四川省厕蝇属二新种（双翅目：厕蝇科）

记述采自中国四川地区厕蝇科厕蝇属FanniaR.-D,1830二新种,分别命名为象鼻厕蝇Fannia elephantocerca sp.nov.和雅安厕蝇Fannia yaanensis sp.nov..模式标本保存于沈阳师范学院昆虫研究所。     

中国四川厕蝇属三新种(双翅目：厕蝇科)

记述采自中国四川地区厕蝇科厕蝇属FanniaR．-D．,1830三新种;分别命名为类多突厕蝇Fanniapolystylodessp．nov．,毛颜厕蝇Fanniafacisetosasp．nov．和华西厕蝇fanniahuaxiiasp．nov．．模式标本保存于沈阳师范学院昆虫研究所．     

中国四川面厕蝇属三新种

记述采自中国四川地区厕蝇科厕蝇属Ｆａｎｎｉａ Ｒ．－Ｄ，１８３０三新种；分别命名为类多突厕蝇Ｆａｎｎｉａ ｐｏｌｙｓｔｙｌｏｄｅｓ ｓｐ．ｎｏｖ．，毛颜厕蝇Ｆａｎｎｉａ ｆａｃｉｓｅｔｏｓａ ｓｐ．ｎｏｖ．和华西厕蝇ｆａｎｎｉａ ｈｕａｘｉｉａ ｓｐ．ｎｏｖ．．模式标本保存于沈阳师范学院昆虫研究所。     

弯叶厕蝇触角感受器的超微结构观察

应用扫描电镜对弯叶厕蝇(Fannia curvostylata)成虫触角的外部形态结构及其感受器进行了观察和研究。研究结果表明,弯叶厕蝇(Fannia curvostylata)成虫触角上共存在着2大类感受器:毛形感受器(sensilla trichodea,Str)和锥形感受器(Sensilla basiconica,SB),2种感受器又根据其形态和表面特征分为不同种类,其中毛形感受器(sensilla trichodea,Str)种类较多,分为4种,锥形感受器(Sensilla basiconica,SB)分为3种。通过对各种感受器的形态特点进行描述,发现毛形感受器(sensilla trichodea,Str)数量较多且密,锥形感受器(Sensilla basiconica,SB)数量较少且稀疏;从感受器的分布部位来看,只有毛形感受器Ⅰ(sensilla trichodea,Str1)和锥形感受器Ⅰ(Sensilla basiconica,SB1)分布于触角第二节,其他种类感受器分布于触角第三节。弯叶厕蝇(Fannia curvostylata)成虫触角感受器和已知的有瓣蝇类(Calyptratae)触角感受器相比,在类型、数量和分布部位上都有很大差别。     

四川省厕蝇属昆虫物种多样性问题研究

从种数、特有物种和区系成分等角度分析了四川省厕蝇科昆虫的物种多样性。经统计,四川省已知厕蝇科昆虫1属41种。无论是在属级水平还是在种级水平,该科中厕蝇属均占有较大优势,记录特有种18种,占四川省厕蝇种数的43.90%,结果表明,四川省厕蝇科昆虫以特有种和东洋界和东洋界+古北界组合成分为主。     

中国厕蝇属Fannia R.-D.四新纪录种(双翅目:厕蝇科)

整理核查中国的厕蝇科Fanniidae标本中,发现四种系中国首次记录,分别为:宽厕蝇Fannia.ampla Nishida,1974;折叶厕蝇Fannia.limbata(Tiensau,1938);似明厕蝇Fannia.peneserena Nishida,1972;挪威厕蝇Fannia.norvegica Ringdahl,1934。给出了这4个种的原始出处、引证情况、国外分布情况,对其形态特征进行了描述,并绘制尾器图以供鉴别。     

厕蝇与蝇蛆症

在系统查阅国内外相关文献的基础上,总结出厕蝇科昆虫作为病原所致的世界范围内蝇蛆症的概况。包括蝇蛆症的概念、类型及国内外研究概况、厕蝇科分类地位、生物学特征、致病种类。综合厕蝇所致蝇蛆病例17例,包括国内14例,国外3例。从寄生部位来看,该类昆虫主要引起泌尿生殖道,消化道蝇蛆症。其寄生类型均为偶然性寄生。     

厕蝇与蝇蛆症

在系统查阅国内外相关文献的基础上,总结出厕蝇科昆虫作为病原所致的世界范围内蝇蛆症的概况。包括蝇蛆症的概念、类型及国内外研究概况、厕蝇科分类地位、生物学特征、致病种类。综合厕蝇所致蝇蛆病例17例,包括国内14例,国外3例。从寄生部位来看,该类昆虫主要引起泌尿生殖道,消化道蝇蛆症。其寄生类型均为偶然性寄生。     

中国夏厕蝇种团canicularis-group生物地理学初探

本文通过对中国已知夏厕蝇种团canicularis-group14种的分布格局进行分析,发现该类昆虫为世界性分布,主要分布于全北界,并存在五种比较明显的分布型,即世界广布型、全北分布型、欧亚分布型、亚洲分布型和中国分布型。研究表明,中国夏厕蝇种团canicularis-group存在一定的分布特征。     

厕蝇科昆虫起源、演化及世界分布格局的探究

基于形态学、分子系统学、系统发育等研究成果,分析厕蝇科可能出现的地质历史年代;讨论了厕蝇科地理演化的研究历史及现状。以地理分布、形态特征及地质历史相结合,提出了该科部分类群的演化模式。分别统计了现今全世界各大动物地理界厕蝇科已知种数、特有种数、比例,并简析其分布格局及成因;并对亚洲地区厕蝇物种的多样性、特有性特点,结合其地质历史变迁,进行了分析探讨。     

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.     

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-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that