열전달 해석을 통한 스크롤 압축기 성능 개선

홍상욱,류호선,Hong, S. W.,Rew, H. S. 한국유체기계학회 2000 한국유체기계학회 논문집 Vol.3 No.4

Numerical analysis using three dimensional finite volume method for the discretization, adaptive grid method for the numerical accuracy, multiple rotating frame method for the rotating body and the standard $k-{\epsilon}$ model for the turbulent flow was performed to understand the heat transfer phenomena and to improve the efficiency of the scroll compressor. The temperature measurement was carried out under ARI condition. It was found that the fluid temperature in the compressor was predicted accurately while the temperature of the motor coil showed large discrepancy between the calculation and experiment due to the large anisotropy of the conductivity and non homogeneity. We found that the efficiency of the compressor depends on the inlet temperature of the compressing part and the flow pattern around the inlet region of the compressing part influences the inlet temperature due to high surface temperature of the main frame. The efficiency of the compressor using Coanda effect is higher than the previous one because the smooth suction at the inlet region of the compressing part leads to low heat transfer to the refrigerant of the compressor.

家族慣行意識에 관한 韓·日 비교연구

홍상욱 영남대학교 자원문제연구소 1991 資源問題硏究 Vol.10 No.-

This study aims to compare family consciousness of customs in Korea and Japan. The independent variable is the family factors effecting industrialization and the dependent variable is the family consciousness of customs. An index of a family's consciousness of customs include lodging consciousness with parents, family honor succeeding consciousness, parent's support consciousness and ancestor worship. The data for analysis were derived from questionaires administered to mothers who have childern in the 5th. 6th. grades of primary school and mothers who have childern in the 1st. and 2nd. grades of high school in Korea and Japan. The findings derived from the statistical analysis of the data were as follows. (1) Self- centered matrimony value and divorce value which are factors that promote industrialization in Japan are stronger than in Korea. (2) There is a significant difference of a family's consciousness of customs between Korea and Japan. The consciousness of lodging with parents, family consciousness of geneology and family honor in Korea are relatively stronger than in Japan. A son-centered consciousness in the succession to property, especially a preference the eldest son, is stronger in Korea than in Japan. Also there is a significant difference between Korea and Japan concerning ancestor worship. In this case, the tendency of Japan in this area is stronger than in Korea. (3) The relations between promoting /delaying factors of industrialization and the change of family customs are statistically significant in the differences between Korea and Japan. In the case of Korea, factors promoting industrialization are not developed sufficiently to have an effect family consciousness of customs.

韓·日 양국의 夫婦關係에 관한 비교연구

홍상욱 영남대학교 자원문제연구소 1991 資源問題硏究 Vol.10 No.-

This study aims to compare the conjugal relationships which create the internal structure of the husband and wife relationship. The independent variable is the family factors effecting industrialization, and the dependent variable is the conjugal relationship. An index of conjugal relationships include emotion, role and power structure. The data for analysis were derived from questionaires administered to mothers who have children in the 5th and 6th. grades of primary school, and mothers who have children in the 1st and 2nd, grades of high school in Korea and Japan. The findings derived from the statistical analysis of the data were as follows. 1. Emotional structure ; Generally there was a significant difference between Korea and Japan. At expectation level, the wife expects her husband to understand and comfort her about 90 percent of the time both in Korea and Japan. Yet they were satisfied with 70 percent at reality level. 2. Role structure ; There was a significant difference of children's discipline at reality level between Korea and Japan. Also there was a significant difference in representive roles of home, keeping doors in order in everyday living at expectation and reality level between Korea and Japan. Also there was a significant difference of role in relative relations at expectation levels between Korea and Japan. 3. Power structure ; The type in Korea was syncratic co-operation type, and Japan was husband-leadership type at the purchase of high price goods. It was wife-leadership at money management in usual life in both Korea and Japan. However in Japan the tendency was stronger than Korea.

