• Journal of Drive and Control
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• v.12 no.1
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• pp.21-27
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• 2015

Pneumatic cylinders are classified into rod-type pneumatic cylinders and rodless pneumatic cylinders depending on the presence of the rod. Rodless cylinders have a constant area and have no deflection. Rodless cylinders are widely used in automatic systems requiring high-speed performance and high-precision transportation. However, the research of the pneumatic cylinder has been focused on the structure and life characteristics. In this research, aging characteristics and shape parameter analysis which are related to the lifetime were investigated. By conducting the lifetime tests with two different materials for the transfer plate, the failure mode and lifetime characteristics were analyzed. By the Anderson-Darling (A-D) verification based on the complete data set, the analysis results of lifetime distribution, shape parameter, and scale parameter were provided.

• Transactions of the Korean Society of Mechanical Engineers
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• v.16 no.9
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• pp.1736-1743
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• 1992

The combustion in the cylinder of spark ignition engine is completed after the delayed time that the liquid film fuel is vapourized as flowing into the combustion chamber. It is necessary to enhance the homogeneity of mixture and the combustion phenomenon in order to improve the heat efficiency and the emission characteristics of spark ignition engine. The main purpose of this paper is to manufacture a combustion analyzing system and examine closely the influence of non-uniformity due to the liquid film fuel flowing in the intake manifold on the combustion characteristics by using a 4 stroke multi- cylinder spark ignition engine. Moreover, with each cylinder, the interpretation of combustion characteristics by indicator diagram and the concentration of exhaust gas were investigated.

• Journal of Fisheries and Marine Sciences Education
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• v.19 no.3
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• pp.415-428
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• 2007

본 연구는 인지양식이 온라인 학습의 성취도에 영향을 미치는 요인중의 하나라는 선행연구 결과들을 토대로, 인지양식이 온라인 정보탐색능력에도 영향을 미치는지 그리고 어떤 다른 개인적인 특성들이 온라인 정보탐색행위와 연관성이 있는지 고찰 하였다. 연구 대상은 대학원 석사과정과 박사과정에 재학중인 학생 36명이었으며, 인지양식검사와 Ellis와 Haugan (1997)의 정보탐색행위 모델에 근거하여 연구자에 의해 제작된 설문조사를 실시하였다. 학생들에게 연구 주제를 주고 온라인상에서 정보를 탐색하도록 시켰으며, 이들의 정보탐색행위 과정과 특성을 관찰하고 기록하였다. 인지양식검사 결과와 설문조사 결과를 양적 분석하고, 정보탐색행위 과정과 특성에 관한 질적 분석한 결과에 의하면, 개인의 인지양식과 온라인시스템을 이용한 정보탐색능력과는 아무런 상관관계가 없었다. 반면에, 정보탐색행위는 컴퓨터 이용 능력, 온라인 도서관 시스템 사용경험/능력과 상관관계를 보였다. 또한 검색한 정보에 대한 만족도는 정보탐색에 보내는 시간과 반비례 상관관계를 가지며, 대부분의 학습자들이 총 8단계의 정보탐색과정 중 " Browsing" 단계에 대부분의 시간을 보내는 것으로 관찰 되었다. 끝으로 대부분의 학생들이 도서관 시스템 사용능력에 높은 효능감을 보였지만, 학교 온라인도서관 시스템이 사용하기 편리하지 않도록 설계되어있다고 대답했으며, 자신들의 연구를 위해서 인터넷 검색엔진보다는 도서관 데이터베이스를 더 자주 사용하고 있는 것으로 나타났다.

• Journal of Gifted/Talented Education
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• v.14 no.2
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• pp.75-99
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• 2004

The purpose of the study was to find out differences in personality characteristics between gifted and normal children and also to find out differences in personality characteristics between gifted boys and gifted girls. Three hundred and forty-five children(108 gifted children, 237 normal children), who were forth to sixth grade children, were taken the Children's NEO Personality Inventory(Big five traits and 17 facets). The results were as follos; 1. There are statistically significant differences in personality characteristics between the gifted and the normal children. The gifted children have higher tendency of openness, extraversion, conscientiousness, lower neuroticism than the normal children. There is no difference in agreeableness between the gifted and the normal children. In the subfactors(facets) of neuroticism, the gifted children have lower tendency of anxiety, hostility, depression, shyness, attention deficit than the normal children. In the subfactors of extraversion, the gifted children have higher tendency of assertiveness, gregariousness, cheerfulness than the normal children. In the subfactors of openness, the gifted children have higher tendency of fantasy, creativity, physical activity, high intellectual ability, flexibility, reactivity than the normal children. In the subfactors of agreeableness, the gifted were more warmth and altruism than the normal children. In the subfactors of conscientiousness, the gifted children have higher tendency of competence, achievement motivation, deliberation, dutifulness than the normal children. 2. There were no statistically significant differences in personality characteristics between the gifted girls and the gifted boys. In the subfactors of neuroticism the gifted boys have higher tendency of shyness than the gifted girls. In the of subfactors of extraversion, the gifted boys have lower tendency of sensation- seeking than the gifted girls. In the subfactors of openness, the gifted boys have higher tendency of intellectual ability than the gifted girls.

