2019 7th International Conference on Nano and Materials Science
January 4-7, 2019 | San Francisco, CA, USA
ICNMS2019 Keynote Speakers
Prof. Ramesh K. Agarwal
Washington University in St. Louis, USA
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: Shape Memory Alloys for Aerospace Applications
Abstract: Shape memory alloys (SMAs) are special class of metallic alloys which have the ability to recover from their original shape at some characteristic temperatures (it is called the shape memory effect), even under high loading and large inelastic deformations. Also, they can undergo large strains without plastic deformation or failure exhibiting super-elasticity. Thus they offer several advantages that the product designers can exploit such as the possibility of transmitting large forces and deformations, compactness, and the intrinsic capability to absorb loads. In addition, in some applications their use as monolithic actuators can lead to potential simplifications of the system through a reduction of number of parts and the removal of other redundant mechanisms. For these reasons, in past couple of decades the aerospace industry has paid increasing attention on using SMAs, even though issues regarding their fatigue life and performance degradation need to be addressed. In this keynote review paper, we describe the main features of SMAs, their constitutive models and their properties. We also review the fatigue behavior of SMAs and some methods adopted to remove or reduce its undesirable effects. The review includes examples of applications of SMAs in fighter aircraft, transport aircraft, rotorcraft, UAV and spacecraft.
Prof. Ridha Ben Mrad
University of Toronto, Canada
Ridha Ben-Mrad, P.Eng., FCSME, Chief Research Officer and Associate Academic Director of Mitacs (www.mitacs.ca). He is Director of the Mechatronics and Microsystems Group and a Professor in the Department of Mechanical and Industrial Engineering, University of Toronto (www.mie.utoronto.ca). He is also a Co-founder and CTO of Sheba Microsystems Inc. (www.shebamicrosystems.com). He joined the University of Toronto in 1997, having previously held positions at the National Research Council of Canada in Vancouver, BC, and the Ford Research Laboratory in Dearborn, Michigan. R. Ben-Mrad received a PHD in Mechanical Engineering from the University of Michigan, Ann Arbor in 1994. He also received a Bachelor of Science in Mechanical Engineering from Penn State, a Master’s degree in Mechanical Engineering and a Master’s degree in Electrical Engineering both from the University of Michigan, Ann Arbor. R. Ben-Mrad’s research interests are micro-actuators and sensors, MEMS, microfabrication, and development of smart materials based devices. His research led to a number of patents and inventions including 12US, Canadian, European and Chinese patents and more than 160 refereed research publications. He supervised the work of more than 16 PHD students, 38 Master’s students, 14 researchers, 3 Post-Doctoral Fellows, and 64 senior undergraduate students. He received the Faculty Early Career Teaching Award in 2002 and the Connaught Innovation Award in 2013 and in 2014. R. Ben-Mrad currently chairs the IEEE IES Committee on MEMS and Nanotechnology (2015-2016), is Associate Editor of the IEEE Industrial Electronics Tech News (2013-current) and the Journal of Mechatronics (2015-current), serves on the Steering Committee of the IEEE Journal on Micro Electro Mechanical Systems (2010-current) and is a member of the IEEE IES Publication Committee (2013-current). He was the founding Director of the Institute for Robotics and Mechatronics at the University of Toronto (2009-2011) and was Associate Chair of Research of his department (2009-2012).
Title of Speech: High-Performance Micro Electrostatic Actuators with Applications
Abstract: MEMS actuators with high performance are needed for a large number of emerging applications including manipulation of lenses and imaging sensors for adaptive optics and focusing/zooming and optical image stabilization in miniature cameras, micromanipulators, sensing for autonomous vehicles and vector display for HUD in automotive systems and many others. These micro actuators offer varying requirements in terms of stroke, speed, accuracy, reliability, linear versus rotational motion and a number of other requirements. The talk will be presenting novel MEMS actuator platforms with a focus on micro-electrostatic technology that offer large stroke, generate large forces per unit area and a number of degrees of freedom. Different implementations of these micro-actuators are shown and their use for developing a number of applications including 3D micro-mirrors for vector display and automotive head up display, and autofocus and optical image stabilization in miniature cameras.
ICNMS2019 Invited Speaker
Assoc. Prof. Woo-Tae Park
Seoul National University of Science and Technology, Korea
Woo-Tae Park received the B.S. degree in mechanical design from Sungkyunkwan University, Seoul, Korea, in 2000, the M.S. and Ph.D. degrees in mechanical engineering from Stanford University, Stanford, Calif, USA, in 2002 and 2006 respectively. For his graduate degree work, he worked on optical measurements for electrical contact deformation, wafer scale encapsulated MEMS devices, and submillimeter piezoresistive accelerometers for biomedical applications. The research was conducted under the guidance of Prof. Thomas W. Kenny.
After graduation, he started as a senior packaging engineer at Intel Corporation, designing silicon test chips for assembly, test, and reliability. He then went to Freescale Semiconductor, leading several projects on MEMS process development in the Sensor and Actuator Solutions Division. After 4 years of industry experience, Woo-Tae moved to Institute of Microelectronics (IME) at Singapore, where he started as MEMS designer, and then got promoted to project leader, and eventually group leader (principle investigator). At IME, Woo-Tae worked on implantable biomedical MEMS sensors systems and wireless neural probes.
Prof. Park is currently associate professor at Seoul National University of Science and Technology (Seoul Tech), working on fundamental and applied research in micro/nano devices used for biomedical applications.
Title of Speech: Polymer Air Molding Fabrication for Biomedical Applications
Abstract: Circular cross-section microchannels have many advantages over rectangular cross-section microchannels. It can mimic biological glands and vessels more closely, be used for biomolecules culturing more effectively, and be used for fluidic structures such as nozzles or valves more efficiently. I would like to present a couple of methods to create these circular cross-section microchannels using thermal air expansion, and compressed gas expansion with polydimethylsiloxane (PDMS). We have created a wide variety of circular microchannels with diameters ranging from 25 to 500 μm. The dimension can be controlled by starting mold dimensions, applied gas pressure, and gelation time of the partially cured PDMS. The process provides a simpler and more accurate solution than other circular microchannels fabrication techniques, not requiring plasma-activated bonding or careful alignment processes