-
188
- Nanyang Technological Univeristy-Yonsei School of Engineering Visit Concludes Successfully (2025.05.26)
- Nanyang Technological Univeristy-Yonsei School of Engineering Visit Concludes Successfully The “NTU-Yonsei Exchange Program,” jointly hosted by Nanyang Technological University (NTU), Singapore, and the College of Engineering at Yonsei University, was successfully concluded. As part of the program, 14 students from NTU visited Yonsei University for an academic and cultural exchange. At Yonsei, Vice Dean Jongmoon Jung, along with Professors Wonhyoung Ryu and Kyoungmin Min from the Department of Mechanical Engineering, participated in the event, joined by Mechanical Eng. Dept. BK21 research professor, Mirkomil Sharipov, ME graduate student, Jiyeon Yi, and four graduate students from the College of Engineering. The program featured an introduction to the College of Engineering at Yonsei and a Q&A session where graduate students shared insights into their ongoing research. Following the academic exchange, the NTU students were given a campus tour of Yonsei University, and later joined Yonsei students for lunch. This provided an opportunity for students from both universities to interact freely, gain cultural understanding, and build friendships. Beyond academic collaboration, the program served as a platform to foster closer ties among students and laid the groundwork for ongoing cooperation and mutual development between the two institutions.
- 기계공학부 2025.05.27
-
187
- Development of paper-based inkjet printed thermoacoustic loudspeaker (2025.04.25)
- Development of paper-based inkjet printed thermoacoustic loudspeaker A research team, led by Professor Jongbaeg Kim from the Department of Mechanical Engineering has developed a thermoacoustic loudspeaker that can be applied in various forms by utilizing a commercial inkjet printer and conductive carbon nanotube ink. Thermoacoustic loudspeakers are gaining attention in the field of flexible loudspeakers due to their unique sound generation mechanism, which does not require any mechanically moving components. While previous studies on thermoacoustic loudspeakers have adopted suspended structures or ultrathin substrates to enhance sound output—making them vulnerable to repeated mechanical deformation—this research demonstrates that by combining a porous paper substrate with 1-D conductive carbon nanotube structures, it is possible to achieve high decibel (dB) sound output while maintaining performance even under repeated mechanical deformation. The study further showcases foldable and unfoldable speakers using Miura-Ori origami patterns, as well as omnidirectional sound output. These findings were published in Advanced Functional Materials, a prestigious international journal in the field of nanoscience, and featured on Nanowerk, a global portal site specializing in nanotechnology-related information. The link: https://advanced.onlinelibrary.wiley.com/doi/10.1002/adfm.202415218 https://www.nanowerk.com/spotlight/spotid=66101.php
- 기계공학부 2025.05.22
-
186
- Development of High-Precision 3D Shape Reconstruction Method Using Model-Free Patterns (2025.04.11)
- Development of High-Precision 3D Shape Reconstruction Method Using Model-Free Patterns The research team led by Professor Jae-Sang Hyun from the Department of Mechanical Engineering (with first author Seungjae Son, in the integrated program) has developed a structured light-based 3D shape reconstruction technique capable of utilizing various model-free patterns. Traditional structured light projection systems typically depend on ideal linear patterns to reconstruct 3D shapes. However, generating such ideal patterns is challenging in practical settings due to optical distortions and lens aberrations. To address this, the study introduces a calibration method that facilitates high-precision reconstruction even when using model-free patterns without relying on a predefined geometric model. The effectiveness of this technique has been validated through experimental results. The findings of this research were published in the internationally renowned optics journal, Optics Express, in April 2025. The link: https://doi.org/10.1364/OE.561136
- 기계공학부 2025.05.22
-
185
- Professor Wonjung Kim Receives the Gasan Academic Award from the Korean Society of Mechanical Engineers (2025.04.03)
- Professor Wonjung Kim Receives the Gasan Academic Award from the Korean Society of Mechanical Engineers Professor Wonjung Kim of the School of Mechanical Engineering at Yonsei University has been awarded the Gasan Academic Award by the Korean Society of Mechanical Engineers (KSME). This award recognizes young researchers who have made outstanding contributions to the advancement of fluid engineering through exceptional research achievements. The Gasan Academic Award was established in December 2012 with a donation from former KSME president Jung Yul Yoo (pen name: Gasan, 佳山). It is presented annually by the Fluid Engineering Division of KSME to researchers with notable accomplishments in the field. The award is particularly meaningful as it highlights the academic contributions of next-generation researchers with both creativity and potential for future impact in fluid engineering. Professor Kim has distinguished himself through numerous studies, including his representative work “Dynamics of Water Imbibition Through Paper with Swelling.” His research has advanced both the theoretical understanding and practical applications of microscale fluid engineering. His contributions are recognized as having significantly deepened the theoretical foundation and strengthened the experimental basis of fluid mechanics in Korea.
