• Journal of Nutrition and Health
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• 제41권2호
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• pp.165-173
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• 2008

본 연구는 컴퓨터 사용 시간에 따른 고학년 초등학생의 컴퓨터 사용실태, 신체발달, 식생활 습관, 컴퓨터 사용으로 인한 식생활 습관의 변화 및 영양소 섭취 실태에 미치는 영향을 알아보고자 실시하였다. 조사대상자는 초등학생 4, 5, 6학년 학생 265명을 대상으로 설문지를 배포하여 실시하였다. 컴퓨더 사용시간은 하루 2시간을 기준으로 2시간 이상 사용하는 그룹과 2시간 미만 사용하는 그룹의 두 집단으로 분류하였다. 컴퓨터 사용 시간이 긴 그룹이 짧은 그룹에 비해 주별 기준 매일 이용하는 빈도가 더 높았으며, 양쪽 그룹 모두 '컴퓨터 게임을 위하여' 컴퓨터를 사용하고 있었다 (p < 0.05). 컴퓨터를 사용하는 장소와 시간은 대부분 집에서 방과 후 저녁시간에 이용하고 있었다. 신체발달 지표에서도 컴퓨터 사용시간이 길수록 체중과 %RBW가 짧은 그룹에 비해 높았다 (P<0.05). 전반적인 식생활 습관의 경우, 컴퓨터 사용 시간이 긴 그룹의 식생활 습관이 불량하였으며, 섭취하고 식품의 종류도 기름진 음식, 인스턴트 식품 및 단 음식을 더 많이 먹고 있었다. 컴퓨터 사용으로 인한 식생활 습관 변화여부에서도 컴퓨터 사용 시간이 긴 그룹이 끼니를 거르는 정도, 입맛의 변화, 식사속도, 식사량, 체중감소, 운동빈도 및 수면 등이 더 불량한 것으로 나타났다 (p<0.05). 이상의 결과에서 컴퓨터 사용 시간이 길어질수록 아동의 신체발달, 식생활 습관 및 영양소 섭취 상태에 부정적인 영향을 끼친 것으로 나타났다. 따라서, 장시간의 컴퓨터 사용으로 인한 바람직하지 못한 식생활과 잘못된 식습관의 고착을 예방하기 위해서는 학생들 스스로가 컴퓨터 사용시간에 대한 자율적 조절을 할 수 있는 교육 및 지도는 물론 이와 연계한 효과적인 영양교육의 정착 및 실천이 우선되어야 할 것으로 사료된다.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2000년도 제15차 학술회의논문집
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• pp.414-414
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• 2000

This paper presents a method for building a real-time kernel of autonomous mobile robot control systems. Until now, most of robots have their own operation softwares dedicated only for their use. Sometimes, operation softwares were developed based on MS-DOS or other real -time kernel based on UNIX. However, MS-DOS has many restrictions for use as a robot operation system. Also, mix based real-time kernel has some Limitations for use with mobile robots. So, in this paper, we focus on building a real-time kernel based on Linux. The in this paper, the software modules of Task Management, Memory Management, Intertask Communication, and Synchronization are redesigned. To show the efficiency of the paper, it was applied to run Nomad Super Scout II avoiding obstacles detected by sonar sensor array.

• 영어어문교육
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• 제17권3호
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• pp.309-326
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• 2011

This study examines the relationship between second language use outside of class and oral proficiency development. It first identifies out-of-class activities of international graduate students in the U.S. and the average time spent speaking English in those out-of-class activities. Interviews and student self-measurements of time spent speaking English each day were used to investigate the types and quantities of out-of-class activities. In addition, two sets of student oral proficiency test scores were collected. Correlation analysis is used to find out the relationship of the variables between the most salient out-of-class activities and oral proficiency gains. The findings indicate that second language use outside of class is important for international graduate students to improve their oral proficiency. This is especially true with regularized interaction such as talking at work and the average time spent speaking in English a day outside of class. This study suggests that learners of English in an ESL environment should be encouraged to take part in out-of-class activities in addition to English use in the classroom in order for them to improve their oral proficiency.

