보스톤 1형 인공각막이식술의 2예

나윤수,김예니,주명진,김재호,Yoon-Soo Na M,D,Ye-Ni Kim M,D,Myung-Jin Joo,Jae-Ho Kim 대한안과학회 2005 대한안과학회지 Vol.46 No.12

Purpose: This article reports two cases of Boston (Dohlman-Doane) Type Ⅰ Keratoprosthesis procedures that were performed for the first time in Korea. Methods: Using the Boston Type Ⅰ keratoprosthesis, we implanted ultimately these to two cases of corneal blinded patients. Results: Two Boston (Dohlman-Doane) Type Ⅰ Keratoprosthesis procedures were performed successfully. The first case had poor visual prognosis due to preexisting optic neuropathy and vitreous hemorrhage, but was showed better for cosmetic effect. The second case had maintained an uncorrected visual acuity of 0.1 at postoperative 3 months. Conclusions: We hope to perform additional procedures and long-term follow-ups to further evaluate this new surgical technique for stability and efficiency.

익상편 절제술 후 발생한 공막괴사에 대한 동종공막이식수술 성적

나윤수,주명진,김재호,Yoon-Soo Na,M,D,Myung-Jin Joo,M,D,Jae-Ho Kim,M,D 대한안과학회 2005 대한안과학회지 Vol.46 No.3

Purpose: To emphasize the importance of conjunctival flap or amniotic membrane covering on the scleral allograft for scleral necrosis following pterygium excision. Methods: Five eyes in four patients showed signs of impending perforation caused by scleral necrosis following pterygium excision, with strontium irradiation in four eyes and with instillation of mitomycin C in the other eye for preventing recurrence of pterygium. All cases were transplanted human sclera stored at -20℃ in Eye-Bank. Among them, the patient’s own conjunctiva was used to cover the scleral allograft with interrupted sutures in four eyes, where in the other eye the scleral allograft was alternatively covered over by using human amniotic membrane stored at -70℃. Results: The results of all five cases were very successful without any complications during an average follow-up of 19 months (range 6~25 months). Conclusions: Based on the clinical experiences of these five cases, we concluded that the covering of the scleral allograft with conjunctiva or amniotic membrane is a very important procedure to ensure the successful viability of the scleral allograft, which is a natural structure of the conjunctiva and sclera.

수입공여각막과 각막보존액의 미생물학적 연구

나윤수,우성욱,강자헌,주명진,Yoon-Soo Na,Sung-Wook Woo,Ja-Heon Kang,Myung-Jin Joo 대한안과학회 2005 대한안과학회지 Vol.46 No.12

Purpose: To evaluate the prevalence of contamination of imported donor corneas and their preserved solutions, and to characterize the spectrum of contaminating microorganisms. Methods: Thirty-seven imported donor corneas and their preserved solutions imported between December 2003 and June 2005 were included in this study. Results: Five imported donor corneas (13.5%) had positive bacterial cultures, and none had positive fungal or mycobacterial cultures. On the other hand, the preserved solutions did not have positive bacterial, fungal, or mycobacterial cultures. One of the 5 imported donor corneas with positive bacterial culture had a mixed bacterial culture. There were 3 isolates of Staphylococcus epidermidis, 1 isolate of Streptococcus viridans, 1 isolate of Enterobacter cloacae, and 1 isolate of Pseudomonas aeruginosa. Conclusions: The prevalence of contamination of imported donor corneas is low; however, there is a risk of postkeratoplasty infection by contaminated donor corneas. Thus, careful management should be practiced during and after corneal transplant operations.

북핵문제의 전개과정과 정책적 대안

나윤수 ( Yoon Soo Na ) 조선대학교 동북아연구소 2006 동북아연구 Vol.21 No.2

CCS 기술을 위한 생산정–주입정 전환 시 발생 가능한 유정 완전성 문제에 대한 고찰

송영수(Young Soo Song),나윤수(Yoon Su Na),김규현(Kyu Hyun Kim),김동현(Dong Hyun Kim),이다해(Da Hae Lee),양정환(Jung Hwan Yang),왕지훈(Ji Hoon Wang) 대한기계학회 2023 대한기계학회 춘추학술대회 Vol.2023 No.7

