• 한국항공우주학회지
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• 제47권4호
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• pp.289-299
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• 2019

자세제어 M&S(Modeling & Simulation)는 모델링 정밀도에 따라 간단한 자세제어 알고리즘 설계부터 실제 탑재 소프트웨어 검증까지 활용될 수 있다. 본 논문은 CMG 기반 위성 자세제어를 위한 M&S 소프트웨어를 소개한다. 개발된 소프트웨어는 크게 6자유도 모델링과 자세제어 알고리즘으로 나뉠 수 있다. 6자유도 모델링은 CMG 구동기 모델링과 우주환경 모델링(궤도외란/자세외란)을 포함한다. 자세제어 알고리즘은 CMG 모터속도 제어기(내부루프)부터 토크명령생성 및 스티어링 법칙(외부루프)을 포함한다. M&S는 하위 레벨인 CMG 모터제어부터 상위 레벨인 지구관측임무 수행까지 단계적으로 수행되며, 적용 레벨에 따라 3개 모듈로 나뉜다. 본 M&S 소프트웨어는 초기 자세제어 알고리즘 개발을 목표로 개발되었는데, 향후 상세한 위성체/구동기 모델링 및 우주환경 모델링을 반영해 점차 활용 범위를 넓힐 수 있을 것으로 기대된다.

• 한국치위생학회지
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• 제8권2호
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• pp.77-92
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• 2008

This study was surveyed the knowledge and attitude toward the elderly in dental personnels, who play an important role in oral health of the elderly in the aging society, In order to arrange the basic data that is conducive to development in the mouth care of the elderly, the research was conducted from January 7 to February 14, 2008, targeting 270 dental personnels in Daejeon & Chungnam area, who are in charge of oral duties in the current clinic. As a result of analyzing so that questionnaire can be prepared with the self-administered questionnaire, the following results were obtained 1. The knowledge level on the elderly in dental hygienist was 13.47 marks out of 25-mark perfection. There was no difference in knowledge depending on job category and volunteer-work activity experience, And, there was no difference even depending on physical & physiological sphere, psychological sphere, and family & social sphere. 2. The attitude level toward the elderly in dental hygienist was 91.63 marks out of 150-mark perfection. Dental hygienist showed positive attitude in personality characteristic, emotional characteristic, and self-management ability by sphere, and showed statistically significant difference (p=0.011). 3. In case of having volunteer-work activity experience, the attitude level toward the elderly was 92.57 marks out of 150-mark perfection, A case of having volunteer-work activity experience showed positive tendency in emotional characteristic, self-management ability, and judgement-ability characteristic by sphere, And, the attitude toward family relation was indicated to be negative tendency, thus there was statistical significance(p=0.022). 4. As for the correlation between knowledge and attitude toward the elderly, dental hygienist was indicated to have high interest in the volunteer-work experience, the elderly education experience, and the elderly problem(r=0. 444). The knowledge and attitude toward the elderly had slightly positive correlation(r=0.155). Dental hygienists are being required gradually as the primary staff for the elderly people's dental care in the aging society. A continuous education is needed so that dental hygienists can have positive sight in understanding, knowledge, and attitude. And, the development in a mouth care program for the elderly in line with it is considered to be necessary.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2006년도 추계학술대회 논문집
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• pp.85-86
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• 2006

• International Journal of Computer Science & Network Security
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• 제23권7호
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• pp.79-90
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• 2023

