• Journal of the Regional Association of Architectural Institute of Korea
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• v.21 no.6
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• pp.119-128
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• 2019

The aim of this study is to examine the characteristics of facade expression designed by Kim. Han-sup, a key architect in the regional modern architecture movement in Gwang-ju and Jeonnam from the 1950's to 1960's. The study begins with the architectural background and thoughts of Kim. Han-sup through literature reviews and introduces an interview with Han. chong-un, a former college student and employee of Kim, which explains the aesthetic architecture that appeared in his design of facades that was reasonably applied to materials, technology, structure and function in line with the economically tough period in Korea. Furthermore, in order to investigate the characteristics of his facade expression, detailed analysis items will be derived from precedent studies. This study will attempt to conclude with statements that his aesthetic architecture can be defined as an emphasis on formative mass by contrasting between basic rectangular forms, implementation with detailed three-dimensional facade by extruding differently vertical and horizontal structural lines and with the pursuit of decoration through compartmental faces on his 12 representative architectural works.

• Journal of Institute of Convergence Technology
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• v.12 no.1
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• pp.31-35
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• 2022

This study has been carried out in order to improve the rolling problem by enhancing steering stability compared to the 2021 Student Car of the KNUT_EV team for KSAE. Among the various factors affecting steering performances, it was focused on the height of the centroid of weight, the motion ratio, and the spring deflection. In the 2022 Car, a pull rod suspension was used to reduce the height of the centroid of weight and designed with a structure of the rod and rocker to satisfy the target motion ratio. The spring deflection was testified by ADAMS and ABAQUS analysis, and the spring stiffness was selected at 350lb/inch and 450lb/inch for the front and rear wheels, respectively. As a result, the rolling angle of the 2022 Car was reduced compared to the 2021 Car, and the rolling phenomenon was improved.

• International Journal of Advanced Culture Technology
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• v.12 no.2
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• pp.110-118
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• 2024

This study was conducted to analyze the metaverse usage behavior of college students through in-depth interviews and to explore the characteristics of the major metaverse platforms with a focus on keywords. This study derived elements such as metaverse participation activities, real-world order, metaverse system, presence, and self-expression from previous research. This study examined how college students who use the metaverse perceive these variables. We present the following research results: First, the college students who participated in the study showed interest in content with many interactive elements on the metaverse platform and appeared to participate more actively in such content. Second, college students cited the ability to engage in economic activities in the metaverse as their greatest strength. It was expected that social norms applied in the real world would also be applied in the metaverse. Third, the Metaverse system, such as the Metaverse UI, UX, and servers, was found to be a factor that needs to meet users' expectations and hinders immersion. In this study, the characteristics of the metaverse platform were analyzed, focusing on essential keywords from in-depth interviews. The analysis results are as follows: It was expressed with keywords such as Zepeto has 'avatar' and 'personality expression,' Ifland has 'free decoration' and 'communication convenience,' Gathertown has 'movement convenience' and 'video chat.' Roblox has 'game-based' and 'dynamic.'

• Journal of the Korean Society of Costume
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• v.14
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• pp.99-117
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• 1990

The purpose of this study was to investigate the change of clothes in modem Korean women in terms of a socioeconomical background, the introduction to western clothes, and the improvement of clothes between the opening period of ports in the early 1900's and 1960's. In addition, the study investigated how western clothes became popular in a Korean society along with the traditional' Korean clothes, Hanbok. The radical social change since the opening of ports motivated the change in the way of Korean women's thinking, and consequenty the improvement of Hanbok which developed into the clothes-improvement-movement. It was not until 1905 that the improvement of clothes was hotly debated particularly in the matter of abolishing Jangeui and the extreme length of Jeogori and Chima. The Tongchima-Jeogori style which lengthened Jeogori and shortened Chima was widely accepted as everyday wear until the western clothes substituted them after the Independence from Japanese Conquest. As the length of Chima shortened, there occurred a change in Boson and Jipsin as well. There appeared shoes and Gomoosin in place of Jipsin, socks in stead of Boson and were popularized until after the Liberation in 1945. The popularity of Gomoosin diminished markedly with the diversification of shoes styles, due to the improvement of the standard of living with economic development in the 1960's. The traditional Hanbok was gradually differentiated according to the social status, for instance student, teachers, ordinary women, girls and Kisaeng. Especially since the white clothes caused much trouble in washing and sewing, there came into being the movement of wearing colorful clothes. The Movement of abolishing white clothes and promoting of wearing colorful clothes was enforced during the period of Japaness conquest from the 1920's to the Liberation, which consequently stimulated an interest for colors of clothes. The period under the war between 1937 and 1945 was especially noted for the extreme regulation over the clothes. The Japanese government forced each group of women, e.g., girl students, a young women's association, school teachers, and ordinary women and girls, to wear their own uniforms. Also, It recommended the use of Tongchima in stead of long skirts, and buttons in place of Coreum so as to conserve textile encouraging the use of other substitutes to save resources. The western clothes, a model of clothe's improvement was deemed as a symbol of modernization and enjoyed general popularity. The supply of relief clothes after the Korean war accelerated the expansion of western clothes even further and the trend of westernization along with economic progress in the 1960's resulted in wearing of western clothes as everyday dress. The expansion of western clothes as casual wear rapidly diminished wearing of Hanbok which in turn took the position of ceremonial dress worn in special cases only. Hence the Korean women's clothes were dualized into traditional Hanbok and western clothes and the western clothes that stems on its convenience was settled as everyday wear where as the Hanbok appeared as ceremonial dress stressing on ornamental features. As mentioned aboved, we are able to discovered an orientation in the course of transitional process of modern Korean women's clothes admist diversified changes, which is a consistent pursuit of convenience and practicality based upon progmatism. The trend such as this carne into a finale' as women's dress became dualistic in forms of Hanbok and western clothes, and the change since then is supposed to proceed in two forms of dress featuring its own style.

