• 한국생활과학회지
• /
• 제16권5호
• /
• pp.1061-1068
• /
• 2007

The study has sought to explore how fashion emerges as a comprehensive tool of dress for increasing its brand appeal and express one's artistic sense and fashion by using everything from make-up to hair to trappings. Therefore, when it comes to fashion trends reflected in collections, the study is designed to improve understanding of make-up as one of the elements of total fashion and to help create diverse ideas in expressing creative and free make-up that can help perfect fashion concept in harmony with all the other elements. The study has pondered upon collection, trends and fashion make-up through literature study, and has gathered image data via the Internet. It also has conducted analysis of Ethnic style reconstructed combining past and the future, East and the West, and futurism style using asymmetrical forms without no defined patterns and hi-tech textures, which emerges as a result of post-modernism. The results of the study are as follows. Ethnic fashion that pursues strange and exotic beauty is characterized by its simple and idyllic images of traditional costume in Asia or primitive clothes in Africa. Make-up represent images of matt and pale skin, tanned yellow, glossy and thickly powered squeaky white skin. Point make-up highlighted eye lines, red chick, small and voluptuous red lips. Hair and accessory seeks diversity combining various ethnic styles together such as oriental, Indian, Islam and Africa. In addition, future-oriented fashion of the 21st century, twists in texture, various kinds of materials and changes in technique help give impressions of freedom and bizarreness.

• 한국분말재료학회지
• /
• 제19권3호
• /
• pp.210-214
• /
• 2012

Mass production-capable $Li_2MnSiO_4$ powder was synthesized for use as cathode material in state-of-the-art lithium-ion batteries. These batteries are main powder sources for high tech-end digital electronic equipments and electric vehicles in the near future and they must possess high specific capacity and durable charge-discharge characteristics. Amorphous silicone was quite superior to crystalline one as starting material to fabricate silicone oxide with high reactivity between precursors of sol-gel type reaction intermediates. The amorphous silicone starting material also has beneficial effect of efficiently controlling secondary phases, most notably $Li_xSiO_x$. Lastly, carbon was coated on $Li_2MnSiO_4$ powders by using sucrose to afford some improved electrical conductivity. The carbon-coated $Li_2MnSiO_4$ cathode material was further characterized using SEM, XRD, and galvanostatic charge/discharge test method for morphological and electrochemical examinations. Coin cell was subject to 1.5-4.8 V at C/20, where 74 mAh/g was observed during primary discharge cycle.

• 한국융합학회논문지
• /
• 제8권7호
• /
• pp.191-198
• /
• 2017

본 연구는 영상기술과 공공문화콘텐츠의 새로운 접목형 융합상품으로서의 가능성을 제시하였다. 소변기에 영상장치를 장착한 본 제품은 기존에 없던 감성형 위생도기 제품으로서 화장실에 대한 인식의 제고를 가져왔을 뿐 아니라 하이테크한 전자제품과 위생도기의 제품을 접목시키는 새로운 시도이다. 또한 유니크한 아이디어로써 광고효과로써 공공정보 알림등 소변기의 새로운 시장성을 제시하는 제품개발 아이템이다. 상품화를 위하여 본 과제에서 제작할 디자인이 반영되도록 3D Rendering, 3D Mock-up 등을 활용해 별도의 제작공정을 들여 프로토타입 형태로 제작하고, 이 후 생산자의 협의 등을 통해 다양한 상품으로 확장 고려될 수 있을 것으로 판단된다. 차별화된 동영상 콘텐츠를 제공함으로써 경쟁력 있는 품질과 가격으로 소규모 업체의 프랜차이즈를 타겟으로 한 새로운 이미지 메이킹을 시도함에 따라 다양한 마케팅이 가능한 트렌드를 리드할 수 있도록 하였다.

• 한국식생활문화학회지
• /
• 제32권6호
• /
• pp.465-475
• /
• 2017

Purpose: This study investigated the dietary patterns associated with Korean food and the level of proper eating habits according to recognition of the Kimchi cooking method, and aimed to suggest the necessity of dietary education of traditional foods such as Kimchi. Methods: Based on the results of the national dietary survey conducted in 2014 by Ministry of Agriculture, Food and Rural Affairs of Korea, a total of 1200 subjects were classified into two groups, one that knew how to make Kimchi (53.8%) and another that did not (46.2%). Results: The group that knew how to make Kimchi (FG) showed significantly higher scores in knowledge of how to cook most types of Korean foods and traditional fermented foods than the other group (NG). Moreover, FG showed significantly higher scores in regularity in meals and a higher frequency of Korean foods such as rice, Kimchi, and grilled or stewed food, while it showed significantly lower scores in dietary risk factors than NG. In addition, FG showed significantly higher scores in dietary education interest and number of meals with family during the week than NG. Finally, FG had significantly higher scores in the degrees of practice of all eight items related to proper eating habits. Conclusion: Since recognition of Kimchi cooking has a great influence on maintenance of dietary life, dietary education to improve the cooking ability of traditional foods should be further strengthened.

