인상채득 방법이 임플란트 보철 작업모형의 정확도에 미치는 영향

홍은희,한동후,Hong Eun-Hee,Han Dong-Hoo 대한치과보철학회 1994 대한치과보철학회지 Vol.32 No.3

Osseointegrated implant prostheses are to provide normal function without compromising the unique interaction between the tissue and the implant. The essential requirement for the osseointegrated implant prostheses is passive fit of abutment. Therefore, the impression must be accurate and reproduciable since the resultant master cast precisely duplicates the clinical condition. The purpose of this study was to compare the accuracy of the master casts obtained from five impression techniques. Group 1 : To take impression with indirect technique and Impregum F. Group 2 : To take impression with unsplinted direct technique and Impregum F. Group 3 : To take impression with splinted direct technique and Impregum F. Group 4 : To take impression with unsplinted direct technique and Xanthano. Group 5 : To take impression with splinted dierct technique and Xanthano. The results were as follow : 1. In taking impression of Impregum F, there was no significant difference between to use of indirect technique and unsplinted direct technique.(p<0.05) 2. Unsplinted direct technique with Impregum F is less accurate than splinted direct technique with Impregum F or Xanthano and unsplinted direct technique with Xanthano.(p<0.05). 3. There was no significant difference between splinted direct technique with Impregum F and unsplinted direct technique with Xanthano.(p<0.05) 4. Splinted direct technique reproduce more accurate than unsplinted direct technique.(p<0.05) 5. Impression plaster produced less distortion than polyether.(p<0.05) As a result, splinted direct technique with Xanthano was the most accurate technique. As a result, splinted direct technique with Xanthano was the most accurate technique in this study. In addition to dimensinal changes in the materials used, positional errors were also attributed to the mechanical components used in the transfer porocess. Although the errors measured were relatively small, this study demonstrates the potential for distortions with the transfer technique used. Further study is indicated that ?the technique will be able to reproduce the intraoral relationship of implant fixtures reliably and predictably.

로버스트 선형혼합모형을 이용한 필드시험 데이터 분석

홍은희,이영조,옥유진,나명환,노맹석,하일도,Hong, Eun Hee,Lee, Youngjo,Ok, You Jin,Na, Myung Hwan,Noh, Maengseok,Ha, Il Do 한국통계학회 2015 응용통계연구 Vol.28 No.2

연속측도의 반응변수가 반복측정된 실험 자료의 분석을 위해 흔히 선형혼합모형이 사용된다. 그러나, 잔차의 분포가 이분산성이거나 비정규성을 가질 때 표준적인 선형혼합모형은 적절하지 않은 결과를 가져온다. 잔차의 분포가 두터운 꼬리를 가진 비정규분포를 보이는 타이어 필드시험 데이터를 로버스트 선형혼합모형에 적합시킴으로써 보다 더 정확하고 신뢰할 수 있는 분석결과를 얻을 수 있다. 추가적으로 신뢰성 분석 결과를 제시한다. A general linear mixed-effects model is often used to analyze repeated measurement experiment data of a continuous response variable. However, a general linear mixed-effects model can give improper analysis results when simultaneously detecting heteroscedasticity and the non-normality of population distribution. To achieve a more robust estimation, we used a heavy-tailed linear mixed-effects model for a more exact and reliable analysis conclusion than a general linear mixed-effects model. We also provide reliability analysis results for further research.

체크무늬 Shirts의 Marking 효율성에 관한 연구

홍은희 ( Eun Hee Hong ),서미아 ( Mi A Suh ) 服飾文化學會 2009 服飾文化硏究 Vol.17 No.5

청소년기 남학생의 하반신 체형에 따른 하의 치수 규격 연구

홍은희 ( Eun Hee Hong ),서미아 ( Mi A Suh ) 服飾文化學會 2008 服飾文化硏究 Vol.16 No.6

3D 체표면 분할 전개방법에 의한 성인 남성 밀착원형 설계

홍은희 ( Eun-hee Hong ) 복식문화학회 2020 服飾文化硏究 Vol.28 No.1

This study is based on a representative body shape drawn from previous studies that classify adult male torso shapes. In this study, a design method is proposed by developing a tight-fit pattern that can be easily developed into various items and designs using the body surface development figure. This is obtained by converting the 3D body shape of the model representing the representative body shape. The specific design method was conducted as follows. Actual measurement values were used for waist back length, waist-to-hip length, shoulder length. The scye depth was determined as C/4-1.7 cm, and the front and back Interscye was set at (1/2 × actual measurements)-0.2 cm. The front-back neck breadth was set to (1/5 × base neck circumference)-1.3 cm and (1/5 × base neck circumference) cm. The front-back neck depth was set to (1/5 × base neck circumference)-1.2 cm and 3.5 cm. Front chest circumference was C/4-1 (front-back difference)cm; (1/4 × back chest circumference) was C/4 + 1 (front-back difference) + 0.3 (dart amount) cm. Front waist circumference was W/4-0.2 (front-back difference) + 2.2 (dart amount) cm; back waist circumference was W/4 + 0.2 (front-back difference) + 2.5 (dartamount) cm; front hip circumference was H/4 + 0.2 (ease) + 0.2 (front-back difference) cm; and back hip circumference was H/4 + 0.2 (ease)-0.2 (front-back difference) cm; Front droop was 1.6 cm. The newly developed tight-fit pattern is expected to be of great use as a basis for garment construction.

