维普中文期刊产品整合服务
6篇 您的检索式:作者名="MENG ChunLing"
    题名 作者 年代 出处 被引量
1Dongbeititan dongi,the First Sauropod Dinosaur from the Lower Cretaceous Jehol Group of Western Liaoning Province,China显示文摘我们此处描述一条 sauropod 恐龙的头部的骨骼在西方的辽宁省的 Beipiao 区域从更低的白垩纪 Jehol 组恢复了的一根部分柱子,东北中国。它拥有的特征的一间套房,包括骆驼它的 presacral 元素,在背面的肋骨的近似结束的 pneumatocoels 的存在,和特别腿节的中间地偏斜的近似部分的晚内部的结构,决定性地建立标本的 titanosauriform 亲密关系。它在有不同于另外的 titanosauriforms 一 craniocaudally 伸长有摆平的 cranioventral 极端和一张长、光滑、稍微凸的王牌的鸟喙骨耻骨的平坦的边。它代表新税在上, Dongbeititan 盾 i 情报。et sp。nov。比较研究建议 Dongbeititan 是基础 titanosauriform,比 Euhelopus 导出,但是少些比 Gobititan 和 Jiutaisaurus 发源的更多, Fusuisaurus,和 Huanghetitan。Dongbeititan 表示第一条 sauropod 恐龙从西方的辽宁省的更低的白垩纪 Jehol 组报导了。WANG Xuri YOU Hailu MENG Qingjin GAO Chunling CHENG Xiaodong LIU Jinyuan 2007Acta Geologica Sinica(English Edition)2007,81,6:9
2On the Systematic Position of Eosipterus yangi Ji et Ji,1997 among Pterodactyloids显示文摘A comparison of the new specimen with the holotype of Eosipterus from western Liaoning Province indicates that Eosipterus is a valid genus,which belongs to the family Ctenochasmatidae.The revised diagnosis of Eosipterus includes the wing span is less than 1.25 meters,the length of the ulna is nearly equal to these of wing phalanx 2 and the tibia,humerus is longer than tibia,and the ratio of metatarsal to tibia is approximately 0.40.LU Junchang GAO Chunling MENG Qingjin LIU Jinyuan JI Qiang 2006Acta Geologica Sinica(English Edition)2006,80,5:4
3Probing particle removal in brush scrubber cleaning with fluorescence technique显示文摘Brush scrubber cleaning is widely used for post chemical mechanical polishing(CMP)cleaning in semiconductor manufacturing.In this study,an experimental system based on fluorescence technique and particle-tracking velocimetry(PTV)technique was employed to characterize the particle removal displacement and velocity in the interface between a transparent copper film and a porous polyvinyl alcohol(PVA)brush during the cleaning process.Several different cleaning conditions including rotation speeds,loading pressure and cleaning agent were examined and the particle removal rate was compared.Elastic and friction removal,hydrodynamic removal and mixed-type removal are the three types of particle removal.Particles with an arc trace and uniform velocity curves were removed by friction and elastic force which were related to the brush load.Particles with a random trace and fluctuant velocity curves were removed by hydrodynamic force which was determined by the brush rotation speed.The increase of particle removal rate(PRR)with brush rotation speed is a logistic function.It is easier to improve PRR by increasing the brush load or by adding surfactant than by increasing the brush rotation speed.HUANG YaTing LI Yang GUO Dan MENG ChunLing 2013Science China(Technological Sciences)2013,56,12:3
4New Material of Sinosauropteryx (Theropoda: Compsognathidae) from Western Liaoning, Chinae显示文摘An incomplete specimen of Sinosauropteryx prima collected from the Early Cretaceous Yixian Formation of the Dawangzhangzi area in Lingyuan, western Liaoning is depicted. It represents the first systematically described material of this feathered compsognathid outside the Sihetun area in Beipiao. This specimen shows some diagnostic features of Sinosauropteryx prima, such as the very short forelimb in relation to hindlimb with the length ratio of humerus plus radius to femur plus tibia just around 30%, and the long and massive first manual ungual subequal in length to radius. The presence of Sinosauropteryx prima only at Sihetun and Dawangzhangzi supports the suggestion that the fossil-bearing beds in the Sihetun and Dawangzhangzi areas are equivalent to each other within the Yixian Formation.JI Shu'an GAO Chunling LIU Jinyuan MENG Qingjin JI Qiang 2007Acta Geologica Sinica(English Edition)2007,81,2:1
5Effect of Purple Sweet Potato Anthocyanins on β-Amyloid-Mediated PC-12 Cells Death by Inhibition of Oxidative Stress显示文摘Junli Ye Xiangjun Meng Chunling Yan Chunbo Wang 2010Neurochemical Research2010,,3:1
6New Material of Pterosaur Sinopterus (Reptilia:Pterosauria) from the Early Cretaceous Jiufotang Formation,Western Liaoning,China显示文摘Based on a new nearly complete postcranial skeleton of an adult specimen of Sinopterus from the Early Cretaceous Jiufotang Formation of western Liaoning, China, the diagnosis of Sinopterus is amended. The revised diagnosis of Sinopterus includes skull relatively elongate with weakly developed cranial crest; ratio of the length of Ph2d4 to that of Ph1d4 is approximately 0.73; ratio of the length of wing metacarpal to that of metatarsal 3 is 4.5; ratio of the length of mt3 to that of tibia is approximately 0.21, and wing phalanges 1 and 2 are straight. Comparison between the ratios of the limb bones between non-adult and adult individuals of Sinopterus indicates that during the ontogenetic process, some ratios between bones are constant, such as the first wing phalanx to the second wing phalanx, the wing metacarpal to the metatarsal 3, metatarsal 3 to the tibia, but others are not, such as humerus to wing metacarpal and femur to tibia, in which the former grows faster than the latter.Lü Junchang LIU Jinyuan WANG Xuri GAO Chunling MENG Qingjin JI Qiang 2006Acta Geologica Sinica(English Edition)2006,80,6:1
返回顶部 每页显示:
共1页 首页 上一页 第1页 下一页 末页 /1 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费