여러개의 단순 선형 회귀모형에서 순차기울기를 이용한 평행성 검정

김주희,김동재,Kim, Juhie,Kim, Dongjae 한국통계학회 2013 응용통계연구 Vol.26 No.6

회귀분석은 변수들간의 관계를 파악하는데 유용하게 사용된다. 여러개의 모집단을 비교할 때, 여러 모집단이 갖는 각각의 회귀직선의 기울기가 같은지 검정하는 것이 필요할 때가 있다. 본 논문에서는 순차기울기를 추정한 후 ANOVA의 F-검정법과 Kruskal-Wallis (1952)검정법을 이용한 방법을 각각 제안하였다. 또한, 몬테카를로 모의시험 연구를 통해 본 논문에서 제안한 두 가지 방법과 Park과 Kim (2009)이 제안한 기존 방법의 검정력을 비교하였다. Regression analysis is useful to understand the relationship of variables; however, we need to test if the slope of each regression lines is the same when comparing several populations. This paper suggests a new parallelism test for several linear regression lines. We use F-test of ANOVA and Kruskal-Wallis (1952) tests after obtaining slope estimator from a sequential slope. In addition, a Monte Carlo simulation study is adapted to compare the power of the proposed methods with those of Park and Kim (2009).

미디어 퍼포먼스 「마담 프리덤」에 나타난 주인공 여성의 재현과 그 의미

김주희(연구원,조교수) ( Ju-hee Kim ),김현정(연구원,조교수) ( Hyun Jung Kim ) 대한무용학회 2016 대한무용학회논문집 Vol.74 No.3

This paper explores meanings of a main female character in Madame Freedom (2013), a media performance of Hyo-jin Kim and Hyung-su Kim. This research investigates characteristics of the heroine in its original novel and movie; and examines what the roles of dances and media workings are respectively and what the choreographer utilizes the original works in Madame Freedom. This paper argues that the media work shows a Korean housewife``s passion, sexuality & freedom; ambivalent interpretations; and strategic reconstruction of particularity and universality. These provide a way to produce diverse interpretations by exploring complex relations of novel, movie, and media performance.

Do High Ratings Signal a Good Movie? An Empirical Investigation of Signaling Effectiveness

김주희,남대일,Kim, Juhee,Nam, Dae-il The Korean Society of Business Venturing 2018 벤처창업연구 Vol.13 No.3

본 연구는 전문가와 일반인 관객의 평가가 영화 흥행성과에 미치는 영향을 신호 이론(Signaling Theory)과 정보 비대칭(Information Asymmetry) 논의를 기반으로 실증 분석하였다. 영화에 대한 평가가 영화 흥행 성과에 대한 기존 연구는 주로 전문가나 일반인 관객 중 한 주체의 평가에만 중점을 두어 이들의 효과에 대해 설명함으로써 신호의 효과성(Signaling effectiveness)를 검증하는 데에는 다소 미흡한 점이 있었다. 또한 시간이 지남에 따라 변화하는 영화 평가의 추이에 대해서는 분석이 제대로 이루어지고 있지 않아, 영화 평점의 신호 효과성을 깊이 있게 밝히는 데에는 제한적이었다. 따라서 본 연구는 1) 전문가 평가와 일반인 평가의 차이점과 2) 시간의 흐름에 따른 평가의 변화의 추이가 영화 성과에 영향을 미칠 것으로 보고 이들 간의 관계를 밝히고자 하였다. 이를 위하여, 영화진흥위원회와 네이버를 토대로 2003년부터 2012년까지 개봉했던 1,141개 한국 영화 데이터와 이들에 대한 평점을 수집하여 분석을 실시하였다. 실증 분석 결과, 영화 개봉 전 전문가의 평가는 영화 흥행 성적에 영향을 미치지 않으며, 개봉 후에는 일반인의 평가가 전문가의 평가보다 영화 성과에 긍정적인 영향을 미치는 것으로 나타났다. 또한 시간이 지남에 따라 영화에 대한 긍정적인 평가가 증가할수록 영화 흥행 성적은 향상되는 것을 보여주었다. The objective of this study is to examine the effectiveness of signals and advancing our understanding of the relationship between ratings and audience decisions based on the signaling theory. Though many studies argue that information asymmetry affects decision making, few studies have examined two key signaling factors: its potential to have multiple sources and the effect of time on its effectiveness. This study examined how experts' and the general audience's ratings affect decision making. We also considered change patterns in ratings to explore how time effect on ratings affect selection behavior. We tested our hypotheses using the latent growth model based on signaling theory and behavior approaches. The results show that a general audience's ratings is perceived as more credible than are those of experts and that audience members are significantly affected by upward patterns in ratings. The findings suggest that general audiences play a critical role as signal providers. Thus, market participants such as producers should pay more attention to the general audience's ratings in order to increase revenues. They should also consider the time effect of signaling, such as upward trends in ratings.

