Prof. Ramesh K. Agarwal
Washington University in St. Louis, USA
Biography: Professor Ramesh K. Agarwal is the William Palm Professor of Engineering in the department of Mechanical Engineering and Materials Science at Washington University in St. Louis. From 1994 to 2001, he was the Sam Bloomfield Distinguished Professor and Executive Director of the National Institute for Aviation Research at Wichita State University in Kansas. From 1978 to 1994, he was the Program Director and McDonnell Douglas Fellow at McDonnell Douglas Research Laboratories in St. Louis. Dr. Agarwal received Ph.D in Aeronautical Sciences from Stanford University in 1975, M.S. in Aeronautical Engineering from the University of Minnesota in 1969 and B.S. in Mechanical Engineering from Indian Institute of Technology, Kharagpur, India in 1968. Over a period of forty years, Professor Agarwal has worked in various areas of Computational Science and Engineering - Computational Fluid Dynamics (CFD), Computational Materials Science and Manufacturing, Computational Electromagnetics (CEM), Neuro-Computing, Control Theory and Systems, and Multidisciplinary Design and Optimization. He is the author and coauthor of over 500 journal and refereed conference publications. He has given many plenary, keynote and invited lectures at various national and international conferences worldwide in over fifty countries. Professor Agarwal continues to serve on many academic, government, and industrial advisory committees. Dr. Agarwal is a Fellow eighteen societies including the Institute of Electrical and Electronics Engineers (IEEE), American Association for Advancement of Science (AAAS), American Institute of Aeronautics and Astronautics (AIAA), American Physical Society (APS), American Society of Mechanical Engineers (ASME), Royal Aeronautical Society, Chinese Society of Aeronautics and Astronautics (CSAA), Society of Manufacturing Engineers (SME) and American Society for Engineering Education (ASEE). He has received many prestigious honors and national/international awards from various professional societies and organizations for his research contributions.
Title of Speech: Review of Metamaterials: Designed Crystalline Materials with Unusual Properties
Abstract: Metamaterials are rationally designed artificial materials composed of tailored functional building blocks densely packed into an effective (crystalline) material. While metamaterials historically are primarily thought to be associated with negative refractive indices and invisibility cloaking in electromagnetism or optics, it turns out that the simple metamaterial concept also applies to many other areas of physics namely the thermodynamics, classical mechanics (including elastostatics, acoustics, fluid dynamics and elastodynamics) and in principle also to the quantum mechanics. This lecture will review the basic concepts and analogies behind the thermodynamic, acoustic, elastodynamic/elastostatic, and electromagnetic metamaterials and differences among them. It will provide an overview of the theory, the current state of the art and example applications of various types of metamaterials. The review will also discuss the homogeneous as well as inhomogeneous metamaterial architectures designed by coordinate-transformation-based approaches analogous to transformation optics. The application examples will include laminates, thermal cloaks, thermal concentrators and inverters, anisotropic acoustic metamaterials, acoustic free-space and carpet cloaks, auxetic mechanical metamaterials, pentamode metamaterials (meta-liquid), and mechanical metamaterials with negative dynamic mass density, negative dynamic bulk modulus, or negative phase velocity. Finally an example of quantum-mechanical matter-wave cloaking will be provided.
Prof. Sreeramamurthy Ankem
University of Maryland, USA
Biography: Dr. Sreeramamurthy Ankem is a professor at the University of Maryland, College Park, USA. His research interests include: Physical and mechanical behavior of structural materials including titanium alloys and stainless steels, modeling microstructure evolution in multiphase systems, finite element modeling (FEM) of deformation and damping behavior of composite materials, and biomedical implants. He has over 95 publications in these areas. Prof. Ankem has received many awards and he is a Fellow of the professional society ASM International (FASM).