Leadership development corresponds to the focus on the individual's success and competitiveness strategy. This is the optimal direction of the organization of attitude development because it covers two aspects of the student's personality development, professionally-oriented and self-centric. The aim of the study is to identify and compare the leadership level in second-and fourth-year students to see dynamics of development and implementation of the leadership phenomenon in the professional and personal making up of future specialists. Based on the theoretical analysis of the issue, the authors developed an objective and subjective diagnostic model for leadership skills. In this study, data of the objective diagnostic technique are the key. Subjective diagnostic technique for leadership skills provides insights for problem interpretation. At the level of the first group of respondents, the average Leadership Skills Level of the second-year students was quite low and was found within the medium level. The second group of respondents consisting of the fourth-year students showed a slight but effective improvement. The Leadership Skills of this group were found at a sufficient level. Positive dynamics was revealed for all criteria of leadership skills as a result of applying objective diagnostic methods: decreased percentage of students with negative and relatively low markers of Leadership Skills Level and corresponding increase in percentage of applicants with positive markers of Leadership Skills Level. Further research can be organized in the direction of identifying and developing successful universal and professionally-oriented tactics for leadership development in students as part of attitude development.

• 가정과삶의질연구
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• 제33권2호
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• pp.103-117
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• 2015

Family environment plays a significant role in adolescent development. Multicultural adolescents in Korea are brought up in a distinctive family environment, where they get to experience two different cultures within their families. Thus, it is important to examine how internal characteristics of the family environment in multicultural families and interactions between family members influence adolescents. The aim of the current study was to examine structural relationships among Southeast Asian mothers' and Korean fathers' bilingual socialization, adolescents' attitude toward mothers' native culture, and mother-adolescent relationship satisfaction. Specifically, the following two questions were addressed in this study: 1) Does bilingual socialization of each parent affect adolescents' attitude toward mothers' native culture? 2) Does children's attitude toward mothers' native culture affect mother-adolescent relationship satisfaction? To answer these questions, the survey data from the '2012 Nationwide Survey of Multicultural Families' was analysed, using SEM. The sample consisted of 318 multicultural adolescents (aged 9-17) living with Korean fathers and immigrant mothers from Southeast Asia. The main findings were as follows. First, Korean fathers' bilingual socialization had a positive effect on immigrant mothers' bilingual socialization. The path from Korean fathers' bilingual socialization to adolescents' attitude toward mothers' native culture was significantly mediated by immigrant mothers' bilingual socialization. Second, adolescents' attitude toward mothers' native culture had a positive effect on mother-adolescent relationship satisfaction. Results suggest that Korean fathers' bilingual socialization is an important factor for bilingual socialization of multicultural adolescents. It is also worth noting that each parent's bilingual socialization helps multicultural adolescents to form a positive identity as a member of multicultural families.

• 가정과삶의질연구
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• 제26권3호
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• pp.65-77
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• 2008

The purpose of the study is to investigate the effects of eating disorder belief and sociocultural attitudes towards appearance on female high school students' eating attitude. Questionnaires regarding eating disorder belief, sociocultural attitudes towards appearance, and eating attitude were administered to 900 1st and 2nd grade female high school students in Gyeonggi Province. Finally 875 questionnaires were collected and statistically analyzed through Cronbach's ${\alpha}$, factor analysis, Pearson's correlation analysis, and hierarchical multiple regression. The main results of the study were as follows: 1) Eating disorder belief, sociocultural attitudes towards appearance, and eating attitude revealed a positive correlation. 2) While control over eating, weight/shape as a means to acceptance, internalization, and awareness were significant predictors of drive for thinness, control over eating, internalization, and weight/shape as a means to acceptance were significant predictors of bulimia. 3) Internalization had a moderating effect on the relationship between eating disorder belief and eating attitude (drive for thinness, bulimia).

• 우주기술과 응용
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• 제3권4호
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• pp.322-332
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• 2023

Satellite attitude-control actuators are equipped with a reaction wheel for three-axis attitude control. The reaction wheel rotates a motor inside the actuator to generate torque in the vector direction. When using the reaction wheel, there are restrictions on the torque values generated as the motor rotates. The torque value of the reaction wheels mounted on small satellites is approximately 10 mNm, and high values are not used. Therefore, three-axis attitude control of a small satellite is possible using a reaction wheel, but this method is not suitable for missions that require rapid attitude control at a specific time. As a technology to overcome the small torque value of the reaction wheel, the control moment gyro (CMG) is currently in wide use as a rapid attitude-control actuator in space satellites. The CMG has an internal gimbal mounted at a right angle to the rotation motor and generates a large torque value. In general, when the gimbal operates, a torque value approximately 100 times greater is generated, making it suitable for rapid posture maneuvering. Currently, we are developing a technology for mounting a controlled moment gyro on a small satellite, and here we share the development status of an 800 mNm CMG.

