临夏盆地晚新生代哺乳动物群

临夏盆地位于甘肃省东南部，是青藏高原东北缘的一个山前凹陷盆地。其晚新生代地层非常发育，蕴藏着丰富的哺乳动物化石。中国科学院古脊椎动物与古人类研究所已在临夏盆地从晚渐新世至早更新世的各个层位中，发现和征集了大量的哺乳动物化石，其中以距今１５００～１２００万年的中中新世铲齿象动物群、１０００～７００万年的晚中新世三趾马动物群和约２００万年的早更新世真马动物群的材料和种类最为丰富。已有的化石标本产自近５０个化石地点，约１７００多件哺乳动物头骨，以及大量牙齿和肢骨，代表了１００多种哺乳动物；另有陆龟化石…     

甘肃景泰地区早石炭世小个体动物群

在甘肃景泰地区典型剖面(红水堡和黑山剖面)早石炭世地层中，发现由珊瑚、腕足类、苔藓虫和海百合茎组成的小个体动物群，其中各门类化石个体普遍较小，通常只能用毫米级尺度来度量．经研究发现这一动物群既非灾害性死亡群体，也非水流分选堆积物，而是由于其生存环境异于寻常导致生长停滞所形成的特殊动物群．“巴彦浩特地区石炭纪生态地层学研究”项目的研究结果提供了沉积环境信息，丰富了找矿资料，对找矿实践具有一定意义．     

十大濒于绝种的世界珍稀生物

第一位:黑犀牛亦称“非洲犀”,属哺乳纲。分布于非洲,北自索马里、埃塞俄比亚,南至南非。第二位:大熊猫属哺乳纲,食肉目,猫熊科。仅产于四川西部和北部、甘肃南部、西藏东部及陕西西南部。     

和政动物群见证青藏高原的隆起

和政动物群是指我国甘肃省和政地区发现的新生代古生物化石所代表的动物群。和政县位于兰州市南偏西约100千米处,行政上属于甘肃省临夏回族自治州。在地质学和古生物学上常常把发现在同一地方、同一时代的各种古生物化石组合统称为一个动物群,并经常以发现地或其代表动物命名。比如,著名的热河动物群就是发现于辽宁西部及华北地区白垩纪早期的一个古动物群,其中包括中华龙鸟等带羽毛的恐龙、孔子鸟等中生代鸟类以及哺乳动物和两栖动物等。后来,科学家在该地区的相同地层中还发现了大量植物化石,包括被人们称为第一朵花的"辽宁古果"等被子植物化石,于是科学家将热河动物群更名为热河生物群,即包括动物群和植物群的生物群。另外,三叠纪晚期的关岭生物群和中新世的山旺动物群等也是如此命名的。     

广东乐昌第四纪大熊猫--剑齿象动物群

广东乐昌第四纪大熊猫-剑齿象动物群计有5目15属16种,主要属种有大熊猫洞穴亚种、东方剑齿象、中国犀、中国黑熊、水鹿和水牛等,这些都是南方大熊猫-剑齿象动物群的典型分子,与曲江马坝动物群、封开黄岩洞动物群比较接近,时代为中更新世末期或晚更新世早期.动物群反映的当时的生态环境除了森林比较茂密外,水草也比较丰富,气候温凉而不很干燥.该动物群是广东粤北地区继曲江马坝动物群、罗坑动物群以及灵溪暗岩动物群之后又一重要发现,对研究华南地区第四纪动物群的分布、变迁以及当时的古气候和古环境等具有一定意义.     

开目公司当选省优秀软件企业

日前，在由湖北省软件行业协会举办的“2005年度湖北省优秀软件企业、优秀软件产品评比活动”中，开目公司经专家委员会的初审评议，被列为“湖北省优秀软件企业”．同时，公司申报的软件产品——开目CAPP也被评为“湖北省优秀软件产品”．     

2004年度优秀软件产品揭晓开目公司两软件榜上有名

日前，在中国软件行业协会举办的“2004年度推荐优秀软件产品活动”中，开目公司申报的软件产品——开目CAPP和开目PDM经过专家委员会的终审评议，被评为“2004年度优秀软件产品”．     

青海省野生动物实验动物化研究进展

青海省地处青藏高原，平均海拔3000米以上，具有高寒缺氧，年平均气温低，干燥等特点．其幅原辽阔，野生动物资源丰富，由于所处的地理位置和严酷的自然条件而形成了许多特有的自然动物群，可开发的野生实验动物资源有免形目中高原鼠兔，柴达木灰尾免；啮齿目中的喜马拉雅旱獭，三趾跳鼠，中华酚鼠；食肉目中的藏英等，都是理想的实验动物化研究对家其中高原鼠兔和喜马拉雅旱獭作为新发掘的实验动物已引起国内外关注。我省科研工作者自八十年代就对野生高原鼠兔，喜玛拉雅旱獭进行饲养，驯化、繁殖以及生物学特性研究，近年来对藏英这一中国…     

我国实验动物种质资源的保护与利用现状

用于生命科学研究的实验动物种类有很多种,包括两栖纲、鸟纲和哺乳纲等,其中以哺乳纲中的啮齿目、兔形目、食肉目、偶蹄目和灵长目为主.我国地域辽阔,动物种类繁多,为了科学地保护和利用我国实验动物特种资源,进一步开发实验动物遗传资源,我们对全国实验动物特种资源进行了调查,并结合有关文献,对我国主要实验动物资源情况进行概述.     

人类的大敌——老鼠

鼠类属于哺乳纲啮齿目,是哺乳动物中种类和数量最多、适应性最强、分布最广的一个类群.据七十年代国际的记录,全世界有啮齿动物1685种,为哺乳纲种数的五分之二.我国约有150种,除了人们熟悉的家鼠、田栖鼠和松鼠以外,还有能够在林中滑翔的鼯鼠、生活在草原的跳鼠、生活在地下     

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.     

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.     

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.     

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.     

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

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