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1.
河南省螽斯类初步调查(直翅目)   总被引:3,自引:0,他引:3  
首次系统报道河南省螽斯类33属,57种,其中记述5个新种。即:素色杆蟋螽Phryganogrylacrisunicolor,sp.nov.;短突平背螽Isopserabrachystylata,sp.nov.;黑膝饰尾螽Cosmeturanigrogeniculata,sp.nov.;中华赢蛩螽Nipponomeconemasinica,sp.nov.;河南杉螽Thau-maspishenanensis,sp.nov.。模式标本存中国科学院上海昆虫研究所。  相似文献   

2.
记述在湖北,河南采到的螽斯二新种:尖叶素木螽Shirakisotimaacuminatasp.nov.,短裂素木螽Shirakisotimabreuifissasp.nor.模式标本保存在中国科学院上海昆虫研究及山东大学生物系。  相似文献   

3.
记述在湖北、河南采到的螽斯二新种:尖叶素木螽Shirakisotimaacumi.natasp·nov·,短裂素木螽Shirakisotimabrevifissasp.nor.模式标本保存在中国科学院上海昆虫研究所及山东大学生物系.  相似文献   

4.
论述在安徽、江西、浙江及福建采到的螽斯二新种:宽肛掩耳螽(Blimaeamegalopygmaea.sp.nov),叶肛掩耳螽(Blimaeafoliatasp.nov.).模式标本均保存在山东大学生物系  相似文献   

5.
论述在安徽、江西、浙江及辐射采到的螽斯二新种:宽肛掩耳螽(Blimaea megalopygmaea.sp.nov),叶肛掩耳螽(Blimaea foliata sp.nov).模式标本均保存在山东大学生物系。  相似文献   

6.
记述蛩螽科剑螽属昆虫一新种,即凹尾剑螽Xiphidiopsis lacusicerca sp.nov.标本采自广西环江地区。模式标本存陕西师范大学动物研究所。  相似文献   

7.
广西蚱总科五新种记述(直翅目)   总被引:14,自引:0,他引:14       下载免费PDF全文
记述广西蚱总科5新种,其中刺翼蚱科3新种.即龙州佯鳄蚱Paragavialidiumlongzhonensissp.nov.,广西刺翼蚱Scelimenaguangxiensissp.nov.及短背羊角蚱Criotettixbrachynotussp.nov.;蚱科2新种,即瘤脊蚱Tetrixtubercarinasp.nov.和广西拟后蚱Pseudepitettixguangxiensissp.nov.  相似文献   

8.
西藏网翅蝗科两新种(直翅目:蝗总科)   总被引:2,自引:0,他引:2  
记述采自西藏贡嘎地区网翅蝗科两新种,即贡嘎牧草蝗Omocestus gonggarensissp.nov。及贡嘎缺耳蝗Atympanum gonggarensis sp.nov。  相似文献   

9.
记述盘蚱科(Discotettigidae)扁角蚱属(Flatocerus)一新咱,即大青山扁角蚱(Flatocerus daqingshanensis sp.nov.).模式标本存陕西师范大学动物所标本室。  相似文献   

10.
北部湾北部地区蚱科一新种(直翅目:蚱总科)   总被引:2,自引:0,他引:2       下载免费PDF全文
记述采自北部湾北部地区的蚱科Tetrigidae一新种,即北部湾蚱Tetrixbeibuwanensissp.nov.  相似文献   

11.
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.  相似文献   

12.
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。  相似文献   

13.
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.  相似文献   

14.
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-  相似文献   

15.
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-  相似文献   

16.
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  相似文献   

17.
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  相似文献   

18.
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  相似文献   

19.
<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  相似文献   

20.
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