• 대한가정학회지
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• 제39권6호
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• pp.51-60
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• 2001

The purpose of this study is analyze buying time use and it's influential factors of buying types. The major findings are follows: (1) Physiological time, household work time, earning time & leisure time are respectively similar to The Investigation of Korean Life Time(1991,1995). (2) Buying time of wives who perceived time deficit are shorter than those who did not perceive so. (3) Internet shopping time is 18minutes, direct visiting shopping time is 68minutes and those who directly visit shops pursued leisure effect. (4) Influential factors of internet shopping time are educational level, household work time, earning time & leisure time and direct visiting shopping time are husband's job, household work time, earning tile & leisure time.

• 디지털산업정보학회논문지
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• 제9권2호
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• pp.23-32
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• 2013

The purpose of this study is to make effective mobile grid considered general environment, which can be summarized as irregular mobility, service exploration, data sharing, variety of machines, limit to the battery duration, etc. The data was extracted from the Dartmouth College. We analysed mobile use pattern of a specific group and applied pattern using hybrid method. As a result, we could adjust infra usage effectively and appropriately and cost cutting and increase satisfaction of user. In this study, by applying weighting method based on access time interval, we analysed use pattern added time variation with association rule during users in mobile grid environment. We proposed more stable way to manage patterns in a mobile grid environment that is being used as a hybrid form to process the data value received from the server in real time. Further studies are needed to get appropriate use pattern by group using use patterns of various groups.

• International Journal of Human Ecology
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• 제13권2호
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• pp.53-67
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• 2012

This study uses the 1999-2009 Korean Time Use Survey to explore how mothers' employment affects parental time spent in activities that may relate to their children's weight. Specifically, it estimates two-part regression models to assess the effects of maternal employment upon the amount of time mothers spend in activities potentially related to their preschool children's eating and physical activity. The findings suggest that working mothers and those mothers who work longer hours allocate significantly less time in food preparation, eating with the child, and supervising the child's physical activity than mothers who are not employed and those who work fewer hours. The paper also finds that spouses of working mothers do not allocate more time to these activities to offset the reduction in mothers' time. Also, using local unemployment rates as instrumental variables, maternal employment is found to allow mothers to spend significantly more time on food preparation and family meals, although its effect on mothers' total childcare time is negative. Several aspects of Korean society may have made the relationship between maternal employment and childhood weight issues different from what was found in other countries.

• 수산해양교육연구
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• 제27권1호
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• pp.203-217
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• 2015

The purpose of the study is to explore leisure time use of older adults and find out relationships between active/passive leisure activities and socioeconomic backgrounds in order to prepare later life for homo hundred. The subjects were 336 adults aged 50 and over in Busan city, Korea. Results are as follows. First, the subjects spent more time in active leisure than passive. But ratio of passive leisure time is getting higher with age. Second, cognitive activities changed from reading, computing, internet to hobbies, card games with age. Third, participation of active leisure activities are related to age and socioeconomic backgrounds. From this study, lifelong education including leisure education should support older adults to redesign their later life for homo hundred. Second, leisure education should focus on increasing the ability of accepting and utilizing leisure opportunities for older adults. Third, the role of lifelong educator should be emphasized to involve education field more actively. Forth, lifelong education institutions should have the knowledge of the purposes and motivations of older adults who participate in order to provide proper programs continuously. The connection between lifelong education and leisure time use and activities would lead later life with the quality of life and active aging.

• 동아시아식생활학회지
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• 제21권2호
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• pp.185-193
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• 2011

