• 한국식생활문화학회지
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• 제27권1호
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• pp.38-48
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• 2012

This study was conducted to examine dietary behaviors according to residence status and ethnicity of university students in Yanbian, China. For the subjects, 334 university students (Male=141, Female=193) answered a questionnaire about perception of weight control, dietary patterns, health habits, residence status, and ethnicity. Perception of weight, meal frequency, favorite kind of food, meal finishing time, skipping breakfast, type of breakfast, snack frequency, late-night snack frequency, exercise frequency, regular life, and sleeping time were all significantly associated with residence status. Motivation of weight control, meal frequency, regularity of meal time, meal volume, favorite kind of food, exercise time, and regular life were all significantly associated with ethnicity. University students who lived with their parents perceived their weight more properly, exhibited a more positive dietary pattern, and lived a more regular life than those students who lived in a dormitory with their friends. Chinese students exhibited a more regular dietary pattern and lived a more regular life than the Korean-Chinese students. As a result, both environmental and inherent factors are related with the dietary behaviors of university students in Yanbian, China. These data could be used to help university students in Yanbian, China attain a healthy diet.

• 한국컴퓨터정보학회논문지
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• 제24권12호
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• pp.175-182
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• 2019

최근까지 온라인 비즈니스 환경에서 사이버머니의 이용과 관련한 다수의 연구들이 진행되었음에도 불구하고 이들 대부분의 연구들은 사이버머니 이용자의 특성과 사이버머니 품질간의 관련성을 심층적으로 제시하지는 못하고 있는 것이 현실이다. 이에 따라, 본 연구에서는 사이버머니 이용경험이 있는 사람들을 대상으로 설문조사를 실시함으로써, 향후 사이버머니의 활성화 측면에서 어떠한 사이버머니 품질특성을 가장 중요하게 인식하고 있는가를 파악하고자 하였다. 또한, 이러한 사이버머니 품질특성에 대한 인식도가 사이버머니 이용자의 인구통계적 특성과 사이버머니 이용특성에 따라 어떻게 달라지는가를 조사하고자 하였다. 분석결과, 사이버머니 품질특성에 대한 인식도가 사이버머니 이용자의 성, 연령, 사이버머니 이용빈도에 따라 달라짐을 확인할 수 있었다. 본 연구에서의 분석결과는 다양한 온라인 비즈니스 환경에서 사이버머니의 이용방안을 모색하고 있는 국내외 다수의 기업들에게 다양한 시사점을 제공할 수 있다고 판단된다.

• 한국광학회지
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• 제28권6호
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• pp.334-338
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• 2017

본 연구는 과학교사를 대상으로 물질의 굴절률에 대한 인식을 조사하여, 굴절률에 대한 올바른 정보 전달과 수업 지도의 시사점을 주는데 그 목적이 있다. 구체적으로 설문지를 제작하여, 현장에서 구하기 용이한 액체들의 굴절률에 영향을 주는 요인들에 대한 교사들의 인식을 조사하였다. 연구 결과 분자의 구조, 단위 부피당 분자 수 및 분자의 질량, 빛의 파장 등 다양한 요인들 중, 과학 교사들의 80.0%는 밀도가 굴절률에 가장 크게 영향을 미칠 것이라고 인식하는 것으로 나타났다. 이는 기존의 교과서에서 빛과 역학적 파동의 유사성에 기초하여 굴절을 설명하는 것에 의해 발생한 오개념으로, 과학교사들의 이러한 인식은 학생들에게 오개념을 심어줄 가능성이 크다.

• 동아시아식생활학회지
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• 제8권2호
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• pp.147-155
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• 1998

This study was carried out to investigate 192 female college students in Seoul area in order to know their dietary behavior regarding weight control, awareness of body image and weight, methods of weight control, meal volume, eating rate, frequency of eating, health score and nutritional knowledge score. Obesity was determined using body mass indes(BMI=Wt/Ht$^2$). The finding revealed that the average BMI was 19.7$\pm$ 1.94 Subjects were divided into 3 groups according to body image : lean group, moderate group and obese group, respectively. The results of this study are summarized as follows : 1) 48.9% of subjects thought they were obese, however their BMI was 20.9 2) 56.1% of subjects anted to attend a weight control program and the sources of information concerning weight control were newspapers and magazines, TV and radio in that order. 3) There were no significant difference among groups in the meal volume, frequency of eating and health score. 4) There were significant differences among groups in the eating rate and nutritional knowledge score. These results suggest that an accurate self perception of their bodies, and nutritional education are important for female college students.

• 한국소음진동공학회논문집
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• 제17권4호
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• pp.289-297
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• 2007

SAFRS is the system designed to reproduce the harmonic sound into the space according to the environmental factors. Here the harmonic sound means the sound which judged by the subjective tests, and the methods were suggested in the former studies. In this research, SAFRS was applied into the Square of D University to evaluate and verify the effectiveness of the system and a few evaluations were carried out as follows; 1) sound perception, frequency, volume and harmony with the space, 2) images of the square and acoustic environment and 3) acoustic environment with existing sounds, fountain sound, produced sound by SAFRS, and both of them respectively. The results can be summarized as follows; 1) According to the evaluation on acoustic environment, no relationships were shown between the cognition of sounds produced by SAFRS and the frequency or volume, but inverse proportion was shown between the volume and special harmony. 2) As the result of image evaluation. the relationship between space and sound image was shown proportional only except the evaluation on main road at night time, it means that the sound proposal with the visual contents matching with the sounds would be more effective than the proposal of sound only. 3) Results of evaluation on acoustic environment showed that the cognition effect at night time was shown higher than that of day time when only the acoustic element was given and the effect was increased when the visual elements matches with the acoustic elements if both of them were given. It confirmed the harmony between visual and acoustic elements was very important.

