섬유주절제술에서 결막편에 따른 여과포 형태 비교

이병희,최원석,이종욱,이규원,Byeong Hee Lee,Won Suk Choi,Jong Wook Lee,Kyoo Won Lee 대한안과학회 2011 대한안과학회지 Vol.52 No.12

Purpose: To compare the bleb morphology and surgical outcomes of a limbus-based group with those of a fornix-based group who underwent trabeculectomy with mitomycin C (MMC). Methods: Sixty-five eyes of 59 patients who had undergone trabeculectomy with MMC and who were observed for one year or more were included in the present study. A limbus-based conjunctival flap was used for 34 eyes of 31 patients and a fornix-based conjunctival flap for the other 31 eyes of 28 patients. The bleb morphologies were classified and compared after one year or more postoperatively according to the Moorfield Bleb Grading System, and intraocular pressure and success rates were evaluated. Results: The central bleb vascularity of the limbus-based group was statistically significantly lower than that of the fornix- based group (1.79 ± 0.64; 2.16 ± 0.73, p = 0.042). The risk of cystic bleb formation was higher in the limbus-based group (38.2%; 16.5%, p = 0.047). There were no differences in the IOP or success rate between the two groups. Conclusions: There were no differences between the two groups with regard to the IOP or cumulative success rate. However, in the fornix-based group, the central bleb vascularity was lower and the risk of avascular cystic bleb formation was higher than those in the limbus-based group. J Korean Ophthalmol Soc 2011;52(12):1461-1469

40 프리즘디옵터 이상의 외사시에서 수술 전 예측한 수술 후 사시각의 정확성

이병희,이종욱,이정호,오동렬,이규원,권정윤,Byeong Hee Lee,MD,Jong Wook Lee,MD,Jung Ho Lee,MD,Dong Ryeul Oh,MD,Kyoo Won Lee,MD,Jung Yoon Kwon,MD 대한안과학회 2010 대한안과학회지 Vol.51 No.12

Purpose: To assess the accuracy of estimating postoperative deviation in large-angle exotropia over 40 prism diopters (PD). Methods: A retrospective analysis was performed on 61 exotropia patients with over 40 PD exotropia who had undergone 2-muscle surgery by two surgeons and with at least 6 months follow-up. The accuracy was assessed by analyzing the discrepancy between preoperatively predicted residual deviation and deviation at postoperative 6weeks. Successful surgery was defined as deviation within ± 10 PD at the last postoperative visit. Results: More accurate residual deviation was predicted in exotropia with prism diopters between 40 and 59 (97.8%) than in exotropia with 60 PD or more (62.5%). And there was no significant difference between two surgeons. Surgical success rates at six months and one year after surgery were 96.8%, 94.7% in exotropia with 40 to 49 PD, 71.4%, 60.0%, 50 to 59 PD, 50.0%, 45.5%, 60 PD or more, respectively. There were four patients of whom the postoperative deviation angle exceeded more than 10 PD of the estimated deviation. Conclusions: The accuracy of estimating residual deviation prior to surgery was higher and more successful surgery was achieved in exotropia ranging in 40 to 59 PD than in exotropia with 60 PD or more. Therefore, 2- muscle surgery will be suitable for large-angle exotropia with less than 60 PD. J Korean Ophthalmol Soc 2010;51(12):1614-1619

양쪽머리 군날개의 수술적 치료에 대한 임상연구

이병희,이광자,박영정,이규원.Byeong Hee Lee. MD. Gwang Ja Lee. MD. Young Jeung Park. MD. Kyoo Won Lee. MD 대한안과학회 2010 대한안과학회지 Vol.51 No.5

Purpose: To evaluate two surgical methods-amniotic membrane transplantation (AMT) and split-conjunctival grafts (SCG)-for double-head pterygium, with regard to the postoperative outcome and recurrence rate. Methods: In a total of 16 eyes (14 patients), 7 eyes (6 patients) receiving amniotic membrane transplantation and 9 eyes (8 patients) receiving split-conjunctival grafts were compared to evaluate recurrence and complications. Results: Within the amniotic membrane transplantation group, two eyes (29%) had corneal recurrence, and 3 eyes (43%) had conjunctival recurrence. The mean follow-up period was 21.9±3.5 months, and all recurrences were on the nasal side. The average period preceding the corneal recurrences was 7.2±1.8 months. Within the split-conjunctival grafts group, the mean follow- up was 13.6±2.1 months, and neither the corneal nor conjunctival recurrences were observed. In addition, the eyes of this group were more aesthetically stable, with only one eye exhibiting pseudo-pterygium at the donor site. Conclusions: In cases of double-head pterygium without contraindication of conjunctival autograft, the split-conjunctival grafts produced fewer recurrences and showed enhanced cosmetic results, as compared to the amniotic membrane transplantation, indicating that the split-conjunctival grafts is the superior choice over amniotic membrane transplantation. J Korean Ophthalmol Soc 2010;51(5):642-650

