• 한국항공우주학회지
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• 제36권12호
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• pp.1216-1221
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• 2008

본 논문에서 고려된 저궤도 위성은 고정형 태양 전지판을 가지기 때문에 낮구간(daylight) 동안에 태양전지판이 태양지향(sun-pointing) 자세를 유지하고, 관측 임무 수행을 위해 태양 전지판 방향과 반대방향에 위치한 탑재체가 지구지향(nadir-pointing)이 되도록 자세를 변경한다. 이 때 낮기간의 대부분을 차지하는 태양지향 자세에서는 위성 패널(panel)로 입사하는 외부 열환경 요인이 지구 복사열과 알비도(Albedo)이기 때문에, 비교적 안정적인 열환경 조건을 가지고 있다. 이에 반하여, 관측 임무를 수행하는 궤도 10% 정도의 지구지향 자세에서는 위성의 열환경 조건에 가장 지배적인 영향을 주는 태양광이 위성 패널에 영향을 준다. 비록 위성이 비교적 짧은 시간 동안에 지구 지향의 자세를 유지하지만, 이러한 열한경 조건의 변화 때문에 위성의 열설계에서 지구지향의 임무 자세에 따른 열적 영향에 대한 검토가 필요하다. 본 연구에서는 열해석 모델에 관측 임무 구간 동안의 지구지향 자세를 반영한 열해석 결과를 통하여 그 영향을 알아보았다.

• Journal of Preventive Medicine and Public Health
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• 제23권4호
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• pp.404-415
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• 1990

This study was conducted to analyze the relations among nutritional knowledge, nutrional attitude, eating practice and total nutritional diagnosis and also to find the influencing factors of them. The survey was done during the period from April 1990 to June 1990 and the target population were Ewha Womans University students (freshmen and senior) of whom 1,354 peoples were surveyed. The summarized results are as follows ; 1. For the teaming environment, the percentage of completion on nutritional knowledge course was 28.6% and among them the department of foods and nutrition had the highest score(100.0%) and the next was dept. of medicine (53.4%). 2. To find the relation which the nutritional knowledge, nutritional attitude, eating practice and the total nutritional diagnosis influence on one another, the multiple correlation analysis was done. The attitude and the practice were highly correlated with total nutritional diagnosis, but the correlation between nutritional knowledge and total nutrional diagnosis was not significant. The correlation between the practice and nutritional knowledge which were positively and significantly correlated with attitude respectively was positive but not significant. 3. The difference which were analyzed by department, grade and completion on knowledge course on the nutritional knowledge, attitude, eating practice were significant (p<0.01) by ANOVA. 4. The significant variables on nutritional diagnosis are the eating practice points, the grade, the knowledge course, the breakfast and the attitude ($r^2=10.3%$) by multiple regression analysis. This study has the limitation that it did not consider the environmental factors of dietary life such as dietary culture, family environment, cultural habit. Therefore important points of these dietary studies are to extend to the practical nutritional education and dietary improvement for the national health not restricted to the local area or local population.

• 한국항공우주학회지
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• 제44권4호
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• pp.298-307
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• 2016

인공위성의 자세추정은 결정론적 방법과 재귀적인 방법으로 나눌 수 있는데, 이 중 재귀적인 방법으로는 칼만 필터를 사용하여 자세를 추정하는 알고리즘이 널리 사용되고 있다. 초소형 큐브 위성의 경우 많은 탑재체를 실을 수 없기에 최소한의 자세 센서만을 이용해야 하는 제한점이 있다. 미션에 따라 식 기간 및 태양 센서의 데이터 이용이 불가능할 때에도 인공위성의 자세추정은 계속 되어야 인공위성은 임무를 성공적으로 완수할 수 있게 된다. 본 연구에서는 일반적인 인공위성의 자세추정 기법을 기반으로 큐브위성의 동역학과 토크외란을 고려하여 알고리즘을 발전시켜 식 기간에서도 더욱 정확한 자세 추정이 가능하도록 하였다. 제안된 알고리즘은 시뮬레이션을 통해 기존의 자세추정 방법과 비교하여 그 성능을 검증하였다. 또한 위성체가 우주 환경에서 운용되면서 받을 수 있는 다양한 크기의 토크외란에 따른 자세추정 오차를 분석하였다.

