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The Acquisition of Perfective and Imperfective Aspect by Korean Learners of Spanish: analysis based on the learners' oral corpus

Autor: Dahee Ahn

Publikováno v: Estudios Hispánicos. 80:101-129

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3f6bb9b9647db8faa85736a89d0918fb
https://doi.org/10.21811/eh.80.101

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Solution processed thin films of Nb-doped TiO2 nanoparticles as hole blocking layer for organic solar cells

Autor: Wonmok Lee, Incheol Kim, Kyungkon Kim, Ilwoo Ok, Dahee Ahn, Jin Ho Kim, Hyunjung Lee

Publikováno v: Thin Solid Films. 553:161-165

In this study, Nb-doped TiO 2 nanoparticles were synthesized by sol–gel method with controlled doping ratios up to 6 mol%. Catalyzed by p -toluene sulfonic acid, alkoxide precursors of Ti and Ni were stabilized by acetylacetone ligand, and converte

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ad35e3fdfb8ff2ec517ebd57b82e6f93
https://doi.org/10.1016/j.tsf.2013.11.127

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Direct sulfonation and photocrosslinking of unsaturated poly(styrene-b-butadiene-b-styrene) for proton exchange membrane of direct methanol fuel cell

Autor: Wonmok Lee, Hae Woong Park, Dahee Ahn, Taihyun Chang, Hyunjung Lee, Seulgi Kim

Publikováno v: Journal of Membrane Science. 427:85-91

In this report, we demonstrate a simple preparation of the partially sulfonated poly(styrene-b-butadiene-b-styrene) (sSBS), casting and photocrosslinking of tough films which can be used as a proton exchange membrane (PEM) for direct methanol fuel ce

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::453246f68b1cf10fdaacf8a2436454fb
https://doi.org/10.1016/j.memsci.2012.09.008

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Thermally crosslinked sulfonated polyethersulfone proton exchange membranes for direct methanol fuel cells

Autor: Jin Chul Kim, Jin Chul Jung, Dahee Ahn, Doo-Hwan Jung, Wonmok Lee, Haekyoung Kim, Jin-Sung Jang, Seongyop Lim, Seung Chul Gil

Publikováno v: Journal of Membrane Science. :2-9

Sulfonated polyethersulfones (sPES) with thermally crosslinkable allyl or propargyl endgroups were synthesized and evaluated as methanol-tolerant proton exchange membranes (PEMs) for use in a direct methanol fuel cell (DMFC). sPES with a controlled d

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ee61146958284821d5618d55bb008f1c
https://doi.org/10.1016/j.memsci.2012.05.064

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Corrigendum to 'Direct sulfonation and photocrosslinking of unsaturated poly(styrene-b-butadiene-b-styrene) for proton exchange membrane of direct methanol fuel cell' [J. Membr. Sci. 427C (2013) 85–91]

Autor: Hae Woong Park, Wonmok Lee, Hyunjung Lee, Dahee Ahn, Taihyun Chang, Seulgi Kim

Publikováno v: Journal of Membrane Science. 431:267

Corrigendum to ‘‘Direct sulfonation and photocrosslinking of unsaturated poly(styrene-b-butadiene-b-styrene) for proton exchange membrane of direct methanol fuel cell’’ [J. Membr. Sci. 427C (2013) 85–91] Seulgi Kim , Hyunjung Lee , Dahee Ah

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::513201d9343cee0a2507ef38ebf4d4ba
https://doi.org/10.1016/j.memsci.2013.01.010

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