广西中北部森林溪流淡水鱼类研究

对广西7个自然保护区进行调查，发现鱼类71种，隶属于5目16科51属。7个保护区的鱼类以老第三纪原始鱼类类群后裔及南亚暖水性鱼类为主。本文比较了7个保护区鱼类的起源、分布和区系组成。     

广西保护区淡水鱼类的联系及分布

记录了广西木伦等6个保护区的鱼类72种,并应用弦距离系数比较了6保护区内水系的联系程度。6保护区的鱼类区系以老第三纪原始类群后裔种类为主,此外,还有东亚特有江河平原鱼类,南亚暖水性类群鱼类。云跺高原东部种类也有分布,除木伦保护区鱼类属东洋区南亚亚区的云贵高原鱼类外,其余的保护区属南东亚亚区华南小区。     

雅鲁藏布江中上游鱼类区系和资源状况初步调查

根据2006年～2007年4次调查结果,雅鲁藏布江中上游共分布25种鱼类.其中土著鱼类16种,由裂腹鱼亚科、条鳅亚科及鮡科3个类群组成,属典型的高原鱼类区系.高原裸鲤、兰格湖裸鲤和黄斑褶鮡为雅鲁藏布江中上游干支流新纪录种.渔获物主要是由拉萨裸裂尻鱼、双须叶须鱼、异齿裂腹鱼、拉萨裂腹鱼、巨须裂腹鱼等组成,构成鱼类产量的9...     

四川鱼类复殖吸虫的区系特点

从鱼类寄主组成，复殖吸虫种类组成和感染情况，吸虫在鱼类上感染分布特点三方面阐述了四川省鱼类寄生复殖吸虫的区系特点，并就四川与江西复殖吸虫区系，四川地质演化对区系影响及复殖吸虫对本地区渔业的影响进行了讨论和建议。     

广西北部湾鱼类区系的再研究

对北部湾鱼类区系作了再研究,共采集鉴定鱼类标本２５５种,有３９种北部湾鱼类新记录,它们隶属于１３目３０科３８属,软骨鱼类２种,占瓣记录总数的５．１％;硬骨鱼类３７种,占９４．９％,主要经济种类５种,占１２．８％;鲈形目鱼类占优势,有１４种。     

北川县通口河上游的鱼类区系和分布

于2005年7—10月对北川县境内涪江水系通口河上游进行了鱼类资源调查，共捕获标本1108尾，鉴定有21种，隶属于2目6科17属．鱼类种类较少，但区系构成复杂，特有种多，分属于6个区系复合体，从鱼类种类和数量来看，中亚高原复合体在该地区占优势地位．     

木伦自然保护区鱼类调查简报

通过调查发现木伦自然保护区有鱼类41种，分别属于4目13科34属，占龙江水系鱼类总数的38．3％．并了解了其分布、食性及丰富度.     

西充河鱼类区系组成及年度变化

报道了西充河的鱼类区系组成及特点。总结分析了河口段浅流水区鱼类的物种数及其相对个体数量的年度变化动态，以及两者间的相关关系。     

广西森林溪流淡水鱼类区系研究

通过调查发现，分布于广西森林溪流中淡水鱼类有92种，分别隶属于5目、16科、63属。鲤形目占64．1％，鲇形目占11．96％，鲈形目占20．65％，合鳃目占1．01％，Jiang形目占2．72％。其中鲤科鱼类占总种数的46．7％。可划分为热带平原、江河平原、中印山区、上第三纪、北方平原5个区系复合体。在不同的海拔高度鱼类分布不同，具有明显的山区特征，广西森林溪流淡水鱼类区系形成与广西自然环境的历史演变有密切关系。     

黑龙江胜山自然保护区鱼类区系初步研究

黑龙江胜山自然保护区是2003年由省政府批准建立的。是黑龙江省小兴安岭林区温带森林生态系统保存比较完整、典型的自然保护区，也是我国北方地区典型森林生态系统顶级群落的生态晚弱区。黑龙江胜山自然保护区水域中的鱼类区系突出的特点是以上第三纪鱼类、北方山麓鱼类、北方平原鱼类、江河平原鱼类和北极淡水鱼类等北方鱼类为主。     

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.     

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.     

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.     

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.     

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.     

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.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-