아두이노와 적외선 센서를 이용한 스마트 도어락과 앱 개발에 대한 연구

전형준(Hyeomg-Jun Jeon),나윤수(Yoon-Soo Na),윤여균(Yeo-Gyun Youn),김경호(Kyeong-Ho Kim),안희운(Hee-Woon Ahn),김재욱(Jae-Wook Kim) 한국전자통신학회 2022 한국전자통신학회 논문지 Vol.17 No.6

본 논문에서는 현대사회에서 전자기기를 스마트폰의 앱을 통해 쉽게 작동시킬 수 있다는 것에 의해 기존의 키패드로만 제어되는 도어락과는 달리 스마트폰을 이용하여 도어락을 제어할 수 있게 앱 인벤터를 이용하여 앱을 제작하였다. 블루투스 모듈 실험을 통해 장애물이 없을 시 스마트폰과 통신거리가 최대 10m까지 제어가 되었고, 음성인식 실험을 통해 60dB의 소음 시 주파수가 500∼1000Hz와 1000∼1500Hz에서는 인식률이 각각 85%와 90%로 나왔으며, 80dB 소음 시 500∼1000Hz와 1000∼1500Hz일 때는 각각 70%와 80%의 인식률을 보였다. 실험평가 결과를 통해 편의성과 보안성을 향상할 수 있음을 확인할 수 있었다. In this paper, unlike door locks that are controlled only by the existing keypad because electronic devices can be easily operated through apps on smartphones in modern society, an app was created using app inventory so that door locks can be controlled using smartphones. Through the Bluetooth module experiment, the communication distance with the smartphone was controlled up to 10m when there were no obstacles, and through the voice recognition experiment, the recognition rate was 85% and 90% at 500~1000Hz and 1000~1500Hz, respectively, and 70% and 80% at 80dB noise. Through the results of the experimental evaluation, it was confirmed that convenience and security could be improved.

노후 유‧가스정의 지능형 진단 및 폐공 처리 기술 개발

김동현(Dong Hyun Kim),송영수(Young Soo Song),김규현(Kyu Hyun Kim),나윤수(Yoon Su Na),왕지훈(Ji Hoon Wang) 대한기계학회 2023 대한기계학회 춘추학술대회 Vol.2023 No.7

클랩(Clap)과 노말(Normal) 스케이트 착용에 따른 남ㆍ여 스피드 스케이트 출발 구간의 운동학적 분석

윤희중,나윤수,최재용,김태삼 한국체육대학교 체육과학연구소 2000 韓國體育大學校附屬 體育科學硏究所論文集 Vol.19 No.1

The purpose of this study is to examine the kinematic characteristics of starting phase of players weared clap and normal skate in speed skating. The subjects of this study were current members of high ranked skaters in university. The Direct Linear Transformation(DLT) technique was employed to obtain 3-D position coordination of 22 joint points. Butter-worth low-pass filtering method was used to data smoothing at cut-off frequency of 7.4Hz. From the results of this study, the following conclusions were drawn; 1.At the of landing, male athlete showed slightly fast time in the first left-step and they also showed take-off by fast swing motion during gliding. 2.To get propel acceleration, female athlete showed large tranverse displacement and, on the other hand, male athlete showed large horizontal displacement. According to this results, COG showed steep change of motion in the high position during starting. 3.In the velocity of COG, both male an female athlete show a gradual rise-pattern of the velocity rate, In the velocity of skate front blade, they showed the swift change of the velocity during the second and third phase. 4.In the front angle of trunk, both and female athlete showed the big motion of trunk by the change of angle. In the angle of lower-segments, the better record athlete have, the faster motion of flexion and extention. Especially, female athlete showed the flexion of the angle-change and do not fast swing. In the knee, male athlete show take-off motion as increasing angle of left knee during starting, On the other hand, female athlete showed unnecessary pre-motion by decreasing knee angle and increasing it again.

