• 복식문화연구
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• 제15권6호
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• pp.1063-1077
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• 2007

The purpose of this research is to comprehend the various range of expressions of fantasies and to summarize the expressive effects of fantasies that appear most commonly in today's popular culture such as film and fashion. The followings are the results of the research: Fantasy means a genre of literary arts, which uses magic and supernatural figures as the themes or plots. The characteristics of the expressive effects of the costumes in fantasy movies are summarized as metaphor and symbol, hybrid, otherness, grotesque. After analyzing the costumes in fantasy movies, it is concluded that these characteristics can be conceptualized as the characteristics of the expressive effects in the field of fashion and they can be used as the basis in setting the visual images. This research also aims at recognizing and predicting the fashion trend by understanding closely at the popular cultures, using the films as a tool, which can be led to examining the possibility of combining various popular cultures.

• 한국진공학회:학술대회논문집
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• 한국진공학회 2014년도 제46회 동계 정기학술대회 초록집
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• pp.131-131
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• 2014

양자점은 전통적인 유기 염료에 비해 흡광영역이 넓고 발광 피크의 폭이 좁으며, 흡광과 발광 사이의 에너지 차가 커서 검출이 용이하고, 광안정성이 우수할 뿐만 아니라, 단순히 크기를 조절함으로써 발광 피크의 에너지를 제어할 수 있는 특장 때문에 많은 연구가 진행되었다. 그러나 많은 나노입자들과 마찬가지로 실질적인 응용을 위해서는 양자점 나노입자들도 대부분 표면개질을 거쳐야 하는데, 이 과정이 까다롭고 또 표면개질 중에 나노입자들의 응집이 일어나거나 광특성이 나빠지는 등의 문제가 흔히 발생한다. 한편, 서브미크론 크기의 입자들은 나노입자에 비해 응집현상이 미미해서 상대적으로 취급이 용이하다. 그 중에서도 실리카 입자들은 합성방법도 쉽게 확립되어 있고 생체친화성이 우수하며 그 표면화학 반응이 이미 잘 알려져 있어서 활용하기가 매우 용이하다. 따라서 양자점 층을 실리카 표면 가까이에 자기조립을 통해 배열한 하이브리드 구조는 양자점의 장점을 편리하게 이용할 뿐만 아니라 실리카의 표면개질 특성도 그대로 이용할 수 있다는 이중의 장점이 있다. 본 논문에서는 코어/쉘 구조로 안정화된 II-VI 반도체 양자점 층을 아래 그림 1과 같이 실리카 콜로이드 내에 배열한 하이브리드 구조를 소개하고, 이 하이브리드 구조를 표면개질 하여 LED 칩 위에 패키징 함으로써 백색광을 제조한 연구 및 더 나아가 중심에 초상자성 클러스터 핵을 배치하고 이를 둘러싼 실리카 콜로이드 표면 가까이에 양자점 층을 배열한 초상자성 하이브리드 구조를 합성하여 이를 on-site sensor에 적용한 연구 결과를 소개한다.

• 한국진공학회:학술대회논문집
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• 한국진공학회 2011년도 제40회 동계학술대회 초록집
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• pp.484-485
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• 2011

반사방지(Anti-Reflection, AR) 특성은 태양전지, LED, 광검출기 등의 광전소자와 디스플레이의 효율과 투과도를 향상시키기 위해 적용되고 있다. 또한 최근에 네비게이션, 스마트폰의 보급 증가로 인해 소형 디스플레이에 지문방지와 동시에 반사방지 기능을 갖는 필름이 사용되고 있다. 현재 적용되고 있는 반사방지 필름은 다층박막 코팅으로 형성된 필름[1]으로 생산단가와 박막의 내구성 및 신뢰성에 문제점을 가지고 있다. 이런 문제점을 해결하기 위해 나노구조로 제작 되는 반사방지 필름에 관한 연구가 활발히 진행되고 있다[2]. 나노구조로 형성된 반사방지 구조는 moth-eye 구조라고 하며, 기본 원리는 원뿔 형태를 형성된 나노 구조를 통해 공기와 나노구조 사이의 유효 굴절률을 서서히 변화시켜 반사를 줄이는 것이다. 그러므로 moth-eye 나노구조는 파장 이하의 pitch와 파장 크기의 높이를 갖도록 구조가 제작되어야 한다[3]. Photo-lithography[4], e-beam lithography[5], interference lithography[6], dip-pen nanolithography[7], hybrid nano-patterning lithography[8] 등 여러 가지 방법으로 나노 구조를 제작하고 있으나, 네비게이션이나 스마트폰 등에 적용될 수 있는 대면적으로 제작하기 위해서는 roll-to-roll printing과 같은 대면적 공정을 이용하여 제작하는 것이 필요하다. 본 논문에서는 원통형 알루미늄 rod에 양극산화를 통해 다공성 AAO(anode aluminium oxide) template를 제작하고, roll-to-roll printing 기술을 사용하여 moth-eye 나노구조를 갖는 반사방지 필름을 제작하는 것에 대해 기술하였다.

