The purpose of this study is to analyze the eco-friendly design characteristics of contemporary children’s collections. Photos from FirstviewKorea were utilized for analysis; 29 brands were selected that included children’s clothing collections featuring eco-friendly characteristics from 2007 to 2018. The results are as follows. First, naturalness was the most frequent characteristic of environmentally friendly children’s collections. It was not conveyed in an eccentric way in any season, showed a relatively uniform distribution, and was seen in various ways, including printed on the fabric and expressed in appliqués and embroidery. Second, handcrafted features frequently changed according to seasonal trends. Various methods such as beading, embroidery, applique, sewing techniques, and handbags were used, which enhanced manual workability, discrimination from other designs. Third, traditionality is divided into the characteristics of ethnicity and revivalism. National traditions were expressed in the clothing and reflected the current generation while connecting to the past. Fourth, simplicity appeared in classic designs such as simple silhouettes, sparse decoration, natural colors, and comfortable dress length that is not tight on the body. Simplicity was not a frequent feature due to the characteristics of the children’s clothing collections. Fifth, playfulness functioned to enhance the children’s clothing’s wear frequency. Although it was the least frequent of all the characteristics, it seemed to increase the design fun and the clothing’s value by fusing with other characteristics such as handcraftedness and naturalness.

This study documents the 3-phase BLDC(Brushless DC) motor to improve conventional ventilator motor. Energy efficiency, noise, and air pollution reduction for the high-performance vibration of the BLDC motor has been used in many fields. BLDC motors for ventilator, we studied the controller and software.

화훼장식품 제작 시 플로랄 폼은 쉽게 썩지 않기 때문에 감상기간 이후 심각한 환경문제를 발생시키는 문제점을 지니고 있다. 본 연구를 통해 플로랄 폼을 사용하지 않고 화훼 고유의 부분별 특성을 살려 여러 가지 효과적인 꽃의 고정형태를 디자인하였다. 화훼장 식의 표현기법 연구를 위해 가지, 줄기, 잎, 열매, 꽃, 뿌리 등 식물소재 고유의 형태적, 재료적인 특성을 파 악하였다. 이를 통해 화훼의 각 부분이 가진 다양한 조형적 특성을 활용하여 꽃을 고정시키는 여러 가지 기법으로 작품 제작에 적용하였다. 본 연구를 통해 환경문제를 야기할 수 있는 인공적 인 부자재인 플로랄 폼 대신 꽃의 각 부분의 특성을 살려 여러 가지 기법을 제안하였다. 화훼장식의 미적 측면뿐만 아니라 제작 후 발생하는 환경문제에 대한 대안을 제시하고 화훼장식에서의 활용 매체를 다양화할 수 있었다. 특히 일상생활에서 쉽게 구할 수 있는 자 연소재를 이용하여 누구나 쉽게 디자인할 수 있으므로 화훼장식 저변 확대에도 기여할 수 있다. 앞으로 우리 주변의 작은 소품에서부터 공간장식으로까지 그 활용범 위가 확대될 것으로 기대된다. 이러한 화훼 고유의 특 성을 살린 표현 기법의 지속적인 연구, 개발을 통해 자연친화적인 개념의 화훼장식이 확대되어야 한다.

This research developed eco-friendly UHPC using industrial by-products (Ground Granulated Blast Furnace Slag, Bottom Ash) by replacing cement and silica powder. The Chloride Penetration Resistances of the developed eco-friendly UHPC were evaluated. It is found that the developed eco-friendly UHPC shows adequate compressive strength and enhanced chloride durability.

This research developed eco-friendly UHPC using industrial by-products (Ground Granulated Blast Furnace Slag, Bottom Ash) by replacing cement and silica powder. The Chloride Penetration Resistances of the developed eco-friendly UHPC were evaluated. It is found that the developed eco-friendly UHPC shows adequate compressive strength and enhanced chloride durability.

최근 납의 대체물질로서 연구되고 있는 바륨(Ba)과 요오도(I) 등은 차폐능은 우수하지만, 30 keV 근처의 에너지 영역에서 특성 X선이 방출되는 문제점이 있다. 본 연구에서는 황산바륨(BaSO4)과 산화비스무스(BiO)로 구성된 친환경 이중차폐체의 적용가능성을 검증하기 위한 선행연구로 몬테카를로 시뮬레이션을 통해 투과스펙트럼, 차폐율 등을 평가하였다. 평가결과, 0.6mm 두께의 Pb 단일층과 비교하여 0.1 mm 두께의 BaSO4 하부층에 BiO 층의 두께가 0.4 mm 와 0.5 mm에서는 각각 차폐율이 1.9 %, 3.9 % 높은 성능을 보였다. 뿐만 아니라, 상대적인 중량 또한 각각 34.5 %, 28 % 경량화가 가능하다는 것을 알 수 있었다.

This study was conducted to validate the planting status of landscape plants and elements of Seoul National University of Education. Despite of long historical background of school, this type of research was seldomly conducted before as innovation strategy of university. And the purpose of this study was to offer the opportunity of design criteria of school to offer the new concept of eco-friendly design and analyzing plants species or compatibility of plants with surroundings. The natural environment was analyzed and light environment was specially investigated to compare the ability of plants. The current situation and compatibility of plants were investigated according to the site and species. So, the result of the study should be implemented as valuable resources for improving the landscape spaces and plants of school in the future. The landscape design includes the followings: a survey of the present status, a site analysis, s schematic design, and the needs of students for design development. To create the landscape spaces, we proposed school spaces by the concept of eco- friendly of nature image. The university space was designed to have educational spaces like safety, green amenity and rest areas for the students which are designed to be harmonious with other surroundings. Based on that, some of the university space was specially proposed with CAD imagination work and all the results were accomodated under the concept of new strategy of university innovation for the future. Through the university space designed by this study, the university students ,faculties and other dwellers around university will have more opportunity of contact with nature and increase the value of university effectively.