两个序半群直积的主左理想

本文给出了两个序半群直积的主左理想Ｌ（ｓ,ｔ）等于Ｌ（ｓ）×Ｌ（ｔ）;Ｌ－类Ｌ（ｓ,ｔ）等于Ｌｓ×Ｌｔ的充要条件。     

复数域上无限维矩阵李代数的y-型李代数

在无限维矩阵李代数ｇｌ∞（Ｃ）中定义了ｙ－型李代数,且证明了ｙ－型李代数是单李代数,在ｈ－型李代数中统一了１９９６年Ｌ．Ｃｈｅｎ章中的两类李子代数ｇｌ∞（ｐ（ｔ）和ｇｌ∞（ｐ（ｔ））,并完善了ｓｌ∞（ｐ（ｔ））的构造。     

嘉陵江西河赤眼鳟的生长研究

赤眼鳟属中小型经济鱼类，在筑坝河段生长较快．体长与体重的相关关系为：Ｗ＝００１３８９８Ｌ３０６６８（ｒ＝０９３２０７）；体长和体重生长方程为：Ｌｔ＝６７２１３１［１－ｅ－０１４６４（ｔ＋０９９２５）］，Ｗｔ＝５５９０４９２［１－ｅ－０１４６４（ｔ＋０９９２５）］３０６６８；体重生长拐点ｔｒ＝６６，拐点体重为１６４４１５ｇ．讨论了地方种群间的生长差异，探讨了资源利用状况和保护措施．     

一类平稳过程的逗留极限定理

设｛Ｘ（ｔ）,－∞〈ｔ〈∞为一实可分可测平稳随机过程,Ｌｔ（ｕ）＝∫＾ｔ０Ｉ（「Ｘ（ｓ）〉ｕ」ｄｓ,ｕ,ｔ〉０,ｖ＝ｖ（ｕ）为一适当函数,当ｕ→∞时,ｖ（ｕ）→∞,研究了在一定条件下∫＾∞ｘＰ（ｖＬｔ（ｕ）〉ｙ）ｄｙ／Ｅ（ｖＬｔ（ｕ））,ｘ〉０的收敛性,且这些条件表明｛Ｘ（ｔ）｝的边附分布Ｆ∈Ｄ（Φａ）,根据上述结果,还探讨了｛Ｘ（ｔ）｝超过高移动壁的逗留极限定理。     

新安江水库太湖新银鱼Neosalanx taihuensis Chen生长特性的初步研究

对生活在新安江水库的太湖新银鱼进行了生长测算，并测定了各体长组的肥满度，结果如下：（１）体长和体重的相关关系Ｗ＝３．４３２×ｌ０￣（－６）Ｌ￣（３．０５６）（ｒ＝０．９９８），（２）体长和体重的生长方程分别为Ｌ＿ｔ＝８０［１－ｅ￣（－０．１２４（ｔ＋０．１９８）］￣3和Ｗ＿ｔ＝２．２５［１－ｅ￣（－０．１２４（ｔ＋０．１９８）］￣３；（３）拐点年龄为８．８１月龄；（４）体长增长以１～２月龄最大，体重增长以８～１０月龄最快；（５）体长５５～６０ｍｍ的鱼肥满度最大。     

用球面多项式最佳逼近阶刻画Besov空间

设Ｅｎ（ｆ）ｐ表示ｆ∷Ｌ＾ｐ的ｎ次最佳逼近,Ｅｎ（ｆ）ｐ＝ｄｉｓｔ（ｆ;ｎ,Ｌ＾ｐ）－ｉｎｆ＾ｈｎ∈ｎ｜｜ｆ－ｈｎ｜｜ｐ,Ｄ＾ｐ．ｒ表示序列型子空间,则在球面函数的Ｈｏｌｄｅｒ范数下,Ｄ＾ｐ．ｒ为Ｂａｎａｃｈ空间,且有结论：若ｆ∈Ｌ＾ｐ（１≤ｐ〈∞）以及ｒ,ｎ∈Ｎ,则有Ｅｎ（ｆ）≤ｃｏｎｓｔＫ．（ｆ,ｎ＾－ｒ,Ｌ＾ｐ,Ｄ＾ｐ．ｒ）。又用球面函数的Ｈｏｌｄｅｒ范数,定义了一类Ｂｅｓｏｖ空间,用球面最     

一类连续分布时滞模型的稳定性

运用Ｌｙａｐｕｎｏｖ泛函方法，研究一类具有连续分布时滞模型ｘ′ｉ（ｔ）＝－ｂｉｘｉ（ｔ）＋∑ｎｊ＝１ａｉｊｆｊ（μｊ∫ｔ－∞ｋｉｊ（ｔ－ｓ）ｘｊ（ｓ）ｄｓ）＋Ｆｉ（ｔ），τｉｊ∈［０，∞），ｉ，ｊ＝１，２，…，ｎ其平衡点的全局渐近稳定性，获得了一些新的充分条件．     

一类H—值扩散过程的大偏差性质

设Ｈ是实可分Ｈｉｌｂｅｒｔ空间，Ｈ＝｛Ｘ（ｔ）；ｔ≥０｝是由下列随机微分言程｛ｄＸ（ｔ）＝σ（Ｘ（ｔ））ｄＷ（ｔ）Ｘ（０）＝０ｔ≥０决定的Ｈ－值扩散过程。λ（．）：「１，＋∞）→」１，＋∞）。本文讨论了Ｃ（「０，１」，Ｈ）上概率测度族｛Ｐ．（Ｘｔ（．）／√ｔλ（ｔ））＾－１；ｔ≥１｝的大偏差性质。在一定的条件下，得到了下界及弱型上界。     

红血球补充模型的全局吸引性

研究了动物体内红血球补充模型Ｎ（ｔ） ＝ ｒ（ｔ） － Ｎ（ｔ） ＋ Ｐｅｘｐ － ∑ｎｉ＝ １γｉＮ（ｔ－ τｉ） ,ｔ≥０,其中ｒ（ｔ） ∈Ｃ（［０, ＋ ∞）,（０, ＋ ∞））,Ｐ＞ ０,γｉ,τｉ ∈（０, ＋ ∞）。获得了保证其每一正解Ｎ（ｔ）趋于一常数的若干充分条件,改进了已有结果。     

中立型线性微分—差分方程的稳定性

应用Ｌｉａｐｕｎｏｖ泛函法研究了［ｘ（ｔ）－Σｋｉ＝１Ａｉｘ（ｔ－τｉ）］′＝－Ｂ０ｘ（ｔ）－Σｋｉ＝１Ｂｉｘ（ｔ－τｉ）中立型微分－差分方程的稳定性，其中ｘ∈Ｒｎ，Ｂ０，Ａｉ，Ｂｉ（ｉ＝１，２，…，ｋ）皆为ｎ×ｎ阶实常阵，τｉ∈（０，＋∞）（ｉ＝１，２，…，ｋ）．得到了该方程平衡态稳定性的几个充分判据     

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.     

A computer generator for randomly layered structures

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

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.     

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。     

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.     

《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