Title of Speech: Recent Developments on Deformation Twinning in Metallic Materials
Abstract: Twinning is known to be an important deformation mechanism in crystalline materials like metals and ceramics. Once the twin nucleates, it is normally expected that the growth of twins approaches the speed of sound in the material. However, the author and his coworkers have discovered that this process can occur at speeds many orders of magnitude lower than the speed of sound. This was found to occur both in hexagonal close-packed (HCP) structures as well as in body centered cubic (BCC) structures. More importantly, twinning in titanium alloys has been attributed to control the low temperature (<0.25 Tm) creep deformation. Given that many metallic and ceramic materials exist in HCP and BCC crystalline forms, these findings are expected to be applicable to most of these materials as well. The phenomenon of slow growth of twins has been termed time-dependent twinning. It has been suggested that this process is due to slow diffusion of oxygen atoms that occupy interstitial sites, which are displaced away from the twin/parent matrix grain boundary. In this presentation, the crystallographic and atomistic models for the diffusion of oxygen for time-dependent twinning phenomena will be presented. In addition, the effect of the microstructural parameters, such as grain size, on the time-dependent twinning phenomenon will be discussed. Furthermore, the ramifications of these findings in relation to the processing of existing metallic materials and the development of new alloys will be outlined.
Assoc. Prof. Ho Won Jang
Seoul National University, Republic of Korea
Biography: Ho Won Jang is an associate professor at the Department of Materials Science and Engineering of Seoul National University. He earned his Ph. D. degree from the Department of Materials Science and Engineering of Pohang University of Science and Technology (POSTECH) in 2004. He worked as a research associate at University of Madison-Wisconsin from 2006 to 2009. Before he joined Seoul National University in 2012, he worked in Korea Institute of Science and Technology (KIST) as a senior research scientist. He received Graduate Student Award in 2003 MRS Fall Meeting, Outstanding Poster Award in 2010 MRS Spring Meeting, Young Ceramist Award from Korean Ceramic Society in 2014, and Shinyang Academic Award from the College of Engineering of Seoul National University in 2016. His research interests include material synthesis and device fabrication for solar water splitting cells, chemical sensors, memristors, plasmonics, and metal-insulator transition. He published about 160 publications in international referred journals and the h-index of the publications is 35 (based on Web of Science). He is serving as an Editor for Electronic Materials Letters.
Prof. Ying Tan
Peking University, China
Biography: Ying Tan is a full professor and PhD advisor at the School of Electronics Engineering and Computer Science of Peking University, and director of Computational Intelligence Laboratory at Peking University. He received his B.Eng from Electronic Engineering Institute, M.S. from Xidian University, and PhD from Southeast University, in 1985, 1988, and 1997, respectively. Then a postdoctoral fellow and associate professor at University of Science and Technology of China. He worked at Chinese University of Hong Kong in 1999 and 2004-2005. He was an electee of One Hundred Talent Program of China Academy of Science (CAS) in 2005. He is the inventor of Fireworks Algorithm (FWA).
Ying Tan is a full professor and PhD advisor at the School of Electronics Engineering and Computer Science of Peking University, and director of Computational Intelligence Laboratory at Peking University. He received his B.Eng, M.S., and PhD from Southeast University, in 1985, 1988, and 1997, respectively. He was an electee of One-Hundred-Talent-Program of China Academy of Science (CAS) in 2005 and the inventor of Fireworks Algorithm (FWA).
He serves as the Editor-in-Chief of International Journal of Computational Intelligence and Pattern Recognition (IJCIPR), the Associate Editor of IEEE Transactions on Evolutionary Computation (TEC), IEEE Transactions on Cybernetics (CYB), IEEE Transactions on Neural Networks and Learning Systems (NNLS), International Journal of Swarm Intelligence Research (IJSIR), International Journal of Artificial Intelligence (IJAI), etc. He also served as an Editor of Springer’s Lecture Notes on Computer Science (LNCS) for 20+ volumes, and Guest Editors of several referred Journals, including IEEE/ACM Transactions on Computational Biology and Bioinformatics, Information Science, Softcomputing, Neurocomputing, Natural Computation, IJSIR, IJAI, etc. He is an IEEE senior member and a member of Emergent Technologies Technical Committee (ETTC) of IEEE Computational Intelligence Society since 2010. He is the founder general chair of the ICSI International Conference series since 2010. He won the 2nd-Class Natural Science Award of China in 2009.
His research interests include computational intelligence, swarm intelligence, swarm robotics, data mining, pattern recognition, intelligent information processing for information security, etc. He has published more than 280 papers in refereed journals and conferences in these areas, and authored/co-authored 11 books and 12 chapters in book, and received 4 invention patents.