• Asian Journal of Business Environment
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• 제8권3호
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• pp.33-41
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• 2018

Purpose - This study focused on the attitude differences towards harmony-focused Ad and uniqueness-focused Ad, also those towards brand advertised in each of the two type Ads between self-construals. Research design, data, and methodology - Main survey was conducted online with the people in China, and collected 107 data through harmony Ad questionnaire and 109 data through uniqueness Ad questionnaire. Anova and t-test were used to verify hypotheses. Results - First, More positive attitude towards harmony-focused Ad and the brand in it there was at interdependent Chinese consumers than at independent Chinese consumers. Second, the independent Chinese consumers and the interdependent Chinese consumers did not form significant attitude difference towards uniqueness-focused Ad. However the independent Chinese consumers showed more positive attitude towards the brand in the uniqueness-focused Ad than the interdependent Chinese consumers. Conclusions - By highlighting the attributes of Chinese consumers' self-construal, to appeal to interdependent Chinese consumers, marketers should develop harmony-focused advertisement, and they should appeal to independent Chinese consumers by using uniqueness-focused advertisement. However the harmony might be pursued as the main content in the overall environment by Chinese people. Therefore it is necessary for the marketers to consider the harmony even when appealing them by emphasizing the uniqueness.

• 한국유기농업학회지
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• 제21권2호
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• pp.171-187
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• 2013

The environment-friendly agricultural product market receives consumers' great interests despite relatively few studies focused on consumers' decision making process of the environment-friendly agricultural products. This paper examines what factors influence on consumers' attitude and buying behavior on the environment-friendly agricultural product. In order to find the relative importance of each factor's influence, this study adopts multiple regression method based on the survey results of 500 people with the systematic random sampling. The results showed that consumers' favorable attitude towards the environment-friendly agricultural product were influenced by taste, freshness, food safety, and positive attitudes toward the environment-friendly agricultural product promotion. In addition, consumers' purchase intention was influenced by taste, food safety, environmental concern, and the promotion. Respondents recommend the environment-friendly agricultural product when they believe that the environment-friendly agricultural product had the values of taste, environmental concern, and promotion. Women are more active in buying and recommending the environment-friendly agricultural product; however, the price was not the statistically meaning factor. This study provides empirical data that was used for marketing and increasing the sales of the environment-friendly agricultural product. Future research was advised to examine more thoroughly on the relationships between the promotion efforts and purchase intention and the occasions when the price becomes the issue in the buying decision of the environment-friendly agricultural product.

• 가정과삶의질연구
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• 제30권4호
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• pp.49-57
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• 2012

This study aims examining a few elements representing a family-friendly corporate environment such as the attitude of CEOs, corporate culture, the support from direct supervisors and their influence on the sense of self-efficacy and career success of women managers. The summary and conclusion of the result of this study is as follows; first, the positive attitude of CEOs as one of the representing elements for family-friendly corporate environment was found to affect the sense of self-efficacy and the career success of married women managers with positive effects. Second, the support of superiors turned out to have a positive effect on career development of women managers. Finally, the sense of women's self-efficacy turned out to affect career success of women managers. For the use of female resources as a growth power, the attitude of CEOs who promote gender equality, and the support of supervisors will play a very important part, and in order to build a corporate culture with gender equality, promotion and policy-making on corporate as well as government level are required.

