• Journal of Multimedia Information System
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• 제6권2호
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• pp.87-90
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• 2019

Machine learning techniques have been applied in almost all the domains of human life to aid and enhance the problem solving capabilities of the system. The field of medical science has improved to a greater extent with the advent and application of these techniques. Efficient expert systems using various soft computing techniques like artificial neural network, Fuzzy Logic, Genetic algorithm, Hybrid system, etc. are being developed to equip medical practitioner with better and effective diagnosing capabilities. In this paper, a comparative study to evaluate the predictive performance of subtractive clustering based ANFIS hybrid system (SCANFIS) with Fuzzy C-Means (FCM) based ANFIS system (FCMANFIS) for Alzheimer disease (AD) has been taken. To evaluate the performance of these two systems, three parameters i.e. root mean square error (RMSE), prediction accuracy and precision are implemented. Experimental results demonstrated that the FCMANFIS model produce better results when compared to SCANFIS model in predictive analysis of Alzheimer disease (AD).

• Design & Manufacturing
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• 제14권4호
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• pp.1-10
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• 2020

The seal plays a role in preventing oil leakage when the lip and the rotating shaft come into contact with the fluid and air pressure. Recently, micro dimples or micro pockets are processed and used on the lubrication surfaces of thrust bearings, mechanical bearings, and piston rings. Compared to a smooth surface, micro dimples reduce friction and increase the life of parts. This paper analyzed various kinds of micro dimple shapes on the sealing surface, i.e. circle, rectangle, triangle, and trapezoid. For this purpose, Introduced the design of experiments to work out a micro dimple configuration, unlikely to be damaged from cracks and low in contact stress. As a result, the triangular dimple showed the best results. Optimal factors were dimple size 0.15 mm, dimple depth 0.0383 mm, dimple density 40%, and the maximum equivalent stress was 9.1455 MPa, and the maximum contact pressure was 9.6612 MPa. This paper analyzed the optimal shape of dimples by finite element analysis. As a research project, experiments and comparative analysis of micro dimple shapes are needed.

• Journal of Information Processing Systems
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• 제17권6호
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• pp.1044-1056
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• 2021

Globalization has integrated the world through interaction among countries and people with the help of information and telecommunication technology (ICT). The rapid mode of globalization has put a new life in ICT and economic sector. The key focus of this study is to examine the nexus among the globalization, ICT and economic growth. This study uses autoregressive distributed lag model (ARDL), vector error correction model (VECM) and econometric method spanning from 1990 to 2015. The empirical result highlights that the globalization stimulates economic growth of a country. In addition, both the internet penetration and the mobile phone usage contribute to the economic growth. Lastly, this article contributes important policy lessons on strengthening the economy by utilizing ICT with the rapid globalization.

• 한국응용과학기술학회지
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• 제39권5호
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• pp.652-665
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• 2022

