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이승아,김도현,김윤,Lee, Seung-Ah,Kim, Dohyeon,Kim, Yoon 한국멀티미디어학회 2021 멀티미디어학회논문지 Vol.24 No.6
During tensile test, tensile strain of tensile tester is measured by movement distance of upper zig and initial specimen's length. Conventional tensile tester program obtains the tensile strain after the end of the test, however the method is not appropriate in real time because the results are calculated until the test is finished. We suggest a real-time measurement system of tensile strain using ArUco Marker in OpenCV library. The system is designed to detect marker attached on the upper zig and calculate specimen's tensile strain. According to comparison of the calculated data and the results of the tester, errors approximately showed 0.128 mm on 3840×2160 video resolution.
이승아,배자성,김기환,김지일,안창혁,박우찬,송병주,정상설,김정수,Seung Ah Lee,M.D.,Ja Seong Bae,M.D.,Kee Hwan Kim,M.D.,Ji Il Kim,M.D.,Chang Hyuck An,M.D.,Ph.D.,Woo Chan Park,M.D.,Ph.D.,Byung Joo Song,M.D.,Ph.D.,Sang Seol Jung,M.D 대한갑상선-내분비외과학회 2007 The Koreran journal of Endocrine Surgery Vol.7 No.2
Purpose: Endoscopic surgery to treat thyroid neoplasm was developed to solve the aesthetic problems that resulted from conventional open surgery. Although endoscopic thyroidectomy was initially performed in patients with benign thyroid neoplasm, its use has recently been extended to patients with Graves's disease and early cases of thyroid cancer.The purpose of this study was to determine whether this surgical approach is feasible and safe for the treatment of thyroid cancer. Methods: Between December 1999 and April 2006, 132 thyroid cancer patients at our institution were treated by either conventional thyroidectomy or endoscopic thyroidectomy. Endoscopic thyroidectomy was conducted using a gasless anterior neck skin lifting method. The inclusion criteria for endoscopic thyroidectomy in thyroid cancer patients included a tumor size of less than 2cm, absence of extrathyroidal extension, absence of cervical lymph node metastasis, and well differentiated cancers. Results: We performed endoscopic thyroidectomy in 29 thyroid cancer patients. There were no significant differences in operative time, the amount of drainage and the number of retrieved lymph nodes between conventional thyroidectomy and endoscopic thyroidectomy. In addition, although endoscopic thyroidectomy was associated with more complications, it was also associated with a shorter hospital stay. Conclusion: The completeness of surgical resection conducted via an endoscopic thyroidectomy may be comparable to that of conventional surgery, however, a larger series and longer follow-up evaluation are necessary for definitive conclusions to be drawn about its oncologic validity. (Korean J Endocrine Surg 2007;7:103-106)
압력센서가 내장된 보행 분석기를 통한 아치 형성 보행의 생역학적 변수의 특성
이배열 ( Bae Youl Lee ),유승돈 ( Seung Don Yoo ),이승아 ( Seung Ah Lee ),전진만 ( Jinmann Chon ),김동환 ( Dong Hwan Kim ),정용설 ( Yong Seol Jeong ),노성규 ( Seong Gyu Noh ),이미애 ( Mi Ae Lee ),이우진 ( Woo Jin Lee ),김은혜 ( Eun 대한스포츠의학회 2016 대한스포츠의학회지 Vol.34 No.1
The objective of study was to compare biomechanical parameters between normal and arch building gait in healthy subjects. A total of 40 feet from 20 healthy adults were evaluated in this study. The participants were asked to walk on a treadmill comfortably at 2 km/hr for 30 seconds. Then, they were asked to walk after making arch building through raising arches with their feet by pulling the big toe toward the heel. Gait parameters such as geometry, center of pressure, maximum force, and maximum pressure were measured in normal and the arch building gait using a gait analysis system equipped with pressure sensor. Arch building gait demonstrated significantly (p<0.01) decreased forefoot maximum force but significantly (p=0.024) increased heel maximum force compared to normal gait. Maximum pressures of the midfoot and heel were also significantly (both p<0.01) increased. However, the maximum pressures of the forefoot were not significantly (p>0.05) different between the two conditions. Geometry, phase, and time parameters were not significantly (p>0.05) different between the two conditions, either. Although forefoot and midfoot maximum force were significantly decreased in arch building gait compared to those in normal gait, the maximum pressure of forefoot was not significantly changed, indicating decreased area of forefoot contact during arch building gait. The arch building gait moves the center of presser to the hind foot and redistributes the contact area, thus changing the distribution of maximum pressure.
