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45篇 您的检索式:作者名="Ko Frank"
    题名 作者 年代 出处 被引量
1三维编织工艺及机械的研究现状与趋势显示文摘详细介绍了三维编织工艺和三维编织机械的发展历史与现状,分析对比了三维编织工艺流程及三维编织机的结构特点和适用性,总结了三维编织技术研究的热点和亟待解决的问题,为三维编织机的设计研究提供了一定参考。李政宁 陈革 Frank Ko 2018玻璃钢/复合材料2018,,5:10
2Mitogenomic phylogeny of the Asian colobine genus Trachypithecus with special focus on Trachypithecus phayrei(Blyth, 1847) and description of a new species显示文摘Trachypithecus,which currently contains 20 species divided into four groups,is the most speciose and geographically dispersed genus among Asian colobines.Despite several morphological and molecular studies,however,its evolutionary history and phylogeography remain poorly understood.Phayre’s langur(Trachypithecus phayrei) is one of the most widespread members of the genus,but details on its actual distribution and intraspecific taxonomy are limited and controversial.Thus,to elucidate the evolutionary history of Trachypithecus and to clarify the intraspecific taxonomy and distribution of T.phayrei,we sequenced 41 mitochondrial genomes from georeferenced fecal samples and museum specimens,including two holotypes.Phylogenetic analyses revealed a robustly supported phylogeny of Trachypithecus,suggesting that the T.pileatus group branched first,followed by the T.francoisi group,and the T.cristatus and T.obscurus groups most recently.The four species groups diverged from each other 4.5-3.1 million years ago(Ma),while speciation events within these groups occurred much more recently(1.6-0.3 Ma).Within T.phayrei,we found three clades that diverged 1.0-0.9 Ma,indicating the existence of three rather than two taxa.Following the phylogenetic species concept and based on genetic,morphological,and ecological differences,we elevate the T.phayrei subspecies to species level,describe a new species from central Myanmar,and refine the distribution of the three taxa.Overall,our study highlights the importance of museum specimens and provides new insights not only into the evolutionary history of T.phayrei but the entire Trachypithecus genus as well.Christian Roos Kristofer MHelgen Roberto Portela Miguez Naw May Lay Thant Ngwe Lwin Aung Ko Lin Aung Lin Khin Mar Yi Paing Soe Zin Mar Hein Margaret Nyein Nyein Myint Tanvir Ahmed Dilip Chetry Melina Urh EGrace Veatch Neil Duncan Pepijn Kamminga Marcus AHChua Lu Yao Christian Matauschek Dirk Meyer Zhi-Jin Liu Ming Li Tilo Nadler Peng-Fei Fan Le Khac Quyet Michael Hofreiter Dietmar Zinner Frank Momberg 2020Zoological Research2020,41,6:5
3汽车用汉麻秆粉/聚乳酸复合材料的制备、成型工艺及性能显示文摘为有利于汽车轻量化和环境保护,制备了一种汽车内饰用的完全可降解的木塑复合材料。以汉麻秆粉和可降解聚乳酸(PLA)为原料,通过双螺杆挤出机造粒,模压成型制备了该复合材料。对于温度、压力和时间3个影响因素,经过4种力学性能指标的正交试验分析,得到模压成型的最优工艺为:160℃、7.5 MPa、5 min。结果表明:当汉麻秆粉质量分数30%,麻秆粉粒径40目时,该复合材料的力学性能拉伸强度、弯曲强度、拉伸模量、弯曲模量均最大,分别为40.26、73.84 MPa和2.06、4.35 GPa。王春红 王利剑 左恒峰 王妮 Noor Intan Saffinaz Anuar Peyman Servati Frank Ko 2019汽车安全与节能学报2019,10,4:4
4含缺陷三维编织复合材料拉伸性能试验显示文摘为研究缺陷对三维编织复合材料力学性能的影响,测试了两种纤维增强三维编织复合材料(一种为完全编织结构,另一种含有42%的垂纱结构)含缺陷和不含缺陷时的拉伸性能。根据ASTM D3039和D5799标准分别对无缺陷、含缺陷试验件进行准静态拉伸试验,并与层合板的拉伸性能进行对比。结果表明:无论是否含有缺陷,完全编织结构的三维编织复合材料拉伸强度均接近于含垂纱结构;相对于层合板结构,引入缺陷后,两种结构的三维编织复合材料均保留更高的拉伸强度;失效形式上,含缺陷时,两种结构均表现出裂纹沿缺陷扩展,最终样品失效;无论是否含有缺陷,不含垂纱编织结构的失效样品一般具有清晰的断裂裂纹,而含垂纱编织结构的断裂裂纹不明显。梁双强 陈革 周其洪 Frank Ko 2020材料导报2020,34,14:3
