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Preparation of UV-curable alginate derivatives for drug immobilization on dressing foam
Kim, Jae-Won,Kim, Eun-Hye,Han, Ga-Dug,Noh, Seung-Hyun,Pyun, Do-Gi,Ito, Yoshihiro,Nah, Jae-Woon,Lee, Jae-Gwan,Son, Tae-Il Elsevier 2017 Journal of industrial and engineering chemistry Vol.54 No.-
<P><B>Abstract</B></P> <P>The purpose of this study was to develop dressing foam with drug immobilization abilities by using Azidophenyl alginate (Az-alginate). We characterized prepared Az-alginate. Through the patterning test, immobilization of drug was confirmed. Degrees of photo-curing were identified by the photo-curing ratio test. Cytotoxicity test confirmed that Az-alginate was biocompatible. The protein releasing test measured the degree of drug released according to the concentration of Az-alginate. By examination of the water absorbency and moisture vapor transmission rate, characteristics of the dressing foam with photo-cured Az-alginate were measured. From the results of these tests, Az-alginate can be applied to the dressing foam.</P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
Byeong Gwan Noh,박영목,Jung Bum Choi,Byoung Chul Lee,Sang Su Lee,Hyuk Jae Jung 대한혈관외과학회 2020 Vascular Specialist International Vol.36 No.4
Purpose: The number of infrapopliteal runoff vessels seems to be one of the factorsinfluencing arterial patency in patients who had undergone superficial femoralartery (SFA) angioplasty with stenting. However, the effectiveness of infrapoplitealrunoff vessels in predicting patency during SFA angioplasty remains unclear. Thisstudy aimed to determine whether the number and quality of infrapopliteal runoffvessels affect the primary patency after SFA angioplasty with stenting in patientswith claudication. Materials and Methods: This study reviewed a retrospective database of patientswith claudication who underwent SFA angioplasty with stenting between March2011 and December 2016. The preoperative computed tomography findings of allpatients were reviewed to assess infrapopliteal runoff vessels. The Trans-AtlanticInter-Society (TASC) II classification and modified Society for Vascular Surgery (SVS)runoff score were used for subsequent analysis. Kaplan–Meier survival curves wereconstructed, and Fisher’s exact and chi-square tests were used for data analysis. Results: A total of 153 limbs of 122 patients (88.2% male, mean age: 69.1 years)underwent SFA angioplasty with stenting. The overall primary patency rates ofTASC II A/B and C/D cases were 77.1% and 31.2%, respectively, at 36 months(P<0.001). The primary patency rates at 36 months using the modified SVS runoffscoring system were 64.6% and 49.8% for the good-to-compromised (≤9 points)and poor (≥10 points) runoff groups, respectively (P=0.011). Conclusion: The modified SVS runoff scoring system is effective in predicting primarypatency after SFA angioplasty with stenting in patients treated for claudication.
재폐로차단기간 보호협조 동작시 초전도한류기 적용위치 및 임피던스에 따른 순간저전압 분석
김이관(Yi-Gwan Kim),노신의(Shin-Eui Noh),김진석(Jin-Seok Kim),김재철(Jae-Chul Kim),임성훈(Sung-Hun Lim),김혜림(Hye-Rim Kim) 대한전기학회 2014 전기학회논문지 Vol.63 No.2
Superconducting fault current limiter (SFCL) has been expected as one of more effective solutions for decreasing fault current instantaneously and various types of SFCLs have been developed to apply into real power system. Recently, the application of the SFCL in a power distribution system has been reported to be contributed to the suppression of the voltage sag as well as the limitation of the fault current. However, the suppressing effect of voltage sag by the SFCL depends on component of its impedance and its application location in a power distribution system considering the recloser-recloser coordination. This paper analyzed the voltage sag caused by recloser-recloser coordination in a power distribution system and the suppression of the voltage sag due to the application location of the SFCL in a power distribution system was discussed through the PSCAD/EMTDC simulation.
해상에서 소형 객체 인식을 위한 데이터 전처리 방안 연구
김기관(Gi-Gwan Kim),노천명(Chun-Myoung Noh),이수봉(Su-Bong Lee),이순섭(Soon-Sup Lee),이재철(Jae-Chul Lee) (사)한국CDE학회 2021 한국CDE학회 논문집 Vol.26 No.4
Implementing good performance deep learning requires a large amount of high-quality data. However, in areas where the amount of data is limited, data collection takes a lot of time and cost. This study attempts to detect small object-sized submarine masts based on the environmental characteristics of the sea, which limit data collection and reduce the amount and quality of data due to the characteristics of submarine data used in the study. This study aims to improve recognition performance through preprocessing techniques with a small amount of data, and it can be seen that recognition performance has improved based on mAP.