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1.
广西北部环江地区蚱总科三新种(直翅目)   总被引:1,自引:0,他引:1  
记述了广西蚱总科三新种,即枝背蚱科的桂北拟后蚱Pseudepitettixguibaiensissp.nov.,短翼蚱科的环江波蚱Bolivaritetixhuanjiangensissp.nov.瘤脊波蚱Bolivaritettixtuberica-rinasp.nov.  相似文献   

2.
记述了来自浙江、福建、安徽及广西等地区刺翼蚱科—新属三新种,即佯鳄蚱属,新属Paragavialidiumgen.nov,弯刺佯鳄蚱,新种P.curvispinumsp.nov,三齿佯鳄蚱,新种P.tridentatumsp.nov及直刺佯鳄蚱,新种P.orthacanumsp.nov.  相似文献   

3.
广西东北部地区蚱科二新种记述:直翅目:蚱总科   总被引:6,自引:0,他引:6  
记述在广西东北部兴安县猫儿山地区蚱科二新种,即白边尖顶蚱Teredorus albimarginus sp.nov。及广西微翅蚱Alulatettix guangxiensis sp.nov。  相似文献   

4.
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   

5.
广西蚱科二新种记述(直翅目:蚱总科)   总被引:4,自引:0,他引:4       下载免费PDF全文
郑哲民  陆温  黎天山 《广西科学》2000,7(4):313-315
记述蚱科(Tetrigidae)2个新种,即白背突眼蚱(Ergatettix leuconotus sp.nov.),桂北蚱(Tetrix guibeiensis sp.nov.)。  相似文献   

6.
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   

7.
西双版纳地区蚱总科新种记述   总被引:2,自引:0,他引:2  
记述了西双版纳地区蚱总科三新种,即版纳羊角蚱Criotettix bannaensis sp.nov.,白须庭蚱Hedotettix albipalpulus sp.nov.及云南真长背蚱Euparatettix yunnanensis sp.nov..此外还记述瘤背蚱Tetrix torulosinotao Zheng新发现的雄性,毛股蚱Tetrix barbifemora Zheng新发现的雌  相似文献   

8.
我国蚱属(Tetrix Latreille)二新种(直翅目:蚱科)   总被引:2,自引:0,他引:2  
记述采自内蒙古的多伦蚱Tetrix duolunensis sp.nov.及采自西安的西安蚱Tetrix xianensis sp.nov.二新种,且额蚱Tetrix eyouqiensis Liang雄性首次描述。模式标本保存于陕西师范大学动物研究所。  相似文献   

9.
广西北部环江地区蚱总科的调查(直翅目)   总被引:15,自引:0,他引:15       下载免费PDF全文
记载广西北部环江地区蚱总科昆虫14种,分别属于3科9属,其中有9种为广西新纪录,并有4个新种,即环江玛蚱Mazarrediahuanjiangensissp.n.,桂北波蚱Bolivaritettixguibeiensissp,.n,广西蟾蚱Hyboellaguangxiensissp.n.及环江柯蚱Cptotettixhuanjiangensissp.n.  相似文献   

10.
广西悠背蚱属二新种记述(直翅目:蚱科)   总被引:5,自引:0,他引:5       下载免费PDF全文
黎天山  郑哲民  陆温 《广西科学》2000,7(4):316-318
记述蚱科(Tetrigidae)悠背蚱属(Euparatettix Hancock)的2个新种,即白条悠背蚱(Euparatettix leuconotus sp.nov.),条斑悠背蚱(Euparatettix strimaculatus sp.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.
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.  相似文献   

13.
王慧 《科技信息》2008,(10):240-240
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.  相似文献   

14.
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.  相似文献   

15.
何延凌 《科技信息》2008,(4):258-258
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.  相似文献   

16.
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.  相似文献   

17.
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.  相似文献   

18.
AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…  相似文献   

19.
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   

20.
Quality traits in wheat (Triticum aestirum L.) were studied by quantitative trait locus (QTL) analysis in a recombinant inbred line (RIL) population, a set of 131 lines derived from Chuan 35050 × Shannong 483 cross (ChSh). Grains from RILs were assayed for 21 quality traits related to protein and starch. A total of 35 putative QTLs for 19 traits with a single QTL explaining 7.99-40.52% of phenotypic variations were detected on 10 chromosomes, 1D, 2A, 2D, 3B, 3D, 5A, 6A, 6B, 6D, and 7B. The additive effects of 30 QTLs were positive, contributed by Chuan 35050, the remaining 5 QTLs were negative with the additive effect contributed by Shannong 483. For protein traits, 15 QTLs were obtained and most of them were located on chromosomes 1 D, 3B and 6D, while 20 QTLs for starch traits were detected and most of them were located on chromosomes 3D, 6B and 7B. Only 7 QTLs for protein and starch traits were co-located in three regions on chromosomes 1D, 2A and 2D. These protein and starch trait QTLs showed a distinct distribution pattern in certain regions and chromosomes. Twenty-two QTLs were clustered in 6 regions of 5 chromosomes. Two QTL clusters for protein traits were located on chromosomes 1D and 3B, respectively, three clusters for starch traits on chromosomes 3D, 6B and 7B, and one cluster including protein and starch traits on chromosome 1D.  相似文献   

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