• Proceedings of the KOSOMBE Conference
• /
• v.1994 no.05
• /
• pp.92-95
• /
• 1994

We developed electric wheelchair INMEL-VI which is motorized wheelchair for practical use. The field test results of long time show some problems to disabled in daily use. INMEL-VII is designed to solve the problems of INMEL-VI and to adjust condition by the Korean Industrial Standards about the motorized wheelchair. Especially, it is improved to have durability, driving safety, and convenience of manipulating. In the driving field test in indoors and outdoors, it has been estimated to have a high practical use for powered walking aids to disable's daily life.

• Korean journal of food and cookery science
• /
• v.17 no.6
• /
• pp.533-541
• /
• 2001

This research was carried out to obtain the information about the use of deep-fat-fried foods and treatment of oils used for deep-fat-frying at home. Data were obtained through questionnaires from 442 housewives in Chonbuk area. The frequency of taking deep-fat-fried foods was affected by ages and residential area. Average score for the preference of deep-fat-fried foods was 3.60 in the 5 point scale. Fifty three percent of the respondents prepared deep-fat-fried foods by themselves at home. The oil most commonly used for deep-fat-frying was soybean oil followed by com oil. Proper frying temperature was determined by dropping salt or food coating materials into the oil. Oil color was used as a parameter for determining the life of frying oils by 81.2% of the respondents. Most of the respondents appealed to use oils one more time after filtering. For the disposal of used frying oil, 65.7% of the respondents used some kinds of absorbing papers; 16.1% made soaps and 10.7% discarded into a sink. According to correlation analysis, the frequency of taking deep-fat-fried food had positive relationships with housewives's health status, preference for foods prepared with oil and fats and family's preference for deep-fat-fried foods.

• Journal of Korean Society of Rural Planning
• /
• v.10 no.4 s.25
• /
• pp.9-18
• /
• 2004

The purpose or this study is to simulate spatially the urban expansion phenomena with a cellular automata (CA) technique using GIS. A study area, Suwon city, was selected for test of model verification and application with the classified land-use maps of three data years: 1986, 1996, and 2000. The urbanized potential maps were generated with seven criteria of one geographic factor (slope of land), and six accessibility factors (time distances from city, national road, Seoul, station, and built-up boundary), considering their weighting values, which were optimized by WSM (weighted scenario method for intensity order) combined a ranking method and a AHP technique. The optimized weighting values at the urban expansion between 1986 and 1996 were applied to verify the CA model for the other expansion between 1996 and 2000. The results of model application showed that urban sprawl phenomena of the urban expansion toward rural area can be simulated spatially and temporally with several boundary conditions considering various scenarios for the criteria and parameters of the model. Ultimately, this study can contribute to reference data for land-use planning of urban fringe areas.

• The Journal of Korean Academic Society of Nursing Education
• /
• v.18 no.1
• /
• pp.141-148
• /
• 2012

Purpose: The purpose of this study was to determine the factors associated with video display terminal (VDT) syndrome in students who use digital textbooks. Methods: A descriptive survey design was used, and 515 students were selected in 6 out of 20 designated as digital textbook research schools by the Ministry of Education, Science and Technology (MEST). Results: The subjective symptoms of VDT and their degree of severity in participants were similar to those in general students. Approximately 12.5% of the participants were classified as a potential risk group for VDT syndrome. In the potential risk group, the mean of the subjective symptoms of VDT was above normal ($2.53{\pm}0.52$). Related factors were identified using logistic regression analysis and included being female (odds ratio [OR]= 2.57, p=.002), communication time with family (<30 min) (OR=2.70, p=.006),moderate satisfaction with school life (OR=2.57, p=.003),and dissatisfaction with school life (OR=14.92, p<.001). Conclusion: In order to prevent the occurrence of VDT syndrome in students, it is necessary to urgently establish a preventative program and monitor the use of digital textbooks.

• Journal of the Korean Society for Library and Information Science
• /
• v.44 no.3
• /
• pp.117-135
• /
• 2010

This study investigated how college students seek and use information sources in their everyday lives. A total of 360 students from twelve colleges located in Seoul were randomly selected and participated in this study. The survey asked them what kind of information sources they use in their everyday life and what differences it has when they seek the information sources for their decision making time. Various criteria for evaluating information sources were reviewed to adopt in this study and collected data were analyzed using SPSS 17.0.

