• 환경사랑
• /
• s.68
• /
• pp.3-3
• /
• 2013

• Proceedings of the KAIS Fall Conference
• /
• 2012.05a
• /
• pp.49-51
• /
• 2012

클래식 음악만이 영화음악의 소스가 아니며, 이것은 작곡에서 최근에 생긴 변화도 아니다. 1906년에 '캐힐'이 텔하모니움을 발명하고 100년 이상이 지났으며, '피에르 쉐퍼'가 1948년에 뮤직 콘크리트를 시도한 이후 약 60년의 시간이 흘렀다. 사운드를 제어하는 기술과 장비는 하루가 다르게 변화하고 있으며, 대부분의 영화음악 작곡가들은 컴퓨터와 다양한 사운드 모듈을 통해 효과적이고 창의성 높은 다양한 소리를 만들어 내고 있고 이것은 그들의 강력한 작곡 도구이다.

• Proceedings of the Korean Operations and Management Science Society Conference
• /
• 2000.04a
• /
• pp.597-600
• /
• 2000

계속적인 증가 추세를 보이고 있는 교통량으로 인해 환경 문제뿐 아니라 교통사고로 인한 사상자 및 물적피해가 상당량으로 집계되고 있다. 본 논문에서는 데이터융합 및 앙상블 클러스터링방법을 이용한 교통사고 심각도 분류분석방법을 제안함으로서 교통사고예방에 기여하고자 한다. 이를 위하여 신경망과 Decision-Tree기법을 이용하여 얻은 물적피해와 신체상해가 발생할 확률을 융합하는 전형적인 데이터 융합기법(템스터-쉐퍼, 베이지안 방법, 로지스틱융합방법)을 사용하였다. 또한, 분류정확도를 향상시키고자 Bootstrap 재추출 방법을 이용해 얻어진 여러 개의 분류예측 결과 중 다수의 분류결과를 선택하는 앙상블 (arcing, bagging)기법을 적용하였다. 더불어, 본 연구에서는 클러스터링 방법을 제시하고, 이 방법이 기존의 융합기법, 앙상블기법과 비교한 결과, 분류예측면에서 정확도가 향상됨을 보였다.

• KIEAE Journal
• /
• v.4 no.3
• /
• pp.161-169
• /
• 2004

Today, interest in soundscape idea is growing according to recognize the surrounding sounds as design target and to introduce them into environmental spaces positively. The word "soundscape" proposed by Canadian composer R. Murray Schafer is now very popular in the world. So various soundscape designs based on soundscape idea are carried on worldwide for acoustic ecology. Also in Korea, several researchers are carrying on studies about the soundscape, but basic concepts behind soundscape design are insufficiently defined and studied. In that sense, this study aims to review and to arrange the concept of soundscape Idea and soundscape desgn systematically. Through investigation of literature concerning soundscape study, the backgrounds and characteristics about soundscape idea were reviewed and concepts of soundscape design were arranged.

• Ocean and Polar Research
• /
• v.31 no.2
• /
• pp.157-165
• /
• 2009

The study examined overuse of the fishery resource. Influence of fishing activity was estimated by application of Schaefer model's. Fishing efforts that produced the maximum sustainable yield were determined in the model, allowing the effect of overfishing to be assessed. In the model, a wide variety of fish species as well as crustaceans and shellfish were susceptible to overfishing, while mollusks were not. Overfishing by modern techniques exacted a greater toll than more traditional methods. The results of the modeling study suggest that the 'Buy bag' input-control system of fisheries resource management warrants consideration, as does modernization, expansion and strengthening of self-control management of the fishery resource. Finally, more effective efforts in dissemination of policy information and education concerning the fishery resource are needed.

• Journal of Adhesion and Interface
• /
• v.20 no.3
• /
• pp.110-115
• /
• 2019

Graphene oxide has been gathering interests as a way to exfoliate graphene. Since the oxidation group of graphene oxide can hydrogen bond with various functional groups, tremendous efforts have been actively conducted to apply various applications. However, graphene oxide alone cannot substantially possess the mechanical properties required for the practical application. Therefore, in this study, polydopamine, which is a bio-mimetic mussel protein-inspired material, was combined with graphene oxide to form a large-area composite membrane at the liquid-gas interface. In addition, the morphology of the polydopamine-graphene oxide composite thin film was also controlled to obtain a composite membrane having a nano-wrinkle structure. It can be expected to be used in the next generation seawater desalination membranes or carbon composites because it can form mechanically superior and sophisticated nanostructures.