报告题目：Significance of Structural Multiscale Hierarchy in Material Systems
报 告 人：潘宁教授 (美国加州大学戴维斯分校)
报告时间：2011年10月25日（星期二）下午 2:00
报告地点：独墅湖校区907楼1445
报告摘要：Structural heterogeneity and hierarchy are inherent features in biological materials, but their significance in affecting the system behaviors is yet to be fully understood. My presentation first discusses the important features characterizing a hierarchal material system at various scales. It then demonstrates that such structural multiscale hierarchy, along with other related structural characteristics, can effectively increase the system specific surface area and hence the catalytic capacity, improve the material flexibility and resilience, and enhance synergistically the transport, strength and other important properties. It next deals with the associated issues including the behavior non-affinities due to disparity in hierarchal levels and the importance of system dimensionality. Finally it also stresses the adverse consequences once the existing structural hierarchy breaks down, especially in biological systems due to various mutations. This presentation examines these related topics with several approaches to not only reveal the underline geometrical and physical mechanisms, but also emphasize the ways in which such mechanisms can be applied to developing engineered material systems with novel properties.
报告人简介：潘宁，1985年毕业于中国东华大学纤维材料工程系获博士学位，1985年~1987年中国东华大学讲师，1987年~1988年新西兰羊毛研究组织访问学者，1988年美国加州州立大学访问学者，1990年美国麻省理工学院博士后，1990年至今美国加州大学戴维斯分校助理教授、副教授、教授。东华大学、江南大学、青岛大学、天津工业大学特聘教授，英国皇家纺织学会会士，美国机械工程学会(ASME)会士，AAAS、APS、材料研究学会（MRS）、美国力学科学院（AAM）、美国纤维学会、英国皇家纺织学会会员。2001年任美国纤维学会主席。2005年获得美国 NASA Tech Brief Nano 50 奖。迄今为止，已有190多篇Peer reviewed 科学杂志文章，其中150 多篇 SCI 收录。包括英国皇家学会会刊, 美国物理评论等。现担任美国Textile Research Journal (TRJ)、英国Textile Progress等杂志编委。发表多部专著“Thermal and Moisture Transport in Fibrous Material”，“Fluid transport phenomena in fibrous materials”，“2005 Physics of Fibrous Soft Matters”。
(现代丝绸国家工程实验室)