- 기계공학부 2025.05.22
-
184
- Development of flow uniformity control method through pressure drop optimization in a SOEC stack (2025.04.01)
- Development of flow uniformity control method through pressure drop optimization in a SOEC stack Professor Jong-Sup Hong’s research team in the Department of Mechanical Engineering has developed a high-fidelity three-dimensional multiphysics simulation model for accurately analyzing the internal reaction distribution of large-scale Solid Oxide Electrolysis Cells (SOECs). Based on this model, the team proposed a design approach that ensures uniform interlayer fuel distribution by optimizing the internal pressure profile within the stack. The model and design methodology were experimentally validated, and their application to a kW-scale SOEC stack successfully demonstrated the resolution of fuel distribution non-uniformities. The results of this research were published in April 2024 in Applied Energy (Impact Factor: 10.1), a leading international journal. The link: https://www.sciencedirect.com/science/article/pii/S0306261925000984
- 기계공학부 2025.05.22
-
183
- Development of a contactless external manifold for uniformization of internal environment in SOC stacks (2025.04.01)
- Development of a contactless external manifold for uniformization of internal environment in SOC stacks The research team led by Professor Jongseop Hong from the Department of Mechanical Engineering (with Donghun Ryu as the first author) introduced a contactless external manifold structure, replacing the conventional contact-type manifold design. This structure effectively homogenized the diverse thermal, fluidic, and electrochemical environments within the stack. Furthermore, the contactless nature of the manifold and stack helps mitigate mechanical failures such as electrical shorts and sealing issues. This research has been published in the renowned international journal Energy Conversion and Management: X (Impact Factor: 7.1) in April 2025. The link: https://www.sciencedirect.com/science/article/pii/S2590174525000662
- 기계공학부 2025.05.22
-
182
- Ultra-Light, Flexible Solar Cell Achieves World’s Highest Efficiency of 23.64% — Breakthrough Lift-Off Process Enhances
- Ultra-Light, Flexible Solar Cell Achieves World’s Highest Efficiency of 23.64% — Breakthrough Lift-Off Process Enhances Performance of Perovskite/CIGS Tandem Cells Professor Hae-Jin Kim from the Department of ME, Senior Researcher In-Young Jung and Principal Researcher Ki-Hwan Kim of the Korea Institute of Energy Research, and Professor Tae-Kyung Lee of Gyeongsang National University have developed a novel "lift-off" process to improve both the manufacturability and flexibility of flexible tandem solar cells. This advancement not only streamlines the fabrication process but also enhances the lightweight and conformable properties of the solar cells. Utilizing this technique, the team successfully fabricated perovskite/CIGS tandem solar cells that achieved a power conversion efficiency of 23.64%, setting a world-leading benchmark. The resulting solar cells are extremely light and capable of adhering to curved surfaces, making them promising candidates for future integration into buildings, vehicles, and aircraft. The findings were published in March 2025 in Joule, a prestigious international journal (Impact Factor: 38.6, JCR top 0.8%). The link: https://www.cell.com/joule/fulltext/S2542-4351(24)00508-7
- 기계공학부 2025.05.22
-
181
- Enhancing uniformity and performance in Solid Oxide Fuel Cells with double symmetry interconnect design (2025.03.01)
- Enhancing uniformity and performance in Solid Oxide Fuel Cells with double symmetry interconnect design Professor Jongsub Hong’s research team from the Department of Mechanical Engineering (with Dr. Wooseok Lee as the first author) collaborated with the German Aerospace Center (DLR) to propose a novel interconnect design aimed at mitigating degradation issues in Solid Oxide Fuel Cells (SOFCs). This study enhanced the symmetry of conventional interconnects to achieve more uniform distributions of internal heat and chemical reactions, and demonstrated improved uniformity of thermal and reactive environments through three-dimensional multiphysics simulations. Recognized for its excellence, the proposed design has been patented in the United States, Japan, and South Korea, and was transferred to the domestic SOFC system manufacturer PNPenergytech. The research findings were published in Applied Energy (Impact Factor: 10.1), a leading international journal, in March 2025. The link: https://doi.org/10.1016/j.apenergy.2024.125178