강원지역 태권도 대중화를 위한 태권도 민간시설 운영 실태에 관한 연구

나윤수,김희철,김륭희 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.20 No.1

The question survey on the realities of the T'aekwondo facilities under private management result in a quarter tendency respond to better the male teacher than schoolmistress. After all, for popularization, the policy make an incentive offer to the male teacher better than schoolmistress consider, therefore ratio of female and male teacher is equal. The survey about type of facilities occupies an entire private management and the T'aekwondo facilities rely on private management because corporate, public and office facilities are not nearly. So, urgent questionsan make use of auxiliary organ of a university and public, office facilities. An aspect of facilities and equipment, significance test for the location depend on province and district result in somewhat discrepancy. That is, duty time of teacher depend on province better than district is somewhat much. T'aekwondo facilities and conditions for the location depend on province and district is somewhat discrepancy, but income of a month is no discrepancy. The period of duty better than other conditions an effect influence on income of a month. The most T'aekwondo teacher work on average 9 hours a day(about 46 %) and average duty period is between 2 and 3 year, if average duty period more than 4 years, tendency to workshop change or convert other types of business. therefore event is made from setting up concept of his whole workshop. The net payment, income of a month, most of teacher is between \1,000,000 and \1,200,000 , high frequency and the low income bracket better than other the kind of occupation. So, the system about payment based on ability and result, a bonus become established

한·일 엘리트 여자 축구선수의 각근력 특성 비교

윤성원,강영석,나윤수 서울여자대학교 자연과학연구소 1995 자연과학연구논문집 Vol.6 No.-

한국과 일본 여자 축구 대표선수의 슬관절을 중심으로 신전 및 굴곡운동시 발휘되는 각근력의 근기능을 평가, 비교하기 위해서 한국 여자 축구 선수 15명과 일본 여자 축구선수 17명 총 32명을 대상으로 등속성 근력측정장치인 사이백스(Cybex-3)를 이용하여 근력, 근파워 및 근지구력을 측정, 비교 분석한 결과를 요약하면 다음과 같다. 1. 한국과 일본 여자 축구 대표선수의 등속성 근력발휘는 신전 및 굴곡력 모두 각 부하속도에서 차이가 없는것으로 나타났으나 느린부하속도에서는 한국 여자 축구선수, 빠른 부하속도에서는 일본여자 축구선수가 다소 높은 것으로 나타났다. 2. 동측근력의 균형적 발달에 있어서 유의한 차이는 없으나 일본 여자 축구 대표선수가 측정부하속도 모두에서 한국 여자 축구 대표선수보다 조금 높은 것으로 나타났다. 3. 240°/sec 부하속도에서 50회 신전 및 굴곡반복 운동시 발휘된 평균파워는 신전력에 있어서 한국선수가 일본선수보다 유의한 차이(p=.012)로 낮게 발휘되었으며 굴곡력에서도 낮게 발휘되었으나 유의한 차이는 보이지 않았다. 4. 240°/sec 부하속도에서 50회 신전 및 굴곡반복 운동시 발휘된 총일량과 근지구력비에서 신전력 총일량에서는 한국 여자축구선수가 유의한 차이(p=.021)로 높게 발휘되었으나 굴곡 총일량, 신전 및 굴곡 근지구력비에서는 두 집단간 유의한 차이가 나타나지 않았다. 이와 같은 결과로 한국 여자 축구선수의 경우 경기력에서 우수한 일본선수와 전체적 체력 평가에 의한 비교분석이 이루어지지 않았으나 축구선수에게 매우 중요한 각근력에서 차이가 없는 점을 고려할 때 한국여자 축구경기의 경우 경기력 향상을 위한 노력으로 많은 실전 경험과 기술 트레이닝이 이루어진다면 일본 여자축구와 비교할 수 있는 경기력 향상이 기대될 수 있을 것으로 본다. The purpose of this was to compare muscula strength, muscle power and muscle endurance for lower limber of Korean and Japan woman soccer player. The Cybex-Ⅱ system of measurement equipment was used to measure these isokinetic muscle function. The subjects were 15 korean elite woman soccer player and 17 Japan elite player. The summary of this results is as following: 1. There was no difference in isokinetic strength of flexion and extension at all speed range between Japanese and Korean female soccer player. Korean players showed higher muscle strength at low speed but Japanese players revealed higher muscle strength at high load speed. 2. In terms of ipsilateral balance, Japanese players displayed higher results than Korean player but there was no significance. 3. Japanese players had a greater muscle mean power of extensor at 240°/sec than that of Korean players(p=.012) but there was no sinificance in muscle mean power of flexiors. 4. Regarding total work and muscle endurance ratio of flexiors and extensior, Korean players showed higher results in total work but the rest of them did not have significant differences.