기니픽, 마우스 그리고 랫드에서 Intralipidos의 항원성

이병희,제정환,이광훈,강병철,이원우,임종희,정지윤,이영순,Yi, Beoung-Hi,Che, Jeong-Hwan,Li, Guang-Xun,Kang, Byeong-Cheol,Lee, Won-Woo,Ihm, Jong-Hee,Jung, Ji-Youn,Lee, Yong-Soon 한국독성학회 1998 Toxicological Research Vol.14 No.3

The antigenicity of intralipidos was investigated in guinea pig, mice and rats. Antigenicity tests-active systemic anaphylaxis (ASA), passive systemic anaphylaxis (PSA), passive cutaneous anaphylaxix (PCA) of this materials were performed. The results were followed: 1. After sensitizaion with YPL, YPL+intralipidos, and intralipidos, emulsified with complete Freund's adjuvant (CFA), guinea pigs didn's show any anaphylatic shock symptom in the ASA test, 2. These materials didn't show any anaphylatic shock symptom in the PSA test, 3. After sensitization with antisera of YPL, YPL+intralipidos, and intralipidos sensitized mice, blue spots were not observed on the hypodermis of back of rats in the PCA test. From the results of this investigation, the antigenicity of YPL, intralipidos was negative under the present experimental condition.

공막연화증에 대하여 조직접합제를 이용한 동종공막이식술과 양막이식술의 임상성적

이병희,문홍재,박영정,이규원,Byeong Hee Lee,MD,Hong Jae Mun,MD,Young Jeung Park,MD,Kyoo Won Lee,MD 대한안과학회 2010 대한안과학회지 Vol.51 No.4

Purpose: To examine the effects, complications, and safeties of sclera allograft and amniotic membrane transplantation with fibrin glue as surgical treatment methods for scleromalacia. Methods: The study included 14 eyes of 14 scleromalacia patients who needed surgical treatment. Among them, seven eyes of seven patients whose scleral defect was small (<6 mm) were operated on using only fibrin glue and no suturing, while seven eyes of seven patients whose defect was large (>6 mm) were operated on using fibrin glue and minimum suturing. Amniotic membrane transplantation was performed at the site of the conjunctival defect. Results: In all of the cases, the results of grafting were successful throughout the follow-up period, which was 14.6±4.4 months, on average (ranging from 12 to 27 months). No particular complication was observed during the follow-up period after using fibrin glue. Conclusions: For scleromalacia patients, sclera allograft and amniotic membrane transplantation were performed using fibrin glue. The grafted sclera survived successfully, allowing this treatment modality to be considered an effective and safe option without complications. J Korean Ophthalmol Soc 2010;51(4):485-491

정보 필터링과 시각화에 기반한 국가R&D정보 내비게이션 시스템 개발

이병희(Byeong-Hee Lee),손강렬(Kang-Ryul Shon) 한국콘텐츠학회 2014 한국콘텐츠학회논문지 Vol.14 No.4

본 논문의 목적은 정보 시스템 개발 단계에서 3종(논문, 보고서, 과제) 콘텐츠를 융·복합하여 정보 필터링과 시각화에 기반하여 연구자들이 이용하기 편한 국가R&D정보 내비게이션 시스템을 개발하는 것이다. 이전 단계인 정보 서비스 기획 단계에서 조사된 사용자 니즈 분석과 정보 시각화 요소를 반영하여 본 논문에서는 화면 프로토타입을 작성한 후 3종 콘텐츠에 대해 온톨로지와 RDF를 구축하고 정보 필터링과 시맨틱 검색 기술을 적용하여 정보 시스템을 개발한다. 정보 필터링을 위한 척도를 지수화하기 위해 본 논문에서는 R&D내비게이션 인덱스를 제안하여 구현하고, R&D 콘텐츠를 정보 시각화를 통해 종합적으로 검색할 수 있는 국가R&D정보 내비게이션 시스템을 개발하고, 개발된 시스템에 대해 100명을 대상으로 디자인 선호도 조사를 실시하고 실제 사용자 10명을 대상으로 사용성을 테스트한다. 디자인 선호도 결과도 85%가 긍정적으로 나타났고 사용성 테스트 결과 종합적으로 87.2점으로 시인성은 좋으나 향후 개인화 기능 개발이 더 필요하다고 조사되었다. 본 논문에서 제안되고 구현된 논문의 R&D 내비게이션 지수가 정량적 객관성을 제시하고 향후 다른 콘텐츠의 정보 필터링 지수 개발로 이어지길 기대한다. This paper aims to develop the National R&D Information Navigation System(NRnDINS) that is convenient and easy to use by the researchers on the basis of information filtering and visualization by converging and integrating the three types of the contents, namely, paper, report and project at the stage of development of the information system. An information system is developed by establishing ontology and RDF on the three types of contents, and by applying information filtering and semantic search technology after having created the prototype for the screen by reflecting the user needs analysis and information visualization elements surveyed at the previous stage of information service planning. In this paper, to make the measure for information filtering, R&D navigation index is proposed and implemented, and NRnDINS capable of integrated search of the R&D content sthrough information visualization is developed. Also, for the testing of the developed system, the preference survey for its design by 100 persons and usability test of the system by 10 users are performed. The result of the survey on the preference for the design is affirmative with 85% of the subjects finding it favorable and the composite receptivity is good with the score of 87.2 as the results of the usability test. However, it was also found that further development of the personalization functions is needed. It is hoped that the R&D navigation index of the proposed and implemented in this paper would present quantitative objectivity and will induce further development of other information filtering index of contents in the future.