가족연구에 있어서 문화적 가치지향의 한.일비교

홍상욱 한국가족학회 1990 家族學 論集 Vol.2 No.-

가구주분리가족 가구주의 스트레스가 부부의사소통에 미치는 영향

홍상욱 영남대학교 자원문제연구소 1994 資源問題硏究 Vol.13 No.-

This study aims to compare the husband's stress and need for conjugal understanding which contributes to the internal structure of the householder-separate family. The independent variable is physical those factors of the householer-separate family, and the dependent variables are the husband stress and conjugal understanding of each other. An index of a husband stress includes conjugal relationship, parent-child relationship, the husband's mental health and time-application. family consciousness and activities and home economics. The data for analysis were derived from questionaires administered to husbands whose career lives requires that they be separated from home and family. The findings derived from the statistical analysis of the data are as follows. (1) The longer the total period that they separate, the more the husband's stress in family consciousness and activity will come to dominate. (2) The more often the couple has visited each other during the past 3 months. the less the husband's stress in the domain of home economics. (3) The husband's stress effects on the conjugal understanding of each other. The more the husband's stress, the less conjugal relationship, the husband's mental health and time-application and family consciousness and activity will come to dominate.

학술 발표 논문 초록 / 지구과학교육분야 1 : 해석적인 과학 서술방식이 고등학생들의 과학철학적 관점에 미치는 영향

홍상욱,장명덕,정진우 한국지구과학회 2000 정기총회 및 추계학술발표 논문요약집 Vol.2000 No.-

노인건강운동과 삶의 질

홍상욱,박성희 한국생활과학회 2008 한국생활과학회 학술대회 Vol.2008 No.동계

특정 객체 필터링 및 이상동작 감지를 위한 통합 합성곱 신경망

홍상욱,김형원 한국통신학회 2023 韓國通信學會論文誌 Vol.48 No.8

이상 감지를 위한 합성곱 네트워크 모델로서 오토인코더[1,2,3] 네트워크가 많이 사용되고 있다. 오토인코더는입력 이미지를 기존에 학습한 이미지 데이터와 유사한 데이터로만 국한하여 출력 이미지를 재생성 하는 특성을가지고 있어서 입력 이미지 내의 이상 동작을 추출할 수 있는 장점이 있다[4]. 그러나 이러한 방법은 이미지내에정상적 객체나 상황이 불규칙적인 위치에 포함된 경우는 정상 또는 이상 동작으로 정확하게 감지하기 매우 어려운 단점이 있다. 이 문제를 개선하기 위해 오토인코더와 객체 분할 헤드를 동시에 가진[5] 통합 합성곱 신경망을제안한다. 본 제안 기술은 입력 이미지와 재생성 된 출력 이미지 내에서 정상 객체 영역을 제외하기 위한 객체마스킹을 통해 해당 객체가 불규칙적인 위치에 포함된 이미지에서도 정확도를 증가시킨다. 또한, 제안 기술은 통합 합성곱 신경망에 포함된오토인토더를 이용하여 마스킹 대상인 객체들의 라벨을 자동으로 생성하고[6] 객체 분할 모델을 학습시키는 비지도[7] 학습방법을 제안한다. 제안 통합 합성곱 신경망 모델을 스마트 팩토리에서 획득한 이상 동작 비디오 데이터셋에 적용하여 성능을 분석하였다. 통합 합성곱 신경망 모델에 포함된 객체 분할 모델의 마스크 mAP 비교 결과, 제안하는 의사 라벨링 기반의 비지도 학습 기술은 수작업으로 라벨 된 정답 데이터로테스트할 경우 96.82%의 마스크 mAP의 매우 높은 성능을 보인다. 또한 제안하는 통합 합성곱 신경망 모델은 정상과 비정상 객체가 공존하는 상황에서 기존의 오토인코더가 탐지하지 못하는 정상 객체에 대한 정확도를 증가시켜 전체적인 이상감지 정확도를 15.90% 향상시킨다.

대학병원종사자들의 직무특성이 직무스트레스, 직무대처방법, 직무만족도에 미치는 영향

홍상욱,최현숙,한영자 한국가족자원경영학회 2009 한국가족자원경영학회 학술대회논문집 Vol.2009 No.1

소비자 감성 분석을 통한 웹소설 분류

홍상욱 한국지능정보시스템학회 2023 한국지능정보시스템학회 학술대회논문집 Vol.2023 No.5