• Journal of the Korean Applied Science and Technology
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• v.35 no.1
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• pp.223-234
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• 2018

The purpose of this study was to analyze the parent-related factors affecting obesity and overweight in school-aged children. The subjects of this study were 408 students of 4th~6th grade and their parents and examined the degree of obesity, obesity-related characteristics, eating habits and exercise habits of children and their parents. The data were analyzed using $x^2-test$, t-test, ANOVA and multiple logistic regression analysis. The results of this study were as follows: father's BMI OR=1.265(95% CI: 1.133-1.412, p<.001), mother's BMI OR=1.214(95% CI: 1.077-1.368, CI: 1.113-1.725, p= .001), the child's eating habit OR=0.953(95% CI: .909- .998, p= .042), the TV watching time OR=1.385(95% CI: 1.113-1.725, p= .004), the economic state OR=0.132(95% CI: .026- .676, p= .015) were factors related affecting obesity and overweight in school-aged children. Children's obesity was influenced by parent's genetic factors, eating habits and living environment factors. Therefore, it is important to motivate the children as well as the their parents and induce the active participation of the program in order to manage the child's obesity.

• Journal of the Korean Applied Science and Technology
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• v.36 no.2
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• pp.507-523
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• 2019

This purpose of study was to Analysis on Location and Service Factors Affecting the Management and Use of Judo Gym. This study aims at providing fundamental data and information on Judo coach by studying what effects of location and use factor on trainee satisfaction. The survey was done through 350 copies and excluding 11 copies ran an analysis on the remaining 339(96.8%) copies. After question investigating the data which is collected used IBM SPSS statistics 21 program, frequency analysis, Exploratory factor analysis, Cronbach's ${\alpha}$, correlation analysis, multiple regression. The result of this study were as follows. First, management, location, coach, trainee value, facility, communication in Judo gym location and use factors showed (+) effects on trainee satisfaction. Second, Program operation, Gym quit use, Whether or not to insure in management factor showed (+) effects on trainee satisfaction. Third, Coach credibility in coach factor showed (+) effects on trainee satisfaction. Forth, Member communication in communication factor showed (+) effects on trainee satisfaction. Fifth, Wholesome leisure, Athletic ability improving in trainee value factor showed (+) effects on trainee satisfaction. Sixth, main facility level, additional facility level in facility factor showed (+) effects on trainee satisfaction. Seventh, Visibility in location factor showed (+) effects on trainee satisfaction. And location type(station area, residential district, commercial area) of Judo gym showed (+) effect on management, trainee value, location, communication, facility.

• Journal of the Korean Applied Science and Technology
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• v.38 no.2
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• pp.411-422
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• 2021

The purpose of this study was to examine the relationship between major satisfaction and university life adaptation according to the amount of physical activity for university students. This study implement survey to the 201 university students. Descriptive statistics, reliability analysis, one-way ANOVA and pearson's correlation analysis were conducted for data analyses. The results are as follows. First, university students' major satisfaction with the amount of physical activity is statistically significantly higher than that of low-intensity physical activity groups (p<.05). Second, university life adaptation according to the amount of physical activity was found to be statistically significantly higher in high-intensity physical activity groups than in medium-intensity physical activity groups and low-intensity physical activity groups (p<.05). Lastly, according to the relationship between physical activity, major satisfaction, and university life adaptation of university students, male students have a static correlation between physical activity, major satisfaction (general satisfaction), and university life adaptation (personal emotion adaptation) and female students have a static correlation between physical activity and university life adaptation(social adaptation) (p<.05). This study confirmed that the amount of physical activity of university students is related to their major satisfaction and adaptation to university life. Based on this conclusion, it is expected that university students will be able to manage their university life through physical activities.

