小蜉属一新种：蜉蝣目：小蜉科

本文报导采自江苏宜兴的小蜉属(Ephemerella Walsh)一新种,宜兴小蜉(Ephemerella Yixingensis sp.nov.)并对新种形态特征作了详细描述。     

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     

似溪蜉属一新种记述(蜉蝣目:溪蜉科)

似溪蜉属potamanthodes各地报道不多。北美无此属,在东南亚也未见报道,1892年英国人Eaton,报道了台湾似溪蜉potamanthodes formosus新种~[1、4、5]分布在我国台湾、浙江、广东、云南等省和日本、印尼等地。1930年作者之一报道了分布在江西上饶、丰城、景钲,饶州和1934年在广西姚山等地的广西似溪蜉potamanthodes kwangsiensis新种。~(2)     

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。     

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.     

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.     

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     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the     

An affordable accurate evaluation of the binding conformations predicted by molecular docking studies in bio-system

Franck-Condon factors bridge the gap between theoretical modeling and experimental observations for molecular electronic spectroscopy and electron transfer.Under the displaced harmonic oscillator approximation,multidimensional Franck-Condon factors are decomposed into a product of many one-dimensional(1D)Franck-Condon(FC)factors,and each 1D-FC factor is associated with one Huang-Rhys factor that determines the leading contribution of     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with     

Journal of Donghua University ( English Edition) Contents of Volume 31

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