• 한국가정과교육학회지
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• 제13권2호
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• pp.73-83
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• 2001

This study attempts to enhance the research quality and the desirable direction of Home Economics Education research in Korea. based upon the analyses of the articles appeared in The Journal of Korea Home Economics Education published by The Korea Home Economics Education Association since 1989. Total number of 142 articles were collected for analysis from the number 1 of volume 1 in 1989 to the number 2 of volume 10 in 1998 of the journal. The major findings by each factors considered in analysis are as follows : 1. Total numbers have been 15 volume for the last 10 years. and published bi-annually. and the size of the article ranges from minimum 7 pages to maximum 46 pages. 2. Among 9 major fields or research. 3 major fields consist of I) 32 articles in the perception of Home Economics(22.54%) : ⅱ) 31 articles in teaching-learning method and teaching materials(21.83%) : and ⅲ)22 articles in curriculum and textbooks(15.49%). 3. Among various types of research. survey research was the most frequently used. 91 articles(64.08%). followed by 16 experimental researches(11.27%) and others of descriptive research. content analysis. and case study. 4. The major data collecting method was the questionnaire survey method of 87 articles(61.27%). followed by the interview. braining storming. and experiment. The major data analysis technique was the statistical analysis of 118 articles. 5. The major target groups for data collection of researches were teacher of junior and high school. followed by the student. The size of the target ranges from 101 to 200 of 12.04% from 201 to 300 of 11.11%. 501 to 600 of 9.26%. and over 1.000 of 6.48%. 6. The numbers of researchers consist of roughly between 1 to 7. Among them. articles by one individual was 35 articles(24.65%). Most studies were not financially supported by ant institutions and universities and the researches with outside financial support were counted only 14 articles(9.86%).

• 한국멀티미디어학회논문지
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• 제22권12호
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• pp.1347-1355
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• 2019

Deep learning approach based on convolution neural network (CNN) has extensively studied in the field of computer vision. However, periocular feature extraction using CNN was not well studied because it is practically impossible to collect large volume of biometric data. This study uses the ResNet model which was trained with the ImageNet dataset. To overcome the problem of insufficient training data, we focused on the training of multi-layer perception (MLP) having simple structure rather than training the CNN having complex structure. It first extracts features using the pretrained ResNet model and reduces the feature dimension by principle component analysis (PCA), then trains a MLP classifier. Experimental results with the public periocular dataset UBIPr show that the proposed method is effective in person authentication using periocular region. Especially it has the advantage which can be directly applied for other biometric traits.

• Asia pacific journal of information systems
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• 제25권2호
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• pp.239-264
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• 2015

This study aims to investigate the effect of message content and source user identity on information diffusion in Twitter networks. For the empirical study, we collected 11,346 tweets pertaining to the three major mobile telecom carriers in Korea for three months, from September to December 2011. These tweets generated 59,111 retweets (RTs) and were retweeted at least once. Our analysis indicates that information diffusion in Twitter in terms of RT volume is affected primarily by the type of message content, such as the inclusion of corporate social responsibility activities. However, the effect of message content on information diffusion is heterogeneous to the identity of the information source. We argue that user identity affects recipients' perception of the credibility of focal information. Our study offers insights into the information diffusion mechanism in online social networks and provides managerial implications on the strategic utilization of online social networks for marketing communications with customers.

• 산업공학
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• 제13권4호
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• pp.751-758
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• 2000

Situation awareness is defined as a person's perception of the elements of the environment within a volume of time and space, the comprehension of their meaning and the projection of their status in the near future. Situation awareness is important in attempting to evaluate human behavior in operating complex systems such as aircraft, air traffic control, and nuclear power plant systems. From the literatures this study reviews the relationship between situation awareness and numerous individual, system and environmental factors, and also reviews the methodologies for the empirical measurement of situation awareness applicable to Korea Next Generation Reactor (KNGR) design project. Attention, working memory, workload, stress, system complexity, and automation are presented as critical factors limiting operator's situation awareness. Mental models and goal-directed behavior are hypothesized as important mechanisms overcoming these limits. This study summarized hypothesized guidelines for interface design to improve situation awareness of reactor operators. Some of the guidelines should be tested in the KNGR evaluation experiments in the future.

• 한국의류학회지
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• 제44권5호
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• pp.893-905
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• 2020

This study analyzed the perception types of women over the age of 60 in regards to attitude and the effect of wearing brassiere. In addition, it was also to provide the basic data demand for the development of a brassiere for elderly women. Q methodology was used for this study. Analyze the data using the QUANL pc program. Type 1 was the nipple cover non-preferred type. Type 1 thought brassiere has uplifting effect, but is uncomfortable and only worn when going out. Type 2 was a function-oriented preference type. They wore a brassiere for beauty and psychological satisfaction. The brassiere push-up the breast and enhanced volume. Type 3 was the pursuit of vibration reducing and beauty type. The brassiere reduced breast vibration and kept armpits comfortable. The brassiere was worn for beauty. In the future, the actual development of brassieres for elderly women should be investigated for wearing sensation and satisfaction.