• Journal of the Korean Applied Science and Technology
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• v.36 no.3
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• pp.758-765
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• 2019

The purpose of the this study was to determine the comparative analysis of body muscle activities in plank exercise with and without thera-band. Twelve healthy adult males(age, $21.75{\pm}.57$ years; height, $173.33{\pm}1.34cm$; body mass, $65.92{\pm}1.64kg$; and BMI, $21.93{\pm}.46kg/m^2$) participated in this study as subjects. Plank exercises(full, elbow, side, and reverse plank) were performed with four different thera-band in without(WT), red color(RT), blue color(BT), and siver color(ST). We measured the muscle activities of the erector spinae(ES), deltoideus p. acromialis(DA), external oblique(EO), rectus abdominis(RA), rectus femoris(RF), latissimus dorsi(LD), pectoralis major(PM), and biceps femoris(BF). The research findings were as follows. ES and DA muscle activities were greatest during full plank performed with the WT(p<.05). EO, RA, RF, and PM muscle activities were greatest during full plank performed with the ST(p<.05). ES and DA muscle activities were greatest during elbow plank performed with the WT(p<.05). RF and PM muscle activities were greatest during elbow plank performed with the ST(p<.05). ES, EO, RA, RF, LD, PM, and BF muscle activities were greatest during side plank performed with the ST(p<.05). DA, EO, RA, RF, LD, PM, and BF muscle activities were greatest during reverse plank performed with the ST(p<.05). These results are expected to serve as reference materials for plank exercise applications in training programs for body muscle strengthening.

• Journal of Advanced Navigation Technology
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• v.13 no.4
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• pp.577-585
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• 2009

Various studies on individual health-care application services have been lively going on due to recent development of information and communication technology and improvement of life quality. Moreover, U-health care area is emerging as a new growth industry as the demand of U-health care service for a quality life grows with the development of medical technology and ubiquitous environment. U-health care system for crew members on ships, who need to spend much time on sea far from their families, is especially needed because they find their job much more stressful not only physically but also mentally than any other people in different jobs do and have less chance to get proper medical services in time. In this paper, we suggested how to get more accurate and objective U-health wellbeing index by complementing SF-36, the general heath care index model in order to managing health of crew. Also we designed the U-health wellbeing index service system which can provide appropriate sports programs or diet contents according to health index.

• Convergence Security Journal
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• v.16 no.5
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• pp.17-22
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• 2016

This study examined the current state of ICT utilization in physical education and presented the available physical education ICT contents configuration model. Using ICT in physical education is expected to be an alternative of overcome the bad physical education facilities and environment, also highly utilized as a valuable material that can provide specific feedback in learning motor skill. The types of ICT use in physical education classes are being utilized divided by web-use learning and application program-use learning. In composing physical education ICT contents, the server presents a problem to be solved by each student and encourage cooperative learning. If one team determines the solving idea about learning problem through team discussion, they solve the problem by repeating the process of giving teacher and other team's feedback on determining opinion. On the other hand, the class begins after learning the principle of specific movement utilizing the VTR or computer S/W in the practical training lesson of physical education. If the good hardware and software environment combine with the transformation of the recognition on physical education which has been away from the ICT, it will be able expected a broad using of ICT in physical education.

• Journal of Korean Academy of Nursing
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• v.50 no.2
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• pp.242-254
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• 2020

Purpose: The purpose of this study was to examine the effects of smart-phone app-based walking exercise programs for taxi drivers on self-efficacy and outcome expectations for exercise, health-related quality of life, walking as an exercise, and physiological indexes. Methods: A nonequivalent control group with a pre-post-test design was used. The subjects were recruited in G metropolitan city. Subjects were assigned to the experimental (n=31) or control groups (n=30). The smart phone app-based walking exercise program consisted of educations via the app, twelve short message services, and one individual telephone counseling session, which was spread over 12 weeks. Results: Self-efficacy, outcome expectations, and health-related quality of life had significantly higher pre-post test differences in scores in the experimental group. Additionally, blood pressure, body mass index, and waist circumference had significantly decreased prepost-test difference levels in the experimental group. Walking as an exercise (which consisted of days walked, number of steps walked, and amount of time walked) had significantly increased in the experimental group after 7~12 weeks in the period following the intervention program rather than 1~6 weeks after the program. Conclusion: The smart phone app-based walking exercise program based on the self-efficacy theory demonstrates a significant effect on improving self-efficacy, outcome expectations physical activities, and health-related quality of life for taxi drivers. Therefore, it is recommended to actively use the program as a tool to promote self-efficacy, physical activities, and health behaviors in taxi drivers.

