• International Journal of Aeronautical and Space Sciences
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• v.14 no.1
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• pp.91-98
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• 2013

The rigorous requirements of modern spacecraft missions necessitate a precise attitude determination strategy. This paper mainly researches that, based on three space-borne attitude sensors: 3-axis rate gyros, 3-antenna GPS receiver and star-sensor. To obtain global attitude estimation after an information fusion process, a feedback-involved Federated Kalman Filter (FKF), consisting of two subsystem Kalman filters (Gyros/GPS and Gyros/Star-sensor), is established. In these filters, the state equation is implemented according to the spacecraft's kinematic attitude model, while the residual error models of GPS and star-sensor observed attitude are utilized, to establish two observation equations, respectively. Taking the sensors' different update rates into account, these two subsystem filters are conducted under a variable step size state prediction method. To improve the fault tolerant capacity of the attitude determination system, this paper designs malfunction warning factors, based on the principle of ${\chi}^2$ residual verification. Mathematical simulation indicates that the information fusion strategy overwhelms the disadvantages of each sensor, acquiring global attitude estimation with precision at a 2-arcsecs level. Although a subsystem encounters malfunction, FKF still reaches precise and stable accuracy. In this process, malfunction warning factors advice malfunctions correctly and effectively.

• Journal of Korean Elementary Science Education
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• v.31 no.4
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• pp.436-449
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• 2012

This study aimed to investigate primary students' science-related attitudes through the literature review. Ninety-four papers published in domestic science education journals, since 1990, were collected and were followed by content analysis. In this study, science-related attitude was conceptualized as attitude toward science, scientist, science-related occupations, and school science, which is composed of cognitive, affective and behavioral domains. Based on the conceptualization, the instruments used for measuring students' attitudes were analyzed. The analysis of definition of science-related attitude in the articles showed different foci on cognitive, affective and behavioral domains. To suggest the effective instruction for enhancing students' science-related attitudes, this study identified students' attitude with gender, grade, residence and achievement level. The result showed that male, urban, higher-grade and better performed students had more positive attitude than female, rural, lower-grade and less performed students. As for the factors in science-related attitude, I categorized the factors into personal, environmental and pedagogical aspects, and found that psychological elements in all domains were most influential to students' change of science-related attitudes. It is interesting to note that students showed dichotomous views about experiment and that task-oriented instruction failed to enhance students' attitude. Based on the research findings, this study suggests effective instruction for improving students' attitudes and future research for science education.

• Fashion & Textile Research Journal
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• v.8 no.1
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• pp.71-79
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• 2006

The study of young people's attitudes towards appearance management has special significance for understanding young people's living, thought and attitudes. It was handed out 600 questionnaires in the three cities and look 573 questionnaires back, out of which 552 were used as the basic material for the analysis. These 522 questionnaires included 178 in Beijing, 200 in Shanghai, 175 in Dalian. 154 questions in four aspects were raised in the questionnaires. The purpose of this study were to identify the Chinese generation' lifestyle and fashion attitudes. Questionnaires developed by researcher were distributed and collected from 552 chinese new generation of the three cities(178 in Beijing, 200 in Shanghai, 175 in Dalian). 1) Life attitudes of new generation men and women in China were classified into five factors, which were extravagant pleasure-seeking, sports-oriented, marriage-oriented, appearance-oriented and study-oriented attitudes. 2) Fashion attitudes of new generation men and women in China were classified into eight factors, which were fashion attitude of being conscious of others, others-dependent fashion attitude, rational fashion attitude, brand-pursuing fashion attitude, active appearance management fashion attitude, unique fashion attitude, fashion attitude of being conscious of sex role and individuality-oriented fashion attitude.

• Women's Health Nursing
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• v.18 no.4
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• pp.302-311
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• 2012

Purpose: The purpose of this study was to examine factors related to attitudes to menstruation in elementary school girls according to menarche experience. Methods: Data were collected using a structured questionnaire from 208 girls in 5th or 6th grade (90 who were menarche and 118 who were not). The study was a cross-sectional study. Data were analyzed using SPSS/WIN 18.0 program for descriptive statistics, t-test, ANOVA, Pearson correlation, and multiple regression. Results: There were significant differences in body image, menstrual knowledge and attitude between the two groups of students. Results from the multiple regression analysis revealed difference in related factors and in the magnitude of the relationship evaluated by standardized beta coefficients. Significant factors, listed by the magnitude of beta coefficients, among students in menarche were positive affect of menarche, self-oriented perfectionism-critical, negative affect of menarche. Significant factors among non-menarche students were menstrual knowledge and self-oriented perfectionism-critical. Conclusion: There are differences between menarche and non-menarche girls in attitude to menstruation and related factors. Based on the results of the present study, systemic health education according to differences between the two groups should be developed to foster positive attitudes to menstruation.

• Journal of Korean Gerontological Nursing
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• v.20 no.3
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• pp.185-192
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• 2018

Purpose: Korea is one of the most rapidly aging countries, accompanied by an increasing number of older adults with dementia. Certified-care-assistants are the primary care workers for these older adults. This cross-sectional descriptive study compared the factors influencing care behaviors among Korean and non-Korean certified-care-assistants in Korea. Methods: Participants, 113 Korean certified-care-assistants and 71 non-Korean certified-care-assistants, completed a survey questionnaire. The questionnaire was designed to assess dementia knowledge, attitude and care behaviors toward older adults with dementia. To determine the differences in these two groups, t-test was used. A stepwise multiple regression was performed to identify factors related to care behavior. Results: Significant differences in dementia knowledge, attitude and care behavior toward older adults with dementia emerged between Korean and non-Korean certified-care-assistants. Factors influencing care behavior varied by group. Dementia knowledge and education level were the significant factors of care behaviors in Korean certified-care-assistants, whereas attitude toward older adults with dementia was the significant factor in non-Korean certified-care-assistants. Conclusion: Findings indicate that different factors influence the care behavior of two groups. These findings can be utilized to develop certified-care-assistants' training curriculum that needs to be tailored by nationality to improve the quality of care for older adults with dementia.