5一种新型六角形编织机器的构建与应用显示文摘文章首先简单地回顾了传统编织技术,然后阐述新型的六角形编织基本原理,并从编织运动实现原理以及编织控制方面详细讲述基于Labview计算机控制的六角形编织机器的构建方法。最后,通过举例方式展示这种六角形编织的初步应用。可以看出,这种新颖的六角形编织机器的开发,对未来利用精细化微观编织产品的新兴领域来说具有重大意义。高彦涛 Frank Ko Heejae Yang 胡红 2013纺织导报2013,,4:3
6开孔三维编织复合材料强度预测及应力分析显示文摘由缺陷引起的应力集中是复合材料结构件使用时需要考虑的工程问题。三维编织复合材料相对于传统复合材料具有优异的损伤容限性能。首先对含缺陷前后三维(3D)编织复合材料的拉伸性能进行试验研究,并通过FGM(fabric geometry model)对其他方向材料性能进行预测。然后基于Abaqus有限元对开孔后孔周边应力分布进行分析,并和Lekhnitskii理论进行了对比,同时对沿孔垂直于在载荷方向应力分布进行了观察。分别基于传统平均应力准则和点应力准则以及基于不同失效准则的渐进失效理论对含开孔三维编织复合材料强度进行预测,并与试验结果进行了对比。结果表明,点应力准则可以很好的预测3D编织复合材料含缺陷拉伸强度,而渐进失效分析可以模拟拉伸过程中的损伤起始,损伤扩展和最终破坏模式。梁双强 张成龙 陈革 周其洪 KO Frank 2020西北工业大学学报2020,38,4:3
7玻化微珠对秸秆灰/水泥复合材料导热性能的影响显示文摘通过响应面Box-Behnken实验设计,对玻化微珠增强秸秆灰/水泥复合材料的性能进行了优化研究。研究结果表明,所选模型具有显著性(P<0.05),模型优化得出的复合材料最优工艺参数为:掺入量为10%,粒径为600μm。在最优工艺下,玻化微珠增强秸秆灰/水泥基复合材料的导热系数为0.2919 W/(m·K),相比未优化处理的,导热系数降低了36%。王春红 鲍鑫 支中祥 KO Frank ZAKARIA Sarani 左恒峰 贾立霞 高晓平 2020混凝土与水泥制品2020,,7:2
8Net-shape knitting for complex composite performs 显示文摘Van Vuure Aart W Ko Frank K Beevers Claire 2003Textile Research Journal2003,73,1:1
9Analysis of multiaxial warp-knit performs for composite reinforcement 显示文摘Du Guang-wu Ko Frank 1996Composites Science and Technology1996,56,:1
10Electromagnetic properties of electrospun Fe304/carbon composite nanofibers 显示文摘Masoumeh Bayat Heejae Yang Frank Ko 2011Polymer2011,,52:1
11Melt-electrospinning part i:processing parameters and geometric properties 显示文摘Jason Lyons Christopher Li Frank Ko 2004Polymer2004,45,22:1
12Bending properties of multiaxial warp knitted fabrics显示文摘Ko Frank Hu Jin-lian Jiang Ya-ming 1998Textile Asia1998,29,2:1
13Melt electrospinning of polymers:a review显示文摘LYONS Jason KO Frank 2005Polymer News2005,,30:1
14Electrostatic fabrication of ultrafine conducting fibers: polyaniline/polyethylene oxide blends显示文摘Ian D Norris Manal M Shaker Frank K Ko Alan G MacDiarmid 2000Synthetic Metals2000,,2:1
15Unit cell Geometry of 3-D Braided Structures 显示文摘Du Guangwu Frank K Ko 1993Journal of reinforced plastic and composites1993,12,7:1
16Regeneration of Bombyx mori silk by electrospinning. Part 3: characterization of electrospun nonwoven mat显示文摘Jonathan Ayutsede Milind Gandhi Sachiko Sukigara Michael Micklus Hung-En Chen Frank Ko 2004Polymer2004,,5:1
17Fiber-based tissue-engineered scaffold for ligament replacement: design considerations and in vitro evaluation显示文摘James A. Cooper Helen H. Lu Frank K. Ko Joseph W. Freeman Cato T. Laurencin 2004Biomaterials2004,,13:1
18Anterior cruciate ligament regeneration using braided biodegradable scaffolds: in vitro optimization studies显示文摘Helen H. Lu James A. Cooper Sharron Manuel Joseph W. Freeman Mohammed A. Attawia Frank K. Ko Cato T. Laurencin 2004Biomaterials2004,,23:1
19Analysis of multiaxial warp- knit performs for composite reinforcement 显示文摘DU Guangwu KO Frank 1996Composites Science and Technology1996,56,3:1
20Application of nanofiber technology to nonwoven thermal insulation显示文摘GIBSON Phillip W LEE Calvin KO Frank 2007Journal of Engineered Fabrics & Fibers (JEFF)2007,2,2:1
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