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최민진,조정민,최영호,최민호,이춘수,성한기,이경실,박기훈,황세종,Choi, Min Jin,Cho, Jeong-Min,Choi, Young Ho,Choi, Min Ho,Lee, Choon Soo,Sung, Han Ki,Lee, Kyoung Sil,Park, Ki Hun,Hwang, Se Jong 한국화학공학회 2022 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.60 No.2
In this paper, paint-free metallic plastic material, polypropylene (PP) and acrylonitrile styrene acrylate (ASA) materials were investigated on the applications for bumper skid plate and outside mirror housing parts. In order to maximize metallic effect, type, size and content of aluminum pigment were optimized based on flop index. Hybrid aluminum pigments with different aspect ratios were used to conceal weld lines. By controlling the fluidity of the material, the flow mark problem, generated on the surface of the part, was resolved. We also investigated the surface defects of flow and weld lines by using the developed modeling and simulation.
미국 하원 FTA 표결과 대통령 외교정책: 미국-모로코, 미국-바레인, 미국-오만 FTA 사례를 중심으로
최민진 서울대학교 미국학연구소 2019 미국학 Vol.42 No.1
This study seeks to reveal why the U.S. House Democrats showed different levels of support in the voting of the U.S.-Morocco FTA, U.S.-Bahrain FTA, and U.S.-Oman FTA. Existing studies focusing on the constituency or members’ ideology do not properly account for the variance of these three FTA voting results. All of these FTAs, however, were promoted as a part of the president’s foreign policies. If so, FTA support in Congress could depend on representatives’ evaluation of the presidential foreign policy. Based on this, the study analyzes how representatives’ evaluation of President Bush’s foreign policy changed according to the period of the three FTA votes. The vote on the FTAs has been influenced by their evaluation of the presidential foreign and national security policies.
최민진(Min Jin Choi),조정민(Jeong-Min Cho),최영호(Young Ho Choi),최민호(Min Ho Choi),이춘수(Choon Soo Lee),성한기(Han Ki Sung),이경실(Kyoung Sil Lee),박기훈(Ki Hun Park),황세종(Se Jong Hwang) 한국자동차공학회 2020 한국자동차공학회 부문종합 학술대회 Vol.2020 No.7
In this paper, mold in color polypropylene (PP) and acrylonitrile styrene acrylate (ASA) materials were investigated on the applications for skid plate and outside mirror housing parts. In order to maximize the metallic effect,the type, size and content of aluminum pigment were optimized based on flop index. Hybrid aluminum pigments with different aspect ratios were used to conceal weld lines. By controlling the fluidity of the material,the flow mark problem, generated on the surface of the part, was resolved. We also investigated the surface defects of flow and weld lines by using the developed modeling and simulation.
언어-영상 사전 학습 모델 기반 샘플 선택을 활용한 노이즈 레이블 학습
차봉건,최민진,이종욱 한국정보과학회 2023 정보과학회논문지 Vol.50 No.6
심층신경망은 부정확한 레이블을 가진 데이터를 학습하는 경우 일반화 성능이 크게 저하되는 문제가 있다. 기존 연구는 모델이 학습 초기 단계에 정답 레이블을 가진 깨끗한 데이터를 주로 학습하는 경향을 관찰하였고, 이를 기반으로 손실 값이 작은 샘플을 깨끗한 데이터로 간주하여 데이터를 선별적으로 학습하는 샘플 선택 방법을 통해 성능을 개선하였다. 그러나 노이즈 레이블이 정답 레이블과 유사한 경우(예: 물개 vs 수달) 모델이 초기 학습 과정에서 노이즈 데이터를 빠르게 학습하여 샘플 선택 방법이 효과적이지 못한 한계가 있다. 본 논문에서는 사전 학습된 언어-영상 모델의 제로 샷 예측을 기반으로 모델의 초기 학습 과정 없이 깨끗한 데이터를 효과적으로 구분하여 학습하는 SLIP을 제안한다. 본 연구의 제안 모델은 CIFAR-10, CIFAR-100, WebVision 데이터셋에서 학습 결과 기존 제안 방법들 대비 최대 18.45%p 개선된 성능을 보인다.
중증도 분류 간호사에 의한 응급환자 중증도 분류 신뢰도 측정 연구: Emergency Severity Index Version 4를 중심으로
최희강,최민진,김주원,이지연,신선화,이현정,Choi, Hee Kang,Choi, Min Jin,Kim, Ju Won,Lee, Ji Yeon,Shin, Sun Hwa,Lee, Hyun Jung 한국중환자간호학회 2012 중환자간호학회지 Vol.5 No.2
Purpose: The aim of this study was to measure the inter-rater reliability of Emergency severity index (ESI) version 4 among triage nurse. Methods: This study was carried out from August 11, 2010 to September 7, 2010 in a regional emergency department. Data collection was done by ten triage nurses who trained ESI v.4. Two research nurses and ten triage nurses scored the ESI version 4 to the patients as references, independently. We calculated the weighted kappa between the triage nurses and research nurses to evaluate the consistency of the ESI v.4. Results: A total of 233 patients were enrolled in this study. Classification of ESI level was as follows - level 1 (0.4%), level 2 (21.0%), level 3 (67.8%), level 4 (9.4%), and level 5 (1.3%). Inter-rater reliability by weighted kappa was 0.79 (95% Confidence Interval= 0.74-0.83) and agreement rate was 87.1%. Under-triage rate by triage nurse was 6.0% and over-triage rate was 6.9%. Conclusion: For this study, inter-rater reliability was measured good level between triage nurses and research nurses in Korean single ED.