• Journal of Chest Surgery
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• v.31 no.9
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• pp.899-902
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• 1998

Recent advances in understanding the anatomy of complete atrioventricular septal defect have led to alternative methods of repairing these defects. Here we report two cases of complete atrioventricular septal defect repair by direct closure of the ventricular element of the defect. Follow-up for average of 3 months suggests that, when direct closure can be performed, the results can be comparable with those of the standard technique. Our initial success with this approach is encouraging; however, longer follow-up and more experiences are required to establish whether it will be broadly applicable.

• Proceedings of the Korea Information Processing Society Conference
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• 2019.10a
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• pp.133-136
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• 2019

차량에서 생성되는 데이터의 가치가 상승함에 따라 데이터 소스와 데이터 내용에 대한 보안 위협 또한 증가하고 있다. 데이터 소스인 차량의 경우에는 운행의 안정성을 보장하고자 블록체인을 결합하려는 시도가 있어왔지만, 무결한 차량 운행 데이터 관리 시스템에 대한 이해 부족으로 데이터 위·변조 등 차량 데이터에 대한 사이버 공격에 적절히 대응하지 못하고 있다. 이에 본 논문은 수집된 차량 데이터의 무결성을 보장하고 수집된 데이터에 대한 질의가 가능한 블록체인 기반 데이터 베이스 시스템을 제안한다. 본 시스템을 통하여 분산 합의 기반 데이터 무결성 검증, 블록을 구성하는 해시트리의 복제 저장 없이 위·변조된 차량 데이터 검출, 일정 수준의 장애를 허용한 상태 하에서의 질의문 처리 등이 가능해진다. 본 시스템은 높은 공간 효율성과 확장성을 가지며, 수소전기차 공유 업체의 차량 운행 정보를 바탕으로 한 성능 평가 결과 평균적으로 데이터 블록 저장에 4.0 초, 각 블록 검증에 2.4 초, 질의 처리를 위한 합의 과정에 1.3 초가 소요됨을 확인하였다.

• Proceedings of the Korea Information Processing Society Conference
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• 2015.10a
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• pp.1778-1781
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• 2015

본 논문에서는 최근 이슈가 되고 있는 마인드 컨트롤 기술을 이용하여 RC 카를 움직이는 기술에 대하여 설명한다. 사회적으로 주의력 결핍 과잉행동 장애(ADHD)를 갖는 사람이 늘어나고 있으며, ADHD는 여러 가지 치료 기술이 있지만 어릴수록 놀이 치료 등을 사용하는 것이 좋다. 본 논문에서 뇌파측정기를 이용하여 뇌파를 모은 뒤 K-평균 알고리즘과 재 클러스터링을 통하여 방향 뇌파를 데이터화하고, 그 이후에 데이터화 된 방향 뇌파들을 토대로 RC카를 움직이는 기술 제안하였다. 개발된 기술의 경우 성능이 높게 나타나지 않았지만, 앞으로 이 기술이 더 발전한다면, 아동의 놀이 등에 활용하여 ADHD도 효과적으로 치료할 수 있을 뿐만 아니라, 실제 자동차 시스템에 적용하는 등 다양한 응용이 가능할 것으로 생각된다.

• Journal of the Korea Society of Computer and Information
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• v.14 no.10
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• pp.199-206
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• 2009

The development of broadband multimedia content, a deaf sign language sign language is being used in education. Most of the content used in sign language training for Hangul word representation of sign language is sign language videos for the show. For the first time to learn sign language, sign language users are unfamiliar with the sign language characteristics difficult to understand, difficult to express the sign is displayed. In this paper, online, learning sign language to express the sign with reference to the attributes, Semantic Logic applying the sign language of multimedia content model for video-based platform is designed to study.

• Proceedings of the Korean Society of Computer Information Conference
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• 2023.01a
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• pp.411-412
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• 2023

본 연구는 서울특별시 275만명의 교통약자들이 서울시내 대중교통의 중심인 지하철 이용에 막대한 영향을 미칠 수 있는 지하철 역내의 승강 및 편의시설 위치 및 설치 정보를 수집하여 데이터베이스 시스템으로 구축하였다. 이를 바탕으로 장애인을 비롯한 교통약자들이 쉽게 이동여부를 판단할 수 있도록 승강시설의 위치와 장애인화장실의 여부, 수어영상전화기의 수, 전동휠체어 급속충전기의 여부 등을 비롯하여 지하철내 장애인 편의시설의 설치 정보를 제공한다. 나아가 지하철의 승강시설의 수와 실태는 서울시 및 교통공사 등 신규 시설 구축을 위한 이해관계자들의 기초 데이터로 활용이 가능한 점에서, 교통약자들의 편의 시설 개선을 위해 활용될 수 있다고 사료된다.

• The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY
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• v.12 no.3
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• pp.234-238
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• 2007

Three different tidal phase-lag references have been used by the tidal research community of Korea: Greek kappa (k), Local standard time zone ($135^{\circ}E$) phase-lag (g) and Greenwich phase-lag (G). This ununified tidal information system may induce confusion in understanding tidal characteristics and their variability and impede the development of tidal knowledge in Korea. In this study we closely explore the three phase-lag reference definition with respect to their mutual conversion. We also identify an incorrect phase-lag reference definition used in previous works and discuss what has led to this misunderstanding.

