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Department of Computer Engineering Wins Grand Prize at the 'Smart Agriculture AI Competition', Receiving the Rural Development Administration Award 이미지
Department of Computer Engineering Wins Grand Prize at the 'Smart Agriculture AI Competition', Receiving the Rural Development Administration Award
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  • □ Hanbat National University announced on the 20th that the DfX Lab. research team from the Department of Computer Engineering (led by Professor Lee Hyun-bin) won the Top Excellence Award (Rural Development Administration Award) at the '2025 Smart Agriculture Artificial Intelligence (AI) Competition'.○ Hosted by the Ministry of Agriculture, Food and Rural Affairs (MAFRA) and the Korea Agriculture Technology Promotion Agency (KOAT) for the general public, this competition was designed with the goal of 'developing AI cultivation models for strawberries adapted to climate change.□ The competition was conducted in two stages: a preliminary round to develop AI algorithms using public growth and environmental data from Outstanding farms, and a final round where the selected algorithms were applied to actual greenhouses for remote cultivation and management.○ The competition drew significant interest in the field of smart agriculture AI, with participants ranging from domestic universities and companies to international institutions and global corporations. Competing teams demonstrated their technological maturity by integrating AI throughout the entire cultivation processincluding growth prediction, goal setting, and control strategy formulationall based on environmental and biological data.○ A total of 52 teams and 275 individuals participated in the competition. Following preliminary testing, a hackathon, and presentation evaluations, four finalist teams competed over a six-month period in the final round focused on greenhouse strawberries. As a result, the Hanbat National University DfX team secured second place, earning the Top Excellence Award.□ Led by undergraduate student Jo Min-seo, team DfXcomprised of masters students Song Chan-ho and Yu Tae-won, and doctoral student Lee Dong-jin applied their self-developed AI control model to manage strawberry growth and environmental conditions at a smart greenhouse in Wanju, Jeonbuk, during the finals.○ The team received high marks for implementing a cultivation strategy AI model that integrates sensor and image data to set target growth states on a daily, weekly, and monthly basis. By precisely controlling the greenhouse environment accordingly, they succeeded in harvesting high-quality strawberries with relatively low energy consumption.□ Professor Lee Hyun-bin from the Department of Computer Engineering stated, "This competition provided a powerful motivation for our students by confirming that their research results could directly address labor shortages in the agricultural field." He added, "I would like to express my deep gratitude to the organizers of the Smart Agriculture AI Competition for providing this platform and for their dedicated efforts in monitoring the systems and crops around the clock, even on holidays, for several months.□ The Smart Farm research team at Hanbat National University's DfX Lab is focusing on agricultural labor automation. Their work involves developing agricultural task guidance systems that predict and notify workers of necessary actions during crop growth or in response to abnormal conditions. Furthermore, the team is advancing the development of agricultural mobile robots, robotic arm control, and specialized robotic hand structures designed for specific farming tasks.
  • 등록일2026-02-20 17:01:24
Professor Kim Jung-hyun’s Research Team(Department of Materials Science and Engineering) Identifies Composition-Performance Correlation in Cathodes for Symmetric Solid Ox 이미지
Professor Kim Jung-hyun’s Research Team(Department of Materials Science and Engineering) Identifies Composition-Performance Correlation in Cathodes for Symmetric Solid Ox
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  • Photo Caption: (Clockwise from top left) Lim Yu-ri (Graduate Student, Dept. of Applied Materials Engineering, Hanbat National University), Dr. Harald Schlegl (Lancaster University), Prof. Abul Kalam Azad (University of Brunei Darussalam), Kang In-yong (CEO of HnPower), Prof. Choi Won-seok (Dept. of Electrical Engineering, Hanbat National University), and Prof. Kim Jung-hyun (Dept. of Materials Science and Engineering, Hanbat National University)□ A research team led by Professor Kim Jeong-hyun from the Department of Materials Science and Engineering announced the results of a study that systematically analyzed and identified the correlation between manganese (Mn) substitution ratios and the electrochemical performance, electrical conductivity, and structural stability of Cobalt-free (Co-free) xss-layered perovskite electrode materials applicable to Symmetrical Solid Oxide Fuel Cells (SSOFCs).○ While conventional Solid Oxide Fuel Cells (SOFCs) have limitations in that different materials must be used for the cathode and anode, the research team proposed Symmetrical Solid Oxide Fuel Cells (SSOFCs) that can operate in both oxidizing and reducing atmospheres with a single electrode material.○ Masters student Lim Yu-ri participated as the lead author of this study. The research was published online on the 30th in Ceramics International, a prestigious international journal in the field of materials science, under the title "Electrochemical properties of xss-layered perovskite for the electrode of symmetrical solid oxide fuel cells."○ The research team synthesized xss-layered perovskite oxides with compositions of SmBa(Fe1-xMnx)2O5+d(X=0, 0.1, 0.3, 0.5) and analyzed their electrochemical impedance characteristics in both air and hydrogen atmospheres using an LSGM (LaGaO3-based material) electrolyte-based half-cell.○ Consequently, the SmBa(Fe0.9Mn0.1)2O5+d composition exhibited a lower area-specific resistance (ASR) compared to the reference compositions across the entire temperature range, demonstrating relatively balanced electrode reaction characteristics in both air and hydrogen atmospheres."○ Furthermore, electrical conductivity measurements revealed that conductivity tended to decrease with increasing Mn content in both air and nitrogen atmospheres. This trend was confirmed to be associated with a reduction in orbital overlap and changes in hole concentration resulting from Mn substitution compared to the FeOFe bonds.○ In contrast, it was confirmed that a small amount of Mn substitution (X=0.1) contributed to an enhancement in electrical conductivity under a hydrogen atmosphere. Furthermore, an abrupt decrease in conductivity was observed at approximately 450C during the initial heating process.○ X-ray diffraction (XRD) analysis confirmed a structural transition from cubic to orthorhombic occurring exclusively under a reducing atmosphere within that temperature range. This reveals that the structural transformation is a key factor directly linked to the observed changes in conductivity○ Subsequently, the electrical conductivity increased again in the high-temperature region. It was also confirmed that both the structural and electrical properties remained stable during repeated thermal cycling experiments.□ Professor Kim Jung-hyun from the Department of Materials Science and Engineering emphasized, "Through this study, we were able to systematically identify the effects of adjusting the Fe/Mn substitution ratio on the electrochemical performance, electrical conductivity, and structural stability of xss-layered perovskite electrodes." He further noted, "The core achievement of this research is confirming that a minor Mn substitution enables balanced performance for both oxygen reduction and hydrogen oxidation reactions, making it a viable symmetrical SOFC electrode capable of operating in both oxidizing and reducing atmospheres."○ First author Lim Yuri, a masters student, stated, The electrical conductivity and electrode reaction characteristics exhibited distinct changes depending on the Fe/Mn substitution ratio. A significant result of this study is the experimental elucidation of the correlation between structural transitions and conductivity changes occurring specifically in a reducing atmosphere. She added, These analytical results provide valuable design guidelines for optimizing electrode compositions in symmetrical solid oxide fuel cells (S-SOFCs).□ This work was a collaborative effort involving Hanbat National University, Lancaster University, HnPower Co., Ltd., and the University of Brunei Darussalam. The research was supported by the Ministry of Science and ICT (MSIT) under the 'Chungcheong Region Distributed Energy Response Energy Technology Sharing University' program (No. RS-2024-00394769), and the Basic Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (No. RS-2024-00464727).
  • 등록일2026-02-05 17:04:48