• Proceedings of the Korea Water Resources Association Conference
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• 2012.05a
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• pp.105-105
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• 2012

최근 우리나라는 집중호우로 인한 토석류의 발생이 현저하게 증가하고 있으며, 2002년 태풍 루사와 2003년 매미 그리고 2006년 7월 집중호우 등으로 인한 피해의 규모는 여러 조사와 문헌에서도 확인할 수 있다. 2011년 7월, 서울 우면산 일대에서는 집중호우로 인한 토석류가 발생하였으며, 16명의 인명손실을 포함한 큰 피해가 있었다. 우면산 토석류는 십여 개 지역에서 동시다발적으로 발생하였으며, 토석류 발생 유역 특성과 토석류의 유동특성을 분석하기 위한 현장 조사가 진행되었다. 조사한 자료에 따르면 우면산 일대의 일일 강우량은 서초 기상측정소를 기준으로 최대 24시간 누적 324mm 그리고 시간당 최대 68.5mm/hr를 기록하였다. 상업용 소프트웨어인 FLO-2D는 유사농도의 함수로서 점성(viscous)응력, 항복(yield)응력, 난류 및 분산(dispersive) 응력항을 포함하는 2차 유변학(quadratic rheology) 모델을 기본으로 사용하여 이류(mudflow)와 토석류(debris flow)를 모의할 수 있다. FLO-2D는 흐름의 운동량 및 에너지 보존을 고려하여 격자와 시간에 관계없이 유동심도, 속도, 압력을 예측할 수 있으며, 격자 기반의 모델로서 GIS 및 기타 응용 프로그램들과 연동이 쉽다는 장점이 있다. 그러나 하상침식에 의해 유발된 토석류의 체적 증가는 고려 할 수 없으므로 토석류의 전파 및 퇴적영역에서의 토석류 모의에만 사용할 수 있는 단점이 있다. 이 연구의 목적은 FLO-2D 소프트웨어를 이용하여 우면산에서의 토석류 현상을 재현하는 것이다. 우면산 일대에서 발생한 토석류 중 서초구 방배동의 래미안 아파트 부근에서 발생한 토석류에 대하여 수치지도(DEM)와 현장조사를 통해 얻은 지형자료, 해당 지역의 강우량 및 지질 특성 자료 등을 토대로 FLO-2D 모델을 적용하여 토석류의 흐름특성을 검토한다. 토석류 유동 및 퇴적에 대한 가용한 현장관측 자료와의 비교 분석을 통하여 토석류 특성 값을 산정하고, 모델의 적용성을 검증한다.

• Proceedings of the Korean Society of Propulsion Engineers Conference
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• 2000.04a
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• pp.16-16
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• 2000

