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자율주행시대의 주차시설 재생을 위한 분류 체계 - 서울 3대 도심 내 공영 주차시설을 대상으로
박치영(Park, Chiyoung) 대한건축학회 2021 대한건축학회 학술발표대회 논문집 Vol.41 No.2
This study aims to derive a hierarchical classification method for the existing parking facilities in large cities. The 5 classification criteria - space, structure, size, use, and accessibility - were derived through a survey and analysis on the existing 205 public parking facilities in Jongno·Jung-gu, Gangnam-gu, and Yeongdeungpo-gu, the major downtown areas of Seoul. This classification method contributes to set the early direction of the existing parking facilities regeneration such as remodeling, reconstruction, and multi-dimensional land use planning.
Park, Chiyoung,Kim, Hyehyeon,Kim, Saehee,Kim, Chulhee American Chemical Society 2009 JOURNAL OF THE AMERICAN CHEMICAL SOCIETY - Vol.131 No.46
<P>The cyclodextrin covered porous silica nanoparticles (Si-MPs) exhibited enzyme responsive characteristics. The cyclodextrin gatekeepers on the surface of Si-MPs can be hydrolyzed by a-amylase to release guest molecules from the porous reservoir. The ester linkage in the stalk part of the cyclodextrin gatekeeper can also be cleaved by lipase to release guests from the channel. Our approach would provide a unique methodology for controlled delivery systems.</P>
Park, Chiyoung,Im, Moon Sup,Lee, Sanghwa,Lim, Jino,Kim, Chulhee WILEY-VCH Verlag 2008 Angewandte Chemie Vol.47 No.51
<B>Graphic Abstract</B> <P>Take the tube: A systematic approach was used to construct a series of functional nanotubes by cooperative self-assembly of dendrons and cyclodextrins and their nanotube–nanoparticle hybrids (see picture). The nanotubes are also capable of sensing proteins by inducing specific binding of proteins on the tube surface. The “nanotube toolkit” has a great potential for the construction of functional nanomaterials. <img src='wiley_img/14337851-2008-47-51-ANIE200804087-content.gif' alt='wiley_img/14337851-2008-47-51-ANIE200804087-content'> </P>
Park, Chiyoung,Lee, Im Hae,Lee, Sanghwa,Song, Yumi,Rhue, Mikyo,Kim, Chulhee National Academy of Sciences 2006 PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF Vol.103 No.5
<P>The dendritic building blocks with a focal pyrene unit self-organize into vesicles in aqueous phase. The in situ inclusion of the focal pyrene units into the cavity of beta- or gamma-cyclodextrin (CD) induces self-assembled organic nanotubes with an average outer diameter of approximately 45 nm and inner diameter of 22 nm. The surface of the nanotube is covered with CD. Therefore, the functional group on the surface of the nanotube is controlled simply by modifying the functionality of CD. The removal of CD from the nanotube with poly(propylene glycol) reversibly generates vesicles. This work provides an efficient methodology not only to create an additional class of CD-covered organic nanotubes but also to exhibit reversible transformation of nanotubes and vesicles triggered by the motifs of dendron self-assembly, CD inclusion, and pseudorotaxane formation.</P>
Park, Chiyoung,Oh, Kyoungho,Lee, Sang ,Cheon,Kim, Chulhee VCH Verlagsgesellschaft mbH 2007 Angewandte Chemie Vol.46 No.9
<B>Graphic Abstract</B> <P>Stringing them along: The pores of a mesoporous silica particle were filled with guest molecules and then blocked by threading cyclodextrin molecules (CDs) onto the surface-grafted polyethylenimine (PEI) chains at pH 11. At pH 5.5, the guest molecules can be released from the pores of the particle by reversible dethreading of the CDs from the PEI chains. <img src='wiley_img/14337851-2007-46-9-ANIE200603404-content.gif' alt='wiley_img/14337851-2007-46-9-ANIE200603404-content'> </P>
Park, Chiyoung,Lim, Jino,Yun, Mikyoung,Kim, Chulhee WILEY-VCH Verlag 2008 Angewandte Chemie Vol.47 No.16
<B>Graphic Abstract</B> <P>The missing link: Supramolecular transformation from a vesicle to a fibrous nanostructure has been achieved by photolytic cleavage and supramolecular reorganization of a dendritic building block containing a 2-nitrobenzyl group (see picture). Furthermore, supramolecular aggregates of an amide dendron with a photoisomerizable azobenzene unit exhibit controlled release of encapsulated molecules upon photoirradiation in the aqueous phase. <img src='wiley_img/14337851-2008-47-16-ANIE200705271-content.gif' alt='wiley_img/14337851-2008-47-16-ANIE200705271-content'> </P>