• Journal of The Korean Association For Science Education
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• v.33 no.6
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• pp.1154-1169
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• 2013

The present work was performed to find behavioral characteristics of elementary school students corresponding to the motivation system on science learning (SL-BIS/BAS; Behavioral Inhibition/Activation System about Science Learning) in the observation situation. Eye-tracking was used for this study, which is one of the neurophysiological methods. The findings of present study were as follows: First, students who have sensitive motivation system to SL-BIS (SL-BIS group) showed meaningfully shorter fixation duration the whole time during an observation task than students who have sensitive motivation system to SL-BAS (SL-BAS group) (p<.05). Total fixation counts of SL-BIS group were significantly larger than SL-BAS group and it indicates that SL-BIS group often generated new fixations. Therefore, fixation duration per count of SL-BAS group was longer than that of SLBIS group. Second, we studied fixations in situations with movement corresponding to the motivation system on science learning. SL-BIS group and SL-BAS group exhibited similar fixation duration in the study task segment with movement, which is one of the stimulus attracting students. However, for the study task segment when the movement was finished, total fixation duration and fixation duration per count of SL-BAS group were meaningfully longer than those of SL-BIS group. Third, comparing fixation targets classified by factors of study task, SL-BIS group showed fixation on the target that is not important for the study task. But SL-BAS group concentrated on the target-related factor of the study task. The present work could be helpful in understanding students' characteristics corresponding to the motivation system on science learning in observation situation and for making a learning & teaching plan that is suitable to the feature of students.

• Education of Primary School Mathematics
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• v.4 no.2
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• pp.111-125
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• 2000

This paper presents cross-national perspectives on challenges in implementing current mathematics education reform ideals. This paper includes detailed qualitative descriptions of mathematics instruction from unevenly successful second-grade classrooms both in Koran and in the U. S with regared to reform recommendations. Despits dramatic differences in mathematics achivement between Korean and the U.S student. problems in both countries with regard to mathematics education are perceived to be very similar. The shared problems have a common origin in teacher-centered instruction. Educational leaders in both countries have persistently attempted to change the teacher-centered pedagogy to a student-centered approach. Many teachers report familiarity with and adherence to reform ideas, but their actual classroom teaching practices do not reflect the full implications of the reform ideals. Given the challenges in implementing reform, this study explored the breakdown that may occur between teachers adoption of reform objectives and their successful incorporation of reform ideals by comparing and contrasting two reform-oriented classrooms in both countries. This comparison and contrast provided a unique opportunity to reflect on possible subtle but crucial issues with regard to reform implementation. Thus, this study departed from past international comparisons in which the common objective has been to compare general social norma of typical mathematics classes across countries. This study was and exploratory, qualitative, comparative case study using grounded theory methodology based on constant comparative analysis for which the primary data sources were classroom video recordings and transcripts. The Korean portion of this study was conducted by the team of four researchers, including the author. The U.S portion of this study and a brief joint analysis were conducted by the author. This study compared and contrasted the classroom general social norms and sociomathematical norms of two Korean and two U.S second-grade teachers who aspired to implement reform. The two classrooms in each country were chosen because of their unequal success in activating the reform recommendation. Four mathematics lessons were videotaped from Korean classes, whereas fourteen lessons were videotaped from the U.S. classes. Intensive interviews were conducted with each teacher. The two classes within each country established similar participation patterns but very different sociomathematical norms. In both classes open-ended questioning, collaborative group work, and students own problem solving constituted the primary modes of classroom participation. However in one class mathematical significance was constituted as using standard algorithm with accuracy, whereas the other established a focus on providing reasonable and convincing arguments. Given these different mathematical foci, the students in the latter class had more opportunities to develop conceptual understanding than their counterparts. The similarities and differences to between the two teaching practices within each country clearly show that students learning opportunities do not arise social norms of a classroom community. Instead, they are closely related to its sociomathematical norms. Thus this study suggests that reform efforts highlight the importance of sociomathematical norms that established in the classroom microculture. This study also provides a more caution for the Korean reform movement than for its U.S. counterpart.

