锯形蜉属一新种记述：蜉蝣目：小蜉科

详细描述了锯形蜉属一新种 －膨铗锯形蜉成虫的形态特征，并与本属其他种进行了比较。     

小蜉属小蜉亚属二新种(蜉蝣目:小蜉科)

本文描述了采自吉林省抚松县的二种蜉蝣标本,发现它们为小蜉属小蜉亚属二新种。     

等蜉属(Isonychia)等蜉亚属(Isonychia sensu stricto)两新种(蜉蝣目:等蜉科)

本文报导等蜉属(Isonychia,Eaton)等蜉亚属(Isonychia s.s.)两新种,贵溪等蜉(Isonychia guxiensis sp.nov.)和中华等蜉(Isonychia sinensis sp.nov.).并对新种形态特征作了详细描述。     

福建溪颏蜉属Rhithrogena二新种记述(蜉蝣目,扁蜉科)

1980～1982年,我们在福建省进行了为期三年的采集工作,获得了大量标本。其中属于溪頦蜉属的有二新种,即三港溪颏蜉和东方溪颏蜉,并对成虫标本作了鉴定。     

扁四节蜉属(Platybaetis)——中国蜉蝣目四节蜉科-新记录属记述

本文记述了中国蜉蝣目四节蜉科(Baetidae)-新记录属,扁四节蜉属(Platybaetis).该属主要分布于尼泊尔、菲律宾、马来西亚、印度尼西亚及澳大利亚北部.扁四节蜉属稚虫的主要特征为身体扁平.头近四边形,头长稍短于头宽.触角粗短.上唇很小,上唇宽约为长的两倍;下唇的中唇舌端部具有2根棒状的粗鬃.前胸背板后侧角圆形,背板宽度与头宽相当.后翅芽退化或缺如.中尾丝短,只有1-7节.本文还详细描述了毕氏扁四节蜉(Platybaetis bishopi Muller-Liebenau)稚虫的形态特征.该种原分布于马来西亚,现于我国香港和广东省南昆山自然保护区采获.     

伊蜉属Genus Eatonigenia在中国的首次发现(蜉蝣目 蜉蝣科)

本文描述了采自海南岛的蜉蝣目中国新纪录属伊蜉属Eatonigeni一种:查氏伊蜉E·chaperi。     

海南省蜉蝣目研究

首次报导南省蜉蝣目昆虫共１９种。其中，刺翅蜉属Ｃｅｎｔｒｏｐｉｔｌｕｍ、似宽基蜉属Ｃｈｏｒｏｔｅｒｐｉｄｅｓ、印度蜉属Ｉｎｄｉａｌｉｓ和思罗蜉属Ｔｈｈｒａｕｌｕｓ等４属为我国新记录属；海南四节蜉Ｂａｅｔｉｓ ｈａｉｎａｎｅｎｓｉｓ ｓｐ．ｎｏｖ．、中国刺翅蜉Ｃｅｎｔｒｏｐｉｔｕｍ ｃｈｉｎｅｎｓｉｓ ｓｐ．ｎｏｖ．、小扁蜉Ｈｅｐｔａｇｅｎｉａ ｍｉｎｏｒ ｓｐ．ｎｏｖ．、海南似动蜉Ｃｉｎｙｇｍｉｎ     

似动蜉属(Cinygmina)两新种和属的特征(蜉蝣目:扁蚴蜉科)

动蜉属(Cinygma)分布在全北区和东洋区,北美,苏联和日本均有报道;微动蜉属(Cinygmula)仅全北区、北美、苏联曾有记载;惟似动蜉属(Cinygmina)仅于1937年英国人D.E.Kimmins在印度阿萨姆(Assam)的卡西山(Khasi Hills)采得的标本定为新属新种—阿萨姆似动蜉(Cinygmina assamensis)外,直到现在未见有其他种类报道过。作者于     

小蜉属两新种的记述(蜉蝣目:小蜉科)

小蜉属种类多,分布广,全世界目前已知有14个亚属、100多种,但在我国迄今仅知有四个种。1979年5月清晨6时左右,作者在浙江西天目山下的西天目山旅馆墙壁上,采得雄性标本2头,经鉴定分别为小蜉属的两个新种。     

宜兴似动蜉属(Cinygmina)三种稚虫记述

似动蜉属在我国到目前为止仅发现三种,成虫已报导,但其稚虫尚未发表。1985年6月作者又一次赴宜兴山区进行了调查,经采集、饲养和羽化,弄清了这三种稚虫的清况。共采到红斑似动蜉Cinygmina rubromaculata You et al。稚虫217条、斜纹似动蜉Cinygmi-     

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)

正~~