• Journal of the Korea Furniture Society
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• v.27 no.2
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• pp.145-153
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• 2016

Today, furniture design, which is changing and diversified, a movement to search a new formative world while reviving our traditionality is continuously proceeded, that implies a new possibility in our culture. In respect of such diversified materials, Korean traditional paper, Hanji (韓紙), has already been acknowledged with its excellence. Also, Hanji is a material that fully contains aesthetic consciousness of Korean people, accordingly, this research investigated and analyzed mainly with Sarangbang furniture among Joseon antique furniture, in order to study the possibility of Hanji decorated furniture as the objet in our interior space. This research utilized Paper cut technique (剪紙技法) among Hanji Crafts technique of expressive elements of Sarangbang furniture using Hanji, which is to make patterns and attach them by cutting out or engraving colored papers using scissors or graver to the wooden frame (白骨). Through this, this research could investigate production process utilizing Paper cut technique, also, Sarangbang furniture utilizing such Paper cut could be settled down as the objet with functional aspect and aesthetic completion in our interior space. Also, the researcher presents value of our original furniture by suggesting final output and considers that systematic researches should be conducted continuously on furniture henceforth utilizing Paper cut technique.

• Journal of The Korean Digital Architecture Interior Association
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• v.7 no.1
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• pp.29-34
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• 2007

Purpose of this paper is find the similarity and dissimilarity of Korean, Chinese and Japanese traditional furnitures for storage. Also this paper tries to have a comparative analysis on life style, characteristics of housing space and furniture's form of three countries. The study can be summarized as follows. First, space scale and seat levels of three countries are related to furniture's height and form, so that Chinese furniture have over scale than human, and Japanese furniture have the type of box for stacking. Second, the way of heating and materials of floors are concerned with the type of furniture's legs. Third, even if these dissimilarities, the aesthetic characteristics of three countries furniture would be a data base for making design identity of East Asian modern housing furniture.

• Journal of IKEEE
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• v.26 no.4
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• pp.671-680
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• 2022

In this paper, A 200kW traction motor driver that covers most of the traction motor specification of commercial electric vehicles (EV) is developed. In order to achieve high efficiency and high power density, a next-generation power semiconductors (Silicon carbide, SiC) are applied instead of power semiconductor(IGBT), which is Si based. Through hardware analysis for optimal use of SiC, expected efficiency and heat dissipation characteristics are obtained. A vector control algorithm for an IPMSM (Interior permanent magnet synchronous motor), which is mostly used in EV(Electric vehicle) traction motor, is implemented using DSP (Digital signal processor). In this paper, a prototype traction motor driver based SiC for EV is designed and manufactured, and its performance is verified through experiments.

• Journal of The Korean Digital Architecture Interior Association
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• v.13 no.4
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• pp.25-32
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• 2013

The green building is one of biggest factors to go the goal of energy saving and environmental conservation, reduction of energy consumption, friendly energy technology, recycling of resource, and environmental pollution reduction technology. The purpose of these green buildings realized by the energy-saving technology such as the exterior materials or curtain wall system. The curtain wall system is a element that come to insulated portions of building envelope that results in heat loss. The purpose of this paper is to carried out mock-up tests for exterior wall used in autoclaved lightweight concrete panels in green building practices. Mock-up test execute a mixed process between standard test procedure and complex test procedure based on AAMA 501(American Society for Testing and Materials) and ASTM 283, ASTM 330(American Society for Testing and Materials). In results, tests meet the requirements that grant values in steps of procedures provided on ASTM and AAMA. ALC panel is suitable for a exterior wall product to be gratified thermal cycling performance and structural capacity, deflection(H/200) and lateral displacement(H/50), for curtain walls.

• Journal of The Korean Digital Architecture Interior Association
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• v.12 no.4
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• pp.59-66
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• 2012

This study is interested in identifying the effectiveness of alkali-activated fire protection material compounds including the alkali-activator such as potassium hydroxide, sodium silicate and fly ash as the fire resistant finishing materials. Also, this paper is concerned with change in compressive strength and pore structure of the alkali-activated fire protection material at high temperatures. The testing methods of fire protection materials in high temperature properties are make use of TG-DSC and mercury intrusion porosimetry measurements. This study results show that compressive strength is rapidly degraded depending on a rise of heating temperature. Porosity showed a tendency to increase irrespective of specimen types. This is due to both the outbreak of collapse of gel comprising the cement and a micro crack by heating. However, alkali-activated fire protection material composed of potassium hydroxide, sodium silicate and fly ash has the thermal stability of the slight decrease of compressive strength and porosity at high temperature. These thermal stability is caused by the ceramic binding capacity induced by alkali activation reaction by the reason of the thermal analysis result not showing the decomposition of calcium hydrate.