이승아(Lee, Seung Ah),김희섭(Kim, Heesop) 경북대학교 사회과학연구원 2010 사회과학 담론과 정책 Vol.3 No.1
이 연구는 교육인적자원부와 한국교육학술정보원(KERIS)에서 학교도서관의 업무를 지원하고, 정보 서비스를 향상시키기 위해서 구축한 학교도서관 정보시스템인 DLS의 이용 만족도에 영향을 미치는 요인을 콘텐츠 품질 만족도, 서비스 품질 만족도, 시스템 품질 만족도라는 3가지 정보시스템 성과 측정 지표를 중심으로 분석하고, DLS를 일선에서 사용하고 있으면서 DLS가 제공하는 기능에 많은 관심을 가진 사서교사들을 대상으로 DLS 콘텐츠, 서비스, 시스템 차원별 만족도와 전체 만족도를 조사하여 DLS의 개선에 필요한 방향을 제시하였다. 연구방법은 45개 문항으로 된 설문지법을 채택하였으며, 자료의 분석은 DLS를 사용해본 경험이 있고, 교육경력이 1년 이상인 초?중?고등학교 사서교사 111명의 유효한 설문지를 대상으로 하였다. The purpose of this study is to analyze the user satisfaction of DLS(Digital Library System) by applying a model of the user satisfaction index which consists of information quality, service quality, and systems quality. This study also investigate the relationship among the dimensions of DLS"s success evaluation and user satisfaction, royalty, and compliant. In order to achieve these goals, data were collected from the librarians of the school library media centers in Korea using a questionnaire which contains of 45 questions, and a total of 111 valid responses were analysed with SPSS. The results of this study can be summarized as follows: ① It revealed that the higher the DLS users satisfy bring the higher their royalty, but the lower their complaint. ② Among six dimensions of the content quality, the usefulness, the accuracy, the easy to understand and the reliability showed a significant relationship with the user satisfaction index. ③ Among dimensions of the service quality, the keeping one"s promise at the appointed time, the supplying extra time for request, and the providing an useful substitute seemed to a significant relationship with the user satisfaction index. ④ Among dimensions of the system quality, the information retrieval time, the interface design, the interaction between DLS center advisor and users demonstrated a significant relationship with the user satisfaction index.
이승아(Lee, Seung Ah),김신원(Kim, Shin Won) 한국디자인문화학회 2021 한국디자인문화학회지 Vol.27 No.2
고령사회가 도래함에 따라 노인을 대상으로 한 공원 조성이 관심을 받고 있으며 각 시도에서 조성이 진행되고 있는 추세이다. 노인 친화형 공원은 노인이 다양한 활동과 사회적 교류를 하며 여가시간을 보낼 수 있는 장소로서, 이는 성공적 노후로 연결될 수 있기에 가치 있는 공간이라 할 수 있다. 본 연구는 노인친화형 공원의 조성 실태를 알아보고 개선안을 제시하기 위해 공간구성 및 시설현황을 분석하였다. 연구대상지는 서울 · 경기도에 있는 공원 6곳이며, 각 공원은 노인을 대상으로 조성이 되었다고 보도된 장소이다. 관련 문헌과 선행 연구를 고찰하고 이를 바탕으로 평가구간과 평가기준 및 세부 항목을 작성하였다. 작성한 분석의 틀을 토대로 현장 답사를 실시하였으며, 평가 구간과 평가 기준에 따라 문제점을 분석하고 개선안을 제시하였다. 노인 친화형 공원의 공간구성 요소를 분석한 결과, 평가구간에서는 부대시설(53.1%)과 안내경고시설(20.0%)이 상대적으로 미흡한 요소인 것으로 나타났으며, 평가기준에서는 인지성(29.2%)과 사회성(31.3%)이 가장 낮은 것으로 나타났다. 본 연구의 결과는 향후 노인 친화형 공원의 계획 및 조성을 위한 기초자료로서 활용되는 것에 그 의의가 있다. As society grays, parks for elderly people are catching the attention of many people and many cities and provinces are building age-friendly parks. Age-friendly parks can be highly valued because those parks provide places, where elderly people can spend their free time engaging in a number of activities and enjoying social interaction with others, and social engagement and interaction are linked to successful ageing. In this study, spatial plans used for the parks and facilities in the parks were analyzed to investigate how age-friendly parks were built and to suggest ways to improve age-friendly parks. 6 parks in Seoul and Gyeonggi-do, all of which were reported as parks designed especially for elderly people, were studied. Literatures and previous studies relevant to the subject were studied and, after that, areas of assessment, assessment criteria, and subcategories were developed. The fieldwork was carried out and the analytical framework, which was developed earlier, was used during fieldwork. Shortcomings of the 6 parks were analyzed and ways to improve age-friendly parks were suggested using areas of assessment and assessment criteria. According to the analysis of factors to be considered by spatial planning of age-friendly parks, appurtenances(53.1%) and information and warning signs(20.0%) were found to be relatively not enough compared to other areas which were assessed and sociality(31.3%) and identifiability(29.2%) were found to be the lowest and second lowest scoring criterion respectively. The results of this study provided basic data which can be used for planning and building new age-friendly parks. This study, therefore, has a great significance.