• Journal of the Korean Chemical Society
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• v.46 no.5
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• pp.456-465
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• 2002

The purpose of this study was to investigate the educational effects of an animation materials developed with the macroscopic particle moving sight. The 11 animations developed by the researchers showed the movements of molecules, ions, and electrons. The materials were developed for teachers to use when they taught "electrochemical cell' unit. The subjects were 151 students of 9th grade who were divided into the experimental and control group and were taught during 16 hours. In order to figure out the characteristics of each student before the instructions, a short-version GALT(Group Assessment of Logical Thinking) and the pretest of conceptions were carried out. After the instructions, students tested 3 types of exam; the posttest of conceptions, attitude test connected with science, cognition test. After 4 months later, students tested the posttest of conceptions agin for long-term memory effect. It was found that the exper-imental group using the developed animation materials had significantly higher scores of conceptual understanding than control group. The experimental group had also significantly higher scores of the long-term memory test and attitude test than control group. The results mean that animation materials which shows the macroscopic particle movement help stu-dents to understand scientific concepts and to elevate interests.

• Journal of Korea Entertainment Industry Association
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• v.13 no.5
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• pp.239-246
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• 2019

This study aims to examine the correlation between pectoralis minor, shoulder mobility, and neck range of motion on rounded shoulder posture for Life-care increase in Women university student. The 80 female adults with rounded shoulder posture were selected for this study. Measurements of shoulder height were obtained by measuring the rounded shoulder posture using a caliper. To measure the length of pectoralis minor, a tape measure was used to measure from the point where the 4th rib and sternum meets to the inferior medial side of coracoid process. Shoulder mobility was measured by holding fists in both hands, then raising one side of the elbow until the palm on that side can be placed on the back, while lowering the other side of the elbow until the back of the hand on that side can be placed on the back. Neck range of motion was used to measure the neck movement including the flexion and the extension, lateral flexion to the right or to the left, and rotation to the right or to the left. The results of this study showed that there are significant negative correlations between pectoralis minor index, shoulder mobility, and neck range of motion in rounded shoulder posture(p<0.05). From these results, in female students with rounded shoulder, the lateral flexion of the neck to the left decreased as the left shoulder mobility increased, the neck extension decreased as the right pectoralis minor shortened, and the rotation of the neck to the left decreased as the left shoulder mobility increased.

• Journal of Educational Research in Mathematics
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• v.26 no.4
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• pp.635-662
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• 2016

Combinatorics, the basis of probabilistic thinking, is an important area of mathematics and closely linked with other subjects such as informatics and STEAM areas. But combinatorics is one of the most difficult units in school mathematics for leaning and teaching. This study, using the designed combinatorial models and executable expression, aims to analyzes the eye movement of graduate students when they translate the written combinatorial problems to the corresponding executable expression, and examines not only the understanding process of the written combinatorial sentences but also the degree of difficulties depending on the combinatorial semantic structures. The result of the study shows that there are two types of solving process the participants take when they solve the problems : one is to choose the right executable expression by comparing the sentence and the executable expression frequently. The other approach is to find the corresponding executable expression after they derive the suitable mental model by translating the combinatorial sentence. We found the cognitive processing patterns of the participants how they pay attention to words and numbers related to the essential informations hidden in the sentence. Also we found that the student's eyes rest upon the essential combinatorial sentences and executable expressions longer and they perform the complicated cognitive handling process such as comparing the written sentence with executable expressions when they try the problems whose meaning structure is rarely used in the school mathematics. The data of eye movement provide meaningful information for analyzing the cognitive process related to the solving process of the participants.

• Journal of the Korea Fashion and Costume Design Association
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• v.7 no.2
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• pp.137-158
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• 2005

Modernization of Korea had begun with the reformation of the Kab-o Reform in 1894, which the government had designed after the protectorate treaty with Japan in 1876. It had affected drastic changes on the formation and framework of a Han-bok by government and the main changes is found in creating new style of Gae-ryang Han-bok. During 1980's, the peoples were interested in traditional cultural heritage, and 'the campaign of wearing Woo-Ri Ot' prevailed in Korea to instill the radical sprit of Korean. A Han-bok, which was made at this time, has called a Saeng-hwal Han-bok. The purposes of this study are to defue the the words that are Han-bok, Gae-ryang Han-bok and Saeng-hwal Han-bok of meaning and characteristic based on the previous studies and historical materials and present a unified and historical opinion about Han-bok to the academic world and industry of Han-bok by the consideration. Han-bok is a traditional costume with a long skirt and long breast-tie based on the later Cho-sun and is emphasized a virtue and manner on it. Gae-ryang Han-bok is an improved Han-bok that is include with a Tong-Chima and Jeogori for making a movement and function better. Saeng-hwal Han-bok is originated by the movement of wearing Woo-ri Ot in 1984, is interpreted the traditional Korean beauty from the modem view and is a practice Han-bok for popularizing intodaily life. After investigating the 33 of previous studies, the characteristics and transitions of Han-bok are followed. First, the reason of fail about the reform of dress is a loss of traditional beauty. Second, the yes or no of the establishment of law about the reform of dress, it influenced on a reforming or wearing speed of costume. Third, after 8.15, a modem girl and girl student can not impact on a system of Korean women anymore because, the number of the group that means a high educated and active woman, was growing. So, the elevation of women's education matured the system of Korean women's costume. forth, western style clothes are popularized after the Korean War and it is set down in the system of Korean women's dress.