• 공학교육연구
• /
• 제23권5호
• /
• pp.68-75
• /
• 2020

In order to cultivate the talents acquired in the fourth industrial revolution, developed countries' government are actively engaged in the campaigns encouraging K-12 students to participate in the maker movement. Maker education is regarded as one possible solution based on high tech in the era of the 4th Industrial Revolution, and it is spreading widely along with STEM education. In South Korea, STEAM education was actively conducted nationwide, and since 2017, STEAM and maker education have been linked showing mutual development. However, compared to STEAM education linked to the curriculum, comparison and activity-based research on maker education for teenagers is still insufficient. Therefore, this study aimed to suggest implications for STEAM education and maker education by analyzing the motivation of Korean youth to participate in maker activities. The subjects of this study are high school students who participated in maker education programs in student community for the first time in Korea. In this study, students were classified into engineering-related career group and non-engineering-related career groups based on their career intentions, and the motivation and understanding of participation in maker activities were compared. As a result of the study, male students participated more in maker education community activities than female students, and the engineering-related career group had a higher intention to participate in games, outdoor activities, IT equipment, digital production, and electrical/electronic production activities than the non-engineering-related career group. In addition, in the fields of handicraft/art, home baking, installing, and horticultural agriculture, there was no difference in the intention of participate in the engineering-related career group and the non-engineering-related career group. It was found that the engineering-related career group believed that there was a strong relationship between the maker education community activity, career exploration and future career choice, while the non-engineering-related career group believed that the relationship is less strong. It was also found that the engineering-related career group was participating more actively in the maker activity than the other group.

• 한국지반공학회논문집
• /
• 제36권9호
• /
• pp.45-55
• /
• 2020

X-ray CT는 암석시편의 공극 및 균열과 같은 내부 미세구조와 손상들의 정량적 분석에 활용되어 왔다. 원위치 CT는 외력 등 다양한 외적 요인에 영향을 받고 있는 암석 시편의 내외부 변화 과정을 관찰할 수 있게 해준다. 이의 확인을 위해, 암반/지반재료 특성분석에 활용한 원위치 X-ray CT 기술에 관한 최신 연구동향을 파악하였으며, 원위치 CT이미징이 가능한 암석의 수리-역학적 실험용 삼축셀을 개발하였다. 직경 25~50 mm 화강암 및 사암 코아시편의 원위치 CT이미징이 성공적으로 진행되었으며, 34~105 ㎛ 범위의 픽셀피치의 해상도를 취득할 수 있었다. 본 사전검토 촬영 실험을 통해 마이크로미터 스케일에서 암석의 내부구조 변화의 원위치 CT관찰이 가능한 것을 파악하였다. 요오드화 칼륨 용액은 CT이미지의 대비를 증가시키고 암석의 수리-역학 실험에서 주입유체로 사용할 수 있다.

• Smart Structures and Systems
• /
• 제6권5_6호
• /
• pp.439-459
• /
• 2010

Structural health monitoring (SHM) of civil infrastructure using wireless smart sensor networks (WSSNs) has received significant public attention in recent years. The benefits of WSSNs are that they are low-cost, easy to install, and provide effective data management via on-board computation. This paper reports on the deployment and evaluation of a state-of-the-art WSSN on the new Jindo Bridge, a cable-stayed bridge in South Korea with a 344-m main span and two 70-m side spans. The central components of the WSSN deployment are the Imote2 smart sensor platforms, a custom-designed multimetric sensor boards, base stations, and software provided by the Illinois Structural Health Monitoring Project (ISHMP) Services Toolsuite. In total, 70 sensor nodes and two base stations have been deployed to monitor the bridge using an autonomous SHM application with excessive wind and vibration triggering the system to initiate monitoring. Additionally, the performance of the system is evaluated in terms of hardware durability, software stability, power consumption and energy harvesting capabilities. The Jindo Bridge SHM system constitutes the largest deployment of wireless smart sensors for civil infrastructure monitoring to date. This deployment demonstrates the strong potential of WSSNs for monitoring of large scale civil infrastructure.

