• Korean Journal of Community Nutrition
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• v.11 no.2
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• pp.161-171
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• 2006

This study was carried out to investigate the dietary attitudes and nutritional status of preschool children in different income levels in Busan. The survey was conducted from November 1 to November 30, 2004 by questionnaires mid data analyzed by the SPSS program. The results are summarized as follows: The Kaup index of the upper income class group was higher than that of the other income classes. In the middle income class group, nutrition knowledge scores were higher than in any other income class. Sixty-four point nine percent of the upper income class children, 25.7% of the middle income class children and 15.7% of the low income class children had nutrition education experiences. Intake of protein was higher than that of the Korean recommended dietary allowances (RDAs) for children. In the upper income class group, intake of calcium was higher than in any other income class. Intakes of calcium and iron were lower than those of the RDAs in all children. Dietary attitude had positive correlation with frequency of breakfast, time for outdoor activity, and height and weight, and had negative correlation with frequency of fast food and time for watching television. Frequency of snack had positive correlation with frequency of fast food and time for watching television, but frequency of breakfast had negative correlation with those. These results indicate that nutrition education programs linking parents to children should be carried out to improve their nutritional status.

• The Journal of the Korea Contents Association
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• v.7 no.7
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• pp.87-95
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• 2007

On this study, we researched differences between 2D and 3D with principle of GUI with the estimate that the user interface will be changed to 3D and we figured out the special feature of 3d-GUI through 3 ways, Autonomy, Interaction and Presence. Based on this theory research, we also had a survey with difference of 3d and 2d GUI to forecast the possibility of 3d-GUI for the main user interface of the future media contents and finally found out its marketability as an ideal interface.

• Proceedings of the Korean Association for Survey Research Conference
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• 2001.04a
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• pp.1.2-35
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• 2001

On the election day of the 16th Korea national Assembly, nationwide TV stations such as KBS, SBS and MBC broadcasted election forecasting based on telephone surveys and exit polls. The result turned out to be significantly wrong, undermining general audience's confidence on the 'ientific'surveys. The purpose of this study consists of the followings. I) What form of telephone surveys and exit polls were adopted by survey institutions in real field\ulcorner ii) What were the problems\ulcorner iii) What can we do to make it straight\ulcorner Major findings of the study include the ignorance of call-back rules in telephone survey and the inadequate number of sampled election posts to make satisfactory forecasting. It is pointed out that it is necessary to amend election laws related to election opinion polls to make a substantial progress.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2008.02a
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• pp.29-32
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• 2008

DMB가 출범한지 2007년을 기준으로 3년을 맞이했다. DMB에 대해서는 일반적으로 많이 알려졌으며 새로운 방송 시스템으로 분명 뛰어난 기술이다. 하지만 방송 현업 종사자의 시각에서 볼 때 시청자들의 호응도는 답보상태에 머물고 있다고 판단된다. 방송위원회의 2007년 12월 조사 결과를 보면 DMB는 국민의 60% 이상이 향후에도 구입할 의향이 없다고 조사되었다. 그 이유는 기존방송을 재전송 하고 있는 상황에서 DMB에 맞는 영상 콘텐츠의 부족함으로 볼만한 콘텐츠가 없다는 것과, 작은 화면으로 인한 시각적 불편함 때문이라는 것이다. 또한 방송 초기 유료와 무료 여부에 대한 국가의 정책결정 등의 문제점이 복합적으로 작용하고 있다. 그 외의 불만 사항으로는 서비스 만족도에서 수신가능 지역에 대한 불만이 63.7%로 가장 많았고 배터리 수명의 한계에 대한 불만 54.4%와 단말기 가격에 대한 불만사항 등이 뒤를 이었다. 이런 상황을 종합해 볼 때 DMB는 당초 예상했던 것처럼 황금 알을 낳는 거위가 아니라는 것과, 신규미디어로서 새로운 콘텐츠의 수요창출에 그다지 성공적이지 못 함을 알 수 있다. DMB의 성패는 시청자의 활용도에 따라 판가름 난다고 본다. DMB 기존의 방송을 재전송하고 있다. 하지만 기존의 방송과는 다르게 DMB 자체의 특성에 적합한 콘텐츠로 제작되어야 할 것이다. 이러한 재전송의 문제점을 개선하고 보다 나은 제작방안을 제시하여 시청자들의 DMB 방송 접근 확대화와 활성화가 본 논문의 연구 목적이다.

• Survey Research
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• v.2 no.1
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• pp.1-35
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• 2001

On the election day of the 16th Korea National Assembly. nationwide TV stations such as KBS. SBS and MBC broadcasted election forecasting based on telephone surveys and exit polls. The result turned out to be significantly wrong. undermining general audience's confidence on the “scientific” surveys. The purpose of this study consists of the followings. i) What form of telephone surveys and exit polls were adopted by survey institutions in real field\ulcorner ii) What were the problems\ulcorner iii) What can we do to make it straight\ulcorner Major findings of the study include the ignorance of call-back rules in telephone survey and the inadequate number of sampled election posts to make satisfactory forecasting. It is pointed out that it is necessary to amend election laws related to election opinion polls to make a substantial progress.

• Journal of the Institute of Convergence Signal Processing
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• v.11 no.4
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• pp.278-288
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• 2010

In this paper, we carried out quality assessment and analysis of stereoscopic 3D Television pictures according to ITU-R contribution and recommendation by rating scales using DSCQS (Double-Stimuli Continuous Quality Scale) method. The evaluation results show that overall quality and sharpness of stereoscopic pictures revealed almost no difference compared to cases of mono pictures as to natural outdoor scenes, graphic images, and indoor scenes (about 3.0 above ~ 4.0), but depth perception and sensation of reality of stereoscopic images exhibit better quality performance over mono images as indicated more than 4.0 out of 5.0 grade. Evaluation results should be considered as human factors such as disparity when shooting and/or editing 3DTV.