금속 핀으로 보강된 복합재 단일겹침 체결부의 강도 연구

이병희 ( Byeong Hee Lee ),박용빈 ( Yong Bin Park ),권진희 ( Jin Hwe Kweon ),최진호 ( Jin Ho Choi ),최익현 ( Ik Hyeon Choi ),장성태 ( Sung Tae Chang ) 한국복합재료학회 2012 Composites research Vol.25 No.3

The main objective of this study is to investigate the effect of metal z-pinning on the failure behavior of cocured composite single-lap joints. Three different pin diameters (0.3, 0.5, and 0.7 mm) and three pin areal densities (0.5, 2.0, and 4.0%) were examined. The specimens were fabricated by T700-12K-31E#2510 unidirectional prepreg from Toray. Stainless steel pins were used for z-pinning. Test results showed that except one case with extremely low pin density of 0.5%, all other z-pinned joints exhibited lower initial crack stresses than those of the unpinned joint. However the ultimate strength of the z-pinned joint increased up to 45% at most. Furthermore, even after the complete failure of the joint, the z-pins sustained the carried load to a certain degree experiencing large deformation and provided the stable fracture behavior for the composite joint.

NTIS 데이터 품질관리 체계와 포털 사이트 구축

이병희 ( Byeong-hee Lee ),정옥남 ( Ock-nam Jung ),최희석 ( Heeseok Choi ),임철수 ( Chulsu Lim ),김재수 ( Jaesoo Kim ) 한국정보처리학회 2009 한국정보처리학회 학술대회논문집 Vol.16 No.1

데이터가 기업 및 기관 활동의 중요한 자산으로 인식이 높아지고 있지만 저 품질 데이터로 인한 막대한 손실과 비용의 증가는 큰 문제가 되고 있다. 본 논문에서는 교육과학기술부와 KISTI에서 2007년부터 범부처 차원에서 수행중인 국가R&D 정보자원의 데이터 품질관리를 위해 각 부처와 협의하고 수행해온 국가R&D 데이터 품질관리 체계 수립과 포털 사이트 구축에 관하여 알아본다. 범부처 국가R&D정보자원의 데이터 품질관리체계 수립과 범부처 적용 지침 및 가이드라인 제시를 위해 NTIS사업단 및 15개 부처(16개 대표전문기관)의 실무팀장 및 DB 관리자 중심으로 총 33명의 설문을 실시하여 품질관리체계현황을 조사·분석하였다. 또한 부처(기관)별로 국가R&D표준정보 데이터품질 지표 마련과 주기별 데이터 품질 및 개선도 자체점검을 지원하기 위해, 데이터 점검기준과 절차를 마련하고 이를 기반으로 부처(기관)와 협력하여 데이터품질 점검을 기반을 마련하였다. 이렇게 마련된 품질관리체계와 프로세스를 지원하기 위한 자동화 솔루션을 운영하고자 본 논문에서는 NTIS 데이터 품질관리 체계 및 프로세스, 기능이 통합된 웹 포털 구축에 대해서도 알아본다.

국가R&D정보표준 개정 및 데이터 모델링

이병희 ( Byeong-hee Lee ),정옥남 ( Ok-nam Jung ),양진혁 ( Jin-hyuk Yang ),최희석 ( Heeseok Choi ),김재수 ( Jae-soo Kim ) 한국정보처리학회 2009 한국정보처리학회 학술대회논문집 Vol.16 No.2

국가R&D정보표준은 과학기술기본법 제7조 및 동법 시행령 제41조에 의거하여 국가R&D정보의 체계적인 수집·연계 및 공동활용 기반구축 등에 활용하고자 범부처 차원에서 국가R&D사업 현황파악, 종합조정, 공동활용하기 위한 필요 최소한의 정보를 공유·활용하기 위한 표준정보이다. 2007년 8월 과학기술관계장관회의에서 341개의 항목으로 구성된 국가R&D정보표준이 제정되었고, 2009년 7월 국가과학기술위원회 운영위원회에서 340개의 항목으로 개정되었다. 본 논문에서는 국가R&D정보표준의 2009년 7월 개정내용과 그에 따른 데이터 모델링 결과를 제시함으로써, 15개 부처·청 14개 대표전문기관 및 연구관리기관 업무 담당자들과 R&D종사자들에게 NTIS에서 수집·공유·활용되는 국가R&D정보에 대한 이해와 활용을 증진시키고자 한다.

국가R&D에서 개인정보보호 과제 동향분석과 텍스트마이닝

이병희(Byeong-Hee Lee),이준영(Jun-Young Lee),이지연(Jiyeon Lee),조우승(Woo-Seung Jo),김태현(Tae-Hyun Kim) 한국정보기술학회 2020 Proceedings of KIIT Conference Vol.2020 No.10