Keynote Speakers

Keynote Speakers

Prof. Dr. Nguyen Quang Liem
Institute Materials Sciences, Vietnam Academy of Science and Technology, Hanoi, Vietnam

Biography: Nguyen Quang Liem is a Professor of physics. He served as Director of Institute of Materials Science (IMS), Vietnam Academy of Science and Technology (VAST) over the period 2009–2017. He has rich experiences in optoelectronic materials and has published more than 100 papers on international journals, one book and some patents. His research interests are in optoelectronic materials (film and quantum dots/nanocrystals) and devices (luminescent materials for light emitting diode and for biolabeling/sensors, photocatalysts for photo-reactivity and for photoreactor), development of scientific instruments and spectroscopic measuring techniques, especially some related ones like Raman scattering and photoluminescence spectroscopy enhanced with surface plasmon resonance for fast/non-destructive and sensitive analysis/detection of residual pesticides, chemical radicals, characterizations of the ancient art/cultural products. He is the Vice-President of the Vietnam Physical Society (VPS) and a Council Member of the Association of Asia Pacific Physical Societies (AAPPS). He is Editor-in-Chief of Advances Natural Sciences: Nanoscience and Nanotechnology (IOP Publishing), editorial member of Heliyon (Elsevier) and of Journal of Science: Advanced Materials and Devices (Elsevier).

Prof. Dr. Ildoo Chung
Pusan National University, Busan, Korea

Biography: Professor Ildoo Chung joined the faculty of the Department of Polymer Science and Engineering at Pusan National University, Korea, in 2005. Prior to that, he completed his postdoctoral training with Professor Jimmy Mays in the Department of Chemistry at the University of Tennessee, USA, and with Professor Dong Xie in the Department of Biomedical Engineering at the University of Alabama at Birmingham, USA. He received his Ph.D. from Pusan National University in 2000. He has served as the editor-in-chief of the Journal of Adhesion and Interface and as a member of the board of directors of the Polymer Society of Korea, the Korea Society of Adhesion and Interface, the Korea Polyurethane Society, and the Asian Cyclodextrin Conference. He has over 130 peer-reviewed publications and over 200 presentations at national and international conferences. His research interests are focused on polymer synthesis, including atom transfer radical polymerization (ATRP) and reversible addition-fragmentation chain transfer (RAFT) polymerization, applied to advanced polymeric biomaterials such as drug delivery systems, hard/soft tissue compatible polymers, photocurable 3D printing polymers, biodegradable polymers, and composite systems.

Prof. Hirohito Yamada
Tohoku University, Japan

Biography: Hirohito Yamada received the B.E. degree from Kanazawa University, Kanazawa, Japan, in 1981, and the M.E. and Ph.D. degrees from Tohoku University, Sendai, Japan, in 1983 and 1987, respectively, all in electronics engineering. In 1987, he joined the Opto-Electronics Research Laboratories, NEC Corporation, where he studied laser diodes for optical communications. From 1991 to 1997, he developed laser diodes for optical-subscriber systems at Kansai Electronics Research Laboratory. From 1998, he studied photonic crystals and Si nanowire devices at NEC Tsukuba. Since 2006, he has been a Professor in the Department of Electrical and Communication Engineering, Tohoku University, Sendai. Dr. Yamada is a member of the Institute of Electronics, Information and Communication Engineers, Japan Society of Applied Physics, and Optical Society.

Prof. Patrick Townsend Valencia
Escuela Superior Politécnica del Litoral, ESPOL

Biography: Patrick Townsend focuses his research on the development of new viscoelastic and auxetic composite materials to prevent damage in fiberglass and glass fiber reinforced plastic (GFRP) vessels caused by the wave impact phenomenon known as slamming. His work aims to extend the service life of high-speed vessels by protecting laminates from microcracks and delaminations. He has conducted studies on the mechanical behavior of GFRP hull laminates using auxetic sheet designs to enhance energy dissipation under impact. His research combines laboratory experiments, 3D printing of second-generation auxetic components, and comparative mechanical testing to evaluate the effectiveness of modified specimens. He has collaborated with institutions such as the Escuela Superior Politécnica del Litoral (ESPOL) in Ecuador and the Materials Research Center at the Polytechnic University of Madrid, as well as with shipyards engaged in the construction of planing hull vessels.
He has demonstrated that auxetic sheets with an “M”-shaped geometry are the most effective in absorbing energy under uniaxial compression, simulating quasi-static impact conditions. His work has also focused on the detection and mitigation of debonding—a critical failure mode that can lead to delamination at the bottom of vessel hulls. To study this, he has designed specimens modified with viscoelastic cores produced by 3D printing and compared them to unmodified samples through tensile and bending tests. The results revealed improved crack propagation resistance and enhanced stress-strain behavior in the modified composites. His current publications serve as a foundation for the redesign of GFRP naval structures, and his latest advancements will be presented at the ICMFM2026 conference.

speech title "Design of a Spherical Shell Modified with Viscoelastic Laminates for Compression"

Abstract-This study experimentally analyzes the effect of entrapped gas bubbles in GFRP repairs on naval structures, focusing on a vessel operating in the Galápagos Islands. Specimens are fabricated following the ISO 527-4:2022 standard using hand lay-up techniques on flat molds, incorporating both defect-free and intentionally bubble-induced samples. Uniaxial tensile tests are performed to assess variations in mechanical behavior caused by voids across the repair width. The methodology includes a comparative analysis between unrepaired (original) and repaired zones, allowing the quantification of strength loss due to entrapped air. Given that the hull of a vessel is cyclically subjected to tensile and compressive stresses depending on sea conditions, this testing approach offers a realistic assessment of how repair defects can compromise structural integrity. The results aim to inform best practices in composite repair and highlight the importance of manufacturing quality in restoring mechanical performance.