• Child Health Nursing Research
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• v.14 no.2
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• pp.195-202
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• 2008

Purpose: The purpose of this study was to investigate parenting attitudes and to identify factors influencing this parenting attitude in mothers of children with hemophilia. Method: The participants in this study were 119 mothers of children with hemophilia (under 18 years of age) who were registered members of the Korea Hemophilia Foundation. Data were collected using the Mother-Infant Attachment Scale, Maternal Guilt Scale and Parenting Attitude Scale. The collected data were analyzed using SPSS program. Results: The parenting attitude was 3.02 (total possible score=4). By subcategories, achievement attitude was the highest (3.45). Of the factors influencing parenting attitudes, mother-child attachment, maternal guilt and self-esteem account for 45.6% of the variance. Conclusion: The findings of this study show that attitudes of parents of children with hemophilia were positive. As mother-child attachment and maternal guilt were identified as major factors in predicting parenting attitudes, there is a need to consider interventions that will increase mother-child attachment and decrease maternal guilt.

• Journal of Families and Better Life
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• v.31 no.5
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• pp.173-184
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• 2013

The purpose of this study was to investigate adolescent consumers' consumption trends to identify their tendency for conspicuous consumption. To investigate adolescent consumers' consumption factors and conspicuous propensity for consumption, mass media, peers' effects & conformity were examined. The objects of the study are 503 middle and high school students in Seoul. The data were analyzed through frequency analysis, mean, standard deviation, t-test, Pearson's correlation, and hierarchical multiple regression analysis by using SPSS Win 12.0. The major results of this study are as follows: Firstly, the factors of gender, grade and allowance suggest a consumption-oriented attitude and conspicuous consumption is revealed to be the highest among female students rather than male students, and high school students rather than middle school ones. Allowance is significantly correlated with consumption-oriented attitude and conspicuous consumption. Secondly, factors that affect the propensity for the consumption-oriented attitude of adolescent consumers are mass media, peer conformity, and effects. Thirdly, the factors affecting the propensity for the conspicuous consumption of adolescent consumers are peers' effects, mass media, and peer conformity. This investigation could contribute to enhancing the understanding of adolescent consumers.

• Journal of Family Resource Management and Policy Review
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• v.13 no.3
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• pp.123-136
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• 2009

The purpose of this study was to investigate the factors influencing the marital satisfaction of husbands in multicultural families. This study will provide basic data to develop the policies and services related to multicultural families. Data were collected through the questionnaire method from 99 multicultural couples. Analysis of the data consisted of t-tests to compare the psychological characters of the couple and multiple regression to analyze the independent effects of the related variables. The results can be summarized as follows: First, self-esteem, depression, and multicultural acceptance attitude are significantly higher for the wife than for the husband. Second, regarding the influence of the relevant factors on the husband's marital satisfaction, the most significant factors include the gap in the couple's ages, the husband's self-esteem and sex role attitude, and the wife's sex role attitude, godiness, and marital satisfaction.

• Journal of Information Technology Applications and Management
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• v.25 no.4
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• pp.1-21
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• 2018

Due to the increase in the use of the Internet, it is becoming more common to provide or use a social login for registering for services. Herein, the purpose of this study is to analyze the influence of security, individual innovativeness, ubiquity and brand awareness on the use of social log-in service through the individuals' attitude who have memorized various IDs and passwords by using Technology Acceptance Model (TAM). In addition, the effect of individual innovativeness on the relationship between social login characteristic factors and attitudes toward social login services are examined. Based on the statistical results, it is found that the significant factors affecting the attitude toward the social login service are the security, ubiquity, brand awareness and perceived usefulness. Moreover, the individual innovativeness is found to have the moderating effects in the relationship between the three factors (the perceived usefulness, and perceived ease of use, and security) and attitude toward the social login service. Positive attitudes increase with the usefulness, ease of using social login serive when individual innovativeness is high. On the other hand, when individual innovativeness is low, the stronger the effect of security on attitude toward the social login services. In accordance with these results, the implications and limitations of this study are discussed.

• Korean Journal of Community Nutrition
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• v.29 no.3
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• pp.199-211
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• 2024

Objectives: Online grocery shopping has gained traction with the digital transformation of retail. This study constructs a behavioral model combining values, attitudes, and reasons for behavior-specifically, facilitators and resistance-to provide a more novel discussion and further understand the relative influences of the various factors affecting continuance intention in online grocery shopping. Methods: Data were collected through an online questionnaire from consumers who had engaged in online grocery shopping during the past month in Seoul, Korea. All collected data were analyzed using descriptive analysis, and model validation was performed using partial least squares structural equation modeling. Results: Continuance intention is primarily driven by facilitative factors (compatibility, relative advantage, and ubiquity). Attitude can also positively influence continuance intention. Although resistance factors (price, tradition, and risk) do not significantly affect continuance intention, they negatively affect attitude. Values significantly influence consumers' reasoning processes but not their attitude. Conclusions: These findings explain the key influences on consumers' online grocery shopping behavior in Seoul and provide additional discussion and literature on consumer behavior and market management. To expand the online grocery market, consumers should be made aware of the potential benefits of the online channel; the barriers they encounter should be reduced. This will help sustain online grocery shopping behavior. Furthermore, its positive impact on attitude will further strengthen consumers' continuance intention.