유무연 용융도금 리본에 따른 결정질 실리콘 태양전지 모듈 열화거동

김주희,김아영,박노창,하정원,이상권,홍원식,Kim, Ju-Hee,Kim, A Yong,Park, Nochang,Ha, Jeong Won,Lee, Sang Guon,Hong, Won Sik 대한용접접합학회 2014 대한용접·접합학회지 Vol.32 No.6

Usage of heavy metal element (Pb, Hg and Cd etc.) in electronic devices have been restricted due to the environmental banning of the European Union, such as WEEE and RoHS. Therefore, it is needed to develop the Pb-free solder plated ribbon in photovoltaic (PV) module. This study described that degradation characteristics of PV module under damp heat (DH, $85^{\circ}C$ and 85% R.H.) condition test for 1,000 h. Solar cell ribbons were utilized to hot dipping plate with Pb-free solder alloys. Two types of Pb-free solder plated ribbons, Sn-3.0Ag-0.5Cu (SAC305) and Sn-48Bi-2Ag, and an electroless Sn-40Pb solder hot dipping plated ribbon as a reference sample were prepared to evaluate degradation characteristics. To detect the degradation of PV module with the eutectic and Pb-free solder plated ribbons, I-V curve, electro-luminescence (EL) and cross-sectional SEM analysis were carried out. DH test results show that the reason of maximum power (Pm) drop was mainly due to the decrease fill factor (FF). It was attributed to the crack or oxidation of interface between the cell and the ribbon. Among PV modules with the eutectic and Pb-free solder plated ribbon, the PV module with SAC305 ribbon relatively showed higher stability after DH test than the case of PV module with Sn-40Pb and Sn-48Bi-2Ag solder plated ribbons.

정신적 면에서 본 폐결핵 환자와 그 간호

김주희,Kim Chu Hi 대한간호협회 1963 대한간호 Vol.8 No.-

이탈된 위루관에 대한 투시경하 변형 Seldinger씨 방법을 이용한 경피적 위루관 재삽입술

김주희,김성민,오정탁,최승훈,황의호,한석주,Kim, Joo-Hee,Kim, Seong-Min,Oh, Jung-Tak,Choi, Seung-Hoon,Hwang, Eu-Ho,Han, Seok-Joo 대한소아외과학회 2006 소아외과 Vol.12 No.2

This case report describes a baby who received a laparoscopic gastrostomy tube insertion, which was dislodged accidentally at $16^{th}$ postoperative day. After the dislodgement, cutaneous tract rapidly closed, and reinsertion seemed to be impossible. However, gastrostomy tube was reinserted safely with fluoroscopy-guided Seldinger's technique under local anesthesia with sedation. This is the unique method of modified Seldinger's technique for reinsertion of gastrostomy tube under local anesthesia and sedation for accidentally dislodged gastrostomy tube. This method was thought to be safe, easy and useful technique for gastrostomy reinsertion after dislodgement of gastrostomy tube.

대합 조건에 따른 임플란트 주변 골밀도 변화에 대한 프랙탈 구조 분석

김주희,이재인,Kim, Ju-Hee,Lee, Jae-In 대한치과보철학회 2016 대한치과보철학회지 Vol.54 No.1

목적: 본 연구의 목적은 임플란트와 대합되는 부분의 상태에 따라서 임플란트 주위 골조직 변화에 차이가 있는지 알아보기 위함이다. 대상 및 방법: 원광대학교 대전치과병원에서 임플란트 식립을 받은 51명의 환자를 대상으로 하였고 총 51개의 임플란트가 분석에 사용되었다. 임플란트는 성별, 나이, 악골 위치, 환자의 대합되는 부위에 따라서 분류되었고 대합되는 부위는 자연치, 임플란트, 가공치, 무치악의 네 집단으로 나뉘었다. 프랙탈 분석을 위해 임플란트 식립 직후의 치근단 사진과 보철 수복 이후 10주 이상이 지난 치근단 사진이 사용되었다. 분석은 Image J를 이용하여 시행하였다. 통계학적 분석은 one-way ANOVA를 이용하여 시행하였고 Tukey multiple comparison test로 사후검정을 실시하였다. 결과: 임플란트의 보철수복 전후 프랙탈 값 차이의 평균은 자연치가 대합되는 경우 $0.009{\pm}0.048$이었으며 임플란트의 경우 $0.026{\pm}0.080$, 가공치의 경우에 $-0.025{\pm}0.068$이었으며 무치악은 $-0.093{\pm}0.171$으로 나타났다. 대합되는 부위가 무치악일 때와 임플란트일 때에 통계학적으로 유의한 차이가 나타났으며 나이와 성별, 악골 위치에 따른 프랙탈 수치 변화 차이는 통계적으로 유의하지 않았다. 결론: 임플란트 식립 후 대합되는 부위가 무치악일 때를 제외한 세 집단간 프랙탈 수치 변화 차이는 유의하게 나타나지 않았으며, 대합되는 부위가 무치악일 때와 임플란트일 때 유의한 차이가 나타났다. 그리고 환자의 나이와 성별, 악골의 위치에 따른 프랙탈 수치 변화 차이는 유의한 차이를 나타내지 않았다. Purpose: The aim of this study was to know whether there is significant difference of peri-implant bone density according to the state of antagonist region. Materials and methods: 51 patients who had implant operation in Daejeon Dental Hospital of Wonkwang University participated in this study and total of 51 implants were analyzed. Implants were classified depending on opposing antagonist region, gender, age and location of jaw. The opposing antagonist region was divided into four groups; natural tooth, implant, pontic and edentulous region. Fractal analysis was performed using two periapical radiographs; one after implant placement and the other after 10 weeks following prosthetic restoration. The analysis was done by Image J. The data was statistically analyzed using one-way ANOVA and Tukey multiple comparison test. Results: The mean value of fractal difference was $0.009{\pm}0.048$ with opposing natural tooth, $0.026{\pm}0.080$ with opposing implant, $0.025{\pm}0.068$ with opposing pontic and $0.093{\pm}0.171$ with opposing edentulous area. There was a statistically significant difference in fractal value between opposing implant and opposing edentulous state. And there was no statistically significant difference according to age, gender and location of jaw. Conclusion: There was no statistically significant difference between 3 groups except opposing edentulous region and there was a statistically significant difference between opposing implant and edentulous region. And there was no statistically significant difference according to age, gender and location of jaw.

