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김재현(Jaehyeon Kim),김유신(Yushin Kim),이세종(Sejong Lee),안세영(Seyoung Ahn),노재원(Jaewon Noh),김종훈(Jonghun Kim),조성현(Sunghyun Cho) 대한전자공학회 2021 대한전자공학회 학술대회 Vol.2021 No.6
Artificial intelligence is being used in a variety of fields, including medicine. But their lack of interpretability and explainability stand as one of the main drawbacks. To solve this problem, explainable artificial intelligence has been studied in healthcare. In this paper, we summarize recent advances in explainable artificial intelligence technologies and introduce the use of explainable artificial intelligence studies in medicine.
환형연소기에서의 음향적 불안정성에 관하여 당량비 변화를 통한 대칭성 파괴의 효과
김재현(Jaehyeon Kim),이희도(Huido Lee),이기만(Keeman Lee) 한국연소학회 2019 KOSCOSYMPOSIUM논문집 Vol.2019 No.11
The annular combustor, which is used in this study, is consisted of eight nozzles and can supply mixture of different conditions through chambers of first stage and second stage. For the combustor length of 150 mm, spinning mode is observed in condition of all equivalence ratio of 0.65(first stage = 0.65, second stage = 0.65). However, in condition of changed equivalence ratio(first stage = 0.6, second stage = 0.7), instability mode is longitudinal mode approximately.
김재현(Jaehyeon Kim),고민성(Minseong Ko),채수종(Sujong Chae) 한국전지학회 2023 한국전지학회지 Vol.3 No.2
In recent years, demands for high-performance lithium-ion batteries have increased along with the expansion of their usage. The high electrical conductivity of active materials is essential for lithium-ion batteries to provide stable and improved performance. However, metal oxides currently used as cathode materials suffer from stable operation due to the low electrical conductivity of ceramic materials. In this study, we tried to supplement the low electrical of cathode materials by introducing the carbonized pitch with high carbon contents and low cost, as a conductive material. Two types of pitch with different softening points were analyzed to investigate their suitability as conductive material. The pitch with a higher softening point showed better properties and improved initial charging/discharging efficiency by 29.2% when applied to commercial cathode electrodes with LiCoO₂.