• 복식
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• 제46권
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• pp.143-158
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• 1999

The purpose of this study was to investigate the influence of home environment school life adjustment and demographic variables on the adolescents' clothing attitudes The subjects were 682 middle and high school boys and girls(boys. 342, girls:340) in Seoul Korea. Modesty of boys was influenced by parent's education(-) academic record achievement tendency of home and allowance(-) $(R^2$=8.6%) and girls influenced by affection of home(-) allowance(-) age and academic record$(R^2$=11.2%). Clothing satisfaction of boys was influenced by parents' education self-control tendency of home and school life adjustment$(R^2$=19.4%). girls influenced by allowance affection of home parents' education school life adustment and self-control of home$(R^2$=20.3%) Age was most important in predicting the wearing of regulative clothes of boys. followed by allowance and academic record(-)$(R^2$=26.7%) allowance was most important in girls followed by academic record(-), and achievement tendency of home $(R^2$=19.0%). The present findings mean that the more allowance adolescents received and the lower the academic record the lower the modesty and the their the wearing of regrlative clothes. The school life adjustment and home environment such as achievement affection and self-control tendency were meaningful variables That affect clothing attitude of adolescent.

• Asian Journal of Business Environment
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• 제13권1호
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• pp.9-19
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• 2023

Purpose: The purpose of this research paper is to explore what factors that affect customer purchase decisions in the online environment, particularly after the COVID-19 pandemic in the case of Vietnamese customers. Research Design, Data and Methodology: To clarify which factor has the most significant impacts on online purchasing decision-making process, this study proposed a research model including factors such as customer trust, proposensity to trust, system assurance, the quality of website design, attitude, and customer satisfaction. This study collected the data via online survey. Data analysis was conducted by AMOS 25.0 using the Structural Equation Modeling (SEM) method. Result: The results of this study shows that the purchase decisions were positively affected by customers' attitude, satisfaction, trust, and the quality of websites design. Additionally, factors such as perceived size and reputation and system assurance, have impacts on buyers' trust, while the propensity to trust has no significant impact. Conclusion: This study provides managerial implications. The results provide which factors should be improved to foster trust, attitude, customer satisfaction, and purchase decision in the online environment. The results also provide managerial implication on marketing strategies how to enhance better relationships with customers and to consider environmental issues in the era of post COVID-19.

• 아동학회지
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• 제29권2호
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• pp.125-137
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• 2008

This study used path analysis to investigate the effect of home environment and teacher variables on children's musical ability and attitudes. Participants were 235 children, their parents and 13 teachers of kindergartens located in G city in Gyeongbuk Province. Instruments were the Primary Measurement of Music Audiation(Gordon, 1986), the Music Teaching Efficacy Instrument(Riggs & Enochs, 1990), and questionnaires about children's musical attitudes, home environment and music activities. Results showed that teacher variables affected children's musical ability directly and indirectly and children's attitude affected their musical ability directly. Psychological and physical variables of the home environment affected children's musical ability and attitudes positively.

• 가정과삶의질연구
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• 제7권2호
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• pp.31-43
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• 1989

The purposes of this study were to identify the overall levels of consumer problem, consumer competencies and purchase pattern of urban low-income consumers and to examine the factors affecting the consumer problem and the subareas-market environment problem(MEP) and transaction relation problem(TRP). The related factors, that is, independent variables were competencies-related factors(consumption-oriented attitude, attitude on consumerism, consumer knowledge), purchase pattern-related factors (search pattern, credit pattern, peddler pattern) and socio-demorgraphic factors(age, educational level, family size). For this purpose, a survey was conducted by interview using questionaires on 198 homemakers that lived in the poor areas of Seoul. Statistics used for data analysis were Frequency Distribution, Percentile, Mean, Pearson's Correlation, One-way ANOVA, Scheffe-test, Breakdown and Multiple Classification Analysis. Major findings were as follows: 1) In the level of consum r problem were in the middle level and the level of MEP were higher than that of TRP. The attitude on consumption-orientation was so negative, while attitude on consumerism was positive. The level of consumer knowledge was in the middle level. The urban low-income consumers searched a little and depended on credit and peddler in the low level. 2) Consumer problem perceived by urban low-income consumers differed significantly according to attitude on consumerism, credit pattern, monthly charge of peddler purchase. The MEP depended on attitude on consumerism and monthly charge of peddler purchase, and the TRP was affected by credit pattern and attitude on consumerism. Resulting from MCA, the most influencial variable was attitude on consumerism and credit pattern in the consumer problem, and attitude on consumerism in the MEP, and credit pattenr in the TRP.