• Asian Journal for Public Opinion Research
• /
• v.11 no.1
• /
• pp.4-30
• /
• 2023

Previous research has empirically demonstrated the negative effects of social media use on young people's psychological well-being. Unlike most previous studies that focused on either Facebook or Instagram, this study comparatively examined the differences in upward comparison and its effects on self-esteem, life satisfaction, and depression between Facebook and Instagram. An analysis of survey data from 641 Korean college students, who reportedly use these two social media more actively than any other age group, found that college students experience more upward comparisons on Instagram than on Facebook. Upward comparisons on both Facebook and Instagram increased by college students' age and weekly usage time. Upward comparisons on Instagram increased by the additional factors of gender (females more than males) and number of "followings." Subsequently, the effects of upward comparison on psychological well-being were found to differ by social media platform. Upward comparisons were found to negatively impact all determinants of psychological well-being only on Instagram, but not on Facebook. The differences in upward comparison and its impact on young users' psychological well-being found in this study were discussed in terms of the different functional characteristics of the two social media platforms, which provides direction for further research needed to establish guidelines for healthy social media use by young people.

• Korean Journal of Child Studies
• /
• v.17 no.1
• /
• pp.137-152
• /
• 1996

The goal of this study was to investigate how daily experiences of schoolwork and leisure activities explained cultural differences in levels of adolescent depression. A combined sample of 58 high school seniors in Korea and 62 high school seniors in the United States reported time use patterns and affect states in daily activities and levels of depression. The time use pattern in daily independent study during class hours and in active leisure activities significantly explained cultural differences in levels of depression. Affect states in all schoolwork activities and passive leisure activities also significantly explained cultural differences in levels of depression. These findings suggest that Korean adolescents' experience of 'exam hell', particularly the lack of active leisure activities and more negative emotional experiences of daily activities are partly responsible for their higher depression relative to American counterparts.

• Journal of Families and Better Life
• /
• v.24 no.5 s.83
• /
• pp.101-112
• /
• 2006

This study examined factors related to the motivation for the uses of cellular phones and the relationship between motivation for cellular phone use and parent-child communication among middle school students. A total of 223 questionnaires were submitted and analyzed. The characteristics of motive structure of the middle school students were found as recreation, time management, information-seeking, reassurance and fashion/showing off. Among those motivations, these middle school students examined here were found to use cellular phones in similar ways to how conventional telephone is used such as work/instrumental reasons and socializing/entertaining. The motivations showed a significant association with the level of parent-child communication. Information-seeking and time management motivation were positively related with an open communication level while fashion/showing off and recreation were negatively related with an open communication level.

• Journal of Korean Dental Hygiene Science
• /
• v.2 no.2
• /
• pp.21-30
• /
• 2019

This study identifies oral health behavior factors related to the health-related quality of life(EQ-5D) of adults. Three groups are analyzed, young adults(aged 19 to 39 years old), middle-aged(40 to 64 years old), and elderly(over 65 years old). By comparing the factors related to health-related quality of life by age, we will provide information for improving the overall quality of life, including oral health for current and future elderly. Using raw data from the 1st year(2016) of the National Health and Nutrition Survey, the oral health behaviors of the study subjects were compared. These included: the number of times teeth were brushed, the time brushing took place, the use of interdental care products, and whether they went for oral and examinations. There was a statistical significance in treatment experience and drinking habits. There was also a significant influence on the health-related quality of life across the age groups. Therefore, it is possible to improve the health-related quality of life, including oral health practices according to age. It will be necessary to develop and apply.

• Journal of the Korean Solar Energy Society
• /
• v.31 no.1
• /
• pp.23-30
• /
• 2011

International cooperation to reduce greenhouse gas emissions is expected to provide a big crisis and a great opportunity at the same time for our industry that heavily consumes energy. To cope actively with the international environmental regulation, such as the Framework Convention on Climate Change, quantitative measurement of the volume of greenhouse gases emitted by various industries and quantitative prediction of the greenhouse gas emissions of the future are becoming more important than anything else at the national level. This study aims to propose the calculation process of carbon dioxide($CO_2$) emission for building in life cycle. This paper describes and compares 9 different tool for environmental load estimation with LCA. This study proposed the calculation process for quantitatively predicting and assessing $CO_2$ emissions during the life cycle of buildings based on the life cycle assessment(LCA). The life cycle steps of buildings were divided into the design/supervision, new construction, repair, renovation, use of operating energy in buildings, maintenance, and reconstruction stage in the life cycle inventory analysis and the method of assessing the environmental load in each stage was proposed.