매체혼탁에 따른 파장가변 빛간섭단층촬영과 스펙트럼영역 빛간섭단층촬영 영상의 질 비교

홍은희(Eun Hee Hong),박승훈(Seung Hun Park),이정욱(Jung Wook Lee),이주향(Ju Hyang Lee),송인석(In Seok Song),이병로(Byung Ro Lee) 대한안과학회 2016 대한안과학회지 Vol.57 No.2

목적: 안구 매체혼탁이 있는 안에서 파장가변 빛간섭단층촬영(swept-source optical coherence tomography, SS-OCT)과 스펙트럼영역 빛간섭단층촬영(spectral domain optical coherence tomography, SD-OCT) 영상의 질을 비교하고자 하였다. 대상과 방법: 정상 40안, 매체혼탁 60안(백내장 30안, 유리체혼탁 20안, 각막혼탁 10안)에서 SS-OCT와 SD-OCT의 6×6 macularscan을 시행하였다. 각 영상에 대해 영상의 질의 객관적 지표로 quality factor (QF)를, 주관적 지표로 subjective grading scale(SGS)을 측정하여 정상안과 매체혼탁안에서의 영상의 질 차이를 비교하고 매체혼탁의 종류와 정도에 따른 영상의 질 차이를 비교하였다. 결과: 정상안과 매체혼탁안 모두에서 SD-OCT에 비해 SS-OCT에서 객관적 지표, 주관적 지표 모두 더 높은 영상의 질을 보였다(p<0.001). SS-OCT와 SD-OCT의 영상의 질 차이는 매체혼탁의 종류에 따른 유의한 차이는 없었고(QF: p=0.188, SGS: p=0.635), SD-OCT QF를 기준으로 매체혼탁의 정도에 따라 분류한 두 군(Group I: 20≤QF<50, II: 0≤QF<20) 간의 비교에서도 유의한 차이는 보이지 않았다(QF: p=0.088, SGS: p=0.051). 결론: SS-OCT는 매체혼탁의 종류나 정도에 관계없이 SD-OCT에 비해 개선된 영상의 질을 보여주며, 이는 매체혼탁안에서 정확한 질병 진단 및 경과 평가에 도움이 될 것으로 여겨진다. Purpose: To compare the image quality between swept-source optical coherence tomography (SS-OCT) and spectral domain optical coherence tomography (SD-OCT), especially in eyes with media opacity. Methods: Forty eyes without media opacity and 60 eyes with media opacity (30 eyes with cataract, 20 eyes with vitreous opacity, and 10 eyes with corneal opacity) were included in this study. SD-OCT and SS-OCT 6 × 6 macular scans were taken by a single operator. For image quality analysis, a total of 200 OCT images were subjectively graded by two trained retina specialists and measured quantitatively using the image quality factor (QF) built into the OCT devices. Results: Compared to conventional SD-OCT, SS-OCT had statistically significantly better subjective and objective grades in the normal group, as well as each of the media opacity groups (p-value < 0.001). In both the subjective and objective grades, there was no significant difference according to the types of media opacity (QF: p = 0.188, subject grading scale [SGS]: p = 0.635) and the degree of media opacity (Group I: 20 ≤ QF < 50, Group II: 0 ≤ QF < 20; QF: p = 0.088, SGS: p = 0.051) in the superiority of image quality of SS-OCT to SD-OCT. Conclusions: In this media opacity patient population, swept-source OCT is a superior diagnostic tool when compared with SD-OCT in both objective and subjective assessments, even in the ocular media opacity. This result may be useful in diagnosis and progression detection of retinal disease in media opacity eyes.

종합감기약 복용 후 발생한 양안 급성 폐쇄각발작 1예

홍은희(Eun Hee Hong),이민지(Min Jee Lee),송인석(In Seok Song) 대한안과학회 2016 대한안과학회지 Vol.57 No.2

