报告题目：Mechanics of Plant Leaf Morphogenesis

报告人：夏焜

主持人（邀请人）：王国勇

报告时间：10月20日下午15:00—16:30

报告地点：机械材料馆209报告厅

主办单位：吉林大学材料科学与工程学院

摘要：

The ability to change shape is as important to an emerging class of engineering applications as it is to biological systems. Plant organs exhibit extremely diverse shapes and forms. Morphogenesis – the process of becoming and formation of these shapes – is a subject of interest to many scientists, particularly to plant biologists. This subject, however, is also a hugely rich area of research for mechanicians, posing challenging problems at the interface of plant biology, biochemistry, and mechanics. For example, plant leaves, as the principal photosynthetic organ of plant and characterized by various shapes, present an interesting system to study the regulation of shape formation. In this talk, we will present a brief review of leaf morphogenesis and morphing phenomena, focusing on the role of mechanics in plant leaf shape formation and change in response to the external environment. In particular, we will study the strain-mismatch induced morphing. Such mechanical principles, while relatively simple, may be used to understand a more complex range of different phenomena, e.g., the mechanisms of plant leaf morphogenesis.

报告人简介：

K. Jimmy Hsia is President’s Chair Professor in the School of Mechanical & Aerospace Engineering and School of Chemical & Biomedical Engineering at Nanyang Technological University (NTU) in Singapore. He received B.S. from Tsinghua University, China, M.S. from Beihang University, and Ph.D. from MIT. He is Fellow of American Association for the Advancement of Science (AAAS), Fellow of American Institute for Medical and Biological Engineers (AIMBE), Fellow of American Society of Mechanical Engineers (ASME), and recipient of NSF Research Initiation Award, Max-Planck Society Scholarship, and Japan Society for Promotion of Science Fellowship. He was Founding Dean of Graduate College and Vice President (Alumni & International Affairs) at NTU. Before joining NTU, Hsia was Professor of Mechanical Engineering and Biomedical Engineering and Vice Provost for International Programs at Carnegie Mellon University, and before then was W. Grafton and Lillian B. Wilkins Professor of Mechanical Science and Engineering at the University of Illinois at Urbana-Champaign (UIUC). From 2005-2007, Hsia served as Founding Director of Nano and Bio Mechanics Program in the Directorate for Engineering at NSF. He is Founding co-Editor-in-Chief of an Elsevier journal, Extreme Mechanics Letters.