본 연구는 새로운 운동문화가 형성되어 가고 있는 과도기적 상황에서, 운동을 겸하고 있는 대학에 재학 중인 골프 종목 체육특기자 학생 선수들을 대상으로 그들이 대학 생활에서 자신이 실제로 해 보거나 겪어 본 과정을 근거이론 방법을 바탕으로 심층적으로 조명하고자 하였다. 이를 위해 충청도에 있는 A 대학 골프학전공에 재학 중인 10명의 특기자 학생을 연구 참여자로 선택하였으며, 이들과의 심층 면담을 통하여 자료를 수집하였다. 자료 분석 과정은 Strauss와 Corbin(1990)이 밝힌 분석 방법에 따라 개념에 대해 결론을 끌어내고 개념 간의 관계를 밝히기 위해 코딩 패러다임을 구성하였고, 결과는 다음과 같다. 첫째, 개방 코딩에서 117개 개념, 16개 하위범주, 10개 상위범주가 도출되었다. 둘째로 인과적 조건은 "비대면 수업의 대학 생활", 맥락적 요소는 "실기 운동", "수업 참여"로 범주화하였으며 중심현상은 "골프 종목 체육특기자 학생으로서의 대학 생활 의미"로 보았다. 중재 조건은 운동과 학업을 함께하는 과정을 살펴본 결과 "관계 형성", "능력향상"으로 정리되었으며 작용/상호작용전략은 "학문 연구", "부정적인 생각"으로 범주화했으며, 마지막으로 결과는 "지난 대학 생활 되돌아보기", "정체성", "미래 설계"로 구성하였다. 이러한 연구 결과를 바탕으로 파악된 체육특기자(골프) 학생들의 운동과 학업을 병행하는 삶의 과정에 대한 모형을 근거 이론적 패러다임의 방법 절차에 따라 범주화하였으며, 골프 종목 체육특기자들은 운동 생활이 학업 생활에 긍정적인 영향을 받게 됨에 따라, 쉼이 없는 대학 생활을 이어나가고 있었으며, 그리고 운동과 학업을 모두 포함할 수 있는 학생 선수의 역량 향상을 위한 정책적 시사점을 제시하였다.

• 대한치과기공학회지
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• 제28권1호
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• pp.121-142
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• 2006

Collecting materials for study on teaching efficiency and satisfaction of clinical training, it changes. Dental technology's educational procedure to many ways of a prospect. In a circumstance that needed higher level of education, this study is aimed on realizing an importance of clinical training through the various materials that previously carried out and offering basic knowledge to take better clinical training for the students. Study results below 1. This Investigation conducted on 123 of sophomores(70.3%) and 52 of juniors(29.7%) who have been taken clinical training, and men's proportion(51.45%)is a bit higher than girls(48.6%). The 64% of respondents taken largest proportion were 20 to 24 years old. As 67.9% of respondents attended daytime school and 30.3% of them attended nighttime one, their school time shows a little difference. In a question about relation ship, one answered "Harmonious" took largest proportion by 72.6% during training, and about the degree of satisfaction of campus life who answered "normal" were the most with 59.4%. 2. About the reason choosing dental technology as a major, 41.1% taken the most answered "due to the specialized job", "Getting job easily" was second with 26.9%, and third was "recommended from around" with 18.3%. 50.3% of the respondents answered "normal" about the Satisfaction of their major, student marked in grade "B" most with 51.4% 3. In a investigation result about clinical training statues and preference, most(72.6%) choose place less than 10 for clinical training, and 60.6% of them resided own home. About their commuting time from home to training place, 44% was under 30min, 40% took time 30-60min. It shows students prefer shotter distance in terms of choosing training place. 4. Each part manager took large proportion as a clinical trainer with 33.7%, Training curriculum reform and developing method were most answer as a improvement measure after completing training with 30%. 5. The average of total score about clinical training was 3.15 of 5. In the detailed question, 'satisfaction of clinical training' got 3.38 as a highest score, the lowest score was 2.86 that is about satisfaction of clinical training period. The average score about efficiency of study was 2.86 and in detailed question, 'a Role model' got 3.26 as a highest score and participation of student got 3.05 as a lowest score. 6. The result of T-test to see the difference of the satisfaction according to the general character and clinic training condition between teaching efficiency is that the degree of satisfaction of clinical training showed statistical significance only in the degree of satisfaction of campus life(p<0.05), and teaching efficiency has a statistical significance with their age, grade, and satisfaction of campus life (p<0.05). 7. The relation between of teaching efficiency of clinical training and satisfaction of clinical training of dental technologic student has a statistical meaning in significance leveler 0.01. Now, therefore we suggest following based on these result. 1. To elevate satisfaction of clinical training, it agentry needs development of consistent clinical training curriculum. 2. To grasp the satisfaction and requirement, in needs to measure anxiousness and satisfactory degree after completing training 3. To train efficiently and evaluate efficiency over the teaching activities, it needs to develop measuring tools for teaching efficiency in terms of teacher's important rules in a clinical training. 4. Strengthen the relations with the study developing and managing curriculum gathering theoretical knowledge and practice. And make an effort to apply to their students. 5. Let the trainee take a class setting a belief, sense of value, function and obtain behavior by making the students comfort over clinical training as increasing teaching efficiency.