The purpose of this study was to determine the effects of nutrient intake, screen time (television viewing and computer and/or video games) and physical activity on obesity in preschool children. Recruitment began in January 2008 by distributing letters to mothers who had children aged 6 years enrolled in daycare. Dietary intakes were obtained from the children's mothers, using the 24-hour recall method. The average height and weight of the children were 114.2 cm and 20.3 kg, respectively. Mean age, body weight, height and Kaup index were not significantly different between groups consisting of boys or girls. Assessment by the Kaup index showed that 14.0% of children were underweight, 69.0% were normal weight, 13.0% were overweight, and 4% were obese. The daily intakes of calcium, potassium, fiber, and folic acid in the group of boys were 77.7%, 58.5%, 80.4% and 88.9% respectively. as compared with the DRIs. The daily intakes of calcium, potassium, fiber, and folic acid in the group of girls were 77.7%, 58.5%, 80.4% and 88.9%, respectively. as compared with the DRIs. Intakes of protein, phosphorus, iron, zinc, vitamin A, thiamin, riboflavin, niacin, vitamin C, and vitamin E were higher than the DRIs. There were no difference among 3 groups (underweight, normal, overweight) in energy or nutrient intake. Preschool children with screen time (TV viewing and computer and/or video games use time) of >2 hours per day had significantly higher Kaup index values, and intakes of energy, carbohydrate, folic acid and zinc. In conclusion, preschool children with reported screen time (TV viewing and computer and/or video games use time) of >2 hours per day were fatter. Therefore, we need further investigate the relation between diet and screen time in preschool children to improve future nutrition education programs. Further studies are required to explore the effects of food intake and screen time (TV viewing and computer and/or video games use time) over a longer period of time.

• 대한지역사회작업치료학회지
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• 제4권1호
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• pp.1-10
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• 2014

목적 : 본 연구의 목적은 지역사회와 시설에 거주하는 뇌졸중 환자의 시간 사용과 삶의 질을 비교 분석하고자 한다. 연구방법 : 연구 대상은 요양병원에 입원 중이거나 외래로 재활치료 중인 뇌졸중 환자 74명을 대상으로 하였다. 일반적 특성, 작업 설문지(Occupational Questionnaire: OQ), 뇌졸중 환자 삶의 질(Stroke Specific Quality of Life: SS-QOL) 평가를 통해 조사하였고, 대상자 선정 기준에서 부적합한 8명을 제외한 총 66명을 대상으로 비교 분석하였다. 결론 : 거주 환경에 따른 시간 사용을 비교 분석한 결과 일상생활(p<.05), 휴식(p<.05)에서 유의한 차이가 있는 것으로 분석 되었다. 또한 삶의 질은 가족(p<.05), 자조관리(p<.05), 사회적 역할(p<.05)에서 유의한 차이가 있는 것으로 분석되었다. 결론 : 지역사회 거주 뇌졸중 환자가 시설 거주 뇌졸중 환자보다 일상생활과 휴식에 소비되어지는 시간을 효율적으로 사용을 하였고, 삶의 질 또한 높은 것으로 나탔다.

• 가족자원경영과 정책
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• 제27권4호
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• pp.63-74
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• 2023

본 연구는 생활시간의 배분과 균형이 삶의 질을 좌우하는 중요한 요인으로 보고 생활시간의 관점에서 시간사용에 대한 만족감을 통해 기혼여성이 느끼는 행복의 단면을 파악해보고자 하였다. 생활시간조사 자료를 통해 세대별 생활시간구조를 살펴보고, 생활시간의 관점에서 행복에 영향을 미치는 요인을 분석해 보았다. 기혼여성의 행복을 시간차원의 측면에서 분석한 결과, 세대별로 행복을 느끼는 정도와 행복에 영향을 미치는 요인이 다르게 나타났다. 경제활동을 하는 기혼여성의 경우, 베이비붐세대와 X세대의 행복에는 의무시간인 주업시간의 영향력이 가장 컸으며, Y세대의 행복에는 돌봄필요가구원 여부의 영향력이 가장 컸다. 반면, 경제활동을 하지 않는 기혼여성의 경우, 베이비붐세대와 X세대는 자유롭게 사용할 수 있는 봉사 및 여가시간에 따라, Y세대는 성역할태도에 따라 행복수준이 크게 좌우되는 것으로 나타났다. 이처럼 생활시간관점에서 기혼여성이 느끼는 행복수준이 세대에 따라, 그리고 경제활동여부에 따라 다르고, 또 그 영향요인 또한 세대와 경제활동여부에 따라 다르다는 연구결과는 기혼여성 대상 가족정책 수립에 시사하는 바가 크다.