖｉ等人在１９８７年定义了图的一种新分解,即“升分解”（ＡｓｃｅｎｄｉｎｇＳｕｂｇｒａｐｈＤｅｃｏｍｐｏｓｉｔｉｏｎ）,并且猜想：任意有正数条边的图都可升分解．该文证明了下面两个新结果：（１）Ｈｉ是ｉ条边的Ｋｎ的子图,当ｎ＋１≤ｉ≤２ｎ－２ｎ／３［］２－２时,Ｇ＝Ｋｎ－Ｈｉ可升分解为Ｋ１,１,Ｋ１,２,…,Ｋ１,ｎ－５,Ｋ１,ｎ－４,Ｇｎ－３（ｎ≥６）,其中Ｋ１,ｎ－４Ｇｎ－３．（２）Ｈｉ是ｉ条边的Ｋｎ的子图,当ｉ≥２ｎ－２ｎ／３［］２时,Ｇ＝Ｋｎ－Ｈｉ不一定有定理１形式的升分解．     

Gn的一种完全因子

设ｎ＝２＾λ－１＋ｔ，λ〉２，０≤ｔ〈２＾λ－１。反馈函数ｘｎ＝ｆ（ｘ０，ｘ１，…，ｘｎ－１）＝１＋ｘ０＋Σｉ∈Ｉｔ（ｘｉ＋ｘｎ－ｉ）产生ｎ阶ｄｅ Ｂｒｕｉｊｎ－Ｇｏｏｄ图Ｇｎ的一个完全因子ＰＦλ（２＾λ－１＋ｔ）其中Ｉｔ＝｛ｔ；（ｔｉ）是奇整数，１≤ｉ≤ｔ｝。     

两个完全图Kn和Kr＋2关于Kr—粘合的色等价类

设Ｇｎ是ｎ阶广义树,则Ｐ（Ｇｎ）＝λ（λ－１）＾ｒ１．．．（λ－ｍ）＾ｒｍ,其中１＋ｒ１＋．．．＋ｒｍ＝ｎ,且当ｎ〉１时,ｒｉ≥１（ｉ＝１,２,．．．ｍ）。设色等价类｛Ｇ,Ｋ｝＝｛｛ｒ１,ｋ２,ｒ２ｋ３,,ｒｍＫｍ＋１｝,｛（ｒ１－１）Ｋ,ｒ２Ｋ２,,ｒｍＫｍ｝｝。证明了,如果Ｐ（Ｇ）＝Ｐ（Ｇｎ）,则Ｇ是一棵广义树当且仅当｛Ｇ,Ｋ｝是一个完全类。在ｒｉ＝ｒｉ＋１＝２,ｒｊ＝１（ｊ≠ｉ,ｉ＋１）时     

完全三部图K（n,n,n＋k）的色性

设Ｇ为简单图,Ｐ（Ｇ,λ）为Ｇ的色多项式。若对任意简单图Ｈ满足Ｐ（Ｈ,λ）＝Ｐ（Ｇ,λ）,都有Ｈ与Ｇ同构,则称Ｇ是色唯一图,设Ｋ（ｍ,ｎ,ｒ）表示完全三部图。证明了（１）对任意非负整数ｋ,若ｎ≥ｋ＋ｋ＾２／３,则Ｋ（ｎ,ｎ,ｎ＋ｋ）是色唯;（２）若ｎ≥４,则Ｋ（ｎ,ｎ,ｎ＋４）是色唯一图。     

完全三部图K(n- k,n,n)的色性

设Ｐ（Ｇ,λ）表示简单图Ｇ的色多项式;若对任意简单图Ｈ 满足Ｐ（Ｈ,λ） ＝ Ｐ（Ｇ,λ）,都有Ｈ 与Ｇ同构,则称Ｇ是色唯一图;设Ｋ（ｍ ,ｎ,ｒ） 表示完全三部图;本文证明了：（１） 若ｎ ＞ ｋ ＋ ｋ２／３,则图Ｋ（ｎ － ｋ,ｎ,ｎ） 是色唯一的,（２） 若ｎ ≥８,则Ｋ（ｎ － ４,ｎ,ｎ） 是色唯一的;     