• Journal of the Korean Society of Food Culture
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• v.21 no.4
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• pp.375-380
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• 2006

The purpose of this study was to research eating-out information search methods according to college student's lifestyle and their influences on overall satisfaction at fast-food restaurants in eastern province of Kangwondo. Lifestyle was divided into 7 factors and 6 clusters. According to the results, information search methods through Newspaper, magazine and word of mouth were used the most preferably by Cluster 3, 'Brand preference intention'. And TV advertising was used the most preferably by Cluster 4, 'Convenience intention', and the advertisement through internet was used the most preferably by Cluster 5, 'Health ${\cdot}$ effort intention'. However, Information searches through TV advertising and word of mouth had negative influence on the overall satisfaction. But method through internet had positive influences on the overall satisfaction. Eventually, it's proved that information search methods had significant differences according to student's lifestyle. And some information search methods influenced their overall satisfaction. Therefore, food-sonics corporations need to try reducing negative images of various advertisements and activating positive aspects of specialized promotion instruments.

• The Korean Journal of Food And Nutrition
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• v.24 no.4
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• pp.680-686
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• 2011

The purpose of this study was to analyze information about food and nutrition topics presented throughout the television broadcast media, thereby find out the optimal communication method to give desirable information to the general public. To perform this study were recruited and trained by monitoring education before and during the study. 3 domestic TV channels were selected to be monitored, for 3 months. Results of this study were as follows: First, the total reporting cases of information about foods and nutrition were 154, When each monitored contents was seen from the domain of programs, 128 cases(83.1%) were from current affairs and information program, and 26(16.9%) were from entertainment program. Second, according to survey by channel cases are 26(16.9%) from KBS, 54 cases(35.1%) from MBC, 74 cases(48.1%) from SBS, which means SBS reported the most about nutritional foods. Third, the frequency of reporting information on the overall diet and food & ingredient, cuisine & cookey, health & diet therapy and obesity & diet in order. Forth, among the 26 cases of positive or negative implications made by each cannel of KBS, 18 cases were delivered in positive ways, 7 cases had positive and negative point of views mix together, and 1 cases was negatively delivered. Finally, the most important thing is to organiae the advisory team by connecting mass media and specialist, and the educational program of nutrition should be developed for the communication of right information about foods and nutrition.

• Journal of Korean Elementary Science Education
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• v.35 no.2
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• pp.194-204
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• 2016

The purpose of this study is to find out the relationship between types and sources of background knowledges of elementary preteachers' questions about astronomy contents in the elementary science text books. Data were extracted from the preteachers' classes established in a university of education. The results are as follows. First, right background knowledges of questions were found in about 58% questions, wrong background knowledges 15%, and no background knowledges 26%. Second, it was found that 'school' as a source of background knowledges was found in 29% questions, 'friend' 21%, 'internet' 14%, 'book reading' 12%, 'others' 9%, 'TV' 7%, 'institute' 4%. In case of the type that right background knowledges have casual relation or correlation with question contents, 'book reading' and 'TV' sources rate increased, but 'internet' and 'others' decreased when compared to total questions. In the type which background knowledges are right and did not have casual relation or correlation with question contents, 'internet' source rate increased and 'friend' decreased. In case of the type that wrong background knowledges do not have casual relation or correlation with question contents, 'friend' and 'TV' sources rate increased, but 'school' and 'book reading' decreased. The type which background knowledges are right and did not have casual relation or correlation with question contents, 'internet' source rate increased and 'friend' decreased. In case of the type of no background knowledges, 'TV' and 'institute' source rate increased, but 'internet' and 'book reading' decreased. Third, the questions in 'Earth and Moon' unit have little background knowledges. The questions in 'solar system and stars' have background knowledges with no relation to the questions. Especially, in the unit 'changes of seasons', right background knowledges were found in more than half questions, but the contents of questions and background knowledges were not connected scientifically.

• Journal of the Ergonomics Society of Korea
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• v.32 no.2
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• pp.207-215
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• 2013

Objective: This study aimed to investigate important human factors that should be considered when developing ultra-high definition TVs by reviewing measurement methods and main characteristics of ultra-high definition displays. Background: Although much attention has been paid to high-definition displays, there have been few studies for systematically evaluating human factors. Method: In order to determine human factors to be considered in developing human-friendly displays, we reviewed subjective and objective measurement methods to figure out the current limitations and establish a guideline for developing human-centered ultra-high definition TVs. In doing so, pros and cons of both subjective and objective measurement methods for assessing humans factors were discussed and specific aspects of ultra-high definition displays were also investigated in the literature. Results: Hazardous effects such as visually-induced motion sickness, visual fatigue, and mental fatigue in the brain caused by undesirable TV viewing are induced by not only temporal decay of visual function but also cognitive load in processing sophisticated external information. There has been a growing evidence that individual differences in visual and cognitive ability to process external information can make contrary responses after exposing to the same viewing situation. A wide vision, ultra-high definition TVs provide, can has positive and negative influences on viewers depending on their individual characteristics. Conclusion: Integrated measurement methods capable of considering individual differences in human visual system are required to clearly determine potential effects of super-high vision displays with a wide view on humans. All of brainwaves, autonomic responses, eye functions, and psychological responses should be simultaneously examined and correlated. Application: The results obtained in this review are expected to be a guideline for determining optimized viewing factors of ultra-high definition displays and accelerating successful penetration of the next-generation displays into our daily life.