• Journal of the Korean Wood Science and Technology
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• v.29 no.3
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• pp.36-46
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• 2001

This study was to find a way of reusing wood and plastic wastes, which considered as a troublesome problem to be solved in this age of mass production and consumption, in manufacturing wood fiber-polypropylene fiber composite panel. And the feasibility of this composite panel as a substitute for existing headliner base panel of automobile was also discussed, especially based on physical and mechanical performance. Nonwoven web composite panels were made from wood fiber and polypropylene fiber formulations of 50 : 50, 60 : 40, and 70 : 30, based on oven-dry weight, with densities of 0.4, 0.5, 0.6, and 0.7 g/$cm^3$. At the same density levels, control fiberboards were also manufactured for performance comparison with the composite panels. Their physical and mechanical properties were tested according to ASTM D 1037-93. To elucidate thickness swelling mechanism of composite panel through the observation of morphological change of internal structures, the specimens before and after thickness swelling test by 24-hour immersion in water were used in scanning electron microscopy. Test results in this study showed that nonwoven web composite panel from wood fibers and polypropylene fibers had superior physical and mechanical properties to control fiberboard. In the physical properties of composite panel, dimensional stability improved as the content of polypropylene fiber increased, and the formulation of wood fiber and polypropylene fiber was considered to be a significant factor in the physical properties. Water absorption decreased but thickness swelling slightly increased with the increase of panel density. In the mechanical properties of composite panel, the bending modulus of rupture (MOR) and modulus of elasticity (MOE) appeared to improve with the increase of panel density under all the tested conditions of dry, heated, and wet. The formulation of wood fiber and polypropylene fiber was considered not to be a significant factor in the mechanical properties. All the bending MOR values under the dry, heated, and wet conditions met the requirements in the existing headliner base panel of resin felt.

• Journal of the Korean Wood Science and Technology
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• v.27 no.3
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• pp.7-16
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• 1999

This research was carried out to compare structure, equilibrium moisture content(EMC), adsorption and acoustical properties between 4 retention levels of saligenin(o-hydroxybenzyl alcohol) treated, heat-treated and untreated chestnut(Castanea crenata S. et Z.) and paulownia(Paulownia spp.) woods. The cell structures of untreated wood and heat-treated wood were not different but the cell wall of saligenin treated wood was thicker than that of untreated wood for both species. EMC of untreated wood was the highest, next was that of heat-treated wood, and that of saligenin treated wood was the lowest, and among saligenin treated woods, EMC was decreased as retention level increased for both species. Adsorption curves were parabolically increased. Acoustical properties of saligenin treated wood were most improved, and the next were those of heat-treated wood. Comprehensive acoustical property was improved at retention level 20% and 30% for chestnut wood, and at retention level 80% for paulownia wood.

• Journal of Digital Convergence
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• v.18 no.8
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• pp.391-399
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• 2020

Even though the animation industry has been growth since 2011, there is still imitation by public stereotype which insists that animation is only able to cover the young age group and is not the proper genre of art to convey a social or a philosophical agenda. However, describes the philosophical agenda of 'social class' and 'life and death' in the limited space by expressing characteristics and background of fish through its own way. Thus, it shows how animation goes beyond aforementioned limits. Straying from traditional happy-ending, it criticizes present social problems by telling despite fishes' effort they cannot escape from structural contradictions. The drawing technique in musical expresses the character's ideology and attitude to make people think about how we will behave in the face of life and death. Therefore the purpose of this paper is analyzing director Lee Dae-hee's animation and present the genre expandability of animation.

• Journal of Korean Elementary Science Education
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• v.39 no.3
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• pp.369-381
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• 2020

This study aims to analyse the relationship between multiple intelligence and scientific creativity of science-gifted elementary students focusing on the subject of biology. For this, 37 science-gifted fifth-graders in the Science-Gifted Education Center at an Office of Education conducted a multiple intelligence test. In addition, researchers collected science-gifted students' results of scientific creativity activity at the botanical garden field trip. The main findings from this study are as follows: First, strong intelligence was logical-mathematical intelligence for gifted students, and weak intelligence was found to be naturalistic intelligence for them. Second, there was no significant correlation in the relationship between multiple intelligence and scientific creativity of science-gifted students. Third, as a result of independent two sample t-test for each intelligence and scientific creativity scores divided into the upper and lower groups, only verbal-linguistic intelligence statistically differed significantly at the level of p<.05 (t=2.13, df=35, p=0.04). Fourth, as a result of conducting a two-way analysis to see if there were any interaction effects, verbal-linguistic and visual-spatial, logical-mathematical and visual-spatial, logical-mathematical and bodily-kinesthetic, and visual-spatial and musical-rhythmic intelligence all showed significant values at the level of p<.05 level in interaction effects on originality element comprising scientific creativity. Fifth, an analysis of students with high naturalistic intelligence showed that their scores of scientific creativity tasks conducted at the botanical garden field trip were all lower. Based on the results of this study, this study discussed the implications of scientific creativity learning linking multiple intelligence in primary science education and gifted education.