• Journal of Advanced Navigation Technology
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• v.28 no.3
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• pp.369-374
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• 2024

This study aims to improve the accessibility and efficiency of sign language education for both hearing impaired and non-deaf people. To this end, we developed VR realistic sign language education content that integrates hand tracking technology and conversational AI. Through this content, users can learn sign language in real time and experience direct communication in a virtual environment. As a result of the study, it was confirmed that this integrated approach significantly improves immersion in sign language learning and contributes to lowering the barriers to sign language learning by providing learners with a deeper understanding. This presents a new paradigm for sign language education and shows how technology can change the accessibility and effectiveness of education.

• The Journal of the Convergence on Culture Technology
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• v.10 no.3
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• pp.763-768
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• 2024

This study utilized Q methodology to analyze subjectivity and understand the various factors contributing to the employment difficulties faced by college students majoring in digital content, particularly focusing on practical education. The original data was obtained by administering a Q sample, designed around employment stress and job anxiety, to a purposively selected P sample of 31 individuals, who sorted and classified the statements. The analysis yielded four distinct types: 'lack of practical experience,' 'lack of employment and practical skills,' 'impaired career decision-making and weak will,' and 'lack of mentors and employment information.' Based on these types, the study suggests several implications and solutions, including facilitating student participation in internship programs, offering induction and non-curricular program education, conducting career exploration workshops, and expanding senior mentoring opportunities.

• Journal of the Korean Society of Food Science and Nutrition
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• v.43 no.11
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• pp.1774-1784
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• 2014

The purpose of this study was to determine obstructive factors and performance level of the HACCP system among elementary schools in Gyeongbuk province. E-mail survey targeted 320 dieticians, and recovery rate was 74.1%. Consequently, 227 responses were analyzed. The questionnaire was composed of 58 items under four sections (general characteristics, dieticians' perceived HACCP performance level, dieticians' perceived CCP performance level, and obstructive factors of HACCP system implementation). The item with the highest rate of HACCP performance level was 'HACCP training for foodservice employees in schools ($4.02{\pm}0.70$)' while the lowest counterpart was 'implementation of HACCP team meeting, reporting, and maintenance ($2.74{\pm}0.99$)'. The performance level of the item 'HACCP training for foodservice employees in schools' was perceived as highest when the number of students eating school meals was greater than 1,101 (P<0.05). Moreover, CCP 4 ($4.44{\pm}0.53$) and CP 5 ($4.44{\pm}0.51$) showed the best performance, whereas CCP 1 showed the lowest performance level ($3.90{\pm}0.60$). Therefore, reinforcement of hygiene instruction in menu planning is perceived as necessary. CCP 1, CCP 6 (P<0.05), and CCP 3 (P<0.001) showed significant differences in performance based on the number of students eating school meals. Further, according to results regarding obstructive factors of HACCP system execution, 'general factor' was the most severe obstructive factor in the application of HACCP ($3.46{\pm}0.62$). Among the 'factors pertaining to dieticians', the item 'hardship of proper monitoring and micro-management due to overwhelming workload' was most influential ($3.46{\pm}0.96$). Furthermore, the item 'low budget allocation by educational offices ($3.90{\pm}0.88$)' was influential among the 'factors pertaining to school administrations'. In conclusion, the results of this research can help solve obstructive factors of elementary school food services and provide knowledge that is essential for the proper implementation of HACCP.

• Journal of Life Science
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• v.26 no.10
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• pp.1169-1181
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• 2016

The purpose of this study was to investigate the effects of the regular Upright Body Type Excercise on posture, muscle strength of leg, lung capacity and depression of people with mental illness. The subjects of this study were recruited from B mental health center (5 years and more mental illness patients, n=19) located in P city. For the exercise group, They were carried out the Upright Body Type Excercise Program during 8 weeks (60 min/time, 3 times/week). They were randomly divided into two groups. Exercise group (n=10) and Control group (n=9). And also, they were agreed with consent forms before the experiments. Research results were as follows. Through the upper body type exercise, there was significantly difference in PEF and FEV1/FVC in the trained group. And also, there was much improved in depression level in the trained group. The change of melancholy feeling before and after the program was not statistically significant. However, because of limitations of sampling size due to the peculiarities of the program participants, in consideration of the limit of statistical validation exists clearly, intended to better understand the subjective experience of attendees, qualitative analyzing(qualitative research) was carried out in parallel. It was conducted a deep interview only person accepted among program participants, thematic analysis, subject analysis tasks to be subdivided by classifying by considering the semantic units of what participants expressed, was thus carried out. It found that the degree of melancholy feeling of mental disorders who participated in the Upright Body Typed Exercise Program was reduced. The course of the experience of change in depression appered the three subjects and six sub-themes such as "the start of the change", "interest of the program", "recognition of the need of the body’s health", "physical health promotion", "recovery of physical function", "negative change of habits (attitude)", "reduction of sense of depression", "confidence that it is possible to", "hope for the future". Therefore, upper body type exercise is much helpful in lung capacity and mental health of people with mental illness. So, this type of exercise mostly needed in the people with mental illness group than the other group for the quality of life.