亚洲Chiloscyphus-Heteroscyphus-Lophocolea类群的系统分类研究进展

裂萼苔属Chiloscyphus,异萼苔属Heteroscyphus及齿萼苔属Lophocolea是地萼苔科（Geocaly-caceae）中亲缘关系非常接近的三个属,由于植物体特征变化极大,且缺乏足够的分类修订研究,长期以来它们的系统分类地位和属间关系存有很大争议,属及某些种的概念和界线极其模糊.亚洲为该类群的分布中心之一,目前对该类群的分类学研究也不够深入全面.故拟通过文献考证法、经典分类学方法并结合形态特征和数量分类,必要时利用分子系统学的方法对这一类群进行一次较为详尽的分类修订.     

河南槭属(Acer Linn.)增补与订正

本文增补了《河南植物志》中未记录的槭属植物4种3变种,订正了1种1亚种的学名.     

强背景噪声下声信号的测量

针对工业现场强环境噪声下测量汽车驱动桥噪声的工程问题,提出一种多次修正和滤波技术相结合的方法降低环境噪声的影响,以满足汽车驱动桥噪声测量的要求     

A revision of the Caridina gracilirostris De Man, 1892, species group,with descriptions of two new taxa (Decapoda; Caridea; Atyidae)

Re‐examination of the syntypes of Caridina gracilirostris De Man, 1892 De Man, J. G. 1892. “Decapoden des Indischen Archipels.”. In Zoologische Ergebnisse einer Reise in Niederlandisch Ost‐Indien Edited by: Weber, M. Vol. 2, 265–527. Plates 15–29 [Google Scholar], shows that the type series is composed of three species. These three species are similar in the form of the rostrum, but can be differentiated easily by a combination of rostral formula and sexual appendages. To stabilize the taxonomic status of these species, a lectotype for C. gracilirostris is selected. A lectotype for Caridina appendiculata Jalihal and Shenoy, 1998 Jalihal, D. R. and Shenoy, S. 1998. “Taxonomic revision of some Indian prawn species of genus Caridina H. Milne Edward, 1837 (Atyidae).”. In Proceedings and abstracts of the Fourth International Crustacean Congress, 128–129. Amsterdam, , Netherlands: The Crustacean Socrety.  [Google Scholar], is also designated from among the remaining syntypes of C. gracilirostris. A new species, C. neglecta, is described. Caridina gracilirostris and C. gracilima Lanchester, 1901 Lanchester, W. F. 1901. On the Crustacea collected during the “Skeat” expedition to the Malay Peninsula.. Proceedings of the Zoological Society of London, 1900([1901]): 533–574.  [Google Scholar], are redescribed and figured, and C. appendiculata is transferred to the C. nilotica species group. A new species group is also recognized for C. gracilirostris, C. neglecta, C. gracilima, and a new species, C. longifrons. The C. gracilirostris species group is defined here as taxa possessing a rostrum with subapical teeth, fewer than 10 dorsal teeth, and without any postorbital teeth.     

A revision of the genus Qianleptoneta (Araneae: Leptonetidae)

Southwest China is one of three famous karst areas of the world but research on cave spiders of the area is sparse. A Chinese endemic midget spider genus and species, Qianleptoneta quinquespinata (Leptonetidae) was erected by Chen and Zhu, 2008 Chen, HM and Zhu, MS. 2008. One new genus and species of troglobite spiders (Araneae, Leptonetidae) from Guizhou, China. J Dali Univ., 7(12): 11–14.  [Google Scholar]. Here, based on numerous materials collected from Guizhou Province, the mainly karst area of southwest China, Qianleptoneta is revised. Ten new species are described and illustrated: Q. triangula, Q. nuda, Q. identica, Q. lycotropa, Q. multiseta, Q. lophacantha, Q. robustispina, Q. palmata, Q. sublunata and Q. megaloda. The natural history of each species is presented.     

薇甘菊学名订正及其近缘种的检索

对我国薇甘菊属（菊科）的原产种、外来种进行修订研究,并与近缘种比较确定外来种应为Mikania micrantha H.B.K;结果对进一步研究该种的危害性和防治有重要意义。     

GPS定位误差中对流层延迟的分析

系统地分析了对流层延迟特性在GPS导航中造成的定位误差。基于霍普菲尔德模型和萨斯塔莫宁模型,提出了一种在缺少实测气象参数条件下使用的简易对流层延迟修正模型,并利用Matlab仿真软件对静态和动态的接收机实测数据进行了分析。实验结果表明,简易修正模型可以消除70%左右的对流层影响,有效地提高了GPS的定位精度。     

Negotiation Model for Shopping Agents in E-marketplace

Introduction WiththeincreasingspreadoftheInternetand WWW,moreandmorecommercialtransactionsar takingplaceontheInternetelectronically.Electroni marketplacesarebecomingmoreimportantsincethey promisetogreatlyimproveeconomicefficiency,reducsalescosts,andspeedupcomplicatedbusines transactions.Topromotethedevelopmentofelectroni marketmanyautomationmechanismsandtechnologie havebeenintroducedcurrently,amongwhichagen technologyistakingthedominantroles,whichthanksto theirmainfeatures—autonomy,pro ac…     

浅谈《中国图书馆分类法》（五版）计算机应用软件（TP317）类的修订

介绍了《中国图书馆分类法》（五版）计算机应用软件（TP317）类的修订情况,分析了计算机应用软件（TP317）类设置中存在的不足,结合分类标引工作的实践,探讨了改进计算机应用软件（TP317）类设置的具体措施。