• The Journal of the Korea Contents Association
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• v.20 no.5
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• pp.351-358
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• 2020

The aim of this study was to confirm for relationship between national exam stress and oral health status on allied health students. For this, 829 of allied health students were surveyed in four college and university located in Chungbuk and Kyungbuk. Survey tool were constituted general characteristic(4 items), national exam stress(16 items) and oral health status(34 items). The result of study, national exam stress of female were higher than male and that of department of dental hygiene, nursing, emergency medical service students were higher than other students(p<0.05). Subjective oral symptom were higher on high stress group than other groups(p<0.05). Relationship between stress and subjective oral symptom were related each other(p<0.01). Therefore it is necessary to education for manage oral symptom affected national exam stress.

• Journal of Digital Convergence
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• v.15 no.8
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• pp.417-422
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• 2017

This study conducted frequency analysis for male and female patients aged 60 and over from the results of analyzing improvement strategies for inconvenience due to wearing alopecia wigs. When the patoent started perceive their depilatory diseases was right after treatment of anticancer drugs or radiotherapy, and they were found to suffer from inconveniences of being dried, etc. After treatment of chemotherapy, as for the falling-out parts, eyebrows were found to be the highest 52.1%, and pubic hair 38%, axilla hair 29% in that order. And the inconvenience level of wearing wigs among the patients with the different background of education indicates that the professions of the patients affect the ease of use. It is presumed that the easiness in use which the college graduates, high school graduates, and postgraduates showed is attributable to the age difference. to improve the inconveniences from cancer patients wearing wigs, scape troubles and close adhesion are constantly needed.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.9 no.6
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• pp.1830-1837
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• 2008

The growth of an information and knowledge based society has changed the base of education from institution-based to a learner-based system. This indicates that the educational purpose and individual characters of the learners are the primary factors for the educational success. In the information and knowledge based society, the Cyber University is a representative example of the new educational paradigm with its online communities, multi-media based education and communication among the learners. The sample of study was 1620 students of a leading cyber university in Seoul, Korea. One of the results in this study showed that satisfaction levels of learning and education do not have significant relationship with age or employment. Rather the lowering level of satisfaction after sufficient adaptation period of cyber education was raised as rising problem.

• Journal of dental hygiene science
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• v.15 no.6
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• pp.746-752
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• 2015

Four hundreds and eighty-seven dental hygiene students were selected and a questionnaire survey was carried out to find out how emotional intelligence and ego resiliency affect interpersonal skills so that this can be the basis to enhance their interpersonal skills. PASW statistics 18.0 was used for analysis, results are as follows: It was statistically significant that students with higher emotional intelligence and ego resiliency and good interpersonal skills answered that they had high economic standard of living (p<0.001, p<0.05). Students raised by parents showed high emotional intelligence and ego resiliency (p<0.05), same result was shown among religious students too (p<0.05). Students with high ego resiliency showed better interpersonal skills (p<0.001), and ego resiliency influenced more on interpersonal skills than emotional intelligence. Therefore, curriculum to develop emotional intelligence and ego resiliency of dental hygiene students to improve their interpersonal skills which is one of the core competences of dental hygienist needs to be planned in the course.

• Journal of Korea Entertainment Industry Association
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• v.14 no.4
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• pp.57-65
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• 2020

The purpose of this study is to analyze the problem solving ability of occupational therapy students by applying PBL classes using social networks. Data were collected from 35 students in the third year of occupational therapy at K University from March to June 2019. The results were as follows: First, PBL application using social networks showed a significant improvement in problem solving ability. Seconds, there was a significant difference in problem solving ability according to the preference of mobile device use and major satisfaction. Therefore, as a learning tool for improving the problem-solving ability of occupational therapy students, we proposed a way to increase satisfaction with learning by activating PBL using social networks.

• Journal of the Korea Convergence Society
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• v.13 no.1
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• pp.357-364
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• 2022

This study aims to design a humanities model for preliminary universities using an online platform to develop and expand humanities thinking of preliminary university students. P University Expert Focus Group Interview and student surveys are conducted, and based on the analysis results, a preliminary university model suitable for the humanities field is proposed. Expert FGI suggested the necessity of human resources education to build an online platform-based preliminary university model and improve humanities capabilities. As a result of the student survey, it was found that a majority of the respondents had high interest in humanities and recognized the need for a humanities preliminary university. This study proposes a humanities-based preliminary university model that enables interactive communication in virtual space using the cross-platform Photo Server. The implication of this study is that it contributes to strengthening the humanities capabilities of preliminary university students by presenting an online platform preliminary university model that can respond to changes in the external environment. Since this study has a limitation in that it does not present examples of preliminary universities, it is necessary to verify the educational effect of platform-based ppreliminary university management in the future.