우리나라 부부의 영구피임 결정요인

김주희,이선미,서문희,강대룡,정우진,Kim, Ju-Hee,Lee, Sun-Mi,Suh, Moon-Hee,Kang, Dae-Ryong,Chung, Woo-Jin 대한예방의학회 2007 예방의학회지 Vol.40 No.6

Objectives : The purpose of this study was to examine the determinants of sterilization in South Korea. Methods : This study was based on the data from the Korea National Fertility Survey carried out in the year 2000 by the Korea Institute of Health and Social Affairs. The subjects of the analysis were 4,604 women and their husbands who were in their first marriage, in the age group of 15-49 years. The data were analyzed by multiple logistic regression analysis. Results : Consistent with the findings of previous studies, the woman#s age and the number of total children increased the likelihood of sterilization. In addition, the year of marriage had a strong positive association with sterilization. Interestingly, the number of surviving sons tended to increase the likelihood of sterilization, whereas the woman#s education level and age at the time of marriage showed a negative association with sterilization. Religion, place of residence, son preference, and the husband#s education level, age and type of occupation were not significant determinants of sterilization. Conclusions : The sex of previous children and lower level of education are distinct determinants of sterilization among women in South Korea. More studies are needed in order to determine the associations between sterilization rate and decreased fertility.

지방전구세포와 고지방식이비만마우스에서 가미곽향정기산의 전탕액과 발효액의 항비만효과

김주희,박은정,Kim, Ju Hee,Park, Eun Jung 대한한방소아과학회 2015 대한한방소아과학회지 Vol.29 No.2

Objectives This experimental study was designed to investigate the antiobese effects of Gamikwakhyangjungkisan and Fermented GamiKwakhyangjungkisan. Methods The cellular lipid contents were assessed by Oil-Red-O staining. The expression of $PPAR{\gamma}$ and $C/EBP{\alpha}$ were determined by real time RT-PCR and western blotting. In addition, body weight gain and serum lipid levels were measured in the mice with obesity induced by the high fat-diet for four weeks. Results Gamikwakhyangjungkisan and Fermented GamiKwakhyangjungkisan is reduced 3T3-L1 cells' differentiation and the expressions of $PPAR{\gamma}$ and $C/EBP{\alpha}$ in high concentration group. High-fat diet + Fermented GamiKwakhyangjungkisan group significantly reduced body weight gain. High-fat diet + Fermented GamiKwakhyangjungkisan group significantly increased HDL-cholesterol contents and reduced LDL-cholesterol contents. Furthermore, Fermented GamiKwakhyangjungkisan is excellent antiobese effects than Gamikwakhyangjungkisan. Conclusions These results demonstrate that Gamikwakhyangjungkisan and Fermented GamiKwakhyangjungkisan exerts antiobese effect in 3T3-L1 cells and mice fed high fat diet. Furthermore, Fermented GamiKwakhyangjungkisan is excellent antiobese effects than Gamikwakhyangjungkisan.

IP TV/멀티캐스트 관리 기술

김주희,김기응,Kim, Ju-Hui,Kim, Gi-Eung 대한전자공학회 2006 전자공학회지 Vol.33 No.12

IPTV 서비스는 통신/방송 융합서비스로서 데이터 스티림이 송출되는 H/E 센터로부터 QoS 가 보장되는 IP망을 통해 디지털 영상 방송이나 양방향서비스를 가입자 단말까지 제공하는 서비스이다. 본 고에서는 IPTV서비스를 제공하기 위한 Network 요구조건에 대해 설명하고, IPTV 서비스와 같은 1:n 통신에 적합한 멀티캐스트 기술 및 프로토콜에 대해 살펴본다. 이와 아울러 데이터 스트림을 송출하는 헤드엔드센터 내의 시스템에 대해 알아본 후 마지막으로 향후 해결해야 할 IPTV 관련 중요한 이슈사항에 대해 언급한다.