• Korean Institute of Interior Design Journal
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• v.14 no.6 s.53
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• pp.75-85
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• 2005

The 1990s' characteristics of Ecological architectural design would be choosing the traditional materials of the region's, the creative usage of construction methods, the expressive properties of materiality in spatial forms and so on. The overall organic relationships between human and men-made environments have been sublimated by the expression of poetic qualities of perception in ecological man-made environment. Hannover Expo 2000 did set up an opportunity to exposure the fact that Ecological Architecture will be the major trend in 21st Century's Architecture and its exploration in possible ways will be the most important matter. Japanese Architect Shigeru Ban's Japan Pavilion in this Exposition has shown the meaning of this turning point in Ecological Architectural thinking, which would be recognized as the convincing possibilities for the future architectural practice to the public. Thus this research has the purpose to study the meaning of the constructing action in Shigeru Ban's recent architectural space-making practice with the Paper Tube structural system. The creative foundation of Shigeru Ban's own method to apply paper tube -that is impossible material to pre-estimate- and other materials in the creation of architectural spaces would be searched in this paper. The period to this research will be between 1990s and 2000s, and the subject will be the experimental architecture of Shigeru Ban. The range of this research Is including the process of development in the paper tube architectural structure and joint system. This study would contribute to understand the intrinsic value of Shigeru Ban's Ecological architecture of the paper tube system, in which the relationship between the regional environment and human regaining the ecological abiogenesis.

• Fire Science and Engineering
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• v.25 no.3
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• pp.20-27
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• 2011

This paper studied combustion characteristics of the sponge type sound-absorbing materials extensively used on building interior. To estimate of the combustion characteristics, we carried out combustion experiment of general type and incombustibility type sound-absorbing materials. And then to evaluate the suitability of the sponge type sound-absorbing materials, we measured heat release rate (HRR) and smoke density (Ds) of the sound-absorbing materials using by a cone-calorimeter. From the combustion experimental results, general type sound-absorbing materials were rapid burned simultaneously with ignition and the incombustibility type sound-absorbing materials had all gone out simultaneously with ignition. Measured results of HRR and Ds were not satisfied KS F ISO 5660-1 and IMO FTP Code, form the results, the sponge type sound-absorbing materials were ill-suited for using building interior.

• Proceedings of the KIEE Conference
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• 1988.07a
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• pp.810-812
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• 1988

This paper is to investigate dielectric properties and new fabrication method of Glass-Cloth/Epoxy composite materials. According to the results of this paper, gelling point temperature is affected significantly on the ambient temperature. And Tan${\delta}$ characteristics of Glass-Colth/Epoxy composite materials is also affected significantly on the state of interior void of glass cloth and interface coupling between epoxy resin and glass cloth.

• Journal of Korean Medical classics
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• v.30 no.3
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• pp.181-195
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• 2017

Objectives : This paper contemplates how the special features found in Moyuan as revealed in Wenyilun has continued from the Moyuan concepts of past includig Huangdineinjing. The author of this paper attempted to distinguish common and different points between the two, and how these features changed in the following generations. Methods : The concept of Moyuan as revealed in Huangdineinjing is first reviewed before laying out the concepts of Moyuan in Wenyilun by different categories. These two concepts are then compared. A Chinese medicine literature database is used in continuing this study, and materials are selected with relation to the special features of Moyuan. Results : The special feature of half-exterior half-interior found in the Moyuan in Wenyilun is similar with that in Neijing in that they both thought Moyuan existed between the stomach, the lungs, and the five organs. The concealability of Moyuan is similar with the explanation of Moyuan in Suwen nuelun, and it is related with the story of Gaohuang in Chunqiu Zuozhuan. Compared to the fact that the concept of Moyuan in Neijing is explained as that pathogenic factor enters the surface of the body in sequence, the concept of Moyuan in Wenyilun is conveyed in that the pathogenic factor conceals itself first before being divided into exterior and interior. Moyuan is also related to upright qi, and Gaohuang-yuan: origin of Gaohuang, too, is connected Shenjiandongqi: the energy that moves between the two kidnets, and also the triple burner. Conclusions : The concepts of "Half-exterior Half-interior", concealability, and "divide it into several places in half-exterior", and upright qi contained within the Moyuan in Wenyilun are studied for their origins, and this effort is anticipated to be greatly helpful in both understanding the historical contexts of Wuyouke Wenyilun and conducting studies on clinical application of Moyuan theory.

• Composites Research
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• v.37 no.2
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• pp.115-125
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• 2024

As global issues and interest in the environment increase, the transition to eco-friendly materials is accelerating in the automobile industry. In the automotive industry, eco-friendly composite materials are mainly used in various interior and exterior components, reducing the reliance on traditional petroleum-based materials. In particular, natural fiber composites help reduce fuel consumption and greenhouse gas emissions by making vehicles lighter. Additionally, they boast superior thermal properties and durability compared to non-recyclable composite materials, making them suitable for automotive interior parts. Furthermore, reduced production costs and sustainability are key advantages of natural fiber composites. The eco-friendly composites market is expected to grow to $86.43 billion at a CAGR of 15.3% from 2022 to 2030, and the natural fiber composites market is predicted to grow at a CAGR of 5.3% from 2023 to 2028 to $424 million. In this review paper, we explore research trends in nextgeneration natural fiber composite materials for automobiles and their application in the actual automobile industry.