목적: 종합감기약(성분: Chlorpheniramine maleate, phenylephrine hydrochloride, belladonna alkaloid) 복용 후 발생한 양안의 급성폐쇄각발작 1예를 경험하여 보고하고자 한다. 증례요약: 67세 남자 환자가 내원 1일 전부터 시작된 양측성 두통, 구토와 동반된 양안 통증 및 시력저하를 주소로 내원하였다. 환자는 내원 3일 전부터 하루 3회 일반의약품의 종합감기약을 복용하고 있었다. 최대교정시력 우안 0.3, 좌안 0.7이었고, 안압은 우안 50mmHg, 좌안 40 mmHg, 굴절값은 우안 +0.75 D sph=-0.75 D cyl×100, 좌안 +1.25 D sph=-1.25 D cyl×80으로 측정되었다. 양안의 중심 전방깊이는 중심 각막두께의 3배, 주변부 전방깊이는 1/4 이하였고, 전방각경 검사상 양안의 전방각은 폐쇄되어 있었다. 감기약을 끊고 축동제 및 안압하강제 투여 후 증상은 호전되었다. 10일 후 양안에 레이저 주변부홍채절개술을 시행하였고 4개월 후까지 증상의 재발이나 안압의 상승은 관찰되지 않았다. 결론: 시중에서 쉽게 구할 수 있는 종합감기약에 의해서도 급성 폐쇄각발작이 발생할 수 있으므로 급성 폐쇄각발작의 소인이 있는 환자에서는 이러한 감기약 복용 시에 주의가 필요할 것이다. Purpose: The authors report a case of bilateral simultaneous acute angle closure attack following administration of an over-the-counter common cold medication (ingredients: chlorpheniramine maleate, phenylephrine hydrochloride, and belladonna alkaloid). Case summary: A 67-year-old man visited the emergency room with a sudden onset of bilateral blurred vision and ocular pain accompanied by headache, nausea, and vomiting. He had taken an over-the-counter common cold medication three times per day for three days before the visit. His visual acuity was 0.3 and 0.7 and intraocular pressure (IOP) was 50 mm Hg and 40 mm Hg in right and left eye, respectively. The refraction in manifest refractive test was +0.75 D sph = ‑0.75 D cyl × 100 in right eye and +1.25 D sph = ‑1.25 D cyl × 80 in left eye. The anterior chamber depth was three times the corneal thickness in center and less than 1/4 of the corneal thickness in periphery in both eyes on van Herick method. The angles of both eyes were closed on gonioscopy. He was treated with ocular hypotensive medication and miotics followed by withdrawal of common cold medications. After 10 days, bilateral neodymium-doped yttrium aluminium garnet (Nd:YAG) laser peripheral iridotomies were done. During four months of follow-up, there was no recurrence of angle closure attack, and normal IOP was maintained without glaucoma medications. Conclusions: Common cold medications which are easily accessible can induce acute angle closure attack in those who are predisposed to develop angle closure attacks, hence attention must be taken in those people when taking common cold medications

언론사의 여성 리더십에 대한 탐색적 연구

홍은희(Eun-Hee, Hong) 한국여성커뮤니케이션학회 2010 미디어, 젠더 & 문화 Vol.13 No.-

이 연구는 직무의 공익성과 사기업으로서의 영성이 함께 추구되는 직장이라는 특성을 지닌 언론 조직에서 승진의 요소와 간부의 리더십 인식을 살펴보고자 한 것이다. 특히 여기자들이 늘어나고 부서배치 등의 여건이 개선되고 있는 상황에서 조직문화의 변화에 따른 여기자들의 리더십에 주목하였다. 남녀기자를 대상으로 한 서베이 결과 승진요소의 우선순위와 승진요소에 따른 능력 인식 등에서 성차를 보였으며 여기자들이 남기자에 비해 뒤지는 것으로 나타났다. 그러나 남녀기자 모두 ‘변혁적 리더십’을 이상적 리더십으로 인식하고 있고, 이에 대한 평가는 여성간부가 더 우수한 것으로 나타났다. 이는 언론사의 21세기 리더로서 여기자가 남기자에 비해 조직구성원들의 인식 면에서 강점을 갖고 있음을 의미한다. This research explores the gender differences in the perception of ‘factors of promotion’ and ‘the types of chief’s leadership’ in the press where reporters work for not only pursuing the public benefits of their duties but also seeking the profits of the individual company. The research especially focuses on the leadership of female journalists according to the change of the corporate culture at this time when there is a steady increase in female journalists and their working conditions, such as division posting, are getting better. The findings of this research are summarized as follows; Male-oriented organizational culture is still remaining although it has improved compared to that of 1997, and gender differences are found at the high priority for factors of promotion. Male and female reporters rate male and female chief’s leaderships high respectively; however, both recognize ‘transformational leadership’ as an ideal type of leadership, and female chiefs have better appraisals than male in that type. It means, as 21st-century leader of the press, female reporters get more strong points in the recognition of organizational members than male.

남성 싱글플리티드 팬츠 패턴비교분석 및 가상착의평가

홍은희(Eun-Hee Hong),김경아(Kyung-A Kim),어미경(Mi-Kyung Uh) 한국의상디자인학회 2015 한국의상디자인학회지 Vol.17 No.1

3차원 가상착의에 의한 남성 Jean Pants 패턴 비교 분석

홍은희(Eun-Hee Hong),어미경(Mi-Kyung Uh),김경아(Kyung-A Kim) 한국의상디자인학회 2015 한국의상디자인학회지 Vol.17 No.2