충격파를 포함하는 초음속 유동을 해석하는 수치해법 중에서 많이 사용되어진 것은 엄밀 및 근사 리만 해법과 플럭스 분할 기법들로서 이들은 Euler 방정식에 기반을 두고 선형 또는 비선형파의 상호작용을 풍상 차분법으로 기술하는 방법들이다. 이러한 수치기법들은 과거 광범위하게 사용되어 왔으나 최근 여러 가지 단점이 발견되었다. 이와 같은 문제점을 극복하고자 입자의 통계적인 운동을 기술하는 기체 운동론에 근거하여 BGK 수치기법이 제시되었다. 이는 비충돌 볼츠만 방정식으로부터 입자의 수준에서 플럭스 분할 기법 형태의 풍상차분법을 구현하는 것으로 볼츠만 방정식의 충돌항을 BGK 모델로 대치하고 이것의 적분해로부터 수치 플럭스를 구한다. 이 수치기법은 기존의 리만해법에 비하여 수치적으로나 물리적으로 매우 타당한 성질인 강건성, 정확성, 엔트로피 조건, 양수보존성 등을 가지고 있음이 밝혀졌다. 이와 같은 수치기법을 사용하여 로켓 노즐 내의 아음속, 천이음속, 초음속에서의 유동장 해석을 위한 프로그램을 작성하였다. 시간 적분에 대하여는 정상 상태의 계산을 위하여 내재적 시간 적분 방법을 사용하였으며, 공간 이산화 방법으로는 임의의 제어체적에 대하여 적분형 보존 방정식을 적용하는 유한 체적법을 사용하였다. 초음속 입구 유동과 출구에서 초음속과 저음속 유동의 두가지 경우를 고려하여 얻은 결과를 기존의 연구 결과와 비교하여 본 결과 잘 일치하였다. 입구 유동이 저음속이고 출구 유동이 초음속인 경우에 대하여도 해석결과가 실험결과와 잘 일치하였다. 상대적으로 낮은 온도, 압력 조건과 높은 온도, 압력 조건을 가지는 고체 로켓 모터 노즐 내의 유동을 해석하였다. 이들 해석 결과를 전압, 전온도로 표준화시킨 결과 서로 일치하였으며, 파라서 저온, 저압에서 얻은 결과도 표준화시킬 경우, 고온, 고압에서도 사용될 수 있음을 알 수 있었다.의 영향에 초점을 맞추었다.다고 판단되며 배기 가스 자체에 대기 공기중에 함유되어 있던 습기가 얼어붙는(Icing화) 문제가 발생하기 때문에 배기가스의 Icing을 방지하기 위하여 압축기 끝단에서 공기를 추출하여 배기부분에 송출할 필요성이 있는 것으로 판단되었다. 출구가스의 기체 유동속도가 매우 빠르므로 (100-l10m.sec) 이를 완화하기 위한 디퓨저의 설계가 요구된다고 판단된다. 또 연소기 후방에 물을 주입하는 경우 열교환기 및 기타 부분품에 발생할 수 있는 부식 및 열교환 효율 저하도 간과할 수 없는 문제로 파악되었다. 이러한 기술적 문제가 적절히 해결되는 경우 비활성 가스 제너레이터는 민수용으로는 대형 빌딩, 산림, 유조선 등의 화재에 매우 적절히 사용되어 질 수 있을 뿐 아니라 군사적으로도 군사작전 중 및 공군 기지의 화재 그리고 지하벙커에 설치되어 있는 고급 첨단 군사 장비 등의 화재 뿐 아니라 대간첩작전 등에 효과적으로 활용될 수 있을 것으로 판단된다.가 작으며, 본 연소관에 충전된 RDX/AP계 추진제의 경우 추진제의 습기투과에 의한 추진제 물성 변화는 미미한 것으로 나타났다.의 향상으로, 음성개선에 효과적이라고 사료되었으며, 이 방법이 편측 성대마비 환자의 효과적인 음성개선의 치료방법의 하나로 응용될 수 있으리라 생각된다..7%), 혈액투석, 식도부분절제술 및 위루술·위회장문합술을 시행한 경우가 각 1례(2.9%)씩이었다. 13) 심각한 합병증은 9례(26.5%)에서 보였는데 그중 식도협착증이 6례(17.6%), 급성신부전증 1례(2.9%), 종격동기흉과 폐염이 병발한 경우와 폐염이 각 1례(2.9%)였다. 14) 식도경 시행회수는 1회가 17례(54.8%), 2회가 9례(29.0%), 3회 이상이 5례(16.1%)였다.EX>$IC_{50}$/ 값이 210 $\mu\textrm{g}$<

• Cartoon and Animation Studies
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• s.47
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• pp.103-123
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• 2017

In recent years, some of the brands of cosmetics in Korea have launched the BB Cream only for man. Cosmetics is not only necessary for woman and it has been accepted by the male. A programme hosted by 김기수 is aimed to teach the female how to make up. As a result, the comprehension of the gender and the development of the times have been combined closely. The understanding of gender has been developed from binary opposition to the diversity of gender. The movements that were aimed at advocating feminism caused by some events reminded us of that we should pay attention to the equalization of the gender. We can see that people want to liberate themselves from the sexual stereotype through these social phenomenons. Meanwhile, animation advertising has also experienced a transformation, which is from that to shape a role under sexual stereotype to that to pay more attention to the diversity of gender during the progress of shaping a role. During the initial stage of the animation advertising's prosperity, what it described was based on the male. The male was the permanent theme. On the contrary, the female only played a subordinate role. However, with the development of feminism, to realize self-worth of the female and to fight for the gender equality have been mentioned more and more frequently. All these factors have prompted the animation advertising to break the stereotype when shaping a new role and change the sexual stereotype in order to create new animation figures.