• Journal of Nutrition and Health
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• 제42권8호
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• pp.750-758
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• 2009

건강한 성인 남자 48명을 대상으로 각각 당근즙 섭취군과 ${\beta}$-carotene 섭취군, placebo 약 섭취군으로 나누어 8주동안 실시하였으며, 당근즙은 매일 300 mL을 주었고 정제된 항산화 비타민은 당근즙에 함유된 ${\beta}$-carotene과 같은 양을 주어 항산화 영양 상태에 대한 개선 효과를 비교하고자 하였다. 그 결과, 혈장 비타민 C, 비타민 E 및 ${\beta}$-carotene 함량은 당근즙 및 항산화 비타민 섭취 전보다 유의적으로 높게 나타났고, 그 증가 정도가 비슷하게 나타나 식품으로부터 항산화 영양소를 충분히 섭취하는 것이 흡연자의 산화적 손상과 관련된 질병을 예방하는 좋은 방법이 될 수 있을 것이라 사료된다.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2010년도 춘계학술대회
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• pp.463-466
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• 2010

본 논문에서는 CCTV를 기반으로 한 화재 감시 시스템 개발을 위하여 기존 센서를 기반으로 하는 화재 탐지 시스템과 영상을 기반으로 하는 시스템들의 장단점을 분석하고 국가적으로 지원하고 있는 U-City, U-Home, U-Campus 등 확산되는 유비쿼터스 환경에 적합한 화재 감시 시스템 모델과 화재를 판별하기위한 기술을 제안한다. 본 연구를 위해 영상을 촬영할 카메라로는 Microsoft LifeCam VX-1000을 사용하였으며, 영상을 촬영하는 코덱으로는 H.264를 사용하였다. 카메라로부터 촬영된 영상 데이터를 가공하여 서버에 전달하는 클라이언트는 Linux OS를 사용하는 ARM9 S3C2440 보드로 제작하였다. 클라이언트와 서버의 영상 데이터 송/수신은 기본적으로 1:1 방식으로 되어있다. 그리하여 카메라의 데이터를 다중으로 수신하기 위한 멀티캐스트 1:N이 가능하게 명세하여, 화재 감시를 위한 다각적 영상 수신 시스템을 설계하였다. 영상 데이터는 RGB 형식을 YUV로 변환하여 전송하며, 화재를 감지하기위한 모션 추출을 위해 Y값을 이용한다. 화재 판별은 붉은 색상을 감지하고 Y값의 움직임을 계산해 화재시 지속적으로 타오르는 불꽃의 모션을 감지하여 판단하는 판별법을 적용한 시스템을 최종적으로 제안한다.

• 직업교육연구
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• 제37권6호
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• pp.63-83
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• 2018