• 박물관보존과학
• /
• 제29권
• /
• pp.111-132
• /
• 2023

테라헤르츠파는 금속에 대부분의 신호가 반사되어 되돌아온다는 특성을 가지고 있다. 이를 활용하여 본 연구에서는 회화 문화재에서 금속 재료의 사용 여부와 그 분포범위를 확인하여 정보를 해석하는 연구를 진행하였다. 먼저 금속 분말 안료와 금속성의 색상과 질감을 표현하는 합성 펄 안료를 사용한 시편 테스트를 통해서는 금속 성분으로 인한 신호 단절과 단면 이미지에 반영되는 양상, 그리고 평면 이미지에서 높은 반사도를 보이는 기본적인 테라헤르츠 이미지 특성을 비교하였다. 이와 더불어 여러 형태의 한국화와 유화에 대한 이미지 분석을 진행하여 금속 채색 재료의 내부 채색 여부와 그 분포 범위를 파악하였으며 이를 바탕으로 그림의 상태 확인과 더불어 추가적인 미술사적 정보를 획득하였다. 테라헤르츠 이미징 기술은 금속 성분의 재료가 사용된 여러 유형의 회화에 대하여 채색 기법과 내부 정보에 대한 진단 분석으로 보존처리를 위한 자료 및 미술사적인 내용 규명에 활용할 수 있을 것으로 기대된다.

• Wind and Structures
• /
• 제37권4호
• /
• pp.255-274
• /
• 2023

The aim of this paper is to enhance the accuracy of predicting time-averaged external surface pressures on low-rise buildings by utilizing Computational Fluid Dynamics (CFD) simulations. To achieve this, benchmark studies of the Silsoe cube and the Texas Tech University (TTU) experimental building are employed for comparison with simulation results. The paper is structured into three main sections. In the initial part, an appropriate domain size is selected based on the precision of mean pressure coefficients on the windward face of the cube, utilizing Reynolds Averaged Navier-Stokes (RANS) turbulence models. Subsequently, recommendations regarding the optimal computational domain size for an isolated building are provided based on revised findings. Moving on to the second part, the Silsoe cube model is examined within a horizontally homogeneous computational domain using more accurate turbulence models, such as Large Eddy Simulation (LES) and hybrid RANS-LES models. For computational efficiency, transient simulation settings are employed, building upon previous studies by the authors at the Windstorm Impact, Science, and Engineering (WISE) Lab, Louisiana State University (LSU). An optimal meshing strategy is determined for LES based on a grid convergence study. Three hybrid RANS-LES cases are investigated to achieve desired enhancements in the distribution of mean pressure coefficients on the Silsoe cube. In the final part, a 1:10 scale model of the TTU building is studied, incorporating the insights gained from the second part. The generated flow characteristics, including vertical profiles of mean velocity, turbulence intensity, and velocity spectra (small and large eddies), exhibit good agreement with full-scale (TTU) measurements. The results indicate promising roof pressures achieved through the careful consideration of meshing strategy, time step, domain size, inflow turbulence, near-wall treatment, and turbulence models. Moreover, this paper demonstrates an improvement in mean roof pressures compared to other state-of-the-art studies, thus highlighting the significance of CFD simulations in building aerodynamics.

• 한국수자원학회:학술대회논문집
• /
• 한국수자원학회 2009년도 학술발표회 초록집
• /
• pp.2169-2175
• /
• 2009

This research aims to evaluate the concept of eco-efficient water infrastructure and provides a list of case studies in order to help understand the applicability of eco-efficient water infrastructure to Asia and the Pacific. A set of indicators have been explored to assess eco-efficiency in water infrastructure for the region on a micro and macro scale. The core idea of eco-efficiency, 'more value with less impact (on the environment)', has proven to be applicable in management of water infrastructure. The fundamental elements in eco-efficient water infrastructure should encompass physical infrastructure and non-physical infrastructure, which is more needed particularly in Asian countries. The case studies have demonstrated the applicability of the concept of eco-efficient water infrastructure. The Republic of Korea has provided the case of the eco-friendly approaches to enhance dam management and its innovative solutions how to use water more efficiently through state-of-art technologies. The experiences of Singapore are some of the best evidence to establish eco-efficient water infrastructure, for instance, the NEWater project via application of cutting edge technologies (recycled water) and institutional reform in water tariff systems to conserve water as well as enhance water quality. A list of indicators to assess eco-efficiency in water infrastructure have been discussed, and the research presents a myriad of project cases which are good to represent eco-efficiency in water infrastructure, including multipurpose small dams, customized flood defense systems, eco-efficient ground water use, and eco-efficient desalination plants. The study has presented numerous indicators in five different categories: 1) the status of water availability and infrastructure; 2) production and consumption patterns of freshwater; 3) agricultural products and sources of environmental loads; 4) damages from water-caused natural disaster; and 5) urban water supply and sanitation. There are challenges as well as benefits in such indicators, since the indicators should be applied very carefully in accordance with specific socio-economic, political and policy contexts in different countries in Asia and the Pacific Region. The key to success of establishment of eco-efficient water infrastructure in Asia primarily depends on the extent to which each country is committed to balancing its development of physical as well as non-physical water infrastructure. Particularly, it is imperative for Asian countries to transform its policy focus from physical infrastructure to non-physical infrastructure. Such shift will help lead to implementation of sustainable in Asian countries.