• Journal of the Korea Convergence Society
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• v.8 no.9
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• pp.265-270
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• 2017

This study purposed to investigate harmonic compositions and progressions that are appropriate for emotion vocabulary. In study 1, eight(8) professional music therapists were asked to provide harmonic compositions and progressions reflecting the tonal characteristics of emotion vocabulary and the rationales. Various attributes of harmonic compositions and progressions were examined and the content analysis were administered. In study 2, the obtained data on study 1 were evaluated by 124 music therapy and music majors for the validity. In the first study, analyzed results showed that 'happy' vocabulary utilized major, tonic, consecutive chord changes, 'angry' vocabulary utilized minor, augmented, $9^{th}$, $11^{th}$, unsolved $7^{th}$ chord progression, 'sad' vocabulary utilized minor, diminish, chromatic chord progressions. In the second study, there was statistically significant difference with 'happy' vocabulary. These results can provide basic evidences for musical ideas of harmonic compositions and progressions to better communicate emotional aspects of lyrical messages when composing melody in a song.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.10 no.8
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• pp.2110-2116
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• 2009

The culture industry very have interested in modern society so that it is a field to be provided opportunity to can benefits of life with health, medical industry. Especially, music industry to have based on popular support has acknowledged as artistic value to can easily approach that expresses a feeling to exist together with popularity, originality. In this paper, we will want to design indicators to evaluate a singer's musical talent to can speak a key part in these music industry. From this, we applied analysis elements of spectrogram to perform in change of vocal tract shape in singer's voice and public voice about identical music, and performed comparison, analysis of two groups to experiment pattern analysis of result waveform. Therefore, we analyzed pattern in change of vocal tract shape choice a popular music using of experiment to collect singer and public voice about identical part with time so that we designed indicator to can evaluate musicality.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.5
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• pp.2635-2640
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• 2014

Lee Ritenour and Larry Carlton were the most popular contemporary guitarists. So we can find they have something in common in many ways. Also their abundant experiences and know-how made their own music into Fusion Jazz. They always tried to make new approach specializing Fusion Jazz genre, which makes us realize that they are the front runners of Contemporary Jazz mixing music with the situation of the time. This paper analyzes harmonic parts and arranged parts these two guitarists show and studies the musical meaning and characteristics their representative albums have. Also this paper focuses on some developments and growth by examining the relationship between these two guitarists.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.12
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• pp.212-217
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• 2018

Shin Hae-Chul's music opened a new horizon in the Korean pop music market where only popular music is produced and the music of a similar genre or pattern is mainstream, which has dissolved the complaints of the public who longed for new music. He experimented with his musical potential every time he released his work, which received favorable reviews in that he raised the level of Korean pop music. To solve the unstable factors in today's pop music, it is important to appeal to the public by capturing quality work through continued studies and creative activities. In that context, the attitude of "Next" is led by the late Shin Hae-Chul, and his qualities as an artist greatly contributed to the development of Korean pop music. This indicates that if musicians strive to develop themselves, and strengthen their creative ability to make bold and new attempts, Korean pop music will lead to another fashionable "K-pop" and will open up a new horizon.

• Korean Journal of Child Education & Care
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• v.17 no.4
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• pp.209-232
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• 2017

The purpose of this study was to explore the relationship among self-regulation and multiple intelligences of preschool children. The participants were 275 children between the ages 3, 4 and 5 and their mothers and teachers from kindergarten in Ulsan. The collected data were analyzed by using the SPSS v.21 computer program. The major results of this study were as follows; First, children's self-regulation ability was statistical significant disparity between sex and age. Second, children's Spatial Intelligence and Linguistic Intelligence were statistical significant disparity between sex and age. Logical-mathematical Intelligence, Interpersonal Intelligence were statistical significant disparity only age. Musical Intelligence, Intrapersonal Intelligence were statistical significant disparity only sex. but Bodily-kinesthetic Intelligence was not statistical insignificant disparity between sex and age. Third, Intrapersonal Intelligence, Linguistic Intelligence, Spatial Intelligence, Logical-mathematical Intelligence and Interpersonal Intelligence were significant predictors on children's self-regulation ability. These results could be used as stepping stone in developing preschool children's self-regulation program in near future.

• Education of Primary School Mathematics
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• v.17 no.3
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• pp.277-297
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• 2014

In this study, we analyzed what STEAM-related subject contents, except mathematical knowledge, are contained in 2009 revised elementary first grade mathematics textbooks. STEAM-related subject contents in the textbooks were examined by unit and by strand of the content in the elementary school mathematics curriculum. According to the results, the number and the type of STEAM-related subject contents are different depending on the unit and the strand of the mathematics content. Generally speaking, in each unit and in each strand of mathematics, storytelling liberal arts-related contents are seen the most, followed by non-storytelling liberal arts-related contents and physical education contents in order, while the number of musical contents was very small. So we need to develop different STEAM materials in order to activate STEAM education in our elementary math classrooms.