본 연구는 대학생이 개인 발달 단계에서 중요한 시기인 대학생활에 성공적으로 적응하고 나아가 학업적인 성취를 이룰 수 있도록 지원하는 주요 요인을 규명하는 것에 목적을 두고 있다. 이를 위해 개인 특성 요인으로서의 셀프리더십과 사회 환경적 요인으로서의 사회적지지가 학업성취에 미치는 영향력 및 그 과정에서의 대학생활적응의 매개효과를 검증하고자 하였다. 서울소재 4년제 S 사립대학교 재학생을 연구대상으로 하여 최종적으로 271개의 응답을 분석에 사용하였으며, 확인적 요인분석을 통해 측정도구의 구성개념타탕도을 확인하고, 구조모형방정식, 부트스트랩, 소벨테스트를 통해 변수 간 관계를 검증하였다. 본 연구의 결과는 다음과 같다. 첫째, 본 연구는 개인 특성 변수인 셀프리더십 및 사회 환경적 변수인 사회적지지와 대학생의 학업성취 간의 인과관계를 확인하였다. 이는 대학생이 학업에서 성취를 이룰 수 있도록 지원하기 위해서는, 개인 특성적인 요인과 사회 환경적인 요인을 모두 고려한 통합적인 접근이 필요함을 의미한다. 둘째, 셀프리더십 및 사회적지지가 대학생활적응을 통해 학업성취에 간접적인 영향력을 발휘한다는 것이 검증되었다. 이는 대학생활적응이 학업성취의 중요한 선행 변수임을 증명할 뿐만 아니라 셀프리더십 및 사회적지지와 학업성취 사이에서 매개효과를 지니는 주요 역할을 수행하고 있음을 증명한다. 즉, 본 연구의 결과는 대학생이 새로운 교육환경에 잘 적응하여 학업적인 성취까지 이룰 수 있도록 지원하는 개인 특성요인과 사회 환경적 요인에 대한 대학차원에서의 지원 필요성의 타당한 근거를 제시하였다는데 학문적, 실무적인 의의가 있다.

• 동아시아식생활학회지
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• 제13권3호
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• pp.155-166
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• 2003

This study was conducted to investigate the dietary behavior and health-related lifestyles of university students in Incheon arear Self administered questionnaires were collected ken 179 food and nutrition major and non-major students. Statistical data analysis was completed using a SPSS v.10.0 program. The results are summarized as follows: The average weight, height, BMI and PIBW of the major and non-major male and female students were 69.89kg, 172.89cm, 23.4 and 106.49 ; 67.27kg, 173.98cm, 22.2 and 101.35 ; 50.61kg, 161.20cm, 19.53 and 92.25 ; 53.77kg, 161.53cm, 20.56 and 97.18, respectively. The breakfast skipping ratio of the subjects were very high, which was mainly due to the reason“lack of time”More than 75% of male students and 61% of female students responded to have lunch at university canteens or restaurants around campus regularly. About 56% of male students and 68% of female students responded to have dinner irregularly, which mainly caused by the reasons“irregularity of lecture”and “appointment with friends”. The ratio of snacks intake of the subjects were high; Ramyun was the snack item taken the most by the male students and fruits and cookies by the female ones. More than 50% male students and 2% of female students were smokers. A half of students dunk alcohol once or twice a week. The dietary behaviors and health-related lifestyles between major and non-major male students tended to be very similar. The major female students showed more health-oriented dietary behaviors in comparison with the non-major ones. Therefore, they should have a major-oriented and practically organized nutritional education program to correct their dietary behaviors and health-related lifestyles fur health.

• 공학교육연구
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• 제13권5호
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• pp.41-48
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• 2010

In this paper, we proposed "Future Design and Success Engineering in Global Society by Self-Innovation" (an abbreviated name: FDSE). We started to make a small experiment between Korea Maritime University and Yamagata University at the current year. After inspecting the results, especially, successful and unsuccessful points in our lecture, we have to develop the strong points and amend the week points, through making the analysis of success-failure, which is his favorite management method. We have to level up the contents of our work in the future. The students for this lecture would learn from experiences of "the common knowledge (common field of discussion)", held common languages, common thought, common system. They filled up the blanks of "The Matrix Frame" which is mentioned in the previous report, and they expressed their own way of life (work, study). As a matter of course, their personal private affairs must not be made public. It is quite happy that the cultural, economical exchanges between Korea and Japan are now in full flourish and people do a lot of traveling each other. However, if this project will start on the educational global standard, we have a world-wide significance. Moreover, we can promote goodwill between Korea and Japan, and also we can contribute to a better international understanding and the peace of the world by students in both Universities. We hope that candidates for this lecture will have a rounded personality and be a life worthy of human being for realizing Self-Actualization in "Motivation and Personality" by Abraham Maslow.