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制备工艺对熔喷非织造布基平面网结构的影响 被引量:3
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作者 金关秀 祝成炎 《纺织导报》 CAS 2018年第1期67-70,共4页
为探讨制备工艺参数对熔喷非织造布纤网结构的影响,按计量泵频率、网帘频率和接收距离的不同组合制备了13种聚丙烯熔喷非织造布,借助基平面网对纤网细观结构进行表征以简化研究。结果表明:随着计量泵频率的提高,纤维直径及其变异系数均... 为探讨制备工艺参数对熔喷非织造布纤网结构的影响,按计量泵频率、网帘频率和接收距离的不同组合制备了13种聚丙烯熔喷非织造布,借助基平面网对纤网细观结构进行表征以简化研究。结果表明:随着计量泵频率的提高,纤维直径及其变异系数均增大,基平面网特征长度和层数均下降;随着网帘频率的提高,基平面网特征长度和层数均下降,同时取向度提高;随着接收距离的增大,纤维直径及其变异系数均增大,基平面网的特征长度减小但其层数增加,同时取向度下降。 展开更多
关键词 熔喷非织造布 结构 基平面网 制备工艺参数
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SDICN: A Software Defined Deployable Framework of Information Centric Networking 被引量:4
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作者 WANG Xiulei CHEN Ming +2 位作者 HU Chao WENG Xi XING Changyou 《China Communications》 SCIE CSCD 2016年第3期53-65,共13页
the Information-Centric Networking(ICN) paradigm is proved to have the advantages of decreasing data delivery latency, enhancing user mobility, etc. However, current implementations of ICN require changing the infrast... the Information-Centric Networking(ICN) paradigm is proved to have the advantages of decreasing data delivery latency, enhancing user mobility, etc. However, current implementations of ICN require changing the infrastructure of Internet, which hinders its deployment and development. Meanwhile, Software Defined Networking(SDN) emerges as a viable solution to facilitate the deployment of new network paradigm without disrupting production traffic by decoupling the control plane from data forwarding plane. In this paper, the essential properties which reflect ICN working principles are summarized, and a framework called SDICN is designed in accordance to the SDN philosophy. The algorithmic frameworks of SDICN which can satisfy the essential properties are designed based on the programmability and virtualization functions of SDN. Based on Open Flow and data center technology, a prototype of SDICN is implemented. By comparing the performance with the CCNx, the SDICN is proved to be feasibility and availability. 展开更多
关键词 ICN content routing SDN OpenFlow deployment
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A spherical parameterization approach based on symmetry analysis of triangular meshes 被引量:2
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作者 Jian-ping HU Xiu-ping LIU +2 位作者 Zhi-xun SU Xi-quan SHI Feng-shan LIU 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2009年第7期1009-1017,共9页
We present an efficient spherical parameterization approach aimed at simultaneously reducing area and angle dis-tortions. We generate the final spherical mapping by independently establishing two hemisphere parameteri... We present an efficient spherical parameterization approach aimed at simultaneously reducing area and angle dis-tortions. We generate the final spherical mapping by independently establishing two hemisphere parameterizations. The essence of the approach is to reduce spherical parameterization to a planar problem using symmetry analysis of 3D meshes. Experiments and comparisons were undertaken with various non-trivial 3D models, which revealed that our approach is efficient and robust. In particular, our method produces almost isometric parameterizations for the objects close to the sphere. 展开更多
关键词 Triangular mesh Spherical parameterization Symmetry analysis
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