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Noh, Ho-Sung,Son, Ji-Won,Lee, Heon,Kim, Hae-Ryoung,Lee, Jong-Ho,Lee, Hae-Weon The Korean Ceramic Society 2010 한국세라믹학회지 Vol.47 No.1
The feasibility of using the thin film technology in utilizing lanthanum strontium manganite (LSM) for a solid oxide fuel cell (SOFC) cathode in a low-temperature regime is investigated in this study. Thin film LSM cathodes were fabricated using pulsed laser deposition (PLD) on anode-supported SOFCs with yttria-stabilized zirconia (YSZ) electrolytes. Although cells with a 1 ${\mu}m$-thick LSM cathode showed poor low-temperature cell performance compared to that of a cell with a bulk-processed cathode due to the lack of a triple-phase boundary length, the cell with 200 nm-thick gadolinia-doped ceria (GDC) inserted between the LSM and YSZ showed enhanced performance and more stable operation characteristics in a comparison of a cell without a GDC layer. We postulate that the GDC layer likely improved the cathode adhesion, therefore contributing to the improvement of the cell performance instead of serving as an interfacial reaction buffer.
Noh, Ho-Sung,Yoon, Kyung Joong,Kim, Byung-Kook,Je, Hae-June,Lee, Hae-Weon,Lee, Jong-Ho,Son, Ji-Won The Electrochemical Society 2013 ECS transactions Vol.57 No.1
<P>Thin-film electrolytes and nano-structure electrodes are essential components to lower the operation temperature of SOFCs. We will discuss how to precisely assess the impact of the thin-film electrolyte and the nano-structure electrodes which are realized on the anode supports, a realistic SOFC platform (anode-supported TF-SOFC). A peak power density over 500 mWcm<SUP>-2</SUP> at 500 <SUP>o</SUP>C is obtained, which we believe is nearing the highest level that the SOFC can reach while using the common SOFC materials and platforms, by changing the dimension of the cell components. The potential and limitations of anode-supported TF-SOFCs in achieving the critical low-temperature performance will be discussed.</P>
Hae-Chan Han,Tae-Won Noh,Byoung Kuk Lee 전력전자학회 2019 ICPE(ISPE)논문집 Vol.2019 No.5
This paper compares and analyzes online update techniques which estimate the parameters of battery equivalent circuit model in real time. Online update techniques, which are based on Extended Kalman Filter (EKF) and Recursive Least Square (RLS) methods, are constructed by considering dynamic characteristics of the battery. Each online update technique is compared in terms of complexity and accuracy in order to propose a suitable guide for selecting algorithms on various types of battery applications and the performance of the techniques is verified by simulation and experimental results.
Liquid biopsy using cfDNA to predict radiation therapy response in solid tumors
Won Kyung Cho(Won Kyung Cho),Junnam Lee(Junnam Lee),Sung-Min Youn(Sung-Min Youn),Dongryul Oh(Dongryul Oh),Do Hoon Lim(Do Hoon Lim),Han Gyul Yoon(Han Gyul Yoon),Eun-Hae Cho(Eun-Hae Cho),Jae Myoung Noh( 대한방사선종양학회 2023 Radiation Oncology Journal Vol.41 No.1
Purpose: This study explored the potential feasibility of cell-free DNA (cfDNA) in monitoring treatment response through the measurement of chromosomal instabilities using I-scores in the context of radiation therapy (RT) for other solid tumors. Materials and Methods: This study enrolled 23 patients treated with RT for lung, esophageal, and head and neck cancer. Serial cfDNA monitoring was performed before RT, 1 week after RT, and 1 month after RT. Low-depth whole-genome sequencing was done using Nano kit and NextSeq 500 (Illumina Inc.). To measure the extent of genome-wide copy number instability, I-score was calculated. Results: Pretreatment I-score was elevated to more than 5.09 in 17 patients (73.9%). There was a significant positive correlation between the gross tumor volume and the baseline I-score (Spearman rho = 0.419, p = 0.047). The median I-scores at baseline, post-RT 1 week (P1W), and post-RT 1 month (P1M) were 5.27, 5.13, and 4.79, respectively. The I-score at P1M was significantly lower than that at baseline (p = 0.002), while the difference between baseline and P1W was not significant (p = 0.244). Conclusion: We have shown the feasibility of cfDNA I-score to detect minimal residual disease after RT in patients with lung cancer, esophageal cancer, and head and neck cancer. Additional studies are ongoing to optimize the measurement and analysis of I-scores to predict the radiation response in cancer patients.
Bilateral Oculomotor Nerve Palsy after Head Trauma: A Case Report
( Hae Won Noh ),( Jae Young Song ),( Jong Hyun Kim ),( Jang Hun Kim ) 대한외상학회 2017 大韓外傷學會誌 Vol.30 No.2
We introduce a patient who was suffered from isolated traumatic bilateral oculomotor nerve palsy after head trauma. The patient presented with bilateral ptosis and abnormal pupilary responses with slightly drowsy mentality at first. Performed images demonstrated some hematomas along subarachnoid, intraventricular, subdural spaces and multiple small supratentorial contusions. There was no bony abnormality or ligament injury. We assumed that small amount of interpeduncular hematoma might be the proper lesion associated with oculomotor nerve palsies, since the clinical symptom and signs presented bilaterally and the oculomotor neural fascicles run through the interpeduncular fossa. [ J Trauma Inj 2017; 30: 66-69 ]