• 국제초고층학회논문집
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• 제9권3호
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• pp.221-233
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• 2020

Based on past experiences of natural disasters and fires in Japan, it is stipulated by law that fire-resistant buildings larger than a certain size should be unique in the world. Recent interest in global environmental issues has led to the active introduction of wooden buildings also in Japan, and it is expected that wooden buildings will become larger and higher in size. This paper introduces the background of the development of fire-resistant laminated timber with a "Self-Charring-Stop layer", the contents of this development including other related developments, and the application of these technologies. In addition, towards the realization of much larger and higher buildings in the future, the current problems and issues to be solved are set and the necessity of the future technological development is described. Finally, a conceptual model of wooden high-rise building is proposed, which will be able to be constructed in 2025 by the further technological development.

• Korean Chemical Engineering Research
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• 제46권5호
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• pp.852-857
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• 2008

광촉매의 고정화는 광촉매의 이용범위를 넓히기 위해서 매우 중요한 기술이다. 광촉매를 고정화시키기 위해 티타늄 표면을 양극산화 시켜 $TiO_2$로 전환시킬 수 있다. 양극산화에 의해 제조된 $TiO_2$는 광촉매 활성을 가지고 있으며 표면은 스펀지와 비슷한 형태를 나타내었다. 다양한 초기농도, 습도, 방전전압 하에서 양극산화에 의해 티타니아를 제조 이를 이용하여 기상의 아세트알데히드와 VOC의 광촉매 분해반응을 연구하였다. 양극산화 티타니아의 반응성은 상대습도가 증가함에 따라 증가하였으나 너무 높은 습도는 반응성을 감소시켰다. 광촉매 반응과 전기 방전을 결합시키면 VOC 제거효율이 크게 증가 되었으나, 과도한 전압을 가하여 코로나 방전이 발생되면 반응속도가 오히려 감소되었다. 최적 상대습도는 40%였으며 최적 방전전압은 암방전 영역인 5 kV였다.

• The Plant Pathology Journal
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• 제23권1호
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• pp.34-36
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• 2007

Introduction of vegetatively propagated Petunia hybrids since 1992 led to increasing virus infections of propagation material. Petunia hybrid 'Surfinia' cultivated for pot-plant showed yellowing symptom along with stunt. Flowers were smaller in size and showed color-break symptom. Tobacco mosaic virus(TMV-pet) was isolated from the diseased petunia. Healthy petunia plants inoculated with TMV-pet induced mottle on leaves and color-break on flowers, and plants were stunted. Nucleotide sequences of coat protein gene amplified from RNA prepared from Nicotiana tabacum cv. Samsun infected with TMV-pet were determined(GenBank accession no. DQ981481). It showed 99.0% nucleotide sequence homology with TMV-potato3-2(GenBank accession no. AF318215) isolated from potato showing yellow mosaic and stunt symptom, and with a TMV Korean strain(GenBank accession no. X68110). This is the first reported observation of TMV from vegetatively propagated petunia in Korea.