• 한국융합학회논문지
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• 제10권10호
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• pp.267-274
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• 2019

본 연구는 부모의 양육태도와 아동발달의 관계를 알아보고자 하였다. 이를 위해 서울 및 수도권에 위치한 아동발달센터 및 아동관련 복지기관에 방문한 부모와 아동을 대상으로 검사를 실시하였다. 검사지는 총 230부를 준비하여 검사하였으나 검사과정에서 무응답 등의 누락 및 자료의 일관성 등의 문제로 신뢰성이 떨어진다고 판단되는 검사지 47부를 제외한 총 183부를 분석에 활용하였다. 자료 분석은 SPSS 18.0 버전을 이용하여 분석하였다. 검사대상자의 일반적 특성은 기술통계분석을 실시하였으며, 부모의 양육태도와 아동발달의 관계는 회귀분석을 실시하였다. 이와 같은 절차를 통해 다음과 같은 결과를 얻었다. 부모의 양육태도 중 자조행동에 있어 성취압력, 과잉기대가 영향을 주는 변수로 나타났으며, 소근육 운동에서는 감독, 과잉기대가 영향을 주는 것으로 나타났다. 표현 언어, 언어 이해에서는 성취압력, 과잉기대가 주요 변수로 영향을 주었다. 전체발달에 있어 성취압력, 감독, 과잉기대가 영향을 주는 것으로 나타났다.

• 동의생리병리학회지
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• 제24권3호
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• pp.380-384
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• 2010

The present paper attempts to investigate the factors which may affect the attitude toward Oriental Medicine among the university students in Korea and China. The research on determining factors that may influence the attitude toward the Oriental Medicine can provide the answers for the question how the traditional things can acquire their present position and make a development in modern society. The East Asian countries such as Korea and China have promoted the western-style changes and development, thinking that modernization means the westernization. Given this, the research on the attitude toward Oriental Medicine can be a good case study that shows how tradition sustains its place and develops. The present study makes two hypotheses in order to analyze the factors which make the influence on the attitude toward the Oriental Medicine: Hypothesis there will be no significant difference between the socio-demographic variables and attitude toward Oriental Medicine. Hypothesis there will be significant differences between traditionalism, modernity, nationalism, and attitude toward Oriental Medicine. The statistical results show that hypothesis 1 was confirmed in the case of the gender of the participants, whereas it was not confirmed in the case of the birthplace, economic status, and nationality. And hypothesis 2 was not confirmed in the relations between nationalism and modernity and the attitude toward Oriental Medicine, whereas it was confirmed in the relations between traditionalism and the traditional medical concept and attitude toward Oriental Medicine.

• 한국초등과학교육학회지:초등과학교육
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• 제21권2호
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• pp.159-170
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• 2002

This study examined the effect on the education of scientific attitude in the process of primary school education by application of STS teaching-learning method with an unit of 6th grade in primary school "environmental pollution and nature conservation". The attitude relating science education, on the other side, is classified into 4 parts; attitude for science, social meaning of science, attitude for science subject and scientific attitude. The study of sexual difference on the above points was examined too. The results was taken as follows. 1. STS Teaching-learning method gives positive effect on the education of scientific attitude more than traditional teaching method, especially on the point of the attitude of science lesson and scientific attitude. 2. STS education has an great influence on the social meaning of the scientific attitude relating science education , investment in science, relation with society, solving social problem, contribution to development of society and technology 3. STS teaching-teaming is thought to be the learning that is more effective for boy than girl. In conclusion The STS Teaching-loaming method is preferable in order to increase the scientific attitude of the Elementary school students. students.