40 research outputs found
알레르기 비부비동염 마우스 모델에서 포도상구균 B형 장독소가 비용형성에 미치는 영향
No full text학위논문 (박사)-- 서울대학교 대학원 : 의학과, 2011.8. 이재서.Docto
정상인 접형동 점막에서 Cystic fibrosis transmembrane conductance regulator가 섬모운동에 미치는 영향
No full text학위논문(석사) --서울대학교 대학원 :의학과 이비인후과학,2008.2.Maste
Method for Gas Separation and Storage Using Carbon Nano Sheet
No full text본 발명은 탄소나노시트를 이용하여 가스를 분리 및 저장하는 방법에 관한 것으로, 보다 상세하게는 얼음이 인터컬레이션된 탄소나노시트에 혼합 가스에 포함된 친수성 가스를 분리하여 저장할 수 있는 방법에 관한 것이다. 본 발명에 따르면, 일반 벌크 상태의 얼음에 비하여 많은 양의 가스를 저장할 수 있으며, 다양한 혼합가스의 분리에 이용할 수 있다
Visualized Graphene Domains by Aligned Nematic Liquid Crystals
No full textDirect visualization of large-area graphene domains is one of the key issues in graphene research, because their electronic, magnetic, chemical and mechanical properties are dominated by their domain size and direction of hexagonally packed carbon matrix. All previous methods used to visualize the domain and boundary of graphene, which include atomic force microscopy, scanning electron microscopy, transmission electron microscopy and raman spectroscopy, are only effective for small area up to several micrometer. This is unable to determine the domain size of the large-area graphene. Here, we demonstrate a very simple method to macroscopically visualize the graphene domains and their boundaries by using nematic liquid crystals on the surface of graphene. Epitaxially aligned nematic liquid crystals on graphene surface are observed using polarized optical microscopy, and obtained textures from liquid crystals are well matched with the domain of graphene. Using this approach, we investigated the effect of domain size and boundary on the quality of graphene in terms of conductance. This method will open a new window for studies on the control of domain, boundary and structure and properties of graphene