• Weed & Turfgrass Science
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• 제5권4호
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• pp.274-279
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• 2016

Aphanisticus congener is a newly recorded buprestid (Coleoptera) insect pest of turfgrass in Korea. This buprestid pest was initially found from turfgrass conservation site in a greenhouse in Jinju, Gyeongnam province, Korea in July, 2014. The Aphanisticus in the family Buprestidae is a leaf miner. A. congener is the close species of A. aeneus which was firstly reported as sugarcane leaf sucker in India. A. congener was active from early July to late August in the greenhouse. Damage by the insect led to drying out and browning of turfgrass leaf because larva fed on cell sap of leaves and adult fed on leaf surface. A. congener damaged Zoysia japonica, Z. sinica, Conodon dactylon, and Poa pratensis when adults were artificially released into potted turfgrasses in the laboratory. In green house, A. congener damaged Z. japonica, Z. macrostachya, Z. matrella, Z. sinica, Conodon dactylon, and hybrid zoysiagrass. However, no damage symptoms were observed from the same turfgrass accessions in the nearby field of the greenhouse. Thus, the new coleopteran pest may be a warm-adapted pest for turfgrass, damaging turfgrass leaf only in warmer conditions.

• International Journal of Computer Science & Network Security
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• 제21권8호
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• pp.87-96
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• 2021

The demand for e-learning through video lectures is rapidly increasing due to its diverse advantages over the traditional learning methods. This led to massive volumes of web-based lecture videos. Indexing and retrieval of a lecture video or a lecture video topic has thus proved to be an exceptionally challenging problem. Many techniques listed by literature were either visual or audio based, but not both. Since the effects of both the visual and audio components are equally important for the content-based indexing and retrieval, the current work is focused on both these components. A framework for automatic topic-based indexing and search depending on the innate content of the lecture videos is presented. The text from the slides is extracted using the proposed Merged Bounding Box (MBB) text detector. The audio component text extraction is done using Google Speech Recognition (GSR) technology. This hybrid approach generates the indexing keywords from the merged transcripts of both the video and audio component extractors. The search within the indexed documents is optimized based on the Naïve Bayes (NB) Classification and K-Means Clustering models. This optimized search retrieves results by searching only the relevant document cluster in the predefined categories and not the whole lecture video corpus. The work is carried out on the dataset generated by assigning categories to the lecture video transcripts gathered from e-learning portals. The performance of search is assessed based on the accuracy and time taken. Further the improved accuracy of the proposed indexing technique is compared with the accepted chain indexing technique.

• 한국항공운항학회지
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• 제28권4호
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• pp.171-175
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• 2020

The present and future cities are expanding, and the noise and environmental pollution in cities are getting worse day by day, causing saturation of road and subway traffic. As a result, citizens are spending a great deal of time and money. The use of the sky as a measure to solve this problem has become a reality. However, airplanes that require airstrips and noisy helicopters are difficult to use in cities. As a solution, PAVs and UAMs that generate low noise and enable vertical takeoff and landing using electric energy, motor, hybrid, and hydrogen energy, are attracting attention, with its practicality being promoted in many countries. The development of urban environment and technology has led to the emergence of Personal Air Vehicle (PAV), Vertical Takeoff and Landing (eVTOL), and Urban Air Mobility (UAM) for shipping. Though currently at the level of testing, general commercialization of these air transport means is expected in the next five to fifteen years. This study suggests a plan on the application of human factors to the introduction of PAV and UAM.

• 한국임상약학회지
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• 제32권4호
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• pp.281-287
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• 2022

Pharmacists should maintain professional competencies to provide optimal pharmaceutical care services to patients, which can be achieved through continued commitment to lifelong learning. Traditionally continuing education (CE) has been widely used as a way of lifelong learning for many healthcare professionals. It, however, has several limitations. CE is delivered in the form of instructor-led education focused on multiple learners. Learning is passive and reactive for participants, so it sometimes does not lead to bringing behavioral changes in workplace performance. Therefore, recently the concept of lifelong learning tends to move from CE toward continuing professional development (CPD). CPD is an ongoing process that improves knowledge, skills, and competencies throughout a professional's career. It is a more comprehensive structured approach toward the enhancement of personal competencies. It emphasizes an individual's learning needs and goals and enables learning to become proactive, conscious, and self-directed. CPD consists of four stages: reflect, plan, learn, and evaluate. CE is one component of CPD. Each stage is recorded in a CPD portfolio. There are many practical difficulties in implementing the complete CPD system for lifelong learning of pharmacists in many countries including Korea. Applying a hybrid form that utilizes CPD and CE together, as in the case of some countries, could be an alternative. Furthermore, in undergraduate pharmacy education, it is necessary to teach students about CPD and train them on how to perform CPD as a pharmacist.