元素的阶除一些素数外连续的有限群

有限群Ｇ称为ＯＣ_ｎｐ－群，如果元素阶的集合πｅ（Ｇ）＝｛１，２，…，ｎ，ｐ１，ｐ２，…，ｐｓ｝．其中ｎ＋１＜ｐ１＜ｐ２＜…＜ｐｓ．ｐｉ是素数（ｉ＝１，２，…，ｓ）．ｎ为自然数．证明了ＯＣｎｐ－群的完全分类定理定理设Ｇ是ＯＣｎｐ－群，ｓ≥１，则１≤ｎ≤５或ｎ＝８，且ｓ≤２．进一步：Ⅰ．如果１≤ｎ≤２，则Ｇ是质元群且可解．Ⅱ．如果：ｎ＝３，４，５，８，则Ｇ是单群且ｎ＝３时，ｎ＝４时，ｎ＝５时，ｎ＝８时，     

强哈密尔顿的一个结果

本文中我们获得泛连通图的一个结果。设Ｇ是ｎ阶简单图，若　≥ （ｎ＋１）／２，则Ｇ是泛连通图或Ｇ＝Ｋ（ｎ－１）／２　　Ｋ（ｎ＋１）／２。此结果比１９７７年Ｊ· Ｗｉｌｌｉａｍｓｏｎ 得到的结果好。     

偶图中独立边集的1—因子扩张

Ｇ＝（Ａ，Ｂ；Ｅ）是偶图，｜Ａ｜＝｜Ｂ｜＝ｎ≥２，若ｅ，ｆ∈Ｅ，ｅ≠ｆ，有ｄ（ｅ）＋ｄ（ｆ）≥３ｎ＋ｋ（ｋ≥１），则Ｇ中所有ｋ个边的独立集Ｍ皆可扩张成Ｇ的１－因子。     

Ore－型子图对图的Hamilton性的影响

设Ｇ＝（Ｖ，Ｅ）为ｎ阶２－连通的１－坚韧图。将Ｇ的节点分类：ｇ＝｛ｖ∈Ｖ｜ｄＧ（ｖ）≥ｎ／２｝而Ｈ＝（Ｇ＼ｇ）。如果Ｈ满足Ｏｒｅ－条件：ｘ，ｙ∈Ｖ（Ｈ），（ｘ，ｙ）∈Ｅ（Ｈ）ｄＨ（ｘ）＋ｄＨ（ｙ）≥｜Ｖ（Ｈ）｜，则有：（ｉ）Ｇ是Ｈａｍｉｌｔｏｎ的；（ｉｉ）若Ｇ不是偶图，则Ｇ至多丢失长为ｎ－１的圈．     

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.     

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。     

A computer generator for randomly layered structures

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

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.     

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.     

海南岛地体及其毗邻陆缘晚中生代—新生代古地磁研究和构造演化

本文叙述了对海南岛及其毗邻大陆边缘白垩纪到第四纪地层岩石进行古地磁研究的全部工作过程。通过分析岩石中剩余磁矢量的磁偏角及磁倾角的变化,提出海南岛白垩纪以来经历的构造演化模式如下:早期伴随顺时针旋转而向南迁移,后期伴随逆时针转动并向北运移。联系该地区及邻区的地质、地球物理资料,对海南岛上述的构造地体运动提出以下认识:北部湾内早期有一拉张作用,主要是该作用使湾内地壳显著伸长减薄,形成北部湾盆地。从而导致了海南岛的早期构造运动,而海南岛后期的构造运动则主要是受南海海底扩张的影响。海南地体运动规律的阐明对于了解北部湾油气盆地的形成演化有重要的理论和实际意义。     

《Chinese Science Bulletin》SUBJECT INDEX TO VOLUME 59(2014)

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Achieving Unusual States of Matter Under High Pressure

The elongation method,originally proposed by Imamura was further developed for many years in our group.As a method towards O(N)with high efficiency and high accuracy for any dimensional systems.This treatment designed for one-dimensional(ID)polymers is now available for three-dimensional(3D)systems,but geometry optimization is now possible only for 1D-systems.As an approach toward post-Hartree-Fock,it was also extended to     

Exciton Seebeck in Molecular Systems

Various applications relevant to the exciton dynamics,such as the organic solar cell,the large-area organic light-emitting diodes and the thermoelectricity,are operating under temperature gradient.The potential abnormal behavior of the exicton dynamics driven by the temperature difference may affect the efficiency and performance of the corresponding devices.In the above situations,the exciton dynamics under temperature difference is mixed with