一个新的Lie代数及其应用

对已知Lie代数An.1推广得到一类新的Lie代数，由其相应的Loop代数及屠格式，获得一类新的可积Hamilton方程族。建立一个5维的loop代数，由可积耦合定义，得到所求方程族的一类扩展可积模型。     

二次型等式及其多分量可积族的Hamilton结构

构造了一个新的Lie代数G,通过选取恰当的基元阶数得到相应的一个loop代数M,其换位运算非常简便,由此设计一个等谱问题,利用屠格式得到一个新的Liouville可积的多分量Hamilton方程族,并利用二次型等式获得方程族的Hamiltonian结构.此种方法可以广泛使用,获得其他方程族的Hamiltonian结构.     

关于Toda lattice方程族的非线性离散可积耦合

本文利用半单Lie代数和可解Lie代数的半直和得到了Toda lattice方程族的一个非线性离散的可积耦合,并借助变分恒等式得到了其方程族的Hamilton结构。     

一类新的圈代数和它的Liouville可积演化方程族

基于Lie代数Aa-1的推广,构造了一类新的圈代数,并设计了一个新的谱问题。然后,利用屠格式获得了一个新的可职系统,并推导出它相应的非线性演化方程族,最后,证明了该演化方程族在Liouville意义下是可积的。     

多分量loop代数及其应用

利用Lie代数A1 的两个子代数间的换位关系,通过线性同构映射,构造了两个相应的多分量Lie代数.根据Lie代数的分次,它们的loop代数的构造方法有多种.本文构造了其中的一类loop代数.作为第一个loop代数应用,得到了AKNS方程族的扩展可积模型.对于第二个loop代数的应用,我们将另文讨论.本文提供的方法可以普遍地应用.     

一个新的可积方程族

利用文献[1]中的一个6雏Lie代数及其loop代数，构造了一个等谱Lax对，由其相容性条件导出了含任意参数的Lax可积意义下的孤子方程族，其约化情形即为广义的耦合KdV方程族。构造该方程族的目的有两个：一是得到了新的可积系，这是孤立子理论的研究课题之一；二是由该方程族可寻求其Hamilton结构，Darboux变换，对称，代数一几何解等系列相关性质。     

高阶椭圆方程的Lie对称及不变解

对2维高阶线性椭圆方程进行了Lie对称分析.给出该方程拥有的无穷维Lie代数及其核心7维子Lie代数的1阶优化系统;构造了该椭圆方程对应优化系统的约化及不变精确解.最后给出了Lie代数在该方程初边值问题求解上的应用.     

一类NLS-MKDV可积方程族及其可积耦合

由loop代数的一个子代数出发,建立一个新的等谱问题,利用屠格式导出了一类可积方程族,可约化为NLS-MKDV方程族.再利用迹恒等式建立其Hamilton结构,再进一步求出可积耦合系统.     

有限维Lie代数Killing型算法及其在偏微分方程对称性质判定中的应用

给出有限维Lie代数Killing型的计算方法和机械化实现,本算法适合于任意有限维Lie代数,适用于非线性偏微分方程对称性的判断和应用.以此算法为基础,给出了1+2维标准双曲和抛物方程拥有Lie代数性质的判定,得到该两个经典方程的Lie代数结构及相关性质.给出了1+2维抛物方程Lie代数的优化系统,为从代数角度研究偏微分方程问题提供了可借鉴的结果.     

Loop代数_2的一个子代数与一族新的可积双Hamilton结构

利用建立的Loop代数A2的一个子代数,设计了一个新的等谱问题;然后利用屠格式获得一族新的Liouville可积的双Hamilton结构.作为约化情形,得到了广义非线性Schrodinger方程.     

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.     

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.     

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.     

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.     

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.     

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.     

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。     

Quantitative trait loci （QTLs） for quality traits related to protein and starch in wheat

Quality traits in wheat （Triticum aestirum L.） were studied by quantitative trait locus （QTL） analysis in a recombinant inbred line （RIL） population, a set of 131 lines derived from Chuan 35050 × Shannong 483 cross （ChSh）. Grains from RILs were assayed for 21 quality traits related to protein and starch. A total of 35 putative QTLs for 19 traits with a single QTL explaining 7.99-40.52% of phenotypic variations were detected on 10 chromosomes, 1D, 2A, 2D, 3B, 3D, 5A, 6A, 6B, 6D, and 7B. The additive effects of 30 QTLs were positive, contributed by Chuan 35050, the remaining 5 QTLs were negative with the additive effect contributed by Shannong 483. For protein traits, 15 QTLs were obtained and most of them were located on chromosomes 1 D, 3B and 6D, while 20 QTLs for starch traits were detected and most of them were located on chromosomes 3D, 6B and 7B. Only 7 QTLs for protein and starch traits were co-located in three regions on chromosomes 1D, 2A and 2D. These protein and starch trait QTLs showed a distinct distribution pattern in certain regions and chromosomes. Twenty-two QTLs were clustered in 6 regions of 5 chromosomes. Two QTL clusters for protein traits were located on chromosomes 1D and 3B, respectively, three clusters for starch traits on chromosomes 3D, 6B and 7B, and one cluster including protein and starch traits on chromosome 1D.     

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.