- 기계공학부 2025.05.22
-
180
- Yonsei University Successfully Hosts KSME Fluid Engineering Division Spring Conference
- Yonsei University Successfully Hosts KSME Fluid Engineering Division Spring Conference From April 2nd to 4th, the Spring Conference of the Korean Society of Mechanical Engineers (KSME), Fluid Engineering Division, was successfully held at Yonsei University's Baekyangnuri. The event was jointly organized by the Fluid Engineering Division of KSME, Yonsei University’s Department of Mechanical Engineering Education and Research Unit, and the Exascale Computing for Linear Solver Development Project. The conference brought together experts from both domestic and international institutions to share the latest research trends and practical applications in fluid engineering. A notable highlight was the invited lecture by Professor Hyung Hee Cho of Yonsei University, who presented recent research outcomes and future technological directions under the theme "High-Efficiency Turbine Technology for Advanced Aero-Engine Development." Professor Wonjung Kim of Yonsei University, recipient of this year's Gasan Academic Award, delivered a special lecture titled "Contact Line Dynamics of Gallium-Based Liquid Metals." Professor Kim’s presentation generated significant interest as he discussed innovative applications of liquid metal materials and advanced insights into fluid dynamics phenomena. The conference featured active scholarly exchanges through various special sessions, general presentations, and poster sessions. A total of 157 research presentations were delivered, including 126 oral presentations and 31 poster presentations, attracting approximately 300 participants who actively shared the latest developments in the fluid engineering field. Professor Jung-Il Choi from Yonsei University, chair of the conference organizing committee, commented, "This event provided a meaningful opportunity to share academic achievements and promote industry-academic collaboration in fluid engineering." The conference was well-received, with positive evaluations highlighting its role in broadly promoting the research capabilities of Korea's fluid engineering sector and providing an excellent academic networking platform for next-generation researchers.
- 기계공학부 2025.04.07
-
179
- Yonsei University Successfully Concludes YES2025 International Symposium Celebrating its 140th Anniversary
- Yonsei University Successfully Concludes YES2025 International Symposium Celebrating its 140th Anniversary The YES2025 International Symposium, held from March 23 to 25, 2025, at Baekyang Nuri, Yonsei University, successfully concluded. Celebrating the 140th anniversary of Yonsei University, this event gathered world-renowned scholars who discussed future technological developments and facilitated active academic exchanges. Notably, keynote speeches by Professor George Malliaras from the University of Cambridge, Professor Jun Zhang from the Hong Kong University of Science and Technology, Professor Atsuo Yamada from the University of Tokyo, Professor Liwei Lin from UC Berkeley, and Professor Jung-ho Hwang from Yonsei University received significant acclaim. Throughout the symposium, participants presented recent research findings across diverse fields and engaged in in-depth discussions and Q&A sessions, enhancing their academic understanding and gaining new insights. Graduate students from Yonsei University's Department of Mechanical Engineering garnered attention with their exceptional research presentations during the poster sessions. In particular, collaboration among four departments from the College of Engineering, including Mechanical Engineering, was highly praised for elevating the quality and scale of the event. Participants expressed satisfaction, remarking, "The symposium provided substantial academic stimulation and meaningful exchanges." YES2025 is anticipated to serve as an exemplary model for sustainable international academic exchange initiatives within engineering colleges.
- 기계공학부 2025.04.01